技术领域technical field
本发明是关于一种针头结构，特别是关于一种可即时确认回血状况而提高手术安全性的针头结构。The present invention relates to a needle structure, in particular to a needle structure capable of instantly confirming blood return status and improving operation safety.
背景技术Background technique
在使用一般针具的尖针(sharp needle)进行填充物(如：玻尿酸)注射时，为避免细菌感染，不会把针头空腔内的空气注射到组织里面。在注射前，使用者会先进行排气的动作，把填充物先推入针头内的空腔中，直到针头内部的空腔都充满玻尿酸后，确定针头内在无空气，才会进行注射。When using a sharp needle of a general needle to inject fillers (such as hyaluronic acid), in order to avoid bacterial infection, the air in the cavity of the needle will not be injected into the tissue. Before injection, the user will perform the action of exhausting the air first, pushing the filler into the cavity inside the needle until the cavity inside the needle is filled with hyaluronic acid, and then the injection will be performed after confirming that there is no air in the needle.
一般应用于医美注射用的填充物不是液体，是接近固体的材质，所以在注射时，必须要避开血管的位置。因为一旦注射到血管，将会造成血管的堵塞，容易引起皮肤坏死、失明、中风、肺栓塞等严重的副作用。Generally, the fillers used in medical aesthetic injections are not liquid, but close to solid materials, so when injecting, it is necessary to avoid the position of blood vessels. Because once injected into blood vessels, it will cause blockage of blood vessels, which can easily cause serious side effects such as skin necrosis, blindness, stroke, and pulmonary embolism.
填充物注射的位置通常是在皮下，然而在实际注射时，其实并没有办法确切目视皮下组织有无血管存在，所以都算是盲目的注射(blind injection)，其系因在注射时并没有办法百分之百确定注射的位置。因此，在实务上，注射者必须熟知解剖构造，选择适当的注射平面与位置，或是使用钝针(blunt cannula)，亦或是在注射时进行回抽(aspirate)的动作，确认有无回血以确保不会注射到血管内。The place where the filler is injected is usually subcutaneous. However, in the actual injection, there is actually no way to see whether there are blood vessels in the subcutaneous tissue, so it is considered a blind injection (blind injection). 100% sure where to inject. Therefore, in practice, the injector must be familiar with the anatomical structure, select the appropriate injection plane and location, or use a blunt cannula, or perform aspirate during injection to confirm whether there is blood return To ensure that it will not be injected into the blood vessel.
目前公知的技术是在注射时进行回抽的动作，以确认有无回血。然而，一般注入的填充物依据本身的材质会有不同的黏滞系数，而比较黏性的填充物，例如：微晶瓷(Radiesse)、洢莲丝(Ellanse)或大分子的玻尿酸，在排气后会填满针头内的空腔。如果在注射这些填充物时，针尖在血管内，就算我们进行回抽的动作，也会因为填充物黏性的影响，导致太黏而让血液无法回流到针筒内，因此无法观察到回血现象。若这时候还继续推针筒把填充物注射到血管，就会造成血管的栓塞。所以就算是用回抽的方法，如果是使用到黏滞系数大的填充物，还是存有误判的风险。Currently known technology is to perform a withdrawal action during injection to confirm whether there is blood return. However, generally injected fillers will have different viscosity coefficients depending on their materials, and more viscous fillers, such as: microcrystalline porcelain (Radiesse), lotus silk (Ellanse) or macromolecular hyaluronic acid The air will fill the cavity inside the needle. If the needle tip is in the blood vessel when injecting these fillers, even if we perform a withdrawal action, it will be too sticky due to the influence of the filler’s viscosity, making it impossible for the blood to flow back into the syringe, so the phenomenon of blood return cannot be observed . If you continue to push the syringe to inject the filler into the blood vessel at this time, it will cause blood vessel embolism. Therefore, even if the withdrawal method is used, if a filler with a large viscosity coefficient is used, there is still a risk of misjudgment.
另外一种公知的技术是使用钝针，其针头不是尖的，而是呈现圆弧状。理论上比较不会伤到血管，但是太细的钝针，还是具有某等程度的尖针(sharp needle)的穿刺力，因此使用钝针仍然会有刺到血管的风险存在。由上述可知，无论是尖针还是钝针，在注射时均会产生一定的危险性，其主要是因为在针尖进入到皮肤之后，注射者没有办法确实知道针尖是否在血管内。因此，目前市场上缺乏可以快速确认回血并能大幅降低手术失败风险的针头结构，故相关业者正在寻求其解决之道。Another known technique is to use a blunt needle, the tip of which is not pointed but rounded. Theoretically, it will not hurt blood vessels, but blunt needles that are too thin still have a certain degree of puncture force of sharp needles, so there is still a risk of puncturing blood vessels when using blunt needles. It can be seen from the above that whether it is a sharp needle or a blunt needle, there will be certain risks during injection, mainly because the injector has no way to know whether the needle point is in the blood vessel after the needle point enters the skin. Therefore, there is currently a lack of needle structures on the market that can quickly confirm blood return and greatly reduce the risk of surgical failure, so relevant industry players are looking for solutions.
发明内容Contents of the invention
因此，本发明提供一种针头结构，其能够让注射者在针尖进入到皮肤之后，无需经过回抽，利用血管内自然的压力产生的回血现象，即可得知针尖是否在血管内。此外，本发明的针头结构具有不连通的第一腔室与第二腔室，第一腔室装有填充物，第二腔室为透明且具有开孔，用以确认回血的状况。当开孔打开时可确认回血状况，若关闭时可避免注射填充物回流进入第二腔室，可使注射者在施打时避免填充物打入血管而造成血管栓塞，进而提高手术的安全性。另外，特殊的针头结构使注射者能方便地操作，让注射者更能顺利地完成施打疗程。Therefore, the present invention provides a needle structure, which allows the injector to know whether the needle point is in the blood vessel by utilizing the blood return phenomenon caused by the natural pressure in the blood vessel without drawing back after the needle point enters the skin. In addition, the needle structure of the present invention has a disconnected first chamber and a second chamber, the first chamber is filled with filler, and the second chamber is transparent and has an opening for confirming the status of blood return. When the hole is opened, the blood return status can be confirmed. If it is closed, the injection filler can be prevented from flowing back into the second chamber, which can prevent the injector from entering the blood vessel and causing blood vessel embolism, thereby improving the safety of the operation. . In addition, the special needle structure enables the injector to operate it conveniently, allowing the injector to complete the treatment course more smoothly.
本发明的一实施方式为一种针头结构，用以注射填充物并监测回血情况。此针头结构包含针体、壳体以及分隔件。针体包含针体腔室与针口，针体腔室连接针口。再者，壳体连接针体。壳体包含壳体腔室与开孔，针体腔室连通壳体腔室而形成针头空腔。此外，分隔件设于针头空腔中，且此分隔件将针头空腔分隔出第一腔室与第二腔室。第一腔室与第二腔室彼此隔离，分隔件将针口分隔出注射口与回血口。第一腔室装有填充物且连通注射口，而第二腔室则连接回血口与开孔。One embodiment of the present invention is a needle structure for injecting fillers and monitoring blood return. The needle structure includes a needle body, a casing and a partition. The needle body includes a needle body chamber and a needle port, and the needle body chamber is connected to the needle port. Furthermore, the housing is connected to the needle body. The housing includes a housing chamber and an opening, and the needle body chamber communicates with the housing chamber to form a needle cavity. In addition, the partition is disposed in the needle cavity, and the partition separates the needle cavity into the first chamber and the second chamber. The first chamber and the second chamber are isolated from each other, and the separator separates the needle port from the injection port and the blood return port. The first chamber is filled with filler and communicates with the injection port, while the second chamber is connected with the blood return port and the opening.
借此，本发明的针头结构能够让注射者在针尖进入到皮肤之后，在注射的过程中无需经过回抽即可确定针尖的位置是在血管内还是在血管外。再者，特殊的腔室结构可用以确认回血的状况，使注射者在施打时避免填充物打入血管而造成血管栓塞，进而提高了手术的安全性。Thereby, the needle structure of the present invention enables the injector to determine whether the position of the needle point is inside the blood vessel or outside the blood vessel without drawing back after the needle point enters the skin. Furthermore, the special chamber structure can be used to confirm the status of blood return, so that the injector can avoid the filler from entering the blood vessel and causing blood vessel embolism, thereby improving the safety of the operation.
前述实施方式的其它实施例如下：前述的针体可为钝针或尖针。另外，前述壳体设有开关部，此开关部可开闭开孔。Other examples of the aforementioned embodiment are as follows: the aforementioned needle body may be a blunt needle or a pointed needle. In addition, the housing is provided with a switch portion, and the switch portion can open and close the opening.
本发明的另一实施方式为一种针头结构，用以注射填充物并监测回血情况。此针头结构包含内针部与外针部。其中内针部包含第一针体与第一壳体。第一针体包含针体腔室与针口，针体腔室连接针口。而第一壳体则连接第一针体，且第一壳体包含壳体腔室。壳体腔室连通针体腔室而形成第一腔室。此第一腔室装有填充物且连通针口。此外，外针部环设于内针部的外侧，且外针部包含开孔与回血口。外针部与内针部之间形成第二腔室，第二腔室与第一腔室彼此隔离。Another embodiment of the present invention is a needle structure for injecting filler and monitoring blood return. The needle structure includes an inner needle part and an outer needle part. Wherein the inner needle part includes the first needle body and the first shell. The first needle body includes a needle body chamber and a needle port, and the needle body chamber is connected to the needle port. The first housing is connected to the first needle body, and the first housing includes a housing chamber. The housing chamber communicates with the needle chamber to form a first chamber. This first chamber is filled with filling and communicates with the needle port. In addition, the outer needle part is arranged around the outer side of the inner needle part, and the outer needle part includes an opening and a blood return port. A second chamber is formed between the outer needle part and the inner needle part, and the second chamber is isolated from the first chamber.
借此，本发明的针头结构通过内外针部形成特殊的环状腔室，其可用来确认回血的状况，而且能让注射者在施打时避免填充物打入血管而造成血管栓塞，大幅地提高手术的安全性。In this way, the needle structure of the present invention forms a special annular chamber through the inner and outer needles, which can be used to confirm the status of blood return, and can also allow the injector to prevent the filler from entering the blood vessel and causing blood vessel embolism, greatly improving the Improve the safety of surgery.
前述实施方式的其它实施例如下：前述外针部可包含第二针体与第二壳体。其中第二针体环设于第一针体的外侧。回血口开设于第二针体上。此外，第二壳体连接第二针体且环设于第一壳体的外侧。开孔开设于第二壳体上。前述第二针体为钝针或尖针。此外，前述第二壳体可设有开关部，开关部开闭开孔。第二腔室连接回血口与开孔。前述第二壳体可包含近端部与远端部。近端部具有二端，其中一端连接第二针体，另一端则连接远端部。开孔设于远端部上。其中内针部可位移地定位于近端部与远端部。此外，前述外针部可包含连接座与注射组件。连接座连通开孔且连接第二壳体。注射组件连接连接座，且注射组件包含注射壳体与注射杆。注射壳体可拆卸地连接连接座。注射杆则设于注射壳体且可位移地定位于注射壳体内。前述填充物可为玻尿酸(Hyaluronic Acid)、羟基磷灰石钙(CalciumHydroxyapatite，Radiesse)、聚己内酯(Polycaprolactone，Ellanse)、胶原蛋白(Collagen)、聚左旋乳酸(Poly-L-Lactic Acid，PLLA，Sculptra)、脂肪(Fat)、聚丙烯胺(Polyacrylamide，Aaquamid)、丙酮特安皮质醇(Triamcinolone Acetonide)或利多卡因(Lidocaine)。Other examples of the foregoing embodiment are as follows: the foregoing outer needle portion may include a second needle body and a second housing. Wherein the second needle body ring is arranged on the outside of the first needle body. The blood return port is opened on the second needle body. In addition, the second housing is connected to the second needle body and is arranged around the outer side of the first housing. The opening is opened on the second casing. The aforementioned second needle body is a blunt needle or a pointed needle. In addition, the aforementioned second casing may be provided with a switch portion, and the switch portion opens and closes the opening. The second chamber is connected to the blood return port and the opening. The aforementioned second housing may include a proximal portion and a distal portion. The proximal part has two ends, one of which is connected to the second needle body, and the other end is connected to the distal part. An opening is provided on the distal portion. Wherein the inner needle part is displaceably positioned at the proximal part and the distal part. In addition, the aforementioned outer needle part may include a connecting seat and an injection component. The connecting seat communicates with the opening and connects with the second housing. The injection assembly is connected to the connection seat, and the injection assembly includes an injection housing and an injection rod. The injection housing is detachably connected to the connecting seat. The injection rod is arranged in the injection housing and displaceably positioned in the injection housing. The aforementioned fillers can be hyaluronic acid (Hyaluronic Acid), calcium hydroxyapatite (CalciumHydroxyapatite, Radiesse), polycaprolactone (Polycaprolactone, Ellanse), collagen (Collagen), poly-L-lactic acid (Poly-L-Lactic Acid, PLLA) , Sculptra), Fat, Polyacrylamide (Aaquamid), Triamcinolone Acetonide, or Lidocaine.
本发明的又一实施方式为一种针头结构，用以注射填充物并监测回血情况。此针头结构包含针体、壳体以及导管。针体包含针体腔室、针口以及分隔件。针口连接针体腔室。分隔件则设于针体腔室中。壳体连接针体，且壳体包含壳体腔室与开孔，针体腔室连通壳体腔室。导管具有注射口与管壁，导管可位移地穿设于壳体腔室与针体腔室且装有填充物。此外，分隔件与针口相隔第一间距，而注射口与针口相隔第二间距。当第一间距小于第二间距时，分隔件与管壁分离而形成回血口；当第一间距大于等于第二间距时，管壁连接分隔件，借以令回血口封闭。Yet another embodiment of the present invention is a needle structure for injecting fillers and monitoring blood return. The needle structure includes a needle body, a casing and a conduit. The needle body includes a needle chamber, a needle port and a partition. The needle port is connected with the needle chamber. The separator is arranged in the needle chamber. The housing is connected with the needle, and the housing includes a housing chamber and an opening, and the needle chamber communicates with the housing chamber. The catheter has an injection port and a tube wall, and the catheter can displaceably pass through the housing chamber and the needle body chamber and is filled with fillers. In addition, the partition is separated from the needle port by a first distance, and the injection port is separated from the needle port by a second distance. When the first distance is smaller than the second distance, the partition is separated from the tube wall to form a blood return port; when the first distance is greater than or equal to the second distance, the tube wall connects with the partition to close the blood return port.
借此，本发明的针头结构通过导管穿设针体来实现填充物的注入以及回血的确认。当注射者利用导管施打时，可避免填充物打入血管而造成血管栓塞，能提高手术的安全性。再者，特殊的针头结构结合导管使注射者能方便地操作，进而让注射者更能顺利地完成施打疗程。Thereby, the needle structure of the present invention realizes the injection of the filler and the confirmation of blood return through the catheter passing through the needle body. When the injector uses the catheter to inject, it can avoid the filler from entering the blood vessel and cause blood vessel embolism, which can improve the safety of the operation. Furthermore, the special needle structure combined with the catheter allows the injector to operate it conveniently, thereby allowing the injector to complete the treatment course more smoothly.
附图说明Description of drawings
图1是绘示本发明一实施例的针头结构的立体示意图。FIG. 1 is a three-dimensional schematic diagram illustrating a needle structure according to an embodiment of the present invention.
图2是绘示图1的针头结构的侧视图。FIG. 2 is a side view illustrating the structure of the needle in FIG. 1 .
图3是绘示图2的剖线3-3的剖视图。FIG. 3 is a cross-sectional view illustrating the section line 3-3 in FIG. 2 .
图4A是绘示图1的开关部的关闭示意图。FIG. 4A is a schematic diagram illustrating the closing of the switch part in FIG. 1 .
图4B是绘示图1的开关部的开启示意图。FIG. 4B is a schematic diagram showing the opening of the switch part in FIG. 1 .
图5是绘示图1的针头结构的操作示意图。FIG. 5 is a schematic view illustrating the operation of the needle structure of FIG. 1 .
图6是绘示本发明另一实施例的针头结构的侧视图。FIG. 6 is a side view illustrating a needle structure according to another embodiment of the present invention.
图7是绘示图6的剖线7-7的剖视图。FIG. 7 is a cross-sectional view illustrating a section line 7 - 7 in FIG. 6 .
图8是绘示本发明又一实施例的针头结构的立体示意图。FIG. 8 is a perspective view illustrating a needle structure according to another embodiment of the present invention.
图9是绘示本发明再一实施例的针头结构的侧视图。Fig. 9 is a side view showing the structure of a needle according to another embodiment of the present invention.
图10A是绘示本发明另一实施例的针头结构在确认回血时的侧视图。FIG. 10A is a side view illustrating a needle structure according to another embodiment of the present invention when blood return is confirmed.
图10B是绘示图10A的针头结构在注射时的侧视图。FIG. 10B is a side view illustrating the needle structure of FIG. 10A during injection.
图11A是绘示本发明又一实施例的针头结构在确认回血时的侧视图。FIG. 11A is a side view illustrating the needle structure of another embodiment of the present invention when blood return is confirmed.
图11B是绘示图11A的针头结构在注射时的侧视图。FIG. 11B is a side view illustrating the needle structure of FIG. 11A during injection.
图12A是绘示本发明再一实施例的针头结构插入血管的示意图。FIG. 12A is a schematic diagram illustrating a needle structure inserted into a blood vessel according to another embodiment of the present invention.
图12B是绘示图12A的针头结构在注射时的示意图。FIG. 12B is a schematic diagram illustrating the needle structure of FIG. 12A during injection.
图13A是绘示本发明另一实施例的针头结构的外针部的剖视图。13A is a cross-sectional view illustrating the outer needle portion of the needle structure according to another embodiment of the present invention.
图13B是绘示图13A的针头结构在注射时的侧视图。Fig. 13B is a side view illustrating the needle structure of Fig. 13A during injection.
图13C是绘示本发明又一实施例的针头结构的侧视图。Fig. 13C is a side view illustrating the needle structure of another embodiment of the present invention.
具体实施方式detailed description
以下将参照附图说明本发明的多个实施例。为明确说明起见，许多实务上的细节将在以下叙述中一并说明。然而，应了解到，这些实务上的细节不应用以限制本发明。也就是说，在本发明部分实施例中，这些实务上的细节是非必要的。此外，为简化附图起见，一些公知惯用的结构与元件在附图中将以简单示意的方式绘示；并且重复的元件将可能使用相同的编号表示。Various embodiments of the present invention will be described below with reference to the accompanying drawings. For the sake of clarity, many practical details are included in the following narrative. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some well-known and commonly used structures and elements will be schematically shown in the drawings; and repeated elements may be denoted by the same numerals.
请一并参阅图1～4B。图1是绘示本发明一实施例的针头结构100的立体示意图。图2是绘示图1的针头结构100的侧视图。图3是绘示图2的剖线3-3的剖视图。图4A是绘示图1的开关部330的关闭示意图。图4B是绘示图1的开关部330的开启示意图。如图所示，针头结构100是用以注射填充物，填充物可为玻尿酸(Hyaluronic Acid)、微晶瓷(Radiesse)、洢莲丝(Ellanse)、胶原蛋白(Collagen)、聚左旋乳酸(Poly-L-Lactic Acid；PLLA；Sculptra)、脂肪(Fat)、聚丙烯胺(Polyacrylamide；Aaquamid)或是其它不宜注射到血管内的药物，例如：丙酮特安皮质醇(Triamcinolone Acetonide)或利多卡因(Lidocaine)。上述微晶瓷(Radiesse)的主要成份为羟基磷灰石钙(Calcium Hydroxyapatite)，而洢莲丝(Ellanse)的主要成份为聚己内酯(Polycaprolactone)。由上述可知，本发明的针头结构100可以应用于多种医疗的需求上。此针头结构100包含针体200、壳体300以及分隔件400。Please also refer to Figures 1-4B. FIG. 1 is a perspective view illustrating a needle structure 100 according to an embodiment of the present invention. FIG. 2 is a side view illustrating the needle structure 100 of FIG. 1 . FIG. 3 is a cross-sectional view illustrating the section line 3-3 in FIG. 2 . FIG. 4A is a schematic diagram showing the closing of the switch part 330 in FIG. 1 . FIG. 4B is a schematic diagram showing the opening of the switch part 330 in FIG. 1 . As shown in the figure, the needle structure 100 is used to inject fillers, which can be hyaluronic acid (Hyaluronic Acid), microcrystalline porcelain (Radiesse), Ellanse (Ellanse), collagen (Collagen), poly-L-lactic acid (Poly -L-Lactic Acid; PLLA; Sculptra), fat (Fat), polyacrylamide (Aaquamid) or other drugs that are not suitable for intravascular injection, such as: Triamcinolone Acetonide or Lidocaine (Lidocaine). The main component of the aforementioned Radiesse is Calcium Hydroxyapatite, while the main component of Ellanse is Polycaprolactone. It can be seen from the above that the needle structure 100 of the present invention can be applied to various medical needs. The needle structure 100 includes a needle body 200 , a housing 300 and a partition 400 .
针体200包含针体腔室210与针口220，针体腔室210连接针口220。针体200可为钝针或尖针。钝针的前端为圆弧形，其针口220位于前端的侧边。尖针则为一般的斜口针。而且针体200为细长的金属管，且呈中空圆柱状，以方便刺入或抽出皮肤。The needle body 200 includes a needle body chamber 210 and a needle port 220 , and the needle body chamber 210 is connected to the needle port 220 . The needle body 200 can be a blunt needle or a pointed needle. The front end of the blunt needle is arc-shaped, and its needle port 220 is located at the side of the front end. The pointed needle is a general oblique needle. Moreover, the needle body 200 is an elongated metal tube, and is in the shape of a hollow cylinder, so as to facilitate piercing or pulling out of the skin.
壳体300连接针体200。壳体300包含壳体腔室310、开孔320、开关部330以及壳体壁340，针体腔室210连通壳体腔室310而形成针头空腔102。再者，开孔320开设于壳体壁340的侧边。开关部330对应开孔320并装设于壳体壁340上，且开关部330可打开或关闭开孔320。详细地说，开关部330为一个可开关的活动阀门，其可让壳体300内部的壳体腔室310与外界的空气相通或隔绝。此开关部330可通过手动的方式来控制开关。另外，壳体300是由硬质塑胶所制成，其可呈透明或半透明状，而本实施例的壳体壁340为透明状，其可让注射者快速地分辨是否有血液进入壳体腔室310之中。The housing 300 is connected with the needle body 200 . The housing 300 includes a housing chamber 310 , an opening 320 , a switch portion 330 and a housing wall 340 . The needle body chamber 210 communicates with the housing chamber 310 to form the needle cavity 102 . Furthermore, the opening 320 is opened on a side of the casing wall 340 . The switch part 330 corresponds to the opening 320 and is installed on the casing wall 340 , and the switch part 330 can open or close the opening 320 . In detail, the switch part 330 is a switchable movable valve, which allows the housing chamber 310 inside the housing 300 to communicate with or isolate the outside air. The switch part 330 can be switched manually. In addition, the casing 300 is made of hard plastic, which can be transparent or translucent, and the casing wall 340 of this embodiment is transparent, which allows the injector to quickly distinguish whether blood has entered the casing cavity room 310.
分隔件400设于针头空腔102中，且此分隔件400将针头空腔102分隔出第一腔室410与第二腔室420。第一腔室410与第二腔室420彼此隔离。此外，分隔件400将针口220分隔出注射口430与回血口440。第一腔室410装有填充物且连通注射口430，而第二腔室420则连接回血口440与开孔320。换句话说，本发明是将针头结构100内的针头空腔102利用分隔件400划分为双腔的构造，这两个腔室分别为第一腔室410与第二腔室420。第一腔室410与第二腔室420可以是等大，也可为一大一小。第一腔室410与第二腔室420的形状可以是圆形、椭圆形、矩形或者多边形。The partition 400 is disposed in the needle cavity 102 , and the partition 400 separates the needle cavity 102 into the first chamber 410 and the second chamber 420 . The first chamber 410 and the second chamber 420 are isolated from each other. In addition, the partition 400 separates the needle port 220 from the injection port 430 and the blood return port 440 . The first chamber 410 is filled with filler and connected to the injection port 430 , while the second chamber 420 is connected to the blood return port 440 and the opening 320 . In other words, the present invention divides the needle cavity 102 in the needle structure 100 into two chambers by the partition 400 , and the two chambers are the first chamber 410 and the second chamber 420 . The first chamber 410 and the second chamber 420 may be of the same size, or may be one large and one small. The shapes of the first chamber 410 and the second chamber 420 may be circular, oval, rectangular or polygonal.
图5是绘示图1的针头结构100的操作示意图，此针头结构100的第一腔室410装有填充物，第二腔室420则用以确认回血。针头结构100的操作可分为两个步骤。第一个步骤为穿刺步骤，此穿刺步骤是由注射者(医师或医疗人员)将针体200刺入被施打者的皮肤。第二个步骤为注射步骤，其系将填充物注射至非血管的组织内。FIG. 5 is a schematic diagram illustrating the operation of the needle structure 100 in FIG. 1 , the first chamber 410 of the needle structure 100 is filled with a filler, and the second chamber 420 is used to confirm blood return. The operation of needle structure 100 can be divided into two steps. The first step is the puncturing step. In this puncturing step, the injector (physician or medical personnel) will puncture the needle body 200 into the skin of the person to be injected. The second step is the injection step, which involves injecting the filler into nonvascular tissue.
在穿刺步骤中，注射者可利用第二腔室420来确认回血状况，其原理主要是利用毛细现象以及动静脉本身具有的压力。若针口220刺到血管，则血管内的血液会从第二腔室420流至开孔320，由于壳体壁340邻近开孔320之处为透明材质，故注射者可直接观测有无回血的现象发生。上述做法就像是一般在抽血的时候，抽血者为了确认针尖是否已经进入血管内，会在针头的硬质塑胶壳体300部位观察回血的状况，这是因为血管的血液具有一定的压力，会把针尖内的空气推挤出去，进而使血液跑到针头连接的壳体300中。而本发明的第二腔室420就是具有这样的功能，第二腔室420内部是有空气的，但是却不与第一腔室410的注射物质互相连接，所以第一腔室410与第二腔室420均为独立的空间。在注射时，第二腔室420保持大气压力，但是一旦针尖刺到血管里面，因为毛细现象跟动静脉的压力，注射者马上就可以在针头的透明硬质塑胶壳体300部位观察到回血的现象。而本发明相较于公知的针头，本发明的针头结构100不需要通过回抽的动作，就可以达到确知针头是否在血管内的效果，而注射者在穿刺步骤中，只要看到没有回血，就可以确知针尖不在血管内。因此，在无回抽的动作条件下，注射者使用本发明的针头结构100即可安心的注射，不但增加了手术的安全性，还可避免许多不必要的医疗纠纷。另外值得一提的是，在穿刺前，注射者要先打开壳体300的开关部330，因为开关部330可以让第二腔室420内的空气保持大气压力，所以一旦针尖在血管内，注射者马上可以看到回血而停止注射。当注射者确定欲注射的位置并确定不再移动之后，即可将开关部330的阀门关闭，然后进入注射步骤。In the puncturing step, the injector can use the second chamber 420 to confirm the blood return status, and the principle is mainly to use the capillary phenomenon and the pressure of the arteriovenous itself. If the needle port 220 punctures the blood vessel, the blood in the blood vessel will flow from the second chamber 420 to the opening 320. Since the shell wall 340 adjacent to the opening 320 is made of transparent material, the injector can directly observe whether there is blood return phenomenon occurs. The above method is like when drawing blood. In order to confirm whether the needle tip has entered the blood vessel, the blood drawer will observe the return of blood at the hard plastic shell 300 of the needle. This is because the blood in the blood vessel has a certain pressure. , will push out the air in the needle tip, and then make the blood run into the housing 300 to which the needle is connected. And the second chamber 420 of the present invention has such function exactly, and the inside of the second chamber 420 has air, but does not interconnect with the injection substance of the first chamber 410, so the first chamber 410 and the second chamber The chambers 420 are independent spaces. During injection, the second chamber 420 maintains atmospheric pressure, but once the needle tip penetrates into the blood vessel, due to the capillary phenomenon and the pressure of the arteries and veins, the injector can immediately observe the return of blood at the transparent hard plastic shell 300 of the needle. Phenomenon. Compared with the known needles of the present invention, the needle structure 100 of the present invention can achieve the effect of knowing whether the needle is in the blood vessel without the need for a retraction action, and the injector only needs to see that there is no blood return during the puncture step. , it can be confirmed that the needle tip is not in the blood vessel. Therefore, under the action condition of no withdrawal, the injector can safely inject by using the needle structure 100 of the present invention, which not only increases the safety of the operation, but also avoids many unnecessary medical disputes. It is also worth mentioning that before the puncture, the injector should first open the switch part 330 of the housing 300, because the switch part 330 can keep the air in the second chamber 420 at atmospheric pressure, so once the needle tip is in the blood vessel, the injection The patient can immediately see blood return and stop the injection. After the injector confirms the position to be injected and confirms that he will not move any more, he can close the valve of the switch part 330 and then enter the injection step.
由于注射步骤是将填充物注射至非血管的组织内，若于穿刺步骤后确定没有回血，注射者在确知针尖不在血管内之后，即可推针筒让第一腔室410内的填充物顺利进入组织内。此外，在注射步骤中，开关部330关闭阀门可以使空气留在第二腔室420内，并保持第二腔室420的固定气体压力，进而让第一腔室410的填充物不致因压力的关系回流到第二腔室420内，致使第二腔室420内的空间依然保持畅通而不被堵塞。此外，填充物往往需要多点的注射，而注射者可以在拔出针头结构100后，再度使用此针头结构100进行下一个位置的治疗，这时只要再把开关部330的阀门打开，第二腔室420即可再度恢复侦测回血的功能。借此，本发明的针头结构100能够让注射者在针尖进入到皮肤之后，无需经过回抽即可得知针尖是否在血管内，因此注射者在施打时能避免填充物打入血管而造成血管栓塞，进而提高了手术的安全性。Since the injection step is to inject the filler into non-vascular tissue, if it is determined that there is no blood return after the puncture step, the injector can push the needle barrel to let the filler in the first chamber 410 after confirming that the needle tip is not in the blood vessel. successfully entered the organization. In addition, during the injection step, the switch part 330 closes the valve so that the air stays in the second chamber 420 and maintains a constant gas pressure in the second chamber 420, so that the filling of the first chamber 410 will not be affected by pressure fluctuations. The relation flows back into the second chamber 420, so that the space in the second chamber 420 remains unobstructed and not blocked. In addition, the filler often requires multiple injections, and the injector can use the needle structure 100 again to treat the next position after pulling out the needle structure 100. At this time, as long as the valve of the switch part 330 is opened, the second The chamber 420 can resume the function of detecting blood return again. In this way, the needle structure 100 of the present invention allows the injector to know whether the needle tip is in the blood vessel without pulling back after the needle tip enters the skin, so the injector can avoid the filler from entering the blood vessel and causing Vascular embolism, thereby improving the safety of the operation.
请一并参阅图6与图7，图6是绘示本发明另一实施例的针头结构100a的侧视图。图7是绘示图6的剖线7-7的剖视图。如图所示，针头结构100a用以注射填充物，此针头结构100a包含内针部500与外针部600。Please refer to FIG. 6 and FIG. 7 together. FIG. 6 is a side view illustrating a needle structure 100a according to another embodiment of the present invention. FIG. 7 is a cross-sectional view illustrating a section line 7 - 7 in FIG. 6 . As shown in the figure, the needle structure 100 a is used for injecting fillers, and the needle structure 100 a includes an inner needle part 500 and an outer needle part 600 .
内针部500包含第一针体510与第一壳体520。第一针体510包含针体腔室512与针口514，针体腔室512连接针口514。而第一壳体520则连接第一针体510，且第一壳体520包含壳体腔室522。壳体腔室522连通针体腔室512而形成第一腔室530，第一腔室530装有填充物且连通针口514。The inner needle part 500 includes a first needle body 510 and a first housing 520 . The first needle 510 includes a needle chamber 512 and a needle port 514 , and the needle chamber 512 is connected to the needle port 514 . The first housing 520 is connected to the first needle body 510 , and the first housing 520 includes a housing cavity 522 . The housing chamber 522 communicates with the needle body chamber 512 to form a first chamber 530 , and the first chamber 530 is filled with a filler and communicates with the needle port 514 .
外针部600环设于内针部500的外侧，且外针部600包含第二针体610与第二壳体620。其中第二针体610环设于第一针体510的外侧，且回血口612开设于第二针体610上。此外，第二壳体620连接第二针体610且环设于第一壳体520的外侧。开孔622与开关部624均开设于第二壳体620上。再者，外针部600与内针部500之间形成第二腔室630，第二腔室630与第一腔室530彼此隔离，且第二腔室630连接回血口612与开孔622。而开关部624与图4A、4B的开关部330的结构相同，不再赘述。另外，第二壳体620是由硬质塑胶所制成，其可呈透明或半透明状，而本实施例的第二壳体620为透明状，其可让注射者快速地分辨是否有血液进入第二腔室630之中。借此，本发明的针头结构100a通过内针部500与外针部600形成特殊的环状腔室，其可用来确认回血的状况，而且能让注射者在施打时避免填充物打入血管而造成血管栓塞，大幅地提高手术的安全性。The outer needle part 600 is disposed around the outer side of the inner needle part 500 , and the outer needle part 600 includes a second needle body 610 and a second housing 620 . Wherein the second needle body 610 is arranged around the outside of the first needle body 510 , and the blood return port 612 is opened on the second needle body 610 . In addition, the second housing 620 is connected to the second needle body 610 and is disposed around the outer side of the first housing 520 . Both the opening 622 and the switch part 624 are opened on the second casing 620 . Furthermore, a second chamber 630 is formed between the outer needle part 600 and the inner needle part 500 , the second chamber 630 is isolated from the first chamber 530 , and the second chamber 630 is connected to the blood return port 612 and the opening 622 . The structure of the switch part 624 is the same as that of the switch part 330 in FIGS. 4A and 4B , and will not be repeated here. In addition, the second casing 620 is made of hard plastic, which can be transparent or translucent, and the second casing 620 of this embodiment is transparent, which allows the injector to quickly distinguish whether there is blood into the second chamber 630 . In this way, the needle structure 100a of the present invention forms a special annular chamber through the inner needle part 500 and the outer needle part 600, which can be used to confirm the status of blood return and allow the injector to prevent the filler from entering the blood vessel during injection And cause vascular embolism, greatly improve the safety of surgery.
图8是绘示本发明又一实施例的针头结构100b的立体示意图。此针头结构100b包含第一针体710、第一壳体720、第二针体730以及第二壳体740。其中第一针体710包含第一针体腔室712与第一针口714，第一针体腔室712连接第一针口714，且第一针体710的剖面可呈圆形、椭圆形、矩形或多边形。第一壳体720连接第一针体710，且第一壳体720包含第一壳体腔室722，第一针体腔室712连通第一壳体腔室722而形成第一腔室702。再者，第二针体730固接第一针体710，两者彼此贴合，且第二针体730的剖面也可呈圆形、椭圆形、矩形或多边形。第二针体730包含第二针体腔室732与第二针口734。第二针体腔室732连接第二针口734，且第二针口734邻近第一针口714。此外，第二壳体740连接第二针体730，且第二壳体740包含第二壳体腔室742、开孔744、开关部746以及壳体壁748。第二针体腔室732连通第二壳体腔室742而形成第二腔室704。第一腔室702与第二腔室704彼此隔离。第一腔室702装有填充物，而第二腔室704连接第二针口734与开孔744。而开关部746装设于壳体壁748上，且开关部746可打开或关闭开孔744。再者，第二壳体740之壳体壁748部分呈透明状，其可让注射者快速地分辨是否有血液进入第二腔室704之中。本实施例的开关部746为盖子，其枢接于壳体壁748的边缘。当开关部746盖合壳体壁748时，第二腔室704与外界的空气隔绝。而此开关部746也可通过手动的方式来操控。另外值得一提的是，第二针体730的一端可呈弯曲状，亦即第二针体730靠近第二壳体740的部位呈弯曲状。此弯曲状的结构会造成第一壳体720的延伸方向与第二壳体740的延伸方向相交一个夹角。此夹角可大于10度且小于90度。而本实施例的夹角为45度，其目的是让第二壳体740有足够的设置空间，而且夹角过小会使第一壳体720与第二壳体740过于靠近，在操作开关部746时易造成不便。因此，本发明的针头结构100b不但可在不回抽的条件下确认回血的状况，避免填充物打入血管而造成血管栓塞以提高手术的安全性，而且操作方便，让注射者更能顺利地完成施打疗程。FIG. 8 is a perspective view illustrating a needle structure 100b according to another embodiment of the present invention. The needle structure 100 b includes a first needle body 710 , a first housing 720 , a second needle body 730 and a second housing 740 . Wherein the first needle body 710 comprises a first needle body chamber 712 and a first needle port 714, the first needle body chamber 712 is connected to the first needle port 714, and the cross section of the first needle body 710 can be circular, oval, rectangular or polygons. The first housing 720 is connected to the first needle 710 , and the first housing 720 includes a first housing chamber 722 , and the first needle chamber 712 communicates with the first housing chamber 722 to form the first chamber 702 . Furthermore, the second needle body 730 is fixedly connected to the first needle body 710 , and the two are attached to each other, and the cross section of the second needle body 730 can also be circular, elliptical, rectangular or polygonal. The second needle body 730 includes a second needle body chamber 732 and a second needle port 734 . The second needle chamber 732 is connected to the second needle port 734 , and the second needle port 734 is adjacent to the first needle port 714 . In addition, the second housing 740 is connected to the second needle body 730 , and the second housing 740 includes a second housing cavity 742 , an opening 744 , a switch portion 746 and a housing wall 748 . The second needle chamber 732 communicates with the second housing chamber 742 to form the second chamber 704 . The first chamber 702 and the second chamber 704 are isolated from each other. The first chamber 702 is filled with a filler, and the second chamber 704 is connected to the second needle port 734 and the opening 744 . The switch part 746 is installed on the casing wall 748 , and the switch part 746 can open or close the opening 744 . Furthermore, the shell wall 748 of the second shell 740 is partly transparent, which allows the injector to quickly distinguish whether there is blood entering the second chamber 704 . The switch portion 746 in this embodiment is a cover, which is pivotally connected to the edge of the casing wall 748 . When the switch portion 746 covers the housing wall 748 , the second chamber 704 is isolated from the outside air. And the switch part 746 can also be controlled manually. It is also worth mentioning that one end of the second needle body 730 may be curved, that is, the part of the second needle body 730 close to the second housing 740 is curved. The curved structure causes the extension direction of the first housing 720 and the extension direction of the second housing 740 to intersect at an included angle. This included angle can be greater than 10 degrees and less than 90 degrees. In this embodiment, the included angle is 45 degrees, the purpose of which is to allow the second casing 740 to have enough space for installation, and if the included angle is too small, the first casing 720 and the second casing 740 will be too close to each other. It is easy to cause inconvenience when the part 746 is used. Therefore, the needle structure 100b of the present invention can not only confirm the status of the blood return without withdrawing the blood, avoid the filler entering the blood vessel and cause blood vessel embolism to improve the safety of the operation, but also is easy to operate, so that the injector can more smoothly Complete the treatment session.
图9是绘示本发明再一实施例的针头结构100c的侧视图。此针头结构100c包含针体800、壳体300以及分隔件400。配合参阅图1，图9的实施方式中，壳体300与分隔件400均分别与图3中壳体300与分隔件400相同，不再赘述。特别的是，图9实施方式的针头结构100c为钝针，其针体800的前端呈圆弧状。其中分隔件400设于针头空腔102中，且分隔件400将针头空腔102分隔出第一腔室410与第二腔室420。第一腔室410与第二腔室420彼此隔离。而且分隔件400将针口220分隔出注射口430与回血口440。第一腔室410装有填充物且连通注射口430，而第二腔室420则连接回血口440与开孔320。由于针口220位于前端的侧边，因此注射口430与回血口440均开设于针体800前端的侧边。值得一提的是，分隔件400靠近针口220的前端与注射口430之间仍有一段间隔，可以让注射填充物与监测回血情况同时进行。此外，若分隔件400的前端与注射口430切齐，则注射者在操作针头结构100c时可能会发生注射口430在血管内而回血口440在血管外的状况，而本实施例可以避免此状况发生。借此，针头结构100c具有不连通的第一腔室410与第二腔室420，第一腔室410装有填充物，而第二腔室420为透明且壳体300设有开孔320与开关部330，用以确认回血的状况。当开孔320打开时可确认回血状况，若关闭时可避免注射填充物进入第二腔室420。整体结构可使注射者在施打时避免填充物打入血管中，进而提高了手术的安全性。FIG. 9 is a side view illustrating a needle structure 100c according to another embodiment of the present invention. The needle structure 100c includes a needle body 800 , a housing 300 and a separator 400 . Referring to FIG. 1 , in the embodiment shown in FIG. 9 , the casing 300 and the partition 400 are the same as the casing 300 and the partition 400 in FIG. 3 , and will not be repeated here. In particular, the needle structure 100c of the embodiment shown in FIG. 9 is a blunt needle, and the front end of the needle body 800 is arc-shaped. The partition 400 is disposed in the needle cavity 102 , and the partition 400 separates the needle cavity 102 into the first chamber 410 and the second chamber 420 . The first chamber 410 and the second chamber 420 are isolated from each other. Moreover, the partition 400 separates the needle port 220 into the injection port 430 and the blood return port 440 . The first chamber 410 is filled with filler and connected to the injection port 430 , while the second chamber 420 is connected to the blood return port 440 and the opening 320 . Since the needle port 220 is located at the side of the front end, the injection port 430 and the blood return port 440 are both opened at the side of the front end of the needle body 800 . It is worth mentioning that there is still a gap between the front end of the partition 400 near the needle port 220 and the injection port 430 , so that the injection of filler and the monitoring of blood return can be performed at the same time. In addition, if the front end of the partition 400 is aligned with the injection port 430, the injection port 430 may be inside the blood vessel and the blood return port 440 is outside the blood vessel when the injector operates the needle structure 100c, but this embodiment can avoid this situation. The situation occurs. Thus, the needle structure 100c has a first chamber 410 and a second chamber 420 which are not connected, the first chamber 410 is filled with a filling, and the second chamber 420 is transparent and the housing 300 is provided with an opening 320 and a second chamber 420. The switch part 330 is used to confirm the status of blood return. When the opening 320 is opened, the blood return status can be confirmed, and when the opening 320 is closed, the injected filler can be prevented from entering the second chamber 420 . The overall structure can prevent the injector from entering the blood vessel when injecting, thereby improving the safety of the operation.
图10A是绘示本发明另一实施例的针头结构100d在确认回血时的侧视图。图10B是绘示图10A的针头结构100d在注射时的侧视图。如图所示，此针头结构100d包含针体200、壳体300、分隔件400a以及导管900。此针体200为尖针。在图10A与图10B的实施方式中，针体200与壳体300均分别与图2中针体200与壳体300相同，不再赘述。特别的是，图10A与图10B实施方式的针头结构100d的分隔件400a设于针头空腔102中且具有第一分隔部402a、第二分隔部404以及回血口440，此分隔件400a将针头空腔102分隔出第一腔室410与第二腔室420。回血口440连通第一腔室410与第二腔室420，且回血口440邻近针口220。回血口440介于第一分隔部402a与第二分隔部404之间，而且回血口440具有口径D3。第一分隔部402a的一端连接针体200的内壁，而另一端则连接壳体壁340的内缘。第二分隔部404则位于针体腔室210且其侧视图呈L形。仔细地说，第二腔室420连接回血口440与壳体300的开孔320，使第二腔室420介于回血口440与开孔320之间。回血口440与针口220相隔第一间距D1。再者，导管900具有注射口910与管壁920，此导管900可位移地穿设于第一腔室410之中且装有填充物。管壁920与第一腔室410的形状相同。当注射者操作针头结构100d时，会实施两个步骤。第一个步骤是为确认回血情况，在此步骤中，注射者将导管900穿入第一腔室410里并让注射口910位移到一特定位置，致使注射口910与针口220之间的第二间距D2大于第一间距D1。此时第二腔室420与针口220连通，可以让注射者通过回血的状况确认是否打到血管，如图10A所示。第二个步骤则为注射填充物，在此步骤中，注射者会先将导管900往针口220的方向再进一步推进一段间隔，使注射口910与针口220之间的第二间距D2小于等于第一间距D1，此时导管900的管壁920封闭回血口440，令第一腔室410与第二腔室420彼此隔离。然后，注射者将导管900内的填充物注射至针口220处，最后抽出针体200而完成注射程序。此种结构可以避免填充物于注射时进入第二腔室420而形成堵塞，能降低清洁的困难度。另外值得一提的是，当注射完成后，导管900可以抽离第一腔室410而丢弃更换，而针体200在清洁杀菌过后可以回收使用，并配合另一装有填充物的导管900继续下一次注射，此种结构与操作不但能降低制造成本，而且操作方便简单又安全。由于填充物属于黏稠状，一般传统注射的针头结构容易造成填充物的堵塞而无法使用，而本发明不但可以让注射者能顺利且安心地完成施打疗程，还可大幅地降低被施打者发生副作用或意外的风险。FIG. 10A is a side view illustrating a needle structure 100d according to another embodiment of the present invention when blood return is confirmed. FIG. 10B is a side view illustrating the needle structure 100d of FIG. 10A during injection. As shown in the figure, the needle structure 100d includes a needle body 200 , a housing 300 , a partition 400a and a catheter 900 . The needle body 200 is a pointed needle. In the embodiment shown in FIG. 10A and FIG. 10B , the needle body 200 and the housing 300 are respectively the same as the needle body 200 and the housing 300 in FIG. 2 , which will not be repeated here. In particular, the partition 400a of the needle structure 100d of the embodiment shown in FIG. 10A and FIG. 10B is disposed in the needle cavity 102 and has a first partition 402a, a second partition 404, and a blood return port 440. The partition 400a separates the needle The cavity 102 separates the first chamber 410 and the second chamber 420 . The blood return port 440 communicates with the first chamber 410 and the second chamber 420 , and the blood return port 440 is adjacent to the needle port 220 . The blood return port 440 is located between the first partition 402 a and the second partition 404 , and the blood return port 440 has a diameter D3. One end of the first partition 402 a is connected to the inner wall of the needle body 200 , and the other end is connected to the inner edge of the casing wall 340 . The second partition 404 is located in the needle chamber 210 and is L-shaped in side view. Specifically, the second chamber 420 is connected to the blood return port 440 and the opening 320 of the casing 300 , so that the second chamber 420 is located between the blood return port 440 and the opening 320 . The blood return port 440 is separated from the needle port 220 by a first distance D1. Furthermore, the catheter 900 has an injection port 910 and a tube wall 920 , and the catheter 900 is displaceably passed through the first chamber 410 and is filled with fillers. The tube wall 920 has the same shape as the first chamber 410 . When the injector manipulates the needle structure 100d, two steps are performed. The first step is to confirm the blood return situation. In this step, the injector passes the catheter 900 into the first chamber 410 and moves the injection port 910 to a specific position, so that the distance between the injection port 910 and the needle port 220 The second distance D2 is greater than the first distance D1. At this time, the second chamber 420 communicates with the needle port 220, allowing the injector to confirm whether the blood vessel has been hit through the status of blood return, as shown in FIG. 10A. The second step is to inject the filler. In this step, the injector will first advance the catheter 900 toward the needle port 220 for a distance, so that the second distance D2 between the injection port 910 and the needle port 220 is less than It is equal to the first distance D1, at this time, the tube wall 920 of the catheter 900 closes the blood return port 440, so that the first chamber 410 and the second chamber 420 are isolated from each other. Then, the injector injects the filling in the catheter 900 to the needle port 220, and finally withdraws the needle body 200 to complete the injection procedure. Such a structure can prevent the filler from entering the second chamber 420 during injection to form a blockage, and can reduce the difficulty of cleaning. It is also worth mentioning that when the injection is completed, the catheter 900 can be withdrawn from the first chamber 410 and discarded for replacement, while the needle body 200 can be recycled after cleaning and sterilization, and can be used in combination with another catheter 900 filled with fillers. For the next injection, this kind of structure and operation can not only reduce the manufacturing cost, but also the operation is convenient, simple and safe. Since the filler is viscous, the needle structure of the traditional injection is likely to cause the filler to be blocked and cannot be used. However, the present invention not only allows the injector to complete the treatment course smoothly and safely, but also greatly reduces the incidence of the injection. RISK OF SIDE EFFECTS OR UNINTENDED.
图11A是绘示本发明另一实施例的针头结构100e在确认回血时的侧视图。图11B是绘示图11A的针头结构100e在注射时的侧视图。如图所示，此针头结构100e包含针体200、壳体300、分隔件400b以及导管900。在图11A与图11B的实施方式中，针体200、壳体300以及导管900均分别与图10A、图10B中针体200、壳体300以及导管900相同，不再赘述。特别的是，图11A与图11B实施方式的针头结构100e的分隔件400b具有第一分隔部402b、第二分隔部404以及回血口440，此分隔件400b将针头空腔102分隔出第一腔室410与第二腔室420。此外，第一分隔部402b较图10A的第一分隔部402a为短，因此图11A、11B的针头结构100e的回血口440的口径D3大于图10A、10B的针头结构100d的回血口440的口径D3。换句话说，第一分隔部402b仅设于壳体300内，而靠近针口220的第二分隔部404则设于针体200内，针体200的针体腔室210并无第一分隔部402b。在这样的结构条件下，针体200可以制作成更细的管体，亦即可制成管径更小的针体200，进而缩小针体200穿刺所造成的伤口大小。另外，当注射者操作针头结构100e时，一样会实施两个步骤。第一个步骤是为确认回血情况，在此步骤中，注射者将导管900穿入针体腔室210里并让注射口910位移到一特定位置，致使注射口910与针口220之间的第二间距D2大于第一间距D1。此时导管900的外壁与针体200的内壁之间会形成一空室422，此空室422属于第二腔室420的一部分，而且空室422与针口220彼此连通，可以让注射者通过回血的状况确认是否打到血管，如图11A所示。第二个步骤则为注射填充物，在此步骤中，注射者会先将导管900往针口220的方向再进一步推进一段间隔，使注射口910与针口220之间的第二间距D2小于等于第一间距D1，此时导管900的管壁920封闭回血口440，令空室422与针口220彼此隔离。然后，注射者将导管900内的填充物注射至针口220处。最后，当填充物注射完毕时，导管900会被抽出针体200以及第一腔室410而完成注射程序。此种结构可以避免填充物于注射时进入空室422而造成堵塞，不但能降低清洁的困难度，而且其结构配合注射操作对于一般的注射者而言既方便简单又安全稳定。FIG. 11A is a side view illustrating a needle structure 100e according to another embodiment of the present invention when blood return is confirmed. FIG. 11B is a side view illustrating the needle structure 100e of FIG. 11A during injection. As shown in the figure, the needle structure 100e includes a needle body 200 , a housing 300 , a partition 400b and a catheter 900 . In the embodiment shown in FIG. 11A and FIG. 11B , the needle body 200 , the housing 300 and the catheter 900 are the same as the needle body 200 , the housing 300 and the catheter 900 in FIG. 10A and FIG. 10B , and will not be repeated here. In particular, the partition 400b of the needle structure 100e in the embodiment shown in FIG. 11A and FIG. 11B has a first partition 402b, a second partition 404, and a blood return port 440, and the partition 400b separates the needle cavity 102 from the first cavity. chamber 410 and a second chamber 420 . In addition, the first partition 402b is shorter than the first partition 402a in FIG. 10A, so the diameter D3 of the blood return port 440 of the needle structure 100e in FIGS. 11A and 11B is larger than the diameter of the blood return port 440 in the needle structure 100d of FIGS. 10A and 10B D3. In other words, the first partition 402b is only provided in the housing 300, and the second partition 404 near the needle port 220 is provided in the needle body 200, and the needle chamber 210 of the needle body 200 does not have the first partition 402b. Under such structural conditions, the needle body 200 can be made into a thinner tube body, that is, the needle body 200 with a smaller diameter can be made, thereby reducing the size of the wound caused by the needle body 200 puncture. In addition, when the injector manipulates the needle structure 100e, two steps are also performed. The first step is to confirm the blood return situation. In this step, the injector passes the catheter 900 into the needle body chamber 210 and moves the injection port 910 to a specific position, so that the first hole between the injection port 910 and the needle port 220 The second distance D2 is greater than the first distance D1. At this time, an empty chamber 422 will be formed between the outer wall of the catheter 900 and the inner wall of the needle body 200. This empty chamber 422 is a part of the second chamber 420, and the empty chamber 422 and the needle port 220 are connected to each other, allowing the injector to return blood Confirm whether the blood vessel has been hit, as shown in Figure 11A. The second step is to inject the filler. In this step, the injector will first advance the catheter 900 toward the needle port 220 for a distance, so that the second distance D2 between the injection port 910 and the needle port 220 is less than It is equal to the first distance D1, at this time, the tube wall 920 of the catheter 900 closes the blood return port 440 to isolate the empty chamber 422 and the needle port 220 from each other. Then, the injector injects the filling in the catheter 900 to the needle port 220 . Finally, when the filler is injected, the catheter 900 will be pulled out of the needle body 200 and the first chamber 410 to complete the injection procedure. This kind of structure can prevent the filler from entering the cavity 422 during injection and cause blockage, not only can reduce the difficulty of cleaning, but also the structure and injection operation are convenient, simple, safe and stable for ordinary injectors.
图12A是绘示本发明再一实施例的针头结构100f插入血管104的示意图。图12B是绘示图12A的针头结构100f在注射时的示意图。如图所示，此针头结构100f包含针体200、壳体300a、导管900、螺纹部930、转动部940以及注射筒950。其中针体200可为钝针或尖针，本实施例为尖针，而且针体200包含针体腔室210、针口220以及分隔件400c，针体腔室210连接针口220，分隔件400c设于针体腔室210的内缘。壳体300a连接针体200，且壳体300a包含壳体腔室310、开孔320以及壳体壁340。开孔320连通壳体腔室310且穿设于壳体壁340上，针体腔室210连通壳体腔室310。再者，导管900具有注射口910与管壁920，导管900可位移地穿设于壳体腔室310与针体腔室210且装有填充物。分隔件400c与针口220相隔第一间距D1，而注射口910与针口220相隔一第二间距D2。本实施例的针头结构100f并无装设开关部，而螺纹部930连接于导管900与转动部940之间。转动部940的一端连接螺纹部930，另一端则连接注射筒950。当注射者旋转转动部940时，导管900、螺纹部930、转动部940及注射筒950均同步旋转，致使注射口910与针口220之间的第二间距D2得以调整。另外，在图12A的实施例中，第一间距D1小于第二间距D2，分隔件400c与管壁920分离而形成回血口440。由于针体200的针口220插入血管104当中，因此血液会通过针体腔室210流进壳体腔室310，而注射者可通过透明或半透明的壳体300a来观察回血的状况，并得知针口220已位于血管104内。此时注射者将停止施打填充物，并改变施打的位置，亦即改变针口220的位置，以确保填充物不会注入血管104内而引起堵塞。而在图12B的实施例中，针体200的针口220插入非血管组织106当中，注射者旋转转动部940而使第二间距D2缩小。非血管组织106为没有血管104的组织。当第一间距D1大于等于第二间距D2时，管壁920连接分隔件400c，借以令回血口440封闭，这时注射者可施打填充物至非血管组织106中，大幅地增加了手术的安全性，因此对于注射者与患者而言，可以说是医患双赢。FIG. 12A is a schematic diagram illustrating a needle structure 100 f inserted into a blood vessel 104 according to another embodiment of the present invention. FIG. 12B is a schematic diagram illustrating the needle structure 100f of FIG. 12A during injection. As shown in the figure, the needle structure 100f includes a needle body 200 , a housing 300a , a catheter 900 , a threaded part 930 , a rotating part 940 and a syringe 950 . Wherein the needle body 200 can be a blunt needle or a sharp needle, and this embodiment is a sharp needle, and the needle body 200 includes a needle body chamber 210, a needle port 220 and a partition 400c, the needle body chamber 210 is connected to the needle port 220, and the partition 400c is set on the inner edge of the needle chamber 210. The housing 300 a is connected to the needle body 200 , and the housing 300 a includes a housing cavity 310 , an opening 320 and a housing wall 340 . The opening 320 communicates with the housing chamber 310 and is pierced on the housing wall 340 , and the needle body chamber 210 communicates with the housing chamber 310 . Furthermore, the catheter 900 has an injection port 910 and a tube wall 920 , and the catheter 900 is displaceably passed through the housing chamber 310 and the needle chamber 210 and filled with fillers. The partition 400c is separated from the needle port 220 by a first distance D1, and the injection port 910 is separated from the needle port 220 by a second distance D2. The needle structure 100 f of this embodiment is not equipped with a switch part, and the threaded part 930 is connected between the catheter 900 and the rotating part 940 . One end of the rotating part 940 is connected to the threaded part 930 , and the other end is connected to the syringe 950 . When the injector rotates the rotating part 940 , the catheter 900 , the threaded part 930 , the rotating part 940 and the syringe 950 all rotate synchronously, so that the second distance D2 between the injection port 910 and the needle port 220 is adjusted. In addition, in the embodiment shown in FIG. 12A , the first distance D1 is smaller than the second distance D2 , and the partition 400 c is separated from the tube wall 920 to form the blood return port 440 . Since the needle port 220 of the needle body 200 is inserted into the blood vessel 104, the blood will flow into the housing chamber 310 through the needle body chamber 210, and the injector can observe the status of blood return through the transparent or translucent housing 300a, and know Needle port 220 is already positioned within blood vessel 104 . At this time, the injector will stop injecting the filling, and change the injection position, that is, change the position of the needle port 220, so as to ensure that the filling will not be injected into the blood vessel 104 and cause blockage. In the embodiment of FIG. 12B , the needle port 220 of the needle body 200 is inserted into the non-vascular tissue 106 , and the injector rotates the rotating part 940 to reduce the second distance D2 . Nonvascular tissue 106 is tissue without blood vessels 104 . When the first distance D1 is greater than or equal to the second distance D2, the tube wall 920 is connected to the partition 400c, so as to close the blood return port 440. At this time, the injector can inject the filler into the non-vascular tissue 106, which greatly increases the operation time. Safety, so for injectors and patients, it can be said to be a win-win situation for doctors and patients.
请一并参阅图13A、图13B，图13A是绘示本发明另一实施例的针头结构100g的外针部600的剖视图。图13B是绘示图13A的针头结构100g在注射时的侧视图。如图所示，此针头结构100g用以同时注射填充物并监测回血情况，且包含内针部500与外针部600。Please refer to FIG. 13A and FIG. 13B together. FIG. 13A is a cross-sectional view illustrating the outer needle portion 600 of the needle structure 100g according to another embodiment of the present invention. FIG. 13B is a side view illustrating the needle structure 100g of FIG. 13A during injection. As shown in the figure, the needle structure 100g is used to simultaneously inject the filler and monitor the blood return, and includes an inner needle part 500 and an outer needle part 600 .
内针部500包含第一针体510与第一壳体520。第一针体510包含针体腔室512与针口514，针体腔室512连接针口514。而第一壳体520则连接第一针体510，且第一壳体520包含壳体腔室522。壳体腔室522连通针体腔室512而形成第一腔室530，第一腔室530装有填充物且连通针口514。另外，外针部600环设于内针部500的外侧，且外针部600包含第二针体610与第二壳体620。其中第二针体610环设于第一针体510的外侧，且回血口612开设于第二针体610上。第二壳体620连接第二针体610且环设于第一壳体520的外侧。此外，第二壳体620可包含近端部620a与远端部620b。近端部620a具有二端，其中一端连接第二针体610，另一端则连接远端部620b。远端部620b的前端嵌接近端部620a，且远端部620b设有开孔622。内针部500可位移地定位于近端部620a与远端部620b。再者，当内针部500插入外针部600时，外针部600与内针部500之间形成第二腔室630，第二腔室630与第一腔室530彼此隔离。本实施例的针头结构100g并无装设开关部于第二壳体620，第二壳体620是由硬质塑胶所制成，其可呈透明或半透明状。开孔622通过近端部620a与第二针体610连通回血口612，其可让注射者快速地分辨是否有血液进入第二腔室630之中，进而推知外针部600的第二针体610是否插到血管。另外，当第一针体510插入第二针体610时，注射者可将内针部500内的填充物注射至针口514处，如图13B所示。借此，本发明的针头结构100g通过内针部500与外针部600所形成的特殊结构来确认回血的状况，而且能让注射者在施打时避免填充物打入血管而造成血管栓塞，大幅地提高手术的安全性。The inner needle part 500 includes a first needle body 510 and a first housing 520 . The first needle 510 includes a needle chamber 512 and a needle port 514 , and the needle chamber 512 is connected to the needle port 514 . The first housing 520 is connected to the first needle body 510 , and the first housing 520 includes a housing cavity 522 . The housing chamber 522 communicates with the needle body chamber 512 to form a first chamber 530 , and the first chamber 530 is filled with a filler and communicates with the needle port 514 . In addition, the outer needle part 600 is disposed around the outer side of the inner needle part 500 , and the outer needle part 600 includes the second needle body 610 and the second housing 620 . Wherein the second needle body 610 is arranged around the outside of the first needle body 510 , and the blood return port 612 is opened on the second needle body 610 . The second housing 620 is connected to the second needle body 610 and is disposed around the outer side of the first housing 520 . In addition, the second housing 620 may include a proximal portion 620a and a distal portion 620b. The proximal portion 620a has two ends, one end is connected to the second needle body 610, and the other end is connected to the distal portion 620b. A front end of the distal portion 620b is inserted into the proximal portion 620a, and the distal portion 620b is provided with an opening 622 . The inner needle portion 500 is displaceably positioned at the proximal portion 620a and the distal portion 620b. Moreover, when the inner needle part 500 is inserted into the outer needle part 600, a second chamber 630 is formed between the outer needle part 600 and the inner needle part 500, and the second chamber 630 is isolated from the first chamber 530. The needle structure 100g of this embodiment does not have a switch part installed on the second casing 620, and the second casing 620 is made of hard plastic, which can be transparent or translucent. The opening 622 communicates with the second needle body 610 through the proximal part 620a to the blood return port 612, which allows the injector to quickly distinguish whether there is blood entering the second chamber 630, and then infer the second needle body of the outer needle part 600 Whether the 610 is inserted into a blood vessel. In addition, when the first needle body 510 is inserted into the second needle body 610, the injector can inject the filling in the inner needle part 500 to the needle port 514, as shown in FIG. 13B . In this way, the needle structure 100g of the present invention can confirm the status of blood return through the special structure formed by the inner needle part 500 and the outer needle part 600, and can prevent the injector from injecting the filler into the blood vessel and causing blood vessel embolism, Greatly improve the safety of surgery.
图13C是绘示本发明又一实施例的针头结构100h的侧视图。此针头结构100h包含内针部500与外针部600。外针部600包含第二针体610、第二壳体620、连接座640以及注射组件1000。第二壳体620设有开孔622。其中内针部500、第二针体610及第二壳体620与图13A、图13B中针头结构100g的内针部500、第二针体610及第二壳体620的结构相同，不再赘述。特别的是，外针部600还包含连接座640以及注射组件1000，连接座640连通开孔622且连接第二壳体620。连接座640与第二壳体620的连接方式为可拆卸地连接或一体连接，而本实施例为一体连接。连接座640是由硬质塑胶所制成，其可连接各式各样的注射组件1000，用以排气、排血或是造成负压。此外，注射组件1000连接连接座640，亦即注射组件1000通过连接座640连通第二壳体620。注射组件1000包含注射壳体1010与注射杆1020。注射壳体1010可拆卸地连接连接座640。注射杆1020则设于注射壳体1010且可位移地定位于注射壳体1010内。当注射杆1020受注射者推进时，注射组件1000会提供冲力以清洁第二针体610与第二壳体620的内部。换句话说，如果有回血的状况发生时，连接座640结合注射组件1000的结构可以把残留血液排掉而让针头结构100h继续使用，进而降低更换针头的成本。Fig. 13C is a side view illustrating a needle structure 100h according to another embodiment of the present invention. The needle structure 100h includes an inner needle part 500 and an outer needle part 600 . The outer needle part 600 includes a second needle body 610 , a second housing 620 , a connecting seat 640 and an injection assembly 1000 . The second housing 620 defines an opening 622 . Wherein the structure of the inner needle part 500, the second needle body 610 and the second housing 620 is the same as that of the inner needle part 500, the second needle body 610 and the second housing 620 of the needle structure 100g in Fig. 13A and Fig. 13B. repeat. In particular, the outer needle part 600 further includes a connection seat 640 and the injection assembly 1000 , the connection seat 640 communicates with the opening 622 and connects with the second housing 620 . The connection mode of the connection seat 640 and the second housing 620 is a detachable connection or an integral connection, but in this embodiment, the integral connection. The connecting seat 640 is made of hard plastic, and it can be connected with various injection components 1000 for exhausting, bleeding or creating negative pressure. In addition, the injection assembly 1000 is connected to the connection seat 640 , that is, the injection assembly 1000 communicates with the second housing 620 through the connection seat 640 . The injection assembly 1000 includes an injection housing 1010 and an injection rod 1020 . The injection housing 1010 is detachably connected to the connecting seat 640 . The injection rod 1020 is disposed on the injection housing 1010 and displaceably positioned in the injection housing 1010 . When the injection rod 1020 is pushed by the injector, the injection assembly 1000 will provide momentum to clean the inside of the second needle body 610 and the second casing 620 . In other words, if there is a return of blood, the connection base 640 combined with the structure of the injection assembly 1000 can drain the residual blood and allow the needle structure 100h to continue to be used, thereby reducing the cost of needle replacement.
由上述实施方式可知，本发明具有下列优点：其一，本发明的针头结构能够让注射者在针尖进入到皮肤之后，利用血管内天然具有压力的原理，无需经过回抽即可得知针尖是否在血管内。其二，本发明的针头结构具有不连通的第一腔室与第二腔室，第一腔室装有填充物，第二腔室为透明且具有开孔，用以确认回血的状况。当开孔打开时可确认回血状况，若关闭时可避免注射填充物进入第二腔室，可使注射者在施打时避免填充物打入血管而造成血管栓塞，进而提高手术的安全性。其三，特殊的针头结构使注射者能方便地操作，让注射者更能顺利地完成施打疗程。其四，特殊的双腔室结构搭配分隔件的设置可以达到同时注射填充物以及监测回血情况的效果。其五，本发明既可让注射者能顺利且安心地完成施打疗程，也可降低被施打者发生副作用或意外的风险。其六，利用连接座结合注射组件的结构可以把残留血液排掉而让针头结构继续使用，进而降低更换针头的成本。It can be seen from the above embodiments that the present invention has the following advantages: First, the needle structure of the present invention allows the injector to know whether the needle tip is in the skin without drawing back by using the principle of natural pressure in the blood vessel. in blood vessels. Second, the needle structure of the present invention has a disconnected first chamber and a second chamber, the first chamber is filled with fillers, and the second chamber is transparent and has an opening for confirming the status of blood return. When the opening is open, the blood return status can be confirmed. If it is closed, the injected filling can be prevented from entering the second chamber, which can prevent the injector from entering the blood vessel and causing blood vessel embolism when injecting, thereby improving the safety of the operation. Third, the special needle structure enables the injector to operate it conveniently, allowing the injector to complete the treatment course more smoothly. Fourth, the special double-chamber structure and the setting of the separator can achieve the effect of simultaneous injection of fillers and monitoring of blood return. Fifth, the present invention not only allows the injector to complete the course of injection treatment smoothly and safely, but also reduces the risk of side effects or accidents of the injected person. Sixth, the use of the connecting seat combined with the structure of the injection assembly can drain the residual blood and allow the needle structure to continue to be used, thereby reducing the cost of replacing the needle.
虽然本发明已以实施方式公开如上，然其并非用以限定本发明，任何本领域一般技术人员，在不脱离本发明的精神和范围内，当可作各种的更动与润饰，因此本发明的保护范围当视权利要求所界定的为准。Although the present invention has been disclosed above in terms of implementation, it is not intended to limit the present invention. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention should be defined by the claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279515 | 2016-04-29 | ||
| CN2016102795159 | 2016-04-29 | ||
| CN201610467211 | 2016-06-24 | ||
| CN2016104672115 | 2016-06-24 |
| Publication Number | Publication Date |
|---|---|
| CN107335114Atrue CN107335114A (en) | 2017-11-10 |
| CN107335114B CN107335114B (en) | 2020-06-05 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611019932.6AExpired - Fee RelatedCN107335114B (en) | 2016-04-29 | 2016-11-18 | Needle head structure |
| Country | Link |
|---|---|
| CN (1) | CN107335114B (en) |
| WO (1) | WO2017185729A1 (en) |
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| CN115845185A (en)* | 2022-12-28 | 2023-03-28 | 珠海丽笙医疗科技有限公司 | Eccentric valve switching structure of injection pipeline |
| CN116549870A (en)* | 2023-04-14 | 2023-08-08 | 深圳拉尔文生物工程技术有限公司 | A double-chamber particle implant needle |
| CN117045904A (en)* | 2023-08-30 | 2023-11-14 | 成都丽妍仕医疗器械有限公司 | Embolism prevention syringe needle and syringe |
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| CN203634573U (en)* | 2012-11-30 | 2014-06-11 | 尼普洛株式会社 | Remaining needle component |
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| US8277411B2 (en)* | 2002-01-31 | 2012-10-02 | Boston Scientific Scimed, Inc. | Needle device |
| ES2686114T3 (en)* | 2011-12-20 | 2018-10-16 | Angioclinic Ag | Hyaluronic acid and its use for the treatment of venous insufficiency and varicose veins |
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| CN205515814U (en)* | 2016-03-23 | 2016-08-31 | 西北妇女儿童医院 | Double -barrelled binary channels syringe and syringe needle |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4961729A (en)* | 1988-12-13 | 1990-10-09 | Vaillancourt Vincent L | Catheter insertion assembly |
| WO2000013728A1 (en)* | 1998-09-03 | 2000-03-16 | Luther Ronald B | Intravenous infusion needle with soft body |
| CN2516171Y (en)* | 2002-03-18 | 2002-10-16 | 蒋忠 | Double-trocar deep vein puncture needle |
| WO2006026210A2 (en)* | 2004-08-25 | 2006-03-09 | Boston Scientific Limited | Devices for delivering agents to tissue region while preventing leakage |
| CN103007383A (en)* | 2006-11-03 | 2013-04-03 | B.布劳恩梅尔松根股份公司 | Catheter assembly and components thereof |
| WO2010060067A1 (en)* | 2008-11-24 | 2010-05-27 | Dartmouth-Hitchcock Clinic | Intravascular needle and catheter assembly |
| CN201356858Y (en)* | 2009-03-09 | 2009-12-09 | 石学银 | Novel medical use vessel indwelling needle |
| US8475403B2 (en)* | 2010-08-03 | 2013-07-02 | Cook Medical Technologies Llc | Aspirating and injecting device with biased closed distal opening |
| WO2014014971A1 (en)* | 2012-07-17 | 2014-01-23 | Cook Medical Technologies Llc | Multi-lumen biologic-delivering device |
| CN203634573U (en)* | 2012-11-30 | 2014-06-11 | 尼普洛株式会社 | Remaining needle component |
| CN204932477U (en)* | 2015-08-11 | 2016-01-06 | 童庭辉 | The blunt pin of a kind of double-cavity diploporous type |
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| CN108837238A (en)* | 2018-07-13 | 2018-11-20 | 江苏省人民医院（南京医科大学第附属医院） | Hyaluronic acid injection needle |
| CN108837238B (en)* | 2018-07-13 | 2023-09-01 | 江苏省人民医院（南京医科大学第一附属医院） | Hyaluronic acid injection needle |
| CN109745598A (en)* | 2018-12-29 | 2019-05-14 | 温州市人民医院 | A kind of blood vessel alarm injection needle |
| CN110339431A (en)* | 2019-05-10 | 2019-10-18 | 刘金花 | A kind of sub-chamber injector for medical cosmetic injection |
| CN114177428A (en)* | 2021-12-31 | 2022-03-15 | 段宜人 | A needle and syringe |
| CN115845185A (en)* | 2022-12-28 | 2023-03-28 | 珠海丽笙医疗科技有限公司 | Eccentric valve switching structure of injection pipeline |
| CN116549870A (en)* | 2023-04-14 | 2023-08-08 | 深圳拉尔文生物工程技术有限公司 | A double-chamber particle implant needle |
| CN117045904A (en)* | 2023-08-30 | 2023-11-14 | 成都丽妍仕医疗器械有限公司 | Embolism prevention syringe needle and syringe |
| Publication number | Publication date |
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| CN107335114B (en) | 2020-06-05 |
| WO2017185729A1 (en) | 2017-11-02 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20200605 Termination date:20211118 | |
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