技术领域Technical Field
本实用新型涉及医疗器械的技术领域，更具体地，涉及一种内镜粘膜剥离用的手术器械。The utility model relates to the technical field of medical instruments, and more specifically, to a surgical instrument for endoscopic mucosal stripping.
背景技术Background Art
内镜粘膜下剥离术(简称ESD)，顾名思义，是在内镜下进行的一种手术，通过用高频电刀将病变所在粘膜剥离而达到治疗目的。ESD技术是目前对消化道病变进行治疗的一种成熟手术，临床上常用的手术刀有IT刀、Duel刀、钩刀、针刀、海博刀等，其中应用较为广泛的是前三种。Endoscopic submucosal dissection (ESD) is a surgery performed under endoscopy. It achieves the purpose of treatment by using a high-frequency electric knife to remove the mucosa where the lesion is located. ESD technology is a mature surgery for the treatment of gastrointestinal lesions. The commonly used surgical knives in clinical practice include IT knife, Duel knife, hook knife, needle knife, Haibo knife, etc. Among them, the first three are more widely used.
IT刀因其顶端是绝缘头陶瓷，相对安全性较高，但是其缺点是只能进行侧面或者回拉式切割，对于空间和角度的要求相当高，需要经验十分丰富的主刀医师来操作；Duel刀主要是推进式的切割方式，其安全性较IT刀偏低，并且在肿物大部分切除、剩下部分组织牵连的状态下，使用Duel刀切割容易滑脱，难以固定肿物；钩刀可采用推进式或者回拉式切割，但是其前端没有绝缘装置，使用不当时很容易造成穿孔，尤其是部分组织粘连明显时，通过钩刀进行电切割会更加容易造成穿孔，导致医疗事故。The IT knife is relatively safe because of its insulating ceramic tip, but its disadvantage is that it can only perform side or pull-back cutting, and has very high requirements for space and angle, and requires a very experienced surgeon to operate; the Duel knife mainly uses a push-type cutting method, and its safety is lower than that of the IT knife. In addition, when most of the tumor has been removed and the remaining tissue is involved, the Duel knife is prone to slippage and it is difficult to fix the tumor; the hook knife can be used for push-type or pull-back cutting, but it has no insulating device at the front end, and it is easy to cause perforation when used improperly, especially when some tissues are obviously adhered, electric cutting with the hook knife will be more likely to cause perforation, leading to medical accidents.
为了应对部分切除的肿物无法固定的情况，临床上常用的方式是，在原电刀的基础上再额外使用一个内镜用取出钳，用以辅助固定部分切除的肿物。这种内镜用取出钳伸入人体的一端端部设有切除剪头部，其由两个钳头和钳头座组成，两个钳头互相匹配且钳头带钩，交叉固定在钳头座上，钳头带钩可以有效抓住部分切除下来的肿物，使其不容易滑脱。这种取出钳还可以在钳头内部设置输入插芯，可电连接，通电后可以使用高压电击切除需要手术切除的部位。但是，在临床中，这种内镜用取出钳还是存在一些不便性：首先，这种内镜用取出钳无法单独使用，其更多的还是起到辅助固定的效果，大多数时候还是使用上述的IT刀、Duel刀来进行电切割；其次，在使用过程中，需要在患者体内置入两种手术刀，或者交替使用两种手术刀，增加患者的不适感和手术时长。In order to deal with the situation that the partially removed tumor cannot be fixed, the common clinical method is to use an additional endoscopic extraction forceps on the basis of the original electric knife to assist in fixing the partially removed tumor. The end of the endoscopic extraction forceps that extends into the human body is provided with a cutting shear head, which is composed of two clamp heads and a clamp head seat. The two clamp heads match each other and the clamp heads have hooks, which are cross-fixed on the clamp head seat. The clamp head hooks can effectively grasp the partially removed tumor, making it not easy to slip off. This extraction forceps can also be provided with an input plug inside the clamp head, which can be electrically connected. After power is turned on, high-voltage electric shock can be used to remove the part that needs surgical resection. However, in clinical practice, this endoscopic extraction forceps still has some inconveniences: first, this endoscopic extraction forceps cannot be used alone, and it is more of an auxiliary fixation effect. Most of the time, the above-mentioned IT knife and Duel knife are still used for electrical cutting; secondly, during use, two scalpels need to be placed in the patient's body, or two scalpels need to be used alternately, which increases the patient's discomfort and the duration of the operation.
实用新型内容Utility Model Content
长期的临床手术经验使发明人观察到粘膜下的组织多呈柱形，针对这一特性且结合现有的医疗手术器械存在的问题，发明人设计了本实用新型，其目的在于克服现有内镜用取出钳无法单独使用、使用不便、会增加患者的不适感的问题，提供一种内镜粘膜剥离用的手术器械，结合了直刀、剪刀、钩刀(镰刀)的特性，有利于克服临床上不利的操作困境，能够提高手术的安全性以及效率，减少患者的不适感。Long-term clinical surgical experience has enabled the inventor to observe that the tissues under the mucosa are mostly columnar. In view of this characteristic and in combination with the problems existing in existing medical surgical instruments, the inventor has designed the utility model, the purpose of which is to overcome the problems that the existing endoscopic removal forceps cannot be used alone, are inconvenient to use, and increase the discomfort of patients, and to provide a surgical instrument for endoscopic mucosal stripping, which combines the characteristics of a straight knife, scissors, and a hook knife (sickle), is conducive to overcoming clinically unfavorable operational difficulties, can improve the safety and efficiency of the operation, and reduce the discomfort of patients.
本实用新型采用的技术方案是：The technical solution adopted by the utility model is:
一种内镜粘膜剥离用的手术器械，包括控制部和导管，控制部连接导管一端，导管另一端连接刀头部，导管内包裹有连接控制部和刀头部的牵引钢丝和导丝，刀头部呈剪刀状结构，刀头部的其中一个刀头的自由端设有倒钩，刀头部闭合后形成整体杆状结构。A surgical instrument for endoscopic mucosal stripping includes a control part and a catheter, wherein the control part is connected to one end of the catheter, and the other end of the catheter is connected to a blade head. A traction wire and a guide wire connecting the control part and the blade head are wrapped in the catheter. The blade head has a scissor-like structure, and a barb is provided at the free end of one of the blade heads of the blade head. When the blade head is closed, an overall rod-like structure is formed.
本实用新型的工作原理如下：主刀医师手持控制部，缓慢将导管以及刀头部由患者的口腔或者肛门伸入患者的消化道内，对病变部位进行切除手术。导管内包裹有牵引钢丝和导丝，其中，牵引钢丝的两端分别连接控制部以及刀头部，通过操作控制部，进而控制牵引钢丝的相对移动，从而实现对于刀头部的控制。此外，所述导丝的两端也分别连接控制部以及刀头部，向刀头部输送高频电流，通过高频高压电流与肌体接触时对组织进行加热，实现对肌体组织的分离和凝固，从而起到切割和止血的目的。本实用新型所述的刀头部的整体结构与常见的剪刀相似，通过控制部以及牵引钢丝的控制，可以进而控制刀头部的两个刀头的开合，实现剪切效果，刀头部可以像剪刀一样对病变部位进行物理切割，避免使用电切割对肌体组织造成额外的损害，甚至造成穿孔。刀头部的其中一个刀头的自由端设有倒钩，所述倒钩不仅可以用于将部分切割下来的组织钩住，方便继续切割，还可以像镰刀似的对病变部位进行钩切。此外，当刀头部闭合后，其形成整体杆状结构，此时在通电状态下，刀头部可视为电刀(即Duel刀)使用。刀头部闭合后，其内侧的刀刃会被另一刀体覆盖住，这样在将刀头部伸出或者伸入患者体内时，可以有效避免对患者的肌体组织造成划伤。The working principle of the utility model is as follows: the surgeon holds the control unit and slowly extends the catheter and the blade head from the patient's mouth or anus into the patient's digestive tract to perform a resection operation on the lesion. The catheter is wrapped with a traction wire and a guide wire, wherein the two ends of the traction wire are respectively connected to the control unit and the blade head. By operating the control unit, the relative movement of the traction wire is controlled to achieve control of the blade head. In addition, the two ends of the guide wire are also respectively connected to the control unit and the blade head, and high-frequency current is transmitted to the blade head. When the high-frequency and high-voltage current contacts the body, the tissue is heated to achieve separation and coagulation of the body tissue, thereby achieving the purpose of cutting and hemostasis. The overall structure of the blade head described in the utility model is similar to common scissors. Through the control of the control unit and the traction wire, the opening and closing of the two blade heads of the blade head can be controlled to achieve a shearing effect. The blade head can physically cut the lesion like scissors, avoiding the use of electric cutting to cause additional damage to the body tissue, or even cause perforation. The free end of one of the blade heads is provided with a barb, which can not only be used to hook the partially cut tissue to facilitate continued cutting, but also to hook and cut the diseased part like a sickle. In addition, when the blade head is closed, it forms an overall rod-shaped structure. At this time, when the power is on, the blade head can be used as an electric knife (i.e., Duel knife). After the blade head is closed, the inner blade will be covered by another blade body, so that when the blade head is extended out or inserted into the patient's body, it can effectively avoid scratching the patient's body tissue.
进一步地，刀头部与导丝电连接，为了克服现有的钩刀的前端没有绝缘装置的缺陷，刀头部的两个刀头的自由端设有绝缘的陶瓷部，在手术过程中可以避免造成穿孔。Furthermore, the blade head is electrically connected to the guide wire. In order to overcome the defect that the front end of the existing hook knife has no insulating device, the free ends of the two blade heads of the blade head are provided with insulating ceramic parts, which can avoid perforation during the operation.
进一步地，刀头部的外侧与陶瓷部均为钝性结构，在刀头部闭合时，刀头部的外边缘都是钝性结构，在患者体内移动时能够避免对患者体内的肌体组织造成划伤。Furthermore, the outer side of the blade head and the ceramic part are both blunt structures. When the blade head is closed, the outer edge of the blade head is also a blunt structure, which can avoid scratching the body tissue in the patient's body when moving in the patient's body.
进一步地，刀头部由纯钛、或钛合金、或不锈钢或碳钢中任意一种材料制成。手术器械，尤其是进入人体内的手术刀的材质通常具有很高要求，不仅需要耐高温、耐腐蚀，还必须具有较高的生物相容性。同时，刀头部的表面还进行阳极氧化处理，能够改变金属的表面特性，使得手术器械不反射。当主刀医师在内镜灯下工作时，手术器械的表面防眩很重要。Furthermore, the blade head is made of any one of pure titanium, titanium alloy, stainless steel or carbon steel. Surgical instruments, especially surgical knives that enter the human body, usually have very high requirements for their materials. They not only need to be resistant to high temperatures and corrosion, but also must have high biocompatibility. At the same time, the surface of the blade head is also anodized, which can change the surface properties of the metal so that the surgical instrument is non-reflective. When the surgeon works under the endoscopic light, it is important for the surface of the surgical instrument to be anti-glare.
进一步地，刀头部包括第一刀头、第二刀头以及刀座，刀座与导管连接，刀座上设有传动杆，传动杆的两端分别与第二刀头和牵引钢丝、导丝连接。通过控制部拉动牵引钢丝，牵引钢丝带动传动杆，传动杆控制第二刀头绕其铰接部位转动，从而实现刀头部的开合。Furthermore, the blade head includes a first blade head, a second blade head and a blade holder, the blade holder is connected to the catheter, a transmission rod is provided on the blade holder, and two ends of the transmission rod are respectively connected to the second blade head and the traction wire and the guide wire. The traction wire is pulled by the control unit, and the traction wire drives the transmission rod, and the transmission rod controls the second blade head to rotate around its hinged part, thereby realizing the opening and closing of the blade head.
进一步地，为了手术过程的无菌要求，第一刀头和第二刀头均与刀座可拆卸连接，具体的，第一刀头的根部与刀座承插连接，第二刀头与传动杆卡扣连接。当然，第一、第二刀头与刀座也还可以使用其他连接方式，如螺纹连接等，在此不进行一一赘述。Furthermore, in order to meet the aseptic requirements of the surgical process, the first blade head and the second blade head are both detachably connected to the blade holder. Specifically, the root of the first blade head is connected to the blade holder in a socket connection, and the second blade head is connected to the transmission rod in a buckle connection. Of course, the first and second blade heads and the blade holder can also be connected in other ways, such as threaded connection, which will not be described in detail here.
进一步地，控制部包括固定手柄和活动手柄，固定手柄上设有用于承插活动手柄的放置孔，活动手柄在放置孔内前后限位移动；固定手柄与导管连接，活动手柄与牵引钢丝连接。Furthermore, the control part includes a fixed handle and a movable handle. The fixed handle is provided with a placement hole for inserting the movable handle, and the movable handle moves forward and backward within the placement hole. The fixed handle is connected to the catheter, and the movable handle is connected to the traction wire.
进一步地，固定手柄上设有电源接口，导丝与电源接口电连接，通电后，可使用高频高压电击切除需要手术切除的部位。Furthermore, a power interface is provided on the fixed handle, and the guide wire is electrically connected to the power interface. After power is turned on, high-frequency and high-voltage electric shock can be used to remove the part that needs surgical removal.
进一步地，导管外侧包覆绝缘材料，避免导丝通电后伤害人体内部其他正常组织。Furthermore, the outer side of the catheter is coated with insulating material to prevent the guide wire from damaging other normal tissues inside the human body after being energized.
进一步地，固定手柄两侧设有垂直于其长度方向的握持柄，握持柄远离活动手柄一侧设有弧形凹陷，活动手柄的自由端设有套环。Furthermore, gripping handles perpendicular to the length direction of the fixed handle are provided on both sides, an arc-shaped depression is provided on the side of the gripping handle away from the movable handle, and a ring is provided at the free end of the movable handle.
与现有技术相比，本实用新型的有益效果是：Compared with the prior art, the beneficial effects of the utility model are:
1、本实用新型通过可开合的刀头，将内镜剥离手术中常用的直刀、剪刀、钩刀的优点进行整合，在刀头闭合时可当做直型电刀(针刀)使用，对于组织粘连明显时又可以作为剪刀进行物理剪切，从而避免造成穿孔；1. The utility model integrates the advantages of straight knives, scissors and hook knives commonly used in endoscopic dissection surgery through an openable and closable knife head. When the knife head is closed, it can be used as a straight electric knife (needle knife). When the tissue adhesion is obvious, it can be used as a scissors for physical shearing to avoid perforation.
2、本实用新型刀头顶部设置倒钩，可将游离度和活动度较大的薄膜状组织结构牵拉和固定，再用可活动的刀刃剪切，使手术操作更准确，也可将薄膜状组织结构向器械后方和其它方向适度牵拉，使之与重要的血管和神经组织结构分离，暴露出安全的手术空间，再进行剪切操作更加安全；2. The utility model provides a barb on the top of the blade head, which can pull and fix the thin film tissue structure with large degree of freedom and mobility, and then cut it with the movable blade, making the surgical operation more accurate. The thin film tissue structure can also be appropriately pulled to the rear of the instrument and other directions to separate it from important blood vessels and nerve tissue structures, exposing a safe surgical space, and then the cutting operation is safer;
3、闭合时，刀头部整体为钝性结构，在内镜的二维平面图像中操作更为安全，因深度判断困难，在器械前进过程中即使轻微接触到重要组织结构，也不会造成严重损伤。3. When closed, the blade head is a blunt structure as a whole, and it is safer to operate in the two-dimensional plane image of the endoscope. Because it is difficult to judge the depth, even if the instrument slightly touches important tissue structures during the advancement of the instrument, it will not cause serious damage.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本实用新型的整体结构示意图；Figure 1 is a schematic diagram of the overall structure of the utility model;
图2为本实用新型的刀头部的打开状态示意图；FIG2 is a schematic diagram of the cutter head of the utility model in an open state;
图3为本实用新型的刀头部的闭合状态示意图。FIG. 3 is a schematic diagram of the closed state of the cutter head of the utility model.
附图中：In the attached figure:
1-固定手柄；2-活动手柄；3-导管；4-牵引钢丝；5-导丝；6-第一刀头；7-第二刀头；8-倒钩；9-刀座；91-传动杆；10-电源接口；11-握持柄；12-弧形凹陷。1-fixed handle; 2-movable handle; 3-catheter; 4-traction wire; 5-guide wire; 6-first blade head; 7-second blade head; 8-barb; 9-blade holder; 91-transmission rod; 10-power interface; 11-gripping handle; 12-arc-shaped depression.
具体实施方式DETAILED DESCRIPTION
下面结合具体实施方式对本实用新型作进一步的说明。其中，附图仅用于示例性说明，不能理解为对本专利的限制；为了更好说明本实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对于本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary description and cannot be understood as limiting the present invention. In order to better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.
本实用新型实施例的附图中相同或相似的标号对应相同或相似的部件；在本实用新型的描述中，需要理解的是，若有术语“前”、“后”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此附图中描述位置关系的用语仅用于示例性说明，不能理解为对本专利的限制，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。另外，在本实用新型中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。The same or similar reference numerals in the drawings of the embodiments of the present utility model correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "front", "rear", "left", "right" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for exemplary explanations and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. In addition, in the present utility model, the descriptions involving "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features.
实施例一：Embodiment 1:
参阅图1或者图2，本实施例提供一种内镜粘膜剥离用的手术器械，包括控制部、刀头部和导管3，导管3的两端分别连接控制部和刀头部，导管3内部包裹有牵引钢丝4和导丝5，所述牵引钢丝4和导丝5也同样地分别与控制部和刀头部连接。主刀医师手持控制部，缓慢地将导管3以及刀头部由患者的口腔或者肛门伸入患者的消化道内，通过控制部带动牵引钢丝4，从而实现对于刀头部的控制，对病变部位进行切除手术；通过导丝5向刀头部输送高频电流，通过高频高压电流与肌体组织接触时对组织进行加热，实现对肌体组织的分离和凝固，从而起到切割和止血的作用。Referring to FIG. 1 or FIG. 2 , this embodiment provides a surgical instrument for endoscopic mucosal stripping, including a control unit, a blade head, and a catheter 3, wherein the two ends of the catheter 3 are respectively connected to the control unit and the blade head, and a traction wire 4 and a guide wire 5 are wrapped inside the catheter 3, and the traction wire 4 and the guide wire 5 are also respectively connected to the control unit and the blade head. The surgeon holds the control unit and slowly extends the catheter 3 and the blade head from the patient's mouth or anus into the patient's digestive tract, and drives the traction wire 4 through the control unit to control the blade head and perform a resection operation on the lesion; transmits high-frequency current to the blade head through the guide wire 5, and heats the tissue when the high-frequency high-voltage current contacts the body tissue, thereby separating and coagulating the body tissue, thereby achieving the effect of cutting and stopping bleeding.
本实施例中，所述刀头部呈剪刀状结构，通过控制部以及牵引钢丝4的控制，进而控制刀头部的开合，参阅图2，刀头部能够像剪刀一样对病变部位进行物理剪切，从而避免使用电切割容易对肌体组织造成额外的损害，甚至造成穿孔。In this embodiment, the blade head is in the form of a scissors-like structure, and the opening and closing of the blade head is controlled by the control unit and the traction wire 4. Referring to FIG2 , the blade head can physically shear the diseased part like scissors, thereby avoiding the use of electric cutting to cause additional damage to body tissues or even perforation.
为了进一步提升实际手术的效果，刀头部的其中一个刀头的自由端设有倒钩8。倒钩8的内侧(即朝向刀头部铰接位置一侧)有刀刃，外侧为刀背，倒钩8使得本实施例的刀头部能够像镰刀一样，对病变部位进行钩切。根据发明人多年的临床经验，粘膜下组织多呈柱形，类似于庄稼或者杂草的生长形态，使用钩切的方式能够较好地对病变部位的粘膜下组织进行切除。同时，由于消化道内有大量体液(如胃液)存在，部分切除的机体组织的表面较滑，此时对于已切除的部分组织的固定会比较困难。因此，本实施例所述的倒钩8能够起到钩住、固定已切除的组织的作用，避免组织移位，此时无论是通过物理剪切还是通过电切割都十分方便。In order to further improve the effect of the actual operation, a barb 8 is provided at the free end of one of the blades of the blade head. The inner side of the barb 8 (i.e., the side facing the hinged position of the blade head) is provided with a blade, and the outer side is provided with a back of the blade. The barb 8 enables the blade head of the present embodiment to be like a sickle, to hook and cut the lesion. According to the inventor's many years of clinical experience, the submucosal tissue is mostly columnar, similar to the growth form of crops or weeds, and the use of hook cutting can better remove the submucosal tissue of the lesion. At the same time, due to the presence of a large amount of body fluids (such as gastric juice) in the digestive tract, the surface of the partially removed body tissue is relatively slippery, and it is more difficult to fix the removed part of the tissue at this time. Therefore, the barb 8 described in the present embodiment can play the role of hooking and fixing the removed tissue to avoid tissue displacement, and it is very convenient at this time whether it is through physical shearing or electrical cutting.
参阅图3，刀头部闭合后，其形成整体杆状结构。由于刀头部通过导丝5与电源电连接，在通电状态下，闭合后的刀头部可视为电刀(Duel刀)使用。此时，刀头部在闭合状态下，其内侧的刀刃会被另一刀头的刀体覆盖住，这样在将刀头部伸出或者伸入患者体内时，可以有效避免对患者的肌体组织造成划伤。Referring to FIG3 , after the blade head is closed, it forms an integral rod-shaped structure. Since the blade head is electrically connected to the power source through the guide wire 5, the closed blade head can be used as an electric knife (Duel knife) when powered on. At this time, when the blade head is in the closed state, the inner blade will be covered by the blade body of another blade head, so that when the blade head is extended out or inserted into the patient's body, it can effectively avoid scratching the patient's body tissue.
实施例二：Embodiment 2:
如图2或者图3所示，在实施例一的基础上，本实施例为克服现有的钩刀的前端没有设置绝缘装置的缺陷，在刀头部的自由端设有陶瓷顶头，所述陶瓷顶头是绝缘的，在手术过程中，若刀头部的顶端触碰到肌体组织，也会由于陶瓷顶头的绝缘作用而避免造成穿孔。As shown in Figure 2 or Figure 3, on the basis of Example 1, in order to overcome the defect that the front end of the existing hook knife is not equipped with an insulating device, this embodiment provides a ceramic plug at the free end of the blade head. The ceramic plug is insulating. During the operation, if the top of the blade head touches the body tissue, perforation will be avoided due to the insulating effect of the ceramic plug.
与陶瓷顶头相对的是，刀头部由钛合金材料制成。对于需要进入人体内的手术器械的材质要求较高，不仅需要耐高温、耐腐蚀，还必须具有较高的生物相容性，否则容易在人体内造成不必要的反应。当主刀医师在内镜灯下手术时，手术器械的表面防眩很重要。在此基础上，刀头部的表面还进行阳极氧化，通过改变金属的表面特性，使得手术器械在灯光照射下不发生反射。In contrast to the ceramic top, the blade head is made of titanium alloy. The material requirements for surgical instruments that need to enter the human body are high. They must not only be resistant to high temperatures and corrosion, but also have high biocompatibility, otherwise they are likely to cause unnecessary reactions in the human body. When the surgeon is operating under an endoscopic lamp, it is important to prevent the surface of the surgical instrument from glare. On this basis, the surface of the blade head is also anodized, which changes the surface properties of the metal so that the surgical instrument does not reflect when illuminated by light.
为了提高本实施例的安全性，刀头部的外侧与所述陶瓷顶头均为钝性结构，在刀头部闭合时，刀头部的外边缘都是钝性结构，在移动或者手术的过程中，能够避免对患者体内的肌体组织造成划伤。In order to improve the safety of this embodiment, the outer side of the blade head and the ceramic top are both blunt structures. When the blade head is closed, the outer edge of the blade head is a blunt structure, which can avoid scratching the patient's body tissue during movement or surgery.
实施例三：Embodiment three:
参阅图1或者图2或者图3，本实施例提供一种内镜粘膜剥离用的手术器械，包括控制部、刀头部和导管3，导管3的两端分别连接控制部和刀头部，导管3内部包裹有牵引钢丝4和导丝5，所述牵引钢丝4和导丝5也同样地分别与控制部和刀头部连接。本实施例中，所述刀头部包括第一刀头6、第二刀头7和刀座9，刀座9与导管3连接，刀座9上设有传动杆91，传动杆91的两端分别与第二刀头7和牵引钢丝4、导丝5连接。第一刀头6和第二刀头7铰接，通过控制部拉动牵引钢丝4，使牵引钢丝4带动传动杆91，传动杆91带动第二刀头7绕其铰接部位转动，从而实现刀头部的开合，产生剪刀似的切割效果。Referring to FIG. 1 or FIG. 2 or FIG. 3, this embodiment provides a surgical instrument for endoscopic mucosal stripping, comprising a control unit, a blade head and a catheter 3, the two ends of the catheter 3 are respectively connected to the control unit and the blade head, and the catheter 3 is wrapped with a traction wire 4 and a guide wire 5, and the traction wire 4 and the guide wire 5 are also respectively connected to the control unit and the blade head. In this embodiment, the blade head comprises a first blade head 6, a second blade head 7 and a blade holder 9, the blade holder 9 is connected to the catheter 3, and a transmission rod 91 is provided on the blade holder 9, and the two ends of the transmission rod 91 are respectively connected to the second blade head 7 and the traction wire 4 and the guide wire 5. The first blade head 6 and the second blade head 7 are hinged, and the traction wire 4 is pulled by the control unit, so that the traction wire 4 drives the transmission rod 91, and the transmission rod 91 drives the second blade head 7 to rotate around its hinged part, thereby realizing the opening and closing of the blade head, producing a scissors-like cutting effect.
第一刀头6的根部与刀座9承插连接，第二刀头7与传动杆卡扣连接，这使得第一刀头6、第二刀头7与刀座9是可拆卸连接的，在术中方便医师对第一刀头6、第二刀头7的更换。The root of the first blade head 6 is socket-connected to the blade holder 9, and the second blade head 7 is snap-connected to the transmission rod, which makes the first blade head 6, the second blade head 7 and the blade holder 9 detachable, making it convenient for the doctor to replace the first blade head 6, the second blade head 7 during the operation.
所述控制部包括与固定手柄1和活动手柄2，固定手柄1与导管3可拆卸连接，固定手柄1的两侧设有垂直于其长度方向的握持柄11，握持柄11上设有弧形凹陷12。固定手柄1上还设有用于承插活动手柄2的放置孔，活动手柄2在放置孔内前后限位移动。活动手柄2与牵引钢丝4连接，活动手柄2远离固定手柄1一端还设有套环，使用时，主刀医师将大拇指放置在套环内，将其他手指放置在握持柄11上的弧形凹陷12处，通过控制活动手柄2的前后移动，来带动牵引钢丝4，从而实现对于第二刀头7的控制。The control unit includes a fixed handle 1 and a movable handle 2. The fixed handle 1 is detachably connected to the catheter 3. The fixed handle 1 is provided with gripping handles 11 perpendicular to its length direction on both sides, and an arc-shaped depression 12 is provided on the gripping handle 11. The fixed handle 1 is also provided with a placement hole for inserting the movable handle 2, and the movable handle 2 moves forward and backward in the placement hole. The movable handle 2 is connected to the traction wire 4, and a ring is also provided at the end of the movable handle 2 away from the fixed handle 1. When in use, the surgeon places the thumb in the ring and places the other fingers on the arc-shaped depression 12 on the gripping handle 11. By controlling the forward and backward movement of the movable handle 2, the traction wire 4 is driven, thereby realizing the control of the second blade 7.
固定手柄1上设有电源接口10，导丝5与电源接口10电连接，通电后，可使用高频高压电击切除需要手术切除的部位。同时，为避免导丝5通电后伤害人体内部其他正常组织，导管3的外侧包覆有绝缘材料。The fixed handle 1 is provided with a power interface 10, and the guide wire 5 is electrically connected to the power interface 10. After power is turned on, a high-frequency high-voltage electric shock can be used to remove the part that needs to be surgically removed. At the same time, in order to prevent the guide wire 5 from damaging other normal tissues inside the human body after power is turned on, the outer side of the catheter 3 is coated with an insulating material.
在上述具体实施方式的具体内容中，各技术特征可以进行任意不矛盾的组合，为使描述简洁，未对上述各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
显然，本实用新型的上述实施例仅仅是为清楚地说明本实用新型所作的举例，而并非是对本实用新型的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型权利要求的保护范围之内。Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322557675.3UCN221555887U (en) | 2023-09-19 | 2023-09-19 | Surgical instrument for endoscopic mucosa stripping |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322557675.3UCN221555887U (en) | 2023-09-19 | 2023-09-19 | Surgical instrument for endoscopic mucosa stripping |
| Publication Number | Publication Date |
|---|---|
| CN221555887Utrue CN221555887U (en) | 2024-08-20 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322557675.3UActiveCN221555887U (en) | 2023-09-19 | 2023-09-19 | Surgical instrument for endoscopic mucosa stripping |
| Country | Link |
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| CN (1) | CN221555887U (en) |
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