技术领域technical field
本发明涉及医疗护理技术领域，尤其是一种安全套管针。The invention relates to the technical field of medical care, in particular to a safety trocar.
背景技术Background technique
传统的套管针包括套管和针芯，如图1和图2的套管1和针芯2，套管1是套在针芯2上形成一个套管针的，护士在给病人注射血管时，将套管针的针芯2的针尖以15度角插入血管，当针芯2的针尾内见回血以后再将针芯2从血管中退出，并将套管1全部送入血管内，然后在套管1的尾端接上输液管，在这个过程中，当针芯2退出时，由于套管1不是封闭的，套管1与连接套筒12是连通的，所以使得连接套筒12、套管1和血管之间形成了一个通道，该通道没有封闭，所以血液会经过通道从连接套筒12开口处流出病人体外，容易造成病人的血液流失和医护人员的职业暴露，特别是当穿刺到动脉血管时，动脉的压力比最大，动脉喷涌得更容易，喷涌流出病人身体，造成病人的更多血液流失；另一方面，当一个病人一天输液量输完时，第二天继续输液时，此时需要保留套管1在血管内，需要将输液管卸下，那么护士必须在套管1的尾端封管装上肝素帽，防止血液往外流，在给病人拆除输液管时，有可能导致血液往外流，还有可能污染套管1的连接套筒12端部，这样可能导致血管感染引起静脉炎，而护士新增肝素帽也增加了其工作量。A traditional trocar includes a cannula and a needle core, such as the cannula 1 and the needle core 2 shown in Figures 1 and 2. The cannula 1 is set on the needle core 2 to form a trocar. The nurse injects blood vessels into the patient. Insert the needle point of the needle core 2 of the trocar into the blood vessel at an angle of 15 degrees, and then withdraw the needle core 2 from the blood vessel after seeing blood returning from the needle tail of the needle core 2, and send all the cannula 1 into the blood vessel , and then connect the infusion tube to the tail end of the casing 1. In this process, when the needle core 2 withdraws, since the casing 1 is not closed, the casing 1 and the connecting sleeve 12 are in communication, so that the connecting sleeve A channel is formed between the sleeve 12, the cannula 1 and the blood vessel. The channel is not closed, so the blood will flow out of the patient's body from the opening of the connecting sleeve 12 through the channel, which will easily cause the patient's blood loss and the occupational exposure of the medical staff, especially When the arterial blood vessel is punctured, the pressure ratio of the artery is the largest, and the arterial gushing is easier, and the gushing out of the patient's body causes more blood loss of the patient; When continuing the infusion, the cannula 1 needs to be kept in the blood vessel and the infusion tube needs to be removed. Then the nurse must seal the end of the cannula 1 with a heparin cap to prevent the blood from flowing out, and remove the infusion tube for the patient. When it is possible to cause blood to flow out, it is also possible to pollute the connecting sleeve 12 end of sleeve pipe 1, which may cause vascular infection and cause phlebitis, and the new heparin cap of the nurse has also increased its workload.
发明内容Contents of the invention
为解决上述技术问题，本发明提供一种当针芯退出时，能使得套管和血管之间的通道自动封闭，但又不影响输液器的连接，护士也不需要再增加肝素帽的安全套管针。In order to solve the above technical problems, the present invention provides a safety sleeve that can automatically close the channel between the sleeve and the blood vessel when the needle core is withdrawn, but does not affect the connection of the infusion set, and the nurse does not need to add a heparin cap. Needle.
为实现上述目的，本发明采用以下的技术方案：一种安全套管针，包括相连接的套管和针芯，套管包括管体和连接套筒，针芯包括针、与针连接的握持端，连接套筒一端与管体连通，针从所述连接套筒插入并置于管体内，所述握持端扣接在所述连接套筒端部，所述针的针尖露出所述管体端部；在所述连接套筒的开口端内固设有橡胶塞，橡胶塞具有：针从橡胶塞中贯穿并当针拔出橡胶塞时，橡胶塞内被针贯穿的通孔能自我复原的弹性结构。In order to achieve the above object, the present invention adopts the following technical solutions: a safety trocar, comprising a connected sleeve and a needle core, the sleeve comprises a tube body and a connecting sleeve, the needle core comprises a needle, a grip connected with the needle One end of the connecting sleeve communicates with the tube body, the needle is inserted from the connecting sleeve and placed in the tube body, the holding end is fastened to the end of the connecting sleeve, and the needle tip of the needle is exposed from the tube The end of the body; a rubber plug is fixed in the opening end of the connecting sleeve, and the rubber plug has: the needle penetrates through the rubber plug and when the needle is pulled out of the rubber plug, the through hole penetrated by the needle in the rubber plug can automatically Resilient elastic structure.
所述握持端朝向针的端面上设有弹性卡片，对应的在所述连接套筒开口端部向外沿扩伸有卡台，弹性卡片与卡台卡接，所述针芯通过弹性卡片、卡台卡设在套管。An elastic card is provided on the end surface of the holding end facing the needle, and correspondingly, a card platform is extended outward at the opening end of the connecting sleeve. The elastic card is engaged with the card platform. , The card station card is arranged in the casing.
沿所述连接套筒表面的切线与管体垂直的方向还对称的设有翼片，在所述翼片上开设有通孔。翼片的设置方便在将套管针插入血管时，医护人员能通过翼片将套管针按压在手臂上，从而方便进行输液操作，而该翼片是设在连接套筒的表面的切线上，使得输液时，与手臂贴合的是水平面的翼片而不是圆柱面的连接套筒，这样能使得按压更加均匀，使输液更好的进行；而通孔的设置是通过医疗缝线的穿过将套管针固定在皮肤上，具体的是医疗缝线穿过通孔缝在皮肤上，防止套管针脱落，这对于有躁动症的病人来说，用通孔能更好的固定住。Fins are also arranged symmetrically along the direction perpendicular to the pipe body along the tangent to the surface of the connecting sleeve, and through holes are opened on the fins. The setting of the fin is convenient. When the trocar is inserted into the blood vessel, the medical staff can press the trocar on the arm through the fin, so as to facilitate the infusion operation, and the fin is set on the tangent line of the surface of the connecting sleeve , so that when the infusion is infused, the fins on the horizontal plane are attached to the arm instead of the connecting sleeve on the cylindrical surface, which can make the pressing more uniform and make the infusion better; and the setting of the through hole is through the medical suture. By fixing the trocar on the skin, specifically, medical sutures are sewn on the skin through the through hole to prevent the trocar from falling off. For patients with restlessness, the through hole can be better fixed .
所述橡胶塞包括固定塞满于连接套筒的开口端中的塞体，所述塞体露出连接套筒的开口端的部分向四周沿伸有塞沿，所述塞沿粘结在连接套筒的开口端端口。通过这种结构，能更加保证橡胶塞在外力的作用下固定在连接套筒开口端处且不会产生位移，提高了产品的安全性能。The rubber plug includes a plug body that is fixedly stuffed into the opening end of the connecting sleeve, and the part of the plug body exposed to the opening end of the connecting sleeve has a plug edge extending around it, and the plug edge is bonded to the connecting sleeve open end port. Through this structure, it can be more guaranteed that the rubber plug is fixed at the opening end of the connecting sleeve without displacement under the action of external force, which improves the safety performance of the product.
本发明与现有技术相比，具有如下优点：通过在套管上设置橡胶塞，一方面针芯穿过橡胶塞后置于套管内，并不影响一并插入到血管中，另一方面，当针芯从套管内、橡胶塞中依次拔出使套管留在血管时，由于橡胶塞具有弹性的复原功能使得在套管内、橡胶塞之间形成了一个封闭效果，血液无法从连接套筒开口处流出，避免了血液污染医护人员的风险，而该橡胶塞也能供输液管的输液端插入，因此保证了穿刺、换液、输液的连续性，不需要医护人员再进行更换相关部件，避免了频繁更换容易引起感染风险的可能。Compared with the prior art, the present invention has the following advantages: by setting the rubber stopper on the cannula, on the one hand, the needle core is placed in the cannula after passing through the rubber stopper, which does not affect the insertion into the blood vessel; on the other hand, When the needle core is pulled out sequentially from the cannula and the rubber stopper so that the cannula stays in the blood vessel, due to the elastic recovery function of the rubber stopper, a sealing effect is formed between the cannula and the rubber stopper, and the blood cannot flow through the connecting sleeve. The outflow from the opening avoids the risk of blood contamination to the medical staff, and the rubber stopper can also be inserted into the infusion end of the infusion tube, thus ensuring the continuity of puncture, fluid change, and infusion without the need for medical staff to replace relevant parts. It avoids the possibility that frequent replacement may easily cause the risk of infection.
附图说明Description of drawings
图1为套管和针芯分解结构示意图；Fig. 1 is the schematic diagram of the exploded structure of sleeve pipe and needle core;
图2为针芯插入套管结构示意图；Fig. 2 is a schematic diagram of the structure of the needle core inserted into the sleeve;
图3为针芯、橡胶塞和套管分解结构示意图(一)；Figure 3 is a schematic diagram of the exploded structure of the needle core, rubber plug and sleeve (1);
图4为针芯、橡胶塞和套管分解结构示意图(二)；Fig. 4 is a schematic diagram of the exploded structure of the needle core, rubber plug and sleeve (2);
图5为针芯、橡胶塞和套管组合结构示意图；Fig. 5 is a schematic diagram of the combined structure of the needle core, rubber plug and sleeve;
图6为本发明实施例二结构示意图。Fig. 6 is a schematic structural diagram of Embodiment 2 of the present invention.
具体实施方式detailed description
下面结合附图和具体实施方式对本发明的内容做进一步详细说明。The content of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
实施例一：Embodiment one:
请参阅图3到图5所示，一种安全套管针，包括相连接的套管1和针芯2，套管1包括管体11和连接套筒12，针芯2包括针21、与针21连接的握持端22，连接套筒12一端与管体11连通，针21从连接套筒12插入并置于管体11内，握持端22扣接在连接套筒12端部，针21的针尖露出管体11端部；在连接套筒12的开口端内还固设有橡胶塞3，橡胶塞3具有：针21从橡胶塞3中贯穿并当针21拔出橡胶塞3时，橡胶塞3内被针21贯穿的通孔能自我复原的弹性结构。本实施例的橡胶塞3外表面与连接套筒12的内壁紧密粘结连接，以保证橡胶塞3受到外力作用也不会在连接套筒12内产生位移。Please refer to Fig. 3 to Fig. 5, a kind of safety trocar comprises the sleeve tube 1 and the needle core 2 that are connected, the sleeve tube 1 comprises the tubular body 11 and the connection sleeve 12, the needle core 2 comprises the needle 21, and the needle core 2. 21 connected to the holding end 22, one end of the connecting sleeve 12 communicates with the tube body 11, the needle 21 is inserted from the connecting sleeve 12 and placed in the tube body 11, the holding end 22 is fastened to the end of the connecting sleeve 12, the needle The needle tip of 21 exposes the end of the tube body 11; a rubber plug 3 is also fixed in the opening end of the connecting sleeve 12, and the rubber plug 3 has: the needle 21 penetrates through the rubber plug 3 and when the needle 21 pulls out the rubber plug 3 , the rubber stopper 3 is a self-recoverable elastic structure through the through hole penetrated by the needle 21. In this embodiment, the outer surface of the rubber plug 3 is closely bonded to the inner wall of the connecting sleeve 12 to ensure that the rubber plug 3 will not be displaced in the connecting sleeve 12 even when it is subjected to external force.
握持端22朝向针21的端面上设有弹性卡片221，对应的在连接套筒12开口端部向外沿扩伸有卡台121，弹性卡片221与卡台121卡接，针芯2通过弹性卡片221、卡台121与套管1卡接。An elastic card 221 is provided on the end surface of the holding end 22 facing the needle 21, and a card platform 121 is correspondingly extended outward from the opening end of the connecting sleeve 12. The elastic card 221 is clamped with the card platform 121, and the needle core 2 passes through The elastic card 221 and the card platform 121 are engaged with the sleeve 1 .
进一步的，沿连接套筒12表面的切线与管体11垂直的方向还对称的设有翼片13，在翼片13上开设有通孔131。在将套管针插入血管时，医护人员能通过翼片将套管针按压在手臂上，从而方便进行输液操作，而该翼片是设在连接套筒的表面的切线上，使得输液时，与手臂贴合的是水平面的翼片而不是圆柱面的连接套筒，这样能使得按压更加均匀，使输液更好的进行；而通孔的设置是通过医疗缝线的穿过将套管针固定在皮肤上，具体的是医疗缝线穿过通孔缝在皮肤上，防止套管针脱落，这对于有躁动症的病人来说，用通孔能更好的固定住。Further, fins 13 are provided symmetrically along the direction perpendicular to the pipe body 11 along the tangent to the surface of the connecting sleeve 12 , and through holes 131 are opened on the fins 13 . When the trocar is inserted into the blood vessel, the medical staff can press the trocar on the arm through the fins, so as to facilitate the infusion operation, and the fins are arranged on the tangent of the surface of the connecting sleeve, so that when infusion, What fits the arm is the horizontal fin instead of the cylindrical connecting sleeve, which can make the pressing more uniform and make the infusion better; and the setting of the through hole is to pass the trocar through the medical suture. It is fixed on the skin, specifically, medical sutures are sewn on the skin through the through hole to prevent the trocar from falling off. For patients with restlessness, the through hole can be better fixed.
实施例二：Embodiment two:
请结合图6所示，本实施例其他结构与实施例一相同，不同在于，橡胶塞3的结构，橡胶塞3包括固定塞满于连接套筒12的开口端中的塞体31，塞体31露出连接套筒12的开口端的部分向四周沿伸有塞沿32，塞沿32紧密粘结在连接套筒12的开口端端口。通过这种结构，能更加保证橡胶塞3在外力的作用下不会产生位移。提高了产品的安全性能。Please refer to FIG. 6, the other structure of this embodiment is the same as that of Embodiment 1, the difference lies in the structure of the rubber plug 3, the rubber plug 3 includes a plug body 31 fixedly filled in the opening end of the connecting sleeve 12, the plug body The part 31 exposed from the opening end of the connecting sleeve 12 has a plug edge 32 extending around it, and the plug edge 32 is tightly bonded to the opening end port of the connecting sleeve 12 . Through this structure, it can be more guaranteed that the rubber stopper 3 will not be displaced under the action of external force. Improve the safety performance of the product.
上列详细说明是针对本发明可行实施例的具体说明，该实施例并非用以限制本发明的专利范围，凡未脱离本发明所为的等效实施或变更，均应包含于本案的专利范围中。The above detailed description is a specific description of the feasible embodiment of the present invention. This embodiment is not used to limit the patent scope of the present invention. Any equivalent implementation or change that does not deviate from the present invention should be included in the patent scope of this case. middle.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465782.5ACN106110435A (en) | 2016-06-22 | 2016-06-22 | A kind of safety trocar |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465782.5ACN106110435A (en) | 2016-06-22 | 2016-06-22 | A kind of safety trocar |
| Publication Number | Publication Date |
|---|---|
| CN106110435Atrue CN106110435A (en) | 2016-11-16 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610465782.5APendingCN106110435A (en) | 2016-06-22 | 2016-06-22 | A kind of safety trocar |
| Country | Link |
|---|---|
| CN (1) | CN106110435A (en) |
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| CN110051898A (en)* | 2019-06-10 | 2019-07-26 | 端源医疗科技无锡有限公司 | Trochar is used in disposable dialysis |
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| CN110051898A (en)* | 2019-06-10 | 2019-07-26 | 端源医疗科技无锡有限公司 | Trochar is used in disposable dialysis |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20161116 |