WO2019140550A1 - Clip-type device for preventing exposure of needle tip - Google Patents
Clip-type device for preventing exposure of needle tip Download PDFInfo
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- WO2019140550A1 WO2019140550A1 PCT/CN2018/072829 CN2018072829W WO2019140550A1 WO 2019140550 A1 WO2019140550 A1 WO 2019140550A1 CN 2018072829 W CN2018072829 W CN 2018072829W WO 2019140550 A1 WO2019140550 A1 WO 2019140550A1
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- clip
- needle
- tube
- preventing
- tip
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
Definitions
- This invention relates to a member for preventing a needle tip from penetrating in an indwelling needle, and more particularly to a clip-type device for preventing a needle tip from penetrating.
- the indwelling needle in the prior art is shown in Figures 1 and 2, which is the prior application of the applicant.
- the indwelling needle consists of a catheter hub assembly 1 and a hub assembly 2.
- the needle hub assembly 1 includes a connector head 2.3 and a storage sleeve 2.4 for connecting the catheter hub assembly 1 and the storage sleeve 2.4, which is detachably connected to the catheter assembly 1 and is fixedly connected or integrated with the storage sleeve 2.4. structure.
- the connection between the connector 2.3 and the catheter hub assembly 1 can be pulled off with a little external force, as shown in FIG.
- a device for preventing the tip of the needle from coming out is composed of an eccentric triangular valve 2.1 and a limit stop 2.2, and the triangular valve 2.1 is installed in a slot at the rear of the connector 2.3, and the limit stop 2.2 is fixed at the end of the slot. End face, used to limit the triangular valve 2.1.
- the triangular valve 2.1 is perforated in the center from which the needle is passed.
- the object of the present invention is to overcome the deficiencies in the prior art, and to provide a clip-type device for preventing the tip of the needle from coming out, which can prevent the structure from being easily broken, can effectively prevent the needle tip from coming out, and is easy to operate and assemble.
- the object of the present invention is achieved by the following route.
- a clip-type device for preventing the tip of the needle from coming out the device being disposed in the indwelling needle, wherein the indwelling needle has a connector connecting the catheter assembly and the needle tube assembly, and the connector is fixedly connected or integrated with the storage sleeve in the needle tube assembly
- the utility model comprises a clip
- the clip comprises a body and a clip body
- the body is fixed at the rear end of the connector
- the body has a pinhole through which the needle tube is inserted
- one end of the clip body is fixed on the body.
- the other end extends rearward along the axial direction of the needle tube, and the overhanging end protrudes from the center of the pinhole with a convex head, and the convex head in the free state covers the needle hole.
- the clip body has elasticity due to overhanging.
- the clip body When assembling, the clip body is opened outwardly, and the needle tube can pass through the needle hole on the body through the needle thread. Thereafter, the rebound clip body has a convex head.
- the bullet is pressed on the needle tube. After the needle is in place, the nose loses the blockage of the needle tube and continues to rebound downward to the free state, thereby covering the needle hole on the body and blocking the needle threading path, so that the needle tube that is trying to extend will be convex. Blocked by the head.
- a clip-type device for preventing the tip of the needle from coming out the device being disposed in the indwelling needle, wherein the indwelling needle has a connector connecting the catheter assembly and the needle tube assembly, and the connector is fixedly connected or integrated with the storage sleeve in the needle tube assembly
- the main point of the composition is that it comprises a clip and an elastic shrink tube.
- the clip comprises a body, a clip body and a support body. The body is fixed at the rear end of the connector, and the body has a pinhole through which the needle tube is inserted.
- One end of the clip body is fixed on the body, the other end extends rearward along the axial direction of the needle tube, and the support body and the clip body are relatively distributed.
- the clip body and the support body are respectively located on both sides of the center line of the needle insertion hole, and the elastic body is elastic.
- the shrink tube is sleeved on the outer side of the clip body and the support body.
- the elastic shrink sleeve elastically presses the clip body against the support body to cover the trajectory of the needle hole and the needle insertion needle.
- the clip body is opened outward, and the needle tube can pass through the needle hole on the body through the needle path, and then the rebound clip body is pressed on the needle tube.
- the clip body loses the blockage of the needle tube, and under the elastic force of the elastic shrink sleeve, the spring body continues to be pressed against the support body on the other side, thereby covering the needle hole on the body and blocking the needle threading path. In this way, the needle tube that is trying to reach forward will be blocked by the clip body.
- the object of the present invention can also be achieved by the following means.
- the body is a disc body recessed in a corresponding groove at the rear end of the connector and fixed.
- the corresponding groove of the rear end portion of the connector extends rearward, and the clip body, the support body and the elastic shrink tube are all contained in the groove.
- the overhanging end of the clip body protrudes from the center of the pinhole with a convex head.
- the protrusion is pressed on the needle tube. After the needle is in place, the protrusion loses the blockage of the needle tube, and continues to rebound downward to the support body, thereby covering the body. The pinhole is blocked on the trajectory of the needle, so that the needle that is trying to extend will be blocked by the nose.
- the nose in the free state covers the pinhole.
- the clip body that has lost the needle tube is elastically contacted with the support body under the elastic force of the elastic shrink sleeve.
- the support body is a clip body. After the needle is withdrawn, the clip body that has lost the needle tube is elastically contacted with the support body under the elastic force of the elastic shrink sleeve.
- the two oppositely distributed clip bodies contract toward the center of the needle hole until they are pressed together.
- the tail end of the elastic shrink tube is either flush with the tail end of the clip body or longer than the tail end of the clip body.
- the present invention has the following advantages over the prior art: the structure for preventing the needle tip from coming out is not easy to malfunction, the needle tip can be effectively prevented from being worn out, and the assembly is easy to operate, and the structure is simple.
- FIG. 1 is a schematic view showing the structure of an indwelling needle having a needle tip preventing device in the prior art
- FIG. 2 is a schematic structural view of a state in which an indwelling needle having a needle tip penetrating device is prevented from being in a position after the needle is in place in the prior art;
- FIG. 3 is a schematic structural view of an indwelling needle having a clip-type tip preventing device according to the first embodiment of the present invention
- FIG. 4 is a schematic structural view of a device for preventing a needle tip from penetrating according to a first embodiment of the present invention
- FIG. 5 is a schematic structural view of a clip-type device for preventing a needle tip from penetrating according to a preferred embodiment of the present invention
- Figure 6 is a schematic view showing the structure of the indwelling needle of the clip-type tip preventing device according to the preferred embodiment of the present invention.
- Figure 7 is a schematic view showing the structure of the indwelling needle having the clip-type tip preventing device of the present invention after the needle is withdrawn;
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- a clip-on device for preventing the tip of the needle from being inserted out is provided in the indwelling needle having a connector for connecting the catheter assembly and the needle cannula assembly, the connector and the needle cannula assembly
- the storage sleeve or the fixed connection or the integral structure, the clip-type device for preventing the needle tip from coming out comprises a clip 2.5, the clip 2.5 includes the body 2.5.1 and the clip body 2.5.3, and the body 2.5.1 is fixed at the connection.
- the rear end portion of the head has a needle hole 2.5.2 through which the needle tube is inserted.
- the one end of the clip body 2.5.3 is fixed on the body 2.5.1, and the other end extends rearward along the axial direction of the needle tube and overhangs.
- the overhanging end protrudes from the center of the pinhole with a convex head, and the convex head in the free state covers the needle hole 2.5.2.
- the body 2.5.1 is a disc body recessed in a corresponding groove at the rear end of the joint head 2.3 and fixed.
- the corresponding groove of the rear end portion of the connector head 2.3 extends rearward, and the clip body 2.5.3 is contained in the groove.
- the device is disposed in the indwelling needle, and the indwelling needle has a connector connecting the catheter assembly and the needle tube assembly, and the connector is accommodated in the needle tube assembly.
- the clip-type device for preventing the tip from penetrating includes a clip 2.5 and an elastic shrink tube 2.6.
- the clip includes a body 2.5.1, a clip body 2.5.3 and a support body 2.5.4, and the body 2.5.1 is fixed at The rear end of the connecting head 2.3, the main body 2.5.1 has a through-hole 2.5.2 for inserting the needle tube, and the end of the clip body 2.5.3 is fixed on the body 2.5.1, and the other end extends backward along the axial direction of the needle tube.
- the support body 2.5.4 is relatively distributed with the clip body 2.5.3, the clip body 2.5.3 and the support body 2.5.4 are respectively located on both sides of the center line of the needle hole 2.5.2, and the elastic shrink tube 2.6 is set.
- the elastic shrink tube 2.6 is set.
- the body 2.5.1 is a disc body recessed in a corresponding groove at the rear end of the joint head 2.3 and fixed.
- the corresponding recess of the rear end of the connector extends rearwardly, and the clip body 2.5.3, the support body 2.5.4, and the elastic shrink tube 2.6 are all contained in the recess.
- the overhanging end of the clip body 2.5.3 protrudes from the center of the pinhole with a convex head, and the convex head in the free state covers the needle hole 2.5.2.
- the clip body 2.5.3, which has lost the needle tube is elastically contacted with the support body 2.5.4 under the elastic force of the elastic shrink tube 2.6.
- the tail end of the elastic shrink tube 2.6 is either flush with the tail end of the clip body 2.5.3 or longer than the tail end of the clip body 2.5.3.
- the needle withdrawal state is shown in Figure 5.
- the indwelling needle is used after the needle is removed, and the needle tube is gradually stored into the telescopic storage sleeve.
- the clip body 2.5.3 is in the elastic shrink tube. The elastic recovery tightening force is quickly closed, and the convex end of the clip body 2.5.3 is shielded from the body 2.5.1 and the over-needle hole 2.5.2 on the connector, and the needle tube will not be worn back.
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- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
Provided is a clip-type device for preventing the exposure of a needle tip, the device comprising a clip (2.5). The clip comprises a body (2.5.1) and a clip body (2.5.3); the body (2.5.1) is fixed at a rear end of a connector; a needle passage hole (2.5.2) through which a needle tube passes runs through the body (2.5.1); and one end of the clip body (2.5.3) is fixed on the body (2.5.1), and the other end thereof extends rearward in the axial direction of the needle tube and is suspended over the tube. In one technical solution, the suspended end of the clip body (2.5.3) has a raised head protruding towards the center of the needle passage hole, and the raised head in a free state covers the needle passage hole (2.5.2). In another technical solution, the clip further comprises an elastic constriction tube (2.6), the clip (2.5) is provided with a support body (2.5.4), the support body (2.5.4) is distributed opposite the clip body (2.5.3), the clip body (2.5.3) and the support body (2.5.4) are respectively located on two sides of the center line of the needle passage hole (2.5.2), and the elastic constriction tube (2.6) is sheathed over an outer side face of the clip body (2.5.3) and the support body (2.5.4). The structure of the device for preventing exposure of a needle tip does not easily malfunction and can effectively prevent the exposure of a needle tip. The device is easy to operate and assemble, and has a simple structure.
Description
本发明涉及一种留置针中防止针尖穿出的部件，特别是一种夹片式防止针尖穿出的装置。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a member for preventing a needle tip from penetrating in an indwelling needle, and more particularly to a clip-type device for preventing a needle tip from penetrating.
现有技术中一种留置针如图1和图2所示，其为本申请人在先申请。该留置针由导管座组件1和针座组件2组成。针座组件1中包括连接头2.3和收纳套2.4，连接头2.3用于连接导管座组件1和收纳套2.4，其与导管组件1可拔插式连接，而与收纳套2.4或固定连接或一体构造。撤针到位后，稍用外力即可拉脱连接头2.3与导管座组件1的连接，如图2所示。一种防止针尖穿出的装置由偏心式三角阀2.1和限位挡片2.2组成，三角阀2.1含装在连接头2.3后部的槽腔中，限位挡片2.2固定在该槽腔的尾端面，用于对三角阀2.1限位。三角阀2.1中心穿孔，针管从该穿孔中穿出。撤针到位时，针管从该穿孔中撤出，三角阀2.1失去支撑，因偏心而偏离原位，穿孔也相应偏离，从而保证脱离的针管一旦前伸，将被该三角阀2.1阻挡，从而防止针尖穿出。如图2所示。由于槽腔尺寸较小以及偏心阀的制造误差，有时会导致偏心失灵，并且三角阀因偏心导致组装时不易操作，组装不太方便。An indwelling needle in the prior art is shown in Figures 1 and 2, which is the prior application of the applicant. The indwelling needle consists of a catheter hub assembly 1 and a hub assembly 2. The needle hub assembly 1 includes a connector head 2.3 and a storage sleeve 2.4 for connecting the catheter hub assembly 1 and the storage sleeve 2.4, which is detachably connected to the catheter assembly 1 and is fixedly connected or integrated with the storage sleeve 2.4. structure. After the needle is withdrawn, the connection between the connector 2.3 and the catheter hub assembly 1 can be pulled off with a little external force, as shown in FIG. A device for preventing the tip of the needle from coming out is composed of an eccentric triangular valve 2.1 and a limit stop 2.2, and the triangular valve 2.1 is installed in a slot at the rear of the connector 2.3, and the limit stop 2.2 is fixed at the end of the slot. End face, used to limit the triangular valve 2.1. The triangular valve 2.1 is perforated in the center from which the needle is passed. When the needle is withdrawn, the needle tube is withdrawn from the perforation, the triangular valve 2.1 loses its support, and the eccentricity deviates from the original position, and the perforation is also deviated accordingly, thereby ensuring that once the detached needle tube is extended, it will be blocked by the triangular valve 2.1, thereby preventing The tip of the needle is worn out. as shown in picture 2. Due to the small size of the cavity and the manufacturing error of the eccentric valve, eccentricity is sometimes caused, and the triangular valve is difficult to operate due to eccentricity, and assembly is not convenient.
发明内容Summary of the invention
本发明的目的在于克服现有技术中的不足之处，而提供一种防止构造不易失灵，可有效防止针尖穿出的，同时又易于操作组装的一种夹片式防止针尖穿出的装置。SUMMARY OF THE INVENTION The object of the present invention is to overcome the deficiencies in the prior art, and to provide a clip-type device for preventing the tip of the needle from coming out, which can prevent the structure from being easily broken, can effectively prevent the needle tip from coming out, and is easy to operate and assemble.
本发明的目的是通过以下途径来实现的。The object of the present invention is achieved by the following route.
一种夹片式防止针尖穿出的装置，此装置设置在留置针中，留置针中具有连接导管组件和针管组件的连接头，该连接头与针管组件中的收纳套或固定连接或一体构造，其组成要点在于：包括一种夹片，夹片包括本体和夹片体，本体固定在连接头后端部，本体上贯穿有穿接针管的过针孔，夹片体一端固定在本体上，另一端沿针管轴向向后延伸而悬伸，悬伸的端部向针孔中心方向突凸有凸头，自由状态下的凸头遮盖住过针孔。A clip-type device for preventing the tip of the needle from coming out, the device being disposed in the indwelling needle, wherein the indwelling needle has a connector connecting the catheter assembly and the needle tube assembly, and the connector is fixedly connected or integrated with the storage sleeve in the needle tube assembly The main point of the composition is that the utility model comprises a clip, the clip comprises a body and a clip body, the body is fixed at the rear end of the connector, and the body has a pinhole through which the needle tube is inserted, and one end of the clip body is fixed on the body. The other end extends rearward along the axial direction of the needle tube, and the overhanging end protrudes from the center of the pinhole with a convex head, and the convex head in the free state covers the needle hole.
以上为本发明的第一种技术方案。夹片体因悬伸而具有弹性，组装时，向外掰开夹片体，针管即可沿其穿针轨迹穿过本体上的过针孔，此后，回弹的夹片体，其凸头弹压在针管上。撤针到位后，凸头失去针管的阻挡，继续向下回弹至自由状态，从而遮盖住本体上的过针孔并阻挡在针管穿针的轨迹上，这样，试图前伸的针管将被凸头所阻挡。The above is the first technical solution of the present invention. The clip body has elasticity due to overhanging. When assembling, the clip body is opened outwardly, and the needle tube can pass through the needle hole on the body through the needle thread. Thereafter, the rebound clip body has a convex head. The bullet is pressed on the needle tube. After the needle is in place, the nose loses the blockage of the needle tube and continues to rebound downward to the free state, thereby covering the needle hole on the body and blocking the needle threading path, so that the needle tube that is trying to extend will be convex. Blocked by the head.
一种夹片式防止针尖穿出的装置，此装置设置在留置针中，留置针中具有连接导管 组件和针管组件的连接头，该连接头与针管组件中的收纳套或固定连接或一体构造，其组成要点在于：包括一种夹片和一种弹性收缩管，夹片包括本体、夹片体和支撑体，本体固定在连接头后端部，本体上贯穿有穿接针管的过针孔，夹片体一端固定在本体上，另一端沿针管轴向向后延伸而悬伸，支撑体与夹片体相对分布，夹片体和支撑体分别位于过针孔中心线的两侧，弹性收缩管套设在夹片体和支撑体的外侧面上。A clip-type device for preventing the tip of the needle from coming out, the device being disposed in the indwelling needle, wherein the indwelling needle has a connector connecting the catheter assembly and the needle tube assembly, and the connector is fixedly connected or integrated with the storage sleeve in the needle tube assembly The main point of the composition is that it comprises a clip and an elastic shrink tube. The clip comprises a body, a clip body and a support body. The body is fixed at the rear end of the connector, and the body has a pinhole through which the needle tube is inserted. One end of the clip body is fixed on the body, the other end extends rearward along the axial direction of the needle tube, and the support body and the clip body are relatively distributed. The clip body and the support body are respectively located on both sides of the center line of the needle insertion hole, and the elastic body is elastic. The shrink tube is sleeved on the outer side of the clip body and the support body.
以上为本发明的第二种技术方案。弹性收缩套以其弹性将夹片体弹压向支撑体，从而遮盖住过针孔以及针管穿针的轨迹。组装时，向外掰开夹片体，针管即可沿其穿针轨迹穿过本体上的过针孔，此后，回弹的夹片体弹压在针管上。撤针到位后，夹片体失去针管的阻挡，在弹性收缩套的弹力作用下，继续弹压向另一侧的支撑体，从而遮盖住本体上的过针孔并阻挡在针管穿针的轨迹上，这样，试图前伸的针管将被夹片体所阻挡。The above is the second technical solution of the present invention. The elastic shrink sleeve elastically presses the clip body against the support body to cover the trajectory of the needle hole and the needle insertion needle. When assembling, the clip body is opened outward, and the needle tube can pass through the needle hole on the body through the needle path, and then the rebound clip body is pressed on the needle tube. After the needle is withdrawn, the clip body loses the blockage of the needle tube, and under the elastic force of the elastic shrink sleeve, the spring body continues to be pressed against the support body on the other side, thereby covering the needle hole on the body and blocking the needle threading path. In this way, the needle tube that is trying to reach forward will be blocked by the clip body.
本发明的目的还可以通过以下途径来实现。The object of the present invention can also be achieved by the following means.
上述两种技术方案的进一步优化是：Further optimization of the above two technical solutions is:
本体是一种圆盘体，凹设在连接头后端部的对应凹槽中并固接。The body is a disc body recessed in a corresponding groove at the rear end of the connector and fixed.
连接头后端部的对应凹槽向后延伸，夹片体、支撑体以及弹性收缩管均含装在此凹槽中。The corresponding groove of the rear end portion of the connector extends rearward, and the clip body, the support body and the elastic shrink tube are all contained in the groove.
上述第二种技术方案的进一步优化是：Further optimization of the above second technical solution is:
夹片体悬伸的端部向过针孔中心方向突凸有凸头。The overhanging end of the clip body protrudes from the center of the pinhole with a convex head.
这样，在弹性收缩套的弹力作用下，弹压在针管上的是该凸头，撤针到位后，凸头失去针管的阻挡，继续向下回弹至向支撑体，从而遮盖住本体上的过针孔并阻挡在针管穿针的轨迹上，这样，试图前伸的针管将被凸头所阻挡。Thus, under the elastic force of the elastic shrink sleeve, the protrusion is pressed on the needle tube. After the needle is in place, the protrusion loses the blockage of the needle tube, and continues to rebound downward to the support body, thereby covering the body. The pinhole is blocked on the trajectory of the needle, so that the needle that is trying to extend will be blocked by the nose.
自由状态下的凸头遮盖住过针孔。The nose in the free state covers the pinhole.
撤针到位后，失去针管阻挡的夹片体在弹性收缩套的弹力作用下，与支撑体弹性触压连接。After the needle is withdrawn, the clip body that has lost the needle tube is elastically contacted with the support body under the elastic force of the elastic shrink sleeve.
支撑体是一种夹片体，撤针到位后，失去针管阻挡的夹片体在弹性收缩套的弹力作用下，与支撑体弹性触压连接。The support body is a clip body. After the needle is withdrawn, the clip body that has lost the needle tube is elastically contacted with the support body under the elastic force of the elastic shrink sleeve.
这样，在弹性收缩管的弹力作用下，两个相对分布的夹片体向过针孔中心方向收缩并直至压触在一起。Thus, under the elastic force of the elastic shrink tube, the two oppositely distributed clip bodies contract toward the center of the needle hole until they are pressed together.
弹性收缩管的尾端或者与夹片体的尾端平齐或者长过夹片体的尾端。The tail end of the elastic shrink tube is either flush with the tail end of the clip body or longer than the tail end of the clip body.
综上所述，本发明相比现有技术具有如下优点：防止针尖穿出的构造不易失灵，可有效防止针尖穿出，同时又易于操作组装，且结构又较简单。In summary, the present invention has the following advantages over the prior art: the structure for preventing the needle tip from coming out is not easy to malfunction, the needle tip can be effectively prevented from being worn out, and the assembly is easy to operate, and the structure is simple.
图1是现有技术中一种具有防止针尖穿出装置的留置针的结构示意图；1 is a schematic view showing the structure of an indwelling needle having a needle tip preventing device in the prior art;
图2是现有技术中一种具有防止针尖穿出装置的留置针在撤针到位后状态的结构示意图；2 is a schematic structural view of a state in which an indwelling needle having a needle tip penetrating device is prevented from being in a position after the needle is in place in the prior art;
图3是具有本发明实施例一所述的夹片式防止针尖穿出装置的留置针的结构示意图；3 is a schematic structural view of an indwelling needle having a clip-type tip preventing device according to the first embodiment of the present invention;
图4是本发明实施例一所述一种夹片式防止针尖穿出的装置的结构示意图；4 is a schematic structural view of a device for preventing a needle tip from penetrating according to a first embodiment of the present invention;
图5是本发明最佳实施例所述一种夹片式防止针尖穿出的装置的结构示意图；5 is a schematic structural view of a clip-type device for preventing a needle tip from penetrating according to a preferred embodiment of the present invention;
图6是具有本发明最佳实施例所述的夹片式防止针尖穿出装置的留置针的结构示意图；Figure 6 is a schematic view showing the structure of the indwelling needle of the clip-type tip preventing device according to the preferred embodiment of the present invention;
图7是具有本发明所述一种夹片式防止针尖穿出装置的留置针在撤针到位后状态的结构示意图；Figure 7 is a schematic view showing the structure of the indwelling needle having the clip-type tip preventing device of the present invention after the needle is withdrawn;
下面结合附图对本发明进行更详尽的描述。The invention will now be described in greater detail with reference to the drawings.
实施例一：Embodiment 1:
参照图3、图4和图7，一种夹片式防止针尖穿出的装置，此装置设置在留置针中，留置针中具有连接导管组件和针管组件的连接头，该连接头与针管组件中的收纳套或固定连接或一体构造，夹片式防止针尖穿出的装置包括一种夹片2.5，夹片2.5包括本体2.5.1和夹片体2.5.3，本体2.5.1固定在连接头后端部，本体2.5.1上贯穿有穿接针管的过针孔2.5.2，夹片体2.5.3一端固定在本体2.5.1上，另一端沿针管轴向向后延伸而悬伸，悬伸的端部向针孔中心方向突凸有凸头，自由状态下的凸头遮盖住过针孔2.5.2。本体2.5.1是一种圆盘体，凹设在连接头2.3后端部的对应凹槽中并固接。连接头2.3后端部的对应凹槽向后延伸，夹片体2.5.3含装在此凹槽中。Referring to Figures 3, 4 and 7, a clip-on device for preventing the tip of the needle from being inserted out is provided in the indwelling needle having a connector for connecting the catheter assembly and the needle cannula assembly, the connector and the needle cannula assembly The storage sleeve or the fixed connection or the integral structure, the clip-type device for preventing the needle tip from coming out comprises a clip 2.5, the clip 2.5 includes the body 2.5.1 and the clip body 2.5.3, and the body 2.5.1 is fixed at the connection. The rear end portion of the head has a needle hole 2.5.2 through which the needle tube is inserted. The one end of the clip body 2.5.3 is fixed on the body 2.5.1, and the other end extends rearward along the axial direction of the needle tube and overhangs. The overhanging end protrudes from the center of the pinhole with a convex head, and the convex head in the free state covers the needle hole 2.5.2. The body 2.5.1 is a disc body recessed in a corresponding groove at the rear end of the joint head 2.3 and fixed. The corresponding groove of the rear end portion of the connector head 2.3 extends rearward, and the clip body 2.5.3 is contained in the groove.
本实施例未述部分与现有技术相同。The parts not described in this embodiment are the same as those in the prior art.
最佳实施例：Best embodiment:
参照图5-图7，一种夹片式防止针尖穿出的装置，此装置设置在留置针中，留置针中具有连接导管组件和针管组件的连接头，该连接头与针管组件中的收纳套或固定连接或一体构造。夹片式防止针尖穿出的装置包括一种夹片2.5和一种弹性收缩管2.6，夹片包括本体2.5.1、夹片体2.5.3和支撑体2.5.4，本体2.5.1固定在连接头2.3后端部，本体2.5.1上贯穿有穿接针管的过针孔2.5.2，夹片体2.5.3一端固定在本体2.5.1上，另一端沿针管轴向向后延伸而悬伸，支撑体2.5.4与夹片体2.5.3相对分布，夹片体2.5.3和支撑体2.5.4分别位于过针孔2.5.2中心线的两侧，弹性收缩管2.6套设在夹片体2.5.3和支撑体2.5.4的外侧面上。本体2.5.1是一种圆盘体，凹设在连接头2.3后端部的对应凹槽中并固接。连接头后端部的对应凹 槽向后延伸，夹片体2.5.3、支撑体2.5.4以及弹性收缩管2.6均含装在此凹槽中。夹片体2.5.3悬伸的端部向过针孔中心方向突凸有凸头，自由状态下的凸头遮盖住过针孔2.5.2。撤针到位后，失去针管阻挡的夹片体2.5.3在弹性收缩管2.6的弹力作用下，与支撑体2.5.4弹性触压连接。弹性收缩管2.6的尾端或者与夹片体2.5.3的尾端平齐或者长过夹片体2.5.3的尾端。Referring to Figures 5-7, there is a clip-type device for preventing the tip of the needle from coming out. The device is disposed in the indwelling needle, and the indwelling needle has a connector connecting the catheter assembly and the needle tube assembly, and the connector is accommodated in the needle tube assembly. Set or fixed connection or integral construction. The clip-type device for preventing the tip from penetrating includes a clip 2.5 and an elastic shrink tube 2.6. The clip includes a body 2.5.1, a clip body 2.5.3 and a support body 2.5.4, and the body 2.5.1 is fixed at The rear end of the connecting head 2.3, the main body 2.5.1 has a through-hole 2.5.2 for inserting the needle tube, and the end of the clip body 2.5.3 is fixed on the body 2.5.1, and the other end extends backward along the axial direction of the needle tube. Overhang, the support body 2.5.4 is relatively distributed with the clip body 2.5.3, the clip body 2.5.3 and the support body 2.5.4 are respectively located on both sides of the center line of the needle hole 2.5.2, and the elastic shrink tube 2.6 is set. On the outer side of the clip body 2.5.3 and the support body 2.5.4. The body 2.5.1 is a disc body recessed in a corresponding groove at the rear end of the joint head 2.3 and fixed. The corresponding recess of the rear end of the connector extends rearwardly, and the clip body 2.5.3, the support body 2.5.4, and the elastic shrink tube 2.6 are all contained in the recess. The overhanging end of the clip body 2.5.3 protrudes from the center of the pinhole with a convex head, and the convex head in the free state covers the needle hole 2.5.2. After the needle is withdrawn, the clip body 2.5.3, which has lost the needle tube, is elastically contacted with the support body 2.5.4 under the elastic force of the elastic shrink tube 2.6. The tail end of the elastic shrink tube 2.6 is either flush with the tail end of the clip body 2.5.3 or longer than the tail end of the clip body 2.5.3.
撤针状态如图5所示，留置针穿针使用后撤针，逐渐将针管收纳进伸缩收纳套内，当针管一旦与夹片体2.5.3脱离，夹片体2.5.3在弹性收缩管弹性恢复收紧力作用下迅速合拢，夹片体2.5.3顶部端面的凸头遮蔽本体2.5.1以及连接头上的过针孔2.5.2，针管再回穿就不会穿出了。The needle withdrawal state is shown in Figure 5. The indwelling needle is used after the needle is removed, and the needle tube is gradually stored into the telescopic storage sleeve. When the needle tube is separated from the clip body 2.5.3, the clip body 2.5.3 is in the elastic shrink tube. The elastic recovery tightening force is quickly closed, and the convex end of the clip body 2.5.3 is shielded from the body 2.5.1 and the over-needle hole 2.5.2 on the connector, and the needle tube will not be worn back.
本实施例未述部分与现有技术相同。The parts not described in this embodiment are the same as those in the prior art.
Claims (9)
- 一种夹片式防止针尖穿出的装置，此装置设置在留置针中，留置针中具有连接导管组件和针管组件的连接头，该连接头与针管组件中的收纳套或固定连接或一体构造，其特征在于，包括一种夹片，夹片包括本体和夹片体，本体固定在连接头后端部，本体上贯穿有穿接针管的过针孔，夹片体一端固定在本体上，另一端沿针管轴向向后延伸而悬伸，悬伸的端部向针孔中心方向突凸有凸头，自由状态下的凸头遮盖住过针孔。A clip-type device for preventing the tip of the needle from coming out, the device being disposed in the indwelling needle, wherein the indwelling needle has a connector connecting the catheter assembly and the needle tube assembly, and the connector is fixedly connected or integrated with the storage sleeve in the needle tube assembly The utility model is characterized in that it comprises a clip, the clip comprises a body and a clip body, the body is fixed at the rear end of the joint head, and the body has a needle hole through which the needle tube is inserted, and one end of the clip body is fixed on the body. The other end extends rearward along the axial direction of the needle tube, and the overhanging end protrudes from the center of the pinhole with a convex head, and the convex head in the free state covers the needle hole.
- 一种夹片式防止针尖穿出的装置，此装置设置在留置针中，留置针中具有连接导管组件和针管组件的连接头，该连接头与针管组件中的收纳套或固定连接或一体构造，其特征在于，包括一种夹片和一种弹性收缩管，夹片包括本体、夹片体和支撑体，本体固定在连接头后端部，本体上贯穿有穿接针管的过针孔，夹片体一端固定在本体上，另一端沿针管轴向向后延伸而悬伸，支撑体与夹片体相对分布，夹片体和支撑体分别位于过针孔中心线的两侧，弹性收缩管套设在夹片体和支撑体的外侧面上。A clip-type device for preventing the tip of the needle from coming out, the device being disposed in the indwelling needle, wherein the indwelling needle has a connector connecting the catheter assembly and the needle tube assembly, and the connector is fixedly connected or integrated with the storage sleeve in the needle tube assembly The utility model is characterized in that it comprises a clip and an elastic shrink tube, the clip comprises a body, a clip body and a support body, wherein the body is fixed at a rear end portion of the joint head, and the body has a needle hole through which the needle tube is inserted. One end of the clip body is fixed on the body, the other end extends rearward along the axial direction of the needle tube, and the support body and the clip body are relatively distributed. The clip body and the support body are respectively located on both sides of the center line of the needle insertion hole, and the elastic contraction The sleeve is sleeved on the outer side of the clip body and the support body.
- 根据权利要求1或2所述的一种夹片式防止针尖穿出的装置，其特征在于，本体是一种圆盘体，凹设在连接头后端部的对应凹槽中并固接。A clip-type device for preventing tipping out of a clip according to claim 1 or 2, wherein the body is a disc body recessed in a corresponding recess in the rear end portion of the connector and fixed.
- 根据权利要求3所述的一种夹片式防止针尖穿出的装置，其特征在于，连接头后端部的对应凹槽向后延伸，夹片体、支撑体以及弹性收缩管均含装在此凹槽中。A clip-type device for preventing the tip of the needle according to claim 3, wherein the corresponding groove of the rear end portion of the connector extends rearward, and the clip body, the support body and the elastic shrink tube are respectively mounted on In this groove.
- 根据权利要求2所述的一种夹片式防止针尖穿出的装置，其特征在于，夹片体悬伸的端部向过针孔中心方向突凸有凸头。A clip-type device for preventing the tip of the needle according to claim 2, wherein the overhanging end portion of the clip body protrudes from the center of the pinhole with a projection.
- 根据权利要求5所述的一种夹片式防止针尖穿出的装置，其特征在于，自由状态下的凸头遮盖住过针孔。A clip-type device for preventing tipping out of a clip according to claim 5, wherein the tab in the free state covers the pinhole.
- 根据权利要求2所述的一种夹片式防止针尖穿出的装置，其特征在于，撤针到位后，失去针管阻挡的夹片体在弹性收缩套的弹力作用下，与支撑体弹性触压连接。The device for preventing the tip of the needle from penetrating according to claim 2, wherein after the needle is withdrawn, the clip body that has lost the needle tube is elastically pressed against the support body under the elastic force of the elastic shrink sleeve. connection.
- 根据权利要求2所述的一种夹片式防止针尖穿出的装置，其特征在于，支撑体是一种夹片体，撤针到位后，失去针管阻挡的夹片体在弹性收缩套的弹力作用下，与支撑体弹性触压连接。The device for preventing the tip of the needle from penetrating according to claim 2, wherein the support body is a clip body, and after the needle is withdrawn, the elastic force of the clip body of the elastic tube is lost. Under the action, it is elastically connected with the support body.
- 根据权利要求2所述的一种夹片式防止针尖穿出的装置，其特征在于，弹性收缩管的尾端或者与夹片体的尾端平齐或者长过夹片体的尾端。A clip-type device for preventing needle tip penetration according to claim 2, wherein the tail end of the elastic shrink tube is either flush with the tail end of the clip body or longer than the tail end of the clip body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/072829 WO2019140550A1 (en) | 2018-01-16 | 2018-01-16 | Clip-type device for preventing exposure of needle tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/072829 WO2019140550A1 (en) | 2018-01-16 | 2018-01-16 | Clip-type device for preventing exposure of needle tip |
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| Publication Number | Publication Date |
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| WO2019140550A1 true WO2019140550A1 (en) | 2019-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2018/072829 WO2019140550A1 (en) | 2018-01-16 | 2018-01-16 | Clip-type device for preventing exposure of needle tip |
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| US5092846A (en) * | 1989-11-07 | 1992-03-03 | Sumitomo Bakelite Company Limited | Introducer for medical tube |
| CN101274116A (en) * | 2007-03-27 | 2008-10-01 | 尼普洛株式会社 | Indwelling needle assembly and protector |
| CN201101778Y (en) * | 2007-07-25 | 2008-08-20 | 钱良 | Medical needle puncture wound preventing device |
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