CN104922762B - One kind has sleeved remaining needle - Google Patents
One kind has sleeved remaining needle Download PDFInfo
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- CN104922762B CN104922762B CN201510352653.0A CN201510352653A CN104922762B CN 104922762 B CN104922762 B CN 104922762B CN 201510352653 A CN201510352653 A CN 201510352653A CN 104922762 B CN104922762 B CN 104922762B
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Abstract
Description
技术领域technical field
本发明涉及一种留置针，属于医疗器械技术领域。The invention relates to an indwelling needle and belongs to the technical field of medical instruments.
背景技术Background technique
现有的留置针一般包括留置软管、留置针座、延长管座、连接于留置针座与延长管座之间的延长软管、装置于延长软管上的止液夹，而现有的止液夹一般包括夹座、一体装置于夹座上的夹片，夹座穿置于延长软管上，通过夹片与夹座的配合可将延长软管夹紧形成止液。但由于止液夹活动地装置于延长管上，在输液完毕和止液后的过程中，止液夹容易在留置针座上摆动，导致延长软管内的液体产生虹吸作用而将血管内血液回吸到留置软管内，造成血液回流而形成血栓，严重影响留置针的使用时间，因此现有的留置针一般只能使用1-2天就因为血栓的形成而必须将留置针拔除，更换新的留置针。特别是由于现有的止液夹在夹紧延长软管的过程中由于在止液夹的夹片松开后的瞬间因软管反弹导致夹紧的延长软管会有一个回弹，使原夹紧的延长软管形成一个弹性反弹而导致血液回流到留置软管内，造成血液回流而形成血栓，影响留置针的使用性能。同时由于留置软管的尖端是开放的，随病人呼吸和心跳变化带来的压力波动也会出现回血以及血小板和凝血物质进入到留置软管内造成凝血堵管的现象。Existing indwelling needles generally include an indwelling hose, an indwelling needle base, an extension tube base, an extension hose connected between the indwelling needle base and the extension tube base, and a liquid stop clip installed on the extension hose. The liquid stop clamp generally includes a clamp seat and a clip piece integrated on the clamp seat. The clamp seat is placed on the extension hose, and the extension hose can be clamped to form a liquid stop through the cooperation of the clip piece and the clamp seat. However, since the liquid stop clip is movably installed on the extension tube, the stop liquid clip is easy to swing on the indwelling needle seat during the process of completing the infusion and stopping the liquid, causing the liquid in the extension tube to produce a siphon effect and draw the blood in the blood vessel. It is sucked back into the indwelling hose, causing the blood to flow back and form a thrombus, which seriously affects the use time of the indwelling needle. Therefore, the existing indwelling needle can only be used for 1-2 days, and the indwelling needle must be pulled out and replaced due to the formation of thrombus. New indwelling needle. In particular, due to the rebound of the clamped extension hose due to the rebound of the hose at the moment after the clip of the liquid stop clamp is released in the process of clamping the extension hose of the existing liquid stop clamp, the original The clamped extension hose forms an elastic rebound and causes the blood to flow back into the indwelling hose, causing the blood to flow back and form a thrombus, which affects the performance of the indwelling needle. At the same time, because the tip of the indwelling hose is open, the pressure fluctuations brought about by the patient's breathing and heartbeat changes will also cause blood return and platelets and coagulation substances to enter the indwelling hose to cause coagulation and blockage.
发明内容Contents of the invention
本发明的目的在于针对上述问题的存在和不足，提供一种保证止液夹不会带动止液夹与留置针座间的延长软管的弯曲或反折，避免延长软管内的液体产生虹吸作用而将血管内血液回吸到留置软管内，造成血液回流而形成血栓的留置针。The purpose of the present invention is to address the existence and shortcomings of the above problems, to provide a method to ensure that the liquid stop clip will not drive the extension hose between the liquid stop clip and the indwelling needle seat to bend or bend back, and avoid siphoning of the liquid in the extension hose The indwelling needle acts to suck the blood in the blood vessel back into the indwelling tube, causing the blood to flow back and form a thrombus.
在此基础上，本发明的进一步目的在于提供一种结构简单、止液效果稳定可靠、可有效避免血栓形成的具有弹性触头的留置针。On this basis, a further object of the present invention is to provide an indwelling needle with elastic contacts that has a simple structure, stable and reliable hemostatic effect, and can effectively avoid thrombus formation.
本发明的技术方案是这样实现的：Technical scheme of the present invention is realized like this:
一种具有套筒的留置针，包括留置软管、留置针座、延长管座、连接于留置针座与延长管座之间的延长软管、装置于延长软管上的止液夹，其特征在于上述止液夹的一端设有可固定于留置针座侧壁进液口上的套筒，止液夹通过该套筒硬连接固定装置于留置针座的进液口上，避免因止液夹摆动而造成延长软管的摆动和扭曲现象的出现。An indwelling needle with a sleeve, comprising an indwelling hose, an indwelling needle base, an extension tube base, an extension hose connected between the indwelling needle base and the extension tube base, and a liquid stop clip installed on the extension hose. It is characterized in that one end of the liquid stop clip is provided with a sleeve that can be fixed on the liquid inlet of the side wall of the indwelling needle seat, and the liquid stop clip is hard-connected and fixed to the liquid inlet of the indwelling needle seat through the sleeve, so as to avoid the leakage caused by the liquid stop clip. The extension hose swings and twists due to swinging.
此时，为进一步提高本发明所述的应用范围和实用性，使本发明在操作过程中可加大医护人员的操作空间和减少医护人员触碰延长管的几率，避免由于延长软管的摆动所造成的血液虹吸现象。并方便医护人员单手操作，同时左右手操作也同样便利，解决了原来左手为常用手的医护人员，打开夹体用左手难以打开的缺点， 同时也可减少止液夹因固定在留置针座上导致的异物感，使其角度与留置针Y形座形成一个三角体，减小止液夹飘出范围，可使手在活动时减少碰撞止液夹触使Y形座的移动的机会，导致的留置软管在血管内反折的机会。上述套筒设置于止液夹上位于止液夹开口端的反方向端位置。At this time, in order to further improve the scope of application and practicability of the present invention, the present invention can increase the operating space of the medical staff and reduce the chance of the medical staff touching the extension tube during the operation, so as to avoid the swing of the extension tube. The blood siphon phenomenon caused. It is also convenient for medical staff to operate with one hand. At the same time, it is also convenient to operate with left and right hands. It solves the problem that it is difficult for medical staff who use their left hand to open the clip body with their left hand. The resulting foreign body sensation makes its angle form a triangle with the Y-shaped seat of the indwelling needle, which reduces the floating range of the liquid-stopping clamp, and reduces the chance of the hand moving when it collides with the liquid-stopping clamp and moves the Y-shaped seat, resulting in The chance of the indwelling hose being bent in the blood vessel. The above-mentioned sleeve is arranged on the end position of the liquid stop clip opposite to the opening end of the liquid stop clip.
为实现本发明的进一步目的，保证本发明止液效果稳定可靠、可有效避免血栓形成，上述止液夹压触部分的上触头、下触头中至少有一个触头是采用不同于止液夹硬质本体的可对延长软管形成持续正压的弹性触头。或者是上述止液夹的夹片与夹座之间位于止液夹压触部分的上下触头前部处还设有至少一个具有弹性的具有较大夹紧面积的可对延长软管形成持续正压的弹性压紧装置。In order to achieve the further purpose of the present invention, to ensure that the liquid-stopping effect of the present invention is stable and reliable, and to effectively avoid thrombus formation, at least one of the upper and lower contacts of the pressing part of the above-mentioned liquid-stopping clamp adopts a method different from the liquid-stopping method. The elastic contact clamping the hard body can form a continuous positive pressure on the extension hose. Or there is at least one elastic and large clamping area at the front of the upper and lower contacts of the liquid stop clip between the clip and the clamp seat, which can form a continuous connection with the extended hose. Positive elastic compression device.
本发明由于采用具有套筒的止液夹结构，使止液夹硬连接固定于留置针座上，避免因止液夹摆动而造成延长软管的摆动和扭曲现象的出现，有效避免了留置针座端延长管摆动和扭曲造成虹吸作用使血液回流到留置针座内。特别是具有持续正压的弹性触头或弹性压紧装置的增加，既使止液夹夹片能可靠地夹紧延长软管形成止液，又利用持续正压的弹性触头或弹性压紧装置可持续挤压留置针座端延长软管使之发生形变，挤压管内液体进入留置软管内，将压力有效传导到留置软管中形成正压，有效的避免了止液夹在操作瞬间因软管反弹导致的血液虹吸造成的血液回流。在留置针留置期间，又利用弹性触头或弹性压紧装置对延长软管的持续正压，使留置软管内不会因静脉压波动产生血液回流，避免了血液回流到留置软管中，达到防血栓的目的并延长留置针的使用时间到7-10天，减少病人因反复穿刺带来的痛苦和医疗费用的增加。特别地，止液夹的套筒结构和弹性触头或弹性压紧装置的相互作用使留置针座内的液体形成一个持续正压，进一步避免了血液的回流，达到防血栓的目的，且本发明结构简单，制作容易实用性强。Because the present invention adopts the structure of the liquid-stopping clip with the sleeve, the liquid-stopping clip is hard-connected and fixed on the indwelling needle seat, avoiding the phenomenon of swinging and twisting of the extended hose caused by the swing of the liquid-stopping clip, and effectively avoiding the indwelling needle The seat-end extension tube swings and twists to cause a siphon effect to return blood to the indwelling needle seat. In particular, the addition of elastic contacts or elastic compression devices with continuous positive pressure not only enables the clips of the liquid stop clamp to reliably clamp the extended hose to form a liquid stop, but also utilizes the elastic contacts or elastic compression devices with continuous positive pressure The device can continuously squeeze the extended hose at the end of the indwelling needle hub to make it deform, and the liquid in the squeeze tube enters the indwelling hose, effectively transmitting the pressure to the indwelling hose to form a positive pressure, effectively avoiding the liquid stop clamp at the moment of operation Backflow of blood due to blood siphoning caused by hose bounce. During the indwelling needle indwelling period, the continuous positive pressure of the elastic contact or the elastic compression device on the extension hose prevents blood backflow in the indwelling hose due to venous pressure fluctuations, avoiding blood backflow into the indwelling hose, To achieve the purpose of anti-thrombosis and prolong the use time of the indwelling needle to 7-10 days, reduce the pain caused by repeated puncture and the increase of medical expenses for patients. In particular, the interaction between the sleeve structure of the liquid stop clip and the elastic contactor or the elastic pressing device makes the liquid in the indwelling needle seat form a continuous positive pressure, which further avoids the backflow of blood and achieves the purpose of preventing thrombus. The invention has the advantages of simple structure, easy manufacture and strong practicability.
下面结合附图对本发明作进一步的说明。The present invention will be further described below in conjunction with the accompanying drawings.
附图说明Description of drawings
图1为本发明第一实施例的止液夹打开状态结构示意图；Fig. 1 is a schematic diagram of the structure of the open state of the liquid stop clip according to the first embodiment of the present invention;
图2为本发明第一实施例的止液夹夹紧状态结构示意图。Fig. 2 is a schematic structural diagram of the clamped state of the liquid stop clip according to the first embodiment of the present invention.
图3为本发明第二实施例的止液夹打开状态结构示意图。Fig. 3 is a schematic structural diagram of the open state of the liquid stop clip according to the second embodiment of the present invention.
图4为本发明第二实施例的止液夹夹紧状态结构示意图。Fig. 4 is a schematic structural diagram of the clamped state of the liquid stop clamp according to the second embodiment of the present invention.
图5为本发明第三实施例的止液夹打开状态结构示意图。Fig. 5 is a schematic diagram of the structure of the liquid stop clip in an open state according to the third embodiment of the present invention.
图6为本发明第三实施例的止液夹夹紧状态结构示意图。Fig. 6 is a schematic structural diagram of the clamped state of the liquid stop clamp according to the third embodiment of the present invention.
图7为本发明第四实施例的止液夹打开状态结构示意图。Fig. 7 is a schematic structural view of the open state of the liquid stop clip according to the fourth embodiment of the present invention.
图8为本发明第四实施例的止液夹夹紧状态结构示意图。Fig. 8 is a schematic structural diagram of the clamped state of the liquid stop clamp according to the fourth embodiment of the present invention.
图9为本发明第五实施例的止液夹打开状态结构示意图。Fig. 9 is a schematic diagram of the structure of the liquid stop clamp in the open state according to the fifth embodiment of the present invention.
图10为本发明第五实施例的止液夹夹紧状态结构示意图。Fig. 10 is a schematic structural diagram of the clamped state of the liquid stop clamp according to the fifth embodiment of the present invention.
图11为本发明第六实施例的止液夹打开状态结构示意图。Fig. 11 is a schematic diagram of the structure of the open state of the liquid stop clip according to the sixth embodiment of the present invention.
图12为本发明第六实施例的止液夹夹紧状态结构示意图。Fig. 12 is a schematic structural diagram of the clamped state of the liquid stop clamp according to the sixth embodiment of the present invention.
图13为本发明第七实施例的止液夹打开状态结构示意图。Fig. 13 is a schematic diagram of the structure of the liquid stop clamp in an open state according to the seventh embodiment of the present invention.
图14为本发明第七实施例的止液夹夹紧状态结构示意图。Fig. 14 is a schematic structural diagram of the clamped state of the liquid stop clamp according to the seventh embodiment of the present invention.
具体实施方式Detailed ways
如图1至图14所示，本发明所述的一种具有套筒的留置针，包括留置软管11、留置针座1、延长管座4、连接于留置针座1与延长管座4之间的延长软管2、装置于延长软管2上的止液夹，其特征在于上述止液夹3的一端设有可固定于留置针座1侧壁进液口上的套筒35，止液夹3通过该套筒35硬连接固定装置于留置针座1的进液口上，避免因止液夹摆动而造成延长软管2的摆动和扭曲现象的出现。As shown in Figures 1 to 14, an indwelling needle with a sleeve according to the present invention includes an indwelling hose 11, an indwelling needle base 1, an extension tube base 4, and is connected to the indwelling needle base 1 and the extension tube base 4 The extension hose 2 between them and the liquid-stop clamp installed on the extension hose 2 are characterized in that one end of the above-mentioned liquid-stop clamp 3 is provided with a sleeve 35 that can be fixed on the liquid inlet of the side wall of the indwelling needle holder 1, and the stop The liquid clamp 3 is hard-connected and fixed on the liquid inlet of the indwelling needle hub 1 through the sleeve 35, so as to avoid the phenomenon of swinging and twisting of the extended hose 2 caused by the swing of the liquid stop clamp.
此时，为进一步提高本发明所述的应用范围和实用性，使本发明在操作过程中可加大医护人员的操作空间和减少医护人员触碰延长管的几率，避免由于延长软管2的摆动所造成的血液虹吸现象。并方便医护人员单手操作，同时左右手操作也同样便利，解决了原来左手为常用手的医护人员，打开夹体用左手难以打开的缺点， 同时也可减少止液夹3因固定在留置针座1上导致的异物感，使其角度与留置针Y形座形成一个三角体，减小止液夹3飘出范围，可使手在活动时减少碰撞止液夹3触使Y形座的移动的机会，导致的留置软管11在血管内反折的机会。上述套筒35设置于止液夹3上位于止液夹3开口端33的反方向端位置。At this time, in order to further improve the scope of application and practicability of the present invention, the present invention can increase the operating space of the medical staff and reduce the chance of the medical staff touching the extension tube during the operation, so as to avoid the extension tube 2 The blood siphon phenomenon caused by the swing. It is also convenient for medical staff to operate with one hand, and at the same time, it is also convenient to operate with left and right hands. It solves the problem that it is difficult for medical staff who use their left hand to open the clip body with their left hand. The foreign body sensation caused by 1 makes its angle form a triangle with the Y-shaped seat of the indwelling needle, which reduces the floating range of the liquid stop clip 3 and reduces the collision of the liquid stop clip 3 when the hand is moving. The movement of the Y-shaped seat The chance of causing the indwelling hose 11 to bend in the blood vessel. The above-mentioned sleeve 35 is disposed on the liquid stop clip 3 at the end opposite to the opening end 33 of the liquid stop clip 3 .
为实现本发明的进一步目的，保证本发明止液效果稳定可靠、可有效避免血栓形成，本发明的实施方案一是上述止液夹3压触部分的上触头31、下触头32中至少有一个触头是采用不同于止液夹3硬质本体的可对延长软管2形成持续正压的弹性触头。此时既可以是上述止液夹3压触部分的上触头31、下触头32是具有弹性的可对延长软管2形成持续正压的点状弹性触头。也可以是上述止液夹3压触部分的上触头31、下触头31是具有弹性的具有较大夹紧面积的可对延长软管2形成持续正压的面状弹性触头。本发明的实施方案二是上述止液夹3的夹片31与夹座31之间位于止液夹3压触部分的上下触头前部处还设有至少一个具有弹性的具有较大夹紧面积的可对延长软管1形成持续正压的弹性压紧装置34。此时既可以是述的弹性压紧装置34为与止液夹3压触部分的上触头一体形成于夹片31上并位于夹片31与夹座32之间的呈横向U形的弹性夹紧体。也可以是上述的弹性压紧装置34为一体形成于夹片31上并位于夹片31与夹座32之间的竖向弹性体。也可以是上述的弹性压紧装置34为一体形成于夹片31上并位于夹片31与夹座32之间的中空柱体和装置于该中空柱体内的弹簧的结合体。 本发明由于采用具有套筒35的止液夹3结构，使止液夹3硬连接固定于留置针座1上，避免因止液夹3摆动而造成延长软管2的摆动和扭曲现象的出现，有效避免了留置针座1端延长软管2摆动和扭曲造成虹吸作用使血液回流到留置针座1内。特别是具有持续正压的弹性触头或弹性压紧装置的增加，既使止液夹3夹片31能可靠地夹紧延长软管2形成止液，又利用持续正压的弹性触头或弹性压紧装置可持续挤压留置针座1端延长软管2使之发生形变，挤压管内液体进入留置软管11内，将压力有效传导到留置软管11中形成正压，有效的避免了止液夹3在操作瞬间因软管反弹导致的血液虹吸造成的血液回流。在留置针留置期间，又利用弹性触头或弹性压紧装置对延长软管2的持续正压，使留置软管11内不会因静脉压波动产生血液回流，避免了血液回流到留置软管11中，达到防血栓的目的并延长留置针的使用时间到7-10天，减少病人因反复穿刺带来的痛苦和医疗费用的增加。特别地，止液夹3的套筒35结构和弹性触头或弹性压紧装置的相互作用使留置针座1内的液体形成一个持续正压，进一步避免了血液的回流，达到防血栓的目的，且本发明结构简单，制作容易实用性强。In order to achieve the further purpose of the present invention, ensure that the liquid-stopping effect of the present invention is stable and reliable, and can effectively avoid thrombus formation, the first embodiment of the present invention is that at least There is a contact that adopts an elastic contact that is different from the hard body of the liquid stop clip 3 and can form a continuous positive pressure on the extension hose 2 . At this time, the upper contact 31 and the lower contact 32 of the pressure-contacting part of the above-mentioned liquid stop clip 3 can be elastic point-shaped elastic contacts that can form continuous positive pressure on the extension hose 2 . It may also be that the upper contact 31 and the lower contact 31 of the pressing part of the liquid stop clip 3 are elastic planar elastic contacts with a large clamping area that can form continuous positive pressure on the extension hose 2 . Embodiment 2 of the present invention is that there is at least one elastic clamp with a relatively large clamping force at the front of the upper and lower contacts of the pressure contact part of the liquid stop clamp 3 between the clamp piece 31 and the clamp seat 31 of the liquid stop clamp 3 . The elastic pressing device 34 that can form continuous positive pressure to extension hose 1 of the area. At this time, the elastic pressing device 34 can be said to be a transverse U-shaped elastic joint formed integrally with the upper contact of the pressure-contacting part of the liquid stop clip 3 on the clip 31 and located between the clip 31 and the clip seat 32 . Clamping body. The above-mentioned elastic pressing device 34 may also be a vertical elastic body integrally formed on the clamping piece 31 and located between the clamping piece 31 and the clamping seat 32 . The above-mentioned elastic pressing device 34 may also be a combination of a hollow cylinder integrally formed on the clamp piece 31 and located between the clamp piece 31 and the clamp seat 32 and a spring installed in the hollow cylinder. Because the present invention adopts the structure of the liquid-stopping clip 3 with the sleeve 35, the liquid-stopping clip 3 is hard-connected and fixed on the indwelling needle hub 1, so as to avoid the phenomenon of swinging and twisting of the extended hose 2 caused by the swinging of the liquid-stopping clip 3 , effectively avoiding the siphon effect caused by the extension hose 2 at the end of the indwelling needle base 1 from swinging and twisting so that the blood flows back into the indwelling needle base 1 . In particular, the addition of elastic contacts or elastic compression devices with continuous positive pressure not only enables the clip 31 of the liquid stop clip 3 to reliably clamp the extended hose 2 to form a liquid stop, but also utilizes the elastic contacts or elastic compression devices with continuous positive pressure. The elastic compression device can continuously squeeze the end of the indwelling needle seat 1 to extend the hose 2 to make it deformed, and the liquid in the squeeze tube enters the indwelling hose 11, and the pressure is effectively transmitted to the indwelling hose 11 to form a positive pressure, effectively avoiding The blood backflow caused by the blood siphon caused by the rebound of the flexible pipe at the moment of operation of the liquid stop clip 3 is prevented. During the indwelling needle indwelling period, the continuous positive pressure of the elastic contactor or the elastic compression device on the extension hose 2 prevents blood backflow in the indwelling hose 11 due to venous pressure fluctuations, avoiding blood backflow into the indwelling hose In 11, the purpose of anti-thrombosis is achieved and the use time of the indwelling needle is extended to 7-10 days, so as to reduce the pain caused by repeated puncture and the increase of medical expenses for patients. In particular, the interaction between the structure of the sleeve 35 of the liquid stop clip 3 and the elastic contacts or the elastic pressing device makes the liquid in the needle hub 1 form a continuous positive pressure, further avoiding the backflow of blood, and achieving the purpose of preventing thrombus , and the present invention is simple in structure, easy to manufacture and strong in practicability.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510352653.0A CN104922762B (en) | 2015-06-24 | 2015-06-24 | One kind has sleeved remaining needle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510352653.0A CN104922762B (en) | 2015-06-24 | 2015-06-24 | One kind has sleeved remaining needle |
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| CN104922762A CN104922762A (en) | 2015-09-23 |
| CN104922762B true CN104922762B (en) | 2018-05-01 |
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| CN201510352653.0A Active CN104922762B (en) | 2015-06-24 | 2015-06-24 | One kind has sleeved remaining needle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105854122B (en) * | 2016-06-08 | 2022-04-12 | 广东龙心医疗器械有限公司 | Anti-thrombus indwelling needle |
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| CN204208133U (en) * | 2014-10-21 | 2015-03-18 | 广东龙心医疗器械有限公司 | Liquid stopping clamp |
| CN204890807U (en) * | 2015-06-24 | 2015-12-23 | 湛江健力源医疗用品有限公司 | Keep somewhere needle with sleeve |
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| US20060015074A1 (en) * | 2002-11-04 | 2006-01-19 | Lynn Lawrence A | Catheter flushing fluid lock system and method |
| CN101035592A (en) * | 2004-07-16 | 2007-09-12 | 卡迪纳尔健康303公司 | Automatic clamp apparatus for IV infusion sets used in pump devices |
| CN202036607U (en) * | 2011-03-28 | 2011-11-16 | 浙江康德莱医疗器械股份有限公司 | Positive pressure fluid stopping clamp |
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| CN104922762A (en) | 2015-09-23 |
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Address after: No. 679 Guangyuan Road, Longtou Town, Potou District, Zhanjiang City, Guangdong Province, 524001 Patentee after: Zhanjiang Jianliyuan Medical Supplies Co.,Ltd. Address before: 524043 No. 26, Renmin Avenue Middle, Zhanjiang City, Guangdong Province Patentee before: ZHANJIANG JIANLIYUAN MEDICAL PRODUCTS Co.,Ltd. |