CN204723514U - A kind of remaining needle fixing device - Google Patents
A kind of remaining needle fixing device Download PDFInfo
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- CN204723514U CN204723514U CN201520335251.5U CN201520335251U CN204723514U CN 204723514 U CN204723514 U CN 204723514U CN 201520335251 U CN201520335251 U CN 201520335251U CN 204723514 U CN204723514 U CN 204723514U
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- cavity
- indwelling needle
- diameter cavity
- diameter
- rubber plug
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- 239000003814 drug Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000001802 infusion Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000010985 leather Substances 0.000 abstract 1
- 210000004204 blood vessel Anatomy 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
本实用新型公开了一种留置针固定装置，包括连接器和固定卡环；连接器的结构为：包括基座，基座内设置有空腔，空腔的一端设置内螺纹和中空导管；另一端设置有外螺纹；空腔内设置有圆柱状的橡胶塞，橡胶塞的一端与空腔过盈配合且伸出基座外，另一端固定连接有弹簧安装座；橡胶塞上半部分设置有药液流道，药液流道的侧壁上设置有通孔；固定卡环的结构为：包括弹性部件和连接部件；连接部件的一端设置有圆台，圆台上设置有滑块，该滑块通过压缩弹簧与圆台连接；弹性部件的一端设置有多个盲孔，盲孔内设置有环形槽，该环形槽的一侧设置有按压件。本实用新型能够有效固定留置针，而且输液皮条与留置针连接时无需使用钢针，使用安全。
The utility model discloses an indwelling needle fixing device, which comprises a connector and a fixing snap ring; the structure of the connector is: a base, a cavity is arranged in the base, and an internal thread and a hollow conduit are arranged at one end of the cavity; One end is provided with an external thread; the cavity is provided with a cylindrical rubber plug, one end of the rubber plug has an interference fit with the cavity and protrudes out of the base, and the other end is fixedly connected with a spring mounting seat; the upper part of the rubber plug is provided with a The liquid medicine flow channel is provided with a through hole on the side wall of the liquid medicine flow channel; the structure of the fixed snap ring is: including an elastic part and a connecting part; one end of the connecting part is provided with a round table, and a slider is provided on the round table The compression spring is connected with the round table; one end of the elastic part is provided with a plurality of blind holes, an annular groove is arranged in the blind hole, and a pressing piece is arranged on one side of the annular groove. The utility model can effectively fix the indwelling needle, and when the infusion leather strap is connected with the indwelling needle, no steel needle is needed, and the use is safe.
Description
技术领域 technical field
本实用新型属于医疗设备技术领域，具体涉及一种留置针固定装置。 The utility model belongs to the technical field of medical equipment, in particular to an indwelling needle fixing device.
背景技术 Background technique
留置针的核心组成部件包括可以留置在血管内的柔软的导管或套管，以及不锈钢的穿刺引导针芯，使用时将导管和针芯一起穿刺入血管内，当导管全部进入血管后，回撤出针芯，仅将柔软的导管留置在血管内从而进行输液治疗，而需要将接头部分固定与患者的手掌或输液的位置；现有技术众多采用胶带固定，其缺点在于：胶带固定不牢固，易脱落；胶带不透气，有些病人会出现过敏现象。 The core components of the indwelling needle include a soft catheter or cannula that can be indwelled in the blood vessel, and a stainless steel puncture guide core. When in use, the catheter and the needle core are punctured into the blood vessel together. When the catheter is completely inserted into the blood vessel, it is retracted. Only the soft catheter is left in the blood vessel to perform infusion therapy, and the joint part needs to be fixed to the patient's palm or the position of infusion; many existing technologies use adhesive tape for fixing, and its disadvantages are: the adhesive tape is not firmly fixed, Easy to fall off; the tape is airtight, and some patients may experience allergies.
实用新型内容 Utility model content
本实用新型要解决的技术问题是提供固定牢固的一种留置针固定装置。 The technical problem to be solved by the utility model is to provide an indwelling needle fixing device which is firmly fixed.
为解决上述技术问题，本实用新型采用的技术方案为：一种留置针固定装置，包括连接留置针与输液皮条的连接器、设置于连接器上的固定卡环； In order to solve the above technical problems, the technical solution adopted by the utility model is: an indwelling needle fixing device, including a connector connecting the indwelling needle and the infusion thong, and a fixing snap ring arranged on the connector;
所述的连接器的结构为：包括基座，基座内设置有空腔，该空腔包括靠近留置针的大直径空腔和设置于大直径空腔一侧的小直径空腔；大直径空腔的一端设置有与留置针针座连接的内螺纹，该端还设置有用于连接留置针的且与大直径空腔连通的中空导管；空腔内设置有圆柱状的橡胶塞，该橡胶塞的一端与小直径空腔过盈配合且伸出基座外，另一端设置在大直径空腔内，且固定连接有弹簧安装座；所述橡胶塞上半部分设置有药液流道，药液流道的侧壁上设置有通孔；所述橡胶塞通过压缩弹簧与弹簧安装座连接；所述小直径空腔外周的基座上设置有与输液皮条连接座的内螺纹连接的外螺纹；大直径空腔内设置有环形支架，环形支架的前端设置有外周与大直径空腔内壁连接的圆形薄膜，该圆形薄膜的外周能够与环形支架紧密贴合，圆形薄膜的外周上设置有十字切口； The structure of the connector is: including a base, a cavity is arranged in the base, and the cavity includes a large-diameter cavity close to the indwelling needle and a small-diameter cavity arranged on one side of the large-diameter cavity; the large-diameter One end of the cavity is provided with an internal thread connected with the needle seat of the indwelling needle, and the end is also provided with a hollow conduit for connecting the indwelling needle and communicating with the large-diameter cavity; a cylindrical rubber plug is provided in the cavity, and the rubber One end of the plug has an interference fit with the small-diameter cavity and extends out of the base, the other end is set in the large-diameter cavity, and is fixedly connected with a spring mounting seat; the upper part of the rubber plug is provided with a liquid medicine flow channel, The side wall of the liquid medicine flow channel is provided with a through hole; the rubber plug is connected with the spring mounting seat through a compression spring; the outer periphery of the small-diameter cavity is provided with an outer thread connected with the inner thread of the infusion thong connection seat. thread; the large-diameter cavity is provided with a ring-shaped support, and the front end of the ring-shaped support is provided with a circular film whose outer circumference is connected to the inner wall of the large-diameter cavity. There is a cross cut on it;
所述的固定卡环的结构为：包括弹性部件和与弹性部件铰接连接并且能够与弹性部件组成封闭的圆环的连接部件；所述的连接部件的一端设置有圆台，圆台上设置有滑块，该滑块通过压缩弹簧与圆台连接；所述弹性部件的一端设置有多个盲孔，盲孔内设置有环形槽，该环形槽的一侧设置有按压件。 The structure of the fixing snap ring is: including an elastic part and a connecting part that is hingedly connected with the elastic part and can form a closed ring with the elastic part; one end of the connecting part is provided with a circular platform, and a slider is provided on the circular platform , the slider is connected to the round platform through a compression spring; one end of the elastic component is provided with a plurality of blind holes, an annular groove is arranged in the blind hole, and a pressing piece is arranged on one side of the annular groove.
进一步地，所述的药液通道侧壁上沿周向均匀设置有4个通孔。 Further, four through holes are uniformly arranged on the side wall of the liquid medicine channel along the circumferential direction.
进一步地，所述弹性部件的一端设置有4-6个盲孔。 Further, one end of the elastic component is provided with 4-6 blind holes.
本实用新型的有益效果：本实用新型的留置针固定装置，既可以有效固定留置针，固定卡环可根据手腕的粗细方便的调节，通过固定装置上的连接器留置针能够直接与输液皮条的连接座连接，无需用钢针穿刺，橡胶塞能够堵住留置针座的空腔，防止穿刺留置针时血液回流。 Beneficial effects of the utility model: the indwelling needle fixing device of the utility model can effectively fix the indwelling needle, and the fixing clasp can be adjusted conveniently according to the thickness of the wrist, and the indwelling needle can be directly connected with the infusion thong through the connector on the fixing device The connecting seat is connected, no need to puncture with a steel needle, and the rubber stopper can block the cavity of the indwelling needle seat to prevent blood backflow when the indwelling needle is punctured.
附图说明 Description of drawings
图1为本实用新型的结构示意图。 Fig. 1 is the structural representation of the utility model.
图2为本实用新型的连接器的剖视图。 Fig. 2 is a sectional view of the connector of the present invention.
图3为圆形薄膜的结构示意图。 Fig. 3 is a schematic diagram of the structure of a circular thin film.
图4为本实用新型的固定卡环的结构示意图。 Fig. 4 is a structural schematic diagram of the fixing snap ring of the present invention.
图5为A的局部放大图。 Figure 5 is a partial enlarged view of A.
图6为B的局部放大图。 Figure 6 is a partial enlarged view of B.
具体实施方式 Detailed ways
下面结合附图对本实用新型的技术方案作详细说明。 Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail.
如图1-5所示的一种留置针固定装置，包括连接留置针与输液皮条的连接器10、设置于连接器10上的固定卡环30。 An indwelling needle fixing device as shown in FIGS. 1-5 includes a connector 10 connecting the indwelling needle and an infusion thong, and a fixing snap ring 30 disposed on the connector 10 .
连接器10的结构为：包括基座11，基座11内设置有空腔，该空腔包括靠近留置针的大直径空腔12和设置于大直径空腔12一侧的小直径空腔13；大直径空腔12的一端设置有与留置针的针座连接的内螺纹14，该端还设置有用于连接留置针的且与大直径空腔12连通的中空导管15；空腔内设置有圆柱状的橡胶塞16，该橡胶塞16的一端与小直径空腔13过盈配合且伸出基座11外，另一端设置在大直径空腔12内，且固定连接有弹簧安装座17；橡胶塞16上半部分设置有药液流道18，药液流道18的侧壁上设置有通孔19；橡胶塞16通过压缩弹簧20与弹簧安装座17连接；小直径空腔13外周的基座11上设置有与输液皮条连接座的内螺纹连接的外螺纹21；大直径空腔12内设置有环形支架22，环形支架22的前端设置有外周与大直径空腔12内壁连接的圆形薄膜23，该圆形薄膜23的外周能够与环形支架22紧密贴合，圆形薄膜23的外周上设置有十字切口24。 The structure of the connector 10 is: comprising a base 11, a cavity is arranged in the base 11, and the cavity includes a large-diameter cavity 12 close to the indwelling needle and a small-diameter cavity 13 arranged on one side of the large-diameter cavity 12 One end of the large-diameter cavity 12 is provided with an internal thread 14 connected to the needle seat of the indwelling needle, and the end is also provided with a hollow conduit 15 for connecting the indwelling needle and communicating with the large-diameter cavity 12; the cavity is provided with A cylindrical rubber plug 16, one end of the rubber plug 16 has an interference fit with the small-diameter cavity 13 and extends out of the base 11, and the other end is arranged in the large-diameter cavity 12, and is fixedly connected with a spring mounting seat 17; The upper part of the rubber plug 16 is provided with a liquid medicine flow channel 18, and the side wall of the liquid medicine flow channel 18 is provided with a through hole 19; the rubber plug 16 is connected with the spring mounting seat 17 through a compression spring 20; The base 11 is provided with an external thread 21 connected with the internal thread of the transfusion thong connection seat; an annular bracket 22 is arranged in the large-diameter cavity 12, and the front end of the annular bracket 22 is provided with a circle connecting the outer periphery and the inner wall of the large-diameter cavity 12 Shaped film 23, the outer periphery of the circular film 23 can be closely attached to the ring bracket 22, and the outer periphery of the circular film 23 is provided with a cross cut 24.
固定卡环30的结构为：包括弹性部件31和与弹性部件31铰接连接并且能够与弹性部件31组成封闭的圆环的连接部件32；连接部件32的一端设置有圆台33，圆台33上设置有滑块34，该滑块34通过压缩弹簧35与圆台33连接；弹性部件31的一端设置有多个盲孔36，盲孔36内设置有环形槽37，该环形槽37的一侧设置有按压件38。 The structure of fixed snap ring 30 is: comprise elastic part 31 and the connection part 32 that is hingedly connected with elastic part 31 and can form closed circle with elastic part 31; Slider 34, this slider 34 is connected with round table 33 by compression spring 35; One end of elastic part 31 is provided with a plurality of blind holes 36, is provided with annular groove 37 in blind hole 36, and one side of this annular groove 37 is provided with pressing Item 38.
锁紧扣件时，按压滑块34，将滑块34置于通过盲孔36进入环形槽37内，在压缩弹簧35的作用下滑块34卡于环形槽37内，打开扣件时，按下按压件38，按压件38挤压滑块34，使压缩弹簧35压缩，滑块34和圆台33可顺利的从盲孔36中退出。 When locking the fastener, press the slider 34, put the slider 34 into the annular groove 37 through the blind hole 36, the slider 34 is stuck in the annular groove 37 under the action of the compression spring 35, when opening the fastener, press The pressing piece 38 is lowered, and the pressing piece 38 squeezes the slide block 34 to compress the compression spring 35 , so that the slide block 34 and the round table 33 can be withdrawn from the blind hole 36 smoothly.
在本实施方式中，药液通道侧壁上沿周向均匀设置有4个通孔。 In this embodiment, four through holes are uniformly arranged on the side wall of the liquid medicine channel along the circumferential direction.
在本实施方式中，弹性部件的一端设置有4-6个盲孔。 In this embodiment, one end of the elastic component is provided with 4-6 blind holes.
以上显示和描述了本实用新型的基本原理和主要特征和本实用新型的优点。本行业的技术人员应该了解，本实用新型不受上述实施例的限制，上述实施例和说明书中描述的只是说明本实用新型的原理，在不脱离本实用新型精神和范围的前提下，本实用新型还会有各种变化和改进，这些变化和改进都落入要求保护的本实用新型范围内。本实用新型要求保护范围由所附的权利要求书及其等效物界定。 The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335251.5U CN204723514U (en) | 2015-05-22 | 2015-05-22 | A kind of remaining needle fixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335251.5U CN204723514U (en) | 2015-05-22 | 2015-05-22 | A kind of remaining needle fixing device |
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| Publication Number | Publication Date |
|---|---|
| CN204723514U true CN204723514U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520335251.5U Expired - Fee Related CN204723514U (en) | 2015-05-22 | 2015-05-22 | A kind of remaining needle fixing device |
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| Country | Link |
|---|---|
| CN (1) | CN204723514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-05-22 CN CN201520335251.5U patent/CN204723514U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110051898B (en) * | 2019-06-10 | 2024-01-26 | 端源医疗科技无锡有限公司 | Disposable trocar for dialysis |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20160522 |