CN102641529B - Indwelling needle - Google Patents
Indwelling needle Download PDFInfo
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- CN102641529B CN102641529B CN201210139837.5A CN201210139837A CN102641529B CN 102641529 B CN102641529 B CN 102641529B CN 201210139837 A CN201210139837 A CN 201210139837A CN 102641529 B CN102641529 B CN 102641529B
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- needle
- sleeve
- puncture
- draw
- handle
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Abstract
The invention discloses an indwelling needle comprising a needle head assembly and an injection connector assembly. The needle head assembly comprises a sleeve seat and a puncture needle, wherein the sleeve seat is divided into an injection cavity and a needle seat cavity by virtue of a separation plug, a handheld part is arranged on a needle handle of the puncture needle, a steel needle protection jacket is sleeved on the outer wall of the needle seat cavity and has a draw-type structure formed by 3 to 4 sections of sleeves, a needle handle check ring is arranged at the rear end of the first section of sleeve, a buckle is arranged between the last section of sleeve and the outer wall of the needle seat cavity, a draw locking mechanism is arranged between each two adjacent sleeves, and a gap corresponding to the handheld part of the needle handle is arranged at the rear end of each section of sleeve. According to the invention, when the puncture is finished and the puncture needle is withdrawn, the steel needle protection jacket is unfolded section by section and is pulled to be separated from the sleeve seat after the puncture needle is completely placed in the steel needle protection jacket, and the puncture needle is wholly wrapped in the steel needle protection jacket which is unfolded, thereby preventing the needle tip from stabbing and wounding medical staff after the puncture is finished, and further, achieving the aims of safety protection and cross infection prevention.
Description
Technical field
The present invention relates to a kind of transfusion medical apparatus and instruments, particularly a kind of remaining needle.
Background technology
Along with the raising of people's living standard, the remaining needle less to blood vessel injury has been widely used in clinical.But the puncture needle in transfusion operation process, after puncture finishes to release, has departed from remaining needle, and its needle point is easily stabbed medical personnel or other personnel, medical personnel is injured and cross infection, arbitrarily puts simultaneously, easily causes environmental pollution.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of rational in infrastructure, easy to use, the remaining needle that whole puncture needle can be protected.
Technical problem to be solved by this invention is to realize by following technical scheme, the present invention is a kind of remaining needle, comprise needle assembly, fluid injection adapter assembly, between needle assembly and fluid injection adapter assembly, by conduit, connect, described needle assembly comprises casing seat and puncture needle, described casing seat front end is provided with indwelling flexible pipe, batching pig is housed in casing seat, casing seat is divided into fluid injection chamber and needle stand chamber by batching pig, puncture needle comprises syringe needle and needle handle, needle handle is provided with Handheld Division, be characterized in: on needle stand cavity outer wall, be set with draw point protective jacket, described draw point protective jacket is the drawing and pulling type structure that 3-4 joint sleeve forms, the rear end of first segment sleeve is provided with needle handle back-up ring, between final section sleeve and needle stand cavity outer wall, be provided with buckle, between adjacent sleeve, be provided with pull retaining mechanism, the rear end of every joint sleeve is provided with the breach of position, corresponding needle handle Handheld Division.
Technical problem to be solved by this invention can also further realize by following technical scheme, and described pull retaining mechanism comprises the draw-in groove that is arranged on wherein a joint sleeve ends, in end of corresponding another joint sleeve, is provided with the elastic card coordinating with draw-in groove.
The present invention is by being set with the drawing and pulling type structure draw point protective jacket being comprised of 3-4 joint sleeve on the needle stand cavity outer wall at casing seat, during use, when puncture finishes to exit puncture needle, the Handheld Division of hand-held puncture needle, make a section expansion of draw point protective jacket, after puncture needle is placed in draw point protective jacket completely, pull again and make draw point protective jacket depart from casing seat, draw point protective jacket after expansion by the whole protection of the syringe needle of puncture needle cover in, after having avoided puncture to finish, needle point is stabbed medical personnel again, reaches security protection and prevents the object of cross infection.
Compared with prior art, it is reasonable in design, simple in structure, makes easy to usely, in infusion process, need not process especially puncture needle, has stopped the phenomenon of the easy scathing of puncture needle, has facilitated clinical use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of interior drawing and pulling type puncture needle guard mode.
Fig. 3 is the structural representation of outer drawing and pulling type puncture needle guard mode.
Fig. 4 is structural representation after the draw point protection sleeve expansion of Fig. 3.
The specific embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
With reference to accompanying drawing, a kind of remaining needle, comprise needle assembly, fluid injection adapter assembly 1, between needle assembly and fluid injection adapter assembly 1, by conduit 2, connect, described needle assembly comprises casing seat 8 and puncture needle, described casing seat 8 front ends are provided with indwelling flexible pipe, batching pig 7 is housed in casing seat 8, casing seat 8 is divided into fluid injection chamber and needle stand chamber by batching pig 7, puncture needle comprises syringe needle 9 and needle handle 4, needle handle 4 is provided with Handheld Division 5, on needle stand cavity outer wall, be set with draw point protective jacket 3, the drawing and pulling type structure that described draw point protective jacket 3 forms for 3-4 joint sleeve 10, the rear end of first segment sleeve 10 is provided with needle handle back-up ring 12, needle handle back-up ring 12 can make puncture needle can from draw point protective jacket 3, not deviate from, between final section sleeve 10 and needle stand cavity outer wall, be provided with buckle 6, between adjacent sleeve 10, be provided with pull retaining mechanism 11, the rear end of every joint sleeve 10 is provided with the breach 13 of 5 positions, corresponding needle handle 4 Handheld Division, being convenient to needle handle 4 Handheld Divisions 5 passes through.
During making, after remaining needle has been assembled, then draw point protective jacket 3 is nested in together and is arranged on the needle stand cavity outer wall of casing seat 8 by buckle 6, make needle handle 4 Handheld Divisions 5 be placed in the breach 13 of sleeve 10 rear ends simultaneously.
During use, when puncture finishes to exit puncture needle, the Handheld Division 5 of hand-held puncture needle, puncture needle retreats needle handle 4 and props up needle handle back-up ring 12, thereby drive the 3 a section expansion of draw point protective jacket, be connected and by pull retaining mechanism, lock between sleeve 10, the sleeve 10 launching can not retracted again, when puncture needle be placed in completely draw point protective jacket 3 interior after, then pull and make draw point protective jacket 3 depart from casing seats 8.
The drawing and pulling type structure that draw point protective jacket 3 forms for 3-4 joint sleeve 10, described drawing and pulling type structure comprises interior drawing and pulling type and outer drawing and pulling type, as Fig. 2 and Fig. 3, described interior drawing and pulling type refers to that final section sleeve 10 is connected with needle stand cavity outer wall, the outer wall of remaining every joint sleeve 10 is twitched on the inwall of last joint sleeve 10, described outer drawing and pulling type refers to that final section sleeve 10 is connected with needle stand cavity outer wall, and the inwall of remaining every joint sleeve 10 is twitched on the outer wall of last joint sleeve 10.
Described pull retaining mechanism 11 comprises the draw-in groove that is arranged on wherein joint sleeve 10 ends, in end of corresponding another joint sleeve 10, is provided with the elastic card coordinating with draw-in groove, like this will be by locked after 3 expansion of draw point protective jacket, thus can not shrink back again.
Claims (1)
1. a remaining needle, comprise needle assembly, fluid injection adapter assembly, between needle assembly and fluid injection adapter assembly, by conduit, connect, described needle assembly comprises casing seat and puncture needle, described casing seat front end is provided with indwelling flexible pipe, batching pig is housed in casing seat, casing seat is divided into fluid injection chamber and needle stand chamber by batching pig, puncture needle comprises syringe needle and needle handle, needle handle is provided with Handheld Division, it is characterized in that: on needle stand cavity outer wall, be set with draw point protective jacket, described draw point protective jacket is the drawing and pulling type structure that 3-4 joint sleeve forms, the rear end of first segment sleeve is provided with needle handle back-up ring, between final section sleeve and needle stand cavity outer wall, be provided with buckle, between adjacent sleeve, be provided with pull retaining mechanism, the rear end of every joint sleeve is provided with the breach of position, corresponding needle handle Handheld Division, described pull retaining mechanism comprises the draw-in groove that is arranged on wherein a joint sleeve ends, end at corresponding another joint sleeve is provided with the elastic card coordinating with draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210139837.5A CN102641529B (en) | 2012-05-08 | 2012-05-08 | Indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210139837.5A CN102641529B (en) | 2012-05-08 | 2012-05-08 | Indwelling needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102641529A CN102641529A (en) | 2012-08-22 |
| CN102641529B true CN102641529B (en) | 2014-04-16 |
Family
ID=46654768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210139837.5A Active CN102641529B (en) | 2012-05-08 | 2012-05-08 | Indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102641529B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285450B (en) * | 2013-03-25 | 2015-05-27 | 南通恒泰医疗器材有限公司 | Multifunctional indwelling needle |
| CN104096288B (en) * | 2014-07-21 | 2016-08-24 | 上海锦泽夏本医疗器械有限公司 | A kind of Anti-stabbing puncture needle |
| CN106924839A (en) * | 2015-12-30 | 2017-07-07 | 江苏阳普医疗科技有限公司 | A kind of safe intravenous infusion needle and its implementation |
| CN107789702B (en) * | 2016-08-31 | 2023-07-18 | 上海长征医院 | Safe medical trocar with back-pumping guiding structure |
| CN110075389A (en) * | 2019-06-10 | 2019-08-02 | 河南驼人医疗器械集团有限公司 | A kind of novel and multifunctional remaining needle |
| CN110075388A (en) * | 2019-06-10 | 2019-08-02 | 河南驼人医疗器械集团有限公司 | A kind of anti-needle thorn protective device and the remaining needle using the anti-needle thorn protective device |
| CN110075387A (en) * | 2019-06-10 | 2019-08-02 | 河南驼人医疗器械集团有限公司 | A kind of anti-needle thorn remaining needle of observable withdraw of the needle distance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1344544A1 (en) * | 2000-12-18 | 2003-09-17 | Terumo Kabushiki Kaisha | Protector and storage needle assembly |
| CN1569268A (en) * | 2003-07-11 | 2005-01-26 | 上海康德莱企业发展集团有限公司 | Safety indwelled needle with wings for venous transfusion |
| CN2726611Y (en) * | 2004-09-27 | 2005-09-21 | 陈永曦 | Retention needle having protective sheath |
| CN2810623Y (en) * | 2005-07-21 | 2006-08-30 | 威海洁瑞医用制品有限公司 | Enclosed safety intravenous retention needle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6117108A (en) * | 1997-08-20 | 2000-09-12 | Braun Melsungen Ag | Spring clip safety IV catheter |
| CN202605430U (en) * | 2012-05-08 | 2012-12-19 | 江苏苏云医疗器材有限公司 | Retention needle |
-
2012
- 2012-05-08 CN CN201210139837.5A patent/CN102641529B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1344544A1 (en) * | 2000-12-18 | 2003-09-17 | Terumo Kabushiki Kaisha | Protector and storage needle assembly |
| CN1569268A (en) * | 2003-07-11 | 2005-01-26 | 上海康德莱企业发展集团有限公司 | Safety indwelled needle with wings for venous transfusion |
| CN2726611Y (en) * | 2004-09-27 | 2005-09-21 | 陈永曦 | Retention needle having protective sheath |
| CN2810623Y (en) * | 2005-07-21 | 2006-08-30 | 威海洁瑞医用制品有限公司 | Enclosed safety intravenous retention needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102641529A (en) | 2012-08-22 |
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