CN103768682B - Safe type retention needle - Google Patents
Safe type retention needle Download PDFInfo
- Publication number
- CN103768682B CN103768682B CN201410037768.6A CN201410037768A CN103768682B CN 103768682 B CN103768682 B CN 103768682B CN 201410037768 A CN201410037768 A CN 201410037768A CN 103768682 B CN103768682 B CN 103768682B
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- China
- Prior art keywords
- needle
- catch
- hole
- catheter block
- screening glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000014759 maintenance of location Effects 0.000 title claims abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 41
- 238000012216 screening Methods 0.000 claims abstract description 41
- 238000001467 acupuncture Methods 0.000 claims abstract description 14
- 238000001802 infusion Methods 0.000 claims description 10
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 3
- 201000010099 disease Diseases 0.000 abstract description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 3
- 208000012266 Needlestick injury Diseases 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010049976 Impatience Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940127558 rescue medication Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
Present invention is disclosed safe type retention needle, comprise catheter block and needle stand, between catheter block and needle stand, be provided with anti-acupuncture protection assembly; Anti-acupuncture assembly comprises screening glass and protecting seat, and the two ends of protecting seat offer first, second through hole respectively, and described screening glass is made up of a connecting piece and the catch being arranged on brace two ends, offers away from the first catch of catheter block hole of threading a needle; Second catch and the brace junction of close catheter block have opening; Puncture needle head is provided with deformation point, and deformation point external diameter is less than the first through hole internal diameter, and is greater than thread a needle hole or the second through hole internal diameter, and deformation point to the distance of puncture needle needle point is less than on the first catch threads a needle hole to second gear sheet distance; First catch is fixedly connected with protecting seat, and brace is made up of with the reply section being connected to the first catch the deformation section being connected to the second washer; The groove at deformation section place is set to skewed slot.The present invention can effectively prevent the harm such as needle stick injury, disease propagation and environmental pollution.
Description
Technical field
The invention belongs to infusion apparatus field, particularly relate to a kind of single use safe type retention needle with anti-needling action.
Background technology
The use of venous detaining needle can reduce infant because of venipuncture repeatedly and the misery caused and to the fear of having an injection, alleviate the impatience of the head of a family, be convenient to clinical application, suddenly, the rescue medication of critical patient, alleviate the workload of nurse, reduce infant pain, thus venous detaining needle is in wide clinical application.But the withdraw of the needle after a procedure of existing remaining needle, syringe needle pollute by the blood of patient, medical personnel pull away or clear up abandon remaining needle time, easily stab by syringe needle and easily catch, simultaneously discarded syringe needle is exposed easily causes environmental pollution in the environment, there is serious potential safety hazard.Single use safe type retention needle is disclosed in Chinese patent application 2013100333325; this patent well solves the drawback brought in the exposed environment of syringe needle by anti-acupuncture assembly; but the screening glass resilience in protecting seat in anti-acupuncture assembly is inadequate; and the structure relative complex of screening glass, cost of manufacture is higher.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of the invention is to propose a kind of single use safe type retention needle, avoid the syringe needle after the use withdraw of the needle of the puncture needle in remaining needle in the environment exposed, prevent cross infection and environmental pollution after acupuncture.
Object of the present invention will be achieved by the following technical programs:
Safe type retention needle, comprises a catheter block and a needle stand, is provided with an anti-acupuncture and protects assembly between described catheter block and described needle stand; The protecting seat that described anti-acupuncture assembly comprises a screening glass and is arranged on outside screening glass, the two ends of protecting seat offer first, second through hole respectively, described protecting seat offers groove, described screening glass is built in described groove, described screening glass is made up of a connecting piece and first, second catch being arranged on brace two ends, offers away from the first catch of catheter block hole of threading a needle; Second catch and the brace junction of close catheter block have an opening; During original state, the afterbody of a puncture needle successively through described catheter block, the second through hole, opening, thread a needle hole and the first through hole are fixedly connected on described needle stand; The head of described puncture needle is provided with deformation point, the external diameter of described deformation point is less than the internal diameter of described first through hole, and the internal diameter of thread a needle described in being greater than hole or the second through hole, described deformation point to the distance of needle point of described puncture needle is less than the distance of hole to the second catch of threading a needle on described first catch; Described first catch is fixedly connected with protecting seat, and described brace is made up of with the reply section being connected to the first catch the deformation section being connected to the second washer; The groove at described deformation section place is set to skewed slot.
Preferably, described second washer is provided with one folding piece by opening part, described tabs is vertical with described second catch.
Preferably, described deformation point to the distance of needle point of described puncture needle is less than the distance of hole to tabs top of threading a needle on described first catch.
Preferably, described screening glass is also provided with at least one for preventing described screening glass in the card thorn of described protecting seat internal shift or projection.
Preferably, the reply section of described screening glass is provided with the barb apparatus for carrying out forcing return to it.
Preferably, described catheter block offers a groove, being angularly formed by connecting by two sections of straight shape grooves of described groove, the tail end of described first catch stretches out protecting seat and inserts outward in the groove of catheter block.
Preferably, described catheter block is comprise supervisor and the three-port structure being communicated with the arm arranged in supervisor side with supervisor, and be provided with a batching pig in described supervisor, the syringe needle of described puncture needle, through described batching pig, stretches out described catheter block; The conduit that the syringe needle position cover of described puncture needle has one can be retained in endovascular softness, described conduit is also socketed with a protective sleeve; Described arm is connected with a note infusion connector by a long duct, described note infusion connector is connected with an end cap and a calparine cap; Described long duct is provided with a flow-stopping clip.
Preferably, described note infusion connector is straight-through, two-way or many flow-throughs needleless joint.
Preferably, in described groove, angle is that acute angle is arranged.
Preferably, the barb of described barb apparatus to be cross section be U-shaped.
Outstanding effect of the present invention is: the anti-acupuncture protection assembly that single use safe type retention needle of the present invention has; ensure that catch can block the syringe needle of puncture needle completely; can effectively prevent the harm such as needle stick injury, disease propagation and environmental pollution; simultaneously; the resilience of screening glass is effective; structure is simple, safe and reliable.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, is easier to understand, grasp to make technical solution of the present invention.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is that the embodiment of the present invention is using the partial structurtes schematic diagram under original state;
Fig. 3 is the partial schematic diagram after the use of the embodiment of the present invention;
Fig. 4 is the structural representation of the screening glass of the embodiment of the present invention;
Fig. 5 be the screening glass of the embodiment of the present invention in protecting seat time structural representation;
Fig. 6 is the structural representation of the sheathed catheter of the embodiment of the present invention.
Detailed description of the invention
Embodiment:
A kind of single use safe type retention needle of the present embodiment, as shown in Fig. 1 ~ Fig. 6, comprises catheter block 3 and needle stand 2, is provided with anti-acupuncture and protects assembly between catheter block 3 and needle stand 2; Anti-acupuncture assembly comprises protecting seat, and the two ends of protecting seat offer the first through hole 61 and the second through hole 62 respectively, are provided with screening glass 7 in protecting seat.
Concrete, as shown in Figure 5, protecting seat offers groove, described screening glass 7 is built in described groove.Described screening glass 7 is made up of a connecting piece and first, second catch being arranged on brace two ends, offers away from the first catch 9 of catheter block 3 hole 91 of threading a needle; The second catch 8 near catheter block 3 has an opening 83 with brace junction; Described screening glass 7 is also provided with at least one for preventing described screening glass in the card thorn 92 of described protecting seat internal shift or projection.
The head of described puncture needle 1 is provided with deformation point 11, and the external diameter of described deformation point 11 is less than the internal diameter of described first through hole 61, and the internal diameter of thread a needle described in being greater than hole 91 or the second through hole 62.In order to make puncture needle 1 can be protected in use in anti-acupuncture protection assembly, described deformation point 11 to the distance of the needle point of described puncture needle 1 is less than the distance of hole 91 to the second catch 8 of threading a needle on described first catch 9.
Described first catch 9 is fixedly connected with protecting seat 3, shown in concrete composition graphs 6, described catheter block 3 offers a groove, being angularly formed by connecting by the first straight shape groove 33 and the second straight shape groove 32 of described groove.As best angle, the general setting in acute angle, its cross section is in " 7 " shape.The tail end 82 of described second catch 8 stretches out that protecting seat 3 is outer to be inserted in the groove of catheter block, even if thus protection assembly is also not easily extracted through rotating from sheathed catheter, be provided with the function of locking and safety further.
In order to better prevent puncture needle from again passing protection assembly, described second washer 8 is provided with one folding piece 81 by opening part, described tabs 81 is vertical with described second catch 8.Described deformation point 11 to the distance of the needle point of described puncture needle 1 is less than the distance on 91 to the tabs top, hole of threading a needle on described first catch.
Described brace is made up of with the reply section 72 being connected to the first catch the deformation section 71 being connected to the second washer; The groove at described deformation section place is set to skewed slot.The groove of this skewed slot finger closely inside the section of reply is that oblique line is arranged, and namely giving deformation section has better deformation space.Because screening glass well can not carry out thorough return after deformation, the reply section 72 of described screening glass is provided with the barb apparatus 73 for carrying out forcing return to screening glass.Described barb apparatus 73 for cross section be the barb of U-shaped, the barb of U-shaped structure makes the returning place force of screening glass be greater than the loss grain of its distortion, thus carry out by force return time, screening glass thoroughly can carry out return.
Shown in composition graphs 1 to Fig. 3, during original state, the afterbody of a puncture needle 1 is successively through described catheter block 3, second through hole 62, and opening 83, thread a needle hole 91 and the first through hole 61 are fixedly connected on described needle stand 3.After completing puncture, after puncture needle is extracted, opening 83 axis on described screening glass is almost parallel with the axis in hole 91 of threading a needle.Now, the position of tabs is placed in the side of puncture needle, is blocked by the second washer completely by puncture needle.
Other structures of the present embodiment similarly to the prior art, described catheter block 3 is comprise supervisor and the three-port structure being communicated with the arm 31 arranged in supervisor side with supervisor, a batching pig (meaning not shown in the figures) is provided with in described supervisor, the syringe needle of described puncture needle, through described batching pig, stretches out described catheter block; The conduit 10 that the syringe needle position cover of described puncture needle has one can be retained in endovascular softness, described conduit 10 is also socketed with a protective sleeve; Described arm 31 is connected with a note infusion connector 6 by a long duct 5, described note infusion connector 6 is connected with an end cap and a calparine cap; Described long duct 5 is provided with a flow-stopping clip 4.Described note infusion connector 6 can be straight-through, two-way or many flow-throughs needleless joint.
Below sketch the assembling process at anti-acupuncture protection assembly place of the present invention:
First screening glass 7 is placed in the groove of protecting seat; certain pressure is applied by side opening 62 pairs of screening glass of protecting seat side; until opening with thread a needle hole on the same axis; protection assembly is penetrated with by puncture needle; then the assembly installed is connected in the groove of guide pin bushing seat by the tail end 82 of screening glass second catch stretching out protecting seat, the upper cover of protecting seat is covered and namely completes assembling.
In use, as shown in Figure 1, puncture needle, through the first through hole 61, hole 91 of threading a needle, opening 83, second through hole 62, stretches in conduit 10 and punctures the present embodiment, and after puncture terminates, conduit 10 extracted by puncture needle 1, and flexible conduit is stayed in patient body.During the withdraw of the needle; puncture needle first exits opening 83; screening glass is by replying the barb apparatus in section; combine self thrust produced when utilizing screening glass to assemble again; cancel through self thrust during screening glass upper shed 83 at needle point, screening glass is forced resetting under the effect of barb apparatus, and puncture needle 1 continues to be pulled out backward; when the deformation point 11 on puncture needle snap into the first catch 9 threads a needle hole 91 time, puncture needle is connected in protecting seat by hole 91 of threading a needle.Namely when the syringe needle of puncture needle 1 is stepped back completely to tabs; screening glass produces return; the syringe needle of puncture needle is protected in protecting seat; the tip preventing personnel to be punctured pin is stabbed; can effectively prevent the harm such as disease propagation and environmental pollution; there is structure simultaneously simple, safe and reliable, easily processing and the feature such as easy to use.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection scope of the present invention.
Claims (1)
1. safe type retention needle, comprises a catheter block and a needle stand, is provided with an anti-acupuncture and protects assembly between described catheter block and described needle stand; The protecting seat that described anti-acupuncture assembly comprises a screening glass and is arranged on outside screening glass, the two ends of protecting seat offer first, second through hole respectively, it is characterized in that: described protecting seat offers groove, described screening glass is built in described groove, described screening glass is made up of a connecting piece and first, second catch being arranged on brace two ends, offers away from the first catch of catheter block hole of threading a needle; Second catch and the brace junction of close catheter block have an opening; During original state, the afterbody of a puncture needle successively through described catheter block, the second through hole, opening, thread a needle hole and the first through hole are fixedly connected on described needle stand; The head of described puncture needle is provided with deformation point, the external diameter of described deformation point is less than the internal diameter of described second through hole, and the internal diameter of thread a needle described in being greater than hole or the first through hole, described deformation point to the distance of needle point of described puncture needle is less than the distance of hole to the second catch of threading a needle on described first catch; Described first catch is fixedly connected with protecting seat, and described brace is made up of with the reply section being connected to the first catch the deformation section being connected to the second catch; The groove at described deformation section place is set to skewed slot;
Described second catch is provided with one folding piece by opening part, and described tabs is vertical with described second catch;
Described deformation point to the distance of needle point of described puncture needle is less than the distance of hole to tabs top of threading a needle on described first catch;
Described screening glass is also provided with at least one for preventing described screening glass in the card thorn of described protecting seat internal shift or projection;
The reply section of described screening glass is provided with the barb apparatus for carrying out forcing return to it;
Described catheter block offers a groove, described groove is angularly formed by connecting by two sections of straight shape grooves, and the tail end of described first catch stretches out protecting seat and inserts outward in the groove of catheter block;
Described catheter block is comprise supervisor and the three-port structure being communicated with the arm arranged in supervisor side with supervisor, and be provided with a batching pig in described supervisor, the syringe needle of described puncture needle, through described batching pig, stretches out described catheter block; The conduit that the syringe needle position cover of described puncture needle has one can be retained in endovascular softness, described conduit is also socketed with a protective sleeve; Described arm is connected with a note infusion connector by a long duct, described note infusion connector is connected with an end cap and a calparine cap; Described long duct is provided with a flow-stopping clip;
Described note infusion connector is straight-through, two-way or many flow-throughs needleless joint;
In described groove, angle is that acute angle is arranged;
The barb of described barb apparatus to be cross section be U-shaped, and described protecting seat is provided with one for the upper cover of fixing screening glass position, described upper cover and described protecting seat cooperatively interact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410037768.6A CN103768682B (en) | 2014-01-27 | 2014-01-27 | Safe type retention needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410037768.6A CN103768682B (en) | 2014-01-27 | 2014-01-27 | Safe type retention needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103768682A CN103768682A (en) | 2014-05-07 |
| CN103768682B true CN103768682B (en) | 2016-01-27 |
Family
ID=50561734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410037768.6A Expired - Fee Related CN103768682B (en) | 2014-01-27 | 2014-01-27 | Safe type retention needle |
Country Status (1)
| Country | Link |
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| CN (1) | CN103768682B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617482B (en) * | 2015-09-28 | 2019-10-25 | 广东龙心医疗器械有限公司 | Disposable anti-needle pierces remaining needle |
| CN105854121A (en) * | 2016-05-03 | 2016-08-17 | 佛山特种医用导管有限责任公司 | Disposable venous indwelling needle capable of preventing needle stick injury |
| CN107050567B (en) * | 2017-04-28 | 2023-04-11 | 广东龙心医疗器械有限公司 | Anti-needling retention needle |
| CN107050566B (en) * | 2017-04-28 | 2023-04-11 | 广东龙心医疗器械有限公司 | Anti-needling retention needle |
| CN107789704A (en) * | 2017-11-27 | 2018-03-13 | 昆山伊诺特精密部件有限公司 | A kind of safe clip assembly of remaining needle |
| CN107929874B (en) * | 2017-12-15 | 2023-04-28 | 稳健平安医疗科技(湖南)有限公司 | Needle-punching prevention assembly of safety indwelling needle and safety indwelling needle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6749588B1 (en) * | 1998-04-09 | 2004-06-15 | Becton Dickinson And Company | Catheter and introducer needle assembly with needle shield |
| CN103071204A (en) * | 2013-01-29 | 2013-05-01 | 苏州林华医疗器械有限公司 | Safety type detaining needle with disposable use |
| CN203749935U (en) * | 2014-01-27 | 2014-08-06 | 王亚娟 | Safety indwelling needle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE482738T1 (en) * | 2007-12-20 | 2010-10-15 | Tyco Healthcare | CAP ASSEMBLY WITH SPRING-LOADED CUFF |
-
2014
- 2014-01-27 CN CN201410037768.6A patent/CN103768682B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6749588B1 (en) * | 1998-04-09 | 2004-06-15 | Becton Dickinson And Company | Catheter and introducer needle assembly with needle shield |
| CN103071204A (en) * | 2013-01-29 | 2013-05-01 | 苏州林华医疗器械有限公司 | Safety type detaining needle with disposable use |
| CN203749935U (en) * | 2014-01-27 | 2014-08-06 | 王亚娟 | Safety indwelling needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103768682A (en) | 2014-05-07 |
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| C14 | Grant of patent or utility model | ||
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Application publication date: 20140507 Assignee: SUZHOU LINHUA MEDICAL INSTRUMENT CO., LTD. Assignor: Wang Yajuan Contract record no.: 2016320010020 Denomination of invention: Safe type retention needle Granted publication date: 20160127 License type: Common License Record date: 20160520 |
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