CN103768682A - Safe remaining needle - Google Patents

Safe remaining needle Download PDF

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Publication number
CN103768682A
CN103768682A CN201410037768.6A CN201410037768A CN103768682A CN 103768682 A CN103768682 A CN 103768682A CN 201410037768 A CN201410037768 A CN 201410037768A CN 103768682 A CN103768682 A CN 103768682A
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China
Prior art keywords
needle
hole
catch
screening glass
catheter block
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CN201410037768.6A
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Chinese (zh)
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CN103768682B (en
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王亚娟
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Individual
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Individual
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Abstract

The invention discloses a safe remaining needle, which comprises a catheter seat and a needle seat, wherein an acupuncture prevention protection assembly is arranged between the catheter seat and the needle seat and comprises a protection sheet and a protection seat, the two ends of the protection seat are respectively provided with a first through hole and a second through hole, the protection sheet consists of a connecting sheet and baffle sheets arranged at the two ends of the connecting sheet, a needle passing hole is formed in the first baffle sheet far away from the catheter seat, an opening is formed in a connecting part of the connecting sheet and the second baffle sheet near the catheter seat, a deformation point is arranged at the head part of a puncture needle, the outer diameter of the deformation point is smaller than the inner diameter of the first through hole and is greater than the inner diameter of the needle passing hole or the second through hole, the distance from the deformation point to the needle point of the puncture needle is smaller than the distance from the needle passing hole formed in the first baffle sheet to the second baffle sheet, the first baffle sheet is fixedly connected with the protection seat, the connecting sheet consists of a deformation section connected onto the second baffle sheet and a recovery section connected onto the first baffle sheet, and a groove where the deformation section is located is an inclined groove. The safe remaining needle has the advantage that harm such as acupuncture injury, disease infection and environment pollution can be effectively prevented.

Description

Safe type retention needle
Technical field
The invention belongs to infusion apparatus field, relate in particular to a kind of disposable use safe type retention needle with anti-needling action.
Background technology
The use of venous detaining needle can reduce infant because of cause painful of venipuncture repeatedly and to the fear of having an injection, alleviate the head of a family's impatience, be convenient to clinical application, suddenly, the rescue medication of critical patient, alleviate nurse's workload, reduce infant pain, thereby venous detaining needle is in wide clinical application.But existing remaining needle withdraw of the needle after use, syringe needle is polluted by patient's blood, and medical personnel, pulling away or clear up while abandoning remaining needle, are easily stabbed by syringe needle and easily catch, discarded syringe needle is exposed simultaneously easily causes environmental pollution in environment, has serious potential safety hazard.Disposable use safe type retention needle is disclosed in Chinese patent application 2013100333325; this patent has well solved the drawback of bringing 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 disposable use safe type retention needle, avoid puncture needle in remaining needle using after the withdraw of the needle syringe needle exposed in environment, 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 protection assembly between described catheter block and described needle stand; Described anti-acupuncture assembly comprises a screening glass and is arranged on the protecting seat outside screening glass, the two ends of protecting seat offer respectively first, second through hole, on described protecting seat, offer groove, described screening glass is built in described groove, described screening glass is made up of a connecting piece and first, second catch that is arranged on brace two ends, on the first catch away from catheter block, offers the hole of threading a needle; The second catch and brace junction near catheter block have an opening; When original state, the afterbody of a puncture needle passes described catheter block successively, the second through hole, and 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 the 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 is less than the distance of hole to the second catch of threading a needle on described the first catch to the distance of the needle point of described puncture needle; Described the first catch is fixedly connected with protecting seat, and described brace is made up of with the reply section that is connected in the first catch the deformation section that is connected in the second washer; The groove at described deformation section place is set to skewed slot.
Preferably, on described the second washer, be provided with one folding piece by opening part, described tabs is vertical with described the second catch.
Preferably, described deformation point to the distance of the needle point of described puncture needle is less than the distance of hole to tabs top of threading a needle on described the first catch.
Preferably, on described screening glass, be also provided with at least one for preventing card thorn or the projection of described screening glass at described protecting seat internal shift.
Preferably, in the reply section of described screening glass, be provided with the barb apparatus for it being forced to return.
Preferably, offer a groove on described catheter block, being angle by two sections of straight shape grooves and being formed by connecting of described groove, the tail end of described the first catch stretches out in the groove that protecting seat inserts catheter block outward.
Preferably, described catheter block is the three-port structure that comprises supervisor and be communicated with the arm arranging in supervisor's one side with supervisor, is provided with a batching pig in described supervisor, and the syringe needle of described puncture needle, through described batching pig, stretches out described catheter block; The syringe needle position cover of described puncture needle has a conduit that can be retained in endovascular softness, is also socketed with a protective sleeve on described conduit; Described arm is connected with a note infusion connector by a long duct, is connected with an end cap and a calparine cap on described note infusion connector; 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 acute angle setting.
Preferably, described barb apparatus is that cross section is the barb of U-shaped.
Outstanding effect of the present invention is: the anti-acupuncture protection assembly that disposable use safe type retention needle of the present invention has; guarantee 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; simple in structure, safe and reliable.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, so that technical solution of the present invention is easier to understand, grasp.
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 at the partial structurtes schematic diagram using 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 is the screening glass of the embodiment of the present invention structural representation in protecting seat time;
Fig. 6 is the structural representation of the sheathed catheter of the embodiment of the present invention.
The specific embodiment
Embodiment:
The disposable use safe type retention needle of one of the present embodiment, as shown in Fig. 1~Fig. 6, comprises catheter block 3 and needle stand 2, is provided with anti-acupuncture protection assembly between catheter block 3 and needle stand 2; Anti-acupuncture assembly comprises protecting seat, and the two ends of protecting seat offer respectively the first through hole 61 and the second through hole 62, are provided with screening glass 7 in protecting seat.
Concrete, as shown in Figure 5, on protecting seat, offering 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 that is arranged on brace two ends, on the first catch 9 away from catheter block 3, offers the hole 91 of threading a needle; The second catch 8 near catheter block 3 has an opening 83 with brace junction; On described screening glass 7, be also provided with at least one for preventing card thorn 92 or the projection of described screening glass at described protecting seat internal shift.
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 the 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.For puncture needle 1 can be protected in anti-acupuncture protection assembly in use, 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 second catch 8 of threading a needle on described the first catch 9.
Described the first catch 9 is fixedly connected with protecting seat 3, specifically in conjunction with shown in Fig. 6, on described catheter block 3, offers a groove, being angle by the first straight shape groove 33 and the second straight shape groove 32 and being formed by connecting of described groove.As best angle, be generally acute angle setting, its cross section is " 7 " shape.The tail end 82 of described the second catch 8 stretches out in the groove of the outer insertion catheter block of protecting seat 3, thereby even if make to protect assembly to be also difficult for extracting from sheathed catheter through rotation, has had further locking and safe function.
In order better to prevent that puncture needle from passing protection assembly again, on described the second washer 8, be provided with one folding piece 81 by opening part, described tabs 81 is vertical with described the second catch 8.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 tabs top of threading a needle on described the first catch.
Described brace is made up of with the reply section 72 that is connected in the first catch the deformation section 71 that is connected in the second washer; The groove at described deformation section place is set to skewed slot.This skewed slot finger closely groove of the section of reply inner side is oblique line setting, and giving deformation section has better deformation space.Because screening glass can not well carry out thorough return after distortion, in the reply section 72 of described screening glass, be provided with the barb apparatus 73 for screening glass being forced to return.The barb that described barb apparatus 73 is U-shaped for cross section, the barb of U-shaped structure makes the returning place force of screening glass be greater than the loss grain of its distortion, therefore in the time carrying out by force return, screening glass can thoroughly carry out return.
In conjunction with shown in Fig. 1 to Fig. 3, when original state, the afterbody of a puncture needle 1 passes described catheter block 3, the second through holes 62 successively, opening 83, and thread a needle hole 91 and the first through hole 61 are fixedly connected on described needle stand 3.When completing after puncture, after puncture needle is extracted, opening 83 axis on described screening glass are almost parallel with the axis in the hole 91 of threading a needle.Now, the position of tabs is placed in a side of puncture needle, and puncture needle is blocked by the second washer completely.
Other structures of the present embodiment similarly to the prior art, described catheter block 3 is the three-port structure that comprises supervisor and be communicated with the arm 31 arranging in supervisor's one side with supervisor, in described supervisor, be provided with a batching pig (meaning not shown in the figures), the syringe needle of described puncture needle, through described batching pig, stretches out described catheter block; The syringe needle position cover of described puncture needle has a conduit 10 that can be retained in endovascular softness, on 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, is connected with an end cap and a calparine cap on described note infusion connector 6; 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 of the present invention assembly place:
First screening glass 7 is placed in the groove of protecting seat; side opening 62 by protecting seat side applies certain pressure to screening glass; until opening with thread a needle hole on same axis; with penetrate protection assembly by puncture needle; then by the assembly installing, the tail end 82 of screening glass the second catch by stretching out protecting seat is connected in the groove of guide pin bushing seat, and the upper cover of protecting seat is covered and completes assembling.
In use, as shown in Figure 1, puncture needle, through the first through hole 61, the hole 91 of threading a needle, opening 83, the second through hole 62, stretches in conduit 10 and punctures the present embodiment, and after puncture finishes, puncture needle 1 is extracted conduit 10, and flexible conduit is stayed in patient body.When the withdraw of the needle; puncture needle first exits opening 83; screening glass is by replying the barb apparatus in section; again in conjunction with self thrust of utilizing that screening glass when assembling produces; cancel in needle point self thrust when the screening glass upper shed 83, 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 snaps into while threading a needle hole 91 on the first catch 9, the hole 91 of threading a needle is connected to puncture needle in protecting seat.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 personnel of preventing are punctured the tip of pin and stab; can effectively prevent the harm such as disease propagation and environmental pollution; have simultaneously simple in structure, safe and reliable, easily processing and the feature such as easy to use.
The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming, within all dropping on protection scope of the present invention.

Claims (10)

1. safe type retention needle, comprises a catheter block and a needle stand, is provided with an anti-acupuncture protection assembly between described catheter block and described needle stand; Described anti-acupuncture assembly comprises a screening glass and is arranged on the protecting seat outside screening glass, the two ends of protecting seat offer respectively first, second through hole, it is characterized in that: on described protecting seat, offer groove, described screening glass is built in described groove, described screening glass is made up of a connecting piece and first, second catch that is arranged on brace two ends, on the first catch away from catheter block, offers the hole of threading a needle; The second catch and brace junction near catheter block have an opening; When original state, the afterbody of a puncture needle passes described catheter block successively, the second through hole, and 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 the 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 is less than the distance of hole to the second catch of threading a needle on described the first catch to the distance of the needle point of described puncture needle; Described the first catch is fixedly connected with protecting seat, and described brace is made up of with the reply section that is connected in the first catch the deformation section that is connected in the second washer; The groove at described deformation section place is set to skewed slot.
2. safe type retention needle according to claim 1, is characterized in that: on described the second washer, be provided with one folding piece by opening part, described tabs is vertical with described the second catch.
3. safe type retention needle according to claim 2, is characterized in that: described deformation point to the distance of the needle point of described puncture needle is less than the distance of hole to tabs top of threading a needle on described the first catch.
4. safe type retention needle according to claim 3, is characterized in that: on described screening glass, be also provided with at least one for preventing card thorn or the projection of described screening glass at described protecting seat internal shift.
5. safe type retention needle according to claim 4, is characterized in that: in the reply section of described screening glass, be provided with the barb apparatus for it being forced to return.
6. safe type retention needle according to claim 5, is characterized in that: on described catheter block, offer a groove, being angle by two sections of straight shape grooves and being formed by connecting of described groove, the tail end of described the first catch stretches out in the groove that protecting seat inserts catheter block outward.
7. safe type retention needle according to claim 6, it is characterized in that: described catheter block is the three-port structure that comprises supervisor and be communicated with the arm arranging in supervisor's one side with supervisor, in described supervisor, be provided with a batching pig, the syringe needle of described puncture needle, through described batching pig, stretches out described catheter block; The syringe needle position cover of described puncture needle has a conduit that can be retained in endovascular softness, is also socketed with a protective sleeve on described conduit; Described arm is connected with a note infusion connector by a long duct, is connected with an end cap and a calparine cap on described note infusion connector; Described long duct is provided with a flow-stopping clip.
8. safe type retention needle according to claim 7, is characterized in that: described note infusion connector is straight-through, two-way or many flow-throughs needleless joint.
9. safe type retention needle according to claim 8, is characterized in that: in described groove, angle is acute angle setting.
10. safe type retention needle according to claim 9, is characterized in that: described barb apparatus is that cross section is the barb of U-shaped.
CN201410037768.6A 2014-01-27 2014-01-27 Safe type retention needle Expired - Fee Related CN103768682B (en)

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Application Number Priority Date Filing Date Title
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CN103768682B CN103768682B (en) 2016-01-27

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105617482A (en) * 2015-09-28 2016-06-01 广东龙心医疗器械有限公司 Disposable indwelling needle capable of preventing needle injury
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
CN107050567A (en) * 2017-04-28 2017-08-18 广东龙心医疗器械有限公司 Anti- acupuncture remaining needle
CN107050566A (en) * 2017-04-28 2017-08-18 广东龙心医疗器械有限公司 Anti- acupuncture remaining 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
CN107929874A (en) * 2017-12-15 2018-04-20 湖南平安医械科技有限公司 Anti- the acupuncture component and safety indwelling needle of safety indwelling needle

Citations (4)

* Cited by examiner, † Cited by third party
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
US20090163861A1 (en) * 2007-12-20 2009-06-25 Tyco Healthcare Group Lp Locking Clip Assembly With Spring-Loaded Collar
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
US20090163861A1 (en) * 2007-12-20 2009-06-25 Tyco Healthcare Group Lp Locking Clip Assembly With Spring-Loaded Collar
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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105617482A (en) * 2015-09-28 2016-06-01 广东龙心医疗器械有限公司 Disposable indwelling needle capable of preventing needle injury
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
CN107050567A (en) * 2017-04-28 2017-08-18 广东龙心医疗器械有限公司 Anti- acupuncture remaining needle
CN107050566A (en) * 2017-04-28 2017-08-18 广东龙心医疗器械有限公司 Anti- acupuncture remaining 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
CN107929874A (en) * 2017-12-15 2018-04-20 湖南平安医械科技有限公司 Anti- the acupuncture component and safety indwelling needle of safety indwelling 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

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