CN102641528A - Safety remaining needle - Google Patents

Safety remaining needle Download PDF

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Publication number
CN102641528A
CN102641528A CN2012101398303A CN201210139830A CN102641528A CN 102641528 A CN102641528 A CN 102641528A CN 2012101398303 A CN2012101398303 A CN 2012101398303A CN 201210139830 A CN201210139830 A CN 201210139830A CN 102641528 A CN102641528 A CN 102641528A
Authority
CN
China
Prior art keywords
needle
elasticity card
hole
needle point
chamber
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.)
Pending
Application number
CN2012101398303A
Other languages
Chinese (zh)
Inventor
秦宏平
王书华
彭家启
张庆军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Suyun Medical Materials Co Ltd
Original Assignee
Jiangsu Suyun Medical Materials Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Suyun Medical Materials Co Ltd filed Critical Jiangsu Suyun Medical Materials Co Ltd
Priority to CN2012101398303A priority Critical patent/CN102641528A/en
Publication of CN102641528A publication Critical patent/CN102641528A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a safety remaining needle, which comprises a needle head assembly and an injection connector assembly. The needle head assembly comprises a sleeve tube base and a puncture needle. A partition plug is arranged in the sleeve tube base, the sleeve tube base is divided into an injection cavity and a needle base cavity through the partition plug, a blood returning side channel is arranged on the front portion of a needle head, a needle point protective chamber is arranged between the needle base cavity and the partition plug, and a needle point protective elastic clamp is arranged in the needle point protective chamber. The needle point protective elastic clamp is provided with a parallelogram-shaped elastic clamp body formed by folding an elastic clamping strip, two lateral sides of the elastic clamp body are closely matched with a lateral wall of the needle point protective chamber, an upper through hole and a lower through hole matched with outer diameter of the needle head are arranged at the middle positions of an upper side and a lower side of the elastic clamp body respectively, and an elastic retaining plate matched with the blood returning side channel is arranged on one lateral side of the lower through hole. The safety remaining needle is reasonable in design, simple in structure and convenient to use, can protect a needle point, avoids a phenomenon that people are hurt by the puncture needle easily, achieves purposes of safety protective and avoiding cross infection, and is convenient for clinical use.

Description

Safety indwelling needle
Technical field
The present invention relates to a kind of transfusion medical apparatus and instruments, particularly a kind of safety indwelling needle.
Background technology
The Along with people's growth in the living standard, the safety indwelling needle less to blood vessel injury has been widely used in clinical.But the puncture needle in the transfusion operation process has broken away from safety indwelling needle after puncture finishes to release, its needle point is prone to stab medical personnel or other personnel, medical personnel is injured and cross infection, arbitrarily puts simultaneously, causes environmental pollution easily.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to prior art, provides a kind of rational in infrastructure, easy to use, the remaining needle that can needle point guard be got up.
Technical problem to be solved by this invention is to realize through following technical scheme, and the present invention is a kind of safety indwelling needle, comprises needle assembly, fluid injection adapter assembly; Connect through conduit between needle assembly and the fluid injection adapter assembly; Described needle assembly comprises casing seat and puncture needle, and described casing seat front end is provided with the indwelling flexible pipe, and batching pig is housed in the casing seat; Casing seat is divided into fluid injection chamber and needle stand chamber through batching pig; Puncture needle comprises syringe needle and needle handle, and the front portion of syringe needle is provided with the blood back side channel, is characterized in: be provided with the needle point guard chamber between needle stand chamber and the batching pig; At the indoor needle point guard elasticity card that is equipped with of needle point guard; Described needle point guard elasticity is arranged with the elasticity card body of the parallelogram that is bent to form by the elasticity card article, and a side of elasticity card body is overlapped by the head end of elasticity card article and tail end and constitutes, and two sides of elasticity card body and the sidewall of needle point guard chamber closely cooperate; Distance between the bottom and upper segment of elasticity card body is greater than the distance of needle tip to blood back side channel; The centre position of the bottom and upper segment of elasticity card body be respectively equipped with cooperate with the syringe needle external diameter on through hole and lower through-hole, described lower through-hole is square, a side of lower through-hole is provided with the elastic block piece that cooperates with the blood back side channel.
Technical problem to be solved by this invention can also further realize that the epimere of the side of the head and the tail overlap joint of elasticity card body is vertical with the top of elasticity card body through following technical scheme, and the angle of the bottom of hypomere and elasticity card body is 75 °~85 °.
The present invention is through being provided with needle point guard elasticity card between batching pig and puncture needle needle handle, puncture needle passes needle point guard elasticity and is installed in the casing seat, after vein puncture finishes; Extract puncture needle out, when the forward blood back side channel of syringe needle passed through the elastic block piece on the elasticity card body, elastic block piece was stuck in blood back side channel place; Make needle point guard elasticity card along with puncture needle breaks away from casing seat together; The needle point guard elasticity card restore nature state that breaks away from casing seat makes the last through hole and the lower through-hole dislocation of elasticity card body, thereby makes elasticity card body atresia position cover needle point; Make needle point can not be on passing through hole; Thereby needle point guard got up, can not stab medical personnel, reach security protection and prevent the purpose of cross infection.
Compared with prior art, it is reasonable in design, and is simple in structure, easy to use, need not place especially puncture needle in the infusion process, has stopped puncture needle and has been prone to the phenomenon that thorn is hurted sb.'s feelings, and has made things convenient for clinical use.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of puncture needle guard mode.
The specific embodiment
Following with reference 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 constitute restriction to its right.
With reference to Fig. 1 and 2, a kind of safety indwelling needle comprises needle assembly, fluid injection adapter assembly 1; Connect through conduit 2 between needle assembly and the fluid injection adapter assembly 1, described needle assembly comprises casing seat 6 and puncture needle, and described casing seat 6 front ends are provided with the indwelling flexible pipe; Batching pig 5 is housed in the casing seat 6, and casing seat 6 is divided into fluid injection chamber and needle stand chamber through batching pig 5, and puncture needle comprises syringe needle 8 and needle handle 3; The front portion of syringe needle 8 is provided with blood back side channel 7; Be provided with the needle point guard chamber between needle stand chamber and the batching pig 5, at the indoor needle point guard elasticity card 4 that is equipped with of needle point guard, described needle point guard elasticity card 4 is provided with the elasticity card body 9 of the parallelogram that is bent to form by the elasticity card article; One side of elasticity card body 9 is overlapped by the head end of elasticity card article and tail end and constitutes; It is for distortion allowance is arranged that head end and tail end overlap, and two sides of elasticity card body 9 and the sidewall of needle point guard chamber closely cooperate, and the distance between the bottom and upper segment of elasticity card body 9 is greater than the distance of syringe needle 8 needle points to blood back side channel 7; Needle point can be in the elasticity card body 9 fully; The centre position of the bottom and upper segment of elasticity card body 9 be respectively equipped with cooperate with syringe needle 8 external diameters on through hole 10 and lower through-hole 12, described lower through-hole 12 is square, a side of lower through-hole 12 is provided with the elastic block piece 11 that cooperates with blood back side channel 7.
During making; Earlier batching pig 5 is installed in the casing seat 6; It is indoor then needle point guard elasticity card 4 to be installed in needle point guard, and needle point guard elasticity card 4 is indoor by the fixing rectangle structure that forms of its inwall extruding at needle point guard, and its center of going up through hole 10 and lower through-hole 12 is on same straight line simultaneously; Again the syringe needle 8 of puncture needle is inserted last through hole 10 and lower through-hole 12 through batching pig 5 and needle point guard elasticity card 4 backward from the indwelling flexible pipe of front end, again needle handle 3 is loaded onto at last.
During use, after puncture finishes, extract puncture needle out; When syringe needle 8 forward blood back side channels 7 passed through the elastic block piece 11 on the elasticity card bodies 9, elastic block piece 11 was stuck in blood back side channel 7 places, and at this moment syringe needle 8 needle points to blood back side channel 7 just is in the elasticity card body 9 fully; Pulling again; Make needle point guard elasticity card 4 along with puncture needle breaks away from casing seat 6 together, the needle point guard elasticity card 4 that breaks away from casing seat 6 returns to the parallelogram sturcutre state of nature, makes the last through hole 10 and lower through-hole 12 dislocation of elasticity card body 9; Thereby make elasticity card body 9 atresia positions cover needle point, make needle point can not pass through hole 10 again.
The epimere of the side of the head and the tail overlap joint of elasticity card body 9 is vertical with the top of elasticity card body 9, and the angle of the bottom of hypomere and elasticity card body 9 is 75 °~85 °, can increase the elasticity of elasticity card body 9, under naturalness, can make needle point be difficult for passing from last through hole 10.

Claims (2)

1. a safety indwelling needle comprises needle assembly, fluid injection adapter assembly, connects through conduit between needle assembly and the fluid injection adapter assembly; Described needle assembly comprises casing seat and puncture needle, and described casing seat front end is provided with the indwelling flexible pipe, and batching pig is housed in the casing seat; Casing seat is divided into fluid injection chamber and needle stand chamber through batching pig; Puncture needle comprises syringe needle and needle handle, and the front portion of syringe needle is provided with the blood back side channel, it is characterized in that: be provided with the needle point guard chamber between needle stand chamber and the batching pig; At the indoor needle point guard elasticity card that is equipped with of needle point guard; Described needle point guard elasticity is arranged with the elasticity card body of the parallelogram that is bent to form by the elasticity card article, and a side of elasticity card body is overlapped by the head end of elasticity card article and tail end and constitutes, and two sides of elasticity card body and the sidewall of needle point guard chamber closely cooperate; Distance between the bottom and upper segment of elasticity card body is greater than the distance of needle tip to blood back side channel; The centre position of the bottom and upper segment of elasticity card body be respectively equipped with cooperate with the syringe needle external diameter on through hole and lower through-hole, described lower through-hole is square, a side of lower through-hole is provided with the elastic block piece that cooperates with the blood back side channel.
2. safety indwelling needle according to claim 1 is characterized in that: the epimere of the side of the head and the tail overlap joint of elasticity card body is vertical with the top of elasticity card body, and the angle of the bottom of hypomere and elasticity card body is 75 °~85 °.
CN2012101398303A 2012-05-08 2012-05-08 Safety remaining needle Pending CN102641528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101398303A CN102641528A (en) 2012-05-08 2012-05-08 Safety remaining needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101398303A CN102641528A (en) 2012-05-08 2012-05-08 Safety remaining needle

Publications (1)

Publication Number Publication Date
CN102641528A true CN102641528A (en) 2012-08-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012101398303A Pending CN102641528A (en) 2012-05-08 2012-05-08 Safety remaining needle

Country Status (1)

Country Link
CN (1) CN102641528A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102836479A (en) * 2012-09-13 2012-12-26 苏州林华医疗器械有限公司 Security-type venous indwelling needle
CN103736170A (en) * 2013-10-12 2014-04-23 苏州市雅思精密模具有限公司 Anti-puncture remaining needle
CN104096288A (en) * 2014-07-21 2014-10-15 上海锦泽夏本医疗器械有限公司 Stabbing prevention puncture needle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008742A1 (en) * 1997-08-20 1999-02-25 B. Braun Melsungen Ag Spring clip as needle tip protection for a safety iv catheter
EP1344544A1 (en) * 2000-12-18 2003-09-17 Terumo Kabushiki Kaisha Protector and storage needle assembly
CN2614685Y (en) * 2003-04-24 2004-05-12 苏州碧迪医疗器械有限公司 Venous retention needle capable of preventing blood from overflowing
CN201042539Y (en) * 2007-05-24 2008-04-02 吴林元 Safe lien needle
CN201042538Y (en) * 2007-05-24 2008-04-02 吴林元 Safe lien needle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008742A1 (en) * 1997-08-20 1999-02-25 B. Braun Melsungen Ag Spring clip as needle tip protection for a safety iv catheter
EP1344544A1 (en) * 2000-12-18 2003-09-17 Terumo Kabushiki Kaisha Protector and storage needle assembly
CN2614685Y (en) * 2003-04-24 2004-05-12 苏州碧迪医疗器械有限公司 Venous retention needle capable of preventing blood from overflowing
CN201042539Y (en) * 2007-05-24 2008-04-02 吴林元 Safe lien needle
CN201042538Y (en) * 2007-05-24 2008-04-02 吴林元 Safe lien needle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102836479A (en) * 2012-09-13 2012-12-26 苏州林华医疗器械有限公司 Security-type venous indwelling needle
CN102836479B (en) * 2012-09-13 2014-04-09 苏州林华医疗器械有限公司 Security-type venous indwelling needle
CN103736170A (en) * 2013-10-12 2014-04-23 苏州市雅思精密模具有限公司 Anti-puncture remaining needle
CN104096288A (en) * 2014-07-21 2014-10-15 上海锦泽夏本医疗器械有限公司 Stabbing prevention puncture needle

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Application publication date: 20120822