CN103071203A - Anti-acupuncture intravenous detaining needle - Google Patents

Anti-acupuncture intravenous detaining needle Download PDF

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Publication number
CN103071203A
CN103071203A CN2012105328047A CN201210532804A CN103071203A CN 103071203 A CN103071203 A CN 103071203A CN 2012105328047 A CN2012105328047 A CN 2012105328047A CN 201210532804 A CN201210532804 A CN 201210532804A CN 103071203 A CN103071203 A CN 103071203A
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CN
China
Prior art keywords
needle
catheter
shell
point
infusion
Prior art date
Application number
CN2012105328047A
Other languages
Chinese (zh)
Inventor
陈建胜
Original Assignee
山东新华安得医疗用品有限公司
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.)
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Publication date
Application filed by 山东新华安得医疗用品有限公司 filed Critical 山东新华安得医疗用品有限公司
Priority to CN2012105328047A priority Critical patent/CN103071203A/en
Publication of CN103071203A publication Critical patent/CN103071203A/en

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Abstract

The invention belongs to the field of medical instruments and particularly relates to an anti-acupuncture intravenous detaining needle. The anti-acupuncture intravenous detaining needle comprises a catheter, a catheter seat, a steel needle and a protective sleeve, wherein the catheter is riveted on the catheter seat which is internally provided with an isolating plug; a needle tip of the steel needle penetrates through the isolating plug to extend into the catheter; the rear end of the steel needle is in interference fit with a needle seat; the rear end of the catheter seat is connected with an anti-acupuncture device; the needle seat is positioned in the anti-acupuncture device; the catheter seat is connected with a positive-pressure needleless joint device through an extending pipe; the catheter seat is communicated with the extending pipe by an infusion port in the side surface; the steel needle passes through a side hole in the side surface and is communicated with the extending pipe; and the extending pipe is provided with a flow stopping clamp. The anti-acupuncture intravenous detaining needle has the advantages that after the vein is punctured, when the steel needle is pulled out, the anti-acupuncture device can close and recover the steel needle automatically, so that the needle tip of the steel needle is prevented from puncturing medical staffs, and the infection of the hematogenous infectious disease is effectively avoided; and after the infusion is completed, when a joint of an infusion instrument is pulled out, positive pressure can be generated, and a certain amount of liquid medicine flows out from the tail end of the catheter, so that the positive-pressure sealing pipe is ensured and blood backflow is effectively reduced.

Description

Anti-venous indwelling needle
Technical field
The present invention relates to a kind of anti-venous indwelling needle, belong to the medical apparatus field.
Background technology
Transfusion nursing is an important and commonly used nursing procedure in the clinical care.The inpatient of China 73%~90% will carry out infusion treatment, and venous transfusion has occupied nurse about 75% working time.Along with the development of medical science and technology and medical apparatus and instruments, use Lien needle intravenous transfusion and have and reduce venipuncture every day number of times, obviously improve advantages such as comfort level during patient's transfusion, and operating technology easily grasps, thereby be widely used in clinical.The range of application of venous detaining needle constantly enlarges in recent years, now in clinical each section office's popularization and application.But domesticly studies have shown that in a large number the nurse is through the pathophorous high-risk professional colony of blood, often sees the wound that incised wound, pricking wound etc. cause on nurse's the both hands.And do not wear glove when at present the nurse of China's overwhelming majority hospitals carries out periphery venipuncture, the blood that flows out in the time of may extracting because of nook closing member pollutes.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of and prevent by pricking wound, can effectively reduce blood backflow, improve the anti-venous indwelling needle of infusion safety coefficient.
Anti-venous indwelling needle of the present invention, comprise conduit, catheter block, draw point and sheath, the conduit riveting is on catheter block, batching pig is set in the catheter block, the draw point needle point passes batching pig and stretches in the conduit, draw point rear end and needle stand interference fit, the catheter block rear end connects Needlestick prevention device, needle stand is arranged in Needlestick prevention device, catheter block connects the positive pressure needle-free piecing devices by extension tube, catheter block communicates with extension tube by the infusion port on the side, and draw point communicates with extension tube by the side opening on the side, and flow-stopping clip is installed on the extension tube.
This remaining needle has increased positive pressure needle-free piecing devices and Needlestick prevention device on the basis of the disposable use closed of tradition remaining needle.During use, the positive pressure needle-free piecing devices directly are connected with the joint of infusion utensil, do not need to be communicated with the formation infusion channel with transfusion needle or entry needle, namely needleless connects.Work as infusion-completed, when extracting the joint of infusion utensil, can produce malleation, flow out a certain amount of medicinal liquid from catheter tip, thereby guarantee positive pressure tube sealing, effectively reduce blood backflow; Behind the puncture vein, when extracting draw point out, Needlestick prevention device can reclaim the draw point sealing automatically, thereby prevents that the draw point needle point from stabbing the medical worker, effectively avoids the infection of haematogenous communicate illness.
Described Needlestick prevention device comprises the needle tip shield of needle point retaining clip and bottom seal, corresponding needle point retaining clip arranges annular groove or annular boss in catheter block, needle point retaining clip front end has needle point retaining clip front end and has left intermediate plate, right clamping piece, the rear end is fixedly connected with needle tip shield, the rubber ring that resets is installed at the middle part, the side of needle tip shield arranges chute, has the handle of stirring on the needle stand, stirs handle and passes chute and be connected with needle stand in the needle tip shield.Wherein, two intermediate plates of needle point retaining clip adopt following preferred structure:
The jaws face of described left intermediate plate surpasses the centrage of needle point retaining clip, and the protection needle point avoids needle point to expose, and prevents from stabbing the nursing staff.
After draw point passed the needle point retaining clip, the size of the draw point retaining clip that struts was greater than the inward flange size of catheter block inside ringed groove or annular boss, and the draw point retaining clip is stuck in the catheter block; Needle stand is slidingly matched with needle tip shield in the Needlestick prevention device; when pulling on the needle stand stir handle after; draw point is deviate from from the needle point retaining clip; rubber ring is elastomeric material owing to reset, so draw point retaining clip size under the rubber ring that resets shrinks comes off the draw point retaining clip less than catheter block from catheter block; two intermediate plates of the draw point retaining clip closure that resets; draw point is enclosed in the draw point sheath, plays the protection needle point, prevent pricking wound.
Described positive pressure needle-free piecing devices comprise shell, Connection Block and piston, the internal diameter of shell front portion is greater than the internal diameter at rear portion, the Connection Block front end has infusion hole and bonding with extension tube, the rear end is arranged in the cavity of shell front portion, there is the liquid communication gap that is communicated with infusion hole between Connection Block and the shell, the groove that communicates with the liquid communication gap is set on the inwall at shell rear portion, the point diameter of piston is greater than rear end and the point diameter rear portion internal diameter greater than joint shell, piston nose is arranged in Connection Block, mounting spring between Connection Block and the piston.
Described shell side arranges oblique fluid infusion passage, and oblique fluid infusion passage communicates with the infusion hole of Connection Block, and the outer end port of oblique fluid infusion passage is installed end cap.By oblique fluid infusion passage, can carry out fluid infusion in good time, during fluid infusion, only need open end cap, the medicinal liquid injection is got final product.Wherein, end cap both can adopt common end cap, the puncture end cap that also can adopt isoamyl glue to make.
In order to guarantee the sealing property of positive pressure needle-free piecing devices inside, all sealing ring can be installed with position, the piston of housing contacts with the position of housing contacts, the position that piston contacts with Connection Block at Connection Block.Wherein, sealing ring adopts silicon rubber loop.
Except above-mentioned points, described batching pig adopts the isoamyl glue material.
The beneficial effect that the present invention compared with prior art has is:
1, this indwelling is by arranging Needlestick prevention device, when extracting draw point the draw point needle point can automatic accomodation in needle tip shield, and can't restore, residual blood is not stayed on the surface, make the nurse in whole operating process, can avoid the contact of blood, effectively avoid the infection of haematogenous communicate illness, the threat that also nurse is stabbed away from needle point has effectively reduced the risk factor of occupational exposure, and clinical occupational protection is played an important role;
2, by the Needleless barotropic piecing devices, remaining needle is linked to each other with transfusion device or syringe, the connected mode that has replaced scalp puncture of steel needles remaining needle calparine cap, to there be pin to connect and change the needleless connection into, work as infusion-completed, when extracting infusion utensil needleless joint, can produce malleation, flowing out a certain amount of medicinal liquid from catheter tip can guarantee positive pressure tube sealing and effectively reduce blood backflow, both guaranteed patient's drug safety and effectively fluid infusion, be beneficial to the infusion management standard, be worth at clinical expansion, can effectively avoid again the probability that causes the rubber-like foreign body to come off and enter human body along venous channel because of the repeated localised puncture calparine cap, guarantee infusion safety.
Description of drawings
Fig. 1 is axonometric chart of the present invention;
Fig. 2 is the structural representation of conduit and catheter block;
Fig. 3 is the structural representation of Needlestick prevention device;
Fig. 4 is the structural representation of needle point retaining clip;
Fig. 5 is the structural representation of positive pressure needle-free piecing devices.
Among the figure: 1, sheath; 2, conduit; 3, catheter block; 4, flow-stopping clip; 5, extension tube; 6, end cap; 7, positive pressure needle-free piecing devices; 8, Needlestick prevention device; 9, infusion port; 10, batching pig; 11, annular groove; 12, the rubber ring that resets; 13, needle point retaining clip; 14, chute; 15, draw point; 16, needle tip shield; 17, stir handle; 18, needle stand; 19, left intermediate plate; 20, right clamping piece; 21, infusion hole; 22, Connection Block; 23, sealing ring; 24, shell; 25, spring; 26, sealing ring; 27, piston; 28, sealing ring; 29, oblique fluid infusion passage.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further:
Such as Fig. 1,2, shown in 3, anti-venous indwelling needle comprises conduit 2, catheter block 3, draw point 15 and sheath 1, conduit 2 rivetings are on catheter block 3, batching pig 10 is set in the catheter block 3, batching pig 10 and catheter block 3 interference fit, draw point 15 needle points pass batching pig and stretch in the conduit 2, draw point 15 rear ends and needle stand 18 interference fit, catheter block 3 rear ends connect Needlestick prevention device 8, needle stand 18 is arranged in Needlestick prevention device 8, and catheter block 3 connects positive pressure needle-free piecing devices 7 by extension tube 5, and catheter block 3 communicates with extension tube 5 by the infusion port 9 on the side, draw point 15 communicates with extension tube 5 by the side opening on the side, and flow-stopping clip 4 is installed on the extension tube 5.Wherein, batching pig 10 adopts the isoamyl glue material; Flow-stopping clip 4 is the Xinhua folder of one-handed performance, behind heparin or normal saline tube sealing, pull Xinhua's folder after, produce the 0.01ml malleation amount that is not less than; The needle stand 18 preferential fin-shaped needle stands 18 that adopt.
Described Needlestick prevention device as shown in Figure 3, the needle tip shield 16 that comprises needle point retaining clip 13 and bottom seal, corresponding needle point retaining clip 13 arranges annular groove 11 in catheter block 3, needle point retaining clip 13 front ends have needle point retaining clip 13 front ends and have left intermediate plate 19, right clamping piece 20, the rear end is fixedly connected with needle tip shield 16, and the rubber ring 12 that resets is installed at the middle part, and the side of needle tip shield 16 arranges chute 14, have the handle of stirring 17 on the needle stand 18, stir handle 17 and pass chute 14 and be connected with needle stand 18 in the needle tip shield 16.Wherein, the jaws face of left intermediate plate 19 surpasses the centrage of needle point retaining clip 13, specifically as shown in Figure 4.
Described positive pressure needle-free piecing devices as shown in Figure 5, comprise shell 24, Connection Block 22 and piston 27, the internal diameter of shell 24 front portions is greater than the internal diameter at rear portion, Connection Block 22 front ends have infusion hole 21 and bonding with extension tube 5, the rear end is arranged in the cavity of shell 24 front portions, there is the liquid communication gap that is communicated with infusion hole 21 between Connection Block 22 and the shell 24, the groove that communicates with the liquid communication gap is set on the inwall at shell 24 rear portions, the point diameter of piston 27 is greater than rear end and the point diameter rear portion internal diameter greater than joint shell 24, piston 27 front ends are arranged in Connection Block 22, mounting spring 25 between Connection Block 22 and the piston 27; Shell 24 sides arrange oblique fluid infusion passage 29, and oblique fluid infusion passage 29 communicates with the infusion hole 21 of Connection Block 22, and the outer end port of oblique fluid infusion passage 29 is installed end cap 6.Wherein, end cap 6 both can adopt common end cap 6, the puncture end cap 6 that also can adopt isoamyl glue to make.
In order to guarantee the sealing property of positive pressure needle-free piecing devices inside, in the position that Connection Block 22 contacts with shell 24, the position that piston 27 contacts with shell 24, the position that piston 27 contacts with Connection Block 22 sealing ring 23,28,26 is installed respectively.Wherein, sealing ring all adopts silicon rubber loop.
This remaining needle has increased positive pressure needle-free piecing devices 7 and Needlestick prevention device 8 on the basis of the disposable use closed of tradition remaining needle.During use, positive pressure needle-free piecing devices 7 directly are connected with the joint of infusion utensil, do not need to be communicated with the formation infusion channel with transfusion needle or entry needle, namely needleless connects.Work as infusion-completed, when extracting the joint of infusion utensil, can produce malleation, flow out a certain amount of medicinal liquid from catheter tip, thereby guarantee positive pressure tube sealing, effectively reduce blood backflow; Behind the puncture vein, when extracting draw point 15 out, Needlestick prevention device 8 can reclaim draw point 15 sealings automatically, thereby prevents that draw point 15 needle points from stabbing the medical worker, effectively avoids the infection of haematogenous communicate illness.

Claims (10)

1. anti-venous indwelling needle, comprise conduit (2), catheter block (3), draw point (15) and sheath (1), conduit (2) riveting is on catheter block (3), batching pig (10) is set in the catheter block (3), draw point needle point (15) passes batching pig (10) and stretches in the conduit (2), it is characterized in that: draw point (15) rear end and needle stand interference fit, catheter block (3) rear end connects Needlestick prevention device (8), needle stand (18) is arranged in Needlestick prevention device (8), catheter block (3) connects positive pressure needle-free piecing devices (7) by extension tube (5), catheter block (3) communicates with extension tube (5) by the infusion port on the side (9), draw point (15) communicates with extension tube (5) by the side opening on the side, the upper flow-stopping clip (4) of installing of extension tube (5).
2. anti-venous indwelling needle according to claim 1, it is characterized in that: described Needlestick prevention device comprises the needle tip shield (16) of needle point retaining clip (13) and bottom seal, corresponding needle point retaining clip (13) arranges annular groove (11) or annular boss in catheter block (3), needle point retaining clip (13) front end has left intermediate plate (19), right clamping piece (20), the rear end is fixedly connected with needle tip shield (16), the rubber ring (12) that resets is installed at the middle part, the side of needle tip shield (16) arranges chute (14), have the handle of stirring (17) on the needle stand (18), stir handle (17) and pass chute (14) and be connected with needle stand (18) in the needle tip shield.
3. anti-venous indwelling needle according to claim 2 is characterized in that: the jaws face of described left intermediate plate (19) surpasses the centrage of needle point retaining clip (13).
4. anti-venous indwelling needle according to claim 1, it is characterized in that: described positive pressure needle-free piecing devices comprise shell (24), Connection Block (22) and piston (27), the internal diameter of shell (24) front portion is greater than the internal diameter at rear portion, Connection Block (22) front end has infusion hole (21) and bonding with extension tube (5), the rear end is arranged in the anterior cavity of shell (24), there is the liquid communication gap that is communicated with infusion hole (21) between Connection Block (22) and the shell (24), the groove that communicates with the liquid communication gap is set on the inwall at shell (24) rear portion, the point diameter of piston (27) is greater than rear end and the point diameter rear portion internal diameter greater than joint shell (24), piston (27) front end is arranged in Connection Block (22), mounting spring (25) between Connection Block (22) and the piston (27).
5. anti-venous indwelling needle according to claim 4, it is characterized in that: described shell (24) side arranges oblique fluid infusion passage (29), oblique fluid infusion passage (29) communicates with the infusion hole (21) of Connection Block (22), and the outer end port of oblique fluid infusion passage (29) is installed end cap (6).
6. anti-venous indwelling needle according to claim 4 is characterized in that: the position installation sealing ring (23) that described Connection Block (22) contacts with shell (24).
7. anti-venous indwelling needle according to claim 4 is characterized in that: the position installation sealing ring (28) that described piston (27) contacts with shell (24).
8. anti-venous indwelling needle according to claim 4 is characterized in that: the position installation sealing ring (26) that described piston (27) contacts with Connection Block (22).
9. according to claim 6,7 or 8 described anti-venous indwelling needles, it is characterized in that: described sealing ring adopts silicon rubber loop.
10. anti-venous indwelling needle according to claim 1 is characterized in that: described batching pig (10) employing isoamyl glue material.
CN2012105328047A 2012-12-12 2012-12-12 Anti-acupuncture intravenous detaining needle CN103071203A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103272324A (en) * 2013-05-31 2013-09-04 相良顺 Minimally-invasive intervening type medicine feeding device
CN104288871A (en) * 2014-10-29 2015-01-21 林新颖 Self-service type injection gun
CN104826196A (en) * 2015-05-29 2015-08-12 邓杜娟 Self-sealing type venous indwelling needle with liquid bag in needle holder
CN106267451A (en) * 2016-08-23 2017-01-04 徐俊鸽 A kind of venous detaining needle
CN107970501A (en) * 2016-10-25 2018-05-01 袁娜 A kind of blood sampling connector and blood-taking device based on venous detaining needle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1157002A (en) * 1997-08-22 1999-03-02 Terumo Corp Indwelling needle assembly
US5961493A (en) * 1998-06-03 1999-10-05 Liu; Wen-Neng Automatic safety infusion catheter needle
CN201033192Y (en) * 2007-05-15 2008-03-12 上海林华医疗器械有限公司 Needle for remaining in vein having positive pressure joint
WO2011019316A1 (en) * 2009-08-13 2011-02-17 Vigmed Ab Catheter needle tip shielding device
CN201791157U (en) * 2010-09-16 2011-04-13 吴林元 Sustainable positive pressure needleless connecting component
CN202478299U (en) * 2012-02-07 2012-10-10 山东新华安得医疗用品有限公司 Safety indwelling needle
CN203043149U (en) * 2012-12-12 2013-07-10 山东新华安得医疗用品有限公司 Needling prevention venous indwelling needle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1157002A (en) * 1997-08-22 1999-03-02 Terumo Corp Indwelling needle assembly
US5961493A (en) * 1998-06-03 1999-10-05 Liu; Wen-Neng Automatic safety infusion catheter needle
CN201033192Y (en) * 2007-05-15 2008-03-12 上海林华医疗器械有限公司 Needle for remaining in vein having positive pressure joint
WO2011019316A1 (en) * 2009-08-13 2011-02-17 Vigmed Ab Catheter needle tip shielding device
CN201791157U (en) * 2010-09-16 2011-04-13 吴林元 Sustainable positive pressure needleless connecting component
CN202478299U (en) * 2012-02-07 2012-10-10 山东新华安得医疗用品有限公司 Safety indwelling needle
CN203043149U (en) * 2012-12-12 2013-07-10 山东新华安得医疗用品有限公司 Needling prevention venous indwelling needle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103272324A (en) * 2013-05-31 2013-09-04 相良顺 Minimally-invasive intervening type medicine feeding device
CN103272324B (en) * 2013-05-31 2016-09-07 相良顺 A kind of Wicresoft insertion type doser
CN104288871A (en) * 2014-10-29 2015-01-21 林新颖 Self-service type injection gun
CN104826196A (en) * 2015-05-29 2015-08-12 邓杜娟 Self-sealing type venous indwelling needle with liquid bag in needle holder
CN104826196B (en) * 2015-05-29 2018-05-01 邓杜娟 Liquid capsule self-sealing venous detaining needle in a kind of needle stand
CN106267451A (en) * 2016-08-23 2017-01-04 徐俊鸽 A kind of venous detaining needle
CN107970501A (en) * 2016-10-25 2018-05-01 袁娜 A kind of blood sampling connector and blood-taking device based on venous detaining needle

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Application publication date: 20130501

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