CN203043149U - Needling prevention venous indwelling needle - Google Patents
Needling prevention venous indwelling needle Download PDFInfo
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- CN203043149U CN203043149U CN2012206815445U CN201220681544U CN203043149U CN 203043149 U CN203043149 U CN 203043149U CN 2012206815445 U CN2012206815445 U CN 2012206815445U CN 201220681544 U CN201220681544 U CN 201220681544U CN 203043149 U CN203043149 U CN 203043149U
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- needle
- conduit
- shell
- point
- connection block
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Abstract
The utility model belongs to the medical instrument field, and particularly relates to a needling prevention venous indwelling needle. The needling prevention venous indwelling needle comprises a conduit, a conduit base, a steel needle and a protective jacket, wherein the conduit is riveted on the conduit base, an isolation plug is arranged in the conduit base, the needle point of the steel needle penetrates through the isolation plug to stretch into the conduit, the back end of the steel needle is matched with a needle base in an interference mode, the back end of the conduit base is connected with a needling prevention device, the needle base is located in the needling prevention device, the conduit base is connected with a positive pressure non-needle connector device through an extension tube, the conduit base is communicated with the extension tube through an infusion port on the lateral side, the steel needle is communicated with the extension tube through a lateral hole on the lateral side, and a stagnation valve is arranged on the extension tube. After the needling prevention venous indwelling needle punctures a vein and the steel needle is pulled out, the needling prevention device can automatically close and recover the steel needle, and therefore the phenomenon that the needle point of the steel needle punctures medical staff is prevented, and infection of hematogenous infectious diseases is effectively avoided when infusion is completed. When a connector of an infusion instrument is pulled out, positive pressure is generated, a certain amount of medicine liquid flows out from the tail end of the conduit, and therefore positive pressure tube sealing is guaranteed, and blood reflux is effectively reduced.
Description
Technical field
This utility model relates to a kind of anti-acupuncture venous detaining needle, belongs 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 the remaining needle venous 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, sees the wound that incised wound, pricking wound etc. cause on nurse's the both hands often.And the nurse of China's overwhelming majority hospital carries out not wearing glove when peripheral vein punctures at present, and the blood that flows out in the time of may extracting because of nook closing member pollutes.
The utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of and prevent by pricking wound, can effectively reduce the anti-acupuncture venous detaining needle that blood refluxes, improves the transfusion safety coefficient.
Anti-acupuncture venous detaining needle described in the utility model, 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 malleation needleless piecing devices by prolonging pipe, catheter block communicates with prolonging pipe by the infusion port on the side, and draw point communicates with prolonging pipe by the side opening on the side, prolongs pipe flow-stopping clip upward is installed.
This remaining needle has increased malleation needleless piecing devices and Needlestick prevention device on the basis of the disposable use closed of tradition remaining needle.During use, malleation needleless 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.When transfusion finishes, when extracting the joint of infusion utensil, can produce malleation, flow out a certain amount of medicinal liquid from catheter tip, thereby guarantee the malleation tube sealing, effectively reduce blood and reflux; 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, fixedly connected with needle tip shield in the rear end, 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 folder actinal surface 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 malleation needleless 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 the prolongation pipe, 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 malleation needleless piecing devices inside, position, piston and Connection Block position contacting in position, piston and the housing contacts of Connection Block and housing contacts are installed first sealing ring, second sealing ring, the 3rd sealing ring respectively, and above-mentioned three sealing rings all adopt silicon rubber loop.
Except above-mentioned points, described batching pig adopts the isoamyl glue material.
The beneficial effect that this utility model compared with prior art has is:
1, this indwelling is by arranging Needlestick prevention device, the draw point needle point can be accommodated in the needle tip shield automatically when extracting draw point, and can't restore, residual blood is not stayed on the surface, make the nurse in the whole operation process, can avoid the contact of blood, effectively avoid the infection of haematogenous communicate illness, the also threat that the 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 draw point puncture remaining needle calparine cap, to there be pin to connect and change the needleless connection into, when transfusion finishes, when extracting infusion utensil needleless joint, can produce malleation, flowing out a certain amount of medicinal liquid from catheter tip can guarantee the malleation tube sealing and effectively reduce the blood backflow, both guaranteed patient's drug safety and effectively fluid infusion, be beneficial to the transfusion management regulation, be worth at clinical expansion, can effectively avoid 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 again, guarantee transfusion safety.
Description of drawings
Fig. 1 is axonometric chart of the present utility model;
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 malleation needleless piecing devices.
Among the figure: 1, sheath; 2, conduit; 3, catheter block; 4, flow-stopping clip; 5, prolong pipe; 6, end cap; 7, malleation needleless 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, first sealing ring; 24, shell; 25, spring; 26, the 3rd sealing ring; 27, piston; 28, second sealing ring; 29, oblique fluid infusion passage.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As Fig. 1,2, shown in 3, anti-acupuncture venous detaining 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 malleation needleless piecing devices 7 by prolonging pipe 5, and catheter block 3 communicates with prolongation pipe 5 by the infusion port 9 on the side, draw point 15 communicates with prolonging pipe 5 by the side opening on the side, prolongs flow-stopping clip 4 is installed on the pipe 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, fixedly connected with needle tip shield 16 in the rear end, 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 folder actinal surface of left intermediate plate 19 surpasses the centrage of needle point retaining clip 13, specifically as shown in Figure 4.
Described malleation needleless 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 prolongation pipe 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 malleation needleless piecing devices inside, with Connection Block 22 position contacting first sealing ring 23, second sealing ring 28, the 3rd sealing ring 26 are installed with shell 24 position contacting, piston 27 at Connection Block 22 and shell 24 position contacting, piston 27 respectively, above-mentioned three sealing rings all adopt silicon rubber loop.
This remaining needle has increased malleation needleless piecing devices 7 and Needlestick prevention device 8 on the basis of the disposable use closed of tradition remaining needle.During use, malleation needleless 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.When transfusion finishes, when extracting the joint of infusion utensil, can produce malleation, flow out a certain amount of medicinal liquid from catheter tip, thereby guarantee the malleation tube sealing, effectively reduce blood and reflux; 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 (9)
1. anti-acupuncture venous detaining 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 malleation needleless piecing devices (7) by prolonging pipe (5), catheter block (3) communicates with prolongation pipe (5) by the infusion port on the side (9), draw point (15) communicates with prolonging pipe (5) by the side opening on the side, prolongs pipe (5) flow-stopping clip (4) upward is installed.
2. anti-acupuncture venous detaining 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), fixedly connected with needle tip shield (16) in the rear end, 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-acupuncture venous detaining needle according to claim 2 is characterized in that: the folder actinal surface of described left intermediate plate (19) surpasses the centrage of needle point retaining clip (13).
4. anti-acupuncture venous detaining needle according to claim 1, it is characterized in that: described malleation needleless 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 prolongation pipe (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-acupuncture venous detaining 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-acupuncture venous detaining needle according to claim 4 is characterized in that: described Connection Block (22) is installed first sealing ring (23) with shell (24) position contacting.
7. anti-acupuncture venous detaining needle according to claim 4 is characterized in that: described piston (27) is installed second sealing ring (28) with shell (24) position contacting.
8. anti-acupuncture venous detaining needle according to claim 4 is characterized in that: described piston (27) is installed the 3rd sealing ring (26) with Connection Block (22) position contacting.
9. anti-acupuncture venous detaining needle according to claim 1 is characterized in that: described batching pig (10) employing isoamyl glue material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206815445U CN203043149U (en) | 2012-12-12 | 2012-12-12 | Needling prevention venous indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206815445U CN203043149U (en) | 2012-12-12 | 2012-12-12 | Needling prevention venous indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203043149U true CN203043149U (en) | 2013-07-10 |
Family
ID=48726155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206815445U Expired - Lifetime CN203043149U (en) | 2012-12-12 | 2012-12-12 | Needling prevention venous indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203043149U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN104707208A (en) * | 2015-01-29 | 2015-06-17 | 福建省百仕韦医用高分子股份有限公司 | Remaining needle with unilateral-seam protective sleeve |
| CN104984439A (en) * | 2015-06-19 | 2015-10-21 | 夏瑾梅 | Novel needle stick injury preventing type remaining needle |
| 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 |
-
2012
- 2012-12-12 CN CN2012206815445U patent/CN203043149U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN104707208A (en) * | 2015-01-29 | 2015-06-17 | 福建省百仕韦医用高分子股份有限公司 | Remaining needle with unilateral-seam protective sleeve |
| CN104984439A (en) * | 2015-06-19 | 2015-10-21 | 夏瑾梅 | Novel needle stick injury preventing type remaining needle |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |