CN102836479B - Security-type venous indwelling needle - Google Patents
Security-type venous indwelling needle Download PDFInfo
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- CN102836479B CN102836479B CN201210338477.1A CN201210338477A CN102836479B CN 102836479 B CN102836479 B CN 102836479B CN 201210338477 A CN201210338477 A CN 201210338477A CN 102836479 B CN102836479 B CN 102836479B
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- draw point
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Abstract
The invention discloses a security-type venous indwelling needle. The security-type venous indwelling needle comprises an indwelling needle catheter assembly, a needle tubing assembly and a solution infusion joint assembly, and is characterized in that the catheter assembly comprises an indwelling needle catheter and a catheter base connected behind the indwelling needle catheter; the needle tubing assembly comprises a notch needle tubing and a needle bed, wherein the front part of the notch needle tubing is provided with a side notch, a notch steel needle is inserted in a catheter and the catheter base; the tail part is provided with the needle bed which is exposed out of the catheter base; a plastic joint matched with the inner wall of the catheter base is arranged between the rear part of the catheter base and the needle bed; a needle tip protective stainless steel elastic sheet with a back hook is arranged in the plastic joint; the notch steel needle runs through the needle tip protective stainless steel elastic sheet and the plastic joint and extends in the catheter. According to the invention, the plastic joint is added on the front end of a needle handle, the dangerous needle tip of the front end is packed automatically when the steel needle is pushed out, so that the steel needle with blood after a transfusion is prevented from accidentally injuring doctors or other persons, the possibility of infection of viruses remained on the tip end of the steel needle is reduced, and meanwhile the venous indwelling needle does not pollution the environment.
Description
Technical field
The present invention relates to a kind of transfusion medical apparatus and instruments, specifically belong to a kind of safe type retention needle.
Background technology
Remaining needle be in medical treatment when needs repeatedly carry out infusion treatment within a certain period of time, in order to alleviate the painful medical device that reduces again medical personnel's workload and often use of sufferer simultaneously.Existing common remaining needle is mainly comprised of conduit, catheter block, needle tubing and needle stand, and the side of catheter block is connected with tube for transfusion.And existing safety indwelling needle all strikes the slotted eye below of draw point and flatly makes needle tubing distortion place external diameter be greater than draw point diameter to block rustless steel card with holes.When patient infuses, medical personnel together puncture the flexible catheter of needle tubing and needle tubing outside and enter patient's vein, then clamp needle stand needle tubing is extracted, and flexible catheter and catheter block are stayed for repeatedly transfusion.Yet needle tubing extract after with patient's blood; be exposed to outside; because needle tubing top in the existing needle tubing assembly of common remaining needle is without any protector; its sharp needle point is easy in careless situation to prick medical personnel, patient or other people; the person is damaged, even can cause the infection of some diseases, not only leave potential safety hazard; arbitrarily put, also pollute the environment simultaneously.And the risk that the needle tubing of existing safety indwelling needle is struck flat rear easy existence to be fractureed causes new unsafe factor.
Summary of the invention
The present invention seeks to: a kind of safe type retention needle is provided; this needle point safety guard is simple in structure; humanization designing; easy to use, not needing to increase under the prerequisite of medical personnel's transfusion operation step, used draw point is protected; after can avoiding infusing, draw point is to personal unexpected injury; the probability that elimination catches, protection of the environment, security performance is significantly improved.
Technical scheme of the present invention is: a kind of safe type venous retaining needle, comprise remaining needle catheter component, needle tubing assembly, note infusion connector assembly, it is characterized in that: described conduit tube component comprises indwelling needle catheter and is connected to indwelling needle catheter catheter block below, described needle tubing assembly comprises notch draw point, needle stand, the front portion of described notch draw point is provided with side channel hole, notch draw point is plugged in conduit and catheter block is inner, afterbody is provided with the needle stand that is exposed to catheter block, between the rear portion of described catheter block and needle stand, be provided with the adapter of plastic coordinating with catheter block inwall, adapter of plastic inside is provided with the needle point guard rustless steel flexure strip of taking back hook, notch draw point stretches in conduit through needle point guard rustless steel flexure strip and adapter of plastic.
Preferably, the upper end of described needle point guard rustless steel flexure strip is provided with returning of interior expansion and hooks, bottom is provided with catch, space between catch is less than the diameter of notch draw point, while being inserted with notch draw point in adapter of plastic, catch is overhanged by notch draw point, now the hook that returns of needle point guard rustless steel flexure strip fits snugly on the outer wall of notch draw point, when the needle point of notch draw point retreats in the adapter of plastic that just in time submerges, the hook that returns of rustless steel flexure strip is just in time embedded in slotted eye, when notch draw point continues to exit, returning of rustless steel flexure strip caught on slotted eye adapter of plastic pulled out to catheter block.
Preferably, described adapter of plastic comprises steel pinhole and flexure strip holder, some needle point guard rustless steel flexure strips are evenly embedded in flexure strip holder, the spacing cooperation of internal diameter of described adapter of plastic upper end external diameter and catheter block, upper end external diameter is a bit larger tham the internal diameter of catheter block, when pulling capacity is greater than spacing combining ability, adapter of plastic and catheter block are separated.
Preferably, described note infusion connector assembly comprises flow-stopping clip, long duct, calparine cap, the defeated joint of note and end cap, and described long duct is connected on catheter block, is furnished with flow-stopping clip on long duct, notes defeated joint and is provided with calparine cap, and opposite side is provided with end cap.
Preferably, in described catheter block, be provided with metal wedge, batching pig.
Advantage of the present invention is:
1. the present invention has set up adapter of plastic at needle handle front end, when being extracted, draw point automatically the needle point of front end danger is wrapped up, avoided the draw point with blood after transfusion to cause unexpected injury to medical personnel or other people, also reduced the probability of staying the most advanced and sophisticated viral communication of draw point, simultaneously can be to environment.
2. the present invention is provided with hook a plurality of times in adapter of plastic, and the optional position of draw point in adapter of plastic in withdrawal process, cannot advance and extract draw point, has guaranteed the accuracy of transfusion.
3. the present invention adopts the locking method that slotted eye catches on, and has kept the original toughness of notch draw point and rigidity.Reduced the medical-risk causing of draw point fracture.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the cutaway view of adapter of plastic;
Fig. 2 is the top view of adapter of plastic
Fig. 3 is the structural representation of state before rustless steel flexure strip is used;
Fig. 4 is the structural representation one of state during rustless steel flexure strip is used;
Fig. 5 is the structural representation two of state during rustless steel flexure strip is used;
Fig. 6 be draw point while extracting rustless steel flexure strip return the structural representation that catches on slotted eye;
Fig. 7 is rustless steel flexure strip structural representation;
Fig. 8 is adapter of plastic and the spacing schematic diagram that coordinates of catheter block;
Fig. 9 is the general assembly schematic diagram of safe type retention needle.
Wherein: 1, conduit; 2, catheter block; 3, metal wedge; 4, batching pig; 5, notch draw point; 6, needle stand; 7, adapter of plastic; 8, rustless steel flexure strip; 9, slotted eye; 10, rustless steel flexure strip returns hook; 11, rustless steel flexure strip catch; 12, note defeated joint; 13, needle tube sheath; 14, flow-stopping clip; 15, long duct; 16, calparine cap; 17, steel pinhole; 18, flexure strip holder; 19, end cap.
The specific embodiment
Embodiment: as shown in Figures 1 to 4, described conduit tube component comprises indwelling needle catheter 1 and is connected to indwelling needle catheter 1 catheter block 2 below, is provided with metal wedge 3, batching pig 4 in described catheter block 2.Described needle tubing assembly comprises notch draw point 5, needle stand 6, the front portion of described notch draw point 5 is provided with side channel hole 9, notch draw point 5 is plugged in conduit 1 and catheter block 2 inside, afterbody is provided with the needle stand 6 that is exposed to catheter block 2, between the rear portion of described catheter block 2 and needle stand 6, be provided with the adapter of plastic 7 coordinating with catheter block 2 inwalls, adapter of plastic 7 inside are provided with takes back the needle point guard rustless steel flexure strip 8 that hooks 10, and notch draw point 5 stretches in conduit 1 through needle point guard rustless steel flexure strip 8 and adapter of plastic 7.
As shown in Figure 7, the upper end of described needle point guard rustless steel flexure strip 8 is provided with returning of interior expansion and hooks 10, bottom is provided with catch 11, space between catch 11 is less than the diameter of notch draw point 5, while being inserted with notch draw point 5 in adapter of plastic 7, catch 11 is overhanged by notch draw point 5, now the hook 10 that returns of needle point guard rustless steel flexure strip 8 fits snugly on the outer wall of notch draw point 5, when the needle point of notch draw point 5 retreats in the adapter of plastic 7 that just in time submerges, the hook 10 that returns of rustless steel flexure strip 8 is just in time embedded in slotted eye 9, when notch draw point 5 continues to exit, time hook 10 of rustless steel flexure strip 8 catches on slotted eye 9 adapter of plastic 7 is pulled out to catheter block 2.
Described rustless steel flexure strip 8 is stamped to form by stainless steel substrates.
As shown in Figure 1, described adapter of plastic 7 comprises steel pinhole 12 and flexure strip holder 18, some needle point guard rustless steel flexure strips 8 are evenly embedded in flexure strip holder 18, the spacing cooperation of internal diameter of described adapter of plastic 7 upper end external diameters and catheter block 2, upper end external diameter is a bit larger tham the internal diameter of catheter block 2, when pulling capacity is greater than spacing combining ability, adapter of plastic 7 is separated with catheter block 2.
As shown in Figure 9, described note infusion connector assembly comprises flow-stopping clip 14, long duct 15, calparine cap 16, notes defeated joint 12 and end cap 19, and described long duct 15 is connected on catheter block 2, is furnished with flow-stopping clip 14 on long duct 15, note defeated joint 12 and be provided with calparine cap 16, opposite side is provided with end cap 19.
Operation principle of the present invention is as follows:
Before use, notch draw point 5 is through adapter of plastic 7, and the catch 11 of rustless steel flexure strip 8 can be strutted by notch draw point 5, and time hook 10 of while rustless steel flexure strip 8 is also softened, makes the catch 11 of rustless steel flexure strip 8 and return hook 10 to closely cooperate and notch draw point 5 outer walls.
During use, with hands clamping needle stand 6, there is the notch draw point 5 of conduit 1 to thrust vein in cover, then notch draw point 5 is exited to conduit 1 backward, and extract out from the metal wedge 3 of catheter block 2 and batching pig 4.When notch draw point 5 is extracted, once notch draw point 5, retreat to slotted eye 9, returning of rustless steel flexure strip 8 hooks in 10 meeting embedding slotted eyes 9.Due to what have several rustless steel flexure strips 8, return to hook 10, so the side channel hole 9 of notch draw point 5 is torqued into and arbitrarily angledly all can be caught on.While after this pulling out notch draw point 5 toward outside again, final adapter of plastic 7 is along with needle stand 6 is extracted disengaging catheter block 2 together with notch draw point 5, and now the needle point of notch draw point, is limited in, in this adapter of plastic, no longer having danger.
Like this; when pulling out notch draw point 5, the present invention automatically the needle point of front end danger is protected; avoided the draw point with blood after transfusion to cause unexpected injury to medical personnel or other people; also reduced the probability of staying the most advanced and sophisticated viral communication of draw point; make medical personnel need not especially note carefully placing needle tubing; and can not change the use habit of vein puncture, convenient and practical.
Certainly above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All modifications that the spirit of main technical schemes is done according to the present invention, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. a safe type venous retaining needle, comprise remaining needle catheter component, needle tubing assembly, note infusion connector assembly, it is characterized in that: described conduit tube component comprises indwelling needle catheter (1) and is connected to indwelling needle catheter (1) catheter block (2) below, described needle tubing assembly comprises notch draw point (5), needle stand (6), the front portion of described notch draw point (5) is provided with side channel hole (9), notch draw point (5) is plugged in conduit (1) and catheter block (2) inside, afterbody is provided with the needle stand (6) that is exposed to catheter block (2), between the rear portion of described catheter block (2) and needle stand (6), be provided with the adapter of plastic (7) coordinating with catheter block (2) inwall, adapter of plastic (7) inside is provided with the needle point guard rustless steel flexure strip (8) of taking back hook (10), notch draw point (5) stretches in conduit (1) through needle point guard rustless steel flexure strip (8) and adapter of plastic (7).
2. safe type venous retaining needle according to claim 1, it is characterized in that: the upper end of described needle point guard rustless steel flexure strip (8) is provided with returning of interior expansion and hooks (10), bottom is provided with catch (11), space between catch (11) is less than the diameter of notch draw point (5), while being inserted with notch draw point (5) in adapter of plastic (7), catch (11) is overhanged by notch draw point (5), now the hook (10) that returns of needle point guard rustless steel flexure strip (8) fits snugly on the outer wall of notch draw point (5), when the needle point of notch draw point (5) retreats in the adapter of plastic that just in time submerges (7), the hook (10) that returns of rustless steel flexure strip (8) is just in time embedded in slotted eye (9), when notch draw point (5) continues to exit, time hook (10) of rustless steel flexure strip (8) catches on slotted eye (9) adapter of plastic (7) is pulled out to catheter block (2).
3. safe type venous retaining needle according to claim 1, it is characterized in that: described adapter of plastic (7) comprises steel pinhole (12) and flexure strip holder (18), some needle point guard rustless steel flexure strips (8) are evenly embedded in flexure strip holder (18), the spacing cooperation of internal diameter of described adapter of plastic (7) upper end external diameter and catheter block (2), upper end external diameter is a bit larger tham the internal diameter of catheter block (2), when pulling capacity is greater than spacing combining ability, adapter of plastic (7) is separated with catheter block (2).
4. safe type venous retaining needle according to claim 1, it is characterized in that: described note infusion connector assembly comprises flow-stopping clip (14), long duct (15), calparine cap (16), notes defeated joint (12) and end cap (19), described long duct (15) is connected on catheter block (2), on long duct (15), is furnished with flow-stopping clip (14), note defeated joint (12) and be provided with calparine cap (16), opposite side is provided with end cap (19), and described note infusion connector is selected needleless joint, positive pressure connector.
5. safe type venous retaining needle according to claim 1, is characterized in that: in described catheter block (2), be provided with metal wedge (3), batching pig (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338477.1A CN102836479B (en) | 2012-09-13 | 2012-09-13 | Security-type venous indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338477.1A CN102836479B (en) | 2012-09-13 | 2012-09-13 | Security-type venous indwelling needle |
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| Publication Number | Publication Date |
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| CN102836479A CN102836479A (en) | 2012-12-26 |
| CN102836479B true CN102836479B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210338477.1A Active CN102836479B (en) | 2012-09-13 | 2012-09-13 | Security-type venous indwelling needle |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9168354B2 (en) * | 2013-03-14 | 2015-10-27 | Hollister Incorporated | Sleeveless urinary catheters with protective tip |
| CN103110997B (en) * | 2013-03-14 | 2015-06-17 | 苏州大学 | Straight type single-hand remaining needle |
| WO2014169427A1 (en) * | 2013-04-16 | 2014-10-23 | 福建省百仕韦医用高分子股份有限公司 | Connecting plug component of telescoping protected indwelling needle |
| CN103463691B (en) * | 2013-09-26 | 2015-06-10 | 青岛大学医学院附属医院 | Venous indwelling needle for hemodialysis |
| CN105107058B (en) * | 2015-09-22 | 2018-11-02 | 四川省人民医院 | A kind of ellipse shunt safety type remaining needle |
| CN108065987B (en) * | 2016-11-14 | 2023-10-31 | 江苏威茂医疗科技有限公司 | Safe type sleeve needle |
| CN106730146A (en) * | 2017-01-24 | 2017-05-31 | 盛林 | A kind of Novel anti-stab hinders transfusion needle |
| CN106730147A (en) * | 2017-02-15 | 2017-05-31 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure remaining needle |
| CN107088241A (en) * | 2017-05-18 | 2017-08-25 | 盛林 | A kind of Novel anti-stab hinders precision filter infusion set |
| CN108578825B (en) * | 2018-05-17 | 2023-11-24 | 浙江百获健康科技有限公司 | Plugging type intravenous infusion catheter device |
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| CN2810623Y (en) * | 2005-07-21 | 2006-08-30 | 威海洁瑞医用制品有限公司 | Enclosed safety intravenous retention needle |
| CN201164650Y (en) * | 2007-09-28 | 2008-12-17 | 桂茶华 | Ultra thin type venous indwelling needle with negative-pressure |
| CN201939797U (en) * | 2011-01-26 | 2011-08-24 | 天津市百利康泰生物技术有限公司 | Pipe-sealing device for intravenous indwelling needle |
| CN202010359U (en) * | 2010-09-05 | 2011-10-19 | 张国 | Double safety indwelling needle |
| CN102641528A (en) * | 2012-05-08 | 2012-08-22 | 江苏苏云医疗器材有限公司 | Safety remaining needle |
| CN202822325U (en) * | 2012-09-13 | 2013-03-27 | 苏州林华医疗器械有限公司 | Secure venous indwelling needle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058790A1 (en) * | 2010-11-05 | 2012-05-10 | 王国胜 | Double safety indwelling needle |
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2012
- 2012-09-13 CN CN201210338477.1A patent/CN102836479B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810623Y (en) * | 2005-07-21 | 2006-08-30 | 威海洁瑞医用制品有限公司 | Enclosed safety intravenous retention needle |
| CN201164650Y (en) * | 2007-09-28 | 2008-12-17 | 桂茶华 | Ultra thin type venous indwelling needle with negative-pressure |
| CN202010359U (en) * | 2010-09-05 | 2011-10-19 | 张国 | Double safety indwelling needle |
| CN201939797U (en) * | 2011-01-26 | 2011-08-24 | 天津市百利康泰生物技术有限公司 | Pipe-sealing device for intravenous indwelling needle |
| CN102641528A (en) * | 2012-05-08 | 2012-08-22 | 江苏苏云医疗器材有限公司 | Safety remaining needle |
| CN202822325U (en) * | 2012-09-13 | 2013-03-27 | 苏州林华医疗器械有限公司 | Secure venous indwelling needle |
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| Publication number | Publication date |
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| CN102836479A (en) | 2012-12-26 |
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Address after: Wuzhong District Mudu town of Suzhou city in Jiangsu Province, 215101 Shandong Road No. 98 Patentee after: SUZHOU LINHUA MEDICAL INSTRUMENT CO., LTD. Address before: Wuzhong District Mudu town of Suzhou city in Jiangsu Province, 215101 Shandong Road No. 98 Patentee before: Linhua Medical Appliances Co., Ltd., Suzhou |