CN202554636U - Punch-proof and blood return prevention indwelling needle - Google Patents
Punch-proof and blood return prevention indwelling needle Download PDFInfo
- Publication number
- CN202554636U CN202554636U CN2012202249759U CN201220224975U CN202554636U CN 202554636 U CN202554636 U CN 202554636U CN 2012202249759 U CN2012202249759 U CN 2012202249759U CN 201220224975 U CN201220224975 U CN 201220224975U CN 202554636 U CN202554636 U CN 202554636U
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- molectron
- puncture
- needle
- return prevention
- blood return
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Abstract
The utility model provides a punch-proof and blood return prevention indwelling needle. The indwelling needle comprises a puncture steel needle assembly and an indwelling catheter assembly, wherein a check valve for preventing blood from flowing out is arranged in the indwelling catheter assembly; the puncture steel needle assembly is connected with a recycle driving device, and a recycle cylinder for recycling the puncture steel needle assembly is arranged at the rear end of the puncture steel needle assembly; and under driving of the recycle driving device, the puncture steel needle assembly returns back to the recycle cylinder. According to the punch-proof and blood return prevention indwelling needle, in a normal process of withdrawing a puncture steel needle, the check valve is used for blocking blood in the catheter base so as to prevent blood from overflowing and causing pollution, meanwhile, the pinpoint of the puncture needle is shielded in the recycle cylinder, so that medical staff cannot be punctured accidently by the used puncture needle or affected. Furthermore, a spring is arranged in the puncture-proof device, when a lock catch is pressed down to withdraw the needle, the puncture steel needle assembly can automatically return back to the recycle cylinder, so the medical staff can take operation conveniently with one hand.
Description
Technical field
This utility model relates in a kind of medical field the infusion set of using when carrying out venous transfusion to clinical patients, specifically, relates to a kind of remaining needle that can prevent the acupuncture blood return prevention of clinical puncture transfusion usefulness.
Background technology
At present, the use of remaining needle is increasingly extensive clinically, during use; Get into the vein blood vessel of human body through puncture draw point guiding inlying catheter, see blood back after, confirm to puncture successfully; The draw point that will puncture is extracted out; And inlying catheter is retained in the vein blood vessel, external infusion utensil, and medicinal liquid is through inlying catheter input human body.After operator see blood back, must tightly press vein blood vessel with left hand, the right hand is extracted the puncture draw point out and is connected off-the-shelf infusion utensil fast; Infuse, will leak blood, leakage like the not yet done refining of operational motion or not by tight vein blood vessel this moment; Easy Infection Action person, simultaneously, the medical worker is when extracting the puncture draw point out; Often can be stabbed by needle point because of carelessness; Cause infection, if patient is the patient of SARS, AIDS, hepatitis B or other infectious disease, the consequence that cross infection causes is hardly imaginable.
Summary of the invention
The purpose of this utility model is to provide a kind of anti-acupuncture blood return prevention remaining needle, can vein puncture insert inlying catheter after, when withdrawing from puncture needle; Check-valves in the catheter block works; Blood can not outflowed, be convenient to the medical worker and connect infusion device, simultaneously; Puncture needle is shielded in recovery cylinder, thereby stopped the medical worker by exposed puncture needle accidental puncture.
For realizing above-mentioned purpose, this utility model adopts following technical scheme:
A kind of anti-acupuncture blood return prevention remaining needle, it comprises puncture draw point molectron and inlying catheter molectron, and the check-valves that prevents the blood outflow is set in described inlying catheter molectron; Described puncture draw point molectron connects the recovery driving device, and in the rear end of puncture draw point molectron the recovery cylinder that reclaims puncture draw point molectron is set, and under the driving of reclaiming driving device, the draw point molectron that punctures is retracted in the recovery cylinder.
Described inlying catheter molectron comprises that putting of being interconnected stay conduit and catheter block, and it is mid-to stay on the catheter block that conduit is fixed on inner hollow, and check-valves is positioned at the inside of catheter block.
Described check-valves comprises the fixed mount that matches with catheter block internal diameter size, and the core bar of hollow runs through fixed mount, and the front portion of core bar is provided with through hole, and the front end of core bar is provided with plug, and the diameter of plug is more than or equal to the diameter of core bar.
The rear end of core bar is provided with the termination, between described termination and fixed mount, spring is set.
Described puncture draw point molectron comprises needle stand and is fixed on the needle tubing on the needle stand that the pinpoint inclined plane root of needle tubing exposes inlying catheter leading section 0.01～0.5mm; The front top of said needle stand is provided with groove, and this groove matches with snap close.
Described snap close is " Z " type, and the upper end of snap close is for pushing gesture and facial expression, the buckle of lower end for matching with groove.
Described recovery driving device is the compression spring between needle stand and recovery cylinder, and the compression spring housing is on the step of needle stand.
Described recovery cylinder is made up of tube after reclaiming placket and reclaiming, and the interior empty length after its combination is greater than the total length of puncture needle molectron.
Described inlying catheter molectron is outside with puncture draw point molectron, is with protective sleeve.
This utility model is owing to adopted above-mentioned solution; In withdrawing from puncture draw point process normally, the effect of check-valves cuts off blood in catheter block; Can not overflow and pollute; Simultaneously, with the shielding of the needle point of puncture needle in recovery cylinder, thereby the puncture needle accidental puncture medical worker after having prevented to use causes infection.In addition, this utility model is provided with spring in Needlestick prevention device, and when pressing the snap close withdraw of the needle, puncture draw point assembly can be return in the recovery cylinder automatically, makes things convenient for medical worker's one-handed performance.
Description of drawings
Fig. 1 is the structural representation of this utility model puncture draw point molectron, inlying catheter molectron and recovery cylinder.
Fig. 2 is the structural representation of this utility model protective sleeve.
Fig. 3 is the overall structure sketch map of this utility model.
Fig. 4 is the structural representation of this utility model inlying catheter molectron.
Fig. 5 is the structural representation of this utility model puncture draw point molectron.
Fig. 6 is the not structural representation during conducting of this utility model check-valves.
Structural representation when Fig. 7 is the conducting of this utility model check-valves.
Fig. 8 is retracted into the structural representation in the recovery cylinder for this utility model puncture draw point molectron.
Fig. 9 is the structural representation that this utility model inlying catheter molectron is connected with infusion device.
The specific embodiment
Like Fig. 1, Fig. 2, shown in Figure 3, this utility model comprises puncture draw point molectron and inlying catheter molectron, and the check-valves 13 that prevents the blood outflow is set in the inlying catheter molectron; And puncture draw point molectron connects the recovery driving device; And the rear end in puncture draw point molectron is provided with the recovery cylinder that reclaims puncture draw point molectron; Under the driving of reclaiming driving device; Puncture draw point molectron is retracted in the recovery cylinder, and the inlying catheter molectron is with protective sleeve 6 with puncture draw point molectron outside.
As shown in Figure 4; The inlying catheter molectron comprises that putting of being interconnected stay conduit 11 and catheter block 14; Its mid-conduit 11 that stays is fixed on through rivet 12 on the catheter block 14 of inner hollow, and check-valves 13 is positioned at the 6:100 conehead bottom, inside of catheter block 14, and check-valves 13 connects 7 conducting states of infusion device in use; When removing infusion device 7, close automatically, prevent blood backflow effect.
Like Fig. 6, shown in Figure 7, check-valves 13 comprises the fixed mount 133 that matches with catheter block 14 internal diameter sizes, and the core bar 131 of hollow runs through fixed mount 133, and the front portion of core bar 131 is provided with through hole, and the convenient transfusion of through hole is flowed out; And the front end of core bar 131 is provided with plug 134, and this plug 134 is a rubber cushion, and the diameter of plug 134 is more than or equal to the diameter of core bar 131.When transfusion has been flowed, in time close for making check-valves 13, in the rear end of core bar 131 termination 135 is set, between termination 135 and fixed mount 133, spring 132 is set.This utility model inlying catheter put manage successfully after, connect infusion device 7 when beginning to infuse, the modular connection on the infusion device 7 is opened passage with the core bar jacking on the check-valves 13, begins medicinal liquid is imported human body; Transfusion finishes when removing infusion device, and the external force folding disappears, and closing passage under the resilience force effect of the spring 132 of check-valves 13 stops the blood outflow.
As shown in Figure 5, puncture draw point molectron comprises needle stand 22 and is fixed on the needle tubing 21 on the needle stand 22 that wherein the rearward end of needle stand 22 is provided with air lock 23; The top of needle stand 22 is step-like, and the front top of needle stand is provided with groove, and this groove matches with snap close 4.Snap close 4 is " Z " type, and the upper end of snap close 4 is for pushing gesture and facial expression, and the lower end is the buckle that matches with groove, and the middle part is a circular inner hole.After inlying catheter assembly and puncture draw point combination of components put in place, the pinpoint inclined plane root of needle tubing 21 exposed inlying catheter 11 leading sections 0.01～0.5mm.
In the case, reclaiming driving device is the compression spring 5 between needle stand 22 and recovery cylinder, and compression spring 5 is enclosed within on the step of needle stand 22.Recovery cylinder is by reclaiming placket 31 and reclaim back tube 32 and constitute, and the interior empty length after its combination is greater than the total length of puncture needle molectron, and the front end that reclaims placket 31 parts has the chute that cooperates with snap close 4, plays fixed guide snap close 4 and acts on; Compression spring 5 should have enough length and the elastic force draw point molectron that will puncture to return to and reclaim 32 bottom afterwards, and needle point is not exposed.
The work process of this utility model is: remove protective sleeve 6 backs and prepare for venipuncture; After confirming to puncture successfully; After the extraction of puncture draw point was pressed snap close 4 simultaneously, pressed snap close 4, the buckle of snap close 4 separated with needle stand 22; Through the elastic force of compression spring 5, the draw point molectron that will puncture is recovered in recovery cylinder 31,32 bodies.When recovery cylinder 31,32 after puncture draw point molectron is recovered to cylindrical shell 31,32, make the needle point shielding in cylindrical shell 31,32, can not sting and hurt sb.'s feelings.When puncture draw point molectron withdrawed from, the check-valves 13 in the catheter block 14 was excited and works, and at a distance from the outflow of hemostasis liquid, played the blood return prevention effect.
Need to prove that needle point, inlying catheter 11 and the snap close 4 of protective sleeve 6 protection needle tubings 21 are not excited in process is taken in carrying.
Claims (9)
1. anti-acupuncture blood return prevention remaining needle, it comprises puncture draw point molectron and inlying catheter molectron, it is characterized in that: the check-valves (13) that prevents that blood from outflowing is set in described inlying catheter molectron; Described puncture draw point molectron connects the recovery driving device, and in the rear end of puncture draw point molectron the recovery cylinder that reclaims puncture draw point molectron is set, and under the driving of reclaiming driving device, the draw point molectron that punctures is retracted in the recovery cylinder.
2. anti-acupuncture blood return prevention remaining needle according to claim 1; It is characterized in that: described inlying catheter molectron comprises that putting of being interconnected stay conduit (11) and catheter block (14); It is mid-to stay on the catheter block (14) that conduit (11) is fixed on inner hollow, and check-valves (13) is positioned at the inside of catheter block (14).
3. anti-acupuncture blood return prevention remaining needle according to claim 2; It is characterized in that: described check-valves (13) comprises the fixed mount (133) that matches with catheter block (14) internal diameter size; The core bar of hollow (131) runs through fixed mount (133); The front portion of core bar (131) is provided with through hole, and the front end of core bar (131) is provided with plug (134), and the diameter of plug (134) is more than or equal to the diameter of core bar (131).
4. anti-acupuncture blood return prevention remaining needle according to claim 3, it is characterized in that: the rear end of core bar (131) is provided with termination (135), between described termination (135) and fixed mount (133), spring (132) is set.
5. anti-acupuncture blood return prevention remaining needle according to claim 2; It is characterized in that: described puncture draw point molectron comprises needle stand (22) and is fixed on the needle tubing (21) on the needle stand (22) that the pinpoint inclined plane root of needle tubing (21) exposes inlying catheter (11) leading section 0.01～0.5mm; The front top of said needle stand (22) is provided with groove, and this groove matches with snap close (4).
6. anti-acupuncture blood return prevention remaining needle according to claim 5 is characterized in that: described snap close (4) is " Z " type, and the upper end of snap close (4) is for pushing gesture and facial expression, the buckle of lower end for matching with groove.
7. anti-acupuncture blood return prevention remaining needle according to claim 5 is characterized in that: described recovery driving device is for being positioned at the compression spring (5) between needle stand (22) and the recovery cylinder, and compression spring (5) is enclosed within on the step of needle stand (22).
8. anti-acupuncture blood return prevention remaining needle according to claim 1 is characterized in that: described recovery cylinder constitutes by reclaiming placket (31) and reclaiming back tube (32), and the interior empty length after its combination is greater than the total length of puncture needle molectron.
9. anti-acupuncture blood return prevention remaining needle according to claim 1 is characterized in that: described inlying catheter molectron is outside with puncture draw point molectron, is with protective sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202249759U CN202554636U (en) | 2012-05-18 | 2012-05-18 | Punch-proof and blood return prevention indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202249759U CN202554636U (en) | 2012-05-18 | 2012-05-18 | Punch-proof and blood return prevention indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202554636U true CN202554636U (en) | 2012-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202249759U Expired - Lifetime CN202554636U (en) | 2012-05-18 | 2012-05-18 | Punch-proof and blood return prevention indwelling needle |
Country Status (1)
| Country | Link |
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| CN (1) | CN202554636U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272305A (en) * | 2013-05-15 | 2013-09-04 | 浙江康泰医疗器械有限公司 | Novel pen type indwelling needle |
| CN105944178A (en) * | 2016-06-22 | 2016-09-21 | 南京鑫博维新材料技术有限公司 | Auto-disposal auto-exhaustion anti-reflux needleless infusion set |
| CN106063957A (en) * | 2015-04-24 | 2016-11-02 | 北京万生人和科技有限公司 | A kind of venipuncture needle |
| CN106581817A (en) * | 2016-12-23 | 2017-04-26 | 欧阳小青 | Safety puncture needle seat for remaining needle |
| CN108568010A (en) * | 2018-04-28 | 2018-09-25 | 冯莞婷 | Remaining needle |
| CN109663172A (en) * | 2019-01-15 | 2019-04-23 | 苏州林华医疗器械股份有限公司 | Jugular puncture remaining needle |
| CN110251395A (en) * | 2019-07-23 | 2019-09-20 | 四川普瑞斯生物科技有限公司 | A kind of Medical safety type is from the puncture needle that bounces back |
-
2012
- 2012-05-18 CN CN2012202249759U patent/CN202554636U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272305A (en) * | 2013-05-15 | 2013-09-04 | 浙江康泰医疗器械有限公司 | Novel pen type indwelling needle |
| CN106063957A (en) * | 2015-04-24 | 2016-11-02 | 北京万生人和科技有限公司 | A kind of venipuncture needle |
| CN106063957B (en) * | 2015-04-24 | 2022-07-19 | 北京万生人和科技有限公司 | Vein puncture needle |
| CN105944178A (en) * | 2016-06-22 | 2016-09-21 | 南京鑫博维新材料技术有限公司 | Auto-disposal auto-exhaustion anti-reflux needleless infusion set |
| CN105944178B (en) * | 2016-06-22 | 2023-02-14 | 南京鑫博维新材料技术有限公司 | Self-destruction type automatic exhaust anti-reflux needleless infusion apparatus |
| CN106581817A (en) * | 2016-12-23 | 2017-04-26 | 欧阳小青 | Safety puncture needle seat for remaining needle |
| CN108568010A (en) * | 2018-04-28 | 2018-09-25 | 冯莞婷 | Remaining needle |
| CN109663172A (en) * | 2019-01-15 | 2019-04-23 | 苏州林华医疗器械股份有限公司 | Jugular puncture remaining needle |
| CN109663172B (en) * | 2019-01-15 | 2024-03-26 | 苏州林华医疗器械股份有限公司 | Jugular vein puncture indwelling needle |
| CN110251395A (en) * | 2019-07-23 | 2019-09-20 | 四川普瑞斯生物科技有限公司 | A kind of Medical safety type is from the puncture needle that bounces back |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 452331 Xiangjiang West Road, Binhe Town, Luohe, Henan Patentee after: Henan Shugang Jianshi Medical Devices Group Co., Ltd. Address before: 452331 Xiangjiang West Road, Binhe Town, Luohe, Henan Patentee before: Henan Shuguang Jianshi Medical Equipment Group Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160518 Address after: Luohe City, Henan province 462331 Yuanhui District Riverside Metro Xiangjiang Road Patentee after: Henan Shuguang qualied Kang biological Polytron Technologies Inc Address before: 452331 Xiangjiang West Road, Binhe Town, Luohe, Henan Patentee before: Henan Shugang Jianshi Medical Devices Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |