CN104056324A - Venous indwelling needle and application method thereof - Google Patents
Venous indwelling needle and application method thereof Download PDFInfo
- Publication number
- CN104056324A CN104056324A CN201410295390.XA CN201410295390A CN104056324A CN 104056324 A CN104056324 A CN 104056324A CN 201410295390 A CN201410295390 A CN 201410295390A CN 104056324 A CN104056324 A CN 104056324A
- Authority
- CN
- China
- Prior art keywords
- needle
- liquid storage
- storage cylinder
- transfusion
- indwelling needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a venous indwelling needle and an application method thereof. The venous indwelling needle comprises an indwelling needle bed and an indwelling needle hose; a sealing column made of a soft and elastic medical material is arranged in the cavity of the indwelling needle bed, and an enclosed-type liquid storage cavity used for generating positive pressure is formed in the sealing column; moreover, a laminar structure is arranged between the bottom face of the liquid storage cavity and the bottom face of the sealing column; a micropore formed in the laminar structure after the laminar structure is punctured through a puncture needle forms a check valve structure through the elasticity of the micropore. The invention aims to provide the venous indwelling needle which is novel and simple in structure and low in manufacturing cost, has a reliable positive pressure function and is capable of effectively preventing blood from flowing back for a long time.
Description
Technical field
The present invention relates to a kind of venous detaining needle and using method thereof, belong to technical field of medical instruments.
Background technology
Transfusion almost can be inputted human body by blood vessel by all medicinal liquids, realize treatment and prophylactic object, clinical in, cause for avoiding repeatedly puncturing blood vessel damage and minimizing patient misery, also for alleviating medical personnel's manipulation strength, generally used iv cannule (pipe) technology.The iv cannule technology of present clinical use is by heparin sealing cap mostly, puncture needle, Paracentesis needle holder, retaining needle flexible tube, indwelling needle, indwelling needle-protecting sleeve composition, its remaining needle does not all have positive pressure devices substantially, in use need to use heparin sodium to seal indwelling needle tubing, to reach the object that does not produce thromboembolism in indwelling needle tubing, simultaneously transfusion with indwelling needle tubing is carried out to the process of anticoagulant sealing in all need to use acupuncture to be connected, nurse's workload and labor intensity are so virtually increased, also danger simultaneously that exist medical personnel to be accidentally injured by acupuncture, for the existence of the problems referred to above, Chinese patent CN200810140985.2 discloses a kind of I type iv cannule with positive-pressure function, Chinese patent CN201010582336.5 discloses a kind of thrombosis prevention device of venous detaining needle, disclosed technical scheme is all to adopt the piston that can move in indwelling needle cavity to produce malleation in case Hemostatic Oral Liquid backflow and the thrombosis phenomenon that causes above.But above-mentioned disclosed technical scheme all has complex structure, the problem that cost is higher, particularly the repeatedly mobile sealing property both having reduced between piston and remaining needle cavity of piston causes the reduction of its malleation performance, there is the phenomenon of leakage, cause its preventing thrombosis effect to be lost efficacy, need to again inject and siphunculus, thereby can not effectively reach the object of blood return prevention, have simultaneously and in implementation process, need medical personnel carefully to operate just the backflow of anti-Hemostatic Oral Liquid veritably (or being adverse current) in strict accordance with the step of regulation, thereby having limited it applies, particularly be unfavorable for the universal of basic medical unit.
Summary of the invention
The object of the invention is to for above-mentioned existing problems and deficiency, provide a kind of novel structure simple, cost of manufacture is cheap, and has venous detaining needle and the using method thereof that can effectively and for a long time prevent blood backflow of reliable positive-pressure function.
Technical scheme of the present invention is achieved in that
Venous detaining needle of the present invention, comprise indwelling needle and retaining needle flexible tube thereof, be characterized in being provided with in described indwelling needle cavity a use soft there is the sealing column that elastic medical material is made, and in sealing post, be provided with an enclosed type liquid storage cylinder for generation of malleation, and be a flaky texture between the bottom surface of this liquid storage cylinder and sealing column bottom surface, this flaky texture is formed as an one-way valve structures at the micropore that is punctured the broken rear formation of acupuncture by the elasticity of itself, after puncture needle is extracted, this micropore automatic retracting and effectively stop the blood backflow in retaining needle flexible tube, and when storing in liquid storage cylinder after malleation medicinal liquid, this micropore can under positive pressure, open and make medicinal liquid in liquid storage cylinder slowly drop to retaining needle flexible tube in and press to and stop blood backflow in retaining needle flexible tube to vein blood vessel, avoid the formation of thrombosis.
Wherein, for further ensureing that the micropore on the flaky texture between above-mentioned liquid storage cylinder bottom surface and sealing column bottom surface can be formed as check valve more reliably, the thickness of above-mentioned flaky texture is 0.2～1mm.
For reduce the probability of blood backflow as far as possible, reduce as much as possible the space bottom sealing column and between retaining needle flexible tube in indwelling needle cavity, the bottom of above-mentioned sealing column is the inverted cone-shaped structure that can match with indwelling needle cavity bottom.
Produce time of malleation for further extending liquid storage cylinder, thereby effectively extend and prevent the time of blood backflow, and make its structure more reliable and improve its service life, the liquid storage cylinder in above-mentioned sealing column is the closing in shape structure of a wide narrow base in top.
For making indwelling needle be fixed on easily patient's transfusion part and the operation that facilitates nurse, above-mentioned indwelling needle both sides are formed with respectively fin.
The using method of venous detaining needle of the present invention, is characterized in: the tube sealing operation finishing after transfusion comprises the steps:
I. part extract transfusion needle to the infusion hole of described transfusion needle front end to liquid storage cylinder;
II. the roller extruding tube for transfusion of the actuator of rolling transfusion device, make the medicinal liquid pressurized in tube for transfusion, flow into liquid storage cylinder through the infusion hole of described transfusion needle front end, thereby make the pressure in described liquid storage cylinder be greater than indwelling needle cavity bottom space;
III. all extract described transfusion needle, owing to having pressure differential between described liquid storage cylinder and indwelling needle cavity bottom space, the medicinal liquid in described liquid storage cylinder flows into retaining needle flexible tube through micropore automatic slowly.
The present invention is due to the structure that adopts tool to combine with indwelling needle cavity by the sealing column of liquid storage cylinder, both can utilize the sealing column tiny space segment of seal isolation retaining needle flexible tube part and indwelling needle cavity bottom reliably, ensure to there will not be the phenomenon outside blood backflow indwelling needle cavity after using puncture needle to puncture, both made medical personnel's extracting with one-handed performance puncture needle easily, effectively prevent again patient and medical personnel's cross infection, nor there will be the phenomenon of tenderness patient's blood vessel, and avoid the pollution of surrounding to medicinal liquid and blood, reach the object of safe infusion.Utilize dexterously again the non-return valve function of the micropore on the flaky texture between malleation chamber and the sealing column bottom surface that the liquid storage cylinder in sealing column forms after transfusion completes, utilize the interior medicinal liquid storing of this malleation chamber slowly to permeate and drip along the puncture micropore of liquid storage cylinder bottom, the backflow of effectively and reliably anti-Hemostatic Oral Liquid, and operate quite simple, be easy to grasp, be conducive to applying at each different medical unit.When its operational applications, only need be in the time that medicinal liquid be totally lost soon, in the time extracting transfusion needle, transfusion needle is stopped a little and is adjusted in liquid storage cylinder the adjusting button of transfusion device, making to regulate button to make suddenly medicinal liquid in tube for transfusion produce flashy outburst to last pushing away flows and injects in liquid storage cylinder, make to store in this liquid storage cylinder the medicinal liquid of malleation, thereby the gas compressing in this liquid storage cylinder forms enough large malleation, and extracting after transfusion needle, medicinal liquid in this liquid storage cylinder is under its positive pressure, can be lentamente punctured in the miniature pierced holes that pin and transfusion needle pierce through formation its bottom and drop in retaining needle flexible tube and continue to press to vein blood vessel from it, until the pressure in liquid storage cylinder forms a kind of poised state while equating with the blood pressure in human vein, effectively ensure that blood can not produce backflow for a long time yet, reliably and safely avoid the formation of thrombosis, and (most of tube-sealing solutions are anticoagulant not need to adopt anti-freezing liquid tube sealing, some patient bans use of), both alleviated nurse's labor intensity, reduce again patient's medical expense, and structure of the present invention and single reliable, cost of manufacture is cheap, practical, be beneficial to and popularize.
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the present invention inserts the structural representation after puncture needle.
Fig. 3 is that the present invention inserts the structural representation after transfusion needle.
Fig. 4 is the structural representation of the present invention while extracting transfusion needle to enclosed type liquid storage cylinder.
Fig. 5 is that the present invention transfers to the structural representation after transfusion needle.
Fig. 6 is the perspective view of sealing column of the present invention.
Fig. 7 is the cross-sectional view of sealing column of the present invention.
Detailed description of the invention
As shown in Fig. 1-Fig. 7, venous detaining needle of the present invention, comprise indwelling needle 1 and retaining needle flexible tube 2 thereof, in described indwelling needle 1 cavity, be provided with a use soft there is the sealing column 3 that elastic medical material is made, and in sealing post 3, be provided with an enclosed type liquid storage cylinder 31 for generation of malleation, and be a flaky texture between the bottom surface of this liquid storage cylinder 31 and sealing column 3 bottom surfaces, this flaky texture is formed as an one-way valve structures at the micropore that is punctured the broken rear formation of acupuncture by the elasticity of itself, after puncture needle is extracted, this micropore automatic retracting and effectively stop the blood backflow in retaining needle flexible tube 2, and when storing in liquid storage cylinder 31 after malleation medicinal liquid, this micropore can under positive pressure, open and make medicinal liquid in liquid storage cylinder slowly drop to retaining needle flexible tube 2 in and press to and stop blood backflow in retaining needle flexible tube to vein blood vessel, avoid the formation of thrombosis.Wherein, for further ensureing that the micropore on the flaky texture between above-mentioned liquid storage cylinder bottom surface and sealing column bottom surface can be formed as check valve more reliably, the thickness of above-mentioned flaky texture is 0.2～1mm.For reduce the probability of blood backflow as far as possible, reduce as much as possible the space bottom sealing column and between retaining needle flexible tube in indwelling needle cavity, the bottom of above-mentioned sealing column 3 is the inverted cone-shaped structure that can match with indwelling needle cavity bottom.Produce time of malleation for further extending liquid storage cylinder, thereby effectively extend and prevent the time of blood backflow, and make its structure more reliable and improve its service life, the liquid storage cylinder in above-mentioned sealing column 3 is the closing in shape structure of a wide narrow base in top.For making indwelling needle be fixed on easily patient's transfusion part and the operation that facilitates nurse, above-mentioned indwelling needle 1 both sides are formed with respectively fin.
The using method of venous detaining needle of the present invention, is characterized in: the tube sealing operation finishing after transfusion comprises the steps:
I. part extract transfusion needle to the infusion hole of described transfusion needle front end to liquid storage cylinder;
II. the roller extruding tube for transfusion of the actuator of rolling transfusion device, make the medicinal liquid pressurized in tube for transfusion, flow into liquid storage cylinder through the infusion hole of described transfusion needle front end, thereby make the pressure in described liquid storage cylinder be greater than indwelling needle cavity bottom space;
III. all extract described transfusion needle, owing to having pressure differential between described liquid storage cylinder and indwelling needle cavity bottom space, the medicinal liquid in described liquid storage cylinder flows into retaining needle flexible tube through micropore automatic slowly.
The present invention is due to the structure that adopts tool to combine with indwelling needle cavity by the sealing column of liquid storage cylinder, both can utilize the sealing column tiny space segment of seal isolation retaining needle flexible tube part and indwelling needle cavity bottom reliably, ensure to there will not be the phenomenon outside blood backflow indwelling needle cavity after using puncture needle to puncture, both made medical personnel's extracting with one-handed performance puncture needle easily, effectively prevent again patient and medical personnel's cross infection, nor there will be the phenomenon of tenderness patient's blood vessel, and avoid the pollution of surrounding to medicinal liquid and blood, reach the object of safe infusion.Utilize dexterously again the non-return valve function of the micropore on the flaky texture between malleation chamber and the sealing column bottom surface that the liquid storage cylinder in sealing column forms after transfusion completes, utilize the interior medicinal liquid storing of this malleation chamber slowly to permeate and drip along the puncture micropore of liquid storage cylinder bottom, the backflow of effectively and reliably anti-Hemostatic Oral Liquid, and operate quite simple, be easy to grasp, be conducive to applying at each different medical unit.When its operational applications, only need be in the time that medicinal liquid be totally lost soon, in the time extracting transfusion needle, transfusion needle is stopped a little and is adjusted in liquid storage cylinder the adjusting button of transfusion device, making to regulate button to make suddenly medicinal liquid in tube for transfusion produce flashy outburst to last pushing away flows and injects in liquid storage cylinder, make to store in this liquid storage cylinder the medicinal liquid of malleation, thereby the gas compressing in this liquid storage cylinder forms enough large malleation, and extracting after transfusion needle, medicinal liquid in this liquid storage cylinder is under its positive pressure, can be lentamente punctured in the miniature pierced holes that pin and transfusion needle pierce through formation its bottom and drop in retaining needle flexible tube and continue to press to vein blood vessel from it, until the pressure in liquid storage cylinder forms a kind of poised state while equating with the blood pressure in human vein, effectively ensure that blood can not produce backflow for a long time yet, reliably and safely avoid the formation of thrombosis, and (most of tube-sealing solutions are anticoagulant not need to adopt anti-freezing liquid tube sealing, some patient bans use of), both alleviated nurse's labor intensity, reduce again patient's medical expense, and structure of the present invention and single reliable, cost of manufacture is cheap, practical, be beneficial to and popularize.
The present invention describes by embodiment, but the present invention is not construed as limiting, with reference to description of the invention, other variations of the disclosed embodiments, as the professional person for this area easily expects, within such variation should belong to the scope of the claims in the present invention restriction.
Claims (6)
1. a venous detaining needle, comprise indwelling needle (1) and retaining needle flexible tube (2) thereof, it is characterized in that being provided with in described indwelling needle (1) cavity a use soft there is the sealing column (3) that elastic medical material is made, and in sealing post (3), be provided with an enclosed type liquid storage cylinder (31) for generation of malleation, and be a flaky texture between the bottom surface of this liquid storage cylinder (31) and sealing column (3) bottom surface, this flaky texture is formed as an one-way valve structures at the micropore that is punctured the broken rear formation of acupuncture by the elasticity of itself, after puncture needle is extracted, this micropore automatic retracting and effectively stop the blood backflow in retaining needle flexible tube (2), and when storing after malleation medicinal liquid in liquid storage cylinder (31), this micropore can under positive pressure, open and make medicinal liquid in liquid storage cylinder slowly drop to retaining needle flexible tube (2) in and press to and stop blood backflow in retaining needle flexible tube to vein blood vessel, avoid the formation of thrombosis.
2. venous detaining needle according to claim 1, the thickness that it is characterized in that above-mentioned flaky texture is 0.2～1mm.
3. venous detaining needle according to claim 1, the bottom that it is characterized in that above-mentioned sealing column (3) is the inverted cone-shaped structure that can match with indwelling needle cavity bottom.
4. venous detaining needle according to claim 1, is characterized in that the liquid storage cylinder in above-mentioned sealing column (3) is the closing in shape structure of a wide narrow base in top.
5. venous detaining needle according to claim 1, is characterized in that above-mentioned indwelling needle (1) both sides are formed with respectively fin.
6. a using method for venous detaining needle as claimed in claim 1, is characterized in that: the tube sealing operation finishing after transfusion comprises the steps:
I. part extract transfusion needle to the infusion hole of described transfusion needle front end to liquid storage cylinder (31);
II. the roller extruding tube for transfusion of the actuator of rolling transfusion device, make the medicinal liquid pressurized in tube for transfusion, infusion hole through described transfusion needle front end flows into liquid storage cylinder (31), thereby makes the pressure in described liquid storage cylinder (31) be greater than indwelling needle (1) cavity bottom space;
III. all extract described transfusion needle, owing to having pressure differential between described liquid storage cylinder (31) and indwelling needle (1) cavity bottom space, the medicinal liquid in described liquid storage cylinder (31) flows into retaining needle flexible tube (2) through micropore automatic slowly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410295390.XA CN104056324B (en) | 2014-06-27 | 2014-06-27 | Venous indwelling needle and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410295390.XA CN104056324B (en) | 2014-06-27 | 2014-06-27 | Venous indwelling needle and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104056324A true CN104056324A (en) | 2014-09-24 |
| CN104056324B CN104056324B (en) | 2017-02-15 |
Family
ID=51544437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410295390.XA Active CN104056324B (en) | 2014-06-27 | 2014-06-27 | Venous indwelling needle and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104056324B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211046A (en) * | 2018-01-09 | 2018-06-29 | 韩笑峰 | A kind of preventing thrombosis venous detaining needle and its application method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149632A (en) * | 1998-04-17 | 2000-11-21 | Smiths Industries Public Limited Company | Self-sealing septa |
| CN1845768A (en) * | 2001-05-25 | 2006-10-11 | 贝克顿迪肯森公司 | Catheter having a low drag septum |
| CN201286927Y (en) * | 2008-08-26 | 2009-08-12 | 江西洪达医疗器械集团有限公司 | Sealing batching plug of venous indwelling needle |
| CN202844311U (en) * | 2011-10-06 | 2013-04-03 | 贝克顿·迪金森公司 | Catheter assembly and catheter assembly system |
| CN103330970A (en) * | 2013-07-25 | 2013-10-02 | 谢世庚 | Automatically-sealed thrombus-prevented venous indwelling needle and use method thereof |
| CN204050514U (en) * | 2014-06-27 | 2014-12-31 | 陈伟权 | A kind of venous detaining needle |
-
2014
- 2014-06-27 CN CN201410295390.XA patent/CN104056324B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149632A (en) * | 1998-04-17 | 2000-11-21 | Smiths Industries Public Limited Company | Self-sealing septa |
| CN1845768A (en) * | 2001-05-25 | 2006-10-11 | 贝克顿迪肯森公司 | Catheter having a low drag septum |
| CN201286927Y (en) * | 2008-08-26 | 2009-08-12 | 江西洪达医疗器械集团有限公司 | Sealing batching plug of venous indwelling needle |
| CN202844311U (en) * | 2011-10-06 | 2013-04-03 | 贝克顿·迪金森公司 | Catheter assembly and catheter assembly system |
| CN103330970A (en) * | 2013-07-25 | 2013-10-02 | 谢世庚 | Automatically-sealed thrombus-prevented venous indwelling needle and use method thereof |
| CN204050514U (en) * | 2014-06-27 | 2014-12-31 | 陈伟权 | A kind of venous detaining needle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211046A (en) * | 2018-01-09 | 2018-06-29 | 韩笑峰 | A kind of preventing thrombosis venous detaining needle and its application method |
| CN108211046B (en) * | 2018-01-09 | 2020-12-01 | 刘芹 | Anti-thrombus venous indwelling needle and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104056324B (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203971057U (en) | A kind of remaining needle | |
| CN203989265U (en) | A kind of preventing thrombosis venous detaining needle | |
| CN205041878U (en) | Infusion of needleless malleation connects | |
| CN203609712U (en) | Long catheter structure for intravenous indwelling needle | |
| CN107096112A (en) | A kind of indwelling emergency treatment conduit thrombosis prevention device | |
| CN203971056U (en) | A kind of remaining needle | |
| CN104043161A (en) | Straight-type indwelling needle | |
| CN106620938A (en) | Closed type straight indwelling needle | |
| CN204050514U (en) | A kind of venous detaining needle | |
| CN202682450U (en) | Positive pressure joint capable of medicating without using needle | |
| CN203724533U (en) | Long catheter of vein indwelling needle | |
| CN104606739A (en) | Anti-thrombotic safety cap for venous indwelling needle and using method thereof | |
| CN204411414U (en) | The anti-blood of a kind of venous detaining needle fastens safety head | |
| CN205948130U (en) | Non return formula is prevented embolism and is kept somewhere needle | |
| CN104056324A (en) | Venous indwelling needle and application method thereof | |
| CN204072260U (en) | A kind of arterial puncture needle | |
| CN104740718B (en) | Curved bag double-pressure Y-shaped indwelling needle | |
| CN203971058U (en) | A kind of straight type remaining needle | |
| CN205814799U (en) | A kind of Special children syringe | |
| CN204411413U (en) | A kind of remaining needle | |
| CN203898839U (en) | Safe infusion device | |
| CN204219516U (en) | high pressure remaining needle | |
| CN204121527U (en) | A kind of reverse flow resistant indwelling needle | |
| CN203598310U (en) | Flow limiting clamp mechanism of venous indwelling needle | |
| CN203539785U (en) | Rapid infusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |