CN104043154B - A kind of dialysis remaining needle with switch - Google Patents
A kind of dialysis remaining needle with switch Download PDFInfo
- Publication number
- CN104043154B CN104043154B CN201410304064.0A CN201410304064A CN104043154B CN 104043154 B CN104043154 B CN 104043154B CN 201410304064 A CN201410304064 A CN 201410304064A CN 104043154 B CN104043154 B CN 104043154B
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- China
- Prior art keywords
- sleeve pipe
- rubber cushion
- connection tube
- switch connection
- screwed union
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Anesthesiology (AREA)
- Urology & Nephrology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The present invention relates to the clinical a kind of dialysis remaining needle with switch carrying out hemodialysis.Circular rubber cushion is bonded in the groove on screwed union sleeve pipe inner tubal wall, one end of switch connection tube embeds the bonding cooperation in one end of catheter block, contact with circular rubber cushion in the pipe of other end embedding screwed union sleeve pipe one end of switch connection tube, the cylindrical boss of switch connection tube is arranged in circular spacing I by Pear-Shaped gap, cylindrical boss can slip in circular spacing II by pushing, and now the other end of switch connection tube passes the Y-shaped otch of circular rubber cushion; The firm injector head bonded together with draw point seat is inserted successively in screwed union sleeve pipe and is stretched out outside conduit by the Y-shaped otch of circular rubber cushion, switch connection tube, catheter block.Effect is: in Clinical practice, eliminate medical personnel's clamp, control the step in blood face, avoid the potential safety hazard such as hemorrhage, underfilling, and alleviate the labor intensity of medical personnel.Structure is simple, be easy to produce, easy to assembly.
Description
Technical field
The present invention relates to the clinical a kind of dialysis remaining needle with switch carrying out hemodialysis.
Technical background
The clinical hemodialysis that carries out more and more uses dialysis remaining needle at present, and dialysis remaining needle is little to human injury, and patient's misery is few, and safety is high.But the dialysis remaining needle operating process more complicated of Clinical practice now, first need after puncture to clamp flexible pipe with medical calm, after open Capsule, then loosen and control medical calm, make blood face just arrive remaining needle seam, finally access blood circuit and carry out dialysis treatment.The medical personnel of said process to operation puncture require higher, need the strength precisely controlling medical calm, can not make blood from overflowing remaining needle interface, avoid polluting and loss of blood, can not make blood face from interface excessively away from, otherwise can bubble be left in pipeline.Need veteran medical personnel just can operate so general, virtually limit the use of dialysis remaining needle.
Summary of the invention
In view of the deficiency that prior art exists, the invention provides a kind of dialysis remaining needle with switch.In Clinical practice, eliminate medical personnel's clamp, control the step in blood face, avoid the potential safety hazard such as hemorrhage, underfilling, and alleviate the labor intensity of medical personnel.
The present invention for achieving the above object, the technical scheme adopted is: a kind of dialysis remaining needle with switch, comprise dialysis remaining needle draw point pipe, be bonded in the draw point seat of draw point pipe afterbody, be entrenched in the tampon of draw point seat afterbody, and be adhered to the conduit of catheter block side, it is characterized in that: also comprise screwed union sleeve pipe, switch connection tube, circular rubber cushion, the tube wall of described screwed union sleeve pipe one end is provided with one section of Pear-Shaped gap, be provided with in Pear-Shaped gap two spacing, be respectively circular spacing I and the spacing II of circle, the other end outer tube wall of screwed union sleeve pipe is provided with spiral mouth, the inner tubal wall of screwed union sleeve pipe is provided with a circle groove, the outer tube wall of described switch connection tube is provided with a cylindrical boss, cylindrical boss is provided with a rectangle and pushes away handle, described circular rubber cushion is lamellar, is provided with Y-shaped otch at the center in circular rubber cushion face, and Y-shaped otch is logical otch, described circular rubber cushion is bonded in the groove on screwed union sleeve pipe inner tubal wall, one end of described switch connection tube embeds the bonding cooperation in one end of catheter block, contact with circular rubber cushion in the pipe of other end embedding screwed union sleeve pipe one end of switch connection tube, switch connection tube and screwed union sleeve pipe are interference fit, the cylindrical boss of switch connection tube is arranged in circular spacing I by Pear-Shaped gap, cylindrical boss can slip in circular spacing II by pushing, now the other end of switch connection tube makes rubber cushion realize open mode through the Y-shaped otch of circular rubber cushion, the firm injector head bonded together with draw point seat inserts successively in screwed union sleeve pipe and stretches out outside conduit by the Y-shaped otch of circular rubber cushion, switch connection tube, catheter block, and draw point seat contacts with the other end of screwed union sleeve pipe.
The invention has the beneficial effects as follows: by pushing away handle, cylindrical boss is slided in the spacing I of circle, in circular spacing II, make the pass connection tube other end through the Y-shaped opening be on the rubber cushion of closure state, change the position relationship between switch connection tube and screwed union sleeve pipe, the rubber cushion with Y-shaped opening opened or be provided with in closed helical swagelok, realizes the function opening or closing blood access.In Clinical practice, eliminate medical personnel's clamp, control the step in blood face, avoid the potential safety hazard such as hemorrhage, underfilling, and alleviate the labor intensity of medical personnel.Structure is simple, be easy to produce, easy to assembly, solves the technical problem that prior art exists.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is structural perspective of the present invention;
Fig. 3 is decomposing schematic representation of the present invention;
Fig. 4 is the structural representation of screwed union sleeve pipe of the present invention;
Fig. 5 is the schematic diagram that screwed union sleeve pipe of the present invention and switch connection tube assemble;
Fig. 6 is the circular rubber cushion front view of the present invention.
Detailed description of the invention
As shown in Figures 1 to 6, a kind of dialysis remaining needle with switch, comprise dialysis remaining needle draw point pipe 1, be bonded in the draw point seat 2 of draw point pipe 1 afterbody, be entrenched in the tampon 3 of draw point seat 2 afterbody, and be adhered to the conduit 7 of catheter block 6 side, also comprise screwed union sleeve pipe 4, switch connection tube 5, circular rubber cushion 8.
The tube wall of screwed union sleeve pipe 4 one end is provided with one section of Pear-Shaped gap 4-1, be provided with in Pear-Shaped gap 4-1 two spacing, be respectively circular spacing I4-2 and the spacing II4-3 of circle, the other end outer tube wall of screwed union sleeve pipe 4 is provided with spiral mouth 4-4, the inner tubal wall of screwed union sleeve pipe 4 is provided with a circle groove 4-5.
The outer tube wall of switch connection tube 5 is provided with a cylindrical boss 5-1, cylindrical boss 5-1 is provided with a rectangle and pushes away handle 5-2, and cylindrical boss 5-1 and rectangle push away handle 5-2 and to be formed in one part.
Circular rubber cushion 8 is lamellar, is provided with Y-shaped otch 8-1 at the center of circular rubber cushion 8, and Y-shaped otch 8-1 is logical otch.
Circular rubber cushion 8 is bonded in the groove 4-5 on screwed union sleeve pipe 4 inner tubal wall, by bonding cooperation in one end of one end of switch connection tube 5 embedding catheter block 6, contact with circular rubber cushion 8 in the pipe of other end embedding screwed union sleeve pipe 4 one end of switch connection tube 5, rubber cushion 8 is initial is in closure state, now the cylindrical boss 5-1 of switch connection tube 5 is arranged in circular spacing I4-2 by Pear-Shaped gap 4-1, partial cylindrical shapes boss 5-1 and rectangle push away handle 5-2 and are emerging in outside screwed union sleeve pipe 4, littlely try hard to recommend dynamic rectangle and push away handle 5-2 cylindrical boss 5-1 can be made to slip in circular spacing II4-3, now the other end of switch connection tube 5 makes rubber cushion realize open mode through the Y-shaped otch 8-1 of circular rubber cushion 8, switch connection tube 5 and screwed union sleeve pipe 4 are interference fit.Being inserted successively by the firm needle tubing 1 bonded together with draw point seat 2 stretches out outside conduit 7 by the Y-shaped otch 8-1 on circular rubber cushion 8, switch connection tube 5, catheter block 6 in screwed union sleeve pipe 4, and draw point seat 2 contacts with the other end of screwed union sleeve pipe 4.
Using method
In Clinical practice, medical personnel pinch draw point seat 2 and draw point 1 and conduit 7 are punctured simultaneously and enter human vas, and now, circular rubber cushion 8 is closely enclosed in around draw point 1 because of its whippy material behavior Y-shaped otch 8-1, and this remaining needle is closure state.After puncture puts in place, medical personnel pinch screwed union sleeve pipe 4 on the other hand, another hands pinches draw point seat 2 and slowly extracts draw point 1 out screwed union sleeve pipe 4, draw point 1 detaches in process, and the Y-shaped otch 8-1 of circular rubber cushion 8 forms fine gap around draw point 1, and remaining needle intracavity gas is discharged thus, now blood enters remaining needle tube chamber by conduit 7, while draw point 1 detaches circular rubber cushion 8, the Y-shaped otch 8-1 of circular rubber cushion 8 closes automatically because of elasticity, and blood terminates in circular rubber cushion 8.After draw point 1 detaches completely, the spiral mouth 4-4 of screwed union sleeve pipe 4 one end is connected with hemodialysis tube pipeline connector.After connecting hemodialysis pipeline, medical personnel pinch switch connection tube 5 on the other hand, another hands pinches screwed union sleeve pipe 4, dial rectangle with forefinger and push away handle 5-2, low force promotes screwed union sleeve pipe 4, cylindrical boss 5-1 slips into circular spacing II4-3 by the spacing I4-2 of circle, and now switch connection tube front end is connected with the hemodialysis tube pipeline connector be connected in the spiral mouth 4-4 of screwed union sleeve pipe 4 one end through the Y-shaped otch 8-1 in circular rubber cushion 8, forms path.After normal dialysis completes, medical personnel use styptic cotton to push down puncture orifice, pinch screwed union sleeve pipe 4 and extract conduit 7 in patient vessel.
Claims (1)
1. the dialysis remaining needle with switch, comprise dialysis remaining needle draw point pipe (1), be bonded in the draw point seat (2) of draw point pipe (1) afterbody, be entrenched in the tampon (3) of draw point seat (2) afterbody, and be adhered to the conduit (7) of catheter block (6) side, it is characterized in that: also comprise screwed union sleeve pipe (4), switch connection tube (5), circular rubber cushion (8), the tube wall of described screwed union sleeve pipe (4) one end is provided with one section of Pear-Shaped gap (4-1), be provided with in Pear-Shaped gap (4-1) two spacing, be respectively circular spacing I(4-2) and the spacing II(4-3 of circle), the other end outer tube wall of screwed union sleeve pipe (4) is provided with spiral mouth (4-4), the inner tubal wall of screwed union sleeve pipe (4) is provided with a circle groove (4-5), the outer tube wall of described switch connection tube (5) is provided with a cylindrical boss (5-1), cylindrical boss (5-1) is provided with a rectangle and pushes away handle (5-2), described circular rubber cushion (8) is lamellar, is provided with Y-shaped otch (8-1) at the center in circular rubber cushion (8) face, and Y-shaped otch (8-1) is logical otch, described circular rubber cushion (8) is bonded in the groove (4-5) on screwed union sleeve pipe (4) inner tubal wall, one end of described switch connection tube (5) embeds the bonding cooperation in one end of catheter block (6), contact with circular rubber cushion (8) in the pipe of other end embedding screwed union sleeve pipe (4) one end of switch connection tube (5), switch connection tube (5) and screwed union sleeve pipe (4) are interference fit, the cylindrical boss (5-1) of switch connection tube (5) is arranged on circular spacing I(4-2 by Pear-Shaped gap (4-1)) in, cylindrical boss (5-1) can slip into circular spacing II(4-3 by pushing) in, now the other end of switch connection tube (5) makes rubber cushion (8) realize open mode through the Y-shaped otch (12) of circular rubber cushion (8), firm needle tubing (1) head bonded together with draw point seat (2) inserts successively in screwed union sleeve pipe (4) and stretches out conduit (7) outward by the Y-shaped otch (8-1) of circular rubber cushion (8), switch connection tube (5), catheter block (6), and draw point seat (2) contacts with the other end of screwed union sleeve pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304064.0A CN104043154B (en) | 2014-06-30 | 2014-06-30 | A kind of dialysis remaining needle with switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304064.0A CN104043154B (en) | 2014-06-30 | 2014-06-30 | A kind of dialysis remaining needle with switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104043154A CN104043154A (en) | 2014-09-17 |
| CN104043154B true CN104043154B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410304064.0A Active CN104043154B (en) | 2014-06-30 | 2014-06-30 | A kind of dialysis remaining needle with switch |
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| CN (1) | CN104043154B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104288851A (en) * | 2014-10-29 | 2015-01-21 | 天津哈娜好医材有限公司 | Screw propulsion type dialysis remaining needle and use method |
| CN104288852B (en) * | 2014-11-10 | 2017-02-15 | 天津哈娜好医材有限公司 | Exhaust type dialysis remaining needle with switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015721A (en) * | 2006-02-12 | 2007-08-15 | 董中新 | Artery-vein catherter preventing blood outflow provided with blood sampling opening |
| CN101077433A (en) * | 2006-05-25 | 2007-11-28 | 株式会社榎本 | Lien needle capable of preventing countercurrent flow effectively |
| CN203989182U (en) * | 2014-06-30 | 2014-12-10 | 天津哈娜好医材有限公司 | The dialysis remaining needle that can stop blooding |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003199822A (en) * | 2002-01-10 | 2003-07-15 | Nippon Sherwood Medical Industries Ltd | Indwelling needle with infectious disease preventing function and needle thrust accident preventing function |
| JP4862478B2 (en) * | 2006-05-11 | 2012-01-25 | ニプロ株式会社 | Indwelling needle |
| US7534232B2 (en) * | 2007-01-05 | 2009-05-19 | Nipro Corporation | Indwelling needle |
-
2014
- 2014-06-30 CN CN201410304064.0A patent/CN104043154B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015721A (en) * | 2006-02-12 | 2007-08-15 | 董中新 | Artery-vein catherter preventing blood outflow provided with blood sampling opening |
| CN101077433A (en) * | 2006-05-25 | 2007-11-28 | 株式会社榎本 | Lien needle capable of preventing countercurrent flow effectively |
| CN203989182U (en) * | 2014-06-30 | 2014-12-10 | 天津哈娜好医材有限公司 | The dialysis remaining needle that can stop blooding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104043154A (en) | 2014-09-17 |
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