CN104043154A - Dialysis remaining needle with switch - Google Patents
Dialysis remaining needle with switch Download PDFInfo
- Publication number
- CN104043154A CN104043154A CN201410304064.0A CN201410304064A CN104043154A CN 104043154 A CN104043154 A CN 104043154A CN 201410304064 A CN201410304064 A CN 201410304064A CN 104043154 A CN104043154 A CN 104043154A
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- CN
- China
- Prior art keywords
- sleeve pipe
- rubber cushion
- circular
- screwed union
- union sleeve
- 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.)
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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 invention relates to a dialysis remaining needle with a switch. The dialysis remaining needle with the switch is used for hematodialysis treatment in clinic. A circular rubber mat is bonded into a groove in an inner sleeve wall of a spiral connector sleeve, one end of a switch connecting pipe is embedded into one end of a catheter base to be in bonding fit, the other end of the switch connecting pipe is embedded into a pipe at one end of the spiral connector sleeve to be in contact with the circular rubber mat, a cylindrical boss of the switch connecting pipe is arranged n a first circular limiting piece through a calabash-shaped opening, the cylindrical boss can slide into a second circular limiting piece under pressing, and the other end of the switch connecting pipe penetrates through a Y-shaped notch of the circular rubber mat at the time. A steel needle catheter head bonded with a steel needle base is sequentially inserted into the spiral connector sleeve to pass through the Y-shaped notch of the circular rubber mat, the switch connecting pipe and the catheter base to extend out of a catheter. The dialysis remaining needle has the advantages that the steps of clamping the catheter and controlling the blood face of medical workers are omitted in clinic, potential safety hazards of blood overflowing, insufficient filling and the like are avoided, and the labor strength of the medical workers is relieved. The dialysis remaining needle is simple in structure, easy to produce and convenient to assemble.
Description
Technical field
The present invention relates to the clinical a kind of dialysis remaining needle with switch that hemodialysis is used that carries out.
Technical background
The clinical hemodialysis that carries out is more and more used dialysis remaining needle at present, and dialysis remaining needle is little to human injury, and patient is painful few, safe.But the dialysis remaining needle operating process more complicated of present clinical use, after puncture, first need 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.Said process requires higher to the medical personnel of operation puncture, need precisely to control the strength of medical calm, can not make blood from overflowing remaining needle interface, avoids polluting and loss of blood, can not make blood face from interface excessively away from, otherwise can leave bubble in pipeline.So generally need veteran medical personnel just can operate, virtually limited the use of dialysis remaining needle.
Summary of the invention
Deficiency in view of prior art exists, the invention provides a kind of dialysis remaining needle with switch.In clinical use, saved medical personnel's clamps, controlled the step of blood face, avoided the potential safety hazards such as hemorrhage, underfilling, and alleviated medical personnel's labor intensity.
The present invention for achieving the above object, the technical scheme adopting 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 the conduit that is adhered to catheter block one 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, in Pear-Shaped gap, be provided with two spacing, be respectively circular spacing I and circular spacing II, on the other end outer tube wall of screwed union sleeve pipe, be provided with spiral mouth, on the inner tubal wall of screwed union sleeve pipe, be provided with a circle groove, the outer tube wall of described switch connection tube is provided with a cylindrical boss, is provided with a rectangle and pushes away handle on cylindrical boss, described circular rubber cushion is lamellar, at circular rubber cushion Mian center, is provided with Y-shaped otch, 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, in the pipe of other end embedding screwed union sleeve pipe one end of switch connection tube, contact with circular rubber cushion, 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 bonding together with draw point seat inserts successively Y-shaped otch, switch connection tube, the catheter block by circular rubber cushion in screwed union sleeve pipe and stretches out outside conduit, and draw point seat contacts with the other end of screwed union sleeve pipe.
The invention has the beneficial effects as follows: by pushing, push away handle cylindrical boss is slided in the spacing I of circle, in circular spacing II, make to close the connection tube other end through the Y-shaped opening on the rubber cushion in closure state, changed the position relationship between switch connection tube and screwed union sleeve pipe, open or closed helical swagelok in the rubber cushion with Y-shaped opening that is provided with, realize the function that opens or closes blood access.In clinical use, saved medical personnel's clamps, controlled the step of blood face, avoided the potential safety hazards such as hemorrhage, underfilling, and alleviated medical personnel's labor intensity.Simple in structure, be easy to produce, easy to assembly, solved the technical problem that prior art exists.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is structure perspective view 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 of screwed union sleeve pipe of the present invention and the assembling of switch connection tube;
Fig. 6 is the circular rubber cushion front view of the present invention.
The specific embodiment
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 draw point pipe 1 afterbody draw point seat 2, be entrenched in the tampon 3 of draw point seat 2 afterbodys, and the conduit 7 that is adhered to catheter block 6 one sides, 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, in Pear-Shaped gap 4-1, be provided with two spacing, be respectively circular spacing I4-2 and circular spacing II4-3, on the other end outer tube wall of screwed union sleeve pipe 4, be provided with spiral mouth 4-4, on the inner tubal wall of screwed union sleeve pipe 4, be provided with a circle groove 4-5.
The outer tube wall of switch connection tube 5 is provided with a cylindrical boss 5-1, is provided with a rectangle and pushes away handle 5-2 on cylindrical boss 5-1, and cylindrical boss 5-1 and rectangle push away the handle 5-2 part that is formed in one.
Circular rubber cushion 8 is lamellar, at circular rubber cushion 8 Mian centers, is provided with Y-shaped otch 8-1, 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 walls, by bonding cooperation in one end of one end embedding catheter block 6 of switch connection tube 5, in the pipe of other end embedding screwed union sleeve pipe 4 one end of switch connection tube 5, contact with circular rubber cushion 8, rubber cushion 8 is initial 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, part cylindrical 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 moving rectangle and push away handle 5-2 and can make cylindrical boss 5-1 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 is interference fit with screwed union sleeve pipe 4.1 of the firm needle tubing bonding together with draw point seat 2 is inserted successively in screwed union sleeve pipe 4 and stretched out outside conduit 7 by Y-shaped otch 8-1, switch connection tube 5, catheter block 6 on circular rubber cushion 8, and draw point seat 2 contacts with the other end of screwed union sleeve pipe 4.
Using method
In clinical use, medical personnel pinch draw point seat 2 draw point 1 and conduit 7 are punctured and enter human vas simultaneously, 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 at draw point 1, and remaining needle intracavity gas is discharged thus, now blood enters remaining needle tube chamber by conduit 7, when draw point 1 detaches circular rubber cushion 8, the Y-shaped otch 8-1 of circular rubber cushion 8 is automatically closed 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.Connect after hemodialysis pipeline, medical personnel pinch switch connection tube 5 on the other hand, another hands pinches screwed union sleeve pipe 4, with forefinger, dial rectangle and push away handle 5-2, gently try hard to recommend moving 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 being connected in screwed union sleeve pipe 4 one end spiral mouth 4-4 through the Y-shaped otch 8-1 in circular rubber cushion 8, forms path.After normal dialysis, medical personnel use styptic cotton to push down puncture orifice, pinch screwed union sleeve pipe 4 and extract the 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 the conduit (7) that is adhered to catheter block (6) one sides, 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), in Pear-Shaped gap (4-1), be provided with two spacing, be respectively circular spacing I(4-2) and circular spacing II(4-3), on the other end outer tube wall of screwed union sleeve pipe (4), be provided with spiral mouth (4-4), on the inner tubal wall of screwed union sleeve pipe (4), be 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), is provided with a rectangle and pushes away handle (5-2) on cylindrical boss (5-1), described circular rubber cushion (8) is lamellar, at circular rubber cushion (8) Mian center, is provided with Y-shaped otch (8-1), 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), in the pipe of other end embedding screwed union sleeve pipe (4) one end of switch connection tube (5), contact with circular rubber cushion (8), switch connection tube (5) is interference fit with screwed union sleeve pipe (4), 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 bonding together with draw point seat (2) inserts successively Y-shaped otch (8-1), switch connection tube (5), the catheter block (6) by circular rubber cushion (8) in screwed union sleeve pipe (4) and stretches out outside conduit (7), 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 true CN104043154A (en) | 2014-09-17 |
| CN104043154B 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) |
Cited By (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 |
| CN104288852A (en) * | 2014-11-10 | 2015-01-21 | 天津哈娜好医材有限公司 | Exhaust type dialysis remaining needle with switch |
Citations (6)
| 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 |
| CN101015721A (en) * | 2006-02-12 | 2007-08-15 | 董中新 | Artery-vein catherter preventing blood outflow provided with blood sampling opening |
| JP2007301147A (en) * | 2006-05-11 | 2007-11-22 | Nipro Corp | Indwelling needle |
| CN101077433A (en) * | 2006-05-25 | 2007-11-28 | 株式会社榎本 | Lien needle capable of preventing countercurrent flow effectively |
| US20080167623A1 (en) * | 2007-01-05 | 2008-07-10 | Yosiharu Iwase | Indwelling needle |
| 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 |
-
2014
- 2014-06-30 CN CN201410304064.0A patent/CN104043154B/en active Active
Patent Citations (6)
| 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 |
| CN101015721A (en) * | 2006-02-12 | 2007-08-15 | 董中新 | Artery-vein catherter preventing blood outflow provided with blood sampling opening |
| JP2007301147A (en) * | 2006-05-11 | 2007-11-22 | Nipro Corp | Indwelling needle |
| CN101077433A (en) * | 2006-05-25 | 2007-11-28 | 株式会社榎本 | Lien needle capable of preventing countercurrent flow effectively |
| US20080167623A1 (en) * | 2007-01-05 | 2008-07-10 | Yosiharu Iwase | Indwelling needle |
| 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 |
Cited By (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 |
| CN104288852A (en) * | 2014-11-10 | 2015-01-21 | 天津哈娜好医材有限公司 | Exhaust type dialysis remaining needle with switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104043154B (en) | 2016-01-27 |
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| C14 | Grant of patent or utility model | ||
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