CN206964845U - A kind of haemodialysis puncture needle - Google Patents

A kind of haemodialysis puncture needle Download PDF

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Publication number
CN206964845U
CN206964845U CN201720112729.7U CN201720112729U CN206964845U CN 206964845 U CN206964845 U CN 206964845U CN 201720112729 U CN201720112729 U CN 201720112729U CN 206964845 U CN206964845 U CN 206964845U
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CN
China
Prior art keywords
puncture needle
needle
tube
haemodialysis
draw point
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Expired - Fee Related
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CN201720112729.7U
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Chinese (zh)
Inventor
辛克明
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Individual
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Individual
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Priority to CN201720112729.7U priority Critical patent/CN206964845U/en
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Publication of CN206964845U publication Critical patent/CN206964845U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to haemodialysis technical field of medical instruments, and in particular to a kind of haemodialysis puncture needle.Inner tube leading section inwall is provided with the neck of an arc, is connected with the needle stand of draw point;The needle stand of draw point is the inflatable structure being connected with neck interference, and gas tube one end penetrates with needle stand, and aerating pipe port of the one end along inner tube tail end extends to outside;Outer tube leading section is fixedly connected with the rearward end of inner tube;The middle part of outer tube is provided with flow-stopping clip, and afterbody is provided with dialysis tube connection ports, and movable sealing is connected with plug at connector;The haemodialysis puncture needle also includes fixing apparatus for puncture needle.The utility model is by way of setting inner and outer tubes to be used in conjunction, realize that draw point head is mobile and fixed by inflating needle stand, blocking effect is played with flow-stopping clip, both remaining needle can be also served as draw point to use, there is fixing device simultaneously, spike pierces blood vessel in being dialysed after puncturing can be avoided, it is applied widely, it is easy to use.

Description

A kind of haemodialysis puncture needle
Technical field
The utility model belongs to haemodialysis technical field of medical instruments, and in particular to a kind of haemodialysis puncture needle.
Background technology
Haemodialysis (hemodialysis, HD) is one of acute or chronic renal failure kidneys of patients Replacement Therapy. It by internal blood drainage by external, through one by the dialyzer that is formed without several hollow fibres, blood and containing body The similar electrolyte solution of concentration (dialyzate) inside and outside hollow fibre, is carrying out mass exchange, clearly by disperse/convection current one by one Except internal metabolic waste, maintain electrolyte and acid-base balance;Moisture excessive in vivo, and the blood that purification will be passed through are removed simultaneously The whole process that liquid is fed back is referred to as haemodialysis.
When carrying out haemodialysis puncture at present, typically draw point or remaining needle are used.Using needing to fix limb after puncture of steel needles Body, not allowing to puncture limbs has any activity, otherwise easily punctures blood vessel, especially for unconsciousness or polo-neck patient, Once puncturing blood vessel may result in subcutaneous hematoma at puncture, injured blood vessel, difficulty when increasing patient suffering and puncturing next time. And using, it is necessary to after piercing be attached its tail end with haemodialysis control unit, due to shortage, blocking fills accordingly during remaining needle Put, mostly replaced using haemostatic clamp, easily generation blocks improper, causes blood samples of patients to be lost in, and increases conflict between doctors and patients.
Utility model content
The technical problem that the utility model solves is when carrying out haemodialysis puncture at present, typically to use draw point or indwelling Pin.Using fixed limb is needed after puncture of steel needles, do not allow puncture limbs to have any activity, otherwise easily puncture blood vessel, especially It is for unconsciousness or polo-neck patient, once puncturing blood vessel may result in subcutaneous hematoma at puncture, injured blood vessel, increase is suffered from Difficulty when person's pain and next time puncture.And using during remaining needle, it is necessary to which its tail end is entered with haemodialysis control unit after piercing Row connection, due to lacking corresponding occluding device, mostly replaced using haemostatic clamp, easily generation blocks improper, causes patient Loss of blood, increase conflict between doctors and patients.
In order to solve the above problems, the utility model provides a kind of haemodialysis puncture needle, by setting inner and outer tubes The mode being used in conjunction, realize that draw point head is mobile and fixed by inflating needle stand, there is flow-stopping clip to play blocking effect, being capable of both conducts Draw point also serves as remaining needle use, while has fixing device, can avoid spike pierces blood vessel in being dialysed after puncturing, be applicable Scope is wide, easy to use.
To achieve the above object, the utility model adopts the following technical scheme that, a kind of haemodialysis puncture needle, including interior Pipe and outer tube;Inner tube leading section inwall is provided with the neck of an arc, and the spherical needle stand with draw point is connected, when being punctured, In neck, draw point protrusion is punctured pin base fastener, after puncture terminates, needle stand activity is hauled out into neck, draw point enters interior therewith Hide, avoided because movement punctures blood vessel in pipe;The front end of neck is opening, is socketed with draw point;The needle stand of draw point be and neck mistake It is full of the inflatable structure of connection, gas tube one end penetrates with needle stand, and aerating pipe port of the one end along inner tube tail end extends to outside, inflates The mouth of pipe is connected with gas tube movable sealing, and sealing ring is provided with such as, but not limited at aerating pipe port, real by the inflation to needle stand Existing pin base fastener, to be punctured, passes through the deflation to needle stand so that needle stand can move out out of neck, drag simultaneously in neck Draw gas tube to realize the movement of needle stand and draw point, and the sealing structure of aerating pipe port, ensure be not in during movement The situation that blood oozes out;The plug that pipe end is provided with movable sealing connection is inflated, without blocking plug during inflation/deflation, is kept The inflated for deflated state of needle stand;Inner tube is flexible pipe, and leading section is circular arc hatch frame, avoids stabbing blood vessel;Outer tube front end Portion is fixedly connected with the rearward end of inner tube;The middle part of outer tube is provided with flow-stopping clip, makees for playing to block when being connected with puncture tube With afterbody is provided with dialysis tube connection ports, and movable sealing is connected with plug at connector, makees remaining needle in use, can block up plug On, avoid infection;The haemodialysis puncture needle also includes fixing apparatus for puncture needle, and the fixing apparatus for puncture needle includes fixing Set and guide pipe, fixed cover are the elastic regulation band that end is respectively equipped with button and buttonhole, and the big tune of size is carried out by button, Elastic regulation band is finely adjusted, to realize fixed and comfortable effect;The center of fixed cover is provided with puncturing hole, is provided with puncturing hole The internal thread circle of angle 30-45 degree, for oblique fixed guide pipe, 30-45 degree is adapted to the angle of actual puncture needle, can fix It is firm, blood vessel will not be stabbed again;It is connected with the external screw thread of guide pipe, guide pipe is rigid structure, can be to a certain degree The upper angle for keeping puncture needle, avoid because patient is mobile and caused by puncture needle displacement and puncture blood vessel;Puncturing hole and guide pipe with The haemodialysis puncture needle gap socket, is first punctured, and fixed cover and guide pipe then are moved into specified location is carried out It is fixed.
Further, the other end of the guide pipe is provided with the turn of 1-2cm length, avoids outer tube from turning up blocking, also rises To the effect of flexible guiding.
Further, inner and outer tubes are made of clear material, and are easy to control puncture process, observation punctures effect.
Further, the internal layer of fixed cover is provided with moisture absorption pad, is filled with dressing of sucking blood in moisture absorption pad, is sent out if any oozing of blood situation Life can carry out a certain degree of absorption, avoid infection.
Specific operation process is as follows:
First, it is puncture needle is vertical, utilize gravity so that draw point head exposes, and then needle stand is filled by gas tube Gas so that draw point position is fixed, and then the plug of gas tube blocks, and is punctured;Flow-stopping clip is clamped after puncture, passes through gas tube Needle stand is deflated, then drops gas tube, draw point head is transferred into internal tube is hidden, then the plug of gas tube is blocked up On, then the fixed cover of fixing device is enclosed on puncture needle, adjust button and elastic band is fixed, guide pipe is then enclosed on outer tube Outside, after end is threadedly coupled with puncturing hole, the outer tube connection dialysis tubing of puncture needle is dialysed.
The utility model has the advantage of:
1. it can not only be used as draw point but also can be used as remaining needle, as remaining needle in use, only taking dialysis tubing Under, close plug and clamp flow-stopping clip.
It 2. draw point head may move, can be hidden in after puncture in inner tube, avoid puncturing blood vessel.
3. have fixing device, can prevent in dialysis procedure because patient is mobile and caused by puncture needle it is mobile and puncture The situation of blood vessel occurs.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art.
Fig. 1 is puncture needle structure schematic diagram of the present utility model;
Fig. 2 is fixture structure schematic diagram of the present utility model;
In figure, inner tube 1, neck 11, opening 12, outer tube 2, tube connection ports 21 of dialysing, draw point 3, needle stand 4, gas tube 41, Flow-stopping clip 5, fixed cover 6, guide pipe 7.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to The scope of the utility model protection.
Embodiment 1:
A kind of haemodialysis puncture needle, including inner tube 1 and outer tube 2;The leading section inwall of inner tube 1 is provided with the neck of an arc 11, the spherical needle stand 4 with draw point 3 is connected, and when being punctured, needle stand 4 is stuck in neck, and the protrusion of draw point 3 is punctured, and is punctured After end, neck is hauled out into the activity of needle stand 4, draw point 3 enters in inner tube therewith to be hidden, and is avoided because movement punctures blood vessel;Neck 11 Front end be opening 12, be socketed with draw point 3;The needle stand 4 of draw point 3 is the inflatable structure that is connected with the interference of neck 11, gas tube 41 One end penetrates with needle stand 4, and aerating pipe port of the one end along inner tube tail end extends to outside, aerating pipe port and the movable sealing of gas tube 41 Connection, sealing ring is provided with such as, but not limited at aerating pipe port, by the inflation to needle stand 4 realize needle stand 4 be stuck in neck with Punctured, pass through the deflation to needle stand 4 so that needle stand 4 can move out out of neck, while dilatory gas tube realizes needle stand 4 and the movement of draw point 3, and the sealing structure of aerating pipe port, ensure to be not in situation that blood oozes out during movement; The end of gas tube 41 be provided with movable sealing connection plug, without plug is blocked during inflation/deflation, keep needle stand inflation or Deflation status;Inner tube 1 is flexible pipe, and leading section is circular arc hatch frame, avoids stabbing blood vessel;The leading section of outer tube 2 and inner tube 1 Rearward end is fixedly connected;The middle part of outer tube 2 is provided with flow-stopping clip 5, and for playing blocking effect when being connected with puncture tube, afterbody is set There are dialysis tube connection ports 21, movable sealing is connected with plug at connector, makees remaining needle in use, can block plug, avoids Infection;The haemodialysis puncture needle also includes fixing apparatus for puncture needle, and the fixing apparatus for puncture needle includes fixed cover 6 and led To pipe 7, fixed cover 6 is the elastic regulation band that end is respectively equipped with button and buttonhole, and the big tune of size is carried out by button, elastic Regulation band is finely adjusted, to realize fixed and comfortable effect;The center of fixed cover 6 is provided with puncturing hole, and angle is provided with puncturing hole The internal thread circle of 30-45 degree is spent, for oblique fixed guide pipe, 30-45 degree is adapted to the angle of actual puncture needle, can fix Firmly, blood vessel will not be stabbed again;It is connected with the external screw thread of guide pipe 7, guide pipe is rigid structure, can be to a certain degree The upper angle for keeping puncture needle, avoid because patient is mobile and caused by puncture needle displacement and puncture blood vessel;Puncturing hole and guide pipe 7 with The haemodialysis puncture needle gap socket, is first punctured, and fixed cover and guide pipe then are moved into specified location is carried out It is fixed.
The other end of the guide pipe 7 is provided with the turn of 1-2cm length, avoids outer tube from turning up blocking, also functions to flexibility and lead To effect.
Inner tube 1 and outer tube 2 are made of clear material, and are easy to control puncture process, observation punctures effect.
Embodiment 2:
The internal layer of fixed cover 6 is provided with moisture absorption pad, is filled with dressing of sucking blood in moisture absorption pad, occurs to enter if any oozing of blood situation The a certain degree of absorption of row, avoids infection.
Specific operation process is as follows:
First, it is puncture needle is vertical, utilize gravity so that draw point head exposes, and then needle stand is filled by gas tube Gas so that draw point position is fixed, and then the plug of gas tube blocks, and is punctured;Needle stand is carried out by gas tube after puncture Deflate, then drop gas tube, draw point head is transferred into internal tube is hidden, then the plug of gas tube is blocked;Again fixation The fixed cover of device is enclosed on puncture needle, adjusts button and elastic band is fixed, then guide pipe is enclosed on outside outer tube, end is with wearing After acanthopore is threadedly coupled, the outer tube connection dialysis tubing of puncture needle is dialysed.

Claims (4)

  1. A kind of 1. haemodialysis puncture needle, it is characterised in that:Including inner and outer tubes;Inner tube leading section inwall is provided with an arc Neck, be connected with the needle stand of draw point, the front end of neck is opening, with draw point be socketed;The needle stand of draw point is to connect with neck interference The inflatable structure connect, gas tube one end penetrate with needle stand, and aerating pipe port of the one end along inner tube tail end extends to outside, aerating pipe port It is connected with gas tube movable sealing, inflation pipe end is provided with the plug of movable sealing connection;Inner tube is flexible pipe, and leading section is circular arc Shape hatch frame;Outer tube leading section is fixedly connected with the rearward end of inner tube;The middle part of outer tube is provided with flow-stopping clip, and afterbody is provided with dialysis Tube connection ports, movable sealing is connected with plug at connector;The haemodialysis puncture needle also includes fixing apparatus for puncture needle, institute Stating fixing apparatus for puncture needle includes fixed cover and guide pipe, and fixed cover is the elastic regulation that end is respectively equipped with button and buttonhole Band, the center of fixed cover are provided with puncturing hole, the internal thread circle of angle 30-45 degree, the external screw thread with guide pipe are provided with puncturing hole It is connected;Puncturing hole and guide pipe are socketed with the haemodialysis puncture needle gap.
  2. 2. haemodialysis puncture needle as claimed in claim 1, it is characterised in that:The other end of the guide pipe is provided with 1-2cm Long turn.
  3. 3. haemodialysis puncture needle as claimed in claim 1, it is characterised in that:Inner and outer tubes are made of clear material.
  4. 4. haemodialysis puncture needle as claimed in claim 1, it is characterised in that:The internal layer of fixed cover is provided with moisture absorption pad, moisture absorption Filled with dressing of sucking blood in pad.
CN201720112729.7U 2017-02-07 2017-02-07 A kind of haemodialysis puncture needle Expired - Fee Related CN206964845U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720112729.7U CN206964845U (en) 2017-02-07 2017-02-07 A kind of haemodialysis puncture needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720112729.7U CN206964845U (en) 2017-02-07 2017-02-07 A kind of haemodialysis puncture needle

Publications (1)

Publication Number Publication Date
CN206964845U true CN206964845U (en) 2018-02-06

Family

ID=61413882

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720112729.7U Expired - Fee Related CN206964845U (en) 2017-02-07 2017-02-07 A kind of haemodialysis puncture needle

Country Status (1)

Country Link
CN (1) CN206964845U (en)

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180206

Termination date: 20210207