CN106334236A - Indwelling needle used in blood sampling - Google Patents
Indwelling needle used in blood sampling Download PDFInfo
- Publication number
- CN106334236A CN106334236A CN201610856972.XA CN201610856972A CN106334236A CN 106334236 A CN106334236 A CN 106334236A CN 201610856972 A CN201610856972 A CN 201610856972A CN 106334236 A CN106334236 A CN 106334236A
- Authority
- CN
- China
- Prior art keywords
- blood sampling
- way pipe
- handle
- joint
- pipe
- 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.)
- Pending
Links
Classifications
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
Abstract
The invention provides an indwelling needled used in blooding sampling, including a steel needle and a cannula, wherein the steel needle is fixed on the top end of the cannula, the side wall of the cannula is connected with a t-branch pipe, a change-over valve is connected with the inner wall of the t-branch pipe in a rotating manner; by rotating the change-over valve, the cannula can be connected with different pipes of the t-branch pipe. By substituting the existing branch tube structure with the t-branch pipe, a blood sampling joint and a drip joint are formed on the side wall of the cannula. When the change-over valve is connected with the blood sampling joint and the cannula, the drip joint is closed, the blood sampling joint is connected with a blood sampling device, and blood enters the blood sampling device through the cannula and the blood sampling joint for realizing blood sampling. When the change-over valve is connected with the drip joint and the cannula, the blood sampling joint is closed, the drip joint and the drip device are connected for realizing medicine injection.
Description
Technical field
The present invention relates to technical field of medical instruments, especially a kind of blood sampling remaining needle.
Background technology
Remaining needle has become a kind of medicine equipment relatively often using in hospital care work.For some patients, need
Continue be injected intravenously liquid, for avoiding excessive damage vein blood vessel, generally adopt venous detaining needle, can be without repeated puncture
Vein blood vessel.But there is following defect in existing remaining needle: be typically only capable to unidirectional injection, and can not take a blood sample, need blood sampling
When need for again in venipuncture.In order to solve above-mentioned technical problem, one of ordinary skill in the art are in indwelling Aculeata
Fluid sealant on connect bloodletting needle.Bloodletting needle is connected with leading blood pin by flexible pipe, realizes directly being drawn blood by remaining needle.But
It is in technique scheme, after blood sampling, the fluid sealant of indwelling Aculeata can leave pin hole, lead to some molecules to enter
In transfusion system.
Content of the invention
It is an object of the invention to provide a kind of blood sampling remaining needle, switching valve is set in the inside of three-way pipe, is switched on or off
Sleeve pipe and the stream not people having a common goal of three-way pipe, make remaining needle realize the function with injection of taking a blood sample simultaneously.
In order to achieve the above object, the following technical scheme of present invention offer:
Blood sampling remaining needle, including draw point and sleeve pipe, the top of described sleeve pipe is fixed draw point, the side wall of described sleeve pipe is connected
Three-way pipe, described switching valve is rotated with the inwall of described three-way pipe and is connected, and rotates described switching valve, makes described sleeve pipe and described three
The different pipelines of siphunculus communicate.Existing manifold configuration be instead of using three-way pipe, make sleeve side walls form blood sampling joint and point
Drip joint.When switching valve connects blood sampling joint with sleeve pipe, drop joint-closure, blood sampling joint connects blood-taking device, and blood leads to
Cross sleeve pipe, blood sampling joint enters blood-taking device, realizes blood sampling.When switching valve connects drop joint with sleeve pipe, blood sampling joint closes
Close, drop joint is connected with transfusion apparatus, realizes injection.
In a preferred embodiment, described switching valve includes spherical main, and described spherical main opens up through hole,
Support shaft is set on the surface of spherical main, described support shaft extends along the vertical direction in described through hole direction, described support shaft
Rotate with the inwall of described three-way pipe and be connected.
In a preferred embodiment, the inside of described three-way pipe opens up support slot, the inwall shape of described support slot
Shape is corresponding to described spherical main shape.
In a preferred embodiment, described support shaft passes to described three-way pipe from the side wall of described support slot
Portion, described support the tip of the axis fixed handle, the length direction of described handle is vertical with the length direction of described support shaft, and institute
The length direction stating handle is parallel with described through hole direction.
In a preferred embodiment, retainer, the number of described retainer are arranged on the outer wall of described support slot
Measure as two, described handle can rotate between two retainers, make the different pipes of described through hole connection and described three-way pipe
Road.
In a preferred embodiment, also include extrusion spring, described extrusion spring is nested with outside three-way pipe
Outside the support shaft in portion, and one end of described extrusion spring is connected with described handle, and the other end is connected with the outer wall of described three-way pipe,
Closely it is connected with described support slot inwall by the outer wall that described extrusion spring makes described spherical main.
The invention has the benefit that
Existing manifold configuration be instead of using three-way pipe, make sleeve side walls form blood sampling joint and drop joint.When turn
When changing valve connection blood sampling joint with sleeve pipe, drop joint-closure, blood sampling joint connects blood-taking device, and blood is by sleeve pipe, blood sampling
Joint enters blood-taking device, realizes blood sampling.When switching valve connects drop joint with sleeve pipe, joint-closure of taking a blood sample, drop joint
It is connected with transfusion apparatus, realize injection.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sectional view of three-way pipe；
Fig. 3 is the sectional view in the a-a direction of Fig. 2；
Fig. 4 is the connection diagram of three-way pipe and switching valve.
Specific embodiment
Below in conjunction with the accompanying drawing of the present invention, technical scheme is clearly and completely described it is clear that institute
The embodiment of description is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, broadly falls into this
The scope of bright protection.
In conjunction with shown in Fig. 1-2, the blood sampling remaining needle that the present invention provides, including draw point 1 and sleeve pipe 2.Draw point 1 is fixed on sleeve pipe
2 top, in the bottom of sleeve pipe 2 built-in isolating seal plug 30.Needle handle 31 is held in the side fixation of sleeve pipe 2.The side wall of sleeve pipe 2 opens up
Through hole 20, the main line 401 of through hole 20 connecting tee pipe 4, sleeve pipe 2 is formed in one with three-way pipe 4.Other the two of three-way pipe 4
Individual pipeline is respectively blood sampling pipe 402 and drop pipeline 403.Three-way pipe 4 is made up of transparent medical grade plastic.The inside of three-way pipe 4
Pour into spherical support groove 41.Support slot 41 be located at crotch place open up through hole 42, that is, through hole 42 be located at main line 401,
Blood sampling pipe 402 and the intersection of drop pipeline 403.Switching valve 5 is placed in support slot 41.Switching valve 5 includes spherical main 51
With support shaft 52.Spherical main 51 opens up through hole 53 along its axis direction.Support shaft 52 is fixed on the surface of spherical main 51, and
Support shaft 52 extends along the vertical direction in through hole 53 direction.Support shaft 52 inserts through hole 42, makes switching valve 5 be fixed on support slot 41
Interior.By rotation support shaft 41, make spherical main 51 in support slot 41 inner rotation, so that through hole 53 is connected sleeve pipe 2 and adopted
Blood vessel road 402, or connect sleeve pipe 2 and drop pipeline 403.As the mode of operation of existing remaining needle, draw point 1 is penetrated quiet
Arteries and veins, the present embodiment is fixed on vein.When being taken a blood sample, blood sampling pipe 402 is connected with blood-taking device.Connected mode can
Multiple to have, such as, it is threaded in the outside of blood sampling pipe 402, blood sampling cylinder is threadeded with blood sampling pipe 402；Or adopting
The outside setting snap ring on blood vessel road 403, blood sampling cylinder is connected with blood sampling pipe 402 clamping.Rotation support shaft 52, makes through hole 53 connect
Sleeve pipe 2 and blood sampling pipe 402, blood sampling cylinder can be taken a blood sample by operation.When carrying out infusion, by drop pipeline 403
It is connected with transfusion apparatus.Rotation support shaft 52, makes through hole 53 connect sleeve pipe 2 and drop pipeline 403, the medicine in transfusion apparatus leads to
Cross flexible pipe and enter stilligout road 403, sleeve pipe 2, draw point 1, be injected into intravenous.
Operate for convenience, in one embodiment, such as Fig. 3-4, the end fixed handle 54 of support shaft 51.Handle 54
Outside positioned at three-way pipe 4.The length direction of handle 54 is vertical with the length direction of support shaft 51, and puts down with the direction of through hole 53
OK.Rotate switching valve 5 by handle 54 is convenient, and the length direction of handle 54 is parallel with the direction of through hole 53, can be intuitively
Connection direction from the walking direction switching valve 5 of handle 54.Two retainers 44,45 are arranged on the outer wall of support slot 41.Only
Dynamic portion 44 is located on blood sampling pipe 402 direction, and retainer 45 is located on drop pipeline 403 direction.The side wall of retainer 44 opens up
Draw-in groove 440.Draw-in groove 450 is equally opened up on the side wall of retainer 45.Handle 54 is located between retainer 44,45, and can be only
Rotate between dynamic portion 44,45.In this way, limit the rotation direction of handle 54, thus defining the connection direction of through hole 53.
The opening of the opening of draw-in groove 440 and draw-in groove 450 is both facing to handle 54.When handle 54 turns to retainer 44, handle 54 blocks
It is connected in draw-in groove 440, make through hole 53 connect sleeve pipe 2 and blood sampling pipe 402.In handle 54 clamping draw-in groove 440, handle 54 can be made
Position fix, it is to avoid in blood collection procedure produce rotate, impact blood sampling.When handle 54 turns to retainer 45, handle 54
It is connected in draw-in groove 450, make through hole 53 connect sleeve pipe 2 and drop pipeline 403.In handle 54 clamping draw-in groove 450, handle can be made
54 position is fixed, it is to avoid produces during drop and rotates.In order that being completely embedded between switching valve 5 and support groove 41 inwall,
In one embodiment, also include extrusion spring 6.The part that support shaft 51 is located at outside three-way pipe 4 is nested with extrusion spring 6.
One end of extrusion spring 6 is connected with handle 54, and the other end is connected with the outer wall of through hole 42.Extrusion spring 6 extrudes support slot 41
Inwall and the outer wall of spherical main 51, make both closely connect.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be defined by scope of the claims.
Claims (6)
1. blood sampling remaining needle, including draw point and sleeve pipe, draw point is fixed on the top of described sleeve pipe, and the side wall of described sleeve pipe connects three
Siphunculus it is characterised in that: the inwall of described switching valve and described three-way pipe rotates and is connected, the described switching valve of rotation, makes described set
Pipe is communicated from the different pipelines of described three-way pipe.
2. according to claim 1 blood sampling remaining needle it is characterised in that: described switching valve includes spherical main, described ball
Open up through hole in shape main body, support shaft is set on the surface of spherical main, described support shaft is along the vertical side in described through hole direction
To extension, described support shaft is rotated with the inwall of described three-way pipe and is connected.
3. according to claim 2 blood sampling remaining needle it is characterised in that: the inside of described three-way pipe opens up support slot, institute
The inner wall shape stating support slot is corresponding to described spherical main shape.
4. the blood sampling remaining needle according to Claims 2 or 3 it is characterised in that: described support shaft is from the side of described support slot
Wall passes to described three-way pipe, described support the tip of the axis fixed handle, the length direction of described handle and described support
The length direction of axle is vertical, and the length direction of described handle is parallel with described through hole direction.
5. according to claim 4 blood sampling remaining needle it is characterised in that: on the outer wall of described support slot arrange stop
Portion, the quantity of described retainer is two, and described handle can rotate between two retainers, makes described through hole connection and institute
State the different pipelines of three-way pipe.
6. according to claim 5 blood sampling remaining needle it is characterised in that: also include extrusion spring, described extrusion spring set
Put outside the support shaft outside positioned at three-way pipe, and one end of described extrusion spring be connected with described handle, the other end with described
The outer wall of three-way pipe connects, and so that the outer wall of described spherical main and described support slot inwall is closely connected by described extrusion spring
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610856972.XA CN106334236A (en) | 2016-09-28 | 2016-09-28 | Indwelling needle used in blood sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610856972.XA CN106334236A (en) | 2016-09-28 | 2016-09-28 | Indwelling needle used in blood sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106334236A true CN106334236A (en) | 2017-01-18 |
Family
ID=57840508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610856972.XA Pending CN106334236A (en) | 2016-09-28 | 2016-09-28 | Indwelling needle used in blood sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106334236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109875574A (en) * | 2019-04-24 | 2019-06-14 | 徐锐 | A kind of medical inspection section blood sampler |
| CN110141255A (en) * | 2019-06-19 | 2019-08-20 | 北京光耀世纪医疗科技有限公司 | Hemostix |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2770674Y (en) * | 2004-12-29 | 2006-04-12 | 赵苏萍 | Retaining needle with multiway channel |
| CN2798964Y (en) * | 2005-04-29 | 2006-07-26 | 张春霞 | Vein retention needle |
| CN201375750Y (en) * | 2009-03-18 | 2010-01-06 | 王艳 | Hermetic vein three-way indwelling needle |
| CN203576486U (en) * | 2013-10-15 | 2014-05-07 | 谢艳梅 | Single-wing arterial indwelling needle |
| CN203598306U (en) * | 2013-06-05 | 2014-05-21 | 窦玉洁 | Disposable vein blood sampling and transfusion dual-purpose needle |
| CN104324445A (en) * | 2014-10-30 | 2015-02-04 | 四川省广元市康康医疗器械有限公司 | Medium-pressure medical three-way valve and medium-pressure sealing process of medium-pressure medical three-way valve |
| CN204181960U (en) * | 2014-10-24 | 2015-03-04 | 北京天地和协科技有限公司 | A kind of remaining needle |
| DE102014000831A1 (en) * | 2014-01-23 | 2015-07-23 | Olympus Winter & Ibe Gmbh | Chick of a stopcock of a surgical instrument |
| WO2015133502A1 (en) * | 2014-03-04 | 2015-09-11 | 株式会社ジェイ・エム・エス | Three-way stopcock |
-
2016
- 2016-09-28 CN CN201610856972.XA patent/CN106334236A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2770674Y (en) * | 2004-12-29 | 2006-04-12 | 赵苏萍 | Retaining needle with multiway channel |
| CN2798964Y (en) * | 2005-04-29 | 2006-07-26 | 张春霞 | Vein retention needle |
| CN201375750Y (en) * | 2009-03-18 | 2010-01-06 | 王艳 | Hermetic vein three-way indwelling needle |
| CN203598306U (en) * | 2013-06-05 | 2014-05-21 | 窦玉洁 | Disposable vein blood sampling and transfusion dual-purpose needle |
| CN203576486U (en) * | 2013-10-15 | 2014-05-07 | 谢艳梅 | Single-wing arterial indwelling needle |
| DE102014000831A1 (en) * | 2014-01-23 | 2015-07-23 | Olympus Winter & Ibe Gmbh | Chick of a stopcock of a surgical instrument |
| WO2015133502A1 (en) * | 2014-03-04 | 2015-09-11 | 株式会社ジェイ・エム・エス | Three-way stopcock |
| CN204181960U (en) * | 2014-10-24 | 2015-03-04 | 北京天地和协科技有限公司 | A kind of remaining needle |
| CN104324445A (en) * | 2014-10-30 | 2015-02-04 | 四川省广元市康康医疗器械有限公司 | Medium-pressure medical three-way valve and medium-pressure sealing process of medium-pressure medical three-way valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109875574A (en) * | 2019-04-24 | 2019-06-14 | 徐锐 | A kind of medical inspection section blood sampler |
| CN110141255A (en) * | 2019-06-19 | 2019-08-20 | 北京光耀世纪医疗科技有限公司 | Hemostix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170118 |
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| RJ01 | Rejection of invention patent application after publication |