CN206239790U - A kind of two-way empty needle - Google Patents

A kind of two-way empty needle Download PDF

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Publication number
CN206239790U
CN206239790U CN201620964207.5U CN201620964207U CN206239790U CN 206239790 U CN206239790 U CN 206239790U CN 201620964207 U CN201620964207 U CN 201620964207U CN 206239790 U CN206239790 U CN 206239790U
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China
Prior art keywords
syringe
tube
negative
negative tube
empty needle
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Application number
CN201620964207.5U
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Chinese (zh)
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陈宇
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陈宇
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Priority to CN201620964207.5U priority Critical patent/CN206239790U/en
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Abstract

The utility model discloses a kind of two-way empty needle, including syringe;The negative tube and discharging tube for communicating are connected with syringe;The first check valve for controlling fluid to enter inside syringe along negative tube is installed on negative tube, the second check valve for controlling fluid that syringe is discharged along discharging tube is provided with discharging tube;And the pull bar of slip is sealed against inside embedded syringe.By setting two negative tubes and discharging tube communicated with syringe on syringe, and by two flow directions of unidirectional valve controls fluid so that negative tube is merely able to be passed through negative tube, the fluid in negative tube is merely able to by discharging tube discharge the utility model;The different check valve of both direction is made persistently form negative pressure in negative tube and facilitates fluid to be discharged by discharging tube.

Description

A kind of two-way empty needle
Technical field
The utility model is related to technical field of medical instruments, and in particular to a kind of two-way empty needle.
Background technology
Negative pressure wound surface treatment technology is a kind of technology suitable for Wound healing and bone regeneration, and the surface of a wound can be promoted to cure.Vacuum suction Cell membrane is acted on, is allowed to expand, distorted, cell is taken as damaging, the information of conduction impairment is turned to nucleus by signal Change, healing growth factor before causing cell to be secreted, including the vascular proliferation factor, so as to stimulate tissue to produce more new green bloods Pipe.Vacuum suction is siphoned away from the surface of a wound oozes out, and wound bed fluid balance is set up in help, there is provided an environment for moistening, removes downright bad group Knit, while reducing the bacterial number of the surface of a wound, mitigate oedema, increase surface of a wound blood flow, by increasing capillary filling.
The effect of existing negtive-pressure implement preferably, but is more expensive to manufacture, and makes the medical expense of patient higher.Such as application number 201110323169.7, a kind of entitled depression drainage device, including a silica gel air bag (1), the top of the silica gel air bag (1) combines There is an air sac sealing lid (11), there is a feed liquor communicated with the blister cavities of silica gel air bag (1) to connect on the air sac sealing lid (11) (111) a gag band (4) is arranged with and a discharge opeing interface (112), and on liquid interface (111) is entered, is had on gag band (4) There is a gag (41), gag (41) is engaged with described discharge opeing interface (12);One transition conduit (2) and a drainage (3), transition conduit (2) one end with it is described enter liquid interface (111) be connected, the other end is connected with drainage tube (3), and in transition conduit (2) arrange There is a pipe clamp (21), the shape of cross section of described drainage tube (3) is rectangular, faced in the width of the drainage tube (3) The remittance fluid apertures (32) that drainage tube chambers (31) that position corresponds to each other and with drainage tube (3) are communicated is offered on the wall body in face.
In order to solve above-mentioned deficiency of the prior art, the utility model proposes a kind of new solution.
Utility model content
The purpose of this utility model is to provide a kind of two-way empty needle.
It is, up to above-mentioned purpose, a kind of two-way empty needle, including syringe to be provided in one embodiment of the present utility model;With pin Negative tube and discharging tube that cylinder connection is communicated;Be provided with negative tube for control fluid to enter along negative tube inside syringe the One check valve, is provided with the second check valve for controlling fluid that syringe is discharged along discharging tube on discharging tube;And embedded syringe Inside seals against the pull bar of slip.
Preferably, the end of syringe is provided with the connection mouth for being connected with negative tube and discharging tube.
Preferably, negative tube and discharging tube connect the bifurcated pipe to form threeway, the company in the connecting tube and syringe of bifurcated pipe Connect mouth connection.
Preferably, detection branch pipe is connected with negative tube, vacuum table is installed on detection branch pipe.
Preferably, it is provided with for controlling pipe clamp of the detection branch pipe with negative tube connected state or control on detection branch pipe Valve.
Preferably, pull bar includes holding rod and the piston being fixed on holding rod;Piston insertion syringe inside when and pin Cylinder is slidingly sealed connection.
Preferably, syringe, negative tube and discharging tube are made up of medical grade plastic.
In sum, the utility model has advantages below:
The utility model by setting two negative tubes and discharging tube communicated with syringe on syringe, and by two lists To the flow direction of valve controls fluid so that negative tube is merely able to be passed through negative tube, and the fluid in negative tube is merely able to by discharging tube Discharge;The different check valve of both direction is made persistently form negative pressure in negative tube and facilitates fluid to be discharged by discharging tube.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Wherein, 1, syringe;2nd, negative tube;3rd, discharging tube;4th, the first check valve;5th, the second check valve;6th, pull bar;7th, connect Mouth;8th, connecting tube;9th, branch pipe is detected;10th, pipe clamp.
Specific embodiment
The utility model provide a kind of two-way empty needle, including syringe 1 and be connected with syringe 1 negative tube 2 for communicating and Discharging tube 3.The first check valve 4 for controlling fluid to enter inside syringe 1 along negative tube, discharging tube 3 are installed on negative tube 2 On be provided with for control fluid along discharging tube discharge syringe the second check valve 5;And seal against cunning inside embedded syringe Dynamic pull bar 6.
For example, two-way empty needle of the present utility model is being applied into negtive-pressure implement technical field for drawing at patient wound During liquid, negative tube 2 and wound location are formed into sealing system, then pull pull bar 6, with the inwall of syringe be close due to pull bar Envelope, and can be in its internal slide so that negative pressure is produced in negative tube, and then negative pressure occurs in wound.Using Cheng Zhong, the liquid that wound is formed will be flowed into negative tube, and the first check valve can ensure that the fluid of wound flows into syringe It is interior to flow backwards phenomenon without generation.When fluid accumulation is more, vacuum effect reduction, now pushing drawing rod is by the fluid in syringe Discharged from the second check valve and discharging tube;Then pulling pull bar again makes to form negative pressure in negative tube, and so operation is caused repeatedly Wound forms good negative pressure system.The installation direction of the first check valve of the present utility model and the second check valve is conversely, can be with Ensure that fluid can ensure sealing system when entering syringe or excluding syringe, and can be discharged by discharging tube, will not Wound is emitted into from negative tube;When negative pressure is formed, the second check valve ensures that air will not enter from discharging tube.
In optimal enforcement example of the present utility model, syringe and pull bar can select syringe commonly used in the prior art; Therefore the connection mouth 7 for being connected with negative tube and discharging tube preferably can be provided with the end of syringe, connection mouth is easy to negative pressure Pipe and discharging tube are connected with syringe.
In optimal enforcement example of the present utility model, negative tube and discharging tube connect the bifurcated pipe to form threeway, bifurcated The connecting tube 8 of pipe is connected with the connection mouth 7 on syringe.
In optimal enforcement example of the present utility model, detection branch pipe 9 is connected with negative tube, is provided with detection branch pipe Vacuum table.Detect simultaneously and be provided with branch pipe for controlling pipe clamp 10 of the detection branch pipe with negative tube connected state or control Valve.Detection branch pipe can when needed be arranged on negative tube and detect its negative pressure value, it is possible to by pipe clamp or control valve control Use state processed.
In optimal enforcement example of the present utility model, pull bar includes holding rod and the piston being fixed on holding rod; It is slidingly sealed with syringe during piston insertion syringe inside and is connected.Syringe, negative tube and discharging tube are made up of medical grade plastic.
Two-way empty needle of the present utility model may apply to multiple pharmaceutical technology fields, such as except can be as negative Outside depressor, can be also used for being used as syringe, syringe needle is installed on discharging tube and negative tube, it is possible to achieve multiple functions. For example, needing to inject multi-medicament simultaneously in the prior art often, using this two-way empty needle, can first be drawn by negative tube 2 A kind of medicine, another medicine is drawn by after the needle injection of discharging tube, reusing negative tube, so repeatedly can the company of realization It is pierced into again after continuing injection medicine without syringe needle is extracted, can so greatly reduces the pain of patient.Meanwhile, two-way empty needle Can also coordinate with the injection device being retained in human body, be taken out repeatedly without the pipeline that will be retained in human body and entered back into, pass through The valve of two-way empty needle controls to pass in and out the mode of movement of liquid or medicine.Meanwhile, using this two-way empty needle, it is possible to reduce Operating frequency, substantially reduces the working strength of operating personnel;After reducing number of operations and changing number of times, it is also possible to reduce cause of disease The chance of body-sensing dye, reduces medical-risk.

Claims (7)

1. a kind of two-way empty needle, it is characterised in that:Including
Syringe;
The negative tube and discharging tube for communicating are connected with syringe;It is provided with the negative tube for controlling fluid to enter along negative tube The first check valve inside syringe, is provided with the discharging tube for controlling fluid along the second unidirectional of discharging tube discharge syringe Valve;And the pull bar of slip is sealed against inside embedded syringe.
2. two-way empty needle as claimed in claim 1, it is characterised in that:The end of the syringe be provided with for negative tube and row The connection mouth of liquid pipe connection.
3. two-way empty needle as claimed in claim 1 or 2, it is characterised in that:The negative tube and discharging tube connect to form threeway Bifurcated pipe, the connection mouth connection on the connecting tube of the bifurcated pipe and syringe.
4. two-way empty needle as claimed in claim 1 or 2, it is characterised in that:Detection branch pipe is connected with the negative tube, it is described Vacuum table is installed on detection branch pipe.
5. two-way empty needle as claimed in claim 4, it is characterised in that:It is provided with the detection branch pipe for controlling detection branch The pipe clamp or control valve of pipe and negative tube connected state.
6. two-way empty needle as claimed in claim 1, it is characterised in that:The pull bar includes holding rod and is fixed on holding rod On piston;It is slidingly sealed with syringe during the piston insertion syringe inside and is connected.
7. two-way empty needle as claimed in claim 1, it is characterised in that:The syringe, negative tube and discharging tube are moulded by medical grade Material is made.
CN201620964207.5U 2016-08-29 2016-08-29 A kind of two-way empty needle Active CN206239790U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620964207.5U CN206239790U (en) 2016-08-29 2016-08-29 A kind of two-way empty needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620964207.5U CN206239790U (en) 2016-08-29 2016-08-29 A kind of two-way empty needle

Publications (1)

Publication Number Publication Date
CN206239790U true CN206239790U (en) 2017-06-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620964207.5U Active CN206239790U (en) 2016-08-29 2016-08-29 A kind of two-way empty needle

Country Status (1)

Country Link
CN (1) CN206239790U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106215256A (en) * 2016-08-29 2016-12-14 陈宇 A kind of two-way empty needle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106215256A (en) * 2016-08-29 2016-12-14 陈宇 A kind of two-way empty needle

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