CN202490272U - Double-needle-head syringe - Google Patents

Double-needle-head syringe Download PDF

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Publication number
CN202490272U
CN202490272U CN2012201256350U CN201220125635U CN202490272U CN 202490272 U CN202490272 U CN 202490272U CN 2012201256350 U CN2012201256350 U CN 2012201256350U CN 201220125635 U CN201220125635 U CN 201220125635U CN 202490272 U CN202490272 U CN 202490272U
Authority
CN
China
Prior art keywords
check valve
syringe
syringe needle
needle
cylindrical shell
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.)
Expired - Lifetime
Application number
CN2012201256350U
Other languages
Chinese (zh)
Inventor
邓茂林
谭鸿波
何颖
尹立华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Kelun Pharmaceutical Co Ltd
Original Assignee
Sichuan Kelun Pharmaceutical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Kelun Pharmaceutical Co Ltd filed Critical Sichuan Kelun Pharmaceutical Co Ltd
Priority to CN2012201256350U priority Critical patent/CN202490272U/en
Application granted granted Critical
Publication of CN202490272U publication Critical patent/CN202490272U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a double-needle-head syringe. The double-needle-head syringe comprises a barrel body (1), a piston (2) positioned inside the barrel body (1), and a push rod (3) connected with the piston (2), wherein the bottom of the barrel body (1) is provided with a one-way valve A (4) and a one-way valve B (5), the one-way valve A (4) and the one-way valve B (5) are arranged in a V-shape, an input end of the one-way valve A (4) is placed outside the barrel body (1), an input end of the one-way valve B (5) is placed inside the barrel body (1), a syringe needle A (7) and a syringe needle B (8) are respectively installed on the one-way valve A (4) and the one-way valve B (5) through threaded connection, and the bore diameter and the external diameter of the syringe needle A (7) are larger than those of the syringe needle B (8). The double-needle-head syringe has the advantages that when the syringe needle A is used to absorb medicine solutions, blocking is not prone to occurrence, and when the syringe needle B is used to syringe, pain of patients is not increased.

Description

The double needle syringe
Technical field
This utility model relates to a kind of medical apparatus and instruments, is specifically related to a kind of double needle syringe.
Background technology
Traditional hypodermic syringe that is used for has only a syringe needle, and from the consideration that alleviates the patient suffering, the diameter of syringe needle is less usually, and its aperture is also less accordingly.When adopting powdery medicine to inject, need in syringe, suck water for injection, insert syringe in the container of powdery medicine then, water for injection is pushed in the container with the dilution medicine, obtain drug solution.Often mixing in the drug solution that obtains by this method has undissolved drug particles, because the aperture of syringe needle is less, with the drug solution inhalation syringe time, undissolved drug particles can stop up syringe needle.
The utility model content
The purpose of this utility model promptly is to overcome the deficiency of prior art, and a kind of not susceptible to plugging double needle syringe is provided.
The purpose of this utility model realizes through following technical scheme:
The double needle syringe, it comprises cylindrical shell, is positioned at tube intravital piston and the push rod that is connected with piston, and the bottom of cylindrical shell is provided with check valve A and check valve B; Check valve A and check valve B are V-shape and arrange; The input of check valve A is positioned at outside the cylindrical shell, and the outfan of check valve A is positioned at cylindrical shell, and the input of check valve B is positioned at cylindrical shell; The outfan of check valve B is positioned at outside the cylindrical shell, and the outfan of the input of check valve A and check valve B is provided with tapped swivel nut;
It also comprises syringe needle A and syringe needle B, and the end of syringe needle A and syringe needle B is provided with installation tube, and installation tube is provided with external screw thread, and syringe needle A is connected with swivel nut on the check valve A through installation tube, and syringe needle B passes through installation tube and is connected with swivel nut on the check valve B.
The aperture of syringe needle A is greater than the aperture of syringe needle B.
The input of check valve B is provided with filter screen.
The advantage of this utility model is:
1. draw drug solution with syringe needle A, with syringe needle B injection, the aperture of syringe needle A is bigger, is difficult for stopping up, and the external diameter of syringe needle B is less, can not increase patient's misery;
2. be provided with two check valves that flow direction is opposite, when drawing or inject, having only in the syringe needle has liquid to pass through;
3. the V-shaped arrangement of check valve has increased the spacing between two syringe needles, handled easily.
Description of drawings
Fig. 1 is the structural representation of this utility model
Among the figure, 1-cylindrical shell, 2-piston, 3-push rod, 4-check valve A, 5-check valve B, 6-swivel nut, 7-syringe needle A, 8-syringe needle B, 9-installation tube.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described further, the protection domain of this utility model is not limited to the following stated.
As shown in Figure 1; The double needle syringe, it comprises cylindrical shell 1, is positioned at the piston 2 and the push rod 3 that is connected with piston 2 of cylindrical shell 1, and the bottom of cylindrical shell 1 is provided with check valve A4 and check valve B5; Check valve A4 and check valve B5 are V-shape and arrange; The input of check valve A4 is positioned at outside the cylindrical shell 1, and the outfan of check valve A4 is positioned at cylindrical shell, and the input of check valve B5 is positioned at cylindrical shell 1; The outfan of check valve B5 is positioned at outside the cylindrical shell, and the outfan of the input of check valve A4 and check valve B5 is provided with tapped swivel nut 6; It also comprises syringe needle A7 and syringe needle B8; The end of syringe needle A7 and syringe needle B8 is provided with installation tube 9; Installation tube 9 is provided with external screw thread, and syringe needle A7 is connected with swivel nut 6 on the check valve A4 through installation tube 9, and syringe needle B8 passes through installation tube 9 and is connected with swivel nut 6 on the check valve B5.The aperture of syringe needle A7 and external diameter are greater than aperture and the external diameter of syringe needle B8.The input of check valve B5 is provided with filter screen.

Claims (3)

1. double needle syringe; It comprises cylindrical shell (1), is positioned at the piston (2) and the push rod (3) that is connected with piston (2) of cylindrical shell (1); It is characterized in that: the bottom of cylindrical shell (1) is provided with check valve A (4) and check valve B (5), and check valve A (4) and check valve B (5) are V-shape and arrange, and the input of check valve A (4) is positioned at outside the cylindrical shell (1); The outfan of check valve A (4) is positioned at cylindrical shell; The input of check valve B (5) is positioned at cylindrical shell (1), and the outfan of check valve B (5) is positioned at outside the cylindrical shell, and the outfan of the input of check valve A (4) and check valve B (5) is provided with tapped swivel nut (6);
It also comprises syringe needle A (7) and syringe needle B (8); The end of syringe needle A (7) and syringe needle B (8) is provided with installation tube (9); Installation tube (9) is provided with external screw thread; Syringe needle A (7) is connected with swivel nut (6) on the check valve A (4) through installation tube (9), and syringe needle B (8) passes through installation tube (9) and is connected with swivel nut (6) on the check valve B (5).
2. double needle syringe according to claim 1 is characterized in that: the aperture of described syringe needle A (7) and external diameter are greater than aperture and the external diameter of syringe needle B (8).
3. double needle syringe according to claim 1 is characterized in that: the input of described check valve B (5) is provided with filter screen.
CN2012201256350U 2012-03-29 2012-03-29 Double-needle-head syringe Expired - Lifetime CN202490272U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201256350U CN202490272U (en) 2012-03-29 2012-03-29 Double-needle-head syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201256350U CN202490272U (en) 2012-03-29 2012-03-29 Double-needle-head syringe

Publications (1)

Publication Number Publication Date
CN202490272U true CN202490272U (en) 2012-10-17

Family

ID=46996518

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201256350U Expired - Lifetime CN202490272U (en) 2012-03-29 2012-03-29 Double-needle-head syringe

Country Status (1)

Country Link
CN (1) CN202490272U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104117114A (en) * 2014-07-02 2014-10-29 成都科创佳思科技有限公司 Injection syringe with two syringe needles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104117114A (en) * 2014-07-02 2014-10-29 成都科创佳思科技有限公司 Injection syringe with two syringe needles

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GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20121017