CN210873051U

CN210873051U - Syringe convenient to suction liquid medicine

Info

Publication number: CN210873051U
Application number: CN201921347636.8U
Authority: CN
Inventors: 王凯利; 程闪; 邱江江
Original assignee: Second Affiliated Hospital of Zhengzhou Unviersity
Current assignee: Second Affiliated Hospital of Zhengzhou Unviersity
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-30
Anticipated expiration: 2029-08-19

Abstract

A syringe convenient for sucking liquid medicine, which effectively solves the problem of difficulty in sucking medicine or injecting medicine; the needle cylinder is axially arranged from top to bottom, a hemispherical stop block is coaxially arranged at the lower end of the needle cylinder, a circular tube with the upper end communicated with the needle cylinder is coaxially arranged in the stop block, the lower end of the circular tube penetrates through the stop block and is coaxially provided with a needle head, a piston is slidably connected in the needle cylinder, an inverted L-shaped exhaust hole which is positioned on the right side of the circular tube is formed in the stop block, the lower end and the right end of the exhaust hole respectively penetrate through the stop block, the lower end of the exhaust hole is connected with a fixed shaft; make medical personnel resistance when carrying out medicine suction and injection reduce, reduced medical personnel's operating strength, saved medical personnel's time, make medical personnel when carrying out medicine suction and injection, more convenient and fast, this simple structure, convenient operation conceives the novelty, and the practicality is strong.

Description

Syringe convenient to suction liquid medicine

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to syringe convenient to suction liquid medicine.

Background

The syringe is a common medical appliance, mainly uses the syringe needle to aspirate or inject into gas or liquid, when aspirating the medicine at present, can produce the negative pressure in the medicine bottle, can be very hard when directly aspirating with the syringe, when injecting the medicine into the bottle, because of the influence of air pressure in the bottle, directly inject into under the prerequisite of not carrying out the secondary operation and have certain difficulty.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a syringe convenient for sucking liquid medicine, which effectively solves the problem of difficulty in sucking medicine or injecting medicine.

The technical scheme of its solution is, the utility model discloses an upper and lower axial cylinder, the coaxial dog that is equipped with the hemisphere form of cylinder lower extreme, the coaxial pipe that is equipped with upper end and cylinder intercommunication in the dog, the pipe lower extreme runs through dog and coaxial arrangement has the syringe needle, sliding connection has the piston in the cylinder, set up the exhaust hole that is located the pipe right side and falls L shape on the dog, exhaust hole lower extreme and right-hand member run through the dog respectively, axial fixed axle about exhaust hole lower extreme is connected with, coaxial being equipped with in the fixed axle can reciprocate and with the needle stalk that the exhaust hole communicates.

Compared with the prior art, the beneficial effects of the utility model are that: it is rational in infrastructure, convenient to use sets up exhaust hole, check valve and the exhaust check valve of admitting air, makes medical personnel resistance when carrying out medicine suction and injection reduce, has reduced medical personnel operating strength, has saved medical personnel's time, is equipped with swivel and fixed axle simultaneously, makes medical personnel when carrying out medicine suction and injection into, more convenient and fast, this simple structure, convenient operation thinks about novelty, and the practicality is strong.

Drawings

Fig. 1 is an isometric view of the present invention.

Fig. 2 is a half-section main visual axis mapping diagram of the utility model.

Figure 3 is the utility model discloses a partially cut owner and look axonometric drawing.

Fig. 4 is an enlarged view of a in fig. 2 according to the present invention.

Fig. 5 is an enlarged view of B in fig. 3 according to the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

By figure 1 to 5, axial cylinder 1 about including, the coaxial dog 2 that is equipped with hemisphere form of 1 lower extreme of cylinder, the coaxial pipe 3 that is equipped with upper end and 1 intercommunication of cylinder in the

dog

2, 3 lower extremes of pipe run through dog 2 and coaxial arrangement have syringe needle 4, sliding connection has piston 5 in the cylinder 1, set up the exhaust hole 6 that is located 3 right sides of pipe and falls the L shape on the dog 2, dog 2 is run through respectively to exhaust hole 6 lower extreme and right-hand member, exhaust hole 6 lower extreme is connected with upper and lower axial fixed axle 7, coaxial being equipped with in the fixed axle 7 can reciprocate and with the needle stalk 8 of exhaust hole 6 intercommunication.

In order to facilitate the piston 5 to move up and down, the upper end of the piston 5 is coaxially provided with a piston shaft 9, and the upper end of the piston shaft 9 extends out of the needle cylinder 1 and is coaxially provided with a piston handle 10.

In order to prevent the piston shaft 9 from shaking left and right during movement, the upper end of the needle cylinder 1 is coaxially provided with a baffle ring 11, and the piston shaft 9 is connected with the baffle ring 11 in a sliding manner.

In order to prevent the liquid from flowing out through the exhaust hole 6, the upper end of the exhaust hole 6 is provided with a baffle plate 12 in the vertical direction, the left side of the exhaust hole 6 is provided with an exhaust check valve 13 positioned on the left side of the baffle plate 12, and the right side of the exhaust hole 6 is provided with an air inlet check valve 14 positioned on the right side of the baffle plate 12.

In order to enable the needle stem 8 to move up and down, a sliding groove 15 which is in the vertical direction and has a forward opening is formed in the fixed shaft 7, the lower end of the sliding groove 15 does not penetrate through the fixed shaft 7, a sliding block 16 in the vertical direction is arranged on the upper side of the needle stem 8, the front end of the sliding block 16 extends out of the sliding groove 15, a rotating ring 17 penetrating through the sliding block 16 is in threaded connection with the fixed shaft 7, and the rotating ring 17 is in sliding connection with the sliding block 16.

In order to facilitate the needle stem 8 to move up and down, a circular groove 18 which is communicated up and down is coaxially arranged on the fixed shaft 7, and the needle stem 8 is connected with the circular groove 18 in a sliding way.

When the utility model is used, the rotating ring 17 is rotated clockwise, the rotating ring 17 moves downwards, the rotating ring 17 drives the sliding block 16 to move downwards, meanwhile, the sliding block 16 drives the needle stem 8 to move downwards along the sliding groove 15, when the needle stem 8 is adjusted to a proper height, the rotating ring 17 stops rotating, and at the moment, the position of the self-locking rotating ring 17 driven by the screw thread is fixed;

when medicine needs to be sucked from the medicine bottle, the needle head 4 and the needle stem 8 are simultaneously inserted into the medicine bottle to move the piston handle 10 upwards, the piston handle 10 drives the piston 5 to move upwards through the piston shaft 9, the medicine in the medicine bottle flows into the needle cylinder 1 through the needle head 4 and the circular tube 3 under the action of air pressure in the needle cylinder 1, negative pressure is generated in the bottle along with the medicine flowing into the needle cylinder, air flows into the medicine bottle from the air exhaust hole 6 through the air inlet one-way valve 14, the force during suction is reduced, and medical care personnel are facilitated;

when medicine is needed to be injected into the medicine bottle, the rotating ring 17 is rotated clockwise to adjust the needle stem 8 to a proper height, the needle head 4 and the needle stem 8 are simultaneously inserted into the medicine bottle, the lower end of the needle stem 8 is always higher than the liquid level of the liquid medicine in the bottle, the piston handle 10 is pressed downwards, the piston handle 10 drives the piston 5 to move downwards through the piston shaft 9, the piston 5 pushes the medicine to flow into the medicine bottle through the needle head 4 along the circular tube 3, and simultaneously, under the action of the air pressure in the bottle, the air in the bottle is discharged outwards through the exhaust check valve along the exhaust hole 6 through the needle stem 8, so that the air pressure in the bottle is reduced, and the resistance during injection is reduced;

the suction and injection of the medicine are completed through the above operations.

Claims

1. The utility model provides an injector convenient to suction liquid medicine, axial cylinder (1) from top to bottom, a serial communication port, cylinder (1) lower extreme coaxial is equipped with hemisphere form dog (2), coaxial pipe (3) that are equipped with upper end and cylinder (1) intercommunication in dog (2), dog (2) and coaxial arrangement have syringe needle (4) are run through to pipe (3) lower extreme, sliding connection has piston (5) in cylinder (1), set up exhaust hole (6) that are located pipe (3) right side and fall L shape on dog (2), dog (2) are run through respectively to exhaust hole (6) lower extreme and right-hand member, axial fixed axle (7) about exhaust hole (6) lower extreme is connected with, coaxial needle stalk (8) that can reciprocate and communicate with exhaust hole (6) in fixed axle (7) are equipped with.

2. Syringe for facilitating the aspiration of a medical fluid according to claim 1, characterized in that the upper end of the piston (5) is coaxially provided with a piston shaft (9), the upper end of the piston shaft (9) extends out of the syringe (1) and is coaxially provided with a piston handle (10).

3. Syringe for facilitating the aspiration of a medical fluid according to claim 1, wherein the upper end of the barrel (1) is coaxially provided with a stopper ring (11), and the piston shaft (9) is slidably connected with the stopper ring (11).

4. The syringe convenient for drawing liquid medicine according to claim 1, wherein the upper end of the exhaust hole (6) is provided with a baffle (12) in the vertical direction, the left side of the exhaust hole (6) is provided with an exhaust check valve (13) positioned at the left side of the baffle (12), and the right side of the exhaust hole (6) is provided with an intake check valve (14) positioned at the right side of the baffle (12).

5. The syringe convenient to aspirate medical liquid according to claim 1, wherein the fixed shaft (7) is provided with a slide groove (15) which is opened forward in the vertical direction, the lower end of the slide groove (15) does not penetrate through the fixed shaft (7), the upper side of the needle stem (8) is provided with a slide block (16) in the vertical direction, the front end of the slide block (16) extends out of the slide groove (15), the fixed shaft (7) is in threaded connection with a rotating ring (17) penetrating through the slide block (16), and the rotating ring (17) is in sliding connection with the slide block (16).

6. The syringe convenient for sucking liquid medicine according to claim 1, wherein the fixed shaft (7) is coaxially provided with a circular groove (18) which is vertically penetrated, and the needle stem (8) is slidably connected with the circular groove (18).