CN214911076U - Auxiliary suction device of injector - Google Patents

Abstract

An auxiliary suction device of an injector relates to the technical field of medical instruments, and comprises a vertical sleeve, a horizontal sleeve, a driving rod and an inflating rod; the inner cavity of the vertical sleeve is divided into an upper cavity and a lower cavity by a one-way valve, wherein the upper cavity is a working chamber, the lower cavity is an air inlet chamber, a piston is arranged in the working chamber, and an air release valve is arranged at the lower part of the pipe wall of the working chamber; the lower end of the driving rod is fixedly connected with a piston in the vertical sleeve working bin, and the upper end of the driving rod and the lower part of the vertical sleeve are respectively provided with a core rod clamp and a needle cylinder clamp for clamping a piston core rod and a needle cylinder of the injector; the transverse sleeve is fixed at the lower part of the vertical sleeve, a tube cavity of the transverse sleeve is communicated with the air inlet bin of the vertical sleeve, a piston and a return spring for driving the piston to return are arranged in the transverse sleeve, and a vent hole is formed in the tube wall of the transverse sleeve; the left end of the inflating rod is fixedly connected with the piston in the transverse sleeve. The device provided by the utility model is particularly suitable for the occasion that the syringe suction resistance is great to use.

Description

Auxiliary suction device of injector

Technical Field

The utility model relates to a medical appliance technology, in particular to a technology of an auxiliary suction device of an injector.

Background

In clinic, medical staff often need to operate the syringe with one hand to aspirate, when operating the syringe (especially a large-capacity syringe), the aspiration is often inconvenient because of excessive resistance, in this case, the operator needs to increase the operation force, and simultaneously, the syringe is kept in a stable state, the operation is time-consuming and labor-consuming, and the operation efficiency is greatly influenced.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the above-mentioned prior art, the utility model aims to solve the technical problem that an auxiliary suction device of syringe that can improve medical personnel operating efficiency under the great condition of suction resistance is provided.

In order to solve the technical problem, the utility model provides a suction device is assisted to syringe which characterized in that: comprises a vertical sleeve, a horizontal sleeve, a driving rod and an inflating rod;

the vertical sleeve is a vertical straight pipe, the lower end of the vertical sleeve is closed, a one-way valve is arranged in the vertical sleeve, the through flow direction of the one-way valve is from bottom to top, the tube cavity of the vertical sleeve is divided into an upper chamber and a lower chamber by the one-way valve, the upper chamber is a working chamber, the lower chamber is an air inlet chamber, a piston capable of sliding up and down is arranged in the working chamber, and a release valve for discharging gas in the working chamber is arranged at the lower part of the tube wall of the working chamber;

the driving rod is inserted into the vertical sleeve in a movable fit mode, the lower end of the driving rod is fixedly connected with a piston in the vertical sleeve working bin, the upper end of the driving rod extends upwards out of the vertical sleeve, a core rod clamp for clamping a piston core rod of the injector is fixed at the upper end of the driving rod, and a needle cylinder clamp for clamping a needle cylinder of the injector is fixed at the lower part of the vertical sleeve;

the transverse sleeve is a transverse straight pipe, the transverse sleeve is fixed at the lower part of the vertical sleeve, a pipe cavity of the transverse sleeve is communicated with an air inlet bin of the vertical sleeve, a piston capable of sliding left and right is arranged in the transverse sleeve, a return spring for driving the piston to slide right is arranged on the piston, a vent hole is formed in the pipe wall of the transverse sleeve, and the vent hole is positioned between the stroke left dead center and the stroke right dead center of the piston in the transverse sleeve;

the air inflating rod is inserted into the transverse sleeve in a movable fit mode, the left end of the air inflating rod is fixedly connected with the piston in the transverse sleeve, and the right end of the air inflating rod extends out of the transverse sleeve rightwards.

Furthermore, the core bar clamp consists of a core bar locking screw and two arc-shaped core bar hoops, the right ends of the two core bar hoops are hinged with each other, screw holes are formed in the two core bar hoops, the core bar locking screw is inserted into the screw holes in the two core bar hoops, and the core bar locking screw and the two core bar hoops are in threaded fit;

the cylinder anchor clamps comprise cylinder locking screw and two curved cylinder staple bolts, and the right-hand member of two cylinder staple bolts is articulated each other to all seted up the screw on two cylinder staple bolts, cylinder locking screw inserts the screw on two cylinder staple bolts, and cylinder locking screw is screw-thread fit with two cylinder staple bolts.

The utility model provides a supplementary suction device of syringe can inflate in to erecting sleeve pipe working bin through the operation pole reciprocating motion of inflating, and the syringe piston core bar that promotes by core bar clamp centre gripping through the atmospheric pressure difference shifts up to can easily accomplish the suction operation of syringe, both make things convenient for operator one-hand operation, also more labour saving and time saving simultaneously can improve medical personnel operating efficiency under the great condition of suction resistance.

Drawings

Fig. 1 is a front view of the syringe auxiliary suction device according to the embodiment of the present invention, in which a vertical sleeve and a horizontal sleeve are cut;

fig. 2 is a top view of a syringe clamp in an injector assisted suction device in accordance with an embodiment of the present invention;

fig. 3 is a top view of a core rod holder in a syringe assisted aspiration device according to an embodiment of the present invention.

Detailed Description

The following description will be made in detail with reference to the accompanying drawings, but the present embodiment is not intended to limit the present invention, and all similar structures and similar variations thereof adopted by the present invention should be included in the protection scope of the present invention, and the relations between the numbers of the components in the present invention are shown.

As shown in fig. 1, the embodiment of the present invention provides an auxiliary pumping device for a syringe, which is characterized in that: comprises a vertical sleeve 1, a horizontal sleeve 4, a driving rod 2 and an inflating rod 5;

the vertical sleeve 1 is a vertical straight pipe, the lower end of the vertical sleeve is closed, a one-way valve 10 is arranged in the vertical sleeve, the through flow direction of the one-way valve 10 is from bottom to top, the tube cavity of the vertical sleeve is divided into an upper chamber and a lower chamber by the one-way valve 10, the upper chamber is a working chamber, the lower chamber is an air inlet chamber, a piston 3 capable of sliding up and down is arranged in the working chamber, and a release valve 11 for discharging gas in the working chamber is arranged at the lower part of the tube wall of the working chamber;

the driving rod 2 is inserted into the vertical sleeve 1 in a movable fit mode, the lower end of the driving rod is fixedly connected with the piston 3 in the vertical sleeve working bin, the upper end of the driving rod extends upwards out of the vertical sleeve, a core rod clamp 8 for clamping a piston core rod 12 of the injector is fixed at the upper end of the driving rod, and a needle cylinder clamp 7 for clamping a needle cylinder 13 of the injector is fixed at the lower part of the vertical sleeve;

the transverse sleeve 4 is a transverse straight pipe, the transverse sleeve 4 is fixed at the lower part of the vertical sleeve 1, the pipe cavity of the transverse sleeve is communicated with the air inlet bin of the vertical sleeve, a piston 6 capable of sliding left and right is arranged in the transverse sleeve, a return spring 9 for driving the piston to slide right is arranged on the piston 6, a vent hole 14 is formed in the pipe wall of the transverse sleeve, and the vent hole 14 is positioned between the stroke left dead center and the stroke right dead center of the piston 6 in the transverse sleeve;

the inflating rod 5 is inserted into the transverse sleeve 4 in a movable fit mode, the left end of the inflating rod 5 is fixedly connected with the piston 6 in the transverse sleeve, and the right end of the inflating rod 5 extends out of the transverse sleeve rightwards.

The embodiment of the utility model provides an in, return spring's left end tightly supports perpendicular sheathed tube inner wall, and return spring's right-hand member tightly supports horizontal intraductal piston, the utility model discloses in other embodiments, return spring also can adopt other assembly methods, for example with return spring's right-hand member and horizontal intraductal wall of sleeve right-hand member rigid coupling, with return spring's left end and horizontal intraductal piston rigid coupling, also can play the function of ordering about piston right return to stroke right dead point in horizontal cover.

As shown in fig. 2-3, in the embodiment of the present invention, the core bar fixture comprises a core bar locking screw 82 and two arc-shaped core bar hoops 81, the right ends of the two core bar hoops 81 are hinged to each other, and both the two core bar hoops 81 are provided with screw holes, the core bar locking screw 82 is inserted into the screw holes of the two core bar hoops 81, and the core bar locking screw and the two core bar hoops are both in threaded fit;

the syringe anchor clamps comprise syringe locking screw 72 and two curved syringe staple bolts 71, and the right-hand member of two syringe staple bolts 71 is articulated each other to all seted up the screw on two syringe staple bolts 71, syringe locking screw 72 inserts the screw on two syringe staple bolts 71, and syringe locking screw and two syringe staple bolts are screw-thread fit.

The embodiment of the utility model provides a theory of operation as follows:

firstly, a syringe barrel 13 is clamped by a barrel clamp 7, a syringe piston core rod 12 is clamped by a core rod clamp 8, then an operator presses the right end of the inflating rod 5 by fingers to push the piston 6 in the transverse sleeve to move leftwards, when the piston 6 moves leftwards to a stroke left dead center, the operator removes the pressing force on the inflating rod, the piston 6 can move backwards to the stroke right dead center under the action of a return spring, and the right end of the inflating rod 5 is pressed intermittently repeatedly in such a way, so that the piston 6 can be driven to reciprocate between the stroke left dead center and the stroke right dead center;

when the piston 6 moves leftwards, air in the transverse sleeve is pressed into the air inlet bin of the vertical sleeve and then enters the working bin of the vertical sleeve through the one-way valve 10; when the piston 6 moves back to the right dead center of the stroke, external air is supplied into the cross sleeve through the vent hole 14;

thus, along with the reciprocating motion of the piston 6 between the stroke left dead center and the stroke right dead center, the continuous inflation of the vertical sleeve working bin can be realized, the piston 3 in the vertical sleeve working bin can move upwards under the pushing of air pressure, the driving rod 2 drives the core bar clamp 8 to move upwards, and the injector piston core bar 12 clamped by the core bar clamp 8 also moves upwards along with the upward movement, so that the pumping operation of the injector is realized;

after the pumping operation is finished, the injector is disassembled, the air release valve 11 is opened to discharge the gas in the vertical sleeve working bin, and the piston 3 can fall back to the initial position.

Claims (2)

1. A syringe assisted aspiration device, comprising: comprises a vertical sleeve, a horizontal sleeve, a driving rod and an inflating rod;

the vertical sleeve is a vertical straight pipe, the lower end of the vertical sleeve is closed, a one-way valve is arranged in the vertical sleeve, the through flow direction of the one-way valve is from bottom to top, the tube cavity of the vertical sleeve is divided into an upper chamber and a lower chamber by the one-way valve, the upper chamber is a working chamber, the lower chamber is an air inlet chamber, a piston capable of sliding up and down is arranged in the working chamber, and a release valve for discharging gas in the working chamber is arranged at the lower part of the tube wall of the working chamber;

the driving rod is inserted into the vertical sleeve in a movable fit mode, the lower end of the driving rod is fixedly connected with a piston in the vertical sleeve working bin, the upper end of the driving rod extends upwards out of the vertical sleeve, a core rod clamp for clamping a piston core rod of the injector is fixed at the upper end of the driving rod, and a needle cylinder clamp for clamping a needle cylinder of the injector is fixed at the lower part of the vertical sleeve;

the transverse sleeve is a transverse straight pipe, the transverse sleeve is fixed at the lower part of the vertical sleeve, a pipe cavity of the transverse sleeve is communicated with an air inlet bin of the vertical sleeve, a piston capable of sliding left and right is arranged in the transverse sleeve, a return spring for driving the piston to slide right is arranged on the piston, a vent hole is formed in the pipe wall of the transverse sleeve, and the vent hole is positioned between the stroke left dead center and the stroke right dead center of the piston in the transverse sleeve;

the air inflating rod is inserted into the transverse sleeve in a movable fit mode, the left end of the air inflating rod is fixedly connected with the piston in the transverse sleeve, and the right end of the air inflating rod extends out of the transverse sleeve rightwards.

2. The syringe assisted aspiration device of claim 1, wherein: the core bar clamp consists of a core bar locking screw and two arc-shaped core bar hoops, the right ends of the two core bar hoops are hinged with each other, screw holes are formed in the two core bar hoops, the core bar locking screw is inserted into the screw holes in the two core bar hoops, and the core bar locking screw is in threaded fit with the two core bar hoops;

the cylinder anchor clamps comprise cylinder locking screw and two curved cylinder staple bolts, and the right-hand member of two cylinder staple bolts is articulated each other to all seted up the screw on two cylinder staple bolts, cylinder locking screw inserts the screw on two cylinder staple bolts, and cylinder locking screw is screw-thread fit with two cylinder staple bolts.

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