CN211634794U

CN211634794U - Local anesthesia syringe

Info

Publication number: CN211634794U
Application number: CN202020139399.2U
Authority: CN
Inventors: 刘长菊; 曹小兰; 陈明霞
Original assignee: Affiliated Hospital of Southwest Medical University
Current assignee: Affiliated Hospital of Southwest Medical University
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-10-09
Anticipated expiration: 2030-01-21

Abstract

The utility model relates to a local anesthesia syringe belongs to the medical instrument field. The local anesthetic syringe includes: the injection mounting seat is provided with an opening at one end; the piston is arranged in the injection mounting seat in a sliding mode, and a pressurization cavity is formed between the piston and the inner bottom wall of the injection mounting seat; one end of the air pipe is fixedly connected with the other end of the injection mounting seat and is communicated with the pressurization cavity; the output end of the hand-pinch squeezing ball is fixedly connected with the other end of the air pipe; the supporting part is hinged with the outer side wall of one end, close to the opening, of the injection mounting seat; and one end of the injection component is an extrusion end, the other end of the injection component is an injection end, the extrusion end is arranged in the injection mounting seat through the opening, and the injection component is detachably connected with the injection mounting seat. The beneficial effects of the utility model are that the injection narcotic that can the uniform velocity, stability is high when injecting simultaneously, can not appear rocking and arouse the uncomfortable condition of patient.

Description

Local anesthesia syringe

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to local anesthesia syringe.

Background

With the gradual development of medical technology, more and more diseases are treated by minimally invasive surgery of local anesthesia at present, and only local anesthesia is needed to be performed on the part of a patient needing the surgery, wherein a small amount of anesthetic is generally injected into the position needing the anesthesia by using an injector for the local anesthesia.

The position that the patient needs anesthesia will be injected to anesthesia to the present disposable syringe that still adopts general anesthesia, and the narcotic needs slow injection, generally all accompanies pain during the injection simultaneously, and when medical personnel adopted current disposable syringe injection narcotic, be difficult to control injection rate, hand appears rocking easily during the injection simultaneously, and drive injection needle rocks, can increase the pain sense that the patient injected the narcotic, is unfavorable for the fine acceptance therapy of patient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned technical problem and provide a local anesthesia syringe, injection narcotic that can the uniform velocity, stability is high when injecting simultaneously, can not appear rocking and arouse the uncomfortable condition of patient.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a local anesthetic syringe comprising:

the injection mounting seat is cylindrical, and one end of the injection mounting seat is opened;

the piston is arranged in the injection mounting seat in a sliding mode, and a pressurization cavity is formed between the piston and the inner bottom wall of the injection mounting seat;

one end of the air pipe is fixedly connected with the other end of the injection mounting seat and is communicated with the pressurization cavity;

the output end of the hand-pinch extrusion ball is fixedly connected with the other end of the air pipe, and the hand-pinch extrusion ball is extruded to inject air into the pressurization cavity through the air pipe so as to drive the piston to move towards the opening;

the support component is hinged with the outer side wall of one end, close to the opening, of the injection mounting seat;

the injection part, the one end of injection part is the extrusion end, and the other end is the injection end, the extrusion end warp the opening is arranged in the injection mount pad, the injection part with the injection mount pad can be dismantled and be connected, the injection end is kept away from the injection mount pad.

The utility model has the advantages that: through installing injection unit on the injection mount pad, when needs inject, rotate supporting component, pierce injection unit's injection end in the skin, make supporting component support near the injection position, thereby do not need medical personnel to hold injection unit always, thereby the condition that injection unit rocked does not appear, make the narcotic injection very stable, can not increase patient's pain or discomfort, pinch the squeeze ball through the extrusion hand simultaneously and make the even increase of atmospheric pressure in the pressurization cavity, thereby steady promotion piston removes, make injection unit can be the homodromous inject into the body with narcotic, make anesthesia effectual.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the supporting part comprises a supporting soft frame and a supporting rod, one end of the supporting rod is fixedly connected with the middle part of the supporting soft frame, and the other end of the supporting rod is hinged with the outer side wall of the injection mounting seat.

The beneficial effect of adopting the further scheme is that: the soft support is used for contacting with the skin of a patient to form a supporting effect, so that the comfort of the patient is improved.

Furthermore, the two ends of the supporting soft frame are arc-shaped and matched with arms or legs, and one end of the supporting soft frame is fixedly provided with a hand-held fixing block for being pressed by hands.

The beneficial effect of adopting the further scheme is that: the support of being convenient for support soft frame presses handheld fixed block through the hand simultaneously, can improve the stability of supporting soft frame, avoids supporting the random removal of soft frame to make the injection effect better.

Further, fixedly connected with connecting seat on the lateral wall of injection mount pad, the connecting seat is kept away from the one end of injection mount pad is equipped with changes the hole, it is equipped with the pivot to change downthehole internal rotation, the pivot with the inner wall zonulae occludens in commentaries on classics hole, the other end of bracing piece with the tip fixed connection of pivot, the bracing piece passes through the pivot with the connecting seat is articulated.

The beneficial effect of adopting the further scheme is that: the relative rotation of the support rod and the connecting seat is convenient.

Further, the piston includes movable push pedal, connection cylinder, sealed gum cover and rubber buffer, connect columniform one end with a side fixed connection of movable push pedal, connect the columniform other end with the one end fixed connection of rubber buffer, sealed gum cover is established connect on the cylinder, the other end orientation of rubber buffer the interior diapire of injection mount pad, the opposite side orientation of movable push pedal the opening.

The beneficial effect of adopting the further scheme is that: the rubber buffer and the sealing rubber sleeve form a double-sealing effect, the sealing performance of the pressurization cavity is improved, and the movable push plate is beneficial to moving.

Further, the injection part includes cylinder, syringe needle, plug, push rod and push disk, the one end of cylinder is uncovered, the plug warp of pushing the uncovered slip is arranged in the cylinder, the syringe needle with the other end fixed connection and the intercommunication of cylinder, the one end of push rod with push plug fixed connection, the other end with a side fixed connection of push disk, the uncovered one end of cylinder is arranged in the opening one end of injection mount pad to threaded connection, the push disk is arranged in the injection mount pad.

The beneficial effect of adopting the further scheme is that: the separation of the needle cylinder and the injection mounting seat is facilitated, the needle cylinder is replaced, and meanwhile, the pushing disc is pushed to move, so that the anesthetic in the needle cylinder is extruded at a constant speed.

Further, the syringe needle with the cylinder junction cover is equipped with the connection cap, the syringe needle enclosing cover is equipped with the safety cover, the one end of safety cover with connect the cap buckle and connect.

The beneficial effect of adopting the further scheme is that: the needle can be protected by the protective cover.

Furthermore, the outer side wall of the needle cylinder is provided with scale marks.

The beneficial effect of adopting the further scheme is that: the amount of the injected medicament can be observed through the scale marks.

Further, an air valve is arranged at the output end of the hand-pinching squeezing ball, and the other end of the air pipe is fixedly connected and communicated with the air valve.

The beneficial effect of adopting the further scheme is that: whether the gas in the pressurization chamber is discharged or not can be controlled through the gas valve.

Drawings

FIG. 1 is a front view of the local anesthesia injector of the present invention;

FIG. 2 is a right side view of the local anesthetic syringe according to the present invention in one state;

FIG. 3 is a right side view of the local anesthetic syringe of the present invention in another state;

fig. 4 is a sectional view of the local anesthesia injector of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a needle cylinder; 2. a needle head; 3. a connecting cap; 4. a protective cover; 5. pushing the plug; 6. a push rod; 7. scale lines; 8. an injection mount; 9. supporting the soft frame; 10. the fixing block is held by a hand; 11. an air tube; 12. pinching the squeeze ball by hand; 13. an air valve; 14. a support bar; 15. a connecting seat; 16. a rotating shaft; 17. a movable push plate; 18. pushing the disc; 19. a connecting cylinder; 20. sealing the rubber sleeve; 21. a rubber plug; 22. a plenum chamber.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Examples

As shown in fig. 1 to 4, the present embodiment provides a local anesthetic syringe, including: an injection mounting seat 8, a piston, an air pipe 11, a hand-pinching squeezing ball 12, a supporting component and an injection component.

The injection mount 8 is cylindrical, and one end of the injection mount 8 is open. The piston slides and establishes in injection mount pad 8, and the piston can move in injection mount pad 8, forms pressure chamber 22 between the inner diapire of piston and injection mount pad 8, and along with the atmospheric pressure change in pressure chamber 22, drives the piston and makes a round trip to move in injection mount pad 8. One end of the air pipe 11 is fixedly connected with the other end of the injection mounting seat 8 and is communicated with the pressurization cavity 22, air is injected into the pressurization cavity 22 through the air pipe 11, or the pressurization cavity 22 is deflated, wherein the air pipe 11 is a rubber hose. The output that the hand was held between the fingers extrusion ball 12 and the other end fixed connection of trachea 11, through extrusion hand pinch extrusion ball 12 production gas, in gas gets into pressure boost cavity 22 through trachea 11 for pressure increases in pressure boost cavity 22, thereby drives the piston and removes to the opening. The supporting part is articulated with the lateral wall that injection mount 8 is close to open-ended one end, rotates the supporting part when needs use for the supporting part forms the supporting effect with patient's skin contact, thereby does not need medical personnel to hold the syringe always. The one end of injection part is the extrusion end, the other end is the injection end, the extrusion end is arranged in injection mount pad 8 through the opening, the removal through the piston drives the removal of extrusion end, thereby realize injecting the narcotic, injection part can be dismantled with injection mount pad 8 and be connected, make injection part can change, and injection mount pad 8 can use repeatedly, practice thrift the cost, injection end keeps away from injection mount pad 8, thereby the injection end pierces the patient's skin, it is internal to inject the narcotic into the patient. The manual pinching and squeezing of the ball 12 is well known in the art, and the detailed structure and principle thereof will not be described in detail.

Preferably, in this embodiment, the supporting component includes a supporting soft frame 9 and a supporting rod 14, one end of the supporting rod 14 is fixedly connected to the middle of the supporting soft frame 9, and the other end of the supporting rod 14 is hinged to the outer side wall of the injection mounting seat 8. The supporting soft frame 9 is used for contacting with the skin of a patient to form a supporting effect, the supporting soft frame 9 is in a strip shape, and the supporting soft frame 9 can be made of rubber or silica gel. The support rod 14 is made of hard plastic, wherein the support rod 14 is fixedly bonded with the support soft frame 9.

Preferably, in this embodiment, the both ends of supporting soft frame 9 are the arc with arm or shank looks adaptation, when using, can erect supporting soft frame 9 on arm or shank, thereby form the supporting role, do not need medical personnel to hold, thereby avoid appearing medical personnel and rock the condition of syringe, support one of soft frame 9 and serve still to be fixed being equipped with the handheld fixed block 10 that is used for the hand to push down, hold the handheld fixed block 10 through the hand, can keep supporting soft frame 9 fixed, avoid supporting the random removal of soft frame 9, thereby make the injection effect better.

Preferably, in this embodiment, fixedly connected with connecting seat 15 on the lateral wall of injection mount pad 8, the one end that injection mount pad 8 was kept away from to connecting seat 15 is equipped with the commentaries on classics hole, the downthehole internal rotation of commentaries on classics is equipped with pivot 16, pivot 16 and the inner wall zonulae occludens in commentaries on classics hole, the tip fixed connection of the other end of bracing piece 14 and the one end of pivot 16, bracing piece 14 is articulated with connecting seat 15 through pivot 16, wherein the cover is equipped with wear-resisting cover on the pivot 16, wear-resisting cover and the inner wall zonulae occludens in commentaries on classics hole, make the rotation between pivot 16 and the commentaries on classics hole need medical personnel to rotate hard just can.

Preferably, in this embodiment, the piston includes movable push plate 17, connect cylinder 19, rubber sealing sleeve 20 and rubber buffer 21, connect cylinder 19's one end and a side fixed connection of movable push plate 17, connect cylinder 19's the other end and the one end fixed connection of rubber buffer 21, rubber sealing sleeve 20 cover is established on connecting cylinder 19, form sealed effect through rubber sealing sleeve 20, rubber buffer 21's the other end is towards the interior diapire of injection mount pad 8, rubber buffer 21's outer ramus and the inside wall in close contact with of installation injection mount pad simultaneously, thereby rubber buffer 21 and rubber sealing sleeve 20 form dual sealing effect, increase plenum chamber 22's leakproofness, do benefit to movable push plate 17's removal, movable push plate 17's another side is towards the opening. When the air pressure in the pressurizing chamber 22 is increased, the rubber plug 21 and the movable push plate 17 are pushed to move towards the opening, and the movable push plate 17 is contacted with the extrusion end in the moving process, so that the extrusion injection is realized.

Preferably, in this embodiment, the injection component includes a needle cylinder 1, a needle 2, a pushing plug 5, a pushing rod 6 and a pushing disc 18, one end of the needle cylinder 1 is open, the pushing plug 5 is slidably disposed in the needle cylinder 1 through the open, the pushing plug 5 is made of rubber, the needle 2 is fixedly connected and communicated with the other end of the needle cylinder 1, the needle 2 is used for penetrating into the skin of the patient, one end of the pushing rod 6 is fixedly connected with the pushing plug 5, the other end of the pushing rod 6 is fixedly connected with one side surface of the pushing disc 18, the pushing disc 18 is pressed to drive the pushing plug 6 to move, so as to drive the pushing plug 5 to press the inner space of the needle cylinder 1, so as to extrude the anesthetic in the needle cylinder 1 through the needle 2, the open end of the needle cylinder 1 is disposed in the open end of the injection mounting seat 8 and is in threaded connection, so as to facilitate the separation of the needle cylinder 1 from the injection mounting seat 8, the needle cylinder 1 is replaced, thereby moving the push plate 18 and thus achieving the injection of the anesthetic.

Preferably, in this embodiment,

syringe needle

2 and 1 junction cover of cylinder are equipped with and are connected

cap

3, and 2 enclosing covers of syringe needle are equipped with safety cover 4, and the one end of safety cover 4 is connected with 3 buckles of connection cap, and wherein connect cap 3 and be the toper, can protect syringe needle 2 through safety cover 4, when needs use, pull out safety cover 4 and can use.

Preferably, in the present embodiment, the outer sidewall of the syringe 1 is provided with scale lines 7, and the amount of the injected medicament can be observed through the scale lines 7.

Preferably, in this embodiment, an air valve 13 is disposed at an output end of the squeeze bulb 12, and the other end of the air tube 11 is fixedly connected and communicated with the air valve 13, wherein the air valve 13 can control whether to discharge the gas in the pressurizing chamber 22, and the air valve 13 is a prior art and is well known to those skilled in the art, and the detailed structure thereof is not described in detail.

When the embodiment is used, the protective cover 4 is pulled down, the needle 2 is arranged in the medicament bottle, the push disc 18 is pulled, the medicament is sucked into the needle cylinder 1, the needle cylinder 1 and the injection mounting seat 8 are fixedly arranged together, so that the push disk 18 is arranged in the injection mounting seat 8, the supporting soft frame 9 is rotated to pierce the needle head 2 into the skin, the supporting soft frame 9 is arranged near the injection position of the patient, by pressing the hand-held fixed block 10 and continuously squeezing the squeezing ball 12 by hands, the pressurizing chamber 22 is continuously filled with gas, after the gas pressure in the pressurizing chamber 22 is increased, the movable push plate 17 moves steadily towards the opening end of the injection mounting seat 8 under the action of air pressure, the push disk 18 is pushed to move after the movable push plate 17 contacts with the push disk 18, so that the pushing plug 5 extrudes the medicament in the needle cylinder 1, and the medicament is injected into the body of a patient through the needle head 2, thereby completing local anesthesia injection.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A local anesthetic syringe, comprising:

the injection mounting seat (8), the injection mounting seat (8) is cylindrical, and one end of the injection mounting seat (8) is opened;

the piston is arranged in the injection mounting seat (8) in a sliding mode, and a pressurization cavity (22) is formed between the piston and the inner bottom wall of the injection mounting seat (8);

one end of the air pipe (11) is fixedly connected with the other end of the injection mounting seat (8) and is communicated with the pressurization cavity (22);

the output end of the hand-pinching squeezing ball (12) is fixedly connected with the other end of the air pipe (11), and the piston is driven to move towards the opening by squeezing the hand-pinching squeezing ball (12) and injecting gas into the pressurization cavity (22) through the air pipe (11);

a support part hinged with the outer side wall of one end of the injection mounting seat (8) close to the opening;

the injection part, the one end of injection part is the extrusion end, and the other end is the injection end, the extrusion end warp the opening is arranged in injection mount pad (8), the injection part with injection mount pad (8) can be dismantled and be connected, the injection end is kept away from injection mount pad (8).

2. The local anesthesia injector of claim 1, wherein the support component comprises a support soft frame (9) and a support rod (14), one end of the support rod (14) is fixedly connected with the middle part of the support soft frame (9), and the other end of the support rod (14) is hinged with the outer side wall of the injection mounting seat (8).

3. The local anesthesia injector according to claim 2, characterized in that both ends of the supporting soft frame (9) are arc-shaped to match with the arms or legs, and a hand-held fixing block (10) for pressing by hands is further fixed on one end of the supporting soft frame (9).

4. The local anesthesia injector according to claim 2, wherein a connecting seat (15) is fixedly connected to an outer side wall of the injection mounting seat (8), a rotating hole is formed in one end, away from the injection mounting seat (8), of the connecting seat (15), a rotating shaft (16) is rotatably arranged in the rotating hole, the rotating shaft (16) is tightly connected with an inner wall of the rotating hole, the other end of the supporting rod (14) is fixedly connected with an end portion of the rotating shaft (16), and the supporting rod (14) is hinged to the connecting seat (15) through the rotating shaft (16).

5. The local anesthesia syringe of claim 1, wherein the piston comprises a movable push plate (17), a connecting cylinder (19), a sealing rubber sleeve (20) and a rubber plug (21), one end of the connecting cylinder (19) is fixedly connected with one side of the movable push plate (17), the other end of the connecting cylinder (19) is fixedly connected with one end of the rubber plug (21), the sealing rubber sleeve (20) is sleeved on the connecting cylinder (19), the other end of the rubber plug (21) faces the inner bottom wall of the injection mounting seat (8), and the other side of the movable push plate (17) faces the opening.

6. The local anesthesia injector according to claim 1, characterized in that the injection component comprises a needle cylinder (1), a needle (2), a pushing plug (5), a push rod (6) and a push disc (18), one end of the needle cylinder (1) is open, the pushing plug (5) is arranged in the needle cylinder (1) through the open sliding, the needle (2) is fixedly connected and communicated with the other end of the needle cylinder (1), one end of the push rod (6) is fixedly connected with the pushing plug (5), the other end is fixedly connected with one side of the push disc (18), the open end of the needle cylinder (1) is arranged in one end of the opening of the injection mounting seat (8) and is in threaded connection, and the push disc (18) is arranged in the injection mounting seat (8).

7. The local anesthesia injector of claim 6, characterized in that a connecting cap (3) is sleeved at the joint of the needle (2) and the needle cylinder (1), a protective cover (4) is covered outside the needle (2), and one end of the protective cover (4) is connected with the connecting cap (3) in a buckling manner.

8. The local anesthetic injector according to claim 6, characterized in that the outer side wall of the needle cylinder (1) is provided with scale marks (7).

9. The local anesthesia injector according to any one of claims 1 to 8, characterized in that an air valve (13) is arranged at the output end of the hand-pinching squeezing ball (12), and the other end of the air pipe (11) is fixedly connected and communicated with the air valve (13).