CN211486017U

CN211486017U - Medical anesthesia injector with accurate injection amount control function

Info

Publication number: CN211486017U
Application number: CN201922041925.1U
Authority: CN
Inventors: 陈松; 张林勇; 罗俊丽; 陈伟; 钟远平; 张鸿磊
Original assignee: Affiliated Hospital of Zunyi Medical University
Current assignee: Affiliated Hospital of Zunyi Medical University
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-09-15
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a medical anesthesia syringe with accurate control injection volume, including syringe barrel, syringe needle and piston post, the syringe needle is installed to the lower extreme of syringe barrel, first fixed block is installed to the rear end of syringe barrel, the through-hole has been seted up on the second fixed block, and the outside of second fixed block is provided with the fly leaf, the elastic backing plate is installed in the outside of fly leaf, the front side of fly leaf is provided with the clamp plate, the slider is installed to the lower extreme of connecting rod, and the lower extreme of slider installs the dead lever, the outside of slider is connected with reset spring, and reset spring sets up the inside at the installation piece. This anesthesia syringe is used in medical treatment with accurate control injection volume, the injection volume of control anesthetic that can be accurate improves anesthesia syringe's practicality, can avoid medical personnel when using because of the hand sweat lead to and the anesthesia syringe between the phenomenon of slippage appear.

Description

Medical anesthesia injector with accurate injection amount control function

Technical Field

The utility model relates to the medical relevant technical field, in particular to a medical anesthesia injector with accurate injection amount control.

Background

In general, an anesthetic is used to relieve pain of a patient when a local small surgical operation is performed in a hospital, and an anesthetic syringe is used to inject the anesthetic through the anesthetic syringe to block a sensory nerve conduction function at a surgical site.

However, the existing anesthetic syringe has the following problems:

1. when the existing anesthetic injector is used, scales on the anesthetic injector need to be observed for quantitative injection, and the injection amount of anesthesia is easy to be inaccurate due to the difference of observation angles;

2. the surface of the existing anesthetic syringe is smooth, so that medical workers are easy to slip off from the anesthetic syringe due to hand sweating when using the anesthetic syringe.

Aiming at the problems, the novel anesthesia injector is innovatively designed on the basis of the original anesthesia injector.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anesthesia syringe is used in medical treatment with accurate control injection volume to it needs to observe the scale on the anesthesia syringe and carry out the ration injection to propose current anesthesia syringe when using in solving above-mentioned background art, because the difference of observation angle leads to anesthesia injection volume inaccurate easily, anesthesia syringe surface is comparatively smooth, thereby leads to medical personnel to lead to when using and the problem of slippage appears between the anesthesia syringe because of the hand perspires easily.

In order to achieve the above object, the utility model provides a following technical scheme: a medical anesthesia injector with accurate injection amount control comprises an injector cylinder, an injection needle and a piston column, wherein the injection needle is installed at the lower end of the injector cylinder, the piston column is arranged at the upper end of the injector cylinder, a limiting rod is fixed on the piston column, a first fixed block is installed at the rear end of the injector cylinder, a second fixed block is installed at the front end of the injector cylinder, a through hole is formed in the second fixed block, a movable plate is arranged on the outer side of the second fixed block, an elastic base plate is installed on the outer side of the movable plate, a convex block is fixed on the elastic base plate, a pressing plate is arranged on the front side of the movable plate, a connecting rod is installed on the pressing plate, a sliding block is installed at the lower end of the connecting rod, a fixed rod is installed at the lower end of the sliding block, the lower end of the, and the return spring is arranged inside the mounting block.

Preferably, the first fixing block and the second fixing block are symmetrically arranged about a transverse central axis of the syringe barrel, through holes are uniformly distributed in the second fixing block, and the inner walls of the through holes are attached to the outer walls of the fixing blocks.

Preferably, the inner wall of the movable plate is attached to the outer wall of the syringe barrel, and the movable plate, the first fixed block and the second fixed block are of a slidable structure.

Preferably, the lugs are uniformly distributed on the elastic backing plate, the elastic backing plate and the movable plate are of an integrated structure, and the movable plate and the piston column are both provided with the elastic backing plate.

Preferably, the pressing plate and the sliding block are connected with each other through a connecting rod, and the pressing plate and the sliding block are connected with the connecting rod in a hinged mode.

Preferably, the outer wall of slider and the inner wall of installation piece are laminated each other, and are slidable structure between slider and the installation piece to pass through dead lever interconnect between slider and the fixture block.

Compared with the prior art, the beneficial effects of the utility model are that: the medical anesthetic injector with the accurate injection amount control function can accurately control the injection amount of anesthetic, improve the practicability of the anesthetic injector, and avoid the phenomenon of slippage between medical care personnel and the anesthetic injector due to hand sweating during use;

1. the pressing plate is pressed towards the inner side of the movable plate, the inner end of the clamping block is separated from the through hole under the action of the connecting rod and the sliding block due to the movement of the pressing plate, at the moment, when the movable plate is moved to the corresponding scale position, the clamping block is reset under the action of the reset spring, so that the clamping block enters the through hole again, the movable column is pushed, and when the end part of the limiting rod is contacted with the movable plate, a specified amount of anesthetic can be injected into a patient;

2. all install the elasticity backing plate on piston post and the fly leaf, and evenly distributed has the lug on the elasticity backing plate, can increase under the effect of lug and elasticity backing plate and the contact frictional force between the hand to avoided when carrying out the anesthetic injection because of medical personnel's hand sweat lead to with the piston post and the syringe barrel between take place the problem of slippage.

Drawings

FIG. 1 is a schematic structural view of the front side of the present invention;

FIG. 2 is a schematic view of a syringe barrel and a movable plate of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is the utility model discloses the second fixed block and through-hole look sideways at the structural schematic.

In the figure: 1. a syringe barrel; 2. an injection needle; 3. a piston post; 4. a limiting rod; 5. a first fixed block; 6. a second fixed block; 7. a through hole; 8. a movable plate; 9. an elastic backing plate; 10. a bump; 11. pressing a plate; 12. a connecting rod; 13. a slider; 14. fixing the rod; 15. a clamping block; 16. a return spring; 17. and (7) installing the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a medical anesthetic injector with accurate injection amount control comprises an injector cylinder 1, an injection needle 2, a piston column 3, a limiting rod 4, a first fixing block 5, a second fixing block 6, a through hole 7, a movable plate 8, an elastic cushion plate 9, a bump 10, a pressing plate 11, a connecting rod 12, a sliding block 13, a fixing rod 14, a clamping block 15, a reset spring 16 and a mounting block 17, wherein the injection needle 2 is mounted at the lower end of the injector cylinder 1, the piston column 3 is arranged at the upper end of the injector cylinder 1, the limiting rod 4 is fixed on the piston column 3, the first fixing block 5 is mounted at the rear end of the injector cylinder 1, the second fixing block 6 is mounted at the front end of the injector cylinder 1, the through hole 7 is formed in the second fixing block 6, the movable plate 8 is arranged on the outer side of the second fixing block 6, the elastic cushion plate 9 is mounted on the outer side of the movable plate 8, the front side of the movable plate 8 is provided with a pressing plate 11, a connecting rod 12 is mounted on the pressing plate 11, a sliding block 13 is mounted at the lower end of the connecting rod 12, a fixing rod 14 is mounted at the lower end of the sliding block 13, the lower end of the fixing rod 14 is mounted on a clamping block 15, a return spring 16 is connected to the outer side of the sliding block 13, and the return spring 16 is arranged inside a mounting block 17.

The first fixing block 5 and the second fixing block 6 are symmetrically arranged about a transverse central axis of the syringe barrel 1, through holes 7 are uniformly distributed in the second fixing block 6, the inner walls of the through holes 7 are attached to the outer walls of the clamping blocks 15, and the clamping blocks 15 are inserted into the through holes 7 in different positions, so that the purpose of changing the position of the movable plate 8 is achieved.

The inner wall of the movable plate 8 is attached to the outer wall of the syringe barrel 1, the movable plate 8 and the first fixed block 5 and the second fixed block 6 are of a slidable structure, and the movable plate 8 slides on the first fixed block 5 and the second fixed block 6 to stop on different scales.

The lugs 10 are uniformly distributed on the elastic backing plate 9, the elastic backing plate 9 and the movable plate 8 are of an integrated structure, the movable plate 8 and the piston column 3 are both provided with the elastic backing plate 9, and the contact friction force between the lugs 10 and the hands can be increased under the action of the elastic backing plate 9.

Through connecting rod 12 interconnect between clamp plate 11 and the slider 13, and be connected for articulated formula between clamp plate 11 and slider 13 and the connecting rod 12, the outer wall of slider 13 and the inner wall of installation piece 17 laminate each other, and be slidable structure between slider 13 and the installation piece 17, and through dead lever 14 interconnect between slider 13 and the fixture block 15, the motion of clamp plate 11 can make slider 13 slide in the inside of installation piece 17 under the effect of connecting rod 12, the motion of slider 13 drives fixture block 15 under the effect of dead lever 14 and carries out synchronous motion.

The working principle is as follows: when the medical anesthetic injector with the precise injection amount control function is used, firstly, as shown in fig. 1-4, when anesthetic is injected, as shown in fig. 2 and 3, the pressing plate 11 is pressed towards the inner side of the movable plate 8, the movement of the pressing plate 11 causes the sliding block 13 to drive the fixture block 15 to synchronously move under the action of the fixed rod 14 under the action of the connecting rod 12, the movement of the fixed rod 14 causes the inner end of the fixture block 15 to be separated from the through hole 7, at the moment, when the movable plate 8 is moved to the corresponding scale position, the pressing plate 11 is released, as shown in fig. 2 and 4, the pressing plate 11 is reset under the action of the reset spring 16, the reset of the pressing plate 11 causes the fixture block 15 to enter the through hole 7 again under the action of the sliding block 13 and the fixed rod 14, and when the fixture block 15 is inserted into the through hole 7, the purpose of fixing the movable plate 8 on, as shown in fig. 1, the piston column 3 is pushed, the motion of the piston column 3 drives the limit rod 4 to move synchronously, and when the end of the limit rod 4 contacts with the upper end face of the movable plate 8, a specified amount of anesthetic is injected into the patient;

as shown in fig. 1 and 2, the piston column 3 and the movable plate 8 are both provided with elastic pads 9, and the elastic pads 9 are uniformly distributed with protrusions 10, so that the contact friction force between the piston column 3 and the syringe barrel 1 due to the sweating of the hands of the medical staff during the injection of anesthetic can be increased, and the problem of slippage between the piston column 3 and the syringe barrel 1 due to the sweating of the hands of the medical staff is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A medical anesthesia injector with accurate injection amount control, which comprises an injector cylinder (1), an injection needle (2) and a piston column (3), and is characterized in that: an injection needle (2) is installed at the lower end of the injector cylinder (1), a piston column (3) is arranged at the upper end of the injector cylinder (1), a limiting rod (4) is fixed on the piston column (3), a first fixed block (5) is installed at the rear end of the injector cylinder (1), a second fixed block (6) is installed at the front end of the injector cylinder (1), a through hole (7) is formed in the second fixed block (6), a movable plate (8) is arranged on the outer side of the second fixed block (6), an elastic base plate (9) is installed on the outer side of the movable plate (8), a lug (10) is fixed on the elastic base plate (9), a pressing plate (11) is arranged on the front side of the movable plate (8), a connecting rod (12) is installed on the pressing plate (11), a sliding block (13) is installed at the lower end of the connecting rod (12), and a fixing rod (14) is installed, the lower end of the fixing rod (14) is installed on the clamping block (15), the outer side of the sliding block (13) is connected with a return spring (16), and the return spring (16) is arranged inside the installation block (17).

2. The anesthetic syringe for medical use having a precisely controlled injection amount according to claim 1, characterized in that: the first fixing block (5) and the second fixing block (6) are symmetrically arranged about a transverse central axis of the syringe barrel (1), through holes (7) are uniformly distributed in the second fixing block (6), and the inner walls of the through holes (7) are attached to the outer walls of the clamping blocks (15).

3. The anesthetic syringe for medical use having a precisely controlled injection amount according to claim 1, characterized in that: the inner wall of the movable plate (8) is attached to the outer wall of the syringe barrel (1), and the movable plate (8) and the first fixed block (5) and the second fixed block (6) are of a slidable structure.

4. The anesthetic syringe for medical use having a precisely controlled injection amount according to claim 1, characterized in that: the lugs (10) are uniformly distributed on the elastic backing plate (9), the elastic backing plate (9) and the movable plate (8) are of an integrated structure, and the movable plate (8) and the piston column (3) are both provided with the elastic backing plate (9).

5. The anesthetic syringe for medical use having a precisely controlled injection amount according to claim 1, characterized in that: the pressing plate (11) and the sliding block (13) are connected with each other through a connecting rod (12), and the pressing plate (11) and the sliding block (13) are connected with the connecting rod (12) in a hinged mode.

6. The anesthetic syringe for medical use having a precisely controlled injection amount according to claim 1, characterized in that: the outer wall of slider (13) and the inner wall of installation piece (17) are laminated each other, and be slidable structure between slider (13) and installation piece (17) to pass through dead lever (14) interconnect between slider (13) and fixture block (15).