CN113144370A

CN113144370A - Quantitative injection device for operation local anesthesia medicament

Info

Publication number: CN113144370A
Application number: CN202110391841.XA
Authority: CN
Inventors: 陈玉芬; 张志娟; 王丹; 刘发生; 张仁生; 李玉兰
Original assignee: Minqin County People's Hospital
Current assignee: Minqin County People's Hospital
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-07-23
Anticipated expiration: 2041-04-13
Also published as: CN113144370B

Abstract

The invention discloses a quantitative injection device of a medicament for local anesthesia in an operation, which relates to the technical field of medical auxiliary equipment and comprises a bottom plate, an electric telescopic rod, a cantilever and an injection mechanism, wherein the top wall of the bottom plate is fixedly provided with the electric telescopic rod, the side wall of the electric telescopic rod is fixedly provided with a driving motor, the driving motor is fixedly arranged on the top wall of the bottom plate, the side wall of the electric telescopic rod is fixedly provided with a fixed seat, the side wall of the fixed seat is provided with a mounting plate by a bolt, the side wall of the mounting plate is fixedly provided with the cantilever, the end part of the cantilever is provided with the injection mechanism, the cantilever is adopted to drive the injection mechanism to move, the multidimensional movement of the injection mechanism is realized, the injection process is more stable, the driving mechanism is arranged in the injection mechanism, the driving mechanism adopts an air pump as the driving force, and is convenient for medical personnel to control the injection rate of the medicament, and a pair of auxiliary barrels is symmetrically arranged on two sides of the needle cylinder, so that different liquid medicines can be injected into the same position of a patient.

Description

Quantitative injection device for operation local anesthesia medicament

Technical Field

The invention relates to the technical field of medical auxiliary equipment, in particular to a quantitative injection device for a local anesthetic for an operation.

Background

Local anesthesia, also known as regional anesthesia, refers to the application of local anesthetics to body parts under the conscious state of the patient, so that the sensory nerve conduction function of a certain part of the body is temporarily blocked, the motor nerve conduction remains intact or is simultaneously blocked to different degrees, the blocking should be completely reversible without any tissue damage, and the local anesthesia has the advantages of simplicity, convenience, safety, patient conscious, less complications and little influence on the physiological function of the patient.

When part of anesthetic is injected, because the working parts are different, the needed anesthetic is not only the same, and some anesthetic may cause severe stabbing pain or burning pain for patients, and in order to relieve the pain, before part of anesthetic is injected, sterile normal saline is pre-injected locally to relieve the pain of the patients, so that the patients need to be punctured for many times, on one hand, the patients can be suffered from great pain due to the operation of puncturing for many times, on the other hand, the injection positions can not be accurately ensured to be the same due to the puncturing for many times, so that the relieving effect of the normal saline is greatly reduced, meanwhile, in the existing anesthetic injection device, the anesthetic is injected by pushing the piston, because the diffusion speed of the anesthetic is slow and the injection for many times is needed, when medical personnel hold the injector to inject, when pushing the piston rod, the stability of the hand is poor, and the feeding amount is not easy to control, and also easily causes shaking, thereby increasing the pain of the patient.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a quantitative injection device for a local anesthetic for operation, which realizes the injection of liquid medicine for multiple times at the same puncture position and greatly relieves the pain of a patient.

In order to achieve the purpose, the invention provides the following technical scheme: including bottom plate, electric telescopic handle, cantilever and injection mechanism, fixed mounting has electric telescopic handle on the roof of bottom plate to fixed mounting has driving motor on electric telescopic handle's the lateral wall, and driving motor fixed mounting is on the roof of bottom plate, and fixed mounting has the fixing base on electric telescopic handle's the lateral wall simultaneously, and the mounting panel is installed to the bolt on the lateral wall of fixing base, and fixed mounting has the cantilever on the lateral wall of mounting panel, and wherein injection mechanism is installed to the tip of cantilever.

As a further scheme of the invention: the injection mechanism comprises a fixing column, a driving column and a needle cylinder, wherein a fixing groove is formed in the right side end of the fixing column, the driving column is slidably mounted in the fixing groove, a push rod is slidably mounted on the left side wall of the fixing groove, the right side end of the push rod is fixedly mounted on the side wall of the driving column, a driving groove is formed in the driving rod, a driving mechanism is arranged in the driving groove, the needle cylinder is sleeved in the driving groove, a plurality of mounting holes are formed in the end portion of the left side of the fixing column, and the fixing column is mounted at the end portion of a cantilever through a mounting hole bolt.

As a further scheme of the invention: the driving mechanism comprises a fixed pipe, a telescopic pipe and a push block, wherein the fixed pipe is fixedly arranged on the left side wall of the driving groove, the other end of the fixed pipe is fixedly arranged in the partition plate, the partition plate is fixedly arranged on the side wall of the driving groove, the fixed pipe is positioned at one end of the partition plate and fixedly connected with the telescopic pipe, the other end of the telescopic pipe is fixedly arranged on the left side wall of the push block, an air outlet pipe and an air inlet pipe are symmetrically arranged on the upper side wall and the lower side wall of the fixed pipe, the other end of the air inlet pipe is connected with a first one-way valve which is fixedly arranged on the bottom wall of a fixed column, the other end of the first one-way valve is connected with an air pump through a connecting air pipe, the air pump is fixedly arranged on the top wall of the bottom plate, the other end of the air outlet pipe extends out of the side wall of the fixed column, and the extending end of the air outlet pipe is connected with a second one-way valve, the second check valve is fixedly installed on the top wall of the fixing column.

As a further scheme of the invention: the bottom fixed mounting of fixed column has positioning mechanism, and positioning mechanism includes third check valve and inflater, and wherein third check valve fixed mounting is on the left side wall of riser, riser fixed mounting is on the diapire of fixed column, and fixed mounting has the inflater on the right side wall of riser, and the gas outlet and the third check valve intercommunication of inflater are in the same place, and the end of giving vent to anger of third check valve passes through the collecting pipe and links together with the connecting gas pipe simultaneously, has seted up the observation window on the outer wall of fixed column simultaneously, and the observation window is located actuating mechanism directly over.

As a further scheme of the invention: the syringe is characterized in that a partition plate is fixedly arranged in the syringe and is divided into an upper liquid storage cavity and a lower liquid storage cavity by the partition plate, a piston is slidably arranged in the liquid storage cavity, a connecting rod is fixedly arranged on the left side wall of the piston, the other end of the connecting rod extends out of the side wall of the syringe, the extending ends of the two connecting rods are connected together by a push plate, a pair of guide chutes are arranged in one side wall of the syringe far away from the connecting rod, the right side ends of the two guide chutes are communicated together by a confluence chute, the other end of the confluence chute is communicated with the needle head, the needle head is fixedly arranged on the right side wall of the syringe, two auxiliary barrels are symmetrically arranged on the upper side wall and the lower side wall of the syringe, an extrusion rod is slidably arranged in the auxiliary barrels, one end of the auxiliary barrel far away from the extrusion rod is fixedly provided with a liquid guide pipe, a fourth one-way valve is fixedly arranged on the side wall of the syringe near the auxiliary barrel, and the output end of the fourth one-way valve is communicated with the liquid storage cavity, and the input end of the fourth one-way valve is fixedly provided with a clamping mechanism, and the fourth one-way valve is connected with the catheter through the clamping mechanism.

As a further scheme of the invention: the clamping mechanism comprises a connecting cylinder, a convex block and a clamping rod, the connecting cylinder is fixedly arranged at the input end of the fourth one-way valve, wherein the inner diameter of the connecting cylinder is the same as the outer diameter of the catheter, a left side groove is arranged on the inner wall of the left side of the connecting cylinder, a convex block is arranged in the left side groove in a sliding way, wherein the convex block is communicated with the left side groove through the extrusion spring, the left side wall of the liquid guide pipe is symmetrically provided with first clamping grooves, the diameter of the first clamping grooves is the same as that of the convex block, meanwhile, the right side inner wall of the connecting cylinder is provided with a right through hole, the right through hole and the left side groove are on the same straight line, a clamping rod is arranged in the right through hole in a sliding way, a pulling plate is fixedly arranged at the right end of the clamping rod and is connected with the outer wall of the connecting cylinder through a pair of tensioning springs, wherein, the right outer wall of the catheter is symmetrically provided with a second clamping groove, and the diameters of the second clamping groove and the clamping rod are the same.

As a further scheme of the invention: the inside fixed mounting of fixed pipe has the telescopic link, and the other end of telescopic link links together with the lateral wall of ejector pad, and the winding has round reset spring on the outer wall of flexible pipe simultaneously, and reset spring's both ends are fixed mounting respectively on the lateral wall of ejector pad and baffle.

As a further scheme of the invention: fixed mounting has a plurality of sliders on the outer wall of drive post, and slider slidable mounting has seted up the internal thread on the tip inner wall in drive groove simultaneously on the lateral wall of fixed slot for the screw thread installation cylinder to the inside fixed mounting in drive groove has the stopper, and the through-hole has been seted up to the inside of stopper, and the diameter of through-hole is the same with the diameter of ejector pad.

As a further scheme of the invention: the needle head is kept away from to the cylinder on a lateral wall fixed external screw thread that has seted up, external screw thread and internal thread match each other, the inside slidable mounting of guiding gutter has the sealing rod simultaneously, the tip of sealing rod stretches out from the lateral wall of cylinder.

As a still further scheme of the invention: the utility model discloses a wheel, including mounting panel, bracing piece, electric telescopic handle, universal wheel, self-locking function, the diapire of mounting panel is last to rotate and to be installed the bracing piece, and the other end fixed mounting of bracing piece is on electric telescopic handle's outer wall to install a plurality of universal wheels on the diapire of bottom plate, the wheel that has self-locking function is chooseed for use to the universal wheel.

Compared with the prior art, the invention has the beneficial effects that: the invention is provided with a cantilever, an injection mechanism is fixedly arranged at the end part of the cantilever, the cantilever is adopted to drive the injection mechanism to move and fix, the invention is suitable for fixing requirements of different anesthesia positions, and the cantilever is adopted to replace the traditional handheld fixing mode, the injection process is more stable, the device is prevented from shaking, meanwhile, a needle cylinder is driven by a driving mechanism, the driving mechanism adopts an air pump as driving force, the medical personnel can conveniently control the injection rate of the liquid medicine, in addition, a pair of auxiliary cylinders are symmetrically arranged at the two sides of the needle cylinder, different types of liquid medicines are arranged in the two auxiliary cylinders, in the injection process, only the liquid medicine in the corresponding auxiliary cylinder needs to be injected into the needle cylinder, and is injected into the body of a patient from the needle cylinder, different liquid medicines can be injected into the same position of the patient, the damage caused by multiple times of puncture is greatly relieved, and simultaneously, the liquid medicine is ensured to act on the same position, the matching work effect between the medicines is better.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the injection mechanism of the present invention.

Fig. 3 is a schematic view of the driving column structure of the present invention.

Fig. 4 is a schematic view of the internal mechanism of the driving mechanism of the present invention.

Fig. 5 is a schematic view of the syringe structure according to the present invention.

Fig. 6 is a partial enlarged view of the present invention at a.

As shown in the figure: 1. a bottom plate, 2, an electric telescopic rod, 3, a fixed seat, 4, a mounting plate, 5, a cantilever, 6, a fixed column, 7, a driving column, 8, a syringe, 9, an air pump, 10, a driving motor, 11, a universal wheel, 12, a support rod, 13, a connecting air pipe, 14, a fixed groove, 15, a mounting hole, 16, a push rod, 17, an auxiliary cylinder, 18, a needle, 19, a driving groove, 20, a slide block, 21, a fixed pipe, 22, an extension pipe, 23, a push block, 24, a partition plate, 25, an air outlet pipe, 26, an air inlet pipe, 27, a limit block, 28, a first one-way valve, 29, a second one-way valve, 30, an air filter, 31, an internal thread, 32, a vertical plate, 33, a third one-way valve, 34, a confluence pipe, 35, an inflator, 36, a telescopic rod, 37, a partition plate, 38, a fourth one-way valve, 39, a liquid guide pipe, 40, a piston, 41, a connecting rod, 42, a push plate, 43 and an auxiliary rod, 44. the limiting block, 45, the spout, 46, the extrusion pole, 47, the guiding gutter, 48, converge the groove, 49, the sealing rod, 50, the connecting cylinder, 51, left side groove, 52, the lug, 53, the extrusion spring, 54, first draw-in groove, 55, right through-hole, 56, the kelly, 57, the arm-tie, 58, take-up spring, 59, second draw-in groove, 60, observation window, 61, reset spring, 62, the external screw thread.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, in an embodiment of the present invention, a quantitative injection device for a local anesthetic for surgery includes a bottom plate 1, an electric telescopic rod 2, a cantilever 5 and an injection mechanism, wherein the top wall of the bottom plate 1 is fixedly installed with the electric telescopic rod 2, the side wall of the electric telescopic rod 2 is fixedly installed with a driving motor 10, the driving motor 10 is fixedly installed on the top wall of the bottom plate 1, the driving motor 10 controls the electric telescopic rod 2 to perform a telescopic motion for adjusting the height of the device, meanwhile, the side wall of the electric telescopic rod 2 is fixedly installed with a fixing base 3, the side wall of the fixing base 3 is installed with a mounting plate 4 by a bolt, and the side wall of the mounting plate 4 is fixedly installed with the cantilever 5, wherein the end of the cantilever 5 is installed with the injection mechanism, the cantilever 5 is adopted to drive the injection mechanism to perform a motion, thereby realizing a multi-dimensional motion of the injection mechanism and satisfying injection requirements of different positions, the suitability is stronger, rotate on the diapire of mounting panel 4 simultaneously and install bracing piece 12, the other end fixed mounting of bracing piece 12 is on electric telescopic handle 2's outer wall, carry out the auxiliary stay to mounting panel 4 through bracing piece 12, increase the stability of injection mechanism, and install a plurality of universal wheels 11 on the diapire of bottom plate 1, universal wheel 11 chooses for use the wheel that has self-locking function, the universal wheel 11 through setting up has made things convenient for the removal of device, satisfy the use of different scenes.

Referring to fig. 2, it can be seen that: the injection mechanism comprises a fixed column 6, a driving column 7 and a needle cylinder 8, wherein the right side end of the fixed column 6 is provided with a fixed groove 14, the driving column 7 is slidably arranged in the fixed groove 14, meanwhile, a push rod 16 is slidably mounted on the left side wall of the fixing groove 14, the right side end of the push rod 16 is fixedly mounted on the side wall of the driving column 7, the driving column 7 is driven by the push rod 16 to move horizontally, and a driving groove 19 is opened in the driving rod 7, a driving mechanism is arranged in the driving groove 19, wherein the needle cylinder 8 is sleeved inside the driving groove 19, and the needle cylinder 8 is driven by the driving mechanism to carry out injection operation, compared with the traditional manual injection mode, the injection mode adopting the driving mechanism facilitates the medical care personnel to control the dosage of the liquid medicine, the dosage is more accurate, meanwhile, a plurality of mounting holes 15 are formed in the left end of the fixing column 6, and the fixing column 6 is mounted at the end of the cantilever 5 through the mounting holes 15 in a bolt mode.

Wherein, the driving mechanism comprises a fixed pipe 21, an extension pipe 22 and a push block 23, the fixed pipe 21 is fixedly arranged on the left side wall of the driving groove 19, the other end of the fixed pipe 21 is fixedly arranged inside a partition plate 24, the partition plate 24 is fixedly arranged on the side wall of the driving groove 19, meanwhile, one end of the fixed pipe 21, which is positioned on the partition plate 24, is fixedly connected with the extension pipe 22, the other end of the extension pipe 22 is fixedly arranged on the left side wall of the push block 23, an air outlet pipe 25 and an air inlet pipe 26 are symmetrically arranged on the upper side wall and the lower side wall of the fixed pipe 21, the other end of the air inlet pipe 26 is connected with a first one-way valve 28, the first one-way valve 28 is fixedly arranged on the bottom wall of the fixed column 6, the other end of the first one-way valve 28 is connected with the air pump 9 through a connecting air pipe 13, the air pump 9 is fixedly arranged on the top wall of the bottom plate 1, and the other end of the air outlet pipe 25 extends out of the side wall of the fixed column 6, the extension end of the air outlet pipe 25 is connected with the second one-way valve 29, the second one-way valve 29 is fixedly mounted on the top wall of the fixed column 6, the telescopic rod 36 is fixedly mounted inside the fixed pipe 21, the other end of the telescopic rod 36 is connected with the side wall of the push block 23, the push block 23 is supported and connected through the telescopic rod 36, a circle of return spring 61 is wound on the outer wall of the telescopic pipe 22, and two ends of the return spring 61 are fixedly mounted on the push block 23 and the side wall of the partition plate 24 respectively; in the working process, the air pump 9 is started to inject air into the fixed tube 21 through the first one-way valve 28, the second one-way valve 29 is closed at the moment, so that the push block 23 is driven to extend towards the right side to push the needle cylinder 8 to perform injection operation, after the injection is completed, the air pump 9 is stopped, the push block 23 resets under the action of the reset spring 61, at the moment, the air in the fixed tube 21 is discharged from the second one-way valve 29, and the reset of the push block 23 is realized.

Preferably, fixed mounting has a plurality of sliders 20 on the outer wall of actuating column 7, slider 20 slidable mounting is on the lateral wall of fixed slot 14, realize the slidable mounting to actuating column 7 through slider 20, drive and seted up internal thread 31 on the tip inner wall of groove 19 simultaneously, be used for threaded mounting syringe 8, and the inside fixed mounting of actuating groove 19 has stopper 27, the through-hole has been seted up to stopper 27's inside, the diameter of through-hole is the same with the diameter of ejector pad 23, shelter from the protection to actuating mechanism through stopper 27, avoid because operating personnel's maloperation, and cause actuating mechanism's damage.

Wherein, the bottom of the fixed column 6 is fixedly provided with a positioning mechanism, the positioning mechanism comprises a third one-way valve 33 and an inflator 35, the third one-way valve 33 is fixedly arranged on the left side wall of a vertical plate 32, the vertical plate 32 is fixedly arranged on the bottom wall of the fixed column 6, the right side wall of the vertical plate 32 is fixedly provided with the inflator 35, the air outlet of the inflator 35 is communicated with the third one-way valve 33, the air outlet end of the third one-way valve 33 is connected with a connecting air pipe 13 through a confluence pipe 34, the outer wall of the fixed column 6 is provided with an observation window 60, the observation window 60 is positioned right above the driving mechanism, before the driving process, an operator injects air into the fixed pipe 21 through the inflator 35 to drive the push block 23 to move horizontally, the push block 23 is contacted with the needle cylinder 8, so as to realize auxiliary positioning of the driving mechanism, and facilitate the driving work of the driving mechanism by the subsequent air pump 9, more beneficial to realizing quantitative injection.

Wherein, the interior of the syringe 8 is fixedly provided with a partition plate 37, the syringe is divided into an upper liquid storage cavity and a lower liquid storage cavity by the partition plate 37, the liquid storage cavities are slidably provided with pistons 34, the left side wall of the piston 34 is fixedly provided with a connecting rod 41, the other end of the connecting rod 41 extends out from the side wall of the syringe 8, the extending ends of the two connecting rods 41 are connected together by a push plate 42, the pistons 34 are driven by the push plate 42 to move horizontally, a pair of material guide grooves 47 are arranged in one side wall of the syringe 8 far away from the connecting rod 41, the right side ends of the two material guide grooves 47 are communicated together by a confluence groove 48, the other end of the confluence groove 48 is communicated with the syringe needle 18, the syringe needle 18 is fixedly arranged on the right side wall of the syringe 8, the upper and lower two side walls of the syringe 8 are symmetrically provided with two auxiliary cylinders 17, the interior of the auxiliary cylinders 17 is slidably provided with an extrusion rod 46, wherein one end of the auxiliary cylinders 17 far away from the extrusion rod 46 is fixedly provided with a liquid guide tube 39, the horizontal motion through the extrusion stem 46 realizes the advance of an auxiliary cylinder 17, go out the liquid, fixed mounting has fourth check valve 38 on the lateral wall that the cylinder 8 is close to an auxiliary cylinder 17 simultaneously, the output and the stock solution chamber intercommunication of fourth check valve 38 are in the same place, and the input fixed mounting of fourth check valve 38 has clamping mechanism, fourth check valve 38 links together through clamping mechanism and catheter 39, thereby with the leading-in stock solution intracavity of the inside liquid medicine of an auxiliary cylinder 17, realize the injection operation, make things convenient for medical personnel to inject multiple liquid medicine to patient, avoid puncturing patient's skin repeatedly many times among the injection process, reduce patient's painful sense.

Preferably, a lateral wall of the needle head 18 of the syringe 8 is fixedly provided with an external thread 62, the external thread 62 is matched with the internal thread 31, so that the syringe 8 is installed in the driving groove 19 in a threaded manner, the fixed installation of the syringe 8 is completed, meanwhile, the sealing rod 49 is installed inside the guide groove 47 in a sliding manner, the end part of the sealing rod 49 extends out of the lateral wall of the syringe 8, the sealing rod 49 is used for sealing and isolating the guide groove 47, and the auxiliary barrel 17 is prevented from injecting liquid into the liquid storage cavity, and the liquid medicine flows out of the guide groove 47.

Wherein, the clamping mechanism comprises a connecting cylinder 50, a convex block 52 and a clamping rod 56, the connecting cylinder 50 is fixedly arranged at the input end of the fourth one-way valve 38, wherein the inner diameter of the connecting cylinder 50 is the same as the outer diameter of the liquid guide tube 39, a left side groove 51 is arranged on the inner wall of the left side of the connecting cylinder 50, the convex block 52 is arranged in the left side groove 51 in a sliding way, the convex block 52 is communicated with the left side groove 51 through an extrusion spring 53, a first clamping groove 54 is symmetrically arranged on the left side wall of the liquid guide tube 39, the diameter of the first clamping groove 54 is the same as that of the convex block 52, a right through hole 55 is arranged on the inner wall of the right side of the connecting cylinder 50, the right through hole 55 and the left side groove 51 are on the same straight line, the clamping rod 56 is arranged in the right through hole 55 in a sliding way, a pulling plate 57 is fixedly arranged at the right end of the clamping rod 56, the pulling plate 57 is connected with the outer wall of the connecting cylinder 50 through a pair of tensioning springs 58, wherein, the right outer wall of the catheter 39 is symmetrically provided with a second clamping groove 59, and the diameters of the second clamping groove 59 and the clamping rod 56 are the same; in the installation process of the catheter 39, the bump 52 and the clamping rod 56 are respectively pressed in the first clamping groove 54 and the second clamping groove 59 through the extrusion spring 53 and the tensioning spring 58, so that the catheter 39 is installed, when the catheter 39 needs to be disassembled, the pull plate 57 is pulled outwards, the clamping rod 56 is pulled out from the second clamping groove 59, the catheter 39 can be pulled out from the connecting cylinder 50, and the disassembly is more convenient.

According to the above preferred embodiment provided by the present invention, the working principle of the present invention is as follows: firstly, the liquid medicine is pumped into the auxiliary cylinder 17, then the liquid guide tube 39 is tightly clamped at the input end of the fourth one-way valve 38, meanwhile, the needle cylinder 8 is arranged at the end part of the driving column 7 in a threaded manner, the liquid medicine to be injected is injected into the needle cylinder 8 from the auxiliary cylinder 17, then the end part of the push block 23 is contacted with the end part of the push plate 42 through the observation window 60 by pressing the inflator 35, finally, an operator moves the device to a proper position, pushes the push rod 16 to insert the needle head 18 into the body of a patient, finally, the air pump 9 is started to drive the driving mechanism to work, the liquid medicine in the needle cylinder 8 is injected into the body of the patient, after the medicine on one side is completed, the liquid medicine in the other auxiliary cylinder 17 is injected into the needle cylinder 8, the operations are repeated, the liquid medicine can be injected for multiple times at the same position, the damage caused by multiple times of puncture is greatly reduced, and the liquid medicine is ensured to act on the same position, the matching work effect between the medicines is better.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a medicine ration injection device for operation local anesthesia, includes bottom plate (1), electric telescopic handle (2), cantilever (5) and injection mechanism, its characterized in that: fixed mounting has electric telescopic handle (2) on the roof of bottom plate (1) to fixed mounting has driving motor (10) on the lateral wall of electric telescopic handle (2), driving motor (10) fixed mounting is on the roof of bottom plate (1), fixed mounting has fixing base (3) on the lateral wall of electric telescopic handle (2) simultaneously, mounting panel (4) are installed to the bolt on the lateral wall of fixing base (3), and fixed mounting has cantilever (5) on the lateral wall of mounting panel (4), wherein injection mechanism is installed to the tip of cantilever (5).

2. A quantitative injection device for surgical local anesthetic, according to claim 1, characterized in that: injection mechanism includes fixed column (6), drive column (7) and cylinder (8), wherein fixed slot (14) have been seted up to the right side end of fixed column (6), drive column (7) slidable mounting is in fixed slot (14), slidable mounting has push rod (16) on the left side wall of fixed slot (14) simultaneously, the right side end fixed mounting of push rod (16) is on the lateral wall of drive column (7), and drive slot (19) have been seted up to the inside of drive rod (7), be provided with actuating mechanism in drive slot (19), wherein cylinder (8) cover is in the inside of drive slot (19), a plurality of mounting holes (15) have been seted up to the left side tip of fixed column (6) simultaneously, fixed column (6) are through mounting hole (15) bolt mounting at the tip of cantilever (5).

3. A quantitative injection device for surgical local anesthetic, according to claim 2, characterized in that: the driving mechanism comprises a fixed pipe (21), an extension pipe (22) and a push block (23), the fixed pipe (21) is fixedly arranged on the left side wall of a driving groove (19), the other end of the fixed pipe (21) is fixedly arranged in a partition plate (24), the partition plate (24) is fixedly arranged on the side wall of the driving groove (19), meanwhile, one end of the fixed pipe (21) positioned on the partition plate (24) is fixedly connected with the extension pipe (22), the other end of the extension pipe (22) is fixedly arranged on the left side wall of the push block (23), an air outlet pipe (25) and an air inlet pipe (26) are symmetrically arranged on the upper side wall and the lower side wall of the fixed pipe (21), the other end of the air inlet pipe (26) is connected with a first one-way valve (28), the first one-way valve (28) is fixedly arranged on the bottom wall of a fixed column (6), wherein the other end of the first one-way valve (28) is connected with an air pump (9) through a connecting air pipe (13), air pump (9) fixed mounting is on the roof of bottom plate (1), and the other end of outlet duct (25) stretches out from the lateral wall of fixed column (6) simultaneously, and wherein the end that stretches out of outlet duct (25) links together with second check valve (29), and second check valve (29) fixed mounting is on the roof of fixed column (6).

4. A quantitative injection device for surgical local anesthetic, according to claim 3, characterized in that: the bottom fixed mounting of fixed column (6) has positioning mechanism, positioning mechanism includes third check valve (33) and inflater (35), wherein third check valve (33) fixed mounting is on the left side wall of riser (32), riser (32) fixed mounting is on the diapire of fixed column (6), and fixed mounting has inflater (35) on the right side wall of riser (32), the gas outlet and third check valve (33) of inflater (35) communicate together, the end of giving vent to anger of third check valve (33) passes through collecting pipe (34) and connects trachea (13) and link together simultaneously, observation window (60) have been seted up on the outer wall of fixed column (6) simultaneously, observation window (60) are located actuating mechanism directly over.

5. A quantitative injection device for surgical local anesthetic, according to claim 2, characterized in that: the syringe is characterized in that a partition plate (37) is fixedly arranged in the syringe (8), the syringe is divided into an upper liquid storage cavity and a lower liquid storage cavity through the partition plate (37), a piston (34) is arranged in the liquid storage cavities in a sliding manner, a connecting rod (41) is fixedly arranged on the left side wall of the piston (34), the other end of the connecting rod (41) extends out of the side wall of the syringe (8), the extending ends of the two connecting rods (41) are connected together through a push plate (42), a pair of guide grooves (47) are formed in one side wall, far away from the connecting rod (41), of the syringe (8), the right side ends of the two guide grooves (47) are communicated together through a confluence groove (48), the other end of the confluence groove (48) is communicated with the syringe needle (18), the syringe needle (18) is fixedly arranged on the side wall of the right end of the syringe (8), two auxiliary barrels (17) are symmetrically arranged on the upper side wall and the lower side wall of the syringe (8), and an extrusion rod (46) is arranged in the auxiliary barrels (17) in a sliding manner, wherein the one end fixed mounting that supplementary section of thick bamboo (17) kept away from pressure ram (46) has catheter (39), and fixed mounting has fourth check valve (38) on the lateral wall that syringe (8) are close to supplementary section of thick bamboo (17) simultaneously, and the output and the stock solution chamber of fourth check valve (38) communicate together to the input fixed mounting of fourth check valve (38) has chucking mechanism, and fourth check valve (38) link together through chucking mechanism and catheter (39).

6. The quantitative injection device for surgical local anesthetic according to claim 5, wherein: the clamping mechanism comprises a connecting cylinder (50), a convex block (52) and a clamping rod (56), the connecting cylinder (50) is fixedly installed at the input end of the fourth one-way valve (38), the inner diameter of the connecting cylinder (50) is the same as the outer diameter of the liquid guide pipe (39), a left side groove (51) is formed in the inner wall of the left side of the connecting cylinder (50), the convex block (52) is installed in the left side groove (51) in a sliding mode, the convex block (52) is communicated with the left side groove (51) through an extrusion spring (53), first clamping grooves (54) are symmetrically formed in the left side wall of the liquid guide pipe (39), the diameter of each first clamping groove (54) is the same as that of the convex block (52), a right through hole (55) is formed in the inner wall of the right side of the connecting cylinder (50), the right through hole (55) and the left side groove (51) are in the same straight line, and the clamping rod (56) is installed in the right through hole (55) in a sliding mode, the right end of the clamping rod (56) is fixedly provided with a pulling plate (57), the pulling plate (57) is connected with the outer wall of the connecting cylinder (50) through a pair of tensioning springs (58), wherein the outer wall of the right side of the liquid guide pipe (39) is symmetrically provided with a second clamping groove (59), and the diameters of the second clamping groove (59) and the clamping rod (56) are the same.

7. A quantitative injection device for surgical local anesthetic, according to claim 2, characterized in that: the inside fixed mounting of fixed pipe (21) has telescopic link (36), and the other end of telescopic link (36) links together with the lateral wall of ejector pad (23), and the winding has round reset spring (61) on the outer wall of flexible pipe (22) simultaneously, and the both ends of reset spring (61) are fixed mounting respectively on the lateral wall of ejector pad (23) and baffle (24).

8. The quantitative injection device for surgical local anesthetic according to claim 5, wherein: fixed mounting has a plurality of sliders (20) on the outer wall of drive post (7), slider (20) slidable mounting has seted up internal thread (31) on the tip inner wall of drive groove (19) simultaneously on the lateral wall of fixed slot (14), is used for thread mounting syringe (8) to the inside fixed mounting of drive groove (19) has stopper (27), and the through-hole has been seted up to the inside of stopper (27), and the diameter of through-hole diameter is the same with the diameter of ejector pad (23).

9. A quantitative injection device for surgical local anesthetic according to claim 8, characterized in that: a side wall of the needle cylinder (8) far away from the needle head (18) is fixedly provided with an external thread (62), the external thread (62) is matched with the internal thread (31), a sealing rod (49) is arranged inside the guide groove (47) in a sliding mode, and the end portion of the sealing rod (49) extends out of the side wall of the needle cylinder (8).

10. A quantitative injection device for surgical local anesthetic, according to claim 1, characterized in that: the utility model discloses a wheel, including mounting panel (4), the diapire of mounting panel (4) is last to rotate and to be installed bracing piece (12), and the other end fixed mounting of bracing piece (12) is on the outer wall of electric telescopic handle (2) to install a plurality of universal wheels (11) on the diapire of bottom plate (1), universal wheel (11) select for use the wheel that has self-locking function.