CN217488793U

CN217488793U - Nerve block anesthesia injection device

Info

Publication number: CN217488793U
Application number: CN202221080495.XU
Authority: CN
Inventors: 苏莽
Original assignee: Affiliated Hospital Of Sichuan Nursing Vocational College
Current assignee: Affiliated Hospital Of Sichuan Nursing Vocational College
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-09-27
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a nerve block anesthesia injection device, which belongs to the technical field of medical instruments, and comprises a needle cylinder, wherein the inside of the needle cylinder is slidably connected with a piston, the piston is connected with a push rod, the end part of the push rod is connected with a pressing handle, the front end of the needle cylinder is connected with a needle head, the outside of the needle cylinder is sleeved with a movable sleeve, the outer wall of the needle cylinder is provided with a driving component for driving the movable sleeve, the movable sleeve is provided with a clamping mechanism for fixing the needle head, the clamping mechanism comprises two connecting plates fixedly connected with the two sides of the front end of the movable sleeve, the connecting plates are all slidably connected with a slide block, the front ends of the connecting plates are all slidably connected with movable rods, one ends of the movable rods are all hinged with linkage rods, and the other ends of the linkage rods are respectively hinged on the corresponding slide blocks; the needle head of the medicine injection device is convenient to install, the needle head after installation cannot fall off, the needle head is convenient to detach subsequently, non-contact installation is adopted, the needle head is prevented from hurting people, and safety is improved.

Description

Nerve block anesthesia injection device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a nerve block anesthesia injection device.

Background

The intravenous anesthesia and lumbar anesthesia are widely applied in clinical operations, the intravenous anesthesia is to inject anesthetic drugs from the vein passage of the arm or the instep, and the anesthetic drugs act on the central nervous system through the circulatory system, so that the anesthetic effect is generated, and a patient is unconscious of pain and in a deep sleep state. Lumbar anesthesia, also called intraspinal anesthesia, is divided into subarachnoid or epidural anesthesia, and is characterized in that local anesthetic is injected into subarachnoid or epidural space of vertebral canal to act on spinal nerve root to produce anesthesia, so that the lower part of body of a patient is numb and unconscious, but the consciousness is clear.

At present neural retardant treatment process need carry out anesthesia injection through the syringe, but the syringe need install the syringe needle on the cylinder when using, all at present through the manual installation syringe needle of medical personnel, at this in-process, the syringe needle twists the dynamics and is difficult to the accuse, and the dynamics undersize, then the syringe needle easily drops, and the dynamics is too big, and the later stage of being not convenient for again pulls out the syringe needle, has certain inconvenience in the actual operation in-process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of nerve block anesthesia injection device has solved present syringe and has all installed the syringe needle through medical personnel's manual, and at this in-process, the syringe needle twists the dynamics and is difficult to the accuse, and the dynamics undersize, then the syringe needle easily drops, and the dynamics is too big, and the later stage of being not convenient for pulls out the syringe needle again, has the problem of certain inconvenience in the actual operation in-process.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a nerve block anesthesia injection device, includes the cylinder, the inside sliding connection of cylinder has the piston, be connected with the push rod on the piston, the end connection of push rod has the pressure handle, the front end of cylinder is connected with the syringe needle, the outside cover of cylinder is equipped with the movable sleeve, be equipped with the drive assembly who is used for driving the movable sleeve on the outer wall of cylinder, be equipped with the fixture who is used for fixed syringe needle on the movable sleeve.

Adopt above-mentioned scheme, when the installation syringe needle, fixture can realize fixed to the centre gripping of syringe needle, rethread drive assembly drive movable sleeve drives fixture activity, can realize the installation of syringe needle, realize contactless installation, the syringe needle hinders the people when preventing to install, the security is improved, the syringe needle after the installation passes through fixture fixed simultaneously, make the syringe needle installation back can not take place the obscission, and whole injection device easy operation, high durability and convenient use, compare traditional manual operation, this syringe needle installation is more safe and high-efficient with the dismantlement mode.

As preferred, fixture includes two connecting plates of fixed connection in the movable sleeve front end both sides, equal sliding connection has the slider on the connecting plate, the equal sliding connection in front end of connecting plate has the movable rod, the one end of movable rod all articulates there is the gangbar, the other end of gangbar articulates respectively on corresponding slider, the other end of movable rod all is connected with splint, all overlap on the movable rod and be equipped with the reset spring of connection between splint and connecting plate, the tail cap outside of syringe needle is equipped with annular draw-in groove, two the equal card of splint is gone into in the draw-in groove, threaded connection has the thread bush on the movable sleeve, the front end of thread bush is fixed with two ejector pins, two be connected with the go-between on the slider, just the one end of ejector pin is all supported on the go-between.

By adopting the proposal, when the needle head is installed, the thread bushing is firstly rotated to enable the two ejector rods to prop against the connecting ring to move downwards, the two slide blocks on the connecting ring slide downwards on the connecting plate simultaneously, and the two movable rods horizontally move under the action of the linkage rod, so that the two clamping plates are in an open state, the tail cap of the needle head is placed between the two clamping plates and the thread sleeve is rotated reversely, the two clamping plates are automatically reset due to the acting force of the two reset springs and are clamped in the clamping grooves to realize the fixation of the needle head, then the driving component drives the movable sleeve to move upwards, so that the needle head is arranged on the needle cylinder through the upward movement of the two connecting plates, when the needle head is disassembled, the driving component drives the movable sleeve to move to pull out the clamped needle head on the needle cylinder, then the threaded sleeve is rotated to enable the two ejector rods to prop against the connecting ring to move downwards, and at the moment, the two clamping plates are slowly opened to loosen the needle head to finish the disassembly.

As preferred, drive assembly is including fixing two fixed blocks on the cylinder outer wall, two it is connected with the threaded rod to rotate between the fixed block, the one end of threaded rod is connected with the knob, threaded connection has the movable block on the threaded rod, the movable block top is connected with the connecting rod, the other end of connecting rod is connected with the connecting block, just the connecting block is fixed on the movable sleeve.

By adopting the scheme, the threaded rod is driven to rotate by rotating the knob, the movable block on the threaded rod moves forwards or backwards, and the movable sleeve is driven to move back and forth on the needle cylinder synchronously through the connecting rod and the connecting block, so that the needle head is mounted and dismounted, the needle head is mounted in a non-contact manner, and the safety and the convenience are improved.

Preferably, the outer wall of the movable sleeve is provided with a threaded portion, and the threaded sleeve is in threaded connection with the threaded portion.

By adopting the scheme, the thread part is arranged on the outer wall of the movable sleeve, so that the thread sleeve can be rotated to enable the thread sleeve to move up and down stably, the ejector rod can act on the connecting ring stably, and the needle head can be loosened.

Preferably, a guide rod is connected to one side wall of the connecting block, and the movable block is slidably connected to the guide rod.

By adopting the scheme, when the rotary knob drives the connecting block to move on the threaded rod, the connecting block also slides on the guide rod, the connecting block is guided by the guide rod, and the stable front-back movement of the connecting block is ensured.

Preferably, the side wall of one side of the connecting plate is provided with sliding grooves, and the sliding blocks are respectively connected in the corresponding sliding grooves in a sliding mode.

By adopting the scheme, when the connecting ring drives the sliding block to move, the sliding block slides in the sliding groove, and the connecting ring can stably move up and down on the two connecting plates under the guiding action of the sliding groove on the sliding block.

The utility model has the advantages that:

this anesthesia injection device can realize fixed to the centre gripping of syringe needle through rotating the thread bush, the rethread rotates the knob and can be with the quick installation on the cylinder of syringe needle, make the contactless installation of syringe needle installation operation realization, the syringe needle injures people when preventing to install, improve the security, the syringe needle after the installation simultaneously is fixed through two splint, make the syringe needle installation back can not take place the obscission, and whole injection device easy operation, high durability and convenient use, compare traditional manual operation, this syringe needle installation is more safe and convenient with the dismantlement mode.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inner structure of the syringe of the present invention;

FIG. 3 is a schematic structural view of the clamping mechanism of the present invention;

fig. 4 is a top view of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 4 according to the present invention.

In the figure: 1. a needle cylinder; 2. a needle head; 3. a push rod; 4. pressing the handle; 5. a piston; 6. a movable sleeve; 7. a threaded portion; 8. a clamping mechanism; 81. a threaded sleeve; 82. a top rod; 83. a connecting plate; 84. a movable rod; 85. a splint; 86. a return spring; 87. a linkage rod; 88. a card slot; 89. a slider; 810. a connecting ring; 9. a drive assembly; 91. a fixed block; 92. a threaded rod; 93. a knob; 94. a movable block; 95. a connecting rod; 96. connecting blocks; 10. a guide bar; 11. a chute.

Detailed Description

Examples

Referring to fig. 1-5, the utility model provides a nerve block anesthesia injection device, including cylinder 1, the inside sliding connection of cylinder 1 has piston 5, be connected with push rod 3 on the piston 5, the end connection of push rod 3 has pressure handle 4, the front end of cylinder 1 is connected with syringe needle 2, the outside cover of cylinder 1 is equipped with movable sleeve 6, be equipped with the drive assembly 9 that is used for driving movable sleeve 6 on the outer wall of cylinder 1, be equipped with the fixture 8 that is used for fixed syringe needle 2 on the movable sleeve 6.

When installation syringe needle 2, fixture 8 can realize fixed to the centre gripping of syringe needle 2, rethread drive assembly 9 drive movable sleeve 6 drives fixture 8 activity, can realize the installation of syringe needle 2, realize contactless installation, syringe needle 2 hurts the people when preventing to install, the security is improved, syringe needle 2 after the installation simultaneously passes through fixture 8 fixedly, make the phenomenon of droing can not take place after 2 installation of syringe needle, and whole injection device easy operation, high durability and convenient use, compare traditional manual operation, this syringe needle 2 installation and dismantlement mode are more safe and high-efficient.

The clamping mechanism 8 comprises two connecting plates 83 fixedly connected with the two sides of the front end of the movable sleeve 6, the connecting plates 83 are all connected with sliding blocks 89 in a sliding way, the front ends of the connecting plates 83 are all connected with movable rods 84 in a sliding way, one end of each movable rod 84 is hinged with a linkage rod 87, the other end of each linkage rod 87 is hinged with a corresponding sliding block 89, the other end of the movable rod 84 is connected with a clamping plate 85, the movable rod 84 is sleeved with a return spring 86 connected between the clamping plate 85 and the connecting plate 83, an annular clamping groove 88 is arranged on the outer side of the tail cap of the needle head 2, the two clamping plates 85 are clamped in the clamping groove 88, the movable sleeve 6 is in threaded connection with a threaded sleeve 81, two ejector rods 82 are fixed to the front end of the threaded sleeve 81, two sliding blocks 89 are connected with connecting rings 810, and one ends of the ejector rods 82 are abutted to the connecting rings 810.

In this embodiment, when the needle 2 is installed, firstly the threaded sleeve 81 is rotated to make the two push rods 82 push against the connecting ring 810 to move downwards, the two sliding blocks 89 on the connecting ring 810 slide downwards on the connecting plates 83 at the same time, and the two movable rods 84 horizontally move under the action of the linkage rod 87, so that the two clamping plates 85 are in an open state, at this time, the tail cap of the needle 2 is placed between the two clamping plates 85 and the threaded sleeve 81 is rotated reversely, the two clamping plates 85 automatically reset due to the acting force of the two reset springs 86, the two clamping plates 85 are clamped into the clamping groove 88 to fix the needle 2, then the movable sleeve 6 is driven to move upwards by the driving assembly 9, so that the needle 2 is installed on the needle cylinder 1 by the upward movement of the two connecting plates 83, when the needle 2 is disassembled, the driving assembly 9 drives the movable sleeve 6 to move to pull the needle 2 clamped on the needle cylinder 1, then the threaded sleeve 81 is rotated to make the two push rods 82 push against the connecting ring 810 to move downwards, the jaws 85 are then opened slowly to release the needle 2 for removal.

Drive assembly 9 is including fixing two fixed blocks 91 on 1 outer wall of cylinder, two it is connected with threaded rod 92 to rotate between the fixed block 91, threaded rod 92's one end is connected with knob 93, threaded connection has movable block 94 on the threaded rod 92, movable block 94 top is connected with connecting rod 95, connecting rod 95's the other end is connected with connecting block 96, just connecting block 96 is fixed on movable sleeve 6.

In this embodiment, drive threaded rod 92 through rotating knob 93 and rotate, the movable block 94 on the threaded rod 92 is forward or backward motion to drive the uide bushing 6 through connecting rod 95 and connecting block 96 synchronous fore-and-aft motion on cylinder 1, accomplish the installation and the dismantlement operation of syringe needle 2, realize that syringe needle 2 contactless installs, improve security and convenience.

The outer wall of the movable sleeve 6 is provided with a thread part 7, and the thread sleeve 81 is in threaded connection with the thread part 7.

In this embodiment, the outer wall of the movable sleeve 6 is provided with a threaded portion 7, so that the threaded sleeve 81 can be rotated to move up and down stably, the push rod 82 can act on the connection ring 810 stably, and the needle 2 can be loosened.

A guide rod 10 is connected to one side wall of the connecting block 96, and the movable block 94 is slidably connected to the guide rod 10.

In this embodiment, when the rotary knob 93 is rotated to drive the movable block 94 to move on the threaded rod 92, the movable block 94 also slides on the guide rod 10, and the movable block 94 is guided by the guide rod 10, thereby ensuring stable forward and backward movement of the movable block 94.

All seted up spout 11 on one side lateral wall of connecting plate 83, just slider 89 is sliding connection respectively in corresponding spout 11.

In this embodiment, when the connecting ring 810 drives the slider 89 to move, the slider 89 slides in the sliding groove 11, and the connecting ring 810 can stably move up and down on the two connecting plates 83 by guiding the slider 89 through the sliding groove 11.

The working principle is as follows: when the injection device is used, firstly, the needle head 2 needs to be installed, when the injection device is installed, the threaded sleeve 81 is firstly rotated to enable the two ejector rods 82 to prop against the connecting ring 810 to move downwards, the two sliding blocks 89 on the connecting ring 810 slide downwards on the connecting plate 83 at the same time, the two movable rods 84 horizontally move under the action of the linkage rod 87, then the two clamping plates 85 are in an open state, at the moment, the tail cap of the needle head 2 is placed between the two clamping plates 85 and the threaded sleeve 81 is reversely rotated, the two clamping plates 85 automatically reset under the action of the two reset springs 86, the two clamping plates 85 are clamped into the clamping grooves 88 to realize the fixation of the needle head 2, then the threaded rod 92 is driven to rotate by the rotating knob 93, the movable block 94 on the threaded rod 92 moves backwards, the movable sleeve 6 is synchronously driven to move backwards on the needle cylinder 1 through the connecting rod 95 and the connecting block 96, so that the two connecting plates 83 move upwards to install the needle head 2 on the needle cylinder 1, the phenomenon that the needle 2 after installation can not take place to drop, when dismantling needle 2, the activity cover 6 is moved forward on the cylinder 1 to the contra-rotation knob 93, and the needle 2 of centre gripping on the activity cover 6 is pulled out the cylinder 1, then rotates thread bush 81 and makes two ejector pins 82 withstand go-between 810 and move down, and two splint 85 slowly open at this moment and loosen needle 2 and accomplish the dismantlement.

Claims

1. The utility model provides a nerve block anesthesia injection device, a serial communication port, including cylinder (1), the inside sliding connection of cylinder (1) has piston (5), be connected with push rod (3) on piston (5), the end connection of push rod (3) has pressure handle (4), the front end of cylinder (1) is connected with syringe needle (2), the outside cover of cylinder (1) is equipped with movable sleeve (6), be equipped with drive assembly (9) that are used for driving movable sleeve (6) on the outer wall of cylinder (1), be equipped with fixture (8) that are used for fixed syringe needle (2) on movable sleeve (6).

2. The nerve block anesthesia injection device according to claim 1, characterized in that the clamping mechanism (8) comprises two connecting plates (83) fixedly connected to both sides of the front end of the movable sleeve (6), each connecting plate (83) is slidably connected with a slider (89), the front ends of the connecting plates (83) are slidably connected with a movable rod (84), one end of each movable rod (84) is hinged with a linkage rod (87), the other end of each linkage rod (87) is hinged to the corresponding slider (89), the other end of each movable rod (84) is connected with a clamp plate (85), each movable rod (84) is sleeved with a return spring (86) connected between the clamp plate (85) and the corresponding connecting plate (83), an annular clamping groove (88) is arranged outside the tail cap of the needle (2), and the two clamp plates (85) are clamped in the clamping groove (88), the movable sleeve (6) is in threaded connection with a threaded sleeve (81), two ejector rods (82) are fixed to the front end of the threaded sleeve (81), the two sliding blocks (89) are connected with connecting rings (810), and one ends of the ejector rods (82) are abutted to the connecting rings (810).

3. The nerve block anesthesia injection device according to claim 1, wherein the driving assembly (9) comprises two fixing blocks (91) fixed on the outer wall of the needle cylinder (1), a threaded rod (92) is rotatably connected between the two fixing blocks (91), one end of the threaded rod (92) is connected with a knob (93), a movable block (94) is connected with the threaded rod (92) in a threaded manner, a connecting rod (95) is connected to the top of the movable block (94), the other end of the connecting rod (95) is connected with a connecting block (96), and the connecting block (96) is fixed on the movable sleeve (6).

4. The nerve block anesthesia injection device according to claim 2, wherein the outer wall of the movable sleeve (6) is provided with a threaded portion (7), and the threaded sleeve (81) is screwed on the threaded portion (7).

5. The nerve block anesthesia injection device of claim 3, wherein a guide rod (10) is connected to one side wall of the connecting block (96), and the movable block (94) is slidably connected to the guide rod (10).

6. The nerve block anesthesia medicine injection device according to claim 2, wherein the side wall of one side of the connecting plate (83) is provided with a sliding groove (11), and the sliding blocks (89) are respectively connected in the corresponding sliding grooves (11) in a sliding manner.