CN113180790A

CN113180790A - Nerve blocking drug injection system capable of adjusting injection resistance

Info

Publication number: CN113180790A
Application number: CN202110499729.8A
Authority: CN
Inventors: 桂波; 朱琳佳; 倪燕; 方印; 龚婵娟; 陈紫璇; 丁夏皓; 陈大鹏
Original assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Current assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-07-30

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a nerve blocking drug injection system capable of adjusting injection resistance, which comprises a workbench, an injection device, a host and a pedal device, wherein the injection device and the host are arranged on the workbench; the injection device comprises a hollow fixed box, a positioning assembly for fixing the injector and a driving assembly for propelling the injection, wherein the positioning assembly comprises a pressure sensor for monitoring the resistance of the injection; the host is used for receiving and displaying the bolus pressure information; the pedal device is connected with the driving assembly and is used for controlling the mode and the speed of the bolus injection. Overcomes the defects of the prior art, displays the resistance of the injection process in real time, helps a single person to operate, and improves the safety of injection of the nerve block medicament.

Description

Nerve blocking drug injection system capable of adjusting injection resistance

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a nerve blocking drug injection system capable of adjusting injection resistance.

Background

In recent years, nerve block anesthesia under ultrasound guidance has been widely used in surgical operations. The nerve block under ultrasonic guidance needs an operator to place a probe on the surface of the skin of a patient with one hand, fix the probe after scanning a section where a target nerve is located, hold a needle with the other hand to advance the needle point to the side of the target nerve under ultrasonic guidance, and inject local anesthetic liquid to wrap the nerve to achieve the block effect of local analgesia and the like.

At present, the operation is clinically completed by two persons, after an operator places the needle tip beside a target nerve, the operator needs to push the injector to administer the medicine by an assistant, the speed and the resistance of the injected medicine are both felt by the assistant, the operator cannot directly feel the injection pressure and master the injection speed, and certain potential safety hazards exist.

At present, a device which can be operated by a single person, can display and can adjust the resistance of the medicine injection is clinically lacked.

Disclosure of Invention

The invention aims to provide a nerve blocking drug injection system capable of adjusting injection resistance, which overcomes the defects of the prior art, displays the resistance of the injection process in real time, helps a single person to operate and improves the safety of injecting the nerve blocking drug.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a nerve blocking drug injection system capable of adjusting injection resistance comprises a workbench, an injection device, a host and a pedal device, wherein the injection device and the host are arranged on the workbench;

the injection device comprises a hollow fixed box, a positioning assembly for fixing the injector and a driving assembly for propelling the injection, wherein the positioning assembly comprises a pressure sensor for monitoring the resistance of the injection;

the host is used for receiving and displaying the bolus pressure information;

the pedal device is connected with the driving assembly and is used for controlling the mode and the speed of the bolus injection.

Further, the drive assembly includes install at the propulsion motor of fixed incasement one end, connect the screw rod at the propulsion motor output, the screw rod outside is provided with the movable block, and threaded connection between movable block and the screw rod, the up end of movable block has set firmly the connecting piece, long banding shifting chute is worn to be equipped with on the top of fixed case, the connecting piece passes through the shifting chute and extends to the top of shifting chute, locating component sets firmly on the top of connecting piece.

Further, the locating component is including setting firmly propulsion piece and the setting element on the connecting piece, the recess that holds the propeller end is seted up to the one end that propulsion piece is close to propulsion piece, and installs pressure sensor in the recess, the setting element has open-ended cyclic annular buckle for the top, the one end up end that propulsion motor was kept away from to the fixed box has set firmly the mounting, the mounting is used for the one end of butt syringe, and wears to be equipped with the through-hole that is used for the injection syringe to pass through on the mounting.

Furthermore, the pedal device comprises an inclined pedal plate and a control plate which is horizontally arranged, a plurality of adjusting buttons are embedded on the control plate, one end of the pedal device is connected with a control line, and the other end of the control line is connected with the driving assembly.

Furthermore, the host computer includes that the display screen, the control switch and the alarm component that control system opened and close that inlay on the host computer front end face are established.

Furthermore, the alarm assembly comprises a voice device embedded in the host and an indicator light arranged on the surface of the host.

Further, the below of workstation has set firmly the support column, and the bottom of support column sets firmly the horizontally base, install on four angles of the lower terminal surface of base and remove the wheel.

Furthermore, the upper end face of the base is fixedly provided with a storage box with an opening at the top.

Compared with the prior art, the invention has the following beneficial effects:

the nerve blocking drug injection system capable of adjusting the injection resistance provided by the invention adopts a dynamic pressure sensing technology to monitor the resistance in the injection process, so that medical personnel can conveniently master the injection speed and the injection pressure; through the mode of electronic injection, single medical personnel just can accomplish the injection of medicine, and it is more convenient to operate.

Drawings

Fig. 1 is a schematic structural diagram of a nerve-blocking drug injection system capable of adjusting injection resistance.

Fig. 2 is a schematic structural diagram of a bolus device in a nerve block drug bolus system capable of adjusting a bolus resistance.

Fig. 3 is a schematic structural diagram of a propelling part in a nerve block drug injection system capable of adjusting injection resistance.

Fig. 4 is a schematic structural diagram of a positioning member in a nerve-blocking drug injection system capable of adjusting injection resistance.

Fig. 5 is a schematic structural diagram of a host in a nerve block drug injection system capable of adjusting injection resistance.

Fig. 6 is a schematic structural diagram of a pedal device in a nerve block drug injection system capable of adjusting injection resistance.

In the figure: 1. a work table; 11. a support pillar; 12. a base; 13. a moving wheel; 14. a storage box; 2. a bolus injection device; 21. a fixed box; 22. a fixing member; 23. a propulsion motor; 24. a connecting member; 25. a moving block; 26. a screw; 27. a pusher member; 271. a pressure sensor; 28. a positioning member; 29. a moving groove; 3. a foot pedal device; 31. a control line; 32. a foot pedal; 33. a control panel; 34. an adjustment button; 4. a host; 41. a display screen; 42. a control button; 43. an indicator light; 44. and a voice device.

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.

As shown in fig. 1-6, the nerve block drug injection system capable of adjusting injection resistance according to the present invention comprises a workbench 1, an injection device 2, a main unit 4 and a pedal device 3, wherein the injection device 2 and the main unit 4 are mounted on the workbench 1;

the injection device 2 comprises a hollow fixed box 21, a positioning component for fixing the injector and a driving component for pushing injection, wherein the positioning component comprises a pressure sensor 271 for monitoring the resistance of injection, and the pressure sensor 271 adopts a dynamic pressure sensing technology (DSP);

the host 4 is used for receiving and displaying the information of the pressure of the bolus injection, and a singlechip for receiving and processing the information is arranged in the host 4;

the pedal device 3 is connected with the driving component and is used for controlling the mode and the speed of the bolus injection.

The driving assembly comprises a propelling motor 23 arranged at one end in the fixed box 21 and a screw 26 connected to the output end of the propelling motor 23, a moving block 25 is arranged on the outer side of the screw 26, the moving block 25 is in threaded connection with the screw 26, a connecting piece 24 is fixedly arranged on the upper end face of the moving block 25, a long-strip-shaped moving groove 29 is arranged at the top end of the fixed box 21 in a penetrating mode, the connecting piece 24 passes through the moving groove 29 and extends to the upper portion of the moving groove 29, and the positioning assembly is fixedly arranged at the top end of the connecting piece 24.

The positioning assembly comprises a pushing piece 27 and a positioning piece 28 which are fixedly arranged on the connecting piece 24, one end of the pushing piece 27 close to the pushing piece 27 is provided with a groove for accommodating the end head of the pushing piece, a pressure sensor 271 is arranged in the groove, the positioning piece 28 is an annular buckle with an opening at the top end, the upper end face of one end of the fixed box 21 far away from the pushing motor 23 is fixedly provided with a fixing piece 22, the fixing piece 22 is used for abutting against one end of the injector, and the fixing piece 22 is provided with a through hole for the injection tube to pass through; the positioning element 28 and the pushing element 27 are arranged to facilitate the retraction, and the piston can be retracted by the positioning element 28.

For convenient adjustment, the pedal device 3 comprises an inclined pedal 32 and a control panel 33 arranged horizontally, a plurality of adjusting buttons 34 are embedded on the control panel 33, one end of the pedal device 3 is connected with a control wire 31, and the other end of the control wire 31 is connected with a driving assembly; the bolus injection system has two modes of constant-speed bolus injection and rapid bolus injection, mode switching is realized through one adjusting button 34, and other adjusting buttons 34 are used for adjusting the bolus injection rate and mainly comprise three rates of high, medium and low.

The host 4 comprises a display screen 41 embedded on the front end face of the host 4, a control switch for controlling the on-off of the system and an alarm component.

In order to enhance the alarm effect, the alarm assembly comprises a voice device 44 embedded in the host machine 4 and an indicator lamp 43 arranged on the surface of the host machine 4; when the bolus resistance is abnormal, the host 4 controls the voice device 44 to play the alarm voice and the indicator lamp 43 starts to flash at the same time, so as to prompt the medical staff.

In order to move conveniently, a supporting column 11 is fixedly arranged below the workbench 1, a horizontal base 12 is fixedly arranged at the bottom end of the supporting column 11, and four corners of the lower end surface of the base 12 are provided with moving wheels 13.

In order to facilitate storage, the upper end surface of the base 12 is fixedly provided with a storage box 14 with an open top, and the space in the storage box 14 is used for placing the pedal device 3 and the control wire 31.

In conclusion, the nerve block drug injection system capable of adjusting injection resistance is used, firstly, the device is moved to the side of an operating sickbed, and the device is checked and reset; one end of the injector is abutted against the fixed part 22 and is connected with the extension tube through the through hole of the fixed part 22, the piston at the other end of the injector is abutted against the pushing part 27, the positioning part 28 is clamped at the outer side of the piston rod, and the positioning part 28 and the recommendation part are respectively arranged at two sides of the piston head; after the injector is fixed, the system is started through a control switch on the host machine 4, two modes of constant-speed injection and rapid injection are switched through an adjusting button 34 on the pedal device 3, the injection speed is controlled, the patient is injected with medicine after rapid exhaust, the pressure sensor 271 monitors the injection resistance signal in real time in the injection process, and the signal is transmitted back to the host machine 4 and displayed on the display screen 41; when the resistance value appears unusually, the warning subassembly on the host computer 4 starts, and the suggestion medical personnel abnormal conditions appears to automatic shutdown and self-checking equipment supplies medical personnel to look over the condition.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A nerve blocking drug injection system capable of adjusting injection resistance is characterized in that: the device comprises a workbench (1), a pushing injection device (2), a host (4) and a pedal device (3), wherein the pushing injection device (2) and the host (4) are arranged on the workbench (1);

the injection device (2) comprises a hollow fixing box (21), a positioning assembly for fixing the injector and a driving assembly for pushing injection, wherein the positioning assembly comprises a pressure sensor (271) for monitoring the resistance of the injection;

the host (4) is used for receiving and displaying the bolus pressure information;

the pedal device (3) is connected with the driving component and is used for controlling the mode and the speed of the bolus injection.

2. The nerve block drug bolus system of claim 1 having an adjustable bolus resistance, wherein: the drive assembly is including installing propulsion motor (23), the screw rod (26) of connection at propulsion motor (23) output of one end in fixed case (21), screw rod (26) outside is provided with movable block (25), and threaded connection between movable block (25) and screw rod (26), the up end of movable block (25) has set firmly connecting piece (24), rectangular form shifting chute (29) are worn to be equipped with on the top of fixed case (21), connecting piece (24) just extend to the top of shifting chute (29) through shifting chute (29), locating component sets firmly the top at connecting piece (24).

3. The nerve block drug bolus system of claim 2 having an adjustable bolus resistance, wherein: the locating component is including setting firmly propulsion piece (27) and setting element (28) on connecting piece (24), the recess that holds the propeller end is seted up to the one end that propulsion piece (27) are close to propulsion piece (27), and installs pressure sensor (271) in the recess, setting element (28) have the annular buckle of open-ended for the top, fixed case (21) keep away from one of propulsion motor (23) and serve the up end and set firmly mounting (22), mounting (22) are used for the one end of butt syringe, and wear to be equipped with the through-hole that is used for the injection syringe to pass through on mounting (22).

4. The nerve block drug bolus system of claim 1 having an adjustable bolus resistance, wherein: the pedal device (3) comprises an inclined pedal plate (32) and a control plate (33) which is horizontally arranged, a plurality of adjusting buttons (34) are embedded on the control plate (33), one end of the pedal device (3) is connected with a control line (31), and the other end of the control line (31) is connected with a driving assembly.

5. The nerve block drug bolus system of any one of claims 1-4 having an adjustable bolus resistance, wherein: the host (4) comprises a display screen (41) embedded on the front end face of the host (4), a control switch for controlling the system to be opened and closed and an alarm component.

6. The nerve block drug bolus system of claim 5 having an adjustable bolus resistance, wherein: the alarm assembly comprises a voice device (44) embedded in the host (4) and an indicator light (43) arranged on the surface of the host (4).

7. The nerve block drug bolus system of claim 1 having an adjustable bolus resistance, wherein: the below of workstation (1) has set firmly support column (11), and the bottom of support column (11) has set firmly horizontally base (12), install on four angles of the lower terminal surface of base (12) and remove wheel (13).

8. The nerve block drug bolus system of claim 7 having an adjustable bolus resistance, wherein: the upper end face of the base (12) is fixedly provided with a containing box (14) with an opening at the top.