Ultrasonic-guided nerve block puncture stent for anesthesia
By designing an ultrasonic guided nerve block puncture bracket with a three-layer transmission mechanism and clamping assembly, the problems of inaccurate adjustment of the ultrasonic probe angle and low fixation stability in the prior art are solved, and higher puncture accuracy and operational safety are achieved.
Patent Information
- Application Number
- CN202510212262.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-05-23
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing ultrasonic probe fixing devices have problems such as insufficient adjustment angle, inaccurate adjustment, and low fixation stability when adjusting the probe angle, which leads to difficult operation and high risk of misoperation during the operation.
An ultrasonic-guided nerve block puncture bracket is designed. By setting an adjustment component at the front end of the support component, a three-layer transmission mechanism and a transmission motor are used to achieve circumferential rotation, horizontal angle adjustment and vertical angle adjustment, and the clamping component ensures stable fixation of the probe.
It improves the flexibility and accuracy of the direction and position adjustment of the puncture needle, reduces the difficulty and fatigue of the doctor, reduces the risk of misoperation, and ensures the stability of the probe during the adjustment process.
Smart Images
Figure CN120022062A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of postpartum medical devices, and in particular relates to an ultrasound-guided nerve block puncture stent for anesthesia. Background Art
[0002] Nerve block technology is an effective pain management method, especially suitable for local anesthesia during surgery; traditional nerve block technology mainly relies on the doctor's experience and anatomical knowledge, locating the target nerve through surface landmarks and palpation, and then injecting local anesthetics. With the rapid development of ultrasound technology, ultrasound-guided nerve block technology has gradually become an innovative technology in the field of anesthesia. Ultrasound imaging technology can provide real-time, high-resolution anatomical structure images, allowing doctors to intuitively see the target nerves and their surrounding structures, thereby greatly improving the accuracy of puncture. In addition, ultrasound guidance can also help doctors evaluate the effectiveness of nerve block and adjust the dosage and position of anesthetic drugs in a timely manner; however, in actual operation, doctors still need to hold the ultrasound probe and puncture needle to operate, which not only increases the difficulty of the operation, but also may cause doctor fatigue and the risk of misoperation; However, since the direction and position of the puncture needle need to be adjusted according to the actual situation during the operation, the position and angle of the probe need to be adjusted. However, the existing ultrasonic probe fixing device has the problem of insufficient and inaccurate adjustment of the probe angle during actual use, and low fixing stability of the ultrasonic probe. Therefore, in response to the above technical problems, this solution proposes an ultrasound-guided nerve block puncture stent for anesthesia. Summary of the invention
[0003] In order to solve the above technical problems, the present invention designs an ultrasound-guided nerve block puncture stent for anesthesia, by arranging an adjustment component at the front end of the support component, by arranging a three-layer transmission mechanism in the adjustment component, and by driving the rotation through a transmission motor arranged at the rear end, thereby achieving the circumferential rotation, horizontal angle adjustment, and vertical angle adjustment of the front end of the adjustment device respectively; and by arranging a clamping component at the rear end of the adjustment component, threaded clamping blocks are arranged at both ends of the screw, and the rotation of the screw drives the clamping blocks to slide relatively, thereby clamping and fixing the probe, and ensuring that the device maintains stability during the adjustment process; In order to achieve the above technical effects, the present invention is implemented by the following technical solutions: an ultrasound-guided nerve block puncture stent for anesthesia, comprising: a support component, an adjustment component, and a clamping component; An adjustment component is arranged at the rear end of the support component; and the rear end of the adjustment component is fixedly connected to the clamping component; The adjustment assembly includes a motor seat, a support plate, a transmission motor, a driving gear, a driven gear, a transmission sleeve 2, a bevel gear 1, a transmission sleeve 1, a transmission rod, a bevel gear 2, an adjustment rod, a rotating rod, an L-shaped connecting rod, an adjustment support rod, a rotating ring, a bevel gear 3, a bevel gear 4, and a bevel gear 5; the support plate is fixedly connected to the adjustment assembly, three motor seats are arranged on the support plate and are respectively fixedly connected to the transmission motor, and a rotating ring is arranged at the front end of the motor seat; driving gears are respectively arranged at the front ends of the transmission motors on both sides, and the front end of the middle transmission motor is fixedly connected to the transmission rod; the front end of the transmission rod is provided with a bevel gear 2, which is externally rotatably connected to the transmission sleeve 2; the rear end of the transmission sleeve 2 is provided with A driven gear is arranged to mesh with a driving gear on one side, a bevel gear 1 is arranged at the front end, and the outside is rotatably connected to a transmission sleeve 1; a driven gear is arranged at the rear end of the transmission sleeve 1 to mesh with a driving gear on the other side, and the middle is rotatably connected to a rotating ring, and adjustment rods are symmetrically arranged on both sides of the front end; the adjustment rods are rotatably connected to the rotating rods respectively; the rotating rod on one side is fixedly connected to the bevel gear 3 to mesh with the bevel gear 1, and the other side is provided with the bevel gear 4 to mesh with the bevel gear 2; the middle of the rotating rod is fixedly connected to an L-shaped connecting rod; the rear end of the L-shaped connecting rod is fixedly connected to an adjustment support rod; the front end of the adjustment support rod is fixedly connected to a clamping assembly, and the rear end is rotatably connected to the bevel gear 5; the bevel gear 5 meshes with the bevel gear 4; Furthermore, in the adjustment assembly, the bevel gear 1 and the bevel gear 3 are of the same size, and the bevel gear 2, the bevel gear 4, and the bevel gear 5 are of the same size; Furthermore, the rotating ring is coaxially arranged with the intermediate motor seat; Furthermore, the lengths of the transmission rod, the second transmission sleeve, and the first transmission sleeve decrease in sequence; Furthermore, the support plate is externally fixedly connected to the protective shell; Furthermore, the support assembly includes a support base plate, an L-shaped support plate, a telescopic plate, a telescopic limit column, a spring, and a limit groove; an L-shaped support plate is arranged at the upper end of the support base plate; a plurality of limit grooves are arranged in an array on both sides of the rear end of the L-shaped support plate; grooves are symmetrically arranged on both sides of the front end of the telescopic plate to fix and connect the spring; a telescopic limit column is arranged at the rear end of the spring to slide and connect the limit groove; Furthermore, the clamping assembly includes a clamping support rod, a clamping block, a clamping base plate, a limit clamp, a knob, a screw, a limit block, and a clamping rod; the rear end of the clamping support rod is fixedly connected to the adjustment support rod, and the front end is fixedly connected to the clamping base plate; a limit clamp is arranged in the middle of the clamping base plate; a limit block is arranged in the middle of the clamping rod and is rotatably connected to the limit clamp, screws are arranged at both ends, and a knob is arranged at the front end; the screws are respectively threadedly connected to the clamping blocks; Furthermore, the thread pitches of the screws at both ends of the clamping rod are the same, and the thread rotation directions are opposite.
[0004] The beneficial effects of the present invention are: The present invention arranges an adjustment component at the front end of the support component, arranges a three-layer transmission mechanism in the adjustment component, and drives the rotation through a transmission motor arranged at the rear end, thereby achieving circumferential rotation of the front end of the adjustment device, horizontal angle adjustment, and vertical angle adjustment, so that the doctor can flexibly adjust the direction and position of the puncture needle according to actual conditions during the operation, thereby greatly improving the accuracy of puncture; A clamping assembly is provided at the rear end of the adjustment assembly, and threaded clamping blocks are provided at both ends of the screw. The screw is rotated to drive the clamping blocks to slide relatively, thereby clamping and fixing the probe and ensuring that the device maintains stability during the adjustment process. This not only ensures the stability of the probe during the adjustment process, but also reduces the risk of misoperation caused by shaking of the probe. BRIEF DESCRIPTION OF THE DRAWINGS
[0005] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.
[0006] Figure 1 It is a schematic diagram of the overall structure of an ultrasound-guided nerve block puncture stent for anesthesia; Figure 2 This is a schematic diagram of the internal structure of a nerve block puncture stent guided by ultrasound for anesthesia; Figure 3 This is a top view of the internal structure of a nerve block puncture stent guided by ultrasound for anesthesia; Figure 4 The exploded view is an adjustment component of an ultrasound-guided nerve block puncture stent for anesthesia; Figure 5 The diagram is a schematic diagram of the telescopic rod connection structure of an ultrasound-guided nerve block puncture stent for anesthesia; Figure 6 The diagram is a schematic diagram of the structure of a clamping rod of an ultrasound-guided nerve block puncture stent for anesthesia; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-support assembly, 101-support base plate, 102-L-shaped support plate, 103-telescopic plate, 104-telescopic limit column, 105-spring, 106-limiting groove, 2-adjustment assembly, 201-motor seat, 202-support plate, 203-transmission motor, 204-driving gear, 205-driven gear, 206-transmission sleeve 2, 207-bevel gear 1, 208-transmission sleeve 1, 209-transmission rod, 210-bevel gear 2. 211-adjusting rod, 212-rotating rod, 213-L-shaped connecting rod, 214-adjusting support rod, 215-rotating ring, 216-bevel gear three, 217-bevel gear four, 218-bevel gear five, 219-protective shell, 3-clamping assembly, 301-clamping support rod, 302-clamping block, 303-clamping base plate, 304-limiting clamp, 305-knob, 306-screw, 307-limiting block, 308-clamping rod. DETAILED DESCRIPTION
[0007] The present invention discloses an ultrasound-guided nerve block puncture support for anesthesia, comprising: a support component 1, an adjustment component 2, and a clamping component 3; the adjustment component 2 is arranged at the rear end of the support component 1; the rear end of the adjustment component 2 is fixedly connected to the clamping component 3; the adjustment component 2 comprises a motor seat 201, a support plate 202, a transmission motor 203, a driving gear 204, a driven gear 205, a transmission sleeve 206, a bevel gear 1 207, a transmission sleeve 1 208, a transmission rod 209, a bevel gear 210, an adjustment rod 211, a rotating rod 212, and a rotating rod 213. 12, L-shaped connecting rod 213, adjustment support rod 214, rotating ring 215, bevel gear three 216, bevel gear four 217, bevel gear five 218; the support plate 202 is fixedly connected to the adjustment component 2, three motor seats 201 are arranged on the support plate 202 and are respectively fixedly connected to the transmission motor 203, and a rotating ring 215 is arranged at the front end of the motor seat 201; the front ends of the transmission motors 203 on both sides are respectively provided with driving gears 204, and the front end of the middle transmission motor 203 is fixedly connected to the transmission rod 209; the front end of the transmission rod 209 is provided with a bevel gear two 210, externally rotatably connected to the transmission sleeve 206; the rear end of the transmission sleeve 206 is provided with a driven gear 205 meshing with the driving gear 204 on one side, and the front end is provided with a bevel gear 1 207, and the externally rotatably connected to the transmission sleeve 1 208; the rear end of the transmission sleeve 1 208 is provided with a driven gear 205 meshing with the driving gear 204 on the other side, and the middle is rotatably connected to the rotating ring 215, and the front ends are symmetrically provided with adjustment rods 211; the adjustment rods 211 are respectively rotatably connected to the rotating rods 212; the rotating rod 212 on one side is fixedly connected to the bevel gear 3 216 meshing The rotating rod 212 is fixedly connected to the L-shaped connecting rod 213 in the middle; the rear end of the L-shaped connecting rod 213 is fixedly connected to the adjustment support rod 214; the front end of the adjustment support rod 214 is fixedly connected to the clamping assembly 3, and the rear end is rotatably connected to the bevel gear five 218; the bevel gear five 218 is engaged with the bevel gear four 217; the doctor can flexibly adjust the direction and position of the puncture needle according to the actual situation during the operation, thereby greatly improving the accuracy of puncture.
[0008] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1
[0009] As attached Figure 1-4As shown in , 6, the rear end of the support component 1 is provided with an adjustment component 2; the rear end of the adjustment component 2 is fixedly connected to the clamping component 3; the adjustment component 2 includes a motor seat 201, a support plate 202, a transmission motor 203, a driving gear 204, a driven gear 205, a transmission sleeve 206, a bevel gear 1 207, a transmission sleeve 1 208, a transmission rod 209, a bevel gear 210, an adjustment rod 211, a rotating rod 212, an L-shaped connecting rod 213, an adjustment support rod 214, a rotating ring 215, a bevel gear 3 216, a bevel gear Four 217, helical gear five 218; the support plate 202 is fixedly connected to the adjustment component 2, three motor seats 201 are arranged on the support plate 202 and are respectively fixedly connected to the transmission motor 203, and a rotating ring 215 is arranged at the front end of the motor seat 201; the front ends of the transmission motors 203 on both sides are respectively provided with driving gears 204, and the front end of the middle transmission motor 203 is fixedly connected to the transmission rod 209; the front end of the transmission rod 209 is provided with a helical gear two 210, which is externally rotatably connected to the transmission sleeve two 206; the rear end of the transmission sleeve two 206 is provided with a driven gear The wheel 205 meshes with the driving gear 204 on one side, and a bevel gear 1 207 is set at the front end, and the outer part is rotatably connected to the transmission sleeve 1 208; the rear end of the transmission sleeve 1 208 is provided with a driven gear 205 meshing with the driving gear 204 on the other side, and the middle is rotatably connected to the rotating ring 215, and the front ends are symmetrically provided with adjustment rods 211 on both sides; the adjustment rods 211 are respectively rotatably connected to the rotating rods 212; the rotating rod 212 on one side is fixedly connected to the bevel gear 3 216 meshing with the bevel gear 1 207, and the other side is provided with a bevel gear 4 217 meshing with the bevel gear 2 210 The rotating rod 212 is fixedly connected to the L-shaped connecting rod 213 in the middle; the rear end of the L-shaped connecting rod 213 is fixedly connected to the adjusting support rod 214; the front end of the adjusting support rod 214 is fixedly connected to the clamping assembly 3, and the rear end is rotatably connected to the bevel gear five 218; the bevel gear five 218 meshes with the bevel gear four 217; the rotating ring 215 is coaxially arranged with the intermediate motor seat 201; the lengths of the transmission rod 209, the transmission sleeve two 206, and the transmission sleeve one 208 decrease in sequence; the support plate 202 is fixedly connected to the protective shell 219 on the outside; In this embodiment, the working principle of the adjustment component 2 is: By starting the transmission motor 203 in the middle to rotate, the motor drives the transmission rod 209 to rotate, thereby driving the bevel gear 2 210 at the front end of the transmission rod 209 to rotate, thereby driving the bevel gear 4 217 meshing with the bevel gear 210 to rotate, and the bevel gear 4 217 rotates to drive the bevel gear 5 218 meshing therewith to rotate, thereby driving the adjustment support rod 214 at the front end of the bevel gear 5 218 to rotate circumferentially; By starting the right transmission motor 203 to rotate, the transmission motor 203 drives the driving gear 204 to rotate, and the driving gear 204 drives the driven gear 205 meshing therewith to rotate, thereby driving the transmission sleeve 206 to rotate, and the rotation of the transmission sleeve 206 drives the bevel gear 1 207 at the front end to rotate, and the rotation of the bevel gear 1 207 drives the bevel gear 3 216 meshing therewith to rotate, and through the fixed connection between the rotating rod 212 and the L-shaped connecting rod 213, the bevel gear 3 216 drives the L-shaped connecting rod 213 to rotate, thereby adjusting the support rod 214 to rotate in the vertical direction; By starting the left transmission motor 203 to rotate, the transmission motor 203 drives another transmission gear to rotate, so that the driving gear 204 drives the driven gear 205 meshing therewith to rotate, thereby driving the transmission sleeve 1 208 to rotate, and the rotation of the transmission sleeve 1 208 drives the front end adjustment rod 211 to rotate, so that the front end of the adjustment rod 211 is connected to the bevel gear 4 217 to rotate along the bevel gear 210, thereby driving the bevel gear 5 218 meshing therewith to rotate along the bevel gear 4 217, thereby adjusting the support rod 214 to rotate axially around the transmission sleeve 1 208, and the probe can be adjusted in multiple directions and angles; In this embodiment, the adjustment component 2 realizes circumferential rotation, horizontal angle adjustment and vertical angle adjustment of the front end of the device through the design of a three-layer transmission mechanism, so that the doctor can flexibly adjust the direction and position of the puncture needle according to actual conditions during the operation, thereby improving the accuracy of puncture, reducing the doctor's operating difficulty and fatigue, and reducing the risk of misoperation. Example 2
[0010] As attached Figure 1 , 2 As shown in Figure 5, the support assembly 1 includes a support base plate 101, an L-shaped support plate 202102, a telescopic plate 103, a telescopic limiting column 104, a spring 105, and a limiting groove 106; an L-shaped support plate 202102 is arranged on the upper end of the support base plate 101; a plurality of limiting grooves 106 are arranged in an array on both sides of the rear end of the L-shaped support plate 202102; grooves are symmetrically arranged on both sides of the front end of the telescopic plate 103 to fix and connect the spring 105; a telescopic limiting column 104 is arranged at the rear end of the spring 105 to slide and connect the limiting groove 106; In this embodiment, when the device is in use, the telescopic plate 103 can be pulled according to the use needs, and the telescopic limit column 104 can be pressed back through the convex part of the limit groove 106, so that the spring 105 is compressed. After being stretched to a suitable length, the telescopic limit column 104 is ejected and extended into the limit groove 106 through the elastic return effect of the spring 105, and the locking can be automatically completed; In this embodiment, the telescopic plate 103 of the support component 1 allows the doctor to make fine adjustments according to actual needs. Through the cooperation of the telescopic limit column 104 and the limit groove 106, the height and position of the support component 1 can be conveniently adjusted to adapt to the body shape and surgical needs of different patients, which not only improves the flexibility of the operation, but also ensures the accuracy and safety of puncture. Example 3
[0011] As attached Figure 1-4 As shown, the clamping assembly 3 includes a clamping support rod 301, a clamping block 302, a clamping base plate 303, a limit clamp 304, a knob 305, a screw 306, a limit block 307, and a clamping rod 308; the rear end of the clamping support rod 301 is fixedly connected to the adjustment support rod 214, and the front end is fixedly connected to the clamping base plate 303; a limit clamp 304 is arranged in the middle of the clamping base plate 303; a limit block 307 is arranged in the middle of the clamping rod 308 to be rotatably connected to the limit clamp 304, screws 306 are arranged at both ends, and a knob 305 is arranged at the front end; the screw 306 is respectively threadedly connected to the clamping block 302; the thread pitch of the screws 306 at both ends of the clamping rod 308 is the same, and the thread rotation direction is opposite; In this embodiment, when the clamping assembly 3 is in use, the knob 305 is rotated to drive the clamping rod 308 to rotate, and the position of the clamping rod 308 is kept fixed by the rotation connection and axial limit of the limit block 307 and the limit clamp 304. The rotation of the clamping rod 308 drives the screw rod 306 to rotate, and the screw rod 306 is threadedly connected to the clamping block 302. At the same time, the bottom of the clamping block 302 is connected to the clamping base plate 303 to prevent it from rotating, so that the clamping block 302 slides along the screw rod 306, thereby clamping and fixing the probe; In this embodiment, the clamping portion of the clamping block 302 may be made of a soft material having an anti-slip property such as a rubber pad in actual use, which can not only increase the stability of the clamping, but also protect the outside of the probe to prevent the rigid clamping structure from damaging the probe. In this embodiment, the clamping assembly 3 is provided with a threaded connection clamping block 302 at both ends of the screw 306, and the screw 306 rotates to drive the clamping block 302 to slide relatively, so as to firmly clamp the probe, ensure the stability of the probe during the adjustment process, improve the accuracy of puncture, and reduce the risk of misoperation caused by shaking of the probe.
[0012] In summary, the present invention arranges the adjustment component 2 at the front end of the support component 1, arranges a three-layer transmission mechanism in the adjustment component 2, and drives the rotation through the transmission motor 203 arranged at the rear end, so as to achieve the circumferential rotation of the front end of the adjustment device, horizontal angle adjustment, and vertical angle adjustment, respectively, so that the doctor can flexibly adjust the direction and position of the puncture needle according to the actual situation during the operation, thereby greatly improving the accuracy of puncture; A clamping assembly 3 is provided at the rear end of the adjustment assembly 2, and threaded clamping blocks 302 are provided at both ends of the screw 306. The screw 306 rotates to drive the clamping block 302 to slide relatively, thereby clamping and fixing the probe and ensuring that the device maintains stability during the adjustment process. This not only ensures the stability of the probe during the adjustment process, but also reduces the risk of misoperation caused by shaking of the probe.
[0013] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.
Claims
1. An ultrasound-guided nerve block puncture stent for anesthesia, characterized in that: Including: supporting assembly, adjusting assembly, clamping assembly; An adjustment component is arranged at the rear end of the support component; and the rear end of the adjustment component is fixedly connected to the clamping component; The adjustment assembly includes a motor seat, a support plate, a transmission motor, a driving gear, a driven gear, a transmission sleeve 2, a bevel gear 1, a transmission sleeve 1, a transmission rod, a bevel gear 2, an adjustment rod, a rotating rod, an L-shaped connecting rod, an adjustment support rod, a rotating ring, a bevel gear 3, a bevel gear 4, and a bevel gear 5; the support plate is fixedly connected to the adjustment assembly, three motor seats are arranged on the support plate and are respectively fixedly connected to the transmission motor, and a rotating ring is arranged at the front end of the motor seat; driving gears are respectively arranged at the front ends of the transmission motors on both sides, and the front end of the middle transmission motor is fixedly connected to the transmission rod; the front end of the transmission rod is provided with a bevel gear 2, which is externally rotatably connected to the transmission sleeve 2; the rear end of the transmission sleeve 2 is provided with A driven gear is arranged to mesh with a driving gear on one side, a bevel gear 1 is arranged at the front end, and the outside is rotatably connected to a transmission sleeve 1; a driven gear is arranged at the rear end of the transmission sleeve 1 to mesh with the driving gear on the other side, and the middle is rotatably connected to a rotating ring, and adjustment rods are symmetrically arranged on both sides of the front end; the adjustment rods are rotatably connected to rotating rods respectively; the rotating rod on one side is fixedly connected to bevel gear 3 to mesh with bevel gear 1, and the other side is provided with bevel gear 4 to mesh with bevel gear 2; the middle of the rotating rod is fixedly connected to an L-shaped connecting rod; the rear end of the L-shaped connecting rod is fixedly connected to an adjustment support rod; the front end of the adjustment support rod is fixedly connected to a clamping assembly, and the rear end is rotatably connected to bevel gear 5; the bevel gear 5 meshes with bevel gear 4.
2. The ultrasound-guided nerve block puncture stent for anesthesia according to claim 1, characterized in that: In the adjustment assembly, the bevel gear 1 and the bevel gear 3 are of the same size, and the bevel gear 2, the bevel gear 4 and the bevel gear 5 are of the same size.
3. The ultrasound-guided nerve block puncture stent for anesthesia according to claim 1, characterized in that: The rotating ring is coaxially arranged with the middle motor seat.
4. The ultrasound-guided nerve block puncture stent for anesthesia according to claim 1, characterized in that: The lengths of the transmission rod, the second transmission sleeve and the first transmission sleeve decrease in sequence.
5. The ultrasound-guided nerve block puncture stent for anesthesia according to claim 1, characterized in that: The support plate is externally fixedly connected to the protective shell.
6. The ultrasound-guided nerve block puncture stent for anesthesia according to claim 1, characterized in that: The support assembly includes a support base plate, an L-shaped support plate, a telescopic plate, a telescopic limit column, a spring, and a limit groove; an L-shaped support plate is arranged at the upper end of the support base plate; a plurality of limit grooves are arranged in an array on both sides of the rear end of the L-shaped support plate; grooves are symmetrically arranged on both sides of the front end of the telescopic plate to fix and connect the spring; a telescopic limit column is arranged at the rear end of the spring to slide and connect the limit groove.
7. The ultrasound-guided nerve block puncture stent for anesthesia according to claim 1, characterized in that: The clamping assembly includes a clamping support rod, a clamping block, a clamping base plate, a limit clamp, a knob, a screw, a limit block, and a clamping rod; the rear end of the clamping support rod is fixedly connected to the adjustment support rod, and the front end is fixedly connected to the clamping base plate; a limit clamp is arranged in the middle of the clamping base plate; a limit block is arranged in the middle of the clamping rod and is rotatably connected to the limit clamp, screws are arranged at both ends, and a knob is arranged at the front end; the screws are respectively threadedly connected to the clamping blocks.
8. The ultrasound-guided nerve block puncture stent for anesthesia according to claim 7, characterized in that: The thread pitches of the screw rods at both ends of the clamping rod are the same, and the thread rotation directions are opposite.