Ultrasonic-guided nerve block anesthesia puncture device
By designing a puncture device for ultrasound-guided nerve block anesthesia, the problem of easy movement of the puncture needle during one-hand operation is solved, and the fixation and flexible adjustment of the needle and probe are achieved, improving the accuracy and safety of anesthesia.
Patent Information
- Application Number
- CN202510178940.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-04-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the ultrasound-guided nerve block anesthesia puncture, the puncture needle is easily moved during one-hand operation, resulting in poor anesthesia effect and it is difficult to ensure whether the puncture needle is inserted into the nerve, which may cause damage to the patient's nerves.
An ultrasonic guided nerve block anesthesia puncture device is designed to clamp and fix the ultrasonic puncture tube by setting up a clamping assembly to ensure the fixed position of the puncture needle and the ultrasonic probe, and to achieve flexible adjustment of the needle and probe and swing spraying of the nozzle through the first threaded telescopic rod and telescopic assembly.
The device reduces errors in operation by fixing the puncture needle and ultrasound probe, improves the accuracy and safety of nerve block anesthesia, and reduces the risk of puncture needle accidental injury by improving ultrasound image quality.
Smart Images
Figure CN119867892A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of anesthesia puncture, and in particular relates to an ultrasound-guided nerve block anesthesia puncture device. Background Art
[0002] Anesthesia is a crucial part of surgical operations. Ultrasound-guided nerve block anesthesia means that the anesthesiologist uses B-ultrasound to find the patient's nerve location, and then injects local anesthetics near the nerve trunk to anesthetize the area controlled by the nerve by blocking the conduction of nerve impulses, achieving the effect of precise positioning and precision anesthesia. Ultrasound-guided nerve block anesthesia technology can effectively improve the success rate of a single puncture, improve the quality of nerve block anesthesia, greatly alleviate the patient's pain, and at the same time reduce the risk of complications such as pneumothorax, nerve and blood vessel damage, and improve the safety of anesthesia; In the field of contemporary medical anesthesia practice, nerve block anesthesia is a key technology, and accuracy, safety and efficiency are always the core goals pursued. However, traditional nerve block anesthesia puncture methods have shown obvious shortcomings when dealing with complex and changeable clinical conditions, giving rise to an urgent need for new ultrasound-guided puncture devices. This need has been highlighted in a large number of international and domestic medical studies.
[0003] During the use of the nerve block anesthesia puncture device, the operator holds the ultrasound probe in his left hand and the puncture needle in his right hand. After puncturing to the ideal position, the operator's hands cannot move, and the assistant is responsible for the next task: the assistant holds the syringe and draws back to see if there is blood return. If there is, it means that the blood vessel is touched, then the medicine cannot be pushed and the position needs to be adjusted; if there is no blood return, push the medicine to see if the resistance of the syringe is large. If the resistance is large, it may enter the nerve by mistake and the puncture needle needs to be adjusted. If the resistance is not large and the medicine is pushed smoothly, the assistant pushes the medicine out of the syringe. However, in actual use, sometimes there are many surgeries and no assistants. When an anesthesiologist operates, after the right hand inserts the puncture needle to the ideal position, the left hand holding the ultrasound probe cannot move. The right hand can only release the puncture needle and push the medicine with the syringe containing the medicine in the right hand. There is a risk that the puncture needle will move. If there is a deviation, the effect of nerve block anesthesia will be poor. Moreover, it is impossible to sense and judge whether the puncture needle has been inserted into the nerve during the drug pushing process. If the injection is performed when the nerve is inserted, the effect of nerve block anesthesia will be affected and the patient's nerves will be damaged.
[0004] In view of this, the present invention is proposed. Summary of the invention
[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an ultrasound-guided nerve block anesthesia puncture device to solve the problems raised in the above-mentioned background technology.
[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: An ultrasound-guided nerve block anesthesia puncture device comprises: a base, a fixed rod is installed on the upper side of the base, a groove is opened at one end of the fixed rod, a movable rod is slidably matched in the groove, a cross bar is pinned on the movable rod, a clamping assembly is movably matched at one end of the cross bar, and an ultrasonic anesthesia puncture tube is arranged in the clamping assembly; A first threaded telescopic rod is rotatably engaged in the groove, a threaded end of the first threaded telescopic rod is fixedly connected to the movable rod, a placement groove is provided on one side of the base, a pedal is rotatably engaged in the placement groove, and the first threaded telescopic rod is in transmission engagement with the pedal; A movable plate is slidably fitted in the ultrasonic anesthesia puncture tube, a fixed box and a fixed frame are installed on one side of the movable plate, a nozzle is rotatably fitted on the fixed box, a connecting sleeve is installed on the fixed frame, a puncture needle is provided at one end of the connecting sleeve, and an ultrasonic probe is provided on one side of the movable plate; A support plate is fixedly connected inside the ultrasonic anesthesia puncture tube, a telescopic component is installed between the support plate and the movable plate, and a swing component connected to the nozzle is installed in the fixed box.
[0007] Optionally, the base is provided with an inner cavity connected to the groove, a first bevel gear is installed on the circumference of the first threaded telescopic rod, a fixed block is installed in the inner cavity, one side of the fixed block is rotatably engaged with a rotating rod, one end of the rotating rod is provided with a second bevel gear meshing with the first bevel gear, and the other end of the rotating rod is provided with a rotating disk engaged with the pedal transmission; one side of the rotating disk is provided with a first rotating shaft, one side of the pedal is provided with a second rotating shaft, a swing rod is provided between the first rotating shaft and the second rotating shaft, a support is provided on the bottom side of the placement groove, and the pedal is rotatably engaged on the upper side of the support.
[0008] Optionally, the clamping assembly includes a fixed cylinder, a clamping plate is slidably fitted inside the fixed cylinder, a first bolt is threadedly fitted into one side of the fixed cylinder, one end of the first bolt is fixedly connected to the clamping plate, a protrusion is installed on one side of the fixed cylinder, and a groove corresponding to the protrusion is opened at one end of the cross bar, and the cross-sections of the protrusion and the groove are circular.
[0009] Optionally, two fixing plates are installed on one side of the fixing rod, and the upper side of the fixing plate located at the upper part is threadedly engaged with a second bolt.
[0010] Optionally, the telescopic assembly includes a first driving member installed on one side of the support plate, a second threaded telescopic rod installed between the first driving member and the movable plate, the support plate being provided with a first bellows and a second bellows fixedly connected to the connecting sleeve and the nozzle respectively; an opening corresponding to the nozzle is provided on one side of the fixed box, and the swing assembly is located in the fixed box; the swing assembly includes a connecting block rotatably engaged in the fixed box and connected to the nozzle, a swing plate installed on one side of the connecting block, a slide groove opened on one side of the swing plate, a second driving member installed in the fixed box, a disc installed at the output end of the second driving member, and a slider installed on one side of the disc and slidably engaged in the slide groove; a ring connected to the connecting block is sleeved on the nozzle head, and a movable shaft fixedly connected to the connecting block is rotatably engaged in the fixed box.
[0011] Optionally, at least two limiting grooves are provided on the inner side of the ultrasonic anesthesia puncture tube, and a movable block fixedly connected to the movable plate is slidably fitted in the limiting groove.
[0012] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below at the same time: The clamping assembly provided can clamp and fix the ultrasonic anesthesia puncture tube, and can fix the puncture needle and the ultrasonic probe, so that the doctor can free his hands to use the syringe to push the medicine, reducing the situation where the puncture needle and the ultrasonic probe in the handheld ultrasonic anesthesia puncture tube will move with deviation, thereby improving the anesthetic effect of nerve block. The first threaded telescopic rod provided can enable the doctor to step on the pedal to drive the movable rod to move up and down through the first threaded telescopic rod, and can adjust the puncture needle and the ultrasonic probe in the ultrasonic anesthesia puncture tube up and down. The horizontal rod is adjusted to rotate to achieve the position change of the puncture needle and the ultrasonic probe in the ultrasonic anesthesia puncture tube, which can make the adjustment of the puncture needle and the ultrasonic probe more flexible. Through the telescopic component, the puncture needle, ultrasonic probe and nozzle can be extended out of the ultrasonic anesthesia puncture tube, and the coupling agent is first sprayed to the nerve block position through the nozzle. Through the swing component, the nozzle can swing at the end of the ultrasonic anesthesia puncture tube to spray the coupling agent, which increases the spraying range of the nozzle and can evenly spray the coupling agent on the nerve block position. The coupling agent can fill the tiny gap between the ultrasonic probe and the skin and eliminate the reflection caused by the air, thereby greatly improving the quality of the ultrasonic image. The clear image helps to locate the nerves and blood vessels more accurately and reduces the risk of accidental injury by the puncture needle.
[0013] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings: Figure 1 It is a schematic diagram of the structure of anesthesia puncture device; Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle; Figure 3 is a schematic diagram of the structure of a first threaded telescopic rod; Figure 4 is a schematic diagram of the pedal structure; Figure 5 This is a schematic diagram of the structure of the ultrasonic anesthesia puncture tube; Figure 6 It is a schematic diagram of the telescopic component structure; Figure 7 Schematic diagram of the nozzle structure; Figure 8 It is a schematic diagram of the swing component structure.
[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Base 1, fixed rod 2, movable rod 3, cross bar 4, groove 5, protrusion 6, fixed tube 7, clamp 8, first bolt 9, fixed plate 10, second bolt 11, channel 12, inner cavity 13, first threaded telescopic rod 14, first bevel gear 15, second bevel gear 16, fixed block 17, turntable 18, swing rod 19, first rotating shaft 22, second rotating shaft 23, pedal 24, placement slot 25, ultrasonic anesthesia puncture tube 26, movable plate 27, fixed box 28, Opening 29, nozzle 30, fixing frame 31, puncture needle 32, connecting sleeve 33, first bellows 34, second bellows 35, telescopic assembly 36, first driving member 3601, second threaded telescopic rod 3602, supporting plate 37, collar 38, swinging assembly 39, second driving member 3901, movable shaft 3902, connecting block 3903, swinging plate 3904, slide groove 3905, slider 3906, disc 3907, ultrasonic probe 40.
[0016] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0017] The present invention will now be described in further detail with reference to the accompanying drawings.
[0018] See also Figure 1-8As shown, in this embodiment, an ultrasound-guided nerve block anesthesia puncture device is provided, comprising: a base 1, a fixed rod 2 is mounted on the upper side of the base 1, a groove 12 is provided at one end of the fixed rod 2, a movable rod 3 is slidably fitted in the groove 12, a cross bar 4 is pinned on the movable rod 3, a clamping assembly is movably fitted at one end of the cross bar 4, and an ultrasonic anesthesia puncture tube 26 is arranged in the clamping assembly; A first threaded telescopic rod 14 is rotatably engaged in the groove 12, and a threaded end of the first threaded telescopic rod 14 is fixedly connected to the movable rod 3. A placement groove 25 is provided on one side of the base 1, and a pedal 24 is rotatably engaged in the placement groove 25. The first threaded telescopic rod 14 is in transmission engagement with the pedal 24. A movable plate 27 is slidably fitted inside the ultrasonic anesthesia puncture tube 26, a fixed box 28 and a fixed frame 31 are installed on one side of the movable plate 27, a nozzle 30 is rotatably fitted on the fixed box 28, a connecting sleeve 33 is installed on the fixed frame 31, a puncture needle 32 is provided at one end of the connecting sleeve 33, and an ultrasonic probe 40 is provided on one side of the movable plate 27; A support plate 37 is fixedly connected inside the ultrasonic anesthesia puncture tube 26 , a telescopic component 36 is installed between the support plate 37 and the movable plate 27 , and a swing component 39 connected to the nozzle 30 is installed in the fixed box 28 .
[0019] The clamping assembly provided can clamp and fix the ultrasonic anesthesia puncture tube 26, and can fix the puncture needle 32 and the ultrasonic probe 40, so that the doctor can free his hands to use the syringe to push the medicine, and reduce the situation where the puncture needle 32 and the ultrasonic probe 40 in the handheld ultrasonic anesthesia puncture tube 26 move with deviation, thereby improving the anesthetic effect of nerve block. The first threaded telescopic rod 14 provided can enable the doctor to step on the pedal 24 to drive the movable rod 3 to move up and down through the first threaded telescopic rod 14, and can adjust the puncture needle 32 and the ultrasonic probe 40 in the ultrasonic anesthesia puncture tube 26 up and down. The cross bar 4 is adjusted to rotate to achieve the position change of the puncture needle 32 and the ultrasonic probe 40 in the ultrasonic anesthesia puncture tube 26, so that the puncture needle 32 and the ultrasonic probe 40 can be adjusted up and down. The puncture needle 32 and the ultrasonic probe 40 are more flexible to adjust; through the telescopic component 36, the puncture needle 32, the ultrasonic probe 40 and the nozzle 30 can be extended out of the ultrasonic anesthesia puncture tube 26, and the coupling agent is first sprayed to the nerve block position through the nozzle 30, and the swing component 39 can be set to swing the nozzle 30 at the end of the ultrasonic anesthesia puncture tube 26 to spray the coupling agent, which increases the spraying range of the nozzle 30 and can evenly spray the coupling agent on the nerve block position. The coupling agent can fill the tiny gap between the ultrasonic probe 40 and the skin and eliminate the reflection caused by the air, thereby greatly improving the quality of the ultrasonic image. The clear image helps to more accurately locate the nerves and blood vessels and reduces the risk of accidental injury by the puncture needle 32.
[0020] like Figure 3-4As shown, the base 1 of this embodiment is provided with an inner cavity 13 connected with the groove 12, a first bevel gear 15 is installed on the circumference of the first threaded telescopic rod 14, a fixed block 17 is installed in the inner cavity 13, one side of the fixed block 17 is rotatably matched with a rotating rod, one end of the rotating rod is provided with a second bevel gear 16 meshing with the first bevel gear 15, and the other end of the rotating rod is provided with a turntable 18 that is transmission-matched with the pedal 24; a first rotating shaft 22 is installed on one side of the turntable 18, a second rotating shaft 23 is installed on one side of the pedal 24, a swing rod 19 is installed between the first rotating shaft 22 and the second rotating shaft 23, a support is installed on the bottom side of the placement groove 25, and the pedal 24 is rotatably matched on the upper side of the support.
[0021] By setting the first threaded telescopic rod 14, the doctor can step on the pedal 24, and the pedal 24 swings through the first rotating shaft 22 to drive the swing rod 19 to swing, and the swing rod 19 swings through the second rotating shaft 23 to drive the turntable 18 to rotate, and the rotation of the turntable 18 drives the rotating rod to rotate, and the rotation of the rotating rod drives the second bevel gear 16 to rotate, and the rotation of the second bevel gear 16 drives the first bevel gear 15 to rotate, and the first bevel gear 15 rotates the first threaded telescopic rod 14 to rotate, and the rotation of the first threaded telescopic rod 14 drives the movable rod 3 to move up and down through the movement of the threaded end, and the movable rod 3 moves up and down to drive the cross bar 4 to move up and down, and the cross bar 4 moves up and down through the clamping assembly to drive the ultrasonic anesthesia puncture tube 26 to move up and down, and the rotation of the cross bar 4 is adjusted to realize the position change of the puncture needle 32 and the ultrasonic probe 40 in the ultrasonic anesthesia puncture tube 26, which can make the puncture needle 32 and the ultrasonic probe 40 more flexible to adjust.
[0022] like Figure 1-2 As shown, the clamping assembly of this embodiment includes a fixed cylinder 7, a clamping plate 8 is slidably fitted inside the fixed cylinder 7, a first bolt 9 is threadedly fitted on one side of the fixed cylinder 7, one end of the first bolt 9 is fixedly connected to the clamping plate 8, a protrusion 6 is installed on one side of the fixed cylinder 7, and a groove 5 corresponding to the protrusion 6 is opened at one end of the cross bar 4, and the cross-sections of the protrusion 6 and the groove 5 are circular.
[0023] Among them, there is a friction force between the protrusion 6 and the groove 5. Through the provided splint 8, the medical staff can rotate the first bolt 9 to drive the splint 8 to move. The movement of the splint 8 can clamp and fix the ultrasonic anesthesia puncture tube 26 in the fixed tube 7, thereby fixing the ultrasonic anesthesia puncture tube 26. Through the friction force between the provided protrusion 6 and the groove 5, the angle of the fixed tube 7 can be adjusted before anesthesia, thereby adjusting the angle of the ultrasonic anesthesia puncture tube 26.
[0024] like Figure 1 As shown, two fixing plates 10 are installed on one side of the fixing rod 2 of this embodiment, and a second bolt 11 is threadedly engaged on the upper side of the fixing plate 10 located at the upper portion.
[0025] The two fixing plates 10 make it easy to fix the fixing rod 2 to the edge of the operating table by rotating the second bolt 11 before anesthesia.
[0026] like Figure 6-8 As shown, the telescopic assembly 36 of this embodiment includes a first driving member 3601 installed on one side of the support plate 37, a second threaded telescopic rod 3602 installed between the first driving member 3601 and the movable plate 27, and a first bellows 34 and a second bellows 35 fixedly connected to the connecting sleeve 33 and the nozzle 30 respectively are installed on the support plate 37; an opening 29 corresponding to the nozzle 30 is provided on one side of the fixed box 28, and the swing assembly 39 is located in the fixed box 28; the swing assembly 39 includes a connecting block 3903 rotatably fitted in the fixed box 28 and connected to the nozzle 30, and a second ... A swing plate 3904 on one side of the block 3903, a slide groove 3905 opened on one side of the swing plate 3904, a second driving member 3901 installed in the fixed box 28, a disc 3907 installed at the output end of the second driving member 3901, and a slider 3906 installed on one side of the disc 3907 and slidingly fitted in the slide groove 3905; a ring 38 connected to the connecting block 3903 is sleeved on the nozzle 30, and a movable shaft 3902 fixedly connected to the connecting block 3903 is rotatably fitted in the fixed box 28, wherein the first driving member 3601 and the second driving member 3901 are both motors.
[0027] Through the telescopic assembly 36, the first driving member 3601 can drive the second threaded telescopic rod 3602 to rotate, and the second threaded telescopic rod 3602 rotates and drives the movable plate 27 to move through the output end, and the movable plate 27 moves through the fixed box 28 and the fixed frame 31 to drive the puncture needle 32, the ultrasonic probe 40 and the nozzle 30 to extend the ultrasonic anesthesia puncture tube 26, and the coupling agent is sprayed to the nerve blocking position through the nozzle 30. Through the swing assembly 39, the second driving member 3901 can drive the disc 3907 to rotate, and the rotation of the disc 3907 drives the slider 3906 to rotate, and the slider 3906 rotates and drives the swing plate 3904 to move through the movement and extrusion in the slide groove 3905. The swing plate 3904 drives the connecting block 3903 to reciprocate. The connecting block 3903 reciprocates and swings through the support of the movable shaft 3902. The swing of the connecting block 3903 drives the nozzle 30 to swing through the ring 38, so that the nozzle 30 can swing at the end of the ultrasonic anesthesia puncture tube 26 to spray the coupling agent. While increasing the spraying range of the nozzle 30, the coupling agent can be evenly sprayed on the nerve blocking position. The coupling agent can fill the tiny gap between the ultrasonic probe 40 and the skin and eliminate the reflection caused by the air, thereby greatly improving the quality of the ultrasonic image. The clear image helps to locate the nerves and blood vessels more accurately and reduces the risk of accidental injury by the puncture needle 32.
[0028] At least two limiting grooves are provided on the inner side of the ultrasonic anesthesia puncture tube 26 of the present embodiment, and a movable block fixedly connected to the movable plate 27 is slidably fitted in the limiting grooves; through the provided limiting grooves, the movable block can be slidably fitted in the limiting grooves, thereby improving the stability of the movable plate 27 in the movement of the ultrasonic anesthesia puncture tube 26.
[0029] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any structural changes made under the enlightenment of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.
Claims
1. An ultrasound-guided nerve block anesthesia puncture device, characterized in that: include: A base (1), wherein a fixing rod (2) is mounted on the upper side of the base (1), a groove (12) is formed at one end of the fixing rod (2), a movable rod (3) is slidably engaged in the groove (12), a cross rod (4) is pinned on the movable rod (3), a clamping assembly is movably engaged at one end of the cross rod (4), and an ultrasonic anesthesia puncture tube (26) is arranged in the clamping assembly; A first threaded telescopic rod (14) is rotatably engaged in the groove (12), a threaded end of the first threaded telescopic rod (14) is fixedly connected to the movable rod (3), a placement groove (25) is provided on one side of the base (1), a pedal (24) is rotatably engaged in the placement groove (25), and the first threaded telescopic rod (14) is transmission-engaged with the pedal (24); A movable plate (27) is slidably engaged in the ultrasonic anesthesia puncture tube (26); a fixing box (28) and a fixing frame (31) are mounted on one side of the movable plate (27); a nozzle (30) is rotatably engaged on the fixing box (28); a connecting sleeve (33) is mounted on the fixing frame (31); a puncture needle (32) is disposed at one end of the connecting sleeve (33); and an ultrasonic probe (40) is disposed on one side of the movable plate (27); A support plate (37) is fixedly connected inside the ultrasonic anesthesia puncture tube (26), a telescopic component (36) is installed between the support plate (37) and the movable plate (27), and a swing component (39) connected to the nozzle (30) is installed inside the fixed box (28).
2. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: The base (1) is provided with an inner cavity (13) in communication with the groove (12); a first bevel gear (15) is mounted on the circumference of the first threaded telescopic rod (14); a fixing block (17) is mounted in the inner cavity (13); a rotating rod is rotatably engaged with one side of the fixing block (17); a second bevel gear (16) meshing with the first bevel gear (15) is mounted at one end of the rotating rod; and a rotating disk (18) drivingly engaged with the pedal (24) is mounted at the other end of the rotating rod.
3. The ultrasound-guided nerve block anesthesia puncture device according to claim 2, characterized in that: A first rotating shaft (22) is mounted on one side of the rotating disk (18), a second rotating shaft (23) is mounted on one side of the pedal (24), a swing rod (19) is mounted between the first rotating shaft (22) and the second rotating shaft (23), a support is mounted on the bottom side of the placement groove (25), and the pedal (24) is rotatably engaged with the upper side of the support.
4. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: The clamping assembly comprises a fixed cylinder (7), a clamping plate (8) is slidably fitted inside the fixed cylinder (7), a first bolt (9) is threadedly fitted on one side of the fixed cylinder (7), one end of the first bolt (9) is fixedly connected to the clamping plate (8), a protrusion (6) is installed on one side of the fixed cylinder (7), and a groove (5) corresponding to the protrusion (6) is formed at one end of the cross bar (4), and the cross-sections of the protrusion (6) and the groove (5) are circular.
5. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: Two fixing plates (10) are installed on one side of the fixing rod (2), and a second bolt (11) is threadedly engaged on the upper side of the fixing plate (10) located at the upper portion.
6. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: The telescopic assembly (36) comprises a first driving member (3601) mounted on one side of the support plate (37), and a second threaded telescopic rod (3602) mounted between the first driving member (3601) and the movable plate (27); and a first bellows (34) and a second bellows (35) respectively fixedly connected to the connecting sleeve (33) and the nozzle (30) are mounted on the support plate (37).
7. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: An opening (29) corresponding to the spray head (30) is provided on one side of the fixed box (28), and the swing assembly (39) is located inside the fixed box (28).
8. The ultrasound-guided nerve block anesthesia puncture device according to claim 7, characterized in that: The swing assembly (39) comprises a connecting block (3903) rotatably engaged in the fixed box (28) and connected to the nozzle (30), a swing plate (3904) mounted on one side of the connecting block (3903), a slide groove (3905) provided on one side of the swing plate (3904), a second driving member (3901) mounted in the fixed box (28), a disc (3907) mounted at the output end of the second driving member (3901), and a sliding block (3906) mounted on one side of the disc (3907) and slidably engaged in the slide groove (3905).
9. The ultrasound-guided nerve block anesthesia puncture device according to claim 8, characterized in that: The nozzle (30) is sleeved with a collar (38) connected to the connecting block (3903), and a movable shaft (3902) rotatably engaged in the fixing box (28) and fixedly connected to the connecting block (3903) is provided.
10. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: At least two limiting grooves are formed on the inner side of the ultrasonic anesthesia puncture tube (26), and a movable block fixedly connected to the movable plate (27) is slidably fitted in the limiting groove.