Ultrasonic-guided nerve block auxiliary stent

Abstract

The invention discloses an ultrasound-guided nerve block auxiliary stent, and relates to the related technical field of nerve block stents.The ultrasound-guided nerve block auxiliary stent comprises a puncture auxiliary mechanism arranged in an arc-shaped sliding rail. The puncture auxiliary mechanism is arranged, and two ultrasound probes capable of being rotationally adjusted are connected with a rotatable electric push rod; the two ultrasonic probes are matched with each other, the distance and the angle between the two ultrasonic probes can be controlled, so that the position and the distance of a puncture target can be better measured from two directions, and the two ultrasonic probes can rotate in the area, where nerve block needs to be conducted, of a patient after angle adjustment is completed. Distance judgment is completed through the distance measuring module in the console, the shortest distance to a puncture target is judged, puncture is conducted through the auxiliary puncture block, damage to surrounding tissue can be reduced by selecting the shortest path, the risk of complications is reduced, and the success rate of puncture is increased.

Description

Technical Field

[0001] The present invention relates to the technical field related to nerve block stents, and in particular to an ultrasound-guided nerve block auxiliary stent. Background Art

[0002] Injecting local anesthetics around nerve trunks, plexuses, and ganglia to block the conduction of impulses and produce anesthesia in the area controlled is called nerve block. Nerve block only needs one injection to obtain a larger anesthesia area. However, there is a possibility of causing serious complications, so when operating, you must be familiar with the local anatomy, understand the tissues that the puncture needle will pass through, as well as nearby blood vessels, organs, and body cavities. Commonly used nerve blocks include intercostal, infraorbital, sciatic, digital (toe) nerve trunk blocks, cervical plexus, brachial plexus blocks, and stellate ganglion and lumbar sympathetic ganglion blocks for diagnosis and treatment. Ultrasound-guided nerve block is an anesthesia technique that uses ultrasound technology to guide in real time. It accurately locates and injects drugs to block the conduction of pain nerve signals, thereby relieving pain or producing numbness. Through ultrasound imaging technology, anesthesiologists can clearly see the location of nerves, blood vessels, puncture needles, and the anatomical structure of tissues around the puncture site, thereby effectively avoiding the puncture needle from entering the blood vessel by mistake, causing nerve damage and surrounding tissue damage. In the prior art, ultrasound-guided nerve block surgery requires the user to hold an ultrasound probe in one hand and a nerve block puncture needle in the other hand, which is extremely inconvenient. Therefore, an ultrasound-guided nerve block auxiliary stent has been developed to assist in the puncture during nerve block. Ultrasound-guided nerve block surgery is often used on the upper and lower limbs and trunk of a person. However, since a person is a three-dimensional body, a single ultrasound probe cannot accurately determine the three-dimensional position and distance of the puncture. For puncture needle puncture alone, the puncture needle selects the shortest path, which is an important principle in the puncture operation. During the puncture process, selecting the shortest path can reduce damage to surrounding tissues, reduce the risk of complications, and increase the success rate of the puncture. In the prior art, the above points cannot be achieved for ultrasound-guided nerve block puncture, so an ultrasound-guided nerve block auxiliary stent that can overcome the above disadvantages is needed. Summary of the invention

[0003] The purpose of the present invention is to provide an ultrasound-guided nerve block auxiliary stent to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a puncture auxiliary mechanism arranged in the arc-shaped slide rail;

[0005] The puncture auxiliary mechanism comprises an electric slider slidingly provided in the arc slide rail, the electric slider is fixedly connected to the connecting plate, a screw is rotatably provided in the connecting plate, and a limit rod is rotatably provided in the connecting plate, and the screw is spirally transmitted with the corresponding slide, and the two slides are fixedly connected. A pair of gears are rotatably provided in the slide, and the two gears are meshed for transmission. The limit rod is provided with a slide groove, and the gear on the limit rod is slidably connected with the slide groove, one end of the limit rod is fixedly provided with a No. 1 rocker, and the end of the screw away from the No. 1 rocker is fixedly provided with a No. 2 rocker, one end of each of the gears is fixedly provided with a connecting plate, and the connecting plate is fixedly connected to the fixed end of the corresponding electric push rod, the telescopic end of the electric push rod is fixedly connected to the corresponding connecting block, and a rotating block is rotatably provided in the connecting block, A pair of fixed plates are fixedly provided at one end of the moving block away from the connecting block, and a pair of rotating plates are rotatably provided on the fixed plate, one of the rotating plates is fixedly provided with a pressure sensor, and a No. 1 slider is fixedly provided at one end of the pressure sensor away from the rotating plate attached thereto, the pressure sensor is slidably provided in a slide rail plate, and the other rotating plate in the same pair is also slidably provided in the corresponding slide rail plate, the slide rail plate is fixedly connected to the corresponding fixed block, and a spring is fixedly provided between the fixed block and the rotating plate (the No. 1 slider), the fixed block is fixedly connected to the corresponding ultrasonic probe, and an angle adjustment plate is also fixedly provided on the fixed block, a No. 1 slide rail is provided in the angle adjustment plate, a No. 2 slider is slidably provided in the No. 1 slide rail, a No. 2 slide rail is also provided on the angle adjustment plate, and a limiting groove is provided in the No. 2 slider.

[0006] Preferably, a No. 1 locking screw is also threadedly connected to the connecting block, a motor is fixed between the fixed plates, the motor shaft of the motor is fixedly connected to the corresponding rotating plate, a No. 2 locking screw is also rotatably provided on the No. 2 slider, the No. 2 locking screw and the No. 2 slider are spirally transmitted, and scale blocks are equidistantly arranged and fixed on one end of the angle adjustment plate away from the No. 2 locking screw, and a scale needle is fixed on one end of the No. 2 slider facing the scale block.

[0007] Preferably, the arc-shaped slide rail is fixedly connected to a connecting rod, the other end of the connecting rod is fixedly connected to a placement plate, the handle end of the ultrasound probe is fixedly connected to a connecting wire, the other end of the connecting wire is fixedly connected to a corresponding plug, and the plug is inserted into the console.

[0008] Preferably, an operating table is fixedly provided on the console, a display screen is also fixedly provided on the console, a connecting frame is rotatably provided under the console, and universal wheels are rotatably provided on the connecting frame at equal intervals.

[0009] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a puncture auxiliary mechanism, and provides two rotatable and adjustable ultrasonic probes connected to a rotatable electric push rod, which cooperate with each other to control the spacing and angle between the two ultrasonic probes, so as to better measure the position and distance of the puncture target from two directions, and the two ultrasonic probes can be rotated in the area where the patient needs nerve block after the angle adjustment is completed, so as to complete the distance determination through the distance measurement module in the console, thereby determining the shortest distance to the puncture target, and then performing puncture through the auxiliary puncture block, thereby completing the selection of the shortest path, which can reduce damage to surrounding tissues, reduce the risk of complications, and improve the success rate of puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the first overall structure of an embodiment of the present invention;

[0011] Figure 2 It is a schematic diagram of the second overall structure of an embodiment of the present invention;

[0012] Figure 3 It is a schematic diagram of a local structure of an embodiment of the present invention;

[0013] Figure 4 For the embodiment of the present invention Figure 1 The enlarged schematic diagram at A in the middle;

[0014] Figure 5 For the embodiment of the present invention Figure 2 The enlarged schematic diagram of point B in the middle;

[0015] Figure 6 For the embodiment of the present invention Figure 3 The enlarged schematic diagram at C in the middle;

[0016] Figure 7 For the embodiment of the present invention Figure 3 The enlarged schematic diagram at D in the middle;

[0017] Figure 8 For the embodiment of the present invention Figure 5 The enlarged schematic diagram at E in the middle;

[0018] In the figure: 11, control console; 12, connecting frame; 13, universal wheel; 14, operating table; 15, display screen; 16, plug; 17, placement plate; 18, connecting rod; 19, arc slide rail; 20, electric slider; 21, connecting plate; 22, screw; 23, limit rod; 24, rocker No. 1; 25, rocker No. 2; 26, electric push rod; 27, connecting block; 28, rotating block; 29, No. 1 locking screw; 30, fixing plate; 31, motor; 3 2. Rotating plate; 33. Pressure sensor; 34. Slider No. 1; 35. Slide plate; 36. Fixed block; 37. Spring; 38. Connecting wire; 39. Ultrasonic probe; 40. Angle adjustment plate; 41. Slide No. 1; 42. Slider No. 2; 43. Limiting groove; 44. Locking screw No. 2; 45. Slide No. 2; 46. Slide groove; 47. Slide plate; 48. Gear; 49. Connecting plate; 50. Scale needle; 51. Scale block; 61. Puncture auxiliary mechanism. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Combined with Figure 1-Figure 6 , the ultrasound-guided nerve block auxiliary stent comprises a puncture auxiliary mechanism 61 arranged in the arc-shaped slide rail 19;

[0021] The puncture auxiliary mechanism 61 includes an electric slider 20 slidably provided in the arc slide rail 19, the electric slider 20 is fixedly connected to the connecting plate 21, a screw 22 is rotatably provided in the connecting plate 21, a limit rod 23 is also rotatably provided in the connecting plate 21, the screw 22 is spirally transmitted with the corresponding slide plate 47, the two slide plates 47 are fixedly connected, a pair of gears 48 are rotatably provided in the slide plate 47, the two gears 48 are meshed for transmission, a slide groove 46 is provided on the limit rod 23, and the limit The gear 48 on the rod 23 is slidably connected to the slide slot 46, a rocker 24 is fixedly provided at one end of the limit rod 23, a rocker 25 is fixedly provided at one end of the screw rod 22 away from the rocker 24, a connecting plate 49 is fixedly provided at one end of each gear 48, the connecting plate 49 is fixedly connected to the fixed end of the corresponding electric push rod 26, the telescopic end of the electric push rod 26 is fixedly connected to the corresponding connecting block 27, a rotating block 28 is rotatably provided in the connecting block 27, and the rotating block 28 is away from the A pair of fixed plates 30 are fixedly disposed at one end of the connecting block 27, and a pair of rotating plates 32 are rotatably disposed on the fixed plate 30, wherein a pressure sensor 33 is fixedly disposed on one of the rotating plates 32, and a first slider 34 is fixedly disposed at one end of the pressure sensor 33 away from the rotating plate 32 attached thereto, and the pressure sensor 33 is slidably disposed in a slide rail plate 35, and the other rotating plate 32 in the same pair is also slidably disposed in the corresponding slide rail plate 35, and the slide rail plate 35 is fixedly connected to the corresponding fixed block 36 , and a spring 37 is fixedly provided between the fixed block 36 and the rotating plate 32 (the first slider 34), the fixed block 36 is fixedly connected to the corresponding ultrasonic probe 39, and an angle adjustment plate 40 is also fixedly provided on the fixed block 36, a first slide rail 41 is provided in the angle adjustment plate 40, a second slide rail 42 is slidably provided in the first slide rail 41, a second slide rail 45 is also provided on the angle adjustment plate 40, a limiting groove 43 is provided in the second slide rail 42, and the limiting groove 43 is used to assist the puncture needle in puncture.

[0022] Advantageously, a No. 1 locking screw 29 is also threadedly connected to the connecting block 27, and the No. 1 locking screw 29 is used to lock the rotation of the rotating block 28. A motor 31 is fixed between the fixed plates 30, and the motor shaft of the motor 31 is fixedly connected to the corresponding rotating plate 32. A No. 2 locking screw 44 is also rotatably provided on the No. 2 slider 42, and the No. 2 locking screw 44 is spirally transmitted with the No. 2 slider 42, and the No. 2 locking screw 44 is used to lock the No. 2 slider 42. Scale blocks 51 are equidistantly arranged and fixed on one end of the angle adjustment plate 40 away from the No. 2 locking screw 44, and a scale needle 50 is fixed on the end of the No. 2 slider 42 facing the scale block 51, and the scale needle 50 is used to cooperate with the scale block 51 to measure the angle of the No. 2 slider 42.

[0023] Advantageously, the arc-shaped slide rail 19 is fixedly connected to a connecting rod 18, the other end of the connecting rod 18 is fixedly connected to a placement plate 17, the placement plate 17 is used to facilitate the patient to place his limbs, the handle end of the ultrasonic probe 39 is fixedly connected to a connecting wire 38, the other end of the connecting wire 38 is fixedly connected to a corresponding plug 16, and the plug 16 is inserted into the console 11.

[0024] Advantageously, an operating table 14 is fixedly provided on the console 11, and the operating table 14 is used for operation and control. A display screen 15 is also fixedly provided on the console 11, and the display screen 15 is used to observe the image observed by the ultrasonic probe 39. A connecting frame 12 is also rotatably provided under the console 11, and universal wheels 13 are rotatably provided on the connecting frame 12 at equal intervals, and the universal wheels 13 are used to facilitate the movement of the console 11.

[0025] Method of use of the present invention:

[0026] In the initial state:

[0027] The rotating block 28 is locked by the No. 1 locking screw 29 , the spring 37 is in a compressed state, the rotating plate 32 is farthest from the fixed block 36 , the electric push rod 26 is in a fully retracted state, and the No. 2 locking screw 44 locks the No. 2 slider 42 .

[0028] When the user needs to use the present invention, the user is required to move the placement board 17 to one side of the operating table, let the patient lie on the operating table, place the patient's limb that needs nerve block on the placement board 17, and place the part that needs puncture on the end of the placement board 17 facing the connecting plate 21, so that the part to be punctured is not within the range of the placement board 17 but is below the connecting plate 21. After the patient adjusts his posture, the user is required to start the puncture auxiliary mechanism 61 through the operating table 14.

[0029] After the puncture assisting mechanism 61 is started, the user needs to manually rotate the No. 1 rocker 24. After the No. 1 rocker 24 is rotated, it will drive the limit rod 23 to rotate. The rotation of the limit rod 23 will drive the gear 48 on the limit rod 23 to rotate through the slide slot 46, thereby driving the two gears 48 to rotate under the action of the mutual engagement of the gears 48, thereby driving the two electric push rods 26 to rotate, thereby adjusting the angle between the two electric push rods 26, and then the user needs to manually rotate the No. 1 locking screw 29. After the No. 1 locking screw 29 is rotated, the No. 1 locking screw 29 no longer resists the rotating block 28, and the rotating block 28 can rotate freely, thereby adjusting the ultrasonic probe 3 9, and at the same time, the motor 31 is driven to start through the operating table 14. After the motor 31 is started, its motor shaft will drive the rotating plate 32 to rotate, so that the angle adjustment of the ultrasonic probe 39 is completed through the rotation of the rotating plate 32 and the rotation of the rotating block 28. After the angle adjustment is completed, the user manually tightens the No. 1 locking screw 29, so that the No. 1 locking screw 29 is against the rotating block 28 to complete the locking of the rotating block 28, and then starts the electric push rod 26 through the operating table 14. The electric push rod 26 starts to extend after it is started. When the electric push rod 26 is extended to a suitable length (that is, the probe side of the ultrasonic probe 39 can contact the part of the human body that needs ultrasonic guidance), The driving of the electric push rod 26 can be stopped, and the user further manually rotates the first rocker 24, thereby changing the angle between the two electric push rods 26 by rotating the first rocker 24, so that the probe end of the ultrasonic probe 39 that has completed the angle adjustment is completely in contact with the surface skin of the patient's nerve block site, and then the angle between the electric push rods 26 is further adjusted, so that the rotating plate 32 slides on the slide plate 35 toward the fixed block 36, and the spring 37 is further compressed. At this time, the pressure sensor 33 is subjected to a certain pressure, and the value is stable, and then the rotation of the first rocker 24 can be stopped, and then the user manually rotates the second rocker 25 by observing the display screen 15. , the rotation of the second rocker 25 will drive the screw 22 to rotate, thereby driving the slide 47 to move through the threaded transmission of the screw 22 and the slide 47, thereby adjusting the position of the ultrasonic probe 39, and further adjusting the probe position of the ultrasonic probe 39, so as to better guide the ultrasound, so that the ultrasonic probe 39 is above the puncture site, and then the user drives the electric slider 20 to slide through the operating table 14, and marks the puncture site on the display screen 15. After the electric slider 20 is started, it will slide on the arc-shaped slide rail 19, and when the electric slider 20 starts to slide, it will drive the ultrasonic probe 39 to move, and because the limbs targeted are cylindrical bodies such as upper limbs, lower limbs, trunk and neck,When the electric slider 20 slides, the probe end of the ultrasonic probe 39 may not necessarily contact the patient's skin surface. At this time, the spring 37 will push the fixed block 36 to move the ultrasonic probe 39 toward the patient's skin surface, and its probe end continues to contact the patient's surface, thereby ensuring stable detection of the ultrasonic probe 39 when the electric slider 20 moves. When the electric slider 20 completes the rotation, the distance from the skin surface to the marked puncture point measured by the ultrasonic probe 39 will be recognized by the module in the console 11, so that the electric slider 20 moves automatically under the action of the console 11 to one of the ultrasonic probes 39. When the distance to the puncture point is the shortest, the electric slider 20 will stop moving. At this time, the user determines the corresponding ultrasonic probe 39 and manually rotates the No. 2 locking screw 44 on the corresponding ultrasonic probe 39 so that the No. 2 locking screw 44 no longer locks the corresponding No. 2 slider 42. The user moves the No. 2 slider 42 according to personal judgment, adjusts the No. 2 slider 42 to a suitable angle, re-tightens the No. 2 locking screw 44, inserts the puncture needle into the limiting groove 43 and inserts it into the patient's body to complete the nerve block puncture. After use, pull out the puncture needle and drive the electric push rod 26 to fully retract through the operating table 14.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasound-guided nerve block auxiliary stent, comprising a puncture auxiliary mechanism (61) arranged in the arc-shaped slide rail (19), characterized in that: The puncture auxiliary mechanism (61) comprises an electric slider (20) slidably arranged in the arc-shaped slide rail (19), the electric slider (20) is fixedly connected to the connecting plate (21), a screw rod (22) is rotatably arranged in the connecting plate (21), a limit rod (23) is also rotatably arranged in the connecting plate (21), the screw rod (22) and the corresponding slide plate (47) are spirally driven, the two slide plates (47) are fixedly connected, a pair of gears (48) are rotatably arranged in the slide plate (47), the two gears (48) are meshed and driven, and a slide groove (46) is arranged on the limit rod (23). ), the gear (48) on the limit rod (23) is slidably connected to the slide groove (46), one end of the limit rod (23) is fixedly provided with a No. 1 rocker (24), the end of the screw rod (22) away from the No. 1 rocker (24) is fixedly provided with a No. 2 rocker (25), one end of each gear (48) is fixedly provided with a connecting plate (49), the connecting plate (49) is fixedly connected to the fixed end of the corresponding electric push rod (26), the telescopic end of the electric push rod (26) is fixedly connected to the corresponding connecting block (27), and a rotating block (28) is rotatably provided in the connecting block (27), A pair of fixed plates (30) are fixedly provided at one end of the rotating block (28) away from the connecting block (27), and a pair of rotating plates (32) are rotatably provided on the fixed plate (30), a pressure sensor (33) is fixedly provided on one of the rotating plates (32), and a first slider (34) is fixedly provided at one end of the pressure sensor (33) away from the rotating plate (32) attached thereto, and the pressure sensor (33) is slidably provided in a slide rail plate (35), and the other rotating plate (32) in the same pair is also slidably provided in the corresponding slide rail plate (35), and the slide rail plate (35) is rotatably provided with the pair of rotating plates (32). The fixed block (36) is fixedly connected to the corresponding fixed block (36), and a spring (37) is fixedly provided between the fixed block (36) and the rotating plate (32) (the first slider (34)). The fixed block (36) is fixedly connected to the corresponding ultrasonic probe (39). An angle adjustment plate (40) is also fixedly provided on the fixed block (36). A first slide rail (41) is provided in the angle adjustment plate (40). A second slider (42) is slidably provided in the first slide rail (41). A second slide rail (45) is also provided on the angle adjustment plate (40). A limiting groove (43) is provided in the second slider (42).

2. The ultrasound-guided nerve block auxiliary stent according to claim 1, characterized in that: A No. 1 locking screw (29) is also threadedly connected to the connection block (27), and a motor (31) is fixed between the fixing plates (30).

3. The ultrasound-guided nerve block auxiliary stent according to claim 2, characterized in that: The motor shaft of the motor (31) is fixedly connected to the corresponding rotating plate (32), and a second locking screw (44) is rotatably provided on the second slider (42), and the second locking screw (44) and the second slider (42) are spirally driven.

4. The ultrasound-guided nerve block auxiliary stent according to claim 1, characterized in that: Scale blocks (51) are fixedly arranged at equal intervals on one end of the angle adjustment plate (40) away from the second locking screw (44), and a scale needle (50) is fixedly arranged on one end of the second sliding block (42) facing the scale block (51).

5. The ultrasound-guided nerve block auxiliary stent according to claim 1, characterized in that: The arc-shaped slide rail (19) is fixedly connected to the connecting rod (18), the other end of the connecting rod (18) is fixedly connected to the placement plate (17), and the handle end of the ultrasonic probe (39) is fixedly connected to the connecting line (38).

6. The ultrasound-guided nerve block auxiliary stent according to claim 5, characterized in that: The other end of the connecting line (38) is fixedly connected to a corresponding plug (16), and the plug (16) is inserted into the console (11).

7. The ultrasound-guided nerve block auxiliary stent according to claim 6, characterized in that: An operating table (14) is fixedly provided on the console (11), a display screen (15) is also fixedly provided on the console (11), and a connecting frame (12) is rotatably provided below the console (11).

8. The ultrasound-guided nerve block auxiliary stent according to claim 7, characterized in that: Universal wheels (13) are equidistantly arranged and rotatably provided on the connecting frame (12).

Images