Ultrasonic-guided multi-degree-of-freedom adjusting auxiliary device for blood vessel puncture

Abstract

The invention relates to the technical field of blood vessel puncture, in particular to an ultrasound-guided blood vessel puncture multi-degree-of-freedom adjusting auxiliary device which comprises a first attaching belt, a rubber belt and a second attaching belt, the first attaching belt is arranged on one side of the rubber belt, a limiting frame is fixedly connected to the other side of the rubber belt, and the second attaching belt is arranged at the lower end of the limiting frame in a limiting mode. An auxiliary adjusting structure is fixedly arranged at the upper end of the limiting frame; the auxiliary adjusting structure is used for multi-angle adjustment of the puncture needle, the puncture needle is communicated with the connecting unit, the telescopic adjusting rod changes the height of the puncture needle, the fixed combined connecting rod drives the telescopic adjusting rod to conduct transverse adjustment, the transverse position of the puncture needle is changed, the gear is matched, the fixed combined connecting rod is rotationally connected on the upper portion, and the angle of the puncture needle is changed. And the supporting unit is used for supporting and protecting the telescopic adjusting rod, and the connecting unit is designed to be separable. Through the arrangement of the structure, blood vessel puncture work is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of vascular puncture, and in particular to a multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance. Background Art

[0002] Traditional vascular puncture is mainly performed blindly based on anatomical positioning. However, in clinical practice, when encountering anatomical variations, poor vascular conditions, etc., ultrasound-guided vascular puncture gradually reveals its advantages and necessity. Using ultrasound guidance during vascular puncture can not only clearly see the vascular structure and adjacent structures such as nerves and muscles around the blood vessels, but also quickly identify the blood vessels, thereby achieving the purpose of improving the success rate of puncture, shortening the puncture time, and avoiding serious complications.

[0003] According to Chinese patent publication number CN116473636A, an ultrasound-guided vascular puncture device and method thereof are disclosed. By setting a rotating shaft, a guide block, a guide hole, a puncture needle and an auxiliary mechanism, the rotating shaft can drive the guide block to rotate along the limit groove, and the device can be used in accordance with different acupuncture sites of the patient, and the inclination angle of the guide block can be accurately adjusted. The guide hole supports and limits the puncture needle, improves the stability of the needle insertion, and avoids the puncture needle from deflecting during the needle insertion process. The inner walls of the clamping block 1 and the clamping block 2 fit with the outer wall of the puncture needle, thereby fixing the position of the puncture needle, avoiding the puncture needle from deflecting due to pulling, improving the stability of the puncture needle when it contacts the lesion, and avoiding the shaking of the needle sheath when the needle core is removed. The output shaft of the motor can drive the winding roller to rotate, and the rope is wound on the winding roller. The rope wound on the winding roller drives the needle core to separate from the needle sheath, so that only one acupuncturist is needed to complete the puncture process, thereby improving the simplicity of operation and saving manpower.

[0004] At present, the existing ultrasound-guided vascular puncture assist device and the above-mentioned case cannot be adjusted at multiple angles during use, are inflexible during use, and cannot achieve the purpose of quickly adjusting the limit. Therefore, improvements are made to address the above-mentioned problems. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a multi-degree-of-freedom adjustment auxiliary device for blood vessel puncture under ultrasound guidance, comprising a first fitting belt, a rubber belt and a second fitting belt, one side of the rubber belt is provided with the first fitting belt, the other side of the rubber belt is fixedly connected with a limiting frame, the lower end of the limiting frame is limited by the second fitting belt, and the upper end of the limiting frame is fixedly provided with an auxiliary adjustment structure; The auxiliary adjustment structure is used for multi-angle adjustment of the puncture needle. The puncture needle penetrates through the connection unit. The telescopic adjustment rod changes the height of the puncture needle, and the fixed combined connecting rod drives the telescopic adjustment rod for lateral adjustment to change the lateral position of the puncture needle. The fixed combined connecting rod is rotatably connected above through a gear to change the angle of the puncture needle, and is limited by a semi-toothed disc. The support unit is used for the support and protection of the telescopic adjustment rod, and the connection unit adopts a separable design.

[0007] Specifically, the auxiliary adjustment structure includes a puncture needle and an auxiliary adjustment component. The puncture needle is inserted and limited on the auxiliary adjustment component, and the puncture needle can slide and adjust on the auxiliary adjustment component.

[0008] Specifically, the auxiliary adjustment component includes a support mechanism and a control mechanism. The support mechanism is rotatably connected to the control mechanism. The support mechanism includes a connection unit, a mating gear, a telescopic adjustment rod, and a hinge shaft. The telescopic adjustment rod is fixedly arranged on the mating gear. The upper end of the telescopic adjustment rod is hinged with the connection unit, and the middle part of the telescopic adjustment rod is fixedly provided with the hinge shaft.

[0009] Specifically, the connection unit includes a screwing sleeve, an insertion rod, and an adapter groove block. One side of the adapter groove block is inserted into the first docking shaft, and the other side of the adapter groove block is inserted and arranged with the second docking shaft. An insertion rod is also fixedly arranged on the adapter groove block. The insertion rod is screwed through the screwing sleeve so that the insertion rod is limited and fixed with the second docking shaft. A rotating connecting rod is fixedly connected to the first docking shaft.

[0010] Specifically, the control mechanism includes a fixed platform and an adapter fixing block. The adapter fixing block is fixedly arranged at the lower end of the fixed platform. The upper end of the fixed platform is fixedly connected with a first track frame. The upper end of the first track frame is fixedly connected with a second track frame. A limiting unit is slidably arranged on the first track frame and the second track frame, and a support unit is fixedly connected to the center side end of the fixed platform.

[0011] Specifically, the support unit includes a fixed hinge seat. A hydraulic driven rod is hinged on the fixed hinge seat, and a hinge mating rod is hinged on the hydraulic driven rod.

[0012] Specifically, the limiting unit includes an arc guide frame and a fixed combined connecting rod. The fixed combined connecting rod is fixedly connected to the center of the arc guide frame. A first connecting oil pipe is arranged at the front end of the fixed combined connecting rod. A pressing seat is telescopically connected to the first connecting oil pipe. A second hydraulic seat is communicated with the upper end of the first connecting oil pipe. An elastic limiting telescopic block is telescopically connected to the rear end of the second hydraulic seat.

[0013] Specifically, an adapter block is fixedly connected to the top of the arc-shaped guide frame. A first hydraulic seat is fixedly installed on the adapter block. The lower end of the first hydraulic seat controls the telescopic adjustment of the semi-toothed disc. A steel wire rope is provided on the first hydraulic seat. The lower end of the steel wire rope is directly connected to the semi-toothed disc. The other side of the steel wire rope penetrates through the mating communication seat, and the steel wire rope is fixed to the trigger seat.

[0014] Specifically, the mating gear is rotatably connected to the fixed combined connecting rod. The puncture needle penetrates through the central groove of the adapter slot block. The hinge shaft is fixedly connected to the hinge mating rod. The fixed hinge seat is fixedly connected to the fixed table. The fixed table is fixedly connected to the limiting frame through the adapter fixing block.

[0015] Specifically, by lifting the trigger seat, the steel wire rope is driven to move, so that the steel wire rope drives the semi-toothed disc to move upward. The semi-toothed disc meshes with the mating gear. By lifting, the limit of the mating gear is eliminated. The rotating connecting rod and the telescopic adjustment rod are rotatably arranged. The first connecting oil pipe and the fixed combined connecting rod slide on the first track frame. The elastic limit telescopic block is connected to the second track frame in a limiting manner.

[0016] Advantages of the present invention: First, through the settings of the first fitting belt, rubber belt, second fitting belt, and limiting frame, the fixing work is facilitated. The first fitting belt and the second fitting belt can be connected and fixed to carry out winding and limiting work. The limiting frame supports the auxiliary adjustment structure to ensure the horizontal position of the auxiliary adjustment structure. The auxiliary adjustment components in the auxiliary adjustment structure are used for limiting the puncture needle, so that the puncture needle can perform position adjustment work at multiple angles. The mating gear can rotate on the fixed combined connecting rod to change the angles of the telescopic adjustment rod, hinge shaft, and connecting unit, so that the connecting unit drives the puncture needle to perform position adjustment. At the same time, the telescopic adjustment rod can be telescopically adjusted to change the distance between the puncture needle and the mating gear, thereby facilitating more convenient fine adjustment.

[0017] Second, through the setting of the limiting unit, the adjustment of the angle where the puncture needle is located is facilitated, and at the same time, the limiting of the puncture needle is facilitated. When adjustment is required, by lifting the trigger seat, the steel wire rope is driven to move, so that the semi-toothed disc and the first hydraulic seat contract, canceling the meshing connection between the semi-toothed disc and the mating gear. At this time, rotation adjustment can be performed through the mating gear. At the same time, the pressing seat and the fixed combined connecting rod can slide and adjust on the first track frame, greatly changing the horizontal position of the puncture needle. After reaching the appropriate position, the pressing seat can be released, and then it can be limited and fixed through the elastic limit telescopic block and the second track frame. The setting of the support unit enhances the support and protection of the support mechanism. The connecting unit adopts a separable design. The puncture needle passes through the center of the adapter slot block. By rotating the screw sleeve, the connection between the first docking shaft and the second docking shaft can be canceled, thus facilitating the subsequent removal of the first fitting belt, rubber belt, second fitting belt, auxiliary adjustment structure, and limiting frame. Description of the drawings

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the front view angle of the main body in the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the side view angle of the main body in the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the rear view angle of the main body in the present invention; Figure 4 It is a three-dimensional view of the auxiliary adjustment structure in the present invention; Figure 5 It is a three-dimensional view of the auxiliary adjustment component in the present invention; Figure 6 It is a three-dimensional view of the support mechanism in the present invention; Figure 7 It is an exploded view of the connection unit in the present invention; Figure 8 It is a three-dimensional structural diagram of the regulation mechanism in the present invention; Figure 9 It is a three-dimensional structural diagram of the support unit in the present invention; Figure 10 It is a three-dimensional structural diagram of the limit unit in the present invention.

[0020] In the figure: 1 - the first fitting belt, 2 - the rubber belt, 3 - the second fitting belt, 4 - the auxiliary adjustment structure, 5 - the limiting frame, 6 - the puncture needle, 7 - the auxiliary adjustment component, 8 - the support mechanism, 9 - the regulation mechanism, 10 - the connection unit, 11 - the mating gear, 12 - the telescopic adjustment rod, 13 - the hinge shaft, 14 - the screwing sleeve, 15 - the embedding rod, 16 - the adaptor groove block, 17 - the first docking shaft, 18 - the rotating connecting rod, 19 - the second docking shaft, 20 - the support unit, 21 - the limit unit, 22 - the fixed platform, 23 - the adaptor fixing block, 24 - the first track frame, 25 - the second track frame, 26 - the fixed hinge seat, 27 - the hydraulic driven rod, 28 - the hinge mating rod, 29 - the adaptor block, 30 - the first hydraulic seat, 31 - the semi-toothed disc, 32 - the arc guide frame, 33 - the elastic limit telescopic block, 34 - the second hydraulic seat, 35 - the first connecting oil pipe, 36 - the pressing seat, 37 - the fixed combined connecting rod, 38 - the steel wire rope, 39 - the mating connecting seat, 40 - the trigger seat. Specific embodiments

[0021] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solution in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0022] The following further illustrates the present invention in conjunction with the accompanying drawings. Embodiment

[0023] As Figures 1-10 shown, the multi-degree-of-freedom adjustment assistance device for vascular puncture under ultrasonic guidance of the present invention includes a first fitting band 1, a rubber band 2, and a second fitting band 3. A first fitting band 1 is provided on one side of the rubber band 2, a limiting frame 5 is fixedly connected to the other side of the rubber band 2, a second fitting band 3 is limitedly provided at the lower end of the limiting frame 5, and an auxiliary adjustment structure 4 is fixedly provided at the upper end of the limiting frame 5; The auxiliary adjustment structure 4 is used for multi-angle adjustment of the puncture needle 6. The puncture needle 6 penetrates through the connection unit 10. The telescopic adjustment rod 12 changes the height of the puncture needle 6, and the fixed combined connecting rod 37 drives the telescopic adjustment rod 12 to horizontally adjust, changing the horizontal position of the puncture needle 6. The fixed combined connecting rod 37 is rotatably connected above in cooperation with the gear 11 to change the angle of the puncture needle 6, and is limited by the semi-toothed disc 31. The support unit 20 is used for the support and protection of the telescopic adjustment rod 12, and the connection unit 10 adopts a separable design.

[0024] The auxiliary adjustment structure 4 includes a puncture needle 6 and an auxiliary adjustment component 7. The puncture needle 6 is inserted and limited on the auxiliary adjustment component 7, and the puncture needle 6 can slide and adjust on the auxiliary adjustment component 7. First, it is wound through the second fitting band 3, and then the first fitting band 1 and the second fitting band 3 bond the binding band for limitation. The rubber band 2 can be stretched in cooperation. A limiting frame 5 is provided on the second fitting band 3, and the limiting frame 5 is in a horizontal state. The puncture needle 6 is regulated through the auxiliary adjustment component 7.

[0025] The auxiliary adjustment component 7 includes a support mechanism 8 and a regulation mechanism 9. The support mechanism 8 is rotatably connected to the regulation mechanism 9. The support mechanism 8 includes a connection unit 10, a mating gear 11, a telescopic adjustment rod 12, and a hinge shaft 13. The telescopic adjustment rod 12 is fixedly provided on the mating gear 11. The upper end of the telescopic adjustment rod 12 is hinged with the connection unit 10, and the middle part of the telescopic adjustment rod 12 is fixedly provided with the hinge shaft 13. Through the arrangement of the first fitting belt 1, the rubber belt 2, the second fitting belt 3, and the limiting frame 5, the fixing work is facilitated. The first fitting belt 1 and the second fitting belt 3 can be connected and fixed to carry out winding and limiting work. The limiting frame 5 supports the auxiliary adjustment structure 4 to ensure the horizontal position of the auxiliary adjustment structure 4. Moreover, the auxiliary adjustment component 7 in the auxiliary adjustment structure 4 is used for limiting the puncture needle 6, so that the puncture needle 6 can be adjusted in position at multiple angles. The mating gear 11 can rotate on the fixed combined connecting rod 37 to change the angles of the telescopic adjustment rod 12, the hinge shaft 13, and the connection unit 10, so that the connection unit 10 drives the puncture needle 6 to adjust the position. At the same time, the telescopic adjustment rod 12 can be telescopically adjusted to change the distance between the puncture needle 6 and the mating gear 11, thus making it more convenient for fine adjustment.

[0026] The connection unit 10 includes a screwing sleeve 14, an insertion rod 15, and an adaptor slot block 16. One side of the adaptor slot block 16 is inserted with the first docking shaft 17, and the other side of the adaptor slot block 16 is inserted and arranged with the second docking shaft 19. Moreover, the insertion rod 15 is fixedly provided on the adaptor slot block 16. The insertion rod 15 is screwed through the screwing sleeve 14 so that the insertion rod 15 is limited and fixed to the second docking shaft 19. The first docking shaft 17 is fixedly connected with a rotating connecting rod 18. The puncture needle 6 is inserted into the adaptor slot block 16 for puncture processing work, and the above steps can all be adjusted again to facilitate puncture cooperation. After the puncture is completed, the screwing sleeve 14 is rotated so that the screwing sleeve 14 cancels the pressing contact with the second docking shaft 19. At this time, the first docking shaft 17, the second docking shaft 19, and the adaptor slot block 16 can be separated, thus facilitating the disassembly work of the other components of the auxiliary adjustment structure 4. The adaptor slot block 16 can fit the skin and be fixed with medical tape.

[0027] The regulation mechanism 9 includes a fixed table 22 and an adaptor fixing block 23. The lower end of the fixed table 22 is fixedly provided with the adaptor fixing block 23. The upper end of the fixed table 22 is fixedly connected with a first track frame 24. The upper end of the first track frame 24 is fixedly connected with a second track frame 25. A limiting unit 21 is slidably arranged on the first track frame 24 and the second track frame 25, and a support unit 20 is fixedly connected to the center side end of the fixed table 22.

[0028] The support unit 20 includes a fixed hinge seat 26. A hydraulic follower rod 27 is hinged on the fixed hinge seat 26. An articulated mating rod 28 is hinged on the hydraulic follower rod 27. When the telescopic adjusting rod 12 is adjusted, the support unit 20 at this time follows the adjustment. The articulated mating rod 28 is connected to the articulated shaft 13. The change in the position of the articulated shaft 13 drives the hydraulic follower rod 27 to follow the telescopic adjustment. At the same time, the hydraulic follower rod 27 can be rotationally mated through the fixed hinge seat 26 at the bottom to achieve the angular mating support work, adapt to the fixing of the fixed block 23 and the limiting frame 5 by pressing, and facilitate the installation work.

[0029] The limiting unit 21 includes an arc guide frame 32 and a fixed combined connecting rod 37. A fixed combined connecting rod 37 is fixedly connected to the center of the arc guide frame 32. A first communicating oil pipe 35 is provided at the front end of the fixed combined connecting rod 37. A pressing seat 36 is telescopically connected to the first communicating oil pipe 35. A second hydraulic seat 34 is communicated and provided at the upper end of the first communicating oil pipe 35. An elastic limiting telescopic block 33 is telescopically connected to the rear end of the second hydraulic seat 34. The lifting trigger seat 40 drives the steel wire rope 38 to stretch on the mating communicating seat 39. The steel wire rope 38 can drive the longitudinal position of the semi-toothed disk 31, so that the semi-toothed disk 31 no longer meshes with the mating gear 11. At this time, the user rotates the telescopic adjusting rod 12, so that the telescopic adjusting rod 12 rotates on the fixed combined connecting rod 37 through the mating gear 11 to adjust the angular position. Then, the trigger seat 40 is released. At this time, the first hydraulic seat 30 controls the semi-toothed disk 31 to reset, so that the semi-toothed disk 31 meshes with the mating gear 11 to perform the limiting of the mating gear 11. At this time, the mating gear 11 cannot rotate.

[0030] A mating block 29 is fixedly connected to the top of the arc guide frame 32. A first hydraulic seat 30 is fixedly installed on the mating block 29. The lower end of the first hydraulic seat 30 controls the telescopic adjustment of the semi-toothed disk 31. A steel wire rope 38 is provided on the first hydraulic seat 30. The lower end of the steel wire rope 38 is directly connected to the semi-toothed disk 31. The other side of the steel wire rope 38 penetrates through the mating communicating seat 39. The steel wire rope 38 is fixed to the trigger seat 40. By pressing, the pressing seat 36 is triggered, so that the pressing seat 36 pushes the oil liquid, so that the second hydraulic seat 34 at the upper part of the first communicating oil pipe 35 elongates, changing the position of the elastic limiting telescopic block 33. At this time, the elastic limiting telescopic block 33 is not limited by the second track frame 25 and can be slidably adjusted, changing the position of the whole limiting unit 21 on the first track frame 24 and the second track frame 25. After adjusting to the appropriate position, the pressing seat 36 is released. At this time, the elastic limiting telescopic block 33 resets and can be limited by the second track frame 25 to perform the limiting locking work.

[0031] The mating gear 11 is rotatably connected to the fixed combined connecting rod 37. The puncture needle 6 penetrates through the central groove of the adaptor slot block 16. The hinge shaft 13 is fixedly connected to the hinge mating rod 28. The fixed hinge seat 26 is fixedly connected to the fixed table 22. The fixed table 22 is fixedly connected to the limiting frame 5 through the adaptor fixing block 23.

[0032] By lifting the trigger seat 40, the steel wire rope 38 is driven to move, causing the steel wire rope 38 to drive the half-toothed disk 31 to move upward. The half-toothed disk 31 meshes with the mating gear 11, and the limit of the mating gear 11 is eliminated by lifting. The rotating connecting rod 18 and the telescopic adjusting rod 12 are rotatably arranged. The first connecting oil pipe 35 and the fixed combined connecting rod 37 slide on the first track frame 24. The elastic limit telescopic block 33 is limit-connected to the second track frame 25.

[0033] The working principle is as follows: When in use, first wind the second fitting belt 3, and then the first fitting belt 1 and the second fitting belt 3 bond the binding belt for limiting. The rubber belt 2 can cooperate with stretching. The second fitting belt 3 is provided with a limiting frame 5, and the limiting frame 5 is in a horizontal state. The puncture needle 6 is regulated by the auxiliary adjusting component 7. First, press to trigger the pressing seat 36, so that the pressing seat 36 pushes the oil liquid, causing the second hydraulic seat 34 on the upper part of the first connecting oil pipe 35 to elongate, changing the position of the elastic limit telescopic block 33. At this time, the elastic limit telescopic block 33 is not limited to the second track frame 25 and can slide and adjust, changing the position of the whole limiting unit 21 on the first track frame 24 and the second track frame 25. After adjusting to the appropriate position, release the pressing seat 36. At this time, the elastic limit telescopic block 33 resets and can be limited to the second track frame 25 to perform the limiting and locking work. After that, the user lifts the trigger seat 40. The trigger seat 40 drives the steel wire rope 38 to stretch on the mating connecting seat 39. The steel wire rope 38 can drive the longitudinal position of the half-toothed disk 31, so that the half-toothed disk 31 no longer meshes with the mating gear 11. At this time, the user rotates the telescopic adjusting rod 12, so that the telescopic adjusting rod 12 rotates on the fixed combined connecting rod 37 through the mating gear 11 to adjust the angular position. Then release the trigger seat 40. At this time, the first hydraulic seat 30 controls the half-toothed disk 31 to reset, so that the half-toothed disk 31 meshes with the mating gear 11 to limit the mating gear 11. At this time, the mating gear 11 cannot rotate. When the telescopic adjusting rod 12 is adjusted, the support unit 20 follows the adjustment at this time. The hinge mating rod 28 is connected to the hinge shaft 13. The change in the position of the hinge shaft 13 drives the hydraulic driven rod 27 to follow the telescopic adjustment. At the same time, the hydraulic driven rod 27 can rotate and cooperate through the fixed hinge seat 26 at the bottom to realize the angular cooperation and support work. The adaptor fixing block 23 presses and fixes the limiting frame 5, which is convenient for installation work. The user can adjust the length of the telescopic adjusting rod 12. By lifting the top of the telescopic adjusting rod 12, the length of the telescopic adjusting rod 12 can be changed and adjusted to a preset position. After that, the puncture needle 6 is inserted into the fitting groove block 16 to perform the puncture treatment work. Moreover, the above steps can be adjusted again to facilitate the puncture cooperation. After the puncture is completed, the screwing sleeve 14 is rotated so that the screwing sleeve 14 cancels the squeezing contact with the second docking shaft 19. At this time, the first docking shaft 17, the second docking shaft 19 and the fitting groove block 16 can be separated, thereby facilitating the disassembly work of the other components of the auxiliary adjusting structure 4. The fitting groove block 16 can be attached to the skin and fixed with medical tape to complete the work.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance, characterized in that: The invention comprises a first laminating belt (1), a rubber belt (2) and a second laminating belt (3); the first laminating belt (1) is provided on one side of the rubber belt (2); a limiting frame (5) is fixedly connected to the other side of the rubber belt (2); the second laminating belt (3) is provided at the lower end of the limiting frame (5); and an auxiliary adjustment structure (4) is fixedly provided at the upper end of the limiting frame (5); The auxiliary adjustment structure (4) is used for multi-angle adjustment of the puncture needle (6). The puncture needle (6) is connected to the connection unit (10). The telescopic adjustment rod (12) changes the height of the puncture needle (6). The fixed combination connecting rod (37) drives the telescopic adjustment rod (12) to adjust horizontally, thereby changing the horizontal position of the puncture needle (6). The fixed combination connecting rod (37) cooperates with the gear (11) to rotate upwardly and connect, thereby changing the angle of the puncture needle (6). The semi-toothed disc (31) is used to limit the position. The support unit (20) is used to support and protect the telescopic adjustment rod (12), and the connection unit (10) adopts a detachable design.

2. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 1, characterized in that: The auxiliary adjustment structure (4) comprises a puncture needle (6) and an auxiliary adjustment component (7); the auxiliary adjustment component (7) is provided with the puncture needle (6) at the upper limit position, and the puncture needle (6) can be slidably adjusted on the auxiliary adjustment component (7).

3. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 2, characterized in that: The auxiliary adjustment component (7) comprises a support mechanism (8) and a control mechanism (9); the control mechanism (9) is rotatably connected to the support mechanism (8); the support mechanism (8) comprises a connection unit (10), a matching gear (11), a telescopic adjustment rod (12) and a hinge shaft (13); the matching gear (11) is fixedly provided with the telescopic adjustment rod (12); the upper end of the telescopic adjustment rod (12) is hingedly provided with the connection unit (10); and the middle part of the telescopic adjustment rod (12) is fixedly provided with the hinge shaft (13).

4. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 3, characterized in that: The connection unit (10) comprises a screw sleeve (14), an embedding rod (15) and an adapting slot block (16); one side of the adapting slot block (16) is plugged into a first docking shaft (17); the other side of the adapting slot block (16) is plugged into a second docking shaft (19); an embedding rod (15) is fixedly provided on the adapting slot block (16); the embedding rod (15) is screwed through the screw sleeve (14) so ​​that the embedding rod (15) and the second docking shaft (19) are fixedly fixed; and a rotating connecting rod (18) is fixedly connected to the first docking shaft (17).

5. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 4, characterized in that: The regulating mechanism (9) comprises a fixed platform (22) and an adapting fixed block (23); the adapting fixed block (23) is fixedly provided at the lower end of the fixed platform (22); the first track frame (24) is fixedly connected to the upper end of the fixed platform (22); the second track frame (25) is fixedly connected to the upper end of the first track frame (24); a limiting unit (21) is slidably provided on the first track frame (24) and the second track frame (25); and a supporting unit (20) is fixedly connected to the central side end of the fixed platform (22).

6. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 5, characterized in that: The support unit (20) comprises a fixed hinge seat (26), a hydraulic driven rod (27) is hingedly provided on the fixed hinge seat (26), and a hinged matching rod (28) is hingedly provided on the hydraulic driven rod (27).

7. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 6, characterized in that: The limiting unit (21) comprises an arc-shaped guide frame (32) and a fixed combined connecting rod (37); the center of the arc-shaped guide frame (32) is fixedly connected to the fixed combined connecting rod (37); a first connecting oil pipe (35) is provided at the front end of the fixed combined connecting rod (37); a pressing seat (36) is telescopically connected to the first connecting oil pipe (35); a second hydraulic seat (34) is connected to the upper end of the first connecting oil pipe (35); and an elastic limiting telescopic block (33) is telescopically connected to the rear end of the second hydraulic seat (34).

8. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 7, characterized in that: The top of the arc-shaped guide frame (32) is fixedly connected to an adapter block (29), a first hydraulic seat (30) is fixedly mounted on the adapter block (29), the lower end of the first hydraulic seat (30) controls the telescopic adjustment of the half toothed disc (31), and a steel wire rope (38) is provided on the first hydraulic seat (30), the lower end of the steel wire rope (38) is directly connected to the half toothed disc (31), the other side of the steel wire rope (38) is connected to the matching connecting seat (39), and the steel wire rope (38) is fixed to the trigger seat (40).

9. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 8, characterized in that: The mating gear (11) is rotatably connected to the fixed combined connecting rod (37), the puncture needle (6) is connected to the central groove of the matching groove block (16), the hinge shaft (13) is fixedly connected to the hinged mating rod (28), the fixed hinge seat (26) is fixedly connected to the fixed platform (22), and the fixed platform (22) is fixedly connected to the limiting frame (5) through the matching fixed block (23).

10. The multi-degree-of-freedom adjustment auxiliary device for vascular puncture under ultrasound guidance according to claim 9, characterized in that: The trigger seat (40) drives the steel wire rope (38) to move by pulling, so that the steel wire rope (38) drives the half toothed disc (31) to move upward, and the half toothed disc (31) meshes with the matching gear (11). The limit of the matching gear (11) is eliminated by pulling, and the rotating connecting rod (18) and the telescopic adjustment rod (12) are rotated, the first connecting oil pipe (35) and the fixed combined connecting rod (37) slide on the first track frame (24), and the elastic limit telescopic block (33) is connected to the second track frame (25) in a limit connection.

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