Ultrasound-guided peripheral nerve block anesthesia directional puncture device

Abstract

The present invention relates to the technical field of medical devices, and discloses an ultrasound-guided peripheral nerve block anesthesia directional puncture device, including a base with a height adjustment component installed, and an annular slide rail installed on the base, wherein the height adjustment component is used to drive the brackets on both sides of the device to move up and down, contact with human skin, and support the human body injection area in the middle of the annular slide rail, and the middle of the annular slide rail is provided with a limit groove 1, and the inner wall and outer wall of the annular slide rail are both provided with a limit groove 2, and a driving component is arranged in the limit groove 1, which is used to drive the injection mechanism to move in an annular manner so that it is located on the same horizontal line as the human body injection site. Through the annular slide rail, the driving component, the height adjustment and the fixing component, the precise annular movement of the injection needle is realized to meet the needs of large-area and multi-point injection, and the needle tip deviation is reduced by combining the pushing and pushing components with auxiliary positioning, thereby improving the stability and accuracy of the anesthesia injection.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to an ultrasound-guided peripheral nerve block anesthesia directional puncture device. Background Art

[0002] Ultrasound-guided peripheral nerve block anesthesia technology is widely used in various surgeries and pain management in clinical practice. Ultrasound equipment is used to guide the needle tip to the vicinity of the target nerve in real time and inject local anesthetics. Compared with traditional blind puncture and nerve stimulation methods, ultrasound guidance significantly improves the accuracy and safety of anesthesia. However, although this technology has made great progress, there are still some limitations and shortcomings in actual operation.

[0003] Existing ultrasound-guided peripheral nerve block anesthesia requires a high level of technical skills from the operator, and requires extensive anatomical knowledge and experience in using ultrasound equipment. Since the position of the needle and ultrasound probe needs to be adjusted in real time, the slightest carelessness may cause the needle tip to deviate or enter the blood vessel by mistake, increasing the risk of anesthesia complications. In addition, the patient's breathing, body position changes, or skin movement can also interfere with the stability of the needle, affect the accurate injection location of the anesthetic, and reduce the anesthesia effect.

[0004] During the operation, ultrasound-guided anesthesia requires constant confirmation of the relative position of nerves and surrounding tissues, which leads to a long operation time, especially in complex or multi-point blockades, which can easily lead to operator fatigue. In addition, because the existing technology is highly dependent on manual operation and lacks the assistance of automated devices, the standardization of anesthesia operations is insufficient, and the stability and repeatability of the results are difficult to guarantee. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an ultrasound-guided peripheral nerve block anesthesia directional puncture device, which solves the problems of unstable needle tip positioning, high operational complexity and lack of automated control in ultrasound-guided peripheral nerve block anesthesia.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an ultrasound-guided peripheral nerve block anesthesia directional puncture device, comprising a base with a height adjustment component installed, and an annular slide rail installed on the base, the height adjustment component is used to drive the brackets on both sides of the device to move up and down, contact with human skin, and support the human injection area in the middle of the annular slide rail, a limiting groove 1 is penetrated in the middle of the annular slide rail, and a limiting groove 2 is provided on the inner wall and the outer wall of the annular slide rail, a driving component is arranged in the limiting groove 1, which is used to drive the injection mechanism to move in a circle so that it is located on the same horizontal line as the injection site of the human body, a positioning component is installed on the outside of the injection mechanism, which is used to contact with the skin around the injection of the human body before injection to tighten the skin of the injection area, and a fixing component is symmetrically arranged on the outside of the annular slide rail, which is used to fix the device on the periphery of the patient.

[0007] Preferably, the two height adjustment components each include a storage cavity, a group of fixed seats are installed on the bottom wall of each storage cavity, an X-shaped gallows 1 is rotatably connected in the middle of each group of fixed seats, X-shaped gallows 2 are rotatably connected at both ends of the top of the X-shaped gallows 1, a mounting seat is installed on the bottom wall of each storage cavity, an electric telescopic rod is rotatably installed in the middle of the mounting seat, a connecting rod is rotatably installed at one end symmetrical to the fixed seat at the bottom of each group of X-shaped gallows 1, a driving end of the electric telescopic rod is fixed to the middle of the connecting rod, a chassis is rotatably installed at one end of the top of the X-shaped gallows 2, a slide groove is opened at the bottom of the chassis, and the other end of the top of the X-shaped gallows 2 is slidably connected inside the slide groove.

[0008] Preferably, the bottom of the bracket is fixed to the top of the chassis, and the top of the bracket is designed with a groove, and its material is silicone.

[0009] Preferably, the driving assembly includes a moving seat, which is arranged outside the annular slide rail, a motor is fixed to the outer wall of the moving seat, the motor driving end is connected to a roller through a columnar connecting piece, the outer wall of the roller is arranged in a limiting groove, and adjustment assemblies are arranged on both sides of the moving seat, which are used to make the moving seat move stably outside the annular slide rail.

[0010] Preferably, the two adjustment components each include a moving rod 1, the outer walls of the two moving rods 1 slide on both sides of the moving seat respectively, the near ends of the two moving rods 1 are fixed with a U-shaped seat, and a limiting wheel is rotated in the middle of each U-shaped seat. A spring 1 is sleeved in the area between the outer U-shaped seat of the moving rod 1 and the moving seat, and the outer walls of the two limiting wheels are respectively in contact with limiting grooves 2 on both sides of the inner wall and outer wall of the annular slide rail.

[0011] Preferably, the injection mechanism comprises a pushing assembly and a pushing assembly, wherein the pushing assembly is used to control the needle tip portion to enter the injection position of the human body, and the pushing assembly is used to control the anesthetic agent to be input into the human body from the needle tip portion.

[0012] Preferably, the pushing assembly includes a second cylinder, an outer wall of the second cylinder is fixed to the outer wall of the movable seat, a second hose is connected to the driving end of the second cylinder, a fixed tube is fixed to the outer wall of the movable seat, the other end of the second hose is connected to the middle of the fixed tube, a second spring is fixed to the inner wall of the fixed tube, a piston is fixed to the other end of the second spring, a connecting rod is fixed to the other side of the piston, and the other end of the connecting rod is connected to the pushing assembly.

[0013] Preferably, the pushing assembly includes an injection tube, the outer wall of which is connected to the end of a connecting rod, a connecting hole is provided on the outer wall of the injection tube, a cylinder 1 is fixed to the outer wall of the movable seat, a hose 1 is connected to the driving end of the cylinder 1, and the hose 1 is detachably connected to the connecting hole, a piston 3 slides in the injection tube, an injection needle is connected to one end symmetrical to the connecting rod, the outer wall of the injection needle is penetrated in the middle of the fixed tube, and a plug is detachably connected to a feed port on the outer wall of the injection tube.

[0014] Preferably, the positioning assembly includes a cylinder three, an outer wall of the cylinder three is fixed to the outer wall of the movable seat, a driving end of the cylinder three is connected to a hose three, a plurality of sleeves are fixed to the outer wall of the movable seat, the plurality of sleeves are surrounded by the outside of the fixed tube, the plurality of sleeves are connected through a connecting tube, the other end of the hose three is connected to the connecting tube, a plurality of springs three are fixed to the inner walls of the sleeves, a plurality of springs three are connected to pistons four at the other ends, a movable rod two is connected to the other side of the piston four, a plurality of movable rods two are connected to a mounting ring at the other end, a limiting cover is fixed to the other side of the mounting ring, a soft cushion is fixed to the other side of the limiting cover, and the injection needle passes through the middle of the soft cushion when moving.

[0015] Preferably, the two fixing components both include mounting rods, and the two mounting rods are both fixed on the annular slide rail by tightening bolt 1 and threaded sleeve, the threaded sleeve is threadedly connected to the outside of tightening bolt 1, a movable square tube is slidably provided on the outer wall of the mounting rod, a plurality of symmetrical threaded holes 1 and threaded holes 2 are respectively provided in the middle of the mounting rod and the threaded sleeve, and the internal threads of one group of threaded holes 1 and threaded holes 2 among the multiple groups of threaded holes 1 and threaded holes 2 are provided with tightening bolt 2, and a clamping block is fixed on the outer wall of the mounting rod, and the clamping blocks on both sides are facing toward the mouth.

[0016] Working principle: When performing ultrasound-guided peripheral nerve block anesthesia on patients, the device needs to be placed below the patient's injection site according to the determined anesthesia injection site, such as the thigh, and the thigh is passed through the middle of the annular slide rail. Then, by loosening and tightening bolt 2, the movable square tube can be movable on the outer wall of the mounting rod. According to the width of the bed on which the patient is lying, the combined length of the mounting rods and the movable square tubes on both sides is adjusted so that the block contacts the outer wall of the bed edge guard frame. By adjusting the length of the mounting rod and the movable square tube, the blocks on both sides of the device are tightly stuck on the bed edge guard frames on both sides. At this time, the device is fixed, and then the height adjustment component is used to control the support of the patient's legs to move up to the center position of the annular slide rail. Then, the driving component is used to control the movable seat to drive the injection needle to move along the outside of the annular slide rail to the same horizontal line of the patient's injection site. When the injection needle is close to the injection site of the patient's leg, cylinder three is then started to generate gas. The air enters into a plurality of sleeves respectively through the hose three and the connecting pipe, and pushes the piston four in the sleeve to move toward the moving rod two. The spring three generates a rebound reaction force, and the moving rod two is pushed synchronously and moved out of the sleeve, so that the mounting ring moves synchronously, driving the limit cover to move toward the outer wall of the patient's skin, so that the cushion contacts the outer wall of the patient, and the skin at the injection site is tightened by squeezing. Then the cylinder two is started, and the gas generated enters the fixed tube through the hose two, and pushes the fixed tube to move toward the injection tube, thereby driving the connecting rod to push the injection tube to move in the fixed tube, so that the injection needle enters the skin at the injection site of the patient. Then the cylinder one is started again, and the gas generated enters the injection tube through the hose one, and pushes the piston three to move in the injection tube toward the injection needle, so that the anesthetic in the area between the piston three and the injection needle enters the patient's body through the injection needle, completing directional anesthesia.

[0017] The present invention provides an ultrasound-guided peripheral nerve block anesthesia directional puncture device, which has the following beneficial effects:

[0018] 1. The present invention uses the annular design of the annular slide rail and cooperates with the drive assembly to enable the injection needle to move in a circle around the patient's injection site, so that the device can adapt to different injection point requirements. The flexibility makes the device particularly suitable for surgeries that require large-area, multi-point injections, such as leg anesthesia.

[0019] 2. The present invention uses a height adjustment component to enable the limb where the patient's injection site is located to be located at the center of the annular slide rail, thereby further ensuring the possibility of the injection needle moving in a circle around the injection limb, while allowing the patient to maintain the best injection position and reducing the risk of needle tip position deviation due to accidental movement or breathing of the patient.

[0020] 3. The present invention designs symmetrical fixing components on both sides of the device so that the device maintains overall stability during the injection process, thereby further ensuring the accuracy of the injection.

[0021] 4. The present invention adopts the design of the pushing component and the pushing component so that the injection mechanism can accurately push (38) into the patient's body. At the same time, an auxiliary positioning component is designed to effectively reduce the needle tip deviation caused by skin movement or relaxation, ensure the stability and consistency of the injection process, solve the problem of manual injection prone to deviation, and improve the stability of the device anesthesia injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the front side of the present invention;

[0023] Figure 2 A three-dimensional diagram of the back side of the present invention;

[0024] Figure 3 An exploded view of the fixing assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure inside the storage cavity of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the height adjustment assembly of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the roller of the present invention;

[0028] Figure 7 It is a schematic diagram of the internal structure of the fixed tube of the present invention;

[0029] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0030] Fig. 9 It is a schematic structural diagram of cylinder 1 of the present invention.

[0031] Among them, 1. base; 2. storage cavity; 3. fixed seat; 4. X-shaped gallows 1; 5. slide groove; 6. X-shaped gallows 2; 7. chassis; 8. bracket; 9. mounting seat; 10. electric telescopic rod; 11. connecting rod; 12. annular slide rail; 13. limit groove 1; 14. limit groove 2; 15. moving seat; 16. motor; 17. roller; 18. moving rod 1; 19. U-shaped seat; 20. limit wheel; 21. spring 1; 22. cylinder 1; 23. hose 1; 24. connecting hole; 25. block; 26. fixed pipe; 27. piston 1; 28. Spring 2; 29. ​​Cylinder 2; 30. Hose 2; 31. Connecting rod; 32. Injection pipe; 33. Piston 3; 34. Plug; 35. Cylinder 3; 36. Hose 3; 37. Connecting pipe; 38. Injection needle; 39. Sleeve; 40. Spring 3; 41. Piston 4; 42. Moving rod 2; 43. Mounting ring; 44. Limit cover; 45. Cushion; 46. Threaded hole 1; 47. Tighten bolt 1; 48. Threaded sleeve; 49. Moving square tube; 50. Threaded hole 2; 51. Tighten bolt 2; 52. Mounting rod. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings 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.

[0033] Please refer to the attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides an ultrasound-guided peripheral nerve block anesthesia directional puncture device, including a base 1 equipped with a height adjustment component, and an annular slide rail 12 installed on the base 1, the height adjustment component is used to drive the brackets 8 on both sides of the device to move up and down, contact with human skin, and support the human body injection area to be located in the middle of the annular slide rail 12, a limiting groove 13 is penetrated in the middle of the annular slide rail 12, and a limiting groove 2 14 is provided on the inner wall and the outer wall of the annular slide rail 12, and a driving component is arranged in the limiting groove 13, which is used to drive the injection mechanism to move in a circular manner so that it is located on the same horizontal line as the injection site of the human body, a positioning component is installed on the outside of the injection mechanism, which is used to contact with the skin around the injection of the human body before injection to tighten the skin of the injection area, and a fixing component is symmetrically arranged on the outside of the annular slide rail 12, which is used to fix the device on the periphery of the patient.

[0034] Please refer to the attached Figure 4 -Attached Figure 5The two height adjustment components include a storage cavity 2, each storage cavity 2 is provided with a set of fixed seats 3 installed on the bottom wall, each set of fixed seats 3 is rotatably connected with an X-shaped gallows 1 4 in the middle, and X-shaped gallows 2 6 are rotatably installed at both ends of the top of the X-shaped gallows 1 4, each storage cavity 2 is provided with a mounting seat 9 on the bottom wall, and an electric telescopic rod 10 is rotatably installed in the middle of the mounting seat 9, and each set of X-shaped gallows 1 4 is provided with a connecting rod 11 rotatably installed at one end symmetrical to the fixed seat 3 at the bottom, and the driving end of the electric telescopic rod 10 is fixed at the middle of the connecting rod 11, and a chassis 7 is rotatably installed at one end of the top of the X-shaped gallows 2 6, and a slide groove 5 is provided at the bottom of the chassis 7, and the other end of the top of the X-shaped gallows 2 6 is slidably connected to the inside of the slide groove 5.

[0035] The bottom of the bracket 8 is fixed to the top of the chassis 7, and the top of the bracket 8 is designed with a groove, and its material is silicone.

[0036] Specifically, taking the injection of anesthesia at the patient's leg injection site as an example, the patient's legs are placed in the annular slide rail 12, and the lower part of the legs will be located on the brackets 8 on both sides of the device. In order to facilitate the injection needle 38 to wrap around the outside of the thigh and flexibly adjust the injection at various injection points on the outside of the thigh, the position of the bracket 8 needs to be adjusted in height through the height adjustment component so that the patient's legs are supported at the center of the annular slide rail 12.

[0037] The operation process of the height adjustment component is as follows:

[0038] The electric telescopic rod 10 is started, driving the X-shaped gallows 1 4 to cross-move, thereby transmitting the X-shaped gallows 2 6 to cross-move synchronously, and through the articulation, the chassis 7 moves up and down under the cross-action of the X-shaped gallows 1 4 and the X-shaped gallows 2 6, so that the bracket 8 moves synchronously and pushes the patient's legs to adjust the height position. In order to ensure the stability of the cross-movement of the X-shaped gallows 2 6, one end of the top of the X-shaped gallows 2 6 slides inside the slide 5, thereby limiting the cross-movement direction of the X-shaped gallows 2 6. The stability of the height adjustment component operation is ensured.

[0039] Please refer to the attached Figure 6 The driving component includes a moving seat 15, which is arranged outside the annular slide rail 12. A motor 16 is fixed to the outer wall of the moving seat 15. The driving end of the motor 16 is connected to a roller 17 through a columnar connecting piece. The outer wall of the roller 17 is arranged in a limiting groove 13. Adjustment components are arranged on both sides of the moving seat 15, which are used to make the moving seat 15 move stably outside the annular slide rail 12.

[0040] Specifically, the motor 16 is started to drive the columnar connector to rotate, driving the roller 17 to roll in the limiting groove 13, thereby driving the moving seat 15 to move along the outside of the annular slide rail 12, so that the injection needle 38 can inject anesthesia at different positions of the patient's leg. The annular design of the annular slide rail 12 makes the injection of the device more flexible and highly automated.

[0041] Please refer to the attached Figure 6 The two adjustment components each include a moving rod 18, the outer walls of the two moving rods 18 slide on both sides of the moving seat 15 respectively, and U-shaped seats 19 are fixed near the ends of the two moving rods 18. A limiting wheel 20 rotates in the middle of each U-shaped seat 19. A spring 21 is sleeved in the area between the outer U-shaped seat 19 of the moving rod 18 and the moving seat 15, and the outer walls of the two limiting wheels 20 are in contact with the limiting grooves 14 on both sides of the inner wall and outer wall of the annular slide rail 12 respectively.

[0042] Specifically, in order to ensure the stability of the movement of the moving seat 15, the present invention also designs adjustment components on both sides of the device. When the moving seat 15 moves, the limiting wheels 20 on both sides slide on the inner wall of the limiting groove 14, and are affected by the arc-shaped design of the inner wall of the limiting groove 14. The limiting wheels 20 will drive the moving rod 18 to slide in the middle of the moving seat 15 through the U-shaped seat 19 according to the obstruction of the inner wall of the limiting groove 14. At the same time, the U-shaped seat 19 squeezes the spring 121 to generate a rebound reaction force. Then, during the sliding process, the reaction pushes the U-shaped seat 19 close to the annular slide rail 12, thereby ensuring that the limiting wheels 20 are in close contact with the inner wall of the limiting groove 14. Through the relative squeezing action on both sides, the firmness of the moving seat 15 moving outside the annular slide rail 12 is achieved.

[0043] Please refer to the attached Figure 7 -Attached Fig. 9 The injection mechanism includes a pushing component and a pushing component. The pushing component is used to control the needle tip part to enter the injection position of the human body, and the pushing component is used to control the anesthetic agent to be input into the human body from the needle tip part.

[0044] The pushing assembly includes a cylinder 29, the outer wall of the cylinder 29 is fixed to the outer wall of the moving seat 15, the driving end of the cylinder 29 is connected to a hose 20, the outer wall of the moving seat 15 is fixed with a fixed tube 26, the other end of the hose 20 is connected to the middle of the fixed tube 26, the inner wall of the fixed tube 26 is fixed with a spring 28, the other end of the spring 28 is fixed with a piston 27, the other side of the piston 27 is fixed with a connecting rod 31, and the other end of the connecting rod 31 is connected to the pushing assembly.

[0045] The pushing assembly includes an injection tube 32, the outer wall of which is connected to the end of the connecting rod 31, the outer wall of which is provided with a connecting hole 24, a cylinder 22 is fixed to the outer wall of the movable seat 15, a hose 23 is connected to the driving end of the cylinder 22, the hose 23 is detachably connected to the connecting hole 24, a piston 33 is slidable in the injection tube 32, an injection needle 38 is connected to one end symmetrical to the connecting rod 31, the outer wall of the injection needle 38 is penetrated through the middle of the fixed tube 26, and a plug 34 is detachably connected to the feed port on the outer wall of the injection tube 32.

[0046] Specifically, when the cushion 45 contacts the patient's skin, the cylinder 29 is activated, and the gas generated enters the fixed tube 26 through the hose 2 30, pushing the piston 1 27 to move in the fixed tube 26 toward the injection tube 32, thereby driving the connecting rod 31 to push the injection tube 32 to move in the fixed tube 26, so that the injection needle 38 enters the skin of the patient's injection site, and then the cylinder 1 22 is activated again, and the gas generated enters the injection tube 32 through the hose 1 23, pushing the piston 33 to move in the injection tube 32 toward the injection needle 38, so that the anesthetic in the area between the piston 33 and the injection needle 38 enters the patient's body through the injection needle 38, completing the directional anesthesia. When the injection is completed, the gas in the injection tube 32 and the sleeve 39 is discharged through the cylinder 1 22 and the cylinder 2 29, and the spring 3 40 stretched in the spring 3 40 rebounds quickly, driving the piston 4 41 to reset, which is convenient for the next use. When the injection tube 32 is taken out from the fixed tube 26, the connecting hole 24 and the hose 23 can be disassembled. The fixed tube 26 is provided with a closing cover for facilitating the removal of the injection tube 32, which is designed as a whole with the fixed tube 26 and is collectively referred to as the fixed tube 26.

[0047] Please refer to the attached Figure 7 The positioning assembly includes a cylinder three 35, the outer wall of the cylinder three 35 is fixed on the outer wall of the moving seat 15, the driving end of the cylinder three 35 is connected to a hose three 36, the outer wall of the moving seat 15 is fixed with a plurality of sleeves 39, the plurality of sleeves 39 surround the outside of the fixed tube 26, the plurality of sleeves 39 are connected through a connecting tube 37, the other end of the hose three 36 is connected to the connecting tube 37, the inner wall of the plurality of sleeves 39 is fixed with a spring three 40, the other end of the plurality of springs three 40 is connected to a piston four 41, the other side of the piston four 41 is connected to a moving rod two 42, the other end of the plurality of moving rods two 42 is connected to a mounting ring 43, the other side of the mounting ring 43 is fixed with a limiting cover 44, the other side of the limiting cover 44 is fixed with a cushion 45, and the injection needle 38 passes through the middle of the cushion 45 when moving.

[0048] Specifically, when the driving assembly controls the moving seat 15 to drive the injection needle 38 to move along the outside of the annular slide rail 12 to the same horizontal line of the patient's injection site, so that the injection needle 38 is close to the injection site of the patient's leg, the cylinder 3 35 is then started, and the gas generated enters into the multiple sleeves 39 through the hose 3 36 and the connecting pipe 37, respectively, pushing the piston 41 in the sleeve 39 to move toward the moving rod 2 42, and the spring 3 40 generates a rebound reaction force, and the synchronous moving rod 2 42 is pushed and moved out of the sleeve 39, so that the mounting ring 43 moves synchronously, driving the limit cover 44 to move toward the outer wall of the patient's skin, so that the soft cushion 45 contacts the outer wall of the patient, and through squeezing, the skin at the skin injection site is tightened. The soft cushion 45 is a soft structure, which will not cause damage to the skin when it contacts the skin. When the injection is completed, the gas in the sleeve 39 can be discharged through the cylinder 3 35, and the stretched spring 3 40 quickly generates a rebound reaction force, thereby driving the injection needle 38 to move out of the patient's body through transmission.

[0049] Please refer to the attached Figure 3 The two fixing components each include a mounting rod 52, and the two mounting rods 52 are fixed to the annular slide rail 12 by tightening bolts 1 47 and threaded sleeves 48. The threaded sleeves 48 are threadedly connected to the outside of the tightening bolts 1 47. A movable square tube 49 is slidably provided on the outer wall of the mounting rod 52. A plurality of symmetrical threaded holes 1 46 and threaded holes 2 50 are respectively provided in the middle of the mounting rod 52 and the threaded sleeves 48. A group of threaded holes 1 46 and threaded holes 2 50 in the plurality of groups of threaded holes 1 46 and threaded holes 2 50 has a tightening bolt 2 51 in its internal thread. A clamping block 25 is fixed to the outer wall of the mounting rod 52, and the clamping blocks 25 on both sides face toward the mouth.

[0050] Specifically, the thigh passes through the middle of the annular slide rail 12, and then the movable square tube 49 is movable on the outer wall of the mounting rod 52 by loosening and tightening the bolt 51. The combined length of the mounting rods 52 and the movable square tube 49 on both sides is adjusted according to the width of the bed on which the patient lies, so that the block 25 contacts the outer wall of the bed edge guard frame. By adjusting the length of the mounting rod 52 and the movable square tube 49, the blocks 25 on both sides of the device are tightly stuck on the bed edge guard frames on both sides. At this time, the device is fixed.

[0051] 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 peripheral nerve block anesthesia directional puncture device, comprising a base (1) equipped with a height adjustment component, and an annular slide rail (12) installed on the base (1), characterized in that: The height adjustment component is used to drive the brackets (8) on both sides of the device to move up and down, contact the human skin, and support the human body injection area to be located in the middle of the annular slide rail (12). A limiting groove (13) is provided in the middle of the annular slide rail (12). The inner wall and the outer wall of the annular slide rail (12) are both provided with a limiting groove (14). A driving component is arranged in the limiting groove (13), which is used to drive the injection mechanism to move in an annular manner so that it is located on the same horizontal line as the injection site of the human body. A positioning component is installed on the outside of the injection mechanism, which is used to contact the skin around the injection of the human body before injection to tighten the skin of the injection area. The outside of the annular slide rail (12) is symmetrically provided with a fixing component, which is used to fix the device on the periphery of the patient.

2. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 1, characterized in that: The two height adjustment components each comprise a storage cavity (2), each storage cavity (2) having a group of fixed seats (3) mounted on the bottom wall thereof, each group of fixed seats (3) having an X-shaped gallows 1 (4) rotatably connected in the middle thereof, the top two ends of the X-shaped gallows 1 (4) having an X-shaped gallows 2 (6) rotatably mounted, a mounting seat (9) mounted at the bottom of each storage cavity (2), an electric telescopic rod (10) rotatably mounted in the middle thereof, a connecting rod (11) rotatably mounted at one end of the bottom of each group of X-shaped gallows 1 (4) symmetrical to the fixed seat (3), a driving end of the electric telescopic rod (10) being fixed at the middle of the connecting rod (11), a chassis (7) rotatably mounted at one end of the top of the X-shaped gallows 2 (6), a slide groove (5) being provided at the bottom of the chassis (7), and the other end of the top of the X-shaped gallows 2 (6) being slidably connected inside the slide groove (5).

3. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 2, characterized in that: The bottom of the bracket (8) is fixed to the top of the chassis (7), and the top of the bracket (8) is designed as a groove, and its material is silicone.

4. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 1, characterized in that: The driving assembly comprises a moving seat (15), the moving seat (15) is arranged outside the annular slide rail (12), a motor (16) is fixed to the outer wall of the moving seat (15), a driving end of the motor (16) is connected to a roller (17) via a columnar connecting piece, the outer wall of the roller (17) is arranged in a limiting groove (13), and adjustment assemblies are arranged on both sides of the moving seat (15), which are used to enable the moving seat (15) to move stably outside the annular slide rail (12).

5. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 4, characterized in that: The two adjustment components each comprise a moving rod (18), the outer walls of the two moving rods (18) respectively slide on both sides of the moving seat (15), the two moving rods (18) are both fixed with a U-shaped seat (19) near the end, each U-shaped seat (19) has a rotationally limited wheel (20) in the middle, a spring (21) is sleeved in the area between the outer U-shaped seat (19) of the moving rod (18) and the moving seat (15), and the outer walls of the two limited wheels (20) respectively contact with the limited grooves (14) on both sides of the inner wall and the outer wall of the annular slide rail (12).

6. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 1, characterized in that: The injection mechanism comprises a pushing assembly and a pushing assembly, wherein the pushing assembly is used to control the needle tip portion to enter the injection position of the human body, and the pushing assembly is used to control the anesthetic agent to be input into the human body from the needle tip portion.

7. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 6, characterized in that: The pushing assembly comprises a second cylinder (29), the outer wall of the second cylinder (29) is fixed to the outer wall of the movable seat (15), the driving end of the second cylinder (29) is connected to a second hose (30), the outer wall of the movable seat (15) is fixed with a fixed tube (26), the other end of the second hose (30) is connected to the middle of the fixed tube (26), the inner wall of the fixed tube (26) is fixed with a second spring (28), the other end of the second spring (28) is fixed with a first piston (27), the other side of the first piston (27) is fixed with a connecting rod (31), and the other end of the connecting rod (31) is connected to the pushing assembly.

8. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 7, characterized in that: The push assembly comprises an injection tube (32), the outer wall of which is connected to the end of a connecting rod (31), the outer wall of which is provided with a connecting hole (24), a cylinder (22) is fixed to the outer wall of the movable seat (15), a hose (23) is connected to the driving end of the cylinder (22), the hose (23) is detachably connected to the connecting hole (24), a piston (33) is slidably arranged inside the injection tube (32), an injection needle (38) is connected to one end of the injection tube (32) symmetrical to the connecting rod (31), the outer wall of the injection needle (38) is penetrated in the middle of the fixed tube (26), and a plug (34) is detachably connected to the feed port of the outer wall of the injection tube (32).

9. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 8, characterized in that: The positioning assembly comprises a cylinder three (35), the outer wall of the cylinder three (35) is fixed to the outer wall of the movable seat (15), the driving end of the cylinder three (35) is connected to a hose three (36), the outer wall of the movable seat (15) is fixed with a plurality of sleeves (39), the plurality of sleeves (39) surround the outside of the fixed pipe (26), the plurality of sleeves (39) are connected to each other through a connecting pipe (37), the other end of the hose three (36) is connected to the connecting pipe (37), and the plurality of sleeves (39) are connected to each other through a connecting pipe (37). A spring three (40) is fixed to the inner wall of the tube (39), the other end of the spring three (40) is connected to a piston four (41), the other side of the piston four (41) is connected to a moving rod two (42), the other end of the moving rod two (42) is connected to a mounting ring (43), a limiting cover (44) is fixed to the other side of the mounting ring (43), a soft cushion (45) is fixed to the other side of the limiting cover (44), and the injection needle (38) passes through the middle of the soft cushion (45) when moving.

10. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 1, characterized in that: The two fixing components both comprise a mounting rod (52), and the two mounting rods (52) are both fixed on the annular slide rail (12) by means of a tightening bolt (47) and a threaded sleeve (48), the threaded sleeve (48) being threadedly connected to the outside of the tightening bolt (47), a movable square tube (49) being slidably disposed on the outer wall of the mounting rod (52), a plurality of symmetrical threaded holes (46) and threaded holes (50) being respectively disposed in the middle of the mounting rod (52) and the threaded sleeve (48), a group of threaded holes (46) and threaded holes (50) among the plurality of groups of threaded holes (46) and threaded holes (50) having internal threads with a tightening bolt (51), a clamping block (25) being fixed on the outer wall of the mounting rod (52), and the clamping blocks (25) on both sides facing each other.

Images