Ultrasonic-guided peripheral nerve block anesthesia directional puncture device

Abstract

The invention belongs to the technical field of medical puncture equipment, and particularly discloses an ultrasound-guided peripheral nerve block anesthesia directional puncture device which comprises a first fixing tube, a connecting plate is arranged on the outer side of the first fixing tube, a first motor is arranged above the connecting plate, and a first rotating shaft is arranged at the output end of the first motor. A first gear is arranged on the outer side of the first rotating shaft, a second gear is arranged on the outer side of the first fixing pipe, a connecting ring is arranged below the second gear, a first connecting frame is arranged below the connecting ring, a second fixing pipe is arranged on the inner side of the first connecting frame, and a first electric telescopic rod is arranged on the inner side of the second fixing pipe. An electrode plate is arranged at one end of the first electric telescopic rod, a third fixing pipe is arranged on the inner side of the first connecting frame, a second electric telescopic rod is arranged on the inner side of the third fixing pipe, and an ultrasonic probe is arranged at one end of the second electric telescopic rod; neural stimulation and ultrasonic guidance are combined, and the problem that tiny nerves are difficult to recognize under ultrasonic guidance is effectively solved.

Description

Technical Field

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

[0002] In current medical practice, ultrasound-guided peripheral nerve block anesthesia is widely used due to its high accuracy and few complications. However, in actual operation, especially for the localization and puncture of small nerves, there are still some challenges. Although traditional ultrasound-guided devices can provide real-time ultrasound images, when facing small nerves, due to factors such as image resolution and operator experience, it is often difficult to accurately identify the nerve position, thus increasing the difficulty and risk of puncture. Therefore, in view of the above problems, an ultrasound-guided directional puncture device for peripheral nerve block anesthesia is proposed. By combining nerve stimulation with ultrasound guidance, the position of small nerves is located through nerve stimulation, and then precise puncture is performed under ultrasound guidance, which can effectively solve the problem of difficult identification of small nerves under ultrasound guidance. Summary of the Invention

[0003] In order to overcome the problem that in the process of using a traditional ultrasound-guided directional puncture device for peripheral nerve block anesthesia in daily use, when facing small nerves, due to factors such as image resolution and operator experience, it is often difficult to accurately identify the nerve position, thus increasing the difficulty and risk of puncture.

[0004] The ultrasound-guided directional puncture device for peripheral nerve block anesthesia of the present invention includes a first fixed tube. An air-powered telescopic rod is arranged inside the first fixed tube. One end of the air-powered telescopic rod is provided with an installation tube. A puncture needle is arranged inside the installation tube. A connecting plate is arranged outside the first fixed tube. A first motor is arranged above the connecting plate. The output end of the first motor is provided with a first rotating shaft. A first gear is arranged outside the first rotating shaft. The first gear is keyed to the first rotating shaft. A second gear is arranged outside the first fixed tube. The second gear is connected to the first fixed tube by a bearing. The second gear is meshed with the first gear. A connecting ring is arranged below the second gear. A first connecting frame is arranged below the connecting ring. A second fixed tube is arranged inside the first connecting frame. A first electric telescopic rod is arranged inside the second fixed tube. One end of the first electric telescopic rod is provided with an electrode plate. A third fixed tube is arranged inside the first connecting frame. A second electric telescopic rod is arranged inside the third fixed tube. One end of the second electric telescopic rod is provided with an ultrasound probe.

[0005] When using this ultrasound-guided peripheral nerve block anesthesia directional puncture device, start the first motor to drive the first rotating shaft to rotate. The rotation of the first rotating shaft drives the first gear to rotate, the rotation of the first gear drives the second gear to rotate, the rotation of the second gear drives the connecting ring to rotate, the rotation of the connecting ring drives the first connecting frame to rotate, and the rotation of the first connecting frame adjusts the positions of the ultrasound probe and the electrode patch. Start the first electric telescopic rod to drive the electrode patch to move up and down, so that the electrode patch closely adheres to the patient's skin. Start the second electric telescopic rod to drive the ultrasound probe to move up and down to adjust the distance between the ultrasound probe and the skin. Place the electrode patch near the surface projection position of the target nerve, gradually adjust the position and depth, and energize the electrode patch to stimulate the skin, send an electrical pulse to stimulate the nerve, cause muscle contraction, and thus locate the position of the nerve. It can be applied to small nerves because even if the ultrasound image is not clear, the position of the nerve can be indirectly judged through the muscle contraction reaction. The ultrasound probe is placed near the nerve position determined by the electrode patch, and by adjusting the position of the probe, a clear ultrasound image can be obtained. On the basis of nerve stimulator positioning, the ultrasound probe can be used to further observe the precise position and surrounding structures of the nerve. Under ultrasound guidance, the puncture needle is inserted around the nerve by the telescopic movement of the pneumatic telescopic rod, and anesthetic drugs are injected. Therefore, through the method of combining nerve stimulation and ultrasound guidance, the problem of difficult identification of small nerves under ultrasound guidance can be effectively solved.

[0006] Further, a second connecting frame is provided on one side of the first connecting frame, and a second rotating shaft is provided inside the second connecting frame. During use, the rotation of the second rotating shaft drives the second connecting frame to rotate, and the rotation of the second connecting frame drives the first connecting frame to rotate, so that the angle of the puncture needle can be adjusted.

[0007] Further, a first moving frame is provided on one side of the second connecting frame, and a second motor is provided on one side of the first moving frame. The output end of the second motor is connected to the second rotating shaft. During use, start the second motor to drive the second rotating shaft to rotate.

[0008] Further, a second moving frame is provided on the outside of the first moving frame, and a third motor is provided on one side of the second moving frame. During use, the second moving frame fixes the position of the third motor.

[0009] Further, a first lead screw is provided at the output end of the third motor, and the first lead screw is threadedly connected to the first moving frame. During use, start the third motor to drive the first lead screw to rotate, and the rotation of the first lead screw drives the first moving frame to linearly move, so that the horizontal position of the puncture structure can be adjusted.

[0010] Further, a third moving frame is arranged on the outer side of the second moving frame, and a fourth motor is arranged above the third moving frame. During use, the position of the fourth motor is fixed by the third moving frame.

[0011] Further, a second lead screw is arranged at the output end of the fourth motor, and the second lead screw is in threaded connection with the second moving frame. During use, the second moving frame is driven to move up and down by starting the fourth motor, and the vertical position of the puncture structure can be adjusted by the up and down movement of the second moving frame.

[0012] Further, a fixing frame is arranged on the outer side of the third moving frame, and a fifth motor is arranged on one side of the fixing frame. During use, the position of the fifth motor is fixed by the fixing frame.

[0013] Further, a third lead screw is arranged at the output end of the fifth motor, and the third lead screw is in threaded connection with the third moving frame. During use, the third lead screw is driven to rotate by starting the fifth motor, and the third moving frame is driven to linearly move by the rotation of the third lead screw, so as to drive the puncture structure to move in an axial direction perpendicular to the linear moving direction of the first moving frame in the horizontal position, so as to realize the adjustment of multiple axial positions of the puncture structure.

[0014] Further, a base is arranged below the fixing frame, and an anti-slip pad is arranged below the base. During use, the position of the fixing frame is fixed by the base, and the anti-slip treatment of the device is carried out by the anti-slip pad, so as to improve the stability of the device during use.

[0015] The beneficial effects of the present invention are: Compared with the prior art, in the present invention, the first motor is started to drive the first rotating shaft to rotate. The rotation of the first rotating shaft drives the first gear to rotate. The rotation of the first gear drives the second gear to rotate. The rotation of the second gear drives the connecting ring to rotate. The rotation of the connecting ring drives the first connecting frame to rotate. The position of the ultrasonic probe and the electrode plate is adjusted by the rotation of the first connecting frame. The first electric telescopic rod is started to drive the electrode plate to move up and down, so that the electrode plate is closely attached to the patient's skin. The second electric telescopic rod is started to drive the ultrasonic probe to move up and down, and the distance between the ultrasonic probe and the skin is adjusted. The electrode plate is placed near the body surface projection position of the target nerve, the position and depth are gradually adjusted, and the electrode plate is electrified to stimulate the skin. By sending an electrical pulse to stimulate the nerve, muscle contraction is caused, so as to locate the position of the nerve. It can be applied to fine nerves, because even if the ultrasonic image is not clear, the position of the nerve can be indirectly judged through the muscle contraction reaction. The ultrasonic probe is placed near the nerve position determined by the electrode plate, and by adjusting the position of the probe, a clear ultrasonic image can be obtained. On the basis of the nerve stimulator positioning, the ultrasonic probe can be used to further observe the precise position and surrounding structures of the nerve. Under ultrasonic guidance, the puncture needle is inserted around the nerve through the telescopic movement of the pneumatic telescopic rod, and an anesthetic drug is injected. Therefore, through the method combining nerve stimulation and ultrasonic guidance, the problem of difficult identification of fine nerves under ultrasonic guidance can be effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below.

[0017] Figure 1 It is a schematic diagram of the first three-dimensional structure of a specific embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the second three-dimensional structure of a specific embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of the first partial structure of a specific embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the second partial structure of a specific embodiment of the present invention.

[0021] In the drawings, the structural names represented by the reference numerals are: 1. First fixed tube; 2. Pneumatic telescopic rod; 3. Installation tube; 4. Puncture needle; 5. Connection plate; 6. First motor; 7. First rotating shaft; 8. First gear; 9. Second gear; 10. Connection ring; 11. First connection frame; 12. Second fixed tube; 13. First electric telescopic rod; 14. Electrode plate; 15. Third fixed tube; 16. Second electric telescopic rod; 17. Ultrasonic probe; 21. Second connection frame; 22. Second rotating shaft; 23. First moving frame; 24. Second motor; 25. Second moving frame; 26. Third motor; 27. First lead screw; 28. Third moving frame; 29. Fourth motor; 30. Second lead screw; 31. Fixed frame; 32. Fifth motor; 33. Third lead screw; 34. Base; 35. Anti-slip pad. Detailed implementation manner

[0022] This detailed implementation manner is for an ultrasonic-guided peripheral nerve block anesthesia directional puncture device. Its first three-dimensional structure schematic diagram is as Figure 1 shown, and its second three-dimensional structure schematic diagram is as Figure 2 shown. The ultrasonic-guided peripheral nerve block anesthesia directional puncture device includes a first fixed tube 1. A pneumatic telescopic rod 2 is arranged inside the first fixed tube 1. One end of the pneumatic telescopic rod 2 is provided with an installation tube 3. A puncture needle 4 is arranged inside the installation tube 3. A connection plate 5 is arranged outside the first fixed tube 1. A first motor 6 is arranged above the connection plate 5. The output end of the first motor is provided with a first rotating shaft 7. A first gear 8 is arranged outside the first rotating shaft 7. The first gear 8 is keyway-connected to the first rotating shaft 7. A second gear 9 is arranged outside the first fixed tube 1. The second gear 9 is bearing-connected to the first fixed tube 1. The second gear 9 is meshed with the first gear 8. A connection ring 10 is arranged below the second gear 9. A first connection frame 11 is arranged below the connection ring 10. A second fixed tube 12 is arranged inside the first connection frame 11. A first electric telescopic rod 13 is arranged inside the second fixed tube 12. One end of the first electric telescopic rod 13 is provided with an electrode plate 14. A third fixed tube 15 is arranged inside the first connection frame 11. A second electric telescopic rod 16 is arranged inside the third fixed tube 15. One end of the second electric telescopic rod 16 is provided with an ultrasonic probe 17.

[0023] Wherein, a second connecting frame 21 is provided on one side of the first connecting frame 11, and a second rotating shaft 22 is provided inside the second connecting frame 21. During use, the rotation of the second rotating shaft 22 drives the rotation of the second connecting frame 21, and the rotation of the second connecting frame 21 drives the rotation of the first connecting frame 11, so that the angle of the puncture needle 4 can be adjusted. A first moving frame 23 is provided on one side of the second connecting frame 21, a second motor 24 is provided on one side of the first moving frame 23, and the output end of the second motor 24 is connected to the second rotating shaft 22. During use, starting the second motor 24 drives the second rotating shaft 22 to rotate. A second moving frame 25 is provided outside the first moving frame 23, and a third motor 26 is provided on one side of the second moving frame 25. During use, the position of the third motor 26 is fixed by the second moving frame 25. The output end of the third motor 26 is provided with a first lead screw 27, and the first lead screw 27 is threadedly connected to the first moving frame 23. During use, starting the third motor 26 drives the first lead screw 27 to rotate, and the rotation of the first lead screw 27 drives the first moving frame 23 to linearly move, so that the horizontal position of the puncture structure can be adjusted.

[0024] This specific embodiment is used for an ultrasound-guided peripheral nerve block anesthesia directional puncture device, and its first partial structural schematic diagram is as shown in Figure 3 shown, and its second partial structural schematic diagram is as shown in Figure 4 shown. A third moving frame 28 is provided outside the second moving frame 25, and a fourth motor 29 is provided above the third moving frame 28. During use, the position of the fourth motor 29 is fixed by the third moving frame. The output end of the fourth motor 29 is provided with a second lead screw 30, and the second lead screw 30 is threadedly connected to the second moving frame 25. During use, starting the fourth motor 29 drives the second moving frame 25 to move up and down, and the vertical position of the puncture structure can be adjusted by the up and down movement of the second moving frame 25. A fixing frame 31 is provided outside the third moving frame 28, and a fifth motor 32 is provided on one side of the fixing frame 31. During use, the position of the fifth motor 32 is fixed by the fixing frame 31. The output end of the fifth motor 32 is provided with a third lead screw 33, and the third lead screw 33 is threadedly connected to the third moving frame 28. During use, starting the fifth motor 32 drives the third lead screw 33 to rotate, and the rotation of the third lead screw 33 drives the third moving frame 28 to linearly move, so as to drive the puncture structure to move in an axial direction perpendicular to the linear movement direction of the first moving frame 23 in the horizontal position, so as to realize the adjustment of multiple axial positions of the puncture structure. A base 34 is provided below the fixing frame 31, and an anti-slip pad 35 is provided below the base 34. During use, the position of the fixing frame 31 is fixed by the base 34, and the anti-slip pad 35 is used to anti-slip the device, improving the stability of the device during use.

[0025] When using this ultrasonic-guided peripheral nerve block anesthesia directional puncture device, start the first motor 6 to drive the first rotating shaft 7 to rotate. The rotation of the first rotating shaft 7 drives the first gear 8 to rotate. The rotation of the first gear 8 drives the second gear 9 to rotate. The rotation of the second gear 9 drives the connecting ring 10 to rotate. The rotation of the connecting ring 10 drives the first connecting frame 11 to rotate. The rotation of the first connecting frame 11 adjusts the positions of the ultrasonic probe 17 and the electrode patch 14. Start the first electric telescopic rod 13 to drive the electrode patch 14 to move up and down, so that the electrode patch 14 closely adheres to the patient's skin. Start the second electric telescopic rod 16 to drive the ultrasonic probe 17 to move up and down to adjust the distance between the ultrasonic probe 17 and the skin. Place the electrode patch 14 near the surface projection position of the target nerve, gradually adjust the position and depth, and energize the electrode patch 14 to stimulate the skin. Send an electric pulse to stimulate the nerve and cause muscle contraction, thereby locating the position of the nerve. It can be applied to small nerves because even if the ultrasonic image is not clear, the position of the nerve can be indirectly judged using the muscle contraction response. The ultrasonic probe 17 is placed near the nerve position determined by the electrode patch 14. By adjusting the position of the probe, a clear ultrasonic image can be obtained. On the basis of nerve stimulator positioning, the ultrasonic probe 17 can be used to further observe the precise position and surrounding structures of the nerve. Under ultrasonic guidance, use the telescopic movement of the pneumatic telescopic rod 2 to insert the puncture needle 4 around the nerve and inject anesthetic drugs. Therefore, by combining nerve stimulation and ultrasonic guidance, the problem of difficult identification of small nerves under ultrasonic guidance can be effectively solved.

[0026] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Embodiment

[0028] The present invention provides an ultrasonic-guided peripheral nerve block anesthesia directional puncture device, aiming to solve the problem that it is difficult to accurately identify the nerve position when traditional ultrasonic-guided devices face small nerves; the following are the basic operation steps of the device: Preparation stage: First, fix the device in a suitable position to ensure that the base 34 is stable and the anti-slip pad 35 closely adheres to the ground; then, connect the power supplies of all motors, electric telescopic rods, and the pneumatic telescopic rod 2 to ensure that the device is in a standby state; Adjust the position of the puncture structure: By starting the first motor 6, drive the first rotating shaft 7 and the first gear 8 to rotate, and then drive the second gear 9, the connecting ring 10 and the first connecting frame 11 to rotate, so as to realize the preliminary adjustment of the positions of the ultrasonic probe 17 and the electrode patch 14; Subsequently, use the second motor 24 to adjust the angle of the puncture needle 4 to ensure that the puncture path is consistent with the target nerve; Position the nerve with the electrode patch 14: Press the electrode patch 14 against the patient's skin and place it near the surface projection position of the target nerve; By starting the first electric telescopic rod 13, adjust the depth and position of the electrode patch 14, and at the same time energize and send an electric pulse to stimulate the nerve, causing muscle contraction, so as to indirectly locate the nerve position; Precisely observe with the ultrasonic probe 17: On the basis of the positioning of the electrode patch 14, by starting the second electric telescopic rod 16, adjust the position and distance of the ultrasonic probe 17 to obtain a clear ultrasonic image; Use the ultrasonic image to further observe the precise position of the nerve and the surrounding structures to ensure the accuracy of the puncture; Puncture operation: Under the guidance of ultrasound, through the telescopic movement of the pneumatic telescopic rod 2, accurately insert the puncture needle 4 around the nerve; In addition to the basic operations, the present invention also provides adjustable functions: Multi-axial position adjustment: Through the coordinated work of the third motor 26, the fourth motor 29 and the fifth motor 32, realize the adjustment of the puncture structure in the horizontal, vertical and another horizontal direction (perpendicular to the linear movement direction of the first moving frame 23); This multi-axial adjustment ability enables the device to flexibly adapt to the body types and nerve positions of different patients; Fine adjustment and fixation: During the puncture process, the position of the puncture needle 4 can be finely adjusted by finely adjusting the rotation speed and direction of each motor; At the same time, utilize the stability of the fixing frame 31 and the base 34 to ensure that the device does not shake or displace during the operation.

[0029] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to only the specific implementation manners. Obviously, many modifications and variations can be made according to the content of this specification.

Claims

1. An ultrasound-guided peripheral nerve block anesthesia directional puncture device, comprising a first fixing tube (1), characterized in that: A pneumatic telescopic rod (2) is arranged on the inner side of the first fixed tube (1), a mounting tube (3) is arranged at one end of the pneumatic telescopic rod (2), a puncture needle (4) is arranged on the inner side of the mounting tube (3), a connecting plate (5) is arranged on the outer side of the first fixed tube (1), a first motor (6) is arranged above the connecting plate (5), a first rotating shaft (7) is arranged on the output end of the first motor, a first gear (8) is arranged on the outer side of the first rotating shaft (7), the first gear (8) and the first rotating shaft (7) are key-connected, a second gear (9) is arranged on the outer side of the first fixed tube (1), the second gear (9) is connected to the bearing of the first fixed tube (1), and the second The gear (9) is meshingly connected with the first gear (8); a connecting ring (10) is arranged below the second gear (9); a first connecting frame (11) is arranged below the connecting ring (10); a second fixed tube (12) is arranged inside the first connecting frame (11); a first electric telescopic rod (13) is arranged inside the second fixed tube (12); an electrode sheet (14) is arranged at one end of the first electric telescopic rod (13); a third fixed tube (15) is arranged inside the first connecting frame (11); a second electric telescopic rod (16) is arranged inside the third fixed tube (15); and an ultrasonic probe (17) is arranged at one end of the second electric telescopic rod (16).

2. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 1, characterized in that: A second connecting frame (21) is arranged on one side of the first connecting frame (11), and a second rotating shaft (22) is arranged on the inner side of the second connecting frame (21).

3. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 2, characterized in that: A first moving frame (23) is disposed on one side of the second connecting frame (21), a second motor (24) is disposed on one side of the first moving frame (23), and an output end of the second motor (24) and the second rotating shaft (22) are connected to each other.

4. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 3, characterized in that: A second moving frame (25) is arranged outside the first moving frame (23), and a third motor (26) is arranged on one side of the second moving frame (25).

5. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 4, characterized in that: The output end of the third motor (26) is provided with a first lead screw (27), and the first lead screw (27) is threadedly connected to the first moving frame (23).

6. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 4, characterized in that: A third moving frame (28) is arranged outside the second moving frame (25), and a fourth motor (29) is arranged above the third moving frame (28).

7. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 6, characterized in that: A second lead screw (30) is provided at the output end of the fourth motor (29), and the second lead screw (30) is threadedly connected to the second moving frame (25).

8. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 6, characterized in that: A fixed frame (31) is arranged outside the third movable frame (28), and a fifth motor (32) is arranged on one side of the fixed frame (31).

9. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 8, characterized in that: The output end of the fifth motor (32) is provided with a third lead screw (33), and the third lead screw (33) is threadedly connected to the third moving frame (28).

10. The ultrasound-guided peripheral nerve block anesthesia directional puncture device according to claim 8, characterized in that: A base (34) is provided below the fixing frame (31), and an anti-slip pad (35) is provided below the base (34).

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