Nerve block anesthesia puncture device under ultrasonic guidance

Abstract

The utility model discloses a nerve block anesthesia puncture device under ultrasonic guidance, which relates to the technical field of medical instruments and comprises an ultrasonic probe, a fixing ring is fixedly connected to the outer side of the ultrasonic probe, a ring groove is formed in the fixing ring, a rotating ring is movably connected to the inside of the ring groove, a connecting rod is fixedly connected to one side of the rotating ring, and the connecting rod is fixedly connected to the other side of the rotating ring. A limiting rod is fixedly connected to one side of the connecting rod, a limiting groove is formed in the limiting rod, and a limiting pipe is slidably connected into the limiting groove; then a puncture needle tube is placed in the fixing frame, a needle head is clamped with a clamping groove, the needle head penetrates through a limiting tube to be punctured into the skin, the angle of a sliding rod can be adjusted in a sliding groove in the limiting groove, and therefore the advancing direction of the needle head is adjusted; pressure is slowly applied to the puncture needle tube through the push-pull rod, the effect of gradually inserting the needle can be achieved, a novice doctor can grasp the needle inserting speed, and potential medical hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a nerve block anesthesia puncture device under ultrasound guidance. Background Art

[0002] Nerve block anesthesia refers to the injection of local anesthetics near the peripheral nerve trunks, which blocks the conduction of nerve impulses and anesthetizes the area controlled by the nerve. Nerve block anesthesia is the injection of local anesthetics around nerve trunks, plexuses, and ganglia to block the conduction of impulses and produce anesthesia in the controlled area. This is called nerve block. Nerve block only requires one injection to obtain a larger anesthetized area, but it may cause serious complications. Therefore, when operating, one must be familiar with the local anatomy and understand the tissues that the needle will pass through, as well as nearby blood vessels, organs, and body cavities. A Chinese patent discloses an ultrasound-guided nerve block anesthesia puncture device (authorization announcement number CN217886138U). This patented technology can rotate the probe adjustment screw on the inner side of the ultrasound probe connecting frame by turning the probe adjustment knob on the outside of the first fixing plate. When the probe adjustment screw rotates, the probe adjustment screw Probe adjustment screw ring 1 and probe adjustment screw ring 2 connected by the threaded connection on the outer side of the rod can drive the probe adjustment slider to slide on the outer side of the probe adjustment screw. When the probe adjustment slider slides, the ultrasonic probe arranged in the middle of the probe adjustment slider can move accordingly. In this way, the ultrasonic probe can be retracted to the deep side position of the puncture device, thereby preventing the ultrasonic probe from interfering with the puncture process. However, the probe and the puncture needle in the above-mentioned are an integrated structure, which makes it inconvenient to adjust the position of the puncture needle. When the puncture needle is inserted into the skin, the puncture angle needs to be adjusted at any time to avoid injuring the nerve. Therefore, a technician in this field provides an ultrasound-guided nerve block anesthesia puncture device to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a nerve block anesthesia puncture device under ultrasound guidance to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A nerve block anesthesia puncture device under ultrasound guidance comprises an ultrasonic probe, wherein a fixing ring is fixedly connected to the outer side of the ultrasonic probe, a ring groove is provided on the fixing ring, a rotating ring is movably connected inside the ring groove, a connecting rod is fixedly connected to one side of the rotating ring, a limiting rod is fixedly connected to one side of the connecting rod, a limiting groove is provided on the limiting rod, a limiting tube is slidably connected inside the limiting groove, a fixing frame is provided on the limiting rod, a servo motor is installed inside the fixing frame, a fixing plate is provided on the lower side of the servo motor, a fixing hole is provided on the fixing plate, a push-pull rod is inserted inside the fixing hole, a threaded screw is fixedly connected to the output end of the servo motor, the threaded screw is spirally connected to the push-pull rod, a puncture needle tube is provided on the lower side of the push-pull rod, a needle is fixedly and through-connected to the lower side of the puncture needle tube, and the needle penetrates into the interior of the limiting tube.

[0006] As a further solution of the utility model: wherein, a handle is fixedly connected to the ultrasonic probe, and an anti-slip sleeve is sleeved on the handle.

[0007] As a further solution of the utility model: wherein, sliding rods are fixedly connected to both sides of the limiting tube, symmetrical sliding grooves are opened inside the limiting groove, and the sliding rods are slidably connected to the sliding grooves, wherein the sliding rods are cylindrical.

[0008] As a further solution of the utility model: wherein the fixing plate is fixedly connected to the fixing frame, wherein the fixing hole is rectangular.

[0009] As a further solution of the utility model: wherein, a spiral groove is opened inside the push-pull rod, and the threaded screw is spirally connected to the spiral groove.

[0010] As a further solution of the utility model: wherein, a slot is provided on the bottom side of the fixing frame, and the needle passes through the slot.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The set ultrasonic probe is pressed at the position that needs to be detected, and then the position that needs to be punctured can be limited by rotating the limit rod to prevent the puncture needle from piercing the wrong position. The puncture position can be positioned by moving the limit tube, and then the puncture needle tube is placed inside the fixed frame, the needle is engaged with the slot, and the needle is inserted into the skin through the limit tube. The sliding rod set can adjust the angle in the slide groove inside the limit groove, so as to adjust the forward direction of the needle. By pressing the switch of the servo motor and slowly applying pressure to the puncture needle tube through the push-pull rod, the needle can be gradually inserted, so that novice doctors can grasp the needle insertion speed and reduce the occurrence of medical risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the fixing ring in the utility model;

[0015] Figure 3 This is a top view schematic diagram of the limit rod structure in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the limit tube in the utility model;

[0017] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0018] 1. Ultrasonic probe; 101. Handle; 2. Fixed ring; 201. Ring groove; 202. Rotating ring; 203. Connecting rod; 204. Limit rod; 205. Limit groove; 206. Limit tube; 207. Sliding rod; 3. Fixed frame; 301. Servo motor; 302. Fixed plate; 303. Fixed hole; 304. Threaded screw; 305. Push-pull rod; 306. Puncture needle tube; 307. Needle; 308. Slot. DETAILED DESCRIPTION

[0019] See also Figures 1 to 4: A device for nerve block anesthesia puncture under ultrasound guidance comprises an ultrasound probe 1, a handle 101 is fixedly connected to the ultrasound probe 1, a non-slip sleeve is sleeved on the handle 101, a fixing ring 2 is fixedly connected to the outer side of the ultrasound probe 1, a ring groove 201 is provided on the fixing ring 2, a rotating ring 202 is movably connected inside the ring groove 201, a connecting rod 203 is fixedly connected to one side of the rotating ring 202, a limiting rod 204 is fixedly connected to one side of the connecting rod 203, by rotating the limiting rod 204, the limiting groove 205 inside the limiting rod 204 can play a role in positioning and marking the skin to be punctured, so that the doctor can know the position where the skin needs to be punctured, and prevent the puncture needle tube 306 from piercing the wrong position, the limiting groove 205 is provided on the limiting rod 204, the limiting groove 205 is internally slidably connected to the limiting tube 206, wherein the puncture position can be positioned by moving the limiting tube 206, and a fixing frame 3 is provided on the limiting rod 204, wherein the fixing frame 3 The fixing frame 3 is a separate body from the limiting rod 204 and needs to be used together. A servo motor 301 is installed inside the fixing frame 3. A fixing plate 302 is arranged on the lower side of the servo motor 301. A fixing hole 303 is opened on the fixing plate 302. The fixing plate 302 is fixedly connected to the fixing frame 3. The fixing hole 303 is rectangular. A push-pull rod 305 is inserted inside the fixing hole 303. The output end of the servo motor 301 is fixedly connected to a threaded screw 304. The threaded screw 304 It is spirally connected to the push-pull rod 305, and a puncture needle tube 306 is arranged on the lower side of the push-pull rod 305. The lower side of the puncture needle tube 306 is fixed and connected with a needle 307. By slowly applying pressure to the puncture needle tube 306 through the push-pull rod 305, the needle can be gradually inserted, so that novice doctors can control the speed of needle insertion and reduce the occurrence of medical risks. A slot 308 is provided on the bottom side of the fixed frame 3, and the needle 307 passes through the slot 308, and the needle 307 passes through the interior of the limiting tube 206.

[0020] Preferably, sliding rods 207 are fixedly connected to both sides of the limiting tube 206, and a symmetrical sliding groove is opened inside the limiting groove 205, and the sliding rod 207 is slidably connected to the sliding groove, wherein the sliding rod 207 is cylindrical, and the cylindrical sliding rod 207 can adjust the angle and direction inside the sliding groove, wherein the two ends of the sliding rod 207 are cylindrical, and the cylindrical sliding rod 207 can rotate inside the sliding groove, and the sliding rod 207 can also be slidably connected to the sliding groove through a slider, wherein the sliding rod 207 and the slider can be movably connected, and its function is to allow the limiting tube 206 to deflect at a certain angle inside the limiting groove 205.

[0021] Preferably, a spiral groove is provided inside the push-pull rod 305, and the threaded screw 304 is spirally connected to the spiral groove. When the servo motor 301 is working, it will drive the threaded screw 304 to rotate, and when the threaded screw 304 rotates, the push-pull rod 305 will move.

[0022] Working principle: the ultrasonic probe 1 is set and pressed at the position to be detected, and then the position to be punctured can be limited by rotating the limit rod 204 to prevent the puncture needle tube 306 from piercing the wrong position, wherein the puncture position can be positioned by moving the limit tube 206, and then the puncture needle tube 306 is placed inside the fixed frame 3, the needle 307 is engaged with the card slot 308, and the needle 307 is inserted into the skin by passing through the limit tube 206, wherein the sliding rod 207 set can adjust the angle in the slide groove inside the limit groove 205, so as to adjust the forward direction of the needle 307, wherein the switch of the servo motor 301 is pressed, and pressure is slowly applied to the puncture needle tube 306 by the push-pull rod 305, so as to realize the effect of gradual needle insertion, so that novice doctors can grasp the needle insertion speed and reduce the occurrence of medical risks.

[0023] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nerve block anesthesia puncture device under ultrasound guidance, comprising an ultrasound probe (1), characterized in that: The outer side of the ultrasonic probe (1) is fixedly connected to a fixing ring (2), a ring groove (201) is provided on the fixing ring (2), a rotating ring (202) is movably connected inside the ring groove (201), a connecting rod (203) is fixedly connected to one side of the rotating ring (202), a limiting rod (204) is fixedly connected to one side of the connecting rod (203), a limiting groove (205) is provided on the limiting rod (204), a limiting tube (206) is slidably connected inside the limiting groove (205), a fixing frame (3) is provided on the limiting rod (204), and a servo motor is installed inside the fixing frame (3). (301), a fixing plate (302) is arranged at the lower side of the servo motor (301), a fixing hole (303) is opened on the fixing plate (302), a push-pull rod (305) is inserted inside the fixing hole (303), a threaded screw (304) is fixedly connected to the output end of the servo motor (301), the threaded screw (304) is spirally connected to the push-pull rod (305), a puncture needle tube (306) is arranged at the lower side of the push-pull rod (305), a needle (307) is fixedly connected to the lower side of the puncture needle tube (306), and the needle (307) passes through the interior of the limiting tube (206).

2. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: The ultrasonic probe (1) is fixedly connected to a handle (101), and an anti-slip sleeve is sleeved on the handle (101).

3. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: Both sides of the limiting tube (206) are fixedly connected with sliding rods (207), and a symmetrical sliding groove is provided inside the limiting groove (205). The sliding rod (207) is slidably connected with the sliding groove, wherein the sliding rod (207) is cylindrical.

4. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: The fixing plate (302) is fixedly connected to the fixing frame (3), wherein the fixing hole (303) is rectangular.

5. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: A spiral groove is formed inside the push-pull rod (305), and the threaded screw rod (304) is spirally connected to the spiral groove.

6. The ultrasound-guided nerve block anesthesia puncture device according to claim 1, characterized in that: The bottom side of the fixing frame (3) is provided with a slot (308), and the needle (307) passes through the slot (308).

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