Ultrasonic auxiliary positioning device for neck blood vessel

Abstract

The invention belongs to the technical field of medical instruments, and discloses a neck blood vessel ultrasonic auxiliary positioning device which comprises a support, a positioning mechanism is arranged on the outer wall of the top end of the support, and a supporting mechanism is arranged on the outer wall of the bottom end of the support; the supporting mechanism comprises a rotating plate, a hinge rod is hinged to the inner wall of the rotating plate through a supporting rod, a clamping groove is formed in the outer wall of the rotating plate, a moving plate is slidably connected to the outer wall of the rotating plate, a partition plate is elastically connected to the outer wall of the moving plate through a connecting spring, and a handle is fixedly connected to the outer wall of the moving plate. The outer wall of the partition plate is fixedly connected with a clamping block; through cooperation of the rotating plate, the supporting rod and other structures, the rotating plate can be turned over downwards by pulling the inserting block, the supporting rod is driven by the hinge rod to be turned over to make contact with the ground, and therefore the overall stability of the support can be improved, and the problems that the auxiliary positioning device is prone to toppling over and not stable enough due to the impact of external force are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a neck blood vessel ultrasound-assisted positioning device. Background Art

[0002] The neck vascular ultrasound locator is a medical device that is mainly used to locate the neck blood vessels. It uses ultrasound technology to emit ultrasonic waves and receive reflected waves to form an image of the neck blood vessels, helping medical staff to clearly determine the location, direction, shape and other information of the neck blood vessels. It plays an important role in operations such as vascular puncture and surgical guidance, and can effectively improve the accuracy and safety of the operation.

[0003] When medical staff locate the patient's neck blood vessels, they need to hold the ultrasonic probe and contact it with the patient's neck skin, and then detect the blood vessels through ultrasound. In some cases, such as after the vascular lesion site or specific vascular structure has been located, or when it is necessary to continuously observe the blood flow speed, direction change, and whether eddy currents are formed, the probe needs to be placed in a fixed part of the neck for detection. At this time, the probe can be fixed by an auxiliary positioning device so that the medical staff can perform other operations with both hands. Some existing auxiliary positioning devices need to be installed at the bedside for use, and may only be clamped to the bedside by a splint. When it is hit or the bed shakes, it will fall off, affecting the fixation effect of the ultrasonic probe and having poor stability. Therefore, an ultrasonic auxiliary positioning device for neck blood vessels is proposed to address the above problems. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a neck blood vessel ultrasound-assisted positioning device, which solves the problem of poor stability of the existing auxiliary positioning device.

[0005] To achieve the above object, the present invention provides the following technical solution: a neck blood vessel ultrasound-assisted positioning device, comprising a bracket, a top outer wall of the bracket is provided with a positioning mechanism, and a bottom outer wall of the bracket is provided with a supporting mechanism; The supporting mechanism includes a rotating plate, the inner wall of the rotating plate is hinged with a hinge rod through a supporting rod, the outer wall of the rotating plate is provided with a card slot, the outer wall of the rotating plate is slidably connected with a movable plate, the outer wall of the movable plate is elastically connected with a partition through a connecting spring, the outer wall of the movable plate is fixedly connected with a handle, the outer wall of the partition is fixedly connected with a card block, the outer wall of the bracket is fixedly connected with a fixed block, the inner wall of the fixed block is elastically connected with an insertion block through a reset spring, and the inner wall of the rotating plate is provided with a slot.

[0006] Preferably, the rotating plate is rotatably connected to the inner wall of the bottom end of the bracket, and the two ends of the support rod are respectively hinged to the hinge rod and the inner wall of the rotating plate.

[0007] Preferably, the hinge rod is hinged to the inner wall of the rotating plate, the hinge rod is hinged to the outer wall of the movable plate, the clamping block is clamped to the clamping slot, and the movable plate is slidably connected to the outer wall of the handle.

[0008] Preferably, two ends of the connecting spring are fixedly connected to the outer walls of the partition plate and the movable plate respectively, and the insert block is snap-fitted to the slot.

[0009] Preferably, one end of the return spring is fixedly connected to the outer wall of the insert block, the other end of the return spring is fixedly connected to the inner wall of the fixed block, and the insert block is slidably connected to the inner wall of the fixed block.

[0010] Preferably, the positioning mechanism includes a positioning rod, the outer wall of the positioning rod is fixedly connected to a connecting block, the inner wall of the connecting block is elastically connected to a protrusion via a telescopic spring, the inner wall of the positioning rod is rotatably connected to a rotating block, the outer wall of the rotating block is provided with a groove, the outer wall of the rotating block is fixedly connected to an abutment plate, the inner wall of the abutment plate is elastically connected to a trapezoidal block via a compression spring, the inner wall of the abutment plate is slidably connected to a sliding rod, the outer wall of the sliding rod is fixedly connected to a clamping block, the outer wall of the abutment plate contacts an ultrasonic detection head, the inner wall of the bracket is rotatably connected to a threaded rod, and the outer wall of the threaded rod is threadedly connected to an upper fixed plate.

[0011] Preferably, the positioning rod is fixedly connected to the top outer wall of the bracket, one end of the telescopic spring is fixedly connected to the outer wall of the protrusion, and the other end of the telescopic spring is fixedly connected to the inner wall of the connecting block.

[0012] Preferably, the protrusion is slidably connected to the inner wall of the connecting block, the protrusion is engaged with the groove, and the sliding rod is slidably connected to the outer wall of the trapezoidal block.

[0013] Preferably, one end of the compression spring is fixedly connected to the outer wall of the trapezoidal block, and the other end of the compression spring is fixedly connected to the inner wall of the abutment plate.

[0014] Preferably, the upper fixing plate is slidably connected to the inner wall of the bracket, and the outer wall of the trapezoidal block is slidably connected to the inner wall of the abutment plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a combination of structures such as a rotating plate and a supporting rod, and the rotating plate can be flipped downward by pulling the plug block, and after flipping to a vertical state, the plug block is engaged with the slot to fix it, and then the partition plate can be pulled to move the movable plate downward, and the supporting rod can be driven to flip to contact the ground through the hinge rod, thereby improving the overall stability of the bracket, thereby avoiding the problem that the auxiliary positioning device is easily overturned and unstable due to external force collision; The present invention cooperates with structures such as a clamping block and a trapezoidal block, and the angle of the rotating block can be adjusted by toggling a protrusion. When the ultrasonic probe head is fixed between the clamping block and the abutment plate, the angle of the rotating block can be changed to change the angle of the ultrasonic probe head, so as to better contact the patient's neck skin according to actual conditions. The ultrasonic probe head is fixed by a positioning mechanism, and when the blood vessel distribution can be detected at a fixed position on the neck, the medical staff does not need to always pick up the probe head for detection, and can free up both hands for other operations, thereby achieving the effect of auxiliary positioning of the ultrasonic probe head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the supporting mechanism structure of the present invention; Figure 3 It is a schematic diagram of the structure of the frame section and the support mechanism after decomposition of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle; Figure 5 For the present invention Figure 3 The enlarged structural diagram of part B in the middle; Figure 6 It is a schematic diagram of the structure of the bracket and the supporting mechanism of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the bracket of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the abutment plate of the present invention.

[0017] In the figure: 1. bracket; 2. supporting mechanism; 201. rotating plate; 202. card slot; 203. hinged rod; 204. supporting rod; 205. moving plate; 206. connecting spring; 207. partition; 208. handle; 209. card block; 210. fixed block; 211. reset spring; 212. plug block; 213. slot; 3. positioning mechanism; 301. positioning rod; 302. connecting block; 303. telescopic spring; 304. protrusion; 305. rotating block; 306. groove; 307. abutting plate; 308. compression spring; 309. trapezoidal block; 310. sliding rod; 311. clamping block; 4. ultrasonic detection head; 5. threaded rod; 6. upper fixed plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figures 1 to 6 As shown, the present invention provides a cervical blood vessel ultrasound-assisted positioning device, including a bracket 1, a positioning mechanism 3 is provided on the top outer wall of the bracket 1, and a supporting mechanism 2 is provided on the bottom outer wall of the bracket 1; the supporting mechanism 2 includes a rotating plate 201, the inner wall of the rotating plate 201 is hinged with a hinge rod 203 through a supporting rod 204, a card slot 202 is provided on the outer wall of the rotating plate 201, a moving plate 205 is slidably connected to the outer wall of the rotating plate 201, the outer wall of the moving plate 205 is elastically connected to a partition 207 through a connecting spring 206, the outer wall of the moving plate 205 is fixedly connected to a handle 208, the outer wall of the partition 207 is fixedly connected to a card block 209, the outer wall of the bracket 1 is fixedly connected to a fixed block 210, the inner wall of the fixed block 210 is elastically connected to an insert block 212 through a reset spring 211, and a slot 213 is provided on the inner wall of the rotating plate 201.

[0020] The above scheme is adopted: when ultrasonically locating the neck blood vessels, the medical staff needs to contact the surface of the patient's neck with the ultrasonic probe 4, and detect the distribution of the neck blood vessels through ultrasound. The ultrasonic probe 4 is connected to the blood vessel locator, which is a prior art and will not be described in detail here; the bracket 1 can be fixed to the patient's bedside. After the patient lies on the bed, the neck can correspond to the position of the positioning mechanism 3. The medical staff can fix the ultrasonic probe 4 in the positioning mechanism 3, adjust the positioning mechanism 3 to make the ultrasonic probe 4 contact with the patient's neck and locate it, so as to detect the fixed part of the neck, so that the medical staff does not need to take the ultrasonic probe 4 for detection all the time, and can free both hands for other operations such as recording; the support mechanism 2 can provide better support for the bracket 1 to prevent it from falling off from the patient's bedside and affecting the positioning effect of the ultrasonic probe 4; the rotating plate 201 can rotate freely within a certain range at the bottom end of the bracket 1. When it rotates to the inner wall of the bracket 1, it can be folded to reduce the occupied space so that it can be carried. At this time, if Figure 6 As shown; and rotate to the unfolded state, as shown Figure 2 As shown, it can contact with the ground and provide support, ensuring that the bracket 1 can be stably in a suitable working position and maintain the stability of positioning the ultrasonic detection head 4.

[0021] like Figures 2 to 6As shown, the rotating plate 201 is rotatably connected to the inner wall of the bottom end of the bracket 1, and the two ends of the support rod 204 are respectively hinged to the hinge rod 203 and the inner wall of the rotating plate 201; the hinge rod 203 is hinged to the inner wall of the rotating plate 201, the hinge rod 203 is hinged to the outer wall of the movable plate 205, the clamping block 209 is clamped with the clamping slot 202, and the movable plate 205 is slidably connected to the outer wall of the handle 208; the two ends of the connecting spring 206 are respectively fixedly connected to the outer walls of the partition 207 and the movable plate 205, and the plug block 212 is clamped with the slot 213; one end of the reset spring 211 is fixedly connected to the outer wall of the plug block 212, and the other end of the reset spring 211 is fixedly connected to the inner wall of the fixed block 210, and the plug block 212 is slidably connected to the inner wall of the fixed block 210.

[0022] The above scheme is adopted: the support rod 204, the hinge rod 203 and the rotating plate 201 form a stable triangular support structure. When the rotating plate 201 is rotated to a vertical state, the position of the support rod 204 can be adjusted to provide additional supporting force, thereby enhancing the stability of the entire device and preventing it from shaking or tipping over due to external force during use; when the movable plate 205 moves, it can drive the end of the hinge rod 203 connected to it to move, and the other end thereof will flip, thereby driving the support rod 204 to flip; when the movable plate 205 moves downward, the hinge rod 203 will drive the support rod 204 to flip downward and contact the ground, thereby improving stability; and when the movable plate 205 moves upward, the hinge rod 203 and the support rod 204 can be retracted into the inner wall of the rotating plate 201 The card slot 202 is provided with two groups, the upper and lower groups, and the card block 209 is engaged with the card slot 202 to play the role of fixing the position of the movable plate 205. When the movable plate 205 moves up to make the card block 209 engage with the upper card slot 202, the hinge rod 203 and the support rod 204 are retracted, and when it moves down to make the card block 209 engage with the lower card slot 202, the support rod 204 is unfolded; the elastic force of the connecting spring 206 makes the card block 209 always stuck in the card slot 202 for fixing without being affected by external forces, and the operator can hold the handle 208 and pull the partition 207 to drive the card block 209 to move synchronously, so that the card block 209 is out of contact with the card slot 202, and the movable plate 205 can be moved to adjust the support mechanism 2.

[0023] like Figure 5As shown, the plug block 212 is always engaged with the slot 213 under the elastic action of the return spring 211 to fix the position of the rotating plate 201; there are two groups of slots 213, and the angle between the two groups of slots 213 is ninety degrees. When the rotating plate 201 is rotated to the required angle, the plug block 212 will be inserted into the slot 213 under the push of the return spring 211 to prevent the rotating plate 201 from rotating again, thereby ensuring the stability of the supporting mechanism 2; at the same time, when it is necessary to adjust the position of the rotating plate 201, the plug block 212 can be pulled outward to break away from the slot 213 and squeeze the return spring 211, so that the rotating plate 201 can be rotated, and the rotating plate 201 is retracted into the bracket 1. When it is in the unfolded state, the plug block 212 will be engaged with two different groups of slots 213.

[0024] like Figures 7 and 8 As shown, the positioning mechanism 3 includes a positioning rod 301, the outer wall of the positioning rod 301 is fixedly connected to a connecting block 302, the inner wall of the connecting block 302 is elastically connected to a protrusion 304 through a telescopic spring 303, the inner wall of the positioning rod 301 is rotatably connected to a rotating block 305, the outer wall of the rotating block 305 is provided with a groove 306, the outer wall of the rotating block 305 is fixedly connected to an abutment plate 307, the inner wall of the abutment plate 307 is elastically connected to a trapezoidal block 309 through a compression spring 308, the inner wall of the abutment plate 307 is slidably connected to a sliding rod 310, the outer wall of the sliding rod 310 is fixedly connected to a clamping block 311, the outer wall of the abutment plate 307 contacts with an ultrasonic detection head 4, the inner wall of the bracket 1 is rotatably connected to a threaded rod 5, and the outer wall of the threaded rod 5 is threadedly connected to an upper fixed plate 6.

[0025] The above scheme is adopted: the positioning mechanism 3 can provide auxiliary positioning effect for the ultrasonic probe 4. When the medical staff needs to perform other operations and the ultrasonic probe 4 still needs to contact the patient's neck, the ultrasonic probe 4 can be temporarily fixed by the positioning mechanism 3 to keep it in contact with the patient's neck; the positioning rod 301 is fixedly connected to the top outer wall of the bracket 1, providing a stable support base for the entire positioning mechanism 3, and the connecting block 302 is connected to the protrusion 304 through the telescopic spring 303. The elastic force of the telescopic spring 303 can make the protrusion 304 tightly stuck in the groove 306 of the rotating block 305, thereby fixing the rotating block 305. The outer wall of the protrusion 304 is provided with a shift block, and when the shift block is pushed upward, the protrusion 304 can be driven to move synchronously, and the telescopic spring 303 can be squeezed to make the protrusion 304 disengage from the groove 306, and the rotating block 305 can be rotated to adjust the inclination angle of the ultrasonic probe 4 so that it can accurately align with the patient's neck blood vessels, thereby improving the convenience and accuracy of the examination; the abutment plate 307 and the clamping block 311 can be combined to assist in positioning the ultrasonic probe 4, and both are made of rubber material. When the ultrasonic probe 4 is placed between the two, the friction force of the two on the ultrasonic probe 4 is large, so that it will not move.

[0026] like Figures 7 and 8 As shown, the positioning rod 301 is fixedly connected to the top outer wall of the bracket 1, one end of the telescopic spring 303 is fixedly connected to the outer wall of the protrusion 304, and the other end of the telescopic spring 303 is fixedly connected to the inner wall of the connecting block 302; the protrusion 304 is slidably connected to the inner wall of the connecting block 302, the protrusion 304 is engaged with the groove 306, and the sliding rod 310 is slidably connected to the outer wall of the trapezoidal block 309; one end of the compression spring 308 is fixedly connected to the outer wall of the trapezoidal block 309, and the other end of the compression spring 308 is fixedly connected to the inner wall of the abutment plate 307; the upper fixed plate 6 is slidably connected to the inner wall of the bracket 1, and the outer wall of the trapezoidal block 309 is slidably connected to the inner wall of the abutment plate 307.

[0027] The above scheme is adopted: the trapezoidal block 309 is in a certain position and fixed in the abutment plate 307 under the action of the compression spring 308. At this time, the two sets of sliding rods 310 are in contact with the short side inclined surface of the trapezoidal block 309, and the sliding rod 310 and the clamping block 311 are slidably connected with the inner wall of the abutment plate 307, so that the two can only move laterally. The outer wall of the clamping block 311 is provided with an inclined surface, and the ultrasonic detection head 4 can be placed on the inclined surface and pressed in the direction of the abutment plate 307, squeezing the inclined surface and causing the two sets of clamping blocks 311 and the sliding rod 310 to move to both sides, and the sliding rod 310 moves along the short side inclined surface of the trapezoidal block 309 to the long side, so that the trapezoidal block 309 moves downward and squeezes the compression spring 308; when the ultrasonic detection head 4 moves to between the clamping block 311 and the abutment plate 307, it no longer squeezes the clamping block 311, and the compression spring 308 will cause the trapezoidal block 309 to move upward and reset due to its own elastic force, so that the two sets of sliding rods 310 and the clamping block 311 can be pressed together. The block 311 moves toward the middle to fix the ultrasonic probe 4; and when the medical staff presses the trapezoidal block 309 from above the abutment plate 307, the sliding rod 310 and the clamping block 311 can be driven to move to both sides to release the clamping action of the ultrasonic probe 4, so that it can be easily removed to manually detect the distribution of the neck blood vessels, and the operations of fixing and removing the ultrasonic probe 4 are relatively convenient and quick, and there is no need to operate the positioning device by rotating the bolts, thereby improving efficiency; the upper fixing plate 6 and the bracket 1 are in contact with the upper and lower sides of the bed, and the device can be fixed to the side of the bed as a whole; by rotating the threaded rod 5, the upper fixing plate 6 can be driven to move, because the upper fixing plate 6 can only move vertically on the outer wall of the bracket 1, so that the upper fixing plate 6 can be moved up and down by the threaded rod 5, and the bottom outer wall of the upper fixing plate 6 is in contact with the upper side of the bed, and combined with the bracket 1, it can be clamped on the bed for fixation.

[0028] The working principle and use process of the present invention: The medical staff can first move the bracket 1 to the patient's bedside, and by rotating the threaded rod 5, drive the upper fixing plate 6 to move vertically, so that the bracket 1 and the upper fixing plate 6 are in close contact with the upper and lower sides of the bed respectively, so as to fix the device as a whole to the bedside; at this time, the rotating plate 201 is in a retracted state, and the medical staff can pull the plug block 212 outward to make it disengage from the slot 213 and squeeze the return spring 211, and then rotate the rotating plate 201 to a vertical state in contact with the ground. At this time, the plug block 212 is inserted into another set of slots 213 under the push of the return spring 211, so that the position of the rotating plate 201 can be fixed; then hold the handle 208 And pull the partition 207, drive the block 209 to move synchronously, so that the block 209 is out of contact with the upper slot 202, and then move the movable plate 205 downward, and the movable plate 205 drives the support rod 204 to flip downward and contact the ground through the hinge rod 203. When the movable plate 205 moves to the position where the block 209 corresponds to the lower slot 202, release the partition 207, connect the spring 206 to make the block 209 snap into the lower slot 202, and fix the position of the movable plate 205. At this time, the support rod 204, the hinge rod 203 and the rotating plate 201 form a stable triangular support structure, which can enhance the stability of the device.

[0029] Then, the ultrasonic probe 4 can be placed on the inclined surface between the two groups of clamping blocks 311 and pressed toward the abutment plate 307, squeezing the inclined surface to make the two groups of clamping blocks 311 and the slide bar 310 move to both sides, and the slide bar 310 moves along the short side inclined surface of the trapezoidal block 309 to the long side, and the trapezoidal block 309 moves downward and squeezes the compression spring 308; after the ultrasonic probe 4 moves between the clamping block 311 and the abutment plate 307, the compression spring 308 makes the trapezoidal block 309 move upward and reset, driving the slide bar 310 and the clamping block 311 to move toward the middle, and the clamping block 311 and the abutment plate 30 7 can be in contact with the surface of the ultrasonic probe 4. Since both are made of rubber, the friction force on the ultrasonic probe 4 is relatively large, so that the ultrasonic probe 4 can be fixed. After the fixation is completed, the push block on the protrusion 304 can be pushed upward to drive the protrusion 304 to move and squeeze the telescopic spring 303, so that the protrusion 304 is out of contact with the groove 306, and the rotating block 305 is rotated to adjust the inclination angle of the ultrasonic probe 4 to align it with the patient's neck blood vessels, and then the push block is released, and the protrusion 304 is stuck in the groove 306 under the action of the telescopic spring 303 to fix the position of the rotating block 305.

[0030] After the adjustment is completed, the medical staff turns on the vascular ultrasound detection equipment and detects the patient's neck blood vessels through the ultrasound detection head 4. At the same time, both hands can be free for other operations such as recording. There is no need to hold the ultrasound detection head 4 all the time to make it contact with the patient's neck skin for detection. The support mechanism 2 provides a good stability, and the positioning mechanism 3 can position the ultrasound detection head 4; when the medical staff needs to manually detect the distribution of blood vessels in the neck, they press the trapezoidal block 309 from above the abutment plate 307, driving the slide bar 310 and the clamping block 311 to move to both sides, releasing the clamping of the ultrasound detection head 4, and removing the ultrasound detection head 4 to take out the ultrasound detection head 4 for use. The overall operation is relatively convenient, and there is no need to turn the bolts to adjust or fix the positioning device, saving time and effort.

[0031] If the device needs to be folded up, first move the movable plate 205 upwards to disengage the block 209 from the lower slot 202 and snap it into the upper slot 202, fold up the support rod 204 and the hinge rod 203, then pull the plug block 212 outwards, rotate the rotating plate 201 to the inner wall of the bracket 1, loosen the plug block 212, and snap it into the corresponding slot 213, so that the support mechanism 2 can be folded up as a whole to reduce the occupied space; finally, rotate the threaded rod in the opposite direction to disengage the upper fixing plate 6 from the bed, loosen the fixation of the bracket 1 to the bed, and move the device away for storage.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] 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. A neck blood vessel ultrasound-assisted positioning device, comprising a support (1), characterized in that: The top outer wall of the bracket (1) is provided with a positioning mechanism (3), and the bottom outer wall of the bracket (1) is provided with a supporting mechanism (2); The support mechanism (2) comprises a rotating plate (201), the inner wall of the rotating plate (201) being hingedly connected to a hinge rod (203) via a support rod (204), the outer wall of the rotating plate (201) being provided with a clamping groove (202), the outer wall of the rotating plate (201) being slidably connected to a movable plate (205), the outer wall of the movable plate (205) being elastically connected to a partition plate (207) via a connecting spring (206), the outer wall of the movable plate (205) being fixedly connected to a handle (208), the outer wall of the partition plate (207) being fixedly connected to a clamping block (209), the outer wall of the bracket (1) being fixedly connected to a fixed block (210), the inner wall of the fixed block (210) being elastically connected to an insert block (212) via a return spring (211), and the inner wall of the rotating plate (201) being provided with a slot (213).

2. The ultrasonic assisted positioning device for cervical blood vessels according to claim 1, characterized in that: The rotating plate (201) is rotatably connected to the inner wall of the bottom end of the bracket (1), and the two ends of the support rod (204) are respectively hinged to the hinge rod (203) and the inner wall of the rotating plate (201).

3. The ultrasonic-assisted locating device for cervical blood vessels according to claim 1, characterized in that: The hinge rod (203) is hinged to the inner wall of the rotating plate (201), the hinge rod (203) is hinged to the outer wall of the movable plate (205), the clamping block (209) is clamped to the clamping slot (202), and the movable plate (205) is slidably connected to the outer wall of the handle (208).

4. The ultrasonic-assisted locating device for cervical blood vessels according to claim 1, characterized in that: The two ends of the connection spring (206) are respectively fixedly connected to the partition plate (207) and the outer wall of the movable plate (205), and the insert block (212) is snap-fitted to the slot (213).

5. The ultrasonic-assisted locating device for cervical blood vessels according to claim 1, characterized in that: One end of the return spring (211) is fixedly connected to the outer wall of the insert block (212), the other end of the return spring (211) is fixedly connected to the inner wall of the fixed block (210), and the insert block (212) is slidably connected to the inner wall of the fixed block (210).

6. The ultrasonic-assisted locating device for cervical blood vessels according to claim 1, characterized in that: The positioning mechanism (3) comprises a positioning rod (301), the outer wall of the positioning rod (301) is fixedly connected to a connecting block (302), the inner wall of the connecting block (302) is elastically connected to a protrusion (304) via a telescopic spring (303), the inner wall of the positioning rod (301) is rotatably connected to a rotating block (305), the outer wall of the rotating block (305) is provided with a groove (306), and the outer wall of the rotating block (305) is fixedly connected to an abutment plate (307). The inner wall of the abutment plate (307) is elastically connected to a trapezoidal block (309) via a compression spring (308); the inner wall of the abutment plate (307) is slidably connected to a slide rod (310); the outer wall of the slide rod (310) is fixedly connected to a clamping block (311); the outer wall of the abutment plate (307) contacts an ultrasonic detection head (4); the inner wall of the bracket (1) is rotatably connected to a threaded rod (5); and the outer wall of the threaded rod (5) is threadedly connected to an upper fixed plate (6).

7. The ultrasonic-assisted positioning device for cervical blood vessels according to claim 6, characterized in that: The positioning rod (301) is fixedly connected to the outer wall of the top end of the bracket (1), one end of the telescopic spring (303) is fixedly connected to the outer wall of the protrusion (304), and the other end of the telescopic spring (303) is fixedly connected to the inner wall of the connection block (302).

8. The ultrasonic-assisted locating device for cervical blood vessels according to claim 6, characterized in that: The protrusion (304) is slidably connected to the inner wall of the connecting block (302), the protrusion (304) is snap-fitted to the groove (306), and the sliding rod (310) is slidably connected to the outer wall of the trapezoidal block (309).

9. The ultrasonic-assisted locating device for cervical blood vessels according to claim 6, characterized in that: One end of the compression spring (308) is fixedly connected to the outer wall of the trapezoidal block (309), and the other end of the compression spring (308) is fixedly connected to the inner wall of the abutment plate (307).

10. The ultrasonic-assisted positioning device for cervical blood vessels according to claim 6, characterized in that: The upper fixing plate (6) is slidably connected to the inner wall of the bracket (1), and the outer wall of the trapezoidal block (309) is slidably connected to the inner wall of the abutment plate (307).

Images