An ultrasound-guided mini-mid-length catheter angle fixator

Abstract

The application discloses an ultrasonic guide mini medium-long catheter angle fixer and relates to the technical field of clinical medicine. The ultrasonic guide mini medium-long catheter angle fixer comprises a laser emitter, the outer wall of the laser emitter is provided with a mounting mechanism, the upper end of the mounting mechanism is fixedly provided with a vertical shaft adjusting mechanism and a horizontal shaft adjusting structure, the upper end of the horizontal shaft adjusting structure is fixedly provided with an adjusting plate, the end, away from the laser emitter, of the horizontal shaft adjusting structure is rotatably provided with a height adjusting mechanism, the two ends of the height adjusting mechanism are slidably provided with adjusting blocks, and the end, away from the laser emitter, of each adjusting block is slidably provided with a clamping block. The front end of the locking bolt is made to enter the inner wall of the locking pin hole through the adjusting plate, the angle of the vertical shaft of the fixer is fixed, the adjusting plate drives the limiting cylinder to slide along the sliding groove, the limiting cylinder is meshed with the adjusting gear, the angle of the horizontal shaft of the fixer is fixed, the angle fixation of the puncture needle and the medium-long catheter is realized, and the positioning precision and the operation efficiency of the puncture needle and the mini medium-long catheter are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of clinical medical technology, and in particular to an ultrasound-guided mini medium-length catheter puncture and positioning device. Background Technology

[0002] Mini-to-long catheters, as a novel intravenous infusion tool, are used in medium- to long-term intravenous therapy due to their ease of operation, long indwelling time, and low complication rate. Ultrasound-guided puncture and positioning of mini-to-long catheters, by combining ultrasound images with the puncture path, can clearly display the vascular structure, course, and relationship with surrounding tissues, helping medical staff to accurately avoid important structures such as nerves and arteries, significantly improving puncture safety and success rate. This technology provides patients with a more efficient and comfortable intravenous treatment plan, while also reducing the operational burden on medical staff, and represents an important direction in the development of modern intravenous therapy.

[0003] Existing positioning devices acquire vascular images via ultrasound probes and transmit them to a display screen. Medical staff manually adjust the puncture angle and depth based on the two-dimensional image on the screen and their own experience to avoid vascular damage and accidental punctures caused by blind punctures. However, in practice, the ultrasound probes of these positioning devices lack precise fixation and adjustment mechanisms, leading to displacement during puncture and changes in the position of the acquired vascular images. The positioning devices only provide planar two-dimensional ultrasound images, making it difficult to intuitively present the three-dimensional spatial structure of the blood vessels. Medical staff struggle to accurately determine the spatial relationship between the puncture point and the blood vessel, and cannot automatically generate the optimal puncture path and parameters based on individual patient differences and vascular characteristics. This results in a lack of precision in selecting puncture points for mini-medium-length catheters, leading to a lower puncture success rate and increased patient discomfort and treatment risks. Therefore, based on the above research and existing mini-medium-length catheters, an ultrasound-guided mini-medium-length catheter angle fixator is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide an ultrasound-guided mini medium-length catheter angle fixator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultrasound-guided mini medium-length catheter angle fixator, comprising a laser emitter, an installation mechanism provided on the outer wall of the laser emitter, a vertical axis adjustment mechanism and a horizontal axis adjustment structure fixedly installed on the upper end of the installation mechanism, an adjustment plate fixedly installed on the upper end of the horizontal axis adjustment structure, a height adjustment mechanism rotatably installed on the end of the horizontal axis adjustment structure away from the laser emitter, adjustment blocks slidably arranged at both ends of the height adjustment mechanism, a locking block slidably installed on the end of the adjustment block away from the laser emitter, a connecting block fixedly installed on the end of the locking block away from the adjustment block, a fixing ring fixedly installed between the connecting blocks, a fixing plate rotatably arranged on the outer wall of the fixing ring, and a needle tube slidably arranged on the inner wall of the fixing ring.

[0006] Furthermore, the height adjustment mechanism includes an adjustment frame, which is slidably disposed on the outer wall of the locking block. A slide rail is provided on the outer wall of the adjustment frame, and an adjustment rack is symmetrically arranged on the inner wall of the slide rail. A spring telescopic block is fixedly installed at the upper end of the locking block, and limit rods are symmetrically installed at both ends of the spring telescopic block.

[0007] Furthermore, a limit block is slidably provided on the inner wall of the fixed ring, and a reset spring block is fixedly installed at the lower end of the limit block.

[0008] Furthermore, the vertical axis adjustment mechanism includes a rotating rod, which is fixedly installed on the inner wall of the adjustment frame. A rotating shaft is rotatably provided on the outer wall of the rotating rod, and a locking pin hole is provided at one end of the rotating rod.

[0009] Furthermore, a locking pin is slidably provided on the inner wall of the locking pin hole, a clamping plate is slidably installed on the outer wall of the locking pin, and an adjusting plate is fixedly installed on the side end of the locking pin.

[0010] Furthermore, an adjusting gear is fixedly installed on the outer wall of the rotating shaft, a sliding groove is provided on the inner wall of the clamping plate, a limiting cylinder is slidably provided on the inner wall of the sliding groove, and the upper end of the limiting cylinder is fixedly connected to the adjusting plate. A spring is fixedly installed on the end of the limiting cylinder away from the adjusting gear, and a disc is fixedly installed on the end of the spring spring away from the limiting cylinder.

[0011] Furthermore, the mounting mechanism includes a mounting ring, which is fixedly mounted on the outer wall of the laser emitter. The upper end of the mounting ring has a mounting pin hole, and a mounting pin is slidably disposed on the inner wall of the mounting pin hole.

[0012] Furthermore, a rubber ring is fitted on the outer wall of the mounting pin, a semi-circular arc plate is fixedly installed on the upper end of the mounting pin, a connecting rod is fixedly installed on the upper end of the semi-circular arc plate, and the other end of the connecting rod is fixedly connected to the disc.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention allows the operator to move the adjusting plate so that the front end of the locking pin enters the inner wall of the locking pin hole, fixing the angle of the vertical axis of the fixator. At the same time, the adjusting plate drives the limiting cylinder to slide along the slide groove, so that the limiting cylinder meshes with the adjusting gear, fixing the angle of the horizontal axis of the fixator. This achieves the fixing of the angle of the puncture needle and the medium-length catheter, significantly improving the accuracy of the positioning of the puncture needle and the mini medium-length catheter and the efficiency of operation.

[0014] 2. This invention allows the operator to press the adjusting block inward, which shortens the spring telescopic block and compresses its internal spring, causing the limiting rod to move away from the adjusting rack, releasing the limitation on the fixing ring. Then, it can move upward or downward to achieve fine adjustment of the needle height, ensuring the accuracy of the movement trajectory and effectively improving the stability of the positioning of the puncture needle and the mini medium-length catheter. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a right view of the overall structure of the present invention; Figure 3 This is an exploded view of the height adjustment mechanism structure of the present invention; Figure 4 This is a schematic diagram of the overall structure of the height adjustment mechanism of the present invention; Figure 5 This is a schematic diagram of the overall vertical and horizontal axis adjustment structure of the present invention; Figure 6 This is a schematic diagram of the vertical axis adjustment mechanism of the present invention; Figure 7 This is a schematic diagram of the horizontal axis adjustment structure of the present invention; Figure 8 This is a schematic diagram of the overall structure of the installation mechanism of the present invention.

[0016] In the diagram: 1. Laser emitter; 101. Needle tube; 102. Mounting ring; 103. Semicircular arc plate; 104. Connecting rod; 2. Height adjustment mechanism; 201. Adjusting block; 202. Fixing ring; 203. Fixing plate; 204. Adjusting rack; 205. Adjusting frame; 206. Spring telescopic block; 207. Limiting rod; 208. Locking block; 209. Connecting block; 210. Limiting block; 211. Return spring block; 212. Slide rail; 3. Mounting mechanism; 304. Mounting pin; 305. Mounting pin hole; 306. Rubber ring; 4. Vertical axis adjustment mechanism; 401. Locking pin; 402. Rotating rod; 403. Locking pin hole; 404. Clamping plate; 405. Rotating shaft; 406. Slide groove; 5. Horizontal axis adjustment structure; 501. Adjusting plate; 502. Adjusting gear; 503. Limiting cylinder; 504. Elastic spring; 505. Disc. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1 to 8 An ultrasound-guided mini medium-length catheter angle fixator includes a laser emitter 1. The outer wall of the laser emitter 1 is equipped with a mounting mechanism 3. The upper end of the mounting mechanism 3 is equipped with a vertical axis adjustment mechanism 4 and a horizontal axis adjustment structure 5 for adjusting and fixing the puncture angle. The horizontal axis adjustment structure 5 includes an adjustment plate 501, which restricts the rotation angle of the vertical axis adjustment mechanism 4 and the horizontal axis adjustment structure 5. Specifically, the vertical axis adjustment mechanism 4 is used to adjust the vertical axis angle of the fixation device, and the horizontal axis adjustment structure 5 is used to adjust the horizontal angle of the fixation device. The vertical axis adjustment mechanism 4 and the horizontal axis adjustment structure 5 are defaulted to restricting rotation. When angle adjustment is needed, the adjustment plate 501 is moved, simultaneously releasing the vertical axis adjustment mechanism 4 and the horizontal axis adjustment structure 5 from limiting the vertical and horizontal axes of the fixator. After angle adjustment, the switch is released, allowing the vertical axis adjustment mechanism 4 and the horizontal axis adjustment structure 5 to restore their limiting positions on the vertical and horizontal axes of the fixator, fixing the current angle and ensuring precise control of the puncture and catheter direction. The horizontal axis adjustment structure 5 is further... A height adjustment mechanism 2 for improving the success rate of puncture is provided at one end away from the laser emitter 1. The height adjustment mechanism 2 includes an adjustment block 201. A locking block 208 is slidably installed at the end of the adjustment block 201 away from the laser emitter 1. A connecting block 209 is fixedly installed at the end of the locking block 208 away from the adjustment block 201. A fixing ring 202 for fixing the puncture needle and catheter is fixedly installed between the connecting blocks 209. A fixing plate 203 is rotatably provided on the outer wall of the fixing ring 202. A needle tube 101 is slidably provided on the inner wall of the fixing ring 202. The procedure involves placing the needle tube 101 inside the fixing ring 202 and fixing it by rotating the fixing plate 203. When the height of the needle tube 101 needs to be adjusted, the adjusting block 201 is pressed inward to release its restriction on the fixing ring 202. Then, the adjusting block 201 is moved up or down. After adjusting the height, the adjusting block 201 is released to restore its restriction on the fixing ring 202, thus achieving fine adjustment of the puncture height and significantly improving the success rate and accuracy of mini medium-length catheter puncture.

[0019] Please see Figures 1-4 The height adjustment mechanism 2 includes an adjustment frame 205, which is slidably mounted on the outer wall of the locking block 208. A slide rail 212 is provided on the outer wall of the adjustment frame 205, and symmetrically arranged adjusting racks 204 on the inner wall of the slide rail 212. A spring telescopic block 206 is fixedly installed at the upper end of the locking block 208. The spring telescopic block 206 is a telescopic block with a spring inside. Limiting rods 207 are symmetrically installed at both ends of the spring telescopic block 206. Specifically, when it is necessary to adjust the height of the needle tube 101... When adjusting, press the adjusting block 201 inward. The adjusting block 201 shortens the spring telescopic block 206 and compresses its internal spring, causing the limiting rod 207 to move away from the adjusting rack 204, thus releasing the limitation on the fixed ring 202. After adjusting the height, release the adjusting block 201. The elasticity of the spring inside the spring telescopic block 206 is restored, pushing the spring telescopic block 206 to extend and causing the limiting rod 207 to approach the adjusting rack 204 and engage with it, restoring the limitation on the fixed ring 202.

[0020] Please see Figures 1-4 A limiting block 210 is slidably provided on the inner wall of the fixing ring 202. A reset spring block 211 is fixedly installed at the lower end of the limiting block 210. The reset spring block 211 is a telescopic block and has a spring inside. Specifically, after the needle tube 101 is sleeved on the inner wall of the fixing ring 202, the fixing plate 203 is rotated so that the fixing plate 203 hits the upper end of the limiting block 210 and the side protrusion of the limiting block 210 is in contact with the needle tube 101. After the reset spring block 211 is hit, it compresses its internal spring. After shortening itself, the spring restores its elasticity and pushes the reset spring block 211 up, fixing the angle of the fixing plate 203 and completing the fixation of the needle tube 101.

[0021] Please see Figures 5-7 The vertical axis adjustment mechanism 4 includes a rotating rod 402, which is fixedly installed on the inner wall of the adjustment frame 205. A rotating shaft 405 is rotatably provided on the outer wall of the rotating rod 402. A locking pin hole 403 is provided at one end of the rotating rod 402. Specifically, when it is necessary to adjust the angle of the vertical axis, the adjustment frame 205 drives the rotating rod 402 to rotate around the rotating shaft 405. When it is necessary to adjust the angle of the horizontal axis, the adjustment frame 205 drives the rotating shaft 405 to rotate around itself through the rotating rod 402.

[0022] Please see Figures 5-7A locking pin 401 is slidably provided on the inner wall of the locking pin hole 403, and a clamping plate 404 is slidably installed on the outer wall of the locking pin 401. An adjusting plate 501 is fixedly installed on the side end of the locking pin 401. Specifically, after adjusting the angle of the vertical axis, when the adjusting plate 501 is pushed to slide towards the end close to the locking pin hole 403, the adjusting plate 501 causes the front end of the locking pin 401 to enter the inner wall of the locking pin hole 403, fixing the angle of the vertical axis of the fixture. When the adjusting plate 501 slides away from the end away from the locking pin hole 403, the adjusting plate 501 causes the front end of the locking pin 401 to move away from the locking pin hole 403, restoring the rotation of the vertical axis of the fixture.

[0023] Please see Figures 5-7 A rotating shaft 405 is fixedly installed on the outer wall of the adjusting gear 502. A sliding groove 406 is provided on the inner wall of the clamping plate 404. A limiting cylinder 503 is slidably provided on the inner wall of the sliding groove 406, and the upper end of the limiting cylinder 503 is fixedly connected to the adjusting plate 501. A spring spring 504 is fixedly installed on the end of the limiting cylinder 503 away from the adjusting gear 502, and a disc 505 is fixedly installed on the end of the spring spring 504 away from the limiting cylinder 503. Specifically, when adjusting the angle of the horizontal shaft, the rotating shaft 405 drives the adjusting gear. When 502 rotates, after the angle is adjusted, the adjusting plate 501 is pushed to move towards the end closer to the adjusting gear 502. The adjusting plate 501 drives the limiting cylinder 503 to slide along the slide groove 406, so that the limiting cylinder 503 meshes with the adjusting gear 502, fixing the angle of the horizontal axis of the fixture. When the adjusting plate 501 moves away from the adjusting gear 502, the adjusting plate 501 drives the limiting cylinder 503 to slide along the slide groove 406, so that the limiting cylinder 503 disengages from the adjusting gear 502, restoring the rotation of the horizontal axis angle of the fixture.

[0024] Please see Figure 8 The installation mechanism 3 includes an installation ring 102, which is fixedly installed on the outer wall of the laser emitter 1. The upper end of the installation ring 102 is provided with an installation pin hole 305, and an installation pin 304 is slidably provided on the inner wall of the installation pin hole 305. Specifically, when installing the fixing device, the installation pin 304 is inserted into the inner wall of the installation pin hole 305 to fix the angle device. The operator holds the device and turns on the laser emitter 1, and its laser beam is projected onto the puncture site to provide a positioning reference for the vertical axis adjustment mechanism 4 and the horizontal axis adjustment structure 5.

[0025] Please see Figure 8A rubber ring 306 is fitted on the outer wall of the mounting pin 304. The rubber ring 306 is made of medical-grade silicone and has an anti-slip texture on its surface to increase the coefficient of friction. A semi-circular plate 103 is fixedly installed on the upper end of the mounting pin 304. A connecting rod 104 is fixedly installed on the upper end of the semi-circular plate 103. The other end of the connecting rod 104 is fixedly connected to the disc 505. Specifically, when installing the fixing device, the mounting pin 304 drives the rubber ring 306 to insert into the inner wall of the mounting pin hole 305 to fix the angle device. The rubber ring 306 is tightened by friction with the inner wall of the mounting pin hole 305 to ensure the stability of the connection.

[0026] The working principle of this invention is as follows: When installing the fixator, the mounting pin 304 drives the rubber ring 306 to insert into the inner wall of the mounting pin hole 305, fixing the fixator. The rubber ring 306 is tightened by friction with the inner wall of the mounting pin hole 305, ensuring connection stability. The operator holds the device and turns on the laser emitter 1, and its laser beam is projected onto the puncture site, providing a positioning reference for the vertical axis adjustment mechanism 4 and the horizontal axis adjustment structure 5. After the needle tube 101 is sleeved on the inner wall of the fixing ring 202, the fixing plate 203 is rotated, causing the fixing plate 203 to impact the upper end of the limiting block 210, and causing the side protrusion of the limiting block 210 to fit against the needle tube 101. After the impact, the return spring block 211 compresses its internal spring. After shortening itself, the spring regains its elasticity and pushes the return spring block 211 upward, adjusting the angle of the fixing plate 203. The needle tube 101 is fixed in place. When the angle of the vertical axis needs to be adjusted, the adjusting frame 205 drives the rotating rod 402 to rotate around the rotating shaft 405. When the angle of the horizontal axis needs to be adjusted, the adjusting frame 205 drives the rotating shaft 405 to rotate around itself through the rotating rod 402. After the angle adjustment is completed, when the adjusting plate 501 is pushed to slide towards the end near the locking pin hole 403, the adjusting plate 501 causes the front end of the locking pin 401 to enter the inner wall of the locking pin hole 403, fixing the angle of the vertical axis of the fixator. At the same time, the adjusting plate 501 drives the limiting cylinder 503 to slide along the slide groove 406, so that the limiting cylinder 503 meshes with the adjusting gear 502, fixing the angle of the horizontal axis of the fixator. This achieves the fixing of the angle of the puncture needle and the medium-length catheter, significantly improving the accuracy of puncture positioning and the efficiency of operation.

[0027] When the height of the needle tube 101 needs to be adjusted, the adjusting block 201 is pressed inward. The adjusting block 201 shortens the spring telescopic block 206 and compresses its internal spring, causing the limiting rod 207 to move away from the adjusting rack 204, thus releasing the limitation on the fixing ring 202. After the height is adjusted, the adjusting block 201 is released, and the elasticity of the spring inside the spring telescopic block 206 is restored. This pushes the spring telescopic block 206 to extend and causes the limiting rod 207 to approach and engage with the adjusting rack 204, restoring the limitation on the fixing ring 202. This achieves fine adjustment of the height of the needle tube 101, ensuring the accuracy of the movement trajectory and effectively improving the stability of puncture positioning.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An ultrasound-guided mini medium-length catheter angle fixator, comprising a laser emitter (1), characterized in that: The outer wall of the laser emitter (1) is provided with a mounting mechanism (3). A vertical axis adjustment mechanism (4) and a horizontal axis adjustment structure (5) are fixedly installed at the upper end of the mounting mechanism (3). The horizontal axis adjustment structure (5) includes an adjustment plate (501). The adjustment plate (501) limits the rotation angle of the vertical axis adjustment mechanism (4) and the horizontal axis adjustment structure (5). A height adjustment mechanism (2) to improve the success rate of puncture is provided at the end of the horizontal axis adjustment structure (5) away from the laser emitter (1). The mechanism (2) includes an adjustment block (201), a locking block (208) is slidably installed at one end of the adjustment block (201) away from the laser emitter (1), a connecting block (209) is fixedly installed at one end of the locking block (208) away from the adjustment block (201), a fixing ring (202) for fixing the puncture needle and the catheter is fixedly installed between the connecting blocks (209), a fixing plate (203) is rotatably provided on the outer wall of the fixing ring (202), and a needle tube (101) is slidably provided on the inner wall of the fixing ring (202).

2. The ultrasound-guided mini medium-length catheter angle fixator according to claim 1, characterized in that: The height adjustment mechanism (2) includes an adjustment frame (205), which is slidably disposed on the outer wall of the locking block (208). The outer wall of the adjustment frame (205) is provided with a slide rail (212), and the inner wall of the slide rail (212) is symmetrically provided with an adjustment rack (204). A spring telescopic block (206) is fixedly installed at the upper end of the locking block (208), and limit rods (207) are symmetrically installed at both ends of the spring telescopic block (206).

3. The ultrasound-guided mini medium-length catheter angle fixator according to claim 2, characterized in that: The inner wall of the fixed ring (202) is slidably provided with a limit block (210), and a reset spring block (211) is fixedly installed at the lower end of the limit block (210).

4. The ultrasound-guided mini medium-length catheter angle fixator according to claim 3, characterized in that: The vertical axis adjustment mechanism (4) includes a rotating rod (402), which is fixedly installed on the inner wall of the adjustment frame (205). A rotating shaft (405) is rotatably provided on the outer wall of the rotating rod (402), and a locking pin hole (403) is provided at one end of the rotating rod (402).

5. The ultrasound-guided mini medium-length catheter angle fixator according to claim 4, characterized in that: A locking pin (401) is slidably provided on the inner wall of the locking pin hole (403), a clamping plate (404) is slidably installed on the outer wall of the locking pin (401), and an adjusting plate (501) is fixedly installed on the side end of the locking pin (401).

6. The ultrasound-guided mini medium-length catheter angle fixator according to claim 5, characterized in that: An adjusting gear (502) is fixedly installed on the outer wall of the rotating shaft (405). A sliding groove (406) is provided on the inner wall of the clamping plate (404). A limiting cylinder (503) is slidably provided on the inner wall of the sliding groove (406). The upper end of the limiting cylinder (503) is fixedly connected to the adjusting plate (501). A spring spring (504) is fixedly installed on the end of the limiting cylinder (503) away from the adjusting gear (502). A disc (505) is fixedly installed on the end of the spring spring (504) away from the limiting cylinder (503).

7. The ultrasound-guided mini medium-length catheter angle fixator according to claim 1, characterized in that: The mounting mechanism (3) includes a mounting ring (102), which is fixedly mounted on the outer wall of the laser emitter (1). The upper end of the mounting ring (102) is provided with a mounting pin hole (305), and a mounting pin (304) is slidably provided on the inner wall of the mounting pin hole (305).

8. The ultrasound-guided mini medium-length catheter angle fixator according to claim 7, characterized in that: A rubber ring (306) is fitted on the outer wall of the mounting pin (304). A semi-circular plate (103) is fixedly installed on the upper end of the mounting pin (304). A connecting rod (104) is fixedly installed on the upper end of the semi-circular plate (103), and the other end of the connecting rod (104) is fixedly connected to the disc (505).

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