Ultrasonic impedance dual-mode puncture positioning device

Abstract

The invention relates to the field of medical apparatus and instruments, and discloses an ultrasonic impedance dual-mode puncture positioning device which comprises two Y-axis modules, vertical frames are arranged at the movable ends of the two Y-axis modules, an X-axis module is arranged at the tops of the two vertical frames, a horizontal steering assembly is arranged at the movable end of the X-axis module, and the horizontal steering assembly is arranged at the movable end of the X-axis module. A vertical steering assembly is arranged at the bottom of the horizontal steering assembly, an air cylinder is arranged at the bottom of the vertical steering assembly, and a pressure detection assembly is arranged at the output end of the air cylinder and used for detecting the pressure generated when the ultrasonic probe makes contact with the skin and transmitting signals, so that the contact strength is mastered, and it is guaranteed that ultrasonic images are clear; and excessive compression on the skin tissue of the patient is avoided. The limiting assembly is arranged on the designated position of the puncture needle in a sleeving mode, the four limiting rods are unfolded, when a doctor conducts puncture operation and the puncture depth of the puncture needle reaches a preset value, the limiting rods can make contact with the skin to achieve the blocking effect and avoid continuous penetration, and safety is improved.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to an ultrasonic impedance dual-mode puncture positioning device. Background Technology

[0002] Puncture is a clinical procedure that uses a puncture needle to obtain tissue samples, inject drugs, or perform interventional treatments. It is widely used in biopsies, anesthesia, drainage, and other scenarios. Ultrasonic impedance dual-mode puncture localization is a puncture guidance method that combines ultrasound imaging and impedance detection technology. It utilizes ultrasound to display anatomical structures in real time, while impedance detection distinguishes differences in tissue electrical properties, achieving precise planning of the puncture path and dual confirmation of the needle tip position.

[0003] However, existing puncture positioning devices have shortcomings in use. First, existing puncture needles lack limiting structures, making it easy for doctors to misoperate and cause the puncture depth to exceed the predetermined value, resulting in damage to deep tissues. Second, when performing ultrasound examinations, doctors need to hold the probe with one hand and the puncture needle with the other. The stability of single-handed operation is poor, increasing the risk of misoperation during puncture. Even if a support structure for the ultrasound probe is provided, it is not easy to control the contact force between the probe and the skin, which can easily lead to unclear image display or excessive pressure on the patient's tissues. Therefore, an ultrasound impedance dual-mode puncture positioning device is proposed to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an ultrasonic impedance dual-mode puncture positioning device, which solves the problems of existing puncture needles lacking limiting structures, which easily lead to excessive puncture and tissue damage, as well as the poor stability of single-handed operation during ultrasonic detection or the difficulty in controlling the contact force of the support structure, increasing the risk of misoperation and affecting image clarity.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultrasonic impedance dual-mode puncture positioning device, comprising:

[0006] Two Y-axis modules are provided, each of which has a vertical frame at its movable end. An X-axis module is provided at the top of each of the two vertical frames. A horizontal steering component is provided at the movable end of each X-axis module. A vertical steering component is provided at the bottom of the horizontal steering component. A cylinder is provided at the bottom of the vertical steering component.

[0007] A pressure detection component, located at the output end of a cylinder, is used to detect the pressure when the ultrasound probe contacts the skin and transmit a signal. This allows for precise control of the contact force to ensure clear ultrasound images and avoid excessive pressure on the patient's skin tissue. The pressure detection component has an external connecting frame, an ultrasound probe is mounted on the inner wall of the connecting frame, a puncture frame is mounted at the bottom of the ultrasound probe, a puncture needle is mounted on one side of the puncture frame, and an electrode is mounted at the bottom of the puncture needle.

[0008] A limiting assembly includes a collar fitted onto the surface of a puncture needle. Four L-shaped grooves are formed on the sidewall of the collar. Limiting rods are rotatably connected to the bottom of each L-shaped groove. Each of the four limiting rods has a slot on its surface. A connecting rod is rotatably connected to the inner wall of each of the four slots. A displacement ring is rotatably connected to the top of each of the four connecting rods. Two support plates are fixedly connected to the top of the collar. A top ring is fixedly connected to the top of each of the two support plates. Locking assemblies are provided on both sides of the displacement ring. A puncture detection assembly is provided at the bottom of each of the four limiting rods.

[0009] An ultraviolet disinfection assembly, disposed on one side of one of the vertical frames, is used for ultraviolet disinfection of the ultrasound probe and puncture needle.

[0010] Preferably, the pressure detection component includes a connecting seat and an indicator light. The connecting seat is fixedly connected to the output end of the cylinder. Slide grooves are provided on both sides of the inner wall of the connecting seat. Slider blocks are slidably connected to the inner walls of the two slide grooves. Displacement plates are fixedly connected to one side of the two sliders. The displacement plates are fixedly connected to the rear side of the connecting frame. A pressure sensor is fixedly installed at the top of the inner wall of the connecting seat. Several springs are fixedly connected to the top of the two sliders. The tops of the springs are fixedly connected to the tops of the inner walls of the slide grooves. The indicator light is fixedly installed at the front side of the connecting frame.

[0011] Preferably, the locking component includes a groove and a locking hole. The groove is formed on one side of the displacement ring, and a spring is fixedly connected to one side of the inner wall of the groove. A locking block is fixedly connected to one end of the spring. The locking hole is formed on the surface of the support plate, and one end of the locking block engages with the inner wall of the locking hole.

[0012] Preferably, the puncture detection assembly includes four pressure sensors and a buzzer. The four pressure sensors are fixedly installed at the bottom of the four limiting rods, and the buzzer is fixedly installed at the tip of the puncture needle.

[0013] Preferably, the ultraviolet disinfection component includes a storage shell, which is fixedly installed on one side of the vertical frame. Ultraviolet sterilization lamps are fixedly installed on both sides of the inner wall of the storage shell. A shell door is hinged to one side of the storage shell, and a disinfection detection component is installed at the bottom of the inner wall of the storage shell.

[0014] Preferably, the disinfection detection component includes a photoelectric sensor one and a photoelectric sensor two. The photoelectric sensor one is fixedly installed at the bottom of the inner wall of the storage shell, and the photoelectric sensor two is fixedly installed on one side of the inner wall of the storage shell.

[0015] Preferably, a receiving opening is provided on one side of the top of the storage shell, and an insertion hole is provided on the other side of the top of the storage shell.

[0016] Preferably, the displacement ring is located between the top ring and the collar, two push blocks are fixedly connected to the side wall of the displacement ring, a second spring is fixedly connected to the bottom of the displacement ring, the bottom end of the second spring is fixedly connected to the collar, the top ring and the second spring are both sleeved on the surface of the puncture needle, and a rubber block is fixedly connected to one end of the limiting rod, the rubber block abutting against the puncture needle.

[0017] Preferably, the surface of the puncture needle is provided with scale lines, and a connecting rope is provided outside the top ring, with one end of the connecting rope connected to the puncture frame.

[0018] Preferably, a controller is fixedly installed on the outside of the storage shell. The first pressure sensor is electrically connected to the indicator light and the cylinder through the controller. The four second pressure sensors are electrically connected to the buzzer through the controller. The first photoelectric sensor and the second photoelectric sensor are electrically connected to the two ultraviolet sterilization lamps through the controller.

[0019] This invention provides an ultrasonic impedance dual-mode puncture positioning device. It has the following beneficial effects:

[0020] 1. This invention involves placing a limiting component on the puncture needle and positioning it above a predetermined puncture depth. A pusher block is then pushed to move a displacement ring downwards, which in turn causes four limiting rods to unfold and move to a designated position. This allows a locking block to engage with the locking hole, providing a locking effect. Simultaneously, the rubber blocks at the inner end of the four limiting rods rotate and clamp against the outer wall of the puncture needle, achieving a self-locking position. When the doctor performs the puncture, if the needle reaches the predetermined depth, the limiting rods will contact the skin to prevent further penetration, thus improving safety.

[0021] 2. After detecting pressure, the pressure sensor at the bottom of the limiting rod of the present invention will work with the controller to activate the buzzer at the tip of the puncture needle, which will emit a beeping sound to increase the reminder effect and prevent the puncture from being too deep and causing damage to the patient's deep tissues.

[0022] 3. This invention utilizes a Y-axis module, an X-axis module, a horizontal steering component, and a vertical steering component to enable the ultrasound probe to contact the patient's skin at a suitable angle and position. After pressure is applied by the cylinder, the squeezing action overcomes the spring force, causing the displacement plate connected to the ultrasound probe to slide on the inner wall of the connecting seat. This ultimately triggers the pressure sensor, which, through the controller, stops the cylinder's operation and illuminates the indicator light to remind medical personnel to achieve the predetermined contact force. This ensures the clarity of the displayed image during ultrasound positioning and does not cause excessive pressure on the patient's skin tissue.

[0023] 4. After the test is completed, the ultrasonic probe can be moved using the X-axis module and placed into the storage shell for protection. After the shell door is closed, two ultraviolet sterilization lamps inside the shell can be activated to disinfect and sterilize the surface of the ultrasonic probe, thereby improving the hygiene for the next use. In addition, before the puncture operation, the puncture needle can be inserted through the insertion hole on the top of the storage shell to disinfect the needle body, which further enhances the hygiene. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the cylinder part of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the connector of the present invention;

[0027] Figure 4 This is a cross-sectional view of the connector of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the ultrasonic probe of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the puncture needle in this invention;

[0030] Figure 7 This is a schematic diagram of the structure of the collar of the present invention;

[0031] Figure 8 This is a cross-sectional schematic diagram of the collar portion of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the limiting rod of the present invention;

[0033] Figure 10 This is a schematic diagram of the structure at the displacement ring of the present invention;

[0034] Figure 11 This is a cross-sectional schematic diagram of the displacement ring of the present invention;

[0035] Figure 12 This is a schematic diagram of the structure of the housing of the present invention;

[0036] Figure 13 This is a schematic diagram of the structure of the limiting rod after it is retracted according to the present invention.

[0037] The components include: 1. Y-axis module; 2. Vertical frame; 3. X-axis module; 4. Horizontal steering assembly; 5. Vertical steering assembly; 6. Cylinder; 7. Connecting seat; 8. Pressure sensor one; 9. Slide groove; 10. Slider; 11. Displacement plate; 12. Spring one; 13. Connecting frame; 14. Indicator light; 15. Ultrasonic probe; 16. Puncture frame; 17. Puncture needle; 18. Buzzer; 19. Electrode; 20. Scale line; 21. Collar; 22. Support plate; 23. Top ring. 24. L-shaped groove; 25. Limiting rod; 26. Groove opening; 27. Rubber block; 28. Connecting rod; 29. ​​Displacement ring; 30. Spring II; 31. Locking hole; 32. Push block; 33. Groove; 34. Spring III; 35. Locking block; 36. Pressure sensor II; 37. Storage shell; 38. Ultraviolet sterilization lamp; 39. Shell door; 40. Photoelectric sensor I; 41. Photoelectric sensor II; 42. Receiving port; 43. Insertion hole; 44. Controller; 45. Connecting rope. Detailed Implementation

[0038] The technical solutions in 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.

[0039] Please see the appendix Figure 1 - Appendix Figure 13 This invention provides an ultrasonic impedance dual-mode puncture positioning device, including two Y-axis modules 1 for adjusting the longitudinal position of the ultrasonic detection structure. Each Y-axis module 1 has a vertical frame 2 at its movable end, and an X-axis module 3 is mounted on top of each vertical frame 2. The vertical frames 2 support the X-axis module 3 and move with the Y-axis modules 1 to adjust its longitudinal position. A horizontal steering component 4 is mounted on the movable end of the X-axis module 3 to adjust the lateral position of the horizontal steering component 4, thereby adjusting the lateral orientation of the ultrasonic detection structure. The horizontal steering component 4 drives the ultrasonic probe 15 to rotate left and right via a reduction motor to adjust its orientation. A vertical steering component 5 is mounted at the bottom of the horizontal steering component 4, which drives the ultrasonic probe 15 to rotate up and down via a reduction motor to adjust its orientation. A cylinder 6 is mounted at the bottom of the vertical steering component 5 to push the ultrasonic probe 15 to move, achieving contact with the skin and pressure control.

[0040] A pressure detection component, located at the output end of cylinder 6, is used to detect the pressure when the ultrasound probe 15 contacts the skin and transmit signals, thereby controlling the contact force to ensure clear ultrasound images and avoid excessive pressure on the patient's skin tissue. A connecting frame 13 is provided on the outside of the pressure detection component, and the ultrasound probe 15 is provided on the inner wall of the connecting frame 13. The connecting frame 13 is used to fix the ultrasound probe 15 and serves as an assembly. A puncture frame 16 is provided at the bottom of the ultrasound probe 15, and a puncture needle 17 is provided on one side of the puncture frame 16. The puncture frame 16 is used to assemble the puncture needle 17 on the ultrasound probe 15 for easy storage and puncture operation. The puncture needle 17 can be used to perform puncture treatment on the patient's tissue. An electrode 19 is provided at the bottom end of the puncture needle 17 to detect tissue impedance and assist in ultrasound positioning.

[0041] The limiting assembly includes a collar 21, which is fitted onto the surface of the puncture needle 17. The collar 21 can slide on the surface of the puncture needle 17 to adjust to a suitable position. It is fitted onto the puncture needle 17 before puncture and can be removed after puncture. The side wall of the collar 21 has four L-shaped grooves 24. The bottom of the L-shaped grooves 24 is rotatably connected to a limiting rod 25. The L-shaped grooves 24 provide rotation space for the limiting rod 25, allowing it to be folded up or unfolded for limiting. The limiting rod 25 can contact the skin when the puncture depth is reached, preventing the puncture needle 17 from penetrating further. Each of the four limiting rods 25 has a slot 26 on its surface. The inner wall of each of the four slots 26 is rotatably connected to a connecting rod 28, which serves as a transmission mechanism. When the limiting rod 25 is folded up, the connecting rod 28 can be stored in the slot 26. To reduce size, four connecting rods 28 are rotatably connected to a displacement ring 29 at their top. The displacement ring 29 moves up and down, causing the limiting rod 25 to unfold or retract. Two support plates 22 are fixedly connected to the top of the collar 21. They are located outside the displacement ring 29 and can limit and guide the movement of the displacement ring 29. A top ring 23 is fixedly connected to the top of the two support plates 22. The top ring 23 is used to limit the upward movement range of the displacement ring 29. Locking components are provided on both sides of the displacement ring 29. The two locking components can restrict the movement of the displacement ring 29 so that the limiting rod 25 can be stably kept in the unfolded state. A puncture detection component is provided at the bottom of the four limiting rods 25 to detect the pressure of the limiting rod 25 in contact with the skin and trigger the reminder structure to prevent excessive puncture.

[0042] An ultraviolet disinfection unit, which is located on one side of one of the vertical frames 2, is used to disinfect the ultrasound probe 15 and the puncture needle 17 with ultraviolet light.

[0043] The pressure detection assembly includes a connecting seat 7 and an indicator light 14. The connecting seat 7 is fixedly connected to the output end of the cylinder 6. After the cylinder 6 is started, it can drive the connecting seat 7 to extend forward or move backward, thereby moving the ultrasonic probe 15 for ultrasonic detection. Both sides of the inner wall of the connecting seat 7 are provided with sliding grooves 9. The inner walls of the two sliding grooves 9 are slidably connected with sliders 10. The two sliders 10 are fixedly connected to one side with displacement plates 11. With the cooperation of the sliders 10 and the sliding grooves 9, the displacement plates 11 can slide smoothly on the inner wall of the connecting seat 7. The displacement plates 11 are fixedly connected to the rear side of the connecting frame 13. When the connecting frame 13 moves, it can drive the displacement plates 11 to move accordingly. The top of the inner wall of the connecting seat 7 is fixedly installed with a pressure sensor 8, which is used to detect the pressure signal when the displacement plates 11 are in contact. The top of the two sliders 10 is fixedly connected with several springs 12. The top of the springs 12 is fixedly connected to the top of the inner wall of the sliding grooves 9, which can provide the elastic force for the displacement plates 11 to return. The indicator light 14 is fixedly installed on the front side of the connecting frame 13, which is used to visually remind that the pressure has reached the standard.

[0044] The locking assembly includes a groove 33 and a locking hole 31. The groove 33 is located on one side of the displacement ring 29 and is used to accommodate the locking structure. A spring 34 is fixedly connected to one side of the inner wall of the groove 33. A locking block 35 is fixedly connected to one end of the spring 34. The spring 34 provides elastic force to keep the locking block 35 in an extended state. The locking hole 31 is located on the surface of the support plate 22. One end of the locking block 35 engages with the inner wall of the locking hole 31 to lock the displacement ring 29 in a specific position on the support plate 22. The puncture detection assembly includes four pressure sensors 36 and a buzzer 18. The four pressure sensors 36 are fixedly installed at the bottom of the four limit rods 25 to detect the pressure signal when the limit rods 25 come into contact with the skin. The buzzer 18 is fixedly installed at the top of the puncture needle 17. When the pressure sensor 36 detects pressure, it triggers an audible alert to improve safety.

[0045] The ultraviolet disinfection assembly includes a housing 37, which is fixedly installed on one side of the vertical frame 2 to provide a closed disinfection space. Ultraviolet sterilization lamps 38 are fixedly installed on both sides of the inner wall of the housing 37 to emit ultraviolet light to kill bacteria on the surface of the ultrasonic probe 15. A door 39 is hinged to one side of the housing 37 to open or close the disinfection space and prevent ultraviolet light leakage. A disinfection detection assembly is installed at the bottom of the inner wall of the housing 37 to monitor whether the disinfection conditions are met. The disinfection detection assembly includes a photoelectric sensor 40 and a photoelectric sensor 41. The photoelectric sensor 40 is fixed... Installed at the bottom of the inner wall of the storage shell 37, it is used to detect whether the ultrasonic probe 15 is correctly placed inside the storage shell 37. The photoelectric sensor 2 41 is fixedly installed on one side of the inner wall of the storage shell 37 to detect whether the shell door 39 is completely closed. A receiving port 42 is opened on one side of the top of the storage shell 37, which provides movement and accommodation space for the cylinder 6 above the ultrasonic probe 15, so that the ultrasonic probe 15 can be smoothly placed into the storage shell 37. An insertion hole 43 is opened on the other side of the top of the storage shell 37 for inserting the puncture needle 17. Its handle will remain outside the shell, and the needle body will be placed inside the shell for disinfection.

[0046] The displacement ring 29 is located between the top ring 23 and the collar 21. Two push blocks 32 are fixedly connected to the side wall of the displacement ring 29, which facilitates manual movement of the displacement ring 29 by medical personnel. A second spring 30 is fixedly connected to the bottom of the displacement ring 29, and the bottom end of the second spring 30 is fixedly connected to the collar 21. The second spring 30 provides an upward elastic force, so that the displacement ring 29 automatically resets after unlocking. The top ring 23 and the second spring 30 are both sleeved on the surface of the puncture needle 17 to ensure that the displacement ring 29 moves smoothly along the axial direction of the puncture needle 17. A rubber block 27 is fixedly connected to one end of the limiting rod 25. Block 27 abuts against puncture needle 17. When the limiting rod 25 rotates and unfolds, the rubber block 27 at its end can abut against the outer wall of puncture needle 17, limiting the movement of the limiting component on the surface of puncture needle 17 through friction. The surface of puncture needle 17 is provided with scale lines 20, which are used to accurately display the puncture depth and assist medical staff in judging the depth during puncture operation. A connecting rope 45 is provided on the outside of the top ring 23. One end of the connecting rope 45 is connected to the puncture frame 16. The connecting rope 45 can connect the limiting component to the puncture frame 16 on the ultrasound probe 15 to prevent loss.

[0047] A controller 44 is fixedly installed on the outside of the storage shell 37. The controller 44 adopts a single-chip microcomputer system to process sensor signals and control the operation of various components. Pressure sensor 1 8 is electrically connected to indicator light 14 and cylinder 6 through the controller 44. When the pressure reaches the set value, cylinder 6 is automatically stopped and indicator light 14 is lit. Four pressure sensors 2 36 are electrically connected to buzzer 18 through the controller 44. When any pressure sensor detects pressure, buzzer 18 is triggered to alarm. Photoelectric sensor 1 40 and photoelectric sensor 2 41 are electrically connected to two ultraviolet sterilization lamps 38 through the controller 44. The ultraviolet sterilization lamps 38 are only activated when both sensors meet the conditions at the same time to ensure safe disinfection.

[0048] Working principle: The two Y-axis modules 1 of the positioning device are fixed on both sides of the operating table. By loosening and tightening the handle bolts on the Y-axis module 1 and the X-axis module 3, the position of the slider in the module on the slide rail can be adjusted, thereby changing the longitudinal and lateral position of the ultrasound probe 15. By activating the reduction motor in the horizontal steering component 4, the ultrasound probe 15 can be driven to rotate left and right to adjust its orientation. By activating the reduction motor in the vertical steering component 5, the ultrasound probe 15 can be driven to rotate up and down to adjust its orientation. This allows the ultrasound probe 15 to contact the patient's skin at a suitable angle and position.

[0049] By activating cylinder 6, the ultrasound probe 15 is moved to contact the patient's skin tissue at the point of examination. After the pressure is applied, the spring force of spring 12 is overcome under the squeezing action, causing the displacement plate 11 connected to the ultrasound probe 15 to slide on the inner wall of the connecting seat 7 and eventually contact the pressure sensor 8. After the pressure sensor 8 detects the pressure signal, it will stop the operation of cylinder 6 with the help of controller 44 and light up indicator light 14 to remind medical staff to reach the predetermined contact force. This ensures the clarity of the displayed image during ultrasound positioning and does not cause excessive pressure on the patient's skin tissue.

[0050] After fixing the position of the ultrasound probe 15, the puncture needle 17 is taken out from the puncture frame 16 and the patient's tissue is punctured. The tip of the puncture needle 17 has an electrode 19. When the electrode 19 contacts the tissue, a low-frequency alternating current is applied to measure the impedance value of the electrode 19-tissue interface. The position of the needle tip is observed simultaneously with ultrasound imaging, which plays a positioning role to improve the accuracy of the puncture operation. By pressing the locking block 35 on the limiting component into the groove 33, the locking of the displacement ring 29 is released. At this time, the spring 2 30 will push the displacement ring 29 upward, thereby driving the four connecting rods 28 and the limiting rod 25 to fold up, which can reduce the volume. By putting the limiting component on the puncture needle 17 and positioning it above the predetermined puncture depth, and then pushing the push block 32 to move the displacement ring 29 downward, the puncture proceeds. The four limiting rods 25 are extended by the connecting rod 28 and moved down to the designated position. The locking block 35 in the displacement ring 29 will pop out under the action of the spring 34 and lock into the locking hole 31 of the support plate 22. At the same time, the rubber block 27 at the inner end of the four limiting rods 25 will rotate and clamp on the outer wall of the puncture needle 17, achieving a self-locking position. When the doctor performs the puncture operation, when the puncture needle 17 reaches the predetermined depth, the limiting rod 25 will contact the skin to block it and prevent further penetration. At the same time, after the pressure sensor 36 at the bottom of the limiting rod 25 detects the pressure, it will work with the controller 44 to activate the buzzer 18 at the top of the puncture needle 17 to emit a beeping sound to increase the reminder effect, prevent the puncture from being too deep and causing damage to the patient's deep tissues, and improve safety.

[0051] After the test is completed, the ultrasonic probe 15 can be moved using the X-axis module 3 and placed into the storage shell 37 for protection. After closing the shell door 39, the two ultraviolet sterilization lamps 38 inside the shell can be activated to disinfect and sterilize the surface of the ultrasonic probe 15, thereby improving the hygiene for the next use. Before performing a puncture operation, the puncture needle 17 can also be inserted through the insertion hole 43 on the top of the storage shell 37 to disinfect the needle body, further enhancing hygiene. The ultraviolet sterilization lamps 38 can only be activated when the photoelectric sensor 1 40 detects that the ultrasonic probe 15 is in place and the photoelectric sensor 2 41 detects that the shell door 39 is closed, in order to prevent ultraviolet leakage from harming the human body. The two photoelectric sensors are model CX-441, the pressure sensor 1 8 is model CX20AJ2TN1210, and the pressure sensor 2 36 is model SCL015.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic impedance dual-mode puncture positioning device, characterized in that, include: Two Y-axis modules (1), each Y-axis module (1) is provided with a vertical frame (2) at its movable end, and an X-axis module (3) is provided at the top of each vertical frame (2). A horizontal steering component (4) is provided at the movable end of the X-axis module (3), and a vertical steering component (5) is provided at the bottom of the horizontal steering component (4). A cylinder (6) is provided at the bottom of the vertical steering component (5). The pressure detection component is located at the output end of the cylinder (6) and is used to detect the pressure when the ultrasound probe (15) contacts the skin and transmit signals, thereby controlling the contact force to ensure the clarity of the ultrasound image and avoid causing excessive pressure on the patient's skin tissue. The pressure detection component is provided with a connecting frame (13) on the outside, and the ultrasound probe (15) is provided on the inner wall of the connecting frame (13). The ultrasound probe (15) is provided with a puncture frame (16) at the bottom, and a puncture needle (17) is provided on one side of the puncture frame (16). An electrode (19) is provided at the bottom end of the puncture needle (17). The limiting component includes a collar (21) which is sleeved on the surface of the puncture needle (17). The collar (21) has four L-shaped grooves (24) on its side wall. The bottom of the L-shaped grooves (24) is rotatably connected to limiting rods (25). The surfaces of the four limiting rods (25) are all provided with slots (26). The inner walls of the four slots (26) are rotatably connected to connecting rods (28). The tops of the four connecting rods (28) are rotatably connected to displacement rings (29). The top of the collar (21) is fixedly connected to two support plates (22). The tops of the two support plates (22) are fixedly connected to a top ring (23). The displacement rings (29) are provided with locking components on both sides. The bottoms of the four limiting rods (25) are provided with puncture detection components. An ultraviolet disinfection assembly, which is disposed on one side of one of the vertical frames (2), is used to disinfect the ultrasound probe (15) and the puncture needle (17) with ultraviolet light.

2. The ultrasonic impedance dual-mode puncture positioning device according to claim 1, characterized in that, The pressure detection assembly includes a connecting seat (7) and an indicator light (14). The connecting seat (7) is fixedly connected to the output end of the cylinder (6). The inner walls of the connecting seat (7) are provided with sliding grooves (9) on both sides. The inner walls of the two sliding grooves (9) are slidably connected with sliders (10). The two sliders (10) are fixedly connected to one side with a displacement plate (11). The displacement plate (11) is fixedly connected to the rear side of the connecting frame (13). The top of the inner wall of the connecting seat (7) is fixedly installed with a pressure sensor (8). The tops of the two sliders (10) are fixedly connected with several springs (12). The tops of the several springs (12) are fixedly connected to the tops of the inner walls of the sliding grooves (9). The indicator light (14) is fixedly installed on the front side of the connecting frame (13).

3. The ultrasonic impedance dual-mode puncture positioning device according to claim 1, characterized in that, The locking assembly includes a groove (33) and a locking hole (31). The groove (33) is opened on one side of the displacement ring (29). A spring (34) is fixedly connected to one side of the inner wall of the groove (33). A locking block (35) is fixedly connected to one end of the spring (34). The locking hole (31) is opened on the surface of the support plate (22). One end of the locking block (35) engages with the inner wall of the locking hole (31).

4. The ultrasonic impedance dual-mode puncture positioning device according to claim 2, characterized in that, The puncture detection assembly includes four pressure sensors (36) and a buzzer (18). The four pressure sensors (36) are fixedly installed at the bottom of the four limiting rods (25), and the buzzer (18) is fixedly installed at the top of the puncture needle (17).

5. The ultrasonic impedance dual-mode puncture positioning device according to claim 4, characterized in that, The ultraviolet disinfection assembly includes a storage shell (37), which is fixedly installed on one side of the vertical frame (2). Ultraviolet sterilization lamps (38) are fixedly installed on both sides of the inner wall of the storage shell (37). A shell door (39) is hinged to one side of the storage shell (37). A disinfection detection assembly is installed at the bottom of the inner wall of the storage shell (37).

6. The ultrasonic impedance dual-mode puncture positioning device according to claim 5, characterized in that, The disinfection detection component includes photoelectric sensor one (40) and photoelectric sensor two (41). The photoelectric sensor one (40) is fixedly installed at the bottom of the inner wall of the storage shell (37), and the photoelectric sensor two (41) is fixedly installed on one side of the inner wall of the storage shell (37).

7. The ultrasonic impedance dual-mode puncture positioning device according to claim 5, characterized in that, The storage shell (37) has an opening (42) on one side of its top end and an insertion hole (43) on the other side of its top end.

8. The ultrasonic impedance dual-mode puncture positioning device according to claim 1, characterized in that, The displacement ring (29) is located between the top ring (23) and the collar (21). Two push blocks (32) are fixedly connected to the side wall of the displacement ring (29). A second spring (30) is fixedly connected to the bottom of the displacement ring (29). The bottom end of the second spring (30) is fixedly connected to the collar (21). The top ring (23) and the second spring (30) are both sleeved on the surface of the puncture needle (17). A rubber block (27) is fixedly connected to one end of the limiting rod (25). The rubber block (27) abuts against the puncture needle (17).

9. The ultrasonic impedance dual-mode puncture positioning device according to claim 8, characterized in that, The surface of the puncture needle (17) is provided with scale lines (20), and a connecting rope (45) is provided on the outside of the top ring (23). One end of the connecting rope (45) is connected to the outside of the puncture frame (16).

10. The ultrasonic impedance dual-mode puncture positioning device according to claim 6, characterized in that, A controller (44) is fixedly installed on the outside of the storage shell (37). The first pressure sensor (8) is electrically connected to the indicator light (14) and the cylinder (6) through the controller (44). The four second pressure sensors (36) are electrically connected to the buzzer (18) through the controller (44). The first photoelectric sensor (40) and the second photoelectric sensor (41) are electrically connected to the two ultraviolet sterilization lamps (38) through the controller (44).

Images