Three-axis coincidence ultrasonic positioning device for extracorporeal shock wave lithotripter

Abstract

The utility model discloses a three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripter, and relates to the technical field of ultrasonic positioning devices.The three-axis coincidence ultrasonic positioning device comprises a base, a reflector, a water bag, a probe and a first driving part, the base is rotationally connected with a guide rail, and the rotating axis of the guide rail is parallel to the length direction of the guide rail; the reflector is mounted at one end of the base; the water bag is installed on the base on the side, away from the guide rail, of the reflector. The probe is slidably connected to the guide rail; one end of the probe penetrates through the reflector and extends into the water bag; the first driving member is used for driving the probe to move. The ultrasonic detection device has the effect that medical staff can conveniently adjust the position of the ultrasonic detection surface.

Description

Technical Field

[0001] The present application relates to the technical field of ultrasonic positioning devices, and in particular to a three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy. Background Art

[0002] Ultrasonic positioning technology has been widely used in the field of medical imaging, mainly for determining the location of lesions in ultrasonic imaging and ultrasonic diagnosis.

[0003] In the related art, a Chinese patent document with the authorization announcement number CN201602829U discloses a B-ultrasound positioning device with a built-in wave source of an extracorporeal shock wave lithotripsy, which includes a reflector, an electromagnetic shock wave source and a B-ultrasound probe, wherein the electromagnetic shock wave source is arranged inside the reflector and the B-ultrasound probe is arranged vertically inside the electromagnetic shock wave source. It enables ultrasound to enter vertically from the skin to achieve the best path for detecting stones.

[0004] However, when the device in the related art is detecting stones, medical staff need to move the entire device to adjust the position of the ultrasonic detection surface. Due to the heavy weight of the device, it is inconvenient for medical staff to operate. Utility Model Content

[0005] In order to facilitate medical personnel to adjust the position of the ultrasonic detection surface, the present application provides a three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy.

[0006] The present application provides a three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy, which adopts the following technical solution:

[0007] A three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy, comprising:

[0008] A base, wherein the base is rotatably connected to a guide rail, and the rotation axis of the guide rail is parallel to the length direction thereof;

[0009] A reflector, the reflector being mounted on one end of the base;

[0010] A water bag, the water bag being mounted on the base at a side of the reflector away from the guide rail;

[0011] A probe, the probe is slidably connected to the guide rail, one end of the probe passes through the reflector and extends into the water bag;

[0012] A first driving member is used to drive the probe to move.

[0013] By adopting the above technical solution, the probe transmits ultrasonic waves and the reflector receives ultrasonic waves to detect the location of the lesion in the patient's body. The first driving member is used to drive the probe to slide along the length direction of the guide rail to adjust the distance between the probe and the human skin according to the patient's fatness or thinness, thereby improving the accuracy of detection. The guide rail drives the probe to rotate, so that medical staff can adjust the position of the ultrasonic detection surface by rotating the guide rail, thereby eliminating the need for medical staff to move the entire device to adjust the position of the ultrasonic detection surface, thereby facilitating medical staff to adjust the position of the ultrasonic detection surface.

[0014] Optionally, the first driving member is installed on the guide rail, the output end of the first driving member is coaxially connected with a first driving gear, the probe is connected with a driving rack, and the first driving gear is meshed with the driving rack.

[0015] By adopting the above technical solution, the first driving member drives the first driving gear to rotate, and the first driving gear drives the probe to move along the length direction of the guide rail through the driving rack.

[0016] Optionally, the guide rail is provided with a through groove along its rotation axis, the probe includes a fixedly connected ultrasonic emission source and a slider, the slider is slidably connected to the inner wall of the through groove, and the ultrasonic emission source is coaxially arranged with the guide rail.

[0017] By adopting the above technical scheme, the probe can be inserted into the through groove, thereby making the structure of the three-axis coincidence ultrasonic positioning device for the extracorporeal shock wave lithotripsy compact, reducing the space occupied by the three-axis coincidence ultrasonic positioning device for the extracorporeal shock wave lithotripsy, and being suitable for the coincidence of the rotation axis of the ultrasonic emission source and the guide rail, thereby facilitating the positioning of the ultrasonic detection surface for medical staff.

[0018] Optionally, the cross-sectional shapes of the through groove and the sliding block are both polygonal, and the inner wall of the through groove fits with the outer wall of the sliding block.

[0019] By adopting the above technical solution, the cross-sections of the through groove and the slider are polygonal, and the inner wall of the through groove fits with the side wall of the slider, so that when the guide rail rotates, the ultrasonic emission source can be driven to rotate through the slider, and the structure of the guide rail and the slider is simple and reliable, and easy to process.

[0020] Optionally, the guide rail is provided with a clearance hole along its length direction, the clearance hole is communicated with the through slot, and the clearance hole is used for the driving rack to pass through.

[0021] By adopting the above technical solution, the clearance hole can reduce the interference between the driving rack and the guide rail when the probe moves, thereby reducing the overall length of the probe while keeping the moving range of the probe unchanged, and further making the structure of the three-axis coincidence ultrasonic positioning device for extracorporeal shock wave lithotripsy compact.

[0022] Optionally, the guide rail is fixedly connected with a ring gear around its rotation axis, and the base is provided with a second driving member and a second driving gear, the second driving gear is meshed with the ring gear, the output end of the second driving member is coaxially connected with the second driving gear, and the second driving member is used to drive the second driving gear to rotate.

[0023] By adopting the above technical solution, the second driving member drives the guide rail to rotate through the meshing relationship between the second driving gear and the ring gear.

[0024] Optionally, the probe is inserted into the gear ring, and the probe and the gear ring are coaxially arranged.

[0025] By adopting the above technical solution, the probe is inserted into the gear ring, which can make the structure of the three-axis coincidence ultrasonic positioning device for extracorporeal shock wave lithotripsy compact. The coaxial arrangement of the probe and the gear ring can facilitate medical staff to determine the position of the ultrasonic detection surface.

[0026] Optionally, the reflector is fixedly connected to a water-proof cover at one end close to the water bag, the water-proof cover is flexible, and one end of the probe is located inside the water-proof cover.

[0027] By adopting the above technical solution, the water-proof cover isolates the probe from the water in the water bag, reducing the situation where the probe fails due to water ingress.

[0028] In summary, the present application includes at least one of the following beneficial effects:

[0029] 1. The first driving member is used to drive the probe to slide along the length direction of the guide rail to adjust the distance between the probe and the human skin according to the patient's fatness or thinness, thereby improving the accuracy of detection. The guide rail drives the probe to rotate, so that the medical staff can adjust the position of the ultrasonic detection surface by rotating the guide rail, thereby eliminating the need for the medical staff to move the entire device to adjust the position of the ultrasonic detection surface, thereby facilitating the medical staff to adjust the position of the ultrasonic detection surface;

[0030] 2. The through slot is provided at the center of the guide rail, so that the probe can be inserted into the through slot, thereby making the structure of the three-axis coincidence ultrasonic positioning device for the extracorporeal shock wave lithotripsy compact, reducing the space occupied by the three-axis coincidence ultrasonic positioning device for the extracorporeal shock wave lithotripsy, and being suitable for the ultrasonic emission source to coincide with the rotation axis of the guide rail, thereby facilitating the positioning of the ultrasonic detection surface for medical staff;

[0031] 3. The cross-sections of the through groove and the slider are polygonal, and the inner wall of the through groove fits the side wall of the slider, so that when the guide rail rotates, the ultrasonic emission source can be driven to rotate through the slider, and the structure of the guide rail and the slider is simple and reliable, and easy to process;

[0032] 4. The driving rack is passed through the clearance hole, which can reduce the interference between the driving rack and the guide rail when the probe moves, thereby reducing the overall length of the probe while keeping the moving range of the probe unchanged, and further making the structure of the three-axis coincidence ultrasonic positioning device for extracorporeal shock wave lithotripsy compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0034] Figure 2 It is a cross-sectional structural schematic diagram for showing the internal structure of the base;

[0035] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0036] Figure 4 It is a schematic diagram used to show the partial structure of the guide rail.

[0037] Explanation of the reference numerals: 2. base; 21. shell; 22. mounting platform; 23. first mounting hole; 3. reflector; 31. reflecting part; 32. mounting part; 33. second mounting hole; 4. water-proof cover; 5. water bag; 6. probe; 61. ultrasonic emission source; 62. slider; 7. guide rail; 8. through groove; 9. clearance hole; 10. first driving member; 11. first driving gear; 12. driving rack; 13. second driving member; 14. second driving gear; 15. ring gear. DETAILED DESCRIPTION

[0038] An extracorporeal shock wave lithotripsy is a device that produces a highly concentrated stress area at the focal point after the shock wave is focused. When the stone is located in this focal area, due to the large difference in shock wave impedance between the stone, water and human soft tissue, a certain intensity of compressive stress and tensile stress will be generated on the stone. Water is similar to human soft tissue, so the shock wave can pass through with basically no loss. The shock wave vibrations can crush the stone to a fineness that can be discharged from the body, thereby achieving the purpose of treating the stone. An extracorporeal shock wave lithotripsy generally uses an ultrasonic positioning device to locate the position of the stone. The area detected by the ultrasonic positioning device is an ultrasonic detection surface. When locating the stone, the ultrasonic detection surface needs to be moved to find the position of the stone.

[0039] The following is combined with Figure 1-3 This application is described in further detail.

[0040] The present application discloses a three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy, referring to Figure 1 and Figure 2The three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy comprises a base 2, a reflector 3 and a water bag 5. The base 2 comprises a shell 21 and a mounting platform 22. The main body of the shell 21 is a cylinder with an opening at one end. The mounting platform 22 is a truncated cone. The mounting platform 22 is coaxially arranged inside the shell 21 and fixedly connected to the inner wall of the shell 21. The mounting platform 22 is coaxially provided with a first mounting hole 23 along its axial direction. The reflector 3 includes a coaxially fixedly connected reflecting portion 31 and a mounting portion 32. The reflecting portion 31 is fixedly connected to the inner wall of the shell 21. The main body of the reflecting portion 31 is flared, and the larger opening faces the direction of the opening of the shell 21. The mounting portion 32 is cylindrical and fixedly connected to the inner wall of the reflecting portion 31 near the opening of the shell 21. The mounting portion 32 is provided with a second mounting hole 33 along its axial direction. The second mounting hole 33 is coaxially arranged with the first mounting hole 23 and is connected to each other. The end face of the mounting portion 32 away from the first mounting hole 23 is fixedly connected to a water-blocking cover 4. The water-blocking cover 4 closes the opening of the second mounting hole 33, and the water-blocking cover 4 is made of flexible material. The water bag 5 is hemispherical and flexible. The water bag 5 is fixedly connected to the side wall at the opening of the shell 21 and closes the inside of the shell 21. The water bag 5 contains water, and the water in the water bag 5 is used for the shock wave to pass through.

[0041] Reference Figure 3 and Figure 4 The three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripter includes a guide rail 7, which is cylindrical and coaxially rotatably connected to a mounting platform 22 through a bearing. A through slot 8 and a clearance hole 9 are provided along the axial direction of the guide rail 7. The cross section of the through slot 8 is triangular and communicates with the first mounting hole 23. The cross section of the clearance hole 9 is annular and communicates with the first mounting hole 23. The clearance hole 9 passes through the outer wall of one side of the guide rail 7 and the inner wall of one side of the through slot 8. A gear ring 15 is coaxially fixedly connected to the outer wall of the guide rail 7. A second driving member 13 is fixedly connected to the inner wall of the housing 21 between the mounting platform 22 and the closed end of the housing 21. The second driving member 13 is a motor. The rotation axis of the output end of the second driving member 13 is parallel to the axial direction of the guide rail 7. The output end of the second driving member 13 is coaxially fixedly connected to a second driving gear 14.

[0042] The second driving member 13 can drive the second driving gear 14 to rotate, and the second driving gear 14 drives the guide rail 7 to rotate around the axis of the mounting platform 22 through the ring gear 15 .

[0043] Reference Figure 3 and Figure 4The three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripter comprises a probe 6, which comprises a fixedly connected ultrasonic emission source 61 and a slider 62. The slider 62 has a triangular cross section and is slidably connected to the guide rail 7 through a through slot 8. The slider 62 is fixedly connected to a drive rack 12 along its axial direction. The drive rack 12 corresponds to the clearance hole 9, so that the drive rack 12 can pass through the clearance hole 9. The ultrasonic emission source 61 is fixedly connected to one end of the slider 62 near the water bag 5. The ultrasonic emission source 61 passes through the first mounting hole 23 and the second mounting hole 33 and one end extends into the water shield 4. The water shield 4 isolates the probe 6 from the water in the water bag 5 to reduce the situation where the probe 6 fails due to water ingress. The guide rail 7 is fixedly connected to a first drive member 10, which is a motor. The rotation axis of the output end of the first drive member 10 is perpendicular to the rotation axis of the mounting platform 22. The output end of the first drive member 10 is coaxially fixedly connected to a first drive gear 11, which meshes with the drive gear 11.

[0044] The first driving member 10 drives the first driving gear 11 to rotate, and the first driving gear 11 drives the slider 62 to move along the axial direction of the mounting platform 22 through the driving rack 12, so that the slider 62 drives the ultrasonic transmitting source 61 to move along the axial direction of the mounting platform 22, thereby adjusting the distance between the ultrasonic transmitting source 61 and the patient's skin, so that the ultrasonic positioning device can adjust the distance between the ultrasonic transmitting source 61 and the patient's skin according to the patient's fatness or thinness, thereby improving the accuracy of ultrasonic positioning.

[0045] The cross-section of the slider 62 is triangular, and the side wall of the slider 62 fits with the inner wall of the slide groove, so that the second driving member 13 can drive the slider 62 to rotate through the guide rail 7, so that the ultrasonic transmitting source 61 rotates, and thus the ultrasonic detection surface formed by the ultrasonic transmitting source 61 rotates, so that medical staff can locate the stones, and the structure of the slider 62 and the guide rail 7 is simple and easy to process.

[0046] The probe 6 is inserted into the slide groove, so that the structure of the three-axis coincidence ultrasonic positioning device for the extracorporeal shock wave lithotripsy is compact, the space occupied by the three-axis coincidence ultrasonic positioning device for the extracorporeal shock wave lithotripsy is reduced, and the ultrasonic emission source 61 is coincident with the rotation axis of the guide rail 7, thereby facilitating the positioning of the ultrasonic detection surface for medical staff.

[0047] The driving rack 12 corresponds to the clearance hole 9, which can reduce the interference between the driving rack 12 and the guide rail 7 when the probe 6 moves, thereby reducing the overall length of the probe 6 without changing the moving range of the probe 6, and further making the structure of the three-axis coincidence ultrasonic positioning device for extracorporeal shock wave lithotripsy compact.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy, characterized in that: include: A base (2), the base (2) being rotatably connected to a guide rail (7), the rotation axis of the guide rail (7) being parallel to its length direction; A reflector (3), the reflector (3) being mounted on one end of the base (2); A water bag (5), the water bag (5) being mounted on the base (2) at a side of the reflector (3) away from the guide rail (7); A probe (6), the probe (6) being slidably connected to the guide rail (7), one end of the probe (6) passing through the reflector (3) and extending into the interior of the water bag (5); A first driving member (10), wherein the first driving member (10) is used to drive the probe (6) to move.

2. A three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy according to claim 1, characterized in that: The first driving member (10) is mounted on the guide rail (7), the output end of the first driving member (10) is coaxially connected to a first driving gear (11), the probe (6) is connected to a driving rack (12), and the first driving gear (11) is meshed with the driving rack (12).

3. A three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy according to claim 2, characterized in that: The guide rail (7) is provided with a through slot (8) along its rotation axis. The probe (6) comprises an ultrasonic emission source (61) and a slider (62) which are fixedly connected. The slider (62) is slidably connected to the inner wall of the through slot (8). The ultrasonic emission source (61) is coaxially arranged with the guide rail (7).

4. A three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy according to claim 3, characterized in that: The cross-sectional shapes of the through groove (8) and the sliding block (62) are both polygonal, and the inner wall of the through groove (8) fits the outer wall of the sliding block (62).

5. A three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy according to claim 4, characterized in that: The guide rail (7) is provided with a clearance hole (9) along its length direction, the clearance hole (9) is communicated with the through slot (8), and the clearance hole (9) is used for the driving rack (12) to pass through.

6. A three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy according to claim 1, characterized in that: The guide rail (7) is fixedly connected with a gear ring (15) around its rotation axis. The base (2) is provided with a second driving member (13) and a second driving gear (14). The second driving gear (14) is meshed with the gear ring (15). The output end of the second driving member (13) is coaxially connected with the second driving gear (14). The second driving member (13) is used to drive the second driving gear (14) to rotate.

7. A three-axis coincidence ultrasonic positioning device for an extracorporeal shock wave lithotripsy according to claim 6, characterized in that: The probe (6) is coaxially arranged with the gear ring (15).

8. The three-axis coincidence ultrasonic positioning device for extracorporeal shock wave lithotripsy according to claim 1, characterized in that: One end of the reflector (3) close to the water bag (5) is fixedly connected to a water-blocking cover (4); the water-blocking cover (4) is flexible; one end of the probe (6) is located inside the water-blocking cover (4).

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