Probe pressing and fixing device for liver elasticity detection

Abstract

The invention discloses a probe pressing and fixing device for liver elasticity detection, which comprises a liver detection probe body, a data transmission line fixedly connected to the liver detection probe body, a rotating seat and an overturning seat rotationally connected to the rotating seat, the liver detection probe further comprises an overturning frame fixedly connected to the overturning base, a first threaded rod rotationally connected to the overturning frame, a first sliding block slidably connected to the overturning frame and in threaded connection to the first threaded rod, a clamping assembly installed on the rotating base, and an inclination assembly installed on the first sliding block and driving the liver detection probe body to incline towards a preset angle. The pressure regulating assembly is mounted on the inclined assembly; and the mounting assembly is mounted on the pressure regulating assembly. A complete mechanical fixing and pressure applying system is constructed, a traditional whole-course handheld operation mode is replaced, muscle strain and fatigue caused by long-time maintaining of an operator in a fixed posture are eliminated, and manpower is liberated from pure physical support.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a probe pressure fixation device for liver elasticity testing. Background Technology

[0002] Liver elastography is an important clinical tool for assessing the degree of liver fibrosis and diagnosing liver diseases. During the test, the probe must be stably attached to the test site and constant pressure must be maintained to ensure the accuracy and reliability of the test data and provide effective evidence for the diagnosis and treatment of liver diseases. This device is used to apply pressure and fix the probe in position during liver elastography, ensuring stable probe attachment and pressure, guaranteeing accurate test data, and meeting the application needs of clinical liver disease diagnosis.

[0003] In the existing technology, the current liver elasticity test requires the operator to hold the probe and maintain a specific pressure and angle on the patient's body surface for measurement. This operation requires the operator to bend over for a long time and continuously apply force with their hands, which can easily lead to fatigue and unstable posture. It is difficult to maintain constant pressure manually, and the operation is very burdensome. This may affect the accuracy of the test results and may also easily cause muscle strain to the operator. Summary of the Invention

[0004] The purpose of this invention is to provide a probe pressure fixing device for liver elasticity detection, so as to solve the problems of fatigue and unstable detection caused by long-term handheld operation of the detection device mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a probe pressure fixing device for liver elasticity detection, comprising a liver detection probe body, a data transmission line fixedly connected to the liver detection probe body, a rotating seat and a flipping seat rotatably connected to the rotating seat, and further comprising a flipping frame fixedly connected to the flipping seat, a first threaded rod rotatably connected to the flipping frame, a first slider slidably connected to the flipping frame and threadedly connected to the first threaded rod, a clamping assembly mounted on the rotating seat, an tilting assembly mounted on the first slider, a pressure adjusting assembly mounted on the tilting assembly, and a mounting assembly mounted on the pressure adjusting assembly.

[0006] According to the preferred embodiment of this technical solution, the clamping assembly includes a positioning seat, a second threaded rod threadedly connected to the positioning seat, and a clamping plate rotatably connected to the second threaded rod and slidably connected to the positioning seat. The rotating seat is mounted on the positioning seat, and when the second threaded rod rotates, it drives the clamping plate to slide away from or towards the rotating seat.

[0007] Based on the preferred embodiment of this technical solution, the flipping seat and the rotating seat, as well as the rotating seat and the positioning seat, are engaged by controllable frictional force, so that the rotating seat or the flipping seat can rotate to any angle and be fixed at that angle.

[0008] According to the preferred embodiment of this technical solution, the tilting component includes a guide frame fixedly connected to the first slider, a second slider slidably connected to the guide frame, a pull ring fixedly connected to the second slider, a retaining ball slidably connected to the second slider, and a first spring fixedly connected between the second slider and the retaining ball. When the first spring is compressed, the retaining ball slides within the second slider.

[0009] In the preferred embodiment of this technical solution, an arc-shaped guide groove is provided on the guide frame, and the second slider slides within the arc-shaped guide groove.

[0010] Based on the preferred embodiment of this technical solution, the guide frame is evenly provided with locking holes at multiple angles, and when the second slider slides to a preset angle, the locking ball is engaged in the locking hole corresponding to the preset angle.

[0011] According to the preferred embodiment of this technical solution, the pressure regulating component includes a limiting plate fixedly connected to the second slider, a third threaded rod rotatably connected to the limiting plate, a third slider threadedly connected to the third threaded rod, a second spring fixedly connected to the third slider, and a fourth slider fixedly connected to the end of the second spring away from the third slider. Both the third slider and the fourth slider slide on the limiting plate.

[0012] In a preferred embodiment of this technical solution, the fourth slider has a through hole with a diameter larger than the outer diameter of the third threaded rod, and the third threaded rod passes through the through hole without contacting the fourth slider.

[0013] Based on the preferred embodiment of this technical solution, the mounting components include a mounting plate fixedly connected to the fourth slider, a rotating shaft rotatably connected to the mounting plate, a torsion spring installed between the rotating shaft and the mounting plate, a flip plate fixedly connected to the rotating shaft, a rubber wheel rotatably connected to the flip plate, a support plate fixedly connected to the mounting plate, and a stop plate fixedly connected to the support plate. The liver detection probe body is installed between the rubber wheel and the support plate and is in contact with the stop plate.

[0014] In the preferred embodiment of this technical solution, a through groove larger than the diameter of the data transmission line is provided on the back plate, and when the connection end of the liver detection probe body connected to the data transmission line contacts the back plate, the data transmission line passes through the through groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. A complete mechanical fixing and pressure system is constructed through the stepless angle locking between the rotating seat and the flipping seat, as well as the movable first slider. This completely replaces the traditional hand-held operation mode, which not only eliminates muscle strain and fatigue caused by the operator maintaining a fixed posture for a long time, but also frees manpower from simple physical support, allowing him to focus on precise positioning and parameter adjustment. This fundamentally solves the ergonomic dilemma and operational burden problem.

[0016] 2. The third threaded rod in the pressure regulating assembly precisely adjusts the pre-compression of the second spring, enabling quantifiable preset and mechanical holding of the probe contact pressure. This effectively isolates interference caused by operator hand tremors and patient physiological micro-movements, ensuring a constant pressure throughout the entire testing process. This overcomes the inherent defect of unstable control due to manual pressure application, significantly improving the accuracy and repeatability of the test data.

[0017] 3. The arc-shaped guide mechanism with positioning function in the tilting component enables the probe to be adjusted in all directions and continuously in terms of horizontal rotation, overall pitch and fine tilt angle. This multi-dimensional flexible adjustment capability allows the probe to be accurately adapted and firmly locked in the specific anatomical position and optimal detection angle of different patients, which greatly enhances the adaptability and standardization of clinical operation.

[0018] 4. The mounting components provide closing force through torsion springs, which, together with the rubber wheels and support plates, form a flexible clamp, enabling quick assembly and disassembly of the probe body and non-destructive fixation. The design of the abutment plate and its through groove provides a precise axial positioning reference for the probe and standardizes the cable path, ensuring accurate pressure transmission while greatly improving ease of operation and effectively protecting the probe and cable from accidental damage.

[0019] 5. The clamping assembly enables a quick and secure connection between the device and the edge of the medical bed. Its spiral clamping method has a self-locking characteristic, requiring no additional auxiliary fixation or manual support, providing a stable and reliable foundation for all subsequent precision adjustments and ensuring that the device is free from displacement risk throughout the entire testing process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one embodiment of a probe pressure fixing device for liver elasticity detection according to the present invention; Figure 2 This is a schematic diagram of the overall right-side structure of the present invention; Figure 3 This is a schematic diagram of the clamping component structure of the present invention; Figure 4 This is a schematic diagram of the cooperative structure of the tilting component and the voltage regulating component of the present invention; Figure 5 This is a schematic cross-sectional view of the tilting component of the present invention; Figure 6 This is a cross-sectional view of the voltage regulating component of the present invention; Figure 7 This is a schematic diagram of the assembly component and the liver detection probe body of the present invention in conjunction with each other; Figure 8 This is an exploded view of the installation components of the present invention.

[0021] In the diagram: 21. Rotating seat; 22. Flipping seat; 23. First threaded rod; 24. Flipping frame; 25. First slider; 26. Liver detection probe body; 27. Data transmission line; 31. Positioning seat; 32. Second threaded rod; 33. Clamping plate; 41. Guide frame; 42. Second slider; 43. Pull ring; 44. Clamping ball; 45. First spring; 51. Limiting plate; 52. Third threaded rod; 53. Third slider; 54. Second spring; 55. Fourth slider; 61. Mounting plate; 62. Rotating shaft; 63. Torsion spring; 64. Flipping plate; 65. Rubber wheel; 66. Support plate; 67. Support plate. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 - Figure 8 This invention provides an embodiment of a probe pressure fixing device for liver elasticity detection, comprising a liver detection probe body 26, a data transmission line 27 fixedly connected to the liver detection probe body 26, a rotating seat 21, and a flipping seat 22 rotatably connected to the rotating seat 21. It also includes a flipping frame 24 fixedly connected to the flipping seat 22, a first threaded rod 23 rotatably connected to the flipping frame 24, a first slider 25 slidably connected to the flipping frame 24 and threadedly connected to the first threaded rod 23, a clamping assembly mounted on the rotating seat 21, an tilting assembly mounted on the first slider 25, a pressure adjusting assembly mounted on the tilting assembly, and a mounting assembly mounted on the pressure adjusting assembly. The rotation of the first threaded rod 23 can precisely drive the first slider 25 to move linearly along the flipping frame 24. Combined with the rotatable rotating seat 21 and flipping seat 22, this achieves a first-level coarse adjustment of the probe position, laying the foundation for subsequent fine angle and pressure adjustments. The entire device constitutes a complete mechanical system from bed clamping and spatial posture adjustment to contact pressure control.

[0024] Please see Figure 1 - Figure 3A further solution based on this embodiment is as follows: the clamping assembly includes a positioning seat 31, a second threaded rod 32 threadedly connected to the positioning seat 31, and a clamping plate 33 rotatably connected to the second threaded rod 32 and slidably connected to the positioning seat 31. The rotating seat 21 is mounted on the positioning seat 31. When the second threaded rod 32 rotates, it drives the clamping plate 33 to slide away from or towards the rotating seat 21. Rotating the second threaded rod 32 generates axial displacement, pushing the clamping plate 33 to form a stable clamp with the edge of the medical bed. This spiral clamping method can provide a self-locking function to ensure that the device will not loosen during the testing process.

[0025] Please see Figure 1 - Figure 3 A further solution based on this embodiment is as follows: the flipping seat 22 and the rotating seat 21, and the rotating seat 21 and the positioning seat 31 are all connected by controllable friction, so that the rotating seat 21 or the flipping seat 22 can be rotated to any angle and fixed at that angle. The controllable friction can be achieved by setting a pre-tightened friction plate in the rotating pair or by using a bushing structure with a locking knob, so that the operator can easily adjust and infinitely lock the horizontal rotation angle and the overall pitch angle of the probe. Friction plate structure: Multiple elastic friction plates and rigid pressure plates are sequentially installed at the journal of the rotating seat (21) and the flipping seat (22). An axial preload is applied by the end locking nut, so that the friction plates expand radially after being axially compressed, thereby forming a stable friction torque between the mating surfaces of the rotating pair. When the external force overcomes the friction torque, the angle can be adjusted. After the external force is removed, the friction torque prevents relative rotation, thus achieving stepless locking. A bushing structure with a locking knob: An open bushing is provided at the rotational connection between the rotating seat (21) and the positioning seat (31). The outer wall of the bushing is provided with a threaded section and fitted with a locking knob. The inner hole of the knob is a conical structure. When the knob is tightened, the conical surface compresses the bushing to shrink, so that a uniform radial clamping force is generated between the inner hole of the bushing and the rotating shaft, thereby locking the relative angle. After the knob is loosened, the bushing returns to its elasticity, and the rotating pair can rotate freely.

[0026] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 A further solution based on this embodiment is as follows: the tilting component includes a guide frame 41 fixedly connected to the first slider 25, a second slider 42 slidably connected to the guide frame 41, a pull ring 43 fixedly connected to the second slider 42, a retaining ball 44 slidably connected to the second slider 42, and a first spring 45 fixedly connected between the second slider 42 and the retaining ball 44. When the first spring 45 is compressed, the retaining ball 44 slides within the second slider 42. The pull ring 43 pulls the second slider 42, causing it to slide along the guide frame 41. The first spring 45 provides a constant clamping force to the retaining ball 44. The structure is simple and reliable.

[0027] Please see Figure 4 and Figure 5 A further solution based on this embodiment is as follows: an arc-shaped guide groove is provided on the guide frame 41, and the second slider 42 slides in the arc-shaped guide groove. The center of the arc-shaped guide groove corresponds to the ideal rotation center of the human body detection part that the probe needs to fit, so that the tilt adjustment of the probe can be performed around this center, which is more in line with ergonomic requirements, thereby making the liver detection probe body 26 perpendicular to the detection area.

[0028] Please see Figure 4 and Figure 5 A further solution based on this embodiment is as follows: the guide frame 41 is evenly provided with locking holes at multiple angles, and when the second slider 42 slides to a preset angle, the locking ball 44 is locked in the locking hole corresponding to the preset angle. The locking ball 44 is embedded in different locking holes under the action of the spring, which can realize the rapid and accurate positioning of the probe tilt angle, accompanied by a clear "click" positioning prompt.

[0029] Please see Figure 4 and Figure 6 A further embodiment of this solution is as follows: The pressure regulating component includes a limiting plate 51 fixedly connected to the second slider 42, a third threaded rod 52 rotatably connected to the limiting plate 51, a third slider 53 threadedly connected to the third threaded rod 52, a second spring 54 fixedly connected to the third slider 53, and a fourth slider 55 fixedly connected to the end of the second spring 54 away from the third slider 53. Both the third slider 53 and the fourth slider 55 slide on the limiting plate 51. Rotating the third threaded rod 52 drives the third slider 53 to move, which can change the initial compression of the second spring 54, thereby presetting the pressure finally applied to the probe. The second spring 54, as a pressure buffer and holding element, can absorb fluctuations caused by the patient's breathing or slight movement and maintain constant pressure contact.

[0030] Please see Figure 6 A further solution based on this embodiment is as follows: a through hole with a diameter larger than the outer diameter of the third threaded rod 52 is provided on the fourth slider 55, and the third threaded rod 52 passes through the through hole and does not contact the fourth slider 55, ensuring that the rotation of the third threaded rod 52 only drives the third slider 53 to move to compress the spring, and does not directly push the fourth slider 55, so that the pressure adjustment mechanism is independent of the direct displacement of the mounting components.

[0031] Please see Figure 4 , Figure 7 and Figure 8A further embodiment of this solution is as follows: the mounting assembly includes a mounting plate 61 fixedly connected to the fourth slider 55, a rotating shaft 62 rotatably connected to the mounting plate 61, a torsion spring 63 installed between the rotating shaft 62 and the mounting plate 61, a flipping plate 64 fixedly connected to the rotating shaft 62, a rubber wheel 65 rotatably connected to the flipping plate 64, a support plate 67 fixedly connected to the mounting plate 61, and a stop plate 66 fixedly connected to the support plate 67. The liver detection probe body 26 is installed between the rubber wheel 65 and the support plate 67 and is in contact with the stop plate 66. The torsion spring 63 provides a continuous closing torque for the flipping plate 64, causing the rubber wheel 65 to press against the probe. During installation and removal, the probe can be inserted and removed by radially moving the liver detection probe body 26 to squeeze the rubber wheel 65. The rubber wheel 65, made of rubber material, can increase the axial friction between the liver detection probe body 26 and the liver detection probe body 26, thus preventing the liver detection probe body 26 from sliding axially.

[0032] Please see Figure 7 and Figure 8 A further solution based on this embodiment is as follows: a through groove larger than the diameter of the data transmission line 27 is provided on the abutment plate 66, and when the connection end of the liver detection probe body 26 connected to the data transmission line 27 contacts the abutment plate 66, the data transmission line 27 passes through the through groove. The through groove provides a dedicated routing path for the data transmission line 27, which can prevent the cable from bending and squeezing when the probe contacts the skin, thus avoiding damage. It can also ensure that the probe end face is accurately attached to the positioning surface of the abutment plate 66, ensuring the accuracy of pressure transmission. Furthermore, it can hold the liver detection probe body 26 in place, preventing the liver detection probe body 26 from sliding axially when it contacts the human skin.

[0033] Working Principle: When in operation, this device first securely clamps itself to the edge of the medical bed using the positioning seat 31 and clamping plate 33 in the clamping assembly. By manually adjusting the relative rotation angle between the rotating seat 21 and the positioning seat 31, and the relative flipping angle between the flipping seat 22 and the rotating seat 21, the probe can be initially positioned approximately above the detection area. Next, rotating the first threaded rod 23 drives the first slider 25 and all its components to rise and fall along the flipping frame 24, coarsely adjusting the probe height. Then, pulling the second slider 42 in the tilting assembly via the pull ring 43 slides along the arc-shaped guide groove of the guide frame 41, adjusting the probe around the preset center to the required tilt angle. The probe is then held in place by the locking ball 44 and... After the locking mechanism is engaged and the angle is determined, the third threaded rod 52 in the pressure regulating assembly is rotated to drive the third slider 53 to move and precisely compress the second spring 54, thereby setting the expected contact pressure of the probe on the skin. Finally, the liver detection probe body 26 squeezes the rubber wheel 65, and then the liver detection probe body 26 is clamped between the rubber wheel 65 and the support plate 67, so that its connecting end contacts the abutment plate 66. At the same time, the data transmission line 27 passes through the through groove. Under the action of the torsion spring 63, the probe is gently and firmly clamped between the rubber wheel 65 and the support plate 67. At this time, under the buffer and constant force of the second spring 54, the probe is stably attached to the human body detection site with the set pressure and angle.

[0034] 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 variations 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. A probe pressure fixing device for liver elasticity detection, comprising a liver detection probe body (26), a data transmission line (27) fixedly connected to the liver detection probe body (26), a rotating seat (21), and a flip seat (22) rotatably connected to the rotating seat (21), characterized in that: It also includes a flipping frame (24) fixedly connected to the flipping seat (22), a first threaded rod (23) rotatably connected to the flipping frame (24), a first slider (25) slidably connected to the flipping frame (24) and threadedly connected to the first threaded rod (23), a clamping assembly mounted on the rotating seat (21), an tilting assembly mounted on the first slider (25), a pressure regulating assembly mounted on the tilting assembly, and a mounting assembly mounted on the pressure regulating assembly.

2. The probe pressure fixing device for liver elasticity detection according to claim 1, characterized in that: The clamping assembly includes a positioning seat (31), a second threaded rod (32) threaded to the positioning seat (31), and a clamping plate (33) rotatably connected to the second threaded rod (32) and slidably connected to the positioning seat (31). A rotating seat (21) is mounted on the positioning seat (31). When the second threaded rod (32) rotates, it drives the clamping plate (33) to slide away from or towards the rotating seat (21).

3. The probe pressure fixing device for liver elasticity detection according to claim 2, characterized in that: The rotating seat (21) and the rotating seat (22) are engaged by controllable friction, so that the rotating seat (21) or the rotating seat (22) can rotate to any angle and be fixed at that angle.

4. The probe pressure fixing device for liver elasticity detection according to claim 1, characterized in that: The tilting assembly includes a guide frame (41) fixedly connected to the first slider (25), a second slider (42) slidably connected to the guide frame (41), a pull ring (43) fixedly connected to the second slider (42), a ball (44) slidably connected to the second slider (42), and a first spring (45) fixedly connected between the second slider (42) and the ball (44). When the first spring (45) is compressed, the ball (44) slides within the second slider (42).

5. The probe pressure fixing device for liver elasticity detection according to claim 4, characterized in that: An arc-shaped guide groove is provided on the guide frame (41), and the second slider (42) slides in the arc-shaped guide groove.

6. The probe pressure fixing device for liver elasticity detection according to claim 4, characterized in that: The guide frame (41) has evenly spaced holes at multiple angles, and when the second slider (42) slides to a preset angle, the ball (44) engages in the hole corresponding to the preset angle.

7. The probe pressure fixing device for liver elasticity detection according to claim 4, characterized in that: The pressure regulating assembly includes a limiting plate (51) fixedly connected to the second slider (42), a third threaded rod (52) rotatably connected to the limiting plate (51), a third slider (53) threadedly connected to the third threaded rod (52), a second spring (54) fixedly connected to the third slider (53), and a fourth slider (55) fixedly connected to the end of the second spring (54) away from the third slider (53). Both the third slider (53) and the fourth slider (55) slide on the limiting plate (51).

8. The probe pressure fixing device for liver elasticity detection according to claim 7, characterized in that: The fourth slider (55) has a through hole with a diameter larger than the outer diameter of the third threaded rod (52), and the third threaded rod (52) passes through the through hole and does not contact the fourth slider (55).

9. A probe pressure fixing device for liver elasticity detection according to claim 7, characterized in that: The mounting assembly includes a mounting plate (61) fixedly connected to the fourth slider (55), a rotating shaft (62) rotatably connected to the mounting plate (61), a torsion spring (63) installed between the rotating shaft (62) and the mounting plate (61), a flip plate (64) fixedly connected to the rotating shaft (62), a rubber wheel (65) rotatably connected to the flip plate (64), a support plate (67) fixedly connected to the mounting plate (61), and a stop plate (66) fixedly connected to the support plate (67). The liver detection probe body (26) is installed between the rubber wheel (65) and the support plate (67) and is in contact with the stop plate (66).

10. A probe pressure fixing device for liver elasticity detection according to claim 9, characterized in that: The plate (66) has a through groove larger than the diameter of the data transmission line (27), and when the connection end of the liver detection probe body (26) connected to the data transmission line (27) comes into contact with the plate (66), the data transmission line (27) passes through the through groove.

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