An auxiliary device for musculoskeletal examination

Abstract

The application discloses a kind of auxiliary devices for musculoskeletal examination, belong to medical instrument field, including pressure tank and clamping device, the clamping device includes gripping portion and clamping portion, the clamping portion is hingedly arranged at the bottom end of gripping portion, the gripping portion includes frame and traction rod, the traction rod is longitudinally slidably arranged inside frame and passes through frame bottom wall, the adjusting rod center is hingedly arranged at the bottom end of traction rod, spring one is arranged between the top end of traction rod and frame top wall, the top end of traction rod is provided with hinged groove, handle bar is hingedly arranged in the hinged groove, the handle bar is centrally arranged, the frame bottom wall is also provided with reserved slot.The application makes the constant contact pressure of probe, effectively avoids soft tissue deformation, while quickly releasing pressure and damping positioning, protects the safety of probe, one-handed integrated control, convenient and efficient operation, and simple structure, good adaptability.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically referring to an auxiliary device for musculoskeletal examination. Background Technology

[0002] Musculoskeletal examination is an important imaging technique for assessing superficial soft tissue diseases such as muscles, tendons, ligaments, and peripheral nerves. During the examination, the probe needs to maintain appropriate contact pressure with the skin. If the pressure is too high, it will compress superficial blood vessels and soft tissues, leading to distortion of tissue morphology and affecting the display of lesions and assessment of blood flow signals. If the pressure is too low, the coupling will be poor and the image quality will decrease. Currently, in clinical practice, the probe is mostly operated by the physician by hand, and the amount of pressure applied by the probe depends entirely on the experience of the medical staff. During the examination, it is constantly manually adjusted according to the feedback from the image content. Prolonged examination can easily lead to hand fatigue, making it difficult to maintain stable pressure. There are large differences between different operators, resulting in poor repeatability of examination results.

[0003] Some existing probe-assisted positioning devices use elastic elements such as springs to provide contact force. However, the spring force changes with displacement and cannot provide constant pressure. Therefore, there is an urgent need for an auxiliary device for musculoskeletal examination that can provide constant contact pressure, prevent excessive compression of soft tissue, quickly release pressure and maintain probe position when the probe is removed from the patient, and facilitate one-handed operation. Summary of the Invention

[0004] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides an auxiliary device for musculoskeletal examination, which effectively solves the problem that there is currently a lack of examination auxiliary devices on the market that can stably provide constant pressure.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides an auxiliary device for musculoskeletal examination, including a pressure box and a clamping device. The clamping device includes a gripping part and a clamping part. The clamping part is hinged to the bottom end of the gripping part. The gripping part includes a frame and a traction rod. The traction rod is slidably disposed on the inner side of the frame and passes through the bottom wall of the frame. The center adjustment rod is hinged to the bottom end of the traction rod. A spring is provided between the top end of the traction rod and the top wall of the frame. A hinge groove is opened at the top end of the traction rod. A handle is hinged in the hinge groove. The handle is centrally located. A reserved groove is also opened in the bottom wall of the frame.

[0006] Furthermore, the clamping part includes an adjusting rod and a pressure telescopic rod. The pressure telescopic rod is located at the bottom of the adjusting rod and includes a sleeve rod and a sliding rod. The sliding rod is slidably located at the bottom end of the sleeve rod and fits against the inner wall of the sleeve rod. A connecting pipe is provided on the side wall of the adjusting rod. An air pipe is also provided on the pressure box, and the air pipe connects the pressure box and the connecting pipe. Elastic telescopic rods are symmetrically provided at the bottom end of the sliding rod, and a clamping rod is provided at the end of the elastic telescopic rod.

[0007] In the initial state, the first spring is in equilibrium. The two ends of the handle are connected to the two ends of the adjusting rod via a connecting rope. The connecting rope passes through a pre-drilled groove. Medical personnel can grasp the top of the frame with their thumbs and the two ends of the handle with their four fingers, which can control the handle to rotate slightly clockwise and counterclockwise. This, in turn, drives the adjusting rod to rotate via the connecting rope, controlling the angle of the grip. If the two ends of the handle are pulled simultaneously, the elasticity of the first spring can be overcome, and the clamping part can be lifted upwards.

[0008] Furthermore, the top and bottom walls of the connecting pipe are respectively provided with through grooves, the through grooves penetrate the connecting pipe vertically, a valve plate is slidably provided in the through grooves, and a trigger plate is also provided on the bottom wall of the frame, the trigger plate is located directly above the connecting pipe.

[0009] Furthermore, the valve plate includes a sealing plate, which is slidably disposed within the through groove and fits against the inner wall of the through groove. The height of the sealing plate is greater than the diameter of the connecting pipe. A pressing plate is provided at the top of the valve plate, and a spring is provided between the pressing plate and the top wall of the connecting pipe. An air passage is opened on the side of the sealing plate away from the opening of the connecting pipe. The air passage is arranged in a three-way configuration. Preferably, in the initial state, one end of the air passage is located in the connecting pipe on the side away from the opening of the connecting pipe, and the other end of the air passage is located in the through groove on the bottom wall of the connecting pipe. Between the inner walls of the sealing plate and the other end of the air passage located inside the connecting pipe near the opening of the connecting pipe, when the pressing plate is pressed down, the end of the air passage originally located inside the connecting pipe away from the opening of the connecting pipe remains inside the connecting pipe; the end of the air passage originally located between the inner walls of the bottom wall groove of the connecting pipe is outside the connecting pipe; and the end of the air passage originally located inside the connecting pipe near the opening of the connecting pipe is located between the inner walls of the bottom wall groove of the connecting pipe. The side wall of the sealing plate is provided with a limiting block, which can prevent the sealing plate from falling out.

[0010] In the initial state, the air passage connects to the connecting pipes on both sides of the sealing plate. When the control clamp is pulled upward, the connecting pipes are disconnected, and the part of the connecting pipe on the side of the sealing plate away from the opening of the connecting pipe is connected to the outside.

[0011] Furthermore, the pressure box is equipped with an air pump, which can regulate the air pressure inside the pressure box.

[0012] In this process, medical staff insert the probe between the clamping rods and pump gas into the pressure chamber using an air pump. The pressure is transmitted through the air tube, connecting tube, and sleeve rod to the sliding rod and the probe installed at the bottom, thus making the probe fit the patient's body. The telescopic structure of the pressure telescopic rod, combined with the air pressure, ensures that the probe fits tightly against the patient's body. The size of the sealed space changed by the sliding rod extending or retracting from the sleeve rod is negligible compared to the internal volume of the pressure chamber, and has almost no effect on the gas pressure, thus making the pressure applied by the probe to the patient's body constant.

[0013] Furthermore, by pulling the handle lever, the connection between the pressure telescopic rod and the pressure box is disconnected, and the airway is connected to the pressure telescopic rod and the outside world, causing it to lose internal pressure. The damping between the slide rod and the sleeve rod fixes the position of the slide rod, making it easy for medical staff to move the probe when it is not in contact with the patient, preventing it from being pushed outward by air pressure after losing the external inward pressure, thus protecting the probe.

[0014] The musculoskeletal examination auxiliary device provided by this invention has the following advantages compared with the prior art: 1. Constant contact pressure effectively avoids soft tissue deformation: The pressure chamber is filled with air by an air pump. The gas enters the pressure telescopic rod through the air tube and connecting tube, pushing the slide rod holding the probe downward. The volume of the pressure chamber is much larger than the gas volume change caused by the movement of the slide rod inside the pressure telescopic rod. The air pressure fluctuation is minimal, and the pressure applied by the probe to the patient's skin remains constant. This fundamentally avoids the compression and deformation of superficial soft tissue caused by excessive pressure during manual operation, ensuring that the tissue morphology is displayed realistically and significantly improving the image quality and diagnostic accuracy.

[0015] 2. Rapid pressure relief and damping positioning to protect probe safety: When it is necessary to temporarily remove the probe from the patient, medical staff pull the handle, the grip traction rod moves upward, the trigger plate presses the valve plate, changing the airway connection status, the pressure box and the pressure telescopic rod disconnect, and the pressure telescopic rod is connected to the outside atmosphere and depressurized; at this time, the damping effect between the slide rod and the inner wall of the sleeve rod fixes the position of the slide rod, preventing the probe from being quickly pushed out by residual air pressure, realizing safe transfer and temporary positioning, and effectively avoiding the risk of probe popping out and being damaged.

[0016] 3. Single-handed integrated control, convenient and efficient operation: Hold the top of the frame and operate the handle with your fingers to lift and move the probe up and down and release pressure for positioning. You can also rotate the handle to drive the adjustment rod to swing via the connecting rope to flexibly adjust the probe's pitch angle. There is no need to make large adjustments to the whole invention and probe. The operation is intuitive, significantly reducing the doctor's hand fatigue and improving examination efficiency and operation smoothness.

[0017] 4. Simple structure and good adaptability: This device adopts a mechanical-pneumatic composite structure to achieve constant pressure, pressure relief and positioning functions. It does not contain complex electronic components, has high reliability, is easy to disinfect and maintain, and is suitable for clinical environments. The clamping rod at the end of the elastic telescopic rod can flexibly adapt to different probe models, and has good versatility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an auxiliary device for musculoskeletal examination provided by the present invention; Figure 2 This is a schematic diagram of the clamping device provided by the present invention; Figure 3 A schematic diagram of the clamping device provided by the present invention from another perspective; Figure 4 A schematic diagram of the structure of the gripping part provided by the present invention; Figure 5 A schematic diagram of the clamping part provided by the present invention; Figure 6 A cross-sectional view of the clamping part provided by the present invention; Figure 7 for Figure 6 A magnified view of part A in the image; Figure 8 This is a schematic diagram of the valve plate provided by the present invention.

[0019] Among them, 1. Pressure box, 2. Clamping device, 3. Grip part, 4. Clamping part, 5. Connecting rope, 101. Air pump, 102. Air pipe, 301. Frame, 302. Traction rod, 303. Hinge groove, 304. Spring one, 305. Handle rod, 306. Reserved groove, 307. Trigger plate, 401. Adjusting rod, 402. Pressure telescopic rod, 403. Sleeve rod, 404. Slide rod, 405. Connecting pipe, 406. Elastic telescopic rod, 407. Clamping rod, 408. Through groove, 409. Valve plate, 410. Sealing plate, 411. Air passage, 412. Pressing plate, 413. Spring two, 414. Limiting block.

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] like Figures 1-8 As shown, the present invention provides an auxiliary device for musculoskeletal examination, including a pressure box 1 and a clamping device 2. The clamping device 2 includes a gripping part 3 and a clamping part 4. The clamping part 4 is hinged to the bottom end of the gripping part 3. The gripping part 3 includes a frame 301 and a traction rod 302. The traction rod 302 is longitudinally slidably disposed inside the frame 301 and passes through the bottom wall of the frame 301. The adjusting rod 401 is centrally hinged to the bottom end of the traction rod 302. A spring 304 is provided between the top end of the traction rod 302 and the top wall of the frame 301. A hinge groove 303 is provided at the top end of the traction rod 302. A handle 305 is hinged in the hinge groove 303. The handle 305 is centrally disposed. A reserved groove 306 is also provided on the bottom wall of the frame 301.

[0024] The clamping part 4 includes an adjusting rod 401 and a pressure telescopic rod 402. The pressure telescopic rod 402 is located at the bottom of the adjusting rod 401 and includes a sleeve rod 403 and a sliding rod 404. The sliding rod 404 is slidably located at the bottom end of the sleeve rod 403 and fits against the inner wall of the sleeve rod 403. A connecting pipe 405 is provided on the side wall of the adjusting rod 401. An air pipe 102 is also provided on the pressure box 1. The air pipe 102 connects the pressure box 1 and the connecting pipe 405. An elastic telescopic rod 406 is symmetrically provided at the bottom end of the sliding rod 404, and a clamping rod 407 is provided at the end of the elastic telescopic rod 406.

[0025] In the initial state, spring 304 is in equilibrium. The two ends of handle 305 are connected to the two ends of adjusting rod 401 via connecting rope 5. Connecting rope 5 passes through reserved slot 306. Medical staff can grasp the top of frame 301 with their thumbs and the two ends of handle 305 with their four fingers, which can control handle 305 to rotate slightly clockwise and counterclockwise. This will drive adjusting rod 401 to rotate via connecting rope 5, thus controlling the angle of grip part 3. If the two ends of handle 305 are pulled at the same time, the elasticity of spring 304 can be overcome, and clamping part 4 can be lifted upward.

[0026] The top and bottom walls of the connecting pipe 405 are respectively provided with through grooves 408, which pass through the connecting pipe 405 from top to bottom. A valve plate 409 is slidably provided in the through groove 408. The bottom wall of the frame 301 is also provided with a trigger plate 307, which is located directly above the connecting pipe 405.

[0027] The valve plate 409 includes a sealing plate 410, which is slidably disposed within a through groove 408. The sealing plate 410 is in contact with the inner wall of the through groove 408, and its height is greater than the diameter of the connecting pipe 405. A pressing plate 412 is provided at the top of the valve plate 409, and a spring 413 is provided between the pressing plate 412 and the top wall of the connecting pipe 405. An air passage 411 is provided on the side of the sealing plate 410 away from the opening of the connecting pipe 405. The air passage 411 is a three-way connection. Preferably, in the initial state, one end of the air passage 411 is located inside the connecting pipe 405 on the side away from the opening of the connecting pipe 405, and the other end of the air passage 411 is located on the side of the connecting pipe 405 away from the opening of the connecting pipe 405. Between the inner walls of the bottom wall through groove 408 and the other end of the air passage 411 located inside the connecting pipe 405 near the opening of the connecting pipe 405, when the pressing plate 412 is pressed down, the end of the air passage 411 that was originally located inside the connecting pipe 405 away from the opening of the connecting pipe 405 is still located inside the connecting pipe 405, the end of the air passage 411 that was originally located between the inner walls of the bottom wall through groove 408 of the connecting pipe 405 is located outside the connecting pipe 405, and the end of the air passage 411 that was originally located inside the connecting pipe 405 near the opening of the connecting pipe 405 is located between the inner walls of the bottom wall through groove 408 of the connecting pipe 405. The sealing plate 410 has a limiting block 414 on its side wall.

[0028] In the initial state, the air passage 411 is connected to the connecting pipes 405 on both sides of the sealing plate 410. When the control clamping part 4 is pulled upward, the connecting pipes 405 are disconnected, and the part of the connecting pipes 405 on the side of the sealing plate 410 away from the opening of the connecting pipes 405 is connected to the outside.

[0029] The pressure box 1 is equipped with an air pump 101, which can regulate the air pressure inside the pressure box 1.

[0030] By pulling the handle lever 305, the connection between the pressure telescopic rod 402 and the pressure box 1 is disconnected, and the airway 411 connects the pressure telescopic rod 402 to the outside, causing it to lose internal pressure. The damping between the slide rod 404 and the sleeve rod 403 fixes the position of the slide rod 404, making it easy for medical staff to transfer the probe when the probe is not in contact with the patient, preventing it from being quickly pushed outward by air pressure after losing external inward pressure, thereby protecting the probe.

[0031] In practical use, first, fix the probe between the clamping rods 407. The elastic telescopic rod 406 retracts inward, and the clamping rods 407 fix the probe. Then, control the air pump 101 to pressurize the pressure box 1. The pressure inside the pressure box 1 can be flexibly adjusted according to the examination site and the patient's body shape. During this process, the medical staff simultaneously pulls and holds both ends of the handle 305 upward with four fingers, pulling the handle 305 to move the clamping part 4, which is hinged to the bottom of the traction rod 302, upward. During this process, the pressing plate 412 contacts the trigger plate. 307. Trigger plate 307 pushes valve plate 409 downward, disconnecting pressure box 1 from pressure telescopic rod 402. It is then fixed by damping between sleeve rod 403 and slide rod 404. After pressurization, the probe is moved to the examination site. Then, handle rod 305 is released, traction rod 302 and clamping part 4 are reset, valve plate 409 is reset, and pressure box 1 and pressure telescopic rod 402 are reconnected and sealed. Air pressure pushes slide rod 404 and probe onto the patient's body. When the probe is moved, pressure telescopic rod 402 slightly... During extension and retraction, the volume change of the sealed space inside the pressure telescopic rod 402 is negligible compared to the overall capacity of the pressure box 1. The pressure change within this sealed space of the pressure box 1 and the pressure telescopic rod 402 is minimal and will not significantly affect the pressure applied to the probe. This allows the probe to provide a constant pressure in the area, facilitating examination. When the probe angle needs to be adjusted, medical personnel can rotate the handle 305 clockwise or counterclockwise. The handle 305 drives the adjusting rod 401 to rotate synchronously via the connecting rope 5, thereby quickly adjusting the probe's orientation angle with minimal movement and reducing the fatigue of medical personnel. When the examination is completed or the next examination point needs to be changed, and the probe needs to be removed from the patient's body, the handle 305 is pulled again to disconnect the connection between the pressure box 1 and the pressure telescopic rod 402. At the same time, the airway 411 controls the pressure telescopic rod 402 to connect to the outside, causing the pressure inside the pressure telescopic rod 402 to depressurize and return to the position where the probe is fixed by the damping between the slide rod 404 and the sleeve rod 403. This prevents the probe from being ejected by excessive pressure after the pressure is lost, which could damage the slide rod 404.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An auxiliary device for musculoskeletal examination, characterized in that: The device includes a pressure box (1) and a clamping device (2). The pressure box (1) is equipped with an air pump (101). The clamping device (2) includes a gripping part (3) and a clamping part (4). The clamping part (4) is hinged to the bottom end of the gripping part (3). The clamping part (4) includes an adjusting rod (401) and a pressure telescopic rod (402). The pressure telescopic rod (402) is located at the bottom of the adjusting rod (401). The pressure telescopic rod (402) includes a sleeve rod (403) and a sliding rod (404). The slide rod (404) is slidably disposed at the bottom end of the sleeve rod (403). The slide rod (404) is in contact with the inner wall of the sleeve rod (403). The side wall of the adjusting rod (401) is provided with a connecting pipe (405). The pressure box (1) is also provided with an air pipe (102). The air pipe (102) connects the pressure box (1) and the connecting pipe (405). The bottom end of the slide rod (404) is symmetrically provided with elastic telescopic rods (406). The end of the elastic telescopic rod (406) is provided with a clamping rod (407).

2. The auxiliary device for musculoskeletal examination according to claim 1, characterized in that: The grip (3) includes a frame (301) and a traction rod (302). The traction rod (302) is slidably disposed on the inner side of the frame (301) and passes through the bottom wall of the frame (301). The adjusting rod (401) is centrally hinged to the bottom end of the traction rod (302). A spring (304) is provided between the top end of the traction rod (302) and the top wall of the frame (301). In the initial state, the spring (304) is in a balanced state. A hinge groove (303) is provided at the top end of the traction rod (302). A handle (305) is hinged in the hinge groove (303). The handle (305) is centrally disposed. A reserved groove (306) is also provided on the bottom wall of the frame (301). The two ends of the handle (305) are connected to the two ends of the adjusting rod (401) through a connecting rope (5). The connecting rope (5) passes through the reserved groove (306).

3. The auxiliary device for musculoskeletal examination according to claim 2, characterized in that: The top and bottom walls of the connecting pipe (405) are respectively provided with through grooves (408), the through grooves (408) pass through the connecting pipe (405) from top to bottom, and a valve plate (409) is slidably provided in the through grooves (408).

4. The auxiliary device for musculoskeletal examination according to claim 3, characterized in that: The bottom wall of the frame (301) is also provided with a trigger plate (307), which is located directly above the connecting pipe (405).

5. The auxiliary device for musculoskeletal examination according to claim 4, characterized in that: The valve plate (409) includes a sealing plate (410), which is slidably disposed in the through groove (408). The sealing plate (410) is in contact with the inner wall of the through groove (408), and the height of the sealing plate (410) is greater than the diameter of the connecting pipe (405).

6. The auxiliary device for musculoskeletal examination according to claim 5, characterized in that: The valve plate (409) is provided with a pressing plate (412) at the top, and a spring (413) is provided between the pressing plate (412) and the top wall of the connecting pipe (405).

7. The auxiliary device for musculoskeletal examination according to claim 6, characterized in that: An air passage (411) is provided on the side of the sealing plate (410) away from the opening of the connecting pipe (405). The air passage (411) is a three-way connection. When the pressing plate (412) is not pressed by external force, the air passage (411) connects the connecting pipes (405) on both sides of the sealing plate (410). When the sealing plate (410) is pressed down, the connecting pipes (405) on both sides of the sealing plate (410) are disconnected, and the air passage (411) connects the side of the sealing plate (410) away from the opening of the connecting pipe (405) to the outside.

8. The auxiliary device for musculoskeletal examination according to claim 7, characterized in that: The sealing plate (410) has a limiting block (414) on its side wall.

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