Musculoskeletal ultrasonic fixing device
By designing a musculoskeletal ultrasound fixation device, the problem of patient pain caused by difficulty in maintaining body position during examination was solved, achieving flexible support and stable fixation, and improving the stability and convenience of the examination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 川北医学院附属医院
- Filing Date
- 2025-02-10
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional diagnostic methods such as X-ray imaging and CT scans have problems such as low resolution, high radiation, or poor soft tissue visualization in musculoskeletal examinations, and patients suffer more pain during long examinations because they cannot maintain their position.
A musculoskeletal ultrasound fixation device was designed, including components such as a sitting board, a backrest, and a fixation frame. By flexibly adjusting the support plate and threaded cylinder structure, it provides multi-angle support and fixation, and uses Velcro to fix the patient's limbs to ensure stable examination posture.
This improves the stability of the examination, avoids the soreness caused by patients having no point of support for a long time, and enhances the convenience and effectiveness of the examination.
Smart Images

Figure CN224206836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ultrasound examination technology, specifically to a musculoskeletal ultrasound fixation device. Background Technology
[0002] With increasing emphasis on personal health, more and more people are paying attention to musculoskeletal health. Injuries to the musculoskeletal system are becoming increasingly common due to environmental factors and daily activities. Clinically, timely diagnosis and treatment are crucial for musculoskeletal injuries. Traditional diagnostic methods primarily involve X-ray imaging, but this method has low resolution for musculoskeletal soft tissues and involves significant radiation, limiting its clinical application. CT scans offer relatively poor visualization of muscle soft tissue structures. In contrast, ultrasound examination offers numerous advantages in diagnosing musculoskeletal injuries, including being non-invasive, radiation-free, quick and convenient, highly repeatable in the short term, providing real-time imaging, and offering high resolution for soft tissues. Its clinical applications are wide-ranging. Muscle ultrasound can provide all the information obtained from MRI (Magnetic Resonance Imaging), and real-time ultrasound examination can obtain dynamic images of muscle contraction and relaxation, thus possessing superiority. Ultrasound is simple, easy to perform, and inexpensive. It is particularly useful in follow-up for injury rehabilitation; continuous ultrasound examinations can evaluate the degree and stage of recovery, reducing the risk of recurrence.
[0003] When performing musculoskeletal ultrasound examinations, it is generally necessary to maintain a certain body position. For example, when examining the long head tendon of the biceps brachii in the shoulder joint, it is recommended that the patient's arm be slightly internally rotated (towards the opposite knee), with the elbow flexed at 90° and the palm facing upward. The long head tendon of the biceps brachii is located between the greater and lesser tuberosities of the humerus. The short and long axes are used to show the movement of the probe up and down. Moving the probe upward shows the long head tendon entering the shoulder joint, and moving it downward shows the connection between the muscle and tendon (at the level of the pectoralis major tendon). When examining the subscapularis tendon in the shoulder joint, it is recommended that the patient's upper limb be positioned... With the elbow fixed to the iliac crest, the subscapularis tendon and its attachment to the lesser tubercle of the humerus are visualized (slight supination of the hand is more conducive to visualization). The long and short axes of the tendon should be displayed during passive internal and external rotation of the upper arm. The probe should be slid up and down to show the full width of the tendon. The above-mentioned examinations are all relatively common. However, during the examination, patients may not be able to maintain the standard position due to muscle soreness or other discomfort, especially when the examination is long. Maintaining the position without support for the limbs can increase the patient's pain and cause them to move their limbs involuntarily, affecting the examination.
[0004] Therefore, there is a need for a musculoskeletal ultrasound fixation device that can be flexibly adjusted according to the examination position, so as to support and fix the patient's limbs, allowing the patient to maintain a standard position while increasing support points and avoiding soreness caused by the patient's limbs having nowhere to put weight. Utility Model Content
[0005] To address the aforementioned problems, this invention proposes a musculoskeletal ultrasound fixation device, which features flexible operation, simple structure, and strong practicality.
[0006] To achieve the above objectives, the present invention proposes the following specific solutions:
[0007] A musculoskeletal ultrasound fixation device includes a seat plate, a support frame fixedly mounted on the bottom of the seat plate, a backrest plate engaged at one end of the seat plate, and a fixing frame inserted into the top of the backrest plate. The fixing frame includes an insert plate, a support plate, a threaded cylinder, a screw, and a fixing sleeve. The insert plate is inserted into the inner side of the backrest plate. A connecting rod is fixedly mounted on the top surface of the insert plate. A rotating plate is fixedly mounted on the top of the connecting rod. A threaded groove is formed on the top of the rotating plate. A tightening bolt is threadedly connected to the inner side of the threaded groove. A support plate is engaged on the outer side of the rotating plate. A sliding groove is formed on the inner side of the support plate. Connecting grooves are symmetrically formed on the upper and lower sides of the sliding groove. The rotating plate is engaged within the sliding groove. The connecting rod passes through the bottom of the connecting groove. The tightening bolt passes through the top of the connecting groove. The top dimension of the tightening bolt is larger than the width dimension of the connecting groove. A threaded cylinder is fixedly mounted on one end of the bottom surface of the support plate. A screw is threadedly connected to the inner side of the lower end of the threaded cylinder. A fixing sleeve is movably engaged at the bottom of the screw.
[0008] As a preferred technical solution of the musculoskeletal ultrasound fixation device of this utility model, the fixation sleeve includes a rigid arc plate, a connecting block is fixedly provided in the middle of the top surface of the rigid arc plate, an inverted T-shaped slot is opened in the middle of the connecting block, an inverted T-shaped rotating plate is fixedly provided at the bottom of the screw, the inverted T-shaped rotating plate is movably engaged with the inner side of the inverted T-shaped slot, a connecting soft strap is fixedly connected to one end of the rigid arc plate, a limiting ring is fixedly provided at the other end of the rigid arc plate, and one end of the connecting soft strap passes through the limiting ring.
[0009] As a preferred technical solution of the musculoskeletal ultrasound fixation device of this utility model, a first Velcro fastener is fixedly provided at one end of the side wall of the connecting soft strap, and a second Velcro fastener is fixedly provided at the other end of the side wall of the connecting soft strap.
[0010] As a preferred technical solution of the musculoskeletal ultrasound fixation device of this utility model, a storage groove is provided in the middle of one side wall of the support plate, a moving groove is provided in the middle of one side wall of the storage groove, and limiting grooves are symmetrically provided on both inner walls of the moving groove. The insert plate is inserted into the inner side of the storage groove, and a spring groove is provided in the lower side wall of the insert plate. A connecting spring is fixedly provided in the inner side of the spring groove, and a locking plate is fixedly provided at one end of the connecting spring. The two ends of the locking plate are engaged in the inner side of the limiting groove, and an operating port is provided on the locking plate.
[0011] As a preferred technical solution of the musculoskeletal ultrasound fixation device of this utility model, the lower end of the back plate is symmetrically provided with a second polygonal cylinder on both sides. The outer wall of the second polygonal cylinder is cylindrical, and the inner side of the second polygonal cylinder is a polygonal hole.
[0012] As a preferred technical solution of the musculoskeletal ultrasound fixation device of this utility model, a rotating groove is provided at one end of the seat plate, the lower end of the backrest is engaged with the inner side of the rotating groove, and connecting holes are provided on both sides of the inner wall of the rotating groove. A first polygonal cylinder is fixedly provided at one end of the inner wall of the connecting hole, and a second polygonal cylinder is inserted into the inner side of the connecting hole, with the second polygonal cylinder aligned with the first polygonal cylinder.
[0013] As a preferred technical solution of the musculoskeletal ultrasound fixation device of this utility model, a polygonal insert rod is inserted into the inner side of the first polygonal cylinder. The size of the polygonal insert rod is adapted to the inner size of the first polygonal cylinder, and the size of the polygonal insert rod is adapted to the inner size of the second polygonal cylinder. An operating plate is fixedly provided at one end of the polygonal insert rod.
[0014] As a preferred technical solution of the musculoskeletal ultrasound fixation device of this utility model, a soft pad is fixedly provided on the other side wall of the backing plate.
[0015] Compared with existing technologies, this utility model has the following advantages:
[0016] This invention utilizes a fixed frame, composed of an insert plate, a support plate, a threaded cylinder, a screw, and a fixing sleeve. The insert plate is inserted into the back of a seat, and the top of the insert plate movably engages with the support plate, allowing the support plate to rotate at the top of the insert plate. A connecting groove is provided on the support plate, allowing it to move at the top of the insert plate. This allows for flexible adjustment of the extension distance of the threaded cylinder at the end of the support plate. A screw is threaded into the inner side of the threaded cylinder, and the bottom of the screw movably engages with the fixing sleeve. During ultrasound examination, one end of the patient's limb is inserted into the inner side of the fixing sleeve for fixation. Rotating the adjusting screw within the threaded cylinder adjusts the height of the patient's limb. Adjusting the extension length of the support plate allows for movement of the patient's limb. After the patient's limb is positioned appropriately, the support plate is locked by tightening the bolt, thus fixing one end of the patient's limb. This design is flexible and convenient, improving the stability of the examination by fixing the patient's limb. It also allows the patient to maintain stability with the support of the fixing sleeve, preventing limb pain due to lack of support for extended periods, which could lead to involuntary movements that interfere with the ultrasound examination. Attached Figure Description
[0017] To better describe the technical solution of this utility model in detail, the present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;
[0019] Figure 2 This is a three-dimensional sectional view of the present invention;
[0020] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 For the present utility model Figure 2 Enlarged view of point B in the middle;
[0022] Figure 5 For the present utility model Figure 2 Enlarged view of point C in the middle;
[0023] Figure 6 For the present utility model Figure 2 Enlarged diagram of point D in the middle.
[0024] In the diagram: 1. Seat plate; 11. Rotating groove; 12. Connecting hole; 13. First polygonal cylinder; 14. Polygonal insert rod; 15. Operating panel; 2. Support frame; 3. Backrest; 31. Storage groove; 32. Moving groove; 33. Limiting groove; 34. Soft pad; 35. Second polygonal cylinder; 4. Fixing frame; 41. Insert plate; 411. Spring groove; 412. Connecting spring; 413. Clamping plate; 414. Operating port; 415. Connecting... 416. Connecting rod; 417. Rotating plate; 418. Threaded groove; 419. Tightening bolt; 42. Support plate; 421. Slide groove; 422. Connecting groove; 43. Threaded cylinder; 44. Screw; 441. Inverted T-shaped rotating plate; 45. Fixing sleeve; 451. Connecting block; 452. Inverted T-shaped slot; 453. Rigid arc plate; 454. Connecting soft strap; 455. First Velcro; 456. Second Velcro; 457. Limiting ring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Example
[0027] Please see Figure 1-6As shown, this utility model provides the following technical solution: a musculoskeletal ultrasound fixation device, including a seat 1, a support frame 2 fixedly mounted on the bottom of the seat 1, and a backrest 3 snapped onto one end of the seat 1, the overall structure being a common chair; symmetrical second polygonal cylinders 35 are provided on both sides of the lower end of the backrest 3, which can be configured as regular hexagonal cylinders, the outer wall of the second polygonal cylinder 35 is cylindrical, and the inner side of the second polygonal cylinder 35 has polygonal holes; see attached figure. Figure 2 and attached Figure 3 A rotating groove 11 is provided at one end of the seat plate 1. The lower end of the back plate 3 is engaged with the inner side of the rotating groove 11. Connecting holes 12 are provided on the inner walls of both sides of the rotating groove 11. A first polygonal cylinder 13 is fixedly provided at one end of the inner wall of the connecting hole 12. A second polygonal cylinder 35 is inserted into the inner side of the connecting hole 12 and can rotate inside the connecting hole 12. The second polygonal cylinder 35 is aligned with the first polygonal cylinder 13. A polygonal insert rod 14 is inserted into the inner side of the first polygonal cylinder 13. The size of the polygonal insert rod 14 is the same as the inner size of the first polygonal cylinder 13. The polygonal insert 14 is adapted to fit through the two polygonal cylinders. The size of the polygonal insert 14 is adapted to the inner size of the second polygonal cylinder 35. An operating plate 15 is fixedly provided at one end of the polygonal insert 14. A soft pad 34 is fixedly provided on the other side wall of the backrest 3. With the polygonal cylinders and inserts, when the patient uses the chair, the backrest 3 can be rotated after the polygonal insert 14 is pulled out. After rotating a certain angle, the two polygonal cylinders are aligned. Then, the polygonal insert 14 is inserted to fix and limit the two. The operation is convenient and makes it easy for the patient to sit or lie down.
[0028] Reference Figure 2 and Figure 6As shown, specifically, a fixing frame 4 is inserted into the top of the backing plate 3. The fixing frame 4 includes an insert plate 41, a support plate 42, a threaded cylinder 43, a screw 44, and a fixing sleeve 45. A threaded cylinder 43 is fixed to one end of the bottom surface of the support plate 42. A screw 44 is threadedly connected to the inner side of the lower end of the threaded cylinder 43. The screw 44 can be moved inside the threaded cylinder 43 by screwing, thereby adjusting the height of the bottom fixing sleeve 45. The bottom of the screw 44 is movably engaged with the fixing sleeve 45. The fixing sleeve 45 includes a rigid arc plate 453. A connecting block 451 is fixed to the middle of the top surface of the rigid arc plate 453. An inverted T-shaped slot 452 is opened in the middle of the connecting block 451. An inverted T-shaped rotating plate 441 is fixed to the bottom of the screw 44. The inverted T-shaped rotating plate 441 is movably engaged with the inner side of the inverted T-shaped slot 452, which allows the screw 44 to rotate. The rigid arc plate 453 is not affected by the patient's limb position. One end of the rigid arc plate 453 is fixedly connected to a connecting soft strap 454, and the other end of the rigid arc plate 453 is fixedly connected to a limiting ring 457. One end of the connecting soft strap 454 passes through the limiting ring 457. One end of the side wall of the connecting soft strap 454 is fixedly connected to a first Velcro 455, and the other end of the side wall of the connecting soft strap 454 is fixedly connected to a second Velcro 456. The patient's limb can be fixed by the adhesion of the two Velcros. When performing an ultrasound examination on the patient, the patient's limb can be passed through the fixing sleeve 45 and fixed by the Velcro. Then, the height of the fixing sleeve 45 can be adjusted by rotating the screw 44, thereby adjusting the height of the patient's limb. The adjustment is convenient and can provide a point of force for the patient's limb, making it easy to maintain the examination posture stably. In addition, the obstruction area of the patient's limb is small and does not affect the ultrasound examination.
[0029] Reference Figure 2 and Figure 5 As shown, specifically, the insert plate 41 is inserted into the inner side of the backing plate 3. A connecting rod 415 is fixedly provided on the top surface of the insert plate 41. A rotating plate 416 is fixedly provided on the top of the connecting rod 415. A threaded groove 417 is opened on the top of the rotating plate 416. A tightening bolt 418 is threadedly connected to the inner side of the threaded groove 417. A support plate 42 is engaged on the outer side of the rotating plate 416. A sliding groove 421 is opened on the inner side of the support plate 42. Connecting grooves 422 are symmetrically opened on the upper and lower sides of the sliding groove 421. The rotating plate 416 is engaged on the inner side of the sliding groove 421 and can rotate and slide within it. The connecting rod 415 passes through the bottom of the connecting groove 422, and the tightening bolt 418 passes through the top of the connecting groove 422. The top dimension of the tightening bolt 418 is larger than the width dimension of the connecting groove 422. After tightening the tightening bolt 418, the support plate 42 can be fixed to the top of the insert plate 41. When examining a patient, the position of the support plate 42 at the top of the insert plate 41 can be adjusted, thereby adjusting the position of the fixing sleeve 45 connected to the patient at the end. This facilitates the adjustment of the patient's limb position, making the adjustment flexible and convenient, and easy to support different limb positions of the patient.
[0030] Reference Figure 2 and Figure 4 As shown, a storage groove 31 is provided in the middle of one side wall of the support plate 3, and a moving groove 32 is provided in the middle of one side wall of the storage groove 31. Limiting grooves 33 are symmetrically provided on both inner walls of the moving groove 32. An insert plate 41 is inserted into the inner side of the storage groove 31 and can move within the storage groove 31. A spring groove 411 is provided on the lower side wall of the insert plate 41. A connecting spring 412 is fixedly provided inside the spring groove 411. A retaining plate 413 is fixedly provided at one end of the connecting spring 412. Pull the clamping plate 413 tight so that it is stably engaged inside the limiting groove 33. Both ends of the clamping plate 413 are engaged inside the limiting groove 33. An operation port 414 is provided on the clamping plate 413. When it is necessary to adjust the height of the overall fixing frame 4, the clamping plate 413 can be pulled outward to raise or lower the insert plate 41. After adjustment, the clamping plate 413 can be engaged inside the limiting groove 33 again. The operation is convenient and the insert plate 41 can be stored in a way that reduces the space occupied.
[0031] The working principle and usage process of this utility model are as follows: When a patient undergoes a musculoskeletal ultrasound examination, they sit on the seat board 1 in turn. Then, according to the examination requirements, the patient assumes the appropriate posture. Then, based on the posture of the patient's limbs, the height of the insert plate 41 on the backrest 3 is adjusted, the position of the support plate 42 at the top of the insert plate 41 is adjusted, and then the position of the screw 44 inside the threaded cylinder 43 is adjusted, so that the fixing sleeve 45 moves to the end of the patient's limb. Then, the patient's limb is passed through the fixing sleeve 45 and fixed with Velcro. Then, the support plate 42 is fixed to the top of the insert plate 41 by tightening the top bolt 418, thereby fixing the entire fixing frame 4, which can fix and limit the patient's limb, and at the same time provide support for the patient's limb, avoiding the situation that the patient is prone to soreness due to lack of support during long-term examination, and improving the stability of the examination.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A musculoskeletal ultrasound fixation device, comprising a sitting board (1), characterized in that: A support frame (2) is fixedly provided at the bottom of the seat plate (1). A backrest plate (3) is snapped onto one end of the seat plate (1). A fixing frame (4) is inserted into the top of the backrest plate (3). The fixing frame (4) includes an insert plate (41), a support plate (42), a threaded cylinder (43), a screw (44), and a fixing sleeve (45). The insert plate (41) is inserted into the inner side of the backrest plate (3). A connecting rod (415) is fixedly provided on the top surface of the insert plate (41). A rotating plate (416) is fixedly provided on the top of the connecting rod (415). A threaded groove (417) is opened on the top of the rotating plate (416). A tightening bolt (418) is threadedly connected to the inner side of the threaded groove (417). The outer side of the rotating plate (416) is... A support plate (42) is provided on the side. A sliding groove (421) is provided on the inner side of the support plate (42). A connecting groove (422) is symmetrically provided on the upper and lower sides of the sliding groove (421). A rotating plate (416) is engaged with the inner side of the sliding groove (421). A connecting rod (415) passes through the bottom of the connecting groove (422). A tightening bolt (418) passes through the top of the connecting groove (422). The top dimension of the tightening bolt (418) is larger than the width dimension of the connecting groove (422). A threaded cylinder (43) is fixedly provided at one end of the bottom surface of the support plate (42). A screw (44) is threadedly connected to the inner side of the lower end of the threaded cylinder (43). A fixing sleeve (45) is movably engaged at the bottom of the screw (44).
2. The musculoskeletal ultrasound fixation device according to claim 1, characterized in that: The fixing sleeve (45) includes a rigid arc plate (453). A connecting block (451) is fixedly provided in the middle of the top surface of the rigid arc plate (453). An inverted T-shaped slot (452) is opened in the middle of the connecting block (451). An inverted T-shaped rotating plate (441) is fixedly provided at the bottom of the screw (44). The inverted T-shaped rotating plate (441) is movably engaged with the inside of the inverted T-shaped slot (452). A connecting soft band (454) is fixedly connected to one end of the rigid arc plate (453). A limiting ring (457) is fixedly provided at the other end of the rigid arc plate (453). One end of the connecting soft band (454) passes through the limiting ring (457).
3. The musculoskeletal ultrasound fixation device according to claim 2, characterized in that: One end of the sidewall of the connecting soft band (454) is fixedly provided with a first Velcro (455), and the other end of the sidewall of the connecting soft band (454) is fixedly provided with a second Velcro (456).
4. The musculoskeletal ultrasound fixation device according to claim 3, characterized in that: A storage groove (31) is provided in the middle of one side wall of the backing plate (3), and a moving groove (32) is provided in the middle of one side wall of the storage groove (31). Limiting grooves (33) are symmetrically provided on the inner walls of both sides of the moving groove (32). The insert plate (41) is inserted into the inner side of the storage groove (31). A spring groove (411) is provided on the lower side wall of the insert plate (41). A connecting spring (412) is fixedly provided on the inner side of the spring groove (411). A locking plate (413) is fixedly provided on one end of the connecting spring (412). The two ends of the locking plate (413) are engaged with the inner side of the limiting groove (33). An operating port (414) is provided on the locking plate (413).
5. The musculoskeletal ultrasound fixation device according to claim 4, characterized in that: The lower end of the back plate (3) is symmetrically provided with second polygonal cylinders (35) on both sides. The outer wall of the second polygonal cylinder (35) is cylindrical, and the inner side of the second polygonal cylinder (35) is a polygonal hole.
6. The musculoskeletal ultrasound fixation device according to claim 5, characterized in that: One end of the seat plate (1) is provided with a rotating groove (11), and the lower end of the backrest plate (3) is engaged with the inner side of the rotating groove (11). The inner walls on both sides of the rotating groove (11) are provided with connecting holes (12). One end of the inner wall of the connecting hole (12) is fixedly provided with a first polygonal cylinder (13), and a second polygonal cylinder (35) is inserted into the inner side of the connecting hole (12). The second polygonal cylinder (35) is aligned with the first polygonal cylinder (13).
7. The musculoskeletal ultrasound fixation device according to claim 6, characterized in that: A polygonal insert rod (14) is inserted into the inner side of the first polygonal cylinder (13). The size of the polygonal insert rod (14) is adapted to the inner size of the first polygonal cylinder (13). The size of the polygonal insert rod (14) is adapted to the inner size of the second polygonal cylinder (35). An operating plate (15) is fixedly provided at one end of the polygonal insert rod (14).
8. The musculoskeletal ultrasound fixation device according to claim 7, characterized in that: A soft pad (34) is fixedly provided on the other side wall of the backrest (3).