Wrist joint examination positioner
By designing a wrist joint examination locator, the problems of patient posture discomfort and misdiagnosis during wrist joint MRI examinations have been solved, improving comfort and examination quality, and adapting to different patient groups.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYANG PEOPLES HOSPITAL
- Filing Date
- 2025-01-15
- Publication Date
- 2026-05-08
AI Technical Summary
In current wrist MRI examinations, the palm-down wrist position does not conform to anatomical standards, causing patient discomfort, making it difficult to remain still for a long time, and easily leading to motion artifacts and the risk of misdiagnosis.
A wrist joint examination locator was designed, including a support part and an elevation part. The support part and the elevation part are integrated into one structure. The elevation part is higher than the support part. It is equipped with an open fixing frame and an elastic band. The fixing frame is equipped with a support component. It is fixed by bolts and limit pins to adapt to different patient postures.
It improves patient comfort, reduces motion artifacts, enhances examination quality, adapts to different patient groups, and shortens examination time.
Smart Images

Figure CN224206825U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of examination equipment technology, specifically a wrist joint examination locator. Background Technology
[0002] Based on observations and summaries of wrist MRI images, the currently used wrist-down position with the palm facing down has three drawbacks: ① It does not conform to anatomical standards, i.e., the medical community generally accepts the observation habit of palm-up; ② The patient's position is uncomfortable in the wrist-down position, which is not conducive to maintaining stillness for a long time, and may lead to motion artifacts affecting the observation results; ③ Some patients have triangular fibrocartilage subluxation due to injury, and normal patients may also have triangular fibrocartilage displacement in the wrist-down position, thus leading to the risk of misdiagnosis. Utility Model Content
[0003] The purpose of this invention is to provide a wrist joint examination locator to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a wrist joint examination locator, comprising a support portion, wherein a lifting portion is provided on one side of the support portion; and the height of the lifting portion is greater than the height of the support portion; a fixing frame is also provided on the lifting portion, and the side of the fixing frame away from the lifting portion is an open structure.
[0005] As a preferred technical solution of this utility model, the open end of the fixing frame is also provided with an elastic band.
[0006] As a preferred technical solution of this utility model: both sides of the fixing frame are provided with through holes, and the elastic band passes through the through holes and is connected to the provided limiting pin.
[0007] As a preferred technical solution of this utility model, the elastic band is flat.
[0008] As a preferred technical solution of this utility model: the supporting part and the lifting part are an integral structure, and a supporting pad is also laid on the supporting part and the lifting part.
[0009] As a preferred technical solution of this utility model, it further includes bolts, which pass through the fixing frame and are connected to the lifting part to fix the fixing frame on the lifting part.
[0010] As a preferred technical solution of this utility model: the fixing frame is U-shaped, and the fixing frame is also provided with a support component for supporting the back of the patient's hand.
[0011] As a preferred technical solution of this utility model: the support member includes a support part and a connecting rod disposed on the support part; the connecting rod passes through the fixing frame and the lifting part and then engages with a knob threadedly.
[0012] As a preferred technical solution of this utility model: the fixing frame is also provided with a round hole to facilitate the insertion of the connecting rod; wherein, the round hole is provided with a limiting block, and the limiting block is slidably engaged with the sliding groove provided on the connecting rod.
[0013] The beneficial effects of this invention using the above technical solution are as follows: when the patient's palm is placed on the fixation frame and the patient's elbow is positioned on the support, the patient's hand presents a wrist-high, elbow-low arrangement. This open structure is well-suited for patients who are obese, thin, have swollen hands, or have external fixation devices in plaster casts. Simultaneously, the front-high, back-low design improves patient comfort during positioning, reduces motion artifacts, and shortens examination time while improving examination quality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a partially enlarged schematic diagram of the main structure of this utility model after disassembly;
[0016] Figure 3 This is a schematic diagram of the main structure of the support component of this utility model;
[0017] Figure 4 This is a schematic diagram of one fixing method of the elastic band and fixing frame of this utility model;
[0018] Figure 5 This is a schematic diagram of another fixing method for the elastic band and the fixing frame of this utility model.
[0019] In the diagram: 1. Support part; 2. Support pad; 3. Fixing frame; 4. Lifting part; 5. Supporting component; 6. Knob; 7. Bolt; 8. Limiting block; 9. Round hole; 10. Connecting rod; 11. Supporting part; 12. Slide groove; 13. Through hole; 14. Elastic band; 15. Limiting pin. Detailed Implementation
[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as limiting this utility model.
[0021] Please see Figure 1-5 One embodiment of this utility model is a wrist joint examination locator, including a support part 1, a lifting part 4 on one side of the support part 1, and the height of the lifting part 4 is greater than the height of the support part 1; the lifting part 4 is also provided with a fixing frame 3, and the side of the fixing frame 3 away from the lifting part 4 is an open structure.
[0022] In summary, because the fixation frame 3 has an open structure, it is easy for the patient's hand to be placed directly into it, thus solving the problem of poor adaptability of existing MRI equipment. Furthermore, when the patient's palm is placed on the fixation frame 3 and the elbow is positioned on the support 1, the patient's hand is positioned with the wrist higher than the elbow. This open structure provides good adaptability for patients who are obese, thin, have swollen hands, or have external fixation casts. At the same time, the front-high, back-low design improves patient comfort during positioning, reduces motion artifacts, and shortens examination time while improving examination quality.
[0023] The fixation frame 3 is also provided with an elastic band 14 at its open end, so the patient's arm can be fixed in the fixation frame 3 by means of the elastic band 14. At the same time, the elasticity of the elastic band 14 itself makes the fixation frame 3 adaptable to different patients.
[0024] To facilitate the quick assembly and disassembly of the elastic band 14, both sides of the fixing frame 3 are provided with through holes 13, and the elastic band 14 passes through the through holes 13 and is connected to the provided limiting pins 15. Therefore, when both ends of the elastic band 14 pass through the through holes 13, the limiting pins 15 are inserted into the elastic band 14 and locked onto the fixing frame 3 to fix both ends of the elastic band 14 onto the fixing frame 3. Conversely, the elastic band 14 can be removed by pulling out the limiting pins 15. At this time, the through holes 13 are strip-shaped holes.
[0025] In addition, such as Figure 5As shown, the limiting pin 15 can also be directly fixed to both ends of the elastic band 14. After the limiting pin 15 passes through the through hole 13, placing the limiting pin 15 horizontally outside the through hole 13 can also achieve the same result in fixing the elastic band 14. In this case, the through hole 13 is a round hole. The fixing method of the limiting pin 15 can be referenced from the method used to fix the rope loops at both ends of the tote bag to the tote bag.
[0026] Because the elastic band 14 is flat, it can increase the contact area with the user's hand, thereby reducing the discomfort caused by the elastic band 14 to the user's hand.
[0027] Furthermore, since the support part 1 and the lifting part 4 are an integral structure, and the support part 1 and the lifting part 4 are also covered with a support pad 2, the support pad 2 can be used to further improve the comfort of using the device. At the same time, the material of the support pad 2 is preferably silicone.
[0028] Furthermore, it also includes bolts 7, which pass through the fixing frame 3 and connect to the lifting part 4 to fix the fixing frame 3 to the lifting part 4.
[0029] In summary, the connection between the fixing frame 3 and the lifting part 4 is achieved by using bolts. Therefore, while connecting the fixing frame 3 and the lifting part 4, the support pad 2 can also be fixed on the lifting part 4. Conversely, disassembling the bolts 7 facilitates the replacement of the support pad 2.
[0030] Based on the above solution, since the fixing frame 3 is U-shaped, it is simple and convenient for the patient to place their hand inside. In addition, since the fixing frame 3 is also provided with a support member 5 for supporting the back of the patient's hand, the support member 5 can be used to further support the back of the patient's hand to prevent the patient's hand from moving.
[0031] Furthermore, since the support member 5 includes a support portion 11 and a connecting rod 10 disposed on the support portion 11; the connecting rod 10 passes through the fixing frame 3 and the lifting portion 4 and is threadedly engaged with the provided knob 6, the support portion 11 can be moved upward or downward by rotating the knob 6, thereby enabling the device to finely adjust the position of the support member 5 by rotating the knob 6, so as to further ensure that the patient's hand is more comfortable when resting on the support member 5.
[0032] Meanwhile, the fixing frame 3 is also provided with a circular hole 9 for easy insertion of the connecting rod 10; wherein, a limiting block 8 is provided on the circular hole 9, and the limiting block 8 slides in cooperation with the sliding groove 12 provided on the connecting rod 10. Therefore, the support member 5 can only perform directional movement, that is, move up or down, to avoid the phenomenon that the user's hand will be twisted due to rotation of the support member 5 during adjustment.
[0033] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A wrist joint examination locator, characterized in that: It includes a support part (1), and a lifting part (4) is provided on one side of the support part (1); and the height of the lifting part (4) is greater than the height of the support part (1); The lifting part (4) is also provided with a fixing frame (3), and the side of the fixing frame (3) away from the lifting part (4) is an open structure.
2. The wrist joint examination locator according to claim 1, characterized in that: The opening end of the fixing frame (3) is also provided with an elastic band (14).
3. The wrist joint examination locator according to claim 2, characterized in that: Both sides of the fixing frame (3) are provided with through holes (13), and the elastic band (14) passes through the through holes (13) and is connected to the provided limiting pin (15).
4. A wrist joint examination locator according to claim 3, characterized in that: The elastic band (14) is flat.
5. A wrist joint examination locator according to claim 4, characterized in that: The support part (1) and the lifting part (4) are an integral structure, and a support pad (2) is also laid on the support part (1) and the lifting part (4).
6. A wrist joint examination locator according to claim 5, characterized in that: It also includes bolts (7), which pass through the fixing frame (3) and are connected to the lifting part (4) to fix the fixing frame (3) on the lifting part (4).
7. A wrist joint examination locator according to any one of claims 1-6, characterized in that: The fixation frame (3) is U-shaped, and the fixation frame (3) is also provided with a support member (5) for supporting the back of the patient's hand.
8. A wrist joint examination locator according to claim 7, characterized in that: The support member (5) includes a support part (11) and a connecting rod (10) provided on the support part (11); the connecting rod (10) passes through the fixing frame (3) and the lifting part (4) and is threadedly engaged with a knob (6).
9. A wrist joint examination locator according to claim 8, characterized in that: The fixing frame (3) is also provided with a round hole (9) for easy insertion of the connecting rod (10); wherein, the round hole (9) is provided with a limiting block (8), and the limiting block (8) slides in cooperation with the sliding groove (12) provided on the connecting rod (10).