Medical elbow joint positioning device

Abstract

The utility model relates to a medical elbow joint positioning device which comprises a first sheath, a second sheath and a positioning structure. The positioning structure comprises a first connecting piece and a second connecting piece, and one end of the first connecting piece is connected with the first sheath; one end of the second connecting piece is connected with the second sheath, the other end of the second connecting piece is rotatably connected with the end part of the first connecting piece, and the first connecting piece is provided with a limiting assembly for limiting mutual rotation of the first connecting piece and the second connecting piece. When the device is used for angle positioning of the elbow joint of a patient, a medical worker only needs to install and constrain the first protective sleeve and the second protective sleeve on the upper arm and the front arm of the patient, then the elbow joint is adjusted to the needed angle, and finally rotation between the first connecting piece and the second connecting piece is limited by adjusting the limiting assembly; therefore, the elbow joint angle of the patient is positioned and limited, after the elbow joint placing angle of the patient is adjusted, the elbow joint of the patient can be positioned, and the elbow joint positioning device has the advantage of being high in positioning stability.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a medical elbow joint positioning device. Background Art

[0002] The radial collateral ligament of the elbow is relatively common in clinical work, but the conventional MRI examination of the elbow in the extended or 90° flexed position has poor display effect on the radial collateral ligament of the elbow, and often cannot display the entire ligament. However, MRI examination of the elbow at a flexion angle of 155°-165° can significantly improve the sensitivity of the radial collateral ligament of the elbow. Due to individual differences, the best display effect of the radial collateral ligament of the elbow is between 155°-165° flexion. When using the elbow flexion position for examination, the shoulder joint needs to be abducted 180° and the elbow joint slightly flexed. Patients often cannot cooperate due to pain and other reasons, and cannot put themselves in an ideal position; or they may have involuntary shaking due to being in the same position for a long time, pain, etc. Therefore, it is urgent to design an angle-adjustable elbow joint positioning device to assist in positioning patients. Summary of the invention

[0003] In view of the above problems, the utility model provides a medical elbow joint positioning device, which can position the patient's elbow joint after adjusting the patient's elbow joint placement angle, and has the advantage of high positioning stability.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A medical elbow joint positioning device, comprising:

[0006] a first sheath, the first sheath being used to restrain the upper arm;

[0007] a second sheath for restraining a forearm; and

[0008] A positioning structure, the positioning structure includes a first connecting member and a second connecting member, one end of the first connecting member is connected to the first sleeve; one end of the second connecting member is connected to the second sleeve, and the other end is rotatably connected to the end of the first connecting member, and the first connecting member is provided with a limit assembly for limiting the mutual rotation of the first connecting member and the second connecting member.

[0009] In one embodiment, an adapter ring is protrudingly provided on the second connecting member, a connecting hole is opened on the first connecting member, and the adapter ring is inserted into the connecting hole to realize the rotational connection between the second connecting member and the first connecting member.

[0010] In one embodiment, the limiting assembly includes a limiting bolt and a pressure ring:

[0011] One end of the limiting bolt passes through the connecting hole and is threadedly connected to the adapter ring, and the other end is connected to the pressing ring, and the pressing ring is tightly pressed on the first connecting piece.

[0012] In one embodiment, the outer edge of the pressure ring is provided with anti-slip grooves.

[0013] In one embodiment, the end of the limiting bolt passes through the adapter ring and the second connecting member, and an anti-dropping piece is provided at the end, and the anti-dropping piece restricts the limiting bolt from detaching from the adapter ring from one side of the connecting hole.

[0014] In one embodiment, the adapter ring and the connecting hole are arranged in an interference fit.

[0015] In one embodiment, two positioning structures are provided and are arranged opposite to each other on two sides of the first sheath.

[0016] The utility model adopts the above technical solution, which has the following advantages:

[0017] 1. When using the device to position the angle of the patient's elbow joint, the medical staff only needs to install and bind the first sleeve and the second sleeve on the patient's upper arm and forearm, then adjust the elbow joint to the required angle, and finally limit the rotation between the first connecting member and the second connecting member by adjusting the limit assembly, so as to complete the rotation restriction between the first connecting member and the second connecting member, thereby realizing the positioning restriction of the patient's elbow joint angle. After adjusting the patient's elbow joint placement angle, the patient's elbow joint can be positioned, which has the advantage of high positioning stability;

[0018] 2. The interference fit setting between the adapter ring and the connecting hole creates a rotational damping effect between the two. When adjusting the patient's elbow joint angle, the joint is rotated to overcome the resistance caused by the rotational damping. When positioning the angle later, it is convenient to assist the patient in positioning, avoiding the deviation of the overall angle caused by the patient's accidental shaking during the rotation of the compression ring. The damping effect can play a role in preliminary positioning;

[0019] 3. In order to make the force of the whole adjustment structure uniform, two positioning structures are provided and arranged oppositely on both sides of the first sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the specific structure of a medical elbow joint positioning device in one embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the specific structure of the positioning structure in one embodiment of the utility model;

[0022] Figure 3for Figure 2 A partial enlarged view of the middle A;

[0023] The marks in the figure are as follows:

[0024] 1. First sheath; 2. Second sheath;

[0025] 3. Positioning structure; 31. First connecting member; 311. Connecting hole; 32. Second connecting member; 321. Adapter ring;

[0026] 33. Limiting assembly; 331. Limiting bolt; 332. Pressing ring; 333. Anti-slip pattern; 334. Anti-slip sheet. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the utility model is described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary persons in the field without creative work are within the scope of protection of the utility model.

[0028] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second", "third", "fourth" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0029] The radial collateral ligament of the elbow joint is relatively common in clinical work, but the conventional MRI examination of the elbow joint in the extended position or 90° flexion position has poor display effect on the radial collateral ligament of the elbow joint, and often cannot display the entire ligament. However, MRI examination of the elbow joint at a flexion angle of 155°-165° can significantly improve the sensitivity of the radial collateral ligament of the elbow joint. Due to individual differences, the best display effect of the radial collateral ligament of the elbow joint is between 155°-165° flexion. When using the elbow flexion position for examination, the shoulder joint needs to be abducted 180° and the elbow joint is slightly flexed. Patients often cannot cooperate due to pain and other reasons and cannot put themselves in an ideal position; or they have involuntary shaking due to being in the same position for a long time, pain and other reasons. Therefore, it is urgent to design an angle-adjustable elbow joint positioning device to assist in positioning the patient. In view of the above problems, the utility model provides a medical elbow joint positioning device, which can position the patient's elbow joint after adjusting the patient's elbow placement angle, and has the advantage of high positioning stability. The specific scheme is as follows.

[0030] Reference Figure 1 , Figure 2 as well as Figure 3 As shown, the utility model relates to a medical elbow joint positioning device, comprising a first sheath 1, a second sheath 2 and a positioning structure 3, wherein the first sheath 1 is used to restrain the upper arm, and the second sheath 2 is used to restrain the forearm. It should be noted that the first sheath 1 and the second sheath 2 are both equipped with restraint belts to restrain the upper arm and the forearm, and the restraint belts are commonly used existing parts and will not be described in detail here.

[0031] The positioning structure 3 includes a first connecting member 31 and a second connecting member 32. One end of the first connecting member 31 is connected to the first sleeve 1; one end of the second connecting member 32 is connected to the second sleeve 2, and the other end is rotatably connected to the end of the first connecting member 31. A limiting component 33 is provided on the first connecting member 31 to limit the mutual rotation of the first connecting member 31 and the second connecting member 32.

[0032] Illustratively, when using the present device to position the angle of a patient's elbow joint, medical staff only need to install and restrain the first sheath 1 and the second sheath 2 on the patient's upper arm and forearm, and then adjust the elbow joint to the desired angle. Finally, by adjusting the limit assembly 33, the rotation between the first connecting member 31 and the second connecting member 32 is restricted. The rotation restriction between the first connecting member 31 and the second connecting member 32 can be completed, thereby achieving positioning restriction on the patient's elbow joint angle. After adjusting the patient's elbow joint placement angle, the patient's elbow joint can be positioned, which has the advantage of high positioning stability.

[0033] In one embodiment, the rotational connection structure between the first connecting member 31 and the second connecting member 32 is further refined, wherein an adapter ring 321 is protrudingly provided on the second connecting member 32, a connecting hole 311 is opened on the first connecting member 31, and the adapter ring 321 is inserted into the connecting hole 311 to realize the rotational connection between the second connecting member 32 and the first connecting member 31.

[0034] In this embodiment, specifically, the limiting assembly 33 includes a limiting bolt 331 and a pressing ring 332. One end of the limiting bolt 331 passes through a connecting hole 311 and is threadedly connected to the adapter ring 321, and the other end is connected to the pressing ring 332. The pressing ring 332 is tightly pressed against the first connecting member 31.

[0035] For example, when the patient's elbow joint is adjusted to the desired angle, the rotation of the limit bolt 331 drives the pressure ring 332 to gradually press the first connecting member 31, so that the first connecting member 31 and the second connecting member 32 are pressed against each other, thereby achieving the positioning and limiting effect. When the device needs to be disassembled later, it is only necessary to rotate the pressure ring 332 in the opposite direction to loosen the first connecting member 31 and the second connecting member 32 from each other. At this time, the first sheath 1 and the second sheath 2 can rotate with each other, and the device can be removed from the patient by loosening the restraint belt.

[0036] In this embodiment, it is more preferable that an anti-slip pattern 333 is provided on the outer edge of the pressure ring 332 to facilitate the medical staff to adjust the pressure ring 332 .

[0037] In addition, in this embodiment, the end of the limiting bolt 331 passes through the adapter ring 321 and the second connecting member 32 , and an anti-dropping piece 334 is provided at the end to prevent the limiting bolt 331 from detaching from the adapter ring 321 from one side of the connecting hole 311 .

[0038] When loosening the pressure ring 332, the limiting bolt 331 needs to be rotated. If the movement stroke of the limiting bolt 331 is too large, the limiting bolt 331 will be separated from the adapter ring 321 from one side of the connecting hole 311. The setting of the anti-detachment sheet 334 can avoid this situation.

[0039] At the same time, in this embodiment, it is more preferred that the adapter ring 321 and the connecting hole 311 are arranged in an interference fit.

[0040] It should be noted that the interference fit setting between the adapter ring 321 and the connecting hole 311 creates a rotational damping effect between the two. When adjusting the patient's elbow joint angle, the joint is rotated to overcome the resistance caused by the rotational damping. When positioning the angle subsequently, it is convenient to assist in positioning the patient and avoid accidental shaking of the patient during the rotation of the pressure ring 332, which may cause deviation in the overall angle. The damping effect can play a role in preliminary positioning.

[0041] In this embodiment, in order to make the force of the entire adjustment structure uniform, two positioning structures 3 are provided, and are arranged opposite to each other on both sides of the first sheath 1.

[0042] Specific implementation process:

[0043] When using the device to position the angle of the patient's elbow joint, the medical staff only needs to install and bind the first sheath 1 and the second sheath 2 on the patient's upper arm and forearm, and then adjust the elbow joint to the required angle;

[0044] When adjusting the angle of the patient's elbow joint, the joint is rotated to overcome the resistance caused by the rotation damping. When the patient's elbow joint is adjusted to the desired angle, the pressure ring 332 is rotated, and the rotation of the limit bolt 331 drives the pressure ring 332 to gradually press the first connecting member 31, so that the first connecting member 31 and the second connecting member 32 are pressed against each other, thereby achieving the positioning and limiting effect. When the device needs to be disassembled later, it is only necessary to rotate the pressure ring 332 in the opposite direction to loosen the first connecting member 31 and the second connecting member 32 from each other. At this time, the first sheath 1 and the second sheath 2 can rotate with each other, and the device can be removed from the patient by loosening the restraint belt.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A medical elbow joint positioning device, characterized in that: include: a first sheath, the first sheath being used to restrain the upper arm; a second sheath, the second sheath being used to restrain the forearm; as well as A positioning structure, the positioning structure includes a first connecting member and a second connecting member, one end of the first connecting member is connected to the first sleeve; one end of the second connecting member is connected to the second sleeve, and the other end is rotatably connected to the end of the first connecting member, and the first connecting member is provided with a limit assembly for limiting the mutual rotation of the first connecting member and the second connecting member.

2. The medical elbow joint positioning device according to claim 1, characterized in that: An adapter ring is protrudingly provided on the second connecting member, a connecting hole is opened on the first connecting member, and the adapter ring is inserted into the connecting hole to realize the rotational connection between the second connecting member and the first connecting member.

3. The medical elbow joint positioning device according to claim 2, characterized in that: The limiting assembly includes a limiting bolt and a pressure ring: One end of the limiting bolt passes through the connecting hole and is threadedly connected to the adapter ring, and the other end is connected to the pressing ring, and the pressing ring is tightly pressed on the first connecting piece.

4. The medical elbow joint positioning device according to claim 3, characterized in that: The outer edge of the pressure ring is provided with anti-slip grooves.

5. The medical elbow joint positioning device according to claim 3, characterized in that: The end of the limiting bolt passes through the adapter ring and the second connecting member, and an anti-dropping piece is provided at the end, and the anti-dropping piece restricts the limiting bolt from being separated from the adapter ring from one side of the connecting hole.

6. The medical elbow joint positioning device according to claim 2, characterized in that: The adapter ring and the connecting hole are arranged in an interference fit.

7. The medical elbow joint positioning device according to any one of claims 1 to 6, characterized in that: The positioning structures are provided in two numbers and are arranged opposite to each other on two sides of the first sheath.

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