Auxiliary device for passive outward rotation of shoulder joint

Abstract

The utility model discloses a shoulder joint passive outward rotation auxiliary device, which belongs to the field of rehabilitation medical equipment, and is characterized by comprising a driving rod, the end part of the driving rod is rotatably connected with a rotating piece, the rotating piece is provided with a fixing piece, and the fixing piece is used for being fixed with an affected hand of a patient; the shoulder joint exercise device has the advantages that a patient can grasp exercise strength by himself / herself, active force of the shoulder joint on the affected side is reduced, damage to soft tissue around the shoulder joint is avoided, operation is easy, the structure is simple, and cost is low.

Description

Technical Field

[0001] The utility model relates to the field of rehabilitation medical equipment, and more specifically to a shoulder joint passive external rotation auxiliary device. Background Art

[0002] The existing devices for assisting shoulder joint range of motion training can increase the range of motion of shoulder flexion and abduction, but lack the function of improving shoulder joint external rotation. Common clinical diseases that cause limited shoulder joint external rotation range of motion involve multiple clinical departments such as orthopedics, rehabilitation medicine, and general surgery, such as: limited shoulder joint external rotation range of motion after rotator cuff repair, internal fixation of upper limb fractures, rotator cuff injury, frozen shoulder, and total mastectomy.

[0003] In the early period after rotator cuff repair and various shoulder-related surgeries, shoulder external rotation range of motion training is mainly based on passive external rotation training on the side of the body. Existing solutions mostly require rehabilitation therapists to perform passive external rotation activities on a one-to-one basis during treatment, and use shoulder continuous passive motion trainers in the rehabilitation department to perform range of motion training. The treatment time is short and the cost is high. Passive shoulder external rotation range of motion training is completed with the assistance of family members at home, and the intensity control is poor. Patients are prone to exert force on their own and cause secondary injuries, resulting in poor completion and quality of treatment. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a passive external rotation assist device for the shoulder joint, which has the advantages that the patient can control the intensity of the activity by himself, reduce the active force of the affected shoulder joint, avoid damage to the soft tissue around the shoulder joint, and is easy to operate, simple in structure and low in cost.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A shoulder joint passive external rotation auxiliary device comprises a driving rod, the end of which is rotatably connected to a rotating member, a fixing member is arranged on the rotating member, and the fixing member is used to be fixed to the affected hand of a patient.

[0007] The utility model is further configured as follows: the rotating member includes a rotating block, a mounting groove is provided on the rotating block, a bolt is provided on the rotating block, the bolt passes through the mounting groove from one end of the rotating block and passes through the other end of the rotating block, the part of the bolt passing through the rotating block is threadedly connected with a nut, and a connecting block is provided at the end of the driving rod, the connecting block passes through the mounting groove and is sleeved on the bolt, and is rotatably connected with the bolt.

[0008] The utility model is further configured as follows: the bolt is a semi-threaded bolt, and the bolt comprises a smooth portion and a threaded portion.

[0009] The utility model is further configured as follows: the upper and lower sides of the connecting block are fitted with the inner wall of the installation groove.

[0010] The utility model is further configured as follows: the fixing piece comprises a nylon belt, and Velcro is arranged at both ends of the nylon belt.

[0011] The utility model is further configured as follows: the nylon belt is fixed to a side of the rotating member away from the driving rod by means of screws.

[0012] The utility model is further configured as follows: a rubber sleeve is sleeved on one end of the driving rod away from the rotating member for facilitating the patient's grip.

[0013] The utility model is further configured as follows: the rubber sleeve is provided with anti-skid patterns.

[0014] Compared with the prior art, the utility model has at least the following advantages:

[0015] 1. The patient fixes the fixing device to the affected hand, holds the end of the driving rod with the healthy hand, and drives the affected shoulder joint to produce passive external rotation through the internal rotation of the healthy hand. The patient can control the intensity of the activity by himself. The patient's affected shoulder joint actively exerts less force, which can avoid damaging the soft tissue around the shoulder joint. The operation is simple, the structure is simple and the cost is low.

[0016] 2. The fixing part is a nylon belt with Velcro, which is easy to fix and remove and comfortable to wear; a rubber sleeve is provided on the driving rod to facilitate the patient's grip and prevent slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of this embodiment;

[0018] Figure 2 is an exploded schematic diagram of this embodiment;

[0019] Figure 3 is a schematic diagram of the embodiment being fixed on a patient;

[0020] Figure 4 It is a schematic diagram of the present embodiment driving the shoulder joint to rotate externally.

[0021] Description of reference numerals:

[0022] 1. driving rod; 201. rotating block; 202. bolt; 2021. smooth part; 2022. threaded part; 203. nut; 3. mounting groove; 4. connecting block; 5. nylon belt; 6. rubber sleeve; 7. healthy hand; 8. affected hand. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] A passive external rotation assist device for the shoulder joint, such as Figure 1 and Figure 2 As shown, it includes a driving rod 1, the end of which is rotatably connected to a rotating member, and a fixing member is provided on the rotating member. The fixing member is used to be fixed to the patient's affected hand 8. The patient's healthy hand 7 holds the end of the driving rod 1, and performs an internal rotation movement through the healthy hand 7, thereby driving the affected shoulder joint to produce passive external rotation activity.

[0025] The rotating member includes a rotating block 201, a mounting groove 3 is opened in the middle of the rotating block 201, a bolt 202 is arranged on the rotating block 201, the bolt 202 passes through the mounting groove 3 from one end of the rotating block 201 and passes through the other end of the rotating block 201, the part of the bolt 202 passing through the rotating block 201 is threadedly connected with a nut 203, and the head of the bolt 202 abuts against the other side of the rotating block 201, thereby clamping and fixing the bolt 202 together with the nut 203.

[0026] A connecting block 4 is provided at the end of the driving rod 1. The connecting block 4 is inserted into the mounting groove 3. A through hole is opened on the connecting block 4. The connecting block 4 is sleeved on the bolt 202 through the through hole and is rotatably connected with the bolt 202. During installation, the connecting block 4 is first inserted into the mounting groove 3, the through hole on the connecting block 4 is aligned with the through hole of the rotating block 201, the bolt 202 is passed through the through hole in turn, and then the nut 203 is tightened on the part through which the bolt 202 passes, and the installation is completed.

[0027] The connecting block 4 and the mounting groove 3 are both circular, which facilitates the connecting block 4 to rotate in the mounting groove 3, and the upper and lower sides of the connecting block 4 are respectively fitted with the upper and lower inner walls of the mounting groove 3, so that the driving rod 1 will not shake up and down.

[0028] The bolt 202 of this embodiment is a semi-threaded bolt 202. The bolt 202 includes a smooth portion 2021 and a threaded portion 2022. The threaded portion 2022 is provided with an external thread for threaded connection with the nut 203. The threaded portion 2022 passes through the rotating block 201. The portion of the bolt 202 located in the mounting groove 3 is all the smooth portion 2021. The inner wall of the through hole of the connecting block 4 fits with the side wall of the bolt 202, so that the driving rod 1 will not shake in the horizontal direction.

[0029] The fixing part of this embodiment includes a nylon belt 5, which is fixed to the side of the rotating block 201 away from the driving rod 1 by screw locking. Velcro is provided at both ends of the nylon belt 5. The nylon belt 5 is wrapped around the patient's arm and the Velcro at both ends are bonded to achieve fixation. The fixing and disassembly are very convenient, and the tightness can be adjusted according to the bonding position of the Velcro parent and child surfaces, which can be adapted to arms of different thicknesses.

[0030] The end of the driving rod 1 away from the rotating part is provided with a rubber sleeve 6 for the patient to hold conveniently, so that the patient can hold the driving rod 1 more comfortably and not easily slip out of the hand. The rubber sleeve 6 is also provided with anti-slip textures to further increase the friction between the rubber sleeve 6 and the hand, making the grip more secure.

[0031] The use process of the utility model is as follows:

[0032] like Figure 3 As shown, when using, the patient lies on his back, first puts the affected hand 8 against the side of the body, then bends the affected elbow 90°, raises the forearm to a vertical position, fixes the nylon belt 5 on the wrist, and holds one end of the driving rod 1 with the healthy hand 7, while performing an internal rotation action (such as Figure 4 As shown), the rotating block 201 drives the affected shoulder joint to produce passive external rotation activity.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A shoulder joint passive external rotation assist device, characterized in that: It comprises a driving rod, the end of which is rotatably connected to a rotating member, the rotating member is provided with a fixing member, and the fixing member is used to be fixed to the affected hand of the patient; The rotating member includes a rotating block, a mounting groove is formed on the rotating block, a bolt is provided on the rotating block, the bolt passes through the mounting groove from one end of the rotating block and passes through the other end of the rotating block, the part of the bolt passing through the rotating block is threadedly connected with a nut, and a connecting block is provided at the end of the driving rod, the connecting block passes through the mounting groove and is sleeved on the bolt, and is rotatably connected with the bolt.

2. A shoulder joint passive external rotation assisting device according to claim 1, characterized in that: The bolt is a semi-threaded bolt, and the bolt comprises a smooth portion and a threaded portion.

3. A shoulder joint passive external rotation assisting device according to claim 1, characterized in that: The upper and lower sides of the connecting block are fitted with the inner wall of the installation groove.

4. A shoulder joint passive external rotation assisting device according to claim 1, characterized in that: The fixing piece comprises a nylon belt, and Velcro is arranged at both ends of the nylon belt.

5. A shoulder joint passive external rotation assisting device according to claim 4, characterized in that: The nylon belt is fixed to the side of the rotating member away from the driving rod through screws.

6. A shoulder joint passive external rotation assisting device according to claim 1, characterized in that: One end of the driving rod away from the rotating member is sleeved with a rubber sleeve for facilitating the patient's grip.

7. A shoulder joint passive external rotation assisting device according to claim 6, characterized in that: The rubber sleeve is provided with anti-skid patterns.

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