Elbow joint flexion function rehabilitation brace manufactured through 3D printing technology

Abstract

The utility model relates to the field of medical rehabilitation instruments, in particular to an elbow joint flexion function rehabilitation brace manufactured by utilizing a 3D printing technology, which comprises a brace I and a brace II, the brace I is hinged with the brace II, fixing structures are respectively arranged on the brace I and the brace II, an elastic supporting piece is arranged at the hinged part of the brace I and the brace II, and the elastic supporting piece is connected with the brace II. The two ends of the elastic supporting piece are fixedly connected to the side faces of the first supporting tool and the second supporting tool respectively. The problems that an existing device for assisting elbow joint bending cannot enable a patient to freely and actively move the elbow, and the rehabilitation effect of the elbow of the patient is poor are solved.

Description

Technical Field

[0001] The utility model relates to the field of medical rehabilitation equipment, and in particular to an elbow flexion function rehabilitation brace manufactured by using 3D printing technology. Background Art

[0002] After the elbow joint is traumatized, it is difficult for the patient to actively train due to inflammation, immobilization, pain, swelling and other reasons of the surrounding soft tissues, which results in limited flexion function of the elbow joint and affects the flexion and extension function of the elbow joint. In severe cases, it can lead to elbow stiffness and loss of independent living ability, bringing heavy physical and psychological burdens to the patient.

[0003] At present, most people use braces to carry out rehabilitation training for the elbow joint. A brace is an external support device that aims to reduce the dysfunction of the limbs, spine, and skeletal muscle system. It has the functions of stabilizing joints, protecting bone grafts or fractures to replace weight-bearing, temporary external fixation, correcting deformities or preventing deformities from worsening, replacing functions, assisting hand function exercises, and supplementing length.

[0004] In the prior art, for example, Chinese patent application number 201921263164.8 proposes a portable device for assisting elbow flexion. The device bends the patient's elbow to a predetermined angle, and secures a first bracket and a second bracket to predetermined positions via a securing device, allowing the patient's elbow to maintain the bent position, thereby achieving a training effect. However, the device can only passively bend the patient's elbow and then secure it. This prevents the patient from freely and actively moving the elbow, resulting in poor elbow rehabilitation. Utility Model Content

[0005] The utility model proposes an elbow flexion functional rehabilitation brace made by 3D printing technology, which solves the problem that existing devices that assist elbow flexion cannot allow patients to move their elbows freely and actively, resulting in poor rehabilitation effects on patients' elbows.

[0006] To achieve the above-mentioned purpose, the present invention proposes an elbow flexion function rehabilitation brace made by 3D printing technology, comprising a brace one and a brace two, wherein the brace one and the brace two are hinged, and a fixing structure is respectively provided on the brace one and the brace two, and an elastic support member is provided at the hinge of the brace one and the brace two, and the two ends of the elastic support member are respectively fixedly connected to the side surfaces of the brace one and the brace two.

[0007] Preferably, the left and right sides of the brace one are respectively fixedly connected with a connecting arm one, and the left and right sides of the brace two are respectively provided with a connecting arm two;

[0008] The connecting arm 1 and the connecting arm 2 on the left are hinged by a pin 1, and the connecting arm 1 and the connecting arm 2 on the right are hinged by a pin 2.

[0009] Preferably, the hinged end of the first connecting arm is located outside the hinged end of the second connecting arm.

[0010] Preferably, the inner end of the pin shaft 1 is fixedly connected to the outer side surface of the hinged end of the left connecting arm 2, and the outer end of the pin shaft 1 passes through the hinged end of the left connecting arm 1;

[0011] An arc-shaped anti-slip groove is provided on the outer side surface of the connecting arm 1 on the left side.

[0012] Preferably, it further includes an angle limiting mechanism, which is arranged at the hinge point between the connecting arm 1 and the connecting arm 2 on the left side.

[0013] Preferably, the angle limiting mechanism includes a push rod, a sliding seat and a sliding limiting assembly;

[0014] The sliding seat is fixedly connected to the outer side of a hinged end of the left connecting arm, and a semicircular groove is provided in the sliding seat;

[0015] An arc-shaped sliding hole is opened on the outer side wall of the sliding seat, the sliding hole is connected to the semicircular groove, and the sliding limit assembly slides in the sliding hole;

[0016] The push rod is an arc-shaped rod, and the size of the push rod matches the size of the semicircular groove in the slide seat;

[0017] One end of the push rod is fixedly connected to the outer end of the pin shaft 1 through a connecting block, and the other end of the push rod slides in the semicircular groove of the slide seat.

[0018] Preferably, the sliding limit assembly includes a limit rod, a knob and a slide plate;

[0019] The limiting rod slides in the sliding hole, and one end of the limiting rod extends into the semicircular groove of the sliding seat;

[0020] The slide plate is an arc-shaped plate, matched with the anti-slip groove, fixedly connected to one end of the limit rod located in the slide seat, and slides in the anti-slip groove;

[0021] The knob is threadedly connected to one end of the limiting rod located outside the sliding seat.

[0022] Preferably, the connecting arm 1 and the connecting arm 2 located on the right side are respectively provided with a fixing block 1 and a fixing block 2;

[0023] The outer end of the second pin is fixedly connected with a baffle.

[0024] Preferably, the elastic support member is located inside the baffle, and the elastic support member is a torsion spring;

[0025] The first connecting portion of the torsion spring is fixedly connected to the first fixing block, the second connecting portion of the torsion spring is fixedly connected to the second fixing block, and the torsion portion of the torsion spring is sleeved on the second pin shaft.

[0026] Preferably, the fixing structure is a strap, and the strap is fixedly connected to the outer sides of the brace 1 and the brace 2.

[0027] The utility model has the following beneficial effects:

[0028] 1. Braces 1 and 2 are hinged, and a torsion spring is set at the hinge of braces 1 and 2. When the patient moves the elbow joint, the torsion spring elastically deforms. Due to the supporting effect of the torsion spring, the patient needs to bend the elbow with force, which can better exercise the muscles of the patient's upper arm and forearm, so that the patient's arm can recover quickly and prevent elbow stiffness.

[0029] 2. An angle limiting mechanism is set so that the patient can adjust the bending angle of the brace according to needs. In this way, the rehabilitation brace can not only allow patients to conduct staged rehabilitation training and further improve the patient's rehabilitation efficiency, but also adapt to patients with different recovery levels and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the left side structure of an elbow flexion function rehabilitation brace manufactured using 3D printing technology according to the present invention;

[0031] Figure 2 This is a schematic diagram of the right side structure of an elbow flexion function rehabilitation brace manufactured using 3D printing technology according to the present invention;

[0032] Figure 3 for Figure 2 A magnified view of point A;

[0033] Figure 4 This is a schematic diagram of the connection between the push rod and the connecting arm 2 in the elbow flexion functional rehabilitation brace manufactured using 3D printing technology according to the present invention;

[0034] Figure 5 This is a schematic diagram of the connection between the slide and the connecting arm 1 in the elbow flexion functional rehabilitation brace manufactured using 3D printing technology according to the present invention;

[0035] Figure 6This is a structural schematic diagram of a sliding limit assembly and a connecting end of a connecting arm in an elbow flexion function rehabilitation brace manufactured using 3D printing technology as described in the present invention.

[0036] In the figure, 1 is support one; 11, connecting arm one; 12, fixing block one; 13, anti-slip groove; 2, support two; 21, connecting arm two; 22, fixing block two; 3, strap; 4, sponge pad; 5, angle limiting mechanism; 51, connecting block; 52, push rod; 53, slide seat; 531, sliding hole; 54, limiting rod; 55, knob; 56, slide plate; 6, torsion spring; 61, connecting part one; 62, connecting part two; 63, torsion part; 7, pin one; 8, pin two; 81, baffle. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0038] This utility model proposes an elbow flexion function rehabilitation brace made by 3D printing technology, such as Figure 1 and Figure 2 As shown, it includes a brace 1 and a brace 2 2, which are hinged, and a fixing structure is provided on each of the brace 1 and the brace 2 2. An elastic support member is provided at the hinge of the brace 1 and the brace 2 2, and both ends of the elastic support member are fixedly connected to the sides of the brace 1 and the brace 2 2.

[0039] Both brace 1 and brace 2 are made using 3D printing technology.

[0040] like Figure 1 and Figure 2 As shown, the left and right sides of the brace 1 are respectively fixedly connected with a connecting arm 11, and the left and right sides of the brace 2 are respectively provided with a connecting arm 21;

[0041] The connecting arm 1 11 and the connecting arm 2 21 on the left are hinged by a pin 1 7 , and the connecting arm 1 11 and the connecting arm 2 21 on the right are hinged by a pin 2 8 .

[0042] like Figure 1 and Figure 2 As shown, the hinged end of the connecting arm 11 is located outside the hinged end of the connecting arm 21.

[0043] like Figure 1 , Figure 4 and Figure 5 As shown, further, the inner end of the pin shaft 1 7 is fixedly connected to the outer side surface of the hinge end of the left connecting arm 2 21, and the outer end of the pin shaft 1 7 passes through the hinge end of the left connecting arm 1 11;

[0044] like Figure 5 and Figure 6 As shown, an arc-shaped anti-slip groove 13 is provided on the outer side surface of the left connecting arm 11.

[0045] like Figure 1 As shown, it also includes an angle limiting mechanism 5, which is arranged at the hinge point of the left connecting arm 11 and the connecting arm 2 21;

[0046] like Figure 4 、 Figure 5 and Figure 6 As shown, the angle limiting mechanism 5 includes a push rod 52, a slide seat 53 and a sliding limiting assembly;

[0047] like Figure 5 As shown, the slide 53 is fixedly connected to the outer side of the hinged end of the left connecting arm 11, and a semicircular groove is provided in the slide 53;

[0048] like Figure 5 As shown, an arc-shaped sliding hole 531 is opened on the outer wall of the sliding seat 53, and the sliding hole 531 is connected to the semicircular groove. The sliding limit assembly slides in the sliding hole 531;

[0049] like Figure 4 As shown, the push rod 52 is an arc-shaped rod, and the size of the push rod 52 matches the size of the semicircular groove in the slide seat 53;

[0050] One end of the push rod 52 is fixedly connected to the outer end of the pin 7 through the connecting block 51, and the other end of the push rod 52 slides in the semicircular groove of the slide seat 53;

[0051] like Figure 5 and Figure 6 As shown, the sliding limit assembly includes a limit rod 54, a knob 55 and a slide 56;

[0052] The limiting rod 54 slides in the sliding hole 531, and one end of the limiting rod 54 extends into the semicircular groove of the sliding seat 53;

[0053] The slide plate 56 is an arc-shaped plate, and the slide plate 56 matches the anti-slip groove 13. The slide plate 56 is fixedly connected to one end of the limit rod 54 located in the slide seat 53, and the slide plate 56 slides in the anti-slip groove 13;

[0054] The knob 55 is threadedly connected to one end of the limiting rod 54 located outside the sliding seat 53.

[0055] The patient can adjust the bending angle of the brace as needed by loosening the knob 55 and then sliding the limit rod 54 counterclockwise or clockwise. After the position of the limit rod 54 is adjusted, tighten the knob 55 to fix the limit rod 54. When the patient bends his arm, the patient's forearm drives the brace 2 2 to rotate, the brace 2 drives the connecting arm 21 to rotate, and the connecting arm 21 drives the top rod 52 to rotate. After the free end of the top rod 52 contacts the limit rod 54, the limit rod 54 can clamp the top rod 52. In this way, the bending angle of the patient's arm can be adjusted by adjusting the arc distance of the free end of the top rod 52 sliding in the slide 53, which is convenient and practical.

[0056] The arc-shaped slide plate 56 can prevent the limiting rod 54 from rotating along with the knob 55 when the knob 55 is turned, thereby avoiding the problem that the position of the limiting rod 54 cannot be fixed.

[0057] like Figure 2 and Figure 3 As shown, the connecting arm 1 11 and the connecting arm 2 21 located on the right side are respectively provided with a fixing block 12 and a fixing block 2 22 .

[0058] like Figure 3 As shown, further, the outer end of the second pin 8 is fixedly connected to a baffle 81.

[0059] like Figure 2 and Figure 3 As shown, the elastic support member is located inside the baffle 81, and the elastic support member is a torsion spring 66;

[0060] The connecting portion 1 61 of the torsion spring 6 is fixedly connected to the fixing block 12 , the connecting portion 2 62 of the torsion spring 6 is fixedly connected to the fixing block 2 22 , and the torsion portion 63 of the torsion spring 6 is sleeved on the pin shaft 2 8 .

[0061] like Figure 1 and Figure 2 As shown, the fixing structure is a strap 3, which is fixedly connected to the outer surfaces of the brace 1 and the brace 2 2.

[0062] like Figure 1 and Figure 2 As shown, a sponge pad 4 is provided in each of the brace 1 and the brace 2 2 .

[0063] With the present invention, the patient's forearm is placed on the sponge pad 4 in the brace 2, the patient's upper arm is placed on the sponge pad 4 of the brace 1, and the patient's upper arm and forearm are fixed by the strap 3. The patient can move the elbow joint to perform rehabilitation training of the elbow. When the patient moves the elbow joint, the torsion spring 6 undergoes elastic deformation. Due to the supporting effect of the torsion spring 6, the patient needs to use force to bend the elbow, which can better exercise the muscles of the patient's upper arm and forearm, so that the patient's arm can recover quickly, and at the same time, it can also prevent elbow joint stiffness.

[0064] The patient can adjust the bending angle of the brace as needed. In the early stage of rehabilitation, the patient can loosen the knob 55 and then slide the limit rod 54 counterclockwise. After the position of the limit rod 54 is adjusted, the knob 55 is tightened to fix the limit rod 54. When the patient bends his arm, the patient's forearm drives the brace 2 to rotate, the brace 2 drives the connecting arm 21 to rotate, and the connecting arm 21 drives the top rod 52 to rotate. After the free end of the top rod 52 contacts the limit rod 54, the limit rod 54 can jam the top rod 52 to prevent If the patient's arm is excessively bent, causing secondary injury to the elbow, the patient can loosen the knob 55 again after adapting to the current bending angle, and then slide the limit rod 54 clockwise. After the position of the limit rod 54 is adjusted, the knob 55 is tightened again. When the patient bends the arm, the free end of the top rod 52 slides a certain arc distance in the semicircular groove of the slide 53 before contacting the limit rod 54. In this way, the patient can increase the bending angle of the arm, and then continue to exercise the elbow step by step according to the above method. In this way, the rehabilitation brace can not only allow patients to carry out staged rehabilitation training, further improving the patient's rehabilitation efficiency, but also adapt to patients with different recovery levels, and has strong applicability.

[0065] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An elbow flexion functional rehabilitation brace made using 3D printing technology, characterized in that: The invention comprises a brace one (1) and a brace two (2), wherein the brace one (1) and the brace two (2) are hinged, and the brace one (1) and the brace two (2) are respectively provided with a fixing structure, and an elastic support member is provided at the hinge of the brace one (1) and the brace two (2), and the two ends of the elastic support member are respectively fixedly connected to the side surfaces of the brace one (1) and the brace two (2).

2. The elbow flexion functional rehabilitation brace made by 3D printing technology according to claim 1, characterized in that: The left and right sides of the brace one (1) are respectively fixedly connected with a connecting arm one (11), and the left and right sides of the brace two (2) are respectively provided with a connecting arm two (21); The connecting arm 1 (11) and the connecting arm 2 (21) on the left are hinged via a pin 1 (7), and the connecting arm 1 (11) and the connecting arm 2 (21) on the right are hinged via a pin 2 (8).

3. The elbow flexion function rehabilitation brace made by 3D printing technology according to claim 2, characterized in that: The hinged end of the first connecting arm (11) is located outside the hinged end of the second connecting arm (21).

4. The elbow flexion functional rehabilitation brace made by 3D printing technology according to claim 3, characterized in that: The inner end of the pin shaft 1 (7) is fixedly connected to the outer side surface of the hinged end of the left connecting arm 2 (21), and the outer end of the pin shaft 1 (7) passes through the hinged end of the left connecting arm 1 (11); An arc-shaped anti-slip groove (13) is provided on the outer side surface of the left connecting arm 1 (11).

5. The elbow flexion function rehabilitation brace made by 3D printing technology according to claim 4, characterized in that: It also comprises an angle limiting mechanism (5), wherein the angle limiting mechanism (5) is arranged at the hinge point between the left connecting arm 1 (11) and the left connecting arm 2 (21).

6. The elbow flexion function rehabilitation brace made by 3D printing technology according to claim 5, characterized in that: The angle limiting mechanism (5) comprises a push rod (52), a sliding seat (53) and a sliding limiting assembly; The slide seat (53) is fixedly connected to the outer side of the hinged end of the left connecting arm (11), and a semicircular groove is provided in the slide seat (53); An arc-shaped sliding hole (531) is provided on the outer side wall of the sliding seat (53), the sliding hole (531) is connected to the semicircular groove, and the sliding limit assembly slides in the sliding hole (531); The push rod (52) is an arc-shaped rod, and the size of the push rod (52) matches the size of the semicircular groove in the slide seat (53); One end of the push rod (52) is fixedly connected to the outer end of the pin shaft (7) through a connecting block (51), and the other end of the push rod (52) slides in the semicircular groove of the slide seat (53).

7. The elbow flexion function rehabilitation brace made by 3D printing technology according to claim 6, characterized in that: The sliding limiter assembly comprises a limiter rod (54), a knob (55) and a slide plate (56); The limiting rod (54) slides in the sliding hole (531), and one end of the limiting rod (54) extends into the semicircular groove of the sliding seat (53); The slide plate (56) is an arc-shaped plate, the slide plate (56) matches the anti-slip groove (13), the slide plate (56) is fixedly connected to one end of the limit rod (54) located in the slide seat (53), and the slide plate (56) slides in the anti-slip groove (13); The knob (55) is threadedly connected to one end of the limiting rod (54) located outside the sliding seat (53).

8. The elbow flexion function rehabilitation brace made by 3D printing technology according to claim 2, characterized in that: The connecting arm 1 (11) and the connecting arm 2 (21) located on the right side are respectively provided with a fixing block 1 (12) and a fixing block 2 (22); The outer end of the second pin shaft (8) is fixedly connected with a baffle (81).

9. The elbow flexion function rehabilitation brace made by 3D printing technology according to claim 8, characterized in that: The elastic support member is located inside the baffle (81), and the elastic support member is a torsion spring (6); The connecting portion 1 (61) of the torsion spring (6) is fixedly connected to the fixing block 1 (12), the connecting portion 2 (62) of the torsion spring (6) is fixedly connected to the fixing block 2 (22), and the torsion portion (63) of the torsion spring (6) is sleeved on the pin shaft 2 (8).

10. The elbow flexion function rehabilitation brace made by 3D printing technology according to claim 1, characterized in that: The fixing structure is a binding belt (3), and the binding belt (3) is fixedly connected to the outer sides of the brace one (1) and the brace two (2).

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