TWI706800B - Knee fixation device - Google Patents

Abstract

A knee fixation device is provided to overcome the problem where the conventional knee support cannot prevent the genu recurvatum of the patient. The knee fixation device includes a first support having an abutment portion at the bottom edge thereof, a first coupling member fixing the first support to the thigh of the patient, a second support having a bearing portion, a second coupling member fixing the second support to the lower leg of the patient, a buffering member located on the bearing portion of the second support, and two connecting members pivotally connected to the first support and the second support. The abutment portion of the first support abuts the buffering member.

Description

Knee joint assistive devices

The invention relates to a rehabilitation equipment, in particular to a knee joint assistive device suitable for correction of patients with knee reflexion.

In patients with central nerve injury, peripheral nerve injury, and lower limb muscle function defects, although most patients can recover their walking ability after the acute phase of the disease, they still have insufficient muscle strength, abnormal muscle tension, or abnormal movement patterns, resulting in uncoordinated gait (asymmetry Problems such as gait), balance dysfunction and slow walking speed. In order to achieve the functional mobility of walking, patients often use skeletal structure to lock or increase soft tissue tension (increase tension) by over-extension of the knee during standing period. Pull the knee joint in a way to maintain balance and safety in your standing posture. However, the knee joint and its surrounding tissues will be abnormally stressed due to this walking pattern, resulting in joint muscle contracture and deformation, soft tissue inflammation and pain and other complications, which will reduce the independence of daily life.

In order to improve poor standing, uncoordinated gait and avoid irreversible damage to the knee joint of patients, most patients will correct knee reflexion or excessive extension by wearing protective gear and rehabilitation methods. However, the market does not There is no protective gear suitable for knee reflexion, and most of the conventional leg protective gear is designed for temporary fixation, sprain, strain and other sports injuries after ligament rupture. Such patients have knee flexion and extension and angle It has active control ability and can fully bear the weight of the body, but if the patient with knee reflexion wears the conventional leg protector, not only the corrective effect cannot be achieved, but the patient’s knee may be injured again due to the excessive burden on the knee And other complications.

In view of this, the conventional knee brace does still have to be improved.

In order to solve the above-mentioned problems, the purpose of the present invention is to provide a knee joint assistive device that can be worn by users who have knee flexion correction.

The second purpose of the present invention is to provide a knee joint assistive device that can disperse the stress on the knee joint to reduce the burden on the knee joint.

Another object of the present invention is to provide a knee joint assistive device which can be attached to the affected limb to promote peripheral nerve sensation and feedback.

The directionality described in the full text of the present invention or its similar terms, such as "front", "rear", "left", "right", "up (top)", "down (bottom)", "inner", "outer" , "Side", etc., mainly refer to the directions of the attached drawings. The directional or similar terms are only used to help explain and understand the embodiments of the present invention, and are not used to limit the present invention.

The elements and components described in the full text of the present invention use the quantifiers "one" or "one" for convenience and to provide the general meaning of the scope of the present invention; the present invention should be interpreted as including one or at least one, and single The concept of also includes the plural, unless it clearly implies other meanings.

The approximate terms such as "combination", "combination" or "assembly" mentioned in the full text of the present invention mainly include the types that can be separated without destroying the components after being connected, or the components can not be separated after being connected, which are common knowledge in the field Those can be selected based on the materials of the components to be connected or assembly requirements.

The knee joint assistive device of the present invention includes: a first bracket, the bottom edge of the first bracket has an abutting top, a first connecting member fixes the first bracket to the patient's thigh; a second bracket, the The second stent has a bearing part, and a second connecting member fixes the second stent to the patient's Lower leg part; a buffer member located on the bearing portion of the second bracket, the top of the first bracket abuts against the buffer member, the buffer member has a bottom plane and an inclined surface opposite, the bottom plane can be separated Ground is coupled to the load-bearing part, the inclined surface has an inclined angle with respect to the bottom plane, so that the inclined surface is inclined from the inner side of the leg to the outer side of the leg to form an inner high and outer low inclined surface; and two connecting pieces, which are pivotable Groundly connect the first support and the second support.

Accordingly, the knee joint assistive device of the present invention can be separately manufactured according to the condition of the leg of the patient with knee reflexion, and the first bracket and the second bracket are made by the first coupling member and the second coupling member. The bracket is fixed on the affected limb to disperse the stress on the knee joint, and the buffer is located between the first bracket and the second bracket, which can increase the mobility of the affected limb, improve wearing comfort, and facilitate putting on and taking off , Increase the support of the knee joint and reduce the burden on the knee joint. The doctor can replace the buffer according to the patient's degree of recovery, which has the functions of being replaceable and matching the patient's degree of recovery.

Wherein, the first bracket has at least two first positioning holes, and the two first positioning holes are respectively located on two sides of the first bracket and opposite to the medial epicondyle and lateral epicondyle of the femur. In this way, the system can increase the sensation and feedback of peripheral nerves, and the system has the effect of promoting nerve conduction.

Wherein, the second bracket has four second positioning holes, and there are two second positioning holes for the medial and lateral condyles of the tibia. In this way, the knee joint assistive system has the effect of increasing the supporting force of the knee socket part.

Wherein, the first connecting piece and the second connecting piece each have a fixing piece and a connecting belt, the fixing piece is respectively fixed on the surface of the first bracket and the second bracket, and the two ends of each connecting belt form It can be detachably combined with each of the fixing parts, so that the connecting band and the fixing part are enclosed in a ring. In this way, the knee joint assistive system has the functions of being adjustable and improving the convenience of disassembly and assembly.

Wherein, the surfaces of the first bracket and the second bracket respectively have a plurality of ventilation holes. In this way, each of the ventilation holes can allow the patient's body temperature to escape, so as to prevent the patient's leg skin from being covered for a long time to cause allergies or itching, and it has the effect of increasing air permeability and avoiding hot and itchy limbs.

Wherein, there is a distance between the top portion and the bearing portion, and the distance is between 0.1 and 5 cm. In this way, the system has the effect of adjusting the movable angle of the affected limb and improving the wearing comfort.

Wherein, the connecting piece has a plurality of fixing holes, the fixing holes penetrate the connecting piece, and each fixing hole is used for the positioning element to connect the connecting piece with the first bracket and the second bracket. In this way, the system has the effect of improving the connection strength and increasing the mobility of the hinge joint.

The knee joint assistive device further includes an auxiliary connecting piece, the auxiliary connecting piece having a first auxiliary connecting piece and a second auxiliary connecting piece, the first auxiliary connecting piece is located on the first bracket, and the second auxiliary connecting piece Located in the second bracket. In this way, the system has the effect of increasing the support for the knee and improving the degree of knee joint coverage.

Wherein, the first auxiliary connecting piece and the second auxiliary connecting piece cross each other. In this way, the system has the effect of preventing slippage and displacement of the knee joint assistive device.

〔this invention〕

1: The first bracket

11: The first positioning hole

12: reach the top

13: The first combination

13a: fixed parts

13b: binding zone

14: Vent holes

2: second bracket

21: The second positioning hole

22: Bearing Department

23: The second combination

23a: Fixed parts

23b: binding zone

24: Vent holes

3: Buffer

31: bottom plane

32: Inclined surface

4: connecting piece

41: fixed hole

42: positioning element

5: auxiliary connector

51: The first auxiliary connector

51a: fixed parts

51b: binding band

52: The second auxiliary connector

52a: Fixed parts

52b: binding zone

G: Spacing

[Figure 1] An exploded perspective view of a preferred embodiment of the present invention.

[Figure 2] A combined side view of a preferred embodiment of the present invention.

[Figure 3] A front view of the assembly of a preferred embodiment of the present invention.

[Figure 4] A side view of a preferred embodiment of the present invention in use.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described below in detail with the accompanying drawings: please refer to Figures 1 and 2 As shown, it is a preferred embodiment of the knee joint assistive device of the present invention, which includes a first bracket 1, a second bracket 2, a buffer member 3 and two connecting members 4. The first The bracket 1 and the second bracket 2 are connected by the two connecting members 4, and the buffer member 3 is located between the first bracket 1 and the second bracket 2.

It should be noted in advance that the knee assistive device of the present invention is individually customized according to the condition of each patient’s leg, so the size, shape, length, width, angle and degree of coverage of the knee assistive device will vary depending on It varies from person to person, and specific components are replaced and adjusted according to the patient's correction progress.

The first bracket 1 is made according to the patient's thigh, and preferably covers 1/2 to 2/3 of the femur of the thigh, so as to disperse the stress and improve the supporting force of the first bracket 1 on the thigh. The first bracket The 1 series has at least two first positioning holes 11. In this embodiment, the number of the at least two first positioning holes 11 is two, and the two first positioning holes 11 are respectively on the two sides of the first stent 1, and are located on the medial epicondyle of the femur. And the outer epicondyle, an abutting top 12 is formed on the bottom edge of the first support 1, and the abutting top 12 can be abutted against the buffer member 3.

The first bracket 1 has a first coupling member 13, and the first coupling member 13 is used to fix the first support 1 to the patient's thigh; preferably, the first coupling member 13 may be a The adjustable strap is used to fix the first bracket 1 to the patient's thigh by the first coupling member 13 in a sleeved manner. In this embodiment, the first coupling member 13 has a fixing member 13a and a coupling band 13b. The fixing member 13a is fixed to the surface of the first bracket 1, and the two ends of the coupling band 13b are detachably It is combined with the fixing member 13a, so that the joint belt 13b and the fixing member 13a are jointly encircled into a ring shape. The joint belt 13b may be made of air-permeable material to fix the first bracket 1 by the joint belt 13b On the patient’s thigh, for example, but not limited to, the fixing member 13a and the connecting belt 13b can be combined and fixed with devil felt to increase the adjustability and improve the convenience of disassembly and assembly. In addition, in other embodiments The coupling method of the fixing member 13a and the coupling band 13b can be bonding, buckling, magnetic attraction, fitting, or snapping, etc. The present invention is not limited, and can be firmly connected as the principle. In addition, the surface of the first stent 1 may also have several ventilation holes 14, each of which can allow the patient's body temperature to escape, so as to prevent the patient's skin from being covered by the first stent 1 for a long time. Allergic or itchy.

The second bracket 2 is made according to the position of the lower leg of the patient, preferably covering 1/2~2/3 of the calf tibia to disperse the stress on the knee. The second bracket 2 has at least two second positions孔21. In this embodiment, the number of the at least two second positioning holes 21 is four, and the four second positioning holes 21 are respectively located on two sides of the tibia, that is, two of the second positioning holes 21 can be located on the patient's tibia. Around the medial condyle of the patient’s tibia, the other two second positioning holes 21 can be located near the lateral condyle of the patient’s tibia; the second bracket 2 may also have a bearing portion 22 located at the top edge of the second bracket 2 , And provide a flat surface for the buffer 3 to be placed.

The second bracket 2 has a second connecting member 23, and the second connecting member 23 is used to fix the second bracket 2 to the lower leg of the patient; preferably, the second connecting member 23 may be a The adjustable strap fixes the second bracket 2 to the patient's calf in a sleeved manner. In this embodiment, the second coupling member 23 has a fixing member 23a and a coupling band 23b. The fixing member 23a is fixed to the surface of the second bracket 2, and the two ends of the coupling band 23b are detachably It is combined with the fixing member 23a, so that the connecting belt 23b and the fixing member 23a are jointly enclosed in a ring shape. The connecting belt 23b may be made of air-permeable material to fix the second bracket 2 by the connecting belt 23b. On the patient’s calf, for example, but not limited, the fixing member 23a and the bonding belt 23b can be combined and fixed with the fixing member 13a and the bonding belt 13b in the manner of devil felt to increase adjustability and lift Convenience of disassembly and assembly. In addition, the surface of the second stent 2 may also have several vents 24, each of the vents 24 can allow the patient's body temperature to escape, so as to prevent the patient's skin from being covered by the second stent 2 for a long time and causing allergies or irritation. itch.

Please refer to Figures 1 and 3, the buffer member 3 can be placed on the carrying portion 22. When the first bracket 1 and the second bracket 2 are connected, the buffer member 3 can be located on the first bracket. The support 1 and the second support 2 are provided for the support portion 12 to support, and a gap G (as shown in Figure 2) is formed between the support portion 12 and the carrying portion 22. The gap G is preferably between Within 0.1~5 cm between. The buffer member 3 may also have a bottom plane 31 and an inclined surface 32 opposite to each other. The bottom plane 31 is detachably combined with the carrying portion 22 to facilitate the user to replace the buffer member 3; the gap G may be For example, it is formed by abutting the top 12 against the inclined surface 32. The inclined surface 32 has an inclination angle with respect to the bottom plane 31, so that the inclined surface 32 is inclined from the inner side of the leg to the outer side of the leg to form an inner height and outer height. A low slope, and the inclination angle of the inclination angle can be determined by the doctor according to the patient’s knee reflexion angle and the degree of correction. During the correction period, the doctor can replace the cushion 3 according to the patient’s degree of recovery. The cushion 3 with an appropriate inclination angle is selected to match the patient's rehabilitation status.

Please refer to Figures 1 and 2, the two connecting members 4 are used to connect the first bracket 1 and the second bracket 2 to distribute the force of the knee joint to the entire leg, so as to reduce the knee joint Burden and assist patients in correction and rehabilitation. In this embodiment, the connecting member 4 may be, for example, a rectangular thin plate and located on two sides of the first bracket 1 and the second bracket 2 respectively. The connecting member 4 has a plurality of fixing holes 41, and the fixing holes 41系through the connecting piece 4. The plurality of fixing holes 41 allow the doctor to adjust the distance between the first bracket 1 and the second bracket 2 according to the patient's leg condition, so that the fixing holes 41 are respectively positioned at the first positioning hole 11 and the second positioning hole 11 Two positioning holes 21, and positioning elements 42 such as screws, nuts and washers to position the connector 4 on the first bracket 1 and the second bracket 2 so that the first bracket 1 and the second bracket 2 It is connected in a relatively rotatable manner so that the knee joint can be freely bent and straightened during use.

Please refer to Figure 4, since the knee joint is a pivot joint in the movable joint, it needs frequent rotation to match the movement of the human body. However, the frequent movement of the knee joint may cause the protective gear to fall off. The knee joint auxiliary of the present invention The tool can also have an auxiliary connecting piece 5, the auxiliary connecting piece 5 has a first auxiliary connecting piece 51 and a second auxiliary connecting piece 52, the first auxiliary connecting piece 51 is located in the first bracket 1, the second The auxiliary connecting member 52 is located on the second bracket 2, and the first auxiliary connecting member 51 and the second auxiliary connecting member 52 respectively enable the first bracket 1 and the second bracket 2 to fit the affected limb more closely. In this embodiment, the first auxiliary connecting member 51 has a fixing member 51a and a coupling With 51b, the fixing member 51a is fixed to the surface of the first bracket 1, and the fixing member 51a is closer to the second bracket 2 than the first coupling member 13, that is, the fixing member 51a is located in the first coupling Between the member 13 and the top portion 12, the connecting belt 51b may be made of a breathable material. One end of the connecting belt 51b is detachably connected to the fixing member 51a. For example, but not limited to, the fixing member 51a The connecting belt 51b can be combined and fixed with the fixing member 13a and the connecting belt 13b in the manner of devil felt, so as to increase the adjustability and the convenience of disassembly and assembly.

The second auxiliary connecting member 52 has a fixing member 52a and a coupling band 52b. The fixing member 52a is fixed to the surface of the second bracket 2. The fixing member 52a is closer to the first connecting member 23 than the second connecting member 23. A bracket 1, that is, the fixing member 52a is located between the carrying portion 22 and the second coupling member 23, the coupling band 52b may be made of a breathable material, and one end of the coupling band 52b is detachably coupled At the fixing member 52a, the other end of the connecting belt 52b is connected to the fixing member 51a, and the other end of the connecting belt 51b is connected to the fixing member 52a, so that the first auxiliary connecting member 51 and the second auxiliary The connecting members 52 are arranged to cross each other, so that the first bracket 1 can be attached to the user's thigh to stimulate nerve conduction around the patella, and the second bracket 2 can be attached to the user's calf, and the body The weight is distributed to the tibia to reduce the stress on the knee joint. For example, but not limited, the fixing member 52a and the bonding belt 52b can be combined with the fixing member 13a and the bonding belt 13b in the manner of devil felt. , In order to increase the adjustability and enhance the convenience of disassembly and assembly. Preferably, the connecting belt 51b and the connecting belt 52b can be interlaced with each other, so that the first auxiliary connecting piece 51 and the second auxiliary connecting piece 52 are arranged in a crosswise manner to increase the coverage of the knee joint assistive device. It also provides stronger support for the patient’s knee.

According to the foregoing structure, when the knee joint assistive device of the present invention is worn and used, the first bracket 1 can be placed on the patient's thigh, and the second bracket 2 can be positioned on the patient's lower leg. A connecting piece 13 and a second connecting piece 23 fix the knee joint assistive device on the affected limb to reduce the burden on the knee joint. In addition, the auxiliary connecting member 5 can make the first bracket 1 and the second The stent 2 fits more closely to the affected limb to promote body surface and proprioception feedback, thereby increasing the patient's recovery speed.

In summary, the knee joint assistive device of the present invention can be separately manufactured according to the leg conditions of patients with knee reflexion, and the first bracket and the The second bracket is fixed on the affected limb to disperse the stress on the knee joint, and the buffer is located between the first bracket and the second bracket, which can increase the mobility of the affected limb, improve wearing comfort and convenience Put on and take off, increase the support of the knee joint and reduce the burden on the knee joint. In addition, the auxiliary connector can make the knee joint assistive device of the present invention fit more closely to the knee surface of the patient, and has the effects of dispersing stress and promoting body surface and proprioception feedback.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art without departing from the spirit and scope of the present invention may make various changes and modifications relative to the above-mentioned embodiments. The technical scope of the invention is protected. Therefore, the scope of protection of the invention shall be subject to the scope of the attached patent application.

1: The first bracket

11: The first positioning hole

12: reach the top

13: The first combination

13a: fixed parts

13b: binding zone

14: Vent holes

2: second bracket

21: The second positioning hole

22: Bearing Department

23: The second combination

23a: Fixed parts

23b: binding zone

24: Vent holes

3: Buffer

31: bottom plane

32: Inclined surface

4: connecting piece

41: fixed hole

42: positioning element

5: auxiliary connector

51: The first auxiliary connector

51a: fixed parts

51b: binding band

52: The second auxiliary connector

52a: Fixed parts

52b: binding zone

Claims (9)

A knee joint assistive device, comprising: a first stent, the bottom edge of the first stent has an abutting top, a first coupling member fixes the first stent to the thigh of a patient; a second stent, the second The stent has a supporting part, a second connecting part fixes the second stent to the patient's calf; a buffering part is located on the supporting part of the second stent, the top of the first stent abuts the buffering part, The buffer member has a bottom plane and an inclined surface opposite to each other. The bottom plane is detachably combined with the load-bearing part. The inclined surface has an inclination angle relative to the bottom plane, so that the inclined surface faces from the inner side of the leg to the leg The outer side of the part is inclined into an inclined surface with an inner height and an outer lower portion; and two connecting pieces are configured to pivotally connect the first bracket and the second bracket. The knee joint assistive device of claim 1, wherein the first bracket has at least two first positioning holes, and the two first positioning holes are respectively located on two sides of the first bracket and opposite to the medial epicondyle and outer upper part of the femur condyle. For example, the knee joint assistive device of claim 1, wherein the second bracket has four second positioning holes, and each has two second positioning holes for the medial and lateral condyles of the tibia. For example, the knee joint assistive device of claim 1, wherein the first coupling member and the second coupling member each have a fixing member and a coupling belt, and the fixing member is fixed to the first bracket and the second bracket respectively On the surface, the two ends of each of the bonding bands are detachably connected to each of the fixing parts, so that the bonding band and the fixing parts are enclosed in a ring. Such as the knee joint assistive device of claim 1, wherein the surfaces of the first bracket and the second bracket respectively have a plurality of ventilation holes. For example, the knee joint assistive device of claim 1, wherein there is a distance between the abutment portion and the bearing portion, and the distance is between 0.1 and 5 cm. For example, the knee joint assistive device of claim 1, wherein the connecting piece has a plurality of fixing holes, the fixing holes pass through the connecting piece, and each of the fixing holes is used for the positioning element to connect the connecting piece with the first bracket and the second bracket. The brackets are connected. For example, the knee joint assistive device of any one of claim items 1 to 7, further comprising an auxiliary connecting piece, the auxiliary connecting piece having a first auxiliary connecting piece and a second auxiliary connecting piece, the first auxiliary connecting piece Located on the first bracket, the second auxiliary connecting member is located on the second bracket. Such as the knee joint assistive device of claim 8, wherein the first auxiliary connecting piece and the second auxiliary connecting piece cross each other.

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