Telescopic brace for preventing toe web from moving upwards after toe merging operation

Abstract

The invention discloses a telescopic brace for preventing a toe web from moving upwards after a toe merging operation, and relates to the technical field of medical instruments, the telescopic brace comprises a bottom plate, a first sliding block, a second sliding block, a side fixing plate, a rectangular frame, a rear fixing plate, a driving assembly and a supporting assembly; the bottom plate is configured to be a rectangular plate, two first sliding grooves are formed in the upper end face of the bottom plate in the left-right direction, two second sliding grooves are formed in the upper end face of the bottom plate in the front-back direction, the two first sliding blocks are arranged in the two first sliding grooves in a sliding mode respectively, and the two second sliding blocks are arranged in the two second sliding grooves in a sliding mode respectively. The two side fixing plates are fixed to the ends, away from each other, of the two first sliding blocks respectively, the rectangular frame is fixed to the front end of the second sliding block located on the front side, the rear fixing plate is fixed to the rear end of the second sliding block located on the rear side, the driving assembly is arranged in the bottom plate, and the supporting assembly is arranged on the rectangular frame.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a retractable brace for preventing upward migration of the toe web after syndactyly surgery. Background Art

[0002] It also means that the web gap needs to be fixed for a long time after surgery to prevent adhesion and upward migration. However, traditional braces are mostly static fixation structures with the following defects: 1. They cannot adapt to changes in foot size during the postoperative swelling subsidence process; 2. They lack dynamic adjustment function and can easily lead to compression injuries.

[0003] Therefore, it is necessary to invent a retractable brace for preventing upward migration of the webbed toes after syndactyly surgery to solve the above problems. Summary of the Invention

[0004] In response to the above problems, the present invention provides a retractable brace for preventing upward migration of the webbed toes after syndactyly surgery, which solves the problem in the prior art that the size of the brace cannot be adaptively adjusted according to the reduction of postoperative swelling.

[0005] The technical solution adopted by the present invention is: it includes a base plate, a slider 1, a slider 2, a side fixing plate, a rectangular frame, a rear fixing plate, a driving assembly and a support assembly; the base plate is configured as a rectangular plate, and its upper end surface is provided with two slide grooves 1 along the left and right directions, and the upper end surface of the base plate is provided with two slide grooves 2 along the front and rear directions, the slider 1 is configured with two, which are respectively slidably set in the two slide grooves 1, the slider 2 is configured with two, which are respectively slidably set in the two slide grooves 2, the side fixing plates are configured with two, which are respectively fixed at one end of the two sliders 1 away from each other, the rectangular frame is fixed to the front end of a slider 2 located on the front side, the rear fixing plate is fixed to the rear end of a slider 2 located on the rear side, the driving assembly is arranged in the base plate, and the support assembly is arranged on the rectangular frame.

[0006] Furthermore, as a preference, a built-in groove is opened in the center of the bottom plate, and the built-in groove is respectively connected to the two first slide grooves and the two second slide grooves.

[0007] Further, as a preference, the drive assembly includes a servo motor, a turntable, a column and a connecting rod; the servo motor is fixedly mounted on the inner wall of the built-in groove, the turntable is fixed to the output end of the servo motor, four columns are arranged on the circumference, respectively fixed on the eccentric side of the upper end of the turntable, and four connecting rods are arranged, one end of which is hinged on the column, and the other end is hinged to the end close to each other of the two sliders one and the two sliders two.

[0008] Further, as a preference, the support assembly includes threaded rod one, threaded rod two, connecting rod, sleeve, gear, pillar and rack; the left end of threaded rod one rotates to pass through the left wall of the rectangular frame, the right end of threaded rod two rotates to pass through the right wall of the rectangular frame, the connecting rod is fixed on the upper end wall of the rectangular frame, the sleeve is fixed to the lower end of the connecting rod, the ends of threaded rod one and threaded rod two that are close to each other are respectively rotated and set in the sleeve, and the thread rotation directions of threaded rod one and threaded rod two are opposite, there are two gears, which are respectively fixed on the ends of threaded rod one and threaded rod two that are away from each other, there are two pillars, which are respectively fixed on the bottom plate, there are two racks, which are respectively fixed on two pillars, and the two gears are respectively engaged with the two racks.

[0009] Further, as a preference, the support assembly also includes an internal threaded ring 1, an internal threaded ring 2, a connecting tube and an isolation plate; the internal threaded ring 1 is configured with two groups, each group is configured with two, and each group of two internal threaded rings 1 are threadedly connected to the threaded rod 1, the internal threaded ring 2 is configured with two groups, each group is configured with two, and each group of two internal threaded rings 2 are threadedly connected to the threaded rod 2, the connecting tube is configured with four, each connecting tube is sealed and fixed between each group of two internal threaded rings 1 or between each group of two internal threaded rings 2, and the cross-section of the connecting tube is rectangular, the isolation plates are configured with four groups, each group is configured with two, and each group of two isolation plates is sealingly sleeved on each connecting tube, and the isolation plates are movably contacted with the upper and lower end walls of the rectangular frame, and each group of two isolation plates is sealed and connected by an elastic member, and each group of two isolation plates is respectively connected to each group of two internal threaded rings 1 or each group of two internal threaded rings 2 with a limiting spring, and rubber pads are fixed on both sides of the lower ends of each group of two isolation plates; Wherein, a through hole is opened on the central side wall of the connecting cylinder.

[0010] Furthermore, preferably, the elastic member is made of rubber.

[0011] Furthermore, as a preference, the support assembly also includes a connecting tube, a sliding rod, a return spring, a hose 1 and a hose 2; the connecting tube is sealed and rotates through the side walls of multiple groups of isolation plates, the sliding rod is configured with two, one end is respectively sealed and slidably set in the two ends of the connecting tube, and the other end is respectively in active contact with the side walls of the two side fixed plates, the return spring is configured with two, which are connected between the sliding rod and the connecting tube, the hose 1 is configured with three, each hose 1 is connected and set between two adjacent connecting tubes, and the hose 2 is connected and set between the connecting tube and one of the hoses 1.

[0012] Advantages of the present invention: Through the joint use of the driving component and the supporting component, on the one hand, the four groups of isolation plates can be moved backward synchronously with the backward movement of the toes, thereby preventing the toe webs from moving upward, and at the same time, the two isolation plates between two adjacent toes can always fit tightly with the toes, thereby more effectively preventing the toe webs from moving upward; on the other hand, each group of isolation plates can be moved toward the center position synchronously with the patient's toes after the swelling subsides, thereby preventing the toe gaps from being too large and the wound from being difficult to heal quickly, and at the same time the patient can get a good sense of comfort.

[0013] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the drive assembly of the present invention; Figure 3 It is a schematic structural diagram of the support assembly of the present invention; Figure 4 It is an enlarged view of point A of the present invention; Figure 5 It is a schematic diagram of the cross-sectional top view structure and internal structure of the isolation plate of the present invention.

[0016] 1. Bottom plate; 2. Slider 1; 3. Slider 2; 4. Side fixing plate; 5. Rectangular frame; 6. Rear fixing plate; 7. Drive assembly; 8. Support assembly; 11. Slide 1; 12. Slide 2; 13. Built-in groove; 71. Servo motor; 72. Turntable; 73. Column; 74. Connecting rod; 81. Threaded rod 1; 82. Threaded rod 2; 83. Connecting rod; 84. Sleeve; 85. Gear; 86. Pillar; 87. Rack; 801. Internal threaded ring 1; 802. Internal threaded ring 2; 803. Connecting tube; 804. Isolation plate; 8041. Rubber pad; 805. Elastic member; 806. Limiting spring; 8031. Through hole; 91. Connecting pipe; 92. Sliding rod; 93. Return spring; 94. Hose 1; 95. Hose 2. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0019] refer to Figures 1 to 5 , a retractable brace for preventing upward migration of toe webs after syndactyly surgery, comprising a base plate 1, a slider 1 2, a slider 2 3, a side fixing plate 4, a rectangular frame 5, a rear fixing plate 6, a driving assembly 7 and a support assembly 8; the base plate 1 is configured as a rectangular plate, and its upper end surface is provided with two slide grooves 11 along the left and right directions, and the upper end surface of the base plate 1 is provided with two slide grooves 2 12 along the front and rear directions, the slider 1 2 is provided with two, which are respectively slidably set in the two slide grooves 11, the slider 2 3 is provided with two, which are respectively slidably set in the two slide grooves 2 12, the side fixing plates 4 are provided with two, which are respectively fixed at one end of the two sliders 2 away from each other, the rectangular frame 5 is fixed at the front end of a slider 2 3 located on the front side, the rear fixing plate 6 is fixed at the rear end of a slider 2 3 located on the rear side, the driving assembly 7 is arranged in the base plate 1, and the support assembly 8 is arranged on the rectangular frame 5.

[0020] The rear fixing plate 6 is made of soft material and is configured in an arc shape, so that the rear fixing plate 6 can fit the rear end of the foot.

[0021] As a preferred embodiment, a built-in groove 13 is opened in the center of the bottom plate 1, and the built-in groove 13 is connected to the two first slide grooves 11 and the two second slide grooves 12 respectively.

[0022] As a preferred embodiment, the drive assembly 7 includes a servo motor 71, a turntable 72, a column 73 and a connecting rod 74; the servo motor 71 is fixedly mounted on the inner wall of the built-in groove 13, the turntable 72 is fixed to the output end of the servo motor 71, and four columns 73 are arranged on the circumference, respectively fixed on the eccentric side of the upper end of the turntable 72, and four connecting rods 74 are arranged, one end of which is hinged on the column 73, and the other end is hinged to the close end of the two sliders 1 2 and the two sliders 2 3.

[0023] See also Figures 1 to 2When the servo motor 71 is started, the servo motor 71 drives the turntable 72 to rotate, so that the four columns 73 will rotate synchronously by a certain angle, and then the two sliders 1 2 and the two sliders 2 3 can be driven to gather or expand synchronously through the four connecting rods 74, that is, the two side fixing plates 4, the rectangular frame 5 and the rear fixing plate 6 can adjust their positions according to the degree of swelling of the patient's foot, so as to stably clamp the patient's foot.

[0024] As a preferred embodiment, the support assembly 8 includes a threaded rod 1 81, a threaded rod 2 82, a connecting rod 83, a sleeve 84, a gear 85, a pillar 86 and a rack 87; the left end of the threaded rod 1 81 rotates to pass through the left wall of the rectangular frame 5, the right end of the threaded rod 2 82 rotates to pass through the right wall of the rectangular frame 5, the connecting rod 83 is fixed on the upper end wall of the rectangular frame 5, the sleeve 84 is fixed to the lower end of the connecting rod 83, the ends of the threaded rod 1 81 and the threaded rod 2 82 that are close to each other are respectively rotated and set in the sleeve 84, and the thread rotation directions of the threaded rod 1 81 and the threaded rod 2 82 are opposite, there are two gears 85, which are respectively fixed on the ends of the threaded rod 1 81 and the threaded rod 2 82 that are away from each other, there are two pillars 86, which are respectively fixed on the base plate 1, there are two racks 87, which are respectively fixed on the two pillars 86, and the two gears 85 are respectively engaged with the two racks 87.

[0025] That is to say, when the slider 2 3 moves, it will drive the rectangular frame 5 to move synchronously, and when the rectangular frame 5 moves, it will drive the two gears 85 to move. Therefore, the two gears 85 will engage with the two racks 87, and the two gears 85 will respectively drive the threaded rod 1 81 and the threaded rod 2 82 to rotate in the same direction.

[0026] As a preferred embodiment, the support assembly 8 also includes an internal threaded ring 1 801, an internal threaded ring 2 802, a connecting tube 803 and an isolation plate 804; the internal threaded ring 1 801 is configured in two groups, each group is configured with two, and each group of two internal threaded rings 1 801 are threadedly connected to the threaded rod 1 81, the internal threaded ring 2 802 is configured in two groups, each group is configured with two, and each group of two internal threaded rings 2 802 are threadedly connected to the threaded rod 2 82, and the connecting tube 803 is configured in four groups, each connecting tube 803 is sealed and fixed between each group of two internal threaded rings 1 801 or each group of two internal threaded rings. The second threaded ring 802 is located between the two threads of the second threaded ring 802, and the cross-section of the connecting tube 803 is rectangular. The isolation plates 804 are configured in four groups, with two in each group. The two isolation plates 804 in each group are sealed and sleeved on each connecting tube 803, and the isolation plates 804 are in active contact with the upper and lower end walls of the rectangular frame 5. The two isolation plates 804 in each group are sealed and connected by elastic members 805. A limiting spring 806 is connected between the two isolation plates 804 in each group and the two internally threaded rings 1 801 or the two internally threaded rings 2 802, respectively. Rubber pads 8041 are fixed on both sides of the lower ends of the two isolation plates 804 in each group. A through hole 8031 ​​is formed on the central side wall of the connecting tube 803 .

[0027] In addition, the rubber pads 8041 fixed on both sides of each set of two isolation plates 804 form a V shape, so that they can fit the toe web.

[0028] It should be explained that the function of the above-mentioned middle limit spring 806 is to make each group of two isolation plates 804 symmetrical about the center of the connecting cylinder 803.

[0029] As a preferred embodiment, the material of the elastic member 805 is configured as rubber, that is, a closed space is formed between the elastic member 805 and the two isolation plates 804. If this closed space increases, the elastic member 805 will expand and the distance between the two isolation plates 804 will increase. Under the limiting action of the limiting spring 806, the two isolation plates 804 are always symmetrical with the center of the connecting tube 803.

[0030] As a preferred embodiment, the support assembly 8 also includes a connecting tube 91, a slide rod 92, a return spring 93, a hose 1 94 and a hose 2 95; the connecting tube 91 is sealed and rotates through the side walls of multiple groups of isolation plates 804, and there are two slide rods 92, one end of which is sealed and slidably set in the two ends of the connecting tube 91, and the other end is respectively in active contact with the side walls of the two side fixed plates 4, and there are two return springs 93, which are connected between the slide rod 92 and the connecting tube 91, and there are three hoses 1 94, each hose 1 94 is connected between two adjacent connecting tubes 803, and the hose 2 95 is connected between the connecting tube 91 and one of the hoses 1 94.

[0031] The connecting pipe 91 can limit the thread conduction mentioned above.

[0032] If all five toes of the patient require support, please refer to Figures 3 to 5 The patient's five toes extend into the space below the threaded rod 1 81 and the threaded rod 2 82, and at the same time, four groups of isolation plates 804 are placed between adjacent toes. When the rectangular frame 5 moves backward, the threaded rod 1 81 and the threaded rod 2 82 will rotate backward. It should be noted here that since the cross-section of the connecting tube 803 is rectangular, when the two threaded rods transmit the two groups of internal threaded rings through the threads, the isolation plates 804 will limit the rotation of the connecting tube 803 to prevent the connecting tube 803 from slipping in the isolation plates 804. Therefore, through the thread transmission, the two groups of internal threaded rings 1 801 on the left will drive the two groups of isolation plates 804 on the left. When the toes move to the right, the two sets of internal threaded rings 802 on the right side will drive the two sets of isolation plates 804 on the right side to move to the left. That is to say, after a period of time after the operation, the swelling of the toes will gradually subside, and the toes will move backward. The four sets of isolation plates 804 will move backward synchronously, thereby inhibiting the upward movement of the toe webs. Moreover, while the swollen toes move backward, the toes will also move toward the middle. Therefore, through the above process, the patient's toes can be adaptively moved toward the middle by a certain distance, preventing the toe gap from being too large and the wound from being difficult to heal quickly, that is, preventing compression injuries, and at the same time, the patient can get a good sense of comfort. In addition, when the rectangular frame 5 moves backward, the two side fixing plates 4 will shrink synchronously, so that the two side fixing plates 4 will push the two sliding rods 92 to move into the connecting tube 91, so that the volume in the connecting tube 91 is reduced and the air pressure is increased, so that the gas in the connecting tube 91 will enter the four connecting tubes 803 through the hose 2 95 and the three hoses 1 94, and enter the closed space between the isolation plate 804 and the elastic member 805 through the through hole 8031, so that the volume in this closed space increases, and the distance between each group of two isolation plates 804 increases, so that the two isolation plates 804 can always fit with the toe web to prevent the existence of a gap between the isolation plate 804 and the toe web, thereby more effectively preventing the toe web from moving up.

[0033] Specifically, during implementation, after the patient completes the syndactyly surgery, the servo motor 71 is controlled to drive in reverse, and the two side fixing plates 4, the rectangular frame 5 and the rear fixing plate 6 are expanded synchronously through the driving component 7. Then the patient's foot is placed on the base plate 1, and the four groups of isolation plates 804 are respectively inserted into the gaps between the patient's five toes, and the servo motor 71 is controlled to drive in the forward direction. At this time, the patient's entire foot is fully supported. After a period of time after the operation, when the swelling of the foot gradually subsides, the servo motor 71 is controlled to drive in the forward direction again. At this time, the driving component 7 and the support component 8 can not only make the four groups of isolation plates 804 move backward synchronously with the backward movement of the toes, thereby preventing the toe webs from moving up, but also make the two isolation plates 804 between two adjacent toes always fit tightly with the toes, thereby more effectively preventing the toe webs from moving up, and each group of isolation plates 804 as a whole will move toward the center synchronously with the patient's toes after the swelling subsides, thereby speeding up the wound healing speed and providing the patient with a good sense of comfort.

[0034] 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 spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A retractable brace for preventing upward migration of the toe web after syndactyly surgery, characterized in that: The invention comprises a bottom plate (1), a slider 1 (2), a slider 2 (3), a side fixing plate (4), a rectangular frame (5), a rear fixing plate (6), a driving assembly (7) and a supporting assembly (8); the bottom plate (1) is configured as a rectangular plate, and its upper end surface is provided with two slide grooves 1 (11) along the left and right directions, the upper end surface of the bottom plate (1) is provided with two slide grooves 2 (12) along the front and rear directions, the slider 1 (2) is configured with two, and is respectively slidably arranged in the two slide grooves 1 (11), the slider 2 (3) is configured with two, and is respectively slidably arranged in the two slide grooves 2 (12), the side fixing plate (4) is configured with two, and is respectively fixed to the ends of the two sliders 1 (2) that are away from each other, the rectangular frame (5) is fixed to the front end of a slider 2 (3) located on the front side, the rear fixing plate (6) is fixed to the rear end of a slider 2 (3) located on the rear side, the driving assembly (7) is arranged in the bottom plate (1), and the supporting assembly (8) is arranged on the rectangular frame (5).

2. The retractable brace for preventing upward migration of the toe web after syndactyly surgery according to claim 1, characterized in that: A built-in groove (13) is provided in the center of the bottom plate (1), and the built-in groove (13) is respectively connected to the two first slide grooves (11) and the two second slide grooves (12).

3. The retractable brace for preventing upward migration of the toe web after syndactyly surgery according to claim 2, characterized in that: The driving assembly (7) includes a servo motor (71), a turntable (72), a column (73) and a connecting rod (74); the servo motor (71) is fixedly mounted on the inner wall of the built-in groove (13); the turntable (72) is fixed to the output end of the servo motor (71); four columns (73) are arranged around the circumference and are respectively fixed to the eccentric side of the upper end of the turntable (72); four connecting rods (74) are arranged, one end of each of which is hinged to the column (73) and the other end of each of which is hinged to the mutually adjacent ends of the two sliders (2) and the two sliders (3).

4. The retractable brace for preventing upward migration of the toe web after syndactyly surgery according to claim 1, characterized in that: The support assembly (8) includes a threaded rod (81), a threaded rod (82), a connecting rod (83), a sleeve (84), a gear (85), a pillar (86) and a rack (87); the left end of the threaded rod (81) rotates through the left side wall of the rectangular frame (5), the right end of the threaded rod (82) rotates through the right side wall of the rectangular frame (5), the connecting rod (83) is fixed on the upper end wall of the rectangular frame (5), the sleeve (84) is fixed on the lower end of the connecting rod (83), and the threaded rod (81) and the rack (87) are connected. The ends of the threaded rods (82) that are close to each other are respectively rotated and set in the sleeves (84), and the threaded directions of the threaded rods (81) and the threaded rods (82) are opposite. There are two gears (85) respectively fixed on the ends of the threaded rods (81) and the threaded rods (82) that are away from each other. There are two pillars (86) respectively fixed on the bottom plate (1). There are two racks (87) respectively fixed on the two pillars (86), and the two gears (85) are respectively engaged with the two racks (87).

5. The retractable brace for preventing upward migration of the toe web after syndactyly surgery according to claim 4, characterized in that: The support assembly (8) further comprises an internal threaded ring 1 (801), an internal threaded ring 2 (802), a connecting tube (803) and an isolation plate (804); the internal threaded ring 1 (801) is configured in two groups, each group is configured with two, and each group of two internal threaded rings 1 (801) are threadedly connected to the threaded rod 1 (81); the internal threaded ring 2 (802) is configured in two groups, each group is configured with two, and each group of two internal threaded rings 2 (802) are threadedly connected to the threaded rod 2 (82); the connecting tube (803) is configured in four groups, and each connecting tube (803) is sealed and fixed between each group of two internal threaded rings 1 (801) or each group of two internal threaded rings 2 (803). 02), and the cross section of the connecting tube (803) is rectangular, the isolation plates (804) are configured in four groups, each group is configured with two, each group of two isolation plates (804) is sealed and sleeved on each connecting tube (803), and the isolation plates (804) are in movable contact with the upper and lower end walls of the rectangular frame (5), each group of two isolation plates (804) are sealed and connected by an elastic member (805), and each group of two isolation plates (804) are respectively connected to each group of two internal thread rings (801) or each group of two internal thread rings (802) with a limiting spring (806), and each group of two isolation plates (804) are fixed with rubber pads (8041) on both sides of the lower ends; A through hole (8031) is provided on the central side wall of the connecting cylinder (803).

6. The retractable brace for preventing upward migration of the toe web after syndactyly surgery according to claim 5, characterized in that: The elastic member (805) is made of rubber.

7. The retractable brace for preventing upward migration of the toe web after syndactyly surgery according to claim 5, characterized in that: The support assembly (8) further includes a connecting tube (91), a slide rod (92), a return spring (93), a hose 1 (94) and a hose 2 (95); the connecting tube (91) is sealed and rotates through the side walls of the plurality of isolation plates (804); the slide rod (92) is provided with two, one end of which is respectively sealed and slidably arranged in the two ends of the connecting tube (91), and the other end is respectively in active contact with the side walls of the two side fixing plates (4); the return spring (93) is provided with two, which are connected between the slide rod (92) and the connecting tube (91); the hose 1 (94) is provided with three, each hose 1 (94) is connected and arranged between two adjacent connecting tubes (803); the hose 2 (95) is connected and arranged between the connecting tube (91) and one of the hose 1 (94).

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