A bionic finger

Abstract

The utility model discloses a follow-up bionic artificial finger including a wrist fixing component, at least one finger rotation component, at least one finger component, and a finger base sleeve component. The finger base sleeve component includes a connecting support and at least one finger sleeve. The connecting support is connected to the finger base knuckle, and the finger sleeve is arranged on the side of the connecting support. The finger sleeve is connected to the connecting support through a multi-degree-of-freedom adjustable connecting structure. The technical solution provided by the utility model can cope with patients with completely severed fingers and residual finger bases with impaired functions. In terms of specific structure, it can be adapted to individual differences of patients through multi-degree-of-freedom adjustment; the overall structure is simple, the production cost is controllable, and it can support quick and cost-controlled personal customization, which is conducive to the large-scale promotion and application of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a follow-up bionic finger. Background Art

[0002] Bionic artificial fingers are used for disabled people who have lost part of their fingers. The applicant has published patent CN219070814U in this technical field. A bionic artificial finger discloses an artificial finger suitable for disabled people with residual finger roots. The patent drives the movement of the bionic artificial finger through the incomplete finger roots, which can simulate the bending and extension movement of human fingers to a large extent, achieving the effect of natural bionics. During use, it was found that some patients have completely missing finger roots, the root of the broken finger is too short, and the function of the broken finger is impaired. In this case, the original patent has applicability problems, and the broken finger cannot drive the artificial finger movement at all or cannot drive it well. Summary of the invention

[0003] The utility model aims to provide a follow-up bionic finger to solve the problems existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a follow-up bionic artificial finger, which includes a wrist fixing component, at least one finger rotation component and at least one finger component; the finger component is composed of a base knuckle, a middle knuckle and a fingertip knuckle, and also includes a base sleeve component, the base sleeve component includes a connecting support and at least one finger sleeve, the connecting support is connected to the base knuckle, and the finger sleeve is arranged on the side of the connecting support.

[0005] Preferably, the finger sleeve assembly includes two finger sleeves, and the two finger sleeves are arranged opposite to each other on the side surfaces of the connecting support.

[0006] Preferably, the connecting support is fixedly connected to the finger root and finger joint through a rotating connecting shaft assembly, the rotating connecting shaft assembly includes a lower seat and an upper seat, the lower seat is fixedly connected to the upper part of the connecting support, the upper part of the lower seat is hinged to the lower part of the upper seat, and the upper part of the upper seat is fixedly connected to the finger root and finger joint.

[0007] Preferably, the finger sleeve and the connecting support are an integral structure.

[0008] Preferably, the finger sleeve is rotatably connected to the connecting support, and the connecting support is narrower at the connection with the finger sleeve.

[0009] Preferably, a horizontally arranged connecting plate is provided on the connecting side of the finger sleeve, the connecting plate is provided with a long slot, a first groove is provided on the side close to the connecting support, a plurality of longitudinally arranged mounting screw holes are provided on the connecting support, a longitudinal second groove is provided on the outer side of the mounting screw hole, a cross connecting slide plate is provided between the finger sleeve and the connecting support, the cross connecting slide plate presents a cross structure, including a horizontal slide plate and a longitudinal slide plate, wherein the horizontal slide plate cooperates with the first groove, and the longitudinal slide plate cooperates with the second groove, a through hole is provided at the center thereof, and when fixed, screws are passed through the slot and the through hole of the cross connecting slide plate to connect to the mounting screw hole.

[0010] Preferably, the finger sleeve assembly includes a connecting support, at least one finger sleeve, and a connecting structure, the connecting structure includes a boss, a rotating fork, a horizontal adjustment plate, and a connecting slide; the boss is arranged on one side of the finger sleeve, and a threaded hole is arranged in the center of the boss; one side of the rotating fork is fixedly connected to the threaded hole of the boss through a threaded structure, and the other side of the rotating fork is hinged to the end of the horizontal adjustment plate; the horizontal adjustment plate is provided with a long slot, and a first groove is arranged near the side of the connecting support, and a plurality of longitudinally arranged mounting screw holes are arranged on the connecting support, and a longitudinal second groove is arranged on the outside of the mounting screw hole, and a connecting slide is arranged between the finger sleeve and the connecting support, and the connecting slide presents a cross structure, including a horizontal slide and a longitudinal slide, wherein the horizontal slide cooperates with the first groove, and the longitudinal slide cooperates with the second groove, and a through hole is arranged in the center thereof, and when fixed, screws are passed through the slots and the through holes of the cross connecting slide to connect to the mounting screw holes.

[0011] The utility model provides a bionic artificial finger movement driven by the adjacent fingers of the severed finger, which can be used for patients with completely severed fingers and impaired functions of the remaining finger roots. In terms of specific structure, it can be adapted to the individual differences of patients through multiple free adjustments; the overall structure is simple, the production cost is controllable, and it can support fast and cost-controlled personal customization, which is conducive to the large-scale promotion and application of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the patent technical solution previously applied for by the applicant.

[0013] Figure 2 It is a schematic diagram of a technical solution of an embodiment of the utility model.

[0014] Figure 3 It is a schematic diagram of the technical solution of the second embodiment of the utility model.

[0015] Figure 4 It is a schematic diagram of the technical solution of the third embodiment of the utility model.

[0016] Figure 5 It is a schematic diagram of the technical solution of the fourth embodiment of the utility model.

[0017] Figure 6 It is a schematic diagram of the technical solution of the fifth embodiment of the utility model.

[0018] Figure 7 It is a schematic diagram of the technical solution of the sixth embodiment of the utility model.

[0019] Figure 8 It is a schematic diagram of another state of the technical solution of the sixth embodiment of the utility model.

[0020] Fig. 9 It is a schematic diagram of an explosion of a root sleeve assembly according to the technical solution of the sixth embodiment of the utility model.

[0021] Fig.10 It is a schematic diagram of the technical solution of the seventh embodiment of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Attached Figure 1 The figure shows a schematic diagram of the technical solution of the patent application previously filed by the applicant. The bionic artificial finger includes a wrist fixing component 10, at least one finger rotation component 20 and at least one finger component 30. The finger component 30 is composed of a finger root knuckle, a middle knuckle and a finger tip knuckle. The finger root knuckle 30-1 includes a finger root first driving member 311, a finger root second driving member 312 and a finger root sleeve 313, a fastening screw plate 314 and a fastening screw 315. The finger root sleeve 313 is an annular structure, and the top is connected to the finger root second driving member 312. Specifically, the lower end of the finger root sleeve 313 is a circular ring, which is used to insert the patient's defective finger root into it to drive the finger component to move. The circular ring has a boss at the upper end, and a through hole is provided in the middle of the boss. The fastening screw 315 passes through the middle-end closed groove 3124, the through hole on the boss of the finger root sleeve 313 and is fixed to the fastening screw plate 314, so that the finger root sleeve 313 is fixed on the bottom surface of the second driving member 312 of the finger root. By loosening the fastening screw 315, the finger root sleeve 313 can slide back and forth along the middle-end closed groove 3124 to adjust the position of the finger root sleeve 313. After the position is determined, the fastening screw 315 can be tightened to fix it.

[0024] The utility model improves the structure of the finger root sleeve 313 on the basis of the prior application, as shown in the attached Figure 2 , 3As shown, the follower bionic artificial finger includes a wrist fixing component 10, at least one finger rotation component 20 and at least one finger component 30, the finger component 30 is composed of a finger root knuckle 30-1, a middle knuckle 30-2, and a finger tip knuckle 30-3; the finger root sleeve component 4 is fixedly connected to the finger root knuckle 30-1, and the finger root sleeve component 4 includes a connecting support 41 and at least one finger sleeve 42, the connecting support 41 is connected to the finger root knuckle 30-1, and the finger sleeve 42 is arranged on the side of the connecting support 41, and can be arranged on only one (attached Figure 2 ), or one side can be provided with a (attached Figure 3 ).

[0025] The connecting support 41 is fixedly connected to the finger root knuckle 30-1 with a threaded hole at the top. Figure 2 , 3 As shown, the finger sleeve 42 and the connecting support 41 are an integral structure, and can be an integral injection-molded structure. The connecting support 41 and the finger sleeve 42 can be made of different materials, and the material of the finger sleeve 42 should be softer.

[0026] As attached Figure 4 , 5 As shown, the finger sleeve 42 is rotatably connected to the connecting support 41. Figure 4 In the embodiment, the finger sleeve 42 is provided with a through hole and is rotatably connected to the connecting support 41 through a bolt structure. Figure 5 The finger sleeve 42 is connected to the connection support 41 through a ball joint structure. The finger sleeve 42 and the connection support 41 are rotatably connected to support adjacent fingers to rotate relative to the connection support 41, which is conducive to reducing fatigue during long-term use. Furthermore, the thickness of the connection support 41 is relatively narrow at the connection with the finger sleeve 42 to create a larger space, ensuring reliable connection while achieving comfort for fingers to wear.

[0027] As attached Figure 6As shown, the finger sleeve 42 and the connecting support 41 are connected in a multi-degree-of-freedom adjustable manner. Specifically, a horizontally arranged connecting plate a0 is provided on the connecting side of the finger sleeve 42, and the connecting plate is provided with a long slot a1. A first groove a2 is provided on the side close to the connecting support 41. A plurality of longitudinally arranged mounting screw holes a3 are provided on the connecting support 41, and a longitudinal second groove a4 is provided on the outer side of the mounting screw hole. A cross connecting slide plate a5 is provided between the finger sleeve 42 and the connecting support 41. The cross connecting slide plate a5 presents a cross structure, including a horizontal slide plate and a longitudinal slide plate, wherein the horizontal slide plate cooperates with the first groove a2, and the longitudinal slide plate cooperates with the second groove a4, and a through hole is provided at the center thereof. When fixed, a screw a6 is passed through the slot a1 and the through hole of the cross connecting slide plate a5 to connect to the mounting screw hole a3. The relative height of the finger sleeve 42 can be adjusted by selecting the mounting screw hole a3 at different positions, and the front and rear position of the finger sleeve 42 in the horizontal direction can be adjusted by the relative position of the screw a6 in the slot a1.

[0028] Attached Figure 7 , 8 9 provides another embodiment of the multi-degree-of-freedom adjustable connection structure between the finger sleeve 42 and the connecting support 41, the finger sleeve assembly 4 includes a connecting support 41, at least one finger sleeve 42, and a connecting structure 43, and the connecting structure includes a boss 430, a rotating fork 431, a horizontal adjustment plate 432, and a connecting slide plate 433.

[0029] The boss 430 is disposed on one side of the finger sleeve 42, and a threaded hole is disposed in the center of the boss 430. One side of the rotating fork 431 is fixedly connected to the threaded hole of the boss 430 through a threaded structure, and the horizontal distance between the center axis of the finger sleeve and the residual finger, that is, the distance between the adjacent fingers and the residual finger, is adjusted by adjusting the screwing depth of the threaded structure. The boss 430 and the rotating fork 431 are rotatably connected by bolts, as shown in the attached Figure 7 , 8 As shown, it can be seen that the finger sleeve 42 rotates relative to the axis of the threaded hole of the boss 430. The rotation can optimize the wearing experience and avoid finger discomfort caused by long-term use.

[0030] The other side of the rotating fork 431 is hinged to the end of the horizontal adjustment plate 432. The specific hinge structure can be that the end of the rotating fork 431 is provided with a connecting fork plate, and the end of the horizontal adjustment plate 432 is provided with a convex plate that can extend into the connecting fork plates, and the connecting fork plate and the convex plate are connected by a rotating shaft.

[0031] The horizontal adjustment plate 432 is provided with a long slot a1, and a first groove a2 is provided on one side close to the connecting support 41. A plurality of longitudinally arranged mounting screw holes a3 are provided on the connecting support 41, and a longitudinal second groove a4 is provided on the outer side of the mounting screw hole. A connecting slide plate 433 is provided between the finger sleeve 42 and the connecting support 41. The connecting slide plate 433 presents a cross structure, including a horizontal slide plate and a longitudinal slide plate, wherein the horizontal slide plate cooperates with the first groove a2, and the longitudinal slide plate cooperates with the second groove a4. A through hole is provided at the center thereof. When fixed, a screw a6 is passed through the slot a1 and the through hole of the cross connecting slide plate a5 to connect to the mounting screw hole a3. The relative height of the finger sleeve 42 can be adjusted by selecting the mounting screw hole a3 at different positions, and the front and rear position of the finger sleeve 42 in the horizontal direction can be adjusted by the relative position of the screw a6 in the slot a1.

[0032] Attached Fig.10 Another embodiment of the multi-degree-of-freedom adjustable connection structure between the connecting support 41 and the finger root joint 30-1 is provided, wherein the connecting support 41 is fixedly connected to the finger root joint 30-1 via a rotating connecting shaft assembly 41a, the rotating connecting shaft assembly 41a comprises a lower seat 41a1 and an upper seat 41a2, the lower seat 41a1 is fixedly connected to the upper part of the connecting support 41 via a bolt structure, the upper part of the lower seat 41a1 is hinged to the lower part of the upper seat 41a2, and the upper part of the upper seat 41a2 is connected to the finger root joint 30-1 via a bolt structure.

[0033] More specifically, the lower seat 41a1 is provided with a central protrusion on the upper portion, and the upper seat 41a2 is provided with side protrusions opposite thereto on the lower portion. The central protrusion of the lower seat 41a1 is inserted between the side protrusions of the upper seat 41a2 and is hinged via a pin 41a3.

[0034] It should be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

Claims

1. A follow-up bionic artificial finger, comprising a wrist fixing component, at least one finger rotating component and at least one finger component; the finger component is composed of a base knuckle, a middle knuckle and a fingertip knuckle, characterized in that: It also includes a finger base sleeve assembly, which includes a connecting support and at least one finger sleeve. The connecting support is connected to the finger base knuckle, and the finger sleeve is arranged on the side of the connecting support.

2. The follow-up bionic finger according to claim 1, characterized in that: The finger sleeve assembly comprises two finger sleeves, which are arranged oppositely on the side surfaces of the connecting support.

3. The follow-up bionic finger according to claim 1, characterized in that: The connecting support is fixedly connected to the root and knuckle of the finger through a rotating connecting shaft assembly, and the rotating connecting shaft assembly includes a lower seat and an upper seat. The lower seat is fixedly connected to the upper part of the connecting support, the upper part of the lower seat is hinged to the lower part of the upper seat, and the upper part of the upper seat is fixedly connected to the root and knuckle of the finger.

4. The follow-up bionic finger according to any one of claims 1, 2 or 3, characterized in that: The finger sleeve and the connecting support are an integrated structure.

5. The follow-up bionic finger according to any one of claims 1, 2 or 3, characterized in that: The finger sleeve is rotatably connected to the connecting support, and the connecting support is relatively narrow at the connection portion with the finger sleeve.

6. The follow-up bionic finger according to any one of claims 1, 2 or 3, characterized in that: A horizontally arranged connecting plate is provided on the connecting side of the finger sleeve, and the connecting plate is provided with a long slot, and a first groove is provided on the side close to the connecting support, and a plurality of longitudinally arranged mounting screw holes are provided on the connecting support, and a longitudinal second groove is provided on the outer side of the mounting screw hole, and a cross connecting slide plate is provided between the finger sleeve and the connecting support, and the cross connecting slide plate presents a cross structure, including a horizontal slide plate and a longitudinal slide plate, wherein the horizontal slide plate cooperates with the first groove, and the longitudinal slide plate cooperates with the second groove, and a through hole is provided at the center thereof, and when fixing, screws are passed through the slot and the through hole of the cross connecting slide plate to connect to the mounting screw hole.

7. The follow-up bionic finger according to any one of claims 1, 2 or 3, characterized in that: The finger sleeve assembly includes a connecting support, at least one finger sleeve, and a connecting structure, and the connecting structure includes a boss, a rotating fork, a horizontal adjustment plate, and a connecting slide; the boss is arranged on one side of the finger sleeve, and a threaded hole is arranged in the center of the boss; one side of the rotating fork is fixedly connected to the threaded hole of the boss through a threaded structure, and the other side of the rotating fork is hinged to the end of the horizontal adjustment plate; the horizontal adjustment plate is provided with a long slot, and a first groove is arranged near the side of the connecting support, and a plurality of longitudinally arranged mounting screw holes are arranged on the connecting support, and a longitudinal second groove is arranged on the outside of the mounting screw hole, and a connecting slide is arranged between the finger sleeve and the connecting support, and the connecting slide presents a cross structure, including a horizontal slide and a longitudinal slide, wherein the horizontal slide cooperates with the first groove, and the longitudinal slide cooperates with the second groove, and a through hole is arranged in the center thereof, and when fixed, screws are passed through the slots and the through holes of the cross connecting slide to connect to the mounting screw holes.

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