WO2012175038A1 - Finger prosthesis - Google Patents

Finger prosthesis Download PDF

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Publication number
WO2012175038A1
WO2012175038A1 PCT/CN2012/077350 CN2012077350W WO2012175038A1 WO 2012175038 A1 WO2012175038 A1 WO 2012175038A1 CN 2012077350 W CN2012077350 W CN 2012077350W WO 2012175038 A1 WO2012175038 A1 WO 2012175038A1
Authority
WO
WIPO (PCT)
Prior art keywords
prosthesis
shifting part
finger
intervals
tip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/077350
Other languages
French (fr)
Inventor
Tik-Pui Daniel FONG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chinese University of Hong Kong CUHK
Original Assignee
Chinese University of Hong Kong CUHK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chinese University of Hong Kong CUHK filed Critical Chinese University of Hong Kong CUHK
Publication of WO2012175038A1 publication Critical patent/WO2012175038A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/54—Artificial arms or hands or parts thereof
    • A61F2/58—Elbows; Wrists ; Other joints; Hands
    • A61F2/583—Hands; Wrist joints
    • A61F2/586—Fingers

Definitions

  • Hand function is very important to human's daily life. Finger loss leads to weakened hand function, medical burden, diminished working capability and inferior quality of life.
  • "X-finger" the world's first active-function artificial finger, has been invented for patients to regain the finger function. Such finger allows users to perform flexion and extension actively. However, due to the completed structure, this kind of finger is expensive and is often not affordable to most people, especially to those low- income factory workers who lost their fingers due to occupational accidents.
  • the current proposal aims to design an inexpensive artificial finger.
  • a finger prosthesis comprises a tip for simulating different functions of a finger and a ring for attaching the prosthesis to a stump.
  • the finger prosthesis further comprises a joint coupled between the tip and the ring, wherein the joint comprises an interlocking mechanism configured to allow the joint to rotate at lockable intervals so as to lock the tip into different positions during a flexion period of the finger prosthesis.
  • a finger prosthesis comprising: a tip for simulating different functions of a finger; and a ring for attaching the prosthesis to a stump.
  • the finger prosthesis further comprises a joint coupled between the tip and the ring, wherein the joint comprises a shifting part with a first engaging end; and a rotating wheel with a second engaging end, wherein the second engaging end is capable of being interlocked with the first engaging end by a plurality of intervals.
  • the rotating part may be provided with a rebounding mechanism configured to make the rotating wheel to return to a start position at the end of the intervals.
  • a finger prosthesis comprising: a tip for simulating different functions of a finger; a ring for attaching the prosthesis to a stump; and a joint coupled between the tip and the ring.
  • the joint comprises:
  • a support located in the capacity for supporting one side of the shifting part to provide a spring-like nature that allows little displacement of the shifting part
  • the rotating wheel is provided with a first protuberance and a second protuberance located two sides of the second gears, and wherein, during an interlocked stage, the shifting part is located with one side of the capacity, at the end of the intervals, the first protuberance exerts a force on an end of the shifting part so that the shifting part is shifted to the other side of the capacity, allowing the rotating wheel to return to a start position.
  • Fig. 1 illustrates the finger prosthesis according to one embodiment of the present application.
  • Fig. 2 is a decomposition view for the finger prosthesis as shown in Fig. 1.
  • Fig. 3 illustrates the inner configurations of the joint according to one embodiment of the present application.
  • Fig. 4(a)-(e) illustrate the operation principle of the joint.
  • Fig. 5 illustrates flexion operation of the finger prosthesis according to one embodiment of the present application.
  • Fig. 6 illustrates six lockable intervals of the joint according to one embodiment of the present application. Detailed Description
  • Fig. 1 illustrates the finger prosthesis 100 according to one embodiment of the present application.
  • the finger prosthesis 100 comprises a ring 10 for attaching the prosthesis to a stump (not shown), and a tip 20 configured to simulate different functions of a finger.
  • a joint 30 coupled between the tip 20 and the ring 10.
  • the ring 10 has a non-invasive ring like structure to attach the prosthesis 100 to the stump of the metacarpal bone surrounding with muscles and soft tissue.
  • the ring 10 may be made of soft metal, for example sliver, that allows easy and fine adjustment with manual strength.
  • the tip 20 may comprise an posterior portion 201 and a anterior portion 202 opposite to the posterior portion 201.
  • the portions 201 and 202 may be made from silver metal and silicon, respectively.
  • silicon was used to form the posterior portion 201 of the tip, since it can be shaped easily by molding and is slightly deformable to maximize the contact area while holding object.
  • the anterior portion 202 of the tip was made of silver plate which simulates the nail function in real finger for fine motion.
  • the joint 30 may be connected to the ring 10 through a connector 40.
  • the connector 40 may also function to adjust the length of the finger prosthesis 100. That is, the more length the connector 40 has, the more length the finger prosthesis 100 will have.
  • the interlocking mechanism in the joint 30 may comprise a rebounded type progressive hinge lock which is bent easily in one direction and locked against an opposite force.
  • the rebounded type progressive hinge lock is often used in chairs, seats and sofas for adjusting the back support angle.
  • the rebounded type progressive hinge lock may comprise a shifting part with a first engaging end, and a rotating part with a second engaging end. The second engaging end is capable of being interlocked with the first engaging end by a plurality of intervals of the flexion period.
  • the rotating part may be further provided with a rebounding mechanism, which makes the rotating part to return to the start position smoothly at the end of the sixth intervals.
  • a more specific example of the interlocking mechanism is given as below in reference to Fig. 3.
  • Fig.3 illustrates the elements insides the joint 30 with the interlocking mechanism according to a specific example of the present application.
  • the interlocking mechanism may comprise a shifting part 301, a rotating wheel 302 and a supporting part 303.
  • a capacity 304 in the joint 30 for receiving the shifting part 301 there is provided a capacity 304 in the joint 30 for receiving the shifting part 301.
  • the shifting part 301 and the rotating wheel 302 may be interlocked by gears 3011 and 3012 at, for example, six intervals, and the shifting part is backed with the supporting part 303, which provides a spring-like nature that allows little displacement of the shifting part.
  • the supporting part 303 may be of a thin sheet, for example, a thin aluminum sheet.
  • the rotating wheel 302 is further provided with two protuberances 3013 and 3014, which cooperate with the other elements of the interlocking mechanism to function as the rebounding mechanism, which will be discussed below.
  • the shifting part 301 and the rotating wheel 302 may be interlocked by gears 3011 and 3012.
  • the connector 40 rotates according to the direction of arrow, which in turn makes the rotating wheel 302 to rotate in the same direction
  • the other side of the shifting part 301 is backed with the supporting part 303.
  • the protuberance 3013 of the rotating wheel 302 exerts force on the end of the shifting part 301 and then the shifting part 301 would be shifted to the other side of the capacity 304, allowing the rotating wheel 302 to return to the start position smoothly.
  • all moving parts in the joint may be made of stainless steel for longer duration while aluminum was chosen for other parts for weight reduction.
  • Fig. 5 illustrates the different flexion status of the prosthesis according to one embodiment of the present application.
  • Fig. 6 illustrates the relationship between each flexion status and the joint.
  • the joint starts working from zero flexion and then flexion is performed by assistance of another hand, with 15 degrees increment, until a 90-degree flexion is reached.
  • the joint is locked to prevent extension of finger. This makes the thumb opposition nature of human hand for amputee become possible.
  • the flexion angle exceeds 90-degree, it rebounds and returns to starting position.
  • the flexion is done by assistance of another hand or any rigid surface.
  • the shifting part and the rotating part gets locked by the gears to prevent extension, thus providing a rigid support for hand grip.
  • To reset the device to full extension just flex it to 90 degrees and it gets rebounded to the original position.
  • the finger prosthesis allows user to regain flexion and extension movement of finger.
  • the prosthesis can restore the opposition function of patient with multiple digit amputation. By applying enough prosthesis on the involved hand, it is possible for them to pick up large heavy object.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Transplantation (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

A finger prosthesis (100) is provided. The finger prosthesis (100) comprises a tip (20) for simulating different functions of a finger and a ring (10) for attaching the prosthesis to a stump. The finger prosthesis further comprises a joint (30) coupled between the tip (20) and the ring (10), wherein the joint (30) comprises an interlocking mechanism configured to allow the joint (30) to rotate at lockable intervals so as to lock the tip (20) into different positions during a flexion period of the finger prosthesis (100).

Description

FINGER PROSTHESIS
Cross Reference of Related Applications
[0001] This application claims the benefit of U.S. provisional patent application No. 61/499,695 filed on June 22, 2011, which is explicitly incorporated by reference in its entirety as part of this application.
Background
[0002] Hand function is very important to human's daily life. Finger loss leads to weakened hand function, medical burden, diminished working capability and inferior quality of life. "X-finger", the world's first active-function artificial finger, has been invented for patients to regain the finger function. Such finger allows users to perform flexion and extension actively. However, due to the completed structure, this kind of finger is expensive and is often not affordable to most people, especially to those low- income factory workers who lost their fingers due to occupational accidents. The current proposal aims to design an inexpensive artificial finger.
Summary
[0003] In one aspect of the present application, a finger prosthesis is provided. The finger prosthesis comprises a tip for simulating different functions of a finger and a ring for attaching the prosthesis to a stump. The finger prosthesis further comprises a joint coupled between the tip and the ring, wherein the joint comprises an interlocking mechanism configured to allow the joint to rotate at lockable intervals so as to lock the tip into different positions during a flexion period of the finger prosthesis.
[0004] In another aspect of the present application, there is provided a finger prosthesis comprising: a tip for simulating different functions of a finger; and a ring for attaching the prosthesis to a stump. The finger prosthesis further comprises a joint coupled between the tip and the ring, wherein the joint comprises a shifting part with a first engaging end; and a rotating wheel with a second engaging end, wherein the second engaging end is capable of being interlocked with the first engaging end by a plurality of intervals. [0005] According to one embodiment, the rotating part may be provided with a rebounding mechanism configured to make the rotating wheel to return to a start position at the end of the intervals.
[0006] In another aspect of the present application, there is provided a finger prosthesis comprising: a tip for simulating different functions of a finger; a ring for attaching the prosthesis to a stump; and a joint coupled between the tip and the ring. The joint comprises:
a shifting part with a first plurality of gears; and
a rotating wheel with a second plurality of gears, wherein the shifting part is capable of being interlocked with the rotating wheel through the first and second gears by a plurality of intervals;
a capacity for receiving the shifting part;
a support located in the capacity for supporting one side of the shifting part to provide a spring-like nature that allows little displacement of the shifting part;
wherein the rotating wheel is provided with a first protuberance and a second protuberance located two sides of the second gears, and wherein, during an interlocked stage, the shifting part is located with one side of the capacity, at the end of the intervals, the first protuberance exerts a force on an end of the shifting part so that the shifting part is shifted to the other side of the capacity, allowing the rotating wheel to return to a start position.
Brief description of Drawings
[0007] Fig. 1 illustrates the finger prosthesis according to one embodiment of the present application.
[0008] Fig. 2 is a decomposition view for the finger prosthesis as shown in Fig. 1.
[0009] Fig. 3 illustrates the inner configurations of the joint according to one embodiment of the present application.
[0010] Fig. 4(a)-(e) illustrate the operation principle of the joint.
[0011] Fig. 5 illustrates flexion operation of the finger prosthesis according to one embodiment of the present application.
[0012] Fig. 6 illustrates six lockable intervals of the joint according to one embodiment of the present application. Detailed Description
[0013] Fig. 1 illustrates the finger prosthesis 100 according to one embodiment of the present application. As shown, the finger prosthesis 100 comprises a ring 10 for attaching the prosthesis to a stump (not shown), and a tip 20 configured to simulate different functions of a finger. There is a joint 30 coupled between the tip 20 and the ring 10. Inside the joint 30, there is configured with an interlocking mechanism for allowing the joint to rotate at lockable intervals (for example, there may be six intervals) so as to lock the tip 20 into different positions during a flexion period of the finger prosthesis 100.
[0014] According to one embodiment, the ring 10 has a non-invasive ring like structure to attach the prosthesis 100 to the stump of the metacarpal bone surrounding with muscles and soft tissue. The ring 10 may be made of soft metal, for example sliver, that allows easy and fine adjustment with manual strength.
[0015] As shown in Fig. 2, the tip 20 may comprise an posterior portion 201 and a anterior portion 202 opposite to the posterior portion 201. The portions 201 and 202 may be made from silver metal and silicon, respectively. In order to better apply friction to the held object, silicon was used to form the posterior portion 201 of the tip, since it can be shaped easily by molding and is slightly deformable to maximize the contact area while holding object. The anterior portion 202 of the tip was made of silver plate which simulates the nail function in real finger for fine motion.
[0016] The joint 30 may be connected to the ring 10 through a connector 40. The connector 40 may also function to adjust the length of the finger prosthesis 100. That is, the more length the connector 40 has, the more length the finger prosthesis 100 will have.
[0017] In one embodiment, the interlocking mechanism in the joint 30 may comprise a rebounded type progressive hinge lock which is bent easily in one direction and locked against an opposite force. The rebounded type progressive hinge lock is often used in chairs, seats and sofas for adjusting the back support angle. The rebounded type progressive hinge lock may comprise a shifting part with a first engaging end, and a rotating part with a second engaging end. The second engaging end is capable of being interlocked with the first engaging end by a plurality of intervals of the flexion period. The rotating part may be further provided with a rebounding mechanism, which makes the rotating part to return to the start position smoothly at the end of the sixth intervals. A more specific example of the interlocking mechanism is given as below in reference to Fig. 3.
[0018] Fig.3 illustrates the elements insides the joint 30 with the interlocking mechanism according to a specific example of the present application. In this example, the interlocking mechanism may comprise a shifting part 301, a rotating wheel 302 and a supporting part 303.
[0019] As shown in Fig. 3, there is provided a capacity 304 in the joint 30 for receiving the shifting part 301. During the flexion period, the shifting part 301 and the rotating wheel 302 may be interlocked by gears 3011 and 3012 at, for example, six intervals, and the shifting part is backed with the supporting part 303, which provides a spring-like nature that allows little displacement of the shifting part. The supporting part 303 may be of a thin sheet, for example, a thin aluminum sheet.
[0020] In addition, the rotating wheel 302 is further provided with two protuberances 3013 and 3014, which cooperate with the other elements of the interlocking mechanism to function as the rebounding mechanism, which will be discussed below.
[0021] Referring to Fig 4 (a), the shifting part 301 and the rotating wheel 302 may be interlocked by gears 3011 and 3012. As the connector 40 rotates according to the direction of arrow, which in turn makes the rotating wheel 302 to rotate in the same direction, the other side of the shifting part 301 is backed with the supporting part 303. In the Figs. 4(c) and (d), at the end of the intervals, the protuberance 3013 of the rotating wheel 302 exerts force on the end of the shifting part 301 and then the shifting part 301would be shifted to the other side of the capacity 304, allowing the rotating wheel 302 to return to the start position smoothly. In Fig. 4 (e), as the rotating wheel 302 further rotates, the protuberance 3014 of the rotating wheel would push the shifting part 301 back to the "locking" position. In one embodiment, all moving parts in the joint may be made of stainless steel for longer duration while aluminum was chosen for other parts for weight reduction.
[0022] Fig. 5 illustrates the different flexion status of the prosthesis according to one embodiment of the present application. Fig. 6 illustrates the relationship between each flexion status and the joint. In this embodiment, there are six intervals during the flexion. As shown, the joint starts working from zero flexion and then flexion is performed by assistance of another hand, with 15 degrees increment, until a 90-degree flexion is reached. At each of the intervals, the joint is locked to prevent extension of finger. This makes the thumb opposition nature of human hand for amputee become possible. When the flexion angle exceeds 90-degree, it rebounds and returns to starting position. In addition, the flexion is done by assistance of another hand or any rigid surface. At each of the angles, the shifting part and the rotating part gets locked by the gears to prevent extension, thus providing a rigid support for hand grip. To reset the device to full extension, just flex it to 90 degrees and it gets rebounded to the original position.
[0023] The finger prosthesis allows user to regain flexion and extension movement of finger. The prosthesis can restore the opposition function of patient with multiple digit amputation. By applying enough prosthesis on the involved hand, it is possible for them to pick up large heavy object.
[0024]While the present application has been illustrated by the above description and embodiments or implementations, it is not intended to restrict or in any way limit the scope of the appended claims hereto.

Claims

What is claimed is:
1. A finger prosthesis comprising:
a tip for simulating different functions of a finger;
a ring for attaching the prosthesis to a stump; and
a joint coupled between the tip and the ring, wherein the joint comprises an interlocking mechanism configured to allow the joint to rotate at lockable intervals so as to lock the tip into different positions during a flexion period of the finger prosthesis.
2. A prosthesis of claim 1, wherein the interlocking mechanism comprises a rebounded type progressive hinge lock, which is capable of being bent in a first direction and locked against an force with a second direction, the second direction being substantively opposite to the first direction.
3. A prosthesis of claim 2, wherein the rebounded type progressive hinge lock comprises:
a shifting part with a first engaging end; and
a rotating part with a second engaging end, wherein the second engaging end is capable of being interlocked with the first engaging end by a plurality of intervals.
4. A prosthesis of claim 3, wherein each of the first and second engaging ends comprises a plurality of gears, and the second engaging end is capable of being interlocked with the first engaging end through the gears.
5. A prosthesis of claim 3, wherein the rotating part is provided with a rebounding mechanism configured to make the rotating part to return to a start position at the end of the intervals.
6. A prosthesis of claim 5, wherein rebounding mechanism comprises two protuberances on the rotating part.
7. A prosthesis of claim 3, wherein the joint comprises a capacity for receiving the shifting part.
8. A prosthesis of claim 7, wherein during an interlocked stage, the shifting part is located in one side of the capacity.
9. A prosthesis of claim 8, wherein, at the end of the intervals, the rebounding mechanism exerts a force on an end of the shifting part so that the shifting part is shifted to the other side of the capacity, allowing the rotating part to return to a start position.
10. A prosthesis of claim 7, wherein there is provided a support part in the capacity for supporting one side of the shifting part to provide a spring-like nature that allows little displacement of the shifting part.
11. A prosthesis of claim 10, wherein the support part comprises a sheet-like shape.
12. A prosthesis of claim 3, wherein the shifting part and rotating part are configured to cooperate to make the two parts interlocked by 6 intervals.
13. A prosthesis of claim 1, wherein the ring comprises a non-invasive ring like structure to attach the prosthesis to the stump.
14. A prosthesis of claim 1, wherein the tip comprises an anterior portion and a posterior portion opposite to the anterior portion, the anterior portion and the posterior portion are made from silver metal and silicon, respectively, in order to simulate different functions of the finger.
15. A finger prosthesis comprising:
a tip for simulating different functions of a finger;
a ring for attaching the prosthesis to a stump; and
a joint coupled between the tip and the ring, wherein the joint comprises:
a shifting part with a first engaging end; and
a rotating wheel with a second engaging end, wherein the second engaging end is capable of being interlocked with the first engaging end by a plurality of intervals.
16. A prosthesis of claim 15, wherein the rotating wheel is provided with a rebounding mechanism configured to make the rotating wheel to return to a start position at the end of the intervals.
17. A finger prosthesis comprising:
a tip for simulating different functions of a finger;
a ring for attaching the prosthesis to a stump; and
a joint coupled between the tip and the ring, wherein the joint comprises:
a shifting part with a first plurality of gears; and
a rotating wheel with a second plurality of gears, wherein the shifting part is capable of being interlocked with the rotating wheel through the first and second gears by a plurality of intervals;
a capacity for receiving the shifting part;
a support located in the capacity for supporting one side of the shifting part to provide a spring-like nature that allows little displacement of the shifting part;
wherein the rotating wheel is provided with a first protuberance and a second protuberance located two sides of the second gears,
wherein, during an interlocked stage, the shifting part is located in one side of the capacity, at the end of the plurality of intervals, the first protuberance exerts a force on an end of the shifting part so that the shifting part is shifted to the other side of the capacity, allowing the rotating wheel to return to a start position.
PCT/CN2012/077350 2011-06-22 2012-06-21 Finger prosthesis Ceased WO2012175038A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161499695P 2011-06-22 2011-06-22
US61/499,695 2011-06-22

Publications (1)

Publication Number Publication Date
WO2012175038A1 true WO2012175038A1 (en) 2012-12-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/077350 Ceased WO2012175038A1 (en) 2011-06-22 2012-06-21 Finger prosthesis

Country Status (2)

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US (1) US20120330432A1 (en)
WO (1) WO2012175038A1 (en)

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CN103552085A (en) * 2013-09-23 2014-02-05 中国科学院电工研究所 Mechanical finger without exogenetic force

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US8337568B2 (en) 2010-07-14 2012-12-25 Charles Colin Macduff Mechanical prosthetic finger device
US9370430B2 (en) 2013-03-29 2016-06-21 RCM Enterprise, LLC Bio-mechanical prosthetic full finger
US20140316530A1 (en) * 2013-04-23 2014-10-23 Bespa, Inc Metatarsalphalangeal Joint Apprartus and Method
CA3158806C (en) * 2015-02-03 2025-10-07 RCM Enterprise, LLC Bio-mechanical prosthetic finger with h-shaped rocker
US9707101B2 (en) 2015-02-03 2017-07-18 Rcm Enterprise Llc Bio-mechanical prosthetic finger with Y-shaped rocker
WO2016126739A1 (en) 2015-02-03 2016-08-11 RCM Enterprise, LLC Biomechanical finger brace assembly
CN104825259B (en) * 2015-04-30 2016-08-24 大连理工大学 A kind of functional finger prosthesis
US9629731B2 (en) 2015-05-15 2017-04-25 RCM Enterprise, LLC Bidirectional biomechanical prosthetic full finger configured for abduction and adduction with MCP pivot and multiple-finger ring
EP3785675A3 (en) 2015-05-15 2021-05-12 RCM Enterprise, LLC Bidirectional biomechanical prosthetic full finger configured for abduction and adduction with mcp pivot
WO2017035387A1 (en) * 2015-08-25 2017-03-02 RCM Enterprise, LLC Bio-mechanical prosthetic thumb
JP7009072B2 (en) * 2017-03-30 2022-01-25 ダブル技研株式会社 Finger mechanism and humanoid hand incorporating this finger mechanism
WO2019032478A1 (en) * 2017-08-06 2019-02-14 Dbm, Llc (D/B/A Limb Lab) Universal digit
US10973660B2 (en) 2017-12-15 2021-04-13 Touch Bionics Limited Powered prosthetic thumb
JP2020074991A (en) * 2018-11-08 2020-05-21 ディドリック，ダニエル Locking mechanism artificial finger
US10905570B2 (en) * 2018-11-19 2021-02-02 The Regents Of The University Of Colorado, A Body Corporate Prosthetic partial fingers
EP4403142B1 (en) 2019-04-10 2025-06-25 Touch Bionics Limited Prosthetic digit with articulating links
WO2021053557A1 (en) * 2019-09-18 2021-03-25 Touch Bionics Limited Prosthetic digits and actuators
US11931270B2 (en) 2019-11-15 2024-03-19 Touch Bionics Limited Prosthetic digit actuator
US12011376B2 (en) 2021-02-10 2024-06-18 Point Designs, LLC Prosthetic thumb device
CN112914798A (en) * 2021-02-24 2021-06-08 山东格橹特康复器具有限公司 Functional bionic finger
USD1097156S1 (en) 2025-04-02 2025-10-07 Steven Rossi Fingertip prosthesis

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US2598593A (en) * 1948-09-30 1952-05-27 Ibm Polycentric articulated finger for artificial hands
CN1832711A (en) * 2003-08-21 2006-09-13 丹尼尔·帝德里克 Articulated prosthetic finger assembly
CN101147707A (en) * 2006-09-21 2008-03-26 李明浩 Artificial finger
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Publication number Priority date Publication date Assignee Title
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