US3606316A - Finger and hand muscle exercise device - Google Patents

Finger and hand muscle exercise device Download PDF

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Publication number
US3606316A
US3606316A US828515A US3606316DA US3606316A US 3606316 A US3606316 A US 3606316A US 828515 A US828515 A US 828515A US 3606316D A US3606316D A US 3606316DA US 3606316 A US3606316 A US 3606316A
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fingers
walls
finger
support
exercise
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US828515A
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English (en)
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Semyon E Krewer
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
    • A63B23/16—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles for hands or fingers

Definitions

  • a support forms a rest for the palmar side of the proximal phalanx in the region of the bone insertion of the intrinsic muscle and the metacarpal-phalangal joint of the second to fifth fingers to rest thereon; a plurality of walls, forming slots for the fingers therebetween in the order of a width of a finger, extend in a direction generally perpendicularly away from said support adapted to confine and separate the fingers therebetween, so that the fingers can fan out from the support.
  • the walls are sufficiently rigid to act as a resistance for isometric exercise of finger abduction and adduction thereagainst with transverse holes therethrough for the insertion of stop pins against which the fingers may be exercised, and around which rubber bands may be looped for additional exercising of finger and hand muscles.
  • the support may be a molded plastic structure, integral with the walls, or it may be a cushioned support rod for the proximal phalanx, extending between the walls.
  • the present invention relates to a hand muscle exercising device and particularly to an exercising device for arthritic patients to exercise finger and hand muscles and strengthen the intrinsic and extrinsic flexors, and extensors, and counteract intrinsic muscle contractures, without straining any weakened ligaments, or joint structures, and which inhibit movements detrimental to the arthritic hand.
  • a support body having a support region on which the palmar side of the proximal phalanx is supported in the area of the bone insertion of the intrinsic muscle and the metacarpal-phalangal joint of the second to the fifth fingers.
  • the point of support provided in thus not at the wrist, but adjacent to the individual fingers.
  • a plurality of walls extend from the support region in a direction away from the support region.
  • the support region will be linear and may be straight or slightly bowed, and the walls will extend therefrom generally perpendicularly.
  • the walls define, between themselves, a plurality of slots which may be parallel or fan out, so as to permit the fingers to exercise while fanned out.
  • the body is a molding of plastic, rubber, or the like, with walls extending therefrom which thicken towards their end to formslots which fan out.
  • the Walls themselves are sufficiently strong to provide a counter-resistance for isometric exercise; a projecting stop is provided on the side to form a counter-resistance for isometric exercise of the thumb.
  • the body is provided with attachment means for rubber bands.
  • flexing muscles can be strengthened by squeezing around the body, between the slots similar to a rubber ball; contrary to grasping a ball, however, the metacarpal joint can be supported to be essentially non-flexed, and the fingers fanned out.
  • Extensor muscles can be strengthened by attachment of a rubber band and pulling thereagainst, with lateral muscle exercise being possible by isometric exercise against the walls or the projecting stop.
  • Transverse bearing rods can be passed through aligned openings in the walls, against which isometric exercises can be carried out, both by pressing down thereagainst, or lifting up thereagainst, or looping rubber hands around the rods to be pulled up by the fingers.
  • the Walls are parallel plates, with the space between the plates for the index finger being somewhat larger and preferably an insert therein to force the index finger laterally away from a direction perpendicular to the hand and to ensure a fanned-out position.
  • the plates are formed with aligned holes through which the bearing rods can be inserted.
  • the support preferably is formed of a similar rod, suitable padded to have the above referred to region of the fingers rest thereon.
  • FIG. 1 is a generally perspective illustrative view of an arthritically deformed left hand
  • FIG. 2 is a perspective view of one embodiment of the exercising device of the present invention.
  • FIG. 3 is a perspective view from the other side of FIG. 2, showing the device in use with the right hand;
  • FIG. 4 is a view similar to FIG. 2, to a reduced scale and with features omitted showing a different exercise
  • FIG. 5 is a view of the device of FIG. 2 taken in direction of arrow V, in use;
  • FIG. 6 is a front view in cabinet projection illustrating use, simultaneously, by two hands in one form
  • FIG. 7 is a view similar to FIG. 4 illustrating a different form of exercise
  • FIG. 8 is a front elevation view illustrating a ditferent exercise
  • FIG. 9 is a front elevational view illustrating use with two hands.
  • FIG. 10 is a top view of another embodiment of the present invention.
  • FIG. 11 is a top view of the device of FIG. 10, with parts broken away, illustrating use of the device;
  • FIG. 12 is a bottom, reverse view of the device of FIG. 10, in use.
  • FIG. 1 shows, in exaggerated form, an arthritically deformed hand.
  • the metacarpal bones of the hand extend up to the metacarpal (MP) joint.
  • MP metacarpal
  • Each finger then has a first region, termed the proximal phalanx, followed by the proximal interphalangal (PIP) joint; the last finger joint is the distal interphalangal (DIP) joint.
  • Movement of a finger in the direction of the arrows AB and AD, respectively, is referred to as abduction and adduction, respectively.
  • the dotted zone S is termed the root of the finger and is the region of bone insertion of the intrinsic muscles.
  • the side of the palm of the hand is referred to as the palmar side.
  • the device 10 is an exercising device, with safeguards to prevent acceleration of deformities while using the device.
  • Device 10 comprises a group of plates 11, 12, 13, 14, 15, which are parallel and define slots or spaces therebetween. The plates are held in position by means of holding pins or screws 17, 18, 19, spaced from each other as desired by spacers and 21; spacer 21 is somewhat larger than spacers 20, sothat the slot between walls 11 and 12, and designed for use by the index finger, will be wider than the slots between the remaining walls and intended for use by the other fingers.
  • a pair of cross pins 25, 26 extend transversely of the plates, so that plates 11-15 will extend perpendicularly to pins 25, 26; deviations from a right angle are permissible and walls which extend generally perpendicularly, and fan out to provide fanned-out slots, are also suitable.
  • Pins 25, 26 are cushioned by cushioning members 27, 28, which may, for example, be foam rubber, polyurethane foam, or the like.
  • the walls are all formed with holes 22 of predetermined alignment, for example a straight line, through which cross bearing pins 29 may be passed.
  • the cushions, 27, 28 match in width the spacer members 20, 21, cushion 28 again being wider than cushion 27.
  • the bearing pins 29 are readily removable, and rubber bands 30 can be looped thereover against which the fingers may be exercised.
  • the device of FIGS. 2 to 9 is designed to rest on a table top 36 (FIG. 8). Between plates 11 and 12, a bearing or spacer member can be arranged, either secured to plate 12, or loose to be removable. The purpose of this member is to force the second or index finger into a fan-shaped alignment.
  • FIG. 3 the proximal phalanx of the fingers is supported on the cushioned cross pins 26.
  • the palm rests against the edges 16 of the plates 11-15 to keep the tendons aligned over the metacarpal joints.
  • One form of exercise is merely to loop the fingers around the cushioned support pin 26 and squeeze.
  • Isometric exercise of the thumb, pressing upwardly against a cross bearing pin 29 and inserted in one of the lower holes can be done simultaneously. Alignment of the index finger that the tendon of the fingers passes over the joint in an essentially straight line, and contra to the showing of FIG. 1, is assisted by bearing member 35 (FIG.
  • the hand is prevented from sliding deeply between the walls 1115 by edges 16 on the walls, which will dig into the skin between the fingers, and effectively prevent a strong grasp (FIG. 3) or an excessive pull (FIG. 4) which might be more damaging to the injured hand than therapeutically helpful.
  • Both hands can be exercised at the same time (see FIG. 6) where isometric exercise of the thumb against a projecting end of pins 25, 26 is illustrated, one thumb being pressed upward, the other one pressing down.
  • the unit is preferably made of plastic, for example Lucite plates, and the pins likewise of plastic, Plexiglas, or the like, so as to be completely immersible, for example in a hot bath.
  • FIG. 7 illustrates a finger extensor exercise, in which rubber bands 30 are looped around a cross pin 29.
  • the various holes 22 have been omitted from the showing of FIGS. 3, 4 and 6 to 9, to simplify the drawing.
  • FIG. 8 illustrates the device placed on a table top 36, in which isometric exercises can bedone against a pin 29 located in an upper hole, with force thereagainst as indicated by the arrow; a gripping exercise can also be carried out with force again being applied as indicated by the arrows.
  • the palm rests against edges 16 of the plates.
  • FIG. 9 illustrates a combined exercise by both hands, in which the right hand carries out a squeezing, or pinching exercise of all fingers with the palm resting against edges 16 so that the metacarpal joint is extended. Simultaneously, the fingers of the left hand exercise against a cross pin 29 above the cushioned pin 25, for isometric exercise of the region between the second and third finger joint, the metacarpal-phalangal joint being supported on cushioned pin 25.
  • cross pins against which the fingers bear may be made of metal, with plastic or nylon end bushings or tips; cross pins 29 may, if desired, likewise be cushioned, or cushioning sleeves provided to be slipped over the pins as they are inserted through holes 22 (FIG. 2).
  • the device 10 is form-stable, readily supported on a table 36 (FIG. 8) or against the body, and held in position by simultaneous exercise of both hands (see FIGS. 6 and 9).
  • FIGS. 10 to 12 illustrate a different form of the invention, in which part of the hand is supported beneath the wrist.
  • Device includes a body 56, which may be of molded rubber, molded foamed plastic, or the like. It has walls 51, 52, 53, 54, extending therefrom, the walls being sufliciently thick and shaped to leave slots 61, 64 therebetween, which fan out from the base part of the body.
  • the body 56 is preferably slightly raised as illustrated at 56', to lie smoothly in the hand and to be stable in use.
  • the entire device is held over the hand by a strap 57, secured at corners in a suitable manner, for example by plastic welding or bonding at 58; the strap may be of flexible transparent plastic, so that the entire device is immersible and easily cleaned.
  • the device 50 is further formed with a bearing stop 59, against which the thumb can be placed for isometric exercise, to bear down thereover, or up thereagainst. Rubber bands 60, 60' can be secured to an attachment pin 67, at the underside of the device (see FIG. 12) to enable stretching and extension exercises by the fingers.
  • the underside of the body of device 50 is preferably formed with a depression 65, to permit the thumb to lie therein, not only to hold the entire body 56 but also to act as a counter bearing point for isometric exercises of thumb flexing.
  • the walls 51-55 extend generally parallel and in a direction generally transversely to the remainder of the body 56.
  • the sides of the walls are thickened towards their ends so that slots 61, 64 will extend fan-shaped, again to force the fingers of the hand into a fan-shaped configuration.
  • the walls themselves also extend some what above and below the remainder of the body portion, so that the body 56 will project sufiiciently between the walls to support the region of the fingers beyond (in the direction to the tip) the metacarpal-phalangal joint with the tendon in proper alignment.
  • the extent to which the hand, itself, can slip over and into the device is limited by the strap 57 and the reach of the thumb around the body 56, as seen in FIG. 11.
  • the sides of the walls defining the slots may be straight, as shown, or arched, or oblique and converging to facilitate isometric exercise.
  • the device 50 of FIGS. to 12 can be made small, and lightweight, readily portable to be carried along so that exercises can be carried out during spare time, or when not manually occupied. Any number of rubber bands 60, 60" can be secured to attachment 67; both devices 10 (FIGS. 2 to 9) and 50 (FIGS. 10 to 12) may be made in various sizes, as desired.
  • the width of the slots, that is the separation between the inner sides of the walls is preferably in the order of about 2 cm., possibly slightly larger, so as to accommodate approximately the width of the finger.
  • the walls 51 to 55 should be sulficiently rigid and strong to resist lateral forces brought to bear thereagainst by lateral pressure of the fingers during isometric exercises; they may have holes 62 (one being shown in FIG.
  • the termination of body 56, between the walls may be along a straight, or a bowed line; if bowed, holes 62 are preferably located aligned along a similarly bowed line 63 and the pins passing therethrough (for exercising extensor muscles) shaped to fit.
  • the sizes of the devices, and the sizes of the slots between walls may be arranged suitably for different sizes of hands, for example for large, small, mens and womens sizes.
  • Hand muscle exercising device comprising:
  • a support contacting simultaneously both the palmar side of the proximal phalanx of the second to fifth fingers in the region of the bone insertion of the intrinsic muscle and extending to the proximal interphalangal joint of the second to fifth fingers;
  • slots being of a Width in the order of the width of a finger
  • the walls adjacent the slots being of a height, rigidity
  • said walls locating the proximal interphalangal joint adjacent the end of the support and the proximal phalanx in said slots, the support permitting the fingers from the proximal interphalangal joint to curl about its end.
  • said support is a unitary molded body having a support zone for the palmar side of the proximal phalanx in said region of the bone insertion of the intrinsic muscle and the metacarpal-phalangal joint;
  • said walls are a plurality of fan-shaped extensions projecting from said body, said slots between said walls fanning out.
  • Device including a groove molded in said body in the region thereof remote from said support region, said groove accommodating at least part of the thumb for isometric exercise of thumb muscles.
  • said body includes smooth bearing extensions in said slots and extending a fraction of the length of said slots and having a thickness less than the height of said walls, said bearing extensions being adapted to be gripped by flexing of the proximal and distal interphalangal joints.
  • Device including a holding strap adapted to pass over the wrist of the hand to be exercised and secured to said support region adjacent both lateral sides thereof.
  • Device including a projecting stop element extending from a side of said body to provide a counter resistance for isometric exercise of the thumb.
  • Device according to claim 1 including means for the attachment of pendant rubber bands thereto.
  • Hand muscle exercising device comprising:
  • a support adapted to have the palmar side of the proximal phalanx in the region of the bone insertion of the intrinsic muscle and the metacarpal-phalangal joint of the second to fifth fingers rest thereon;
  • a plurality of walls comprising a plurality of essentially parallel plates extending in a direction generally perpendicularly from a line interconnecting said support regions and defining therebetween a plurality of slots, said slots extending between said plates and being adapted to confine and separate the fingers therebetween, said slots being of a width in the order of the width of a finger and the walls being of a rigidity sufficient to act as resistance for isometric exercise of finger abduction and adduction, said support comprising a connecting element extending essentially transversely of said plates and interconnecting said plates in spaced, essentially parallel relationship.
  • transverse connecting rods are provided to removably fit into said holes, said rods forming bearing points for the fingers.
  • Device according to claim 12 including pendant rubber bands looped over said rods to provide resilient counter-resistance means during exercise of the fingers.
  • Device including a thickening element located in contact with said next adjacent plate and providing a bearing surface for isometric exercise of adduction of the index finger.
  • interconnecting elements holding said plates in spaced, essentially parallel position, at least one of said interconnecting elements forming said support.
  • transverse connecting rods are provided removably fitting into said holes, said rods forming bearing points for the fingers.
  • said interconnecting element is located a predetermined distance above said base region and spaced adjacent the edges of said plates.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Prostheses (AREA)
  • Finger-Pressure Massage (AREA)
US828515A 1969-05-28 1969-05-28 Finger and hand muscle exercise device Expired - Lifetime US3606316A (en)

Applications Claiming Priority (1)

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US82851569A 1969-05-28 1969-05-28

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US3606316A true US3606316A (en) 1971-09-20

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US828515A Expired - Lifetime US3606316A (en) 1969-05-28 1969-05-28 Finger and hand muscle exercise device

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US (1) US3606316A (de)
CH (1) CH529568A (de)
DE (1) DE2025691A1 (de)
FR (1) FR2048776A5 (de)
GB (1) GB1317822A (de)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747593A (en) * 1972-06-12 1973-07-24 W Taylor Hand exerciser
US4220327A (en) * 1978-10-17 1980-09-02 Herbowy Roger W Hand-wrist exerciser
US4709916A (en) * 1986-03-10 1987-12-01 Dean Clark Bowlers grip exerciser
US4988091A (en) * 1990-07-27 1991-01-29 Schaefer Michael J Elbow and forearm rehabilitation device
US5046725A (en) * 1988-05-12 1991-09-10 Brennan Dean R Variable weight grip exerciser
US5299457A (en) * 1992-07-13 1994-04-05 Donald Pang Precision grip meter
US5407410A (en) * 1993-06-16 1995-04-18 Heck; Steven H. Hand-held aid for human locomotion
US5447490A (en) * 1992-12-17 1995-09-05 Smith & Nephew Rolyan, Inc. Finger rehabilitation system
US5573479A (en) * 1994-08-15 1996-11-12 Harris; Clyde T. Finger exercising apparatus
US5702354A (en) * 1993-12-02 1997-12-30 Active Motion Systems, Llc Toe joint mobilization apparatus
US5820522A (en) * 1997-04-23 1998-10-13 Taylor-Nathan Co., Inc. Orthopaedic gripping device
WO1998052650A1 (en) * 1997-05-20 1998-11-26 Macdonald John R A finger exercise and rehabilitation device
US6036621A (en) * 1997-09-11 2000-03-14 Hancock; Ted W. Digit gym for the exercise of hand and finger muscles
US6099438A (en) * 1998-04-22 2000-08-08 Dawson; Anthony Wrist and hand exerciser
US6213918B1 (en) * 1998-11-16 2001-04-10 Patent/Marketing Concepts, L.L.C. Method and apparatus for finger, hand and wrist therapy
US6482168B1 (en) * 2001-07-20 2002-11-19 Russell A. Betcher Upper extremity hand orthosis and method of use
US20050064995A1 (en) * 2002-05-07 2005-03-24 Yasuhiro Shitan Exercise support system
US20060038455A1 (en) * 2004-08-23 2006-02-23 Pavwoski Robert A Finger exercise apparatus
US20060178247A1 (en) * 2005-02-07 2006-08-10 Yao-Yu Liu Structure finger strengthening device
US20070060448A1 (en) * 2005-09-15 2007-03-15 Robert Silagy Exercise device
US20080300112A1 (en) * 2007-06-01 2008-12-04 Gene Crout Finger exerciser
US20100130336A1 (en) * 2008-11-25 2010-05-27 Mcsorley Tyrone G Neuromuscular Training Apparatus and Method of Use
US7935026B2 (en) 2008-11-25 2011-05-03 Mcsorley Tyrone G Extremity therapy apparatus
US8092411B2 (en) 2005-01-07 2012-01-10 Betcher Russell A Hand held orthosis having a flexible enclosure and method of utilization
US20120190515A1 (en) * 2007-03-07 2012-07-26 James Anthony Barry Limb and limb extremity exercise device
USD676310S1 (en) * 2012-06-27 2013-02-19 Steve J. Lowrance Strap extension device
USD676736S1 (en) * 2012-05-12 2013-02-26 Elliott Goldberg Hook
US20130260970A1 (en) * 2012-03-27 2013-10-03 Stan L. Moskowich Multifunction push up apparatus
US20130303336A1 (en) * 2012-05-12 2013-11-14 Elliott Goldberg Exercise devices, guide/hook devices, and methods of making and using same
US20180200556A1 (en) * 2017-01-17 2018-07-19 Jason Dinkins Collapsible hand exercise assembly
CN113456424A (zh) * 2021-07-08 2021-10-01 吴浩然 一种穿戴式医疗康复用手指训练装置
US12453892B1 (en) 2023-06-15 2025-10-28 Good Morning Sunshine, LLC Finger exercise device

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747593A (en) * 1972-06-12 1973-07-24 W Taylor Hand exerciser
US4220327A (en) * 1978-10-17 1980-09-02 Herbowy Roger W Hand-wrist exerciser
US4709916A (en) * 1986-03-10 1987-12-01 Dean Clark Bowlers grip exerciser
US5046725A (en) * 1988-05-12 1991-09-10 Brennan Dean R Variable weight grip exerciser
US4988091A (en) * 1990-07-27 1991-01-29 Schaefer Michael J Elbow and forearm rehabilitation device
US5299457A (en) * 1992-07-13 1994-04-05 Donald Pang Precision grip meter
US5447490A (en) * 1992-12-17 1995-09-05 Smith & Nephew Rolyan, Inc. Finger rehabilitation system
US5407410A (en) * 1993-06-16 1995-04-18 Heck; Steven H. Hand-held aid for human locomotion
US5702354A (en) * 1993-12-02 1997-12-30 Active Motion Systems, Llc Toe joint mobilization apparatus
US5573479A (en) * 1994-08-15 1996-11-12 Harris; Clyde T. Finger exercising apparatus
US5820522A (en) * 1997-04-23 1998-10-13 Taylor-Nathan Co., Inc. Orthopaedic gripping device
WO1998052650A1 (en) * 1997-05-20 1998-11-26 Macdonald John R A finger exercise and rehabilitation device
US6036621A (en) * 1997-09-11 2000-03-14 Hancock; Ted W. Digit gym for the exercise of hand and finger muscles
US6099438A (en) * 1998-04-22 2000-08-08 Dawson; Anthony Wrist and hand exerciser
US6213918B1 (en) * 1998-11-16 2001-04-10 Patent/Marketing Concepts, L.L.C. Method and apparatus for finger, hand and wrist therapy
US6482168B1 (en) * 2001-07-20 2002-11-19 Russell A. Betcher Upper extremity hand orthosis and method of use
US20050064995A1 (en) * 2002-05-07 2005-03-24 Yasuhiro Shitan Exercise support system
US20060038455A1 (en) * 2004-08-23 2006-02-23 Pavwoski Robert A Finger exercise apparatus
US8394045B2 (en) 2005-01-07 2013-03-12 Russell A. Betcher Hand held orthosis having a flexible enclosure and method of utilization
US8092411B2 (en) 2005-01-07 2012-01-10 Betcher Russell A Hand held orthosis having a flexible enclosure and method of utilization
US7160228B2 (en) * 2005-02-07 2007-01-09 Yao-Yu Liu Structure finger strengthening device
US20060178247A1 (en) * 2005-02-07 2006-08-10 Yao-Yu Liu Structure finger strengthening device
US20070060448A1 (en) * 2005-09-15 2007-03-15 Robert Silagy Exercise device
US7381156B2 (en) * 2005-09-15 2008-06-03 Robert Silagy Exercise device
US20120190515A1 (en) * 2007-03-07 2012-07-26 James Anthony Barry Limb and limb extremity exercise device
US9220941B2 (en) * 2007-03-07 2015-12-29 James Anthony Barry Limb and limb extremity exercise device
US20080300112A1 (en) * 2007-06-01 2008-12-04 Gene Crout Finger exerciser
US7887471B2 (en) 2008-11-25 2011-02-15 Mcsorley Tyrone G Neuromuscular training apparatus and method of use
US7935026B2 (en) 2008-11-25 2011-05-03 Mcsorley Tyrone G Extremity therapy apparatus
US20100130336A1 (en) * 2008-11-25 2010-05-27 Mcsorley Tyrone G Neuromuscular Training Apparatus and Method of Use
US20130260970A1 (en) * 2012-03-27 2013-10-03 Stan L. Moskowich Multifunction push up apparatus
US20130303336A1 (en) * 2012-05-12 2013-11-14 Elliott Goldberg Exercise devices, guide/hook devices, and methods of making and using same
US9174083B2 (en) * 2012-05-12 2015-11-03 Elliott Goldberg Exercise devices, guide/hook devices, and methods of making and using same
USD676736S1 (en) * 2012-05-12 2013-02-26 Elliott Goldberg Hook
US9339690B1 (en) 2012-05-12 2016-05-17 Elliott Goldberg Exercise devices, guide/hook devices, and methods of making and using same
USD676310S1 (en) * 2012-06-27 2013-02-19 Steve J. Lowrance Strap extension device
US20180200556A1 (en) * 2017-01-17 2018-07-19 Jason Dinkins Collapsible hand exercise assembly
US10828525B2 (en) * 2017-01-17 2020-11-10 Jason Dinkins Collapsible hand exercise assembly
CN113456424A (zh) * 2021-07-08 2021-10-01 吴浩然 一种穿戴式医疗康复用手指训练装置
CN113456424B (zh) * 2021-07-08 2023-11-10 青岛市胶州中心医院 一种穿戴式医疗康复用手指训练装置
US12453892B1 (en) 2023-06-15 2025-10-28 Good Morning Sunshine, LLC Finger exercise device

Also Published As

Publication number Publication date
FR2048776A5 (de) 1971-03-19
GB1317822A (en) 1973-05-23
CH529568A (de) 1972-10-31
DE2025691A1 (de) 1970-12-17

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