Hand splint for wrist support with optional support of MP joints and thumb and IP finger assists

• US 4,862,877 A
• Filed: 11/18/1987
• Issued: 09/05/1989
• Est. Priority Date: 11/18/1987
• Status: Expired due to Term

• Current Assignee: LMB Hand Rehab Products, Inc.
• Original Assignee: LMB Hand Rehab Products, Inc.
• Inventors: Barber, Lois M.
• Primary Examiner(s): Hafer, Robert A.
• Assistant Examiner(s): ROONEY, KEVIN
• Application Number:
  US07/124,986
• Time in Patent Office: 657 Days
• Field of Search: 272/67, 272/68, 128/85, 128/87 R, 128/87 A, 128/89 R, 128/77, 2/DIG. 6
• US Class Current: 602/22
• CPC Class Codes: A61F 5/05866 for wrists, hands, fingers or thumbs

Abstract

A hand splint which leaves the volar wrist free and which can be used alone or as a foundation splint for the attachment of various permanent and removable hand and finger corrective devices. The splint includes a manually bendable support medium having a substantially C-shape including a palmar piece which fits into the palmar arch of the hand, a proximal dorsal forearm piece adapted to contact the dorsal wrist and at least a portion of the dorsal forearm, and a dorsal hand piece extending between the palmar piece and the proximal dorsal forearm piece. Adjustable tension means is provided on the dorsal side of the wrist. Detachable thumb, finger and metacarpophalangeal support as well as an interphalangeal assist are provided separately and in combination. A novel hinge and adjustable strap attachment means are also provided.

Claims

1. A hand splint which does not contact the volar wrist and which can be used as a foundation for the attachment of various permanent and removable hand and finger corrective devices comprising:

a manually bendable support framework with a pliant cushioning material enclosing at least a major portion of said framework;

said splint having an ulnar and a radial side corresponding to the contact of the splint with a forearm and comprising as major pieces;

a palmar piece adapted to extend under and across the palmar arch of the hand;

a proximal dorsal forearm piece adapted to contact the dorsal wrist and at least a portion of the dorsal forearm;

a dorsal hand piece extending between said palmar piece and said proximal dorsal forearm piece and adapted to contact the radial side of the hand and forearm;

said splint having a substantially "C" shape;

the top of the "C" including the palmar piece;

the back of the "C" adapted to extend along the radial side of the arm and including the dorsal hand piece;

the base of the "C" forming the proximal dorsal forearm piece and including a portion of the back of the "C" forming a radial extension adapted to extend along the radial side of the arm, a transverse extension adapted to extend across the dorsal forearm, and an ulnar extension adapted to extend along the ulnar side of the arm toward the dorsal wrist;

means for holding said major pieces together;

securement means for securing said splint to a hand and forearm without contacting the volar wrist; and

,

means to provide adjustable tension between said proximal dorsal forearm piece and said ulnar extension and adapted to contact the dorsal side of the wrist.

2. A splint as claimed in claim 1 wherein:

said framework is formed of a single length of malleable wire;

and said means to provide adjustable tension between said dorsal forearm and said ulnar extension which is adapted to contact the dorsal side of the wrist comprises an adjustable dorsal strap attached between said radial and ulnar extensions.

3. A splint as claimed in claim 2 wherein said securement means comprises:

adjustable strap means extending ventrally across the proximal end of said proximal forearm piece and secured between said radial and ulnar extensions; and

,

adjustable strap means secured to said palmar piece and adapted to extend diagonally across the dorsal side of a hand from said radial side to said ulnar side and secured to said dorsal hand piece.

4. A splint as claimed in claim 3 wherein:

said strap means are comprised of an elastic strap;

at least one area having a plurality of small hooks adapted to engage brushed material adhered to at least one of said strap and said palmar piece, dorsal hand piece, and proximal piece; and

,

at least one area of brushed material adapted to engage a plurality of small hooks adhered to at least one of said strap and said palmar piece, dorsal hand piece, and proximal piece;

and wherein,

said palmar piece strap means extends under said dorsal hand piece prior to securement thereto to pull the dorsal hand piece slightly away from contact with the hand.

5. A splint as claimed in claim 3 wherein said strap means further comprises:

a first lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said first hinge being attached to the distal end of said palmar piece;

a second lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said second hinge being attached to the proximal dorsal forearm piece adapted for securing said splint around the ventral forearm;

a third lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said third hinge being attached to the proximal forearm piece and adapted to contact the dorsal wrist area and to provide adjustable tension with said strap means on the dorsal side of the wrist.

6. A splint as claimed in claim 5 wherein:

each said hinge includes an inner side adapted to contact the hand or forearm and an outer side facing said inner side;

any part of said malleable wire framework which is enclosed within said hinges is emplaced within the outer side of the hinge.

7. A splint as claimed in claim 1 further comprising:

a removable thumb support piece attached to said support framework.

8. A splint as claimed in claim 1 further comprising:

a thumb support piece attached to said support framework which comprises a malleable length of wire having two major sections, one section of which is adapted to be substantially aligned with the longitudinal axis of the thumb and another section of which is adapted to be substantially aligned with the thenar eminence;

a malleable metal strip adapted to surround the distal end of the thumb which is secured to said major thumb support sections; and

,

a pliant cushioning material enclosing at least a major portion of said thumb support framework.

9. A splint as claimed in claim 1 further comprising:

a volar MP joint support attached to said support framework.

10. A splint as claimed in claim 9 wherein:

said MP joint support is formed as a transverse extension of said palmar piece;

said MP joint support is at least partially enclosed by a pliant cushioning material, and further comprising;

adjustable dorsal strap means for holding said MP joint support into contact with a hand.

11. A splint as claimed in claim 10 further comprising:

a removable thumb support.

12. A splint as claimed in claim 11 wherein said removable thumb support further comprises:

a length of malleable wire adapted to provide support to the thumb and including an attached strip of malleable metal which is bent into a generally circular configuration adapted to support the distal end of the thumb;

a pliant cushioning material enclosing at least a major portion of said thumb support framework; and

,

means for removably attaching said thumb support to said splint.

13. A splint as claimed in claim 12 wherein said attachment means for said removable thumb support further comprises:

at least one patch of a plurality of small hooks adapted to engage brushed material adhered to at least one of said thumb support and said splint;

at least one patch of brushed material adapted to engage a plurality of small hooks adhered to at least one of said thumb support and said splint; and

wherein,

said removable thumb support is attached to the palmar support and the MP extension.

14. A splint as claimed in claim 13 wherein said removable thumb support further comprises:

adjustable strap means for securing said removable thumb support to said splint.

15. A splint as claimed in claim 1 further comprising:

a dorsal MP extension stop comprising a manually bendable dorsal proximal phalangeal piece adapted to contact, cover and follow the curve of the proximal phalanges of the fingers; and

,

a dorsal IP extension assist adapted for assisting extension of the IP joints of the fingers of a hand and which is secured to said dorsal MP extension stop.

16. A splint as claimed in claim 15 wherein:

said dorsal MP extension stop comprises a framework of wire formed as an extension of said palmar piece with a pliant cushioning material enclosing at least a major portion of said framework;

said IP extension assist comprises a transverse dorsal substantially U-shaped extension of said dorsal MP extension stop framework and elevated therefrom;

at least one finger sling for support of the distal end of a finger;

adjustable elastic tension means attached to each said finger sling;

means attached to said U-shaped extension for support of said finger sling and said elastic tension means;

means attached to said splint for attachment of said elastic tension means.

17. A splint as claimed in claim 16 wherein said IP extension assist further comprises:

said means attached to said U-shaped extension comprises at least one length of bendable wire having a loop at one end;

means for removably attaching each said bendable wire transversely and longitudinally to said U-shaped extension;

each said finger sling having means for removable attachment of said adjustable elastic tension means;

said adjustable elastic tension means attached to said finger sling being held by said loop of bendable wire and removably secured to said means attached to said splint for said elastic tension means.

18. A splint as claimed in claim 17 wherein:

said means for removable attachment of each said bendable wire to said U-shaped extension comprises two lengths of tubing each surrounding a leg of said U-shaped extension, each said length of tubing including a pair of aligned transverse apertures through which each said bendable wire can be removably inserted and which can be moved transversely along each leg by movement of each respective length of tubing;

each said adjustable elastic tension means further comprises a length of string which is attached at one end to a finger sling, is threaded through the end loop of said bendable wire, is extended over said U-shaped extension, and is attached to a length of elastic which is attached to said elastic tension securement means on said splint.

19. A splint as claimed in claim 18 further comprising as a major piece:

a thumb support.

20. A splint as claimed in claim 19 wherein said thumb support is removable and comprises:

a framework of a substantially L-shaped strip of bendable metal, one leg of which is substantially aligned with the longitudinal axis of the thumb, the other leg of which is bent into a substantially circular configuration to support the thumb;

a pliant cushioning material enclosing at least a major portion of said framework;

attachment means on said thumb support and on said splint for removably attaching said thumb support to said splint.

21. A splint as claimed in claim 20 wherein said removable thumb support further comprises:

a removable finger sling;

means attached to said thumb support for supporting said removable finger sling;

adjustable elastic tension means.

22. A splint as claimed in claim 21 wherein said removable thumb support further comprises:

a length of bendable wire having a loop at one end and a U-shaped bend at the other end, said U-shaped bend serving as an adjustable point of attachment of said bendable wire to said thumb support attachment means on said thumb support and on said splint;

said finger sling having means for removable attachment of said adjustable elastic tension means;

said adjustable elastic tension means attached to said finger sling being held by said loop of bendable wire and secured to said means attached to said splint for said elastic tension means.

23. A hand splint which does not contact the volar wrist comprising:

a manually bendable support framework with a pliant cushioning material enclosing at least a major portion of said framework;

said splint having an ulnar and a radial side corresponding to the contact of the splint with a forearm and comprising as major pieces;

a palmar piece adapted to extend under and across the palmar arch of a hand;

a proximal dorsal forearm piece adapted to contact the dorsal wrist and at least a portion of the dorsal forearm;

a dorsal hand piece extending between said palmar piece and said proximal dorsal forearm piece and adapted to contact and support the radial side of the hand and forearm;

said palmar piece, proximal dorsal forearm piece, and said hand piece forming a substantially "C" shape;

the top of the "C" including the palmar piece;

the back of the "C" adapted to extend along the radial side of the arm and including the dorsal hand piece;

the base of the "C" forming the proximal dorsal forearm piece and including a portion of the back of the "C" forming a radial extension adapted to extend along the radial side of the arm, a transverse extension adapted to extend across the dorsal forearm, and an ulnar extension adapted to extend along the ulnar side of the arm toward the dorsal wrist;

a thumb support attached to said support framework;

means for holding said major pieces together;

securement means for securing said splint to said hand and forearm; and

,

means to provide adjustable tension between said proximal dorsal forearm piece and said ulnar extension and adapted to contact only the dorsal side of the wrist.

24. A splint as claimed in claim 23 wherein:

said framework is formed of a single length of malleable wire;

said thumb support comprises a malleable length of wire having two major sections, one section of which is adapted to be substantially aligned with the longitudinal axis of the thumb and another section of which is adapted to be substantially aligned with the thenar eminence of the thumb;

said means to provide adjustable tension between said dorsal forearm piece and said ulnar extension and adapted to contact only the dorsal side of the wrist comprises an adjustable dorsal strap attached between said radial and ulnar extensions;

said securement means comprises adjustable strap means for extending ventrally across the proximal end of said proximal forearm piece and secured between said radial and ulnar extensions; and

,

adjustable strap means secured to said palmar piece and adapted to extend diagonally across the dorsal side of the hand from said radial side to said ulnar side of said splint and secured to said dorsal hand piece.

25. A splint as claimed in claim 24 wherein:

said strap means are comprised of an elastic strap;

and further comprising at least one area of a plurality of small hooks adapted to engage brushed material adhered to at least one of said strap and said palmar, dorsal hand, and proximal pieces; and

,

at least one area of brushed material adapted to engage a plurality of small hooks adhered to at least one of said strap and said palmar, dorsal hand, and proximal pieces.

26. A splint as claimed in claim 25 wherein said strap means further comprises:

a first lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said first hinge being attached to the distal end of said palmar piece;

a second lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said second hinge being attached to the proximal dorsal forearm piece for securing said splint around the ventral forearm;

a third lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said third hinge being attached to the proximal forearm piece in the wrist area and adapted to provide adjustable tension on the dorsal side of the wrist.

27. A hand splint which does not contact the volar wrist comprising:

a manually bendable support framework with a pliant cushioning material enclosing at least a major portion of said framework;

said splint having an ulnar and a radial side corresponding to the contact of the splint with a forearm and comprising as major pieces;

a palmar piece adapted to extend under and across the palmar arch of a hand;

a proximal dorsal forearm piece adapted to contact the dorsal wrist and at least a portion of the dorsal forearm;

a dorsal hand piece extending between said palmar piece and said proximal dorsal forearm piece and adapted to contact and support the radial side of the hand and forearm;

said palmar piece, proximal dorsal forearm piece, and said dorsal hand piece forming a substantially "C" shape;

the top of the "C" including the palmar piece;

the back of the "C" adapted to extend along the radial side of the arm and including the dorsal hand piece;

the base of the "C" forming the proximal dorsal forearm piece and including a portion of the back of the "C" forming a radial extension adapted to extend along the radial side of the arm, a transverse extension adapted to extend across the dorsal forearm, and an ulnar extension adapted to extend along the ulnar side of the dorsal forearm toward the wrist;

a volar MP joint support attached to said support framework, said MP joint support being formed as a transverse extension of said palmar piece, and being at least partially enclosed by a pliant cushioning material;

an adjustable dorsal strap means for holding said MP joint support into contact with a hand;

a removable thumb support;

means for removably attaching said thumb support to said splint;

means for holding said major pieces together;

securement means for securing said splint to said hand and forearm; and

,

means adapted to provide adjustable tension on the dorsal side of the wrist.

28. A splint as claimed in claim 27 wherein:

said framework is formed of a single length of malleable wire;

said removable thumb support comprises a length of malleable wire adapted to provide support to the thumb and includes an attached strip of malleable metal which is bent into a generally circular configuration adapted to support the distal end of the thumb;

a pliant cushioning material enclosing at least a major portion of said thumb support framework;

said attachment means for said removable thumb support comprises at least one patch of a plurality of small hooks adapted to engage brushed material adhered to at least one of said thumb support and said splint;

at least one patch of brushed material adapted to engage a plurality of small hooks adhered to at least one of said thumb support and said splint;

said removable thumb support is attached to the palmar support and the MP extension;

adjustable strap means for securing said removable thumb support to said splint;

said means adapted to provide adjustable tension between said proximal dorsal forearm piece and said ulnar extension and adapted to contact the dorsal side of the wrist comprises an adjustable dorsal strap attached between said radial and ulnar extensions;

said securement means comprises adjustable strap means adapted to extend ventrally across the proximal end of said proximal forearm piece and secured between said radial and ulnar extensions; and

,

adjustable strap means secured to said palmar piece and adapted to extend diagonally across said dorsal hand from said radial side to said ulnar side and secured to said dorsal hand piece.

29. A splint as claimed in claim 28 wherein:

said strap means are comprised of an elastic strap;

at least one area of a plurality of small hooks adapted to engage brushed material adhered to at least one of said strap and said palmar, dorsal hand, and proximal pieces; and

,

at least one area of brushed material adapted to engage a plurality of small hooks adhered to at least one of strap and said palmar, dorsal hand, and proximal pieces.

30. A splint as claimed in claim 29 wherein said strap means further comprises:

a first lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said first hinge being attached to the distal end of said palmar piece;

a second lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said second hinge being attached to the proximal dorsal forearm piece adapted for securing said splint around the ventral forearm;

a third lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said third hinge being attached to the proximal forearm piece and adapted to contact the dorsal wrist area and to provide adjustable tension with said strap means on the dorsal side of the wrist.

31. A hand splint which does not contact the volar wrist comprising:

a manually bendable support framework with a pliant cushioning material enclosing at least a major portion of said framework;

said splint having an ulnar and a radial side corresponding to the contact of the splint with a forearm and comprising as major pieces;

a palmar piece adapted to extend under and across the palmar arch of a hand;

a proximal dorsal forearm piece adapted to contact the dorsal wrist and at least a portion of the dorsal forearm;

a dorsal hand piece extending between said palmar piece and said proximal dorsal forearm piece and adapted to contact and support the radial side of the hand and forearm;

said palmar piece, proximal dorsal forearm piece, and said dorsal hand piece forming a substantially "C" shape;

the top of the "C" including the palmar piece;

the back of the "C" adapted to extend along the radial side of the arm and including the dorsal hand piece;

the base of the "C" forming the proximal dorsal forearm piece and including a portion of the back of the "C" forming a radial extension adapted to extend along the radial side of the arm, a transverse extension adapted to extend across the dorsal forearm, and an ulnar extension adapted to extend along the ulnar side of the arm toward the dorsal wrist;

a removable thumb support attached to said support framework;

a dorsal MP extension stop comprising a manually bendable dorsal proximal phalangeal piece adapted to contact, cover and follow the curve of the proximal phalanges of the fingers; and

,

a dorsal IP extension assist adapted for assisting extension of the IP joints of the fingers of a hand and which is secured to said dorsal MP extension stop;

means for holding said major pieces together;

securement means for securing said splint to a hand and forearm; and

,

means to provide adjustable tension between said proximal dorsal forearm piece and said ulnar extension and adapted to contact the dorsal side of the wrist.

32. A splint as claimed in claim 31 wherein:

said framework is formed of a single length of malleable wire;

said removable thumb support comprises a framework of a substantially L-shaped strip of bendable metal, one leg of which is adapted to be substantially aligned with the longitudinal axis of the thumb, the other leg of which is bent into a substantially circular configuration adapted to support the thumb;

a pliant cushioning material enclosing at least a major portion of said framework;

a removable finger sling;

means attached to said thumb support for supporting said removable finger sling;

adjustable elastic tension means attached to said finger sling;

said finger sling having means for attachment of said adjustable elastic tension means;

attachment means on said thumb support and on said splint for removably attaching said thumb support to said splint;

a length of bendable wire having a loop at one end and a U-shaped bend at the other end, said U-shaped bend serving as an adjustable point of attachment of said bendable wire to said attachment means on said thumb support and on said splint;

means attached to said splint for attachment of said elastic tension means;

said adjustable elastic tension means attached to said finger sling being held by said loop of bendable wire and secured to said means attached to said splint for said elastic tension means;

said means adapted to provide adjustable tension between said dorsal forearm piece and said ulnar extension and adapted to contact the dorsal side of the wrist comprises an adjustable dorsal strap attached to said proximal piece between said radial and ulnar extensions and adapted to contact the dorsal wrist;

said securement means comprises adjustable strap means extending ventrally across the proximal end of said proximal forearm piece and secured between said radial and ulnar extensions; and

,

adjustable strap means secured to said palmar piece and adapted to extend diagonally across said dorsal hand from said radial side to said ulnar side and secured to said dorsal hand piece.

33. A splint as claimed in claim 32 wherein:

said strap means are comprised of an elastic strap;

at least one area of a plurality of small hooks adapted to engage brushed material adhered to at least one of said strap and said palmar piece, dorsal hand piece, and proximal piece; and

,

at least one area of brushed material adapted to engage a plurality of small hooks adhered to at least one of said strap and said palmar, dorsal hand, and proximal pieces.

34. A splint as claimed in claim 33 wherein:

said means for attachment of each said bendable wire to said U-shaped extension comprises two lengths of tubing each surrounding a leg of said U-shaped extension, each said length of tubing including a pair of aligned transverse apertures through which each said bendable wire can be removably inserted and which can be moved transversely along each leg by movement of each respective length of tubing;

each adjustable elastic tension means attached to each said finger sling comprises a length of string which is attached at one end to a finger sling, is threaded through the end loop of said bendable wire, is extended over said U-shaped extension, and is attached to a length of elastic which is attached to said elastic tension securement means on said splint;

said strap means further comprises;

a first lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said first hinge being attached to the distal end of said palmar piece;

a second lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said second hinge being attached to the proximal dorsal forearm piece for securing said splint around the ventral forearm;

a third lightly padded flexible hinge having two facing interior sides, at least one interior side being covered with a material selected from a plurality of small hooks adapted to engage the brushed material on a strap and brushed material adapted to engage a plurality of small hooks on a strap;

said third hinge being attached to the proximal forearm piece and adapted to contact the dorsal wrist area to provide adjustable tension on the dorsal side of the wrist.