US 4,932,396 A · Elliptical ring splint with spacer

Abstract

An adjustable splint made of silver or gold alloys for stabilizing in extension or realigning the interphalangeal joints of the fingers and thumb consisting of two elliptical rings joined by an elliptical spacer. The individually sized proximal and distal elliptical rings are worn about the fingers on either side of the joint being splinted and disposed at an angle with respect to the axis of the finger. The rings are joined by an elliptical spacer which is placed over the dorsal surface of the joint and sized to distribute and spread the pressure uniformly and comfortably over the surface of the joint. The spacer acts in conjunction with the proximal and distal rings to hold the finger in varying degrees of extension, depending on the adjustment of the splint. The splint may be rotated 90.degree., placing the spacer on the lateral border of a joint to realign an angularly deviated joint.

Claims7

Dependent claims

1. A splint for straightening a finger having an angular deformation that divides the finger into a distal portion and a proximal portion which are angularly disposed with one another and from the finger's normal longitudinal axis, and said finger having a joint area formed where said portions join, the combination comprising:

a spacer ring adapted to be placed in contact with said joint area on the side opposite the direction of said angular deformation for distribution of contact force about said joint area;
a first elliptical ring disposed in a single plane and having a first edge attached to a first side of said spacer ring and being angularly disposed with respect to said spacer ring and sized to circumscribe said proximal portion of said finger;
a second elliptical ring disposed in a single plane and having a first edge attached to a side of said spacer ring opposite of said first side and being angularly disposed with respect to said spacer ring and sized to circumscribe said distal portion of said finger;
said spacer ring and said first and second elliptical rings being made of a malleable precious metal alloy of sufficient rigidity to bring said distal and proximal portions into alignment with said longitudinal axis when said spacer ring is in contact with said joint area.

1 more element

A splint for straightening a finger that has an angular deformation that divides the finger into a distal portion and a proximal portion which are angularly disposed with one another and from the finger's normal longitudinal axis, and said finger having a joint area formed where said portions join, the combination comprising:

an elliptical joint contact ring having a plane generally parallel to said longitudinal axis;
a proximal elliptical ring having a major axis in the plane of said proximal elliptical ring and along its greatest length that intersects a first portion of said joint contact ring;
a distal elliptical ring having a major axis in the plane of said distal ring and along its greatest length that intersects a second portion of said joint contact ring;
said joint contact ring having an outer surface and an inner surface and having an axis through its geometric center perpendicular to the plane thereof and disposed for engagement with said joint area;
said joint contact ring adapted to be placed in contact with said joint area on the side opposite the direction of said angular deformation for distribution of contact force about said joint area;
means securing said first portion of said proximal ring to said joint contact ring in a manner so that the plane of said proximal ring is angularly disposed to the plane of said joint contact ring
means securing said portion of said distal ring to said joint contact ring in a manner so that the plane of said distal ring is angularly disposed to the plane of said joint contact ring and said first and second planes intersect above said outer surface;
said distal and proximal rings approximate the dimensions of the finger to be corrected;
said spacer and said proximal and distal elliptical rings being made of a deformable metal alloy attractive in appearance and of sufficient rigidity to hold said distal and proximal portions of said finger in close alignment with said longitudinal axis when said spacer is in contact with said enlarged area.

6 more elements

Dependencies are inferred from the claim text.

Elliptical ring splint with spacer

Life of this patent

Elliptical ring splint with spacer

Life of this patent

Abstract

Claims7