Adjustable socket system

Patent metadata

Field	Value
Publication number	US-11986404-B2
Application number	US-202217735557-A
Country	US
Kind code	B2
Filing date	May 3, 2022
Priority date	Oct 22, 2010
Publication date	May 21, 2024
Grant date	May 21, 2024

Abstract

An adjustable prosthetic socket includes proximal and distal ends and an axis extending between the proximal and distal ends. A distal base is adapted to support a distal portion of a residual limb and is located at the distal end of the socket. First and second spines extend upward from the distal base that define at least part of a circumference of the socket about the axis. A proximal support is connected to the second spine and arranged to distribute pressure from the second spine over a portion of the residual limb. A tensioning system is operatively connected to the first and second spines and arranged to selectively adjust the circumference of the socket. The tensioning system includes a dial tensioner connected to the first spine.

First claim

The invention claimed is:

1. An adjustable socket system for receiving a residual limb, the adjustable socket system having proximal and distal ends and an axis extending between the proximal and distal ends, the adjustable socket system having anterior and posterior sides corresponding to posterior and anterior sides of the residual limb, the adjustable socket system comprising:
a strut device arranged to be mounted along an anterior side of a residual limb and a sagittal plane of a leg, the strut device including a strut base at the distal end of the adjustable socket system, the strut base defining at least in part a limb seat adapted to receive and support a distal end portion of a residual limb; the strut base further including a sleeve at an upper part thereof, the strut device being rigid to resist bending and deflection by the residual limb;
an adjustable strut slidably engaging the sleeve and lockable at a plurality of predefined height settings;
an anterior clamp element secured to the adjustable strut at the anterior side of the adjustable socket system, the anterior clamp element including at least one anterior wing extending laterally from the anterior clamp element;
a posterior clamp element located opposite the anterior clamp element at the posterior side of the adjustable socket system, the posterior clamp element including at least one posterior wing extending laterally from the posterior clamp element;
a strap system extending to and between the at least one anterior wing and the at least one posterior wing to selectively adjust a circumference defined between the at least one anterior wing and the at least one posterior wing;
wherein a sole connection by which the posterior clamp element secures to the anterior clamp element consists of the strap system;
wherein a sole connection by which the posterior clamp element secures to the strut device consists of the strap system.

2. The adjustable socket system of claim 1 , wherein the strut device is sufficiently rigid to resist deflection or bending, and is arranged to stably hold a residual limb and transfer weight bearing forces from the residual limb to a ground surface.

3. The adjustable socket system of claim 1 , wherein the strap system includes at least one strap element operatively connected to the posterior clamp element to the strut device and the anterior clamp element.

4. The adjustable socket system of claim 1 , wherein the anterior clamp element secures to an upper end of the adjustable strut 22 by a sleeve formed by the anterior clamp element, the sleeve is adapted to receive the adjustable strut and form a substantially rigid portion of the anterior clamp element.

5. The adjustable socket system of claim 4 , wherein the at least one anterior wing includes upper and lower wings on opposed sides of the anterior clamp element, and extending a distance from the adjustable strut, and spaced apart in height by a gap formed between the upper and lower wings.

6. The adjustable socket system of claim 5 , wherein each of the upper and lower wings defines an arm flexibly extending from the sleeve and includes a head adapted to grasp part of a residual limb.

7. The adjustable socket system of claim 5 , the posterior clamp element including a posterior base portion and the at least one posterior wing includes two posterior wings flexibly extending laterally from the posterior base portion; wherein the posterior base portion is more rigid than the two posterior wings.

8. The adjustable socket system of claim 4 , wherein the anterior clamp element includes an adjustable anatomical section arranged to receive an insert selected with a geometry to accommodate a predetermined anatomical section of a residual limp.

9. The adjustable socket system of claim 1 , wherein the strap system includes at least one strap forming a bow strap defined as an elongate vertical strap extending between the proximal and distal ends of the socket system, the bow strap mounting to the anterior clamp element and is adjustably secured to the strut base.

10. The adjustable socket system of claim 1 , wherein the strap system includes an upper strap connecting the anterior clamp element to the posterior clamp element.

11. The adjustable socket system of claim 1 , wherein the strut base forms an anterior opening arranged to accommodate fluctuations of a volume of a residual limb.

12. The adjustable socket system of claim 1 , wherein the limb seat defines a plurality of slots on an anterior side thereof adapted to receive the strap system.

13. The adjustable socket system of claim 1 , wherein the limb seat defines a plurality of fixation openings located on an outer side of the strut device and arranged to receive strap end portions of the strap system.

14. The adjustable socket system of claim 1 , wherein a bottom portion of the strut base defines a base connector.

15. The adjustable socket system of claim 14 , wherein the base connector is a male/female pyramid adapter having a smaller perimeter or diameter than the limb seat.

Assignees

• Ossur Hf

Inventors

• Bache Andrew

Classifications

• A61F2/80 Primary

  Sockets, e.g. of suction type · CPC title

• A61F2/66

  Feet; Ankle joints · CPC title

• A61F2/78

  Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump · CPC title

• A61F2002/5027

  for adjusting cross-section · CPC title

• A61F2002/6614

  Feet · CPC title