Pump system for use with a prosthetic device

Patent metadata

Field	Value
Publication number	US-2016346100-A1
Application number	US-201615163117-A
Country	US
Kind code	A1
Filing date	May 24, 2016
Priority date	May 29, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A vacuum suspension system includes a prosthetic socket adapted to receive a residual limb. A pump system includes a pump mechanism in fluid communication with the prosthetic socket, and at least one sensor associated with the prosthetic socket and/or the pump mechanism. A control system is operably connected to the pump mechanism and the least one sensor. The control system is arranged to receive and process data from the at least one sensor and to actuate the pump mechanism based on the received data from the at least one sensor.

First claim

1 . A vacuum suspension system comprising:
a prosthetic socket adapted for receiving a residual limb; a pump system including a pump mechanism in fluid communication with the prosthetic socket, and at least one sensor associated with at least one of the prosthetic socket and the pump mechanism; and a control system operably connected to the pump mechanism and the at least one sensor, the control system arranged to receive and process data from the at least one sensor and to actuate the pump mechanism based on the received data from the at least one sensor.

2 . The system of claim 1 , wherein the at least one sensor is adapted to detect pressure in the prosthetic socket.

3 . The system of claim 1 , wherein the control system is arranged to direct the pump mechanism to increase a vacuum in the prosthetic socket if the received data indicates pressure in the prosthetic socket is above a value limit.

4 . The system of claim 1 , wherein the control system is arranged to direct the pump mechanism to decrease a vacuum in the prosthetic socket if the received data indicates pressure in the prosthetic socket is below a value limit.

5 . The system of claim 1 , wherein the data includes activity information associated with an activity level of a user.

6 . The system of claim 5 , wherein the control system is arranged to direct the pump mechanism to increase a vacuum in the prosthetic socket if the activity information indicates a user is in a period of activity.

7 . The system of claim 5 , wherein the control system is arranged to direct the pump mechanism to decrease a vacuum in the prosthetic socket if the activity information indicates a user is in a period of inactivity.

8 . The system of claim 5 , wherein the activity information includes at least one of heartrate information and blood pressure information.

9 . The system of claim 5 , wherein the activity information includes force information.

10 . The system of claim 1 , wherein the at least one sensor is adapted to detect at least one location and motion of the residual limb relative to the prosthetic socket.

11 . The system of claim 1 , wherein the at least one sensor is adapted to detect at least one of location or motion of the pump mechanism.

12 . The system of claim 1 , wherein the at least one sensor is adapted to detect at least one of location or motion of a prosthetic foot operatively connected to the prosthetic socket.

13 . The system of claim 12 , wherein the pump system is secured to the prosthetic foot.

14 . The system of claim 12 , wherein the pump system is secured to an adaptor system extending between the prosthetic socket and the prosthetic foot.

15 . The system of claim 1 , wherein the pump system is secured to the prosthetic socket.

16 . A method of regulating pressure inside a prosthetic socket comprising:
measuring pressure inside of a prosthetic socket using one or more sensors operatively coupled to a pump system to obtain pressure information associated with an inside of the prosthetic socket, the pump system having a pump mechanism in fluid communication with the inside of the prosthetic socket; and actuating the pump mechanism without human intervention to regulate vacuum inside the prosthetic socket based on the pressure information.

17 . The method of claim 16 , wherein obtaining the pressure information includes comparing the pressure information to a value limit.

18 . The method of claim 17 , wherein actuating the pump mechanism includes increasing the vacuum in the prosthetic socket if the pressure information is above the value limit.

19 . A vacuum suspension system comprising:
a prosthetic socket adapted for receiving a residual limb; and a pump system secured to the prosthetic socket, the pump system including a pump mechanism in fluid communication with the prosthetic socket, at least one pressure sensor associated with at least one of the prosthetic socket and the pump mechanism, and a control system operably connected to the pump mechanism and the at least one sensor, the control system arranged to receive and process pressure data from the at least one sensor and to actuate the pump mechanism based on the received pressure data.

20 . The system of claim 19 , wherein the pump mechanism includes a pump housing and a membrane attached to the pump housing such that a fluid chamber is defined between the membrane and the pump housing.

Assignees

• Ossur Iceland Ehf

Inventors

• Sverrisson Atli Orn
• Halldorsdottir Gudfinna

Classifications

• A61F2002/802

  Suction sockets, i.e. utilizing differential air pressure to retain the prosthesis on the stump · CPC title

• A61F2002/704

  computer-controlled, e.g. robotic control · CPC title

• A61F2/80 Primary

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

• A61F2/66

  Feet; Ankle joints · CPC title

• A61F2/742

  Low pressure systems, e.g. vacuum pump · CPC title