Back to results
US 9,241,812 B2Granted
Control system for prosthesis
OwnerJames Jay Martin, Pravin Chaubey +3inventors
InventorsJames Jay Martin, Pravin Chaubey, David Boone, Matt Kozlowski, Adam Arabian
Life of this patent
Estimating the term…
Abstract
A vacuum pump system for a prosthesis device includes an enhanced suspension mechanism and cooperates with a pressure source, an adaptor assembly, circuitry, and a power source. A virtually air-tight seal between a residual limb and a socket of the prosthesis allows a vacuum fit to be generated by the pump system. The pump system may be controlled with various circuits and processors receiving instructions from a software program. The pump system may be located within a pylon, but yet remain vibrationally and acoustically de-coupled from the pylon.
Claims16
A method of controlling a prosthetic vacuum suspension device, the method comprising:
- sensing, by a pressure sensor, a pressure level in a prosthetic socket and controlling the pressure with a pump located within a pylon of the prosthetic device;
- sensing, by at least one of a temperature sensor and a humidity sensor, at least one of temperature and humidity;
- determining, by a control device coupled to the pressure sensor and the at least one of the temperature sensor and the humidity sensor, a first present activity pattern based on both of the sensing of the pressure level by the pressure sensor and the sensing of the at least one of temperature and humidity by the at least one of the temperature sensor and the humidity sensor;
- selecting, by the control device, a first known activity pattern from a plurality of activity patterns based on the first present activity pattern such that the first known activity pattern is selected based on both the sensing of the pressure level and the at least one of temperature and humidity, the first present activity pattern having first pressure levels;
- adjusting, by the control device, pressure limits for the pressure level in the prosthetic socket to first pressure limits for the first known activity pattern;
- determining, by the control device coupled to the pressure sensor and the at least one of the temperature sensor and the humidity sensor, a second present activity pattern based on both of the sensing of the pressure level by the pressure sensor and the sensing of the at least one of temperature and humidity by the at least one of the temperature sensor and the humidity sensor;
- selecting, by the control device, a second known activity pattern different from the first known activity pattern from the plurality of activity patterns based on the second present activity pattern such that the second known activity pattern is selected based on both the sensing of the pressure level and the at least one of temperature and humidity, the first present activity pattern having second pressure levels mimicking the first pressure levels;
- and
- adjusting, by the control device, pressure limits for the pressure level in the prosthetic socket to second pressure limits for the second known activity pattern, the second pressure limits being different from the first pressure limits.
6 more elements
A method of controlling a prosthetic vacuum suspension device, the method comprising:
- sensing, by a pressure sensor, a pressure level in a prosthetic socket and controlling the pressure with a pump located within a pylon of the prosthetic device;
- sensing, by a temperature sensor, temperature;
- sensing, by a humidity sensor, humidity;
- determining, by a control device coupled to the pressure sensor, the temperature sensor, and the humidity sensor, a first present activity pattern based on all of the sensing of the pressure level, temperature, and humidity;
- selecting, by the control device, a first known activity pattern from a plurality of activity patterns based on the determined present activity pattern such that the first known activity pattern is selected based on all of the sensing of the pressure level, temperature, and humidity, the selecting the first known activity pattern including inputting all of an output of the temperature sensor, an output of the humidity sensor, and an output of the pressure sensor into a selection algorithm;
- and
- performing a first adjusting, by the control device, pressure limits for the pressure level in the prosthetic socket based on pressure limits for the first known activity pattern;
- determining, by the control device a second present activity pattern based on all of the sensing of the pressure level, temperature, and humidity;
- selecting, by the control device, a second known activity pattern from the plurality of activity patterns based on the determined present activity pattern such that the known activity pattern is selected based on all of sensing the pressure level, temperature, and humidity, the selecting the second known activity pattern including inputting all of the output of the temperature sensor, the output of the humidity sensor, and the output of the pressure sensor into the selection algorithm;
- and
- performing a second adjusting, by the control device, of the pressure limits for the pressure level in the prosthetic socket based on pressure limits for the second known activity pattern;
- wherein the pressure limits for the second known activity pattern are different from the pressure limits for the first activity pattern;
- and
- wherein the first and second present activity patterns are not distinguishable from one another based exclusively on the sensing of the pressure level by the pressure sensor.
11 more elements
Dependencies are inferred from the claim text.