Medical device and procedure simulation
First Claim
1. A device, comprising:
- an interface member including a material of selectively variable density, wherein the material includes a first layer having a first density and a second layer having a second density;
a manipulandum movable in a degree of freedom, the manipulandum configured to penetrate the material;
a sensor configured to output a position signal based on the position of the manipulandum; and
an actuator configured to change the density of the material within at least a portion of the interface member in response to the position signal, the actuator configured to change the density of the second layer to be different from the density of the first layer as the manipulandum is moved between the first layer and the second layer, wherein the change in density imparts a haptic effect to the manipulandum.
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0 Petitions
Accused Products
Abstract
A device is disclosed that includes an interface member including a material and a manipulandum movable in a degree of freedom. The manipulandum is able to penetrate the material. A sensor is configured to output a position signal based on the position of the manipulandum. An actuator is configured to output haptic feedback by applying a compressive force to the material based on the position signal. In other embodiments, a method is disclosed that includes receiving a position signal associated with a position of a manipulandum, where at least a portion of the manipulandum penetrates the interface material. Haptic feedback is output by varying a density of the interface material based on the position signal.
125 Citations
26 Claims
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1. A device, comprising:
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an interface member including a material of selectively variable density, wherein the material includes a first layer having a first density and a second layer having a second density; a manipulandum movable in a degree of freedom, the manipulandum configured to penetrate the material; a sensor configured to output a position signal based on the position of the manipulandum; and an actuator configured to change the density of the material within at least a portion of the interface member in response to the position signal, the actuator configured to change the density of the second layer to be different from the density of the first layer as the manipulandum is moved between the first layer and the second layer, wherein the change in density imparts a haptic effect to the manipulandum. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device, comprising:
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a manipulandum movable in a degree of freedom; a sensor configured to output a position signal based on a position of the manipulandum; a retainer defining an interior in which a material is disposed, the material configured to receive an object moved by the manipulandum and having a selectively variable density, wherein the material includes a first layer having a first density and a second layer having a second density; and an actuator coupled to the retainer, the actuator configured to change the density of the material within at least a portion of the interior of the retainer in response to the position signal, the actuator configured to change the density of the second layer to be different from the density of the first layer as the manipulandum is moved between the first layer and the second layer, wherein the change in density of the material imparts a haptic effect to the manipulandum. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method, comprising:
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receiving a position signal via a sensor, the position signal associated with a position of a manipulandum, at least a portion of the manipulandum penetrating a material within an interface member, the material having a selectively variable density wherein the material includes a first layer having a first density and a second layer having a second density; and adjusting the density of the second layer of the material to be different from the density of the first layer of the material within at least a portion of the interface member via an actuator coupled to the sensor, wherein the adjusting of the density imparts a haptic effect onto the manipulandum as the manipulandum is moved between the first layer and the second layer. - View Dependent Claims (21, 22)
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23. An interface member for use with a haptic feedback device including a manipulandum movable in a degree of freedom, the interface member configured to be penetrated by the manipulandum, the interface member comprising:
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a material portion configured to be penetrated by at least a portion of a manipulandum, the material portion and having a selectively variable density, wherein the material includes a first layer having a first density and a second layer having a second density; a sensor configured to measure a position of the manipulandum within the material portion and output a position signal associated with the measured position; and an actuator coupled to the retainer, the actuator configured to change the density of the material portion in response to the position signal, the actuator configured to change the density of the second layer to be different from the density of the first layer as the manipulandum is moved between the first layer and the second layer, wherein the change in density of the material imparts a haptic effect onto the manipulandum. - View Dependent Claims (24, 25, 26)
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Specification