×

Medical device and procedure simulation

  • US 9,336,691 B2
  • Filed: 03/16/2009
  • Issued: 05/10/2016
  • Est. Priority Date: 03/18/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A device, comprising:

  • an interface member including a compressible material of selectively variable density;

    a manipulandum movable in a degree of freedom, the manipulandum configured to cause an object to penetrate the material;

    a sensor configured to output a position signal based on the depth of penetration of the object within the material; and

    an actuator configured to;

    apply a first compressive force to the material to change the density of the material within at least a portion of the interface member in response to the position signal, wherein the change in density of the material imparts a haptic effect to the manipulandum, andapply a second compressive force to the material substantially simultaneously with the first compressive force, wherein the first compressive force is different from the second compressive force.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×