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Surgical tool with integrated pressure and flow sensors

  • US 6,740,058 B2
  • Filed: 06/08/2001
  • Issued: 05/25/2004
  • Est. Priority Date: 06/08/2001
  • Status: Expired due to Term
First Claim
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1. A surgical tool, comprising:

  • (a) a rigid body including a needle shaped portion for passing into tissue and defining a flow channel extending therethrough for passing a flow of fluid through the tool; and

    (b) a sensor responsive to a condition in the flow channel and integrally attached to the rigid body wherein the sensor includes a membrane on the rigid body in fluid communication with the flow channel and having a membrane thickness which is less than a thickness of the rigid body wherein the sensor includes at least one resistor formed on the membrane, and wherein the sensor includes at least one resistor formed on the rigid body near the membrane.

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