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Surgical retractor and blood flow monitor

  • US 4,784,150 A
  • Filed: 11/04/1986
  • Issued: 11/15/1988
  • Est. Priority Date: 11/04/1986
  • Status: Expired due to Fees
First Claim
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1. A surgical retractor system for manipulation of living tissues and/or organs during diagnostic and/or surgical procedures, providing for the monitoring of the presence or absence of blood flow in the tissue adjacent to the surgical retractor, comprising:

  • a. a retractor blade;

    b. said retractor blade including means for directing light having predetermined spectral characteristics related to blood onto the adjacent tissues and/or organs;

    c. said retractor blade also including light receiving means mounted in cooperative relationship with said light directing means for receiving light which is reflected from the tissues and/or organs; and

    d. signal processing means coupled to said light receiving means for monitoring the signal received therefrom for indicating the presence or absence of blood flow through the adjacent tissues and/or organs.

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