×

Replacement heart valve sizing device

  • US 7,007,396 B2
  • Filed: 05/29/2003
  • Issued: 03/07/2006
  • Est. Priority Date: 05/29/2003
  • Status: Expired due to Fees
First Claim
Patent Images

1. A heart valve sizing system comprising:

  • a lumen advanceable in vasculature;

    an inside caliper device at a distal end of the lumen, the inside caliper device including;

    a four bar linkage with first and second opposing pivot points and third and fourth opposing pivot points, anda push rod connected to the second pivot point for alternatively urging the third and fourth pivot points together when extended and urging the third and fourth pivot points apart when retracted to gauge the inside dimension of the vasculature; and

    means for reading the dimension gauged by the inside caliper device, the means for reading including;

    a member connected on one end to the push rod,a mechanism at the other end of the member which advances and retracts the member,a position sensor which senses the position of the member, anda readout device responsive to the position sensor which correlates the position of the member to the dimension gauged by the four bar linkage.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×