Patent ID: 9044247
Filing Date: 2015-06-02
Classification: A61B

Abstract:
1. A patent foramen ovale closing device for bringing septum primum and septum secundum into contact with each other and joining them together, comprising: a catheter dimensioned to be positioned in a living body and advanced into an atrium of a heart; a needle part movably positioned inside the catheter and possessing a distal end configured to puncture the septum primum; a clamping member mounted on the catheter and comprising: a linear part located inside the catheter and possessing a distal end; a bent part at the distal end of the linear part which is bent and which extends away from the linear part; and a distal end part at a distal end of the bent part and extending away from the bent part, the distal end part of the clamping member axially overlapping with the needle part, the distal end part of the clamping member extending away from the bent part in a manner gradually moving away from the needle part so that a distance between the distal end part and the needle part gradually increases at further distances from the bent part; the clamping member being axially movably mounted in the catheter so that a portion of the clamping member protruding from the catheter is retracted into the catheter as the clamping member is moved in an axially rearward direction relative to the catheter; the bent part of the clamping member laterally moving toward the needle part when the clamping member is moved in the axially rearward direction relative to the catheter so that the clamping member and the needle part cooperate to clamp, between the clamping member and the needle part, tissue of the septum primum and the septum secundum; and an energy supply operatively connected to at least one of the needle part and the clamping member to supply energy to join the tissue clamped between the needle part and the clamping member.