Staple-based heart valve treatment
View Patent ↗A medical device for treating a heart valve may include a master staple and a loop fixed to the master staple prior to deployment of the master staple. The heart valve may be treated with that master staple and loop, and a plurality of follower staples that are independent from the loop prior to deployment of the master staple, by closing the master staple into the valve annulus, such that the point of the loop that is fixed to the master staple is fixed relative to the valve annulus, and engaging the loop with a plurality of follower staples after that closing.
1. A method performed on a heart having a valve with a valve annulus, comprising:
providing a master staple, a loop, and a plurality of follower staples;
connecting said loop to said master staple;
closing said master staple into the valve annulus only after said connecting, such that the point of said loop fixed to said master staple is fixed relative to the valve annulus; and
engaging the valve annulus and said loop with said plurality of follower staples only after said connecting and said closing said master staple;
wherein said follower staples are separate and independent from said loop prior to said closing of said master staple; and
wherein said connecting comprises tying one end of said loop to said master staple before said engaging and tying the other end of said loop to said master staple after said engaging.
2. The method of claim 1 , further comprising splaying said master staple before said closing.
3. The method of claim 2 , further comprising providing an effector configured to hold and deploy said master staple and said follower staples; and further comprising advancing said master staple relative to said effector after said splaying and before said closing.
4. The method of claim 1 , further comprising providing an effector configured to hold and deploy said master staple and said follower staples; and further comprising introducing said effector into the heart interventionally.
5. The method of claim 1 , wherein said follower staples each include a notched engagement feature, and wherein said engaging includes receiving said loop into each said notch.