A method is provided, including positioning an annuloplasty structure along an annulus of an atrioventricular valve of a subject, the annuloplasty structure including a sleeve having a lumen. The annuloplasty structure is fastened to the annulus. Thereafter, an elongate member is advanced into the l
A method is provided, including positioning an annuloplasty structure along an annulus of an atrioventricular valve of a subject, the annuloplasty structure including a sleeve having a lumen. The annuloplasty structure is fastened to the annulus. Thereafter, an elongate member is advanced into the lumen, such that an elongate contraction-restricting element of the elongate member occupies a longitudinal contraction-restricted portion of the sleeve. Thereafter, a contractible portion of the sleeve is contracted, while the contraction-restricting element restricts contraction of the contraction-restricted portion of the sleeve.
대표청구항▼
1. A method comprising performing the following steps during a transcatheter procedure: positioning an annuloplasty structure along an annulus of an atrioventricular valve of a subject, the annuloplasty structure including a sleeve having a lumen and a longitudinal axis;anchoring the annuloplasty st
1. A method comprising performing the following steps during a transcatheter procedure: positioning an annuloplasty structure along an annulus of an atrioventricular valve of a subject, the annuloplasty structure including a sleeve having a lumen and a longitudinal axis;anchoring the annuloplasty structure to the annulus using a plurality of tissue anchors;separately from the anchoring, advancing an elongate member into the lumen and along the longitudinal axis of the sleeve, such that (a) an elongate contraction-restricting element of the elongate member occupies a longitudinal contraction-restricted portion of the sleeve, and (b) the elongate member is disposed entirely within the sleeve; andthereafter, contracting a contractible portion of the sleeve, while the contraction-restricting element restricts contraction of the contraction-restricted portion of the sleeve,wherein the elongate member is not within the sleeve during the positioning of the annuloplasty structure along the annulus. 2. The method according to claim 1, wherein the elongate member further includes one or more elongate contraction-facilitating elements disposed longitudinally adjacent to the contraction-restricting element,wherein advancing the elongate member into the lumen comprises advancing the elongate member into the lumen, such that the one or more elongate contraction-facilitating elements occupy one or more respective portions of the contractible portion of the sleeve, andwherein contracting the contractible portion of the sleeve comprises contracting the one or more contraction-facilitating elements. 3. The method according to claim 2, wherein the one or more elongate contraction-facilitating elements are compressible along a contraction-facilitating element longitudinal axis thereof, and wherein contracting the contractible portion of the sleeve comprises compressing the compressible contraction-facilitating elements. 4. The method according to claim 2, wherein the one or more elongate contraction-facilitating elements include two elongate contraction-facilitating elements disposed longitudinally flanking the contraction-restricting element. 5. The method according to claim 4, wherein advancing the elongate member comprises: positioning the longitudinal contraction-restricted portion of the sleeve along a posterior portion of the annulus along a middle scallop (P2) of a posterior leaflet of the valve; andpositioning the two elongate contraction-facilitating elements along respective portions of the annulus along (a) a lateral scallop (P1) of the posterior leaflet and extending to a left fibrous trigone, and (b) a medial scallop (P3) of the posterior leaflet and extending to a right fibrous trigone. 6. The method according to claim 2, wherein the elongate member includes a coiled element, which includes the contraction-restricting element and the one or more contraction-facilitating elements, and wherein a pitch of the coiled element is smaller at the contraction-restricting element than at the one or more contraction-facilitating elements. 7. The method according to claim 1, wherein the elongate member includes a coiled element, which includes the contraction-restricting element, and wherein advancing the elongate member comprises advancing the coiled element into the lumen. 8. The method according to claim 7, wherein advancing the coiled element into the lumen comprises advancing the coiled element into the lumen while the coiled element is in an at least partially uncoiled state, and allowing the coiled element to assume a coiled configuration within the sleeve. 9. The method according to claim 1, wherein advancing the elongate member comprises positioning the longitudinal contraction-restricted portion of the sleeve along a portion of the annulus at a posterior leaflet of the valve. 10. The method according to claim 1, wherein advancing the elongate member into the lumen comprises advancing the elongate member into the lumen while the elongate contraction-restricting element is radially compressed, and allowing the elongate contraction-restricting element to radially expand within the sleeve. 11. The method according to claim 10, wherein advancing the elongate member into the lumen comprises advancing, into the lumen, a tube in which the elongate member is disposed, and thereafter retracting the tube so as to expose successive portions of the elongate member, andwherein allowing the elongate contraction-restricting element to radially expand within the sleeve comprises exposing the contraction-restricting element by retracting the tube. 12. The method according to claim 1, wherein contracting comprises contracting the contractible portion of the sleeve, while the contraction-restricting element restricts contraction of the contraction-restricted portion of the sleeve while facilitating radial movement of the contraction-restricted portion of the sleeve. 13. The method according to claim 1, wherein advancing the elongate member into the lumen comprises advancing, into the lumen, a tube in which the elongate member is disposed, and thereafter retracting the tube so as to expose successive portions of the elongate member. 14. The method according to claim 1, wherein advancing the elongate member into the lumen comprises advancing the elongate member through an opening at a proximal end of the lumen, andwherein the method further comprises, after advancing the elongate member into the lumen, closing the opening. 15. The method according to claim 1, wherein anchoring the annuloplasty structure to the annulus comprises deploying, from within the sleeve, the plurality of tissue anchors through a wall of the sleeve into cardiac tissue. 16. A method comprising performing the following steps during a transcatheter procedure: positioning an annuloplasty structure along an annulus of an atrioventricular valve of a subject, the annuloplasty structure including a sleeve having a lumen and a longitudinal axis;anchoring the annuloplasty structure to the annulus using a plurality of tissue anchors;after the anchoring, advancing an elongate member into the lumen and along the longitudinal axis of the sleeve, such that (a) an elongate contraction-restricting element of the elongate member occupies a longitudinal contraction-restricted portion of the sleeve, and (b) the elongate member is disposed entirely within the sleeve; andthereafter, contracting a contractible portion of the sleeve, while the contraction-restricting element restricts contraction of the contraction-restricted portion of the sleeve. 17. The method according to claim 16, wherein the elongate member further includes one or more elongate contraction-facilitating elements disposed longitudinally adjacent to the contraction-restricting element,wherein advancing the elongate member into the lumen comprises advancing the elongate member into the lumen, such that the one or more elongate contraction-facilitating elements occupy one or more respective portions of the contractible portion of the sleeve, andwherein contracting the contractible portion of the sleeve comprises contracting the one or more contraction-facilitating elements. 18. The method according to claim 16, wherein the elongate member includes a coiled element, which includes the contraction-restricting element, and wherein advancing the elongate member comprises advancing the coiled element into the lumen. 19. The method according to claim 16, wherein advancing the elongate member into the lumen comprises advancing the elongate member into the lumen while the elongate contraction-restricting element is radially compressed, and allowing the elongate contraction-restricting element to radially expand within the sleeve. 20. The method according to claim 16, wherein advancing the elongate member into the lumen comprises advancing, into the lumen, a tube in which the elongate member is disposed, and thereafter retracting the tube so as to expose successive portions of the elongate member. 21. The method according to claim 16, wherein anchoring the annuloplasty structure to the annulus comprises deploying, from within the sleeve, the plurality of tissue anchors through a wall of the sleeve into cardiac tissue. 22. A method comprising performing the following steps during a transcatheter procedure: advancing an annuloplasty structure into a body of a subject, the annuloplasty structure including a sleeve having a lumen and a longitudinal axis;thereafter, positioning the annuloplasty structure along an annulus of an atrioventricular valve of a subject;anchoring the annuloplasty structure to the annulus using a plurality of tissue anchors;separately from the anchoring, advancing an elongate member into the lumen and along the longitudinal axis of the sleeve, such that (a) an elongate contraction-restricting element of the elongate member occupies a longitudinal contraction-restricted portion of the sleeve, and (b) the elongate member is disposed entirely within the sleeve; andthereafter, contracting a contractible portion of the sleeve, while the contraction-restricting element restricts contraction of the contraction-restricted portion of the sleeve,wherein the elongate member is not within the sleeve during the advancing of the annuloplasty structure into the body of the subject. 23. The method according to claim 22, wherein the elongate member further includes one or more elongate contraction-facilitating elements disposed longitudinally adjacent to the contraction-restricting element,wherein advancing the elongate member into the lumen comprises advancing the elongate member into the lumen, such that the one or more elongate contraction-facilitating elements occupy one or more respective portions of the contractible portion of the sleeve, andwherein contracting the contractible portion of the sleeve comprises contracting the one or more contraction-facilitating elements. 24. The method according to claim 22, wherein the elongate member includes a coiled element, which includes the contraction-restricting element, and wherein advancing the elongate member comprises advancing the coiled element into the lumen. 25. The method according to claim 22, wherein advancing the elongate member into the lumen comprises advancing the elongate member into the lumen while the elongate contraction-restricting element is radially compressed, and allowing the elongate contraction-restricting element to radially expand within the sleeve. 26. The method according to claim 22, wherein advancing the elongate member into the lumen comprises advancing, into the lumen, a tube in which the elongate member is disposed, and thereafter retracting the tube so as to expose successive portions of the elongate member. 27. The method according to claim 22, wherein anchoring the annuloplasty structure to the annulus comprises deploying, from within the sleeve, the plurality of tissue anchors through a wall of the sleeve into cardiac tissue. 28. The method according to claim 1, wherein the elongate contraction-restricting element includes an element selected from the group consisting of: a tube, a stent shaped so as to define a stent lumen, and a rod. 29. The method according to claim 16, wherein the elongate contraction-restricting element includes an element selected from the group consisting of: a tube, a stent shaped so as to define a stent lumen, and a rod. 30. The method according to claim 22, wherein the elongate contraction-restricting element includes an element selected from the group consisting of: a tube, a stent shaped so as to define a stent lumen, and a rod.
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