Vascular opening edge eversion methods and apparatuses
First Claim
Patent Images
1. A tissue eversion device, comprising:
- a) a delivery sheath having a distal end;
b) a tissue engaging element extending from a proximal end to the distal end of the delivery sheath, the tissue engaging element having a plurality of elongated members extending distally from the proximal end of the delivery sheath each having a tissue penetrating feature, the tissue engaging element has a first configuration wherein it is contained within the delivery sheath and a second configuration wherein each of the tissue penetrating feature extends distally beyond the distal end of an outer surface of the delivery sheath, wherein in the second configuration an intermediate portion of each elongate member extends distally from the distal end of the delivery sheath towards a longitudinal midline of the delivery sheath with an end portion of the intermediate portion being closer to the longitudinal midline than an end portion of the elongate member adjacent the distal end of the delivery sheath, and a curved end portion, extending from the end portion of the intermediate portion of each elongate member, is curled outwardly from the intermediate portion and then towards the longitudinal midline of the delivery sheath to terminate at a location spaced apart from the intermediate portion and form an open curved portion.
2 Assignments
0 Petitions
Accused Products
Abstract
Tissue eversion apparatuses and methods suitable for use, as examples, with vascular closure devices. The tissue eversion apparatuses comprise a tissue engaging element, disposed within a delivery sheath. The delivery sheath protects the tissue engaging element and the surrounding tissue during use. The tissue engaging element can extend from the sheath and engage the tissue near an aperture in a tissue wall. Motion of the tissue engaging element away from the tissue can urge the tissue wall near the aperture to evert from the tissue wall, allowing, as examples, aperture closure apparatuses and methods to be conveniently employed.
-
Citations
19 Claims
-
1. A tissue eversion device, comprising:
-
a) a delivery sheath having a distal end; b) a tissue engaging element extending from a proximal end to the distal end of the delivery sheath, the tissue engaging element having a plurality of elongated members extending distally from the proximal end of the delivery sheath each having a tissue penetrating feature, the tissue engaging element has a first configuration wherein it is contained within the delivery sheath and a second configuration wherein each of the tissue penetrating feature extends distally beyond the distal end of an outer surface of the delivery sheath, wherein in the second configuration an intermediate portion of each elongate member extends distally from the distal end of the delivery sheath towards a longitudinal midline of the delivery sheath with an end portion of the intermediate portion being closer to the longitudinal midline than an end portion of the elongate member adjacent the distal end of the delivery sheath, and a curved end portion, extending from the end portion of the intermediate portion of each elongate member, is curled outwardly from the intermediate portion and then towards the longitudinal midline of the delivery sheath to terminate at a location spaced apart from the intermediate portion and form an open curved portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A tissue eversion device, comprising:
-
a) a delivery sheath having a distal end; b) a plurality of elongated members extending distally from a proximal end of the delivery sheath to the distal end and each having a tissue penetrating feature, each elongated member of the plurality of elongated members has a first configuration wherein it is contained within the delivery sheath and a second configuration where the elongated member extends distally beyond the distal end of the outer surface of the delivery sheath, wherein in the second configuration an intermediate portion of each elongate member extends distally from the distal end of the delivery sheath towards a longitudinal midline of the delivery sheath with an end portion of the intermediate portion being closer to the longitudinal midline than an end portion of the elongate member adjacent the distal end of the delivery sheath, and a curved end portion of the intermediate portion of each elongate member is curled outwardly from and then towards the longitudinal midline of the delivery sheath to terminate at a location spaced apart from the intermediate portion and form an open curved portion, the intermediate portion being proximal to the curved end portion curling outwardly from the longitudinal midline of the delivery sheath. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
-
Specification