Evertable sheath devices, systems, and methods
First Claim
Patent Images
1. A medical device delivery system comprising:
- an elongate member having proximal and distal ends;
a medical device having proximal and distal ends; and
an inverted sheath having a delivery profile and a deployment profile, a proximal end and a distal end;
wherein the medical device is located about the distal end of the elongate member with the inverted sheath in the delivery profile disposed about the medical device,wherein when the inverted sheath is transitioned to the deployment profile, the medical device can be deployed without requiring further eversion of the inverted sheath,wherein the inverted sheath comprises an inner layer and an outer layer defining a chamber, andwherein pressurization of the chamber by introducing a fluid into the chamber causes the inverted sheath to evert and causes the transition from the delivery profile to the deployment profile wherein the inverted sheath has an expanded diameter and a shortened length in the deployment profile relative to the delivery profile.
1 Assignment
0 Petitions
Accused Products
Abstract
The present disclosure comprises devices, systems, and methods having an inverted sheath configured to cover, and in some instances constrain, a medical device and to retract through eversion, thus enabling the deployment of medical device at the treatment site. A constraining sheath can evert hydraulically. A constraining sheath can be configured to neck down a medical device to achieve a lower delivery profile. Furthermore, a constraining sheath can comprise a balloon to expand or positionally or structurally adjust a medical device.
-
Citations
17 Claims
-
1. A medical device delivery system comprising:
-
an elongate member having proximal and distal ends; a medical device having proximal and distal ends; and an inverted sheath having a delivery profile and a deployment profile, a proximal end and a distal end; wherein the medical device is located about the distal end of the elongate member with the inverted sheath in the delivery profile disposed about the medical device, wherein when the inverted sheath is transitioned to the deployment profile, the medical device can be deployed without requiring further eversion of the inverted sheath, wherein the inverted sheath comprises an inner layer and an outer layer defining a chamber, and wherein pressurization of the chamber by introducing a fluid into the chamber causes the inverted sheath to evert and causes the transition from the delivery profile to the deployment profile wherein the inverted sheath has an expanded diameter and a shortened length in the deployment profile relative to the delivery profile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A medical device delivery system comprising:
-
an elongate member having proximal and distal ends; a medical device having proximal and distal ends; and an inverted sheath having a delivery profile and a deployment profile; wherein the medical device is located about the distal end of the elongate member with the inverted sheath in the delivery profile disposed about the medical device, wherein when the inverted sheath is transitioned to the deployment profile, the medical device is completely uncovered, wherein the inverted sheath comprises an inner layer and an outer layer defining a chamber, and wherein pressurization of the chamber by introducing a fluid into the chamber causes the inverted sheath to evert and causes the transition from the delivery profile to the deployment profile wherein the inverted sheath has an expanded diameter and a shortened length in the deployment profile relative to the delivery profile.
-
-
17. A medical device delivery system comprising:
-
an elongate member having proximal and distal ends; a medical device having proximal and distal ends; and an inverted sheath having a delivery profile and a deployment profile; wherein the medical device is located about the distal end of the elongate member with the inverted sheath in the delivery profile disposed about the medical device, wherein when the inverted sheath is transitioned to the deployment profile, the inverted sheath is no longer disposed about the medical device, wherein the inverted sheath comprises an inner layer and an outer layer defining a chamber, and wherein pressurization of the chamber by introducing a fluid into the chamber causes the inverted sheath to evert and causes the transition from the delivery profile to the deployment profile wherein the inverted sheath has an expanded diameter and a shortened length in the deployment profile relative to the delivery profile.
-
Specification