Tissue puncture closure device with limited force auto compaction
AssigneeTerumo Puerto Rico, L.L.C.
InventorTroy T. White
Life of this patent
Estimating the term…
Abstract
A closure device (200) includes a filament (204), an anchor (208), a sealing pad (210), and an automatic driving mechanism. The anchor is configured to be inserted through the tissue wall puncture and is attached to the filament at the second end of the closure device. The sealing pad is slidingly attached to the filament at the second end of the closure device. The automatic driving mechanism includes a compaction member (212), at least one slide member (230, 232) at the first end of the closure device, and a biasing member (234). The biasing member is carried by the at least one slide member and operable to distally advance the compaction member for automatically compacting the sealing pad toward the anchor upon withdrawal of the closure device from the internal tissue wall puncture.
Claims17
A tissue puncture closure device for partial insertion into and sealing of an internal tissue wall puncture, comprising:
- (a) a filament extending from a first end of the closure device to a second end of the closure device;
- (b) an anchor for insertion through the tissue wall puncture attached to the filament at the second end of the closure device;
- (c) a sealing pad slidingly attached to the filament at the second end of the closure device;
- (d) an automatic driving mechanism comprising:
- (i) a compaction member;
- (ii) at least one slide member at the first end of the closure device;
- (iii) a biasing member carried by the at least one slide member and operable to distally advance the compaction member for automatically compacting the sealing pad toward the anchor upon withdrawal of the closure device from the internal tissue wall puncture;
- and
- (e) a housing positioned at the first end of the closure device, the at least one slide member including a first slide positioned in and movable relative to the housing;
- wherein the automatic driving mechanism further comprises a filament spool with a portion of the filament wound thereon, the filament spool being carried by the first slide.
A tissue puncture closure device for partial insertion into and sealing of a tissue puncture in an internal tissue wall, comprising:
- (a) an anchor configured for positioning on a distal side of the internal tissue wall;
- (b) a sealing pad configured for positioning on a proximal side of the internal tissue wall;
- (c) a filament connected at a distal end to the anchor and sealing pad for slidably cinching the anchor and sealing pad together about the tissue puncture, the sealing pad being slidably disposed on the filament proximal to the anchor;
- (d) a compaction member disposed on the filament;
- (e) a housing arranged proximal of the anchor and sealing pad;
- (f) a storage spool positioned in the housing onto which a proximal end of the filament is wound;
- (g) a biasing member positioned in the housing and automatically activated to drive the compaction member along the filament distally towards the sealing pad upon withdrawal of the tissue puncture closure device;
- (h) a first slide member positioned in and movable relative to the housing, at least the storage spool and biasing member being carried by the first slide member.
Dependencies are inferred from the claim text.