Buttoned device for the transvenous occlusion of intracardiac defects

• US 4,917,089 A
• Filed: 08/29/1988
• Issued: 04/17/1990
• Est. Priority Date: 08/29/1988
• Status: Expired due to Term

• Current Assignee: Eleftherios B. Sideris
• Original Assignee: Eleftherios B. Sideris
• Inventors: Sideris, Eleftherios B.
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US07/237,953
• Time in Patent Office: 596 Days
• Field of Search: 128/334 R, 128/334 C, 128/325, 128/899, 623/1, 623/12
• US Class Current: 606/215
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor

Abstract

A transcatheter occluding intracardiac defect device comprises a folding poly-urethane foam with Teflon coated wire skeleton, introducible into a long vascular sheath and automatically unfolded upon delivery in the distal to the defect cardiac chamber. A two mm string loop is attached to the center of the occluder, while the loop is closed by a 1 mm knot. A loading wire comprises a Teflon hollow wire and a double mono-filament thread which carries the occluder on the one end and is tied on the other end. An occluder-holder comprises a rhomboid poly-urethane foam with Teflon coated wire skeleton and a "rubber" piece sutured in the center. The occluder-holder is advanced over the loading wire axis and through the long sheath in the proximal to the defect cardiac chamber and is pushed against the occluder till it is securely buttoned. The distal end of the loading wire is cut and the hollow wire is pulled out over the double thread. The thread is pulled as a single strand and therefore the device is released.

Claims

1. An intracardiac percutaneously deliverable device for the repair of heart defects comprising:

a. an occluder, said occluder including;

i. a foldable foam polyurethane disc with

ii. a Teflon coated wire skeleton in the form of an "X" sutured to the foam disc, and

iii. a thread sutured to the center of the wire skeleton,

iv. said thread formed into a loop with

v. a knot closing the loop remote from the skeleton,

b. an occluder-holder, said occluder-holder including;

i. a foldable foam polyurethane rhomboid disc with

ii. a single wire skeleton sutured to the rhomboid disc, and

iii. a rubber piece sutured at the center of the rhomboid disc,

c. a loading wire including;

i. a Teflon coated hollow wire, and

ii. a long thread,

d. said loading wire pierced through an opening in the occluder-holder and its rubber piece,

e. said long thread extending

i. through the hollow wire,

ii. through the thread loop at the occluder, and

iii. back through the hollow wire;

f. so arranged and constructed that

i. the occluder-holder may be pushed toward the occluder and

ii. pulling on the loading wire will pull the knot through the rubber piece on the occluder-holder thereby

iii. buttoning the occluder-holder to the occluder.

2. The process of occluding a defect in a heart in which

a. an occluder is placed on one side of the defect and and

b. an occluder-holder is placed on the other side of the defect;

c. wherein an improved method of connecting the occluder and occluder-holder comprises;

d. before placing the occluder in the heart

i. attaching a loop of thread to the occluder,

ii. knotting the loop, and

iii. piercing the occluder-holder,

e. then after placing the occluder and occluder-holder in place

i. pulling the knot through the pierced occluder-holder thereby

ii. buttoning the occluder to the occluder-holder.

3. The invention as described in claim 2:

wherein

f. said occluder-holder is pierced by a loading wire which

g. is used to place the occluder-holder,

h. then after the occluder holder is buttoned to the occluder;

i. cutting the loading wire,

ii. removing the loading wire, and

iii. removing a long doubled thread extending through the loop on the occluder by

iv. pulling one end of said doubled thread.