Scimed Life Systems, Inc.

Scott A Hoium

Hans G Mische

Jonathan C Sell

Charles R Lucht

Thomas J Wilke

Jon D Gamble

Thomas V Ressemann

Hans Alois Mische

A low profile inflation valve located inside a balloon catheter that enables a user to inflate the balloon and exchange other medical apparatus over the catheter while the balloon remains inflated. The low profile inflation valve of the present invention includes a first tube having a lumen and at least one region of decreased inner diameter, and a structure movably located inside the lumen of said first tube, wherein said region of decreased inner diameter of said first tube forms a seal with a portion of said structure. The present invention further includes a method of making a low profile inflation valve using a first and second tube comprising the steps of creating an aperture in at least one side of a second tube, placing the second tube inside a first tube, the first tube being made of thermoplastic material, applying heat to a localized area of the first tube, and compressing the first tube to form a region of reduced internal diameter, the reduced diameter forming a seal with the outside diameter of the second tube.

Low profile valve and method of making

A low profile inflation valve includes a first tube having a lumen and at least one region of decreased inner diameter, and a structure, which may be a tube, movably located inside the lumen. The region of decreased inner diameter of the first tube forms a seal with a portion of the structure. A method of making a low profile inflation valve using a first tube and second tube comprises the steps of creating an aperture in at least one side of the second tube; placing the second tube inside the first tube, the first tube being made of thermoplastic material; applying heat to a localized area of the first tube; and compressing the first tube to form a region of reduced internal diameter, the reduced diameter forming a seal with the outside diameter of the second tube.

Low profile valve and balloon catheter

A novel intravascular occlusion material removal device for removing vascular occlusion material in a vascular lumen comprises a prime mover and an expandable material removal element insertable intravascularly into the vascular lumen. A hollow drive shaft operatively connects the prime mover to the expandable material removal element for rotating the expandable material removal element intravascularly. A guidewire is insertable through the distal end of the expandable material removal element and the hollow drive shaft, and is shiftable within the drive shaft and the expandable material removal element. The expandable material removal element is expandable responsive to shifting of the guidewire. A material removal element movement control mechanism is operatively connected to the guidewire for positively incrementally shifting the guidewire, and a guidewire lock mechanism is operatively connected between the guidewire and the material removal element movement control mechanism for fixing the guidewire with respect to the material removal element movement control mechanism. A number of novel methods for removing vascular occlusion material are also provided. One such method comprises the steps of: providing a vascular occlusion material removal device having an expandable occlusion material removal element, the material removal element comprising a braid having a hollow interior; providing a guidewire; intravascularly navigating the guidewire to the occlusion material; inserting the guidewire into the hollow interior; intravascularly navigating the braid to the occlusion material over the guidewire; shifting the guidewire with respect to the braid to expand the braid; expanding the braid such that the braid bites into occlusion material thereby allowing occlusion material to pass into the hollow interior; and shifting the guidewire with respect to the braid to contract the braid and to capture occlusion material within the hollow interior. The expanded braid can also be rotated intravascularly to remove occlusion material.

Expandable intravascular occlusion material removal devices and methods

Growing community of inventors

Coon Rapids, MN, United States of America

Scott A Hoium