CATHETER SYSTEM FOR INTRODUCING AN EXPANDABLE HEART VALVE STENT INTO THE BODY OF A PATIENT, INSERTION SYSTEM WITH A CATHETER SYSTEM AND MEDICAL DEVICE FOR TREATMENT OF A HEART VALVE DEFECT

• US 20170049568A1
• Filed: 07/28/2016
• Published: 02/23/2017
• Est. Priority Date: 05/20/2010
• Status: Active Grant

• Current Assignee: JenaValve Technology, Inc.
• Original Assignee: JenaValve Technology, Inc.
• Inventors: STRAUBINGER, Helmut, MAYER, Arnulf, JUNG, Johannes
• Granted Patent: US 11,278,406 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61M 2025/09141 made of shape memory alloys which take a particular shape at a certain temperature

Abstract

The invention relates to catheter system for introducing an expandable heart valve stent (150) into the body of a patient, the catheter system comprising: a catheter tip (10) having a seat portion for accommodating the stent (150) in its collapsed state and a stent holder (15) for releasably fixing the stent (150), wherein the seat portion is constituted by a first sleeve-shaped member (11) and a second sleeve-shaped member (21), said sleeve-shaped members (11, 21) being moveable relative to each other and relative to the stent holder (15), and a catheter shaft (30) for connecting the catheter tip (10) to a handle (70). The catheter shaft (30) comprising: first force transmitting means (31) connected to the first sleeve-shaped member (11), second force transmitting means (41) connected to the second sleeve-shaped member (21) and a distal end section connectable to second operating means (81) of the handle (70), and guiding means (51) having a passageway extending there between, wherein the first and second force transmitting means (31, 41) are at least partly received within the passageway such as to be moveable relative to the guiding means (51), and wherein the proximal end of the guiding means (51) terminates distal to the catheter tip (10).

Claims

1. A catheter system (1) for introducing a self-expandable heart valve stent (150) into the body of a patient, the catheter system (1) comprising:

A catheter tip (10) having a seat portion for accommodating the stent (150) in its collapsed state and a stent holder (15) for releasably fixing the stent (150), wherein the seat portion is constituted by a first sleeve-shaped member (11) and a second sleeve-shaped member (21), wherein the sleeve-shaped members (11,21) are moveable relative to each other and relative to the stent holder (15); and

a catheter shaft (30) for connecting the catheter tip (10) to a handle (70), the catheter shaft (30) comprising;

first force transmitting means (31) with a distal end section connected to the first sleeve-shaped member (11) and a proximal end section connectable to the first operating means (71) of the handle (70);

second force transmitting means (41) with a distal end section connected to the second sleeve-shaped member (21) and a proximal end section connectable to second operating means (81) of the handle (70), and

guiding means (51) having a guiding tube (52) with a passageway extending there between,

wherein the first and second force transmitting means (31, 41) are at least partly received within the passageway such as to be moveable relative to the guiding tube (52); and

wherein the distal end of the guiding tube (52) terminates proximal to the catheter tip (10) and wherein the guiding tube (52) has a cross-section less than the cross-section of the catheter tip (10).

2-15. -15. (canceled)