Method for guiding a medical device

• US 8,241,274 B2
• Filed: 09/30/2009
• Issued: 08/14/2012
• Est. Priority Date: 01/19/2000
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Keogh, James R., Ryan, Timothy R., Eberhardt, Carol E., Stewart, Mark T., Skarda, James R., Laske, Timothy G., Hill, Alexander J., Lemmon, Jack D., Francischelli, David E.
• Primary Examiner(s): GIBSON, ROY DEAN
• Application Number:
  US12/570,888
• Publication Number:
  US 20100198346A1
• Time in Patent Office: 1,049 Days
• Field of Search: 606 27- 31, 606/32, 606/34, 623 21- 219, 623/2.36
• US Class Current: 606/32
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/22098 Decalcification of valves
• CPC Class Codes: A61B 2018/00291 using suction
• CPC Class Codes: A61B 2018/00351 Heart
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2063 Acoustic tracking systems, e.g. using ultrasound
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 2090/397 electromagnetic other than visible, e.g. microwave
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 5/0044 for the heart
• CPC Class Codes: A61B 5/1076 for measuring dimensions inside body cavities, e.g. using catheters A61B3/1005 takes precedence
• CPC Class Codes: A61B 5/6853 with a balloon
• CPC Class Codes: A61B 8/445 Details of catheter construction
• CPC Class Codes: A61B 90/37 Surgical systems with images on a monitor during operation
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2496 Devices for determining the dimensions of the prosthetic valve to be implanted, e.g. templates, sizers
• CPC Class Codes: A61F 2210/009 magnetic
• CPC Class Codes: A61F 2250/0096 : Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
• CPC Class Codes: A61N 7/02 : Localised ultrasound hyperthermia hyperthermia in general A61F7/00

Abstract

A device and method for valve replacement or valve repair is disclosed comprising the steps of acquiring an anatomical image of a patient, correlating the image to the patient, guiding a valve replacement delivery member or a valve repair delivery member within the patient while tracking the position of the delivery member in the patient, positioning the valve replacement member or valve repair member in a desired position to place a valve or repair valve and removing the delivery member from the patient. In one aspect of the invention, a delivery system is provided for percutaneous delivery of a heart valve to a predetermined position in the heart of a patient, where the delivery system itself includes features that allow it to be accurately positioned in the heart. In another aspect of the invention, a delivery system is provided for percutaneous repair of a heart valve in the heart of a patient, where the repair system itself includes features that allow it to be accurately positioned in the heart. In another aspect of the invention, a method and device are provided that involve imaging a native root using an interoperative technique, then introducing a device that is easily visualized in a chosen imaging modality.

Claims

1. A method of performing a cardiac valve replacement procedure within a patient, comprising:

providing a valve replacement delivery system having one or more ferromagnetic elements;

acquiring a real-time image of the valve replacement delivery system within the patient;

providing an external magnetic field and guiding at least a portion of the valve replacement delivery system into a desired position within the patient by driving the ferromagnetic elements with the external magnetic field based on the real-time image; and

implanting a valve within the patient with the valve replacement delivery system.

2. A method of performing a cardiac valve repair procedure within a patient, comprising:

providing a valve repair delivery system having one or more ferromagnetic elements;

acquiring a real-time image of the valve repair delivery system within the patient;

providing an external magnetic field and guiding at least a portion of the valve repair delivery system into a desired position within the patient by driving the ferromagnetic element with an external magnetic field based on the real-time image; and

repairing a valve within the patient with the valve repair delivery system.