Sensors for prosthetic heart devices

• US 10,537,287 B2
• Filed: 10/06/2017
• Issued: 01/21/2020
• Est. Priority Date: 08/18/2014
• Status: Active Grant

• Current Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Inventors: Braido, Peter N., Fahim, Mina S., Anderl, Steven Frederick, White, Jason, Ashworth, Paul E., Low, Morgan, Moon, Loell Boyce, Saikrishnan, Neelakantan
• Primary Examiner(s): Baria, Dinah
• Application Number:
  US15/726,612
• Publication Number:
  US 20180042555A1
• Time in Patent Office: 837 Days
• 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 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00632 Occluding a cavity, i.e. closing a blind opening
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 5/02 Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
• CPC Class Codes: A61B 5/02028 Determining haemodynamic parameters not otherwise provided for, e.g. cardiac contractility or left ventricular ejection fraction
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/02158 provided with two or more sensor elements
• CPC Class Codes: A61B 5/026 Measuring blood flow A61B3/1233, A61B3/1241 take precedence
• CPC Class Codes: A61B 5/6847 mounted on an invasive device
• CPC Class Codes: A61B 5/6858 with a distal basket, e.g. expandable basket
• CPC Class Codes: A61B 5/6862 Stents
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2448 D-shaped rings
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2/2472 Devices for testing
• CPC Class Codes: A61F 2/844 : folded prior to deployment
• CPC Class Codes: A61F 2210/0066 : shrinkable
• CPC Class Codes: A61F 2220/0016 : with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0075 : sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/0008 : elliptical or oval
• CPC Class Codes: A61F 2230/0034 : D-shaped
• CPC Class Codes: A61F 2230/0065 : toroidal, e.g. ring-shaped, doughnut-shaped
• CPC Class Codes: A61F 2250/0002 : for data transfer
• CPC Class Codes: A61F 2250/0004 : adjustable
• CPC Class Codes: A61F 2250/001 : for adjusting a diameter
• CPC Class Codes: A61F 2250/0063 : Nested prosthetic parts
• CPC Class Codes: A61F 2250/0065 : telescopic

Abstract

Prosthetic heart devices may be implanted into the heart with a sensor coupled to the device, the sensor being configured to measure physiological data, such as blood pressure, in the heart. Devices that may employ such sensors include prosthetic heart valves and occlusion devices, although sensor systems may be deployed in the heart separate from other implantable devices. The sensors may include a body with different configurations for attaching to the implantable device, such as apertures for sutures or fingers for connecting to structures of the implantable device. The sensors may provide data that allow a determination of aortic regurgitation or other information indicative of function of the implantable device and patient health during and after implantation of the device.

Claims

1. A prosthetic heart valve system comprising:

a prosthetic heart valve including;

a stent extending from an outflow portion to an inflow portion and having an expanded condition and a collapsed condition; and

a valve assembly mounted to the stent;

a sensor configured to measure physiological data, the sensor including a body;

a first finger formed of shape memory material and having a first end attached to the body and a free end, the free end being configured to hook over at least one strut of the stent to attach the sensor to the stent; and

a second finger formed of shape memory material and having a first end attached to the body and a free end, the free end of the first finger and the free end of the second finger forming a gap therebetween,

wherein the first finger and the second finger have a pre-set condition in the absence of applied force in which the gap is a first distance, and a stressed condition in which the gap is a second distance, the second distance greater than the first distance.

2. The prosthetic heart valve system of claim 1, wherein the first finger is arcuate and the second finger is arcuate.

3. The prosthetic heart valve system of claim 1, wherein the first finger and second finger are formed as a unitary piece.

4. The prosthetic heart valve system of claim 1, wherein the first finger and second finger are formed as separate pieces.

5. The prosthetic heart valve system of claim 1, wherein the first finger and second finger are positioned parallel to a longitudinal axis of the body.

6. The prosthetic heart valve system of claim 1, wherein the stent includes a first collapsible and expandable cell and a second collapsible and expandable cell, the first cell attached to the second cell by a runner strut.

7. The prosthetic heart valve system of claim 6, wherein the runner strut has a length that is greater than the first distance of the gap and smaller than the second distance of the gap.