Peter E Hammer

US Patent:

20130274874, Oct 17, 2013

Filed:

Dec 29, 2011

Appl. No.:

13/996567

Inventors:

Peter Hammer - Needham MA, US

Assignee:

CHILDREN'S MEDICAL CENTER CORPORATION - Boston MA

International Classification:

A61F 2/24

US Classification:

623 219, 623 212

Abstract:

A leaflet including fibers oriented at an angle relative to at least one free edge of the leaflet. A leaflet comprising mechanisms for increasing coaptation height, preventing billowing, and reducing stress in critical regions of the leaflet. A prosthetic heart valve, including three leaflets operatively attached together. A method of using a prosthetic heart valve, by applying pressure to the valve, forming a pocket with material of three leaflets operatively attached together and increasing coaptation height, reducing billowing of the leaflets toward a ventricle, and reducing stress in critical regions of the leaflet. A chorded valve including at least one leaflet, wherein bundles of fibers exit said free edges as tethers and can be anchored to tissue. A method of using the chorded valve, by anchoring the tethers to tissue, forming a pocket with the material of leaflets and increasing coaptation height, and reducing billowing of leaflets toward an atrium.

US Patent:

20210205492, Jul 8, 2021

Filed:

Jan 11, 2021

Appl. No.:

17/146464

Inventors:

- Boston MA, US
Nikolay V. Vasilyev - Brookline MA, US
Haruo Yamauchi - Tokyo, JP
Douglas P. Perrin - Boston MA, US
Peter E. Hammer - Needham MA, US
Veaceslav Arabagi - Cambridge MA, US
Jeffrey M. Karp - Brookline MA, US
Yuhan Lee - Cambridge MA, US
Eoin D. O'Cearbhaill - Cambridge MA, US

Assignee:

Children's Medical Center Corporation - Boston MA
The Brigham and Women's Hospital, Inc. - Boston MA

International Classification:

A61L 27/16
A61B 17/70
A61F 2/24
A61F 2/28
A61L 27/18
A61L 27/58
B29C 67/24
C08G 63/16
C08G 63/91

Abstract:

An implantable, autonomously growing medical device is disclosed. The device may have an outer, braided outer element that holds an inner core. Degradation and/or softening of the inner core permits the outer element to elongate, allowing the device to grow with surrounding tissue. The growth profile of the medical device can be controlled by altering the shape/material/cure conditions of the inner core, as well as the geometry of the out element.

US Patent:

20200368017, Nov 26, 2020

Filed:

Nov 16, 2018

Appl. No.:

16/764763

Inventors:

- Boston MA, US
- Cambridge MA, US
Peter E. Hammer - Needham MA, US
Christopher Payne - Cambridge MA, US

Assignee:

Children's Medical Center Corporation - Boston MA
President and Fellows of Harvard College - Cambridge MA
Massachusetts Institute of Technology - Cambridge MA

International Classification:

A61F 2/24

Abstract:

A replacement heart valve device is disclosed. In some embodiments, the device includes a frame coupled to one or more leaflets that are moveable between open and closed configurations. In some embodiments, the frame comprises at least two frame sections that join at a pair of commissural posts. In some embodiments, the device may be geometrically accommodating to adapt to different vasculature shapes and sizes and/or to be able to change size while implanted within a growing patient.

US Patent:

20200360135, Nov 19, 2020

Filed:

Jun 2, 2020

Appl. No.:

16/890905

Inventors:

- Boston MA, US
- Cambridge MA, US
Peter E. Hammer - Needham MA, US
Christopher Payne - Cambridge MA, US

Assignee:

Children's Medical Center Corporation - Boston MA
President and Fellows of Harvard College - Cambridge MA
Massachusetts Institute of Technology - Cambridge MA

International Classification:

A61F 2/24

Abstract:

A replacement heart valve device is disclosed. In some embodiments, the device includes a frame coupled to one or more leaflets that are moveable between open and closed configurations. In some embodiments, the frame comprises at least two frame sections that join at a pair of commissural posts. In some embodiments, the device may be geometrically accommodating to adapt to different vasculature shapes and sizes and/or to be able to change size while implanted within a growing patient.

US Patent:

20200345326, Nov 5, 2020

Filed:

Oct 15, 2018

Appl. No.:

16/755015

Inventors:

- Boston MA, US
Peter E. HAMMER - Needham MA, US

International Classification:

A61B 8/08
A61B 5/02
A61B 1/07
A61B 8/12
A61B 8/00
A61B 5/107
A61B 1/00
A61B 5/00

Abstract:

Methods, systems, and coaptation measurement devices as described herein include an elongate sensor body at the end of a proximal connecting member, and a plurality of sensors in an array across a face of the sensor body, wherein each sensor of the plurality of sensors is configured to detect if a portion of a heart valve is in contact with the sensor.

US Patent:

20200054785, Feb 20, 2020

Filed:

Feb 16, 2017

Appl. No.:

16/077787

Inventors:

- Boston MA, US
Nikolay V Vasilyev - Newton MA, US
Haruo Yamauchi - Boston MA, US
Douglas P Perrin - Boston MA, US
Peter Hammer - Needham MA, US
Veaceslav Arabagi - Cambridge MA, US
Jeffrey M. Karp - Brookline MA, US
Yuhan Lee - Cambridge MA, US
Eoin D O'Cearbhaill - Co Dublin, IE

Assignee:

Children's Medical Center Corporation - Boston MA
The Brigham and Women's Hospital, Inc. - Boston MA

International Classification:

A61L 27/16
A61F 2/24
A61B 17/70
A61F 2/28
A61L 27/18
A61L 27/58
C08G 63/91
C08G 63/16
B29C 67/24

Abstract:

An implantable, autonomously growing medical device is disclosed. The device may have an outer, braided outer element that holds an inner core. Degradation and/or softening of the inner core permits the outer element to elongate, allowing the device to grow with surrounding tissue. The growth profile of the medical device can be controlled by altering the shape/material/cure conditions of the inner core, as well as the geometry of the outer element.

US Patent:

20170156854, Jun 8, 2017

Filed:

Jul 12, 2016

Appl. No.:

15/208343

Inventors:

- Boston MA, US
Peter Hammer - Needham MA, US

Assignee:

Children's Medical Center Corporation - Boston MA

International Classification:

A61F 2/24

Abstract:

A leaflet including fibers oriented at an angle relative to at least one free edge of the leaflet. A leaflet including mechanisms for increasing coaptation height, preventing billowing, and reducing stress in critical regions of the leaflet. A prosthetic heart valve, including three leaflets operatively attached together. A method of using a prosthetic heart valve, by applying pressure to the valve, forming a pocket with material of three leaflets operatively attached together and increasing coaptation height, reducing billowing of the leaflets toward a ventricle, and reducing stress in critical regions of the leaflet. A chorded valve including at least one leaflet, wherein bundles of fibers exit said free edges as tethers an can be anchored to tissue. A method of using the chorded valve, by anchoring the tethers to tissue, forming a pocket with the material of leaflets and increasing coaptation height, and reducing billowing of leaflets toward an atrium.