DAVID M WALSH
Architects in Reading, MA
License number
Massachusetts 6328
Issued Date
Oct 15, 1985
Expiration Date
Aug 31, 2017
Type
Architect
Address
Address
Reading, MA 01867
Professional information
David Walsh - Reading, MA
Work:
D3 Engineering Services
Engineering Consultant/Principal LAB Medical Manufacturing, Inc - Billerica, MA
Director of Research & Development FDA QSR
Director of Quality Assurance MedSource Technologies, LLC - Newton, MA
Senior Development/Project Engineer LAB Engineering & Manufacturing, Inc - N Billerica, MA
Engineering Manager CNC Milling
Manufacturing Engineer
Engineering Consultant/Principal LAB Medical Manufacturing, Inc - Billerica, MA
Director of Research & Development FDA QSR
Director of Quality Assurance MedSource Technologies, LLC - Newton, MA
Senior Development/Project Engineer LAB Engineering & Manufacturing, Inc - N Billerica, MA
Engineering Manager CNC Milling
Manufacturing Engineer
Education:
University of Massachusetts/Boston - Boston, MA
B.S. in Physics Universitt Freiburg - Germany
Physics
B.S. in Physics Universitt Freiburg - Germany
Physics
Skills:
Medical Device Engineering Management
Spinal Fixation Assembly With Intermediate Element
US Patent:
2011019, Aug 11, 2011
Filed:
Feb 10, 2010
Appl. No.:
12/703392
Inventors:
David A. Walsh - Reading MA, US
David S. Randol - Odessa FL, US
David S. Randol - Odessa FL, US
International Classification:
A61B 17/86
US Classification:
606305
Abstract:
A novel locking mechanism including a body and intermediate element and a method for locking the relative positions of a rod and a screw. The intermediate element is adapted to receive a rod and a head of a screw and is located between the rod and the head of the screw. The intermediate element has a non-circular shape such that at least one large non-contact area exists when the intermediate element is in contact with the head of the screw and the locking mechanism is fully engaged. The body is adapted to maintain the orientation of the non-circular intermediate element with respect to the body. The body also has at least one structure defining at least one distinct temporary stopping point for the intermediate element above the final locking position.
Dynamic Rod Assembly
US Patent:
2013009, Apr 11, 2013
Filed:
Sep 12, 2012
Appl. No.:
13/611700
Inventors:
David A. Walsh - Reading MA, US
International Classification:
A61B 17/70
US Classification:
606257, 606260
Abstract:
A dynamic rod assembly, such as that used for spinal stabilization, made of a number of interlocking segments whereby a limited amount of relative motion is permitted between each pair of adjacent segments. The dynamic rod assembly may also incorporate a separate central element that extends at least partially through a central channel within the interlocking segments to prevent the interlocking segments from disengaging while adding to the desired bending properties of the dynamic rod assembly.
Spinal Fixation Assembly
US Patent:
2010015, Jun 17, 2010
Filed:
Jul 26, 2007
Appl. No.:
11/816806
Inventors:
David A. Walsh - Reading MA, US
Carl Arthur Knobloch - Oviedo FL, US
Daniel R. Baker - Seattle WA, US
Carl Arthur Knobloch - Oviedo FL, US
Daniel R. Baker - Seattle WA, US
Assignee:
Biotechni America Spine Group, Inc. - Palm Harbor FL
International Classification:
A61B 17/86
US Classification:
606308, 606305
Abstract:
A locking mechanism () and method of fixation, such as the fixation of a fixation device () like a bone screw and of a rod () to the spine. The locking mechanism () includes a body (), an insert (), a rod seat () and a set screw. The body () includes a bottom portion (114) configured to receive the fixation device () and the insert () but prevents the insert () and fixation device () from passing therethrough once the insert () and fixation device () are engaged. The body () further includes a side portion (120) configured to receive the rod (). Between the rod () and the insert () is a rod seat ().
Spinal Fixation Assembly
US Patent:
2010016, Jun 24, 2010
Filed:
Jul 26, 2007
Appl. No.:
11/816802
Inventors:
David A. Walsh - Reading MA, US
Karl Arthur Knobloch - Oviedo FL, US
Daniel R. Baker - Seattle WA, US
Karl Arthur Knobloch - Oviedo FL, US
Daniel R. Baker - Seattle WA, US
International Classification:
A61B 17/86
US Classification:
606308
Abstract:
A locking mechanism () and method of fixation, such as the fixation of a fixation device () like a bone screw and of a rod () to the spine. The locking mechanism () includes a body (), an insert (), a rod seat () and a set screw. The body () includes a bottom portion () configured to receive the fixation device () and the insert () but prevents the insert () and fixation device () from passing therethrough once the insert () and fixation device () are engaged. The body () further includes a side portion () configured to receive the rod (). Between the rod () and the insert () is a rod seat ().
Locking Mechanism With Two-Piece Washer
US Patent:
8157846, Apr 17, 2012
Filed:
Jul 24, 2008
Appl. No.:
12/179136
Inventors:
David S. Randol - Odessa FL, US
David A. Walsh - Reading MA, US
David A. Walsh - Reading MA, US
Assignee:
Ingenium S.A. - Panama
International Classification:
A61B 17/70
US Classification:
606279, 606268
Abstract:
Locking mechanisms and methods of fixation, such as the fixation of a fixation device like a bone screw and of a rod to the spine. The locking mechanism includes a body, a rod seat and a set screw. The rod seat is configured to separate into two pieces when the rod exerts force on the top portion of the washer and the set screw limits movement of the washer toward the bottom of the locking mechanism.
Stabilization Rods
US Patent:
2009024, Sep 24, 2009
Filed:
Mar 24, 2008
Appl. No.:
12/053924
Inventors:
David Scott Randol - Odessa FL, US
David A. Walsh - Reading MA, US
Carl Arthur Knobloch - Oviedo FL, US
David A. Walsh - Reading MA, US
Carl Arthur Knobloch - Oviedo FL, US
International Classification:
A61B 17/58
US Classification:
606254, 606246
Abstract:
A rod, such as that used for spinal stabilization, made of both metal material and elastomeric material. The rod may have a metal infrastructure, which may be non-cylindrical, to provide a desired stiffness for bending in at least one direction and may also have metal exterior surfaces for engaging metal components of spinal fixation locking mechanisms. In addition, the elastomeric material may only partially circumferentially encapsulate the metal material so that the metal material forms part of the surface of the rod.