David E Walsh

US Patent:

20040260686, Dec 23, 2004

Filed:

Apr 1, 2004

Appl. No.:

10/817537

Inventors:

James Woodroffe - Boston MA, US
David Walsh - Cambridge MA, US
Michael Bulat - Cambridge MA, US

International Classification:

G06F017/30

US Classification:

707/003000

Abstract:

A server for facilitating a vendor showcase system, wherein the server communicates with clients via a distributed computing network, and wherein the server includes a memory storing an instruction set and vendor data related to a plurality of vendors. The server also includes a processor for running the instruction set, the processor being in communication with the memory and the distributed computing network. The processor is operative to (i) sort the vendor data based upon category, (ii) receive criteria related to a request for information, and (iii) provide a display of the vendor data for a pre-selected number of vendors based upon the criteria, wherein the display of the vendor data is presented in a flat manner. The processor may be further operative to compile return on investment statistics based upon user traffic and viewing at the display.

US Patent:

20080040683, Feb 14, 2008

Filed:

Aug 11, 2006

Appl. No.:

11/502995

Inventors:

David Walsh - Cambridge MA, US

International Classification:

G06F 3/048

US Classification:

715786, 715781, 715784

Abstract:

A graphical user interface includes a scrollbar located centrally between two panes displaying interactive content. Moving the scrollbar causes movement of the content in both panes to scroll. The panes include additional content regions (represented, for example, by an image or color) located near the scrollbar. Selecting one of the additional content regions, such as by holding a mouse cursor over it, causes additional content to be displayed. The additional content may include links and an additional scrollbar for scrolling within the additional content.

US Patent:

20100152787, 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

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 ().

US Patent:

20100160980, 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

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 ().

US Patent:

20110196430, Aug 11, 2011

Filed:

Feb 10, 2010

Appl. No.:

12/703392

Inventors:

David A. Walsh - Reading MA, 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.

US Patent:

20130090690, 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.

US Patent:

47641657, Aug 16, 1988

Filed:

Jun 25, 1987

Appl. No.:

7/066347

Inventors:

Harry G. Reimels - Braintree MA
David A. Walsh - Waltham MA
Michael J. Arsenault - Brant Rock MA

Assignee:

Mentor O & O, Inc. - Norwell MA

International Classification:

A61M 100

US Classification:

604 35

Abstract:

An ophthalmic aspirator-irrigator system for use during cataract surgery is disclosed. The system frees both hands of the surgeon for the surgical tasks and leaves the automatic operation of the system to a single control input operated by a foot pedal. The pedal controls both the aspiration and ejection functions as well as their respective speeds. The ophthalmic aspirator-irrigator system essentially comprises a hand-held device, a control box operable by the foot pedal and a power cord connecting the device with the box. A source of fluid is connected via a tube to the device to effect the irrigation function. The control box includes a power source and a circuit coupled to the source and via the cord to the device. Preferably, the circuit includes a bridge output network controlled by a linear motion slide type potentiometer controlled by the foot pedal. The circuit further includes dual DC amplifiers and a pulse-width modulated gate circuit to operate the device bidirectionally with a smooth, continuous and variable speed.

US Patent:

61969699, Mar 6, 2001

Filed:

May 21, 1999

Appl. No.:

9/316231

Inventors:

Leon W. Bester - Belmont MA
David A. Walsh - Somerville MA

Assignee:

Lab Engineering & Manufacturing, Inc. - North Billerica MA

International Classification:

A61B 132

US Classification:

600224

Abstract:

A tissue retractor with an adjustable center claw. The retractor includes two pivoted retractor arms. An axially and angularly displaceable, spring biased clamping mechanism is positioned on the pivot axis. In a mounting position, a elongated clamping element aligns with a slot in the center claw. When the center claw is positioned and the clamp moves to its clamping position, the elongated clamping member clamps the center claw in position. The counterfacing surfaces of the center claw and the clamping member are toothed to provide a positive one-way ratchet clamp.