David N Fowler

US Patent:

D490188, May 18, 2004

Filed:

Aug 28, 2002

Appl. No.:

29/166474

Inventors:

David N. Fowler - Raleigh NC
James D. Segermark - Gem Lake MN
Christopher J. Herman - White Bear Lake MN

Assignee:

Pilling Weck Incorporated - Limerick PA

International Classification:

2803

US Classification:

D28 57

US Patent:

7101372, Sep 5, 2006

Filed:

Apr 6, 2001

Appl. No.:

10/472295

Inventors:

Sean T. Dycus - Superior CO, US
Dax D. Brown - Golden CO, US
David Farascioni - Bethel CT, US
Michael Primavera - Milford CT, US
David Fowler - Raleigh NC, US

Assignee:

Sherwood Sevices AG - Schaffhausen

International Classification:

A61B 18/18

US Classification:

606 51, 606205

Abstract:

An electrosurgical instrument includes a housing having a shaft attached thereto which connects a pair of first and second jaw members such that the jaw members are movable relative to one another to grasp tissue therebetween. The instrument also includes a four-bar handle assembly attached to the housing for actuating a drive rod assembly. The handle assembly includes a handle and a cam-like piston which cooperate to impart a uniform closure pressure against tissue grasped between the jaw members. The instrument also includes a rotating assembly for rotating the jaw members, a knife assembly for separating tissue and a pair of electrical leads connect the jaw members to a source of electrical energy. The electrical leads include slack loops disposed in the rotating assembly which permit rotation of the jaw members about the axis.

US Patent:

7101373, Sep 5, 2006

Filed:

Apr 6, 2001

Appl. No.:

10/472375

Inventors:

Sean T. Dycus - Superior CO, US
Dax D. Brown - Golden CO, US
David Farascioni - Bethel CT, US
Michael Primavera - Milford CT, US
David Fowler - Raleigh NC, US

Assignee:

Sherwood Services AG - Schaffhausen

International Classification:

A61B 18/18

US Classification:

606 51, 606205

Abstract:

An electrosurgical instrument includes a housing having a shaft attached thereto which connects a pair of first and second jaw members in an opposing manner relative to one another. The jaw members are movable relative to one another from a first open position wherein the jaw members are disposed in spaced relation relative to one another to a second closed position wherein the jaw members cooperate to grasp tissue therebetween. The instrument also includes a handle which imparts movement of the first and second jaw members from the first and second positions and a rotating assembly for rotating the jaw members about a longitudinal axis defined through the shaft. A pair of electrical leads connect the jaw members to a source of electrical energy such that the jaw members are capable of conducting energy through tissue held therebetween. The leads include a slack-like loop disposed in the rotating assembly which permits rotation of the jaw members about the longitudinal axis without unduly straining the electrical leads.

US Patent:

7131977, Nov 7, 2006

Filed:

Aug 27, 2002

Appl. No.:

10/228746

Inventors:

David N. Fowler - Raleigh NC, US

Assignee:

Pilling Weck Incorporated - Limerick PA

International Classification:

A61B 17/10
A61B 17/29

US Classification:

606138, 606206

Abstract:

An endoscopic apparatus includes a pair of jaws pivotably connected to each other and movable between an open position and a closed position. The jaws have respective opposing gripper portions. Each gripper portion has a distal end, a proximal end, and an inside surface extending between the distal and proximal ends. At the closed position, the inside surfaces define a jaw gap therebetween. At least a portion of the jaw gap increases in distance along a direction from the distal end toward the proximal end. An actuating mechanism communicates with the jaws for moving the jaws between the open and closed position. In a surgical procedure in which a clip such as a hemostatic clip has been latched around a blood vessel or other tissue, the apparatus can be used to compress the clip and consequently unlatch the clip, thereby releasing the clip from the vessel. Thereafter, the apparatus can be rotated. After rotation, the apparatus can be used to grasp the clip and subsequently remove the clip from the surgical site.

US Patent:

7211091, May 1, 2007

Filed:

Aug 27, 2002

Appl. No.:

10/229168

Inventors:

David N. Fowler - Raleigh NC, US
James D. Segermark - Gem Lake MN, US
Christopher J. Herman - White Bear Lake MN, US

Assignee:

Pilling Weck Incorporated - Limerick PA

International Classification:

A61B 17/10
A61B 17/122
A61B 17/00

US Classification:

606142, 606205

Abstract:

A fingertip-actuated surgical clip applier includes a first body and a second body substantially structurally identical to the first body. The first body includes a main section and a first jaw extending in a distal direction from the main section. The main section includes a hinge region and a first longitudinal wall extending between the first jaw and the hinge region. The first longitudinal wall includes a first outside surface adapted for contacting a first fingertip. The second body includes a second jaw and a second longitudinal wall. The second longitudinal wall includes a second outside surface adapted for contacting a second fingertip. The second body is inverted in relation to the first body and is pivotably connected to the hinge region. The first and second jaws are pivotable toward each other to a closed position and away from each other to an open position.

US Patent:

7316696, Jan 8, 2008

Filed:

Jan 22, 2004

Appl. No.:

10/763032

Inventors:

David N. Fowler - Raleigh NC, US
Steven J Owens - Loveland OH, US

Assignee:

Teleflex Medical Incorporated - Limerick PA

International Classification:

A61B 17/08
A61B 17/32
A61M 5/00
A45D 8/20
A45D 8/22

US Classification:

606158, 606151, 606170, 606178, 606179, 604250, 132277, 132278, 132279

Abstract:

A polymeric, surgical clip having first and second curved legs joined at their proximal ends by a flexible hinge section and movable from an open position to a closed position for clamping a vessel between curved opposing inner surfaces. The first leg terminates at its distal end in a female locking member comprising a resilient inwardly turned hook having a recess in the mouth of the hook, and the second leg member terminates in a male locking member complimentary to the female locking member and comprising a detent such that when the first and second leg members are moved from an open position to a closed position about the hinge section the hook member will deflect about the distal end of the second leg member thereby engulfing the male locking member in the mouth of the hook and matingly engaging the detent in the recess thereof, thus securely locking the clip in the closed position. The locking feature provides greater closure security to the clip when clamping large diameter or uncompressible tissue.

US Patent:

7384420, Jun 10, 2008

Filed:

May 19, 2004

Appl. No.:

10/848773

Inventors:

Sean T. Dycus - Broomfield CO, US
Dax D. Brown - Bardstown KY, US
David Farascioni - Bethel CT, US
Michael Primavera - Orange CT, US
David N. Fowler - Cheshire CT, US

Assignee:

Sherwood Services AG - Schaffhausen

International Classification:

A61B 18/18

US Classification:

606 51, 606 50

Abstract:

An electrosurgical instrument includes a housing having a shaft attached thereto which connects a pair of first and second jaw members such that the jaw members are movable relative to one another to grasp tissue therebetween. The instrument also includes a four-bar handle assembly attached to the housing for actuating a drive rod assembly. The handle assembly includes a handle and a cam-like piston which cooperate to impart a uniform closure pressure against tissue grasped between the jaw members. The instrument also includes a rotating assembly for rotating the jaw members, a knife assembly for separating tissue and a pair of electrical leads connect the jaw members to a source of electrical energy. The electrical leads include slack loops disposed in the rotating assembly which permit rotation of the jaw members about the axis.

US Patent:

7823592, Nov 2, 2010

Filed:

Oct 12, 2005

Appl. No.:

11/248846

Inventors:

Michael J. Bettuchi - Middletown CT, US
David N. Fowler - Cheshire CT, US
Frank J. Viola - Sandy Hook CT, US
Christopher J. Criscuolo - Banford CT, US
Danyel J. Tarinelli - Middletown CT, US
Robert Capella - Shelton CT, US
Kevin Sniffin - Danbury CT, US
Ahmad Robert Hadba - Wallingford CT, US

Assignee:

Tyco Healthcare Group LP - North Haven CT

International Classification:

A61B 17/115

US Classification:

128898, 2271791, 2271751, 227 19

Abstract:

An apparatus for forming an anastomosis between adjacent intestinal sections of tissue is provided. The apparatus includes a circular surgical stapler having an anvil assembly with an anvil shaft and an anvil, the circular surgical stapler further having a tubular body portion with an annular knife and a body portion shaft selectively attachable to the anvil shaft; and a seal structure for deposition between the intestinal sections of tissue including a hub configured to engage attachment structure on at least one of the anvil shaft and the body portion shaft. The attachment structure is positioned so that the seal structure is located between the intestinal sections of tissue when the circular surgical stapler is disposed within the intestinal sections of tissue.