Jeffrey N Stein

US Patent:

54658969, Nov 14, 1995

Filed:

Jul 5, 1994

Appl. No.:

8/270399

Inventors:

William J. Allen - Stratford CT
Jeffrey A. Stein - Milford CT
Paul DiCesare - Norwalk CT
Paul Mulhauser - New York NY
Doug Spranger - New York NY

Assignee:

United States Surgical Corporation - Norwalk CT

International Classification:

A61B 17072

US Classification:

227176

Abstract:

A linear surgical stapling instrument includes a magazine for holding a plurality of undeformed surgical staples, and an upper jaw carrying the magazine and having opposed distal and proximal ends. An anvil is formed with staple-deforming pockets, and a lower jaw carries the anvil and has opposing distal and proximal ends respectively configured to mate with the distal and proximal ends of the upper jaw thereby to place the magazine and the anvil in confronting relation. A staple driver is carried in the upper jaw for driving staples held therein toward the anvil. Further, the upper and lower jaws are configured such that, when their respective distal and proximal ends are mated, a gap exists between the jaws in an intermediate region between their respective distal and proximal ends. Finally, a pivotably mounted clamp bar joins the upper and lower jaws and when actuated compresses them together in the intermediate region thereby to narrow the gap and to increase the clamping pressure between the magazine and the anvil. The instrument also includes a blocking system that prevents the jaws from being remated, once having been mated and having had staples in the magazine driven toward the anvil.

US Patent:

48503550, Jul 25, 1989

Filed:

Apr 6, 1987

Appl. No.:

7/035074

Inventors:

Christopher J. Brooks - Glen Cove NY
Jeffrey A. Stein - Milford CT
Paul J. Mulhauser - New York NY

Assignee:

Richard-Allan Medical Industries, Inc. - Richland MI

International Classification:

A61B 1712

US Classification:

128325

Abstract:

The present invention relates to an apparatus for applying hemostatic or ligating clips. The apparatus is provided with a unitary chassis on which all other components are attached. A clip housing is disposed at the forward end of the apparatus and stores a plurality of abuttingly arranged forward facing clips that are fed one at a time to the jaws. Upon closure of the handles, the jaws are drawn rearwardly into the apparatus and cammed closed to deform a clip positioned between the jaws. Upon release of the handles, the apparatus returns to its unactuated position and advances a clip to the jaws. The apparatus includes a lockout member to prevent actuation of the apparatus while a clip is in transition from the clip housing to the jaws.

US Patent:

52401634, Aug 31, 1993

Filed:

Oct 30, 1991

Appl. No.:

7/785290

Inventors:

Jeffrey A. Stein - Milford CT
David Schiff - Philadelphia PA
Paul Mulhauser - New York NY
Donald Lamond - Long Beach NY

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

A61B 17072

US Classification:

227175

Abstract:

A surgical stapling instrument includes a staple cartridge that may be loaded with surgical staples, an anvil mounted to confront the staple cartridge for deforming staples driven theretoward, and advancer for advancing the staple cartridge from an open position toward the anvil to a closed position for clamping tissue to be sutured therebetween, and a driver for driving the staples from the cartridge toward the anvil through tissue clamped between the cartridge and the anvil. A trigger for operating the driver, and a safety mechanism linked to the advancer preventing the trigger from operating the driver when the cartridge is in the open position but permits the trigger to operate the driver only when the cartridge is in the closed position. In addition, a coupling mechanism can removably mount a head assembly and a handle assembly, with each assembly containing a portion of the advancer and driver. The coupling mechanism can also include a rotatable mechanism for permitting relative rotation between the handle assembly and the head assembly.

US Patent:

59046937, May 18, 1999

Filed:

Nov 23, 1994

Appl. No.:

8/346285

Inventors:

Paul C. Dicesare - Norwalk CT
Jeffrey A. Stein - Milford CT
William J. Allen - Stratford CT
Joseph N. Logan - Trumbull CT
John A. Conners - Fairfield CT

Assignee:

American Cyanamid Company - Wayne NJ

International Classification:

A61B17/00

US Classification:

606143

Abstract:

A laparoscopic ligation clip applicator for automatically applying a plurality of ligation clips includes a handle assembly having an actuator, an elongated shaft connected to the handle assembly, and an actuating mechanism disposed within the shaft. The actuating mechanism includes a clamp for engaging a first piece of the ligation clip and a slidable driver for driving a second piece of the ligation clip relative to the first piece. The actuating mechanism also includes a hold for preventing rearward movement of the ligation clips, and an advancer for sequentially feeding the ligation clips. A slidable cam, operably connected to the handle assembly, actuates the clamp, the driver and the advancer.

US Patent:

48440663, Jul 4, 1989

Filed:

Apr 6, 1987

Appl. No.:

7/035075

Inventors:

Jeffrey A. Stein - Milford CT

Assignee:

Richard-Allan Medical Industries, Inc. - Richland MI

International Classification:

A61B 1712

US Classification:

128325

Abstract:

The present invention relates to a surgical clip for occluding the flow of blood through a blood vessel, artery or vein. The clip formed with longitudinal and transverse or lateral notches to prevent both longitudinal and lateral slippage of the clip with respect to the vessel. The clip is also provided with coined front legs to assist in deformation about a vessel and to further provide a self aligning feature when the clips are arranged in an abutting, forward facing row. The apparatus of the present invention forms the foregoing described clip and does so in a symmetrical way to provide a clip with a uniform stock length.

US Patent:

53950348, Mar 7, 1995

Filed:

Sep 21, 1992

Appl. No.:

7/947864

Inventors:

William J. Allen - Stratford CT
Joseph N. Logan - Trumbull CT
Jeffrey A. Stein - Milford CT
Paul C. DiCesare - Norwalk CT
Douglas M. Spranger - New York NY
Paul J. Mulhauser - New York NY

Assignee:

American Cyanamid Co. - Wayne NJ

International Classification:

A61B 17072

US Classification:

227178

Abstract:

A linear surgical stapling instrument includes a magazine for holding a plurality of undeformed surgical staples, and an upper jaw carrying the magazine and having opposed distal and proximal ends. An anvil is formed with staple-deforming pockets, and a lower jaw carries the anvil and has opposing distal and proximal ends respectively configured to mate with the distal and proximal ends of the upper jaw thereby to place the magazine and the anvil in confronting relation. A staple driver is carried in the upper jaw for driving staples held therein toward the anvil. Further, the upper and lower jaws are configured such that, when their respective distal and proximal ends are mated, a gap exists between the jaws in an intermediate region between their respective distal and proximal ends. Finally, a pivotably mounted clamp bar joins the upper and lower jaws and when actuated compresses them together in the intermediate region thereby to narrow the gap and to increase the clamping pressure between the magazine and the anvil. The instrument also includes a blocking system that prevents the jaws from being remated, once having been mated and having had staples in the magazine driven toward the anvil.

US Patent:

45126178, Apr 23, 1985

Filed:

Mar 6, 1984

Appl. No.:

6/586768

Inventors:

Lawrence M. Saravis - late of Milford CT
Jeffrey A. Stein - Bridgeport CT
Darren S. Saravis - Milford CT

Assignee:

The Barden Corporation - Danbury CT

International Classification:

F16C 2906

US Classification:

308 6C

Abstract:

An improved linear ball bearing which accommodates shaft misalignment in which a sleeve surrounds an assembly of a cage having unloaded ball path portions adjacent to the sleeve and loaded ball path portions adjacent to the shaft with load plates disposed between the loaded path portions and the sleeve. Internal bosses on the sleeve engage the load plates intermediate the ends thereof to permit them to rock to accommodate shaft misalignment.

US Patent:

56721617, Sep 30, 1997

Filed:

Sep 20, 1996

Appl. No.:

8/717384

Inventors:

William J. Allen - Stratford CT
Jeffrey A. Stein - Woodbridge CT

Assignee:

Becton, Dickinson and Company - Franklin Lakes NJ

International Classification:

A61M 532

US Classification:

604263

Abstract:

A needle assembly having a single-handedly activated needle barrier includes a needle cannula having a lumen therethrough. A needle hub having an interior cavity terminating at an open proximal end of the hub is connected to the needle cannula so that the lumen is in fluid communication with the interior cavity. A guide element having a retaining groove therethrough is connected to the needle hub. An elongate barrier arm having a proximal end and a distal end includes a barrier element at its distal end. The barrier element includes a proximal end and a needle passageway therethrough. The barrier arm is positioned within the groove of the guide element and the needle cannula is positioned at least partially within the barrier element. The barrier arm is movable from at least a first retracted position wherein the distal end of the cannula passes through the barrier element so that the distal end of the needle cannula is exposed, to a second extended position wherein the barrier element surrounds the distal end of the needle cannula to help prevent accidental contact with the distal end of the needle cannula. Locking structure to prevent movement of the barrier arm from the second extended position is activated by movement of the barrier arm into the second extended position.