Steven K Neuenfeldt

US Patent:

7846155, Dec 7, 2010

Filed:

Oct 7, 2005

Appl. No.:

11/246330

Inventors:

Kevin L. Houser - Springboro OH, US
Mark A. Neurohr - Newport KY, US
Steven K. Neuenfeldt - Pleasanton CA, US
Scott N. Barton - Milford OH, US

Assignee:

Ethicon Endo-Surgery, Inc. - Cincinnati OH

International Classification:

A61B 18/04
A61B 17/32

US Classification:

606 27, 606 42, 606169

Abstract:

An ultrasonic clamp coagulator assembly that is configured to permit selective cutting, coagulation and clamping of tissue during surgical procedures. An elongated portion of the instrument can be configured for endoscopic applications and has an outside diameter of less than 6 mm. The construction includes a clamping mechanism, including a clamp arm pivotally mounted at the distal portion of the instrument, which is specifically configured to create a desired level of tissue clamping forces, exceeding 4 pounds when the trigger is fully closed. The clamping mechanism includes a two-piece pad design and pad material that enables the higher tissue clamping forces and a force-limiting mechanism that effectively smooths out abusive tissue forces. The assembly also features hand activation configured to provide an ergonomical grip and operation for the surgeon. Hand switches are placed in the range of the natural swing of the surgeon's thumb, whether gripping the surgical instrument right-handed or left handed.

US Patent:

20060079877, Apr 13, 2006

Filed:

Oct 7, 2005

Appl. No.:

11/246384

Inventors:

Kevin Houser - Springboro OH, US
Steven Neuenfeldt - Pleasanton CA, US
Mark Neurohr - Newport KY, US
Craig Faller - Milford OH, US

International Classification:

A61B 18/18

US Classification:

606040000

Abstract:

An ultrasonic clamp coagulator assembly that is configured to permit selective cutting, coagulation and clamping of tissue during surgical procedures. An elongated portion of the instrument can be configured for endoscopic applications and has an outside diameter of less than 6 mm. The construction includes a clamping mechanism, including a clamp arm pivotally mounted at the distal portion of the instrument, which is specifically configured to create a desired level of tissue clamping forces, exceeding 4 pounds when the trigger is fully closed. The clamping mechanism includes a two-piece pad design and pad material that enables the higher tissue clamping forces and a force-limiting mechanism that effectively smooths out abusive tissue forces. The assembly also features hand activation configured to provide an ergonomical grip and operation for the surgeon. Hand switches are placed in the range of the natural swing of the surgeon's thumb, whether gripping the surgical instrument right-handed or left handed.

US Patent:

20070173872, Jul 26, 2007

Filed:

Jan 23, 2006

Appl. No.:

11/337405

Inventors:

Steven Neuenfeldt - Pleasanton CA, US

International Classification:

A61B 17/32

US Classification:

606169000

Abstract:

A first medical instrument is for cutting and coagulating patient tissue and includes a two-pronged end effector. The end effector has a first prong which includes a medical ultrasonic blade, has a second prong which includes an arm opposing the ultrasonic blade, and has a surgical knife. A second medical instrument is for a medical instrument for cutting and coagulating patient tissue and includes a two-pronged end effector. The end effector has a first prong which includes a first bipolar radio-frequency electrode, has a second prong which includes an arm opposing the electrodes, and has a surgical knife.

US Patent:

20070191712, Aug 16, 2007

Filed:

Feb 15, 2006

Appl. No.:

11/354372

Inventors:

Jeffrey Messerly - Cincinnati OH, US
Steven Neuenfeldt - Pleasanton CA, US

International Classification:

A61B 8/00

US Classification:

600439000

Abstract:

A medical instrument includes a medical end effector and a user-actuated media transporter. The medical end effector includes an ultrasound propagating element and includes a path adapted for directing a medical agent, when conveyed therealong, to the ultrasound propagating element. The user-actuated media transporter is adapted for conveying the medical agent along the path and into contact with the ultrasound propagating element. A medical system includes a medical instrument and a user-actuated hemostatic-agent transporter. The medical instrument is adapted for treating patient tissue and is a mechanical-based ligation instrument or an energy-based ligation instrument. The user-actuated hemostatic-agent transporter is adapted for conveying a hemostatic agent to the patient tissue. A method for sealing a blood vessel of a patient includes applying a hemostatic agent to the blood vessel and includes treating the blood vessel with a medical instrument which is a mechanical-based ligation instrument or an energy-based ligation instrument.

US Patent:

20090105664, Apr 23, 2009

Filed:

Oct 10, 2008

Appl. No.:

12/248994

Inventors:

Remedios Dato - Pleasanton CA, US
Koon-wah Leong - Sunnyvale CA, US
Steven Neuenfeldt - Pleasanton CA, US

International Classification:

A61M 5/31

US Classification:

604207

Abstract:

The present invention includes syringes for dispensing liquids. The devices of the invention increase ease of volume control and hence application thereof while minimizing any spillage or fluid migration up the side of the syringe tip.