Christopher W Newell

US Patent:

8062214, Nov 22, 2011

Filed:

Aug 27, 2004

Appl. No.:

10/927244

Inventors:

Cemal Shener - Woburn MA, US
Christopher R. Newell - Haverhill MA, US
Petter Hedstrom - Andover MA, US
Kenneth W. Krause - Sandown NH, US

Assignee:

Smith & Nephew, Inc. - Memphis TN

International Classification:

A61B 1/12

US Classification:

600159, 60105, 60153, 60156, 60158

Abstract:

A surgical system includes a first instrument defining a first channel and a second instrument receivable by the first channel. The second instrument defines a second channel. A valve coupled to the first instrument controls fluid flow through the first channel, such that impedance of fluid flow through the first channel is substantially the same without the second instrument received in the first channel and with the first channel partially blocked by the second instrument. In another aspect, a surgical apparatus includes an outer member and an inner member received within the outer member to define a first channel therebetween. The inner member houses an optical lens and defines a second channel for receiving a surgical instrument. The first and second channels are configured such that a pump having an inflow rate of up to about 0. 7 L/min connected to the second channel can maintain fluid pressure inside an organ.

US Patent:

8419626, Apr 16, 2013

Filed:

Aug 18, 2011

Appl. No.:

13/212240

Inventors:

Cemal Shener-Irmakoglu - Woburn MA, US
Christopher R. Newell - Haverhill MA, US
Petter Hedstrom - Haverhill MA, US
Kenneth W. Krause - Sandown NH, US

Assignee:

Smith & Nephew, Inc. - Memphis TN

International Classification:

A61B 1/12

US Classification:

600159, 600105, 600153, 600156, 600158

Abstract:

A surgical system includes a first instrument defining a first channel and a second instrument receivable by the first channel. The second instrument defines a second channel. A valve coupled to the first instrument controls fluid flow through the first channel, such that impedance of fluid flow through the first channel is substantially the same without the second instrument received in the first channel and with the first channel partially blocked by the second instrument. In another aspect, a surgical apparatus includes an outer member and an inner member received within the outer member to define a first channel therebetween. The inner member houses an optical lens and defines a second channel for receiving a surgical instrument. The first and second channels are configured such that a pump having an inflow rate of up to about 0. 7 L/min connected to the second channel can maintain fluid pressure inside an organ.

US Patent:

20130225928, Aug 29, 2013

Filed:

Apr 11, 2013

Appl. No.:

13/860654

Inventors:

Christopher R. Newell - Haverhill MA, US
Petter Hedstrom - Haverhill MA, US
Kenneth W. Krause - Sandown NH, US

Assignee:

Smith & Nephew, Inc. - Memphis TN

International Classification:

A61B 1/015

US Classification:

600159

Abstract:

A surgical system includes a first instrument defining a first channel and a second instrument receivable by the first channel. The second instrument defines a second channel. A valve coupled to the first instrument controls fluid flow through the first channel, such that impedance of fluid flow through the first channel is substantially the same without the second instrument received in the first channel and with the first channel partially blocked by the second instrument. In another aspect, a surgical apparatus includes an outer member and an inner member received within the outer member to define a first channel therebetween. The inner member houses an optical lens and defines a second channel for receiving a surgical instrument. The first and second channels are configured such that a pump having an inflow rate of up to about 0.7 L/min connected to the second channel can maintain fluid pressure inside an organ.

US Patent:

20190008371, Jan 10, 2019

Filed:

Sep 11, 2018

Appl. No.:

16/127612

Inventors:

- Mansfield MA, US
Christopher R. Newell - Haverhill MA, US
Petter Hedstrom - ANDOVER MA, US
Kenneth W. Krause - Sandown NH, US

International Classification:

A61B 1/018
A61B 17/34
A61B 1/015
A61B 17/02
A61B 1/00
A61B 17/32

Abstract:

A surgical system includes a first instrument defining a first channel and a second instrument receivable by the first channel. The second instrument defines a second channel. A valve coupled to the first instrument controls fluid flow through the first channel, such that impedance of fluid flow through the first channel is substantially the same without the second instrument received in the first channel and with the first channel partially blocked by the second instrument. In another aspect, a surgical apparatus includes an outer member and an inner member received within the outer member to define a first channel therebetween. The inner member houses an optical lens and defines a second channel for receiving a surgical instrument. The first and second channels are configured such that a pump having an inflow rate of up to about 0.7 L/min connected to the second channel can maintain fluid pressure inside an organ.

US Patent:

20160220102, Aug 4, 2016

Filed:

Apr 11, 2016

Appl. No.:

15/095997

Inventors:

- Memphis TN, US
Christopher R. Newell - Haverhill MA, US
Petter Hedstrom - Haverhill MA, US
Kenneth W. Krause - Sandown NH, US

International Classification:

A61B 1/018
A61B 1/00
A61B 17/32
A61B 1/015

Abstract:

A surgical system includes a first instrument defining a first channel and a second instrument receivable by the first channel. The second instrument defines a second channel. A valve coupled to the first instrument controls fluid flow through the first channel, such that impedance of fluid flow through the first channel is substantially the same without the second instrument received in the first channel and with the first channel partially blocked by the second instrument. In another aspect, a surgical apparatus includes an outer member and an inner member received within the outer member to define a first channel therebetween. The inner member houses an optical lens and defines a second channel for receiving a surgical instrument. The first and second channels are configured such that a pump having an inflow rate of up to about 0.7 L/min connected to the second channel can maintain fluid pressure inside an organ.

US Patent:

20150327752, Nov 19, 2015

Filed:

Jul 28, 2015

Appl. No.:

14/811331

Inventors:

- Memphis TN, US
Christopher R. Newell - Haverhill MA, US
Petter Hedstrom - Haverhill MA, US
Kenneth W. Krause - Sandown NH, US

International Classification:

A61B 1/015
A61B 17/32
A61B 17/02

Abstract:

A surgical system includes a first instrument defining a first channel and a second instrument receivable by the first channel. The second instrument defines a second channel. A valve coupled to the first instrument controls fluid flow through the first channel, such that impedance of fluid flow through the first channel is substantially the same without the second instrument received in the first channel and with the first channel partially blocked by the second instrument. In another aspect, a surgical apparatus includes an outer member and an inner member received within the outer member to define a first channel therebetween. The inner member houses an optical lens and defines a second channel for receiving a surgical instrument. The first and second channels are configured such that a pump having an inflow rate of up to about 0.7 L/min connected to the second channel can maintain fluid pressure inside an organ.

US Patent:

20140371708, Dec 18, 2014

Filed:

Aug 29, 2014

Appl. No.:

14/473389

Inventors:

- Memphis TN, US
Christopher R. Newell - Haverhill MA, US
Petter Hedstrom - Haverhill MA, US
Kenneth W. Krause - Sandown NH, US

International Classification:

A61B 1/00
A61B 1/018
A61B 17/34
A61B 1/015

US Classification:

604500

Abstract:

A surgical system includes a first instrument defining a first channel and a second instrument receivable by the first channel. The second instrument defines a second channel. A valve coupled to the first instrument controls fluid flow through the first channel, such that impedance of fluid flow through the first channel is substantially the same without the second instrument received in the first channel and with the first channel partially blocked by the second instrument. In another aspect, a surgical apparatus includes an outer member and an inner member received within the outer member to define a first channel therebetween. The inner member houses an optical lens and defines a second channel for receiving a surgical instrument. The first and second channels are configured such that a pump having an inflow rate of up to about 0.7 L/min connected to the second channel can maintain fluid pressure inside an organ.