Richard B Mcfarlane

US Patent:

6692467, Feb 17, 2004

Filed:

May 30, 2001

Appl. No.:

09/870112

Inventors:

Richard H. McFarlane - Riviera Beach FL

Assignee:

Taut, Inc. - Geneva IL

International Classification:

A61M 5178

US Classification:

60416703, 60416705, 604264

Abstract:

A trocar assembly structured to regulate fluid flow as well as the introduction of predetermined medical instrumentation into and out of a body cavity of a patient during a surgical procedure such as, but not limited to laparoscopy, endoscopy, etc. The trocar assembly includes a housing having a hollow interior secured at one end to an elongated open ended sleeve through which fluid flow and medical instrumentation passes. A valve assembly includes a valve member disposed within the hollow interior and a valve structure including a valve seat rotatably connected to the housing such that the valve seat is selectively rotatable relative to the valve member and into and out of fluid sealing engagement therewith so as to respectively define a valve-closed position and a valve-open position. The valve assembly may be rotated between the aforementioned open and closed positions utilizing one hand of the person operating the trocar assembly, wherein the valve assembly will automatically remain either in an open or closed position, without continuous pressure being exerted thereon by the personnel operating the trocar assembly.

US Patent:

6884253, Apr 26, 2005

Filed:

Apr 11, 2002

Appl. No.:

10/120895

Inventors:

Richard H. McFarlane - Singer Island FL, US

Assignee:

Taut, Inc. - Geneva IL

International Classification:

A61B017/34

US Classification:

606185, 60416401, 604264, 604272

Abstract:

A tissue penetrating instrument of the type used in the medical field and which may or may not be embodied in the form of an obturator associated with a trocar assembly, wherein the instrument includes an elongated shaft having a penetrating tip mounted on one end thereof. The penetrating tip includes a base secured to the one end of the shaft and a distal extremity spaced longitudinally outward from the base and formed into an apex which may be defined by a point or other configuration specifically structured to facilitate penetration or puncturing of bodily tissue. The apex may be substantially aligned with a linear extension of the central longitudinal axis of the shaft or alternatively, may be spaced laterally outward or off-set from the central longitudinal axis of the shaft. The penetrating tip further includes an exterior surface extending continuously between the apex and the base and configured to facilitate puncturing of the tissue and an enlargement of an access opening formed in the tissue, in a manner which facilitates separation of the tissue and minimizes cutting, severing or otherwise damaging the contiguous bodily tissue surrounding the access opening.

US Patent:

6908454, Jun 21, 2005

Filed:

Feb 13, 2003

Appl. No.:

10/366679

Inventors:

Richard H. McFarlane - Singer Island FL, US

Assignee:

Taut, Inc. - Geneva IL

International Classification:

A61M005/32
A61M029/00

US Classification:

604178, 604 9601, 604104

Abstract:

An anchor assembly for retaining a cannula or other medical instrument within a body cavity and including an inflatable member selectively disposed between an expanded position and a collapsed position. A mounting assembly is cooperatively disposed and structured with a base, underlying the inflatable member, so as to mechanically attach the inflatable member to an exterior of the cannula. The mechanical attachment is accomplished by one or more retaining segments on the inflatable member being disposed in a compressed or sandwiched orientation between the base and the mounting assembly.

US Patent:

7011314, Mar 14, 2006

Filed:

Apr 28, 2003

Appl. No.:

10/424564

Inventors:

Richard H. McFarlane - Singer Island FL, US

Assignee:

Taut, Inc. - Geneva IL

International Classification:

F16J 15/00
A61M 5/00

US Classification:

277626, 60416706, 604256

Abstract:

A seal assembly used in combination with a trocar assembly to maintain sealing engagement with the exterior surface of medical instrument, which may have different size diameters, introduced into the trocar assembly so as to maintain adequate insufflation pressure within a body cavity accessed by the trocar assembly. The seal assembly includes a seal member and is structured to permit free movement of the seal member at least radially within a chamber of a seal housing which may be attached to or part of the trocar housing. The seal member and the sealing chamber are cooperatively dimensioned to maintain at least the periphery of an outer surface of the seal member in surrounding relation to an inlet port of the chamber and thereby maintain seal engagement between corresponding interior surfaces of the chamber and the corresponding outer surfaces of the seal member.

US Patent:

7316699, Jan 8, 2008

Filed:

Feb 7, 2003

Appl. No.:

10/360550

Inventors:

Richard H. McFarlane - Singer Island FL, US

Assignee:

Teleflex Medical Incorporated - Limerick PA

International Classification:

A61B 17/32

US Classification:

606168, 604 9301, 604164

Abstract:

An assembly structured to introduce a trocar or other medical instrumentation into a body cavity through an entry site formed in the cavity wall. The introducer assembly includes a base formed of a semi-rigid, flexible and/or a semi-flexible material having an instrument receiving passage extending there through, and further including an exterior sealing surface extending between proximal and distal portions of the base. The sealing surface has a predetermined configuration which is shaped to conform to the shape of the entry site as the base passes into the entry site. A fluid restricting seal is thereby established between the exterior of the base and the peripheral tissue surrounding the entry site, particularly when the entry site is formed by an incision commonly utilized an open laparoscopic procedure.

US Patent:

7390316, Jun 24, 2008

Filed:

Aug 6, 2004

Appl. No.:

10/914053

Inventors:

Richard H. McFarlane - Singer Island FL, US

Assignee:

Teleflex Medical Incorporated - Limerick PA

International Classification:

A61M 5/178

US Classification:

60416703

Abstract:

An assembly structured to selectively orient a seal between an open position and a closed position. The assembly includes an expander structure disposable into a seal open or a seal closed orientation by being rotated or otherwise movable into and out of forced engagement with predetermined portions of the seal structure. The seal open orientation disposes the seal structure out of engagement with an instrument passing there through and may also facilitate a rapid venting of insufflation gas from an inflated body cavity, such as when the seal positioning assembly is used with a trocar assembly involved in the performance of laprascopic or like surgery. A biasing assembly may be connected to the seal structure to bias it in a normally closed position in the absence of an instrument disposed within the seal structure.

US Patent:

8398666, Mar 19, 2013

Filed:

Apr 26, 2005

Appl. No.:

11/115094

Inventors:

Richard H. McFarlane - Singer Island FL, US

Assignee:

Teleflex Medical Incorporated - Limerick PA

International Classification:

A61B 17/34

US Classification:

606185

Abstract:

A tissue penetrating instrument of the type used in the medical field and which may or may not be embodied in the form of an obturator associated with a trocar assembly, wherein the instrument includes an elongated shaft having a penetrating tip mounted on one end thereof. The penetrating tip includes a base secured to the one end of the shaft and a distal extremity spaced longitudinally outward from the base and formed into an apex which may be defined by a point or other configuration specifically structured to facilitate penetration or puncturing of bodily tissue. The apex may be substantially aligned with a linear extension of the central longitudinal axis of the shaft or alternatively, may be spaced laterally outward or off-set from the central longitudinal axis of the shaft. The penetrating tip further includes an exterior surface extending continuously between the apex and the base and configured to facilitate puncturing of the tissue and an enlargement of an access opening formed in the tissue, in a manner which facilitates separation of the tissue and minimizes cutting, severing or otherwise damaging the contiguous bodily tissue surrounding the access opening.

US Patent:

20020013597, Jan 31, 2002

Filed:

May 16, 2001

Appl. No.:

09/859009

Inventors:

Richard McFarlane - Riviera Beach FL, US

International Classification:

A61B017/34

US Classification:

606/185000

Abstract:

A tissue penetrating instrument of the type used in the medical field and which may or may not be embodied in the form of an obturator associated with a trocar assembly, wherein the instrument includes an elongated shaft having a penetrating tip mounted on one end thereof. The penetrating tip includes a base secured to the one end of the shaft and a distal extremity spaced longitudinally outward from the base and formed into an apex which may be defined by a point or other configuration specifically structured to facilitate penetration or puncturing of bodily tissue. The apex may be substantially aligned with a linear extension of the central longitudinal axis of the shaft or alternatively, may be spaced laterally outward or off-set from the central longitudinal axis of the shaft. The penetrating tip further includes an exterior surface extending continuously between the apex and the base and configured to facilitate puncturing of the tissue and an enlargement of an access opening formed in the tissue, in a manner which facilitates separation of the tissue and minimizes cutting, severing or otherwise damaging the contiguous bodily tissue surrounding the access opening.