Philip J Conway

US Patent:

6383434, May 7, 2002

Filed:

Jun 30, 1999

Appl. No.:

09/343917

Inventors:

Anthony J. Conway - Chatfield MN
Philip J. Conway - Chatfield MN

Assignee:

Rochester Medical Corporation - Stewartville MN

International Classification:

B29C 3356

US Classification:

264221, 264303, 264304, 264317, 264338

Abstract:

A method of shaping polymeric structures by coating a support structure with a bond-preventing agent to attain a particular shape and subsequently coating the shaped structure of the bond-preventing agent with a polymeric bonding composition is provided. Such shaped polymeric structures can have one or more cavities which can be fluid-filled or gel-filled. Also provided is a hand-actuating retention female urinary catheter having an inner tube and an outer overcoat layer encircling the tube with an elastomeric collar with a shroud. A cavity containing a fluid is interposed between the tube and the overcoat layer. The cavity includes a balloon portion and a reservoir portion. The shroud encircles the reservoir section to inhibit the ballooning of the reservoir section when the reservoir section is squeezed to force fluid from the reservoir portion to the balloon portion through the sleeve portion of the cavity. The overcoat layer and the collar with a shroud are made of soft resilient material.

US Patent:

6479000, Nov 12, 2002

Filed:

May 25, 1999

Appl. No.:

09/318048

Inventors:

Anthony J. Conway - Chatfield MN
Philip J. Conway - Chatfield MN

Assignee:

Rochester Medical Corporation - Stewartville MN

International Classification:

B29C 4114

US Classification:

264135, 264255, 264305, 264139, 264154, 427402, 4274301

Abstract:

An apparatus for sealing at least a portion of the urinary tract to prevent the unwanted discharge of urine includes a body member with a tubular member, encircled along its length by an overcoat layer, that encases a fluid, forming a cavity. The body member, with its tubular member and overcoat layer are elastically deformable from an initial ârestâ or ârelaxedâ state, when outside of the body, where at least a portion of the overcoat layer is of a diameter equal to or greater than that of an undilated urethra. A stylet may be placed into the tubular member to serve as a guide, for elongation of the body member and to provide rigidly to the body member upon insertion into the urinary tract. There is also disclosed a method for making the apparatus of the present invention.

US Patent:

6626888, Sep 30, 2003

Filed:

Sep 26, 1995

Appl. No.:

08/533911

Inventors:

Anthony J. Conway - Chatfield MN
Philip J. Conway - Chatfield MN

Assignee:

Rochester Medical Corporation - Stewartville MN

International Classification:

A61M 3100

US Classification:

604517, 604500

Abstract:

A method shaping polymeric structures by coating a support structure with a bond-preventing agent to attain a particular shape and subsequently coating the shaped structure of the bond-preventing agent with a polymeric bonding composition is provided. Such shaped polymeric structures can have one or more cavities which can be fluid-filled or gel-filled. Also provided is a hand-actuating retention female urinary catheter having an inner tube and an outer overcoat layer encircling the tube with an elastomeric collar with a shroud. A cavity containing a fluid is interposed between the tube and the overcoat layer. The cavity includes a balloon portion and a reservoir portion. The shroud encircles the reservoir section to inhibit the ballooning of the reservoir section when the reservoir section is squeezed to force fluid from the reservoir portion to the balloon portion through the sleeve portion of the cavity. The overcoat layer and the collar with a shroud are made of soft resilient material.

US Patent:

59719540, Oct 26, 1999

Filed:

Jan 29, 1997

Appl. No.:

8/790397

Inventors:

Anthony J. Conway - Chatfield MN
Philip J. Conway - Chatfield MN
Richard D. Fryar - Rochester MN

Assignee:

Rochester Medical Corporation - Stewartville MN

International Classification:

A61M 2900
A61M 2510
A61M 2516

US Classification:

604 96

Abstract:

A hand-actuated retention catheter 5 is disclosed. The retention catheter includes a tube 12, an overcoat layer 14 encircling the tube 12 and a cavity 16 interposed between the tube 12 and the overcoat layer 14. The cavity 16 encircles the tube and includes a bulbous balloon portion 24 and an enlarged fluid reservoir portion 22 interconnected and separated by a catheter sleeve portion 26 which has a narrowed outside diameter. The expandable balloon portion 24 can be expanded by compressing the fluid reservoir portion 22. Methods of making the hand-actuated retention catheter and methods of using the same are also disclosed.

US Patent:

55993214, Feb 4, 1997

Filed:

Jun 7, 1995

Appl. No.:

8/484600

Inventors:

Anthony J. Conway - Chatfield MN
Philip J. Conway - Chatfield MN
Richard D. Fryar - Rochester MN

Assignee:

Rochester Medical Corporation - Stewartville MN

International Classification:

A61M 532
A61M 2500

US Classification:

604265

Abstract:

A sustained release bactericidal cannula or catheter for residence within a portion of a human body through which aqueous biological fluids can pass. The bactericidal cannula for catheter including a tube having an inner surface, defining and interior lumen, and an outer surface. The tube has a polymeric matrix and antibacterial agent residing within at least a portion of the polymeric matrix. The polymeric matrix includes cured silicon rubber and the antibacterial agent is a finely divided nitrofuran compound which is soluble in water and effective to prevent proliferation of certain bacteria in an otherwise growth supporting aqueous environment when dissolved in the aqueous environment to the limit of its solubility therein at 37. degree. C. The solubility of the nitrofuran compound is preferably about 0. 2% by weight or less at a pH of about 6 and a temperature of about 25. degree. C.

US Patent:

52697703, Dec 14, 1993

Filed:

Mar 13, 1992

Appl. No.:

7/851983

Inventors:

Anthony J. Conway - Chatfield MN
Philip J. Conway - Chatfield MN
Richard D. Fryar - Rochester MN

Assignee:

Rochester Medical Corporation - Stewartville MN

International Classification:

A61M 532
A61M 2900

US Classification:

604265

Abstract:

An elongated catheter having an interior and an exterior surface, wherein the interior surface defines a lumen passing through the catheter. The catheter further including an enclosed cavity between the interior and exterior surfaces which encircles of the lumen. The cavity having an inner wall and an outer wall, the outer wall being a resilient sleeve which can stretch generally independently of the inner wall. The cavity containing an amount of a suitable lubricating substance effective to permit the resilient sleeve to slide along an outer surface of the inner wall while in lubricated contact therewith when stretched independently of the inner wall and including a bactericidal agent, wherein the inner wall and the outer wall are joined together at distal end proximal ends of the enclosed cavity. The resilient sleeve includes a plurality of micropores which permit the bactericidal agent to diffuse into suitable aqueous environments. An automated method for producing the same, including a series of automated dipping steps, is also disclosed.

US Patent:

53760859, Dec 27, 1994

Filed:

Nov 16, 1993

Appl. No.:

8/153482

Inventors:

Anthony J. Conway - Chatfield MN
Philip J. Conway - Chatfield MN
Richard D. Fryar - Rochester MN

Assignee:

Rochester Medical Corporation - Stewartville MN

International Classification:

A61F 5453

US Classification:

604352

Abstract:

An external urinary catheter having integral adhesive means. The external urinary catheter includes (a) a single tubular sheath having a unitary construction made of silicone rubber, the silicone rubber having an inner surface and an outer surface; and (b) a layer of adhesive material bonded to a first portion of the inner surface; wherein the adhesive material can releasably contact portions of the outer surface such that the inner surface of the silicone rubber sheath can be rolled up on the outer surface thereof so that the adhesive layer on the first portion of the inner surface comes into releasable contact with the portions of the outer surface, and such that the adhesive material on the outer surface will then release any portions of the outer surface with which it has come into contact, while remaining bonded to the inner surface, when the silicone rubber sheath is forcibly unrolled. A method of making an external urinary catheter is also disclosed. Said method includes the steps of (a) coating a first portion of a mandrel with an adhesive material; (b) subsequently overcoating the mandrel with a silicone rubber solution to form an overcoat layer made of unvulcanized silicone rubber; and (c) vulcanizing the unvulcanized silicone rubber such that constituents of the silicone rubber cross-link to form an elastomeric sheath having a unitary construction made of vulcanized silicone rubber; the silicone rubber sheath having an inner surface and outer surface; and the adhesive material being bonded to a first portion of the inner surface.

US Patent:

51766663, Jan 5, 1993

Filed:

Apr 29, 1992

Appl. No.:

7/876702

Inventors:

Anthony J. Conway - Chatfield MN
Philip J. Conway - Chatfield MN
Richard D. Fryar - Rochester MN

Assignee:

Rochester Medical Corporation - Stewartville MN

International Classification:

A61F 544
A61F 602
A61F 604
A61K 102

US Classification:

604349

Abstract:

An external urinary catheter having integral adhesive means. The external urinary catheter includes (a) a single tubular sheath having a unitary construction made of silicone rubber, the silicone rubber having an inner surface and an outer surface; and (b) a layer of adhesive material bonded to a first portion of the inner surface; wherein the adhesive material can releasably contact portions of the outer surface such that the inner surface of the silicone rubber sheath can be rolled up on the outer surface thereof so that the adhesive layer on the first portion of the inner surface comes into releasable contact with the portions of the outer surface, and such that the adhesive material on the outer surface will then release any portions of the outer surface with which it has come into contact, while remaining bonded to the inner surface, when the silicone rubber sheath is forcibly unrolled. A method of making an external urinary catheter is also disclosed. Said method includes the steps of (a) coating a first portion of a mandrel with an adhesive material (b) subsequently overcoating the mandrel with a silicon rubber solution to form an overcoat layer made of unvulcanized silicone rubber; and (c) vulcanizing the unvulcanized silicon rubber such that constituents of the silicone rubber cross-link to form an elastomeric sheath having a unitary construction made of vulcanized silicone rubber; the silicone rubber sheath having an inner surface and out outer surface; and the adhesive material being bonded to a first portion of the inner surface.