Kenneth Wu

US Patent:

8246590, Aug 21, 2012

Filed:

Oct 10, 2008

Appl. No.:

12/249759

Inventors:

Dean Hu - Hayward CA, US
Moshe Pinto - Mountain View CA, US
Kenton Fong - Mountain View CA, US
Akshay Mavani - Los Altos CA, US
Kenneth Wu - San Francisco CA, US

Assignee:

Spiracur, Inc. - Redwood City CA

International Classification:

A61F 13/00

US Classification:

604305, 604187, 604192, 604268, 604289, 604290, 604296, 604300, 604304, 604311, 604312, 604313, 604315, 604316, 604318, 604 35, 604 36, 604119

Abstract:

A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure or space between it and the surface of a patient by forming, preferably, an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer. The collection material may comprise a material and/or a configuration that permits length changes based upon the length of the corresponding surgical wound or incision.

US Patent:

8361043, Jan 29, 2013

Filed:

Jan 7, 2010

Appl. No.:

12/683987

Inventors:

Dean Hu - San Leandro CA, US
Kenton Fong - Mountain View CA, US
Moshe Pinto - Mountain View CA, US
Kenneth Wu - San Francisco CA, US
Evan Anderson - Sunnyvale CA, US
Anthony Coxum - San Jose CA, US
Brendan Donohoe - Fairfax CA, US
Philip Hui - Foster City CA, US
Craig McGreevy - Walnut Creek CA, US

Assignee:

Spiracur Inc. - Sunnyvale CA

International Classification:

A61M 1/00

US Classification:

604319

Abstract:

Reduced pressure wound therapy is performed on a sacral region of a patient using an adhesive dressing comprising a flexible planar layer and a non-planar fold-sealing region configured to seal to the intergluteal cleft of a patient. The fold-sealing region is located on an outer edge of the adhesive dressing and comprises a tapered configuration.

US Patent:

8366693, Feb 5, 2013

Filed:

Jun 18, 2010

Appl. No.:

12/818459

Inventors:

Dean Hu - San Leandro CA, US
Kenton Fong - Mountain View CA, US
Moshe Pinto - Mountain View CA, US
Kenneth Wu - Mountain View CA, US
Craig McGreevy - Walnut Creek CA, US
Brendan Donohoe - Fairfax CA, US

Assignee:

Spiracur, Inc. - Sunnyvale CA

International Classification:

A61M 1/00

US Classification:

604319, 604187, 604192, 604268, 604290, 604296, 604300, 604304, 604305, 604311, 604312, 604313, 604315, 604316, 604318, 604 35, 604119

Abstract:

A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure, or space between it and the surface of a patient, by forming an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer. The collection material may comprise a material and/or a configuration that permits length changes based upon the length of the corresponding surgical wound or incision.

US Patent:

8409159, Apr 2, 2013

Filed:

Apr 9, 2010

Appl. No.:

12/757654

Inventors:

Dean Hu - San Leandro CA, US
Kenton Fong - Mountain View CA, US
Moshe Pinto - Mountain View CA, US
Kenneth Wu - San Francisco CA, US
Craig McGreevy - Walnut Creek CA, US
Brendan Donohoe - Fairfax CA, US

Assignee:

Spiracur, Inc. - Sunnyvale CA

International Classification:

A61M 1/00

US Classification:

604319, 604187, 604192, 604268, 604289, 604290, 604296, 604300, 604304, 604305, 604311, 604312, 604313, 604315, 604316, 604318, 604119, 604 35, 604 36

Abstract:

A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure, or space between it and the surface of a patient, by forming an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer. The collection material may comprise a material and/or a configuration that permits length changes based upon the length of the corresponding surgical wound or incision.

US Patent:

8435221, May 7, 2013

Filed:

Jun 18, 2010

Appl. No.:

12/818414

Inventors:

Dean Hu - Hayward CA, US
Moshe Pinto - Mountain View CA, US
Kenton Fong - Mountain View CA, US
Akshay Mavani - Los Altos CA, US
Kenneth Wu - San Francisco CA, US

Assignee:

Spiracur, Inc. - Sunnyvale CA

International Classification:

A61F 13/00

US Classification:

604305, 604187, 604192, 604268, 604289, 604290, 604296, 604300, 604304, 604311, 604312, 604313, 604315, 604316, 604318, 604119, 604 35, 604 36

Abstract:

A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure or space between it and the surface of a patient by forming, preferably, an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer. The collection material may comprise a material and/or a configuration that permits length changes based upon the length of the corresponding surgical wound or incision.

US Patent:

8562576, Oct 22, 2013

Filed:

Jan 11, 2011

Appl. No.:

13/004819

Inventors:

Dean Hu - San Leandro CA, US
Moshe Pinto - Mountain View CA, US
Kenton Fong - Mountain View CA, US
Akshay Mavani - Los Altos CA, US
Kenneth Wu - San Francisco CA, US

Assignee:

Spiracur, Inc. - Sunnyvale CA

International Classification:

A61F 13/00

US Classification:

604305, 604187, 604192, 604368, 604290, 604296, 604300, 604304, 604311, 604312, 604313, 604315, 604316, 604318

Abstract:

A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure or space between it and the surface of a patient by forming, preferably, an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer. The collection material may comprise a material and/or a configuration that permits length changes based upon the length of the corresponding surgical wound or incision.

US Patent:

20100137775, Jun 3, 2010

Filed:

Nov 25, 2009

Appl. No.:

12/626426

Inventors:

Dean HU - San Leandro CA, US
Kenton Fong - Mountain View CA, US
Moshe Pinto - Mountain View CA, US
Philip Hui - Boston MA, US
Kenneth Wu - San Francisco CA, US
Craig McGreevy - Walnut Creek CA, US
Evan Anderson - San Francisco CA, US

Assignee:

Spiracur Inc. - Sunnyvale CA

International Classification:

A61F 13/02
A61M 1/00

US Classification:

602 54, 604319

Abstract:

Disclosed herein is a device which is intended to deliver and maintain reduced pressure to body surfaces for application of reduced pressure wound therapy (RPWT) also known as negative pressure wound therapy (NPWT). During application of this type of therapy, a substantially airtight seal is formed around a section of tissue to be treated. This seal is formed by a dressing which provides fluid communication from a section of tissue to a reduced pressure source. Disclosed herein is a dressing system which is configured to enhance usability and functionality of this dressing. First, the system may be configured to allow full rotation of the fluid communication conduit to the reduced pressure source along the axis substantially normal to the dressing. Second, the system may be configured to include a one-way valve to prevent backflow of any drainage fluids. Third, the system may be configured with transparent windows covered by opaque flaps to allow inspection through the dressing. Fourth, the system may be configured to include an indicator which visually makes clear whether reduced pressure is being applied or not. Fifth, the system is configured to minimize the profile of the dressing system.

US Patent:

20100160901, Jun 24, 2010

Filed:

Dec 23, 2009

Appl. No.:

12/646856

Inventors:

Dean HU - San Leandro CA, US
Kenton Fong - Mountain View CA, US
Moshe Pinto - Mountain View CA, US
Philip Hui - Boston MA, US
Kenneth Wu - San Francisco CA, US
Craig McGreevy - Walnut Creek CA, US
Evan Anderson - San Francisco CA, US

International Classification:

A61M 27/00

US Classification:

604543

Abstract:

Disclosed herein is a device which is intended to deliver and maintain reduced pressure to body surfaces for application of reduced pressure wound therapy (RPWT) also known as negative pressure wound therapy (NPWT). During application of this type of therapy, a substantially airtight seal is formed around a section of tissue to be treated. This seal is formed by a dressing which provides fluid communication from a section of tissue to a reduced pressure source. Disclosed herein is a dressing system which is configured to enhance usability and functionality of this dressing. First, the system may be configured to allow full rotation of the fluid communication conduit to the reduced pressure source along the axis substantially normal to the dressing. Second, the system may be configured to include a one-way valve to prevent backflow of any drainage fluids. Third, the system may be configured with transparent windows covered by opaque flaps to allow inspection through the dressing. Fourth, the system may be configured to include an indicator which visually makes clear whether reduced pressure is being applied or not. Fifth, the system is configured to minimize the profile of the dressing system.