Patents by Inventor Kwan-Ho Chan

Kwan-Ho Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130012953
    Abstract: Instruments and techniques to pass a suture are presented. In one illustrative example, a suture passer includes a drill guide and is able to form a tunnel in a bone and pass a suture through the tunnel so formed.
    Type: Application
    Filed: June 20, 2012
    Publication date: January 10, 2013
    Applicant: MTP Solutions, LLC
    Inventors: Kwan-Ho Chan, M. Mary Sinnott, Patrick M. White
  • Publication number: 20120143224
    Abstract: A suture passer including a longitudinally-extending hollow cannula having a central passage slidingly receivable of a surgical suture; a manually graspable handle connected to the hollow cannula for manipulation thereof, the handle having an upper surface; first guide means, connected to the upper surface of the handle, proximate a distal end of the handle, for releasably, guidingly holding the surgical suture; and second guide means, connected to the upper surface of the handle, proximate to the first guide means, for releasably, guidingly holding the surgical suture. The suture passer can be provided in a kit, for use in the suturing of internal tissue, along with a cannula bender, various hollow surgical needles and surgical suture material. The suture passer finds particular use in the suturing of internal tissues which are at least partially accessible through a body cavity, e.g. arthroscopic surgery.
    Type: Application
    Filed: February 22, 2011
    Publication date: June 7, 2012
    Inventor: Kwan-Ho Chan
  • Patent number: 8100968
    Abstract: A jamming retainer for fixing a ligament in a bone tunnel without excessive sideways pressure on the ligament that may result in tissue necrosis, the jamming retainer including a substantially rigid body with a bore or loop for receiving a ligament or tendon and a bore or ring for receiving a suture for towing the jamming retainer and ligament or tendon through a bone tunnel. Once positioned, the jamming retainer is fixed in the bone tunnel with an interference screw.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: January 24, 2012
    Inventor: Kwan-Ho Chan
  • Publication number: 20110225482
    Abstract: A method of managing and generating citations in word processing software using hyperlinks to represent in-text citations and bibliographic citations in which the hyperlinks provide the means to locate the corresponding bibliographic data for generating in-text citations and bibliographic citations in accordance with a desired citation style.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 15, 2011
    Applicant: WIZPATENT PTE LTD
    Inventors: KWAN-HO CHAN, VEDVYAS JAYARAGHAVENDRAN
  • Publication number: 20100324575
    Abstract: A suture passer comprises a longitudinally extending hollow cannula having a central passage slidingly receivable of a surgical suture; a manually graspable handle connected to the hollow cannula for manipulation thereof, the handle having an upper surface; first guide means, connected to the upper surface of the handle, proximate a distal end of the handle for releasably, guidingly, holding the surgical suture; second guide means, connected to the upper surface of the handle, proximate to the first guide means, for releasably, guidingly, holding the surgical suture. The suture passer can be provided in a kit, for use in the suturing of internal tissue, along with a cannula bender, various hollow surgical needles and surgical suture material. The suture passer finds particular use in the suturing of internal tissues which are at least partially accessible through a body cavity, e.g. arthroscopic surgery.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 23, 2010
    Inventor: Kwan-Ho Chan
  • Patent number: 7823061
    Abstract: The present invention provides a system and method for dividing patent claims into segments for display. A segmentation engine of a computer program searches for transitional phrases or other strings and divides the patent claims into a segment for each claim. The segmentation engine also searches for dependency references. A display engine of the program uses the dependency data to display the claims in a tree structure. The segmentation also divides each claim into subsegments containing the various components of the claim. The subsegments of each claim are displayed in a tree structure nested within the tree structure of the claims. A user may manipulate and/or select segmentation rules to determine how segmentation is carried out, or may alter display settings to determine which segments or subsegments are shown and which are hidden to expedite claim analysis.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: October 26, 2010
    Assignee: Wizpatent Pte Ltd
    Inventors: Kwan-Ho Chan, T. Wade Fallin
  • Patent number: 7749237
    Abstract: A suture passer comprises a longitudinally extending hollow cannula having a central passage slidingly receivable of a surgical suture; a manually graspable handle connected to the hollow cannula for manipulation thereof, the handle having an upper surface; first guide means, connected to the upper surface of the handle, proximate a distal end of the handle for releasably, guidingly, holding the surgical suture; second guide means, connected to the upper surface of the handle, proximate to the first guide means, for releasably, guidingly, holding the surgical suture. The suture passer can be provided in a kit, for use in the suturing of internal tissue, along with a cannula bender, various hollow surgical needles and surgical suture material. The suture passer finds particular use in the suturing of internal tissues which are at least partially accessible through a body cavity, e.g. arthroscopic surgery.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: July 6, 2010
    Inventor: Kwan-Ho Chan
  • Patent number: 7485136
    Abstract: A jamming retainer for fixing a ligament in a bone tunnel without excessive sideways pressure on the ligament that may result in tissue necrosis the jamming retainer including a substantially rigid body with a bore or loop for receiving a ligament or tendon and a bore or ring for receiving a suture for towing the jamming retainer and ligament or tendon through a bone tunnel. Once positioned, the jamming retainer is fixed in the bone tunnel with an interference screw.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: February 3, 2009
    Inventor: Kwan-Ho Chan
  • Publication number: 20070245257
    Abstract: An intuitive user interface is provided for carrying out operations on software objects. The software objects may be databases, and the operations may be Boolean operations. The software objects may be represented by icons, and may be stored hierarchically within a system of folders. Each of Boolean operators may also have an icon, which may operate as a folder. A first software object may be selected and activated by associating it with a desired Boolean operator, for example, by clicking and dragging the first software object onto the icon for the desired Boolean operation. A second software object may then be selected and associated with the activated first software object, for example, by clicking and dragging the second software object onto the icon for the activated first software object. The desired Boolean operation may then be performed to provide an output software object represented by an icon.
    Type: Application
    Filed: August 23, 2006
    Publication date: October 18, 2007
    Inventors: Kwan-Ho Chan, Jeffrey Tiong, Qi He
  • Publication number: 20070100357
    Abstract: A suture passer comprises a longitudinally extending hollow cannula having a central passage slidingly receivable of a surgical suture; a manually graspable handle connected to the hollow cannula for manipulation thereof, the handle having an upper surface; first guide means, connected to the upper surface of the handle, proximate a distal end of the handle for releasably, guidingly, holding the surgical suture; second guide means, connected to the upper surface of the handle, proximate to the first guide means, for releasably, guidingly, holding the surgical suture. The suture passer can be provided in a kit, for use in the suturing of internal tissue, along with a cannula bender, various hollow surgical needles and surgical suture material. The suture passer finds particular use in the suturing of internal tissues which are at least partially accessible through a body cavity, e.g. arthroscopic surgery.
    Type: Application
    Filed: September 19, 2006
    Publication date: May 3, 2007
    Inventor: Kwan-Ho Chan
  • Patent number: 7150757
    Abstract: A line lock includes a body at least partially bounding a primary passageway, a secondary passageway, and a working passageway. In one embodiment at least a portion of the working passageway is disposed between the primary passageway and the secondary passageway such that a geometric line segment extending between the primary passageway and the secondary passageway intersects with working passageway. A line extends through the primary passageway, the secondary passageway and then through the working passageway such that a relative compression section of the line is formed between the primary passageway and the secondary passageway. The compression section of the line selectively biases against a portion of the line extending out of the working passageway so as to selectively lock the line to the body when the line is tensioned against the body.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: December 19, 2006
    Inventors: T. Wade Fallin, Kwan-Ho Chan, Margaret Mary Sinnott
  • Patent number: 7108700
    Abstract: A suture passer comprises a longitudinally extending hollow cannula having a central passage slidingly receivable of a surgical suture; a manually graspable handle connected to the hollow cannula for manipulation thereof, the handle having an upper surface; first guide means, connected to the upper surface of the handle, proximate a distal end of the handle for releasably, guidingly, holding the surgical suture; second guide means, connected to the upper surface of the handle, proximate to the first guide means, for releasably, guidingly, holding the surgical suture. The suture passer can be provided in a kit, for use in the suturing of internal tissue, along with a cannula bender, various hollow surgical needles and surgical suture material. The suture passer finds particular use in the suturing of internal tissues which are at least partially accessible through a body cavity, e.g. arthroscopic surgery.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: September 19, 2006
    Inventor: Kwan-Ho Chan
  • Publication number: 20060154063
    Abstract: The present invention provides a composite nanofiber construct comprising: at least a first nanofiber comprising at least a polymer and at least a calcium salt nanoparticle, wherein the ratio of polymer to calcium salt nanoparticle is between the range of 99:1 and 10:90 weight percent; and at least a second nanofiber comprising at least a polymer and at least a calcium salt nanoparticle, wherein the ratio of polymer to calcium salt nanoparticle is between the range of 100:0 and 70:30 weight percent. The present invention also provides a method of preparing the composite nanofiber construct.
    Type: Application
    Filed: December 15, 2005
    Publication date: July 13, 2006
    Inventors: Kazutoshi Fujihara, Masaya Kotaki, Seeram Ramakrishna, Kwan-Ho Chan
  • Publication number: 20060074438
    Abstract: A suture passer comprises a longitudinally extending hollow cannula having a central passage slidingly receivable of a surgical suture; a manually graspable handle connected to the hollow cannula for manipulation thereof, the handle having an upper surface; first guide means, connected to the upper surface of the handle, proximate a proximal end of the handle for releasably, guidingly, holding the surgical suture; second guide means, connected to the upper surface of the handle, distal to the first guide means, for releasably, guidingly, holding the surgical suture. The suture passer can be provided in a kit, for use in the suturing of internal tissue, along with a cannula bender, various hollow surgical needles and surgical suture material. The suture passer finds particular use in the suturing of internal tissues which are at least partially accessible through a body cavity, e.g., arthroscopic surgery.
    Type: Application
    Filed: August 23, 2005
    Publication date: April 6, 2006
    Inventor: Kwan-Ho Chan
  • Publication number: 20050261891
    Abstract: The present invention provides a system and method for dividing patent claims into segments for display. A segmentation engine of a computer program searches for transitional phrases or other strings and divides the patent claims into a segment for each claim. The segmentation engine also searches for dependency references. A display engine of the program uses the dependency data to display the claims in a tree structure. The segmentation also divides each claim into subsegments containing the various components of the claim. The subsegments of each claim are displayed in a tree structure nested within the tree structure of the claims. A user may manipulate and/or select segmentation rules to determine how segmentation is carried out, or may alter display settings to determine which segments or subsegments are shown and which are hidden to expedite claim analysis.
    Type: Application
    Filed: May 19, 2005
    Publication date: November 24, 2005
    Inventors: Kwan-Ho Chan, T. Fallin
  • Patent number: 6932826
    Abstract: A suture passer includes a longitudinally extending hollow cannula having a central passage slidingly receivable of a surgical suture; a manually graspable handle having an upper suture and being connected to the hollow cannula for manipulation thereof; a first guide connected to the upper surface of the handle, proximate a proximal end of the handle for releasably, guidingly, holding the surgical suture; and a second guide connected to the upper surface of the handle, distal to the first guide, for releasably, guidingly, holding the surgical suture. The suture passer can be provided in a kit, for use in the suturing of internal tissue, along with a cannula bender, various hollow surgical needles and surgical suture material. The suture passer finds particular use in the suturing of internal tissues which are at least partially accessible through a body cavity, e.g., arthroscopic surgery.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: August 23, 2005
    Inventor: Kwan-Ho Chan
  • Publication number: 20050165418
    Abstract: A suture passer comprises a longitudinally extending hollow cannula having a central passage slidingly receivable of a surgical suture; a manually graspable handle connected to the hollow cannula for manipulation thereof, the handle having an upper surface; first guide means, connected to the upper surface of the handle, proximate a distal end of the handle for releasably, guidingly, holding the surgical suture; second guide means, connected to the upper surface of the handle, proximate to the first guide means, for releasably, guidingly, holding the surgical suture. The suture passer can be provided in a kit, for use in the suturing of internal tissue, along with a cannula bender, various hollow surgical needles and surgical suture material. The suture passer finds particular use in the suturing of internal tissues which are at least partially accessible through a body cavity, e.g. arthroscopic surgery.
    Type: Application
    Filed: March 19, 2001
    Publication date: July 28, 2005
    Inventor: Kwan-Ho Chan
  • Publication number: 20050038426
    Abstract: A jamming retainer for fixing a ligament in a bone tunnel without excessive sideways pressure on the ligament that may result in tissue necrosis the jamming retainer including a substantially rigid body with a bore or loop for receiving a ligament or tendon and a bore or ring for receiving a suture for towing the jamming retainer and ligament or tendon through a bone tunnel. Once positioned, the jamming retainer is fixed in the bone tunnel with an interference screw.
    Type: Application
    Filed: April 20, 2004
    Publication date: February 17, 2005
    Inventor: Kwan-Ho Chan
  • Publication number: 20040254593
    Abstract: A line lock includes a body at least partially bounding a primary passageway, a secondary passageway, and a working passageway. In one embodiment at least a portion of the working passageway is disposed between the primary passageway and the secondary passageway such that a geometric line segment extending between the primary passageway and the secondary passageway intersects with working passageway. A line extends through the primary passageway, the secondary passageway and then through the working passageway such that a relative compression section of the line is formed between the primary passageway and the secondary passageway. The compression section of the line selectively biases against a portion of the line extending out of the working passageway so as to selectively lock the line to the body when the line is tensioned against the body.
    Type: Application
    Filed: June 11, 2003
    Publication date: December 16, 2004
    Applicant: Stryker Endoscopy
    Inventors: T. Wade Fallin, Kwan-Ho Chan, Margaret Mary Sinnott
  • Publication number: 20040243235
    Abstract: An apparatus and method for the reconstruction of a previously torn ligament using a tissue-engineered ligament. The tissue-engineered ligament includes a scaffold of biocompatible material having at least one layer and forming a sheet. The scaffold is placed in a cultured medium for seeding with fibrocyte forming cells. The seeded scaffold is then placed in an incubator to increase the number of cells. The seeded scaffold is then formed into a slender structure suitable for implantation. The method of making a tissue-engineered ligament includes forming a scaffold of biocompatible material having at least one layer forming a sheet. Next, the scaffold sheet is seeded with fibrocyte forming cells. The method further includes increasing the number of cells on the seeded scaffold and forming a slender structure suitable for implantation from the scaffold.
    Type: Application
    Filed: May 10, 2004
    Publication date: December 2, 2004
    Inventors: James Cho Hong Goh, Kwan-Ho Chan