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).
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Publication number: 20130012953Abstract: 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: ApplicationFiled: June 20, 2012Publication date: January 10, 2013Applicant: MTP Solutions, LLCInventors: Kwan-Ho Chan, M. Mary Sinnott, Patrick M. White
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Publication number: 20120143224Abstract: 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: ApplicationFiled: February 22, 2011Publication date: June 7, 2012Inventor: Kwan-Ho Chan
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Patent number: 8100968Abstract: 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: GrantFiled: July 24, 2002Date of Patent: January 24, 2012Inventor: Kwan-Ho Chan
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Publication number: 20110225482Abstract: 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: ApplicationFiled: March 14, 2011Publication date: September 15, 2011Applicant: WIZPATENT PTE LTDInventors: KWAN-HO CHAN, VEDVYAS JAYARAGHAVENDRAN
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Publication number: 20100324575Abstract: 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: ApplicationFiled: May 24, 2010Publication date: December 23, 2010Inventor: Kwan-Ho Chan
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Patent number: 7823061Abstract: 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: GrantFiled: May 19, 2005Date of Patent: October 26, 2010Assignee: Wizpatent Pte LtdInventors: Kwan-Ho Chan, T. Wade Fallin
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Patent number: 7749237Abstract: 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: GrantFiled: September 19, 2006Date of Patent: July 6, 2010Inventor: Kwan-Ho Chan
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Patent number: 7485136Abstract: 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: GrantFiled: April 20, 2004Date of Patent: February 3, 2009Inventor: Kwan-Ho Chan
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Publication number: 20070245257Abstract: 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: ApplicationFiled: August 23, 2006Publication date: October 18, 2007Inventors: Kwan-Ho Chan, Jeffrey Tiong, Qi He
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Publication number: 20070100357Abstract: 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: ApplicationFiled: September 19, 2006Publication date: May 3, 2007Inventor: Kwan-Ho Chan
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Patent number: 7150757Abstract: 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: GrantFiled: June 11, 2003Date of Patent: December 19, 2006Inventors: T. Wade Fallin, Kwan-Ho Chan, Margaret Mary Sinnott
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Patent number: 7108700Abstract: 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: GrantFiled: March 19, 2001Date of Patent: September 19, 2006Inventor: Kwan-Ho Chan
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Publication number: 20060154063Abstract: 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: ApplicationFiled: December 15, 2005Publication date: July 13, 2006Inventors: Kazutoshi Fujihara, Masaya Kotaki, Seeram Ramakrishna, Kwan-Ho Chan
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Publication number: 20060074438Abstract: 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: ApplicationFiled: August 23, 2005Publication date: April 6, 2006Inventor: Kwan-Ho Chan
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Publication number: 20050261891Abstract: 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: ApplicationFiled: May 19, 2005Publication date: November 24, 2005Inventors: Kwan-Ho Chan, T. Fallin
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Patent number: 6932826Abstract: 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: GrantFiled: April 9, 2002Date of Patent: August 23, 2005Inventor: Kwan-Ho Chan
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Publication number: 20050165418Abstract: 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: ApplicationFiled: March 19, 2001Publication date: July 28, 2005Inventor: Kwan-Ho Chan
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Publication number: 20050038426Abstract: 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: ApplicationFiled: April 20, 2004Publication date: February 17, 2005Inventor: Kwan-Ho Chan
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Publication number: 20040254593Abstract: 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: ApplicationFiled: June 11, 2003Publication date: December 16, 2004Applicant: Stryker EndoscopyInventors: T. Wade Fallin, Kwan-Ho Chan, Margaret Mary Sinnott
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Publication number: 20040243235Abstract: 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: ApplicationFiled: May 10, 2004Publication date: December 2, 2004Inventors: James Cho Hong Goh, Kwan-Ho Chan