Patents by Inventor Laddvanh Bouphavichith

Laddvanh Bouphavichith 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).

  • Patent number: 8308713
    Abstract: A medical catheter assembly including a multi-piece connector. In one embodiment, the medical catheter assembly is a PEG implanting assembly comprising a tubular dilator and a silicone feeding tube having an internal bolster at its rear end. The assembly also comprises a multi-piece connector comprising an inner ring, a fitting and an outer ring. The inner ring has an outer diameter greater than the inner diameter of the feeding tube and is coaxially disposed within the feeding tube by a friction-fit. The fitting comprises a front portion, an intermediate portion and a rear portion, the intermediate portion including a shoulder having an outer diameter greater than the inner diameter of the feeding tube. The front portion of the fitting is inserted through the rear end of the dilator and is secured to the dilator by a plurality of barbs.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: November 13, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Changqing Li, Gary Wood, Herbert Alan Sundheimer, Laddvanh Bouphavichith, Patrice A. Weststrate, Laurence D. Brenner
  • Patent number: 8241252
    Abstract: In one embodiment, the assembly is a low profile percutaneous endoscopic gastrostomy (PEG) device and comprises a body, a feeding tube, a cap and an inner sleeve assembly. The body includes a base portion and a sleeve portion, the base portion dimensioned to engage the skin of a patient, the sleeve portion extending upwardly from the base portion. The feeding tube has a distal end adapted to be anchored to the inside of a patient and a proximal end inserted up through the base portion and the sleeve portion. An inner sleeve, sized to engage the inside surface of the feeding tube, is removably inserted through the feeding tube, the inner sleeve having a proximal end to which a tubular fitting is secured. Food and/or medications are dispensed to the patient through the fitting and the inner sleeve and, in this manner, prevent clogging of the feeding tube.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: August 14, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Laddvanh Bouphavichith
  • Patent number: 8187253
    Abstract: A low profile adaptor for use with a medical catheter. In one embodiment, the adaptor comprises a lower connector portion, an upper connector portion and a valve. The lower connector portion comprises a tubular portion and an annular portion, the annular portion radially surrounding the tubular portion along an intermediate length thereof. A helical thread is formed on the inside surface of the tubular portion. A circular lip projects upwardly a short distance from the top surface of the annular portion. The upper connector portion comprises a tubular section adapted for insertion into the tubular portion of the lower connector portion. An external helical thread is formed on the tubular section of the upper connector portion for mating engagement with the thread on the interior of the tubular portion of the lower connector portion. The upper connector portion also includes an annular base.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: May 29, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Laddvanh Bouphavichith, Michael S. H. Chu, Laurence D. Brenner, William L. Churchill
  • Patent number: 8029462
    Abstract: A medical catheter assembly and method of using the same. In one embodiment, the assembly comprises a gastrostomy feeding tube having a proximal end, a distal end and a longitudinal bore, the distal end being shaped to include an internal bolster, the internal bolster having an anchoring state and a non-anchoring state. A suture extends from the internal bolster through the longitudinal bore to exit the tube at its proximal end, proximal displacement of the suture maintaining the internal bolster in its anchoring state. A protective sleeve made of a rigid material is removably insertable into the tube through its proximal end, the suture being inserted through the protective sleeve. The protective sleeve, when inserted into the tube, serves to protect the suture from being cut when the tube is cut to a desired length after having been implanted in a patient.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: October 4, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Laddvanh Bouphavichith
  • Patent number: 7828780
    Abstract: Low profile adaptor for use with a medical catheter, such as a gastrostomy feeding tube. In a preferred embodiment, the adaptor comprises a body having a lower portion and an upper portion. A first channel is provided in the lower portion, and a second channel is provided in the upper portion, the first and second channels being perpendicular to and in fluid communication with one another. A generally cylindrical stem is coaxially positioned within the second channel, the stem being rotatably mounted about its longitudinal axis. The stem is hollow and has an open front end, a closed rear end and a hole in its side wall, the hole being rotatably alignable with the first channel. To facilitate rotational alignment of the hole with the first channel, a stop is formed on the exterior of the stem, the stop being engageable with a surface positioned within the second channel. The front end of the stem is recessed relative to the front end of the second channel to prevent unwanted rotation of the stem.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: November 9, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Laddvanh Bouphavichith
  • Publication number: 20100076383
    Abstract: A low profile adaptor for use with a medical catheter. In one embodiment, the adaptor comprises a lower connector portion, an upper connector portion and a valve. The lower connector portion comprises a tubular portion and an annular portion, the annular portion radially surrounding the tubular portion along an intermediate length thereof. A helical thread is formed on the inside surface of the tubular portion. A circular lip projects upwardly a short distance from the top surface of the annular portion. The upper connector portion comprises a tubular section adapted for insertion into the tubular portion of the lower connector portion. An external helical thread is formed on the tubular section of the upper connector portion for mating engagement with the thread on the interior of the tubular portion of the lower connector portion. The upper connector portion also includes an annular base.
    Type: Application
    Filed: November 25, 2009
    Publication date: March 25, 2010
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Laddvanh BOUPHAVICHITH, Michael S.H. CHU, Laurence D. BRENNER, William L. CHURCHILL
  • Patent number: 7641648
    Abstract: A low profile adaptor for use with a medical catheter. In one embodiment, the adaptor comprises a lower connector portion, an upper connector portion and a valve. The lower connector portion comprises a tubular portion and an annular portion, the annular portion radially surrounding the tubular portion along an intermediate length thereof. A helical thread is formed on the inside surface of the tubular portion. A circular lip projects upwardly a short distance from the top surface of the annular portion. The upper connector portion comprises a tubular section adapted for insertion into the tubular portion of the lower connector portion. An external helical thread is formed on the tubular section of the upper connector portion for mating engagement with the thread on the interior of the tubular portion of the lower connector portion. The upper connector portion also includes an annular base.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: January 5, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Laddvanh Bouphavichith, Michael S. H. Chu, Laurence D. Brenner, William L. Churchill
  • Patent number: 7507230
    Abstract: A medical catheter assembly including a multi-piece connector. In one embodiment, the medical catheter assembly is a PEG implanting assembly comprising a tubular dilator and a silicone feeding tube having an internal bolster at its rear end. The assembly also comprises a multi-piece connector comprising an inner ring, a fitting and an outer ring. The inner ring has an outer diameter greater than the inner diameter of the feeding tube and is coaxially disposed within the feeding tube by a friction-fit. The fitting comprises a front portion, an intermediate portion and a rear portion, the intermediate portion including a shoulder having an outer diameter greater than the inner diameter of the feeding tube. The front portion of the fitting is inserted through the rear end of the dilator and is secured to the dilator by a plurality of barbs.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: March 24, 2009
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Changqing Li, Gary Wood, Herbert Alan Sundheimer, Laddvanh Bouphavichith, Patrice A. Weststrate, Laurence D. Brenner
  • Publication number: 20070088259
    Abstract: A medical catheter assembly and method of using the same. In one embodiment, the assembly comprises a gastrostomy feeding tube having a proximal end, a distal end and a longitudinal bore, the distal end being shaped to include an internal bolster, the internal bolster having an anchoring state and a non-anchoring state. A suture extends from the internal bolster through the longitudinal bore to exit the tube at its proximal end, proximal displacement of the suture maintaining the internal bolster in its anchoring state. A protective sleeve made of a rigid material is removably insertable into the tube through its proximal end, the suture being inserted through the protective sleeve. The protective sleeve, when inserted into the tube, serves to protect the suture from being cut when the tube is cut to a desired length after having been implanted in a patient.
    Type: Application
    Filed: July 31, 2006
    Publication date: April 19, 2007
    Inventors: Michael Chu, Laddvanh Bouphavichith
  • Publication number: 20060206095
    Abstract: A medical catheter assembly including a removable inner sleeve. In one embodiment, the assembly is a low profile percutaneous endoscopic gastrostomy (PEG) device and comprises a body, a clamp, a feeding tube, a cap and an inner sleeve assembly. The body includes a base portion and a sleeve portion, the base portion being dimensioned to engage the skin of a patient and having a transverse bore, the sleeve portion extending upwardly from the base portion and having a longitudinal slot aligned with the transverse bore and a transverse slot intersecting the longitudinal bore. The clamp, which is slidably mounted on the base portion and across the transverse slot of the sleeve, comprises a plate having a transverse opening. The transverse opening has a wide region and a narrow region, the two regions being alternately alignable with the longitudinal bore to open and to close, respectively, the feeding tube.
    Type: Application
    Filed: May 8, 2006
    Publication date: September 14, 2006
    Inventors: Michael Chu, Laddvanh Bouphavichith
  • Patent number: 7083595
    Abstract: A medical catheter assembly and method of using the same. In one embodiment, the assembly comprises a gastrostomy feeding tube having a proximal end, a distal end and a longitudinal bore, the distal end being shaped to include an internal bolster, the internal bolster having an anchoring state and a non-anchoring state. A suture extends from the internal bolster through the longitudinal bore to exit the tube at its proximal end, proximal displacement of the suture maintaining the internal bolster in its anchoring state. A protective sleeve made of a rigid material is removably insertable into the tube through its proximal end, the suture being inserted through the protective sleeve. The protective sleeve, when inserted into the tube, serves to protect the suture from being cut when the tube is cut to a desired length after having been implanted in a patient.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: August 1, 2006
    Assignee: Scimed Lipe Systems, Inc.
    Inventors: Michael S. H. Chu, Laddvanh Bouphavichith
  • Publication number: 20060135914
    Abstract: Low profile adaptor for use with a medical catheter, such as a gastrostomy feeding tube. In a preferred embodiment, the adaptor comprises a body having a lower portion and an upper portion. A first channel is provided in the lower portion, and a second channel is provided in the upper portion, the first and second channels being perpendicular to and in fluid communication with one another. A generally cylindrical stem is coaxially positioned within the second channel, the stem being rotatably mounted about its longitudinal axis. The stem is hollow and has an open front end, a closed rear end and a hole in its side wall, the hole being rotatably alignable with the first channel. To facilitate rotational alignment of the hole with the first channel, a stop is formed on the exterior of the stem, the stop being engageable with a surface positioned within the second channel. The front end of the stem is recessed relative to the front end of the second channel to prevent unwanted rotation of the stem.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 22, 2006
    Inventors: Michael Chu, Laddvanh Bouphavichith
  • Patent number: 7041083
    Abstract: A medical catheter assembly including a removable inner sleeve. In one embodiment, the assembly is a low profile percutaneous endoscopic gastrostomy (PEG) device and comprises a body, a clamp, a feeding tube, a cap and an inner sleeve assembly. The body includes a base portion and a sleeve portion, the base portion being dimensioned to engage the skin of a patient and having a transverse bore, the sleeve portion extending upwardly from the base portion and having a longitudinal slot aligned with the transverse bore and a transverse slot intersecting the longitudinal bore. The clamp, which is slidably mounted on the base portion and across the transverse slot of the sleeve, comprises a plate having a transverse opening. The transverse opening has a wide region and a narrow region, the two regions being alternately alignable with the longitudinal bore to open and to close, respectively, the feeding tube.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: May 9, 2006
    Assignee: Scimed Life Systems, Inc.
    Inventors: Michael S. H. Chu, Laddvanh Bouphavichith
  • Patent number: 6979322
    Abstract: Low profile adaptor for use with a medical catheter, such as a gastrostomy feeding tube. In a preferred embodiment, the adaptor comprises a body having a lower portion and an upper portion. A first channel is provided in the lower portion, and a second channel is provided in the upper portion, the first and second channels being perpendicular to and in fluid communication with one another. A generally cylindrical stem is coaxially positioned within the second channel, the stem being rotatably mounted about its longitudinal axis. The stem is hollow and has an open front end, a closed rear end and a hole in its side wall, the hole being rotatably alignable with the first channel. To facilitate rotational alignment of the hole with the first channel, a stop is formed on the exterior of the stem, the stop being engageable with a surface positioned within the second channel. The front end of the stem is recessed relative to the front end of the second channel to prevent unwanted rotation of the stem.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: December 27, 2005
    Assignee: SciMed Life Systems, Inc.
    Inventors: Michael S. H. Chu, Laddvanh Bouphavichith
  • Publication number: 20050010195
    Abstract: A low profile adaptor for use with a medical catheter. In one embodiment, the adaptor comprises a lower connector portion, an upper connector portion and a valve. The lower connector portion comprises a tubular portion and an annular portion, the annular portion radially surrounding the tubular portion along an intermediate length thereof. A helical thread is formed on the inside surface of the tubular portion. A circular lip projects upwardly a short distance from the top surface of the annular portion. The upper connector portion comprises a tubular section adapted for insertion into the tubular portion of the lower connector portion. An external helical thread is formed on the tubular section of the upper connector portion for mating engagement with the thread on the interior of the tubular portion of the lower connector portion. The upper connector portion also includes an annular base.
    Type: Application
    Filed: August 4, 2004
    Publication date: January 13, 2005
    Inventors: Laddvanh Bouphavichith, Michael Chu, Laurence Brenner, William Churchill
  • Patent number: 6814716
    Abstract: A device for externally retaining a gastrostomy feeding tube comprises a clip. In one embodiment, the clip is a generally rectangular, unitary structure shaped to include a first end wall, a second end wall spaced apart from and extending parallel to the first end wall, a lower wall extending perpendicularly between and interconnecting the first end wall and the second end wall, and an upper wall having a first end connected to the first end wall and a second end spaced apart from the second end wall. The first end wall, the second end wall, the lower wall and the upper wall together define a tubing storage cavity, with the space between the upper wall and the second end wall defining an inlet to the tubing storage cavity. The first end wall has a top surface, a bottom surface and a bore extending between said top surface and said bottom surface.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: November 9, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Laddvanh Bouphavichith, Michael S. H. Chu, Laurence D. Brenner, William L. Churchill
  • Patent number: 6802836
    Abstract: A low profile adaptor for use with a medical catheter. In one embodiment, the adaptor comprises a lower connector portion, an upper connector portion and a valve. The lower connector portion comprises a tubular portion and an annular portion, the annular portion radially surrounding the tubular portion along an intermediate length thereof. A helical thread is formed on the inside surface of the tubular portion. A circular lip projects upwardly a short distance from the top surface of the annular portion. The upper connector portion comprises a tubular section adapted for insertion into the tubular portion of the lower connector portion. An external helical thread is formed on the tubular section of the upper connector portion for mating engagement with the thread on the interior of the tubular portion of the lower connector portion. The upper connector portion also includes an annular base.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: October 12, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Laddvanh Bouphavichith, Michael S. H. Chu, Laurence D. Brenner, William Churchill
  • Publication number: 20040059293
    Abstract: A medical catheter assembly and method of using the same. In one embodiment, the assembly comprises a gastrostomy feeding tube having a proximal end, a distal end and a longitudinal bore, the distal end being shaped to include an internal bolster, the internal bolster having an anchoring state and a non-anchoring state. A suture extends from the internal bolster through the longitudinal bore to exit the tube at its proximal end, proximal displacement of the suture maintaining the internal bolster in its anchoring state. A protective sleeve made of a rigid material is removably insertable into the tube through its proximal end, the suture being inserted through the protective sleeve. The protective sleeve, when inserted into the tube, serves to protect the suture from being cut when the tube is cut to a desired length after having been implanted in a patient.
    Type: Application
    Filed: May 1, 2002
    Publication date: March 25, 2004
    Inventors: Michael S.H. Chu, Laddvanh Bouphavichith
  • Publication number: 20040044330
    Abstract: A medical catheter assembly including a multi-piece connector. In one embodiment, the medical catheter assembly is a PEG implanting assembly comprising a tubular dilator and a silicone feeding tube having an internal bolster at its rear end. The assembly also comprises a multi-piece connector comprising an inner ring, a fitting and an outer ring. The inner ring has an outer diameter greater than the inner diameter of the feeding tube and is coaxially disposed within the feeding tube by a friction-fit. The fitting comprises a front portion, an intermediate portion and a rear portion, the intermediate portion including a shoulder having an outer diameter greater than the inner diameter of the feeding tube. The front portion of the fitting is inserted through the rear end of the dilator and is secured to the dilator by a plurality of barbs.
    Type: Application
    Filed: May 16, 2003
    Publication date: March 4, 2004
    Inventors: Changqing Li, Gary Wood, Herbert Alan Sundheimer, Laddvanh Bouphavichith, Patrice A. Weststrate, Laurence D. Brenner
  • Patent number: 6666853
    Abstract: A low profile adaptor for use with a medical catheter, such as a gastrostomy feeding tube. In one embodiment, the adaptor comprises a body, a clamp and a cap. The body includes a base portion and a sleeve portion, the base portion being dimensioned to engage the skin of a patient and having a transverse bore, the sleeve portion extending upwardly from the base portion and having a longitudinal slot aligned with the transverse bore and a transverse slot intersecting the longitudinal bore. The clamp, which is slidably mounted on the base portion and across the transverse slot of the sleeve, comprises a plate having a transverse opening. The transverse opening has a wide region alignable with the longitudinal bore and correspondingly dimensioned and a narrow region alignable with the longitudinal bore.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: December 23, 2003
    Assignee: SciMed Life Systems, Inc.
    Inventors: Michael S. H. Chu, Laddvanh Bouphavichith