Patents by Inventor Walter H. Shang

Walter H. Shang 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: 20190274722
    Abstract: A valved sheath introducer for venous cannulation, including a valve, sheath, handle and cap. The valve is configured to permit safe introduction and removal of medical instruments through the sheath introducer. The valve may have one or more anchoring members and a thickened central portion through which a slit is formed. The central portion may have one or more concave surfaces and the slit can be angled with respect to the top surface of the valve. The cap is attached to the handle, compressing a portion of the valve therebetween.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Inventors: Mark A. Christensen, Walter H. Shang, Steven M. Smith, James D. Beal
  • Patent number: 10307182
    Abstract: A valved sheath introducer for venous cannulation, including a valve, sheath, handle and cap. The valve is configured to permit safe introduction and removal of medical instruments through the sheath introducer. The valve may have one or more anchoring members and a thickened central portion through which a slit is formed. The central portion may have one or more concave surfaces and the slit can be angled with respect to the top surface of the valve. The cap is attached to the handle, compressing a portion of the valve therebetween.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 4, 2019
    Assignee: C. R. Bard, Inc.
    Inventors: Mark A. Christensen, Steven M. Smith, Walter H. Shang, James D. Beal
  • Publication number: 20150289903
    Abstract: A valved sheath introducer for venous cannulation, including a valve, sheath, handle and cap. The valve is configured to permit safe introduction and removal of medical instruments through the sheath introducer. The valve may have one or more anchoring members and a thickened central portion through which a slit is formed. The central portion may have one or more concave surfaces and the slit can be angled with respect to the top surface of the valve. The cap is attached to the handle, compressing a portion of the valve therebetween.
    Type: Application
    Filed: June 24, 2015
    Publication date: October 15, 2015
    Inventors: Mark A. Christensen, Steven M. Smith, Walter H. Shang, James D. Beal
  • Patent number: 8720065
    Abstract: A valved sheath introducer for venous cannulation, including a valve, sheath, handle and cap. The valve is configured to permit safe introduction and removal of medical instruments through the sheath introducer. The valve may have one or more anchoring members and a thickened central portion through which a slit is formed. The central portion may have one or more concave surfaces and the slit can be angled with respect to the top surface of the valve. The cap is attached to the handle, compressing a portion of the valve therebetween.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: May 13, 2014
    Assignee: C. R. Bard, Inc.
    Inventors: Mark A. Christensen, Steven M. Smith, Walter H. Shang, James D. Beal
  • Publication number: 20140107619
    Abstract: A method of providing a fluid communication path to an implanted device. The method includes positioning at least a portion of a slender pointed element within a catheter, penetrating a septum of an implanted device with the slender pointed element positioned within the catheter, positioning at least a portion of the catheter within the implanted device, removing the slender pointed element from the catheter, and retaining at least a portion of the catheter within the implanted device.
    Type: Application
    Filed: December 26, 2013
    Publication date: April 17, 2014
    Applicant: C. R. BARD, INC.
    Inventors: David M. Butts, Jason R. Stats, Bret Hamatake, Sandra J. Rome, Walter H. Shang
  • Patent number: 8641676
    Abstract: An exemplary infusion system for accessing an implanted device is disclosed comprising an insertion assembly, a hub comprising a sealable path configured to receive at least a portion of the insertion assembly, a flexible catheter attached to the hub and configured to receive at least a portion of the insertion assembly, and an extension tube attached to the hub. The hub may comprise a manifold element configured to provide fluid communication between the flexible catheter and the extension tube. The hub may also comprise a septum configured to seal the sealable path upon removal of the insertion assembly from the flexible catheter. The extension tube may also be configured to receive at least a portion of the insertion assembly. Exemplary methods of providing a fluid communication path to an implanted device are also disclosed.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 4, 2014
    Assignee: C. R. Bard, Inc.
    Inventors: David M. Butts, Jason R. Stats, Bret Hamatake, Sandra J. Rome, Walter H. Shang
  • Patent number: 8430988
    Abstract: A reinforced multi-lumen catheter and method of manufacturing the same. An assembly for manufacturing the multi-lumen catheter includes a proximal catheter body substrate including a septum, a first and second distal catheter body substrate, a first and second mandrel, a reinforcing element and a sleeve. The reinforcing element is positioned over the proximal catheter body substrate and at least a proximal region of the first and second distal catheter body substrates.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: April 30, 2013
    Assignee: C. R. Bard, Inc.
    Inventors: Ryan C. Patterson, Walter H. Shang
  • Publication number: 20120191071
    Abstract: An exemplary infusion system for accessing an implanted device is disclosed comprising an insertion assembly, a hub comprising a sealable path configured to receive at least a portion of the insertion assembly, a flexible catheter attached to the hub and configured to receive at least a portion of the insertion assembly, and an extension tube attached to the hub. The hub may comprise a manifold element configured to provide fluid communication between the flexible catheter and the extension tube. The hub may also comprise a septum configured to seal the sealable path upon removal of the insertion assembly from the flexible catheter. The extension tube may also be configured to receive at least a portion of the insertion assembly. Exemplary methods of providing a fluid communication path to an implanted device are also disclosed.
    Type: Application
    Filed: April 3, 2012
    Publication date: July 26, 2012
    Applicant: C. R. BARD, INC.
    Inventors: David M. Butts, Jason R. Stats, Bret Hamatake, Sandra J. Rome, Walter H. Shang
  • Patent number: 8147455
    Abstract: An exemplary infusion system for accessing an implanted device is disclosed comprising an insertion assembly, a hub comprising a sealable path configured to receive at least a portion of the insertion assembly, a flexible catheter attached to the hub and configured to receive at least a portion of the insertion assembly, and an extension tube attached to the hub. The hub may comprise a manifold element configured to provide fluid communication between the flexible catheter and the extension tube. The hub may also comprise a septum configured to seal the sealable path upon removal of the insertion assembly from the flexible catheter. The extension tube may also be configured to receive at least a portion of the insertion assembly. Exemplary methods of providing a fluid communication path to an implanted device are also disclosed.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: April 3, 2012
    Assignee: C. R. Bard, Inc.
    Inventors: David M. Butts, Jason R. Stats, Bret Hamatake, Sandra J. Rome, Walter H. Shang
  • Patent number: 7972465
    Abstract: A reinforced multi-lumen catheter and method of manufacturing the same. An assembly for manufacturing the multi-lumen catheter includes a catheter body substrate including a septum, one or more mandrels, a reinforcing element and one or more sleeves. The septum may have a distal region with a cross-sectional thickness greater than that of a proximal region. The septum can be separately formed. The septum can be split along a length of the distal region. The reinforcing element can be positioned over at least a proximal region of the catheter body substrate.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: July 5, 2011
    Assignee: C. R. Bard, Inc.
    Inventors: Ryan C. Patterson, Walter H. Shang