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).
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Publication number: 20190274722Abstract: 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: ApplicationFiled: May 24, 2019Publication date: September 12, 2019Inventors: Mark A. Christensen, Walter H. Shang, Steven M. Smith, James D. Beal
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Patent number: 10307182Abstract: 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: GrantFiled: June 24, 2015Date of Patent: June 4, 2019Assignee: C. R. Bard, Inc.Inventors: Mark A. Christensen, Steven M. Smith, Walter H. Shang, James D. Beal
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Publication number: 20150289903Abstract: 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: ApplicationFiled: June 24, 2015Publication date: October 15, 2015Inventors: Mark A. Christensen, Steven M. Smith, Walter H. Shang, James D. Beal
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Patent number: 8720065Abstract: 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: GrantFiled: March 29, 2012Date of Patent: May 13, 2014Assignee: C. R. Bard, Inc.Inventors: Mark A. Christensen, Steven M. Smith, Walter H. Shang, James D. Beal
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Publication number: 20140107619Abstract: 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: ApplicationFiled: December 26, 2013Publication date: April 17, 2014Applicant: C. R. BARD, INC.Inventors: David M. Butts, Jason R. Stats, Bret Hamatake, Sandra J. Rome, Walter H. Shang
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Patent number: 8641676Abstract: 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: GrantFiled: April 3, 2012Date of Patent: February 4, 2014Assignee: C. R. Bard, Inc.Inventors: David M. Butts, Jason R. Stats, Bret Hamatake, Sandra J. Rome, Walter H. Shang
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Patent number: 8430988Abstract: 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: GrantFiled: April 15, 2011Date of Patent: April 30, 2013Assignee: C. R. Bard, Inc.Inventors: Ryan C. Patterson, Walter H. Shang
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Publication number: 20120191071Abstract: 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: ApplicationFiled: April 3, 2012Publication date: July 26, 2012Applicant: C. R. BARD, INC.Inventors: David M. Butts, Jason R. Stats, Bret Hamatake, Sandra J. Rome, Walter H. Shang
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Patent number: 8147455Abstract: 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: GrantFiled: April 27, 2006Date of Patent: April 3, 2012Assignee: C. R. Bard, Inc.Inventors: David M. Butts, Jason R. Stats, Bret Hamatake, Sandra J. Rome, Walter H. Shang
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Patent number: 7972465Abstract: 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: GrantFiled: February 2, 2010Date of Patent: July 5, 2011Assignee: C. R. Bard, Inc.Inventors: Ryan C. Patterson, Walter H. Shang