Patents by Inventor John Cheer
John Cheer 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: 20230190441Abstract: A retrieval catheter operable by a single clinician that will neither displace a deployed stent nor cause undue trauma to the vascular lumen or lesion. The retrieval catheter may be sized to accommodate both a guidewire and a balloon wire. The retrieval catheter is easy to navigate through tortuous passageways and will cross a previously deployed stent or stent-graft easily with minimal risk of snagging on the deployed stent or stent graft. The sheath and dilator are adapted to allow a guidewire or balloon wire to pass through the walls of both and to allow the sheath and dilator to move axially with respect to each other.Type: ApplicationFiled: February 22, 2023Publication date: June 22, 2023Inventors: Juan C. Parodi, John Cheer, Edward H. Cully, Michael J. Vonesh, Jeremy P. Young
-
Patent number: 11607302Abstract: A retrieval catheter operable by a single clinician that will neither displace a deployed stent nor cause undue trauma to the vascular lumen or lesion. The retrieval catheter may be sized to accommodate both a guidewire and a balloon wire. The retrieval catheter is easy to navigate through tortuous passageways and will cross a previously deployed stent or stent-graft easily with minimal risk of snagging on the deployed stent or stent graft. The sheath and dilator are adapted to allow a guidewire or balloon wire to pass through the walls of both and to allow the sheath and dilator to move axially with respect to each other.Type: GrantFiled: October 18, 2019Date of Patent: March 21, 2023Assignee: W. L. Gore & Associates, Inc.Inventors: Juan C. Parodi, John Cheer, Edward H. Cully, Michael J. Vonesh, Jeremy P. Young
-
Publication number: 20200113668Abstract: A retrieval catheter operable by a single clinician that will neither displace a deployed stent nor cause undue trauma to the vascular lumen or lesion. The retrieval catheter may be sized to accommodate both a guidewire and a balloon wire. The retrieval catheter is easy to navigate through tortuous passageways and will cross a previously deployed stent or stent-graft easily with minimal risk of snagging on the deployed stent or stent graft. The sheath and dilator are adapted to allow a guidewire or balloon wire to pass through the walls of both and to allow the sheath and dilator to move axially with respect to each other.Type: ApplicationFiled: October 18, 2019Publication date: April 16, 2020Inventors: Juan C. Parodi, John Cheer, Edward H. Cully, Michael J. Vonesh, Jeremy P. Young
-
Patent number: 10449029Abstract: A retrieval catheter operable by a single clinician that will neither displace a deployed stent nor cause undue trauma to the vascular lumen or lesion. The retrieval catheter may be sized to accommodate both a guidewire and a balloon wire. The retrieval catheter is easy to navigate through tortuous passageways and will cross a previously deployed stent or stent-graft easily with minimal risk of snagging on the deployed stent or stent graft. The sheath and dilator are adapted to allow a guidewire or balloon wire to pass through the walls of both and to allow the sheath and dilator to move axially with respect to each other.Type: GrantFiled: February 6, 2017Date of Patent: October 22, 2019Assignee: W. L. Gore & Associates, Inc.Inventors: Juan C. Parodi, John Cheer, Edward H. Cully, Michael J. Vonesh, Jeremy P. Young
-
Publication number: 20170143466Abstract: A retrieval catheter operable by a single clinician that will neither displace a deployed stent nor cause undue trauma to the vascular lumen or lesion. The retrieval catheter may be sized to accommodate both a guidewire and a balloon wire. The retrieval catheter is easy to navigate through tortuous passageways and will cross a previously deployed stent or stent-graft easily with minimal risk of snagging on the deployed stent or stent graft. The sheath and dilator are adapted to allow a guidewire or balloon wire to pass through the walls of both and to allow the sheath and dilator to move axially with respect to each other.Type: ApplicationFiled: February 6, 2017Publication date: May 25, 2017Inventors: Juan C. Parodi, John Cheer, Edward H. Cully, Michael J. Vonesh, Jeremy P. Young
-
Patent number: 9597172Abstract: A retrieval catheter operable by a single clinician that will neither displace a deployed stent nor cause undue trauma to the vascular lumen or lesion. The retrieval catheter may be sized to accommodate both a guidewire and a balloon wire. The retrieval catheter is easy to navigate through tortuous passageways and will cross a previously deployed stent or stent-graft easily with minimal risk of snagging on the deployed stent or stent graft. The sheath and dilator are adapted to allow a guidewire or balloon wire to pass through the walls of both and to allow the sheath and dilator to move axially with respect to each other.Type: GrantFiled: September 28, 2007Date of Patent: March 21, 2017Assignee: W. L. Gore & Associates, Inc.Inventors: Juan C. Parodi, John Cheer, Edward H. Cully, Michael J. Vonesh, Jeremy P. Young
-
Publication number: 20090088790Abstract: A retrieval catheter operable by a single clinician that will neither displace a deployed stent nor cause undue trauma to the vascular lumen or lesion. The retrieval catheter may be sized to accommodate both a guidewire and a balloon wire. The retrieval catheter is easy to navigate through tortuous passageways and will cross a previously deployed stent or stent-graft easily with minimal risk of snagging on the deployed stent or stent graft. The sheath and dilator are adapted to allow a guidewire or balloon wire to pass through the walls of both and to allow the sheath and dilator to move axially with respect to each other.Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Inventors: Juan C. Parodi, John Cheer, Edward H. Cully, Michael J. Vonesh, Jeremy P. Young
-
Patent number: 6130406Abstract: A medical device which includes tubing which is partially reinforced and partially unreinforced. The device is formed by first providing tubing which is reinforced over its entire length, severing or weakening the reinforcing element, and removing an end portion of the reinforcing element. The reinforcing element can be severed or weakened using, for example, a laser. Any damage caused by the severing/weakening and/or removal of the reinforcing element can then be repaired by inserting the tubing into a heated die. An apparatus for performing the severing/weakening, removal and repair operations is also provided. The tube may be used to supply oxygen as a tracheal tube.Type: GrantFiled: January 8, 1998Date of Patent: October 10, 2000Assignee: Adam Spence CorporationInventor: John Cheer
-
Patent number: 5549583Abstract: A connector which includes a female part having a barrel-shaped body, with a socket extending into the female part from one end of the barrel-shaped body. The socket includes first, second, and third step portions which respectively receive a flange, a shoulder, and a stem of a male part. A lip extends radially inwardly from the barrel-shaped body of the female part, with the lip having an inner diameter smaller than the outer diameter of the flange of the male part. The male part can be inserted into the female part by inserting the flange of the male part past the lip of the female part, such that the male and female parts are snapped together. In a presently preferred embodiment, a seal ring is disposed between the male and female parts, and the seal ring is compressed in an axial direction, thereby providing the connector with a fluid tight seal.Type: GrantFiled: August 4, 1995Date of Patent: August 27, 1996Assignee: Adam Spence CorporationInventors: Adam Sanford, John Cheer, James Wood
-
Patent number: 5154701Abstract: The invention is a hemostasis valve having a main body, a proximal end cap, a register member, and a reinforcing member. The main body has a proximal end, a distal end, and a first bore having a proximal end at the proximal end of the main body and a distal end at the distal end of the main body. The first bore has a first flexure-receiving enlargement at its proximal end. The proximal end cap is joined to the proximal end of the main body and forms therewith a valve chamber. The proximal end cap has a second bore formed therethrough that is at least approximately an extension of the first bore. The register member is received in the valve chamber adjacent the proximal end cap. The register member has a proximal portion and a distal portion. The proximal portion of the register member has a third bore formed therethrough that is at least approximately an extension of the first and second bores.Type: GrantFiled: October 31, 1991Date of Patent: October 13, 1992Assignee: Adam Spence CorporationInventors: John Cheer, Kevin Powell
-
Patent number: 5102395Abstract: The invention is a hemostasis valve having a main body, a proximal end cap, a register member, and a reinforcing member. The main body has a proximal end, a distal end, and a first bore having a proximal end at the proximal end of the main body and a distal end at the distal end of the main body. The first bore has a first flexure-receiving enlargement at its proximal end. The proximal end cap is joined to the proximal end of the main body and forms therewith a valve chamber. The proximal end cap has a second bore formed therethrough that is at least approximately an extension of the first bore. The register member is received in the valve chamber adjacent the proximal end cap. The register member has a proximal portion and a distal portion. The proximal portion of the register member has a third bore formed therethrough that is at least approximately an extension of the first and second bores.Type: GrantFiled: June 26, 1991Date of Patent: April 7, 1992Assignee: Adam Spence CorporationInventors: John Cheer, Kevin Powell