Patents by Inventor Sengkham Sirivong
Sengkham Sirivong 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: 20220387069Abstract: A catheter can restore the patency of a body lumen, for example, by removing tissue from a body lumen (e.g., a blood vessel). The catheter can be a rotational catheter having a rotatable drive shaft and a tissue-removing element secured to the drive shaft to be driven in rotation by the drive shaft. The catheter can have an abrasive burr configured to abrade tissue in a body lumen. The catheter can have an expandable tissue-removing element. The catheter can include a balloon and an inflation conduit. The catheter can also be configured to move over a guidewire through a body lumen. In one embodiment, the catheter comprises an over-the-wire, balloon-expandable, rotational, and abrasive tissue-removing catheter.Type: ApplicationFiled: May 19, 2022Publication date: December 8, 2022Inventors: Mark Schneider, Ethan Andrew Guggenheimer, Nickolas Miller, Sengkham Sirivong, Bradley Steele, Babak Tabesh, Akshay Hulasare, Julie Bu
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Patent number: 11357534Abstract: A catheter can restore the patency of a body lumen, for example, by removing tissue from a body lumen (e.g., a blood vessel). The catheter can be a rotational catheter having a rotatable drive shaft and a tissue-removing element secured to the drive shaft to be driven in rotation by the drive shaft. The catheter can have an abrasive burr configured to abrade tissue in a body lumen. The catheter can have an expandable tissue-removing element. The catheter can include a balloon and an inflation conduit. The catheter can also be configured to move over a guidewire through a body lumen. In one embodiment, the catheter comprises an over-the-wire, balloon-expandable, rotational, and abrasive tissue-removing catheter.Type: GrantFiled: November 15, 2019Date of Patent: June 14, 2022Assignee: MEDTRONIC VASCULAR, INC.Inventors: Mark Schneider, Ethan Andrew Guggenheimer, Nickolas Miller, Sengkham Sirivong, Bradley Steele, Babak Tabesh, Akshay Hulasare, Julie Bu
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Patent number: 10932799Abstract: In some examples, an embolic protection system includes an elongated member, a first filter body mechanically connected to the elongated member and defining a first filter mouth and a first filter end, the first filter mouth being one of proximal or distal to the first filter end, and a second filter body mechanically connected to the elongated member and distal to the first filter body, the second filter body defining a second filter mouth and a second filter end, the second filter mouth being the one of proximal or distal to the second filter end. In some instances, at least a section of the elongated member between the first and second filter bodies may be flexible, and may be configured to conform to a shape of an arch between two vessels of a patient.Type: GrantFiled: November 14, 2016Date of Patent: March 2, 2021Assignee: Covidien LPInventor: Sengkham Sirivong
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Publication number: 20200155194Abstract: A catheter can restore the patency of a body lumen, for example, by removing tissue from a body lumen (e.g., a blood vessel). The catheter can be a rotational catheter having a rotatable drive shaft and a tissue-removing element secured to the drive shaft to be driven in rotation by the drive shaft. The catheter can have an abrasive burr configured to abrade tissue in a body lumen. The catheter can have an expandable tissue-removing element. The catheter can include a balloon and an inflation conduit. The catheter can also be configured to move over a guidewire through a body lumen. In one embodiment, the catheter comprises an over-the-wire, balloon-expandable, rotational, and abrasive tissue-removing catheter.Type: ApplicationFiled: November 15, 2019Publication date: May 21, 2020Inventors: Mark Schneider, Ethan Andrew Guggenheimer, Nickolas Miller, Sengkham Sirivong, Bradley Steele, Babak Tabesh, Akshay Hulasare, Julie Bu
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Publication number: 20200138558Abstract: A device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient's body, comprising: a filter element being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, and an elongate support member, the filter being carried on a portion of the elongate support member, wherein the filter element has proximal and distal portions and a central portion, the filter element having a shape in the expanded configuration which defines a cavity having a proximal facing opening, and wherein the proximal portion of the filter element comprises a radiopaque element in the form of a discontinuous loop extending around a portion of a perimeter of the proximal facing opening, the discontinuous loop having a gap and the gap being proximate to the elongate support member.Type: ApplicationFiled: December 18, 2019Publication date: May 7, 2020Inventors: Steven G. Zaver, Sengkham Sirivong, Christopher G. Quinn, Earl H. Slee, Linda J. Anderson
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Patent number: 10548707Abstract: A device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient's body, comprising: a filter element being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, and an elongate support member, the filter being carried on a portion of the elongate support member, wherein the filter element has proximal and distal portions and a central portion, the filter element having a shape in the expanded configuration which defines a cavity having a proximal facing opening, and wherein the proximal portion of the filter element comprises a radiopaque element in the form of a discontinuous loop extending around a portion of a perimeter of the proximal facing opening, the discontinuous loop having a gap and the gap being proximate to the elongate support member.Type: GrantFiled: May 18, 2015Date of Patent: February 4, 2020Assignee: Covidien LPInventors: Steven Zaver, Sengkham Sirivong, Christopher Quinn, Earl Slee, Linda Anderson
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Patent number: 10537418Abstract: A catheter compiling a housing portion defining an interior cavity and the housing portion comprising a housing member having an interior space dimensioned for housing an indwelling medical device. The elongated member comprises a lumen extending at least from an exit port to a distal port, the housing member is disposed within the lumen, and the lumen is dimensioned in the housing portion to receive a guidewire outside of the interior space of the housing member. A medical device for filtering emboli from blood flowing in a blood vessel of patient comprising an elongate support member and an elongate side branch member connected to the elongate support member. The filter element is attached to the elongate side branch member by a proximal filter element slider, and the elongate side branch member is adapted to maintain the filter element centered in the vessel.Type: GrantFiled: August 31, 2016Date of Patent: January 21, 2020Assignee: Covidien LPInventors: Cathleen von Lehe, Sengkham Sirivong
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Publication number: 20180132873Abstract: In some examples, an embolic protection system includes an elongated member, a first filter body mechanically connected to the elongated member and defining a first filter mouth and a first filter end, the first filter mouth being one of proximal or distal to the first filter end, and a second filter body mechanically connected to the elongated member and distal to the first filter body, the second filter body defining a second filter mouth and a second filter end, the second filter mouth being the one of proximal or distal to the second filter end. In some instances, at least a section of the elongated member between the first and second filter bodies may be flexible, and may be configured to conform to a shape of an arch between two vessels of a patient.Type: ApplicationFiled: November 14, 2016Publication date: May 17, 2018Inventor: Sengkham Sirivong
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Publication number: 20170049551Abstract: A catheter compiling a housing portion defining an interior cavity and the housing portion comprising a housing member having an interior space dimensioned for housing an indwelling medical device. The elongated member comprises a lumen extending at least from an exit port to a distal port, the housing member is disposed within the lumen, and the lumen is dimensioned in the housing portion to receive a guidewire outside of the interior space of the housing member. A medical device for filtering emboli from blood flowing in a blood vessel of patient comprising an elongate support member and an elongate side branch member connected to the elongate support member. The filter element is attached to the elongate side branch member by a proximal filter element slider, and the elongate side branch member is adapted to maintain the filter element centered in the vessel.Type: ApplicationFiled: August 31, 2016Publication date: February 23, 2017Inventors: Cathleen von Lehe, Sengkham Sirivong
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Patent number: 9456889Abstract: A catheter comprising a housing portion defining an interior cavity and the housing portion comprising a housing member having an interior space dimensioned for housing an indwelling medical device. The elongated member comprises a lumen extending at least from an exit port to a distal port, the housing member is disposed within the lumen, and the lumen is dimensioned in the housing portion to receive a guidewire outside of the interior space of the housing member. A medical device for filtering emboli from blood flowing in a blood vessel of patient comprising an elongate support member and an elongate side branch member connected to the elongate support member. The filter element is attached to the elongate side branch member by a proximal filter element slider, and the elongate side branch member is adapted to maintain the filter element centered in the vessel.Type: GrantFiled: May 31, 2011Date of Patent: October 4, 2016Assignee: Covidien LPInventors: Cathleen von Lehe, Sengkham Sirivong
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Publication number: 20150327977Abstract: A device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient's body, comprising: a filter element being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, and an elongate support member, the filter being carried on a portion of the elongate support member, wherein the filter element has proximal and distal portions and a central portion, the filter element having a shape in the expanded configuration which defines a cavity having a proximal facing opening, and wherein the proximal portion of the filter element comprises a radiopaque element in the form of a discontinuous loop extending around a portion of a perimeter of the proximal facing opening, the discontinuous loop having a gap and the gap being proximate to the elongate support member.Type: ApplicationFiled: May 18, 2015Publication date: November 19, 2015Inventors: Steven Zaver, Sengkham Sirivong, Christopher Quinn, Earl Slee, Linda Anderson
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Patent number: 9089404Abstract: A device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient's body. The device including a filter element being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, and an elongate support member, the filter being carried on a portion of the elongate support member. The filter element has proximal and distal portions and a central portion, the filter element having a shape in the expanded configuration which defines a cavity having a proximal facing opening, and the proximal portion of the filter element includes a radiopaque element in the form of a discontinuous loop extending around a portion of a perimeter of the proximal facing opening, the discontinuous loop having a gap and the gap being proximate to the elongate support member.Type: GrantFiled: March 28, 2007Date of Patent: July 28, 2015Assignee: Covidien LPInventors: Steven G. Zaver, Sengkham Sirivong, Christopher G. Quinn, Earl H. Slee, Linda J. Anderson
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Patent number: 8167902Abstract: Catheter having a first elongate tubular body having a lumen, a second elongate tubular body having a lumen, and an elongate member. The elongate member joins the first and second elongate tubular bodies. The first tubular body is fixedly attached on the distal portion of the elongate member, and the second elongate tubular body is disposed on the elongate member is slidable along a portion of the elongate member. The second elongate tubular body can be in a first position so that the first and second tubular bodies are not adjacent to each other and can be in a second position so that the first and second tubular bodies are adjacent to each other. The catheter may have a locking mechanism that can lock the first and second elongate tubular bodies to each other so that the lumens of the first and second elongate tubular bodies form one continuous lumen.Type: GrantFiled: August 10, 2007Date of Patent: May 1, 2012Assignee: Tyco Healthcare Group LPInventors: Christopher G. Quinn, Sara K. Bakker, Steven G. Zaver, Kevin W. Anderson, Sengkham Sirivong
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Publication number: 20110230861Abstract: A catheter comprising a housing portion defining an interior cavity and the housing portion comprising a housing member having an interior space dimensioned for housing an indwelling medical device. The elongated member comprises a lumen extending at least from an exit port to a distal port, the housing member is disposed within the lumen, and the lumen is dimensioned in the housing portion to receive a guidewire outside of the interior space of the housing member. A medical device for filtering emboli from blood flowing in a blood vessel of patient comprising an elongate support member and an elongate side branch member connected to the elongate support member. The filter element is attached to the elongate side branch member by a proximal filter element slider, and the elongate side branch member is adapted to maintain the filter element centered in the vessel.Type: ApplicationFiled: May 31, 2011Publication date: September 22, 2011Applicant: TYCO HEALTHCARE GROUP LPInventors: Cathleen von Lehe, Sengkham Sirivong
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Patent number: 7955351Abstract: A catheter comprising a housing portion defining an interior cavity and the housing portion comprising a housing member having an interior space dimensioned for housing an indwelling medical device. The elongated member comprises a lumen extending at least from an exit port to a distal port, the housing member is disposed within the lumen, and the lumen is dimensioned in the housing portion to receive a guidewire outside of the interior space of the housing member. A medical device for filtering emboli from blood flowing in a blood vessel of patient comprising an elongate support member and an elongate side branch member connected to the elongate support member. The filter element is attached to the elongate side branch member by a proximal filter element slider, and the elongate side branch member is adapted to maintain the filter element centered in the vessel.Type: GrantFiled: February 17, 2006Date of Patent: June 7, 2011Assignee: Tyco Healthcare Group LPInventors: Cathleen von Lehe, Sengkham Sirivong
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Publication number: 20080039817Abstract: Catheter having a first elongate tubular body having a lumen, a second elongate tubular body having a lumen, and an elongate member. The elongate member joins the first and second elongate tubular bodies. The first tubular body is fixedly attached on the distal portion of the elongate member, and the second elongate tubular body is disposed on the elongate member is slidable along a portion of the elongate member. The second elongate tubular body can be in a first position so that the first and second tubular bodies are not adjacent to each other and can be in a second position so that the first and second tubular bodies are adjacent to each other. The catheter may have a locking mechanism that can lock the first and second elongate tubular bodies to each other so that the lumens of the first and second elongate tubular bodies form one continuous lumen.Type: ApplicationFiled: August 10, 2007Publication date: February 14, 2008Inventors: Christopher G. Quinn, Sara K. Bakker, Steven G. Zaver, Kevin W. Anderson, Sengkham Sirivong
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Publication number: 20070233175Abstract: A device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient's body, comprising: a filter element being expandable from a collapsed configuration when the filter element is restrained to an expanded configuration when the filter element is unrestrained, and an elongate support member, the filter being carried on a portion of the elongate support member, wherein the filter element has proximal and distal portions and a central portion, the filter element having a shape in the expanded configuration which defines a cavity having a proximal facing opening, and wherein the proximal portion of the filter element comprises a radiopaque element in the form of a discontinuous loop extending around a portion of a perimeter of the proximal facing opening, the discontinuous loop having a gap and the gap being proximate to the elongate support member.Type: ApplicationFiled: March 28, 2007Publication date: October 4, 2007Inventors: Steven G. Zaver, Sengkham Sirivong, Christopher G. Quinn, Earl H. Slee, Linda J. Anderson
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Publication number: 20060190025Abstract: A catheter comprising a housing portion defining an interior cavity and the housing portion comprising a housing member having an interior space dimensioned for housing an indwelling medical device. The elongated member comprises a lumen extending at least from an exit port to a distal port, the housing member is disposed within the lumen, and the lumen is dimensioned in the housing portion to receive a guidewire outside of the interior space of the housing member. A medical device for filtering emboli from blood flowing in a blood vessel of patient comprising an elongate support member and an elongate side branch member connected to the elongate support member. The filter element is attached to the elongate side branch member by a proximal filter element slider, and the elongate side branch member is adapted to maintain the filter element centered in the vessel.Type: ApplicationFiled: February 17, 2006Publication date: August 24, 2006Inventors: Cathleen Lehe, Sengkham Sirivong