Patents by Inventor Nihir Patel
Nihir Patel 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: 20160317153Abstract: A surgical fastening apparatus includes a fastener retaining frame having a first annular portion having a plurality of retainers circumferentially disposed thereon and a second annular portion having a plurality of circumferentially arranged perforations. The fastener retaining frame is detachably secured to a supporting structure. After the plurality of surgical fasteners has been mated with the plurality of retainers, an annular blade severs the perforations.Type: ApplicationFiled: July 8, 2016Publication date: November 3, 2016Inventor: Nihir Patel
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Patent number: 9421013Abstract: A surgical fastening apparatus including a fastener receiving frame including a plurality of spaced apart openings formed therein and a fastener supporting member containing a plurality of surgical fasteners extending therefrom. The surgical fasteners are engagable with the plurality of openings to mate with the fastener receiving frame to fasten tissue therebetween. The fasteners are engageable with the openings in a plurality of positions dependent on a tissue thickness between the fastener receiving frame and the fastener supporting member.Type: GrantFiled: April 1, 2013Date of Patent: August 23, 2016Assignee: Covidien LPInventors: Nihir Patel, Thomas Wenchell
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Patent number: 9408603Abstract: A surgical fastening apparatus includes a fastener retaining frame having a first annular portion having a plurality of retainers circumferentially disposed thereon and a second annular portion having a plurality of circumferentially arranged perforations. The fastener retaining frame is detachably secured to a supporting structure. After the plurality of surgical fasteners has been mated with the plurality of retainers, an annular blade severs the perforations.Type: GrantFiled: March 6, 2013Date of Patent: August 9, 2016Assignee: COVIDIEN LPInventor: Nihir Patel
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Publication number: 20150374371Abstract: An adapter assembly includes an elongated body, a switch, a sensor link, and an annular member. The elongated body includes a proximal portion configured to couple to a handle assembly and a distal portion configured to couple to a surgical loading unit. The switch is configured to be toggled in response to the surgical loading unit being coupled to the distal portion of the adapter assembly. The sensor link is disposed within the distal portion of the adapter assembly and biased toward a distal position. The sensor link is longitudinally movable between a proximal position and the distal position. The annular member is disposed within the distal portion and is rotatable between a first orientation, in which the annular member prevents distal movement of the sensor link, and a second orientation, in which the sensor link moves distally to toggle the switch.Type: ApplicationFiled: April 30, 2015Publication date: December 31, 2015Inventors: Paul Richard, Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian, Nihir Patel
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Publication number: 20150272577Abstract: Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the end effector includes a first axially translatable drive member and a second axially translatable drive member, and wherein the surgical device includes a first rotatable drive shaft and a second rotatable drive shaft.Type: ApplicationFiled: June 11, 2015Publication date: October 1, 2015Inventors: Michael Zemlok, Ryan Williams, Stanislaw Marczyk, Nihir Patel, David Chowaniec
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Patent number: 9055943Abstract: Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the end effector includes a first axially translatable drive member and a second axially translatable drive member, and wherein the surgical device includes a first rotatable drive shaft and a second rotatable drive shaft.Type: GrantFiled: May 31, 2012Date of Patent: June 16, 2015Assignee: Covidien LPInventors: Michael Zemlok, Ryan Williams, Stanislaw Marczyk, Nihir Patel, David Chowaniec
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Publication number: 20150060523Abstract: A surgical stapling instrument comprising a handle assembly having a proximal end, an elongated body portion extending distally from the handle assembly, a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The shell assembly includes a shell and a staple guide housing a plurality of staples. A flexible engagement structure attaches the staple guide to the shell.Type: ApplicationFiled: November 7, 2014Publication date: March 5, 2015Inventors: Nihir Patel, Guido Pedros, Stephen R. Paul, Keith L. Milliman, Ryan Williams, Michael J. Havrilko
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Patent number: 8905289Abstract: A surgical stapling instrument comprising a handle assembly having a proximal end, an elongated body portion extending distally from the handle assembly, a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The shell assembly includes a shell and a staple guide housing a plurality of staples. A flexible engagement structure attaches the staple guide to the shell.Type: GrantFiled: February 17, 2014Date of Patent: December 9, 2014Assignee: Covidien LPInventors: Nihir Patel, Guido Pedros, Stephen R. Paul, Keith L. Milliman, Ryan Williams, Michael J. Havrilko
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Publication number: 20140158744Abstract: A surgical stapling instrument comprising a handle assembly having a proximal end, an elongated body portion extending distally from the handle assembly, a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The shell assembly includes a shell and a staple guide housing a plurality of staples. A flexible engagement structure attaches the staple guide to the shell.Type: ApplicationFiled: February 17, 2014Publication date: June 12, 2014Applicant: Covidien LPInventors: Nihir Patel, Guido Pedros, Stephen R. Paul, Keith L. Milliman, Ryan Williams, Michael J. Havrilko
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Patent number: 8684252Abstract: A surgical stapling instrument comprising a handle assembly having a proximal end, an elongated body portion extending distally from the handle assembly, a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The shell assembly includes a shell and a staple guide housing a plurality of staples. A flexible engagement structure attaches the staple guide to the shell.Type: GrantFiled: November 2, 2012Date of Patent: April 1, 2014Assignee: Covidien LPInventors: Nihir Patel, Guido Pedros, Stephen R. Paul, Keith L. Milliman, Ryan Williams, Michael J. Havrilko
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Publication number: 20130240597Abstract: A surgical stapler includes a handle assembly, an elongated body portion extending distally from the handle assembly, and a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The shell assembly includes a pusher movable distally to advance staples from the shell assembly into contact with the anvil assembly. First and second alignment pins operatively associated with the pusher have distal ends positioned distally of the pusher, the alignment pins movable between a first non-engaged position spaced from the anvil assembly and a second position in engagement with the anvil assembly.Type: ApplicationFiled: May 7, 2013Publication date: September 19, 2013Applicant: Covidien LPInventors: Keith L. Milliman, Ryan Williams, Nihir Patel
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Patent number: 8453911Abstract: A surgical stapler includes a handle assembly, an elongated body portion extending distally from the handle assembly, and a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The shell assembly includes a pusher movable distally to advance staples from the shell assembly into contact with the anvil assembly. First and second alignment pins operatively associated with the pusher have distal ends positioned distally of the pusher, the alignment pins movable between a first non-engaged position spaced from the anvil assembly and a second position in engagement with the anvil assembly.Type: GrantFiled: August 18, 2012Date of Patent: June 4, 2013Assignee: Covidien LPInventors: Keith L. Milliman, Ryan Williams, Nihir Patel
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Patent number: 8430292Abstract: A surgical fastening apparatus including a fastener receiving frame including a plurality of spaced apart openings formed therein and a fastener supporting member containing a plurality of surgical fasteners extending therefrom. The surgical fasteners are engagable with the plurality of openings to mate with the fastener receiving frame to fasten tissue therebetween. The fasteners are engageable with the openings in a plurality of positions dependent on a tissue thickness between the fastener receiving frame and the fastener supporting member.Type: GrantFiled: October 7, 2010Date of Patent: April 30, 2013Assignee: Covidien LPInventors: Nihir Patel, Thomas Wenchell
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Patent number: 8413872Abstract: A surgical fastening apparatus having a fastener retaining frame including a first annular portion having a plurality of retainers circumferentially disposed thereon and a second annular portion having a plurality of circumferentially arranged perforations. The fastener retaining frame is detachably secured to a supporting structure. After the plurality of surgical fasteners have been mated with the plurality of retainers, an annular blade severs the perforations.Type: GrantFiled: October 7, 2010Date of Patent: April 9, 2013Assignee: Covidien LPInventor: Nihir Patel
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Publication number: 20120305625Abstract: A surgical stapler includes a handle assembly, an elongated body portion extending distally from the handle assembly, and a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The shell assembly includes a pusher movable distally to advance staples from the shell assembly into contact with the anvil assembly. First and second alignment pins operatively associated with the pusher have distal ends positioned distally of the pusher, the alignment pins movable between a first non-engaged position spaced from the anvil assembly and a second position in engagement with the anvil assembly.Type: ApplicationFiled: August 18, 2012Publication date: December 6, 2012Inventors: Keith L. Milliman, Ryan Williams, Nihir Patel
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Patent number: 8322590Abstract: A surgical stapling instrument comprising a handle assembly having a proximal end, an elongated body portion extending distally from the handle assembly, a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The shell assembly includes a shell and a staple guide housing a plurality of staples. A flexible engagement structure attaches the staple guide to the shell.Type: GrantFiled: October 6, 2010Date of Patent: December 4, 2012Assignee: Covidien LPInventors: Nihir Patel, Guido Pedros, Stephen R. Paul, Keith L. Milliman, Ryan Williams, Michael J. Havrilko
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Publication number: 20120253329Abstract: Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the end effector includes a first axially translatable drive member and a second axially translatable drive member, and wherein the surgical device includes a first rotatable drive shaft and a second rotatable drive shaft.Type: ApplicationFiled: May 31, 2012Publication date: October 4, 2012Inventors: Michael Zemlok, Ryan Williams, Stanislaw Marczyk, Nihir Patel, David Chowaniec
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Patent number: 8267301Abstract: A surgical stapler comprising a handle assembly, an elongated body portion extending distally from the handle assembly, and a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The shell assembly includes a pusher movable distally to advance staples from the shell assembly into contact with the anvil assembly. First and second alignment pins operatively associated with the pusher have distal ends positioned distally of the pusher, the alignment pins movable between a first non-engaged position spaced from the anvil assembly and a second position in engagement with the anvil assembly.Type: GrantFiled: June 21, 2010Date of Patent: September 18, 2012Assignee: Tyco Healthcare Group LPInventors: Keith L. Milliman, Ryan Williams, Nihir Patel
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Publication number: 20110095069Abstract: A surgical fastening apparatus including a fastener receiving frame including a plurality of spaced apart openings formed therein and a fastener supporting member containing a plurality of surgical fasteners extending therefrom. The surgical fasteners are engagable with the plurality of openings to mate with the fastener receiving frame to fasten tissue therebetween. The fasteners are engageable with the openings in a plurality of positions dependent on a tissue thickness between the fastener receiving frame and the fastener supporting member.Type: ApplicationFiled: October 7, 2010Publication date: April 28, 2011Inventors: Nihir Patel, Thomas Wenchell
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Publication number: 20110095070Abstract: A surgical stapling instrument comprising a handle assembly having a proximal end, an elongated body portion extending distally from the handle assembly, a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The shell assembly includes a shell and a staple guide housing a plurality of staples. A flexible engagement structure attaches the staple guide to the shell.Type: ApplicationFiled: October 6, 2010Publication date: April 28, 2011Inventors: Nihir Patel, Guido Pedros, Stephen R. Paul, Keith L. Milliman, Ryan Williams, Michael J. Havrilko