Patents by Inventor Atal C. Patel
Atal C. 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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Patent number: 11020117Abstract: A surgical stapler is provided. The stapler employs circumferential channels through which staples are deployed along an arc pathway against an anvil surface. The curved channels allow staples with relatively longer legs to be used in the stapler having a smaller diameter at the jaws. Also, by utilizing a curved path, a much larger staple can be placed in the same diameter device. Specialized curved staples for use with the stapler of the present invention are also provided. To further enable the benefits of the stapler with circumferential channels and method of staple deployment, novel jaw reinforcement structures are provided in the present invention. The jaw reinforcement structures are located towards the center or bladeline of the device instead of around the circumference as in conventional staplers, thereby clearing the outer area near the circumference of the device to provide room for longer staples and staple firing components.Type: GrantFiled: February 14, 2019Date of Patent: June 1, 2021Assignee: Applied Medical Resources CorporationInventors: Timothy M. Hopkins, Atal C. Patel, Donald L. Gadberry, Matthew M. Becerra
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Publication number: 20210121178Abstract: A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a repeatable open and close mode, a second rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a third rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include a rotational mechanism arranged to discretely position the rotatable actuation shaft in one of the rotational orientations. The rotational mechanism can be arranged for single handed operation such as by including a slidable switch or selector to rotate the actuation shaft.Type: ApplicationFiled: January 4, 2021Publication date: April 29, 2021Inventors: Atal C. Patel, Jonathan Covach, Christina N. Reed, Gary M. Johnson, Matthew M. Becerra
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Publication number: 20210121177Abstract: A surgical stapling system can include a reload shaft. The shaft can include an elongate tubular member with have a jaw assembly at the distal end thereof and a coupling collar at the proximal end thereof. The shaft assembly also includes an articulation joint coupling the jaw assembly to the distal end. A drive member and an articulation member extend within the tubular body of the shaft from the proximal end to the distal end. A firing member is connected to the distal end of the drive member such that advancement of the drive beam advances the firing member to close the jaw assemblies and fire staples from a reload positioned in the jaw assembly. The shaft assembly can also include a lockout mechanism to prevent a firing operation on a previously-fired reload or no reload.Type: ApplicationFiled: December 31, 2020Publication date: April 29, 2021Inventors: Babak Jasemian, Steven E. Decker, Atal C. Patel, Erik Nelson, Andrew J. McCarthy, Scott Zimmerman, Timothy M. Hopkins, Joshua M. Schober, Eric J. Weiss, Matthew M. Becerra, Christina N. Reed
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Publication number: 20210077101Abstract: Drive assemblies for surgical clamping and cutting instruments, as well as surgical clamping and cutting instruments using these drive assemblies, are disclosed. The drive assemblies may include a drive member, a locking member mounted to the drive member, and a spring. The drive member may be configured to releasably engage at least one of a knife or a shuttle of a surgical clamping and cutting instrument for translating the knife and/or shuttle in a distal direction through a firing stroke. The locking member may be movable from a first position permitting distal translation of the drive member through the firing stroke, and a second position inhibiting distal translation of the drive member through the firing stroke. The spring may be configured to bias the locking member toward the second position.Type: ApplicationFiled: November 25, 2020Publication date: March 18, 2021Inventors: Atal C. Patel, Charles N. Godin, Matthew Wixey
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Patent number: 10912565Abstract: A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a repeatable open and close mode, a second rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a third rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include a rotational mechanism arranged to discretely position the rotatable actuation shaft in one of the rotational orientations. The rotational mechanism can be arranged for single handed operation such as by including a slidable switch or selector to rotate the actuation shaft.Type: GrantFiled: February 12, 2020Date of Patent: February 9, 2021Assignee: Applied Medical Resources CorporationInventors: Atal C. Patel, Jonathan Covach, Christina N. Reed, Gary M. Johnson, Matthew M. Becerra
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Patent number: 10905420Abstract: A surgical stapling system can include a reload shaft. The shaft can include an elongate tubular member with have a jaw assembly at the distal end thereof and a coupling collar at the proximal end thereof. The shaft assembly also includes an articulation joint coupling the jaw assembly to the distal end. A drive member and an articulation member extend within the tubular body of the shaft from the proximal end to the distal end. A firing member is connected to the distal end of the drive member such that advancement of the drive beam advances the firing member to close the jaw assemblies and fire staples from a reload positioned in the jaw assembly. The shaft assembly can also include a lockout mechanism to prevent a firing operation on a previously-fired reload or no reload.Type: GrantFiled: April 12, 2017Date of Patent: February 2, 2021Assignee: Applied Medical Resources CorporationInventors: Babak D. Jasemian, Steven E. Decker, Atal C. Patel, Erik Nelson, Andrew J. McCarthy, Scott Zimmerman, Timothy M. Hopkins, Joshua M. Schober, Eric J. Weiss, Matthew M. Becerra, Christina N. Reed
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Publication number: 20200397430Abstract: Locking assemblies for surgical clamping and cutting instruments include a locking member and a switch. A drive member may be configured to releasably engage a knife and/or a shuttle of the surgical instrument for translating the knife and/or shuttle in a distal direction through a firing stroke. The locking member is movable from a first position permitting distal translation of the drive member through the firing stroke, and a second position inhibiting distal translation of the drive member through the firing stroke. A switch, when proximally positioned, releasably engages the locking member to maintain the locking member in the first position. The switch disengages from the locking member when the switch is moved to a distal position.Type: ApplicationFiled: February 26, 2019Publication date: December 24, 2020Inventors: Atal C Patel, Matthew Aaron Wixey
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Patent number: 10863988Abstract: Drive assemblies for surgical clamping and cutting instruments, as well as surgical clamping and cutting instruments using these drive assemblies, are disclosed. The drive assemblies may include a drive member, a locking member mounted to the drive member, and a spring. The drive member may be configured to releasably engage at least one of a knife or a shuttle of a surgical clamping and cutting instrument for translating the knife and/or shuttle in a distal direction through a firing stroke. The locking member may be movable from a first position permitting distal translation of the drive member through the firing stroke, and a second position inhibiting distal translation of the drive member through the firing stroke. The spring may be configured to bias the locking member toward the second position.Type: GrantFiled: November 29, 2018Date of Patent: December 15, 2020Assignee: Intuitive Surgical Operations, Inc.Inventors: Atal C Patel, Charles Godin, Matthew Aaron Wixey
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Publication number: 20200345364Abstract: A surgical stapler is provided that includes a spring loaded lift that automatically adjusts a staple cartridge and/or staple formation between a range of sizes. The lift is automatically released as the staple firing mechanism begins its forward translation of the firing sequence. The automatic one-way adjustment also adjusts the staple cartridge while maintaining the cartridge parallel to the anvil to provide consistent staple formations.Type: ApplicationFiled: July 17, 2020Publication date: November 5, 2020Inventors: Matthew M. Becerra, Steven E. Decker, Timothy M. Hopkins, Atal C. Patel, Babak D. Jasemian
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Patent number: 10792038Abstract: A surgical stapler is provided that includes a spring loaded lift that automatically adjusts a staple cartridge and/or staple formation between a range of sizes. The lift is automatically released as the staple firing mechanism begins its forward translation of the firing sequence. The automatic one-way adjustment also adjusts the staple cartridge while maintaining the cartridge parallel to the anvil to provide consistent staple formations.Type: GrantFiled: September 13, 2016Date of Patent: October 6, 2020Assignee: Applied Medical Resources CorporationInventors: Matthew M. Becerra, Steven E. Decker, Timothy M. Hopkins, Atal C. Patel, Babak D. Jasemian
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Publication number: 20200178961Abstract: A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a repeatable open and close mode, a second rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a third rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include a rotational mechanism arranged to discretely position the rotatable actuation shaft in one of the rotational orientations. The rotational mechanism can be arranged for single handed operation such as by including a slidable switch or selector to rotate the actuation shaft.Type: ApplicationFiled: February 12, 2020Publication date: June 11, 2020Inventors: Atal C. Patel, Jonathan Covach, Christina N. Reed, Gary M. Johnson, Matthew M. Becerra
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Publication number: 20200046354Abstract: A laparoscopic surgical stapler can include an articulation joint between an elongate shaft and a jaw assembly. The articulation joint can include a latch mechanism allowing a user to selectively allow the jaw assembly to be freely pivotable with respect to the elongate shaft in an unlatched configuration and positionable in an aligned position or one of several predetermined articulated positions in a latched configuration. The latch mechanism of the articulation joint is biased to the latched configuration and is operable in a ‘push-to-release’ manner.Type: ApplicationFiled: October 18, 2019Publication date: February 13, 2020Inventors: Steven E. Decker, Atal C. Patel, Erik D. Nelson
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Publication number: 20190350620Abstract: The surgical robotic access system provides access for robotic instruments and/or actuators including the introduction, operation and withdrawal of such robotic manipulators into a body cavity without permitting the escape of pressurized fluid or gas. The surgical robotic access system also provides a multi-faceted range of movement without touching or effecting pressure on the opening in the patient's body cavity.Type: ApplicationFiled: August 2, 2019Publication date: November 21, 2019Inventors: Atal C. Patel, Jeremy J. Albrecht
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Patent number: 10448949Abstract: A laparoscopic surgical stapler can include an articulation joint between an elongate shaft and a jaw assembly. The articulation joint can include a latch mechanism allowing a user to selectively allow the jaw assembly to be freely pivotable with respect to the elongate shaft in an unlatched configuration and positionable in an aligned position or one of several predetermined articulated positions in a latched configuration. The latch mechanism of the articulation joint is biased to the latched configuration and is operable in a ‘push-to-release’ manner.Type: GrantFiled: August 8, 2016Date of Patent: October 22, 2019Assignee: Applied Medical Resources CorporationInventors: Steven E. Decker, Atal C. Patel, Erik Nelson
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Patent number: 10405862Abstract: A laparoscopic clip applier can have a geared clip feed mechanism and a direct jaw clamping mechanism to provide smooth operation over a clip application stroke of a movable handle. The geared clip feed mechanism can include an idler gear and two drive gear racks to advance a feed slider feeding a clip to a jaw assembly. The two drive gear racks can be positioned to provide different gearing during clip feed and firing portions of the clip application stroke, allowing efficient packaging of the clip feed mechanism. A spring can rapidly withdraw the feed slider once the clip has been fed and before clamping begins. The movable handle can have a direct connection to a clamping slider to enhance user feedback during clamping of the clip. After clamping the clip, the movable handle can also assist in returning the clamping slider to an initial position for firing another clip.Type: GrantFiled: April 21, 2017Date of Patent: September 10, 2019Assignee: Applied Medical Resources CorporationInventors: Atal C. Patel, Michael Whitlock, Patrick Elliott, Andrew J. McCarthy
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Patent number: 10368908Abstract: The surgical robotic access system provides access for robotic instruments and/or actuators including the introduction, operation and withdrawal of such robotic manipulators into a body cavity without permitting the escape of pressurized fluid or gas. The surgical robotic access system also provides a multi-faceted range of movement without touching or effecting pressure on the opening in the patient's body cavity.Type: GrantFiled: August 31, 2016Date of Patent: August 6, 2019Assignee: Applied Medical Resources CorporationInventors: Atal C. Patel, Jeremy J. Albrecht
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Publication number: 20190175177Abstract: A surgical stapler is provided. The stapler employs circumferential channels through which staples are deployed along an arc pathway against an anvil surface. The curved channels allow staples with relatively longer legs to be used in the stapler having a smaller diameter at the jaws. Also, by utilizing a curved path, a much larger staple can be placed in the same diameter device. Specialized curved staples for use with the stapler of the present invention are also provided. To further enable the benefits of the stapler with circumferential channels and method of staple deployment, novel jaw reinforcement structures are provided in the present invention. The jaw reinforcement structures are located towards the center or bladeline of the device instead of around the circumference as in conventional staplers, thereby clearing the outer area near the circumference of the device to provide room for longer staples and staple firing components.Type: ApplicationFiled: February 14, 2019Publication date: June 13, 2019Inventors: Timothy M. Hopkins, Atal C. Patel, Donald L. Gadberry, Matthew M. Becerra
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Publication number: 20190167266Abstract: Drive assemblies for surgical clamping and cutting instruments, as well as surgical clamping and cutting instruments using these drive assemblies, are disclosed. The drive assemblies may include a drive member, a locking member mounted to the drive member, and a spring. The drive member may be configured to releasably engage at least one of a knife or a shuttle of a surgical clamping and cutting instrument for translating the knife and/or shuttle in a distal direction through a firing stroke. The locking member may be movable from a first position permitting distal translation of the drive member through the firing stroke, and a second position inhibiting distal translation of the drive member through the firing stroke. The spring may be configured to bias the locking member toward the second position.Type: ApplicationFiled: November 29, 2018Publication date: June 6, 2019Inventors: Atal C. Patel, Charles Godin, Matthew Aaron Wixey
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Patent number: 10245038Abstract: A surgical stapler is provided. The stapler employs circumferential channels through which staples are deployed along an arc pathway against an anvil surface. The curved channels allow staples with relatively longer legs to be used in the stapler having a smaller diameter at the jaws. Also, by utilizing a curved path, a much larger staple can be placed in the same diameter device. Specialized curved staples for use with the stapler of the present invention are also provided. To further enable the benefits of the stapler with circumferential channels and method of staple deployment, novel jaw reinforcement structures are provided in the present invention. The jaw reinforcement structures are located towards the center or bladeline of the device instead of around the circumference as in conventional staplers, thereby clearing the outer area near the circumference of the device to provide room for longer staples and staple firing components.Type: GrantFiled: November 5, 2015Date of Patent: April 2, 2019Assignee: Applied Medical Resources CorporationInventors: Timothy M. Hopkins, Atal C. Patel, Donald L. Gadberry, Matthew M. Becerra
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Publication number: 20170303921Abstract: A laparoscopic clip applier can have a geared clip feed mechanism and a direct jaw clamping mechanism to provide smooth operation over a clip application stroke of a movable handle. The geared clip feed mechanism can include an idler gear and two drive gear racks to advance a feed slider feeding a clip to a jaw assembly. The two drive gear racks can be positioned to provide different gearing during clip feed and firing portions of the clip application stroke, allowing efficient packaging of the clip feed mechanism. A spring can rapidly withdraw the feed slider once the clip has been fed and before clamping begins. The movable handle can have a direct connection to a clamping slider to enhance user feedback during clamping of the clip. After clamping the clip, the movable handle can also assist in returning the clamping slider to an initial position for firing another clip.Type: ApplicationFiled: April 21, 2017Publication date: October 26, 2017Inventors: Atal C. Patel, Michael Whitlock, Patrick Elliott, Andrew J. McCarthy