Patents by Inventor Venkataramanan Mandakolathur Vasudevan
Venkataramanan Mandakolathur Vasudevan 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: 20210290226Abstract: In various embodiments, a tissue thickness compensator can comprise a compressible extracellular matrix and a bioabsorbable material dispersed within the extracellular matrix, wherein the bioapsorption of the bioabsorbable material is configured to leave behind channels in the extracellular matrix. The tissue thickness compensator can also comprise generation means for generating the ingrowth of tissue into the channels. In at least one embodiment, the tissue thickness compensator can comprise dissolvable wicking members which, when dissolved, can leave behind channels in the tissue thickness compensator. In certain embodiments, the tissue thickness compensator can comprise at least one rupturable capsule.Type: ApplicationFiled: March 9, 2021Publication date: September 23, 2021Inventors: Venkataramanan Mandakolathur Vasudevan, Cortney E. Henderson, Taylor W. Aronhalt, Jeffrey L. Aldridge, Charles J. Scheib, Chunlin Yang, Christopher J. Schall, Chester O. Baxter, III, Frederick E. Shelton, IV, Joseph H. Contiliano, Tamara S. Widenhouse, Donna L. Korvick
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Publication number: 20190269400Abstract: In various embodiments, a tissue thickness compensator can comprise a compressible extracellular matrix and a bioabsorbable material dispersed within the extracellular matrix, wherein the bioapsorption of the bioabsorbable material is configured to leave behind channels in the extracellular matrix. The tissue thickness compensator can also comprise generation means for generating the ingrowth of tissue into the channels. In at least one embodiment, the tissue thickness compensator can comprise dissolvable wicking members which, when dissolved, can leave behind channels in the tissue thickness compensator. In certain embodiments, the tissue thickness compensator can comprise at least one rupturable capsule.Type: ApplicationFiled: December 27, 2018Publication date: September 5, 2019Inventors: Venkataramanan Mandakolathur Vasudevan, Cortney E. Henderson, Taylor W. Aronhalt, Jeffrey L. Aldridge, Charles J. Scheib, Chunlin Yang, Christopher J. Schall, Chester O. Baxter, III, Frederick E. Shelton, IV, Joseph H. Contiliano, Tamara Widenhouse, Donna L. Korvick
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Patent number: 10226246Abstract: A surgical instrument includes a handle assembly having a trigger operable to fire a staple driver to staple tissue. The instrument includes a pointed rod to which an anvil may be coupled. An anvil detection feature is included to determine when the anvil is coupled to the rod. In some versions, the anvil detection feature comprises a translatable rod that inhibits a lockout feature from disengaging. In other versions, an anvil sensing tube is disposed about the pointed rod and interferes with actuation of the trigger in a first position. A recess in the tube permits trigger to actuate when the anvil sensing tube is in the second position. Alternatively, a resilient tab is coupled to the pointed rod and resists actuation of the staple driver. A trigger lockout assembly may include a spring-loaded button that “pops” out when a push rod is actuated, thereby freeing a pivotable lockout feature.Type: GrantFiled: October 13, 2015Date of Patent: March 12, 2019Assignee: Ethicon LLCInventors: Kevin D. Felder, John F. Cummings, Joseph P. Schowalter, Patrick J. Swindon, Johnny H. Alexander, III, Patrick A. Weizman, Cory G. Kimball, Edward G. Chekan, Joseph E. Young, Christopher C. Miller, Barry T. Jamison, John V. Hunt, Kent P. Baker, Cortney E. Henderson, Chester O. Baxter, III, Jerome R. Morgan, Adam R. Dunki-Jacobs, Venkataramanan Mandakolathur Vasudevan, Carl J. Shurtleff, Julia F. Serber
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Publication number: 20180168587Abstract: The present utility model provides a cartridge assembly comprising a cartridge having a plurality of staple-containing slots for containing surgical staplers; a stapler driver with a plurality of tips for driving the surgical staplers; and a casing for housing the stapler driver, wherein the casing is provided with openings for delivering a medium in its side area corresponding to the plurality of tips.Type: ApplicationFiled: February 8, 2018Publication date: June 21, 2018Applicant: Ethicon LLCInventors: Siliang Chen, Venkataramanan Mandakolathur Vasudevan
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Patent number: 9795383Abstract: A tissue thickness compensator comprising at least one woven lattice can be positioned in the end effector of a surgical instrument. A fastener cartridge that is positioned in the end effector can comprise at least one cavity configured to receive a fastener. The fastener can be moveable between an initial position, wherein the fastener is at least partially position in a cavity, and a fired position, wherein the fastener is configured to compress a woven lattice of the tissue thickness compensator. The woven lattice can comprise a resilient material such that compression of the woven lattice generates a restoring force. The woven lattice can also comprise an axis that can laterally traverse the fastener cartridge, diagonally traverse the fastener cartridge, or intersect a deck surface of the fastener cartridge. The woven lattice can comprise a hydrophilic substance, which can expand when the woven lattice is severed by a cutting element.Type: GrantFiled: September 22, 2016Date of Patent: October 24, 2017Assignee: Ethicon LLCInventors: Jeffrey L. Aldridge, Chunlin Yang, Charles J. Scheib, Venkataramanan Mandakolathur Vasudevan, Taylor W. Aronhalt, Joseph H. Contiliano, Michael S. Cropper, Eugene L. Timperman, Cortney E. Henderson, Katherine J. Schmid, Frederick E. Shelton, IV
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Patent number: 9717496Abstract: A surgical stapling instrument for performing a circular anastomosis comprises a stapling head assembly, an actuator handle assembly, a shaft assembly, a safety latch, and a locking member. The stapling head assembly includes an anvil that moves relative to a staple holder and a staple driver to drive staples from the staple holder into tissue and against the anvil. The actuator handle assembly has a first actuator that controls motion of the anvil and a second actuator that controls motion of the staple driver. The shaft assembly couples the stapling head assembly to the actuator handle assembly. The safety latch prevents operation of the second actuator when the gap between the anvil and staple holder is outside a predetermined range. The locking member is configured to prevent adjustment of the anvil gap after the desired staple height has been set inside the predetermined range.Type: GrantFiled: November 18, 2015Date of Patent: August 1, 2017Assignee: Ethicon LLCInventors: Venkataramanan Mandakolathur Vasudevan, Edward G. Chekan, Kevin D. Felder, Jerome R. Morgan, Carl J. Shurtleff, IV, Johnny H. Alexander, III, John F. Cummings, Christopher C. Miller
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Patent number: 9549738Abstract: A surgical instrument includes a body, a pivotable trigger, and a ratcheting assembly. The ratcheting assembly may include a rotary ratchet coupled to the trigger and a pawl coupled to the body. The rotary ratchet may further include a ramp that disengages the ratchet from the pawl. A release feature may be included to selectively disengage a second member of the ratcheting assembly from a first member. In some versions, the release feature may include a rotation knob or a slidable handle. In another configuration, the ratcheting assembly may have a first member coupled to an actuator and a second member coupled to the body. The assembly may include a lock member coupled to the body that selectively engages a plurality of teeth disposed on the actuator. Alternatively, the assembly may include a pivotable pawl coupled to the actuator that engages one or more notches formed in the body.Type: GrantFiled: January 5, 2012Date of Patent: January 24, 2017Assignee: Ethicon Endo-Surgery, LLCInventors: Venkataramanan Mandakolathur Vasudevan, Adam R. Dunki-Jacobs, Chester O. Baxter, III, Jerome R. Morgan, Cortney E. Henderson, Christopher C. Miller, Kent P. Baker, John V. Hunt, Barry T. Jamison, Patrick A. Weizman, Joseph E. Young, Cory G. Kimball, Carl J. Shurtleff, Edward G. Chekan, Kevin D. Felder, Johnny H. Alexander, III, Patrick J. Swindon, Joseph P. Schowalter, John F. Cummings
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Publication number: 20170007253Abstract: A tissue thickness compensator comprising at least one woven lattice can be positioned in the end effector of a surgical instrument. A fastener cartridge that is positioned in the end effector can comprise at least one cavity configured to receive a fastener. The fastener can be moveable between an initial position, wherein the fastener is at least partially position in a cavity, and a fired position, wherein the fastener is configured to compress a woven lattice of the tissue thickness compensator. The woven lattice can comprise a resilient material such that compression of the woven lattice generates a restoring force. The woven lattice can also comprise an axis that can laterally traverse the fastener cartridge, diagonally traverse the fastener cartridge, or intersect a deck surface of the fastener cartridge. The woven lattice can comprise a hydrophilic substance, which can expand when the woven lattice is severed by a cutting element.Type: ApplicationFiled: September 22, 2016Publication date: January 12, 2017Inventors: Jeffrey L. Aldridge, Chunlin Yang, Charles J. Scheib, Venkataramanan Mandakolathur Vasudevan, Taylor W. Aronhalt, Joseph H. Contiliano, Michael S. Cropper, Eugene L. Timperman, Cortney E. Henderson, Katherine J. Schmid, Frederick E. Shelton, IV
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Patent number: 9480476Abstract: A tissue thickness compensator comprising at least one woven lattice can be positioned in the end effector of a surgical instrument. A fastener cartridge that is positioned in the end effector can comprise at least one cavity configured to receive a fastener. The fastener can be moveable between an initial position, wherein the fastener is at least partially position in a cavity, and a fired position, wherein the fastener is configured to compress a woven lattice of the tissue thickness compensator. The woven lattice can comprise a resilient material such that compression of the woven lattice generates a restoring force. The woven lattice can also comprise an axis that can laterally traverse the fastener cartridge, diagonally traverse the fastener cartridge, or intersect a deck surface of the fastener cartridge. The woven lattice can comprise a hydrophilic substance, which can expand when the woven lattice is severed by a cutting element.Type: GrantFiled: March 28, 2012Date of Patent: November 1, 2016Assignee: Ethicon Endo-Surgery, LLCInventors: Jeffrey L. Aldridge, Chunlin Yang, Charles J. Scheib, Venkataramanan Mandakolathur Vasudevan, Taylor W. Aronhalt, Joseph H. Contiliano, Michael S. Cropper, Eugene L. Timperman, Cortney E. Henderson, Katherine J. Schmid, Frederick E. Shelton, IV
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Publication number: 20160199063Abstract: In various embodiments, a tissue thickness compensator can comprise a compressible extracellular matrix and a bioabsothable material dispersed within the extracellular matrix, wherein the bioapsorption of the bioabsorbable material is configured to leave behind channels in the extracellular matrix. The tissue thickness compensator can also comprise generation means for generating the ingrowth of tissue into the channels. In at least one embodiment, the tissue thickness compensator can comprise dissolvable wicking members which, when dissolved, can leave behind channels in the tissue thickness compensator. In certain embodiments, the tissue thickness compensator can comprise at least one rupturable capsule.Type: ApplicationFiled: January 11, 2016Publication date: July 14, 2016Inventors: Venkataramanan Mandakolathur Vasudevan, Cortney E. Henderson, Taylor W. Aronhalt, Jeffrey L. Aldridge, Charles J. Scheib, Chunlin Yang, Christopher J. Schall, Chester O. Baxter, III, Frederick E. Shelton, Joseph H. Contiliano, Tamara Widenhouse, Donna L. Korvick
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Patent number: 9332974Abstract: A tissue thickness compensator may generally comprise a first layer comprising a first medicament, a second layer comprising a second medicament, and a third layer comprising a third medicament. The tissue thickness compensator may comprise a first layer comprising a first medicament, a second layer comprising a second medicament, and a reservoir comprising a third medicament disposed within the reservoir. The medicaments may be independently selected from a haemostatic agent, an anti-inflammatory agent, an antibiotic agent, anti-microbial agent, an anti-adhesion agent, an anti-coagulant agent, a pharmaceutically active agent, a matrix metalloproteinase inhibitor, and combinations thereof. Articles of manufacture comprising the tissue thickness compensator and methods of making and using the tissue thickness compensator are also described.Type: GrantFiled: March 28, 2012Date of Patent: May 10, 2016Assignee: Ethicon Endo-Surgery, LLCInventors: Cortney E. Henderson, Taylor W. Aronhalt, Chunlin Yang, Charles J. Scheib, Venkataramanan Mandakolathur Vasudevan, Mark D. Timmer, Richard W. Timm, Tamara Widenhouse, Steven G. Hall
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Patent number: 9320518Abstract: A staple cartridge assembly for use with a surgical stapler. The assembly has a cartridge body having a support portion with a plurality of staple cavities with openings. There is also a plurality of staples, wherein at least a portion of each the staple is removably stored within a the staple cavity. Each the staple is movable between an unfired position and a fired position, and is deformable between an unfired configuration and a fired configuration. The assembly also includes a compressible tissue thickness compensator configured to be captured within the staples. The compressible tissue thickness compensator at least partially covers the staple cavity openings. The compressed tissue thickness compensator is configured to assume different compressed heights within different the staples. The compressible tissue thickness compensator comprising a lyophilized foam having an oxygen generating agent embedded therein.Type: GrantFiled: June 25, 2012Date of Patent: April 26, 2016Assignee: Ethicon Endo-Surgery, LLCInventors: Cortney E. Henderson, Taylor W. Aronhalt, Chunlin Yang, Charles J. Scheib, Venkataramanan Mandakolathur Vasudevan, Andrew C. Yoo, Frederick E. Shelton, IV
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Patent number: 9301752Abstract: A tissue thickness compensator can comprise a plurality of layers. Various embodiments are disclosed herein for manufacturing a tissue thickness compensator. In certain embodiments, a tissue thickness compensator can comprise at least one medicament tube, capsule, and/or packet contained therein.Type: GrantFiled: March 28, 2012Date of Patent: April 5, 2016Assignee: Ethicon Endo-Surgery, LLCInventors: Venkataramanan Mandakolathur Vasudevan, Taylor W. Aronhalt, Jeffrey L. Aldridge, Charles J. Scheib, Chunlin Yang, Christopher J. Schall, Chester O. Baxter, III, Iksoo Chun, Rao S. Bezwada, Sean P. Conlon, Michael S. Cropper, Joshua R. Uth, Richard L. Leimbach, Donna L. Korvick
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Publication number: 20160066906Abstract: A surgical stapling instrument for performing a circular anastomosis comprises a stapling head assembly, an actuator handle assembly, a shaft assembly, a safety latch, and a locking member. The stapling head assembly includes an anvil that moves relative to a staple holder and a staple driver to drive staples from the staple holder into tissue and against the anvil. The actuator handle assembly has a first actuator that controls motion of the anvil and a second actuator that controls motion of the staple driver. The shaft assembly couples the stapling head assembly to the actuator handle assembly. The safety latch prevents operation of the second actuator when the gap between the anvil and staple holder is outside a predetermined range. The locking member is configured to prevent adjustment of the anvil gap after the desired staple height has been set inside the predetermined range.Type: ApplicationFiled: November 18, 2015Publication date: March 10, 2016Inventors: Venkataramanan Mandakolathur Vasudevan, Edward G. Chekan, Kevin D. Felder, Jerome R. Morgan, Carl J. Shurtleff, IV, Johnny H. Alexander, III, John F. Cummings, Christopher C. Miller
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Publication number: 20160030038Abstract: A surgical instrument includes a handle assembly having a trigger operable to fire a staple driver to staple tissue. The instrument includes a pointed rod to which an anvil may be coupled. An anvil detection feature is included to determine when the anvil is coupled to the rod. In some versions, the anvil detection feature comprises a translatable rod that inhibits a lockout feature from disengaging. In other versions, an anvil sensing tube is disposed about the pointed rod and interferes with actuation of the trigger in a first position. A recess in the tube permits trigger to actuate when the anvil sensing tube is in the second position. Alternatively, a resilient tab is coupled to the pointed rod and resists actuation of the staple driver. A trigger lockout assembly may include a spring-loaded button that “pops” out when a push rod is actuated, thereby freeing a pivotable lockout feature.Type: ApplicationFiled: October 13, 2015Publication date: February 4, 2016Inventors: Kevin D. Felder, John F. Cummings, Joseph P. Schowalter, Patrick J. Swindon, Johnny H. Alexander, Patrick A. Weizman, Cory G. Kimball, Edward G. Chekan, Joseph E. Young, Christopher C. Miller, Barry T. Jamison, John V. Hunt, Kent P. Baker, Cortney E. Henderson, Chester O. Baxter, III, Jerome R. Morgan, Adam R. Dunki-Jacobs, Venkataramanan Mandakolathur Vasudevan, Carl J. Shurtleff, Julia F. Serber
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Patent number: 9232941Abstract: In various embodiments, a tissue thickness compensator can comprise a compressible extracellular matrix and a bioabsorbable material dispersed within the extracellular matrix, wherein the bioapsorption of the bioabsorbable material is configured to leave behind channels in the extracellular matrix. The tissue thickness compensator can also comprise generation means for generating the ingrowth of tissue into the channels. In at least one embodiment, the tissue thickness compensator can comprise dissolvable wicking members which, when dissolved, can leave behind channels in the tissue thickness compensator. In certain embodiments, the tissue thickness compensator can comprise at least one rupturable capsule.Type: GrantFiled: March 28, 2012Date of Patent: January 12, 2016Assignee: Ethicon Endo-Surgery, Inc.Inventors: Venkataramanan Mandakolathur Vasudevan, Cortney E. Henderson, Taylor W. Aronhalt, Jeffrey L. Aldridge, Charles J. Scheib, Chunlin Yang, Christopher J. Schall, Chester O. Baxter, III, Frederick E. Shelton, IV, Joseph H. Contiliano, Tamara Widenhouse, Donna L. Korvick
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Patent number: 9220505Abstract: A surgical stapling instrument for performing a circular anastomosis comprises a stapling head assembly, an actuator handle assembly, a shaft assembly, a safety latch, and a locking member. The stapling head assembly includes an anvil that moves relative to a staple holder and a staple driver to drive staples from the staple holder into tissue and against the anvil. The actuator handle assembly has a first actuator that controls motion of the anvil and a second actuator that controls motion of the staple driver. The shaft assembly couples the stapling head assembly to the actuator handle assembly. The safety latch prevents operation of the second actuator when the gap between the anvil and staple holder is outside a predetermined range. The locking member is configured to prevent adjustment of the anvil gap after the desired staple height has been set inside the predetermined range.Type: GrantFiled: December 16, 2011Date of Patent: December 29, 2015Assignee: Ethicon Endo-Surgery, Inc.Inventors: Venkataramanan Mandakolathur Vasudevan, Edward G. Chekan, Kevin D. Felder, Jerome R. Morgan, Carl J. Shurtleff, Johnny H. Alexander, III, John F. Cummings, Christopher C. Miller
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Patent number: 9186148Abstract: A surgical instrument includes a handle assembly having a trigger operable to fire a staple driver to staple tissue. The instrument includes a pointed rod to which an anvil may be coupled. An anvil detection feature is included to determine when the anvil is coupled to the rod. In some versions, the anvil detection feature comprises a translatable rod that inhibits a lockout feature from disengaging. In other versions, an anvil sensing tube is disposed about the pointed rod and interferes with actuation of the trigger in a first position. A recess in the tube permits trigger to actuate when the anvil sensing tube is in the second position. Alternatively, a resilient tab is coupled to the pointed rod and resists actuation of the staple driver. A trigger lockout assembly may include a spring-loaded button that “pops” out when a push rod is actuated, thereby freeing a pivotable lockout feature.Type: GrantFiled: January 5, 2012Date of Patent: November 17, 2015Assignee: Ethicon Endo-Surgery, Inc.Inventors: Kevin D. Felder, John F. Cummings, Joseph P. Schowalter, Patrick J. Swindon, Johnny H. Alexander, III, Patrick A. Weizman, Cory G. Kimball, Edward G. Chekan, Joseph E. Young, Christopher C. Miller, Barry T. Jamison, John V. Hunt, Kent P. Baker, Cortney E. Henderson, Chester O. Baxter, III, Jerome R. Morgan, Adam R. Dunki-Jacobs, Venkataramanan Mandakolathur Vasudevan, Carl J. Shurtleff, Julia F. Serber
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Patent number: 9125651Abstract: A surgical instrument includes a body, a removable insert including a measurement indicator, and an end effector positioned at a distal end of the body. The end effector has a distal interior surface facing a proximal end of the body. The end effector is configured to receive the insert. An actuation feature is in communication with the end effector and the insert when the insert is received in the end effector. The actuation feature is configured to advance the insert distally toward the distal interior surface of the end effector. The measurement indicator of the removable insert is configured to determine the thickness of tissue positioned between the removable insert and the distal interior surface of the end effector. Based on the measured tissue thickness, a user selects a cartridge configured to at least staple (and perhaps also sever) the measured tissue. The cartridge is received within the end effector.Type: GrantFiled: December 7, 2011Date of Patent: September 8, 2015Assignee: Ethicon Endo-Surgery, Inc.Inventors: Venkataramanan Mandakolathur Vasudevan, Steven G. Hall
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Patent number: 8857694Abstract: A fastener cartridge can comprise a support portion, a tissue thickness compensator positioned relative to the support portion, and a plurality of fasteners positioned within the support portion and/or the tissue thickness compensator which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein a second jaw, or anvil, can be positioned opposite the first jaw. To deploy the fasteners, a staple-deploying member is advanced through the fastener cartridge to move the fasteners toward the anvil. As the fasteners are deployed, the fasteners can capture at least a portion of the tissue thickness compensator therein along with at least a portion of the tissue being fastened.Type: GrantFiled: April 29, 2011Date of Patent: October 14, 2014Assignee: Ethicon Endo-Surgery, Inc.Inventors: Frederick E. Shelton, IV, Chester O. Baxter, III, Taylor W. Aronhalt, Venkataramanan Mandakolathur Vasudevan, Israel Nur, John V. Hunt, Geoffrey C. Hueil, Gregory J. Fanuele