Patents by Inventor Chris Pamichev
Chris Pamichev 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: 12035902Abstract: A method for creating space in a joint formed at the convergence of two bones, the method comprising: applying force to a body part so as to separate the two bones from one another by a distance which is greater than the distance that they are normally separated from one another when the joint is in a healthy state, whereby to distract the joint and create an intrajoint space; inserting an assembly of three balloons into the intrajoint space while the assembly of three balloons is in a contracted condition; expanding the assembly of three balloons within the intrajoint space; and reducing the force applied to the body part so that the joint is supported on the assembly of three balloons, with the two bones remaining separated from one another by a distance which is greater than the distance that they are normally separated from one another when the joint is in a healthy state.Type: GrantFiled: March 17, 2022Date of Patent: July 16, 2024Assignee: Stryker CorporationInventors: Julian Nikolchev, Hal David Martin, Chris Pamichev, James Flom, William Kaiser, Paritosh Ambekar
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Patent number: 10426456Abstract: Apparatus for securing a first object to a second object, the apparatus comprising: an elongated body having a distal end, a proximal end, and a lumen extending between the distal end and the proximal end, the lumen comprising a first section and a second section, the first section of the lumen being disposed distal to the second section of the lumen, and with the first section of the lumen having a wider diameter than the second section of the lumen; at least one longitudinally-extending slit extending through the side wall of the elongated body and communicating with the lumen, the at least one longitudinally-extending slit having a distal end and a proximal end, with the distal end of the at least one longitudinally-extending slit being spaced from the distal end of the elongated body; and an elongated element extending through the lumen of the elongated body.Type: GrantFiled: September 27, 2016Date of Patent: October 1, 2019Assignee: Pivot Medical, Inc.Inventors: Chris Pamichev, J. Brook Burley, Julian Nikolchev, James Flom
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Patent number: 10123793Abstract: A method for securing a first object to a second object comprising providing apparatus comprising an elongated body having a lumen; an enlargement; a first elongated element, the distal end of the first elongated element being connected to the enlargement and the proximal end of the first elongated element extending through the lumen; and a second elongated element connected to the first elongated element external to the elongated body; inserting the elongated body into the second object; moving the second elongated element proximally so as to cause proximal movement of the first elongated element so as to cause the enlargement to move into a second portion of the lumen, whereby to laterally expand the elongated body; and securing the first object to the second object with the second elongated element.Type: GrantFiled: November 9, 2015Date of Patent: November 13, 2018Assignee: Pivot Medical, Inc.Inventors: Chris Pamichev, J. Brook Burley, Julian Nikolchev, James Flom
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Patent number: 10123794Abstract: A suture passer comprising: a hollow tube, the hollow tube comprising a distal end, a proximal end, a lumen extending from the distal end to the proximal end, and a window formed in the sidewall of the hollow tube, the window communicating with the lumen; and a clamping rod slidably received in the lumen of the hollow tube, the clamping rod comprising a distal end and a proximal end, the distal end being bifurcated into a first arm and a second arm, one of the first and second arms extending distally of the other of the first and second arms and including a clamping surface, and at least one of the first and second arms being outwardly biased such that when the clamping rod is moved distally so that the distal end of the at least one outwardly biased arm is adjacent to the window, the distal end of the at least one outwardly biased arm extends outwardly through the window.Type: GrantFiled: September 12, 2011Date of Patent: November 13, 2018Assignee: Pivot Medical, Inc.Inventors: James Flom, Roger Pisarnwongs, Thomas Weisel, Chris Pamichev
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Publication number: 20180185037Abstract: Apparatus for drilling a hole in material, the apparatus comprising: an angled drill guide comprising a curved distal section, a less-curved proximal section, and a lumen extending therebetween, wherein the less-curved proximal section comprises a flat extending therealong for reducing the effective diameter of the less-curved proximal section so as to minimize interference between the angled drill guide and the side wall of an access cannula.Type: ApplicationFiled: December 26, 2017Publication date: July 5, 2018Inventors: J. Brook Burley, Jeremy Graul, Brett Page, Chris Pamichev, Andrew Lantz
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Patent number: 9848894Abstract: Apparatus for drilling a hole in material, the apparatus comprising: an angled drill guide comprising a curved distal section, a less-curved proximal section, and a lumen extending therebetween, wherein the less-curved proximal section comprises a flat extending therealong for reducing the effective diameter of the less-curved proximal section so as to minimize interference between the angled drill guide and the side wall of an access cannula.Type: GrantFiled: February 11, 2013Date of Patent: December 26, 2017Assignee: Pivot Medical, Inc.Inventors: J. Brook Burley, Jeremy Graul, Brett Page, Chris Pamichev, Andrew Lantz
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Publication number: 20170231616Abstract: Apparatus for securing a first object to a second object, the apparatus comprising: an elongated body having a distal end, a proximal end, and a lumen extending between the distal end and the proximal end, the lumen comprising a first section and a second section, the first section of the lumen being disposed distal to the second section of the lumen, and with the first section of the lumen having a wider diameter than the second section of the lumen; at least one longitudinally-extending slit extending through the side wall of the elongated body and communicating with the lumen, the at least one longitudinally-extending slit having a distal end and a proximal end, with the distal end of the at least one longitudinally-extending slit being spaced from the distal end of the elongated body; and an elongated element extending through the lumen of the elongated body.Type: ApplicationFiled: September 27, 2016Publication date: August 17, 2017Inventors: Chris Pamichev, J. Brook Burley, Julian Nikolchev, James Flom
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Publication number: 20170215893Abstract: A microfracture instrument for applying microfracture therapy to a bone, the microfracture instrument comprising: an elongated shaft comprising a distal end and a proximal end; a needle comprising a body terminating in at least one sharp point, the needle being movably mounted to the distal end of the shaft for movement between an extended position for engaging the bone with the at least one sharp point of the needle and a retracted position for withdrawing the at least one sharp point of the needle from the bone; and a drive shaft movably mounted to the elongated shaft, the drive shaft being connected to the body of the needle so that movement of the drive shaft relative to the elongated shaft moves the needle between its extended position and its retracted position.Type: ApplicationFiled: September 16, 2016Publication date: August 3, 2017Inventors: Chris Pamichev, Julian Nikolchev, James R. Flom, Lynette Ross, Thomas Weisel, Matthew Frushell, William Kaiser
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Patent number: 9451943Abstract: Apparatus for securing a first object to a second object, the apparatus comprising: an elongated body having a distal end, a proximal end, and a lumen extending between the distal end and the proximal end, the lumen comprising a first section and a second section, the first section of the lumen being disposed distal to the second section of the lumen, and with the first section of the lumen having a wider diameter than the second section of the lumen; at least one longitudinally-extending slit extending through the side wall of the elongated body and communicating with the lumen, the at least one longitudinally-extending slit having a distal end and a proximal end, with the distal end of the at least one longitudinally-extending slit being spaced from the distal end of the elongated body; and an elongated element extending through the lumen of the elongated body.Type: GrantFiled: January 13, 2011Date of Patent: September 27, 2016Assignee: Pivoc Medical, Inc.Inventors: Chris Pamichev, J. Brook Burley, Julian Nikolchev, James Flom
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Patent number: 9445824Abstract: A microfracture instrument for applying microfracture therapy to a bone, the microfracture instrument comprising: an elongated shaft comprising a distal end and a proximal end; a needle comprising a body terminating in at least one sharp point, the needle being movably mounted to the distal end of the shaft for movement between an extended position for engaging the bone with the at least one sharp point of the needle and a retracted position for withdrawing the at least one sharp point of the needle from the bone; and a drive shaft movably mounted to the elongated shaft, the drive shaft being connected to the body of the needle so that movement of the drive shaft relative to the elongated shaft moves the needle between its extended position and its retracted position.Type: GrantFiled: March 21, 2013Date of Patent: September 20, 2016Assignee: Pivot Medical, Inc.Inventors: Chris Pamichev, Julian Nikolchev, James R. Flom, Lynette Ross, Matthew Frushell, William Kaiser
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Publication number: 20160157850Abstract: Apparatus for securing a first object to a second object, the apparatus comprising: an elongated body having a distal end, a proximal end, and a lumen extending between the distal end and the proximal end, the lumen comprising a first section and a second section, the first section of the lumen being disposed distal to the second section of the lumen, and with the first section of the lumen having a wider diameter than the second section of the lumen; at least one longitudinally-extending slit extending through the side wall of the elongated body and communicating with the lumen, the at least one longitudinally-extending slit having a distal end and a proximal end, with the distal end of the at least one longitudinally-extending slit being spaced from the distal end of the elongated body; and an elongated element extending through the lumen of the elongated body, the elongated element comprising a proximal end and a distal end and having an enlargement at its distal end, the enlargement having a diameter gType: ApplicationFiled: November 9, 2015Publication date: June 9, 2016Inventors: Chris Pamichev, J. Brook Burley, Julian Nikolchev, James Flom
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Patent number: 9179905Abstract: Apparatus for securing a first object to a second object, comprising an elongated body having a distal end and a proximal end, and a lumen extending therebetween, the lumen comprising a first section and a second section, the first section being disposed distal to the second section, and with the first section having a wider diameter than the second section; at least one longitudinally-extending slit extending through the side wall of the elongated body and communicating with the lumen, the slit having a distal end and a proximal end, with the distal end of the slit being spaced from the distal end of the elongated body; and an elongated element extending through the lumen, the elongated element comprising a proximal end and a distal end and having an enlargement at its distal end, the enlargement having a diameter greater than the second section.Type: GrantFiled: July 19, 2010Date of Patent: November 10, 2015Assignee: Pivot Medical, Inc.Inventors: Chris Pamichev, J. Brook Burley, Julian Nikolchev, James Flom
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Publication number: 20150305730Abstract: A method for creating space in a joint, the method comprising: applying force to a body part so as to distract the joint and create an intrajoint space; inserting an expandable member into the intrajoint space while the expandable member is in a contracted condition; expanding the expandable member within the intrajoint space; and reducing the force applied to the body part so that the joint is supported on the expandable member.Type: ApplicationFiled: December 2, 2014Publication date: October 29, 2015Inventors: Julian Nikolchev, Hal David Martin, Chris Pamichev, James Flom, William Kaiser, Paritosh Ambekar, Geoff Willis, Lynette Ross, Matthew Frushell, Michael Leunig, Andrew Lantz
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Patent number: 8900243Abstract: A method for creating space in a joint, the method comprising: applying force to a body part so as to distract the joint and create an intrajoint space; inserting an expandable member into the intrajoint space while the expandable member is in a contracted condition; expanding the expandable member within the intrajoint space; and reducing the force applied to the body part so that the joint is supported on the expandable member.Type: GrantFiled: March 17, 2010Date of Patent: December 2, 2014Assignee: Pivot Medical, Inc.Inventors: Julian Nikolchev, Hal David Martin, Chris Pamichev, James Flom, William Kaiser, Paritosh Ambekar
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Publication number: 20130296864Abstract: Apparatus for drilling a hole in material, the apparatus comprising: an angled drill guide comprising a curved distal section, a less-curved proximal section, and a lumen extending therebetween, wherein the less-curved proximal section comprises a flat extending therealong for reducing the effective diameter of the less-curved proximal section so as to minimize interference between the angled drill guide and the side wall of an access cannula.Type: ApplicationFiled: February 11, 2013Publication date: November 7, 2013Inventors: J. Brook Burley, Jeremy Graul, Brett Page, Chris Pamichev, Andrew Lantz
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Patent number: 8449560Abstract: Devices and methods for tissue acquisition and fixation, or gastroplasty, are described. Generally, the devices of the system may be advanced in a minimally invasive manner within a patient's body to create one or more plications within the hollow body organ. A tissue treatment device attached to a distal end of a flexible elongated member and has a cartridge member opposite an anvil member. The cartridge member and the anvil member are movable between a closed position and an open position, and a moveable barrier is disposed between the cartridge and anvil members to help acquire a dual fold of tissue. The tissue treatment device can be repositioned to form multiple plications within the organ.Type: GrantFiled: December 29, 2006Date of Patent: May 28, 2013Assignees: Ethicon, Inc.Inventors: Alex T. Roth, Andrew H. Hancock, Chris Pamichev, John Gaiser, Gary Weller, Christopher Julian, James Gannoe, Craig Gerbi, Crystine M. Lee
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Publication number: 20130103084Abstract: Apparatus for securing a first object to a second object, the apparatus comprising: an elongated body having a distal end, a proximal end, and a lumen extending between the distal end and the proximal end, the lumen comprising a first section and a second section, the first section of the lumen being disposed distal to the second section of the lumen, and with the first section of the lumen having a wider diameter than the second section of the lumen; at least one longitudinally-extending slit extending through the side wall of the elongated body and communicating with the lumen, the at least one longitudinally-extending slit having a distal end and a proximal end, with the distal end of the at least one longitudinally-extending slit being spaced from the distal end of the elongated body; and an elongated element extending through the lumen of the elongated body.Type: ApplicationFiled: January 13, 2011Publication date: April 25, 2013Inventors: Chris Pamichev, J. Brook Burley, Julian Nikolchev, James Flom
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Patent number: 8419763Abstract: A safety needle comprising a handle; a hollow needle; a trigger carriage; an obturator; a spring; a trigger; a first latch and a second latch; the first latch, second latch and trigger being configured so that when the trigger carriage is in a distal position and the first latch set, and the trigger is thereafter pulled proximally, the first latch is released and the trigger carriage moves proximally into a proximal position, and thereafter releasing the trigger causes the trigger carriage to move into an intermediate position and set the second latch; and further wherein, when the trigger carriage is in its intermediate position and the distal end of the obturator engages tissue, the trigger carriage is moved proximally so as to release the second latch.Type: GrantFiled: September 15, 2008Date of Patent: April 16, 2013Assignee: Pivot Medical, Inc.Inventors: Julian Nikolchev, Chris Pamichev
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Patent number: 8409230Abstract: A microfracture instrument for applying microfracture therapy to a bone, the microfracture instrument comprising: an elongated shaft comprising a distal end and a proximal end; a needle comprising a body terminating in at least one sharp point, the needle being movably mounted to the distal end of the shaft for movement between an extended position for engaging the bone with the at least one sharp point of the needle and a retracted position for withdrawing the at least one sharp point of the needle from the bone; and a drive shaft movably mounted to the elongated shaft, the drive shaft being connected to the body of the needle so that movement of the drive shaft relative to the elongated shaft moves the needle between its extended position and its retracted position.Type: GrantFiled: May 8, 2009Date of Patent: April 2, 2013Assignee: Pivot Medical, Inc.Inventors: Chris Pamichev, Julian Nikolchev, James R. Flom, Lynette Ross, Thomas Weisel, Matthew Frushell, William Kaiser
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Publication number: 20120123448Abstract: A suture passer comprising: a hollow tube, the hollow tube comprising a distal end, a proximal end, a lumen extending from the distal end to the proximal end, and a window formed in the sidewall of the hollow tube, the window communicating with the lumen; and a clamping rod slidably received in the lumen of the hollow tube, the clamping rod comprising a distal end and a proximal end, the distal end being bifurcated into a first arm and a second arm, one of the first and second arms extending distally of the other of the first and second arms and including a clamping surface, and at least one of the first and second arms being outwardly biased such that when the clamping rod is moved distally so that the distal end of the at least one outwardly biased arm is adjacent to the window, the distal end of the at least one outwardly biased arm extends outwardly through the window.Type: ApplicationFiled: September 12, 2011Publication date: May 17, 2012Inventors: James Flom, Roger Pisarnwongs, Thomas Weisel, Chris Pamichev