Patents by Inventor Varun Chandra
Varun Chandra 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: 20240041350Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.Type: ApplicationFiled: October 18, 2023Publication date: February 8, 2024Applicant: MAKO SURGICAL CORP.Inventors: Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matthew Thompson, Eric Branch, Varun Chandra, Zhu Wu
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Publication number: 20230380988Abstract: A registration system including a bone pin guide and a bone pin clamp. The bone pin guide may include a guide body, a first guide including a first guide through-hole having a first longitudinal axis, and a second guide including a second guide through-hole having a second longitudinal axis. The bone pin guide may guide first and second bone pins into a bone via the first and second guides. The bone pin clamp may include a clamp body, first, second, and third clamp through-holes extending through the clamp body, a plurality of registration indents defined on the clamp body, and a clamping mechanism including at least one adjustable fastener. The bone pin clamp may receive the first and second bone pins in the first and third clamp through-holes and guide a third bone pin into the bone via the second clamp through-hole.Type: ApplicationFiled: July 13, 2023Publication date: November 30, 2023Applicant: MAKO SURGICAL CORP.Inventors: Zhu Wu, Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matthew Thompson, Eric Branch, Varun Chandra, Ahmet Bagci
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Patent number: 11813052Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.Type: GrantFiled: January 11, 2022Date of Patent: November 14, 2023Assignee: MAKO SURGICAL CORP.Inventors: Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matthew Thompson, Eric Branch, Varun Chandra, Zhu Wu
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Patent number: 11737894Abstract: A registration system including a bone pin guide and a bone pin clamp. The bone pin guide may include a guide body, a first guide including a first guide through-hole having a first longitudinal axis, and a second guide including a second guide through-hole having a second longitudinal axis. The bone pin guide may guide first and second bone pins into a bone via the first and second guides. The bone pin clamp may include a clamp body, first, second, and third clamp through-holes extending through the clamp body, a plurality of registration indents defined on the clamp body, and a clamping mechanism including at least one adjustable fastener. The bone pin clamp may receive the first and second bone pins in the first and third clamp through-holes and guide a third bone pin into the bone via the second clamp through-hole.Type: GrantFiled: March 2, 2021Date of Patent: August 29, 2023Assignee: MAKO SURGICAL CORP.Inventors: Zhu Wu, Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matthew Thompson, Eric Branch, Varun Chandra, Ahmet Bagci
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Publication number: 20220409396Abstract: A method includes obtaining a surgical plan comprising a first planned position of an implant and a second planned position of an augment relative to a bone. The augment is planned to provide support between the bone and the implant. The method also includes preparing the bone to receive both the implant in the first planned position and the augment in the second planned position by controlling a robotic device based on the first planned position of the implant and the second planned position of the augment.Type: ApplicationFiled: September 7, 2022Publication date: December 29, 2022Applicant: MAKO Surgical Corp.Inventors: Matthew Thompson, Varun Chandra, Mark Nadzadi, Christine Perrone, Garrett Joyal
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Patent number: 11478362Abstract: A system for facilitating arthroplasty procedures includes a robotic device, a reaming tool configured to interface with the robotic device, and a processing circuit communicable with the robotic device. The processing circuit is configured to obtain a surgical plan comprising a first planned position of an implant cup and a second planned position of an implant augment relative to a bone of a patient, determine a planned bone modification configured to prepare the bone to receive the implant cup in the first planned position and the implant augment in the second planned position, generate one or more virtual objects based on the planned bone modification, control the robotic device to constrain the cutting tool with the one or more virtual objects while the cutting tool interfaces with the robotic device and is operated to modify the bone in accordance with the planned bone modification.Type: GrantFiled: August 20, 2020Date of Patent: October 25, 2022Assignee: MAKO Surgical Corp.Inventors: Matthew Thompson, Varun Chandra, Mark Nadzadi, Christine Perrone, Garrett Joyal
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Publication number: 20220192844Abstract: A system for facilitating arthroplasty procedures includes a robotic device, a reaming tool configured to interface with the robotic device, and a processing circuit communicable with the robotic device. The processing circuit is configured to obtain a surgical plan comprising a first planned position of an implant cup and a second planned position of an implant augment relative to a bone of a patient, determine a planned bone modification configured to prepare the bone to receive the implant cup in the first planned position and the implant augment in the second planned position, generate one or more virtual objects based on the planned bone modification, control the robotic device to constrain the cutting tool with the one or more virtual objects while the cutting tool interfaces with the robotic device and is operated to modify the bone in accordance with the planned bone modification.Type: ApplicationFiled: August 20, 2020Publication date: June 23, 2022Inventors: Matthew Thompson, Varun Chandra, Mark Nadzadi, Christine Perrone, Garrett Joyal
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Publication number: 20220125334Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.Type: ApplicationFiled: January 11, 2022Publication date: April 28, 2022Applicant: MAKO Surgical Corp.Inventors: Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matthew Thompson, Eric Branch, Varun Chandra, Zhu Wu
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Patent number: 11246508Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.Type: GrantFiled: October 15, 2019Date of Patent: February 15, 2022Assignee: MAKO Surgical Corp.Inventors: Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matt Thompson, Eric Branch, Varun Chandra, Zhu Wu
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Publication number: 20210177621Abstract: A registration system including a bone pin guide and a bone pin clamp. The bone pin guide may include a guide body, a first guide including a first guide through-hole having a first longitudinal axis, and a second guide including a second guide through-hole having a second longitudinal axis. The bone pin guide may guide first and second bone pins into a bone via the first and second guides. The bone pin clamp may include a clamp body, first, second, and third clamp through-holes extending through the clamp body, a plurality of registration indents defined on the clamp body, and a clamping mechanism including at least one adjustable fastener. The bone pin clamp may receive the first and second bone pins in the first and third clamp through-holes and guide a third bone pin into the bone via the second clamp through-hole.Type: ApplicationFiled: March 2, 2021Publication date: June 17, 2021Applicant: MAKO Surgical Corp.Inventors: Zhu Wu, Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matthew Thompson, Eric Branch, Varun Chandra, Ahmet Bagci
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Patent number: 10959857Abstract: A registration system including a bone pin guide and a bone pin clamp. The bone pin guide may include a guide body, a first guide including a first guide through-hole having a first longitudinal axis, and a second guide including a second guide through-hole having a second longitudinal axis. The bone pin guide may guide first and second bone pins into a bone via the first and second guides. The bone pin clamp may include a clamp body, first, second, and third clamp through-holes extending through the clamp body, a plurality of registration indents defined on the clamp body, and a clamping mechanism including at least one adjustable fastener. The bone pin clamp may receive the first and second bone pins in the first and third clamp through-holes and guide a third bone pin into the bone via the second clamp through-hole.Type: GrantFiled: February 26, 2019Date of Patent: March 30, 2021Assignee: MAKO Surgical Corp.Inventors: Zhu Wu, Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matthew Thompson, Eric Branch, Varun Chandra, Ahmet Bagci
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Publication number: 20200383803Abstract: A registration system including a bone pin guide and a bone pin clamp. The bone pin guide may include a guide body, a first guide including a first guide through-hole having a first longitudinal axis, and a second guide including a second guide through-hole having a second longitudinal axis. The bone pin guide may guide first and second bone pins into a bone via the first and second guides. The bone pin clamp may include a clamp body, first, second, and third clamp through-holes extending through the clamp body, a plurality of registration indents defined on the clamp body, and a clamping mechanism including at least one adjustable fastener. The bone pin clamp may receive the first and second bone pins in the first and third clamp through-holes and guide a third bone pin into the bone via the second clamp through-hole.Type: ApplicationFiled: February 26, 2019Publication date: December 10, 2020Applicant: MAKO Surgical Corp.Inventors: Zhu Wu, Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matt Thompson, Eric Branch, Varun Chandra, Ahmet Bagci
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Publication number: 20200054247Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.Type: ApplicationFiled: October 15, 2019Publication date: February 20, 2020Applicant: MAKO Surgical Corp.Inventors: Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matt Thompson, Eric Branch, Varun Chandra, Zhu Wu
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Patent number: 10485450Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.Type: GrantFiled: August 30, 2017Date of Patent: November 26, 2019Assignee: MAKO Surgical Corp.Inventors: Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matt Thompson, Eric Branch, Varun Chandra, Zhu Wu
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Publication number: 20190201155Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.Type: ApplicationFiled: August 30, 2017Publication date: July 4, 2019Applicant: MAKO Surgical Corp.Inventors: Sunil Gupta, Ta-Cheng Chang, Zenan Zhang, Kevin Bechtold, Matt Thompson, Eric Branch, Varun Chandra, Zhu Wu