Patents by Inventor Zenan Zhang
Zenan Zhang 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: 20240125665Abstract: A near-field communication-based tire pressure monitoring system, a sensor, a tire, and a vehicle. The tire pressure monitoring system comprises a server (101), a terminal (102) supporting near-field communication, and a tire pressure monitoring sensor (103) supporting near-field communication. The terminal (102) obtains from the server (101) update information for updating the tire pressure monitoring sensor (103), and then the update information is transmitted to the tire pressure monitoring sensor (103) by establishing a near-field communication connection between the terminal (102) and the server (101), so that the tire pressure monitoring sensor (103) realizes information reconfiguration or programming process. The terminal (102) is connected to the tire pressure monitoring sensor (103) by means of near-field communication, and compared with wireless communication, the near-field communication avoids the interference of irrelevant signals, guaranteeing the normal communication process.Type: ApplicationFiled: March 12, 2020Publication date: April 18, 2024Inventors: Jianer ZHANG, Mingguang YU, Peter MACKEL, Haijun DING, Zenan HU
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Patent number: 11953405Abstract: A tracer particle spreading device for a boundary layer flow visualization experiment based on a flat plate includes a tracer particle generator, a smoke storage box, and a wall-surface particle distribution box. Fume and oil are pressurized by a micro pump and flows into a heating pipe to be heated and vaporized, and then is ejected from a nozzle to form tracer particles. The tracer particles enter the smoke storage box via a smoke guiding tube. An axial flow fan is mounted on a wall surface of the smoke storage box. The tracer particles enter a cavity of the wall-surface particle distribution box via the smoke guiding tube, and the tracer particles are rectified by a rectifying plate and ejected from a spreading slit. An outlet of the spreading slit is at an angle of 15° with respect to an experiment flat plate.Type: GrantFiled: July 2, 2020Date of Patent: April 9, 2024Assignee: ZHEJIANG UNIVERSITYInventors: Yao Zheng, Zhixian Ye, Jianfeng Zou, Yang Zhang, Yiyang Jiang, Zenan Tian, Shaochang Mo
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Patent number: 11944393Abstract: Disclosed herein are a surgical system for patella tracking and a method for selecting a properly-sized patellar implant utilizing the same. The surgical system may include first and second trackers and a patellar tracking system. The first tracker may be configured to contact an unresected or a resected patella, and the second tracker may be configured to contact a bone. The patellar tracking system may be configured to track the first and second trackers during patellar flexion and extension to generate patellar range of motion and patellar trial range of motion. A method for selecting a patellar implant may utilize the first and second trackers and the patellar tracking system.Type: GrantFiled: October 27, 2022Date of Patent: April 2, 2024Assignee: Mako Surgical Corp.Inventors: Daniel Antonio Perez, Daniel Rudolf Scholl, Gokce Yildirim, Alvin Perez, Alex McLachlan, Zenan Zhang, Geoffrey Westrich
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Publication number: 20240068856Abstract: A device for measuring volume of spherical tanks, includes a base, four supporting rods, a driving mechanism, a rotating disc and a counterweight mechanism. The base is provided with a first through hole and a circular fixing base with a second through hole. The supporting rods are circumferentially provided on the fixing base, with a sliding rod slidably provided at the lower side. An outer end of the sliding rod is provided with a limiting plate. The driving mechanism can drive the sliding rods to move simultaneously in radial directions. The rotating disc with a third through hole is arranged on the fixing base, and is rotatably provided with a reel around which a steel tape is wound. A free end of the steel tape is provided with a balancing disc whose opposite sides are provided with laser rangefinders. The counterweight mechanism can keep the balancing disc stable.Type: ApplicationFiled: November 8, 2023Publication date: February 29, 2024Inventors: Huadong HAO, Junxue CHEN, Xianlei CHEN, Haolei SHI, Zenan WU, Cunjun LI, Huizhong XU, Yeyong WANG, Zhengqian SHEN, Liang LI, Yan ZHANG
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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: 20230086467Abstract: Systems and methods for assisting users with accurate tool identification. A tool includes a tool feature, and a navigation system includes a localizer to detect a position of the tool feature. A memory stores identification data associated with a plurality of tools. Controller(s) is/are coupled to the navigation system, the memory and the display. The controller(s) receive, from the localizer, the detected position of the tool feature and compare the detected position of the tool feature with the identification data stored in the memory to determine an identity of the tool. The controller(s) present, on a display, the identity of the tool and an identity of at least one other tool.Type: ApplicationFiled: November 29, 2022Publication date: March 23, 2023Applicant: MAKO Surgical Corp.Inventors: Zenan Zhang, Kevin Bechtold, Carl Gayle
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Publication number: 20230039959Abstract: Disclosed herein are a surgical system for patella tracking and a method for selecting a properly-sized patellar implant utilizing the same. The surgical system may include first and second trackers and a patellar tracking system. The first tracker may be configured to contact an unresected or a resected patella, and the second tracker may be configured to contact a bone. The patellar tracking system may be configured to track the first and second trackers during patellar flexion and extension to generate patellar range of motion and patellar trial range of motion. A method for selecting a patellar implant may utilize the first and second trackers and the patellar tracking system.Type: ApplicationFiled: October 27, 2022Publication date: February 9, 2023Inventors: Daniel Antonio Perez, Daniel Rudolf Scholl, Gokce Yildirim, Alvin Perez, Alex McLachlan, Zenan Zhang, Geoffrey Westrich
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Patent number: 11534242Abstract: A surgical system for assisting a user in performing a surgical procedure at a surgical site, comprising a tool having a checkpoint, a pointer having a tip, and a localizer to determine a position of the pointer within a field of view. A memory comprises identification data associated with a plurality of tools. A controller is configured to prompt the user to position the tip of at the checkpoint, to receive position data from the localizer associated with the pointer within the field of view, to compare position data associated with the pointer against the identification data of the memory to determine an identity of the tool, and to present the user with the identity of the tool.Type: GrantFiled: February 19, 2019Date of Patent: December 27, 2022Assignee: MAKO Surgical Corp.Inventors: Zenan Zhang, Kevin Bechtold, Carl Gayle
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Patent number: 11510737Abstract: Disclosed herein are a surgical system for patella tracking and a method for selecting a properly-sized patellar implant utilizing the same. The surgical system may include first and second trackers and a patellar tracking system. The first tracker may be configured to contact an unresected or a resected patella, and the second tracker may be configured to contact a bone. The patellar tracking system may be configured to track the first and second trackers during patellar flexion and extension to generate patellar range of motion and patellar trial range of motion. A method for selecting a patellar implant may utilize the first and second trackers and the patellar tracking system.Type: GrantFiled: June 20, 2019Date of Patent: November 29, 2022Assignee: Mako Surgical Corp.Inventors: Daniel Antonio Perez, Daniel Rudolf Scholl, Gokee Yildirim, Alvin Perez, Alex McLachlan, Zenan Zhang, Geoffrey Westrich
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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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Publication number: 20190388159Abstract: Disclosed herein are a surgical system for patella tracking and a method for selecting a properly-sized patellar implant utilizing the same. The surgical system may include first and second trackers and a patellar tracking system. The first tracker may be configured to contact an unresected or a resected patella, and the second tracker may be configured to contact a bone. The patellar tracking system may be configured to track the first and second trackers during patellar flexion and extension to generate patellar range of motion and patellar trial range of motion. A method for selecting a patellar implant may utilize the first and second trackers and the patellar tracking system.Type: ApplicationFiled: June 20, 2019Publication date: December 26, 2019Inventors: Daniel Antonio Perez, Daniel Rudolf Scholl, Gokce Yildirim, Alvin Perez, Alex McLachlan, Zenan Zhang, Geoffrey Westrich
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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