Mehran S Aghazadeh, 55343 Parker St, Newton, MA 02459

2012002, Jan 26, 2012

Jul 21, 2011

13/187916

Mehran S. Aghazadeh - Newton MA, US

ArthroCAD, Inc. - Ayer MA

G06K 9/00

382132

Provided are a computer-aided system (medical device), a computer-aided method, and a computer program product useful in digital templating for prosthetic arthroplasty, for example, total hip arthroplasty. The invention includes digital image capture and scaling features that can be used in conjunction with any digital radiographic image stored using picture archiving and communication system (PACS), regardless of PACS provider or PACS format. Patient radiographic images are captured, imported, and scaled, e.g., to actual size, to match the scale of a digital template of any prosthesis selected by the user. The computer program product is a stand-alone product, used independently of any software interface, including software accessed through connection to a network or the internet. The software, method, and system are suitable for use with a stand-alone computer and permit improved and cost-effective selection of prostheses for any particular clinical situation.

2020016, May 28, 2020

Jan 29, 2020

16/775560

- Lowell MA, US
Mehran S. Aghazadeh - Newton MA, US

A61B 34/10
A61F 2/34
A61B 17/88
A61B 34/20
A61B 90/00

Systems and methods for providing alignment of instruments and/or prostheses in various surgical operations are provided herein. The systems and methods generally include one or more sensors coupled to a patient's bones or other surgical tools, the sensors can detect their position and orientation in space and communicate this information to a processor. The processor can utilize the information to display data to a surgeon or other user regarding the position, angle, and alignment of a patient's bones, surgical tools, and prostheses. Further, the one or more sensors can be aligned to the patient's anatomy using a patient-specific alignment guide that interfaces with a portion of the patient's anatomy in a single position/orientation.

2017032, Nov 16, 2017

May 11, 2017

15/593031

- Lowell MA, US
Mehran S. Aghazadeh - Newton MA, US

A61B 34/10
A61B 34/20
A61F 2/34
A61F 2/46
A61B 17/88
A61B 34/20
A61B 90/00
A61B 34/10
A61B 90/00
A61F 2/46
A61B 34/20
A61F 2/30
A61F 2/30
A61B 17/00

Systems and methods for providing alignment of instruments and/or prostheses in various surgical operations are provided herein. The systems and methods generally include one or more sensors coupled to a patient's bones or other surgical tools, the sensors can detect their position and orientation in space and communicate this information to a processor. The processor can utilize the information to display data to a surgeon or other user regarding the position, angle, and alignment of a patient's bones, surgical tools, and prostheses. Further, the one or more sensors can be aligned to the patient's anatomy using a patient-specific alignment guide that interfaces with a portion of the patient's anatomy in a single position/orientation.

2017025, Sep 7, 2017

Mar 21, 2017

15/465551

- Ayer MA, US
Mehran S. Aghazadeh - Newton MA, US

A61B 17/17

Systems and methods for providing alignment in total knee arthroplasty operations are provided herein. The systems and methods generally include a plurality of sensors coupled to a patient's bones or other surgical tools, the sensors detect their position and orientation in space and communicate this information to a processor. The processor can utilize the information to display data to a surgeon or other user regarding the position, angle, and alignment of a patient's bones, surgical tools, and the reconstructed knee joint.

2017017, Jun 22, 2017

Feb 17, 2017

15/435903

- Lowell MA, US
Mehran S. Aghazadeh - Newton MA, US

A61B 90/00
A61B 17/60
A61F 2/46
A61B 17/58

Provided are systems and methods for precise intra-operative placement and positioning of components of hip prostheses, particularly with respect to avoiding acetabular prosthetic implant malpositioning in the human hip. In one embodiment the system includes at least a pair of electronic sensors as tilt and direction sensors, which are positioned on the patient's native bone structure and the prosthesis, plus at least one of an electronic angle sensor and an electronic leg length measurement unit, plus a computer processor running application software that is capable of receiving and using information from the various electronic sensors to calculate relevant angular relationships and, optionally, distance relationships. The system electronically measures a living subject's pelvic tilt and position while lying in the lateral decubitus position during the surgery. The systems and methods provide accurate and precise measurements of the subject's pelvic tilt, angle of inclination, and angle of forward flexion to the surgeon during the procedure by which the hip prosthesis is surgically implanted into the subject.

2016030, Oct 20, 2016

Jun 24, 2016

15/191577

- Ayer MA, US
Mehran S. Aghazadeh - Newton MA, US

A61B 5/00
A61B 5/107

One embodiment of a system described herein can include an axis guide for placement over a patient's right and left ASIS and at least two guides attachable to the axis guide to provide a through hole that is perpendicular to the axis guide. The system can further include at least two probes that can fit through the through holes and extend beyond an end of the axis guide by a predetermined distance, as well as at least two bone engaging pins that fit through the through holes. When the guides are assembled to the axis guide and the probes are assembled to the guides, the axis guide can be placed so that the probes contact the patient's pelvis and the probes can be replaced by the pins to mount the pins to the patient's pelvis in a known orientation.

2016014, May 19, 2016

Jan 20, 2016

15/001989

- Lowell MA, US
Mehran S. Aghazadeh - Newton MA, US

G06T 7/00
G06K 9/62
G06T 11/60
G06T 3/40
G06K 9/20

Provided are a computer-aided system (medical device), a computer-aided method, and a computer program product useful in digital templating for prosthetic arthroplasty, for example, total hip arthroplasty. The invention includes digital image capture and scaling features that can be used in conjunction with any digital radiographic image stored using picture archiving and communication system (PACS), regardless of PACS provider or PACS format. Patient radiographic images are captured, imported, and scaled, e.g., to actual size, to match the scale of a digital template of any prosthesis selected by the user. The computer program product is a stand-alone product, used independently of any software interface, including software accessed. through connection to a network or the internet. The software, method, and system are suitable for use with a stand-alone computer and permit improved and cost-effective selection of prostheses for any particular clinical situation.

2015001, Jan 15, 2015

Jul 14, 2014

14/330261

- Ayer MA, US
Mehran S. Aghazadeh - Newton MA, US

A61B 5/107
G01B 21/22
A61B 5/00

600587

A sensor and method for providing orientation data regarding a patient's pelvic axis is disclosed. The sensor includes a three axis tilt sensor; a wireless communication module; a power source; and a microcontroller. The microcontroller is in electronic communication with the three axis tilt sensor, the wireless communication module, and the power source so as to control the three axis tilt sensor and the wireless communication module so that the sensor is configured to measure and report on an orientation of a pelvic axis of a patient to whom the sensor has been connected in a known orientation. The microcontroller is able to control the sensor in order to maximize the power draw and extend the life of the portable power source.