Patents by Inventor Christopher L. Ramsay
Christopher L. Ramsay 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: 20260283628Abstract: An apparatus for positioning and guiding a drill for forming a bone passage during surgery is provided. The apparatus may include a handle and a sleeve disposed on the handle. The sleeve may be configured to receive a drill. The apparatus may further include a neck disposed on the handle and a lever disposed on the neck. The neck may be movable in translation relative to the handle. The lever may be angularly movable in rotation relative to the neck. The apparatus may further include a guide arm disposed on the lever and a neck locking mechanism disposed on the handle. The neck locking mechanism configured to hold the neck in place relative to the handle passage and release the neck. The apparatus may further include a detent mechanism configured to provide a resistance against rotation of the lever.Type: ApplicationFiled: March 10, 2026Publication date: September 24, 2026Applicant: INS Ortho, Inc.Inventors: Christian N. Anderson, Christopher L. Ramsay, Samuel Grossman
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Patent number: 12569263Abstract: An apparatus for positioning and guiding a drill for forming a bone passage during surgery is provided. The apparatus may include a handle and a sleeve disposed on the handle. The sleeve may be configured to receive a drill. The apparatus may further include a neck disposed on the handle and a lever disposed on the neck. The neck may be movable in translation relative to the handle. The lever may be angularly movable in rotation relative to the neck. The apparatus may further include a guide arm disposed on the lever and a neck locking mechanism disposed on the handle. The neck locking mechanism configured to hold the neck in place relative to the handle passage and release the neck. The apparatus may further include a detent mechanism configured to provide a resistance against rotation of the lever.Type: GrantFiled: January 30, 2025Date of Patent: March 10, 2026Assignee: INS Ortho, Inc.Inventors: Christian N. Anderson, Christopher L. Ramsay, Samuel Grossman
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Publication number: 20250241663Abstract: An apparatus for positioning and guiding a drill for forming a bone passage during surgery is provided. The apparatus may include a handle and a sleeve disposed on the handle. The sleeve may be configured to receive a drill. The apparatus may further include a neck disposed on the handle and a lever disposed on the neck. The neck may be movable in translation relative to the handle. The lever may be angularly movable in rotation relative to the neck. The apparatus may further include a guide arm disposed on the lever and a neck locking mechanism disposed on the handle. The neck locking mechanism configured to hold the neck in place relative to the handle passage and release the neck. The apparatus may further include a detent mechanism configured to provide a resistance against rotation of the lever.Type: ApplicationFiled: January 30, 2025Publication date: July 31, 2025Inventors: Christian N. Anderson, Christopher L. Ramsay, Samuel Grossman
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Publication number: 20250195105Abstract: An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.Type: ApplicationFiled: December 19, 2024Publication date: June 19, 2025Applicant: Medos International SàrlInventors: Jörn Richter, Christopher L. Ramsay, Paul Maguire, John C. Voellmicke
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Patent number: 12193704Abstract: An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.Type: GrantFiled: December 29, 2022Date of Patent: January 14, 2025Assignee: Medos International SàrlInventors: Jörn Richter, Christopher L. Ramsay, Paul Maguire, John C. Voellmicke
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Patent number: 11911017Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezius muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: GrantFiled: September 7, 2018Date of Patent: February 27, 2024Assignee: DePuy Synthes Products, Inc.Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward B. Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintanilha
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Publication number: 20230135764Abstract: An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.Type: ApplicationFiled: December 29, 2022Publication date: May 4, 2023Applicant: Medos International SarlInventors: Jörn Richter, Christopher L. Ramsay, Paul Maguire, John C. Voellmicke
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Patent number: 11559328Abstract: An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.Type: GrantFiled: March 13, 2019Date of Patent: January 24, 2023Assignee: MEDOS INTERNATIONAL SARLInventors: Jörn Richter, Christopher L. Ramsay, Paul Maguire, John C. Voellmicke
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Patent number: 11278323Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: GrantFiled: September 7, 2018Date of Patent: March 22, 2022Assignee: DePuy Synthes Products, Inc.Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward B. Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintanilha
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Patent number: 11241255Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: GrantFiled: September 7, 2018Date of Patent: February 8, 2022Assignee: DePuy Synthes Products, Inc.Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward B. Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintanilha
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Patent number: 11234736Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: GrantFiled: September 7, 2018Date of Patent: February 1, 2022Assignee: DePuy Synthes Products, Inc.Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward B. Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintanilha
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Patent number: 11134987Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: GrantFiled: September 7, 2018Date of Patent: October 5, 2021Assignee: DePuy Synthes Products, Inc.Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward B. Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintanilha
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Patent number: 10695093Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: GrantFiled: March 27, 2017Date of Patent: June 30, 2020Assignee: DePuy Synthes Products, Inc.Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintanilha
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Publication number: 20200179007Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical. spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: ApplicationFiled: January 2, 2020Publication date: June 11, 2020Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward B. Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintanilha
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Publication number: 20200085421Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: ApplicationFiled: March 27, 2017Publication date: March 19, 2020Inventors: William C. HORTON, John Riley HAWKINS, Christopher L. RAMSAY, Edward ZALENSKI, Alexander GRINBERG, Hassan SERHAN, Ernest QUINTANILHA
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Publication number: 20190209154Abstract: An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.Type: ApplicationFiled: March 13, 2019Publication date: July 11, 2019Applicant: Medos International SarlInventors: Jörn Richter, Christopher L. Ramsay, Paul Maguire, John C. Voellmicke
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Publication number: 20190083140Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: ApplicationFiled: September 7, 2018Publication date: March 21, 2019Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintaniha
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Publication number: 20190083142Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezius muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: ApplicationFiled: September 7, 2018Publication date: March 21, 2019Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintaniha
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Publication number: 20190083137Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: ApplicationFiled: September 7, 2018Publication date: March 21, 2019Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintaniha
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Publication number: 20190083139Abstract: A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprises: i) an anterior superior border of the trapezius muscle; ii) an anterior inferior border of the splenius capitis muscle, and iii) a posterior superior border of the levator scapulae muscle. Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.Type: ApplicationFiled: September 7, 2018Publication date: March 21, 2019Inventors: William C. Horton, John Riley Hawkins, Christopher L. Ramsay, Edward Zalenski, Alexander Grinberg, Hassan Serhan, Ernest Quintaniha