Patents by Inventor Christopher P. Dougherty
Christopher P. Dougherty 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: 20230085430Abstract: Described herein is a simplified placement system and method for a tissue graft anchor by which a surgeon may introduce one or more sutures into a hole in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the bone, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture. Particularly preferred embodiments allow for the one-handed operation, namely embodiments in which relative axial movement between the inner tensioning device and outer driver device is optionally physically constrained, for example by means of cooperating and/or compressive elements disposed in the respective hub and handle portions, are described herein. Other preferred embodiments of the present invention relate to multi-anchor constructs that may employ threaded implants exclusively, push-in implants exclusively, or a combination of threaded and push-in implants.Type: ApplicationFiled: November 18, 2022Publication date: March 16, 2023Applicant: Tenjin LLCInventors: Christopher P. DOUGHERTY, Gary R. Heisler, Robert A. Van Wyk
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Patent number: 11504224Abstract: Described herein is a simplified placement system and method for a tissue graft anchor by which a surgeon may introduce one or more sutures into a hole in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the bone, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture. Particularly preferred embodiments allow for the one-handed operation. To that end, embodiments in which relative axial movement between the inner tensioning device and outer driver device is optionally physically constrained, for example by means of cooperating and/or compressive elements disposed in the respective hub and handle portions, are described herein.Type: GrantFiled: March 6, 2019Date of Patent: November 22, 2022Assignee: TENJIN LLCInventors: Christopher P. Dougherty, Gary R. Heisler, Robert A. Van Wyk
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Patent number: 11089996Abstract: Various methods and machines have been used in the past to measure electrical characteristics of living tissue for purpose of locating an area of abnormal nervous system activity. However, whereas prior art methodologies merely allow for the detection of pain, the apparatus, system and method of the present invention allow for the objective assessment pain severity that finds utility not only the initial diagnosis but also the on-going treatment of any disease, disorder or injury associated therewith. To that end, the apparatus, system and method of the present invention allows medical practitioners to non-invasively and quantitatively distinguish organic pain from psychosomatic pain and legitimate pain patients from drug seekers and opiod addicts, as well as to directly and objectively compare the efficacy of different drug regimens and therapy protocols.Type: GrantFiled: December 14, 2017Date of Patent: August 17, 2021Assignee: Episcan Global, LLCInventors: David Michael Sitton, Christopher P. Dougherty, Samuel F. Arndt, III
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Publication number: 20210085243Abstract: Various methods and machines have been used in the past to measure electrical characteristics of living tissue for purpose of locating an area of abnormal nervous system activity. However, whereas prior art methodologies merely allow for the detection of pain, the apparatus, system and method of the present invention allow for the objective assessment of autonomic nerve function and/or pain severity. As such, the present invention finds utility not only the initial diagnosis, including the early diagnosis of generally asymptomatic autonomic dysfunction, but also the on-going treatment of any disease, disorder or injury associated therewith. To that end, the apparatus, system and method of the present invention allows medical practitioners to non-invasively and quantitatively distinguish the organic from the psychosomatic and legitimate pain patients from drug seekers and opioid addicts, as well as to directly and objectively compare the efficacy of different drug regimens and therapy protocols.Type: ApplicationFiled: December 14, 2018Publication date: March 25, 2021Applicant: Episcan Global, LLCInventors: David Michael SITTON, Christopher P. DOUGHERTY, Samuel F. ARNDT, III
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Publication number: 20210079352Abstract: A biomimetic lamellar tissue scaffold for tissue regeneration comprises a plurality of lamellae formed of a polymer film and each having a first surface and a second surface. A patterned array of polymer nanofibers protrudes from the first surface of each lamella of the plurality. The lamellae form a plurality of interlamellar spaces between the first and second surfaces of adjacent lamellae. Protuberances formed on the first surface of each lamella maintain the interlamellar spaces. The arrays of polymer nanofibers on the first lamellar surface of each lamella protrude into the interlamellar spaces between adjacent lamellae and are configured to influence the propagation and differentiation of cells populated to or recruited to the scaffold.Type: ApplicationFiled: November 29, 2020Publication date: March 18, 2021Inventors: William Hudson Hofmeister, Robert A. Van Wyke, Christopher P. Dougherty, Collin David Anderson
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Patent number: 10876095Abstract: A biomimetic lamellar tissue scaffold for tissue regeneration comprises a plurality of lamellae formed of a polymer film and each having a first surface and a second surface. A patterned array of polymer nanofibers protrudes from the first surface of each lamella of the plurality. The lamellae form a plurality of interlamellar spaces between the first and second surfaces of adjacent lamellae. Protuberances formed on the first surface of each lamella maintain the interlamellar spaces. The arrays of polymer nanofibers on the first lamellar surface of each lamella protrude into the interlamellar spaces between adjacent lamellae and are configured to influence the propagation and differentiation of cells populated to or recruited to the scaffold.Type: GrantFiled: January 30, 2020Date of Patent: December 29, 2020Assignee: ULTRA SMALL FIBERS, LLCInventors: William Hudson Hofmeister, Robert A. Van Wyk, Christopher P. Dougherty, Collin David Anderson
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Patent number: 10548711Abstract: A simplified placement system and method for a tissue graft anchor by which a surgeon may introduce one or more sutures into a socket in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the socket, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture is disclosed. Alternate embodiments of the anchor placement system and method of the present invention may forego tensioned sutures in favor of direct engagement with the soft tissue graft, whereby an end or a portion of the graft is trapped between an outer surface of the anchor and the boney surface of the wall of the socket such that friction force between the inserted portions of graft and socket maintains the position of graft relative to socket and bone. In either case, particularly preferred embodiments allow for the one-handed operation.Type: GrantFiled: October 19, 2018Date of Patent: February 4, 2020Assignee: TENJIN LLCInventors: Christopher P. Dougherty, Gary R. Heisler, Robert A. Van Wyk
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Patent number: 10548588Abstract: Herein described are suture-anchoring implanted medical devices formed from a bioresorbable metal alloy that may be used to secure soft tissue to bone. The metallic bioresorbable tissue anchoring devices of the present invention are optimally configured such that all portions of the device are resorbed over a short predetermined period of time while maintaining their tissue anchoring capability and preventing the generation of loose foreign bodies therefrom.Type: GrantFiled: March 20, 2017Date of Patent: February 4, 2020Assignee: Tenjin LLCInventors: Christopher P. Dougherty, Gary R. Heisler, Robert A. Van Wyk
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Publication number: 20190290420Abstract: Described herein is a simplified placement system and method for a tissue graft anchor by which a surgeon may introduce one or more sutures into a hole in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the bone, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture. Particularly preferred embodiments allow for the one-handed operation. To that end, embodiments in which relative axial movement between the inner tensioning device and outer driver device is optionally physically constrained, for example by means of cooperating and/or compressive elements disposed in the respective hub and handle portions, are described herein.Type: ApplicationFiled: March 6, 2019Publication date: September 26, 2019Applicant: Tenjin LLCInventors: Christopher P. DOUGHERTY, Gary R. HEISLER, Robert A. VAN WYK
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Patent number: 10321919Abstract: Described herein are specialized endoscopic drilling devices that may be readily powered by a conventional shaver handpiece and further may be utilized to secure a soft tissue graft to a boney surface. More particularly, the devices, systems and methods of the present invention enable the efficient and minimally invasive formation of off-axis sockets and/or tunnels in boney surfaces that may then serve as a site for graft placement by aperture and/or suspensory fixation means. As such, the present invention has particular applicability to the surgical repair and reconstruction of torn or ruptured tissues, such as ligaments and tendons, in the leg, knee and shoulder, for example.Type: GrantFiled: October 7, 2016Date of Patent: June 18, 2019Assignee: TENJIN LLCInventors: Christopher P. Dougherty, Gary R. Heisler, Robert A. Van Wyk
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Publication number: 20190053888Abstract: Described herein is a simplified placement system and method for a tissue graft anchor by which a surgeon may introduce one or more sutures into a socket in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the socket, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture. Alternate embodiments of the anchor placement system and method of the present invention may forego tensioned sutures in favor of direct engagement with the soft tissue graft, whereby an end or a portion of the graft is trapped between an outer surface of the anchor and the boney surface of the wall of the socket such that friction force between the inserted portions of graft and socket maintains the position of graft relative to socket and bone. In either case, particularly preferred embodiments allow for the one-handed operation.Type: ApplicationFiled: October 19, 2018Publication date: February 21, 2019Applicant: Tenjin LLCInventors: Christopher P. DOUGHERTY, Gary R. Heisler, Robert A. Van Wyk
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Patent number: 10188417Abstract: In the context of bone surgery and in particular arthroscopic surgery, there is frequently a need for the application of “percussive force” to the distal end component(s) of a surgical device, i.e., repetitive percutient or striking force analogous to that of a hammer driving a nail. Disclosed herein are mechanisms and methods for automating and/or controlling the application of such a percussive force so as to avoid the present need in the art for a “third hand”. The present invention addresses the significant and long felt need by providing a powered percussive driver device that may be controlled directly by the primary surgeon.Type: GrantFiled: October 25, 2017Date of Patent: January 29, 2019Assignee: Tenjin, LLCInventors: Robert A. Van Wyk, Gary R. Heisler, Christopher P. Dougherty
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Patent number: 10149752Abstract: Described herein is a simplified placement system and method for a tissue graft anchor by which a surgeon may introduce one or more sutures into a hole in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the bone, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture. Particularly preferred embodiments allow for the one-handed operation. To that end, embodiments in which relative axial movement between the inner tensioning device and outer driver device is optionally physically constrained, for example by means of cooperating and/or compressive elements disposed in the respective hub and handle portions, are described herein.Type: GrantFiled: September 7, 2017Date of Patent: December 11, 2018Assignee: Tenjin LLCInventors: Christopher P. Dougherty, Gary R. Heisler, Robert A. Van Wyk
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Publication number: 20180289317Abstract: Various methods and machines have been used in the past to measure electrical characteristics of living tissue for purpose of locating an area of abnormal nervous system activity. However, whereas prior art methodologies merely allow for the detection of pain, the apparatus, system and method of the present invention allow for the objective assessment pain severity that finds utility not only the initial diagnosis but also the on-going treatment of any disease, disorder or injury associated therewith. To that end, the apparatus, system and method of the present invention allows medical practitioners to non-invasively and quantitatively distinguish organic pain from psychosomatic pain and legitimate pain patients from drug seekers and opiod addicts, as well as to directly and objectively compare the efficacy of different drug regimens and therapy protocols.Type: ApplicationFiled: December 14, 2017Publication date: October 11, 2018Applicant: Episcan Global, LLCInventors: David Michael SITTON, Christopher P. DOUGHERTY, Samuel F. ARNDT, III
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Publication number: 20180199954Abstract: Described herein is combination sealing and stabilizing collar component designed to both prevent the leakage of vacuum through the interface between an endoscopic shaver device and a powered handpiece that provides rotational motion thereto and stabilize the endoscopic shaver device when it is mounted onto the powered handpiece. The collar may be further coupled with a conventional cannula to prevent the leakage of intra-articular fluid when performing an arthroscopic procedure.Type: ApplicationFiled: January 17, 2018Publication date: July 19, 2018Applicant: Tenjin LLCInventors: Christopher P. DOUGHERTY, Gary R. Heisler, Robert A. Van Wyk
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Patent number: 9999496Abstract: Using the simplified placement system and method for a tissue graft anchor of the present invention, a surgeon may introduce one or more sutures into a hole in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the bone, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture. Particularly preferred embodiments of the present invention relate to multi-anchor constructs. Multi-anchor constructs of the present invention may employ threaded implants exclusively, push-in implants exclusively, or a combination of threaded and push-in implants.Type: GrantFiled: July 28, 2017Date of Patent: June 19, 2018Assignee: TENJIN LLCInventors: Christopher P. Dougherty, Gary R. Heisler, Robert A. Van Wyk
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Publication number: 20180125474Abstract: A number of surgical procedures, particularly orthopaedic procedures, involve manual percussion, typically mallet-applied. As discussed in detail herein, such procedures can be problematic as they not only require a second set of hands but are often associated with incomplete and/or uncontrolled axial movement and/or injury to the surgeon's hands. Described herein are specialized hand-held devices, as well as systems, kits, and methods associated therewith, that avoid such problems by joining or replacing the external “mallet” with an internal “hammer” that can automate the delivery of controlled repetitive “strikes”, more particularly repeated strikes to a proximal end of a drill, driver and/or insertion device, so as to mete out pre-determined incremental movement to a distal end component, such as a sharpened socket-forming tip, an interference-plug type suture anchor, or a dilating device for modifying the cross-section of a tunnel formed in a bone.Type: ApplicationFiled: November 7, 2017Publication date: May 10, 2018Applicant: Tenjin LLCInventors: Christopher P. Dougherty, Robert A. Van Wyk, Gary R. Heisler
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Patent number: 9907548Abstract: Described herein is a simplified placement system and method for a tissue graft or “suture anchor”, threaded, knotless or otherwise, by which a surgeon may introduce one or more sutures into a hole in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the bone, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture. The simplified placement system and method of the present invention allows the surgeon to establish the graft position and, while maintaining that position, secure the anchor without changing the suture tension or causing a shift in the graft position and furthermore, when the anchor is threaded, without spinning of the suture.Type: GrantFiled: February 10, 2017Date of Patent: March 6, 2018Assignee: Tenjin LLCInventors: Christopher P. Dougherty, Robert A. Van Wyk, Gary R. Heisler
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Publication number: 20180055527Abstract: In the context of bone surgery and in particular arthroscopic surgery, there is frequently a need for the application of “percussive force” to the distal end component(s) of a surgical device, i.e., repetitive percutient or striking force analogous to that of a hammer driving a nail. Disclosed herein are mechanisms and methods for automating and/or controlling the application of such a percussive force so as to avoid the present need in the art for a “third hand”. The present invention addresses the significant and long felt need by providing a powered percussive driver device that may be controlled directly by the primary surgeon.Type: ApplicationFiled: October 25, 2017Publication date: March 1, 2018Applicant: Tenjin LLCInventors: Robert A. VAN WYK, Gary R. HEISLER, Christopher P. DOUGHERTY
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Publication number: 20170367812Abstract: Described herein is a simplified placement system and method for a tissue graft anchor by which a surgeon may introduce one or more sutures into a hole in a boney tissue, apply a precise amount of tension to the sutures to advance a soft tissue graft to a desired location, and then advance the anchor into the bone, preferably while maintaining the requisite pre-determined suture tension and without introducing spin to the suture. Particularly preferred embodiments allow for the one-handed operation. To that end, embodiments in which relative axial movement between the inner tensioning device and outer driver device is optionally physically constrained, for example by means of cooperating and/or compressive elements disposed in the respective hub and handle portions, are described herein.Type: ApplicationFiled: September 7, 2017Publication date: December 28, 2017Applicant: Tenjin LLCInventors: Christopher P. Dougherty, Gary R. Heisler, Robert A. Van Wyk