Patents by Inventor David Louis Kirschman

David Louis Kirschman 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).

  • Patent number: 8998906
    Abstract: A surgical implant inserter compressor is shown having a plurality of jaws and is adapted to permit at least one or both jaws to move generally parallel with respect to each other or move along an axis wherein the jaws remain in a plane that is generally perpendicular to that axis. The surgical implant inserter compressor is adapted for implanting at least one or a plurality of plates onto a pair of spinous processes and is adapted to distribute the clamping force with which the implants engage the spinous processes. The surgical implant inserter compressor may be adapted to permit one or both jaws to float or pivot to accommodate different anatomical structures, such as spinous processes that are not aligned, are of different sizes or shape and the like. An optional tool guide for guiding a tool to drive a lock to lock the plates together is also shown.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: April 7, 2015
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8992587
    Abstract: A surgical implant comprising a screw element having a screw head, a first thread having a first thread pitch, a second thread having a second thread pitch and an intermediate portion coupling the first and second thread pitches with the first and second thread pitches being different. The implant has a buttressing head associated with the first thread, and it is dimensioned to be larger than a diameter of the first threads to provide external buttressing as the first and second threads compress a first bone and a second bone together.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: March 31, 2015
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8986307
    Abstract: A surgical instrument for inserting an implant is shown. The instrument has a housing having a first end and a second end, a rotatable drive member having an elongated member comprising a grip that is associated with the first end, an implant holder having a securing member that extends through the second end and that is adapted to receive and hold the implant. A universal joint couples the implant holder and the elongated member and is adapted to permit a user to rotatably drive the implant holder when the implant holder is in a pivoted position.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: March 24, 2015
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8979934
    Abstract: An orthopedic implant comprising a substrate material adapted to provide the orthopedic implant. The implant has a primary friction area located on or integral with the substrate material. The primary friction area defining an engagement surface having a primary frictional feature. A secondary friction area is located on or integral with the engagement surface and defining a second frictional feature. The primary friction area and the secondary friction area defining a friction interface zone between the orthopedic implant and at least one bone. The secondary friction area increases a friction of the engagement surface and modulus of elasticity to enhance the frictional engagement between the engagement surface and the at least one bone.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: March 17, 2015
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8945227
    Abstract: A system and method for substantially simultaneous co-insertion of an implant, such as a cage and plate. An inserter is secured to the cage and plate and is used to hold the components while implanting the components during a surgical procedure.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: February 3, 2015
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8945193
    Abstract: A system comprising a screw element having a generally cylindrical body having a bore or lumen therethrough and a plurality of fenestrations or windows through which biological material may be provided. The system comprises a tool for inserting the biological material into the screw element so that the biological material may extrude through the plurality of fenestrations or windows and through an aperture in the tip of the screw element thereby enabling providing a fusion mass across two adjacent facet bones or a facet joint wherein the screw itself provides both a fixation component and a screw component.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: February 3, 2015
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8932333
    Abstract: A modular interspinous fixation system and method are shown. The system and method comprise a first plate, a second plate and a locking cross bar for locking the first and second plates together and into locked engagement with a first spinous process and a second spinous process. A bridge is mounted or received on the locking cross bar so that it becomes locked onto the locking cross bar when the locking cross bar is in locked engagement. The bridge and locking cross bar are adapted so that the bridge does not rotate about its axis while on the locking cross bar. Various other embodiments are shown illustrating various bridges of different shapes and sizes, integral and non-integral locking cross bars and even a ramped locking cross bar for facilitating preventing separation of the first and second plates after they are mounted to the first and second spinous processes.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: January 13, 2015
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Publication number: 20140371794
    Abstract: A modular interspinous fixation system and method are shown. The system and method comprise a first plate, a second plate and a locking cross bar for locking the first and second plates together and into locked engagement with a first spinous process and a second spinous process. A bridge is mounted or received on the locking cross bar so that it becomes locked onto the locking cross bar when the locking cross bar is in locked engagement. The bridge and locking cross bar are adapted so that the bridge does not rotate about its axis while on the locking cross bar. Various other embodiments are shown illustrating various bridges of different shapes and sizes, integral and non-integral locking cross bars and even a ramped locking cross bar for facilitating preventing separation of the first and second plates after they are mounted to the first and second spinous processes.
    Type: Application
    Filed: August 11, 2014
    Publication date: December 18, 2014
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Louis Kirschman
  • Publication number: 20140350605
    Abstract: An implant having a receiver that is adapted to receive a polyaxial screw in the bore and either an internal or external cap. The cap can be an external or internal cap and the implant further has at least one locking aid in the form of at least one of a tactile feedback, a visual feedback or an enhanced fixation between the cap and a rod that is received in the receiver.
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Louis Kirschman
  • Publication number: 20140348701
    Abstract: A system, unit, device and method are shown for providing substantially simultaneous disinfection of bacteria or other pathogens in air passing through the system using C-band ultraviolet radiation from an ultraviolet light source and that is also capable of substantially simultaneous and efficient disinfecting air and surfaces outside the device using the same ultraviolet light source.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Applicant: AEROBIOTIX, LLC
    Inventor: David Louis Kirschman
  • Publication number: 20140324173
    Abstract: This invention relates to a spinal fusion system and method for use as a prosthetic implant. The system and method includes a housing dimensioned to be situated between adjacent spinal bones, such as adjacent vertebrae. The housing cooperates with the spinal bones to define a graft area for receiving graft material, which may be inserted anteriorly into the housing during a surgical operation such as a vertebrectomy or discectomy. A housing may have various features such as migration preventers to prevent the housing from migrating posteriorly towards a spinal column and can be used with a cover that permits the housing to “float” relative thereto. Screws are provided in one embodiment and are dimensioned or configured to lock against each other to retain the screws and, consequently, the cover in place.
    Type: Application
    Filed: July 8, 2014
    Publication date: October 30, 2014
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Louis Kirschman
  • Publication number: 20140277456
    Abstract: An implant assembly is shown and described. The implant has at least one or a plurality of elastic, resilient or flexible arms that each have a detent adapted to retain at least one screw in a locked position in the implant. At least one of the arms has a portion that extends into a screw aperture such that an arm axis is generally parallel to the axis of the screw after the screw is received in the implant. In another embodiment, means or a system for locking the multi-component implant members together is shown.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8821553
    Abstract: Spinal fusion system utilizing an implant plate having at least one integral lock.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: September 2, 2014
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8801761
    Abstract: An implant having a receiver that is adapted to receive a polyaxial screw in the bore and either an internal or external cap. The cap can be an external or internal cap and the implant further has at least one locking aid in the form of at least one of a tactile feedback, a visual feedback or an enhanced fixation between the cap and a rod that is received in the receiver.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 12, 2014
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Publication number: 20140222081
    Abstract: A retractor system and method for locating and placing a polyaxial screw while substantially simultaneously retracting tissue is shown and described. The retractor has a channel that facilitates introducing a rod into the polyaxial screw. Various embodiments are shown, including one which utilized a reducer for moving the rod in the retractor.
    Type: Application
    Filed: April 4, 2014
    Publication date: August 7, 2014
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Louis Kirschman
  • Patent number: 8795370
    Abstract: This invention relates to a spinal fusion system and method for use as a prosthetic implant. The system and method includes a housing dimensioned to be situated between adjacent spinal bones, such as adjacent vertebrae. The housing cooperates with the spinal bones to define a graft area for receiving graft material, which may be inserted anteriorly into the housing during a surgical operation such as a vertebrectomy or discectomy. A housing may have various features such as migration preventers to prevent the housing from migrating posteriorly towards a spinal column and can be used with a cover that permits the housing to “float” relative thereto. Screws are provided in one embodiment and are dimensioned or configured to lock against each other to retain the screws and, consequently, the cover in place.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 5, 2014
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Publication number: 20140200668
    Abstract: An implant system having an inserter or implant-drill guide defining a plurality of overlapping bores or elongated passageways. The inserter or implant-drill bit guide provides a drill jig for defining a complementary-shaped drilled-out area in the first and second vertebra. The implant comprises a plurality or lobes or lobate shapes that are adapted in size to be snugly fit into the implant receiving area.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 17, 2014
    Applicant: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Publication number: 20140157989
    Abstract: A fluid filtration system is shown. The fluid filtration system utilizes a one-piece or multiple piece containers having a plurality of radiation-transmissible media adapted to receive light, such as ultraviolet light, white light or other wavelength light. The radiation-transmissible media are situated in the container and at least one or a plurality of radiation sources, such as ultraviolet lamps, are situated in an array in proximity to the radiation-transmissible media. The radiation-transmissible media interrupts the flow and velocity of the fluid stream passing through the container to extend the duration of radiation for any contaminants and also provide enlarged surface areas for the contaminants to be received and ultimately exposed to the radiation. In one example, the radiation-transmissible media may be tubular or spherical sections that are hollow or solid and made of quartz.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 12, 2014
    Applicant: AEROBIOTIX, LLC
    Inventor: David Louis Kirschman
  • Patent number: 8734493
    Abstract: This invention relates to a bony fixation system and method for use as a prosthetic implant. The system and method includes a plate dimensioned to be situated between adjacent bony structures, such as adjacent vertebrae. Screws are provided in one embodiment and are dimensioned or configured to be inserted into a bony structure and to lock against each other to retain the screws and consequently secure the plate in place against the bony structure.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: May 27, 2014
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8728130
    Abstract: Spinal fusion system and method utilizing an implant and screw, wherein at least one pawl is mounted on or integral with the screw to prevent said plate or screw from moving in at least one of an axial direction or a rotational direction.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: May 20, 2014
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman