Patents by Inventor Derek J. Harper

Derek J. Harper 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).

  • Publication number: 20190069987
    Abstract: A soft tissue fixation system, most typically applicable to orthopedic joint repairs, such as anterior cruciate ligament (ACL) knee repair procedures, comprises an implant which is placeable in a tunnel disposed in a portion of hone, wherein the tunnel is defined by walls comprised of bone. A first member is deployable outwardly to engage the tunnel walls for anchoring the implant in place in the tunnel, and a second member is deployable outwardly to engage tissue material to be fixed within the tunnel. The second member also functions to move the tissue material outwardly into contact with the tunnel walls to promote tendon-bone fixation. Extra graft length is eliminated by compression of the tendon against the hone at the aperture of the femoral tunnel, which more closely replicates the native ACL and increases graft stiffness. The inventive device provides high fixation of tendon to bone and active tendon-bone compression.
    Type: Application
    Filed: October 5, 2018
    Publication date: March 7, 2019
    Inventors: Kevin N. Baird, Derek J. Harper, Joe P. Kovalski, Kenneth D Montgomery
  • Patent number: 10123867
    Abstract: A system and method for making an orthopedic repair by fixing a soft tissue graft to bone, utilizes an implant including a body wedge having first and second outwardly expandable wedge portions, a wing portion having outwardly expandable wings, and a deployment member which is movable distally into the implant to deploy the wedge portions and the wings into an expanded deployed orientation.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: November 13, 2018
    Assignee: Cayenne Medical, Inc.
    Inventors: Kevin N. Baird, Derek J. Harper
  • Patent number: 10117739
    Abstract: A soft tissue fixation system, most typically applicable to orthopedic joint repairs, such as anterior cruciate ligament (ACL) knee repair procedures, comprises an implant which is placeable in a tunnel disposed in a portion of bone, wherein the tunnel is defined by walls comprised of bone. A first member is deployable outwardly to engage the tunnel walls for anchoring the implant in place in the tunnel, and a second member is deployable outwardly to engage tissue material to be fixed within the tunnel. The second member also functions to move the tissue material outwardly into contact with the tunnel walls to promote tendon-bone fixation. Extra graft length is eliminated by compression of the tendon against the bone at the aperture of the femoral tunnel, which more closely replicates the native ACL and increases graft stiffness. The inventive device provides high fixation of tendon to bone and active tendon-bone compression.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: November 6, 2018
    Assignee: Cayenne Medical, Inc.
    Inventors: Kevin N. Baird, Derek J. Harper, Joe P. Kovalski, Kenneth D Montgomery
  • Publication number: 20180310930
    Abstract: A simple, threaded suture anchor is pre-loaded with suture in a configuration that allows a surgeon to compress tissue against the bone without tying a knot. The knot-tying step is replaced by a simple suture looping step which requires less time and is not prone to errors in knot tying technique. The suture anchor is a screw-in style anchor body. The suture is loaded into the anchor in a configuration that allows it to create a loop on top of the tissue after it has been passed through the tissue from bottom to top. The suture limbs are then loaded into a knotless anchor which is implanted off the lateral edge of the tissue. Tensioning of the suture limbs in the knotless anchor tightens the loop on top of the tissue, providing a fulcrum point of fixation over the pre-loaded suture anchor without the otherwise need for requisite knot tying.
    Type: Application
    Filed: July 2, 2018
    Publication date: November 1, 2018
    Inventors: Kevin S. Nason, Derek J. Harper, Kevin N. Baird, James C. Dreese
  • Publication number: 20180214145
    Abstract: An all-suture suture anchor system includes an all-suture anchor, an inserter, and a specially designed drill. The drill is used to enlarge the hole and create a pocket under the bone surface from the pre-drilled hole. The created pocket is intended to accommodate the expansion of the anchor when deployed into the bone, generating a true mechanical interference under the bone surface. The anchor is loaded on the inserter and placed at full length vertically inside the drilled hole. While holding the inserter on top of the drilled hole, so that a feature on the inserter keeps the anchor to a desired depth below the bone surface, tension is applied to the suture limb that is connected to the bottom end of the anchor. This tensioning step to causes the length of the anchor to contract vertically and the anchor is simultaneously expanded circumferentially to fill the pocket previously created by the drill.
    Type: Application
    Filed: March 28, 2018
    Publication date: August 2, 2018
    Inventors: Hoang P Nguyen, Derek J. Harper, Kevin N. Baird
  • Patent number: 10034663
    Abstract: A simple, threaded suture anchor is pre-loaded with suture in a configuration that allows a surgeon to compress tissue against the bone without tying a knot. The knot-tying step is replaced by a simple suture looping step which requires less time and is not prone to errors in knot tying technique. The suture anchor is a screw-in style anchor body. The suture is loaded into the anchor in a configuration that allows it to create a loop on top of the tissue after it has been passed through the tissue from bottom to top. The suture limbs are then loaded into a knotless anchor which is implanted off the lateral edge of the tissue. Tensioning of the suture limbs in the knotless anchor tightens the loop on top of the tissue, providing a fulcrum point of fixation over the pre-loaded suture anchor without the otherwise need for requisite knot tying.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: July 31, 2018
    Assignee: Cayenne Medical, Inc.
    Inventors: Kevin S. Nason, Derek J. Harper, Kevin N. Baird, James C. Dreese
  • Patent number: 9949733
    Abstract: An all-suture suture anchor system includes an all-suture anchor, an inserter, and a specially designed drill. The drill is used to enlarge the hole and create a pocket under the bone surface from the pre-drilled hole. The created pocket is intended to accommodate the expansion of the anchor when deployed into the bone, generating a true mechanical interference under the bone surface. The anchor is loaded on the inserter and placed at full length vertically inside the drilled hole. While holding the inserter on top of the drilled hole, so that a feature on the inserter keeps the anchor to a desired depth below the bone surface, tension is applied to the suture limb that is connected to the bottom end of the anchor. This tensioning step causes the length of the anchor to contract vertically and the anchor is simultaneously expanded circumferentially to fill the pocket previously created by the drill.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: April 24, 2018
    Assignee: Cayenne Medical, Inc.
    Inventors: Hoang P. Nguyen, Derek J. Harper, Kevin N. Baird
  • Patent number: 9901334
    Abstract: An anchoring system is a combination of a nanofiber scaffold material and an arthroscopically deployable suture anchor. The anchor is deployed into a bone tunnel using common techniques. The nanofiber material extends out of the proximal end of the implant, once deployed. The implant also includes pre-loaded sutures or has the ability to accept and lock sutures to the implant. For an implant pre-loaded with suture, the implant is placed into the bone, the material is deployed above the anchor onto the surface of the bone, suture is passed through the soft tissue, and knots are tied to secure the tissue against the bone, sandwiching the material between the bone and tissue, to provide a pathway for cells from the bone marrow to the soft tissue-bone interface, promote the healing response, provide a biomimetic structure that cells readily adhere to, and create a larger healing footprint.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: February 27, 2018
    Assignee: Cayenne Medical, Inc.
    Inventors: Kevin N. Baird, Derek J. Harper, Kevin S. Nason
  • Publication number: 20180042601
    Abstract: An anchoring system is a combination of a nanofiber scaffold material and an arthroscopically deployable suture anchor. The anchor is deployed into a bone tunnel using common techniques. The nanofiber material extends out of the proximal end of the implant, once deployed. The implant also includes pre-loaded sutures or has the ability to accept and lock sutures to the implant. For an implant pre-loaded with suture, the implant is placed into the bone, the material is deployed above the anchor onto the surface of the bone, suture is passed through the soft tissue, and knots are tied to secure the tissue against the bone, sandwiching the material between the bone and tissue, to provide a pathway for cells from the bone marrow to the soft tissue-bone interface, promote the healing response, provide a biomimetic structure that cells readily adhere to, and create a larger healing footprint.
    Type: Application
    Filed: October 30, 2017
    Publication date: February 15, 2018
    Inventors: Kevin N. Baird, Derek J. Harper, Kevin S. Nason
  • Patent number: 9731101
    Abstract: A drainage system that includes a ventricular catheter, a drainage catheter, and a positive displacement pump that can function to actively drain CSF from the ventricles of the brain of a patient. The pump can include, for example, a diaphragm pump, a piston pump, a rotor pump, a peristaltic pump, or a screw pump.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: August 15, 2017
    Assignee: Medtronic, Inc.
    Inventors: William J. Bertrand, Derek J. Harper, Lori Cone Speckman, Andrew R. Kiehl, Ron D. Scheer
  • Publication number: 20170202660
    Abstract: A soft tissue fixation system, most typically applicable to orthopedic joint repairs, such as anterior cruciate ligament (ACL) knee repair procedures, comprises an implant which is placeable in a tunnel disposed in a portion of bone, wherein the tunnel is defined by walls comprised of bone. A first member is deployable outwardly to engage the tunnel walls for anchoring the implant in place in the tunnel, and a second member is deployable outwardly to engage tissue material to be fixed within the tunnel. The second member also functions to move the tissue material outwardly into contact with the tunnel walls to promote tendon-bone fixation. Extra graft length is eliminated by compression of the tendon against the bone at the aperture of the femoral tunnel, which more closely replicates the native ACL and increases graft stiffness. The inventive device provides high fixation of tendon to bone and active tendon-bone compression.
    Type: Application
    Filed: February 2, 2017
    Publication date: July 20, 2017
    Inventors: Kevin N. Baird, Derek J. Harper, Joe P. Kovalski, Kenneth D. Montgomery
  • Publication number: 20170156718
    Abstract: A method of anchoring soft tissue to a suitable bone site, using a soft suture anchor, includes steps of disposing the soft suture anchor on a shaft of an inserter, and securing a proximal end of a tensioning suture limb, extending proximally from the soft suture anchor, to structure in a handle of the inserter, so that it is maintained in place at a first level of holding tension (Thold). The inserter shaft is inserted into a bone hole at a desired procedural site, so that the soft suture anchor is positioned at a location where it is to be anchored. A further step involves actuating a control mechanism in the inserter handle to move the structure proximally to apply a second level of deployment tension (Tload) to the tensioning suture limb.
    Type: Application
    Filed: February 16, 2017
    Publication date: June 8, 2017
    Inventors: Kevin S. Nason, Hoang P. Nguyen, Kevin N. Baird, Derek J. Harper
  • Patent number: 9622740
    Abstract: A method of anchoring soft tissue to a suitable bone site, using a soft suture anchor, includes steps of disposing the soft suture anchor on a shaft of an inserter, and securing a proximal end of a tensioning suture limb, extending proximally from the soft suture anchor, to structure in a handle of the inserter, so that it is maintained in place at a first level of holding tension (Thold). The inserter shaft is inserted into a bone hole at a desired procedural site, so that the soft suture anchor is positioned at a location where it is to be anchored. A further step involves actuating a control mechanism in the inserter handle to move the structure proximally to apply a second level of deployment tension (Tload) to the tensioning suture limb.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: April 18, 2017
    Assignee: Cayenne Medical, Inc.
    Inventors: Kevin S. Nason, Hoang Nguyen, Kevin N. Baird, Derek J. Harper
  • Patent number: 9597175
    Abstract: A soft tissue fixation system, most typically applicable to orthopedic joint repairs, such as anterior cruciate ligament (ACL) knee repair procedures, comprises an implant which is placeable in a tunnel disposed in a portion of bone, wherein the tunnel is defined by walls comprised of bone. A first member is deployable outwardly to engage the tunnel walls for anchoring the implant in place in the tunnel, and a second member is deployable outwardly to engage tissue material to be fixed within the tunnel. The second member also functions to move the tissue material outwardly into contact with the tunnel walls to promote tendon-bone fixation. Extra graft length is eliminated by compression of the tendon against the bone at the aperture of the femoral tunnel, which more closely replicates the native ACL and increases graft stiffness. The inventive device provides high fixation of tendon to bone and active tendon-bone compression.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: March 21, 2017
    Assignee: Cayenne Medical, Inc.
    Inventors: Kevin N. Baird, Derek J. Harper, Joe P. Kovalski, Kenneth D. Montgomery
  • Publication number: 20160367356
    Abstract: A system and method for making an orthopedic repair by fixing a soft tissue graft to bone, utilizes an implant including a body wedge having first and second outwardly expandable wedge portions, a wing portion having outwardly expandable wings, and a deployment member which is movable distally into the implant to deploy the wedge portions and the wings into an expanded deployed orientation.
    Type: Application
    Filed: September 1, 2016
    Publication date: December 22, 2016
    Inventors: Kevin N. Baird, Derek J. Harper
  • Publication number: 20160338688
    Abstract: A wicking component is integrated into an arthroscopically deployable bone anchor, and is intended to improve soft tissue-to-bone repair. Once deployed, the fibrous wick component extends from within the bone tunnel, out of the hole, and to the bone-tendon interface on the bone surface. The tissue is approximated against the bone, sandwiching the wick material between the bone and tissue. The wick component is ideally a polymeric fibrous or tissue-based scaffold that provides a pathway for cells (autologous bone marrow constituents and blood) to travel from within the bone to the soft tissue-bone interface, accelerating and promoting the healing response. The system provides a biomimetic structure that stimulates the extracellular matrix to encourage cell attachment and potentially improve the healing response. The wick component does not need to be integrated into a suture anchor and installed when the suture anchor is deployed.
    Type: Application
    Filed: May 21, 2016
    Publication date: November 24, 2016
    Inventors: Kevin S. Nason, Kevin N. Baird, Derek J. Harper
  • Patent number: 9452042
    Abstract: A system and method for making an orthopedic repair by fixing a soft tissue graft to bone, utilizes an implant including a body wedge having first and second outwardly expandable wedge portions, a wing portion having outwardly expandable wings, and a deployment member which is movable distally into the implant to deploy the wedge portions and the wings into an expanded deployed orientation.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: September 27, 2016
    Assignee: Cayenne Medical, Inc.
    Inventors: Kevin N. Baird, Derek J. Harper
  • Publication number: 20150250471
    Abstract: A method of anchoring soft tissue to a suitable bone site, using a soft suture anchor, includes steps of disposing the soft suture anchor on a shaft of an inserter, and securing a proximal end of a tensioning suture limb, extending proximally from the soft suture anchor, to structure in a handle of the inserter, so that it is maintained in place at a first level of holding tension (Thold). The inserter shaft is inserted into a bone hole at a desired procedural site, so that the soft suture anchor is positioned at a location where it is to be anchored. A further step involves actuating a control mechanism in the inserter handle to move the structure proximally to apply a second level of deployment tension (Tload) to the tensioning suture limb.
    Type: Application
    Filed: March 5, 2015
    Publication date: September 10, 2015
    Inventors: Kevin S. Nason, Hoang Nguyen, Kevin N. Baird, Derek J. Harper
  • Patent number: 8968374
    Abstract: A biocompatible interference screw for soft tissue or bone-to-bone fixation comprises a screw body extending from a screw head to a distal tip of the screw. The screw body has an outer surface, and comprises polyether-ether-ketone (PEEK) material. Advantageously, the body outer surface has a textured surface finish for substantially improving pull-out strength of the interference screw. The textured surface finish is textured, in preferred embodiments, with a minimum of approximately 16 micro inches of surface roughness. The screw head comprises a tapered square keyhole for receiving a distal end of a driver instrument. The screw comprises a series of threads, which have a relatively smooth profile, in order to prevent graft tissue laceration as the screw is being inserted. The distal tip of the screw body comprises a narrow tip, and a distal end of the screw body is angled inwardly toward the narrow distal tip.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: March 3, 2015
    Assignee: Cayenne Medical, Inc.
    Inventors: Jordan A. Hoof, Kevin N. Baird, Derek J. Harper
  • Publication number: 20140114411
    Abstract: A system and method for making an orthopedic repair by fixing a soft tissue graft to bone, utilizes an implant including a body wedge having first and second outwardly expandable wedge portions, a wing portion having outwardly expandable wings, and a deployment member which is movable distally into the implant to deploy the wedge portions and the wings into an expanded deployed orientation.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 24, 2014
    Applicant: Cayenne Medical, Inc.
    Inventors: Kevin N. Baird, Derek J. Harper