Patents by Inventor Richard W. Mendius

Richard W. Mendius 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: 9968972
    Abstract: A cleaning system includes a surgical tool assembly having a longitudinal shaft and a sleeve surrounding the longitudinal shaft. The system includes an injector head and body that receive the assembly. The head has an inlet coupling that fluidly couples to a pressurized fluid source. The body couples to the head to house the assembly between the head and the body. The body has an outlet coupling to fluidly couple to a vacuum source. When the assembly is housed between the head and the body, at least one fluid pathway is formed between the inlet coupling, the head, the shaft and the sleeve, the body, and the outlet coupling. A positive pressure fluid source is coupled to the inlet coupling and a vacuum source is connected to the outlet coupling to establish a pressure differential across the fluid pathway sufficient to draw the fluid therethrough.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: May 15, 2018
    Assignee: Enteroptyx, Inc.
    Inventors: Anthony D. Prescott, Richard W. Mendius
  • Patent number: 9320526
    Abstract: A punctum plug includes a proximal head, a shaft, and a distal body, and an axial bore. The head is defined by a flexible circular flange with a convex upper portion and a concave lower portion. The body defines a frustoconically tapered distal tip and a two wings that extend in an arc and taper in thickness. The wings can extend further radially than the flange of the head. A recessed groove is defined around the shaft extending between the wings and a wall structure connecting the winged portions of the body. The above structure permits one plug or fewer plugs to accommodate a broad patient population.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: April 26, 2016
    Assignee: ENTEROPTYX
    Inventors: Richard W. Mendius, Robert Wade Allen, Patrick Ireland
  • Publication number: 20160059280
    Abstract: A cleaning system includes a surgical tool assembly having a longitudinal shaft and a sleeve surrounding the longitudinal shaft. The system includes an injector head and body that receive the assembly. The head has an inlet coupling that fluidly couples to a pressurized fluid source. The body couples to the head to house the assembly between the head and the body. The body has an outlet coupling to fluidly couple to a vacuum source. When the assembly is housed between the head and the body, at least one fluid pathway is formed between the inlet coupling, the head, the shaft and the sleeve, the body, and the outlet coupling. A positive pressure fluid source is coupled to the inlet coupling and a vacuum source is connected to the outlet coupling to establish a pressure differential across the fluid pathway sufficient to draw the fluid therethrough.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 3, 2016
    Applicant: Enteroptyx, Inc.
    Inventors: Anthony D. Prescott, Richard W. Mendius
  • Patent number: 9265655
    Abstract: A punctum dilating and plug inserting system includes an inserter and a protective cover defining a dilator. The inserter includes a longitudinal body, and a handle. The handle has a rounded stationary member and a trigger rotatably connected to the handle by a living hinge. A mounting wire extends through the body and is connected to the trigger. When the trigger is activated, the wire is retracted and a plug mounted on a distal end of the wire is released. A packaging is provided for receiving, protecting, and handling at least a portion of the entire inserter until ready for use. An end of the packaging includes a dilator dip for dilating the punctum in advance of receiving the punctum plug.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 23, 2016
    Assignee: Enteroptyx
    Inventors: Richard W. Mendius, Robert W. Allen, J. Patrick Ireland, Connor James Robinson
  • Publication number: 20140364891
    Abstract: A punctum dilating and plug inserting system includes an inserter and a protective cover defining a dilator. The inserter includes a longitudinal body, and a handle. The handle has a rounded stationary member and a trigger rotatably connected to the handle by a living hinge. A mounting wire extends through the body and is connected to the trigger. When the trigger is activated, the wire is retracted and a plug mounted on a distal end of the wire is released. A packaging is provided for receiving, protecting, and handling at least a portion of the entire inserter until ready for use. An end of the packaging includes a dilator dip for dilating the punctum in advance of receiving the punctum plug.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Applicant: Enteroptyx
    Inventors: Richard W. Mendius, Robert W. Allen, J. Patrick Ireland, Connor James Robinson
  • Patent number: 8641760
    Abstract: A system is provided for stabilized total ossicular replacement in a middle ear having an intact stapes with a capitulum and a footplate. The system includes an ossicular replacement prosthesis including with elongate shaft and a head coupled to the shaft, and a stabilizer that couples the prosthesis to the stapes. The stabilizer has a first portion with a first opening and a second portion with a second opening, said first opening sized to stably engage the shaft of the prosthesis, and said second opening sized to stably engage the capitulum. When the shaft and capitulum are engaged they are retained in an side-by side configuration. The stabilizer may be constructed of an elastic polymer, an elastic metal alloy, a plastic material or a shape memory material.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: February 4, 2014
    Assignee: Enteroptyx
    Inventors: Richard W. Mendius, Anthony D. Prescott, Patrick Ireland
  • Publication number: 20130220346
    Abstract: A lacrimal insert such as a punctal plug may incorporate a balloon or other similar structure to facilitate anchoring of the punctal plug within the lacrimal canaliculus. The balloon may be inflated once it is positioned and deflated if removal is required or desired. The balloon may be affixed to an external portion of the punctal plug or incorporated into a chamber within the punctal plug.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Inventors: Victor Lust, Jeffrey Miller, Gerald Yewey, Robert Wade Allen, Richard W. Mendius
  • Publication number: 20120283827
    Abstract: A system is provided for stabilized total ossicular replacement in a middle ear having an intact stapes with a capitulum and a footplate. The system includes an ossicular replacement prosthesis including with elongate shaft and a head coupled to the shaft, and a stabilizer that couples the prosthesis to the stapes. The stabilizer has a first portion with a first opening and a second portion with a second opening, said first opening sized to stably engage the shaft of the prosthesis, and said second opening sized to stably engage the capitulum. When the shaft and capitulum are engaged they are retained in an side-by side configuration. The stabilizer may be constructed of an elastic polymer, an elastic metal alloy, a plastic material or a shape memory material.
    Type: Application
    Filed: May 6, 2011
    Publication date: November 8, 2012
    Inventors: Richard W. Mendius, Anthony D. Prescott, Patrick Ireland
  • Publication number: 20080097602
    Abstract: An ossicular prosthesis has a shaft and a superelastic engagement structure coupled to the shaft. The engagement structure at least partially defines an opening and is deformable to widen the opening to permit a portion of an ossicle to be received therein. When the engagement structure is deformed to receive the portion of the ossicle, the stress in the engagement structure remains substantially constant throughout a majority of the deformation. The load required to deform the engagement structure into an open position is relatively small, facilitating the procedure as well as reducing the potential for damage to the intact ossicle.
    Type: Application
    Filed: October 23, 2006
    Publication date: April 24, 2008
    Inventors: Robert Brosnahan, Richard W. Mendius
  • Publication number: 20080097603
    Abstract: An ossicular prosthesis has a shaft and an elastic engagement structure coupled to the shaft. The engagement structure at least partially defines an opening and is deformable to widen the opening to permit a portion of an ossicle to be received therein. In one embodiment, the engagement structure is formed to provide substantially three point contact against ossicular structure of various diameters. In accord with preferred materials, when the engagement structure is deformed to receive the portion of the ossicle, the stress in the engagement structure remains substantially constant throughout a majority of the deformation. The load required to deform the engagement structure into an open position is relatively small, facilitating the procedure as well as reducing the potential for damage to the intact ossicle.
    Type: Application
    Filed: May 17, 2007
    Publication date: April 24, 2008
    Inventors: Robert Brosnahan, Richard W. Mendius
  • Patent number: 7204253
    Abstract: A punctum plug includes a body portion having a nose and rim portions which meet at an angle which facilitates both insertion and retention. In addition, the shaft of the plug includes a circumferential groove level with the top of the body which increases flexibility between the shaft and body of the plug. Furthermore, the groove locates the pivot point of the rim of the body radially inward which increases the flexibility of the rim.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: April 17, 2007
    Assignee: Clarity Corporation
    Inventors: Richard W. Mendius, Anthony D. Prescott
  • Patent number: 7037335
    Abstract: Scleral implants are provided having structure that locks the implant into incisions in the sclera and provide a stress thereto. In several embodiments, such structure includes a foot that extends laterally from a bottom of the implant, as well as an opening through which suture may be passed. Furthermore, the foot of the implant may be contoured to conform to the natural curvature of the sclera. In other embodiments, the implant is generally disc-shaped and includes a tab and a suture opening. With this implant, one or two pockets are defined in the sclera, preferably at eleven o'clock and/or one o'clock, the implant is placed therein, and the pocket incision may be closed with suture. The implant may also include a system for measuring and transmitting the intraocular pressure. With all the implants, the eye pressure is increased and/or the sclera is lifted to treat a disorder of the eye.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: May 2, 2006
    Assignee: Eagle Vision, Inc.
    Inventors: Jerre M. Freeman, Richard W. Mendius
  • Patent number: 7017580
    Abstract: A punctum plug system includes a punctum plug and an insertion tool therefor. In various embodiments of the invention, the plug includes an axial bore shaped in accord with a stepped cylinder, a cylinder having a tapered end, or a combination thereof. In each embodiment, a relatively proximal portion of the tip of the insertion tool extends within a relatively larger diameter proximal portion of the plug bore but does not frictionally engage such portion, and a relatively distal portion of the insertion tool tip frictionally engages the distal portion of the plug bore. The frictional engagement between the tool tip and the plug is preferably optimized such that once the plug is inserted into a punctum for which the plug is appropriately sized, the insertion tool may be removed simply by withdrawal of the tool, without wiggling the tool or stabilizing the plug with a second instrument.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: March 28, 2006
    Assignee: Clarity Corporation
    Inventors: Anthony D. Prescott, Richard W. Mendius
  • Publication number: 20040231679
    Abstract: A punctum plug system includes a punctum plug and an insertion tool therefor. In various embodiments of the invention, the plug includes an axial bore shaped in accord with a stepped cylinder, a cylinder having a tapered end, or a combination thereof. In each embodiment, a relatively proximal portion of the tip of the insertion tool extends within a relatively larger diameter proximal portion of the plug bore but does not frictionally engage such portion, and a relatively distal portion of the insertion tool tip frictionally engages the distal portion of the plug bore. The frictional engagement between the tool tip and the plug is preferably optimized such that once the plug is inserted into a punctum for which the plug is appropriately sized, the insertion tool may be removed simply by withdrawal of the tool, without wiggling the tool or stabilizing the plug with a second instrument.
    Type: Application
    Filed: May 22, 2003
    Publication date: November 25, 2004
    Inventors: Anthony D. Prescott, Richard W. Mendius
  • Publication number: 20040098123
    Abstract: Scleral implants are provided having structure that locks the implant into incisions in the sclera and provide a stress thereto. In several embodiments, such structure includes a foot that extends laterally from a bottom of the implant, as well as an opening through which suture may be passed. Furthermore, the foot of the implant may be contoured to conform to the natural curvature of the sclera. In other embodiments, the implant is generally disc-shaped and includes a tab and a suture opening. With this implant, one or two pockets are defined in the sclera, preferably at eleven o'clock and/or one o'clock, the implant is placed therein, and the pocket incision may be closed with suture. The implant may also include a system for measuring and transmitting the intraocular pressure. With all the implants, the eye pressure is increased and/or the sclera is lifted to treat a disorder of the eye.
    Type: Application
    Filed: November 19, 2002
    Publication date: May 20, 2004
    Inventors: Jerre M. Freeman, Richard W. Mendius
  • Publication number: 20040098125
    Abstract: Scleral implants are provided having structure that locks the implant into incisions in the sclera and provide a stress thereto. In several embodiments, such structure includes a foot that extends laterally from a bottom of the implant, as well as an opening through which suture may be passed. Furthermore, the foot of the implant may be contoured to conform to the natural curvature of the sclera. In other embodiments, the implant is generally disc-shaped and includes a tab and a suture opening. With this implant, one or two pockets are defined in the sclera, preferably at eleven o'clock and/or one o'clock, the implant is placed therein, and the pocket incision may be closed with suture. The implant may also include a system for measuring and transmitting the intraocular pressure. With all the implants, the eye pressure is increased and/or the sclera is lifted to treat a disorder of the eye.
    Type: Application
    Filed: November 19, 2002
    Publication date: May 20, 2004
    Inventors: Jerre M. Freeman, Richard W. Mendius
  • Publication number: 20040098124
    Abstract: Scleral implants are provided having structure that locks the implant into incisions in the sclera and provide a stress thereto. In several embodiments, such structure includes a foot that extends laterally from a bottom of the implant, as well as an opening through which suture may be passed. Furthermore, the foot of the implant may be contoured to conform to the natural curvature of the sclera. In other embodiments, the implant is generally disc-shaped and includes a tab and a suture opening. With this implant, one or two pockets are defined in the sclera, preferably at eleven o'clock and/or one o'clock, the implant is placed therein, and the pocket incision may be closed with suture. The implant may also include a system for measuring and transmitting the intraocular pressure. With all the implants, the eye pressure is increased and/or the sclera is lifted to treat a disorder of the eye.
    Type: Application
    Filed: November 19, 2002
    Publication date: May 20, 2004
    Inventors: Jerre M. Freeman, Richard W. Mendius
  • Publication number: 20040098126
    Abstract: Scleral implants are provided having structure that locks the implant into incisions in the sclera and provide a stress thereto. In several embodiments, such structure includes an upstanding rib that registers the implant within a scleral incision. The implant also includes an upper convex contour and a lower flatter surface. When implanted, the implant operates to increase the eye pressure and/or provide volumetric expansion of the eye to treat a disorder of the eye.
    Type: Application
    Filed: March 4, 2003
    Publication date: May 20, 2004
    Applicant: Eagle Vision, Inc.
    Inventors: Jerre M. Freeman, Wilson Pritchard, Richard W. Mendius
  • Publication number: 20040068286
    Abstract: A dilating and plug inserting instrument includes a tubular body having at each of its ends a punctum plug mount and a mechanism for individually releasing the plugs therefrom. In addition, the instrument includes removable clear dilating caps provided over the plug mounts which in addition to permitting dilation of the punctum provides a protective enclosure for the plug until the cap is removed. A method is also provided for dilating a punctum and inserting a plug using a single instrument without necessitating using opposite ends of the instrument. An advantageous packaging system is also provided for the instrument/plug system.
    Type: Application
    Filed: October 7, 2002
    Publication date: April 8, 2004
    Inventor: Richard W. Mendius
  • Patent number: 6629533
    Abstract: A punctum plug generally includes a shaft and a head at a proximal end of the shaft. The shaft is provided with at least one circumferentially radiating flexible anchoring arm of varying radial extension at at least two locations along its length which is adapted to secure the punctum plug within the punctum of a wearer. The head has a concave proximal surface and a distal surface which tapers toward the shaft. A diameter of the head is substantially larger than a diameter of the shaft. According to a first embodiment of the invention, a plurality of anchoring arms in the form of symmetric circumferential rings are spaced a distance apart along a length of the shaft and define spaces therebetween. One or more of the rings has a diameter equal to or larger than the diameter of the head of the plug, and different rings preferably have different diameters.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: October 7, 2003
    Assignee: Eagle Vision, Inc.
    Inventors: Nicholas J. Webb, Richard W. Mendius