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).
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Patent number: 9968972Abstract: 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: GrantFiled: September 3, 2014Date of Patent: May 15, 2018Assignee: Enteroptyx, Inc.Inventors: Anthony D. Prescott, Richard W. Mendius
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Patent number: 9320526Abstract: 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: GrantFiled: October 11, 2012Date of Patent: April 26, 2016Assignee: ENTEROPTYXInventors: Richard W. Mendius, Robert Wade Allen, Patrick Ireland
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Publication number: 20160059280Abstract: 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: ApplicationFiled: September 3, 2014Publication date: March 3, 2016Applicant: Enteroptyx, Inc.Inventors: Anthony D. Prescott, Richard W. Mendius
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Patent number: 9265655Abstract: 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: GrantFiled: June 5, 2013Date of Patent: February 23, 2016Assignee: EnteroptyxInventors: Richard W. Mendius, Robert W. Allen, J. Patrick Ireland, Connor James Robinson
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Publication number: 20140364891Abstract: 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: ApplicationFiled: June 5, 2013Publication date: December 11, 2014Applicant: EnteroptyxInventors: Richard W. Mendius, Robert W. Allen, J. Patrick Ireland, Connor James Robinson
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Patent number: 8641760Abstract: 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: GrantFiled: May 6, 2011Date of Patent: February 4, 2014Assignee: EnteroptyxInventors: Richard W. Mendius, Anthony D. Prescott, Patrick Ireland
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Publication number: 20130220346Abstract: 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: ApplicationFiled: February 28, 2012Publication date: August 29, 2013Inventors: Victor Lust, Jeffrey Miller, Gerald Yewey, Robert Wade Allen, Richard W. Mendius
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Publication number: 20120283827Abstract: 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: ApplicationFiled: May 6, 2011Publication date: November 8, 2012Inventors: Richard W. Mendius, Anthony D. Prescott, Patrick Ireland
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Publication number: 20080097602Abstract: 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: ApplicationFiled: October 23, 2006Publication date: April 24, 2008Inventors: Robert Brosnahan, Richard W. Mendius
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Publication number: 20080097603Abstract: 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: ApplicationFiled: May 17, 2007Publication date: April 24, 2008Inventors: Robert Brosnahan, Richard W. Mendius
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Patent number: 7204253Abstract: 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: GrantFiled: October 14, 2004Date of Patent: April 17, 2007Assignee: Clarity CorporationInventors: Richard W. Mendius, Anthony D. Prescott
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Patent number: 7037335Abstract: 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: GrantFiled: November 19, 2002Date of Patent: May 2, 2006Assignee: Eagle Vision, Inc.Inventors: Jerre M. Freeman, Richard W. Mendius
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Patent number: 7017580Abstract: 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: GrantFiled: May 22, 2003Date of Patent: March 28, 2006Assignee: Clarity CorporationInventors: Anthony D. Prescott, Richard W. Mendius
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Publication number: 20040231679Abstract: 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: ApplicationFiled: May 22, 2003Publication date: November 25, 2004Inventors: Anthony D. Prescott, Richard W. Mendius
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Publication number: 20040098123Abstract: 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: ApplicationFiled: November 19, 2002Publication date: May 20, 2004Inventors: Jerre M. Freeman, Richard W. Mendius
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Publication number: 20040098125Abstract: 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: ApplicationFiled: November 19, 2002Publication date: May 20, 2004Inventors: Jerre M. Freeman, Richard W. Mendius
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Publication number: 20040098124Abstract: 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: ApplicationFiled: November 19, 2002Publication date: May 20, 2004Inventors: Jerre M. Freeman, Richard W. Mendius
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Publication number: 20040098126Abstract: 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: ApplicationFiled: March 4, 2003Publication date: May 20, 2004Applicant: Eagle Vision, Inc.Inventors: Jerre M. Freeman, Wilson Pritchard, Richard W. Mendius
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Publication number: 20040068286Abstract: 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: ApplicationFiled: October 7, 2002Publication date: April 8, 2004Inventor: Richard W. Mendius
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Patent number: 6629533Abstract: 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: GrantFiled: June 30, 2000Date of Patent: October 7, 2003Assignee: Eagle Vision, Inc.Inventors: Nicholas J. Webb, Richard W. Mendius