Patents by Inventor Cesario P. Dos Santos
Cesario P. Dos Santos 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: 9333115Abstract: A drainage device for implantation in an eye of a patient to treat an ocular condition is disclosed. The drainage device includes a housing, a multi-compartment flow control chamber, and a membrane. The housing includes an entrance port and an exit port connected by a fluid flow passageway. The membrane is disposed between the fluid flow passageway and the multi-compartment flow control chamber, which includes a first compartment and a second compartment in fluid communication with each other. The first and second compartments are structurally arranged to limit contact of gas with the membrane, which is disposed between the fluid flow passageway and first compartment. The membrane is configured to affect flow through the fluid flow passageway by deflecting in response to pressure in the flow control chamber.Type: GrantFiled: December 10, 2012Date of Patent: May 10, 2016Assignee: Alcon Research, Ltd.Inventor: Cesario P. Dos Santos
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Patent number: 9259353Abstract: A fluid flow-regulating system includes an electrolysis chamber configured to contain a liquid, and includes first and second electrodes disposed within the electrolysis chamber. A gap between opposing surfaces is sized to promote capillary action of a liquid in the electrolysis chamber that draws the liquid to at least one of the first and second electrodes in a manner allowing the flow-regulating system to be placed in multiple orientations and still have said one of the first and second electrodes wetted by capillary action.Type: GrantFiled: October 11, 2012Date of Patent: February 16, 2016Assignee: Alcon Research, Ltd.Inventors: Cesario P. Dos Santos, Nicholas M. Gunn, Leslie A. Field
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Patent number: 9132034Abstract: An IOP control device for implantation in an eye of a patient is disclosed, including a housing with an entrance port and an exit port, a membrane anchored within the housing in a manner forming a flow control chamber on a first side of the membrane and a fluid flow passageway on a second opposing side of the membrane, and a position sensor system. The flow control chamber is arranged to contain a gas creating a flow control chamber pressure, and the membrane is configured to affect flow through the fluid flow passageway from the entrance port to the exit port by deflecting in response to changes in the flow control chamber pressure. The position sensor system includes a first conductive portion and a second conductive portion positioned to selectively contact the first conductive portion to indicate the position of the membrane relative to the fluid flow passageway.Type: GrantFiled: October 1, 2012Date of Patent: September 15, 2015Assignee: Alcon Research, Ltd.Inventor: Cesario P. Dos Santos
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Patent number: 8986240Abstract: An IOP control valve is disclosed. The IOP control valve comprises a corrugated membrane and a housing including a fluid inlet and a fluid outlet. The corrugated membrane is anchored within the housing to form a reference chamber on a first side of the corrugated membrane and a fluid flow channel on a second opposing side of the membrane. The reference chamber has a reference chamber pressure representative of atmospheric pressure. The fluid flow channel can selectively increase and decrease in size to permit fluid to flow from the fluid inlet to the fluid outlet. The corrugated membrane is configured to affect flow through the fluid flow channel from the fluid inlet to the fluid outlet by deflecting in response to pressure differentials of the reference chamber pressure and the fluid flow channel pressure acting on the opposing sides of the corrugated membrane.Type: GrantFiled: February 14, 2012Date of Patent: March 24, 2015Assignee: Alcon Research, Ltd.Inventors: Cesario P Dos Santos, Robert J Sanchez, Jr., Leslie A Field
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Patent number: 8864701Abstract: An implantable MEMS package for the treatment of an ocular condition is provided. The MEMS package includes an outer portion; an active portion attached to the outer portion, the active portion including a fluid regulating element having a moving element; and a fluidic channel at an interface of the outer portion and the active portion. The fluidic channel is formed in at least one of the outer and active portions and permits fluid communication from the MEMS package to the fluid regulating element. A method for forming a MEMS package as above is also provided. An ocular implant for treating glaucoma including an inlet tube for receiving aqueous humor; a MEMS package as above, coupled to the inlet tube; a control system to control the MEMS package; and an outlet tube for draining aqueous humor at a drainage location, is provided.Type: GrantFiled: August 13, 2012Date of Patent: October 21, 2014Assignee: Alcon Research, Ltd.Inventors: Cesario P. Dos Santos, Nicholas M. Gunn, Robert J. Sanchez, Jr., Leslie A. Field, Chen Ning
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Patent number: 8840578Abstract: An IOP control device for implantation in an eye of a patient is disclosed. The device includes a housing and a multilayer membrane. The housing is sized for implantation into the eye and includes an entrance port and an exit port. The membrane is anchored within the housing to form a flow control chamber on a first side and a fluid flow passageway on a second opposing side of the membrane. The chamber is arranged to contain a gas creating a chamber pressure, and the membrane is configured to affect flow through the passageway from the entrance port to the exit port by deflecting in response to changes in the chamber pressure. The membrane comprises a first layer having a higher permeability and a higher flexibility than the second layer, which is disposed adjacent the first layer and restricts the diffusion of gas in the chamber through the membrane.Type: GrantFiled: December 9, 2011Date of Patent: September 23, 2014Assignee: Alcon Research, Ltd.Inventors: Cesario P. Dos Santos, Michael L. Gelvin
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Publication number: 20140107557Abstract: A fluid flow-regulating system includes an electrolysis chamber configured to contain a liquid, and includes first and second electrodes disposed within the electrolysis chamber. A gap between opposing surfaces is sized to promote capillary action of a liquid in the electrolysis chamber that draws the liquid to at least one of the first and second electrodes in a manner allowing the flow-regulating system to be placed in multiple orientations and still have said one of the first and second electrodes wetted by capillary action.Type: ApplicationFiled: October 11, 2012Publication date: April 17, 2014Applicant: Alcon Research, Ltd.Inventors: Cesario P. Dos Santos, Nicholas M. Gunn, Leslie A. Field
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Publication number: 20140094736Abstract: An IOP control device for implantation in an eye of a patient is disclosed, including a housing with an entrance port and an exit port, a membrane anchored within the housing in a manner forming a flow control chamber on a first side of the membrane and a fluid flow passageway on a second opposing side of the membrane, and a position sensor system. The flow control chamber is arranged to contain a gas creating a flow control chamber pressure, and the membrane is configured to affect flow through the fluid flow passageway from the entrance port to the exit port by deflecting in response to changes in the flow control chamber pressure. The position sensor system includes a first conductive portion and a second conductive portion positioned to selectively contact the first conductive portion to indicate the position of the membrane relative to the fluid flow passageway.Type: ApplicationFiled: October 1, 2012Publication date: April 3, 2014Applicant: Alcon Research, Ltd.Inventor: Cesario P. Dos Santos
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Patent number: 8652085Abstract: A membrane actuator device includes a housing with an entrance port and an exit port connected by a fluid flow passageway. A gas generation chamber is disposed within the housing, the gas generation chamber comprising a first opening and a gas generating element. A membrane actuation chamber has a second opening and may be defined at least in part by a flexible membrane configured to deflect and affect fluid flow through the fluid flow passageway. A barrier spans the width of the first opening of the gas generation chamber and is disposed in a manner that reduces the likelihood that gas molecules will pass from the gas generation chamber to the membrane actuation chamber.Type: GrantFiled: July 2, 2012Date of Patent: February 18, 2014Assignee: Alcon Research, Ltd.Inventors: Michael L. Gelvin, Cesario P. Dos Santos
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Publication number: 20140046439Abstract: An implantable MEMS package for the treatment of an ocular condition is provided. The MEMS package includes an outer portion; an active portion attached to the outer portion, the active portion including a fluid regulating element having a moving element; and a fluidic channel at an interface of the outer portion and the active portion. The fluidic channel is formed in at least one of the outer and active portions and permits fluid communication from the MEMS package to the fluid regulating element. A method for forming a MEMS package as above is also provided. An ocular implant for treating glaucoma including an inlet tube for receiving aqueous humor; a MEMS package as above, coupled to the inlet tube; a control system to control the MEMS package; and an outlet tube for draining aqueous humor at a drainage location, is provided.Type: ApplicationFiled: August 13, 2012Publication date: February 13, 2014Inventors: Cesario P. Dos Santos, Nicholas M. Gunn, Robert J. Sanchez, JR., Leslie A. Field, Chen Ning
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Publication number: 20140039374Abstract: Disclosed herein are an apparatus, a system, and a method to monitor drainage from a first region of a patient to a second region. The apparatus comprises pressure sensors configured to measure the pressures of the first and second regions, a flow system to regulate drainage of fluid from the first region to the second region, a memory having a stored pressure drop across the flow system; and a processor associated with the memory and configured to compare the first pressure, the second pressure, and the stored pressure drop threshold and selectively generate control signals based on the comparisons. In some instances, the apparatus further comprises an alarm, and the processor is configured to generate the control signals that trip the alarm when a pressure drop exceeds the stored pressure drop threshold.Type: ApplicationFiled: August 3, 2012Publication date: February 6, 2014Inventors: Cesario P. Dos Santos, Andrew D. Johnson
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Publication number: 20140005587Abstract: A membrane actuator device includes a housing with an entrance port and an exit port connected by a fluid flow passageway. A gas generation chamber is disposed within the housing, the gas generation chamber comprising a first opening and a gas generating element. A membrane actuation chamber has a second opening and may be defined at least in part by a flexible membrane configured to deflect and affect fluid flow through the fluid flow passageway. A barrier spans the width of the first opening of the gas generation chamber and is disposed in a manner that reduces the likelihood that gas molecules will pass from the gas generation chamber to the membrane actuation chamber.Type: ApplicationFiled: July 2, 2012Publication date: January 2, 2014Inventors: Michael L. Gelvin, Cesario P. Dos Santos
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Publication number: 20130317412Abstract: An apparatus for treatment of a medical condition of a patient to provide drainage from a region of a patient to a drainage location includes a memory having a plurality of different selectable treatment algorithms stored therein for treating a medical condition, and may include a processor associated with the memory and configured to execute one of the different treatment algorithms. It also may include a flow system controllable by the processor to regulate drainage of fluid from a body portion having a medical condition, the flow system being controllable according to a selected algorithm of said different selectable treatment algorithms. In one aspect, the apparatus further comprises an implantable medical device for treating an ocular condition, and the processor is carried on the implantable medical device.Type: ApplicationFiled: May 23, 2012Publication date: November 28, 2013Inventors: Bruno Dacquay, Cesario P. Dos Santos, Casey J. Lind, Robert J. Sanchez, JR., Mathew J.A. Rickard
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Patent number: 8585664Abstract: A system for treating an ocular condition of a patient includes an electrically powered ocular implant sized for placement within an eye and includes a transmitter sized to be carried on or adjacent the head of the patient for disposal adjacent the eye. The transmitter includes a transmission antenna that emits an electromagnetic flux field sufficient to energize the ocular implant and includes a flux shunt disposed within the electromagnetic flux field. The transmission antenna may be disposed between the flux shunt and the implant.Type: GrantFiled: December 12, 2011Date of Patent: November 19, 2013Assignee: Alcon Research, LtdInventors: Cesario P. Dos Santos, Daniel C. Jenkins
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Publication number: 20130211313Abstract: An IOP control valve is disclosed. The IOP control valve comprises a corrugated membrane and a housing including a fluid inlet and a fluid outlet. The corrugated membrane is anchored within the housing to form a reference chamber on a first side of the corrugated membrane and a fluid flow channel on a second opposing side of the membrane. The reference chamber has a reference chamber pressure representative of atmospheric pressure. The fluid flow channel can selectively increase and decrease in size to permit fluid to flow from the fluid inlet to the fluid outlet. The corrugated membrane is configured to affect flow through the fluid flow channel from the fluid inlet to the fluid outlet by deflecting in response to pressure differentials of the reference chamber pressure and the fluid flow channel pressure acting on the opposing sides of the corrugated membrane.Type: ApplicationFiled: February 14, 2012Publication date: August 15, 2013Inventors: Cesario P. Dos Santos, Robert J. Sanchez, JR., Leslie A. Field
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Publication number: 20130150771Abstract: A system for treating an ocular condition of a patient includes an electrically powered ocular implant sized for placement within an eye and includes a transmitter sized to be carried on or adjacent the head of the patient for disposal adjacent the eye. The transmitter includes a transmission antenna that emits an electromagnetic flux field sufficient to energize the ocular implant and includes a flux shunt disposed within the electromagnetic flux field. The transmission antenna may be disposed between the flux shunt and the implant.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Inventors: Cesario P. Dos Santos, Daniel C. Jenkins
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Publication number: 20130150775Abstract: An IOP control device for implantation in an eye of a patient is disclosed. The device includes a housing and a multilayer membrane. The housing is sized for implantation into the eye and includes an entrance port and an exit port. The membrane is anchored within the housing to form a flow control chamber on a first side and a fluid flow passageway on a second opposing side of the membrane. The chamber is arranged to contain a gas creating a chamber pressure, and the membrane is configured to affect flow through the passageway from the entrance port to the exit port by deflecting in response to changes in the chamber pressure. The membrane comprises a first layer having a higher permeability and a higher flexibility than the second layer, which is disposed adjacent the first layer and restricts the diffusion of gas in the chamber through the membrane.Type: ApplicationFiled: December 9, 2011Publication date: June 13, 2013Inventors: Cesario P. Dos Santos, Michael L. Gelvin
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Publication number: 20080042861Abstract: A safety meter system for a battery-operated surgical hand piece is disclosed. The system has a controller, a sensor, and a display. The controller is configured to read a charge level from a battery. The sensor is configured to transmit a signal to the controller when the sensor is moved or grasped. The display provides an indication of a status of the battery. When the controller receives the signal from the sensor, the controller is energized, reads the status from the battery, and displays the status on the display. After a period of time after the status is displayed, the controller and the display are turned off.Type: ApplicationFiled: August 16, 2006Publication date: February 21, 2008Inventors: Bruno Dacquay, Cesario P. Dos Santos, Casey J. Lind, James J. Foster
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Publication number: 20080030170Abstract: A safety charging system for a battery-operated surgical hand includes a charging base, a battery pack, and control logic. The charging base has an RFID reader antenna disposed near a top surface of the charging base and charge circuitry for charging the battery. The battery pack has the battery used with the hand piece and an RFID tag antenna disposed near a bottom surface of the battery pack. The control logic determines if the battery should be charged based on a data point read by the RFID reader antenna.Type: ApplicationFiled: August 3, 2006Publication date: February 7, 2008Inventors: Bruno Dacquay, Cesario P. Dos Santos, Casey J. Lind, Paul R. Hallen