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826results about "Tonometers" patented technology
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Intraocular physiological sensor
An implantable intraocular physiological sensor for measuring intraocular pressure, glucose concentration in the aqueous humor, and other physiological characteristics. The implantable intraocular physiological sensor may be at least partially powered by a fuel cell, such as an electrochemical glucose fuel cell. The implantable intraocular physiological sensor may wirelessly transmit measurements to an external device. In addition, the implantable intraocular physiological sensor may incorporate aqueous drainage and / or drug delivery features.
Owner:GLAUKOS CORP
Implantable ocular pump to reduce intraocular pressure
A trabecular pump is implantable in the eye to reduce intraocular pressure. The pump drains aqueous humor from the anterior chamber into outflow pathways, such as Schlemm's canal. A feedback system includes the intraocular pump and a pressure sensor in communication with the pump, for regulating intraocular pressure.
Owner:GLAUKOS CORP
Method for monitoring intraocular pressure using a passive intraocular pressure sensor and patient worn monitoring recorder
A device for passively measuring intraocular pressure of a patient including an in vivo sensor and an instrument external to the patient for remotely energizing the sensor, thereby permitting the instrument to determine the intraocular pressure. The device directly and continuously measures the intraocular pressure of a patient. The in vivo sensor in the intraocular pressure monitor includes a capacitive pressure sensor and an inductive component. An instrument, external to the patient, measures the pressure, provides readout of the pressure values and determines the intraocular pressure.
Owner:THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE
Implantable continuous intraocular pressure sensor
InactiveUS6939299B1Worn safely and comfortably and convenientlyPerson identificationTonometersIntraocular pressureSpiral inductor
An implantable miniaturized pressure sensor integrates a capacitor and an inductor in one small chip, forming a resonant LC circuit having a Q value of 10 or greater. The capacitor has an upper capacitor plate and a lower capacitor plate disposed proximate thereof. The upper and lower capacitor plates are connected to one or more spiral inductor coils. The sensor is micromachined from silicon to form a thin and robust membrane disposed on top of the upper capacitor plate. The sensor is hermetically sealed and the membrane is deflected relative to the upper capacitor plate by an external fluid, gas, or mechanical pressure. The resonant frequency of the sensor can be remotely monitored and continuously measured with an external detector pick up coil disposed proximate the sensor. The sensor can be smaller than 2×2×0.5 mm and is particularly useful for intraocular applications.
Owner:IOSENSOR
Implant with pressure sensor for glaucoma treatment
InactiveUS6981958B1Reduce morbidityAvoiding hypotonyEye surgeryInfusion needlesSchlemm's canalIntraocular pressure
Owner:GLAUKOS CORP
Telemetry method and apparatus using magnetically-driven MEMS resonant structure
InactiveUS20070236213A1High quality factorImprove reliabilityMagnetic property measurementsDiagnostic recording/measuringIntraocular pressurePressure sense
A telemetry method and apparatus using pressure sensing elements remotely located from associated pick-up, and processing units for the sensing and monitoring of pressure within an environment. This includes remote pressure sensing apparatus incorporating a magnetically-driven resonator being hermetically-sealed within an encapsulating shell or diaphragm and associated new method of sensing pressure. The resonant structure of the magnetically-driven resonator is suitable for measuring quantities convertible to changes in mechanical stress or mass. The resonant structure can be integrated into pressure sensors, adsorbed mass sensors, strain sensors, and the like. The apparatus and method provide information by utilizing, or listening for, the residence frequency of the oscillating resonator. The resonant structure listening frequencies of greatest interest are those at the mechanical structure's fundamental or harmonic resonant frequency. The apparatus is operable within a wide range of environments for remote one-time, random, periodic, or continuous / on-going monitoring of a particular fluid environment. Applications include biomedical applications such as measuring intraocular pressure, blood pressure, and intracranial pressure sensing.
Owner:LAUNCHPOINT TECH
Method and apparatus for treatment of glaucoma
InactiveUS6699211B2Slowing and stopping progressionLower eye pressureEar treatmentEye surgeryVeinAqueous humor
A new and improved method and apparatus for treating glaucoma is described herein. A device for directing aqueous humor from an anterior chamber to Schlemm's canal comprises a seton, and may further comprise a pump operatively connected to the seton. The seton conducts aqueous directly from the anterior chamber to Schlemm's canal so that it can drain directly into the aqueous veins leading to the venous circulation. The seton for lowering intraocular pressure of an associated eye comprises a first tube adapted to be inserted into an associated anterior chamber of the eye; and, two wing tubes extending from the first tube. The two wing tubes are adapted to be inserted into Schlemm's canal. The two wing tubes and the first tube form a substantially continuous passageway, such that aqueous humor flows from the anterior chamber into Schlemm's canal through the substantially continuous passageway.
Owner:SAVAGE JAMES A
Glaucoma implant with extending members
InactiveUS20050192527A1Avoiding hypotonyEliminate riskEye surgeryIntravenous devicesSchlemm's canalIntraocular pressure
A trabecular shunt and methods for treating glaucoma are disclosed. One of the methods comprises transporting fluid from the anterior chamber of an eye to Schlemm's canal through an implant, the implant extending between the anterior chamber and Schlemm's canal; sensing an intraocular pressure using a sensor incorporated into the implant; and transmitting a signal indicative of the sensed pressure to an external receiver.
Owner:GLAUKOS CORP
Noninvasive measurement of chemical substances
InactiveUS7041063B2High densityEarly diagnosisOrganic active ingredientsHeart defibrillatorsConjunctivaInfrared
Utilization of a contact device placed on the eye in order to detect physical and chemical parameters of the body as well as the non-invasive delivery of compounds according to these physical and chemical parameters, with signals being transmitted continuously as electromagnetic waves, radio waves, infrared and the like. One of the parameters to be detected includes non-invasive blood analysis utilizing chemical changes and chemical products that are found in the conjunctiva and in the tear film. A transensor mounted in the contact device laying on the cornea or the surface of the eye is capable of evaluating and measuring physical and chemical parameters in the eye including non-invasive blood analysis. The system utilizes eye lid motion and / or closure of the eye lid to activate a microminiature radio frequency sensitive transensor mounted in the contact device. The signal can be communicated by wires or radio telemetered to an externally placed receiver. The signal can then be processed, analyzed and stored. Several parameters can be detected including a complete non-invasive analysis of blood components, measurement of systemic and ocular blood flow, measurement of heart rate and respiratory rate, tracking operations, detection of ovulation, detection of radiation and drug effects, diagnosis of ocular and systemic disorders and the like.
Owner:GEELUX HLDG LTD
Biodegradable glaucoma implant
InactiveUS20050288619A1Reduce morbidityAvoiding hypotonyEye surgeryIntravenous devicesSchlemm's canalIntraocular pressure
A trabecular shunt and methods for treating glaucoma are disclosed. One of the methods comprises transporting fluid from the anterior chamber of an eye to Schlemm's canal through an implant, the implant extending between the anterior chamber and Schlemm's canal; sensing an intraocular pressure using a sensor incorporated into the implant; and transmitting a signal indicative of the sensed pressure to an external receiver.
Owner:GHARIB MORTEZA +2
Shunt device and method for treating glaucoma
InactiveUS20050119601A9Expand exportsFacilitates the normal physiologic pathwayEye surgeryMedical devicesShunt DeviceAqueous humor
The present invention provides a shunt for the flow of aqueous humor from the anterior chamber of the eye to Schlemm's canal. The device comprises at least one lumen and optionally has at least one anchor extending from the proximal portion within the anterior chamber to assist in placement and anchoring of the device in the correct anatomic position.
Owner:GMP VISION SOLUTIONS
Optically powered and optically data-transmitting wireless intraocular pressure sensor device
An implantable intraocular pressure sensor device for detecting excessive intraocular pressure above a predetermined threshold pressure is disclosed. The device includes a pressure switch that is sized and configured to be placed in an eye, wherein said pressure switch is activated when the intraocular pressure is higher than the predetermined threshold pressure. The device is optically powered and transmits data wirelessly using optical energy. In one embodiment, the pressure sensor device is a micro electromechanical system.
Owner:CALIFORNIA INST OF TECH
Method and apparatus for treatment of glaucoma
InactiveUS20020026200A1Slowing and stopping progressionLower eye pressureEar treatmentEye surgeryVeinAqueous humor
A new and improved method and apparatus for treating glaucoma is described herein. A device for directing aqueous humor from an anterior chamber to Schlemm's canal comprises a seton, and may further comprise a pump operatively connected to the seton. The seton conducts aqueous directly from the anterior chamber to Schlemm's canal so that it can drain directly into the aqueous veins leading to the venous circulation. The seton for lowering intraocular pressure of an associated eye comprises a first tube adapted to be inserted into an associated anterior chamber of the eye; and, two wing tubes extending from the first tube. The two wing tubes are adapted to be inserted into Schlemm's canal. The two wing tubes and the first tube form a substantially continuous passageway, such that aqueous humor flows from the anterior chamber into Schlemm's canal through the substantially continuous passageway.
Owner:SAVAGE JAMES A
Intraocular pressure measurement system including a sensor mounted in a contact lens
An apparatus (180) for measuring intraocular pressure (IOP) comprises a contact lens (40) including an inner surface (42) contoured to a surface portion (34) of an eye (36) and a sensor (10) disposed in the contact lens. The sensor (10) comprises a contact surface (14) for making contact with the surface portion (34) of the eye (36). The contact surface (14) includes an outer non-compliant region (16) and an inner compliant region (18) fabricated as an impedance element that varies in impedance as the inner compliant region changes shape. The sensor (10) further comprises a region of conductive material (38) electrically coupled to the impedance element of the compliant region (18) and responsive to an external signal for energizing the impedance element so that the IOP may be determined.
Owner:THE CLEVELAND CLINIC FOUND
Contact lens for collecting tears and detecting analytes for determining health status, ovulation detection, and diabetes screening
InactiveUS20070016074A1Increase oxygenationIncreased riskOrganic active ingredientsHeart defibrillatorsConfocalChemical products
Owner:GEELUX HLDG LTD
Implantable microscale pressure sensor system for pressure monitoring and management
A MEMS chip sensor (10, 20, 30, 40, 50, 60, 70) based upon detection of an induced inductance in the sensor is described. The sensor is used in an environment for detection of fluid pressures. The method and system is particularly used in animals, including humans, to sense pressure changes, particularly pressure in the eyeball.
Owner:BOARD OF TRUSTEES OPERATING MICHIGAN STATE UNIV
Method for measuring the degree of edema and apparatus using the same
InactiveUS6714813B2Measuring the degree of edema with accuracyDevices for locating reflex pointsDiagnostic recording/measuringPower flowEngineering
Owner:TANITA CORP
Display method and system for surgical procedures
ActiveUS20070282195A1Facilitate surgical procedureImprove performanceElectrocardiographySurgical navigation systemsDisplay deviceHuman–computer interaction
A method and system includes multiple displays that can be separately controlled by users who are part of a surgical team. The first display will include information to assist a first user through the steps of a surgical procedure and the second display will assist a second user though the steps taken by the second user to perform the surgical procedure.
Owner:STRYKER EURO OPERATIONS HLDG LLC
Systems and Methods for Monitoring and Controlling Internal Pressure of an Eye or Body Part
ActiveUS20090275924A1Avoiding undesirable loss of pressureAvoid cloggingEye surgeryPharmaceutical delivery mechanismInternal pressureBiomedical engineering
Systems and methods for automatically monitoring and controlling pressure in a body part are disclosed. The systems include an implantable tube with one open end of the tube implanted in the body part, an implantable valve coupled with the tube having at least one open state and a closed state, an implantable sensor for measuring pressure, and an implantable control device coupled with the sensor and the valve. The control device switches the valve between the at least one open state and the closed state, based on pressure information received from the sensor. When the valve is in the at least one open state, the tube drains fluids from the body part due to a difference of pressure between the open ends of the tube. Methods for using the systems to administer drugs and monitor and control fluid pressures in various biological systems are also disclosed.
Owner:EASTERN VIRGINIA MEDICAL SCHOOL
Intraocular pressure sensor and method of use
A method for measuring an intraocular pressure within an eye has several steps. An intraocular pressure sensor that is adapted to be implanted intrasclerally is provided. An incision is cut through a scleral layer of the eye. The scleral layer is lifted with a grasping tool. The intraocular pressure sensor is inserted under the scleral layer, and the incision of the scleral layer is closed.
Owner:MONTEGRANDE VALENTINO +1
Inflatable medical interfaces and other medcal devices, systems, and methods
An inflatable mask with two ocular cavities can seal against a user's face by forming an air-tight seal around the periphery of the user's eye socket. The sealed air-tight ocular cavity can be pressurized to take ocular measurements. The mask can conform to the contours of a user's face by inflating or deflating the mask. In addition, the distance between the user and a medical device (e.g. an optical coherence tomography instrument) can be adjusted by inflating or deflating the mask. Also disclosed herein is an electronic encounter portal and an automated eye examination. Other embodiments are also described.
Owner:ENVISION DIAGNOSTICS
Shunt device and method for treating glaucoma
InactiveUS20050038334A1Easy to optimizeExpand exportsOrganic active ingredientsEye surgeryShunt DeviceAqueous humor
The present invention provides a shunt for the flow of aqueous humor from the anterior chamber of the eye to Schlemm's canal. The device comprises at least one lumen and optionally has at least one anchor extending from the proximal portion within the anterior chamber to assist in placement and anchoring of the device in the correct anatomic position.
Owner:GLAUKOS CORP
Sensor contact lens, system for the non-invasive monitoring of intraocular pressure and method for measuring same
The invention is characterized in that it comprises a truncated contact lens (1), whose truncation plane is parallel to the base of said contact lens, and a polymeric nanocomposite material (2) centrally disposed and attached to the perimeter of the truncated area, said material being sensitive to pressure changes, biocompatible and transparent, and including contact electrodes (3), and in that it also comprises means for transmitting IOP measurement data to an external system. The invention also relates to a method for measuring IOP using said lens comprising: i) placing said sensor contact lens in the eye to determine its intraocular pressure; ii) providing a direct current value between external electrodes; iii) ΔV measurement between internal electrodes; and iv) identifying whether the value obtained is outside the linear response, expressed in changes of resistivity, of the polymeric nanocomposite material. The invention also relates to a telemetry system comprising said lens.
Owner:CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC) +4
Critical alignment of fluidics cassetts
ActiveUS20080114311A1Facilitate alignment and mountingImprove joint forceEye surgeryFlexible member pumpsFluidicsCoupling
Devices, systems, and methods interface a cassette with an eye treatment system console to provide coupling between the console and an eye treatment probe. The console may receive the cassette using a driven axial translation linkage that inhibits rotation of the cassette. The cassette may facilitate accurately positioning of a pressure sensor relative to a the console by allowing sliding movement between the sensor and a cassette body. Multiple peristaltic drives may be mounted to the console so that their rotors rotate about a common axis. An integrated mount structure may support and / or position components of the console which will interface with cassette, and an axially compressible vacuum connector of the console seal to a tapered vacuum coupler of the cassette.
Owner:JOHNSON & JOHNSON SURGICAL VISION INC
Implantable mechanical pressure sensor and method of manufacturing the same
InactiveUS7252006B2Fluid pressure measurement using elastically-deformable gaugesFluid pressure measurement by electric/magnetic elementsIn planeGlaucoma
A biocompatible, mechanical, micromachined pressure sensor and methods of manufacturing such a pressure sensor are provided. The pressure sensor of the current invention includes a high-aspect-ratio curved-tube structure fabricated through a one-layer parylene process. The pressure sensor of the current invention requires zero power consumption and indicates the pressure variation by changes of the in situ in-plane motion of the sensor, which can be gauged externally by a direct and convenient optical observation. In one embodiment, the pressure sensor of the current invention has been shown to work as an IOP sensor for eye implantation where the intraocular in-plane motion of the sensor can be recorded from outside of the eye, such that the intraocular pressure in glaucoma patients can be constantly monitored.
Owner:CALIFORNIA INST OF TECH
Implant with intraocular pressure sensor for glaucoma treatment
InactiveUS7678065B2Faster and safe and less-expensiveReduce morbidityEye implantsEye surgeryIntraocular pressureTreatment glaucoma
The invention discloses a trabecular stent and methods for treating glaucoma. The stent may incorporate an intraocular pressure sensor comprising a compressible element that is implanted inside an anterior chamber of an eye, wherein at least one external dimension of the element correlates with intraocular pressure. In some embodiments, the sensor may be coupled to the stent. Also disclosed are methods of delivery of the stent and the sensor to the eye.
Owner:GLAUKOS CORP
Device for monitoring intraocular pressure
ActiveUS20130184554A1Improve accuracyImprove consistencyTonometersOptical partsIntraocular pressurePressure sensor
Disclosed is a device adapted to measure intraocular pressure comprising: a corneal contact lens having a pressure sensor mounted in a recess or cavity in the contact lens, and wherein the contact lens has a back surface which is formed so as to protrude in a desired portion beyond the profile of the adjacent part of the lens and thus to press against the cornea, which protruding portion experiences a reactive deformation which is detected directly or indirectly by the pressure sensor.
Owner:UNIVERSITY OF DUNDEE +1
Glaucoma Treatment Devices and Methods
InactiveUS20070156079A1Increased intraocular pressureReduce resistanceMaterial nanotechnologyEye surgerySurgeryTreatment glaucoma
This document provides methods and materials related to treating glaucoma. For example, devices that can be implanted into a human's eye to treat glaucoma, methods for treating glaucoma, compositions for reducing polypeptide clogging of implanted devices, and methods for making devices for treating glaucoma are provided.
Owner:BG IMPLANT
Intraocular pressure measurement system including a sensor mounted in a contact lens
Owner:THE CLEVELAND CLINIC FOUND
Intraocular shunt device and method
A shunt having a conduit sized to fit within Schlemm's canal, the conduit having an inlet intermediate a proximal end and a distal end and a Venturi feature arranged within the conduit so as to control flow from the inlet into the conduit. The shunt may include a pressure sensor capable of measuring pressure within an eye, coupled to the Venturi feature, the Venturi feature being configured to control flow from the inlet into the conduit in response to a pressure measurement from the sensor. Also, the pressure sensor may be coupled to a pump that is adapted to control flow from the inlet into the conduit in response to a pressure measurement from the sensor.
Owner:BAUSCH & LOMB INC
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