45 results about "Extended wear" patented technology

The present invention relates to a soft contact lens, and provides a contact lens which shows small and stable contact angle to water at its surface in water as well as in air, little deposition in wearing, high oxygen permeability, no adhesion of lens to a cornea and superior extended-wearing characteristics. The present invention provides a hydrogel soft contact lens which has contact angle at a lens surface in a range of 10-50° by the captive bubble method in water and 30-90° by the sessile drop method in air, oxygen permeability of not less than 30 and water content of not less than 5%, and also a hydrogel soft contact lens consisting of a polymer comprising a hydrophilic siloxanyl monomer shown by a specified general formula.

The invention provides a disposable sensor patch for non-invasive monitoring and recording of infrequent cardiac events. The patch is thin and flexible for comfortable wear on the person's chest for automatic analysis and recording of ECG. The patch is inexpensive and simple for self-administration. The patch incorporates a battery, ECG amplifier, and a processor for analyzing ECG waveform and recording events. A software algorithm searches for a cardiac abnormality. The patch is designed for continuous long-term wear exceeding 3 days for diagnostic monitoring and exceeding 14 days for event detection. In one embodiment a preformatted report is automatically generated by the patch for wireless transmission to a reporting device such as a generic printer or a wireless network system. The patch may also incorporate a marker switch to correlate recorded ECG data with the patient's perception of a cardiac event.

A nasal cannula apparatus is provided for use by patients desiring a comfortable arrangement. The nasal cannula apparatus is particularly suited for long-term oxygen users, for extended wear in both standing, resting and supine positions. The nasal cannula apparatus has headgear and retainers for holding the gas supply tubes, which are adjustable to allow fast and easy adjustment to size. The headgear and retainers allow the cannula tubes to be held in a position which prevents skin discomfort and irritation, and which promotes healing of such irritation, injuries and sores.

A modular canal hearing device having a speaker module placed in the bony region for extended wear while a main module is removably inserted in the cartilaginous region. The main module wirelessly activates the speaker module when placed in proximity thereto. The main module is removed daily or as needed for maintenance of the hearing device such as for battery replacement. The speaker module remains undisturbed in the bony region to avoid skin friction. The main module contains the microphone, electronics, battery and in the preferred embodiment an inductive coupling coil for inductively sending audio signals to the receiver module. The modular design allows for a highly miniaturized design that is easier to navigate in the ear canal for improved fit and sound fidelity at the eardrum while allowing easy maintenance of a removable module.

Systems and methods of manufacturing ophthalmic lenses, for example, soft, extended wear silicone hydrogel contact lenses, are provided. The systems generally include a housing having an illuminated chamber, a carrier, for example a tray, movable in the illuminated chamber from an inlet portion to an outlet portion of the housing, and the tray configured to carry a plurality of contact lens molds. Polymerizing light energy is provided, for example, by multiple fluorescent lamps, to the molds at an intensity effective to at least initiate polymerization of a monomer composition located in each of the molds. The light may be illuminated onto two opposing sides of each mold. In some cases, the intensity of the light provided to one side of the mold may be different to the light intensity provided to the opposing side of the mold. In addition, the system may include features that are effective to provide for an instantaneous start and an instantaneous end to the light induced cure of the monomer in the molds. The system may include DALI protocol based technology for controlling the fluorescent lamps.

An ultra miniature hearing device for extended wear entirely in the ear canal past the cartilaginous region is provided. The hearing device comprises a microphone and a speaker, each having a respective diaphragm. The speaker and microphone are placed parallel to each other in a single lateral assembly. The microphone and speaker can be arranged such that their diaphragms are orthogonal to one another so that cross coupling of vibrations is minimized, thus reducing internal feedback. Due to the parallel co-placement of the speaker and microphone in the single lateral assembly, the length of the device is substantially shorter than that of prior hearing aid devices. The hearing device is 12 mm or less in length to fit in the bony part of the ear canal for most individuals and is placed within approximately 3 mm from the eardrum.

A method and material for forming translucent wear resistant dental enamel and the dental enamel material formed which has an opacity less than 50 percent and a localized wear volume loss of less than 0.025 mm3. The dental enamel material is formed from a polymerizable matrix and a filler. The material for forming translucent wear resistant dental enamel having an opacity less than 50 percent, a localized wear volume loss of less than 0.025 mm3 and a localized extended wear volume loss of less than 0.04 mm3, comprises a polymerizable matrix forming liquid and inorganic filler particles. The liquid comprises polymerizable material having a first refractive index. The filler comprising a first plurality of particles having a second refractive index. The first plurality of particles being formed from a low and a high median particle size plurality of particles. The low median particle size plurality of particles having a median particle size between 0.1 and 1.0 micrometers. The high median particle size plurality of particles having a median particle size between 1 and 10 micrometers. The first refractive index being within 5 percent of said second refractive index. More preferably the low median particle size plurality of particles have a median particle size between 0.3 and 0.7 micrometers, and said high median particle size plurality of particles have a median particle size between 1 and 2 micrometers. More preferably the filler further comprises a second plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers.

A face mask for extended wear by a user including a customized, contoured facial mask face surface portion constructed and configured to cover and to contact a corresponding contoured surface area of a human face, preferably formed by 3-D printing methods and materials.

Disclosed are topical compositions, including methods of applying those compositions to absorb sweat and sebum from the skin, wherein the compositions comprise (A) fluid-absorbent solids having a Water Absorption Value of at least about 0.5 grams / gram; (B) an adhesive fluid; and (C) a liquid carrier; herein the composition has an Average Wear Index Value of at least about 60%. The topical compositions provide effective delivery and deposition of the fluid-absorbent solid onto the skin from an extended wear composition.

The present invention provides a diaphragm for use in pump applications in which at least a predetermined portion of such diaphragm is in contact with such outer piston which would tend to abrade such diaphragm. Such diaphragm is formed from at least one layer of a preselected flexible material. Such diaphragm comprises an outer bead like portion for securing the diaphragm to a pump housing. There is a annular flexure portion having a first end and a second end, such first end and such second end being generally flat and an arcuate shaped middle portion formed contiguously with the first end and the second end. Such first end is formed contiguously with the outer bead like portion. Such annular flexure portion has a substantially uniform first predetermined thickness. An enlarged bulbous portion is formed contiguously with the second end and extends around an inner periphery thereof. Such enlarged bulbous portion has a predetermined configuration. Such diaphragm has an enlarged section formed as a protrusion that extends outwardly from an outer surface of the generally flat second end. Such enlarged section is formed contiguously with the enlarged bulbous portion and extends around an outer periphery thereof. The enlarged section causes the second end to be thicker than such first predetermined thickness. Further, there is a generally flat center portion that is formed contiguously with the enlarged bulbous portion and extends around an inner periphery thereof.

The present invention generally relates to a method for making made-to-order (MTO) or customized silicone hydrogel lenses which have printed images on and / or below lens surfaces. A preferred method of the invention comprises printing and curing an ink on the molding surface of a mold for molding a single-side molded lens blank, producing the single-sided molded lens blank having a molded surface corresponding to one of the anterior and posterior surfaces of the lens to be produced and having an image embedded in the lens body and below lens surface, and directly lathing the lens blank on the side opposite to the molded surface to form the other lens surface. Colored silicone hydrogel lenses produced according to the invention will be useful as daily wear lenses and extended wear lenses. The lenses will allow alteration or enhancement of a patient's eye color.

The invention provides a canal hearing device and method in which the device is implemented with a mode of operation that provides acoustic transparency as well as a power-saving function, particularly useful to permit the user to wear the device in the ear canal during periods of sleep or inactivity without substantial loss of normal unaided response. The transparent mode has an in-situ acoustic transfer function that compensates for the insertion loss caused by the presence of a hearing device in the ear canal. While the device is in this transparent mode, its acoustic transfer function gives the user a perception of unaided hearing, as though the device were removed, when it is actually being worn continuously in the ear canal. Current drain of the device is significantly reduced as the transparent mode serves to shut off or reduce bias currents of at least one circuit element within the device circuitry. The invention is particularly useful in canal hearing devices adapted for extended wear in the ear canal for periods longer than one month without removal.

The present invention provides methods for making an antimicrobial medical device, preferably an antimicrobial ophthalmic device, more preferably an antimicrobial extended-wear contact lens, which contains silver nano-particles distributed uniformly therein. The antimicrobial medical device can exhibit antimicrobial activity over an extended period of time.

An improved rotating head that utilizes a box assembly that stores at least one locking element that that allows for movement of the locking balls within the box assembly such that a liner inserted into the box assembly biases the locking elements to a locked position to couple the box assembly and the outer barrel. An integrated wear surface of the present invention seals the bearing elements to extend the life of the rotating head and reduce downtime caused by necessary maintenance of the rotating head.

A transdermal drug delivery device is disclosed. Over an extended wear period, the device causes cumulative moderate irritation plus significant irritation of less than 5% and / or achieves a meaningful degree of detachment over a seven day period of less than 20%.

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally (in the midline) on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and, to a lesser extent, the QRS interval signals indicating ventricular activity in the ECG waveforms. Additionally, the monitor recorder includes an ECG sensing circuit that measures raw cutaneous electrical signals using a driven reference containing power supply noise and system noise to the reference lead, which is critical to preserving the characteristics of low amplitude cardiac action potentials, particularly P-waves.

A clamping method and apparatus including two halves of a clamp mated at a first end. The two halves are pivotally connected at a second end. The present invention is configured to permit the device to be repeatedly used without extended wear.

A clamping method and apparatus including two halves of a clamp mated at a first end. The two halves are pivotally connected at a second end. The present invention is configured to permit the device to be repeatedly used without extended wear.

The present invention pertains generally to the field of coolants and medical therapy. More particularly, the present invention relates to certain anti-nociceptive agents, such as [((1R,2S,5R)-2-isopropyl-5-methyl-cyclohexanecarbonyl)-amino]-acetic acid isopropyl ester, that are potent and long-acting and selectively cooling for non-keratinized epithelial tissues as compared to keratinized epithelial tissues, and are useful, for example, for the treatment of (e.g., the alleviation of symptoms of; the amelioration of) sensory discomfort of non-keratinized stratified epithelial (NKSE) tissue; and so for treatment of: sensory discomfort of an ocular surface, an eyelid, a margin of an eyelid, an anterior part of an eyeball, a conjunctiva, a lachrymal system, a pre-corneal film, or a cornea, a lining of the oral cavity, an internal portion of the lips, a pharyngeal surface, an esophageal surface, or an anogenital surface; eye discomfort, e.g., caused by extended wear of contact lenses, by eye strain and / or fatigue, by air pollutants, by excessive exposure to the sun, by conjunctivitis, by dry eye syndrome; sensory discomfort associated with oral mucositis; airway (e.g., larynx, trachea, and / or bronchi) tightness, discomfort in the airways (e.g., larynx, trachea, and / or bronchi), choking, cough, and / or dyspnea, e.g., associated with asthma and / or chronic obstructive pulmonary diseases (COPD).

A face mask for extended wear by a user including a customized, contoured facial mask portion constructed and configured to cover and matingly contact a corresponding contoured surface area of a human face, preferably formed by 3D printing methods and materials. The face mask includes strap attachments and at least one strap for securing the customized, contoured facial mask portion to the face.

A hearing aid kit includes a standard fit, completely-in-canal (CIC) hearing aid and a hearing aid tool set. The CIC hearing aid is for extended use and includes a core module inserted into a sleeve. The core module and the sleeve each include various features providing for a minimum overall size, ease of insertion, removal, and cleaning, and enhanced sound transmission. The tool set is configured to be stored and carried in a single piece and provides for adjustment and cleaning of the CIC hearing aid. Open ear fits and occlusive ear fits are possible using different sleeves.

An ultra miniature hearing device for extended wear entirely in the ear canal past the cartilaginous region is provided. The hearing device comprises a microphone and a speaker, each having a respective diaphragm. The speaker and microphone are placed parallel to each other in a single lateral assembly. The microphone and speaker can be arranged such that their diaphragms are orthogonal to one another so that cross coupling of vibrations is minimized, thus reducing internal feedback. Due to the parallel co-placement of the speaker and microphone in the single lateral assembly, the length of the device is substantially shorter than that of prior hearing aid devices. The hearing device is 12 mm or less in length to fit in the bony part of the ear canal for most individuals and is placed within approximately 3 mm from the eardrum.

An improved rotating head that utilizes a box assembly that stores at least one locking element that allows for movement of the locking balls within the box assembly such that a liner inserted into the box assembly biases the locking elements to a locked position to couple the box assembly and the outer barrel. An integrated wear surface of the present invention seals the bearing elements to extend the life of the rotating head and reduce downtime caused by necessary maintenance of the rotating head.

A cementing plug having a universal construction and improved wiping and extended wear characteristics. The cementing plug has a plug subassembly with a body member and an elastomeric jacket on the body member. The body member defines a central opening therethrough with a shoulder therein. To configure the plug as a bottom cementing plug, a shearable insert is positioned on the shoulder, and to configure the plug as a top cementing plug, a non-shearable insert is positioned on the shoulder. The shearable insert is one of a plurality of such inserts designed to shear at correspondingly different shear pressures. In a first embodiment, the shearable insert is a substantially flat disk having a uniform thickness, and in a second embodiment, the shearable insert has an outer ring portion and a relatively thin inner domed portion. Thus, a bottom plug may be pumped down a well casing with cement and a top plug thereabove so that when the bottom plug lands at the bottom of the casing, the shearable insert will shear at the predetermined pressure. The jacket has one or more wiper cups which have a conical surface extending at an acute angle with respect to a longitudinal axis of the plug, thereby providing a substantially large contact area in the well casing to improve wiping efficiency and extend life.