Abstract:
Intraocular lenses with a base optical power and a customized add power. The add power is customized based on at least one of ocular biometry of an individual, position of the intraocular lens in the eye and a preferred reading distance.
Abstract:
Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs). Exemplary ophthalmic lenses can include a plurality of echelettes arranged around the optical axis, having a profile in r-squared space. The echelettes may be non-repeating over the optical zone.
Abstract:
Instrument couplings and related methods are disclosed herein, e.g., for coupling a surgical instrument to a navigation array or other component. The coupling can reduce or eliminate movement between the instrument and the navigation array, improving navigation precision. The coupling can be quick and easy to use, reducing or eliminating the need for extra steps or additional tools to attach or detach the instrument from the coupling. In some embodiments, the single step of inserting an instrument into the coupling can automatically lock the instrument within the coupling in a toggle-free manner.
Abstract:
Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (lOLs). Exemplary diffractive intraocular implants (lOLs) can include a diffractive profile (100) having multiple diffractive zones. The diffractive zones can include a central zone (101) that includes one or more echelettes (102) and a peripheral zone (103) beyond the central zone having one or more peripheral echelettes (104). The central diffractive zone can work in a higher diffractive order than a remainder of the diffractive profile. The combination of the central and peripheral zones and an optional intermediate zone provides a longer depth of focus than a diffractive profile defined just by a peripheral and/or optional intermediate zone.
Abstract:
A method and apparatus for detecting voice activity in an audio signal by taking the ratio of the entropy and the energy band ratio of the power spectrum of the audio signal. The signal is classified as containing voice episodes if the voice activity ratio is above a predefined threshold. The method may be applied to any noisy signal in which there is uncertainty about the presence of voice activity and in real-time analysis of sound, preceding further analysis of the sound signal.
Abstract:
An electrochemical-based analytical test strip for the determination of an analyte (such as glucose) in a bodily fluid sample (for example, a whole blood sample) and/or a characteristic of the bodily fluid sample (for example, hematocrit) includes a first sample-receiving chamber with first and second sample-application openings, and first and second electrodes. The first and second electrodes are disposed in the first sample-receiving chamber between the first and second sample-application openings. The electrochemical-based analytical test strip also includes a second sample-receiving chamber and a plurality of electrodes disposed in the second sample-receiving chamber. In addition, the second sample-receiving chamber intersects the first sample-receiving chamber between the first and second electrodes, thereby defining a chamber intersection.
Abstract:
Described and illustrated herein is an exemplary lancing device. The exemplary lancing device comprises: a first housing having spaced apart proximal and distal ends disposed along a longitudinal axis; a chassis disposed in the first housing in a fixed relationship with the first housing; a movable member disposed in the chassis and configured for movement along the longitudinal axis and in the first housing; a lancet coupled to the movable member; and a lancet depth adjustment member retained by both the first and chassis so that the lancet depth adjustment member is rotatable relative to both housings to provide for a plurality of stop surfaces to the movable member. Other embodiments and methods are also described.
Abstract:
An injection device (110) comprises a locking mechanism (170) between a syringe carrier (127) and a drive mechanism (129) of the injection device. The drive is formed in such a^ way to inhibit movement of the syringe carrier (127) and syringe (114) held by the syringe carrier (127) towards an exit aperture (128) of the injection device when the drive is not itself being forced into a direction towards the exit aperture. This assists in preventing damage to the syringe prior to actuation of the injection device.
Abstract:
A method for determining an analyte concentration in blood is described that reduces the effects of hematocrit using a test strip attached to a test meter. The test strip includes a working electrode and a reference electrode. The test meter applies a test voltage between the working electrode and the reference electrode. After a user applies a blood sample containing an analyte onto the test strip, the test meter measures a plurality of test currents for a test time interval. The test meter thereafter calculates an analyte correlation value. An accurate glucose concentration may be determined based on the analyte correlation value.
Abstract:
An injection device (110) is described having a housing (112) and a cap (130). The injection device (110) houses a syringe (114) having a needle which is sealed by a boot (118). The cap (130) is arranged so that the boot (118) can be connected to the cap (130) whilst exerting a minimal force on the syringe, but cannot be removed from the cap (130) without applying a significantly greater force to the syringe. The housing (112) and cap (130) are arranged so that upon removal of the cap (130) from the housing (112), the boot (118) is removed from the syringe (114).