The present is directed to systems for ex vivo testing performance of a hemostatic or sealing product attached to an animal organ and fully covering a cored channel in said organ, comprising: a pressure sensor positioned proximate to said hemostatic or sealing product in said cored channel; a monitoring or recording device configured to receive pressure readings from said pressure sensor; and a pressurized fluid source connected to said cored channel and configured to supply said pressurized fluid into said cored channel under constant or variable pressure. The present invention is also directed to methods of use for such systems.

An improved medical device reduces the loss of longitudinal length during expansion of a stent-graft from a compressed state to an expanded state. For example, the stent-graft is placed over a cover that provides resistance to expansion of the balloon during inflation, which reduces longitudinal compressing forces exerted on the stent-graft.

A method for grouping prosthetic valve leaflets of an aggregate of prosthetic valve leaflets is provided. Using a computer processor, for each leaflet of the aggregate, in response to an image parameter of the leaflet, a leaflet-flexibility value is derived. A group size value is provided to the processor. Using the processor, at least some of the leaflets of the aggregate are designated into leaflet groups, based on similarity between the respective leaflet-flexibility value of each leaflet of the aggregate. Each of the leaflet groups includes a number of leaflets equal to the group size value. Using the processor, an indication of the designated leaflet groups is outputted. Other embodiments are also described.

A system and method for an improved connective tissue repair option that reduces disadvantages of conventional fixation options. Biologic press fit fixation of a connective tissue unit may include in situ expansion of a pre-compressed connective tissue unit within a prepared bone tunnel of a portion of bone. An external opening accessing a cavity of the prepared bone tunnel may be smaller than that of the cavity such that expansion of the installed/compressed connective tissue unit increases lateral fixation forces exerted by the expanding/decompressing compressed connective tissue unit within the bone tunnel.

An ophthalmic device includes an enclosure that is compatible for wearing in or on an eye. An adjustable lens is disposed within the enclosure. Driver circuitry is disposed within the enclosure and coupled to drive the adjustable lens and change its optical power. Built-in-self-test (BIST) circuitry is disposed within the enclosure and coupled to the adjustable lens. The BIST circuitry includes an impedance measurement circuit coupled to selectively measure an impedance of the adjustable lens. A controller is disposed within the enclosure and includes BIST control logic that measures the impedance of the adjustable lens with the impedance measurement circuit to determine a health status of the adjustable lens.

This invention provides a method for determining breast implant geometric properties, engineering stresses, engineering strains and engineering moduli; directly and quickly, using a load frame apparatus. More generally the invention provides a method for determining geometric properties and engineering mechanical properties of any elastomeric device, using a load frame apparatus. Engineering stress and engineering strain properties of breast implants are critical to their safety and durability. The geometric properties of breast implants undergoing compression also relates to the shape stability of breast implants, which may also be related to clinical outcomes such as capsular contracture and other untoward outcomes involving a breast capsule, such as Anaplastic Large Cell Lymphoma (ALCL), double capsule formation, seroma formation and associated breast implant illness (BII).

An implantable medical device obtained by means of two-photon laser polymerisation of a resin to form a three-dimensional matrix, wherein: said three-dimensional matrix comprises a number of levels distributed in height; and said three-dimensional matrix comprises reference means designed to uniquely identify the height of each level from a pre-set reference, by means of a multi-photon fluorescence-excitation microscope; said implantable medical device being characterised in that said reference means comprise a solid having a cross section that varies with height.

Systems and methods for conducting contact-free thickness and refractive-index measurements of transparent objects, such as intraocular lenses using a dual confocal microscopy system are disclosed.

An implantable frame comprises a plurality of corner structures configured to decrease pressure to the vessel wall and define pulsatility enhancing windows of the implantable frame. The corner structures may comprise plurality of neighboring longitudinal struts that extend in a longitudinal direction of the blood vessel when placed to form the vessel wall to a substantially polygonal cross-section and distribute pressure loading of the corner structure among the plurality of neighboring longitudinal struts to improve biocompatibility. The corner structures also allow increased forming of the vessel wall and can provide stretching of the vessel wall to enhance pulsatility of the vessel wall.

A method for determining a sufficient stent removal force includes providing a balloon fastened to a shaft with a stent securely clamped to the balloon. In order to move or remove the balloon from the stent, a stent removal force has to act on the balloon in the axial direction. The stent, which surrounds the balloon, is clamped between first and second holding jaws with a predefined contact pressure perpendicularly to the axial direction. A predefined, desired stent removal force is then exerted on the balloon via the shaft in the axial direction, at which the balloon should not be removed from the stent. If the balloon moves axially relative to the stent, the force is considered to be too low and the shaft-balloon-stent assembly is discarded as a reject. If the stent position remains constant, the stent removal force is considered to be sufficient.