162 results about "Biomedical equipment" patented technology

A biomedical apparatus is disclosed including an implantable biomedical device for providing biomedical assistance to the body structure and a device controller for regulating the operation of the biomedical device. A sonomicrometer arrangement is provided, in contact with the body structure and in communication with the device controller. The sonomicrometer arrangement ultrasonically measures at least one physical parameter of the body structure and provides feedback information to the device controller. The device controller then regulates the operation of the biomedical device in response to the feedback information.

This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

Bioscaffoldings formed of hydrogels that are crosslinked in situ in an infarcted region of the heart (myocardium) by a Michael's addition reaction or by a disulfide bond formed by an oxidative process are described. Each of the bioscaffoldings described includes hyaluronan as one of the hydrogel components and the other component is selected from collagen, collagen-laminin, poly-l-lysine, and fibrin. The bioscaffolding may further include an alginate component. The bioscaffoldings may have biofunctional groups such as angiogenic factors and stem cell homing factors bound to the collagen, collagen-laminin, poly-l-lysine, or fibrinogen hydrogel component. In particular, the biofunctional groups may be PR11, PR39, VEGF, bFGF, a polyarginine/DNA plasmid complex, or a DNA/polyethyleneimine (PEI) complex. Additionally, the hydrogel components may be injected into the infarct region along with stem cells and microspheres containing stem cell homing factors. The bioscaffolding may be formed on a stent or a cardiac medical device.

A system providing an inductive power and data link between an external transmitter and miniature internal receiver is presented. The system is suited to applications where the receiver must be of a small size and the system must consume very little power, such as an implanted biomedical device. The system is also compatible with systems where bi-directional communications are required. The novel transmitter and receiver form an improved forward data telemetry system. The transmitter consists of a Class-E converter with its optimum operating frequency being synchronously, instantaneously and efficiently altered in accordance with the data to be transmitted, thereby producing an FSK modulated magnetic field of substantially constant amplitude. The constant amplitude output allows for the continuous, data-independent transfer of power to the miniature receiver and its associated electronics. The present invention also represents an improvement over the high efficiency Class-E converters previously patented by the inventors. The receiver consists of a coil and an integrated rectifying system to recover operating power from the incident magnetic field, as well as an FSK demodulator whose operation is based on the multiphase comparison of charging times of integrated capacitors. The described FSK demodulator approach removes deleterious effects resulting from low-frequency changes in the transmitter frequency, and eliminates time distortion artifacts generated by circuit imbalances and asymmetries in the power recovery process. The combination of the transmitter and receiver improvements yields a reliable data transfer system unaffected by circuit imbalances and incidental variations in the amplitude and frequency of the magnetic field.

The present invention provides a glucokinase protein in which the catalytic activity has been disabled in order to enable its use as a glucose sensor. The catalytically disabled glucokinase protein can be used as the glucose sensor in hand-held glucose monitors and in implantable glucose monitoring devices. The glucose sensor can also be incorporated into biomedical devices for the continuous monitoring of glucose and administration of insulin.

Biomedical devices are provided herein which are formed from a polymerization product of a monomeric mixture comprising one or more monomers comprising one or more trifluorovinyl groups, e.g., a perfluorocyclobutane containing polymer.

A probabilistic digital signal processor using data from multiple instruments is described. In one example, a digital signal processor is integrated into a biomedical device. The processor is configured to: use a dynamic state-space model configured with a physiological model of a body system to provide a prior probability distribution function; receive sensor data input from at least two data sources; and iteratively use a probabilistic updater to integrate the sensor data as a fused data set and generate a posterior probability distribution function using all of: (1) the fused data set; (2) an application of Bayesian probability; and (3) the prior probability distribution function. The processor further generates an output of a biomedical state using the posterior probability function.

A biomedical device assembly, such as a stent, for the targeted treatment of a tissue, such as the inhibition of restentosis. The stent is coated with an antigen, which is an example of a lock. The antigen can be bound by a labelled antibody, which is an example of a key and an effector. The antibody is preferably labelled with a radioactive source. According to one method of preparing the biomedical device assembly, after the stent has been placed in the blood vessel of the subject, the antibody is injected. The antibody then binds to the antigen on the stent, thereby localizing the radioactive source to the area to be treated, for example for restenosis. Other biomedical devices, such as a coil, an artificial valve or a vascular graft, could also be used in the place of the stent. The biomedical device could be placed in another biological passageway, such as the gastrointestinal tract, an airway or the genitourinary tract.

The present invention relates to a biomedical device with near field communication (NFC) function and a method thereof for user identification, biomedical data measurement, biomedical data upload/download, biomedical data management, and remote medical care, the biomedical device comprises: a measuring unit, a environment sensing unit, a data transforming unit, a micro control unit, a memory unit, a smart card unit, a display unit, and a near field communication unit, wherein by way of near field communication unit, the biomedical device is able to communicate with a portable device and a user individual information and the relative biomedical data thereof can be transmitted to the portable device, such that multi men are allowed for using the identical biomedical device and the situation about misrecording and misjudging of data would not be occurred; moreover, through the portable device, the biomedical data can be uploaded to a cloud server and a user history data and an optimized setting data for personalization biomedical device can be downloaded from the cloud server.

Intraocular lenses and methods producing the same are provided. The intraocular lens includes an optic and a haptic that are integrally formed together. The haptic has a polyimide coating. The polyimide coating promotes fibrosis in the surrounding eye tissue to enhance the anchoring of the IOL after it is implanted in an eye.

The invention relates to a method for manufacturing a titanium alloy having superelastic properties and/or shape memory for biomedical use, which comprises the steps of: preparing an ingot by melting the various metals that form the desired alloy in a vacuum; optionally homogenising the ingot in a vacuum by high-temperature annealing (higher than 900 DEG C); first quenching; mechanical shaping (rolling, drawing, machining or the like); heat treatment for redissolution in beta phase beyond the beta transus temperature (until a second temperature and then maintaining same for a certain time); and second quenching; characterised in that said heat treatment phase is carried out in a gaseous atmosphere and also constitutes a surface treatment suitable for forming on the surface a layer of nitride, carbonitride, oxide, oxynitride or the like.

The present invention includes an apparatus and method of making the apparatus that biomedical apparatus comprises a device adapted for use in a biomedical application that comprises a high entropy alloy comprising at least 5 elements.

Bioscaffoldings formed of hydrogels that are crosslinked in situ in an infarcted region of the heart (myocardium) by a Michael's addition reaction or by a disulfide bond formed by an oxidative process are described. Each of the bioscaffoldings described includes hyaluronan as one of the hydrogel components and the other component is selected from collagen, collagen-laminin, poly-1-lysine, and fibrin. The bioscaffolding may further include an alginate component. The bioscaffoldings may have biofunctional groups such as angiogenic factors and stem cell homing factors bound to the collagen, collagen-laminin, poly-1-lysine, or fibrinogen hydrogel component. In particular, the biofunctional groups may be PR11, PR39, VEGF, bFGF, a polyarginine/DNA plasmid complex, or a DNA/polyethyleneimine (PEI) complex. Additionally, the hydrogel components may be injected into the infarct region along with stem cells and microspheres containing stem cell homing factors. The bioscaffolding may be formed on a stent or a cardiac medical device.

Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a multi-armed macromonomer comprising multiple side chains attached to a nucleus, wherein each side chain comprises a thio carbonyl thio fragment of the same or different reversible addition fragmentation chain transfer (“RAFT”) agent; and (b) one or more biomedical device-forming monomers are disclosed.

Compositions for inhibiting attachment of microorganisms to the surface of biomaterials include a polyether, such as a poloxamer. The compositions are especially useful for treating contact lenses to prevent bacterial attachment to the lens.

Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a hydrophilic polymer comprising one or more hydrophilic units and one or more thio carbonyl thio fragments of a reversible addition fragmentation chain transfer (“RAFT”) agent; and (b) one or more biomedical device-forming monomers are disclosed.

Methods and apparatus to form a biometric based information communication system are described. In some examples, the biometric based information communication system comprises biomedical devices with sensing means, wherein the sensing means produces a biometric result. In some examples the biometric based information communication system may comprise a user device such as a smart phone paired in communication with the biomedical device. A biometric measurement result may trigger a communication of a biometric based message. The system may operate in a vehicular environment.

Methods and apparatus to form a biometric based information communication system are described. In some examples, the biometric based information communication system comprises biomedical devices with sensing means, wherein the sensing means produces a biometric result. In some examples the biometric based information communication system may comprise a user device such as a smart phone paired in communication with the biomedical device. A biometric measurement result may trigger a communication of a biometric based information communication message.

A process for treating a silicone hydrogel biomedical device, especially an ophthalmic lens such as a contact lens, involves: immersing the silicone hydrogel biomedical device with a mixture of an organic solvent and a hydrophilic, polymeric material, for a sufficient time that the device is swollen in volume by at least 30%; and removing the organic solvent from the device while retaining at least a portion of the hydrophilic polymeric material therein.

Biomedical devices such as contact lenses formed from a comprising a polymerization product of a mixture comprising an ethylenically unsaturated-containing non-amphiphilic macromonomer comprising hydrophilic units or hydrophobic units derived from a living radical polymerization of one or more ethylenically unsaturated hydrophilic monomers or one or more ethylenically unsaturated hydrophobic monomers are disclosed.

The present invention relates to a biomedical device capable of using an earphone and microphone plug to transmit data and a method for transmitting data, wherein the biomedical device comprises: a measuring unit, a micro-control unit, an earphone and microphone plug, a switch unit, a level shift unit, an amplifying unit, and a power management unit. By way of inserting the earphone and microphone plug into an earphone and microphone jack of a portable electronic device, the biomedical device is able to transmit data to the portable electronic device without passing the certification of the transmission format defined by a potable electronic device vender in advance. Moreover, through the method, a user can input biomedical data into the portable electronic device, so as to record and trace the daily biomedical data thereof; in addition, the biomedical data can be uploaded to a Cloud Database via the portable electronic device for a telemedicine management.