摘要:
A kit of assemblable components for implantation into the bone of a mammal for use in distraction osteogenesis. The kit comprises a fixture, a footing and a distracter, the fixture including a longitudinally extending body portion with a proximal end and a distal end, the body portion having an exterior surface adapted for contact and integration with bone tissue, the body portion having a generally longitudinally extending bore extending from a proximal opening adjacent the proximal end to a distal opening adjacent the distal end. The footing includes a proximal surface and a distal surface. The distracter comprises a generally rod-shaped body including a distal end and a proximal end, and the proximal end of the distracter is adapted to bear against the footing. There are first and second engaging means on the fixture and the distracter respectively for adjustably locating the fixture relative to the distracter.
摘要:
Techniques that involve application of one or more rules to a “parent” program to generate a plurality of different “child” programs are described. Each of the rules may define a respective electrode configuration modification, and each child program may be a variation of the parent based on a modification of the electrode configuration of the parent according to one of the rules. The systems or devices may generate further generations of child programs from a previous generation child program using the same one or more rules. The child programs may be provided to a user, so that the user may test the efficacy of the new programs, assisting the user in identifying desirable programs. The child programs may be relatively minor variations of the parent program, and the user may “fine tune” a generally desirable parent program by testing the child programs.
摘要:
Techniques for increasing the safety of medical device programming using general purpose hardware, such as a general purpose personal computer, are described. In some embodiments, a system includes an intermediate computing device comprising an applications module. Information from the applications module, such as instructions for an implantable medical device (IMD), may be presented to a user via a user input terminal that is separate from the intermediate computing device. A user may interact with the user input terminal to select an instruction from the applications module, and the intermediate computing device may transmit the selected instruction to the IMD. In some embodiments, the intermediate computing device comprises a web server and the user input terminal comprises a web browser configured to access the web server. In other embodiments, the intermediate computing device comprises a client server and the user input terminal comprises a client.
摘要:
Techniques for increasing the safety of medical device programming using general purpose hardware, such as a general purpose personal computer, are described. Some embodiments include a watchdog module that is serviced by the general purpose hardware, a mediator module that monitors programming instructions from the general purpose hardware, and/or a safe mode input that may be activated by a user. In some embodiments, a system comprises an implantable medical device, an intermediate device, a computing device that communicates with the implantable medical device via the intermediate device. The intermediate device may provide any one or more of the safety measures described above. In some embodiments, the intermediate device is dedicated hardware, and critical programming functions are provided by the intermediate device, rather than the general purpose hardware. In some embodiments, an implantable medical device provides one or more of the above-discussed safety features, rather than a separate intermediate device.
摘要:
A bit for use with domestic riding animals, such as horses, has a mouthpiece including an arcuate portion curved in a plane oriented at between about 15 degrees to 75 degrees, and preferably at an angle of about 45 degrees, with respect to the jaw plane of the animal, and a pair of spaced apart cheekplates connected to the mouthpiece at slotted shank ends thereof. The cheekplates each include a central ring portion positioned along the major axis of the cheekplate having a rein slot; a shaft collinear with the major axis intersecting the ring portion; an integral bridle attachment at an end of the shaft; and an integral curbstrap attachment offset from the shaft intermediate the ring portion and the bridle attachment. The cheekplates are semi-rigidly connected to the mouthpiece by the engagement of the shaft with the slots and retained therein by a bolt and washer assembly such that each cheekplate can freely fit between about -5 degrees to +5 degrees about the major axis of the slot. The bolt and washer assembly provides for releasably connecting the cheekplates to the mouthpiece for replacing the mouthpiece as needed.
摘要:
A novel punch for employment in a machine utilizing a punch ring containing a number of spaced, radially-arrayed holes in which the punches are secured, with the punch ring being used in cooperative relation with a die ring employing a number of dies corresponding to the number of punches used. During synchronous rotation of the punch ring and the die ring, each punch interacts each time with a corresponding die, with this arrangement making it possible for the edges of a continuous roll of paper or the like destined to be used in a computer or other type of business machine to be rapidly and effectively punched. Although interacting punch and die arrangements are well known, in accordance with this invention I utilize punches that have novel domed heads, with this doming advantageously making it possible for the increment of paper about to be punched to be stretched such that at the time the punch actually enters the die, the stretched piece of paper tends to pop away from the rest of the paper the instant it is punched, thus greatly diminishing the chance of "hangers" being created, which would later tend to impair the action of the computer or business machine in which the paper is employed. The doming of the punches also serves the additional advantages of diminishing the chance that a new punch will be broken during its first encounter with its respective die, and minimizing the friction present between each die and punch combination during normal operation of the machine.
摘要:
In general, the disclosure is directed towards a small telemetry device with a limited user interface that allows a patient to program an implantable medical device. The user interface may comprise a safe mode button. In some embodiments, a consumer electronic device with a more complex user interface may communicate with the implantable medical device via the telemetry device.
摘要:
A method of installing a baffle (46) in a tubular header (10), (12) for a heat exchanger includes the steps of a) providing a concavo-convex baffle (60) with a periphery smaller than the internal periphery of the header (10), (12); b) locating the baffle (60) at a desired location within the header (10), (12); and c) applying a compressive force (102), (110) to the baffle (60) to compress the baffle toward a planar shape.
摘要:
Samples to be analyzed, such as physiological fluids (blood, urine, etc.) may be processed using centrifugal techniques. The sample is centrifugally passed through a separation column to extract the desired component from the aqueous phase. Next, the extracted component is washed free of extraneous materials and then eluted from the separating column by centrifugally passing a suitable solvent therethrough. The aqueous phase and extracted components are collected in separate containers.To facilitate this method, an apparatus is provided that accommodates switching between fluid flow paths in a centrifuge. The centrifuge utilizes a swinging bucket rotor which contains a separating column, the top end of which employs a fluid reservoir for holding the sample to be extracted. Fluids are passed through the separating column (a first flow path) from a central distributor in the centrifuge rotor while in operation. An outer ring of swinging buckets holds two receptacles (the second and third flow paths), one for the aqueous phase and one for the solvent phase containing the sample extract or physiological component. These two receptacles are placed in radial fluidic alignment with the separating column by the technique of reversing the direction of rotation of the rotor, thus switching between two fluid flow paths.
摘要:
Disclosed herein is an improved method for joining diamond to metal using a gold-tantalum or gold-niobium solder. The method utilizes powdered material, and a clamp to keep the diamond in place during the soldering step. The article produces has higher mechanical stability than articles produced by known procedures.