摘要:
Transluminal methods and apparatus for causing arterial blood to flow through a vein of a mammalian patient, in a direction opposite normal venous blood flow, after an arterial blood containing conduit has been purposely or inadvertently connected to the vein. The method includes the use of a transluminally inserted vessel lumen occluding apparatus to at least partially block (e.g., occlude, embolize or close) the lumen of the vein at a location that is proximal to the location at which the arterial blood containing conduit is connected to the vein. The apparatus comprises a radially expandable lumen blocking device that is implantable in the vein lumen and catheters and other apparatus for implanting the radially expandable lumen blocking device into the lumen of the vein.
摘要:
A device for delivering a fluid to a patient, including an exit port, a dispenser for causing fluid from a reservoir to flow to the exit port, a local processor programmed to cause a flow of fluid to the exit port based on flow instructions from a separate, remote control device, and a wireless receiver connected to the local processor for receiving the flow instructions. The device also includes a housing free of user input components for providing flow instructions to the local processor, in order to reduce the complexity and costs of the device so that the device lends itself to being disposable in nature. A system and a kit are also described that include the fluid delivery device, a separate, remote control device, and accessories for transcutaneous delivery of fluid medications. Methods of utilizing the fluid delivery device to infuse fluid medications are additionally disclosed.
摘要:
A device for delivering fluid, such as insulin, to a patient. The device includes an exit port assembly, a syringe-like reservoir including a side wall extending along a longitudinal axis towards an outlet connected to the exit port assembly, and a plunger assembly received in the reservoir. The plunger assembly includes a two-way shape memory element connecting first and second lateral segments, and having a changeable length decreasing from an uncharged length to a charged length when at least one charge is applied to the shape memory element. Successively applying a charge and removing the charge from the two-way shape memory element causes longitudinal movement of the plunger assembly towards the outlet of the reservoir in order to cause fluid to be dispensed from the reservoir to the exit port assembly.
摘要:
A system for providing food product to a patient. The system comprises a patient data device and a processing unit. The patient data device comprises a user interface, and is configured to receive information comprising a food product request from the patient. The processing unit is configured to receive information from the patient data device. The processing unit comprises a memory module and an algorithm. The memory module is configured to store at least: patient information, and food product information. The algorithm is configured to identify a food product for the patient based on: the food product request, the patient information, and the food product information. Methods of providing food product to a patient are also disclosed.
摘要:
A system and method for performing a medical procedure includes a first multi-linked mechanism comprising a plurality of first links, and a lumen therethrough; a second multi-linked mechanism comprising a plurality of second links, wherein the second multi-linked mechanism is constructed and arranged to be slidingly received by the lumen of the first multi-linked mechanism, and where the first and second multi-linked mechanisms are configured to transition from a limp state to a rigid state; a set of proximal cables comprising at least a first proximal cable and a second proximal cable; a set of distal cables comprising at least a first distal cable and a second distal cable; a cable control assembly constructed and arranged to independently apply tension to the first proximal cable and the second proximal cable; a cable interface assembly constructed and arranged to receive a force from at least the first proximal cable and the second proximal cable and to transmit a corresponding force to at least the first distal cable and the second distal cable. The force applied to the first distal cable and the second distal cable steers at least one of the first multi-linked mechanism or the second multi-linked mechanism.
摘要:
An articulating probe, comprises a first mechanism including a first link comprising a first longitudinal axis, a first articulation surface and a first motion-limiting element; and a second link comprising a second longitudinal axis, a second articulation surface and a second motion-limiting element. An articulation joint comprises the first articulation surface and the second articulation surface and constructed and arranged to allow two degree-of-freedom articulation of the second link relative to the first link. A motion resisting assembly comprises the first motion limiting element and the second motion limiting element, wherein the motion resisting assembly is constructed and arranged to resist rotation of the second link about the second longitudinal axis relative to the first longitudinal axis of the first link.
摘要:
An apparatus for driving an articulating probe comprises an elongate probe constructed and arranged to articulate in at least one predetermined degree of motion and to transition from a flexible state to a rigid state, and a force transfer mechanism constructed and arranged to apply a force to the probe. The force is selected from the group consisting of a force that causes probe to articulate in the at least one predetermined degree of motion and a force that causes the probe to transition from the flexible state to the rigid state. The base structure is attached to portion of the force transfer mechanism and the elongate probe; the base structure comprising one or more stabilizing elements constructed and arranged to resist undesired movement of the probe caused by force from the force transfer mechanism.
摘要:
Prosthesis, tools and surgical methods treat joint instability by avoiding loosening over time. A shoulder prosthesis includes a humeral member with a humeral joint surface and a humeral fixation member and a glenoid member comprising a glenoid body with a glenoid joint surface, and a glenoid fixation member attaching the glenoid body to a scapula. The glenoid fixation member may be attached orthogonally to the scapula. A dampener may be included to absorb loads that may loosen one or more components of the prosthesis.
摘要:
A catheter device and methods useable to extract material from a body conduit, e.g., a blood vessel, are provided. The catheter comprises a flexible catheter advanceable into the body conduit, an opening in a wall of the catheter in fluid communication with a material collection chamber, and a controllably arcuate segment near the distal tip of the catheter and the opening. The catheter may include a sliding member, located within a lumen of the catheter, used to move the material entering the catheter through the arcuate segment opening, into the material collection chamber and away from said opening. The catheter may include a single mechanism utilized to both generate a vacuum to cause material to enter the catheter at the arcuate segment opening and also cause the sliding member to travel, inside the catheter, moving material away from the opening and into the material collection chamber.
摘要:
A tubular graft device is provided comprising a tubular member and a fiber matrix of one or more polymers about a circumference of the tubular member. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a harvested saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided is method of preparing a tubular graft and connecting the graft between a first body space and a second body space, such as the aorta and a location on an occluded coronary artery, distal to the occlusion.