44results about How to "Low compliance" patented technology

A method and apparatus for providing low-cost, realistic force feedback including an improved actuator. The invention provides force sensations to a user and includes an interface device coupled to a host computer and allowing a user to interact with a host application program. A user object, such as a joystick, is moveable by a user in at least one rotary degree of freedom. A sensor reports a locative signal to the host computer to indicate a position of the user object. An actuator outputs forces on the user object in response to signals from the host computer and program. The actuator includes a housing, a set of grounded magnets provided on opposing surfaces of the housing and creating a magnetic field, and a rotor coupled to the user object positioned between the magnets. The rotor rotates about an axis of rotation and includes a shaft and teeth spaced around the shaft. An electric current flows through one or more coils on the teeth to cause the rotor to rotate. The teeth and the magnets are provided in a skewed, helical arrangement relative to each other so that, as the rotor rotates, a first tooth gradually exits the magnetic field as the next consecutive tooth gradually enters the magnetic field, thereby significantly reducing a cogging effect of the rotor when the user object is moved by the user and increasing the fidelity of forces experienced by the user.

A balloon catheter having a multi-layered balloon which has a first layer and at least a second layer, and which has noncompliant limited radial expansion beyond the nominal diameter of the balloon. By selecting the polymeric materials forming the balloon layers, and arranging and radially expanding the multiple layers of the balloon in accordance with the invention, a balloon is provided having an improved low compliance, preferably in combination with high flexibility and softness.

An expandable medical device or component thereof including a tubular body formed of a wrapped sheet of porous polymeric material fused together, the tubular body having a fused seam at an angle relative to the longitudinal axis of the tubular body which changes along the length of the tubular body from a first angle to a second angle greater than the first angle. The sheet of porous polymeric material is wound and then fused together such that the winding angle is less in a first longitudinal section of the tubular body compared with the winding angle in a second longitudinal section of the tubular body, in order to provide the second section with greater resistance to expansion (i.e., lower compliance) than the first section.

A balloon catheter having a balloon formed at least in part of a blend of a first polymeric material having a first Shore durometer hardness, and at least a second polymeric material having a second Shore durometer hardness less than the Shore durometer hardness of the first polymeric material. The balloon of the invention has enhanced softness and flexibility due to the presence of the second polymeric material, and a lower than expected compliance. In a presently preferred embodiment, the balloon is formed of a blend of polymeric materials comprising polyether block amides.

The invention provides compositions and methods for the prevention, diagnosis, or treatment of conditions affecting breast tissue. The compositions can include one or more therapeutic agents or diagnostic agents, and an effective carrier. The composition can be specifically adapted for transdermal permeation through the mammary papilla, areola, or a combination thereof, and into underlying breast tissue.

The present invention refers to medical devices. Particularly it relates to stent devices and balloon catheter devices. In the most particular aspect of the invention it relates to balloon catheter devices carrying stents (2) with the medical balloon (3) comprising an inner layer (4) having a lower compliance rate and/or burst pressure than the outer layer (5) and an outer layer (5) having on the outer surface (6a) a higher adhesion strength than the inner layer (4), and its use in a variety of medical procedures to treat medical conditions in animal and human patients.

A method of treating cholesterol imbalance, high LDLs, and other metabolic syndrome problems and symptoms of osteoarthritis. The regimen preferred embodiment includes lipids as 60% or more of daily caloric content, protein up to 10%-15% of daily caloric content; and carbohydrates up to 25% or less of daily caloric content, primarily in the form of non-starchy, low-glycemic fresh fruit and vegetables, and nuts, along with a daily intake of 35 grams of dietary fiber, with a significant percentage of this as soluble fiber; average daily cholesterol intake of less than 10 mg, and 30 grams of cocoa solids.

A balloon catheter assembly includes a catheter shaft, and a balloon mounted on the catheter shaft. The balloon includes a distal neck portion, a proximal neck portion, and an inflatable body portion in between the distal and proximal neck portions. The distal and proximal neck portions are connected to the catheter shaft. The balloon also includes a fiber provided on the body portion. The fiber is oriented relative to the longitudinal axis of the body portion at an angle between about 45° and about 135°, and has a diameter of less than about 10 μm.

Twin bore ophthalmologic tubing includes first and second tubes. The second tube has portions of differing hardness with one of the portions being at an end of that tube. The second tube has a portion at its other end with about the same hardness. Portions of the first and the second tubes may have about the same hardness. In some embodiments, portions of the first and second tubes with the same hardness can correspond to each other along the tubing. One of the portions can have a hardness of 80 to 90 shore A while the other portion can be 60 to 70 shore A. In some embodiments, portions with 60 to 70 shore A hardness can be about six to twelve inches long.

The systems and methods described herein relate to an improved stretchable hose apparatus which enables the transmission of high-throughput signals along several conductors within a conductor cable. In particular, the stretchable hose enables consistent high speed communications and high power transmission between a buoyant object and an optional underwater device in all weather conditions by permitting compression of the conductor cable in a first range of hose extensions and limiting elastic elongation of the conductor cable in a second greater range up to full hose extension.

The invention concerns a clamping element (1) for attaching a gripper (42, 44) onto a clamping tongue as well as a gripper with this kind of clamping element (1). The clamping element (1) has a longitudinal carrier (10) the width of which substantially corresponds to the width of the clamping tongue (42, 44) and at least two mutually distanced clamping regions (20, 20′). Besides at least one fastening element (30, 30′) for the detachable fastening of the clamping elements (1) to the clamping tongue (42, 44) is provided. By means of the invention an improved force division as well as a secure support on the clamping tongue is achieved.

combination of at least two polyamides. The catheter component can be made from a blend of the two polyamides, or a co-extrusion of the two polyamides with an inner layer and an outer layer. The first polyamide has a Shore D durometer hardness of more than seventy seven (77), and can be selected from various transparent amorphous nylons having an amorphous segment such as an aliphatic segment, an aromatic segment, or a cycloaliphatic segment. The second polyamide has a lower durometer hardness than the first polyamide, and preferably less than 73, and can be a block copolymer of nylon and polytetramethylene glycol. Both polyamides have the same amide block or segment, e.g. nylon 12. Adding small amounts of the high hardness polyamide can reinforce the low polyamide at the amorphous segments, thereby increasing the overall strength of the material.

The invention discloses an orally taken granule for treating malaria and a preparation method thereof. The orally taken granule contains artesunate, coating material, stabilizer, filler, preservative and corrigent. 1000mg of oral liquid contains 60g of artesunate, 5g of coating material, 0.35g of stabilizer, 550g of filler, 1.2g of preservative and 5g of corrigent. The orally taken granule can overcome the shortage of infant medicines and can meet the requirement of infant for taste; plenty of documents and practices prove that the medicinal saccharose is taken as main filler, and meanwhile, the covering function of different coating materials for the bitter and the guiding functions of acesulfame and natural plant essence for gustation are surveyed, and the optimal tasty formula is screened through plenty of blinding data model researches.

In accordance with the invention, a low impedance surface-mount connector comprises a length of cylindrical rod having an I-shaped cross section. The device permits interconnection by pick-and-place techniques, and the interconnection has advantageous qualities of low resistance, low inductance, mechanical compliance and ease of manufacture. A first circuit device having one or more circuit components is interconnected with a second circuit device by surface mounting such connectors on the first circuit device, providing corresponding solder pads on the second circuit device, and mounting the connectors of the first circuit device onto the pads of the second.