摘要:
Medical devices for navigation through anatomy, including guidewires, which may have a core wire, a slotted tubular member, or both. Embodiments may have coils, including non-circular cross-section edge-wound marker coils, extended coil tips, and soldered or glued mesial joint coils. Core wires may have a step, ridge, or taper at the joints to the tubular member, and may be flattened at the distal tip. Radiopaque material may be located inside the tubular member, and the distal tip may be heat treated to make it shapeable. Additional tubular members or coils may be used concentrically or in line and may enhance flexibility, provide radiopacity, reduce friction, or reduce material or manufacturing cost. Tubular members may be chamfered or tapered continuously or incrementally. Slots may be arranged in groups, such as groups of three, and may be equal in depth or unequal in depth to provide a steerable or compressible tip.
摘要:
Medical devices for navigation through anatomy, including guidewires, which may have a core wire, a slotted tubular member, or both. Embodiments may have coils, including non-circular cross-section edge-wound marker coils, extended coil tips, and soldered or glued mesial joint coils. Core wires may have a step, ridge, or taper at the joints to the tubular member, and may be flattened at the distal tip. Radiopaque material may be located inside the tubular member, and the distal tip may be heat treated to make it shapeable. Additional tubular members or coils may be used concentrically or in line and may enhance flexibility, provide radiopacity, reduce friction, or reduce material or manufacturing cost. Tubular members may be chamfered or tapered continuously or incrementally. Slots may be arranged in groups, such as groups of three, and may be equal in depth or unequal in depth to provide a steerable or compressible tip.
摘要:
A medical device for guiding through anatomy, such as a catheter or guidewire, with a tubular body that has been slotted to enhance bending flexibility, and a polymer liner with an anti-collapsing structure, and a method of making a medical device with a kink-resistant corrugated tubular member and an anti-collapsing structure. Anti collapsing structures may be helical or annular, and may be wire, such as ribbon wire, grooves in the liner, corrugations, or a braid. Liners may be bonded to the anti-collapsing structure, or may have two layers, with the anti-collapsing structure between the layers. Corrugations may be formed between sections of the anti-collapsing ‘structure with heat, pressure, stretching, compression, a mold, or a combination thereof, and may extend inward or outward. Shape or wall thickness may vary along the length to provide a varying bending stiffness. Slots may be formed in groups of two, three, or more, and adjacent groups may be rotated about the axis forming a helical pattern.
摘要:
An apparatus (10) for removable attachment to the adjustment ring (26) of telescope sights (12) for firearms (14) or the like is disclosed including a pinch clamping band (28) having an integral, elongated linear projection (42) extending axially therefrom. The clamping band (28) includes a split, annular wall (30) having a transverse radial cut defining first and second, free ends (32, 34). The free ends (32, 34) of the annular wall (30) are drawn together by a bolt (40) extending between bosses (36, 38) extending outwardly from the annular wall (30) on opposite sides of the transverse cut. A lever (50) has a securement end (52) positionable between the free ends (32, 34) of the annular wall (30) and including an aperture (60) for slideably receiving the bolt (40). The lever (50) extends axially from the clamping band (28) parallel to the axis (A) of the adjustment ring (26) and the projection ( 42). C-shaped adapters (46) having an internal surface for slideable receipt on the adjustment ring (26) and having an external surface for slideably receiving the annular wall (30) can be provided to allow the annular wall (30) to fit different sizes of adjustment rings (26). The adjustment ring (26) can be rotated by pushing the free ends of the lever (50) and/or the projection (42) at a location axially spaced from the adjustment ring (26) and adjacent to the ocular end of the eyepiece (22) to allow the hands of the shooter to be in an aiming and firing condition on the firearm (14) while adjusting the magnification of the telescope sight (12).
摘要:
A circuit board includes an electrically conductive sheet having an insulative coating surrounding the conductive sheet, with a surface of the insulative coating around an edge of the conductive sheet having an arcuate or rounded shape. At least one electrical conductor is conformally deposited on at least the rounded insulative coating around the edge of the conductive sheet and defined via photolithographic and metallization techniques. Each electrical conductor on the insulative coating thereon around the edge of the conductive sheet conforms to the arcuate or rounded shape of the insulative coating and, therefore, has an arcuate or rounded shape.
摘要:
The present invention is directed to a non-gelled, curable composition including at least one compound having a plurality of imide functional groups. The compound in particular contains a reaction product of at least one secondary monoamine and at least one maleimide, and is suitable for use in coatings and castings.
摘要:
Provided is a method of forming a circuit board including (a) providing a first conductive sheet; (b) selectively removing one or more portions of the first conductive sheet to form a first panel having a first circuit board that is coupled to a disposable part of the first panel by at least one tab that extends from an edge of the first circuit board to an edge of the disposable part of the first panel; (c) applying an insulating coating to the first circuit board so that at least each edge of the first circuit board is covered thereby; and (d) separating the first circuit board from the disposable part in a manner whereupon at least part of the tab remains attached to the first circuit board and includes an exposed edge of the conductive sheet of the first circuit board. Circuit boards formed by the method are also provided.
摘要:
Processes for fabricating a multi-layer circuit assembly and a multi-layer circuit assembly fabricated by such processes are provided. The process includes (a) providing a substrate at least one area of which comprises a plurality of vias, these area(s) having a via density of 500 to 10,000 holes/square inch (75 to 1550 holes/square centimeter); (b) applying a dielectric coating onto all exposed surfaces of the substrate to form a conformal coating thereon; and (c) applying a layer of metal to all surfaces of the substrate. Additional processing steps such as circuitization may be included.
摘要:
Provided is a method of forming a circuit board including (a) providing a first conductive sheet; (b) selectively removing one or more portions of the first conductive sheet to form a first panel having a first circuit board that is coupled to a disposable part of the first panel by at least one tab that extends from an edge of the first circuit board to an edge of the disposable part of the first panel; (c) applying an insulating coating to the first circuit board so that at least each edge of the first circuit board is covered thereby; and (d) separating the first circuit board from the disposable part in a manner whereupon at least part of the tab remains attached to the first circuit board and includes an exposed edge of the conductive sheet of the first circuit board. Circuit boards formed by the method are also provided.
摘要:
A circuit board includes an electrically conductive sheet having an insulative coating surrounding the conductive sheet, with a surface of the insulative coating around an edge of the conductive sheet having an arcuate or rounded shape. At least one electrical conductor is conformally deposited on at least the rounded insulative coating around the edge of the conductive sheet and defined via photolithographic and metallization techniques. Each electrical conductor on the insulative coating thereon around the edge of the conductive sheet conforms to the arcuate or rounded shape of the insulative coating and, therefore, has an arcuate or rounded shape.