摘要:
Disclosed herein is a medical device including: a positioning catheter to be inserted into a blood vessel in the vicinity of an affected region; a treatment catheter to be inserted to reach the affected region; and attracting means provided at respective predetermined positions of both the catheters to apply a magnetic force in a direction of attracting each other; wherein the magnetic force of the attracting means restricts floating of the treatment catheter.
摘要:
An endoscopic treatment tool according to the present invention is an endoscopic treatment tool which is inserted into hollow organs via the mouth, nose, anus, or other natural orifice of the patient and performs suturing treatment within the hollow organs or abdominal cavities, includes: a hollow organ lining support which is smaller than the smallest diameter of a passage from a natural orifice of the hollow organ, the hollow organ lining support being able to expand so as to have a diameter larger than the smallest diameter of the passage from the natural orifice of the hollow organ.
摘要:
A sinusitis treatment device includes: a flexible first elongated body to be guided into an accessory; an imaging unit which is provided on the first elongated long body, for obtaining an image on the front side of a distal end of the first elongated body; a flexible second elongated body having a lumen in which the first elongated body is inserted; an expansive body which is provided on the second elongated body and which has an effective expansive section capable of radial expansive deformation within a natural ostium located between a nasal cavity and an accessory nasal cavity to push open a stenosed part of the natural ostium; and a positioning unit which is provided on the second elongated body, for positioning the effective expansive section of the second elongated long body moved along the first elongated body relative to the first elongated body.
摘要:
An optical pickup has a laser light source, beam splitter, collimator lens, reflection mirror, objective lens and photo detector are mounted in a case. An objective lens actuator includes a magnetic member and magnet. The optical pickup may become contaminated by uncured adhesive remaining at the edges of the adhesive surfaces of the magnet and the magnetic member that is transferred to the optical pickup via finger cots or tweezers, etc. In an adhesion step between the magnet and the magnetic member, in which part of a groove near to the center of the surface has a small depth and part of the groove near to the outer circumference of the surface has a large depth, an adhesive is drawn toward the center of the surface of the magnetic member by a capillary phenomenon and is prevented from spreading along the outer edge of the surface.
摘要:
In a lens actuator on which a first lens and a second lens are mounted, since the first lens and the second lens are disposed side by side, a problem is involved such that the lens actuator is bulky. The present invention provides a lens actuator comprising a first lens and a second lens having different optical paths, disposed between a light emitting element and an object lens, a holder for holding the first lens and second lens such that the optical axes of the first lens and second lens are parallel to each other, and a driving mechanism for driving the first lens and second lens each in the optical axis directions, wherein the first lens and second lens have respective outer periphery parts respectively outside the effective diameter, and the outer periphery parts of the first lens and the second lens are disposed to be partially overlapped with each other when viewed from the first lens and second lens optical axis direction.
摘要:
An optical pickup includes a lens moving mechanism constructed of a lens, a lens holder holding the lens, a guide member guiding the lens holder, a lead screw including a thread groove, a motor rotating the lead screw, and a rack gear including a body fixed to the lens holder and claws fitted into the thread groove of the lead screw, in which an arm connecting the body and the claws of the rack gear is formed so that the shape of a cross section perpendicular to the rotational axis direction of the lead screw is a convex shape, a recess shape or a wave-shape.
摘要:
An elongate member housing tool assembly includes a distal end side tubular member disposed on the distal end side and a proximal end side tubular member disposed on the proximal end side, which accommodate an elongate member, and a liquid inlet port to which a liquid supplying tool for supplying liquid into the distal end side tubular member is removably connected and which is provided on the distal end side tubular member. The distal end side tubular member and the proximal end side tubular member are wound spirally, and the proximal end of the distal end side tubular member and the distal end of the proximal end side tubular member are disposed in a spaced relationship from each other. A distal portion of the guide wire is accommodated in the distal end side tubular member, except possibly the most distal portion of the elongate member.
摘要:
An optical pickup device includes a house having three walls connected together whose horizontal cross-section is substantially U-shaped. A first wall supports one end of a shaft, a second wall facing the first wall supports the other end of the shaft and a third wall connects the first and second walls. A lubricant tray is surrounded by the three walls and the shaft. By the shaft being attached to an end side surface of the lubricant tray, the shaft can be integrally formed with the housing. A radius of curvature or an angle formed on a horizontal cross-section of the three walls is larger than a radius of curvature or an angle formed between one of the three walls and the lubricant tray.
摘要:
A guide wire includes an elongate wire body, and a marker at least at a distal-side portion of the wire body over the whole circumference to indicate the intracorporeal position of the wire body. The marker has a first line-forming portion and a second line-forming portion which intersect each other at a plurality of locations so that the marker has a grid-like shape as a whole. According to another aspect, a guide wire includes a member with a core wire, a marker-forming layer partly encircling the outer surface of the member and differing in color from the member, and a coating layer covering the marker-forming layer and the member at least in the marker-forming layer region and having transparency making the marker-forming layer visible. The marker-forming and coating layers can be formed from mutually miscible resins, while the marker-forming layer functions as a visible marker.