A catheter (700) includes a tubular member (702) having a lumen and an outer surface, a sleeve (704) configured to be positioned in the lumen in a retracted configuration and to evert over at least a portion of the outer surface in an everted configuration, and a filament (700) configured to retract the sleeve (702) into the retracted configuration. The catheter includes an aperture (774) proximal of a distal end, where the filament (770) extends through the aperture (774) from the lumen. A pull member (772) may be on a distal end of the filament (770). The filament (770) may be looped, coiled, and/or bunched in the catheter (700) when the sleeve (704) is in the retracted configuration. A shuttle (718) may be attached to a distal end of the sleeve (704), where the shuttle (718) includes a tubular member configured to maintain patency of the sleeve (704), and the filament (770) engages the shuttle (718) to retract the sleeve (704) into the lumen.

This catheter has: a shaft (10) has a first side hole (31) and a second side hole (32) in a wall (12); an insertion member (20) disposed in the lumen (11) of the shaft (10); a first electrode (41) provided on outer side of the first side hole (31); and a first wire (51) that is electrically connected to the first electrode (41) through the first side hole (31) and extents in the lumen (11) of the shaft (10) but outside the insertion member (20), wherein the first wire (51) has a first position (61) and a second position (62) inside the shaft (10), and the second position (62) of the first wire (51) is located at a position deviated from the first position (61) by 45 degrees or more in a circumferential direction of the insertion member (20).

In one aspect, the present invention is an articulation joint for use in a low cost medical device such as an endoscope intended for a single use. In one embodiment, the articulation joint comprises a plurality of interconnected segments. In another embodiment, the articulation joint comprises an elongated tubular body. In another aspect, the present invention provides methods of manufacturing an articulation joint for use in a medical device.

A catheter assembly is disclosed, which includes a catheter, a catheter hub, a guide wire, and a guide wire hub. The guide wire has a guide wire rigidity changing portion that gradually decreases in rigidity from a proximal side toward a distal side, and the catheter has a catheter rigidity changing portion that gradually decreases in rigidity from a proximal side toward a distal side. In the catheter assembly, the catheter hub and the guide wire hub are connected to each other in a state where the distal side of the guide wire is exposed from a distal end of a lumen of a shaft portion and a guide wire rigidity changing point and a catheter rigidity changing point are aligned with each other in an axial direction.

A falloposcope intended for use with a hysteroscope to access, image, and collect samples from a patient's fallopian tube includes a cannula having an angled tip oriented to engage a fallopian tube os when the cannula is transcervically introduced to a patient's uterus through the hysteroscope. The catheter has a distal viewing tip configured to be advanced from a distal end of the cannula into the patient's uterus through a cervical os. A viewing chamber has a wide proximal end attached to the distal viewing tip of the catheter, and the viewing chamber is at least partially transparent and typically tapers in a distal direction to provide a clear viewing zone for the endoscope as well as atraumatic advancement into the fallopian tube.

A medical apparatus includes a medical device capable of maneuvering within a patient, an input device configured to be operated by a hand of a user, one or more sensors for sensing whether the hand of the user is interacting with the input device, and a controller configured to determine whether the one or more sensors is sensing that the hand of the user is interacting with the input device, and in a case that the controller determines that the one or more sensors is sensing that the hand of the user is not interacting with the input device, prevent actuation of the medical device.

Multi-filter endolumenal methods and systems for filtering fluids within the body. In some embodiments a multi-filter blood filtering system captures and removes particulates dislodge or generated during a surgical procedure and circulating in a patient's vasculature. In some embodiments a dual filter system protects the cerebral vasculature during a cardiac valve repair or replacement procedure.

The embodiments described herein relate to a self-positioning, quick-deployment low profile transvenous electrode system for sequentially pacing both the atrium and ventricle of the heart in the “dual chamber” mode, and methods for deploying the same.

A catheter placing instrument is provided. The catheter placing instrument includes an elongated body that extends in a longitudinal direction from a proximal end to a distal end. The elongated body has a top surface configured to receive a catheter extending from the proximal end to the distal end. The elongated body includes a catheter insertion section and a grip section. The catheter insertion section includes a catheter locking clamp located at the distal end of the elongated body, and the grip section includes a catheter guide. The catheter placing instrument can be used to place or implant any tubular medical device within a patient's body. A method of placing a tubular medical device at a deep location within a patient's body is also provided.

An overtube device and an endoscope assembly are provided, the overtube device includes an overtube body having a proximal end and a distal end, the overtube body is provided with a bore which extending from the distal end to the proximal end of the overtube body, the bore is configured to allow a passing portion of the endoscope assembly to pass therethrough; a pulling lumen is formed in the overtube body, which extends from the distal end to the proximal end of the overtube body, the pulling lumen is configured to allow a pulling part to pass therethrough, and the distal end of the pulling part is fixed with the distal end of the overtube body.