A catheter assembly includes a first assembly including a catheter and a catheter hub, a second assembly including an inner needle and a housing, and a catheter operating member. The catheter assembly also includes a separation restricting mechanism separate from the housing. The separation restricting mechanism restricts separation of the first assembly and the catheter operating member in an inserted state in which the inner needle is inserted in the catheter, and allows the separation of the first assembly and the catheter operating member in a non-inserted state in which the inner needle is separated from the catheter.

An intravascular device delivery system has an elongated member with a flexible hypotube. The hypotube can be rotationally keyed to a steerable catheter. The flexible hypotube includes one or more cuts to allow bending of the flexible hypotube within a first plane. The steerable catheter is steerable to bend the flexible hypotube within the first plane, and longitudinally movable relative to the flexible hypotube to allow distal movement of the steerable catheter relative to a distal end of the flexible hypotube.

A system can include a housing that can be coupled with a base catheter. The system can further include an access catheter of which a first portion is positioned within the housing and a second portion extends out of the housing through an opening when the access catheter is in a retracted position. The system can further include a stiffener encompassing at least a portion of the second portion of the access catheter, and the stiffener can be graspable at an exterior of the housing for application of force thereto to advance the access catheter from the retracted position to an extended position. When the housing is coupled to the base catheter, the first portion of the access catheter can be advanced through at least a portion of the base catheter as the access catheter is advanced to the extended position.

An apparatus and method are presented for a therapy delivery device including a catheter, an endoscope and an endoscope shaft, one or more attachment features for attaching the catheter to the endoscope, wherein the catheter has an expandable lumen at a distal end and wherein the expandable lumen expands upon injection of a therapy at the proximal end of the catheter. Attachment features may be a series of clips along the length of the catheter for attaching to an endoscope or a second lumen on the catheter wherein an endoscope may through one of said lumens. Targeted therapy delivery may be a hydrogel or a chitosan hydrogel to provide a treatment within a sinus of a patient.

The invention relates to a device for retaining and moving a laparoscope during an operation, which comprises a securing unit for securing on a retaining arm, a receiving unit for retaining the laparoscope, as well as a main body. Furthermore, the device has a lever via which the receiving unit is secured to the main body. The main body is mounted on the securing unit in a rotatable manner about a first rotation axis via a first rotation unit. The lever is mounted on the main body in a rotatable manner about a second rotation axis via a second rotation unit. Furthermore, a first drive unit is provided, which, upon activation, drives the first and the second rotation unit in such a manner that the main body is rotated about the first rotation axis, and the lever is rotated about the second rotation axis by the same rotation angle in the opposite rotation direction.

Minimally invasive catheter relates to the field of eversible catheters. It is primarily intended for use as a urinary catheter, but is also usable in other fields. As a urinary catheter this minimally invasive catheter 1 used as an indwelling or intermittent catheter with transurethral or suprapubic approach. This catheter has specific technical solution for eversible motion where tubular membrane 2, attached between distal part 36a of the handle 36 and distal part 3a of the inner tube 3, can in one case free slide between these two parts and in another be fixed to form hermetically sealed space 14. Free sliding of membrane ensures eversible principle of motion during placement and withdrawal of the catheter 1. Fixation of membrane allows a formation of hermetically sealed space 14 with fluid to make catheter surface smoother and softer, and a balloon 33 to hold catheter 1 in place for prolonged period of time. Thus, present invention provides a urinary catheter that enables the reduced incidence of complications arising due to its application.

Balloon catheters for delivery of prosthetic hear valves is provided. The balloon catheters are configured to deploy a prosthetic heart valve through inflation. The balloon catheters are further configured with one or more retention bumpers to reduce or prevent migration of the prosthetic heart valve during delivery. Balloon catheters described herein are configured with substantially incompressible retention bumpers that promote longitudinal inflation fluid flow.

A system for accessing a central pulmonary artery includes an elongate, flexible tubular catheter, having a proximal end, a distal end and a catheter hub on the proximal end. An elongate, flexible rail has a proximal end, a distal end and a rail hub on the proximal end. The rail has a distal advance segment which extends at least about 10 cm beyond the distal end of the catheter when the catheter hub is adjacent the rail hub.

In various exemplary embodiments, a modular cannula device is provided that has an external, tubular cannula, a first tubular guide part which has a tapering distal end and can be inserted into the cannula so that its outer wall rests tightly against the inner wall of the cannula, and a second tubular guide part, which has a tapering, pointed distal end and can be inserted into the first guide part so that its outer wall rests tightly against the inner wall of the first guide part.

Disclosed are two-piece rapidly insertable central catheter (“RICCs”), introducers, and methods. For example, an introducer and a distal catheter piece of a RICC can be combined in an introducer assembly configured to be actuated with a single finger of a hand while the introducer is held between a thumb and another finger or fingers of the same hand. A catheter-advancement hub of the introducer includes a manifold coupled to a proximal portion of a distal catheter-hub piece of the distal catheter piece. An introducer needle of a syringe of the introducer has a needle shaft extending through the manifold and a distal end of the distal catheter piece. An introducer housing is over a syringe tip, the manifold, and the proximal portion of the distal catheter piece. The introducer housing of the introducer configured to provide column strength to a catheter tube of the distal catheter piece during a venipuncture.