A modular dilation device (100) is provided for inserting multiple dilators into a target patient tissue site. The modular dilation device includes a first dilator (104) and a second dilator (530). The first dilator has a first dilator distal end (108) and a first dilator inner lumen (114). The first dilator has a first dilator side wall opening (118). The first dilator distal end has a first dilator open tip (116). The first dilator has a first dilator open slit (120). The first dilator open slit extends between the first dilator side wall opening and the first dilator open tip. The second dilator has a second dilator distal end and a second dilator inner lumen. The second dilator distal end has a second dilator open tip. When the second dilator is joined to the first dilator, the second dilator open tip is adjacent to the first dilator side wall opening.

Methods and design for a Slotted T-shaped PD Catheter are disclosed. The present invention includes a unique port design for peritoneal dialysis catheters that allows high outflow and inflow rates, with a minimum fluid velocity through the fluid entry ports. Features of this device include T-shaped catheter with subcutaneous tubing joining to an intraperitoneal portion that is essentially at right angles to the intraperitoneal tubing and slit shaped flow ports as opposed to round shaped flow ports.

A guide catheter extension, including a push member having a lumen, a proximal end and a distal end; a tube frame defining a lumen therein, a longitudinal axis, and a proximal segment and a distal segment, wherein the tube frame comprises a plurality of cut patterns therein; and a tongue element extending from the proximal segment of the tube frame, wherein the tongue element is coupled to the push member.

A modular dilation device is provided for inserting multiple dilators into a target patient tissue site. The modular dilation device includes a first dilator and a second dilator. The first dilator has a first dilator distal end and a first dilator inner lumen. The first dilator has a first dilator side wall opening. The first dilator distal end has a first dilator open tip. The first dilator has a first dilator open slit. The first dilator open slit extends between the first dilator side wall opening and the first dilator open tip. The second dilator has a second dilator distal end and a second dilator inner lumen. The second dilator distal end has a second dilator open tip. When the second dilator is joined to the first dilator, the second dilator open tip is adjacent to the first dilator side wall opening.

Methods and design for a Slotted T-shaped PD Catheter are disclosed. The present invention includes a unique port design for peritoneal dialysis catheters that allows high outflow and inflow rates, with a minimum fluid velocity through the fluid entry ports. Features of this device include T-shaped catheter with subcutaneous tubing joining to an intraperitoneal portion that is essentially at right angles to the intraperitoneal tubing and slit shaped flow ports as opposed to round shaped flow ports.

The invention is a catheter, which is formed from flexible material and has two basic configurations: An initial configuration, in which the catheter is supplied to the surgeon for insertion into the lumen of a patient, resembles a tension coil spring and a final configuration, which is an essentially linear configuration that is much longer and has a considerably smaller outer diameter than when it is in its initial configuration. The catheter is adapted to undergo a transformation from the initial configuration to the final configuration as it is pulled from its proximal end in order to withdraw it from the lumen of the patient.

An introducer assembly includes a sheath and a tubular member that are coupled by a movement that is simultaneously longitudinal and radial.

A nonlimiting method for injecting embolics utilizing an optimized plug and push technique, using a device having side holes which creates a plug upstream of the distal-most portion of said micro-catheters and thereby ameliorates the suboptimal outcomes associated with creating a plug upstream of a distal end hole via injecting embolics only at the distal-most portion of said catheters.

Disclosed is a Foley catheter which comprises a main tube, a positioning balloon portion, a urine drainage branch tube, an irrigation branch tube and a breaking portion. The main tube has a urine drainage lumen and an irrigation lumen. One end of the main tube has the positioning balloon portion communicated with the irrigation lumen, and the other end extends to form the urine drainage branch tube communicated with the urine drainage lumen and the irrigation branch tube communicated with the irrigation lumen. The breaking portion is formed at any one of positions including the position at the main tube, the urine drainage branch tube and the middle section of the irrigation branch tube, wherein the breaking portion is disposed in such a manner that the breaking portion will be broken when a tweak force exceeding a predetermined value is applied so that the Foley catheter is divided into two sections or the fluid in the positioning balloon portion flows out.

Embodiments of the present disclosure are directed to apparatuses, systems, and methods for merging a balloon catheter onto a locked guidewire. In one implementation, a balloon catheter may include an inflatable balloon affixed thereto and a slit extending from a distal end of a guidewire lumen to a position proximal of the balloon. The slit may be widened by a working member of an adapter to allow passage of the locked guidewire into the guidewire lumen of the balloon catheter. The balloon catheter may be merged onto the guidewire via the slit and delivered to the desired treatment device without requiring the guidewire to be unlocked. Advantageously, access to at least one desired treatment site may be maintained with the guidewire during merging of the balloon catheter.