An implantable device for venous or peritoneal access including a housing including a void having distal a proximal openings; an insert for insertion through the proximal opening comprising a venous or peritoneal catheter; a valve element mounted in a cylindrical recess of the insert; an extracorporeal coupling member of which a terminal portion can be inserted into a proximal recess of the valve element; one or two conduits extending from the catheter to the proximal end of the coupling member via the valve element and the insert for providing fluid communication, which can be interrupted by rotating the coupling member. The coupling member can be extracted from the recess only in a state of interrupted communication.

A cannula assembly having a retention member and a method of manufacture of the cannula assembly is provided. The cannula assembly includes a cannula and a sleeve disposed around the cannula from a proximal end to a distal end. The sleeve can include a balloon formed by a stretch blow molding process following local heating once advanced over the cannula. Once formed, the balloon can be conditioned to constrict against the cannula. A conditioning aid can be advanced over the balloon when it is still formable to constrict the balloon against the cannula.

An improved feeding catheter is provided for feeding/recycling chyme to a distal stoma. The improved catheter includes a hollow tube having an end for insertion into stoma, and a second end adapted to be connected to a fluid source. The first end includes a retention feature comprising a plurality of ribs extending outwardly and longitudinally away from the tube and terminating at a nose junction. Web walls extend between at least one pair of adjacent ribs and the ribs further define a side facing opening configured for fluid to exit into the gastrointestinal tract. Further the retention feature can be moved between a relaxed condition and a stretched condition for insertion through the distal opening, wherein the maximum width of the retention feature in the stretched condition is less than the maximum width of the retention feature in the relaxed condition.

A method for facilitating formation of a stoma includes positioning a stent within an opening extending through an abdominal wall of a subject, accessing an internal intestinal segment through the opening in the abdominal wall, passing the intestinal segment through the stent and external of the abdominal wall and securing end margins of the intestinal segment against the abdominal wall surrounding the opening.

A gastric port system for transport of materials to the interior of a body cavity that may include a port configured to be disposed between a first body cavity and an area adjacent to the first body cavity. The gastric port system may further include a first bolster disposed on the port where the first bolster includes a magnet, and a second bolster disposed on the port where the second bolster includes a magnet, and the magnets are attracted to each other.

A device that is inserted through the abdominal wall and into the digestive tract of a human is disclosed. The device may be placed through a method such as percutaneous endoscopic gastrostomy (PEG). The device includes a gastrostomy style structure that provides fluid communication with the external environment of the patient with the internal contents of the stomach. The device is produced with a series of slotted collection channels that preferentially, when connected to a source of negative relative pressure, directs a significant volume of the high calorie fluidic components of the chyme out of the digestive tract, preventing exposure to the absorptive tissues of the digestive tract when simple sugars and carbohydrates are consumed.

An access port is disclosed for use in minimally invasive surgical procedures performed within a patient's abdominal cavity, which includes a body defining a bore configured to guide at least one surgical instrument into the abdominal cavity, and concave and convex anchoring regions for securing the access port relative to the abdominal cavity.

A percutaneous access device for use in minimally invasive surgery includes an elongated body having a proximal portion and an opposing distal portion. The proximal portion has a proximal bore extending therethrough and the distal portion has a distal bore extending therethrough. The distal portion of the body is hingedly connected to the proximal portion in a first percutaneous access position and a second anchoring position. In the first percutaneous access position the distal and proximal bores are linearly aligned when a surgical instrument is inserted into both the proximal and distal bores. In the second anchoring position the distal bore is angularly displaced from the proximal bore when the surgical instrument is removed from the distal bore.

A cannula assembly having a retention member and a method of manufacture of the cannula assembly is provided. The cannula assembly includes a cannula and a sleeve disposed around the cannula from a proximal end to a distal end. The sleeve can include a balloon formed by a stretch blow molding process following local heating once advanced over the cannula. Once formed, the balloon can be conditioned to constrict against the cannula. A conditioning aid can be advanced over the balloon when it is still formable to constrict the balloon against the cannula.

A feeding tube aperture supported and aligned with a feeding tube opening in an abdominal wall of a patient, including a base having a first end surface transverse to an axis of the base and a feeding tube, a second opposed end surface, a central feeding tube passage extending between the first and second end surfaces, a plurality of vent passages around the feeding tube passage and extending between the first and second end surfaces, a hollow, cylindrical feeding tube support extension centered on and extending outwardly from the feeding tube passage to support and align the feeding tube aperture, and a plurality of spaced apart resilient spacers extending outwards from the second end surface. The plurality of spaced apart resilient spacers resiliently space the second end surface from the abdominal wall and form a plurality of air passages to allow a flow of air around the abdominal wall and the feeding tube opening.