Apparatus and methods for controlled arterial/venous access are provided. The apparatus and methods may include a section of tubing anastomosed to a bodily lumen. A lumen clamping means may utilize a clamp manipulator to effectively seal the tubing, and the manipulator may be operated by two fingers. A needle receptor may be utilized, and the receptor may utilize a rotating member to guide a needle inserted from outside the body, in order ensure accurate placement into a channel. The channel may be in liquid communication with the tubing. The manipulator and the needle receptor may be palpable from outside the body.

A cuff is described for a target anatomic feature within a body, along with a system for utilizing the cuff. The cuff includes a band defining a circumferential opening extending along a length of the band; and a pair of engagement surfaces defined by or affixed to the cuff, the engagement surfaces structured for application of a spreading force to be distributed continuously along a portion of the circumferential opening, thereby increasing the circumferential opening and expanding the cuff for a closed configuration to an open configuration sized for placement of the cuff. The cuff is structured to remain in the closed configuration in the absence of the spreading force and automatically return to the closed configuration after removal of the spreading force.

Apparatus and methods for controlled arterial/venous access are provided. The apparatus and methods may include a lumen anastomosed to a bodily lumen. A lumen clamping means may utilize a clamp manipulator to effectively seal the tubing, and the manipulator may be operated by two fingers. A needle receptor may be utilized, and the receptor may utilize a compressible member to seal tightly against a needle inserted from outside the body, in order ensure secure placement into a channel. The channel may be in liquid communication with the tubing. The manipulator and the needle receptor may be palpable from outside the body.

In some examples, a catheter assembly includes a catheter including an elongated catheter body defining a lumen, a first cuff and a second cuff. The first cuff includes a first cuff body comprising a material configured to promote epidermal tissue growth around or within the first cuff and an adhesive configured to adhere the first cuff body to an outer surface of the elongated catheter body at a first cuff position selectable by a user. The second cuff includes a second cuff body comprising the material configured to promote epidermal tissue growth around or within the second cuff body and an adhesive configured to adhere the second cuff body to the outer surface of the elongated catheter body at a second cuff position selectable by the user. A distance between the first and second cuff positions is customizable by the user based on a patient.

Provided herein is a system including, in some embodiments, a streamlined port and a port tunneler. The port includes a septum and a stabilizing element. The septum is disposed over a cavity in a body of the port, and the septum is configured to accept a needle therethrough. The stabilizing element is configured to stabilize the port in vivo and maintain needle access to the septum. The port tunneler includes an adapter and a release mechanism. The adapter is in a distal end portion of the port tunneler, and the adapter is configured to securely hold the port while subcutaneously tunneling the port from an incision site to an implantation site for the port. The release mechanism is configured to release the port from the adapter at the implantation site for the port.

Provided herein are novel devices for the formation of arteriovenous fistulas, which may aid subjects in need of hemodialysis. The novel devices are provided in a non-surgical procedure, greatly decreasing the cost and increasing the convenience of placing an arteriovenous fistula. The devices are atraumatic, and consist of a sutureless anastomosis device and conduit. Methods and tools for placing the devices in vivo are disclosed, including a magnetic-assisted method.

Described herein is an implantable access port device with a catheter compartment which permits lengthening or shortening the catheter in response to changes in tension of the distal catheter. Implantable access port devices are used extensively in the medical field to facilitate the performance of recurrent therapeutic tasks such as repeated drug delivery, drainage, blood sampling, transfusions, or total parental nutrition. In current access port systems, the catheter is rigidly attached to the access port via a connection ring. As such, the system does not provide any flexibility or ability for catheter length adjustments, which can lead to long-term complications such as dislodgement of catheters, migration of catheters, port separation with extravasation, suture disruption, and mechanical failure of the access port system. These catheter-related complications carry serious risks for the patients. The implantable access port system described herein permits self-adjusting catheter length, thereby reducing catheter-related complications.

A material includes a metallic, nanoporous structure having a plurality of nanopores having a porosity that allows passage of insulin but not IgG. The metallic nanoporous structure includes titanium, 316L stainless steel and may have a textured nano-sericeous surface. A nanoporous bicontinuous structure can be integrated with nanopores.

The present disclosure relates to a subcutaneous fixation system for fixing medical devices, in particular catheters, and keeping them in position with respect to an access point on the skin of a patient.

Apparatus and methods for controlled arterial/venous access are provided. The apparatus and methods may include a lumen anastomosed to a bodily lumen. A lumen clamping means may utilize a clamp manipulator to effectively seal the tubing, and the manipulator may be operated by two fingers. A needle receptor may be utilized, and the receptor may utilize a compressible member to seal tightly against a needle inserted from outside the body, in order ensure secure placement into a channel. The channel may be in liquid communication with the tubing. The manipulator and the needle receptor may be palpable from outside the body.