A61M2039/0226

CONTROLLED ARTERIAL/VENOUS ACCESS
20180008764 · 2018-01-11 ·

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.

Venous access port assembly with x-ray discernable indicia
11547843 · 2023-01-10 · ·

A venous access port assembly having a housing base with a discharge stem, a cap, and an interior reservoir. The port assembly is provided with X-ray discernable indicia to identify an attribute of the assembly after its implantation and clearly appear on an X-ray of the patient in a manner informing the radiologist or technologist and the medical practitioner of that particular attribute. The indicia are cuts in a reservoir lining of radiopaque material such as metal where the cuts having narrow slot width are in the form of one or more sets of alphabetical letters such as “CT” in the lining's side wall or bottom wall.

Vascular Access Systems and Methods Thereof
20220401703 · 2022-12-22 ·

Disclosed herein are vascular access systems and methods thereof. For example, a vascular access system includes a port configured for subdermal implantation and a single-use access device. The port can include a port hub and a catheter tube. The port hub can include an access funnel and a septum defining a pair of port-hub lumens. The catheter tube can include a septum defining a pair of catheter-tube lumens fluidly coupled to the pair of port-hub lumens. The access device can include a bifurcated hub and a pair of cannulas. The pair of cannulas defines a pair of cannula lumens coupled to a pair of access device-hub lumens of the bifurcated hub. The pair of cannulas can be configured to simultaneously insert into the access funnel and couple the pair of cannula lumens to the pair of catheter-tube lumens when the pair of cannulas is fully seated in the port hub.

Flow modulation devices and methods of use with a hemodyalisys fistula or a graft
20220362537 · 2022-11-17 ·

A flow modulation device is positioned around a hemodialysis fistula or a graft and includes a non-expandable outer jacket with an inwardly-inflatable flow-modulation chamber positioned inside thereof. The flow modulation chamber is configured to be in fluid communication with a control chamber via a flexible catheter. The control chamber includes a puncture-resistant housing having an inner cavity covered by a self-sealing elastic membrane sealingly attached thereto and configured for repetitive needle punctures. Upon injection of fluid into the control chamber via a needle puncture, the flow modulation chamber inflates inwardly to compress the hemodialysis fistula or the graft causing a reduction of blood flow therethrough.

Refillable Implantable Device for Delivering a Drug Compound
20230092955 · 2023-03-23 ·

An implantable and refillable device for delivering a contraceptive agent is provided. The device comprises a reservoir within which the contraceptive agent is capable of being retained, wherein the reservoir defines a first surface and a second surface opposing the first surface. A release structure comprising a hydrophobic polymer surrounds at least a portion of the reservoir. The release structure is in communication with the reservoir such that the contraceptive agent can pass from the reservoir through the release structure. A septum is positioned adjacent to the first surface of the reservoir and a backing layer is positioned adjacent to the second surface of the reservoir.

Implantable access port including fluid handling features
11633582 · 2023-04-25 · ·

An access port for subcutaneous implantation is typically connected to a catheter, a distal portion of which is disposed within a vein or other vessel of the patient. The access port described herein is configured with enhanced fluid handling features to improve fluid flow therethrough while reducing the likelihood of clotting or occlusions in the attached catheter, thus improving system patency. The access port includes a body defining a reservoir, a needle-penetrable septum covering the top opening of the reservoir, a stem including a lumen in fluid communication with the reservoir, and a volume control device positioned in the reservoir. The volume control device includes a floor designed to move from a first position below the side opening to a second position adjacent the bottom surface, and a spring element positioned between the floor and the bottom surface, the spring element biasing the floor in the first position.

Tissue expanders having integrated drainage and moveable barrier membranes
11471239 · 2022-10-18 · ·

A tissue expander having an integrated drain includes a shell having an opening and one or more drainage holes, and an injection port disposed in the opening of the shell and forming a fluid-tight seal with the shell. The injection port includes a needle guard having a needle guard base with a top surface. The injection port includes a moveable barrier membrane overlying the top surface of the needle guard base. The moveable barrier membrane is moveable between a first position for inflating and deflating the shell with a first fluid and a second position for draining a second fluid from outside the shell. A magnet is coupled with the moveable barrier membrane, and a compressible spring is connected with the magnet. The compressible spring is compressed for storing energy as the moveable barrier membrane moves from the first position to the second position.

VARIABLE VOLUME INFUSION PORT
20230119481 · 2023-04-20 · ·

A variable volume infusion port is provided. The infusion port may include a port body having an internal fluid reservoir, a septum, a stem to fluidly couple to a catheter lumen, and a displaceable member disposed in the internal fluid reservoir. In a first position, the displaceable member is disposed proximate the septum, providing a relatively small fluid volume within the infusion port. Insertion of an injection device through the septum causes the displaceable member to move to a second location distal from the septum, providing a relatively large fluid volume within the infusion port for the duration the injection device remains in the infusion port. The displaceable member may include a rigid member operably coupled to a biasing element or a flexible member coupled to a biasing element.

Refillable Implantable Device for Delivering a Drug Compound
20230104358 · 2023-04-06 ·

An implantable and refillable device for delivering a drug compound is provided. The device comprises a reservoir within which the drug compound is capable of being retained, wherein the reservoir defines a first surface and a second surface opposing the first surface. A release structure comprising a hydrophobic polymer surrounds at least a portion of the reservoir. The release structure is in communication with the reservoir such that the drug compound can pass from the reservoir through the release structure. A septum is positioned adjacent to the first surface of the reservoir and a backing layer is positioned adjacent to the second surface of the reservoir.

Dural repair device and method of use

Dural repair devices that are configured to effectively and reliably repair the damage of a dural tear due to incidental durotomies are provided, along with methods of use. The devices and methods enhance the ability of a surgeon to repair a patients dura mater, or dura, during surgery of the central nervous system. The dural repair device has a multi-layer structure configured to exert a pressure or tamponade effect to compress a patient's dura to its state prior to the spinal surgery. Thus, the dural repair devices and methods of use may reduce the patients risk morbidity, further surgery, spinal headaches, or other injuries and discomforts.