The invention generally relates to a method and apparatus to treat obesity and controlling weight gain. In an exemplary embodiment, the invention relates to a covered cage device that is implanted within a human's stomach to occupy volume and cause a reduced desire for eating. The covered cage device is made from a wire-mesh, such a Nitinol, and can be adjustable and collapsible. In another embodiment, the covered cage device has edges that provide stimulation to the stomach to induce a feeling of fullness.

The devices and methods can prevent pulmonary aspiration thereby allowing for procedures, such as an endoscopic procedure, to be performed under sedation without general anesthesia. The device may include a first end, a second end, and a length therebetween. The body may have a central lumen along the length. The device may include a first base member fixedly disposed at the first end and a second base member fixedly disposed at the second end. The device may also include an expandable assembly movable along the length of the body with respect to the first base member. The expandable assembly may be configured to move between a collapsed configuration and an expanded configuration. The expandable assembly may also be configured to expand radially with respect to the body when in the expanded configuration.

Everting balloon systems and methods for using the same are disclosed herein. The systems can be configured to access and dilate body lumen and cavities. For example, the systems can be used to dilate the cervix and access the uterine cavity. The systems can also be used to occlude the cervix. The systems can also be used to occlude the urethra.

Embolic compositions comprising macromers having a backbone comprising a polymeric backbone comprising units with a 1,2-diol or 1,3-diol structure, such as polyvinyl alcohol, and pendant chains bearing crosslinkable groups and, optionally, other modifiers. When crosslinked, the macromers form hydrogels having many properties advantageous for use as embolic agents to block and fill lumens and spaces. The embolic compositions can be used as liquid embolic agents and crosslinked in situ or as preformed embolic articles, such as microspheres.

The present disclosure relates generally to the field of medical devices and procedures for isolating a treatment region in the body from other regions, such as a treatment region in the digestive tract from other regions of the digestive tract. In particular, the present disclosure relates to devices and methods for performing a treatment within the upper gastrointestinal tract, esophagus, gastroesophageal junction, and/or stomach that utilizes a barrier member to isolate a proximal region of the digestive tract from a distal region of the digestive tract such that fluids introduced during the treatment do not substantially communicate between the regions.

In at least one embodiment, a medical device can comprise an elongate outer sheath that extends along a sheath longitudinal axis and defines a central lumen extending therethrough, the elongate outer sheath can comprise a proximal sheath portion and a distal sheath portion. A first guidewire can comprise a first guidewire end and a second guidewire end, the first guidewire can extend from the first and second guidewire ends through the central lumen and can form a distal looped portion. An occlusion device can be disposed at a distal end of an elongate flexible shaft. The elongate flexible shaft can extend from the proximal sheath portion through the central lumen. The occlusion device can include a guide lumen through which the first guide wire passes.

A fluid delivery device includes a tube coupled to an axial manipulator. The axial manipulator includes an elongate member arranged to move axially in a housing. The tube is in fluid communication with a fluid diverter which is arranged to move axially in the housing upon axial movement of the elongate member. Seals are provided to prevent fluid from leaking out of the housing. A fluid port is in fluid communication with the tube via the fluid diverter, such that fluid can flow in and out of the tube via the fluid port and the fluid diverter.

A system for delivering an implant within a patient is disclosed. The activation of the heater coil causes the degradation, melting or reduction of a component that brings the heater coil into or out of electrical contact with another component, or causes the individual loops of the coil to contact each other, thereby resulting a notable change in resistance in the circuit supplying the heater coil with electricity. A core wire terminates prior to the distal end of the device, allowing for greater flexibility.

Surgical systems are provided. In one exemplary embodiment, a surgical system includes first and second port devices, that are each configured to be at least partially disposed within a body. The first port device includes a first housing defining a first plurality of ports each configured to allow a respective instrument of a first set of instruments to be inserted therethrough. The first port device is configured to interact with at least one respective instrument that is inserted through its respective port. The second port device is configured to interact with at least one respective instrument that is inserted through its respective port. The first and second port devices are each configured to allow at least a portion of the first set of instruments and at least a portion of the second set of instruments to work cooperatively together. Methods for using the same are also provided.

Surgical sealing systems are provided. In one exemplary embodiment, a surgical sealing system includes a seal housing having a plurality of ports, in which each of port has a nominal size and shape, is configured to assume a selected and/or shape that is different from the nominal size and shape, and is constrained by the size and shape of each of the other plurality of ports. The position of an instrument and a force applied thereto is effective to change the size and/or shape of the ports based on the movement, direction, and force of the instrument, and the ability to alter the nominal shape of any one port is constrained or limited by the size and shape of the other ports, thereby enabling a force applied to one instrument positioned within one of the plurality of ports to stabilize at least one other instrument positioned within others of the plurality of ports.