48 results about "Septum primum" patented technology

Devices and methods for sealing a passageway formed by a patent foramen ovale (PFO track) in the heart are provided. One method includes providing an abrading device to the PFO track and abrading the tissue within the PFO track. The abraded tissue forming the PFO track is then held together under pressure, either via lowering right atrial pressure or via applying suction to the septum primum to pull it into apposition against the septum secundum. After a sufficient period of time, the pressure is released and the abraded tissue heals to form a robust seal over the PFO track. Additionally, several devices are provided which can be placed into the PFO track to apply adhesive to the walls of the PFO track. The devices may or may not be left within the PFO track. If the devices are not left within the PFO track, the walls of the PFO track, covered with adhesive, are brought into apposition with one another and adhered together. If the device is left within the PFO track, the device is flattened from an expanded configuration to a flattened configuration, and the walls of the PFO track, adhering to the outer surface of the device, are pulled toward each other as the device flattens. The device may also include interior structure to hold the device in a flattened configuration.

Devices and methods are disclosed herein for closing a patent foramen ovale. The devices are deployed at the foramen ovale to secure the septum secundum and septum primum together, thus sealing the foramen ovale. Disclosed are devices that may be inserted through a piercing in the septum secundum and septum primum to secure the septa together. Also disclosed is a delivery device to be used in connection with the devices and methods described. In some embodiments, the devices include an expandable member that secures at least one side of either the septum secundum or septum primum to secure the two septa together.

Methods and apparatuses are disclosed for closing a patent foramen ovale. Some of the disclosed apparatuses include an elongate body having a proximal end and a distal end, with first and second suture clasp arms adapted to hold end portions of a suture when in an extended position. A first suture catch mechanism is slidably housed in the elongate body and moves in a proximal-to-distal direction to engage the suture end held by the first suture clasp arm, and a second suture catch mechanism is slidably housed in the elongate body and moves in a distal-to-proximal direction to suture end held by the second suture clasp arm. The first suture clasp arm can be positioned around the septum primum to deliver a suture thereto, and the second suture clasp arm can be positioned around the septum secundum to deliver a suture thereto.

A dual-lumen needle for aseptic filling and withdrawal of fluids from septum-plugged containers

A method for detecting and closing the patent foramen ovale including the steps of locating a His bundle, plane of the interatrial septum, and coronary sinus ostium in a patient; identifying a fossa ovalis on the basis of one or more predetermined distances between the fossa ovalis and the His bundle, the plane of the interatrial septum, and the coronary sinus ostium; locating a patent foramen ovale by probing the junction between the fossa ovalis and a limbus of the fossa ovalis; and causing injury to the surfaces of at least one of a septum primum and a septum secundum within the patent foramen ovale. Another method includes the steps of locating a tunnel of a patent foramen ovale by probing the junction between a fossa ovalis and a limbus of the fossa ovalis and causing injury to the surfaces of at least one of a septum primum and a septum secundum within the tunnel of the patent foramen ovale by applying energy to at least one of the septum primum and the septum secundum. Apparatuses to perform these methods are also provided.

The present invention is a catheter device. The catheter device will include a septum that is housed within a housing. The septum is designed such that it will seal the housing. The catheter device also includes a needle shield. The needle shield is configured to retain a needle if the needle is withdrawn from the housing. The catheter device is further configured such that the septum includes a receiving portion that is designed to engage a portion of the needle shield. However, if the needle is withdrawn from the housing, the needle shield will disengage from the septum so that the needle shield may be separated from the septum.

A dual-lumen needle for aseptic filling and withdrawal of fluids from septum-plugged containers.

A patent foramen ovale closure device, method of delivering and a delivery system are provided. The device may include a closure device releasably connectable to an actuator. The device may include a proximal segment, an intermediate segment and a distal segment. When delivered, the proximal segment and intermediate segment form a first clip-shaped portion sized and configured to be positioned over a septum secundum of the patent foramen ovale, and the intermediate segment and distal segment form a second clip-shaped portion sized and configured to be positioned over a septum primum of the patent foramen ovale.

Methods and apparatus are provided for non-invasively treating patent foramen ovale using an ultrasound imaging system and a high intensity focused ultrasound system to selectively target high intensity ultrasound energy on either or both of a patient's septum primum or septum secundum.

A catheter assembly may include a catheter adapter, a septum housing, and a septum. The catheter adapter may include a distal end, a proximal end, an inner wall extending between the distal end and the proximal end, and a lumen formed by the inner wall. The septum housing may include one or more protrusions and may be secured to the inner wall by one or more of the following: an interference fit between the one or more protrusions and the inner wall, a snap fit between the one or more protrusions and the inner wall, and bonding between the one or more protrusions and the inner wall. The septum may be at least partially disposed within the septum housing and configured to at least substantially seal the lumen.

A closure assembly is provided for a specimen collection container. The closure assembly includes a bottom ring and top ring assembly. The bottom ring is removably attachable to the open end of the container. The top ring assembly, which is removably attached to the bottom ring, includes a mounting ring and a pierceable, resealable septum that closes the bottom ring and permits pierceable instrument access therethrough. The container interior can also be accessed by the removal of the bottom ring from the open end of the container or by the removal of the top assembly from the bottom ring.

The present invention provides a patent foramen ovale (PFO) closure clip. The clips of the present invention include two closure members joined by at least two spaced central connecting members. Each of the at least two spaced central connecting members is attached to each closure member at a location on the periphery of the closure member. The clips are designed such that the at least two central connecting members extend through the inclined PFO tunnel and the two closure members compress the overlapping layers of septal tissue, i.e. septum primum and septum secundum, together to close the PFO tunnel. The clips of the present invention take various forms depending, in part, upon the distribution of force required to close a given PFO. Thus, in some embodiments, the closure members include arcuate peaks. In other embodiments, the closure members include loops. In still other embodiments, the closure members include prongs.

A septum for a catheter port comprises a proximal port sealing surface sized to cover a port opening and a distal fluid chamber facing surface which, when the septum is mounted in a port, faces a fluid chamber of the port in combination with a peripheral portion extending radially beyond the port sealing surface for engaging a housing of the port and retaining the septum in place on the housing and a protrusion extending distally beyond the fluid chamber facing surface so that, when the septum is mounted in a port, the protrusion extends distally into a fluid chamber thereof, a radially outer surface of the protrusion frictionally engaging a wall of the fluid chamber.

A cushion (16) for use with a mask in delivering a flow of breathing gas to a user includes a first portion (38) adapted to be coupled to a mask shell (22), a second portion (36) adapted to contact a surface of a user, and a wall portion (40) extending between the first portion and the second portion. The second portion includes a septum region (50) and an alare region (52), the septum region being adapted to curl back a first distance (d₁) from the user responsive to the cushion being donned by a user, and the alare region being adapted to curl back a second distance (d₂) from the user responsive to the cushion being donned by a user, the first distance being greater than the second distance.

Preformed guiding stylet for introducing a septal lead in contact with the septum or other intra-corporal device in contact with body tissue. This stylet include a flexible wire (10), to be introduced by its distal end in a central lumen of the lead, and a control handle (18). The wire is elastically deformable in bending and has sufficient rigidity in torsion to enable transmission by the handle rotation of a rotational movement over the entire length of the wire. In the unstressed status, the wire comprises successively in its distal part (12), a first curvilinear portion (C1), a first straight portion (D1), a second curvilinear portion (C2) and optionally a second straight portion (D2). The first and second curvilinear portions extend in respective planes (P1, P2) making an angle (φ3) between them defining a dihedral (Δ) which axis (φ) comprises the first straight portion (D1). The total length of the first curvilinear portion, the first straight portion and the second curvilinear portion is between 82 and 195 mm, this so as to coincide with the anatomical curvature of the venous system in which the lead equipped with its stylet will be introduced.

A catheter assembly may include a catheter adapter, which may include a proximal end, a distal end, and a lumen extending between the proximal end and the distal end. The distal end may include a catheter configured to be inserted into vasculature of a patient. The catheter assembly may also include a septum, which may be disposed within the lumen of the catheter adapter. The septum may be secured within the lumen in response to increased pressure by one or more of the following: one or more septum stoppers, a retention disc of a needle assembly, a U-shaped washer, and a conical washer.