15 results about "Ostium" patented technology

A neurovascular catheter for delivery through an aorta and into an ostium can include a tubular body between a proximal end to a distal end. The tubular body can have a length of 140 cm to 180 cm, a 5Fr size, and an internal diameter of about 0.065" to about 0.067". The tubular body can include a proximal portion and a distal portion. The distal portion can include a polymer layer and a layer of braids. The proximal portion can include a hypotube and the layer of braids.

Apparatuses and methods for quickly and accurately positioning a stent within the ostium of a blood vessel so that the entire circumference of the proximal stent edge is within the aorto-ostial landing zone (AOLZ). Any of these methods and apparatuses may include an ostial positioning catheter including an annular sealing balloon, a distal reinforced shaft, and a hypotube extending proximally from a longitudinal side of the distal reinforced shaft. These ostial positioning catheters may be independently operated with a guide catheter and a stent deployment catheter.

A delivery sheath can comprise an elongate tubular member and an anchor on a distal portion of the elongate tubular member, the anchor being configured to engage with the coronary sinus ostium, or both the coronary sinus ostium and a portion of the coronary sinus adjacent to the ostium, so as to provide stable transcatheter access into the coronary sinus. The anchor can be configured to permit blood flow through the ostium while in engagement with the ostium.

Disclosed in the present invention are a high-precision hemostatic balloon and system, which relate to the technical field of medical devices. The high-precision hemostatic balloon is used for uterine cavity hemostasis and comprises a balloon assembly and a catheter assembly. The balloon assembly comprises an intrauterine hemostasis balloon and an intravaginal fixing balloon. The intrauterine hemostasis balloon comprises a middle balloon mainly used for compressing front and rear walls of the uterus, and left and right side balloons mainly used for compressing left and right side walls of the uterus. The three balloons form a flat inverted pear shape with a wide top and a narrow bottom, and front and rear diameters being smaller than left and right diameters. The intravaginal fixing balloon is clamped and fixed in the vaginal fornix and surrounds the cervix after expansion, and the internal cervical orifice is closed while the intrauterine hemostasis balloon is lifted. The catheter assembly is used for draining accumulated blood and performing fluid filling and drainage on the balloon assembly. By utilizing the characteristics of the vaginal fornix at the cervix ostium, the present invention provides the intravaginal fixing balloon to lift the hemostasis balloon and close the internal cervical orifice. In addition, the use of a multi-cavity hemostasis balloon improves the regional compression precision of the balloon.

To provide a vibrating endoscopic catheter for suitable tubal advancement.SOLUTION: A falloposcope intended for use with a hysteroscope to access a patient's fallopian tube, image the fallopian tube, and collect a sample from the fallopian tube includes a cannula having an angled tip oriented to engage the ostium of the fallopian tube when the cannula is trans-cervically introduced into the uterus of the patient through the hysteroscope. The catheter has a distal viewing tip configured to be advanced from the distal end of the cannula through the cervical os and into the uterus of the patient. The viewing chamber has a wide proximal end that is attached to the distal viewing tip of the catheter, and the viewing chamber is at least partially transparent and typically tapers distally in order to provide a clear viewing area for the endoscope as well as atraumatic advancement into the fallopian tube.SELECTED DRAWING: Figure 6

A kit for assembling a collapsible and expandable occluder for occluding a left atrial appendage (“LAA”) may include a plurality of proximal discs and a plurality of distal lobes. Each proximal disc may be configured to cover an ostium of the LAA in an implanted condition of the occluder, and each of the plurality of proximal discs may have a different diameter in an expanded condition than other ones of the plurality of proximal discs. Each distal lobe may be configured to be received within a cavity of the LAA in the implanted condition of the occluder, and each of the plurality of distal lobes may have a different diameter in an expanded condition than other ones of the plurality of proximal discs. Each of the plurality of proximal discs may be configured to couple to any one of the plurality of distal lobes to form the occluder.

The animated GUI is an information display image displayed on the screen of an information terminal. The GUI displays a blood vessel and a catheter inserted through the ostium of the vessel, is generated based on data obtained from the device, and allows the user to verify correct placement of the catheter. Additionally, electrodes positioned around the catheter's circumference and the shape of the blood vessel at specific locations are highlighted to confirm proper contact of each electrode with the tissue. The design is characterized by a combination of the shape, position, and contrast of the graphical elements. The design is displayed in grayscale. Protection is not sought for the specific color of the design. The red-colored area within the dashed line in the design view indicates the portion of the graphical user interface that does not form part of the design sought to be registered. Figure 3.1 shows the first image in a sequence of a graphical user interface for a display screen or portion thereof. Figure 3.2 shows the second image. 3.1) Front View; 3.2) Front View

A fenestrated graft deployment system, with a delivery catheter having a catheter body. An endoluminal prosthesis having a main graft body, the main graft body having a lumen therethrough and a first opening laterally through a wall of the main graft body. A first guidewire prepositioned within the delivery catheter extending through at least a portion of the catheter body into a main lumen of the endoluminal prosthesis and through the first opening in the wall of the prosthesis when the delivery catheter is in a predeployed configuration. A first fenestration alignment device is configured to extend through at least a portion of the delivery catheter and is configured to be axially moveable relative to the first guidewire. The first fenestration alignment device has an end portion having an outside perimeter configured such that when an end portion of the fenestration alignment device moves toward the first opening of said main graft body the outside perimeter of the first opening is smaller than the outside perimeter of the first fenestration alignment device and prevents it from passing through the first opening and causes the main graft body adjacent to the first opening to move with the end of the first fenestration alignment device to act as alignment tool to allow an operator to align the first opening in the side of the endoluminal prosthesis with an ostium of a target branch vessel into which said first opening is to extend and act as a guide and seal for a subsequently delivered branch graft endoluminal prosthesis.

A left atrial appendage (LAA) ligation device is adapted for ligating the LAA via a trans-septal approach, the LAA including an ostium. The LAA ligation device includes a spiral ligation element extending from an end point disposed at a periphery of the spiral ligation element to a center point of the spiral ligation element, the spiral ligation element having a diameter defined by the periphery and a length defined between the periphery and the center point. A delivery device is adapted to releasably secure the spiral ligation element and to enable rotation of the spiral ligation device.

A medical device for occluding a left atrial appendage ("LAA") may include a proximal occluding member to cover an ostium of the LAA and a distal occluding member to be received within a cavity of the LAA. A connecting member may connect the proximal occluding member to the distal occluding member. An occluding material may be uncoupled from the proximal occluding member in a delivery condition of the proximal occluding member, and uncoupled from the distal occluding member in a delivery condition of the distal occluding member, the occluding material configured to at least partially fill and occlude the LAA. In some examples, the distal occluding member is entirely excluded, and the medical device includes other anchoring provisions, such as tethers that latch onto a back wall of the LAA.

Described herein are examples of a left atrial appendage (“LAA”) occlusion or elimination implant device further configured to ablate tissue located at an atrium of the heart or nearby veins and ostia. The implant device can be delivered to a patient's heart using a catheter system and includes a contact member comprising one or more electrodes. In use, the electrodes of the contact member can perform unipolar or bipolar ablation at an ablation site that is distinct from an ostium or interior of the LAA. The implant device can then be re-positioned at least partially within the LAA, and the contact member can be implanted to occlude or eliminate the LAA. The implant device can further include a securing element comprising one or more electrodes, the securing element configured to cooperate with the contact member in performing unipolar or bipolar ablation and / or occluding or eliminating the LAA.

An interventional ostium occlusion catheter includes a catheter tube with at least one port at a first end, a tip at a second end, and a central lumen, with a positioning component and an occlusion component on the surface of the catheter tube close to the tip. A method of coronary intervention using the catheter includes maneuvering the catheter to an ostium; inserting the catheter into a coronary vessel; activating the positioning component and the occlusion component; and delivering an infusion via the lumen. An interventional system for improving management of ischemic cardiac tissue during acute coronary syndromes includes the catheter; a blood infusion device that delivers controlled reperfusate; and a ventricular unloading device that manipulates myocardial oxygen demand in a coronary chamber. The operator can mitigate reperfusion-related and oxygen-related tissue injury by precisely modulating oxygen re-exposure when re-establishing flow and when using a ventricular unloading device.

A medical device for occluding a left atrial appendage, LAA, the medical device comprising a single occlusive member configured to occlude an ostium of the LAA in a deployed condition of the medical device, wherein the occlusive member is a disc-shaped portion, and wherein the medical device is configured to be attached only to the ostium of the LAA.

A neurovascular catheter for delivery through an aorta and into an ostium can include a tubular body between a proximal end to a distal end. The tubular body can have a length of 140 cm to 180 cm, a 5 Fr size, and an internal diameter of about 0.065″ to about 0.067″. The tubular body can include a proximal portion and a distal portion. The distal portion can include a polymer layer and a layer of braids. The proximal portion can include a hypotube and the layer of braids.

An implantable thoracic duct pump device and method for alleviating diuretic-refractory fluid overload. In an embodiment, the implantable thoracic duct pump device includes a fluid micropump with a motor inlet and a motor outlet; a thoracic duct cannula in fluid communication with the motor inlet; and a duct seal surrounding an exterior of the thoracic duct cannula and configured to form a seal at an outlet of a thoracic duct, wherein the duct seal is sized and shaped to seal an ostium of the thoracic duct when the thoracic duct cannula of the implantable thoracic duct pump device is implanted in the thoracic duct of a subject. In an embodiment, the method includes providing an implantable thoracic duct pump device external to the thoracic duct outlet within a venous system of a subject, and generating a pressure differential between the venous system and the thoracic duct of the subject.