摘要:
Sinusitis, mucocysts, tumors, infections, hearing disorders, choanal atresia, fractures and other disorders of the paranasal sinuses, Eustachian tubes, Lachrymal ducts and other ear, nose, throat and mouth structures are diagnosed and/or treated using minimally invasive approaches and, in many cases, flexible catheters as opposed to instruments having rigid shafts. Various diagnostic procedures and devices are used to perform imaging studies, mucus flow studies, air/gas flow studies, anatomic dimension studies and endoscopic studies. Access and occluding devices may be used to facilitate insertion of working devices such asendoscopes, wires, probes, needles, catheters, balloon catheters, dilation catheters, dilators, balloons, tissue cutting or remodeling devices, suction or irrigation devices, imaging devices, sizing devices, biopsy devices, image-guided devices containing sensors or transmitters, electrosurgical devices, energy emitting devices, devices for injecting diagnostic or therapeutic agents, devices for implanting devices such as stents, substance eluting or delivering devices and implants, etc.
摘要:
Medical device including a lift tool having a distal end configured to removably engage an anatomic layer. The lift tool includes a shaft lumen that extends longitudinally through the lift tool and through the distal end. The shaft lumen is configured to receive an elongated insert device that is movable through the shaft lumen and through the distal end. The medical device also includes a locking mechanism that is coupled to the lift tool. The locking mechanism includes a locking member that is selectively movable with respect to the insert device between a released position and an engaged position. The locking member engages the insert device when in the engaged position to hold the insert device at a fixed position with respect to the lift tool and permits the insert device to move through the shaft lumen when in the released position.
摘要:
An apparatus for deploying a needle within a lumen is provided. The apparatus includes a housing having a threaded bushing radially disposed therein. The bushing rigidly couples with a nose cone having a guide tip disposed at an end opposite the bushing for penetrating an arterial wall of a lumen. During operation, a user incrementally advances the bushing within the housing, thereby incrementally advancing the guide tip into the lumen. The nose cone also includes a flex guide having a slot configuration which couples with the guide tip which deploys into the lumen along with the guide tip.
摘要:
A composition for reconstruction, replacement or repair of damaged or diseased biological tissue comprising an extracellular matrix (ECM) composition that includes an ECM scaffold component derived from a mammalian source and at least one additional bioactive component selected from the group consisting of a statin and a chitin derivative.
摘要:
The invention presents methods and systems for accessing a pericardial space and preventing strokes arising from a left atrial appendage (“LAA”) by achieving a complete occlusion of the LAA using an epicardial approach without creating a puckering of the LAA ostium. A complete occlusion of the LAA is desired because bleeding arising from the LAA often leads to embolic strokes. Due to the peculiar anatomy of the LAA ostium, traditional LAA ligation techniques using sutures can lead to puckering, thus compromising the occlusion of the LAA. The invention achieves a complete occlusion and a more effective hemostatic seal with the use of inflatable balloons having electromagnetic coils internally, as well as hydrogels, sponges, and caliber tubes attached to the respective balloon's exterior, anchoring balloons, a closure device having a suture looped through two semi-rigid hollow tube that can be coated with hydrogel or silicone, and locking mechanisms.
摘要:
The devices and method described herein allow for therapeutic damage to increase volume in these hyperdynamic hearts to allow improved physiology and ventricular filling and to reduce diastolic filling pressure by making the ventricle less stiff. For example, improving a diastolic heart function in a heart by creating at least one incision in cardiac muscle forming an interior heart wall of the interior chamber where the at least one incision extends into one or more layers of the interior heart wall without puncturing through the interior heart wall and the incision is sufficient to reduce a stiffness of the interior chamber to increase volume of the chamber and reduce diastolic filing pressure.
摘要:
Endoscopic cannulas and methods of their use are disclosed. In some embodiments, an endoscopic cannula may include an elongated body having a proximal end and a distal end. A viewing channel and a working channel may extend through the elongated body. The viewing channel can be configured for passing therethrough an endoscope to the distal end of the elongated body for viewing outside the elongated body, while the working channel can be configured for passing therethrough an injection needle distally of the elongated body. The cannula may also include a suction pod disposed on a bottom surface of the elongated member, the suction pod being in communication with a suction channel extending through the elongated body to create suction between the suction pod and a tissue surface to temporary attach the elongated body to the tissue surface.
摘要:
Devices, systems, and methods for treating a heart of a patient may make use of one or more implant structures which limit a size of a chamber of the heart, such as by deploying a tensile member to bring a wall of the heart toward (optionally into contact with) a septum of the heart.
摘要:
Apparatus, systems, and methods for forming a hole in biological material, such as tissue walls, adjacent vessels or adjacent regions of an organ such that access to opposing surfaces of the biological material can be achieved. In general overview the system may include an elongate member for positioning and deploying a flexible member in the heart. In one embodiment apparatus and methods are provided for aligning and fixing the position of the tip of a cutting member for cutting a hole in the septal wall of a heart. In another embodiment, subsequent to cutting a tissue wall an apparatus for obstructing holes in the septal wall is inserted to limit the flow of blood through a plurality of holes in a tissue wall.
摘要:
Disposable loading units (DLUs) configured for mounting to a robotic arm for performing at least one surgical task are presented. Each DLU includes an attachment platform having at least one connector for engaging at least one connector on a distal end of the robotic arm for connecting the DLU to the robotic arm, a head portion connected to the attachment platform at one end and configured for housing an electromechanical actuation assembly therein, and at least one surgical tool member extending from the head portion and operatively associated with the electromechanical actuation assembly for controlling the operation and movement of the at least one surgical tool member. The at least one surgical tool member may include a cutting assembly, an aortic hole punch assembly, a lasing assembly, a coring assembly, or a vascular suturing assembly.