摘要:
A transcutaneous access tool includes a first cannula moveable along an axis, a fixed member including an elongated prong extending parallel with the axis, and a deployment member secured to the first cannula and movable along the axis away from the fixed member. The deployment member includes spaced-apart, resiliently flexible fingers extending parallel with the axis and having distal ends that are laterally enlarged with respect to the axis. The resiliently flexible fingers are received on the prong of the fixed member. A second cannula is disposed within the lumen of the first cannula, and retraction member is secured to the second cannula and is movable along the axis. The retraction member includes at least one catch catching on the laterally enlarged distal ends of the fingers of the deployment element when the fingers are laterally held apart by the prong of the fixed member.
摘要:
A device for delivering fluid to a patient including a passageway having a proximal fluid transport tube, a distal fluid transport tube, and a tubular expansion member coupling the fluid transport tubes. A penetrating member is positioned within the expansion member for axial movement between the fluid transport tubes, and has a sharpened distal tip. The device also includes a dispenser for causing fluid from a reservoir to flow to the proximal fluid transport tube, a housing containing the dispenser and the passageway and including an exit port receiving the distal fluid transport tube, and a connecting member secured to the penetrating member. The connecting member is movable by a user from an exterior of the housing and arranged such that movement causes the penetrating member to move between an extended position for subcutaneously inserting the distal fluid transport tube into a patient, and a retracted position.
摘要:
This invention is methods and apparatus for occluding blood flow within a blood vessel (22). In a first series of embodiments, the present invention comprises a plurality of embolic devices (16) deployable through the lumen (12) of a conventional catheter (10) such that when deployed, said embolic devices (16) remain resident and occlude blood flow at a specific site within the lumen of the blood vessel (22). Such embolic devices (16) comprise either mechanical embolic devices that become embedded within or compress against the lumen of the vessel or chemical vaso occlusive agents that seal off blood flow at a given site. A second embodiment of the present invention comprises utilization of a vacuum/cauterizing device capable of sucking in the lumen of the vessel about the device to maintain the vessel in a closed condition where there is then applied a sufficient amount of energy to cause the tissue collapsed about the device to denature into a closure. In a third series of embodiments, the present invention comprises the combination of an embolization facilitator coupled with the application of an energy force to form an intraluminal closure at a specified site within a vessel.
摘要:
A graft device is provided comprising a flow conduit and a surrounding covering. The graft device is for connecting between a first body space and a second body space. In one embodiment, the flow conduit is a vein, such as a harvested saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. Also provided are methods of preparing a graft device and connecting the graft between a first body space and a second body space, such as the aorta and a location on an occluded coronary artery, distal to the occlusion.
摘要:
A system for providing medical treatment to a patient, including a medical treatment apparatus and a remote control device. The medical treatment apparatus has a local processor, and a local communication element connected to the local processor, while the remote control device includes a remote processor, user interface components connected to the remote processor, and a remote communication element connected to the remote processor and adapted to communicate with the local communication element of the medical treatment apparatus in a wireless manner such that information can be transferred between the local processor and the remote processor. The remote control device also includes at least two separate power supplies connected to the remote processor.
摘要:
A device for delivering fluid to a patient including an exit port assembly adapted to connect to a transcutaneous patient access tool, and a dispenser including at least two laminated layers of material defining a passageway connected to the exit port assembly, and an expandable accumulator in fluid communication with the passageway for controlling fluid flow from a reservoir to the exit port assembly. The laminated construction provides many benefits including simplifying the design and manufacturing of the device, in order to further reduce the size, complexity and costs of the device so that the device lends itself to being small and disposable in nature.
摘要:
Methods, devices and systems wherein a penetrating catheter or other penetrating device is used to penetrate into a target blood vessel, and wherein the target vessel is dilated prior to the penetration so as to improve the imaging, aiming at and/or penetration into the target vessel. In one embodiment, a tissue penetrating catheter device that is useable to penetrate from a blood vessel in which it is positioned to a target vessel comprises a flexible catheter advanceable into the first blood vessel and a tissue penetrator lumen adapted to receive an operative tissue penetrator which is usable to penetrate from the blood vessel to the target vessel when properly aimed. An imaging transducer may be fixedly mounted on or within the penetrating catheter to provide an imaging signal from which an image of the target vessel can be obtained. A target vessel dilating catheter is inserted into the target vessel and used to dilate the target vessel prior to imaging, aiming of the penetrator at and/or puncture thereof. Such vessel dilating catheters may comprise one or more occlusion member(s) (e.g., one or two balloons) to block flow through the target vessel and/or to isolate and pressurize a region of the vessel. Alternatively, the dilating catheter may comprise a dilating member that expands within the target vessel to cause a portion of the target vessel wall to enlarge, stretch, expand, bulge or otherwise dilate.
摘要:
A medical apparatus for the treatment of one or more sleep disorders such as obstructive sleep apnea in a patient is provided. The medical apparatus has an elongate member with a middle portion, a first fixation element and a second fixation element. The middle portion applies a force to a segment of a patient's airway.
摘要:
A medical apparatus for the treatment of one or more sleep disorders such as obstructive sleep apnea in a patient is provided. The apparatus comprises an elongate member with a middle portion, a first fixation element and a second fixation element. The middle portion applies a force to a segment of a patient's airway.
摘要:
A fluid collection drape for use during surgery includes an impermeable liner, a permeable facing, and a substrate sandwiched between the impermeable liner and the permeable facing. The fluid collection drape is provided in a sterile condition and is sized at about 3 feet by 2.5 feet to substantially cover a width of an operating table. The substrate absorbs greater than about 500 cc of fluid. The fluid collection drape is stored in a sterile state within a package. The substrate has a thickness of about 0.05 inch.