摘要:
A multi-station hydrodynamic catheter includes an outer catheter having a first lumen, the outer catheter having a plurality of orifice stations positioned along a portion of the outer catheter, where each orifice station includes one or more orifices extending from an outer catheter external surface to the first lumen. The multi-station hydrodynamic catheter includes an inner catheter having a second lumen, the inner catheter movable within the first lumen and includes at least one emanator, where the at least one emanator includes one or more fluid delivery ports extending from an inner catheter external surface to the second lumen.
摘要:
An injector system including a docking station and a cassette and various transfer devices for transferring fluid from a bulk fluid container to a reservoir in the cassette are described herein along with methods for using such devices and systems to inject fluid from the bulk fluid container into a patient.
摘要:
Interventional catheter assemblies and components providing improved operational control of interventional catheters and/or operating heads of interventional catheters are provided. In general, controllers incorporate at least two operator selectable control features for controlling operation of the interventional catheter and/or an operating head, and are housed independently of the interventional catheter operating systems and other control systems, which may be provided in a housing located or locatable at a proximal region of the interventional catheter. The controller may be both dockable in and removable from the housing, and is operable in both a docked condition and a removed condition, providing flexibility and mobility in operational control during an interventional procedure.
摘要:
A fluid delivery system for use in medical procedures includes multiple fluid pump devices to deliver multiple injection fluids to a patient. The system includes a control unit controlling the fluid pump devices. An interactive visual display may be provided and electronically linked to the control unit so a user may select discrete mixture ratios of the first and the second of the multiple injection fluids to be delivered to the patient. A manual control device is operatively associated with the fluid pump devices and includes a housing and an actuator associated with the housing. Actuation of the actuator controls discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient.
摘要:
Various syringe systems are disclosed. One illustrative syringe system may include a syringe body having a hollow lumen and a distal end. The syringe body may be configured to house a plurality of fluids therein. A first plunger may be positioned in the hollow lumen of the syringe body, forming a first seal with an inner wall of the syringe body, and forming a first compartment between the first plunger and the distal end of the syringe. A second plunger may be positioned proximal to the first plunger in the hollow lumen of the syringe body, forming a second seal with the inner wall of the syringe body, and forming a second compartment between the first plunger and the second plunger. A plurality of recesses may be disposed about the inner wall of the syringe body near the distal end of the syringe body.
摘要:
Methods and systems for dispensing a radionuclide are disclosed. A processor may receive one or more physiological signals for a patient from one or more physiological parameter sensors. The processor may compare the physiological signals with one or more threshold values. The processor may cause an injector device to dispense the radionuclide in response to the one or more physiological signals meeting or exceeding the one or more threshold values. The threshold values may be determined at least in part based on one or more characteristics of the patient.
摘要:
Interventional catheter assemblies that operate over a guide wire are disclosed. Specifically, an elongated flexible catheter is associated at its proximal end with a housing having a guide wire port where the guide wire exits the housing. The housing additionally incorporates a guide wire brake mounted within a slot positioned a distance from the guide wire port for engaging and releasing a guide wire. The slot is generally arranged at an angle to the path of the guide wire as it exits the guide wire port. When the guide wire is clamped in the angled slot, variable lengths of exposed guide wire accumulate in a substantially unrestrained condition when the flexible catheter is advanced and retracted relative to the guide wire, allowing movement of the distal end of the catheter over considerable distances without repositioning and re-clamping the proximal end of the guide wire.
摘要:
A thrombectomy catheter includes a catheter body extending from a catheter proximal portion to a catheter distal portion and including a catheter intermediate portion, the catheter body includes an aspiration lumen and an infusion lumen extending along the catheter body, wherein the aspiration lumen includes an aspiration orifice open at a distal end of the catheter body.
摘要:
Methods and systems for monitoring an automated radiopharmaceutical infusion apparatus are disclosed. A user interface graphically representing infusion apparatus components may be presented on a display device. Multiple sensors may be arranged within an infusion apparatus to measure property information associated with infusion apparatus components, including fluid pathways. The property information may include radioactivity and flow information. The property information may be compared with expected results. If the property information does not match the expected results, a fault condition may be indicated on the display device. The user interface may provide information and/or functions to manage the fault conditions.
摘要:
A fluid delivery system is provided and includes a power injector supporting a high pressure syringe. The fluid delivery system further includes a manifold and a low pressure hand-operated syringe. The manifold generally includes a plurality of fluid control valves in series fluid communication. A first fluid control valve of the plurality of fluid control valves has a first port, a second inlet port, and a third port. The third port of the first fluid control valve is in fluid connection with a first port of a second fluid control valve. The low pressure hand-operated syringe is in fluid connection with the first port of the first fluid control valve, and the high pressure syringe is in fluid connection with the second port of the first fluid control valve. The fluid control valves may be multi-position stopcock valves.