摘要:
The disclosed systems and methods make derivatives contracts based on an underlying virtual currency available for trading. Certain derivatives contracts have a settlement value based on the transaction fees associated with recording and/or performing transactions for the selected virtual currency. The contracts can be used, for example, by virtual currency miners against certain risks associated with mining virtual currency.
摘要:
Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.
摘要:
A system for removing an obstruction from a blood vessel includes an obstruction engaging element and an expandable capture element. The capture element preferably has a flexible cover and an expandable support structure. The engaging element engages the obstruction and moves the obstruction into the capture element. The capture element protects the obstruction when the obstruction is moved into the catheter.
摘要:
Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.
摘要:
Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.
摘要:
Described herein are nasal respiratory devices, in particular, nasal respiratory devices configured to achieve positive end-expiratory pressure (PEEP) in a subject wearing the device. PEEP devices may have a threshold pressure for opening during expiration. In some variations, these devices have a threshold pressure for closing during expiration.
摘要:
Described herein are nasal respiratory devices and methods for treating a variety of medical diseases including snoring and sleep apnea through the use of such devices. In general, these devices include an airflow resistor, such as a flap valve and a holdfast for securing the device in communication with the subject's nasal cavity. The devices may be configured to include leak paths to regulate the expiratory pressure when worn by a subject. Methods for using these devices may include securing a device over or at least partially within (or both of) a subject's nasal cavities.
摘要:
Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.
摘要:
Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.