DEVICES AND METHODS FOR INJECTING FLUID INTO THE BODY

摘要

Devices are provided for injecting fluid into the body. One such device includes an elongated, hollow cannula having a proximal end portion, a distal end portion, a shaft portion between the proximal and distal end portions, and a fluid flow lumen extending through the shaft portion between the proximal and distal end portions. The distal end portion is flexible and pre-disposed to assume a curved configuration having a radially inner side and a radially outer side. The radially inner side includes at least one aperture to direct fluid flowing from the lumen in a radially inward direction. The device may include an introducer member and /or a guide member for introducing the cannula to a treatment site. Methods of injecting fluid into the body are also provided.