Methods of performing a power injection procedure including identifying features of a subcutaneously implanted access port for delivery of contrast media
AssigneeC. R. Bard, Inc.
InventorsKelly B. Powers, Jim C. Beasley, Kevin W. Sheetz, Jay Gerondale, Guy Rome
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Abstract
Methods of performing a power injection procedure are described. One method includes taking an x-ray of a subcutaneously implanted access port in a patient to determine whether the access port includes a radiographic feature indicating that the access port is suitable for flowing fluid at a rate of at least about 1 milliliter per second through the access port, identifying the indicating radiographic feature on the x-ray, and flowing a fluid through the access port at a rate of at least about 1 milliliter per second.
Claims14
A method of performing a power injection procedure, comprising:
- taking an x-ray of a subcutaneously implanted access port in a patient to determine whether the access port includes a radiographic feature indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port, the access port defining one or more fluid reservoirs, each fluid reservoir accessible through a cannula-penetrable septum;
- identifying the indicating radiographic feature on the x-ray;
- and
- flowing a fluid through the access port at a rate of at least 1 milliliter per second.
A method of performing a power injection procedure, comprising:
- providing an access port including a cannula-impenetrable housing and a radiographic feature indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port;
- implanting the access port in a subcutaneous pocket formed under a patient's skin;
- taking an image of the implanted access port via imaging technology;
- identifying the access port as being suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port via the image of the radiographic feature of the access port;
- and
- injecting contrast media fluid through the access port at a rate of at least 1 milliliter per second.
A method of performing a power injection procedure, comprising:
- implanting an access port including a fluid reservoir accessible through a septum and a radiographic feature, the radiographic feature indicating that the access port is capable of handling pressures associated with power injection;
- taking an image of the implanted access port via imaging technology;
- identifying the access port as capable of handling pressures associated with power injection via the image of the radiographic feature of the access port;
- palpating the access port to identify the location of the septum;
- inserting a needle through a septum, the needle connected to tubing and in fluid communication therewith, the needle and tubing structured to accommodate a fluid pressure of at least 400 psi;
- and
- injecting contrast media fluid through the tubing and needle to induce a pressure within the access port in the range of 37 psi and 65 psi.
Dependencies are inferred from the claim text.