Therapeutic agents for delivery using a catheter and pressure source
The present embodiments provide systems and methods suitable for delivering a therapeutic agent to a target site. A container holds the therapeutic agent and a pressure source has pressurized fluid in selective fluid communication with at least a portion of the container. A catheter, in fluid communication with the container, has a lumen sized for delivery of the therapeutic agent to a target site. In one embodiment, a diameter of particles of the therapeutic agent is in a range of between about 1 micron to about 925 microns, a mass of the particles of the therapeutic agent is in a range of between about 0.0001 mg to about 0.5 mg, a ratio of an inner diameter of the catheter to the diameter of particles is at least 4:1, and a regulated pressure of the pressurized fluid is between about 0.01 psi to about 100 psi.
1. A system suitable for delivering a therapeutic agent to a target site, the system comprising:
a therapeutic agent, the therapeutic agent having one or more particles having a diameter and mass;
a container for holding the therapeutic agent;
pressurized fluid in selective fluid communication with at least a portion of the container;
a catheter in fluid communication with the container and having a lumen sized for delivery of the therapeutic agent to a target site,
wherein a diameter of the one or more particles of the therapeutic agent is in a range of between about 1 micron to about 925 microns, and
wherein the mass of the one or more particles of the therapeutic agent is in a range of between about 0.0001 mg to about 0.5 mg.
2. The system of claim 1 , further comprising a pressure source holding the pressurized fluid, the pressure source being in selective fluid communication with at least a portion of the container.
3. The system of claim 1 , wherein a regulated pressure of the pressurized fluid is between about 0.5 psi to about 75 psi.
4. The system of claim 1 , wherein the pressurized fluid is directed through a first region of the container in a direction towards a second region of the container, and wherein the fluid is at least partially redirected to urge the therapeutic agent in a direction from the second region of the container towards the first region of the container and subsequently towards the target site.
5. The system of claim 4 , wherein, during use, the first region of the container is disposed vertically above the second region of the container.
6. The system of claim 1 , wherein the therapeutic agent comprises a powder.
7. A system suitable for delivering a therapeutic agent to a target site, the system comprising:
a therapeutic agent, the therapeutic agent having one or more particles having a diameter and mass;
a container for holding the therapeutic agent;
pressurized fluid in selective fluid communication with at least a portion of the container;
a catheter in fluid communication with the container and having a lumen sized for delivery of the therapeutic agent to a target site,
wherein the diameter of the one or more particles of the therapeutic agent is in a range of between about 1 micron to about 925 microns,
wherein a ratio of an inner diameter of the catheter to the diameter of the one or more particles when delivered is at least 4:1 and less than or equal to 51:1.
8. The system of claim 7 , wherein the mass of the one or more particles of the therapeutic agent is in a range of between about 0.0001 mg to about 0.5 mg.
9. The system of claim 7 , wherein a regulated pressure of the pressurized fluid is between about 0.01 psi to about 100 psi.