Microcatheter and method for site specific therapy
First Claim
1. An apparatus for performing site specific microtherapy comprising a pump reservoir and one or more microcatheters dimensioned to be positioned within a tissue site for selectively removing fluids by microdialysis from the tissue site, the microcatheter(s) being adapted for fluid communication with the pump reservoir to effect the recovery of fluid, the apparatus further comprising a delivery sheath adapted to be positioned into the tissue site, the microcatheter assembly adapted to be positioned within the delivery sheath, the delivery sheath having walls sufficiently permeable to permit a desired flow of fluids between the tissue and the microcatheter assembly in the course of microdialysis.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus having a pump reservoir and one or more microcatheters, for use in delivering and/or recovering fluid to and/or from a tissue site or for performing tissue engineering outside of the body. The apparatus can be used in a method to perform site specific microtherapy, including for the treatment of avascular necrosis, compartment syndrome, cerebral edema, and to improve skin flap survival in the course of reconstructive surgery.
-
Citations
21 Claims
- 1. An apparatus for performing site specific microtherapy comprising a pump reservoir and one or more microcatheters dimensioned to be positioned within a tissue site for selectively removing fluids by microdialysis from the tissue site, the microcatheter(s) being adapted for fluid communication with the pump reservoir to effect the recovery of fluid, the apparatus further comprising a delivery sheath adapted to be positioned into the tissue site, the microcatheter assembly adapted to be positioned within the delivery sheath, the delivery sheath having walls sufficiently permeable to permit a desired flow of fluids between the tissue and the microcatheter assembly in the course of microdialysis.
-
15. A method of performing site specific microdialysis, the method comprising the steps of:
-
a) providing an apparatus comprising one or more microcatheters dimensioned to be positioned within a tissue site for selectively removing fluids by microdialysis from the tissue site, the microcatheter(s) being adapted for fluid communication with a reservoir component for the recovery of fluid, the apparatus further comprising a delivery sheath adapted to be positioned into the tissue site, the microcatheter assembly adapted to be positioned within the delivery sheath, the delivery sheath having walls sufficiently permeable to permit a desired flow of fluids between the tissue and the microcatheter assembly in the course of microdialysis b) positioning the delivery sheath and microcatheter assembly of the apparatus within a tissue site, and c) employing the apparatus to selectively remove fluid by microdialysis from the tissue site. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
Specification