Orifice device for delivering drugs at low fluid flow rates
First Claim
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1. An orifice device for delivering a drug comprising:
- an inner member having a proximal end and a distal end;
a winding helically wound around the inner member, wherein the winding comprises a wire and wherein the wire has a width ranging from 0.001-0.050 inches;
the exterior surface of the winding and the inner member defining a first channel having a helical flowpath following the curvature of the winding for carrying a drug therethrough and an inlet at the proximal end of the winding and an outlet at the distal end of the winding;
a first drug carrying path defined by a first inlet at the proximal end of the winding, the first channel having a helical flowpath following the curvature of the winding, and a first outlet at the distal end of the winding;
an outer member over the winding, wherein the exterior surface of the winding and the outer member define a second channel having a helical flow path following the curvature of the winding for carrying a drug therethrough; and
a second drug carrying path defined by a second inlet at the proximal end of the winding, the second channel having a helical flowpath following the curvature of the winding, and a second outlet at the distal end of the winding, wherein the first and second drug carrying paths are capable of delivering two separate drugs.
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Abstract
An orifice device for delivering a drug includes an inner member having a proximal end and a distal end. A winding is helically wound around the inner member. The winding and the inner member define a first channel for carrying a drug therethrough. An inlet is at the proximal end of the winding and an outlet is at the distal end of the winding.
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Citations
18 Claims
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1. An orifice device for delivering a drug comprising:
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an inner member having a proximal end and a distal end; a winding helically wound around the inner member, wherein the winding comprises a wire and wherein the wire has a width ranging from 0.001-0.050 inches; the exterior surface of the winding and the inner member defining a first channel having a helical flowpath following the curvature of the winding for carrying a drug therethrough and an inlet at the proximal end of the winding and an outlet at the distal end of the winding; a first drug carrying path defined by a first inlet at the proximal end of the winding, the first channel having a helical flowpath following the curvature of the winding, and a first outlet at the distal end of the winding; an outer member over the winding, wherein the exterior surface of the winding and the outer member define a second channel having a helical flow path following the curvature of the winding for carrying a drug therethrough; and a second drug carrying path defined by a second inlet at the proximal end of the winding, the second channel having a helical flowpath following the curvature of the winding, and a second outlet at the distal end of the winding, wherein the first and second drug carrying paths are capable of delivering two separate drugs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An implantable drug delivery device comprising:
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an inner member having a proximal end and a distal end; a winding helically wound around the inner member, wherein the winding comprises a wire and wherein the wire has a width ranging from 0.001-0.050 inches; the exterior surface of the winding and the inner member defining a first channel having a helical flowpath following the curvature of the winding for carrying a drug therethrough and an inlet at the proximal end of the winding and an outlet at the distal end of the winding; a first drug carrying path defined by a first inlet at the proximal end of the winding, the first channel having a helical flowpath following the curvature of the winding, and a first outlet at the distal end of the winding; an outer member over the winding, wherein the exterior surface of the winding and the outer member define a second channel having a helical flow path following the curvature of the winding for carrying a drug therethrough; a second drug carrying path defined by a second inlet at the proximal end of the winding, the second channel having a helical flowpath following the curvature of the winding, and a second outlet at the distal end of the winding, wherein the first and second drug carrying paths are capable of delivering two separate drugs; and a housing. - View Dependent Claims (15, 16, 17, 18)
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Specification