초록 ▼

A device for withdrawing or delivering a substance through the skin of a patient includes a body and a skin penetrating device having a plurality of skin penetrating members, such microneedles. The body includes a bottom surface having a first inner surface area supporting the skin penetrating membe

A device for withdrawing or delivering a substance through the skin of a patient includes a body and a skin penetrating device having a plurality of skin penetrating members, such microneedles. The body includes a bottom surface having a first inner surface area supporting the skin penetrating members and a second outer surface having an adhesive for attaching the device to the skin. In one embodiment, the firs inner surface is spaced outwardly from the second outer surface when the device is attached to the skin. The inner surface can have a textured visually wettable surface, such as an etched surface, to provide a visual indication of leakage from the interface between the skin penetrating members and the skin.

대표청구항 ▼

A device for withdrawing or delivering a substance through the skin of a patient includes a body and a skin penetrating device having a plurality of skin penetrating members, such microneedles. The body includes a bottom surface having a first inner surface area supporting the skin penetrating membe

A device for withdrawing or delivering a substance through the skin of a patient includes a body and a skin penetrating device having a plurality of skin penetrating members, such microneedles. The body includes a bottom surface having a first inner surface area supporting the skin penetrating members and a second outer surface having an adhesive for attaching the device to the skin. In one embodiment, the firs inner surface is spaced outwardly from the second outer surface when the device is attached to the skin. The inner surface can have a textured visually wettable surface, such as an etched surface, to provide a visual indication of leakage from the interface between the skin penetrating members and the skin. ally linear configuration. 6. A catheter for delivering a substance, comprising: a catheter body having a proximate section and a distal section; a first arm having a first end and a second end; a second arm having a first end and a second end, the first end of the second arm tending from the second end of the first arm, wherein the first arm and the second arm are capable of bending from a generally linear configuration relative to each other to an angular configuration at the juncture where the second arm extends from the first arm; and a needle supported by the distal section of the catheter body and extending out from the second end of the first arm for delivering a substance, wherein the needle has a first position substantially parallel to the longitudinal axis of the distal section of the catheter body and is configured to move away from the axis of the catheter body to a second position in response to the bending of the first arm and the second arm. 7. The catheter of claim 6, wherein the first end of the second arm includes a recess for receiving the needle when the first and second arms are in the generally linear configuration. 8. The catheter of claim 6, wherein the first arm comprises: a hollow tubular body in fluid communication with the needle for allowing the substance to be delivered to the needle; and a stiffening element extending at least partially along the hollow tubular body for providing rigidity to the hollow tubular body. 9. The catheter of claim 6, wherein the second end of the second arm is coupled to a distal section of the catheter and is configured to bend towards and away from the catheter in response to the bending of the first arm with respect to the second arm. 10. The catheter of claim 6, additionally including a lumen extending at least partially along the catheter and in fluid communication with the first arm, wherein the lumen is adapted to be moved towards and away from a distal end of the catheter for causing the bending movement of the first arm with respect to the second arm. 11. The catheter of claim 6, wherein the first arm has a first position substantially parallel with the longitudinal axis of the catheter. 12. A medical device comprising: a catheter having a proximate section and a distal section; a first member positioned along the catheter and capable of moving towards and away from the distal section of the catheter, the first member including a first section and a second section, the second section capable of bending with respect to the first section in response to the motion of the first member towards and away from the distal section; a second member supported at a first end by the distal section of the catheter and extending at a second end from the second section of the first member, the second member capable of bending at the first end with respect to the catheter and at the second end with respect to the first member; a delivery element for delivering a therapeutic substance to an inner wall of a vessel, wherein the delivery element has a first position substantially parallel to the longitudinal axis of the distal section of the catheter and is configured to move away from the axis of the catheter to a second position in response to the bending of the first member with respect to the second member; wherein the delivery element is contacting or penetrating the inner wall of the vessel at the second position; and wherein the delivery element has an axis and wherein the axis of the delivery element at the second position is about 45° from the axis of the catheter. 13. A medical device comprising: a catheter having a proximate section and a distal section; a first member positioned along the catheter and capable of moving towards and away from the distal section of the catheter, the first member including a first section and a second section, the second section capable of bending with respect to the first section in response to the motion of th e first member towards and away from the distal section; a second member supported at a first end by the distal section of the catheter and extending at a second end from the second section of the first member, the second member capable of bending at the first end with respect to the catheter and at the second end with respect to the first member; a delivery element for delivering a therapeutic substance to an inner wall of a vessel, wherein the delivery element has a first position substantially parallel to the longitudinal axis of the distal section of the catheter and is configured to move away from the axis of the catheter to a second position in response to the bending of the first member with respect to the second member; and wherein the first section of the first member comprises a needle, the needle having a first position substantially parallel to the longitudinal axis of the second section of the first member. 14. A medical device comprising: a catheter having a proximate section and a distal section; a first member positioned along the catheter, the first member including a first section and a second section, the first section capable of sliding longitudinally along the catheter towards and away from the distal section of the catheter, and the second section capable of pivoting with respect to the first section at a pivoting point in response to the motion of the first section towards and away from the distal section; a second member supported at a first end by the distal section of the catheter and extending at a second end from the second section of the first member, the second member capable of pivoting at the first end at a pivoting point with respect to the catheter and at the second end with respect to the first member; and a needle for delivering a therapeutic substance to an inner wall of a vessel, wherein the needle is configured to penetrate the inner wall of the vessel in response to the pivoting of the first member with respect to the second member. 15. The medical device of claim 14, wherein the first section and the second section of the first member are substantially linear.