Method, system and device for delivering a substance to tissue
First Claim
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1. A device for delivering substance to tissue comprising:
- a delivery tube having proximal and distal ends;
a chamber in fluid connection with said delivery tube for containing the substance to be delivered to the tissue;
a plurality of needles having tips in fluid communication with said chamber;
a plunger coupled to a handle at the proximal end of said delivery tube, said plunger capable of being positioned within said delivery tube and movable relative thereto for delivering the substance through said needles; and
a protector having at least one orifice therein, such that when said device is in a retracted position the tips of said needles are on a first side of a distal end of said protector, and when said device is in an extended position the tips of said needles protrude through the at least one orifice to a second side of the distal end of said protector, the second side being opposite the first side.
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Abstract
Devices and methods for delivering a substance to tissue or organs, particularly, the bladder, by a plurality of microneedles The devices may include a delivery tube, a a substance chamber to fill with the substance to be delivered, a plurality of needles, a plunger coupled to a handle movable relative to the tube to deliver the substance to the tissue through the needles, and a protective plate having at least one orifice therein, such that when the device is in a first, resting, position the needle tips are on a first side of the protective plate, and when the device is in a second, operational, position, the needles are on a second side of the protective plate.
210 Citations
36 Claims
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1. A device for delivering substance to tissue comprising:
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a delivery tube having proximal and distal ends;
a chamber in fluid connection with said delivery tube for containing the substance to be delivered to the tissue;
a plurality of needles having tips in fluid communication with said chamber;
a plunger coupled to a handle at the proximal end of said delivery tube, said plunger capable of being positioned within said delivery tube and movable relative thereto for delivering the substance through said needles; and
a protector having at least one orifice therein, such that when said device is in a retracted position the tips of said needles are on a first side of a distal end of said protector, and when said device is in an extended position the tips of said needles protrude through the at least one orifice to a second side of the distal end of said protector, the second side being opposite the first side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification