MICRONEEDLE ROLLER
First Claim
1. A microneedle roller comprising:
- a) a plurality of discs, each of which comprises a first side surface, a second side surface and a center hole, wherein the first side surface comprises a plurality of radial grooves, wherein the discs are stacked on one another in a way that the first side surface of one disc contacts the second side surface of the adjacent disc;
b) a plurality of microneedles that are received in the radial grooves of the disc, and each of which has a pointed end, wherein the pointed end protrudes beyond the outer circumference of the disc;
c) an axis shaft that passes thorough the center holes of the stacked discs; and
d) a handle that detachably supports both ends of the axis shaft;
wherein the pointed end of the microneedle is rounded.
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Accused Products
Abstract
A microneedle roller includes a plurality of discs, each of which comprises a first side surface, a second side surface and a center hole. The first side surface comprises a plurality of radial grooves, and the discs are stacked on one another in a way that the first side surface of one disc contacts the second side surface of the adjacent disc. The microneedle roller further includes a plurality of microneedles that are received in the radial grooves of the disc, and each of which has a pointed end. The pointed end protrudes beyond the outer circumference of the disc. The microneedle comprises an elongated cylindrical needle shank, a first sloped portion that starts from the pointed end, and a second sloped portion that is provided between the first sloped portion and the second sloped portion. The angle of the first sloped portion is greater.
30 Citations
9 Claims
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1. A microneedle roller comprising:
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a) a plurality of discs, each of which comprises a first side surface, a second side surface and a center hole, wherein the first side surface comprises a plurality of radial grooves, wherein the discs are stacked on one another in a way that the first side surface of one disc contacts the second side surface of the adjacent disc; b) a plurality of microneedles that are received in the radial grooves of the disc, and each of which has a pointed end, wherein the pointed end protrudes beyond the outer circumference of the disc; c) an axis shaft that passes thorough the center holes of the stacked discs; and d) a handle that detachably supports both ends of the axis shaft; wherein the pointed end of the microneedle is rounded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification