# US 8,540,731 B2 · Skin treating device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,540,731 B2 - Document ID: US8540731B2 - Status: Granted - Kind: B2 - Application number: 13/120,668 - Filed: 2009-09-28 - Published: 2012-01-19 - Granted: 2013-09-24 - Earliest claimed: 2008-09-29 - Assignees: LRC Products Limited - Applicants: Peter Kay; Libby Marshall; Clive Southernwood - Inventors: Peter Kay; Libby Marshall; Clive Southernwood - Web page: https://patentgrep.com/patent/US8540731B2 ## CPC - A61B 17/54: Chiropodists' instruments {, e.g. pedicure} - A61B 2017/00747: {Dermatology} - A61B 2017/320008: {Scrapers} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A hand held device for removing hard skin from calluses comprises a handle (1) and a cutting head (2) having a base plate (8), and several tubular cutting elements (10) inclined so that their cutting edges lie in inclined planes at an angle of 5° to 45° to a skin contact plane defined by the extremities of the cutting elements. The cutting elements can be arranged in an array of staggered rows. ## Claims ### Claim 1 A hand-held hard skin removing device for removing hard skin comprising a handle portion and a cutting head connected firmly to the handle portion to be moved across a skin surface thereby, the cutting head comprising a base, and at least two cutting elements projecting from the base and each defining a respective substantially annular cutting edge for contact with a skin surface to be treated, wherein the cutting elements are spaced apart from each other, and each cutting edge lies in a plane inclined to a skin contact plane containing the extremities of the cutting elements, wherein the base comprises a base plate having at least two sockets into which the cutting elements are disposed, and the axes of the sockets are parallel to each other and inclined with respect to a perpendicular to the plane of the base plate. ### Claim 2 (depends on 1) A hand-held device according to claim 1, wherein the inclined plane is at an angle in the range of from 5° to 45° to the skin contact plane. ### Claim 3 (depends on 1) A hand-held device according to claim 1, wherein the cutting elements are tubular. ### Claim 4 (depends on 3) A hand-held device according to claim 3, wherein the cutting elements are right circular cylindrical tubes, and the cutting edge of each cutting element lies in a plane perpendicular to the axis of the cutting element. ### Claim 5 (depends on 1) A hand-held device according to claim 1, wherein the cutting elements project from the base along parallel axes. ### Claim 6 (depends on 1) A hand-held device according to claim 1, wherein there are three or more cutting elements positioned in a staggered array. ### Claim 7 (depends on 6) A hand-held device according to claim 6, wherein the cutting elements are arranged in at least two rows extending transversely to a movement direction, the cutting elements in one row being staggered with respect to the cutting elements of another row. ### Claim 8 (depends on 7) A hand-held device according to claim 7, wherein there are at least eight cutting elements arranged in at least three rows. ### Claim 9 (depends on 7) A hand-held device according to claim 7, wherein a first row includes at least four cutting elements, a second row includes at least three cutting elements and a third row includes at least one cutting element. ### Claim 10 (depends on 7) A hand-held device according to claim 7, wherein the cutting elements of at least one row are spaced apart along a curved line. ### Claim 11 (depends on 7) A hand-held device according to claim 7, wherein the base has a front in proximity to the handle, and a rear distal the handle, the numbers of cutting elements in successive rows reducing from front to rear of the base. ### Claim 12 (depends on 1) A hand-held device according to claim 1, wherein the base comprises a base plate to which the cutting elements are fixed. ### Claim 13 (depends on 12) A hand-held device according to claim 12, wherein the base plate has sockets into which the respective cutting elements are inserted. ### Claim 14 (depends on 13) A hand-held device according to claim 13, wherein the sockets have inner ends that are open to a cavity within the device. ### Claim 15 (depends on 14) A hand-held device according to claim 14, wherein the cavity is open to the exterior of the device. ### Claim 16 (depends on 15) A hand-held device according to claim 15, wherein the cavity is formed by a lateral through opening in the device. ### Claim 17 (depends on 1) A hand-held device according to claim 1, wherein the handle portion is elongated. ### Claim 18 (depends on 17) A hand-held device according to claim 17, wherein the handle portion has an axis substantially parallel to a skin contact plane defined by the extremities of the cutting elements. ### Claim 19 (depends on 1) A hand-held device according to claim 1, wherein the inclined plane is at an angle in the range of from 10° to 25° to the skin contact plane. ### Claim 20 (depends on 1) A hand-held device to claim 1, wherein there are five or more cutting elements positioned in a staggered array. ### Claim 21 (depends on 1) A hand-held device according to claim 1, wherein the cutting elements are right circular cylindrical tubes having a diameter of 3 mm to 5 mm.