# US 10,945,754 B2 · Ultrasound device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,945,754 B2 - Document ID: US10945754B2 - Status: Granted - Kind: B2 - Application number: 16/396,261 - Filed: 2019-04-26 - Published: 2019-08-15 - Granted: 2021-03-16 - Earliest claimed: 2016-10-28 - Assignees: Olympus Corporation - Applicants: Olympus Corporation - Inventors: Ken Fujisaki; Takamitsu Sakamoto; Michio Takayama; Hideto Yoshimine; Ken Yokoyama; Ryo Miyasaka - Web page: https://patentgrep.com/patent/US10945754B2 ## CPC - A61B 17/320068: {using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745)} - A61B 17/16: Instruments for performing osteoclasis; Drills or chisels for bones; Trepans {(arthroscopic bone cutters A61B17/320016)} - A61B 17/1631: {Special drive shafts, e.g. flexible shafts (A61B17/1642, A61B17/164 take precedence)} - A61B 2017/320073: {probe} - A61B 2017/320078: {Tissue manipulating surface} - A61B 2217/007: with irrigation system - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An ultrasound device includes: an ultrasound generator; an ultrasound probe; and a distal end treatment portion capable of forming a bone hole when pressed against a bone. The distal end treatment portion includes a base portion, and a distal end portion. The distal end portion includes projections and a valley portion between adjacent projections. Each projection is formed of at least one excision surface that is inclined from a base of the projection to a distal top of the projection. The excision surface is capable of finely crushing the bone. The valley portion includes a valley peak at a distal-most meeting point of adjacent projections such that a surface of the valley extending distally from a point at which the valley meets an outer surface of the base portion to the valley peak is inclined. ## Claims ### Claim 1 An ultrasound device comprising: an ultrasound generator configured to generate ultrasound vibrations; and an ultrasound probe that is acoustically connected, on a proximal end side, to the ultrasound generator, and is configured to transmit the ultrasound vibrations, the ultrasound probe including, on a distal end side, a distal end treatment portion including: a base portion disposed on a proximal end side of the distal end treatment portion, the distal end treatment portion being configured to form a bone hole having a cross-sectional shape identical to that of the base portion, and a distal end portion disposed on a distal side of the base portion, the distal end portion including a plurality of projections arranged in a row, each projection being formed of at least one excision surface that is inclined from a base of the projection to a distal top of the projection, the at least one excision surface being configured to finely crush the bone, wherein: adjacent projections are adjoined to one another by a valley formed therebetween, and the valley includes a valley peak at a distal-most meeting point of the adjacent projections such that a surface of the valley extending distally from a point at which the valley meets an outer surface of the base portion to the valley peak is inclined; wherein the plurality of projections protrude in a direction of a longitudinal axis of the distal end treatment portion. ### Claim 2 (depends on 1) The ultrasound device according to claim 1, wherein a cross-sectional area of the base portion of the distal end treatment portion is greater than a cross-sectional area of a probe main body portion connected to the proximal end side of the distal end treatment portion. ### Claim 3 (depends on 1) The ultrasound device according to claim 1, wherein the distal end treatment portion comprises a flat outer surface, a curved outer surface, or a combination of a flat outer surface and a curved outer surface. ### Claim 4 (depends on 1) The ultrasound device according to claim 1, wherein a surface of the distal end treatment portion includes irregularities formed by a blasting process or a mechanical polishing process. ### Claim 5 (depends on 1) The ultrasound device according to claim 1, wherein the valley peak is disposed at a central point between the adjacent projections. ### Claim 6 (depends on 2) The ultrasound device according to claim 2, wherein a proximal end side the base portion is tapered in a direction toward the probe main body portion. ### Claim 7 (depends on 1) The ultrasound device according to claim 1, wherein a shape of the distal end treatment portion is not a perfect circular shape. ### Claim 8 (depends on 1) The ultrasound device according to claim 1, wherein the distal end treatment portion does not comprise a fluid channel for discharging cutting debris. ### Claim 9 (depends on 1) The ultrasound device according to claim 1, wherein the excision surface of at least one projection is curved. ### Claim 10 (depends on 9) The ultrasound device according to claim 9, wherein each excision surface is curved. ### Claim 11 (depends on 1) The ultrasound device according to claim 1, wherein each projection comprises: an edge line extending proximally from the top of the projection to the valley peak to connect the top of the projection to the valley, and a ridge line extending proximally from the top of the projection to an outer surface of the base portion. ### Claim 12 (depends on 11) The ultrasound device according to claim 11, wherein each projection comprises: a plurality of excision surfaces that extend from the edge line and the ridge line in a direction orthogonal to the edge line and the ridge line toward a proximal end side and toward an outer surface of the base portion. ### Claim 13 (depends on 12) The ultrasound device according to claim 12, wherein the plurality of excision surfaces are flat surfaces. ### Claim 14 (depends on 13) The ultrasound device according to claim 13, wherein the valley is formed at a position in which two excision surfaces of one projection are joined with two excision surfaces of a second adjacent projection. ### Claim 15 (depends on 1) The ultrasound device according to claim 1, wherein the base portion comprises a plurality of convex protrusions arranged in a groove having a mesh pattern. ### Claim 16 (depends on 1) The ultrasound device according to claim 1, wherein each projection has a conical shape. ### Claim 17 (depends on 1) The ultrasound device according to claim 1, wherein an outer surface of the distal end treatment portion is tapered in a direction from a proximal end to a distal end. ### Claim 18 (depends on 1) The ultrasound device according to claim 1, wherein the distal end treatment portion includes two projections. ### Claim 19 (depends on 1) The ultrasound device according to claim 1, wherein the distal end treatment portion includes three projections.