# US 2023/0069701 A1 · Fin for collimating therapeutic radiation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0069701 A1 - Document ID: US20230069701A1 - Status: Published application - Kind: A1 - Application number: 17/891,181 - Filed: 2022-08-19 - Published: 2023-03-02 - Earliest claimed: 2021-08-24 - Assignees: Siemens Healthcare GmbH - Applicants: Siemens Healthcare GmbH - Inventors: Olivia NOACK; Sebastian GRAEBNER; Georg WALBERER; Michael LANGGUTH - Web page: https://patentgrep.com/patent/US20230069701A1 ## CPC - A61N 5/1045: {using a multi-leaf collimator, e.g. for intensity modulated radiation therapy or IMRT} - A61N 2005/1092: {Details} - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) ## Abstract One or more example embodiments of the present invention relates to a fin for collimating therapeutic radiation. The fin comprises a collimation area made of a first material and a holding area made of a second material. Herein, the collimation area and the holding area are soldered together. Herein, the first material is formed to collimate therapeutic radiation. Herein, the holding area can be coupled to an adjustment device for adjusting the fin. ## Claims ### Claim 1 A fin for collimating therapeutic radiation comprising: a collimation area including a first material; and a holding area including a second material, wherein the collimation area and the holding area are soldered together, the first material is configured to collimate therapeutic radiation, and the holding area is couplable to an adjustment device for adjusting the fin. ### Claim 2 (depends on 1) The fin as claimed in claim 1, wherein the first material and the second material are hard-soldered together. ### Claim 3 (depends on 1) The fin as claimed in claim 1, wherein the first material and the second material are paramagnetic. ### Claim 4 (depends on 1) The fin as claimed in claim 1, wherein the first material is tungsten or a compound comprising tungsten. ### Claim 5 (depends on 1) The fin as claimed in claim 1, wherein the second material comprises titanium or stainless steel. ### Claim 6 (depends on 1) The fin as claimed in claim 1, wherein the holding area and the collimation area are soldered together with a copper solder, a gold solder, a silver solder or a titanium solder. ### Claim 7 (depends on 1) The fin as claimed in claim 1, wherein the compensating layer is between the first material and the second material, and the compensating layer is formed from a compensating material, the compensating material compensates for a difference in coefficients of thermal expansion of the first material and the second material, respectively. ### Claim 8 (depends on 7) The fin as claimed in claim 7, wherein the compensating layer is formed by a copper plate. ### Claim 9 (depends on 7) The fin as claimed in claim 7, wherein the compensating layer is formed by a net-like element and a solder, and the net-like element includes nickel. ### Claim 10 (depends on 1) The fin as claimed in claim 1, further comprising: a guide element, wherein the guide element is formed by the first material and the second material. ### Claim 11 A collimator comprising: a plurality of fins, each of the plurality of fins including, a collimation area including a first material, and a holding area including a second material, wherein the collimation area and the holding area are soldered together, the first material is configured to collimate therapeutic radiation, and the holding area is couplable to an adjustment device for adjusting the fin; and the adjustment device, wherein the respective holding areas of the fins are coupled to the adjustment device, and the adjustment device is configured to adjust each fin of the plurality of fins perpendicular to a contact surface of the holding area and the collimation area. ### Claim 12 (depends on 1) A method for manufacturing the fin as claimed in claim 1, the method comprising: soldering together a first block including the first material and a second block including the second material to form a combination block. ### Claim 13 (depends on 12) The method as claimed in claim 12, further comprising: cutting out the fin from the combination block by wire erosion. ### Claim 14 (depends on 12) The method as claimed in claim 12, wherein further comprising: milling out at least one side surface of the fin from the combination block. ### Claim 15 (depends on 12) The method as claimed in claim 12, wherein the soldering includes: introducing a compensating layer between the contact surfaces of the first block and the second block. ### Claim 16 (depends on 12) The method as claimed in claim 12, further comprising: at least one of (i) milling out at least one guide element from the combination block, or (ii) milling out a contour of the holding area from the combination block. ### Claim 17 (depends on 2) The fin as claimed in claim 2, wherein the first material and the second material are paramagnetic. ### Claim 18 (depends on 2) The fin as claimed in claim 2, wherein the first material is tungsten or a compound comprising tungsten. ### Claim 19 (depends on 2) The fin as claimed in claim 2, wherein the second material comprises titanium or stainless steel. ### Claim 20 (depends on 3) The fin as claimed in claim 3, wherein the first material is tungsten or a compound comprising tungsten.