# US 11,298,846 B1 · Cutting device for brachytherapy seed implantation sleeves > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,846 B1 - Document ID: US11298846B1 - Status: Granted - Kind: B1 - Application number: 16/398,090 - Filed: 2019-04-29 - Granted: 2022-04-12 - Earliest claimed: 2017-11-02 - Assignees: IsoRay Medical, Inc. - Applicants: Isoray Medical, Inc. - Inventors: Griffin Hanberg; Donald Stefero; Michael L Krachon; Brian Berry - Web page: https://patentgrep.com/patent/US11298846B1 ## CPC - B26D 3/16: Cutting rods or tubes transversely {(cutting tubes longitudinally B26D3/001)} - A61N 5/1007: {Arrangements or means for the introduction of sources into the body} - B26D 1/08: of the guillotine type - A61N 2005/1009: {Apparatus for loading seeds into magazines or needles} - A61N 2005/101: {Magazines or cartridges for seeds} - A61N 2005/1024: {Seeds} - B26D 3/169: {Hand held tube cutters} - B26D 7/2614: {Means for mounting the cutting member} - B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04) - 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 A device for loading brachytherapy seeds and spacers into a sleeve. The device holds two or more seed or spacer cartridges of different radioactive species and dosage. The user rotates a selector for selecting a desired cartridge and, with each depression of a spring-biased plunger, pushes a seed or spacer into a channel in an inspection area. The process is repeated for the desired number and order of seeds and spacers in sequence to form a strand. The strand can be seen in the channel with the unaided eye through a transparent window. Once the strand is arranged as desired, it is pushed into a sleeve that is held in a removable sleeve holder. If desired, the end portions of the filled sleeve may be cut off using a sleeve cutter to shorten the filled sleeve. The filled sleeve is implanted into patient using a needle. ## Claims ### Claim 1 A device for cutting a brachytherapy sleeve containing pellets, the device comprising: a. a cutter base having a sleeve groove to receive the sleeve; and b. a moveable blade attached to the cutter base wherein the blade moves perpendicularly to the sleeve groove. ### Claim 2 (depends on 1) The device of claim 1 wherein the sleeve groove is elevated above the cutter base. ### Claim 3 (depends on 1) The device of claim 1 wherein the sleeve groove is recessed in the cutter base. ### Claim 4 (depends on 1) The device of claim 1 further comprising a blade-receiving groove in the cutter base to receive the blade, wherein the blade-receiving groove is perpendicular to the sleeve groove. ### Claim 5 (depends on 1) The device of claim 1 further comprising a needle-receiving groove in the cutter base, wherein the needle-receiving groove is co-axial with the sleeve groove. ### Claim 6 (depends on 1) The device of claim 1 wherein the movable blade is configured to cut the sleeve with a chopping motion from above the cutter base. ### Claim 7 (depends on 1) The device of claim 1 wherein the movable blade is configured to cut the sleeve with a sliding motion parallel to the cutter base. ### Claim 8 (depends on 1) The device of claim 1 wherein when the blade is seated in the blade-receiving groove after cutting the sleeve, the blade blocks the end of the sleeve that abuts the blade. ### Claim 9 (depends on 1) The device of claim 1 further comprising a radiation shield that mates with the cutter base to cover the sleeve groove. ### Claim 10 A device for cutting a brachytherapy sleeve containing pellets, the device comprising: a. a cutter base having a sleeve groove to receive the sleeve; and b. a moveable blade arm connected to the cutter base so that the movable blade arm moves toward the sleeve from above the cutter base. ### Claim 11 (depends on 10) The device of claim 10 wherein the sleeve groove is elevated above the cutter base. ### Claim 12 (depends on 10) The device of claim 10 wherein the sleeve groove is recessed in the cutter base. ### Claim 13 (depends on 10) The device of claim 10 further comprising a blade fastened to the blade arm by a blade fastener. ### Claim 14 (depends on 10) The device of claim 10 wherein the movable blade arm is rotatably attached to the cutter base at a pivot point. ### Claim 15 (depends on 10) The device of claim 10 further comprising a needle-receiving groove in the cutter base, wherein the needle-receiving groove is co-axial with the sleeve groove. ### Claim 16 (depends on 10) The device of claim 10 further comprising a radiation shield that mates with the cutter base to cover the sleeve groove. ### Claim 17 A device for cutting a brachytherapy sleeve containing pellets, the device comprising: a. a cutter base comprising: i. a sleeve groove; ii. a blade-receiving groove perpendicular to the sleeve groove; iii. a needle-receiving groove perpendicular to the blade-receiving groove; b. a blade arm rotatably connected to the cutter base, the blade arm comprising a blade removably fastened to the blade arm by a blade fastener; wherein when the blade arm is rotated towards the cutter base until the blade is seated in the blade-receiving groove thereby cutting the sleeve and blocking the end of the sleeve abutting the blade; c. a relay device in the needle-receiving groove; and d. a pusher rod configured to push the sleeve into the relay device once the blade arm is rotated away from the cutter base to remove the blade from the blade-receiving groove. ### Claim 18 (depends on 17) The device of claim 17 wherein the sleeve groove is elevated above the cutter base. ### Claim 19 (depends on 17) The device of claim 17 wherein the sleeve groove is recessed in the cutter base. ### Claim 20 (depends on 17) The device of claim 17 further comprising a radiation shield that mates with the cutter base to cover the sleeve groove.