# US 11,432,835 B2 · Apparatus and methods for clot aspiration > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,432,835 B2 - Document ID: US11432835B2 - Status: Granted - Kind: B2 - Application number: 16/000,762 - Filed: 2018-06-05 - Published: 2018-12-13 - Granted: 2022-09-06 - Earliest claimed: 2017-06-07 - Assignees: Penumbra, Inc. - Applicants: Penumbra, Inc. - Inventors: Robyn Shaffer; Stephen Pons; Kyle West; Alex Rabkin; Sharice Quan Handa; Robert A. Riccomini; Daniel K. Harden; Michael C. Makay; Cole J. Derby - Web page: https://patentgrep.com/patent/US11432835B2 ## CPC - A61M 1/60: {Containers for suction drainage, adapted to be used with an external suction source (containers not adapted for subjection to vacuum A61M1/69)} - A61B 17/22: Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for - A61B 17/221: Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)} - A61B 17/32037: {for removing obstructions from inner organs or blood vessels, e.g. for atherectomy} - A61B 17/3207: Atherectomy devices {working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions (A61B17/32037 takes precedence; endoscopic cutting instruments A61B17/320016)} - A61M 1/732: {Visual indicating means for vacuum pressure} - A61M 1/79: {Filters for solid matter (specially adapted for dental use A61C17/065)} - A61B 2017/22079: {with suction of debris} - A61B 2017/22084: {stone- or thrombus-dissolving} - A61B 2217/005: with suction drainage system - A61M 1/80: {Suction pumps (A61M1/64, A61M1/71, A61M60/00 take precedence)} - A61M 2205/587: Lighting arrangements - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A system for connection to a catheter to aspirate clot from the vasculature of a patient includes a vacuum console and a canister assembly which can be removably mounted in a mounting region of the vacuum console. The canister assembly includes a clear canister with an interior and an open top. A lid is removably attachable over the open top of the clear canister, and the clear canister has a vacuum port and a pressure sensing port each formed in a wall of the canister. The vacuum port aligns with a vacuum connector on the enclosure and the pressure sensing port aligns with a pressure sensing connector on the enclosure when the canister assembly is mounted on the mounting region of the vacuum console. The clear canister has a filter plate configured to be suspended in the interior of the clear canister at a location mid-way between the open top and a bottom to separate clot from blood as they are aspirated from the catheter. ## Claims ### Claim 1 A canister assembly for removably mounting on a mounting region of a vacuum console which has a vacuum connector connected to a vacuum pump and a pressure sensing connector connected to a pressure sensor, said canister assembly comprising: a clear canister with an interior and an open top; and a lid removably attachable over the open top of the clear canister; said clear canister having a vacuum port and a pressure sensing port each formed in a groove formed in a wall of the canister, wherein the vacuum port aligns with the vacuum connector and the pressure sensing port aligns with the pressure sensing connector and the groove aligns with a mounting post of the vacuum console when the canister assembly is mounted on the mounting region of the vacuum console. ### Claim 2 (depends on 1) A canister assembly as in claim 1, wherein the lid has an aspiration port configured to removably connect to a catheter or aspiration tube. ### Claim 3 (depends on 1) A canister assembly as in claim 1, further comprising a filter plate configured to be suspended in the interior of the clear canister at a location mid-way between the open top and a bottom, wherein the filter plate includes an edge and at least a portion of the edge contacts a wall of the clear canister. ### Claim 4 (depends on 1) A canister assembly as in claim 1, wherein the vacuum port and the pressure sensing port are each formed in the wall at a location mid-way between the open top and a bottom and are each connected to riser tubes within the interior of the clear canister, wherein the riser tubes are open at their upper ends so that the vacuum is drawn and the pressure sensed near the top of the canister. ### Claim 5 (depends on 4) A canister assembly as in claim 4, wherein the riser tube connected to the vacuum port has a filter in a lumen thereof. ### Claim 6 (depends on 2) A canister assembly as in claim 2, wherein the aspiration port includes both a threaded connector and a tubular connector so that it can connect to a catheter or aspiration tube having a threaded connector or to a catheter or aspiration tube having a tubular connector. ### Claim 7 (depends on 6) A canister assembly as in claim 6, wherein the threaded connector of the aspiration port has detents configured to mate with detents on a threaded connector of the catheter or aspiration tube. ### Claim 8 A vacuum console for removably receiving a canister assembly, said vacuum console comprising: an enclosure having a mounting post, formed within a recess in the enclosure, that aligns the canister assembly during mounting; a vacuum pump and a pressure sensor within the enclosure; and a vacuum connector connected to the vacuum pump and a pressure sensing connector connected to the pressure sensor; wherein the vacuum connector aligns with a vacuum port of the canister assembly and the pressure sensing connector aligns with a pressure sensing port of the canister assembly when the canister assembly is mounted. ### Claim 9 (depends on 8) A vacuum console as in claim 8, wherein the vacuum connector and the pressure sensing connector are located on a top surface of the mounting post. ### Claim 10 (depends on 9) A vacuum console as in claim 9, wherein the vacuum connector and the pressure sensing connector are abutting on the top surface of the mounting post. ### Claim 11 (depends on 8) A vacuum console as in claim 8, wherein the mounting post is vertical and extends from a bottom of the enclosure to at least a midway height of the enclosure. ### Claim 12 (depends on 8) A vacuum console as in claim 8, including a light bar display on a top of the enclosure for indicating vacuum pressure, wherein the light bar display is circular and segmented into quadrants.