# US 12,004,756 B2 · Capture devices and related methods of use > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,756 B2 - Document ID: US12004756B2 - Status: Granted - Kind: B2 - Application number: 17/647,031 - Filed: 2022-01-05 - Published: 2022-06-16 - Granted: 2024-06-11 - Earliest claimed: 2017-11-08 - Assignees: Boston Scientific Scimed, Inc. - Applicants: Boston Scientific Scimed, Inc. - Inventors: Peter J. Pereira; Martin Phelan - Web page: https://patentgrep.com/patent/US12004756B2 ## CPC - 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 10/0096: {Casings for storing test samples (A61B10/0038, A61B10/0045 take precedence; preservation of living parts of the human or animal body A01N1/10; containers for retaining a material to be analysed B01L3/50; containers for enzymology or microbiology C12M1/16; swab-sampler being part of enzymology or microbiology container C12M1/30)} - A61B 10/04: Endoscopic instruments, e.g. catheter-type instruments - A61B 17/22012: {in direct contact with, or very close to, the obstruction or concrement (for removing obstructions in blood vessels by laser A61B18/245)} - A61B 17/22031: {Gripping instruments, e.g. forceps, for removing or smashing calculi (A61B17/221 takes precedence)} - A61M 1/79: {Filters for solid matter (specially adapted for dental use A61C17/065)} - B01D 46/0004: {Details of removable closures, lids, caps or filter heads} - A61B 2017/00296: {mounted on an endoscope} - A61B 2017/22079: {with suction of debris} - A61B 2217/005: with suction drainage system - A61M 2205/50: with microprocessors or computers - A61M 2205/75: with filters - A61M 2210/1075: Gall bladder - A61M 2210/1078: Urinary tract - A61M 2210/1082: Kidney - B01D 2279/00: Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses - B01L 3/502: {with fluid transport, e.g. in multi-compartment structures} - B01L 2300/0681: Filter - B01L 2400/049: vacuum - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - 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)} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B01L: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE ## Abstract A system for retrieving material from a cavity in a patient may include a tube having a proximal end and a distal end, the scope configured to be inserted into the cavity, and a filter assembly disposed between the tube and a vacuum source configured to apply negative pressure through the tube to cause the material to flow through the tube from the distal end to the proximal end, the filter assembly including a filter configured to trap the material in the filter assembly, and allow liquid and gases to pass through the filter assembly. ## Claims ### Claim 1 A system, comprising: a tube having a proximal end and a distal end, the tube configured to be inserted into a cavity; a filter assembly disposed between the tube and a vacuum source configured to apply negative pressure through the tube to cause material to flow through the tube from the distal end to the proximal end, the filter assembly including: a filter configured to trap the material in the filter assembly, and allow liquid and gases to pass through the filter assembly, a first housing, and a second housing removably coupled to the first housing; and at least one end cap for sealing the first housing after the first housing is decoupled from the second housing; wherein the filter assembly is linearly aligned with the tube and the vacuum source, and the filter assembly is a straight linear structure. ### Claim 2 (depends on 1) The system of claim 1, wherein the filter is located in the first housing and/or the second housing, and the filter is configured to retain material having a minimum diameter, and allow liquid, gases, and solid material having a diameter less than the minimum diameter to pass through the filter. ### Claim 3 (depends on 1) The system of claim 1, wherein the filter assembly includes a door movable between a closed configuration and an open configuration, the door enabling a flow of material into the filter assembly in the open configuration, and prohibiting the flow of material into and out of the filter assembly in the closed configuration. ### Claim 4 (depends on 3) The system of claim 3, wherein the door is biased towards the closed configuration. ### Claim 5 (depends on 3) The system of claim 3, wherein application of negative pressure through the filter assembly by the vacuum source moves the door from the closed configuration to the open configuration, and deactivation of the negative pressure through the filter assembly allows the door to move from the open configuration to the closed configuration. ### Claim 6 (depends on 1) The system of claim 1, further including a container disposed between the filter assembly and the vacuum source, wherein the container is configured to capture liquids and solids that pass through the filter of the filter assembly. ### Claim 7 (depends on 1) The system of claim 1, wherein any material that passes through the proximal end of the tube must pass through or be retained by the filter assembly. ### Claim 8 (depends on 1) The system of claim 1, further including an attachment removably coupled to the distal end of the tube, and configured to retain material having a diameter larger than a diameter of a lumen of the tube. ### Claim 9 (depends on 8) The system of claim 8, wherein the attachment includes a door movable between a closed configuration and an open configuration, the door enabling a flow of material into the attachment in the open configuration, and restricting the flow of material into the attachment in the closed configuration. ### Claim 10 (depends on 9) The system of claim 9, wherein the door of the attachment is biased towards the closed configuration. ### Claim 11 (depends on 9) The system of claim 9, wherein application of negative pressure through the attachment by the vacuum source moves the door of the attachment from the closed configuration to the open configuration, and deactivation of the negative pressure through the attachment allows the door of the attachment to move from the open configuration to the closed configuration. ### Claim 12 (depends on 1) The system of claim 1, further comprising a third housing between the filter assembly and the vacuum source, wherein the third housing is configured to retain filtrate. ### Claim 13 A system, comprising: a tube having a proximal end and a distal end, the distal end of the tube configured to be inserted into a cavity; a filter assembly disposed between the tube and a vacuum source configured to apply negative pressure through the tube to cause material to flow through the tube from the distal end to the proximal end, the filter assembly including: a filter configured to trap the material in the filter assembly, a first housing, and a second housing removably coupled and aligned with the first housing such that the material may flow from a distal end of the first housing to a distal end of the second housing; at least one end cap for sealing the first housing after the first housing is decoupled from the second housing; and an attachment removably coupled to a distalmost end of the tube; wherein the filter the filter assembly is a straight linear structure. ### Claim 14 (depends on 13) The system of claim 13, wherein the filter is located in either the first housing or the second housing, and is configured to retain material having a minimum diameter, and allow liquid, gases, and solid material having a diameter less than the minimum diameter to pass through the filter. ### Claim 15 (depends on 13) The system of claim 13, wherein the attachment includes a conical trap having a largest diameter at a distalmost point, and a smallest diameter at a proximalmost point. ### Claim 16 A system, comprising: a tube having a distal end configured to be inserted into a cavity; and a filter assembly disposed between the tube and a vacuum source configured to apply negative pressure through the tube to cause the material to flow through the tube, the filter assembly including: a filter configured to trap the material in the filter assembly, a first housing, and a second housing removably coupled and aligned with the first housing such that the filter assembly is a linear structure; at least one end cap for sealing the first housing after the first housing is decoupled from the second housing; and an attachment removably coupled to the distal end of the tube, the attachment including a conical trap having a largest diameter at a distalmost point, and a smallest diameter at a proximalmost point. ### Claim 17 (depends on 16) The system of claim 16, wherein the filter assembly includes a door movable between a closed configuration and an open configuration, the door enabling a flow of material into the filter assembly in the open configuration, and prohibiting the flow of material into and out of the filter assembly in the closed configuration. ### Claim 18 (depends on 16) The system of claim 16, further comprising a filtrate container configured to retain filtrate, wherein the filtrate container is between the filter assembly and the vacuum source.