# US 9,433,427 B2 · Systems and methods for management of thrombosis > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,433,427 B2 - Document ID: US9433427B2 - Status: Granted - Kind: B2 - Application number: 14/680,017 - Filed: 2015-04-06 - Published: 2015-10-08 - Granted: 2016-09-06 - Earliest claimed: 2014-04-08 - Assignees: Incuvate, LLC - Applicants: Incuvate, LLC - Inventors: David M. Look; Bradley S. Culbert - Web page: https://patentgrep.com/patent/US9433427B2 ## CPC - G06Q 30/0207: Discounts or incentives, e.g. coupons or rebates - 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 17/32037: {for removing obstructions from inner organs or blood vessels, e.g. for atherectomy} - A61M 1/90: {Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing} - G06Q 30/02: Marketing; Price estimation or determination; Fundraising - G06Q 30/0601: Electronic shopping [e-shopping] - A61B 2017/00022: {Sensing or detecting at the treatment site} - A61B 2017/00119: {alarm; indicating an abnormal situation} - A61B 2017/00991: {Telescopic means} - A61B 2017/22001: {Angioplasty, e.g. PCTA} - A61B 2017/22039: {eccentric} - A61B 2017/22067: {Blocking; Occlusion (A61B2017/22054 takes precedence)} - A61B 2017/22079: {with suction of debris} - A61B 2017/22094: {for crossing total occlusions, i.e. piercing} - A61B 2217/005: with suction drainage system - G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR - 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)} ## Abstract In one embodiment an aspiration system includes an elongate tubular member having a lumen; an aspiration catheter configured to be inserted through the lumen of the elongate tubular member, and including a tubular aspiration member having a proximal end, a distal end, and a lumen, and configured to at least partially extend out of the lumen of the elongate tubular member at the distal end of the elongate tubular member; an elongate support member coupled to the tubular aspiration member and extending between a proximal end of the aspiration catheter and the proximal end of the tubular aspiration member; and an annular sealing member coupled to the tubular aspiration member and configured to create a seal against an inner surface of the elongate tubular member, when a vacuum sufficient to cause aspiration is actively applied to the lumen of the elongate tubular member. ## Claims ### Claim 1 An aspiration system comprising: an elongate tubular member for insertion into the vasculature of a patient, the elongate tubular member having a proximal end, a distal end, a lumen extending from the proximal end to the distal end, and an inner surface defined by the lumen; an aspiration catheter having a proximal end and a distal end and configured to be inserted through the lumen of the elongate tubular member, the aspiration catheter comprising: a tubular aspiration member having a proximal end, a distal end, and a lumen, and configured to at least partially extend out of the lumen of the elongate tubular member at the distal end of the elongate tubular member and into the vasculature of the patient; an elongate support member coupled to the tubular aspiration member and extending between the proximal end of the aspiration catheter and the proximal end of the tubular aspiration member; and an annular seal comprising at least one annular sealing member coupled to the tubular aspiration member; a vacuum source configured for coupling to the proximal end of the elongate tubular member; and wherein the at least one annular sealing member is configured to create a seal against the inner surface of the elongate tubular member, substantially preventing liquid having a viscosity of about 0.0025 Pascal-seconds from passing through an annular space between the elongate tubular member and the tubular aspiration member in a distal to proximal direction and into the lumen of the elongate tubular member proximal to the at least one annular sealing member when a vacuum sufficient to cause aspiration of the liquid through the lumen of the tubular aspiration member and the lumen of the elongate tubular member from the distal end of the tubular aspiration member to the proximal end of the elongate tubular member is actively applied to the lumen of the elongate tubular member at the proximal end of the elongate tubular member. ### Claim 2 (depends on 1) The aspiration system of claim 1, wherein the aspiration catheter is freely translatable longitudinally in relation to the elongate tubular member when no vacuum is applied to the lumen of the elongate tubular member. ### Claim 3 (depends on 1) The aspiration system of claim 1, wherein the at least one annular sealing member has a first end, a second end, and a wall, the first end coupled to the tubular aspiration member and having a first outer diameter and the second end having a second outer diameter, greater than the first outer diameter, the second end located distally from the first end. ### Claim 4 (depends on 3) The aspiration system of claim 3, further comprising an annular concavity at the second end of the at least one annular sealing member. ### Claim 5 (depends on 1) The aspiration system of claim 1, wherein the inner surface of the elongate tubular member has a first inner diameter at a location adjacent the distal end of the elongate tubular member. ### Claim 6 (depends on 5) The aspiration system of claim 5, wherein the at least one annular sealing member comprises a plurality of annular sealing members arrayed along a proximal portion of the tubular aspiration member, each of the plurality of annular sealing members having an outer diameter which is greater than the first inner diameter of the inner surface of the elongate tubular member. ### Claim 7 (depends on 5) The aspiration system of claim 5, wherein the at least one annular sealing member comprises a hydrogel disposed on at least a cylindrical outer surface portion of the tubular aspiration member and having a non-hydrated state having a non-hydrated diameter and an unconstrained state having an unconstrained hydrated diameter, the non-hydrated diameter less than the first inner diameter of the inner surface of the elongate tubular member and the unconstrained hydrated diameter greater than the first inner diameter of the inner surface of the elongate tubular member, such that the at least one annular sealing member is configured to seal against the first inner diameter of the inner surface of the elongate tubular member when the hydrogel is in its hydrated state. ### Claim 8 (depends on 1) The aspiration system of claim 1, wherein the at least one annular sealing member comprises a hydrogel disposed on at least a cylindrical outer surface portion of the tubular aspiration member. ### Claim 9 (depends on 1) The aspiration system of claim 1, wherein the proximal end of the aspiration catheter is configured to extend proximally from the proximal end of the elongate tubular member when the distal end of the tubular aspiration member extends into the vasculature of the patient. ### Claim 10 (depends on 1) The aspiration system of claim 1, wherein the tubular aspiration member has an outer diameter and an inner diameter, and wherein the elongate support member includes a distal end comprising a partial cylinder having an outer radius and an inner radius, at least one of the outer radius and inner radius configured to substantially match either the outer diameter of the tubular aspiration member or the inner diameter of the tubular aspiration member. ### Claim 11 (depends on 1) The aspiration system of claim 1, further comprising; a vacuum source; a housing having a first port adapted for coupling to the vacuum source and a second port adapted for coupling to the proximal end of the elongate tubular member; a pressure sensor in fluid communication with an interior of the housing; a measurement device coupled to the pressure sensor and configured for measuring deviations in fluid pressure; and a communication device coupled to the measurement device and configured to generate an alert when a deviation in fluid pressure measured by the measurement device exceeds a pre-set threshold. ### Claim 12 (depends on 11) The aspiration system of claim 11, wherein the communication device is configured to generate a first type of alert in response to a deviation measured by the measurement device comprising a plurality of increases and decreases of vacuum pressure. ### Claim 13 (depends on 12) The aspiration system of claim 12, wherein the communication device is configured to generate a second type of alert in response to the deviation comprising a plurality of increases and decreases of vacuum pressure no longer being measured by the measurement device. ### Claim 14 (depends on 11) The aspiration system of claim 11, further comprising a memory module, wherein the measurement device is configured to compare measured deviations in pressure with information contained in the memory module. ### Claim 15 (depends on 1) The aspiration system of claim 1, further comprising: a high pressure injection lumen having a proximal end and a distal end and extending from the proximal end of the aspiration catheter to a location adjacent the distal end of the tubular aspiration member; and at least one orifice at the distal end of the high pressure injection lumen configured to allow high pressure liquid injected through the high pressure injection lumen to be released into the inner lumen of the tubular aspiration member. ### Claim 16 (depends on 15) The aspiration system of claim 15, wherein the high pressure injection lumen is carried along the length of the elongate support member. ### Claim 17 (depends on 16) The aspiration system of claim 16, wherein the elongate support member comprises a hypo tube having the high pressure injection lumen as its lumen. ### Claim 18 (depends on 15) The aspiration system of claim 15, wherein the at least one annular sealing member has a first end, a second end, and a wall, the first end coupled to the tubular aspiration member and having a first outer diameter and the second end having a second outer diameter, greater than the first outer diameter, the second end located distally from the first end. ### Claim 19 (depends on 15) The aspiration system of claim 15, wherein the inner surface of the elongate tubular member has a first inner diameter at a location adjacent the distal end of the elongate tubular member, and wherein the at least one annular sealing member comprises a plurality of annular sealing members arrayed along a proximal portion of the tubular aspiration member, each of the plurality annular sealing members having an outer diameter which is greater than the first inner diameter of the inner surface of the elongate tubular member. ### Claim 20 (depends on 15) The aspiration system of claim 15, wherein the at least one annular sealing member comprises a hydrogel disposed on at least a cylindrical outer surface portion of the tubular aspiration member. ### Claim 21 (depends on 1) The aspiration system of claim 1, wherein the at least one annular sealing member is configured to create a seal against the inner surface of the elongate tubular member, substantially preventing liquid having a viscosity of about 0.0025 Pascal-seconds from passing through an annular space between the elongate tubular member and the tubular aspiration member in a distal to proximal direction and into the lumen of the elongate tubular member proximal to the at least one annular sealing member when a vacuum pressure of between about −82,737 pascal and about −95,526 pascal is actively applied to the lumen of the elongate tubular member at the proximal end of the elongate tubular member. ### Claim 22 (depends on 1) The aspiration system of claim 1, wherein the at least one annular sealing member is configured to create a seal against the inner surface of the elongate tubular member, substantially preventing liquid having a viscosity of about 0.0025 Pascal-seconds from passing through an annular space between the elongate tubular member and the tubular aspiration member in a distal to proximal direction and into the lumen of the elongate tubular member proximal to the at least one annular sealing member when a vacuum pressure of about −46,662 pascal is actively applied to the lumen of the elongate tubular member at the proximal end of the elongate tubular member. ### Claim 23 (depends on 22) The aspiration system of claim 22, wherein the at least one annular sealing member is configured to allow liquid having a viscosity of about 0.0025 Pascal-seconds from passing through an annular space between the elongate tubular member and the tubular aspiration member in a proximal to distal direction from the lumen of the elongate tubular member to a location distal to the at least one annular sealing member when a pressure of about 46,662 pascal is actively applied to the lumen of the elongate tubular member at the proximal end of the elongate tubular member.