# US 12,005,386 B2 · Blood clot removal device, system, and method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,005,386 B2
- Document ID: US12005386B2
- Status: Granted
- Kind: B2
- Application number: 17/712,208
- Filed: 2022-04-04
- Published: 2022-09-15
- Granted: 2024-06-11
- Earliest claimed: 2008-01-28
- Applicants: Peter Forsell
- Inventors: Peter Forsell
- Web page: https://patentgrep.com/patent/US12005386B2

## CPC

- A61M 60/50: Details relating to control
- B01D 46/68: by means acting on the cake side involving movement with regard to the filter elements
- A61F 2/0036: {implantable (A61F2/0018 takes precedence)}
- A61M 1/71: {Suction drainage systems (containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90)}
- A61M 1/79: {Filters for solid matter (specially adapted for dental use A61C17/065)}
- A61M 1/82: {Membrane pumps, e.g. bulbs}
- A61M 27/002: {Implant devices for drainage of body fluids from one part of the body to another (intraocular A61F9/00781; middle ear A61F11/202)}
- A61M 60/857: Implantable blood tubes
- B01D 46/681: by scrapers, brushes or the like
- A61F 2/482: {Electrical means}
- A61F 2/484: {Fluid means, i.e. hydraulic or pneumatic}
- A61F 2250/0001: Means for transferring electromagnetic energy to implants
- A61F 2250/0002: for data transfer
- A61M 1/72: {Cassettes forming partially or totally the fluid circuit}
- A61M 27/006: {Cerebrospinal drainage; Accessories therefor, e.g. valves}
- A61M 60/00: Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance (heart stimulation A61H31/00; heart stimulators for electrotherapy A61N1/362)
- A61M 60/122: Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M 60/871: Energy supply devices; Converters therefor
- A61M 2027/004: {with at least a part of the circuit outside the body}
- A61M 2205/10: with powered movement mechanisms
- A61M 2205/3331: Pressure; Flow
- A61M 2205/3523: using telemetric means
- A61M 2205/7554: with means for unclogging or regenerating filters
- 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)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A blood clot removal method for removing blood clots from the vascular system of a patient, the blood clot removal method carried out on an implantable device in the patient's body and comprising: allowing a blood flow through a passageway between a first side wall and a second side wall, filtering blood clots with a filter provided in the blood flow passageway, and cleaning the filter with a cleaning device, wherein the cleaning device is moved from the first side wall towards the second side wall to move blood clots away from the blood flow passageway.

## Claims

### Claim 1

A blood clot removal method for removing blood clots from the vascular system of a patient, the blood clot removal method carried out on an implantable device in the patient's body and comprising:
allowing a blood flow through a passageway between a first side wall and a second side wall, filtering blood clots with a filter provided in the blood flow passageway, and
cleaning the filter with a cleaning device, wherein the cleaning device is moved from the first side wall towards the second side wall to move blood clots away from the blood flow passageway.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the cleaning device comprises a first piston and the method includes removing clots from the filter by moving the first piston in a direction at least partly perpendicular to the direction of the blood flow passageway.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the first piston is provided with a plurality of channels and the method includes accommodating the filter in an extended position of said first piston.

### Claim 4 (depends on 2)

The method according to claim 2, comprising the step of controlling the movement of the first piston by means of a source of pressurized air, an electric motor, a solenoid, or a spring.

### Claim 5 (depends on 2)

The method according to claim 2, wherein the cleaning step is conducted by slicing, pushing or scratching away clots from the filter or by sucking away any clots from the filter, when placed in the blood flow passageway or after being moved away from the blood flow passageway.

### Claim 6 (depends on 2)

The method according to claim 2, further comprising the step of placing the blood clots in at least one of: a collecting volume adapted to collect blood clots that have been cleaned from the filter, and a free space in the patient's body.

### Claim 7 (depends on 2)

The method according to claim 2, wherein the filter is of biocompatible material.

### Claim 8 (depends on 1)

The method according to claim 1, further comprising the step of operating an operation device for operating the cleaning device, wherein an internal control unit controls the operation device to operate the cleaning device in response to the sensor sensing a parameter related to the accumulation of blood clots.

### Claim 9 (depends on 1)

The device according to claim 1, wherein the method comprises the step of moving blood clots to a location within the body of the patient.