# US 11,433,172 B2 · Fluidic devices, methods, and systems

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- Number: US 11,433,172 B2
- Document ID: US11433172B2
- Status: Granted
- Kind: B2
- Application number: 16/669,984
- Filed: 2019-10-31
- Published: 2020-02-27
- Granted: 2022-09-06
- Earliest claimed: 2016-05-23
- Assignees: Boston Scientific Scimed, Inc.
- Applicants: Boston Scientific Scimed, Inc.
- Inventors: Wei Alfred Gao; Cheng Zhang; Yuan Chester Hong; Feng Kevin Xu
- Web page: https://patentgrep.com/patent/US11433172B2

## 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 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 18/26: for producing a shock wave, e.g. laser lithotripsy
- A61M 1/3403: {Regulation parameters}
- A61M 1/73: {comprising sensors or indicators for physical values}
- A61M 1/77: {Suction-irrigation systems (aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463)}
- A61M 1/79: {Filters for solid matter (specially adapted for dental use A61C17/065)}
- A61M 1/85: {with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants (for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208)}
- A61M 3/0254: {the liquid being pumped (by the patient's weight A61M3/0225)}
- A61M 39/22: Valves or arrangement of valves {(A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405)}
- A61B 2017/22072: {with an instrument channel, e.g. for replacing one instrument by the other}
- A61B 2017/22079: {with suction of debris}
- A61B 2017/22084: {stone- or thrombus-dissolving}
- A61B 2018/00791: {Temperature}
- A61B 2018/00898: {Alarms or notifications created in response to an abnormal condition}
- A61B 2018/00982: {combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes}
- A61B 2018/206: {the laser light passing along a liquid-filled conduit}
- A61B 2217/005: with suction drainage system
- A61B 2217/007: with irrigation system
- A61B 2218/002: Irrigation
- A61M 3/0202: {with electronic control means or interfaces}
- A61M 2205/3344: Measuring or controlling pressure at the body treatment site
- A61M 2205/3368: Temperature
- A61M 2205/7554: with means for unclogging or regenerating filters
- A61M 2230/005: Parameter used as control input for the apparatus
- A61M 2230/30: Blood pressure (A61M2230/04 takes precedence)
- 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

Fluidic devices, methods, and systems are disclosed. One system may comprises a sheath, a delivery module, and a removal module. The sheath includes a working lumen, a delivery lumen, and a removal lumen. The delivery module is configured to move a fluid from a fluid reservoir and into a body cavity through the delivery lumen. The removal module is configured to move the fluid and a particulate contained therein out of the body cavity through the removal lumen, through a filtration device that removes the particulate, and back into the fluid reservoir. One method comprises placing a distal end of sheath into a body cavity, energizing the working lumen to generate a particulate in the cavity, moving the fluid into the cavity to engage the particulate, and moving the fluid and the contaminant from the body cavity, through a filter for removing the contaminant, and back into the fluid source.

## Claims

### Claim 1

A filtration system comprising:
a tubular member with a delivery lumen and a removal lumen extending longitudinally therethrough;
a filtration device;
at least one sensor operable to detect one or more parameters of a fluid;
a controller; and
a valve,
wherein the filtration device is configured to be coupled to a fluid reservoir to define at least one circulation loop to circulate the fluid when the tubular member is placed in a body cavity, and wherein the valve is configured with the controller to direct the fluid from the fluid reservoir back into the filtration device in response to the one or more parameters to form another circulation loop.

### Claim 2 (depends on 1)

The system of claim 1, wherein the at least one sensor is located on a distal end of the tubular member.

### Claim 3 (depends on 2)

The system of claim 2, wherein the at least one sensor includes a pressure sensor and the one or more parameters include a pressure of the fluid in the body cavity.

### Claim 4 (depends on 2)

The system of claim 2, wherein the at least one sensor includes a blood detector and the one or more parameters include an amount of blood in the fluid.

### Claim 5 (depends on 2)

The system of claim 2, wherein the at least one sensor is positioned within one of the lumens of the tubular member.

### Claim 6 (depends on 1)

The system of claim 1, wherein the tubular member further includes a working lumen, and wherein the system further comprises a laser source configured to deliver laser energy through the working lumen.

### Claim 7 (depends on 1)

The system of claim 1, further comprising:
a delivery module coupled to a fluid reservoir and the delivery lumen; and
a removal module coupled to the removal lumen and the filtration device.

### Claim 8 (depends on 7)

The system of claim 7, further comprising a circulation device including a first pump coupled to the fluid reservoir and the delivery lumen, and a second pump coupled to the removal lumen and the filtration device,
wherein the controller operates the first and second pumps in response to the one or more parameters.

### Claim 9 (depends on 8)

The system of claim 8, wherein the filtration device includes at least three filters connected in series, and
wherein the at least three filters are removably attached to the filtration device via a removable filter cartridge.

### Claim 10 (depends on 1)

The system of claim 1, wherein the controller further comprises an input device and an output device, and wherein the controller is coupled to first and second pumps that are separately adjustable to control a pressure within the body cavity.

### Claim 11

A system comprising:
a tubular member including a working lumen, a delivery lumen, and a removal lumen;
at least one sensor operable to detect one or more parameters of a fluid;
a filtration device;
a circulation device including a first pump coupled to a fluid reservoir and the delivery lumen, a second pump coupled to the removal lumen and the filtration device, and a controller that operates the first and second pumps in response to the one or more parameters; and
a valve,
wherein the fluid reservoir is coupled to the filtration device so as to define a first circulation loop to circulate the fluid when the tubular member is placed in a body cavity, and wherein the valve is operable with the controller to direct the fluid from the fluid reservoir and back into the filtration device in response to the one or more parameters to form a second circulation loop.

### Claim 12 (depends on 11)

The system of claim 11, wherein the at least one sensor includes a pressure sensor, wherein the one or more parameters include a predetermined fluid pressure in the body cavity, and wherein the controller maintains the predetermined fluid pressure by operation of the first and second pumps.

### Claim 13 (depends on 11)

The system of claim 11, wherein the at least one sensor includes a blood detector, wherein the one or more parameters include an amount of blood in the fluid, and wherein the controller is configured to operate the first and second pumps to recirculate the fluid through the filtration device to reduce the amount of blood.

### Claim 14 (depends on 11)

The system of claim 11, wherein the system further comprises a laser source configured to deliver laser energy through the working lumen.

### Claim 15 (depends on 11)

The system of claim 11, wherein the filtration device includes one or more filters in a removable filter cartridge.

### Claim 16

A system comprising:
a tubular member including a working lumen, a delivery lumen, and a removal lumen;
at least one sensor operable to detect one or more parameters of a fluid;
a filtration device; and
a circulation device including a first pump coupled to a fluid reservoir and the delivery lumen, a second pump coupled to the removal lumen and the filtration device; and
a controller that operates the first and second pumps in response to the one or more parameters,
wherein the fluid reservoir is coupled to the filtration device so as to define at least two circulation loops when the tubular member is placed in a body cavity.

### Claim 17 (depends on 16)

The system of claim 16, wherein the circulation device includes a valve that is operable with the controller to direct the fluid from the fluid reservoir and back into the filtration device in response to the one or more parameters.

### Claim 18 (depends on 17)

The system of claim 17, wherein the at least one sensor includes a pressure sensor, wherein the one or more parameters include a predetermined fluid pressure in the body cavity, and wherein the controller maintains the predetermined fluid pressure by operation of the first and second pumps.

### Claim 19 (depends on 17)

The system of claim 17, wherein the at least one sensor includes a blood detector, wherein the one or more parameters include an amount of blood in the fluid, and wherein the controller is configured to operate the first and second pumps to recirculate the fluid through the filtration device to reduce the amount of blood.

### Claim 20 (depends on 16)

The system of claim 16, wherein the filtration device includes one or more filters in a removable filter cartridge.