# US 11,439,487 B2 · Systems and methods for an evacuator adapter

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- Number: US 11,439,487 B2
- Document ID: US11439487B2
- Status: Granted
- Kind: B2
- Application number: 17/366,956
- Filed: 2021-07-02
- Published: 2022-01-06
- Granted: 2022-09-13
- Earliest claimed: 2020-07-03
- Applicants: Edison Sangwoo Han
- Inventors: Edison Sangwoo Han
- Web page: https://patentgrep.com/patent/US11439487B2

## CPC

- A61C 17/06: Saliva removers; Accessories therefor
- A61C 17/08: Aspiration nozzles
- A61B 90/40: Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment
- A61M 1/76: {Handpieces (specially for suction-irrigation A61M1/774, aspiration tips A61M1/84)}
- A61M 1/79: {Filters for solid matter (specially adapted for dental use A61C17/065)}
- A61M 1/804: {using Laval or Venturi jet pumps}
- A61M 1/87: {Details of the aspiration tip, not otherwise provided for}
- A61B 2090/401: {using air flow}
- A61M 2205/103: rotating
- A61M 2206/14: Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws
- A61M 2206/16: Rotating swirling helical flow, e.g. by tangential inflows
- A61M 2206/20: having means for promoting or enhancing the flow, actively or passively
- A61M 2210/0625: Mouth
- A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00)
- 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

An adapter for an evacuator for increasing a suction power of the evacuator includes a suction assembly adapted to be coupled with the evacuator. The suction assembly has a housing, an impeller arranged inside the housing and configured to provide a suction, and an inlet conduit to facilitate a flow of fluid to the impeller. The suction assembly also includes an outlet conduit arranged inside the housing and adapted to be coupled to the evacuator. The outlet conduit is in fluid communication with the impeller and facilitates a flow of the fluid from the suction assembly to the evacuator.

## Claims

### Claim 1

An adapter for an evacuator, comprising:
a suction assembly adapted to be coupled with the evacuator, wherein the suction assembly comprising:
a housing;
an impeller assembly arranged inside the housing, wherein the impeller assembly includes an impeller, a motor driving the impeller, and an impeller housing, wherein the impeller assembly is configured to provide a suction;
an inlet conduit to facilitate a flow of fluid to the impeller; and
an outlet conduit arranged inside the housing and adapted to be coupled to the evacuator,
wherein the outlet conduit is in fluid communication with the impeller and facilitates the flow of the fluid from the suction assembly to the evacuator,
wherein a first end of the outlet conduit is attached to the impeller assembly and a second end of the outlet conduit is configured to receive a connection of the evacuator,
wherein an opening of the first end of the outlet conduit which is attached to the impeller assembly is larger than an opening of the second end of the outlet conduit which is configured to receive the connection of the evacuator, and
wherein the adapter is configured to restrict airflow to a predetermined threshold based on a configuration of each of the outlet conduit and the impeller assembly.

### Claim 2 (depends on 1)

The adapter of claim 1 further comprising a tube removably coupled to the inlet conduit and arranged outside the housing, wherein the tube is a venturi tube and tapers outwardly from the inlet conduit in a direction away from the inlet conduit.

### Claim 3 (depends on 2)

The adapter of claim 2 further comprising a tip structure coupled to the tube configured to enable suctioning of fluid from inside of a mouth of a patient.

### Claim 4 (depends on 3)

The adapter of claim 3 further comprising a mesh arranged at an interface of the tip structure and the tube to protect the impeller from solid objects.

### Claim 5 (depends on 2)

The adapter of claim 2 further comprising an impeller mechanism arranged along an inner wall of the tube to create a vortex inside the tube and disintegrate particles present flowing through the tube.

### Claim 6 (depends on 5)

The adapter of claim 5, wherein the impeller mechanism comprises a plurality of fins arranged in a plurality of rows inside the tube, wherein each row extends spirally from a first end section of the tube to a second end section of the tube.

### Claim 7 (depends on 6)

The adapter of claim 6, wherein the fins arranged at a cross-section of the tube are arranged at a predefined angular orientation from the fins arranged at an adjacent cross-section.

### Claim 8 (depends on 6)

The adapter of claim 6, wherein each fin includes a shark fin shape.

### Claim 9 (depends on 5)

The adapter of claim 5, wherein the impeller mechanism comprises a plurality of helical strands extending from a front end section of the tube to a rear-end section of the tube.

### Claim 10 (depends on 9)

The adapter of claim 9, wherein the strands are arranged at a fixed predetermined angle relative to each other throughout the extension of the strands inside the tube.

### Claim 11 (depends on 9)

The adapter of claim 9, wherein each of the plurality of strands includes a sharp edge to facilitate a breaking of the particles present inside the fluid.

### Claim 12 (depends on 1)

The adapter of claim 1, further comprising a suction connector adapted to engage with the inlet conduit to facilitate a capture of aerosols coming outside a mouth of a patient, wherein the suction connector includes:
a conduit portion adapted to engage with the inlet conduit, and
a collector portion to collect the aerosols and extending outwardly and away from the conduit portion.

### Claim 13 (depends on 12)

The adapter of claim 12, wherein the collector portion comprises:
a funnel portion engaged with the conduit portion; and
a cover portion adapted to removably engage with the funnel portion and defining a cavity therebetween, wherein the cover portion defines a plurality of openings to capture the aerosols and spatters coming outside the mouth of the patient.

### Claim 14 (depends on 13)

The adapter of claim 13, wherein the cover portion comprises a plurality of guide conduits extending inside the cavity and along a rear surface of the cover portion, and wherein the plurality of guide conduits is in fluid communication with the plurality of openings to enable the flow of the fluid entering the plurality of openings to the conduit portion.

### Claim 15 (depends on 13)

The adapter of claim 13, wherein the cover portion comprises a concave shape having a front concave surface, and wherein the plurality of openings is defined at the front concave surface.

### Claim 16 (depends on 12)

The adapter of claim 12, wherein the collector portion comprises a shape of a substantially circular shower pad.

### Claim 17 (depends on 1)

The adapter of claim 1, wherein the suction assembly further comprises a trigger switch to control a suction power of the adapter.

### Claim 18 (depends on 17)

The adapter of claim 17, wherein the trigger switch controls a rotational speed of the impeller to control the suction power of the adapter.

### Claim 19 (depends on 1)

The adapter of claim 1, wherein the housing comprises a hand-gun shape having a barrel portion and a handle, wherein the inlet conduit is arranged inside the barrel portion and the outlet conduit extends inside the handle, wherein the outlet conduit tapers inwardly from the impeller in a direction away from the impeller along a length of the handle, and wherein the handle extends downwardly from the barrel portion and is arranged at an angle greater than or equal to 90 degrees relative to the barrel portion.

### Claim 20 (depends on 1)

The adapter of claim 1, wherein the predetermined threshold of airflow is 4.5 Standard Cubic Feet per Minute (SCFM) or less.