# US 2016/0249795 A1 · Insertion method

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- Number: US 2016/0249795 A1
- Document ID: US20160249795A1
- Status: Published application
- Kind: A1
- Application number: 14/632,693
- Filed: 2015-02-26
- Published: 2016-09-01
- Earliest claimed: 2015-02-26
- Assignees: Olympus Corporation
- Applicants: Olympus Corporation
- Inventors: Ken FUJISAKI
- Web page: https://patentgrep.com/patent/US20160249795A1

## CPC

- A61B 1/233: for the nose, i.e. nasoscopes {, e.g. testing of patency of Eustachian tubes}
- A61B 10/04: Endoscopic instruments, e.g. catheter-type instruments
- A61B 10/06: Biopsy forceps {, e.g. with cup-shaped jaws}
- A61B 17/24: for use in the oral cavity, larynx, bronchial passages or nose (for medical inspection of cavities or tubes in the body A61B1/00); Tongue scrapers
- A61B 8/12: in body cavities or body tracts, e.g. by using catheters
- A61B 17/3201: Scissors (for biopsy A61B10/02)
- A61B 2017/00349: {Needle-like instruments having hook or barb-like gripping means, e.g. for grasping suture or tissue (A61B17/06066 takes precedence)}
- A61B 2017/320044: {Blunt dissectors}
- A61B 2090/3782: {transmitter or receiver in catheter or minimal invasive instrument}
- A61M 2210/0681: Sinus (maxillaris)
- 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 insertion method includes: specifying a part of a mucous membrane which lies between a nasal cavity and a maxillary sinus and which is located in a space surrounded by an inferior nasal concha, a lacrimal bone, an ethmoid bone, and a palatine bone, as an opening formation position where an opening connected to the maxillary sinus is formed; forming the opening at the opening formation position; and inserting a medical device into the maxillary sinus through the formed opening.

## Claims

### Claim 1

An insertion method comprising:
specifying a part of a mucous membrane which lies between a nasal cavity and a maxillary sinus and which is located in a space surrounded by an inferior nasal concha, a lacrimal bone, an ethmoid bone, and a palatine bone, as an opening formation position where an opening connected to the maxillary sinus is formed;
forming the opening at the opening formation position; and
inserting a medical device into the maxillary sinus through the formed opening.

### Claim 2 (depends on 1)

The insertion method according to claim 1, wherein the opening formation position is specified by a repulsive force from the mucous membrane.

### Claim 3 (depends on 1)

The insertion method according to claim 1, wherein the opening formation position is specified based on an intranasal image captured by an endoscope.

### Claim 4 (depends on 3)

The insertion method according to claim 3, wherein the opening formation position is specified by reflection of light from the mucous membrane in the intranasal image.

### Claim 5 (depends on 1)

The insertion method according to claim 1, wherein the opening formation position is specified based on an ultrasonic image captured by an ultrasonic endoscope.

### Claim 6 (depends on 1)

The insertion method according to claim 1, wherein the specifying of the opening formation position and the forming of the opening are performed by a same treatment tool.

### Claim 7 (depends on 1)

The insertion method according to claim 1, wherein the specifying of the opening formation position and the forming of the opening are performed by different treatment tools.