INSERTION METHOD

• US 20160249795A1
• Filed: 02/26/2015
• Published: 09/01/2016
• Est. Priority Date: 02/26/2015
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: FUJISAKI, Ken
• Granted Patent: US 9,723,977 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 1/233 for the nose, i.e. nasoscopes , e.g. testing of patency of Eustachian tubes
• CPC Class Codes: A61B 10/04 Endoscopic instruments
• CPC Class Codes: A61B 10/06 Biopsy forceps , e.g. with cup-shaped jaws
• CPC Class Codes: 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
• CPC Class Codes: A61B 17/3201 Scissors for biopsy A61B10/02
• CPC Class Codes: A61B 2017/00349 Needle-like instruments having hook or barb-like gripping means, e.g. for grasping suture or tissue A61B17/06066 takes precedence
• CPC Class Codes: A61B 2017/320044 Blunt dissectors
• CPC Class Codes: A61B 2090/3782 transmitter or receiver in catheter or minimal invasive instrument
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61M 2210/0681 Sinus (maxillaris)

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

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.

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

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

4. 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.

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

6. 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.

7. 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.