Capsule type photodynamic therapy apparatus with anchor

Patent metadata

Field	Value
Publication number	US-11389665-B2
Application number	US-201916685360-A
Country	US
Kind code	B2
Filing date	Nov 15, 2019
Priority date	Oct 30, 2019
Publication date	Jul 19, 2022
Grant date	Jul 19, 2022

Abstract

Disclosed herein is a capsule type photodynamic therapy apparatus. The apparatus has an anchor packaged with a silicone dome to anchor the apparatus to target tissue in a body by an endoscope, and includes a battery to communicate with an external device via human body communication in the silicone dome, and is repeatedly operated several times under the control of the external device to irradiate the target tissue with a therapeutic light source and thereby repeatedly treat the target tissue several times.

First claim

What is claimed is:

1. A capsule type photodynamic therapy apparatus with an anchor, the apparatus comprising:
a capsule body having the anchor that protrudes outwards to be anchored to a target tissue in a body;
a board unit coupled to an inside of an upper portion along a longitudinal direction of the capsule body;
a light irradiation unit electrically coupled to an upper portion of the board unit to be formed along a direction aligned with the longitudinal direction of the capsule body, radiating light in opposite directions perpendicular to the longitudinal direction of the capsule body, and including at least one micro-light source provided along the direction aligned with the longitudinal direction of the capsule body; and
a silicone dome transmitting light radiated from the light irradiation unit, configured to have a shape of a cap that is opened at a side thereof to cover the light irradiation unit and the board unit, and coupled to the upper portion of the capsule body while covering the light irradiation unit and the board unit, thus packaging the capsule body, the light irradiation unit, and the board unit;
wherein the capsule body comprises:
a cylindrical capsule body;
a cap coupler provided on the upper portion of the capsule body so that the silicone dome is coupled to the upper portion;
a double packing extending from the cap coupler to have an inner radius smaller than that of the cap coupler, with a protrusion being two protrusions formed along an outer circumference thereof; and
at least one anchor protruding outwards below the cap coupler of the capsule body, and pointed at an end thereof to be fixedly inserted into the target tissue, and

wherein the silicone dome comprises:
a cap body transmitting light irradiated from the light irradiation unit, configured to have the shape of the cap that is opened at a side thereof to cover the light irradiation unit and the board unit, and coupled to the upper portion of the capsule body while covering the light irradiation unit and the board unit; and
a double packing coupler provided in the cap body corresponding to the double packing, and doubly coupled with the double packing to doubly package the light irradiation unit and the board unit.

2. The capsule type photodynamic therapy apparatus of claim 1 , wherein the anchor protrudes to form an oblique line with an outer circumference of the capsule body within a predetermined angle.

3. The capsule type photodynamic therapy apparatus of claim 1 , wherein the light irradiation unit comprises:
at least two micro-light sources provided to radiate light;
a flexible film formed along the direction aligned with the longitudinal direction of the capsule body, each of the micro-light sources being longitudinally connected to the flexible film to radiate light in the opposite directions perpendicular to the longitudinal direction of the capsule body; and
a board connector provided on an end of the flexible film, connected electrically to the micro-light source, and coupled electrically to an upper portion of the board unit.

4. The capsule type photodynamic therapy apparatus of claim 3 , wherein the flexible film comprises the micro-light sources on only one of two sides of the flexible film, and the flexible film is bent in an inverted U shape so that the micro-light sources radiate light in the opposite directions perpendicular to the longitudinal direction of the capsule body, and the board connector is provided on each of two ends of the flexible film.

5. The capsule type photodynamic therapy apparatus of claim 3 , wherein the flexible film comprises at least three micro-light sources on only one of two sides of the flexible film, and the flexible film is bent in an inverted U shape so that the micro-light sources radiate light in the opposite directions perpendicular to the longitudinal direction of the capsule body and in a direction perpendicular to the opposite directions, and
the board connector is provided on each of two ends of the bent flexible film.

6. The capsule type photodynamic therapy apparatus of claim 1 , wherein the capsule body further comprises:
a space defining an empty space therein; and
a battery inserted into the space, and connected electrically to the board unit to supply power to the board unit and the light irradiation unit.

Assignees

• Korea Photonics Tech Inst

Inventors

• Sa Gidong
• Kim Ja-Yeon
• Ahn Sun-Hee
• An Jinyoung
• Kim Sa-Ung
• Kim Eunbee
• Jeong Ji-Ho

Classifications

• A61N5/0601

  Apparatus for use inside the body · CPC title

• A61N2005/0626

  Monitoring, verifying, controlling systems and methods · CPC title

• A61N2005/0612

  using probes penetrating tissue; interstitial probes · CPC title

• A61N2005/0632

  Constructional aspects of the apparatus · CPC title

• A61N5/0603 Primary

  for treatment of body cavities · CPC title