# US 2017/0281965 A1 · Assembly for photodynamic therapy

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- Number: US 2017/0281965 A1
- Document ID: US20170281965A1
- Status: Published application
- Kind: A1
- Application number: 15/508,119
- Filed: 2015-09-03
- Published: 2017-10-05
- Earliest claimed: 2014-09-04
- Inventors: Tom KERBER
- Web page: https://patentgrep.com/patent/US20170281965A1

## CPC

- A61N 5/062: {Photodynamic therapy, i.e. excitation of an agent}
- A61N 5/0616: {Skin treatment other than tanning}
- A61N 2005/005: {for cooling the radiator}
- A61N 2005/0654: {Lamps}
- A61N 2005/0662: {Visible light}
- A61N 2005/0667: {Filters}
- A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B)

## Abstract

An assembly for photomedicine therapy comprising: (a) at least partially transparent body having an internal cavity; the internal cavity provided with input and output pipes configured for circulating a cooling agent via said internal cavity; and (b) at least one electrically energizable light source disposed within said internal cavity such that radiation from said at least one light source propagates to the ambient surroundings.

## Claims

### Claim at position 1

-8. (canceled)

### Claim 9

An assembly for photomedicine therapy comprising:
a. at least partially transparent body having an internal cavity; said internal cavity is provided with input and output pipes configured for circulating a cooling agent through a pump and a heat radiator via said internal cavity in a close-loop manner;
b. at least one electrically energizable halogen lamp disposed within said internal cavity containing said cooling agent such that radiation from said at least one halogen lamp propagates to the ambient surroundings through said cooling agent while cooling said halogen lamp.

### Claim 10 (depends on 9)

The assembly according to claim 9, wherein said cooling agent is an aqueous solution or a non-aqueous solution.

### Claim 11 (depends on 10)

The assembly according to claim 10, wherein said solution further comprises a colouring matter.

### Claim 12

A system for photomedicine therapy comprising:
a. at least partially transparent body having an internal cavity; said internal cavity is provided with input and output pipes configured for circulating a cooling agent via said internal cavity;
b. at least one electrically energizable halogen lamp disposed within said internal cavity of said body containing said cooling agent such that radiation from said at least one electrically energizable—halogen lamp propagates to the ambient surroundings through said cooling agent while cooling said halogen lamp;
c. a cooling circuit further comprising a pump and heat radiator fluidly connected with said internal cavity in a close-loop manner.

### Claim 13 (depends on 12)

The assembly according to claim 12, wherein said cooling agent is an aqueous solution or a non-aqueous solution.

### Claim 14 (depends on 12)

The assembly according to claim 12, wherein said solution further comprises a colouring matter.

### Claim 15

A method of providing photomedicine therapy to a patient, said method comprising the steps of:
a. providing an assembly for photomedicine therapy comprising:
i. at least partially transparent body having an internal cavity; said cavity configured for mounting a halogen lamp; said internal cavity is provided with input and output pipes configured for circulating a cooling agent through a pump and a heat radiator via said internal cavity in a close-loop manner;
ii. at least one electrically energizable halogen lamp disposed within said cavity such that light from said at least one electrically powerable halogen lamp passes to the ambient surroundings through said cooling agent while cooling said halogen lamp;
b. positioning said assembly adjacent a patient;
c. illuminating said assembly for a period of time; and,
d. circulating a coloured cooling agent within said body;
wherein power density provided by the light source in a treatment plane is from 0.1 watts/cm2 to 2.0 watts/cm2 over an area of 60 cm2.

### Claim 16 (depends on 9)

The assembly according to claim 9, wherein said cooling agent is configured to filter wavelengths below 600 nm and above 1300 nm.

### Claim 17 (depends on 9)

The assembly according to claim 9, wherein the cooling agent comprises a colouring matter configured to filter undesirable spectral bands at blue, green and yellow wavelengths.