Extracorporeal blood photobiomodulation device

Abstract

An external photodynamic blood activation device includes an input end and an output end connected to a blood inlet catheter and a blood outlet catheter, respectively. The device comprises a T-shaped tube and a light-emitting needle. The T-shaped tube has a main channel and a branch channel extending from the middle portion of the main channel and fluidly communicating with it. The two ends of the main channel are connected to the input end and the output end, respectively. The light-emitting needle has a light guide connected to a light source. The light guide is inserted into the T-shaped tube from the branch channel and extends to the boundary between the branch channel and the main channel, transmitting light from the light source into the main channel.

Claims

1. An extracorporeal photodynamic blood activation device, comprising an input end and an output end respectively connected to a blood inlet conduit and a blood outlet conduit, the extracorporeal photodynamic blood activation device comprising: a T-shaped tube, which is a shell and forms a main channel and a branch channel extending from the middle portion of the main channel and fluidly communicating with the main channel, the two ends of the main channel being respectively connected to the input end and the output end; a light-emitting needle having a light guide connected to a light source, the light guide being inserted into the interior of the T-shaped tube from the branch channel and extending to a boundary between the branch channel and the main channel, a light-emitting surface of the light guide directly serving as the surface contour of the boundary, so that a fluid is confined within the main channel, and a light from the light source is transmitted into the main channel.

2. The extracorporeal photomodulated blood activation device as described in claim 1, wherein the main channel is perpendicular to the branch channel.

3. The extracorporeal photomodulated blood activation device as described in claim 1, wherein the main channel is a pen direct current channel, and the branch channel forms an angle with the main channel.

4. The extracorporeal photomodulated blood activation device as described in claim 1, wherein the light-emitting needle is a laser or an LED light tube.

5. The extracorporeal photomodulated blood activation device as described in claim 1, wherein the light guide is an optical fiber.

6. The extracorporeal photomodulated blood activation device as claimed in claim 1, wherein the number of light sources is multiple and the light sources have different wavelengths.

7. The extracorporeal photomodulated blood activation device as described in claim 6, wherein the light source is electrically connected to a control device for controlling the illumination time, activation sequence, and / or intensity of the light source.

8. The extracorporeal photomodulated blood activation device as claimed in claim 6, wherein the wavelength range of the light sources includes at least two light sources between 620~650nm, 650~700nm, 700~750nm, or / and 800~1200nm.

9. The extracorporeal photomodulated blood activation device as claimed in claim 1, wherein the light source comprises a laser light or an LED light source.

10. The extracorporeal photomodulated blood activation device as claimed in claim 1, wherein the cross-sectional profile of the light-emitting surface of the light guide tube conforms to the cross-sectional profile of the main channel at other locations outside the boundary between the branch channel and the main channel.

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