CN202477632U

CN202477632U - Medical light-emitting diode (LED) light source

Info

Publication number: CN202477632U
Application number: CN2011205197450U
Authority: CN
Inventors: 冉菲
Original assignee: Xi'an Zhenhe Medical Science & Technology Co Ltd
Current assignee: Xi'an Zhenhe Medical Science & Technology Co Ltd
Priority date: 2011-12-13
Filing date: 2011-12-13
Publication date: 2012-10-10
Anticipated expiration: 2021-12-13

Abstract

The utility model relates to a medical light-emitting diode (LED) light source. The medical LED light source comprises a power socket, wherein one end of a medical switching power supply is connected with the power socket, and the other end of the medical switching power supply is connected with an LED driver; the other end of the LED driver is connected with an LED light source; the LED light source is fixed on a base plate; a radiator is fixed at the other end of the base plate; a focusing component which is arranged in a focusing component shell is arranged in front of the LED light source; an optical fiber is fixed on the focusing component shell; light rays emitted by the LED light source are converged and collimated through a condensation component; an optical fiber port is arranged at a converging opening; and the LED light source can emit white cold light with adjustable brightness under the action of the LED driver. The medical LED light source has the characteristics of small size, good heat dissipation, adjustable brightness, simplicity and convenience for operation and the like.

Description

A kind of medical led light source

Technical field

This utility model relates to a kind of medical light source, is specifically related to a kind of medical led light source.

Background technology

Along with the development of medical optical instrument with popularize, the particularly extensive use of medical endoscope such as arthroscope, peritoneoscope in clinical Minimally Invasive Surgery, increasingly high to the quantity and the characteristic requirements of Medical Cold Light Source.The basic function of Medical Cold Light Source is to produce cold light, and the various endoscopies that can supply to adopt optical fibre light guide provide the brightness illumination as light source for carrying out the inner chamber O&E.Medical light source not only will have enough luminous fluxes, high colour temperature, and wants reliable operation, and is safe in utilization.Early stage halogen tungsten lamp light efficiency and the colour temperature of using is lower, and color reductibility is poor, though can reach high colour temperature at present, owing to self be gas-discharge lamp, the life-span is short.

Along with the development of LED technology, the LED lamp is applied in roadway illumination and room lighting field widely, on medical, further development has been arranged also, but on aspect luminous efficiency and package dimension and the adjustable brightness, still must improve.

The utility model content

In order to overcome the problems referred to above, this utility model provides a kind of medical led light source, and heat, adjustable brightness, the application that can effectively reduce the luminous source generation are strong.

This utility model adopts following technical scheme:

A kind of medical led light source comprises supply socket 1, and medical Switching Power Supply 3 one ends are connected with supply socket 1; The other end is connected with led driver 4; The other end of led driver 4 is connected with led light source 7, and led light source 7 is fixed on the substrate 6, substrate 6 other end fixed heat sink 5; Be arranged on the place ahead that focus pack shell 9 interior focus packs are located at led light source 7, optical fiber 14 is fixed on the focus pack shell 9.

Said optical focus assembly comprises heat shield 8, first optical lens 10, second optical lens 11, focussed collimated lens 12 successively from the place ahead of led light source 7, said first optical lens 10, second optical lens 11 and focussed collimated lens 12 are coaxial.

The optical axis of said focus pack overlaps with led light source 7 centers.

Said substrate 6 planes are perpendicular to the axis of optical focus assembly.

The port of said optical fiber 14 is fixed on focussed collimated lens 12 outsides through trip bolt.

Said supply socket is used for connecting the 220V civil power, supplies with and gives medical Switching Power Supply.

Said medical Switching Power Supply 3 converts civil power to+and 5V and-two kinds of DC voltages of 12V, give led driver 4 power supplies.

Said led driver 4 adopts has the high-brightness LED driver of impulse width modulation and light adjusting control function, thereby can effectively change the brightness that dutycycle is regulated LED, realizes 100～0% dimming scopes, can avoid noise simultaneously.

Said led light source adopts white LED light source, is evenly distributed on the substrate 6 for the integrated form chip or with many.

Adopt led light source, utilize medical Switching Power Supply to convert civil power into the medical applications DC voltage,, regulate supply current, thereby change the brightness of LED lamp, realize the LED light modulation by led driver to the led driver power supply.The light that led light source is sent through concentrating component conducts after polymerised to optical fiber, for endoscope provides illumination.

Description of drawings

Accompanying drawing is a kind of medical led light source sketch

Description of reference numerals:

The 1-220V supply socket

The 2-housing

The medical Switching Power Supply of 3-

The 4-LED driver	The 5-radiator	The 6-substrate
			The 7-led light source	The 8-heat shield	9-focus pack shell
10-first optical lens	11-second optical lens	12-focussed collimated lens
			The 13-trip bolt	14-optical fiber	?

The specific embodiment

In this example, housing 2 comprises supply socket 1, medical Switching Power Supply 3, led driver 4 and led light source assembly, and wherein the led light source assembly comprises led light source 7, substrate 6, radiator 5.Supply socket 1 is electrically connected with external city, is connected with medical Switching Power Supply 3 simultaneously, and led driver 4 connects medical Switching Power Supply 3; Connect led light source 7 simultaneously, led light source 7 is fixed on the substrate 6, and led light source 7 adopts white light; It can be integrated form; Also can be that many light sources are evenly distributed on the circumference, substrate 6 connects heat sink 5, is used for LED is formed better heat radiating effect.Focus pack comprises first optical system 10, second optical system 11, focussed collimated lens 12 and heat shield 8, and the optical axis of focus pack overlaps with the led light source center.

The operation principle of this utility model is: utilize medical Switching Power Supply 3 to convert civil power into the medical applications DC voltage, give led driver 4 power supplies, regulate supply current by led driver 4; Thereby change the brightness of led light source 7; Realize the LED light modulation, the light beam that led light source 7 sends is isolated the heat that LED produces through heat shield 8, through 10 shapings of first optical lens; Focus on focussed collimated lens 12 through second optical lens 11 again and output to optical fiber 14 after with the light collimation; Optical fiber 14 ports utilize trip bolt 13 to be fixed on the focus pack shell 9, the white light optically focused that LED the is sent light beam that is in line, through fiber optic conduction to endoscope.。

This utility model provides a kind of medical white light adjustable LED light source, has that volume is little, good heat dissipation, adjustable brightness, characteristics such as easy and simple to handle.

Claims

1. medical led light source, it is characterized in that: comprise supply socket (1), medical Switching Power Supply (3) one ends are connected with supply socket (1); The other end is connected with led driver (4); The other end of led driver (4) is connected with led light source (7), and led light source (7) is fixed on the substrate (6), substrate (6) other end fixed heat sink (5); Be arranged on the place ahead that the interior focus pack of focus pack shell (9) is located at led light source (7), optical fiber (14) is fixed on the focus pack shell (9).

2. a kind of medical led light source according to claim 1; It is characterized in that: said optical focus assembly comprises heat shield (8), first optical lens (10), second optical lens (11), focussed collimated lens (12) successively from the place ahead of led light source (7), and said first optical lens (10), second optical lens (11) and focussed collimated lens (12) are coaxial.

3. a kind of medical led light source according to claim 1 is characterized in that: the optical axis of said focus pack overlaps with led light source (7) center.

4. a kind of medical led light source according to claim 1 is characterized in that: said substrate (6) plane is perpendicular to the axis of optical focus assembly.

5. a kind of medical led light source according to claim 1 is characterized in that: the port of said optical fiber (14) is fixed on focussed collimated lens (12) outside through trip bolt.

6. a kind of medical led light source according to claim 1 is characterized in that: said led light source (7) is selected white LED light source for use.