CN2100864U

CN2100864U - Optical fibre otoscope

Info

Publication number: CN2100864U
Application number: CN 91225749
Authority: CN
Inventors: 齐国勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-10-07
Filing date: 1991-10-07
Publication date: 1992-04-08

Abstract

The utility model relates to an optical fiber otoscope, which is composed of a hollow cone filled with optical fiber, a magnifying glass, a handle, an electric element and an air-blowing component. The handle is a hollow body in which the electric element is arranged, the upper end of the handle is connected with the hollow cone filled with the optical fiber via a spring head and a sleeve tube, and the magnifying glass is arranged in a glass tube arranged at the top end of the enlarging part of the cone. The optical otoscope has light source, the brightness is high, and the diseased regions can be seen clearly. The trouble of a head mirror that doctors have to focus the light is omitted, and the utility model can be used for the routine examination of ears and the massage therapy of tympanic membrane.

Description

Optical fibre otoscope

This utility model belongs to medical apparatus and instruments, and specifically, it relates to a kind of otoscope.

The doctor carries out ear, nose, larynx routine examination to the patient, adopts frontal mirror usually, and the outstanding shortcoming of this mirror is: need to be equipped with intense light source, observe pathological changes by light source by the reflecting condensation body of frontal mirror, use inconvenience, and under the condition of no light source, can not use.In order to overcome above-mentioned shortcoming, in recent years, there is photoconduction bar type speculum to occur, but exists optical axis inconsistent, the shortcoming that is not easy to observe.

The purpose of this utility model is that a kind of optical fibers otoscope will be provided, and this otoscope has overcome above-mentioned shortcoming, and its function also can be done the drum massage treatment.

In order to achieve the above object, the optical fibers otoscope of this utility model design is formed by being full of fibre-optic conulite, magnifier, handle, electric elements and air-blowing parts five parts.Described handle is a cavity body, electric device is packed in it, the contact of highlighted retaining and low bright retaining electric switch exposes outside the cavity, there is a spring head handle upper end, Spot light bulb is equipped with on the interior cover top of spring head, Spot light bulb has sleeve pipe outward, this telescopic other end links to each other with a side of conulite, described conulite is the concentric cavity body structure that is made of external conical sleeve and endosiphuncular tube, optical fibers is arranged between the two the cone barrel space, the bellend of its external conical sleeve is connected with the lens barrel that the low range magnifier is housed, there is air inlet to chew on the lens barrel, the pipe of connecting band ball is chewed in air inlet, constitutes the air-blowing parts thus, and the otoscope sleeve of different size can be overlapped to adapt to different patients' needs in the awl end outside of external conical sleeve.

During use, on external conical sleeve, load onto the otoscope sleeve that is suitable for the patient, energized, the light of Spot light bulb is sent to outfan by the input of fibre-optic bundle, passing the otoscope sleeve again shines in the ear chamber, the doctor observes the ear lesion cavity by low frequency multiplication magnifier, also can press ball to the in ear air-blowing, to observe the ear drum membrane motion conditions.

Two microswitch can be selected intensity of illumination for the doctor, get final product reuse high light switch when cell voltage is not enough usually with Low light switch.

The advantage of this utility model photoconduction otoscope:

1. automatic light source, the brightness height, diseased region is high-visible, has removed the doctor from and has used the trouble of frontal mirror to light, and checked outside external auditory meatus, tympanum pathological changes, the Middle Ear Diseases with this otoscope decapacitation, also can do the drum massage treatment.

2. observe and two optical axis coincidences that throw light on, and light is adjustable, divides high light and the low light level two retainings, the switch sensitivity, easy to use.

3. the otoscope sleeve pipe has large, medium and small multiplely, can select to use according to patient's situation, and demolition, installation is easy, is convenient to change, cleaning and disinfection.

4. can carry charging circuit and rechargeable battery, with stable brightness of illumination is provided and when preventing to open super-high-current impact Spot light bulb, thereby prolong the service life of Spot light bulb.

The utility model is described in further detail below in conjunction with example and accompanying drawing.

Figure (1) is the structural representation of this utility model optical fibers otoscope;

Figure (2) is the cutaway view of this utility model optical fibers otoscope;

Figure (3) is the circuit diagram of this utility model optical fibers otoscope.

Partly form by conulite, magnifier, handle, electric device and air-blowing parts five referring to figure (1), figure (2) this utility model optical fibers otoscope.Described handle 12 is a cavity body, the bottom 14 of band spring 13 is arranged at its bottom, battery 15 as power supply is loaded in the cavity body of handle, there is spring headstock 17 upper end of handle, spring head 18 is attached thereto, Spot light bulb 8 is loaded on the top of cover 9 in the spring head, the tail end of cover 9 connects circuit board 16 in the spring head, the terminal of circuit board contacts with battery 15, the lead-in wire of two microswitch 10 is connected on the circuit board 16, the hoe of switch 10 is exposed by the side of spring headstock 17, handle 12 links into an integrated entity with conulite 2 by spring head 18 and sleeve pipe 19, described conulite 2 is to constitute the concentric cavity body structure by external conical sleeve 2-1 and 2-2 and thin-walled inner cone pipe 3, fibre-optic bundle 22 is arranged between the two the cone barrel space, the light output end of fibre-optic bundle is narrow annular, the termination of light input end is rounded, from be arranged on the lateral ferrule 20 of external conical sleeve 2-2, expose and aim at Spot light bulb 8 and keep certain distance, external conical sleeve 2-2 is connected with lens barrel 4, reuse trim ring 5 is fixed in low range magnifier 6 on the lens barrel, and the trachea 23 that has a balloon 24 is connected on the short tube 7 of lens barrel 4 and constitutes the air-blowing parts; The outside of external conical sleeve 2-1 is with otoscope tube 1, and this lens barrel has large, medium and small plurality of specifications, to adapt to all ages and classes section patient's needs.

Shown in figure (3), the circuit of this utility model photoconduction otoscope mains lighting supply is provided with 10, one of two microswitch and is used for making battery 15 and Spot light bulb 8 directly to connect, and another connects battery and small electric bulb through low resistance resistance R or diode.The former is used under the insufficient situation of cell voltage, uses under the bright excessively situation of latter's small electric bulb when newly packing battery into.

The constant-current circuit that foregoing circuit also can adopt two crystal triodes and fixed resistance, variable resistance to constitute replaces.

Above-mentioned power supply can adopt nickel-cadmium rechargeable battery to replace, and in the case, the two line latches that miniature charging circuit are set in the otoscope handle 12 and expose make it directly to charge on alternating current 220V (or exchanging 110V) circuit.

Claims

1, a kind of optical fibers otoscope of forming with optical fibers, magnifier, handle, electric device is characterized in that:

(1) described handle 12 is a cavity body, and the bottom 14 of band spring 13 is arranged at its bottom, and there is spring headstock 17 upper end, and spring head 18 is attached thereto;

(2) Spot light bulb 8 of electric device is loaded on the top of cover 9 in the spring head, the tail end of cover 9 circuit board 16 interior with being loaded on handle cavity is connected in the spring head, the terminal of circuit board contacts with battery 15, the lead-in wire of two microswitch 10 is connected on the circuit board 16, the contact of switch 10 is exposed by the side of spring headstock 17, constitutes illumination section thus;

(3) handle 12 is by the spring headstock 17 of upper end, sleeve pipe 19 fuses with conulite 2, described conulite 2 is the concentric cavity body structures that are made of external conical sleeve 2-1 and 2-2 and thin-walled inner cone pipe 3, the inner chamber of its endosiphuncular tube is as optical channel, fibre-optic bundle 22 is arranged in cone barrel space between it and the external conical sleeve inwall, the light output end of fibre-optic bundle is narrow annular, the termination of light input end is rounded exposes from the lateral ferrule 20 of external conical sleeve 2-2 and aims at Spot light bulb 8 and keep certain distance, the outside of external conical sleeve 2-1 is with otoscope tube 1, and this lens barrel has greatly, in, little plurality of specifications;

(4) the low range magnifier is fixed in an end of lens barrel 4 with trim ring 5, and the other end of lens barrel is connected with external conical sleeve 2-2;

(5) lens barrel 4 is provided with short tube 7, is connected with the trachea 23 that has balloon 24, constitutes the air-blowing parts thus.

2,, it is characterized in that described lighting circuit can adopt two transistors and fixed resistance, the constant-current circuit that variable resistance constitutes according to the optical fibers otoscope of claim 1.

3,, it is characterized in that described mains lighting supply can adopt nickel-cadmium rechargeable battery according to the optical fibers otoscope of claim 1.