CN2719214Y - Capsule type gastroscope - Google Patents

Abstract

The utility model relates to a capsule type gastroscope, which is used for endoscopy of the esophagus, the stomach, etc., and comprises a capsule shell, a translucent cover which is designed on the front end of the capsule shell, an LED, focusing lens, a CCD image sensor (or a CMOS image sensor) and a controlled circuit board. The LED and the focusing lens are installed in the capsule shell, and a CCD image sensor or a CMOS image sensor is installed behind the focusing lens. The controlled circuit board is installed in the capsule shell, and controls the LED to work. The CCD image sensor or the CMOS image sensor is connected with power source conductors, and supplies the power source from the exterior. The CCD image sensor or the CMOS image sensor is connected with video conductors, and transmits video signals to an external device through the video conductors. The capsule shell is connected with pull wires. The insertion procedure is altered to the self swallow of patients. So the endoscopy for the upper digestive tract is more convenient and comfortable, and patients are easy to accept. Because the capsule type gastroscope is provided with conductors, video conductors and pull wires. So the position of the capsule type gastroscope can be controlled, and the capsule type gastroscope can be used for continuous, dynamic and real-time observation of certain diseases of the upper digestive tract.

Description

The capsule-type gastroscope

Technical field

This utility model relates to the Medical Instruments of a kind of people's of being used for upper gastrointestinal examination, is used for the endoscopy of esophagus, stomach etc., particularly a kind of capsule-type gastroscope.

Background technology

At present, the endoscopic assistance that is used for esophagus, stomachoscopy clinically mainly contains fibergastroscope and electronic gastroscope.Inspection method is observed in esophagus, gastral cavity by inserting long " pipeline " (technical term should be the gastroscope insertion section) from patient's mouth to esophagus, gastric, to diagnose and to treat.

Conventional endoscope comprises: first, and it has point, and this first is inserted in the patient body, is used for observing and treatment; And control device, it is arranged on the outside, and is connected with first.First has in point such as irradiation system and the such electric device of imageing sensor.Control device is powered to these electric devices by electric wire.

Conventional endoscope can make patient feel very pain in being inserted into the patient body time.For example, when point approach patient throat, patient can feel very pain.And when point in vivo the time, patient continues sense pain, thereby makes patient produce burden.In order to alleviate patient's pain, use a kind of compact capsule endoscope body now.Patient only needs swallowable capsule endoscope body, works as the capsular endoscope body afterwards and is positioned at during the patient body, and patient generally only feels mild pain, perhaps imperceptible pain.

Yet, the following problem of capsular endoscope ontological existence:

The first, it comprises battery, and battery can provide and carry out the electric power that observation post needs in the patient body; Yet power supply is limited.Excrete to the capsular endoscope body during usually, from swallowablecapsule endoscope body 1 and will spend about 30 hours.Because short of electricity, conventional capsular endoscope can't be realized the observation to whole passage in the human body.In order to address this problem, considered the battery that uses a plurality of batteries or memory capacity to increase.Yet, increase the battery volume capsular endoscope required size is increased.

Second, the irradiation source that uses with conventional capsular endoscope comprises Halogen light and LED, they can be such as the observation in narrow, the tubular portion of the such human body of esophagus enough brightness are provided, but can not be for such observation than in the large space provides enough brightness such as the harmonization of the stomach large intestine.In order to address this problem, use bigger LED to guarantee enough brightness.Yet capsular diameter D must increase along with the increase of irradiation system size.In addition, the bigger LED of operation can need more electric power.In order to address this problem, generally need the battery of more batteries or memory capacity increase.As a result, capsular total length must increase, and increases so that adapt to necessity of one or more battery volumes.Yet, increase the capsule total length and can weaken capsular endoscope in the advantage that alleviates aspect patient's pain.

Application number is 03100098.3, the application people is the patent application for " capsular endoscope " of Olympus Optical Co., Ltd, denomination of invention, a kind of capsular endoscope body is provided, this capsular endoscope body is provided with the spatial frequency characteristic transducer, and this spatial frequency characteristic transducer can make the optical transfer function of the imaging system of capsular endoscope keep constant substantially in certain scope of focusing position.The pentrution of the image that obtains from the capsular endoscope body increases by signal processing, so that the influence of cancellation spatial frequency characteristic transducer.And, in the capsular endoscope body, can provide signal processing, be used to reduce because the picture quality that manufacturing tolerance causes changes.Yet preferably, some signal processing can carry out in the receptor that separates with the capsular endoscope body.

Application number is 03119714.0, the application people is for the patent application for " capsular endoscope " of Olympus Optical Co., Ltd, denomination of invention, discloses a kind of capsular endoscope, comprising: the illuminator that is used to shine an object; Be used for imaging device to object image-forming; With the transparency cover with a center of curvature, described transparency cover covers illuminator and imaging device; Wherein imaging device comprises objective lens optical system and image sensor semiconductor device; Illuminator is arranged with respect to image sensor semiconductor device, make when the time from object side observation capsular endoscope, one with respect to the zone of a light-emitting zone symmetric arrangement of the optical axis of objective lens optical system and illuminator and a region overlapping of image sensor semiconductor device, but not with any region overlapping that is used for image detection of image sensor semiconductor device.

The capsular endoscope of recent clinical use, very fast because its position in vivo is difficult to artificial control by esophagogastric speed, be difficult to obtain the image of needs, so be mainly used in the inspection of intestinal.And can not be used for esophagogastric inspection.Above prior art has the following disadvantages:

1, operational approach is an insertion.Make patient's fear from oral intubation to the caused discomfort of esophagus stomach function regulating and be difficult to acceptance, most patients are forced to be checked, and check that mostly impression later is " again not being subjected to this crime next time ".

2, the sterilization of scope and cross infection.Because of costing an arm and a leg of equipment, the existing national conditions of China make a lot of hospitals be difficult to realize a people one mirror, and cross infection is unavoidable, thereby can cause some transmission of disease.

3, need to use narcotics.May bring some side effect and complication thus.

4, dynamic real-time is observed the state of an illness continuously.Because the inspection method of gastroscope is limit at present, be difficult to realize some disease long-time continuous dynamic real-time is observed.

Summary of the invention

The purpose of this utility model provide a kind ofly can carry out continuously some disease of upper digestive tract, dynamically, the capsule-type gastroscope of Real Time Observation.

This utility model capsule-type gastroscope, comprise capsule housing, the Front-end Design of capsule housing has translucent cover, light emitting diode and amasthenic lens are installed in the capsule housing, the amasthenic lens back is equipped with ccd image sensor or cmos image sensor, control circuit board is installed, the work of control light emitting diode in the capsule housing; It is characterized in that: ccd image sensor or cmos image sensor are connected with power lead, by outside supply power; Ccd image sensor or cmos image sensor are connected with the video lead, by video lead transmission video signal; Described power lead stretches out capsule housing with the video lead and is connected with external equipment outward.

According to described capsule-type gastroscope, it is characterized in that: be connected with draught line on the capsule housing.

According to described capsule-type gastroscope, it is characterized in that: the connecting circuit plate is installed in the capsule housing; Power lead is connected with the connecting circuit plate respectively with the video lead, and the outfan of connecting circuit plate is connected with video lead and power lead.

According to described capsule-type gastroscope, it is characterized in that: capsule housing adopts metal shell.

Advantage of the present utility model:

1, is used for tentative diagnosis and census operations to upper digestive tract and small intestinal jejunum part disease.Because the capsule-type gastroscope has power lead and video lead and draught line, the position of may command capsule-type gastroscope can be used for continuous, dynamic, Real Time Observation to some disease of upper digestive tract.Continuously dynamic real-time is treated decision-making reliable basis is provided the doctor that is viewed as of some disease of upper digestive tract, makes things convenient for research and teaching work.

2, change to insert and be operating as patient and swallow voluntarily, make superior gastrointestinal endoscopy more convenient, more comfortable, patient is more acceptant.

3, because charged pool not in the capsule-type gastroscope, and by the power line conduction, can use for a long time and light strong.In addition because charged pool not in the capsule-type gastroscope can reduce the capsule volume.

Do not need when 4, patient checks to use narcotics and tranquilizer, avoid the generation of drug side effect and complication, check safer.

5, realize a people one mirror, avoid cross infection, reduce pathophoresis.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is a use sketch map of the present utility model.

In the accompanying drawing: 1, translucent cover; 2, light emitting diode; 3, amasthenic lens; 4, light emitting diode lead; 5, ccd image sensor or cmos image sensor; 6, control circuit board; 7, capsule housing; 8, power lead; 9, connecting circuit plate; 10, draught line; 11, video lead and power lead; 12, video lead.

The specific embodiment

This utility model capsule-type gastroscope is to adopt multiple existing known technology component invention to form.

The video image dendoscope system is a core component of the present utility model, and key technology is amasthenic lens and ccd image sensor or cmos image sensor.This utility model adopts prior art amasthenic lens and ccd image sensor or cmos image sensor.This video image dendoscope system bulk is little, low in energy consumption, fine definition, high-resolution, high reliability, angle of visibility is at 120 degree, the depth offield 3～10mm, CCD is installed in like in the capsule shape housing, the profile of this capsule shape housing and size are similar to the capsule of medicine, are convenient to patient and swallow, and its outer housing is transparent, waterproof, corrosion-resistant, withstand voltage, illumination is finished by light emitting diode.

CCD (Charge Coupted Device is a charge-coupled image sensor) imageing sensor is the most frequently used sensor devices, is widely used in products such as scanner, digital camera, DV.The operation principle of ccd image sensor is: the subject reflection ray passes to camera lens, through lens focus to the CCD chip, CCD gathers corresponding charge according to the power of light, through periodic discharge, produce the signal of telecommunication of expression one width of cloth width of cloth picture, export the composite video signal of a standard by the lead-out terminal of photographic head.This video signal is connected with video-frequency monitor with image processing system by vision cable, just can sees image.Ccd image sensor image quality height, but cost an arm and a leg.

The imageing sensor image quality slightly is inferior to ccd image sensor to CMOS (Complementary Metal Oxide Semiconductor, i.e. complementary metal oxide semiconductors (CMOS)), but price is low.

This utility model capsule-type gastroscope as shown in Figure 1 and Figure 2, comprisecapsule housing 7, the Front-end Design ofcapsule housing 7 hastranslucent cover 1,light emitting diode 2 andamasthenic lens 3 are installed in thecapsule housing 7,amasthenic lens 3 back are equipped with ccd image sensor orcmos image sensor 5, and 2 work ofcontrol circuit board 6 control light emitting diodes are installed in thecapsule housing 7; It is characterized in that: ccd image sensor orcmos image sensor 5 are connected with power lead 8, by outside supply power; Ccd image sensor orcmos image sensor 5 are connected withvideo lead 12, byvideo lead 12 transmission video signals; Described power lead 8 stretches outcapsule housing 7 withvideo lead 12 and is connected with external equipment such as electronic computer outward.

When adopting ccd image sensor in this utility model,, the capsule-type gastroscope can be made into reusable because ccd image sensor image quality height costs an arm and a leg.When adopting cmos image sensor in this utility model,, can be made into disposable because the cmos image sensor price is low.

Capsule housing 7 can adopt plastics, glass, lucite or metal material etc.Translucent cover 1 can adopt plastics, glass, lucite etc.When adopting metal shell, capsule housing 7 (not comprising translucent cover 1) is convenient to be made into reusable capsule-type gastroscope.

This utility model can be controlled the position of capsule-type gastroscope in human body by video lead and power lead 11.Also can oncapsule housing 7, connect in additiondraught line 10 control the position of capsule-type gastroscope in human body simultaneously draughtline 10 also can be used as guide wire and use.

For the ease of installing in the describedcapsule housing 7 connecting circuit plate 9 is installed; Power lead 8 is connected with connecting circuit plate 9 respectively withvideo lead 12, and the outfan of connecting circuit plate 9 connects video lead and power lead 11.Video lead and power lead 11 are connected with external equipment such as electronic computer.

Whole capsule-type gastroscope system can divide five parts to form: video image dendoscope system, trailer system, image processing system, video-frequency monitor, accessories section.

(1) video image dendoscope system

The video image dendoscope system is a core component of the present utility model, and key technology is amasthenic lens and ccd image sensor or cmos image sensor.This utility model adopts prior art amasthenic lens and ccd image sensor or cmos image sensor.This video image dendoscope system bulk is little, low in energy consumption, fine definition, high-resolution, high reliability, angle of visibility is at 120 degree, the depth offield 3～10mm, ccd image sensor is installed in like in the capsule shape housing, the profile of this capsule shape housing and size are similar to the capsule of medicine, are convenient to patient and swallow, and its outer housing is transparent, waterproof, corrosion-resistant, withstand voltage, illumination is finished by light emitting diode.

(2) trailer system

Be equivalent to the scope cable, it constitutes branch two parts.The one, lead connects capsule body and image processing system, and the 2nd, draught line, control capsule body position also can be done guide wire and be used.The very thin softness of specification requirement, anti-bending repeatedly has certain intensity (traction force).As the technical conditions permission, the image of video image dendoscope system is transmitted as wireless transmission, and trailer system is a draught line so.Perhaps lead one end connects capsule body, and the other end connects transmitter, with video-frequency monitor etc. be wireless connections, make clinical use more convenient.

(3) image processing system

There is matured product in market, also can develop image processing software as required again.Video-frequency monitor and image processing system also can unite two into one, and are replaced by electronic computer or notebook computer, also can develop new video card and image file process software system.

(4) video-frequency monitor

There is matured product in market, as Sony's monitor etc.

(5) accessories section

Various dedicated conduits, two-chamber or multi-cavity catheter, lead, seal wire, air pump, plug connector, esophagus draw in the net special accessories, dedicated port pad, biopsy forceps, taking foreign body special accessories etc.

Claims (4)

1, a kind of capsule-type gastroscope, comprise capsule housing (7), the Front-end Design of capsule housing (7) has translucent cover (1), light emitting diode (2) and amasthenic lens (3) are installed in the capsule housing (7), amasthenic lens (3) back is equipped with ccd image sensor or cmos image sensor (5), and control circuit board (6) control light emitting diode (2) work is installed in the capsule housing (7); It is characterized in that: ccd image sensor or cmos image sensor (5) are connected with power lead (8), by outside supply power; Ccd image sensor or cmos image sensor (5) are connected with video lead (12), by video lead (12) transmission video signal; Described power lead (8) stretches out capsule housing (7) with video lead (12) and is connected with external equipment outward.

2, capsule-type gastroscope according to claim 1 is characterized in that: be connected with draught line (10) on the capsule housing (7).

3, capsule-type gastroscope according to claim 1 and 2 is characterized in that: connecting circuit plate (9) is installed in the capsule housing (7); Power lead (8) is connected with connecting circuit plate (9) respectively with video lead (12), and the outfan of connecting circuit plate (9) is connected with video lead and power lead (11).

4, capsule-type gastroscope according to claim 1 and 2 is characterized in that: described capsule housing (7) adopts metal shell.

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