CN203417182U - Multifunction alimentary-canal endoscopic-surgery medical equipment - Google Patents

Abstract

The utility model discloses multifunction alimentary-canal endoscopic-surgery medical equipment. The multifunction alimentary-canal endoscopic-surgery medical equipment comprises an endoscope body and an endoscope probe, the endoscope body is provided with a catheter, air outlet valves, a light source port, an observation mirror, air inlet valves and countercurrent revisiting caps, the endoscope body is connected with the endoscope probe through the catheter, and the light source port is connected with a narrow-band multispectral LED light source. The narrow-band multispectral LED light source emits exciting light and white light to a light-homogenizing coupling module, the exciting light and the white light are transmitted to tissue to be detected, reflected light and fluorescent light which are emitted by the tissue to be detected are transmitted to a signal extraction portion, the signal extraction portion transmits extracted signal light to a signal noise-removal portion, and the signal noise-removal portion transmits noise-removed signal light to a white-light image generating portion, a narrow-band image generating portion and a fluorescent-light image generating portion. When used for conducting an alimentary-canal operation, the multifunction alimentary-canal endoscopic-surgery medical equipment can provide clear affected-part images which can be freely switched over before high-resolution white-light images, narrow-band images and fluorescent-light images.

Description

A multifunctional medical device for digestive tract endoscopic surgery

technical field

The utility model relates to a minimally invasive surgical medical instrument, in particular to a multifunctional digestive tract endoscopic surgical medical instrument. the

Background technique

Endoscope is a kind of surgical equipment that can usually be inserted into the natural cavity of the human body, such as gastrointestinal tract, respiratory tract and urinary tract, to assist doctors in the diagnosis and treatment of diseases. It is the "eye" of doctors in modern medicine. At present, endoscope has been used more and more in endoscopic surgery, and it is widely called "NOTES" (Nature Orifice Translumenal Endoscopic Surgery) in foreign literatures. Compared with other methods, it has the following advantages: (1) Minimal interference to the internal environment of the patient; (2) No need for hospitalization or only a very short period of hospitalization; (3) Small trauma, generally only need to open 3 holes in key parts. the

At present, minimally invasive surgery represented by laparoscopic endoscopic surgery is relatively mature, such as cholecystectomy, which is more common in foreign countries. the

North American Patent US 5,797,835 describes a surgical device for use in endoscopic and endoscopic surgery through external incisions in the patient's body to perform endoscopic surgical procedures at two distinct points of entry. The operation is flexible, but the imaging method is white light imaging, and the narrow field of view and two-dimensional imaging capability of the endoscope limit the doctor's ability to make accurate judgments. the

Chinese patent 201180008583.7 discloses a fluorescent endoscope device, which observes the lesion of the biological tissue by irradiating excitation light to the biological tissue and observing the lesion of the biological tissue according to the fluorescence generated from the above-mentioned biological tissue. Strong ability to distinguish diseased tissue, but it cannot integrate the current advanced narrow-band optical imaging technology, and does not have the ability to compound optical imaging. the

Utility model content

The purpose of this utility model is to overcome the above problems existing in the prior art, and to provide a multifunctional digestive tract endoscopic surgery medical device, which integrates three imaging modes of high-resolution white light imaging, narrow-band imaging and fluorescence imaging, It has changed the problem of single imaging mode of traditional endoscopic equipment and low specificity of diseased tissue imaging. the

In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the utility model is realized through the following technical solutions:

A multifunctional digestive tract endoscopic surgery medical instrument, an endoscope body and an endoscope probe, the endoscope body is sequentially provided with a catheter, an air outlet valve, a light source interface, an observation mirror, an air inlet valve and an anti-reflux cap. The endoscope body is connected to the endoscopic probe through the catheter, and the light source interface is connected to a narrow-band multi-spectral LED light source, and the narrow-band multi-spectral LED light source emits excitation light and white light to the uniform light coupling module and transmits it to the Tissue, the reflected light and fluorescence emitted by the tissue to be measured are transmitted to the signal extraction part through the optical fiber, and the signal extraction part transmits the extracted signal light to the signal denoising part, and the signal denoising part denoises the denoised signal light transmitted to the white light image generation unit, the narrowband image generation unit and the fluorescence image generation unit, which feed back the produced images to the observation mirror.

Further, the endoscopic probe includes an imaging probe, several reserved channels and several surgical forceps, and the surgical forceps communicates with the air intake valve through the air intake hole, and the air intake valve is provided with a gas pressure gauge, so The surgical forceps are one of mechanical surgical forceps, electrocoagulation forceps, and ultrasonic scalpels. The head end of the endoscopic probe is a bendable flexible structure, and the air inlet of the endoscopic probe is provided with an air pressure sensor. element. the

Further, the white light image generation part receives the reflected wide-spectrum white light signal to form a white light image, the narrowband image generation part receives the narrowband light emitted by the narrowband multi-spectral LED to form a narrowband image, and the fluorescence image generation part receives the excitation light The fluorescence generated by the illuminated tissue forms a fluorescent image. the

Further, a unidirectional anti-reflux flap is provided in the anti-reflux cap, and the unidirectional anti-reflux flap has a single-layer or double-layer structure. the

The beneficial effects of the utility model are:

(1) Integrates three imaging modes, which can be freely switched between high-resolution white light images, narrow-band images and fluorescence images, ensuring that doctors can freely choose appropriate imaging methods according to the characteristics of diseased tissues, ensuring the accuracy of endoscopic surgery ;

(2) The endoscopic probe design of the catheter only needs to open a cavity in the human body to perform minimally invasive surgery, reducing the trauma to the human body;

(3) The flexible design of the endoscopic probe and catheter enables flexible use, which overcomes the inconvenience caused by the inability to bend hard mirrors in traditional laparoscopic surgery.

Description of drawings

Fig. 1 is the structural diagram of the present utility model;

Fig. 2 is a schematic diagram of the utility model;

Fig. 3 is a structural diagram of the probe of the present invention.

Explanation of symbols in the figure: 1. Narrowband multi-spectral LED light source, 2. Uniform light coupling module, 3. Signal extraction part, 4. Signal denoising part, 5. White light image generation part, 6. Narrowband image generation part, 7. Fluorescent image generation unit, 8. White light image, 9. Narrowband image, 10. Fluorescent image, 11. Catheter, 12. Outlet valve, 13. Light source interface, 14. Observation mirror, 15. Anti-reflux cap, 16. Intake valve , 17, imaging probe, 18, reserved channel, 19, surgical forceps. the

Detailed ways

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. the

With reference to Fig. 1, Fig. 2, shown in Fig. 3, a kind of multifunctional digestive tract endoscopic operation medical device, endoscopic body and endoscopic probe, described endoscopic body is provided with catheter 11, air outlet valve 12, light source interface successively 13. The observation mirror 14, the intake valve 16 and the anti-reflux cap 15. The endoscope body is connected to the endoscopic probe through the catheter 11, and the light source interface is connected to a narrow-band multi-band LED light source 1. The narrow-band The multi-spectral LED light source 1 emits excitation light and white light to the uniform light coupling module 2 and transmits them to the tissue to be measured. The reflected light and fluorescence emitted by the tissue to be measured are transmitted to the signal extraction part 3 through optical fibers, and the signal extraction part 3 extracts the The obtained signal light is transmitted to the signal denoising part 4, and the signal denoising part 4 transmits the denoised signal light to the white light image generating part 5, the narrowband image generating part 6 and the fluorescence image generating part 7, and the white light image generating part Section 5 , narrowband image generation section 6 and fluorescence image generation section 7 feed back the produced images to the observation mirror 14 . the

Further, the endoscopic probe includes an imaging probe 17, several reserved channels 18 and several surgical forceps 19, and the surgical forceps 19 communicate with the air intake valve 16 through an air inlet, and the air inlet can also be Arranged in the special air intake channel of the endoscopic probe, the surgical forceps 19 are one of mechanical surgical forceps, electrocoagulation forceps, and ultrasonic scalpels. The air intake valve is provided with a gas pressure gauge, or the position of the air intake hole of the endoscopic probe is provided with an air pressure sensing element to monitor the inflation air pressure in the body cavity in real time. the

Further, the white light image generation part 5 receives the reflected broad-spectrum white light signal to form a white light image 8, the narrowband image generation part 6 receives the narrowband light emitted by the narrowband multi-spectral LED to form a narrowband image 9, and the fluorescence image generates The part 7 receives the fluorescence generated by the tissue irradiated by the excitation light to form a fluorescence image 10 . the

Further, a unidirectional anti-reflux flap is set inside the anti-reflux cap 15, and the unidirectional anti-reflux flap has a single-layer or double-layer structure

Further, the end of the endoscopic probe is a bendable flexible structure.

The principle of the utility model:

During the operation, the doctor can freely switch among the three imaging modes by operating the handle. The air intake valve at the rear of the endoscope body is inflated (usually CO ₂ gas), through the intake valve, enters the catheter, fills the space where the tissue to be measured is located, and stretches the tissue to achieve imaging. When the gas pressure reaches the set threshold and there is enough space to realize the endoscopic operation, the inflation is stopped. A one-way anti-reflux flap is set inside the anti-reflux cap to prevent gas from regurgitating and keep the catheter sealed. The light energy emitted by the LED is coupled to the endoscope body through the light source interface, and transmitted to the imaging probe through the light transmission medium to illuminate the target tissue. The observation mirror is an optical signal output port, connected to an external CCD or equipped with a special imaging lens, and directly observes the light source interface through the eyes to receive the light emitted from the LED light source to realize lighting. The function of the anti-reflux cap is to prevent gas from flowing back. The viewing mirror is connected to the CCD detector or observed directly through the eyes.

Claims (4)

1. A multifunctional digestive tract endoscopic surgery medical instrument, characterized in that: an endoscope body and an endoscope probe, the endoscope body is sequentially provided with a catheter (11), an air outlet valve (12), and a light source interface (13 ), an observation mirror (14), an air intake valve (16) and an anti-reflux cap (15), the endoscope body is connected to the endoscopic probe through the catheter (11), and the light source interface is connected to a narrowband multiple Spectrum LED light source (1), the narrow-band multi-spectral LED light source (1) emits excitation light and white light to the homogeneous light coupling module (2) and transmits it to the tissue to be measured, and the tissue to be measured emits reflected light and fluorescence through optical fibers to the signal extraction part (3), the signal extraction part (3) transmits the extracted signal light to the signal denoising part (4), and the signal denoising part (4) transmits the denoised signal light to A white light image generation unit (5), a narrowband image generation unit (6) and a fluorescence image generation unit (7), the white light image generation unit (5), narrowband image generation unit (6) and fluorescence image generation unit (7) will The resulting image is fed back to the sight glass (14). 2. The multifunctional medical device for digestive tract endoscopic surgery according to claim 1, characterized in that: the endoscopic probe includes an imaging probe (17), several reserved channels (18) and several surgical forceps (19) , the surgical forceps (19) communicate with the air intake valve (16) through the air inlet, and the air intake valve is provided with a gas pressure gauge, and the surgical forceps (19) are mechanical surgical forceps, electrocoagulation forceps, ultrasonic One of the scalpels, the head end of the endoscopic probe is a bendable flexible structure, and the air inlet hole of the endoscopic probe is provided with an air pressure sensing element. 3. The multifunctional medical device for digestive tract endoscopic surgery according to claim 1, characterized in that: the white light image generating part (5) forms a white light image (8) after receiving the reflected wide-spectrum white light signal, and the narrow-band image The generating part (6) receives the narrow-band light emitted by the narrow-band multi-spectral LED to form a narrow-band image (9), and the fluorescent image generating part (7) receives the fluorescence generated by the tissue irradiated by the excitation light to form a fluorescent image (10). 4. The multifunctional medical device for digestive tract endoscopic surgery according to claim 1, characterized in that: the anti-reflux cap (15) is provided with a one-way anti-reflux valve, and the one-way anti-reflux valve is single-layer or double-layered. layer structure.

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