CN215272590U

CN215272590U - Infrared endoscope suitable for blood environment imaging

Info

Publication number: CN215272590U
Application number: CN202120395371.XU
Authority: CN
Inventors: 魏来; 刘顺; 王文硕; 季敏标; 王春生
Original assignee: Zhongshan Hospital Fudan University
Current assignee: Zhongshan Hospital Fudan University
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-12-24
Anticipated expiration: 2031-02-23

Abstract

The utility model relates to an infrared endoscope suitable for blood environment imaging, which belongs to the technical field of medical instruments. The system comprises a near-infrared light source system, an illuminating optical fiber system, an endoscope platform system, a zooming system, an imaging optical fiber system, a surgical operation system and an infrared camera system for imaging; the utility model discloses utilize the principle that infrared light can pierce through suspended particle solution under certain wave band, select under suitable wave band, thereby infrared light sees through human blood and directly forms images in real time to the relevant organ structure in the circulation system to utilize operating system to do some corresponding operation operations. The system effectively avoids the radiation injury to the patient and the doctor caused by the use of X-rays in the traditional interventional operation treatment process, has higher image quality compared with the transmission image of the traditional X-rays, is more favorable for the surgeon to carry out the operation on the patient under the condition of no need of extracorporeal circulation, reduces the wound on the patient and ensures that the related surgical operation is more minimally invasive, efficient and safe.

Description

Infrared endoscope suitable for blood environment imaging

Technical Field

The utility model relates to an infrared endoscope suitable for blood environment imaging, which belongs to the technical field of medical instruments.

Background

Today, surgical endoscopic techniques are well established, as surgical techniques are developed, by which minimally invasive procedures such as resection, suturing, etc. are performed on the basis of light of visible wavelengths allowed to be used for endoscopic imaging in body cavities without congestion, such as the stomach or esophagus, where fluids may be drained. However, in cardiac surgery, due to the blood fullness in the heart body cavity, the blood cannot be directly observed through the heart by naked eyes, so that the minimally invasive surgery is realized, because an endoscope which is not related at present can image in the blood environment. To meet the needs of cardiac interventional procedures, X-ray imaging is currently the standard method for interventional cardiac procedures. Interventional cardiac surgery is performed by a large X-ray device applied to a C-arm, which will be rotated 180 degrees around the patient, to visualize the contours of the patient's heart. But this contour is blurred, only the metal catheter appears brightest in the image, which enables a rough estimate of where the catheter tip enters the cardiac structure, and the C-arm needs to be repositioned repeatedly to provide a more comprehensive view. Under X-ray guidance, the catheter can be advanced into the heart and even into the coronary arteries. In a blood vessel, the distal end of the catheter releases an optically sensitive dye that can be viewed for a distance on a radiological image before it is diffused by the blood. However, it has been shown that this technique generally does not allow an accurate assessment of the internal structure of the heart.

In addition, the X-ray itself is somewhat radiation-damaging to both the patient and the surgeon, and the patient is injected with contrast media during part of the procedure, potentially affecting the patient's body. The equipment of the X-ray perspective imaging system is too heavy and expensive, so how to find a safer, more efficient and simple light source in the technical field of cardiac intervention operation to construct a new surgical imaging system becomes the key for solving the problem.

Compared with the traditional X-ray guide system, the infrared endoscope system can enable an operator to observe the internal structure in the human blood environment more clearly, so that a surgeon can clearly identify the tissue level, the tissue can be separated finely, and the operation complications are reduced to the maximum extent. At present, the infrared endoscope system is still blank in China, and the research on the aspect is few and few.

Disclosure of Invention

The utility model aims at solving the problem of how to overcome the defects of the prior ordinary X-ray source intraoperative perspective imaging system and constructing a safer, more efficient and more convenient surgical imaging system.

In order to achieve the purpose of solving the above problems, the technical solution adopted by the present invention is to provide an infrared endoscope suitable for imaging in blood environment, comprising a near-infrared light source system, an illumination optical fiber system, an endoscope platform system, an imaging optical fiber system and an infrared camera system for imaging; the near-infrared light source system is connected with the endoscope platform system through the lighting optical fiber system, and the endoscope platform system is connected with the infrared camera system through the imaging optical fiber system.

Preferably, a zoom system for adjusting and improving the whole infrared imaging quality is arranged between the endoscope platform system and the infrared camera system.

Preferably, the near-infrared light source system comprises an infrared laser, a laser power supply and a laser cooling device; the laser power supply is connected with the infrared laser; the infrared laser is connected with the laser cooling device.

Preferably, the endoscope platform system comprises an endoscope lens and a steering and control system of an endoscope; the endoscope lens is connected with a steering and control system of the endoscope.

Preferably, the illumination optical fiber system comprises an illumination optical fiber and a matched lens group; one end of the illuminating optical fiber is connected with the infrared light source system, the other end of the illuminating optical fiber is provided with a plurality of branch light beams, and the branch light beams are arranged around the lens of the endoscope.

Preferably, the zoom system comprises a zoom converter composed of a plurality of lenses, one end of the zoom converter is connected with the end face of the imaging optical fiber arranged in the imaging optical fiber system, and the other end of the zoom converter is connected with an interface of an infrared camera arranged in the infrared camera system.

Preferably, the infrared camera system comprises a near-infrared camera and an image processing subsystem; the supporting wave band of the near-infrared camera is set to be 1000nm-2500nm, and the near-infrared camera is connected with an image processing subsystem which finally forms a high-quality blood image.

Preferably, the endoscopic platform system further comprises a surgical operating system; the operation system comprises an operation claw, an operation guide wire and a control knob; the operating claw is arranged at the head end of the endoscope lens and comprises scissors, a grasper and a needle holder; the operating claw is connected with the control knob through an operating guide wire.

Preferably, the infrared laser outputs near infrared waves of two wavelengths, 1320nm for detailed aspect imaging and 1710nm for penetration depth imaging.

Preferably, the image processing subsystem is provided with processing software for synthesizing the images of two different wave bands so as to ensure the details and the depth of the images.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a be suitable for blood environment formation of image's infrared endoscope utilizes the principle that infrared ray can penetrate suspended particle solution under specific wave band and carry out the formation of image, carries out comparatively clear formation of image to the corresponding structure of human body under the environment of human full blood, compares traditional X line formation of image, has high quality, radiationless, easy operating characteristics, provides more accurate operation image for the operation doctor, has avoided effectively using the radiation injury that X ray brought for patient, doctor in the traditional intervention operation treatment process; thereby benefiting both the doctor and the patient. Compared with the traditional X-ray transmission image, the X-ray transmission image has higher image quality, is more beneficial to a surgeon to perform an operation on a patient under the condition of no need of extracorporeal circulation, reduces the wound on the patient, and ensures that the related surgical operation is more minimally invasive, efficient and safe.

Drawings

Fig. 1 is a schematic diagram of an embodiment of an infrared endoscope suitable for imaging in a blood environment according to the present invention.

Fig. 2 is a schematic structural view of an endoscope platform system according to the present invention.

Fig. 3 is a schematic structural diagram of the lens head end of the infrared endoscope of the present invention, which is suitable for imaging in blood environment.

Fig. 4 is an image effect diagram of the infrared endoscope in the blood environment in the animal body, which is suitable for the blood environment imaging of the present invention.

Reference numerals: 1. an infrared endoscope; 2. a near-infrared light source system; 3. an illumination fiber optic system; 4. a zoom system; 5. an endoscope platform system; 6. an imaging fiber optic system; 7. an infrared camera system; 8. a surgical operating system; 9. a heart; 10. an endoscope lens; 21. a laser; 22. a laser power supply; 23. a laser cooling device; 31. an illumination fiber; 33. a branched light beam; 71. an infrared camera; 72. an image processing subsystem; 81. an operating claw; 83. a control knob; 91. a left ventricle; 92. a heart valve.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:

as shown in fig. 1-4, the utility model provides an infrared endoscope 1 suitable for imaging in blood environment, which comprises a near-infrared light source system 2, an illumination optical fiber system 3, an endoscope platform system 5, an imaging optical fiber system 6 and an infrared camera system 7 for imaging; the near-infrared light source system 2 is connected with an endoscope platform system 5 through an illumination optical fiber system 3, and a zoom system 4 for adjusting and improving the whole infrared imaging quality is arranged between the endoscope platform system 5 and an infrared camera system 7. The near-infrared light source system 2 comprises an infrared laser 21, a laser power supply 22 and a laser cooling device 23; the laser power supply 22 is connected with the infrared laser 21; the infrared laser 21 is connected to a laser cooling device 23. The endoscope platform system 5 comprises an endoscope lens 10 and a steering and control system of the endoscope; the endoscope lens 10 is connected to a steering and control system of the endoscope. The illumination optical fiber system 3 comprises an illumination optical fiber 31 and a matched lens group; one end of the illumination fiber 31 is connected to the infrared light source system 2, and the other end of the illumination fiber 31 is provided with a plurality of branched light beams 33, and the branched light beams 33 are provided around the endoscope lens. The zoom system 4 includes a zoom converter composed of a plurality of lenses, one end of the zoom converter is connected to the end face of the imaging optical fiber provided in the imaging optical fiber system 6, and the other end is connected to an interface of the infrared camera 71 provided in the infrared camera system 7. The infrared camera system 7 comprises a near-infrared camera 71 and an image processing subsystem 72; the support wavelength band of the near infrared camera 71 is set to 1000nm to 2500nm, and the near infrared camera 71 is connected to an image processing subsystem 72 that ultimately forms a high quality blood image. The endoscope platform system 5 further includes a surgical operating system 8; the operation system 8 comprises an operation claw 81, an operation guide wire and a control knob 83; the operation claw 81 is arranged at the head end of the endoscope lens 10 and comprises scissors, graspers and needle holders; the operating pawl 81 is connected to a control knob 83 via an operating guide wire. The infrared laser 21 outputs near infrared waves including two wavelengths, 1320nm for detailed aspect imaging and 1710nm for penetration depth imaging. The image processing subsystem 72 synthesizes the images of the two different wave bands, thereby ensuring the details and the depth of the images.

For overcoming the drawback of perspective imaging system in current ordinary X ray light source art, the utility model designs an use near-infrared light as the light source, an endoscope system of formation of image in human blood organically combines light source, formation of image, operation three major systems with the endoscope as the platform, has characteristics such as easy and simple to handle, equipment is small, the imaging quality height. Particularly, the utility model comprises the following technical scheme.

An infrared endoscope 1 suitable for blood environment imaging; the method comprises the following steps: a near infrared light source system 2 for generating imaging wave band suitable for blood, an illuminating optical fiber system 3 for transmitting light source, a zoom system 4 for adjusting and improving the whole infrared imaging quality, an endoscope platform system 5 for carrying relevant optical elements, an imaging optical fiber system 6 for transmitting light reflected by objects in blood to a camera, an infrared camera system 7 for imaging and an operating system 8 for operating the operation of an operator. The near-infrared light source system 2 comprises an infrared laser 21, a laser power supply 22 and a laser cooling device 23, wherein the laser 21 can output near-infrared light rays with different powers, the output power is controlled by the corresponding laser power supply 22, and the power can be linearly output along with the change of power supply voltage and current. The illumination optical fiber system 3 comprises an illumination optical fiber 31 and a matched lens group, one end of the illumination optical fiber 31 is connected with the infrared light source system 2, the other end of the illumination optical fiber is divided into a plurality of branch light beams 33, and each light beam is uniformly distributed around the head end of the endoscope as a single independent illumination optical fiber. The zoom system 4 comprises a zoom converter composed of a plurality of lenses, one end of the zoom converter is connected with the end face of the imaging optical fiber of the endoscope platform system 5, the other end of the zoom converter is connected with an interface of the infrared camera 71, and the reflected light transmitted by the imaging optical fiber can be refracted by a lens group, so that the reflected light can be accurately projected on the surface of a photosensitive element of the infrared camera 71. The endoscope platform system 5 comprises a steering and controlling system of the endoscope, can automatically control the pointing direction of the head end of the endoscope through a control handle by utilizing a snake bone system shuttled at the head end, can provide a stable platform for the whole infrared endoscope system, and can embed an imaging optical fiber system 6, an illuminating optical fiber system 3 and a surgical operation system 8 of the system. The imaging optical fiber system 6 is composed of a plurality of multi-beam imaging optical fibers with a high pixel number, and can effectively transmit light reflected by an object to the other end in parallel. The infrared camera system 7 includes a near-infrared camera 71 and an image processing subsystem 72, wherein the near-infrared camera 71 supports a wavelength range of 1000nm to 2500nm, the infrared camera 71 converts the reflected light into an electrical signal and transmits the electrical signal to the image processing subsystem 72, and finally, a high-quality blood image is formed through software image processing. The operation system 8 comprises an operation claw 81, an operation guide wire and a control knob 83, wherein the operation claw 81 is positioned at the head end of the endoscope and comprises various types of surgical instruments such as scissors, graspers and needle holders, the operation claw 81 is connected with the control knob 83 through the operation guide wire, and an operator can control the operation claw 81 at the head end of the endoscope to move and open and close through the control knob 83.

The infrared laser 21 mainly outputs near infrared waves with two wavelengths of 1320nm and 1710nm, and the 1710nm waveband is mainly used for penetration depth imaging and the 1320nm waveband is mainly used for detail imaging by utilizing the mie scattering principle of the near infrared rays in the suspended particle solution.

The laser cooling device 23 is a circulating temperature control device, which can ensure that the laser 21 constantly works in the optimal environment.

The illumination fibers 31 can be uniformly distributed at the edge of the endoscope head end according to different numbers of branch beams, and the illumination fibers 31 can transmit near-infrared light rays with high transmission efficiency.

The head end of the illumination optical fiber branch bundle 33 is provided with a corresponding matched lens to ensure that the optical fibers are emitted in uniform parallel light.

The light path in the zoom system 4 is optimized according to the refraction rule of the near-infrared light in the lens, and the manufacturing material of the lens is also optimized aiming at the near-infrared light, so that the imaging quality is ensured.

In the endoscope platform system 5, system elements with different parameters can be replaced according to standard sizes, and the system can be combined according to different operation types.

The imaging optical fiber has the characteristics of high pixel number, low loss rate and the like, and the imaging optical fiber is optimized in the aspects of materials and design aiming at near-infrared light, so that the stability and high quality of image transmission are ensured.

The infrared camera system 7 synthesizes the two different wave band images through an image processing system including artificial intelligence software and the like, thereby ensuring the details and the depth of the image.

The operation system 8 is of a uniform standard size and can be randomly combined according to the operation requirement in the operation, thereby ensuring the versatility of the system.

The utility model discloses the principle is: the system utilizes the principle that infrared rays can penetrate through suspended particle solution under a certain waveband, and the system directly images related organ structures in a circulation system in real time by penetrating human blood under a proper waveband. The utility model discloses can carry out comparatively clear formation of image to human corresponding structure under human blood environment, compare traditional X line formation of image, have the characteristics of high quality, radiationless, easy operation, provide more accurate operation image for the operation doctor to benefit to the patient.

Examples

Referring to fig. 1, 2, 3 and 4, when an operator prepares to perform a heart valve repair operation, firstly, safely put the patient into an anesthetic state, preferentially turn on the laser cooling device 23 in the near-infrared light source system 2, after the temperature of the laser 21 reaches the optimal working temperature, enter the path from the left apex of the heart of the patient, select an incision, extend the infrared endoscope lens 10 into the left ventricle 91 of the heart 9 of the patient, turn on the laser 21, emit infrared light of two wave bands of 1320nm and 1710nm from the laser 21, pass through the illumination fiber system 3, uniformly irradiate in blood by using the head end distributed fiber bundle-branch light beam 33, reflect the reflected light inside the heart back into the infrared camera 71 sensor through the imaging fiber system 6, finally pass through the image processing system 72, synthesize the infrared images of the two wave bands, finally image, the operator can perform imaging according to the specific requirements of the imaging in the operation, the power of the output near-infrared light source is controlled by changing the voltage and the current of the laser power supply 22, so that the brightness and the depth of imaging are changed, meanwhile, the focal length of the infrared endoscope can be adjusted through the zoom system 4, the operation in the operation of an operator is met, the operator can control the operation claw 81 at the head end of the infrared endoscope through the operation system 8 by using the control knob 83, various surgical instruments are switched at will, and the repair of the heart valve 92 is completed.

All operation processes are monitored and recorded through the image processing system 72, and the safety and traceability of the whole operation are ensured.

The utility model discloses a use method

Before infrared endoscope 1 uses, open infrared laser instrument power 22 and laser instrument water cooling plant earlier, treat that infrared laser instrument 21 reaches operating temperature after, open central processing system and image acquisition system, stretch into the art district with the endoscope, open infrared laser instrument 21, select the infrared laser output of two wave bands of 1320nm and 1710nm respectively, adjust electric current and voltage to a suitable output power, can satisfy the formation of image requirement in art district just, then adjustment central processing system and zoom system 4, constantly improve the imaging quality of image, thereby the safety of operation has been guaranteed, high-efficient completion.

The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.

Claims

1. An infrared endoscope suitable for blood environment imaging is characterized in that: the system comprises a near-infrared light source system, an illuminating optical fiber system, an endoscope platform system, an imaging optical fiber system and an infrared camera system for imaging; the near-infrared light source system is connected with the endoscope platform system through the lighting optical fiber system, and the endoscope platform system is connected with the infrared camera system through the imaging optical fiber system.

2. The infrared endoscope suitable for imaging of blood environment as set forth in claim 1, wherein: and a zooming system for adjusting and improving the whole infrared imaging quality is arranged between the endoscope platform system and the infrared camera system.

3. The infrared endoscope suitable for imaging of blood environment as set forth in claim 2, wherein: the near-infrared light source system comprises an infrared laser, a laser power supply and a laser cooling device; the laser power supply is connected with the infrared laser; the infrared laser is connected with the laser cooling device.

4. An infrared endoscope suitable for imaging of blood environments as defined in claim 3, wherein: the endoscope platform system comprises an endoscope lens and a steering and control system of an endoscope; the endoscope lens is connected with a steering and control system of the endoscope.

5. The infrared endoscope suitable for imaging of blood environment as set forth in claim 4, wherein: the illumination optical fiber system comprises an illumination optical fiber and a matched lens group; one end of the illuminating optical fiber is connected with the infrared light source system, the other end of the illuminating optical fiber is provided with a plurality of branch light beams, and the branch light beams are arranged around the lens of the endoscope.

6. The infrared endoscope suitable for imaging of blood environment as set forth in claim 5, wherein: the zooming system comprises a zooming converter formed by combining a plurality of lenses, one end of the zooming converter is connected with the end face of an imaging optical fiber arranged on the imaging optical fiber system, and the other end of the zooming converter is connected with an interface of an infrared camera arranged on the infrared camera system.

7. The infrared endoscope suitable for imaging of blood environment as set forth in claim 6, wherein: the infrared camera system comprises a near-infrared camera and an image processing subsystem; the supporting wave band of the near-infrared camera is set to be 1000nm-2500nm, and the near-infrared camera is connected with an image processing subsystem which finally forms a high-quality blood image.

8. The infrared endoscope suitable for imaging of blood environment as set forth in claim 7, wherein: the endoscopic platform system further comprises a surgical operating system; the operation system comprises an operation claw, an operation guide wire and a control knob; the operating claw is arranged at the head end of the endoscope lens; the operating claw comprises scissors, a grasper and a needle holder; the operating claw is connected with the control knob through an operating guide wire.

9. The infrared endoscope suitable for imaging of blood environment as set forth in claim 8, wherein: the infrared laser outputs near infrared waves of two wavelengths, 1320nm for detail aspect imaging and 1710nm for penetration depth imaging.

10. The infrared endoscope suitable for imaging of blood environment as set forth in claim 9, wherein: the image processing subsystem is provided with processing software for synthesizing the images of two different wave bands so as to ensure the details and the depth of the images.