CN217310575U

CN217310575U - Fistula minimally invasive surgery device

Info

Publication number: CN217310575U
Application number: CN202220613734.7U
Authority: CN
Inventors: 郭明浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-08-30
Anticipated expiration: 2032-03-21
Also published as: DE202023101308U1

Abstract

The utility model relates to a fistula minimal access surgery device, including the fistula mirror, liquid injection suction unit, the laser cauterization unit, the fistula mirror is equipped with visual probe, probe joint, light source and display device, be equipped with the injection syringe in the visual probe, the fistula mirror is equipped with the injection interface, liquid injection suction unit passes through the injection interface connection the injection syringe, the laser cauterization unit is equipped with laser fiber, laser fiber follows the injection interface penetrates the injection syringe. The utility model has the advantages that: the front end of the probe is provided with an exploring lens, the probe is particularly suitable for exploring a thin fistula, the injection tube is used for connecting various diagnosis and treatment devices and cleaning the exploring lens, the splashing tongue at the front end of the probe can obviously improve the effects of flushing the fistula and cleaning the lens, and the operation treatment effects of the anal fistula and other fistula tracts can be obviously improved through the display device and the laser treatment device.

Description

Fistula minimally invasive surgery device

Technical Field

The utility model relates to a fistula diagnosis and treatment device especially relates to a fistula minimal access surgery device.

Background

Anal fistula is a common and frequently encountered surgical disease and is mainly treated by operation. The principle of surgical treatment of anal fistulas involves positioning the fistula tract and internal orifice, eliminating the internal orifice and any communicating fistula tracts, while maximizing anal sphincter function. Anal fistulas and high anal fistulas, which are deeper from the perianal skin, need to be diagnosed and treated by existing instruments and apparatuses, and the commonly used methods are: nuclear magnetic resonance, ultrasound, X-ray fistulography, probes, and the like. The nuclear magnetic resonance, the ultrasound and the X-ray fistula imaging can be used as the auxiliary diagnosis before the operation, and the probe is a common instrument in the operation.

The probe is small and simple in structure, is usually a hard or bendable metal thin stick or thin tube with an elliptical head at the head end, is penetrated into the fistula, and is comprehensively judged by combining doctor diagnosis and treatment experience, doctor finger touch and the like to know the position of the fistula, the position of the inner opening and the external contour to perform diagnosis and treatment. Under normal conditions, the probe is inserted into the anal fistula pipeline from the external orifice and penetrates out from the internal orifice, so that the external orifice, the anal fistula and the internal orifice of the whole anal fistula are clearly controlled, and the doctor performs operation treatment according to the control. However, the current commonly used probe has no visual function, can not observe the anatomical structure in the fistula and can not see the internal orifice, so that the risk of false detection exists, and the false passage situation also occurs, so that doctors mistakenly think that the fistula and the internal orifice are detected, and part of normal tissues are cut off, and the actual part of the fistula tract and the internal orifice are left, thereby causing the operation failure. Meanwhile, the probe does not have the functions of injecting liquid into the fistula or extracting liquid from the fistula, and some hollow probes can inject liquid into the fistula, but do not have a light source channel and a visual function, so that the laser instrument cannot be guided into the fistula for treatment.

Because fistulas of fistula diseases such as anal fistula are thin, the diameter is less than 3mm generally, and a visual probe or a fistuloscope suitable for the anal fistula needs to reach the thin outer diameter of 2mm, the medical probe device with the video, lighting and diagnosis and treatment pipelines can obviously improve the diagnosis and treatment effect of the fistula diseases.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fistula minimal access surgery device, adopt the thin visual probe of diameter, improve the operation treatment effect of anal fistula.

In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides a fistula minimal access surgery device, includes the fistula mirror, liquid injection suction unit, and the laser cauterization unit, the fistula mirror is equipped with visual probe, probe connector, light source and display device, be equipped with the injection syringe in the visual probe, the fistula mirror is equipped with the injection interface, liquid injection suction unit passes through the injection interface connection the injection syringe, the laser cauterization unit is equipped with laser fiber, laser fiber follows the injection interface penetrates the injection syringe.

Furthermore, in order to realize the visual effect, the front end of the visual probe is provided with an exploring lens and a light-transmitting lens, an image guide beam connected with the exploring lens and a light guide beam connected with the light-transmitting lens are arranged in the visual probe, and the front end of the visual probe is provided with an outlet of the injection tube.

Furthermore, in order to insert a thin fistula, the outer diameter of the visual probe is 2mm +/-0.005 mm, the length of the visual probe is 200 mm-500 mm, and the outer tube of the probe is made of mild steel; the outer diameter of the injection tube is 0.9 mm +/-0.005 mm, and the wall thickness of the injection tube is 0.1mm +/-0.005 mm.

Furthermore, in order to enhance the structural strength of the head of the outer tube of the probe, improve the flushing effect and clean the probing joint, the front end of the visual probe is provided with a head outer tube, the front end of the head outer tube is provided with a splashing tongue bent towards the center direction of the outer tube of the probe, and the position of the splashing tongue corresponds to the outlet of the injection tube.

Furthermore, for connecting equipment and convenient operation, the tail of the visual probe is provided with a probe joint, the probe joint is connected with the illumination light source and the display equipment, the injection interface is arranged on the probe joint, and the injection interface is communicated with the injection tube.

Furthermore, in order to facilitate the implementation of the fistula minimally invasive surgery, the injection interface is provided with an optical fiber interface, a first pipe joint and a second pipe joint, the center of the injection interface is provided with an interface through hole, the axis of the interface through hole corresponds to the injection pipe port of the probe joint, the optical fiber interface is arranged at the end of the injection interface, and the axis of the optical fiber interface is coaxial with the interface through hole; the first pipe joint and the second pipe joint are arranged on the side wall of the injection interface, and the optical fiber interface, the first pipe joint and the second pipe joint are communicated with the interface through hole.

Furthermore, in order to control the opening and closing of the injection interface and the optical fiber interface, a silica gel cap is sleeved on the optical fiber interface, hoses are sleeved on the first pipe joint and the second pipe joint, and pipe clamps are arranged on the hoses.

Furthermore, in order to facilitate replacement and expansion of the injection port, the injection port is mounted on the probe connector through threads, and a sealing ring is arranged between the injection port and the probe connector.

Further, the liquid injection and suction unit includes a transfusion bottle, a suction pump, and a syringe.

Further, the laser cauterization unit includes a holmium laser.

The utility model has the advantages that: the front end of the probe is provided with an exploring lens, the probe is particularly suitable for exploring a thin fistula, the injection tube is used for connecting various diagnosis and treatment devices and cleaning the exploring lens, the splashing tongue at the front end of the probe can obviously improve the effects of flushing the fistula and cleaning the lens, and the operation treatment effects of the anal fistula and other fistula tracts can be obviously improved through the display device and the laser treatment device.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

fig. 2 is a view of the external structure of the fistula mirror of the invention;

FIG. 3 is a cross-sectional view of the fistula mirror structure of the present invention;

FIG. 4 is a view of the structure of the visual probe of the present invention;

FIG. 5 is a view of the head structure of the visual probe of the present invention, hiding the light guide bundle;

fig. 6 is a sectional view B-B of fig. 5.

The image guide bundle and the light guide bundle are drawn in an exaggerated or schematic way due to the fact that the optical fibers of the image guide bundle and the light guide bundle are too thin.

Detailed Description

Referring to fig. 1 to 6, a fistula minimally invasive surgery device comprises a fistula scope, a liquid injection and suction unit and a laser cauterization unit, wherein the fistula scope is provided with a visual probe 10, an illuminating light source 20 and a display device 30, an injection tube 14 is arranged in the visual probe, the fistula scope is provided with an injection interface 70, the liquid injection and suction unit 40 is connected with the injection tube through the injection interface, and the laser cauterization unit 50 is provided with a laser optical fiber 51 which penetrates into the injection tube from the injection interface.

The front end of the visual probe is provided with an exploring lens 15 and a light-transmitting lens 16, an image guide beam 12 connected with the exploring lens and a light guide beam 13 connected with the light-transmitting lens are arranged in the visual probe, and the injection tube 14 is provided with an outlet 17 at the front end of the visual probe.

The outer diameter d1 of the visual probe is 2mm +/-0.005 mm, the length of the visual probe is 200 mm-500 mm, and the outer tube of the probe is made of mild steel; the outer diameter d6 of the injection tube is 0.9 mm +/-0.005 mm, and the wall thickness S6 of the injection tube is 0.1mm +/-0.005 mm.

The front end of the visual probe is provided with a head outer sleeve 18, the front end of the head outer sleeve is provided with a splashing tongue 19 which is bent towards the center direction of the probe outer tube, and the position of the splashing tongue corresponds to the outlet 17 of the injection tube.

The tail of the visual probe is provided with a probe connector 60 which is connected with the illumination light source and the display device, and the injection port 70 is arranged on the probe connector and communicated with the injection tube 14.

The injection interface is provided with an optical fiber interface 71, a first pipe joint 72 and a second pipe joint 73, the center of the injection interface is provided with an interface through hole 74, the axis of the interface through hole corresponds to the injection pipe port 14e of the probe joint, the optical fiber interface is arranged at the end of the injection interface, and the axis of the optical fiber interface is coaxial with the interface through hole; the first pipe joint and the second pipe joint are arranged on the side wall of the injection interface, and the optical fiber interface, the first pipe joint and the second pipe joint are communicated with the interface through hole.

The optical fiber connector is sleeved with a silica gel cap 78, the first pipe joint and the second pipe joint are sleeved with a hose 76, and the hose is provided with a pipe clamp 77.

The injection interface is installed on the probe connector through threads, and a sealing ring 75 is arranged between the injection interface and the probe connector.

The liquid injection and suction unit includes a transfusion bottle 41, a suction pump 42, and a syringe 43.

The laser cauterization unit comprises a holmium laser.

The first embodiment is as follows:

referring to fig. 2 to 6, a fistula endoscope is provided with a vision probe 10, a connector 60, an illumination source 20 and a display device 30.

As shown in fig. 4 to 6, the visual probe 10 includes a probe outer tube 11, an inspection lens 15, an image guide bundle 12, a transparent lens 16, a light guide bundle 13 and an injection tube 14.

The outer diameter d1=2mm +/-0.005 mm of the probe outer tube 11, the wall thickness S1=0.1 mm +/-0.005 mm of the probe outer tube, the length of the probe outer tube can be selected to be 200 mm-500 mm according to needs, in order to enable the probe outer tube to have proper bending characteristics, the material of the probe outer tube is soft steel, such as low carbon steel or 304 stainless steel, and the soft steel is manufactured through high-temperature annealing, the mechanical performance of the soft steel is close to that of a silver wire with the diameter of 2mm, the soft steel can be bent to a certain radian and straightened, and the soft steel has good toughness and is not easy to break.

The transparent lens 16 is arranged at the front end of the probe outer tube 11 and matched with the inner diameter of the probe outer tube, the diameter d4=1.8 mm +/-0.005 mm of the transparent lens, the thickness S4=3.0mm of the transparent lens, the transparent lens 16 is a cylindrical plane protective lens with high light transmittance and is made of quartz glass, and the front edge of the transparent lens is flush with the front edge of the probe outer tube.

The exploration lens 20 is a macro wide-angle lens, the diameter d2=0.55 mm +/-0.005 mm, the thickness S2=2.0mm, the exploration lens is a quartz glass convex lens, the focal length is less than or equal to 5mm, the visual angle width is more than or equal to 160 degrees, the exploration lens is an objective lens of an image guide beam, namely a visual probe, and has the function of clearly magnifying near objects. The front end of the image guide bundle is tightly attached to the back of the convex lens, the center of the section of the image guide bundle is concentric with the exploration lens, the exploration lens 15 is arranged in the light-transmitting lens 16, and the convex surface of the front end of the exploration lens extends out of the end surface of the light-transmitting lens.

The injection tube 14 is arranged in the probe outer tube, the outer diameter d6=0.9 mm +/-0.005 mm of the injection tube, the wall thickness S6=0.1 mm +/-0.005 mm of the injection tube, and the injection tube can adopt a soft steel tube or a plastic soft tube. The front end of the injection tube is mounted in a transparent lens 16, which is flush with the front end of the lens, the lens being provided with an outlet 17 of the injection tube.

The image guide beam 12 penetrates into the outer probe tube 11 and is connected with the probing lens 15, and the tail part of the image guide beam penetrates out of the tail part of the outer probe tube 11. The diameter of the outer contour of the image guide bundle 12 is not more than 0.55mm, the image guide bundle comprises 8000 single optical fibers with the diameter of 7 um-8 um, and the image guide bundle can transmit higher-resolution exploration images.

The probing lens and the injection tube are symmetrically arranged on two sides of the center of the light-transmitting lens.

The light guide beam 13 penetrates into the probe outer tube and is connected with the light-transmitting lens 16, and the tail part of the light guide beam penetrates out of the tail part of the probe outer tube 11. The light guide bundle comprises 3000 single optical fibers with the diameter of 12 um. The light guide bundle passes through the outer probe tube 11 in the space left by the injection tube 14 and the image guide bundle 12, as shown in fig. 6.

The front end of the probe outer tube is provided with a head outer tube 18, the head outer tube 18 is sleeved on the probe outer tube 11, the front end of the head outer tube is aligned with the front end of the probe outer tube, the front end of the head outer tube and the front end of the probe outer tube are polished to be round, the wall thickness of the head outer tube is 0.1mm, and the head outer tube is a titanium alloy tube. The front end of the head outer sleeve is provided with a splash tongue 19 which is bent towards the center direction of the probe outer tube, and the position of the splash tongue corresponds to the outlet 17 of the injection tube.

The head part of the probe outer tube 11, the probe lens 15, the head part of the image guide beam 12, the light-transmitting lens 16, the head part of the light guide beam 13 and the head part of the injection tube 14 are installed in a precise tight fit mode, the micro-gap epoxy resin glue is fixed in a waterproof sealing mode, and the head outer sleeve 18 and the probe outer tube are fixed in a welding mode or an adhesion mode. The purpose of this is to keep the entire head waterproof, and the instrument can be soaked in water to facilitate liquid or gas disinfection and clinical operation.

As shown in fig. 2 and 3, the tail of the visual probe 10 is connected with the probe connector 60, and the image guide bundle 12, the light guide bundle 13 and the injection tube 14 are led into the probe connector from the end of the visual probe.

The front end of the probe joint 60 is fixedly connected with the probe outer tube 11. The probe joint is provided with an image guide beam interface 63 for leading out the image guide beam 12; the probe connector is provided with a light guide beam interface 62 for leading out the light guide beam 13. The probe connector is provided with a syringe interface 70 in communication with the syringe 14.

In this embodiment, the image guide bundle interface 63 is coaxial with the visual probe 10, the light guide bundle interface 62 and the syringe interface 70 are respectively disposed at two sides of the axis of the visual probe 10, and the axes of the light guide bundle interface 62 and the syringe interface 70 are inclined toward one side of the image guide bundle connection hole, so that the light guide bundle and the syringe are more convenient to guide out and the operation of the probe is more convenient.

The image guide bundle interface 63 is provided with a miniature camera head assembly, and the miniature camera head assembly comprises a camera lens 64, a CCD photosensitive element 65 and a video data cable 66.

In order to realize the miniaturization and convenient operation of the visual probe joint, the minimum shooting distance of the miniature camera head component is less than or equal to 5mm, the camera head lens is a cylindrical lens with the outer diameter less than or equal to 15mm, and the resolution of the CCD photosensitive element is more than or equal to 1280 x 1024.

A video data cable 33 leads from the end of the image-guide bundle interface. The image interface is connected to a display device 30, which includes a display and other video devices and data processing devices.

The light guide beam interface 62 is internally provided with a light guide lens 67 which is a quartz glass lens, the tail end of the light guide beam 13 penetrates into the light guide beam interface 62 and is connected with the light guide lens, and the light guide lens is connected with the illumination light source 20. The illumination source comprises an LED lamp 21 arranged in the light beam interface 62, and the illumination source 20 can be powered by a power line or a built-in battery.

Syringe interface 70 communicates with syringe 14. Liquid can be injected into the syringe or withdrawn through the syringe interface 70. The cables of the laser optical fiber and other medical equipment can also be threaded through the interface of the syringe.

The visual probe 10 of the embodiment reasonably utilizes the inner space of the probe outer tube, and the image guide bundle, the light guide bundle and the injection tube pass through the inner hole of the probe outer tube with the diameter of only 1.8 mm. The head outer sleeve 18 may enhance the structural strength of the head of the outer probe tube 11. The effect of the splash tongue 19 includes: when water is sprayed through the injection tube 14, water flow is sprayed to the spraying tongue, so that the water flow is sprayed to the periphery, and the probe lens can be washed by the water flow, so that objects viewed by the probe lens are clear. The water flow or the liquid medicine sprayed forwards and around has good washing and treating effects on the fistula wall and the inner opening. When the laser optical fiber for treatment and the like pass out of the injection tube, the spray tongue can be bent sideward, which is beneficial to treating the fistula wall. The splash tongue can be used for tying a line at the head of the probe to carry out the line hanging operation treatment on the anal fistula.

The fistula endoscope of the embodiment can be used for diagnosing and treating by extending into the fistula to observe the anatomical structure and morphological characteristics of the fistula wall and the internal orifice, the head outer sleeve of the part inserted into a human body is preferably 2.2mm in outer diameter, the outer sleeve of the probe of the insertion part is preferably 2.0mm in outer diameter, the fistula endoscope can be inserted into a fistula pipeline of which the diameter of the human body fistula is more than or equal to 1.5mm after anesthesia, the medical probe is of a soft structure, has smooth appearance, can be bent and deformed along with the fistula and reaches the internal orifice, and is suitable for diagnosis and treatment of most anal fistulas. The visible probe is a real-time color optical imaging, has a positive viewing angle of 0 degree, has a viewing angle width of more than or equal to 160 degrees, is close to the viewing angle and the viewing angle width of normal human eyes, has a parameter which is more superior than the viewing angle width of an oblique viewing angle of 8 degrees and the viewing angle width of 70-90 degrees, is equivalent to bringing the eyes of a doctor into the fistula for observation, and can obtain real-time optical images and photos of the anatomical structure with clear fistula walls and inner orifices.

Example two:

referring to fig. 1 to 6, a minimally invasive fistula surgical device comprises a fistula scope, a liquid injection and suction unit and a laser cauterization unit.

The fistula endoscope is provided with a probe joint 60 at the tail part of a visual probe, an injection interface 70 is arranged on the probe joint, the injection interface is arranged on the probe joint 60 through threads, and a sealing ring 75 is arranged between the injection interface 70 and the probe joint 60.

The injection port communicates with the syringe 14. The center of the injection port is provided with a port through hole 74, the axis of the port through hole 74 corresponds to the syringe port 14e of the probe connector, and the diameter of the port through hole is the same as the inner diameter of the syringe 14, so as to facilitate the penetration of optical fibers and other cables.

The injection interface is provided with an optical fiber interface 71, a first pipe joint 72 and a second pipe joint 73, the optical fiber interface, the first pipe joint and the second pipe joint are all communicated with an interface through hole 74, the optical fiber interface 71 is arranged at the end of the injection interface, and the axis of the optical fiber interface is coaxial with the interface through hole, namely the optical fiber interface is directly opposite to the injection pipe port 14e, so that optical fibers can enter the injection pipe 14 more easily. A first adapter and a second adapter are disposed on a sidewall of the injection port. Since liquid injection and liquid suction through an injection tube are required in minimally invasive fistula surgery and the same equipment cannot be used for liquid injection and liquid suction, in order to avoid frequent replacement of the injection and suction equipment, a first pipe joint and a second pipe joint are provided, which connect the injection equipment and the suction equipment, respectively. The first pipe joint and the second pipe joint are sleeved with hoses 76, the first pipe joint and the second pipe joint are respectively connected with injection equipment and suction equipment through the hoses 76, the hoses 76 can adopt common infusion hoses, and pipe clamps 77 are arranged on the hoses 76 connecting the first pipe joint and the second pipe joint, and the pipe clamps 77 are used as switches of pipelines. The silica gel cap 78 is sleeved on the optical fiber interface, the silica gel cap 78 can seal the optical fiber interface 71, when an optical fiber needs to be penetrated from the optical fiber interface, a non-open pore 79 is punctured on the silica gel cap 78 by an injection needle, the optical fiber is inserted from the pore 79, and due to the elastic effect of silica gel, the silica gel cap 78 can play a sealing role no matter in the state of inserting the optical fiber or not inserting the optical fiber.

The liquid injection and suction unit includes a dropper bottle 41 that can inject liquid into the syringe, a suction pump 42 that can draw liquid from the syringe, and a syringe 43 having a function of injecting and drawing liquid through the syringe. The liquid injection suction unit 40 is connected to the injection tube 14 through the injection tube interface 70 of the fistula scope.

The laser cauterizing unit 50 includes a holmium laser. The laser cauterization unit 50 is provided with a laser fiber 51, the laser fiber 51 extending through the injection tube interface 70 of the fistula mirror, through the exit port 17 of the injection tube 14 and out the front end of the visualization probe 10.

The fistula minimally invasive surgery device can also be connected with more fistula treatment equipment such as thin biopsy forceps, thin needle suction instruments, high-frequency knives and the like through injection tubes.

The utility model provides an advanced technical means for anal fistula operation.

The surgical process comprises the following steps: patient's clean intestinal before the art, the anesthesia, open fistula mirror system display device and light source, injection interface connection is equipped with the liquid injection suction unit (like transfusion bottle transfusion system or syringe) of normal saline, place the fistula mirror on the operating table, insert in the fistula with the visual probe head end from anal fistula external orifice, the condition in the fistula is observed on one side from the display screen to the mirror of advancing during the operation, it gets into to look for the chamber like boring the tunnel, because visual probe is hose and outward appearance smooth, fistula lens portion is the mellow and full head, be difficult to walk the false lane, avoid receiving the crooked influence of fistula, direct internal orifice. When the secretion in the fistula makes the exploration lens not clear, a transfusion bottle infusion apparatus or an injector is adopted to inject or suck the physiological saline through the injection tube of the fistula lens to flush and absorb, and 3 functions can be generated by flushing and cleaning the lens, flushing the fistula wall, and slightly expanding the fistula to be beneficial to the entering of a visual probe. When fistula adhesion occurs, the endoscope body is drawn to insert the visual probe with proper force by combining the flushing and suction, if severe adhesion resistance is large, the visual probe cannot be inserted with force, the endoscope can be withdrawn properly, the optical fiber of the laser cauterization unit is inserted from the injection tube, and the adhesion is cauterized and then is matched with flushing to remove the adhesion. When a fistula branch occurs, the branch can be entered by rotating and drawing the lens body. When the fistula internal orifice is healed by a false, the visual probe is stopped to be inserted, the front end of the visual probe is provided with a luminous transparent lens, a light spot penetrating through anorectal tissues can be seen through the observation in the anorectal cavity, and the light spot is the internal orifice. The internal port may be excised from the anorectal cavity. The optical fiber of the holmium laser is inserted from the injection tube, the wall of the fistula is thoroughly cauterized by combining with the rotation of the visual probe, the endoscope is retreated while cauterizing until retreating from the outer opening, the outer opening is cut off and the wound is dilated, the curette is inserted into the fistula to scrape the necrotic tissue to the fresh wound surface, so that the original fistula is in a tunnel shape with a slightly enlarged diameter. The absorbable suture then closes the tissue at the excision internal orifice. The fistuloscope (visual probe) is again advanced into the fistula to see if the internal orifice is completely closed, e.g., closed with a leak enhancing suture. The tunnel wound surface at the original fistula has bleeding, and if the tunnel wound surface has bleeding, a laser is inserted to cauterize and stop bleeding. If the necrotic tissue is not completely removed, the necrotic tissue is removed again by cauterization. After observation, the tunnel at the original fistula is washed and the endoscope is removed by connecting the injection tube with physiological saline (or antibiotic solution, hemostatic solution and the like). And (5) bringing antibacterial hemostatic medicinal lines or drainage medicinal strips into the tunnel at the original fistula, wrapping the wound and finishing the operation.

The anal fistula minimally invasive surgery mainly protects the anal sphincter, has small wound, quick recovery and little pain, and ensures that the healed anus has no deformity.

Adopt the utility model discloses a fistula minimal access surgery device, can innovate one kind and keep the anal fistula minimal access therapy operation mode of sphincter, promptly "the fistula mirror remains sphincter tunnel type anal fistula excision radical operation" this art formula is the peculiar minimal access surgery formula of utilizing the fistula mirror original creation of this research and development, this kind of minimal access surgery formula is treated from fistula inside, more current traditional operation mode treats more wicresoft and accurate from the fistula outside, the important anal sphincter that has protected, the wound is little, resume fast, it is painful little, the healing back anus does not have the deformity.

Furthermore, the advanced holmium laser technology is innovatively applied to the field of fistula treatment, so that the surgical treatment is more minimally invasive and efficient. The holmium laser is novel laser generated by a pulse solid laser device which is made of a laser crystal (Cr: Tm: Ho: YAG) doped with sensitized ion chromium (Cr), energy transfer ion thulium (Tm) and active ion holmium (Ho) and takes Yttrium Aluminum Garnet (YAG) as an active medium. Is applied to department operations of urology surgery, hepatobiliary surgery, spinal minimally invasive surgery, ENT (ear, nose and throat) department, dermatology department, gynecology department and the like. The laser operation is a minimally invasive operation, and the pain of the patient in treatment is very small. The main characteristics are as follows: the laser has excellent cutting ability and tissue excision ability, has good hemostatic effect in the tissue cutting process, can also perform hemostasis even on blood vessels with the diameter of 1mm, can be operated and treated in water, and has excellent effect in treatment of prostatauxe enucleation, urethral stricture, urinary tract tumor excision, urethral calculus, biliary tract calculus and biliary tract tumor. Holmium lasers also have the characteristic that light waves can be transmitted through silica quartz optical fibers, and the optical fibers are flexible, so that the holmium lasers are very suitable for treatment under an endoscope or a micro-needle mirror. By combining an endoscope technology or a micro-needle mirror technology, holmium laser can be conducted through quartz fibers with the diameters of 200-1000 microns, fine operation is facilitated, the operation generally needs 5-30 minutes and can be completed in a one-point mode, and operation time can be greatly shortened (1). (2) Has small damage to surrounding normal tissues, light postoperative reaction, fast wound healing and small scars. (3) The hemostatic effect is good, the hemostatic time is one fourteen times of that of an electric knife, and the hemostatic effect is 2-4 times of that of the electric knife. Therefore, the operation with little bleeding or even no blood can be expected. The operation field has no blood leakage and is clear and identifiable, and the operation time can be greatly shortened. (4) The treatment is carried out by gasification in the operation, the edge of the trimmed tissue is smooth and has gradient, no step is left as in the mechanical cleaning, no soft tissue scar is formed, and (5) the laser operation has no interference to various monitoring instruments in the operation. The extensive application of holmium laser in the fields of biliary surgery, urology surgery and spinal minimally invasive surgery makes the minimally invasive science further developed. However, no holmium laser is applied in the field of anorectal department so far, and by the fistula minimally invasive surgery device, the advanced holmium laser technology is applied in fistula disease diagnosis and treatment in the field of anorectal department, so that the application range of holmium laser is expanded, and a precedent of a fistula mirror combined holmium laser minimally invasive fistula surgery from an internal treatment method is expanded.

In addition, it should be noted that, in addition to the internal operation treatment of fistula diseases, the fistula minimally invasive surgical device can also be used for performing fistula operations of traditional methods based on the alignment of the fistula by the fistula endoscope, for example, the traditional Chinese medicine suture hanging operation for the fistula with high complex anal fistula and the like, so that the cure rate is improved, and the fistula minimally invasive surgical device is an example combining the traditional Chinese medicine and the minimally invasive surgery.

Furthermore, through the observation of this fistula mirror to the fistula, show out the internal anatomical structure of fistula in real time, be that people know in more detail and master the relevant knowledge of fistula internal structure, further improve theoretical level and scientific research level, be favorable to imparting knowledge and teaching.

Claims

1. A fistula minimally invasive surgery device is characterized by comprising a fistula mirror, a liquid injection suction unit and a laser cauterization unit, wherein the fistula mirror is provided with a visual probe, an illuminating light source and a display device, an injection tube is arranged in the visual probe, the fistula mirror is provided with an injection interface, the liquid injection suction unit is connected with the injection tube through the injection interface, the laser cauterization unit is provided with a laser fiber, and the laser fiber penetrates into the injection tube from the injection interface.

2. A minimally invasive fistula surgical device as set forth in claim 1, wherein the visual probe is provided at a front end thereof with an exploratory lens and a light-transmitting lens, the visual probe is provided with an image-guiding bundle connected to the exploratory lens and an image-guiding bundle connected to the light-transmitting lens, and the injection tube is provided with an outlet at the front end of the visual probe.

3. A minimally invasive fistula surgical device according to claim 2, wherein the outer diameter of the visual probe is 2mm ± 0.005mm, the length of the visual probe is 200mm to 500mm, and the outer tube of the probe is made of mild steel; the outer diameter of the injection tube is 0.9 mm +/-0.005 mm, and the wall thickness of the injection tube is 0.1mm +/-0.005 mm.

4. A minimally invasive fistula surgical device according to claim 2, wherein the front end of the visual probe is provided with a head outer sleeve, the front end of the head outer sleeve is provided with a splash tongue bent towards the center of the probe outer tube, and the position of the splash tongue corresponds to the outlet of the injection tube.

5. A minimally invasive fistula surgical device as set forth in claim 1, wherein the tail of the visualization probe is provided with a probe connector, the probe connector is connected with the illumination light source and a display device, the injection port is mounted on the probe connector, and the injection port is communicated with the injection tube.

6. A minimally invasive fistula surgical device according to claim 5, wherein the injection port is provided with a fiber interface, a first pipe connector and a second pipe connector, the injection port is provided with a port through hole in the center, the axis of the port through hole corresponds to the syringe port of the probe connector, the fiber interface is arranged at the end of the injection port, and the axis of the fiber interface is coaxial with the port through hole; the first pipe joint and the second pipe joint are arranged on the side wall of the injection interface, and the optical fiber interface, the first pipe joint and the second pipe joint are communicated with the interface through hole.

7. A minimally invasive fistula surgical device according to claim 6, wherein a silicone cap is sleeved on the optical fiber interface, and hoses are sleeved on the first pipe joint and the second pipe joint and provided with pipe clamps.

8. A minimally invasive fistula surgical device as set forth in claim 5, wherein the injection port is threadably mounted on the probe hub with a seal disposed therebetween.

9. A minimally invasive fistula surgical device according to claim 1, wherein the liquid infusion suction unit comprises a dropper set, a suction pump and a syringe.

10. A minimally invasive fistula surgical device according to claim 1, wherein the laser cauterization unit comprises a holmium laser.