CN114532963A - Visual medical probe - Google Patents

Abstract

The invention relates to a visual medical probe which comprises a probe outer tube, an injection tube, an exploration lens, an image guide beam, a light-transmitting lens and a light guide beam, wherein the light-transmitting lens is arranged at the front end of the probe outer tube, the exploration lens is arranged on the light-transmitting lens, the light guide beam penetrates through the probe outer tube to be connected with the light-transmitting lens, and the image guide beam penetrates through the probe outer tube to be connected with the exploration lens. An injection tube is arranged in the probe outer tube, the front end of the injection tube is inserted into the light-transmitting lens, and the front end of the injection tube is flush with the front end face of the light-transmitting lens. The invention has the beneficial effects that: the invention adopts a probe outer tube which has small outer diameter and can be bent moderately, the front end of the probe outer tube is provided with an exploring lens, the probe outer tube is particularly suitable for exploring a fistula, an injection tube is adopted, medicine can be flushed in the fistula, the exploring lens is cleaned, the splashing tongue at the front end of the probe can obviously improve the effects of flushing the fistula and cleaning the lens, the fistula and the inner opening tissue can be subjected to in vivo tissue pathological examination through the injection tube, and the anal fistula can be treated by minimally invasive surgery accurately by matching with a medical laser or a high-frequency electric knife.

Description

Visual medical probe

Technical Field

The present invention relates to medical probes, and more particularly to a visual medical probe.

Background

Anal fistula is called anal rectal fistula for short, and anal fistula is called anal fistula in traditional Chinese medicine. The abnormal channel formed between the anal canal or lower rectum and the skin around the anus or between the adjacent tissues and organs due to pathological reasons is a pathological duct. Typical anal fistulas generally comprise an external orifice, a fistula tract, an internal orifice, and some conditions are atypical and there is a varying degree of pseudohealing of the internal orifice, the external orifice, and the fistula, in "and or" occurrence. The fistula has irregular shape, or is straight or meandered, some fistulas have branches, or a plurality of fistulas exist simultaneously or are connected in series, and are clinically divided into high complex anal fistula, high simple anal fistula, low complex anal fistula and low simple anal fistula, and the cases that the fistulas exist simultaneously are often mixed with each other clinically.

Anal fistula is a common and frequently encountered disease in surgery and is mainly treated by operation. The surgical treatment principles for anal fistulas include positioning the fistula tract and internal orifice, eliminating the internal orifice and any communicating fistula tract, 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 mostly 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, so that diagnosis and treatment are carried out. 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 inside the fistula and can not see the internal orifice, the probe is used for blind detection in the anal fistula tissue, the risk of false detection exists, and the false passage situation also occurs, so that a doctor mistakenly thinks that the fistula and the internal orifice are detected, 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.

Because fistulas of fistula diseases such as anal fistula are thin and have diameters smaller than 3mm, instruments for extending into the fistulas to observe the internal fistula and the internal orifice anatomical structure are not produced at present. Research in this area is internationally in the beginning stage. Professor Meinero and Mori of Italy in 2011 firstly disclose VAFFT operation (Video-assisted anal fistula treatment) and Video-assisted anal fistula treatment suit developed and manufactured by Karl Storz of Germany, also called Karl Storz suit. The anal fistula endoscope is commonly called as the anal fistula endoscope in China. The anal fistula endoscope developed in Germany has an oblique visual angle of 8 degrees, the diameter is 3.3-4.7 mm, the operation length is 18 cm, the visual angle which can be observed at the same time is 70-90 degrees, the endoscope body is of a straight endoscope and a hard endoscope structure, the endoscope body cannot be bent along the bending trend of the fistula, the outer diameter of the endoscope body is thicker and reaches 4.7mm, and the anal fistula endoscope is suitable for anal fistula with thicker fistula and straighter fistula. However, in actual clinic, the anal fistula is few in domestic population, most of the anal fistula has irregular winding and circuitous curves, and some anal fistulas have branches, the inner diameter of the fistula is thin, most of the fistula is smaller than 3mm, most of the fistula is about 2mm, and the anal fistula can not be inserted, so that the use of the anal fistula is limited, and the anal fistula is not popularized.

Chinese patent CN201910680869.8 discloses a video auxiliary endoscope kit for anal fistula treatment, which has a complex structure and can perform functions such as operation on partial anal fistula, but the core of the invention is the improvement of the auxiliary kit on the basis of the existing hard endoscope, rather than the invention of the endoscope itself. The external diameter of the endoscope kit is thicker, the diameter reaches 4mm, the endoscope kit is of a hard tube structure, the endoscope used is also of a hard scope, and the endoscope kit is thinner for most anal fistula, is applicable to the anal fistula with sinuous fistula running, is difficult to apply (cannot be operated because of no insertion), and is more applicable to the anal fistula with thicker and straight fistula.

There are also patent documents relating to anal fistula probes, for example patent document CN108992102A discloses a medical anal fistula probe, patent document CN208709893U discloses an improved anal fistula probe, and patent document CN108201436A discloses a disposable multifunctional soft anal fistula probe. Other patents relate to surgical instruments for anal fistula seton, for example, document CN109223105A discloses a medical multifunctional seton device, document CN108888304A discloses an anal fistula seton device, and document CN108852430A discloses a tightener for anal fistula seton surgery.

At present, no document exists about a visual probe or a fistuloscope which is suitable for anal fistula and a soft fistula or visual probe with a thin body diameter (2mm outer diameter).

Disclosure of Invention

The invention aims to provide a visual medical probe which is suitable for medical visual exploration and treatment of anal fistula.

In order to achieve the purpose, the technical scheme of the invention is as follows: a visible medical probe comprises an outer probe tube, an injection tube, an exploring lens, an image guide beam, a transparent lens and a light guide beam, wherein the transparent lens is arranged at the front end of the outer probe tube, the exploring lens is arranged on the transparent lens, the transparent lens is exposed at the front end of the exploring lens, the light guide beam penetrates into the outer probe tube to be connected with the transparent lens, and the image guide beam penetrates into the outer probe tube to be connected with the exploring lens.

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

Furthermore, a printing opacity lens structure of preferred is, the diameter of printing opacity lens is 1.8mm 0.005mm, the thickness of printing opacity lens is 3.0mm, the preceding of printing opacity lens with probe outer tube front end parallel and level, leaded light bundle includes the single optic fibre of 3000 root diameter 12 um.

Further, a preferred explores camera lens structure is, it is microspur wide angle camera lens to explore the camera lens, the diameter of exploring the camera lens is 0.55 mm 0.005mm, the thickness of exploring the camera lens is 2.0mm, the external diameter cover of exploring the camera lens has the camera lens sheath, the camera lens sheath is the stainless steel sleeve pipe that the wall thickness is 0.1mm, explore the front end edge of camera lens with printing opacity lens front end face parallel and level, lead the image bundle and include 8000 root diameter and be 7um ~ 8 um's single optic fibre.

Furthermore, in order to make liquid and surgical equipment pass through the probe, an injection tube is arranged in the outer tube of the probe, the front end of the injection tube is inserted into the light-transmitting lens, and the front end of the injection tube is flush with the front end surface of the light-transmitting lens.

Still further, a preferred injection tube structure is that the outer diameter of the injection tube is 0.9 mm ± 0.005mm, the wall thickness of the injection tube is 0.1mm ± 0.005mm, and the injection tube is a soft steel tube or a plastic hose.

Further, in order to fully and rationally utilize the space in the probe outer tube, the printing opacity lens is equipped with camera lens mounting hole and syringe mounting hole, camera lens mounting hole and syringe mounting hole set up the both sides at the printing opacity lens center, it installs to explore the camera lens in the camera lens mounting hole, the front end of syringe is installed in the syringe mounting hole, the leaded light beam is in penetrate in the space that syringe and leaded light beam remain the probe outer tube, the printing opacity lens rear end face is hugged closely to the front end of leaded light beam.

Furthermore, in order to strengthen the structural strength of the head of the outer probe tube and improve the washing effect and the cleaning exploration joint, the front end of the outer probe tube is provided with a head outer sleeve, the front end of the head outer sleeve is flush with the front end of the outer probe tube, the front end of the head outer sleeve is polished with the front end of the outer probe tube, the head outer sleeve is a titanium alloy tube with the length of 4.0mm and the wall thickness of 0.1mm, the front end of the head outer sleeve is provided with a splashing tongue bent towards the center direction of the outer probe tube, and the position of the splashing tongue corresponds to the outlet of the injection tube.

Furthermore, a preferred structure of the splash tongue is that the width of the splash tongue is 0.7mm, and the splash tongue extends out of the front end of the head outer sleeve by 0.8 mm.

Furthermore, for being connected with external equipment, the afterbody of leading image bundle, leaded light bundle and syringe stretches out the end of probe outer tube, the end of probe outer tube is equipped with the probe connector, the probe connector is equipped with image interface, light source interface and injection interface, lead the image bundle and connect the image interface, leaded light bundle connects the light source interface, the syringe is connected the injection interface.

The invention has the beneficial effects that: the invention adopts a probe outer tube which has small outer diameter and can be bent moderately, the front end of the probe outer tube is provided with an exploring lens, the probe outer tube is particularly suitable for exploring a fistula, an injection tube is adopted, medicine can be flushed in the fistula, the exploring lens is cleaned, the splashing tongue at the front end of the probe can obviously improve the effects of flushing the fistula and cleaning the lens, the fistula and the inner opening tissue can be subjected to in vivo tissue pathological examination through the injection tube, and the anal fistula can be treated by minimally invasive surgery accurately by matching with a medical laser or a high-frequency electric knife.

The invention is described in detail below with reference to the figures and examples.

Drawings

FIG. 1 is a structural diagram of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is an exploded view of the probe head structure of the present invention;

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

FIG. 5 is a schematic view of the head of the probe of the present invention, shown in cross-section A-A of FIG. 4, with the light beam hidden;

FIG. 6 is a cross-sectional view B-B of FIG. 5;

FIG. 7 is a view of the structure of the probe connector of the present invention;

FIG. 8 is a schematic diagram of the probe connector of the present invention connected to a device.

Because the optical fibers of the image guide bundle and the light guide bundle are too thin, the image guide bundle and the light guide bundle in the figure are exaggerated.

Detailed Description

Referring to fig. 1 to 6, a visible medical probe includes an outer probe tube 10, an exploring lens 20, an image guide bundle 30, a transparent lens 40 and a light guide bundle 50, wherein the exploring lens is disposed on the transparent lens, a front end of the exploring lens exposes the transparent lens, the transparent lens is disposed at a front end of the outer probe tube, the exploring lens is disposed on the transparent lens, a front end of the exploring lens exposes the transparent lens, the light guide bundle penetrates into the outer probe tube to connect with the transparent lens, and the image guide bundle penetrates into the outer probe tube to connect with the exploring lens.

The outer diameter d1 of the probe outer tube is 2mm +/-0.005 mm, the wall thickness S1 of the probe outer tube is 0.1mm +/-0.005 mm, the length L of the probe outer tube is 200 mm-500 mm, and the probe outer tube is made of mild steel.

The diameter d4 of printing opacity lens is 1.8mm 0.005mm, the thickness S4 of printing opacity lens is 3.0mm, the preceding of printing opacity lens with probe outer tube front end parallel and level, the leaded light bundle includes the single optic fibre of 3000 root diameter 12 um.

The probe lens is a microspur wide-angle lens, the diameter d2 of probe lens is 0.55 mm +/-0.005 mm, the thickness S2 of probe lens is 2.0mm, the external diameter cover of probe lens has lens sheath 21, the lens sheath is the stainless steel sleeve that the wall thickness is 0.1mm, the front end edge of probe lens with the terminal surface parallel and level before the printing opacity lens, lead the image bundle and include 8000 root diameter and be 7um ~ 8um single optic fibre.

An injection tube 60 is arranged in the outer tube of the probe, the front end of the injection tube is inserted into the light-transmitting lens, and the front end of the injection tube is flush with the front end face of the light-transmitting lens.

The outer diameter d6 of injection pipe is 0.9 mm +/-0.005 mm, the wall thickness S6 of injection pipe is 0.1mm +/-0.005 mm, the injection pipe is soft steel pipe or plastic hose.

The light-transmitting lens 40 is provided with a lens mounting hole 41 and an injection tube mounting hole 42, the lens mounting hole and the injection tube mounting hole are arranged on two sides of the center of the light-transmitting lens, the exploring lens is mounted in the lens mounting hole, the front end of the injection tube is mounted in the injection tube mounting hole, the light guide beam penetrates into the probe outer tube in the space left by the injection tube and the light guide beam, and the front end of the light guide beam is tightly attached to the rear end face of the light-transmitting lens 40.

The front end of probe outer tube is equipped with head outer tube 70, the front end of head outer tube with the front end parallel and level of probe outer tube, the front end of head outer tube with the front end of probe outer tube is polished roundly, the head outer tube is that length L7 is 4.0mm, wall thickness S7 is 0.1 mm' S titanium alloy pipe, the front end of head outer tube be equipped with to the splash tongue 71 of probe outer tube center direction buckle, the position of splash tongue corresponds to the export of injection tube.

The width W7 of the splash tongue is 0.7mm, and the splash tongue protrudes out of the front end E7=0.8mm of the head outer sleeve.

As shown in fig. 7, the tail portions of the image guide bundle, the light guide bundle and the injection tube extend out of the tail end of the probe outer tube, the tail end of the probe outer tube is provided with a probe connector 80, the probe connector is provided with an image interface 81, a light source interface 82 and an injection interface 83, the image guide bundle is connected with the image interface, the light guide bundle is connected with the light source interface, and the injection tube is connected with the injection interface.

The first embodiment is as follows:

referring to fig. 1 to 6, a visual medical probe comprises an outer probe tube 10, an inspection lens 20, an image guide beam 30, a transparent lens 40, a light guide beam 50 and an injection tube 60.

The outer diameter d1=2mm ± 0.005mm of the probe outer tube 10, the wall thickness S1=0.1 mm ± 0.005mm of the probe outer tube, and the length L of the probe outer tube may be 200mm to 500mm as needed, and different specifications of 200mm, 250mm, 300mm, 400mm, and 500mm may be preferable in actual manufacturing. The outer wall of the outer tube of the probe is provided with scale marks 11 with the unit of 1 mm. In this embodiment, the length L =300mm of the outer tube of the probe is made of soft steel, such as mild steel or 304 stainless steel, through high-temperature annealing, so that the outer tube of the probe has a moderate bending characteristic, and has mechanical properties close to those of a silver wire with a diameter of 2mm, and the outer tube of the probe can be bent to a certain radian, straightened, and has good toughness and is not easy to break.

The light-transmitting lens 40 is arranged at the front end of the probe outer tube 10, the diameter d4=1.8 mm +/-0.005 mm of the light-transmitting lens, the thickness S4=3.0mm of the light-transmitting lens, the light-transmitting lens 40 is a cylindrical plane protection lens with high light transmittance and is made of quartz glass, the light-transmitting lens is axially arranged in an inner hole of the probe outer tube, and the front edge of the light-transmitting lens is flush with the front edge of the probe outer tube. The lens 40 is provided with a lens mounting hole 41 and an injection tube mounting hole 42, the lens mounting hole 41 and the injection tube mounting hole 42 are axial through holes, the lens mounting hole and the injection tube mounting hole are symmetrically arranged on two sides of the center of the lens, the diameter of the injection tube mounting hole is 0.9 +/-0.005 mm, and the diameter of the lens mounting hole is 0.75 +/-0.005 mm.

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 front end of the exploration lens is a convex surface with a certain curvature, the back of the lens is a plane, namely a convex lens which is convex in front and flat in back, the focal length reaches the macro, the focal length is less than or equal to 5mm, the visual angle width is more than or equal to 160 degrees, the lens is an objective lens of an image guide beam, namely the objective lens of a visual medical probe, and the lens has the function of clearly amplifying near objects. The outer diameter of the probing lens is sleeved with a lens sheath 21, the lens sheath is a stainless steel sleeve with the wall thickness of 0.1 +/-0.005 mm, and the outer diameter of the lens sheath is 0.75mm and corresponds to the diameter of a lens mounting hole 41 of the light-transmitting lens. The front end edge of the probing lens is flush with the front end surface of the light-transmitting lens. The front end of the image guide bundle is axially assembled in the lens sheath and is tightly attached to the back of the probing lens, the center of the section of the image guide bundle is concentric with the convex lens for optical path coupling correction, and peripheral gaps are fixedly packaged by epoxy resin in a bonding mode. The probe lens 20 is mounted in the lens mounting hole 41 through a lens sheath and passes through the transparent lens, and a convex surface of a front end of the probe lens is exposed out of an end surface of the transparent lens. The lens sheath 21 can protect the probe lens and can ensure that the probe lens is more reliably connected with the image guide beam, and the other important function of the lens sheath is to effectively prevent the occurrence of halo and ensure that the image is clear and stable.

The injection tube 60 is arranged in the probe outer tube, the outer diameter d6=0.9 mm +/-0.005 mm of the injection tube corresponds to the diameter of the injection tube mounting hole 42 of the light-transmitting lens, 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 syringe is mounted in the syringe mounting hole 42 and passes through the lens 40 with the forward end of the syringe flush with the forward end of the lens.

The image guide bundle 30 penetrates into the outer tube of the probe and is connected with the probing lens 20, and the tail part of the image guide bundle penetrates out of the tail part of the outer tube 10 of the probe. The diameter of the outer contour of the image guide bundle 30 is not more than 0.75mm, 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 light guide beam 50 penetrates into the outer tube of the probe and is connected with the light-transmitting lens 40, and the tail part of the light guide beam penetrates out from the tail part of the outer tube 10 of the probe. The light guide bundle comprises 3000 single optical fibers with the diameter of 12 um. The light guide bundle penetrates into the outer tube of the probe in the space left by the injection tube 60 and the image guide bundle 30, and the front end of the light guide bundle is tightly attached to the rear end face of the transparent lens 40, as shown in fig. 6.

The front end of the probe outer tube is provided with a head outer tube 70, the head outer tube 70 is sleeved on the probe outer tube 10, the front end of the head outer tube is flush 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 length L7 =4.0mm of the head outer tube, the wall thickness S7=0.1mm of the head outer tube, and the head outer tube is a titanium alloy tube. The front end of the head outer sleeve is provided with a splash tongue 71 which is bent towards the center direction of the probe outer tube, and the position of the splash tongue corresponds to the outlet of the injection tube 60. The width W7=0.7mm of the splash tab 71, which protrudes beyond the front end E7 of the head outer sleeve by about 0.8mm, the amount of bend at the tip of the splash tab not exceeding the center of the syringe 60. The manufacturing method of the splash tongue in the embodiment is that a titanium alloy circular tube with the length of 4.5mm, the inner diameter of 2 +/-0.005 mm and the wall thickness of 0.1 +/-0.005 mm is selected, one end is a front end, the other end is a rear end, a tube wall with the width of 0.7mm and the length of 0.8mm is cut and reserved at the front end, the edge of the reserved tube wall is polished to be round, the tube wall is bent and formed in an arc shape in the axis direction of the circular tube, the arc radius is 1.10mm, and the splash tongue 71 is formed. And (3) remaining a circular tube with the length of 4mm to form the head outer sleeve, and polishing the edge of the tube wall to be round and smooth, so that the integral structure of the splash tongue and the head outer sleeve is manufactured.

The head part of the probe outer tube 10, the probe lens 20, the head part of the image guide bundle 30, the light-transmitting lens 40, the head part of the light guide bundle 50 and the head part of the injection tube 60 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 70 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.

The visible medical probe reasonably utilizes the internal space of the outer tube of the probe, the image guide beam, the light guide beam and the injection tube need to be penetrated into the inner hole of the outer tube of the probe with the diameter of only 1.8mm, the invention innovatively discloses the installation method of the light guide beam, adopts the image guide beam and the injection tube to be respectively and symmetrically arranged at the two sides of the center of the light-transmitting lens, and the image guide beam 30 and the injection tube 60 are penetrated into the inner hole of the outer tube of the probe in parallel, the image guide bundle and the injection tube are two approximate circumscribed circles when viewed from the section, the image guide bundle and the injection tube and the inner hole of the outer tube of the probe are in an approximate inscribed circle state, the light guide beam only conducts visible light for illumination, does not conduct images, does not require the characteristic of corresponding orderly arrangement, is averagely divided into two beams, and is assembled around the inner hole image guide beam and the injection tube of the probe outer tube in an umbrella shape, so that more light guide beams are assembled as far as possible, and an ideal illumination effect is obtained.

The head outer sleeve 70 may enhance the structural strength of the head of the outer probe tube 10. Another important function of the head overtube 70 is the provision of the splash tabs 71. The effects of the splash tongue include: firstly, when the injection pipe 60 sprays water, the water flow is sprayed on the splash tongue to spray the water flow to the periphery, and the probe lens can be washed by the water flow to make the object seen by the probe lens clear. Secondly, the water flow or the liquid medicine sprayed forwards and around has good washing and treating effects on the wall and the inner opening of the fistula. And thirdly: 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. Fourthly, the method comprises the following steps: 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 basic principle of the invention is that the invention diagnoses and treats by observing the anatomical structure and morphological characteristics of the fistula wall and the internal orifice by extending into the fistula, the head outer sleeve inserted into the human body part preferably has an outer diameter of 2.2mm, the outer tube of the insertion part probe preferably has an outer diameter of 2.0mm, the fistuloscope can be inserted into the fistula tract of the human body with the diameter of more than or equal to 1.5mm after anesthesia, and the medical probe has a soft structure and smooth outer surface, can be bent and deformed along with the fistula and reaches the internal orifice, is more delicate and skillful than a video auxiliary endoscope suite, and is suitable for diagnosis and treatment of most anal fistulas. The visible medical probe is 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 a 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 form with clear fistula walls and inner orifices.

The visual medical probe of the present invention does not require any cannula and can be applied directly. Is suitable for diagnosing and treating anal fistula (including complicated anal fistula), and other fistula tract (sinus tract) diseases such as infection of sacrococcygeal sinus (also called sacrococcygeal hair sinus), hidradenitis suppurativa, infection of other parts of body, or fistula tract sinus tract with poor healing of operation incision and leading to body surface.

The technology of the invention can suck or scrape out the fistula and the internal orifice tissue to carry out the pathological examination of living tissues (for short: biopsy) so as to further know the cell properties of the fistula wall and the internal orifice tissue, and can accurately treat the anal fistula in a minimally invasive way by matching with a medical laser (such as holmium laser) or a high-frequency electrotome, thereby not damaging the anal sphincter, keeping the function of the anus, having small wound and quick recovery.

Example two:

a visual medical probe connector apparatus. Including the visual medical probe of embodiment one.

Referring to fig. 7 and 8, the image guide bundle 30, the light guide bundle 50 and the tail of the injection tube 60 of the medical visual probe extend out of the end of the outer probe tube 10, the end of the outer probe tube is provided with a probe connector 80, and the probe connector is provided with an image interface 81, a light source interface 82 and an injection interface 83.

The end of the probe connector 80 is connected to the end of the outer probe tube 10.

The image interface 81 faces the outer probe tube 10, and the image guide bundle 30 is connected with the image interface. A micro camera assembly is arranged in the image interface 81 and comprises a camera lens 81a, a CCD photosensitive element 81b and a video data cable 81 c. The camera lens 81a is aligned with the end of the image-directing bundle 30. The miniature camera component has a microspur shooting function, the minimum shooting distance is less than or equal to 5mm, the outer diameter of the cylindrical camera is less than or equal to 15mm, the resolution is greater than or equal to 1280 x 1024, and the lens component of the camera is provided with external threads and can rotate, move and focus. The video data cable 81c passes out of the tail of the image interface 81 and can be connected with video equipment and data processing equipment, such as a display and a computer, so that real-time observation of the fistula can be realized, and data can be recorded.

The light source interface 82 is disposed on one side of the probe connector 80. The light guide bundle 50 is connected to a light source interface 82, in which an illumination light source 82a is provided to provide a light source for the visible medical probe. The illumination source 82a is an LED lamp, and the illumination source 82a may be powered by a power cord or may be an integrated component powered by a built-in battery. The lighting source is installed or detached through internal and external thread connection or plug-in type connection. The illumination light source can also adopt a medical cold light source transmitted by optical fibers, and the illumination optical fiber output head is installed or detached by internal and external threaded connection or plug-in connection.

An injection port 83 is provided on the other side of the probe connector 80 relative to the light source port 82. The syringe 60 is connected to an injection port 83. The syringe interface 83 may be used to connect a variety of devices that use the syringe 60, such as syringes, aspiration pumps, fine biopsy forceps, fine needle aspiration devices, high frequency knives, medical laser devices.

By adopting the technical scheme of the invention, a sphincter-retaining anal fistula minimally invasive treatment operation mode is innovated, namely a sphincter-retaining tunnel-type anal fistula excision radical operation mode of a visual probe (fistuloscope), which is a unique minimally invasive operation mode originally created by utilizing the developed visual probe, is used for treating from the inside of the fistula, is more minimally invasive and accurate than the treatment from the outside of the fistula by the traditional operation mode, and mainly protects the sphincter ani, has small wound, quick recovery and small pain, and ensures that the anus has no deformity after healing.

The basic principle of the existing operation is that the fistula is cut or incised or threaded from the outside of the fistula along with the internal opening on the basis of the detection of the position of the fistula and the internal opening, which inevitably accompanies the incision or resection of the fistula to the muscle, subcutaneous fat and skin tissue on the skin side (threading is also a chronic cutting), and can also be understood as cutting or resection of a piece of meat or a piece of meat, the postoperative pain is heavy, pain killers are frequently applied, the wound healing time is long, generally one month to three months or more, linear or flaky scars are formed after healing, the scars are sometimes large, the anus or the buttocks are malformed, and the risk of anal incontinence is sometimes caused by excessive excision of the tissue. The minimally invasive surgery 'visible probe (fistuloscope) sphincter-preserving tunnel-type anal fistula excision radical treatment' using the visible probe is to perform fine minimally invasive treatment inside the fistula, well preserve (do not damage) the anal sphincter, greatly protect the anal function, further form a small incision, cause small pain of the wound, heal quickly, cause small scar after healing, possibly form a spot, and heal for about 7 days. In scientific research, according to trauma theory and clinical experience, the minimally invasive surgery measures and calculates several important indexes compared with the traditional surgery. The first index, measured according to the size of the wound, reduces the wound degree to 1/5-1/20; and secondly, the wound healing speed is increased, and the healing time is shortened to 1/4-1/12.

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, the operation time can be (1) greatly shortened, and (2) damage to surrounding normal tissues is small, the postoperative reaction is light, the wound healing is fast, and scars are small. (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 to fistula disease diagnosis and treatment in the field of anorectal department, so that the application range of the holmium laser is created, and a precedent of an internal treatment method of a visual probe (fistuloscope) combined with a holmium laser minimally invasive fistula operation is created.

In addition, it should be noted that, in addition to internal operation treatment of fistula diseases, the visual probe can be used for performing fistula operations of traditional methods on the basis of finding the fistula accurately, such as traditional Chinese medicine thread-hanging operations and other treatments on the fistula of high-position complex anal fistula, so that the cure rate is improved, and the visual probe is an example of combination of traditional Chinese medicine and minimally invasive operations.

Through the observation of this visual probe 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 (10)

1. A visual medical probe is characterized by comprising a probe outer tube, an injection tube, an exploration lens, an image guide beam, a light-transmitting lens and a light guide beam, wherein the light-transmitting lens is arranged at the front end of the probe outer tube, the exploration lens is arranged on the light-transmitting lens, the light-transmitting lens is exposed at the front end of the exploration lens, the light guide beam penetrates through the probe outer tube to be connected with the light-transmitting lens, and the image guide beam penetrates through the probe outer tube to be connected with the exploration lens.

2. The visual medical probe as claimed in claim 1, wherein the outer diameter of the outer tube of the probe is 2mm ± 0.005mm, the wall thickness of the outer tube of the probe is 0.1mm ± 0.005mm, the length of the outer tube of the probe is 200mm to 500mm, and the material of the outer tube of the probe is mild steel.

3. The visible medical probe of claim 1, wherein the diameter of the transparent lens is 1.8mm ± 0.005mm, the thickness of the transparent lens is 3.0mm, the front surface of the transparent lens is flush with the front end of the outer tube of the probe, and the light guiding bundle comprises 3000 single optical fibers with the diameter of 12 um.

4. The visible medical probe as claimed in claim 1, wherein the probing lens is a macro wide-angle lens, the diameter of the probing lens is 0.55 mm ± 0.005mm, the thickness of the probing lens is 2.0mm, the outer diameter of the probing lens is sleeved with a lens sheath, the lens sheath is a stainless steel sleeve with a wall thickness of 0.1mm, the front end edge of the probing lens is flush with the front end face of the transparent lens, and the image guide bundle comprises 8000 single optical fibers with a diameter of 7um to 8 um.

5. The visible medical probe as claimed in claim 1, wherein an injection tube is disposed in the outer tube of the probe, the front end of the injection tube is inserted into the transparent lens, and the front end of the injection tube is flush with the front surface of the transparent lens.

6. The visual medical probe as claimed in claim 5, wherein the outer diameter of the injection tube is 0.9 mm ± 0.005mm, the wall thickness of the injection tube is 0.1mm ± 0.005mm, and the injection tube is a soft steel tube or a plastic hose.

7. The visual medical probe as claimed in claim 5, wherein the transparent lens is provided with a lens mounting hole and an injection tube mounting hole, the lens mounting hole and the injection tube mounting hole are arranged at two sides of the center of the transparent lens, the probing lens is mounted in the lens mounting hole, the front end of the injection tube is mounted in the injection tube mounting hole, the light guide bundle penetrates into the probe outer tube in the space left by the injection tube and the light guide bundle, and the front end of the light guide bundle is tightly attached to the rear end face of the transparent lens.

8. The visible medical probe as claimed in claim 5, wherein the front end of the outer probe tube is provided with a head outer sleeve, the front end of the head outer sleeve is flush with the front end of the outer probe tube, the front end of the head outer sleeve is polished and rounded with the front end of the outer probe tube, the head outer sleeve is a titanium alloy tube with a length of 4.0mm and a wall thickness of 0.1mm, the front end of the head outer sleeve is provided with a splash tongue bent towards the center of the outer probe tube, and the position of the splash tongue corresponds to the outlet of the injection tube.

9. A visual medical probe according to claim 8 wherein the width of the splash tab is 0.7mm and the splash tab protrudes 0.8mm beyond the forward end of the head overtube.

10. The visual medical probe as claimed in claim 5, wherein the tail of the image guide bundle, the light guide bundle and the injection tube extends out of the end of the probe outer tube, the end of the probe outer tube is provided with a probe connector, the probe connector is provided with an image interface, a light source interface and an injection interface, the image guide bundle is connected with the image interface, the light guide bundle is connected with the light source interface, and the injection tube is connected with the injection interface.

Images