CN215502894U - Flexible endoscope for endoscopic instrument channel inspection - Google Patents

Abstract

The present invention relates to an endoscope structure. A flexible endoscope for endoscope instrument channel examination comprises an endoscope tube, wherein an image sensor is arranged at the tip part of the endoscope tube, and a light guide fiber is arranged outside the image sensor; the endoscope tube is a flexible tube, the tip of the endoscope tube is provided with a connecting structure, and the endoscope tube is detachably connected with accessories through the connecting structure. The flexible endoscope for the endoscope instrument channel inspection is simple in structure, can be used for inspecting instrument channels of hard and flexible endoscopes, effectively evaluates the cleaning condition and the abrasion degree of the instrument channels of the endoscope, and improves the accuracy of the endoscope; the endoscope device channel maintenance device solves the technical problem that an endoscope device channel in the prior art is prone to generating endoscopic blind areas and cannot be effectively maintained, and therefore the service life of an endoscope is shortened.

Description

Flexible endoscope for endoscopic instrument channel inspection

Technical Field

The present invention relates to an endoscope structure, in particular to a flexible endoscope for endoscopic instrument channel inspection.

Background

With the development of modern medical science and the progress of the scientific and technological fields of microelectronics, optics, materials science, computer technology and the like, the minimally invasive endoscope diagnosis and treatment technology is an important component of modern clinical medicine and even develops into a main diagnosis and treatment means in certain specialties. The popularization of minimally invasive endoscope diagnosis and treatment technology is beneficial to the premise of benefiting patients, and the endoscope must be cleaned and sterilized according to relevant regulations of endoscope cleaning and sterilizing specifications issued by the national health and council committee, so that the endoscope is ensured not to have cleaning and sterilizing dead angles. Because the instrument channel structure of the endoscope is special, especially the soft endoscope insertion section is generally longer and has a complex structure, the soft high polymer material channel tube has the possibility of aging and damage of instruments through abrasion and the like, at present, because of the lack of visual inspection tools, the cleaning cleanliness and the abrasion degree of the instrument channel cannot be observed under the visual condition, and the risk of forming a biological membrane and causing a series of cross infection due to incomplete cleaning exists.

Disclosure of Invention

The flexible endoscope for the endoscope instrument channel inspection is simple in structure, can be used for inspecting instrument channels of hard and flexible endoscopes, effectively evaluates the cleaning condition and the abrasion degree of the instrument channels of the endoscope, and improves the accuracy of the endoscope; the endoscope device channel maintenance device solves the technical problem that an endoscope device channel in the prior art is prone to generating endoscopic blind areas and cannot be effectively maintained, and therefore the service life of an endoscope is shortened.

The technical problem of the utility model is solved by the following technical scheme: a flexible endoscope for endoscope instrument channel examination comprises an endoscope tube, wherein an image sensor is arranged at the tip part of the endoscope tube, and a light guide fiber is arranged outside the image sensor; the endoscope tube is a flexible tube, the tip of the endoscope tube is provided with a connecting structure, and the endoscope tube is detachably connected with accessories through the connecting structure. The flexible tube can be adapted to a hard endoscope and a soft endoscope, and is convenient for examining mechanical channels of the two endoscopes. The connecting structure at the front end of the endoscope tube can be provided with structures such as a cleaning brush or an expander and the like which are selected according to requirements at the front end, so that the endoscope tube can meet different use requirements.

Because the internal structure of the medical endoscope is complex, the instrument channel pipe penetrates into the insertion pipe together with an electric wire, a light guide bundle and the like, the instrument channel has the possibility of local bending, folding, channel flattening and the like, the distortion of the instrument channel can influence the trafficability of medical instruments, liquid and the like, the water injection flow is influenced slightly, the image quality is reduced, and the endoscope is damaged seriously. After the reamer is arranged at the head end of the front end part of the flexible endoscope, the distorted position can be found when the flexible endoscope is introduced into the instrument channel, and the distorted position is expanded and guided.

Since the medical endoscope is subjected to a surgical operation, the inner and outer surfaces of the endoscope need to be cleaned, sterilized and disinfected, the instrument channel of the endoscope is placed in the insertion tube, and the distorted positions such as folds of the instrument channel are easily adhered by blood clots, mucus and the like, and even if the cleaning brush is used in the invisible channel, the complete cleaning is difficult, which can cause the risk of virus infection of a patient. After the cleaning brush is installed at the head end of the flexible endoscope, pollutants such as blood clots and the like can be removed and confirmed under the visual condition, the cleanness of a medical endoscope channel is ensured, and the risk that a patient is infected by the pollutants in an instrument channel is greatly reduced.

Preferably, the difference between the diameter of the endoscope tube and the diameter of the endoscopic instrument channel to be examined is 0.1 mm-1 mm. The endoscope tube can be inserted into the instrument barrel, and meanwhile, the manufacturing and the forming are convenient as much as possible.

Preferably, the mirror tube is formed by a spiral steel strip, and a sealing sleeve is wrapped outside the spiral steel strip. The flexible endoscope is used for inspecting an instrument channel of a medical endoscope, in the medical endoscope, the opening aperture of the instrument channel is generally betweenphi 1 andphi 3, the channel length is generally between 400 and 1000, the flexible endoscope required to be opened into the instrument channel must be small enough, the outer diameter of the flexible endoscope is smaller than that of the instrument channel, and the flexible endoscope manufactured in this way is thin and long and is easy to break when penetrating into the instrument channel, so the performance of the insertion tube of the flexible endoscope needs to have radial rigidity and axial flexibility. The spiral steel strip is formed by spirally selecting ultrathin steel strips, and then the spiral steel strips are coated with high polymer materials to ensure the sealing and the sliding guiding performance of the insertion tube. Gaps are reserved between every two sections of the spiral steel belt structure, and circular arc bending can be achieved within a required range. Meanwhile, when the endoscope tube is led into the instrument channel of the endoscope, the endoscope tube can bear enough thrust to overcome the resistance brought by the channel wall of the instrument channel.

Preferably, the connecting structure comprises a thread groove, the fitting comprises a hollow through hole, and a thread structure matched with the thread groove is arranged on the inner wall of the through hole. The threaded connection structure is simple, and the through hole in the center of the accessory ensures that the image sensor at the tip of the endoscope tube can directly observe the condition in the instrument channel.

Preferably, the other end of the mirror tube is connected with a display device through a handle, a light source is arranged in the handle, and the light source is connected with the light guide fiber. The handle is internally provided with the light source, so that the structure is simple and the operation is convenient. The handle can be directly connected to the portable liquid crystal display through a plug, so that the flexibility is good; and the display control all-in-one machine can be connected through a connecting wire according to the requirement, so that the image definition is improved.

Therefore, the rigid electronic endoscope of the present invention has the following advantages: the endoscope tube is a flexible tube, can enter into a rigid endoscope instrument channel for examination, can also enter into a soft endoscope instrument channel for examination, and by means of a liquid crystal display screen, under a visual state, the endoscope blind area of the soft endoscope instrument channel and the rigid endoscope instrument channel is thoroughly solved, and the cleaning cleanliness and the abrasion degree of the endoscope instrument channel are evaluated in the whole process, so that the endoscope instrument channel is thoroughly cleaned, and a series of cross infection risks caused by the cleaning are avoided, and the accurate and reliable guarantee is provided. The utility model can also provide timely maintenance by finding out slight damage in the endoscope instrument channel so as to avoid serious damage, and provides accurate and reliable guarantee for scientific maintenance, loss reduction and service life extension in the endoscope cleaning process. In addition, the endoscope instrument channel can be cleaned or maintained under a visual condition by matching the connecting structure at the end part of the endoscope tube with a corresponding channel maintenance tool.

Drawings

FIG. 1 is a schematic view of a flexible endoscope for endoscopic instrument channel inspection.

Fig. 2 is a schematic end view of fig. 1.

Fig. 3 is a cross-sectional view of the mirror tube of fig. 1.

Fig. 4 is a schematic view of the tip end of fig. 1.

Fig. 5 is a schematic diagram of the application of fig. 1.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b):

as shown in fig. 1 and 2, a flexible endoscope for endoscopic instrument channel examination includes atube 2, an image sensor CCD mounted on adistal end portion 1 of thetube 2, and alight guide fiber 6 mounted around animage sensor 5. The other end of the tube is provided with ahandle 3, a light source part is arranged in thehandle 3, and the light source part is connected with aguide fiber 6 and used for conducting illumination light. Thehandle 3 is provided with a connectingplug 4, and the connectingplug 4 can be used for being directly connected with the portableliquid crystal display 12 or being externally connected with a display and control integratedmachine 14 through a connecting wire 13 (as shown in fig. 5).

As shown in figure 3, thelens tube 2 is formed by spirally winding anultrathin steel strip 7, and a sealing sleeve 8 made of PEBAX material is wrapped outside the spiral steel strip to ensure the sealing and smooth performance of the lens tube. Gaps are reserved between every two sections of the structure of thespiral steel belt 7, and circular arc bending can be achieved within a required range. Meanwhile, when theendoscope tube 2 is led into the instrument channel of the endoscope, enough thrust can be borne to overcome the resistance brought by the channel wall of the instrument.

As shown in FIG. 4, aspiral groove 11 is attached to the distal end of thescope tube 2, and anexpander 9 or awashing brush 10 is detachably attached to the end of the scope tube by a screw.

When in use, the endoscope tube is inserted into an instrument channel of the endoscope, the diameter of the endoscope tube is 1.6mm, and the diameter of the instrument channel is 2 mm. The condition in the instrument channel can be observed through the flexible endoscope tube, and when the dilator is arranged at the front end of the endoscope tube, the instrument channel can be tidied through the dilator; when the cleaning brush is installed at the front end of the endoscope tube, the instrument channel is cleaned through the cleaning brush, and the infection risk of pollutants is reduced.

Claims (5)

1. A flexible endoscope for endoscopic instrument channel examination, characterized by: comprises a lens tube, wherein the front end part of the lens tube is provided with an image sensor, and a light guide fiber is arranged outside the image sensor; the endoscope tube is a flexible tube, the tip of the endoscope tube is provided with a connecting structure, and the endoscope tube is detachably connected with accessories through the connecting structure.

2. The flexible endoscope for endoscopic instrument channel inspection according to claim 1, wherein: the difference between the diameter of the endoscope tube and the diameter of the endoscope instrument channel to be inspected is 0.1 mm-1 mm.

3. The flexible endoscope for endoscopic instrument channel examination of claim 1 or 2, wherein: the endoscope tube is formed by a spiral steel belt, and a sealing sleeve is wrapped outside the spiral steel belt.

4. The flexible endoscope for endoscopic instrument channel examination of claim 1 or 2, wherein: the connecting structure comprises a thread groove, the accessory comprises a hollow through hole, and a thread structure matched with the thread groove is arranged on the inner wall of the through hole.

5. The flexible endoscope for endoscopic instrument channel examination of claim 1 or 2, wherein: the other end of the mirror tube is connected with a display device through a handle, a light source is arranged in the handle, and the light source is connected with the light guide fiber.

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