CN114098590A

CN114098590A - Tube for self-irrigation drainage type ureteroscope and self-irrigation drainage type ureteroscope

Info

Publication number: CN114098590A
Application number: CN202010904355.9A
Authority: CN
Inventors: 程跃; 李强; 谢国海
Original assignee: Ningbo Xinwell Medical Technology Co Ltd
Current assignee: Ningbo Xinwell Medical Technology Co Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2022-03-01
Also published as: WO2022048450A1

Abstract

The invention provides a tube for a self-irrigation drainage type ureteroscope and the self-irrigation drainage type ureteroscope, wherein the ureteroscope comprises an operating part and a mirror main body, wherein the mirror main body has an operating end and a working end, the operating portion is provided at the operating end of the mirror main body, wherein the mirror main body comprises a tube for the self-drainage ureteroscope, at least one working component and an image acquisition component, the image acquisition assembly is arranged at the end part of the tube for the self-irrigation drainage ureteroscope, the tube for the self-irrigation drainage ureteroscope is provided with at least one working channel, a drainage channel for supply and a water inlet channel, wherein the working member is adapted to be mounted to the working channel, the exhaust channel and the water inlet channel being spaced apart and the exhaust channel being for discharging moisture and debris, the water inlet channel being for water inlet.

Description

Tube for self-irrigation drainage type ureteroscope and self-irrigation drainage type ureteroscope

Technical Field

The invention relates to the field of medical instruments, in particular to a tube for a self-irrigation drainage type ureteroscope and a self-irrigation drainage type ureteroscope.

Background

A ureteroscope is a device that can be inserted from the urethral opening to the ureter or to the renal site. Ureteroscopes are equipped with illumination, and lithotripsy devices so that during surgery a physician can use the ureteroscope to view the interior of the ureter or kidney and perform directional clearance of stones at some locations.

The ureteroscope can be mainly divided into a hard ureteroscope and a soft ureteroscope, wherein the hard ureteroscope has higher hardness, is difficult to bend, is suitable for being operated in a straight line or in a position with smaller bending, and has larger application limitation, and the soft ureteroscope can be bent to reach a position which is difficult to reach by the hard ureteroscope, so that the defects of the hard ureteroscope are overcome.

However, there are still some problems in practical use of soft lenses. In detail, the main components of the flexible ureteroscope include an operation portion, a sheath 1P and a flexible main body 2P, wherein the operation portion is generally disposed at the end of the flexible main body 2P exposed outside the body to operate the other end of the flexible main body 2P, and the flexible main body 2P is controlled to bend to smoothly enter a target position inside the patient body, however, since the flexible main body 2P is a flexible structure, it is necessary to expand the ureter by means of the sheath 1P to reach the target position.

The general operation process of the ureter soft lens is as follows, firstly, the lens sheath 1P is inserted from the urethral orifice by utilizing the guiding function of the guide wire, the soft lens main body 2P is inserted along the inner wall of the lens sheath 1P on the premise that the lens sheath 1P provides a passage with a proper size for the soft lens main body 2P, the front end of the soft lens main body 2P is controlled to be close to the calculus, a plurality of working channels are formed by utilizing the soft lens main body 2P to carry out the operations of flushing, calculus breaking and the like, and meanwhile, an annular passage is formed between the soft lens main body 2P and the lens sheath 1P to discharge water with the calculus. That is, for the entire ureteral soft lens, the discharge passage 10P is located between the soft lens body 2P and the lens sheath 1P, and the water inlet passage is located in the soft lens body 2P. The discharge of the ureter soft lens depends on the space formed by the outer wall of the soft lens main body 2P and the inner part of the lens sheath 1P, the sizes of the soft lens main body 2P and the lens sheath 1P are smaller due to the limitation of the size of the ureter, and the space for actually supplying drainage or removing the calculus is not large due to the annular design of the discharge channel 10P. In addition, because the soft lens main body 2P is bendable, the form of the soft lens main body 2P has uncertainty under the influence of various factors when inside the lens sheath 1P, the distance between the outer wall of the soft lens main body 2P and the inner wall of the lens sheath 1P can be far at some positions to facilitate the passage of broken stones, and the distance between the outer wall of the soft lens main body 2P and the inner wall of the lens sheath 1P is near at some positions due to the fact that the soft lens main body 2P is bent, which may cause broken stone blockage.

Referring to fig. 1, during the lithotripsy, a holmium laser 3P of the soft lens body 2P may protrude from the distal end of the lens sheath 1P to lithotripsy a hard region which is difficult to reach by the lens sheath 1P, which also means that the lithotripsy may be jammed between the soft lens body 2P and the lens sheath 1P, thereby causing an obstruction to the movement of the soft lens body 2P. In the case of a serious blockage, the soft lens body 2P may not be able to move relative to the sheath 1P, and the soft lens body 2P and the sheath 1P need to be taken out at the same time, and the soft lens body 2P can be operated again to move relative to the sheath 1P after the stones causing the blockage are cleaned. This requires the patient to re-undergo insertion of the sheath 1P, potentially increasing the risk of infection.

Further, during lithotripsy, since the soft lens body 2P extends outward from the distal end of the sheath 1P, the inlet of the annular discharge passage 10P is located at the end of the sheath 1P rather than the end of the soft lens body 2P. That is, the inlet position of the discharge passage 10P has a distance from the position where the soft lens body 2P performs calculus crushing. This means that after the stone is broken at the distal end position of the soft lens body 2P, it is sucked to the entrance of the discharge channel 10P and discharged by means of remote suction. Obviously, this way requires the ureteroscope to provide a large suction force so that the crushed stones farther from the discharge channel 10P can be sucked to the inlet position of the discharge channel 10P. In this process, the control of the attraction is particularly critical, if it is too large, it is liable to cause damage to the body organs, and if it is too small, the crushed stones cannot be completely cleared.

Disclosure of Invention

An object of the present invention is to provide a tube for a self-irrigating ureteroscope and a self-irrigating ureteroscope, which can effectively clean crushed stones and minimize damage to body organs.

Another object of the present invention is to provide a tube for a self-irrigating ureteroscope and a self-irrigating ureteroscope, in which a discharge inlet and a discharge outlet of a discharge channel of the self-irrigating ureteroscope are located at an end of a scope body, that is, the discharge inlet of the discharge channel can be located as close to a crushed stone position as possible during a crushing process, thereby facilitating discharge of the crushed stone.

It is another object of the present invention to provide a tube for a self-irrigating ureteroscope and a self-irrigating ureteroscope, wherein the self-irrigating ureteroscope provides a small suction force to aspirate a crushed stone due to the proximity of the aspiration position and the crushed stone position.

Another object of the present invention is to provide a tube for a self-irrigating ureteroscope and a self-irrigating ureteroscope, in which the discharge inlet of the discharge channel is located at the end of the scope body, so that when the end of the scope body is bent to protrude into a more concealed position for performing calculus crushing, the discharge channel can also protrude together to facilitate the removal of the calculus.

It is another object of the present invention to provide a tube for a self-irrigating ureteroscope and a self-irrigating ureteroscope, wherein the self-irrigating ureteroscope does not need to rely on a scope sheath during operation, so that a discharge channel is formed without being affected by a change in the relative positions of the scope sheath and a scope body.

It is another object of the present invention to provide a tube for a self-irrigating ureteroscope and a self-irrigating ureteroscope, wherein a scope body of the self-irrigating ureteroscope is provided with the discharge channel itself, and the discharge channel provided to the scope body can be designed to be larger in size with respect to a previous annular channel to facilitate discharge of crushed stones.

It is another object of the present invention to provide a tube for a self-irrigating ureteroscope and a self-irrigating ureteroscope, in which the size of the self-irrigating ureteroscope can be reduced because the scope body does not need to be attached to a scope sheath.

It is another object of the present invention to provide a tube for a self-irrigating drainage ureteroscope and a self-irrigating drainage ureteroscope, in which the scope body is formed with the discharge channel and a water inlet channel for supplying water, so that the scope body itself can accomplish the injection and discharge of water without relying on other components.

According to one aspect of the present invention, there is provided a self-irrigating drainage type ureteroscope comprising:

an operation part; and

a mirror main part, wherein the mirror main part has an operation end and a work end, the operation portion set up in the mirror main part the operation end, wherein the mirror main part includes that one from the formula of irritating ureter mirror is with pipe, an at least functional unit and an image acquisition device, image acquisition device be installed in the tip of using the pipe from formula of irritating ureter mirror, from the formula of irritating ureter mirror is formed with at least a working channel, a drainage channel and a inhalant canal, wherein the functional unit is suitable for being installed in the working channel, the working channel the drainage channel with inhalant canal keeps the interval and the drainage channel is used for discharging moisture and rubble, inhalant canal is used for intaking.

According to one embodiment of the invention, the tube for the self-irrigating ureteral endoscope comprises a tube body and a support member, wherein the support member coats at least part of the outer wall of the tube body, and the working channel, the drainage channel and the water inlet channel are arranged on the tube body.

According to one embodiment of the present invention, the supporting member includes a main frame and a coating layer, wherein the main frame is supported on the outer wall of the pipe body and the coating layer coats the main frame.

According to one embodiment of the invention, the tube body comprises at least a working tube body, a discharge tube body and an inlet tube body, wherein the working tube body forms the working channel, the discharge tube body forms the discharge channel, the inlet tube body forms the inlet channel, and the working tube body, the discharge tube body and the inlet tube body are bound to the support.

According to one embodiment of the invention, the working pipe body, the discharge pipe body and the water inlet pipe body are integrally formed.

According to an embodiment of the present invention, the working pipe body, the discharge pipe body, the water inlet pipe body and the support member are filled with a soft material therebetween, wherein the soft material has a hardness less than that of the support member, the working pipe body, the discharge pipe body and the water inlet pipe body, respectively, to form a hard-soft-hard structure.

According to an embodiment of the present invention, the pipe main body includes at least a working pipe body, a discharge pipe body and a water inlet pipe body, wherein the working pipe body forms the working channel, the discharge pipe body forms the discharge channel, the water inlet pipe body forms the water inlet channel, and the main frame simultaneously surrounds the working pipe body, the discharge pipe body and the water inlet pipe body to bind the working pipe body, the discharge pipe body and the water inlet pipe body together and to allow a compression between the working pipe body, the discharge pipe body and the water inlet pipe body.

According to one embodiment of the invention, the self-irrigating drainage type ureteroscope tube is provided with a working end surface, the discharge channel is provided with a discharge inlet and a discharge outlet, the discharge outlet and the discharge inlet are communicated, the working channel is provided with a working inlet and a working outlet, the working inlet and the working outlet are communicated, and the working inlet and the discharge inlet are both positioned on the working end surface.

According to an embodiment of the invention, the working end face comprises a first partial working end face, a connecting face and a second partial working end face, wherein the connecting face extends between the first partial working end face and the second partial working end face and the first partial working end face protrudes from the second partial working end face, the discharge inlet is located at the second partial working end face, and the working inlet is located at the first partial working end face.

According to another aspect of the invention, the invention provides a self-irrigating ureteroscope tube which is suitable for a functional component of a ureteroscope to pass through, wherein the self-irrigating ureteroscope tube is formed with at least one working channel, one discharging channel and one water inlet channel, the functional component is suitable for being installed on the working channel, the discharging channel and the water inlet channel are kept at intervals, the discharging channel is used for discharging moisture and gravels, and the water inlet channel is used for feeding water.

Drawings

Fig. 1 is a schematic diagram of the working process of a ureter soft lens in the prior art.

Fig. 2A is a schematic diagram of an application of a self-irrigating ureteroscope according to a preferred embodiment of the present invention.

Fig. 2B is an overall schematic view of the self-irrigating ureteroscope according to the above preferred embodiment of the present invention.

Fig. 3A is a schematic view of a lens body of the self-irrigating ureteroscope according to the above-described embodiment of the present invention.

Fig. 3B is a schematic cross-sectional view of a working end side of the self-irrigating ureteroscope according to the preferred embodiment of the present invention.

Fig. 3C is a schematic view of a longitudinal section of the self-irrigating ureteroscope according to the above preferred embodiment of the present invention.

FIG. 4 is a schematic diagram illustrating a manufacturing process of a tube for a self-irrigating ureteroscope according to the preferred embodiment of the present invention.

Fig. 5A is a schematic view of the self-irrigating ureteroscope according to the above preferred embodiment of the present invention entering under guide wire and inner core guidance.

Fig. 5B is a schematic view of the self-irrigating ureteroscope according to the above preferred embodiment of the present invention entering under the guidance of two guide wires.

Fig. 6 and 7 are schematic views illustrating the operation of the self-irrigating ureteroscope according to the above embodiment of the present invention.

Fig. 8 is a schematic view illustrating a method for manufacturing a tube for a self-irrigating ureteral mirror according to another preferred embodiment of the present invention.

Fig. 9 is a schematic cross-sectional view of the tube for the self-irrigating ureteral endoscope according to the above preferred embodiment of the present invention.

Fig. 10 is a schematic view illustrating a method for manufacturing a tube for a self-irrigating ureteral mirror according to another preferred embodiment of the present invention.

Fig. 11 is a schematic cross-sectional view of the tube for the self-irrigating ureteral endoscope according to the above preferred embodiment of the present invention.

Fig. 12 is a schematic view of a self-irrigating ureteral catheter and a method for manufacturing the same according to another preferred embodiment of the present invention.

Fig. 13A to 13C are schematic views illustrating an application process of the self-irrigating ureteroscope according to the above preferred embodiment of the present invention.

Fig. 14 is a schematic view of a tube for a self-irrigating ureteral mirror according to another preferred embodiment of the present invention.

Fig. 15 is a schematic view of a tube for a self-irrigating ureteral mirror according to another preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

References to "one embodiment," "an embodiment," "example embodiment," "various embodiments," "some embodiments," etc., indicate that the embodiment described herein may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the feature, structure, or characteristic. In addition, some embodiments may have some, all, or none of the features described for other embodiments.

Referring to fig. 2A to 7, a self-irrigating drainage type ureteroscope 1 according to a preferred embodiment of the present invention is illustrated.

The self-irrigating and discharging type ureteroscope 1 can be applied to treatment of ureteral diseases, and a person skilled in the art can understand that the self-irrigating and discharging type ureteroscope 1 can also be used for treating other diseases according to requirements.

The self-irrigating and discharging type ureteroscope 1 is not required to be provided with an independent scope sheath, and is provided with a discharging channel. In other words, the self-irrigating ureteroscope 1 can be directly inserted into the ureter for operation without entering the ureter with a scope sheath when being operated. It will be appreciated that the traditional approach of using a sheath to first enter the ureter is in fact a blind operation, and that the operator can easily cause damage to the ureter by inserting the sheath along the ureter without knowing the internal state of the patient. The self-irrigating drainage ureteroscope 1 can be directly inserted into a ureter, and because the end of the self-irrigating drainage ureteroscope 1 can collect information, the operations are completed under visualization, and the damage to a patient can be reduced as much as possible.

In detail, the self-irrigating-discharging ureteroscope 1 may include a main body 10 and an operation portion 20, wherein the operation portion 20 is disposed at an operation end 1002 of the main body 10 to control a working end 1001 of the main body 10. The operation end 1002 and the working end 1001 are both ends of the mirror body 10, respectively.

The mirror body 10 may include a self-irrigating ureteroscope tube 11 and at least one functional component 12, wherein the functional component 12 may be mounted to the self-irrigating ureteroscope tube 11, and the functional component 12 may be, but is not limited to, a guide wire 100, an inner core 200, and a holmium laser 300. The guide wire 100 can guide the mirror body 10 into a target position, and the holmium laser 300 can be used for lithotripsy. It should be understood by those skilled in the art that the type of the functional component 12 may be different according to different application scenarios of the self-irrigating and discharging ureteroscope 1, and the operator may select the type according to the needs. In addition, it should be noted that the functional component 12 may be configured to mate with the self-irrigating ureteral endoscope 11, or may be the functional component 12 of a type currently available in the market.

The mirror body 10 is formed with at least a water inlet passage 110, a water outlet passage 120, and a working passage 130, wherein the functional part 12 can be installed through the water inlet passage 110, the working passage 130 is used for water inlet, and the water outlet passage 120 can be used for water outlet or debris discharge. The water inlet passage 110, the water outlet passage 120 and the working passage 130 are independent of each other. The water inlet channel 110, the exhaust channel 120 and the working channel 130 may extend between the working end 1001 and the working end 1002 of the mirror body 10, respectively.

In more detail, the inlet channel 110 has an inlet outlet 1101 and an inlet 1102, wherein the inlet 1102 and the outlet 1101 are connected to each other, the inlet 1101 can be disposed at the working end 1001 of the mirror body 10, and the inlet 1102 can be disposed at the working end 1002 of the mirror body 10. The discharge channel 120 has a discharge outlet 1201 and a discharge inlet 1202, wherein the discharge inlet 1202 and the discharge outlet 1201 are capable of communicating with each other, the discharge inlet 1202 may be provided at the working end 1001 of the mirror body 10, and the discharge outlet 1201 may be provided at the operating end 1002 of the mirror body 10. The working channel 130 has a working outlet 1301 and a working inlet 1302, the working inlet 1302 and the working outlet 1301 being capable of communicating with each other, the working inlet 1302 being arranged at the working end 1002 of the mirror body 10, the working outlet 1301 being arranged at the working end 1001 of the mirror body 10.

In other words, the water inlet 1101 of the water inlet channel 110, the water outlet 1202 of the water outlet channel 120 and the working outlet 1301 of the working channel 130 of the mirror body 10 can all be located at the working end 1001 of the mirror body 10.

When the self-irrigating drainage type ureteroscope 1 is operated, after the self-irrigating drainage type ureteroscope 1 is introduced into a kidney, water flows to the working outlet 1301 through the working inlet 1302 of the working channel 130 and then enters the kidney, and a stone crushing component extends from the water inlet 1102 of the water inlet channel 110 to the water inlet 1101 and then enters a target position in the kidney to perform stone crushing operation. Excess moisture and debris may flow from the discharge inlet 1202 to the discharge outlet 1201 of the discharge passage 120, exiting the patient's body.

Since the discharge inlet 1202 of the discharge passage 120 and the inlet water outlet 1101 of the inlet passage 110 are both located at the working end 1001 of the mirror body 10, at least a portion of the mirror body 10 near the working end 1001 is bendable and can be operated by the operating portion 20, so that when the working end 1001 is operated to be near a target position, the discharge inlet 1202 follows the inlet water outlet 1101 of the inlet passage 110 together near the target position, and a small force is applied to the discharge inlet 1202 of the discharge passage 120 to suck away crushed stones near the working end 1001. The discharge inlet 1202 may also be flexibly repositioned following the working end 1001 to accurately attract debris or other debris. In this way, on the one hand, the cleaning of the gravels, especially the gravels hidden in the hidden positions, is facilitated, and on the other hand, the damage to the viscera is facilitated to be reduced.

Further, in the conventional ureteroscope, the discharge passage 120 is located between the sheath and the soft lens body 10, and is annular, and the gap therebetween is not large, which is likely to cause clogging with crushed stones. In this embodiment, the cross-section of the discharge passage 120 may be configured to be circular and elliptical to provide a larger passage for the discharge of debris to reduce the likelihood of debris clogging.

In addition, in the conventional ureteroscope, the formation of the discharge channel 120 is limited to the movement of the sheath and the soft lens body, and therefore sometimes the discharge channel 120 is narrowed because the sheath or the soft lens body is bent at some position due to the bending. In the present embodiment, the discharge passage 120 is formed in the scope body 10, not limited to the scope sheath, and the probability of stenosis due to bending or movement can be reduced, and the size of the discharge passage 120 itself can be designed to be large, so that the crushed stone can be more easily discharged from the discharge passage 120.

It should be noted that, the size of the original ureteroscope is limited to the sheath and the flexible body, in this embodiment, the size of the self-irrigating ureteroscope 1 is not limited by the sheath, that is, the whole self-irrigating ureteroscope 1 can be designed to be smaller, and the size of the discharge channel 120 is larger than that which can be designed before.

Further, the self-irrigating ureteroscope tube 11 may form the water inlet channel 110, the drainage channel 120, and the working channel 130.

The outer wall of the tube 11 for the self-irrigating and discharging ureteroscope is smooth, at least after entering the ureter, so that the self-irrigating and discharging ureteroscope 1 can enter and exit the human body smoothly. The material of the self-priming ureteroscope tube 11 may be smooth, and the outer wall of the self-priming ureteroscope tube 11 may be smooth after being processed by a process, such as a grinding process or a coating process. It will be understood by those skilled in the art that the foregoing is illustrative only and is not to be construed as limiting the invention.

The operation end 1002 and the working end 1001 of the scope body 10 are two ends of the tube 11 for the self-irrigation and drainage type ureteroscope. The entire outer surface of the portion of the self-irrigating ureteral catheter 11 extending between the operating end 1002 and the working end 1001 may have no ports or slits, so that the self-irrigating ureteral catheter 11 can smoothly enter and exit the human body. Optionally, the cross section of the tube 11 for the self-irrigating ureteral endoscope is substantially circular, so that the tube 11 for the self-irrigating ureteral endoscope is uniformly stressed and the stress on the peripheral side is reduced.

Further, the operation portion 20 includes at least one operation element 21, and the operation element 21 is controllably connected to the working end 1001 of the mirror body 10. For example, when the working end 1001 of the mirror body 10 reaches a predetermined position, the user can operate the operation element 21 so that the end of the mirror body 10 is bent. In other words, the operating element 21 controls the bending work of the outer end portion of the mirror body 10.

In an embodiment of the present invention, the self-discharging ureteroscope 1 may include a control wire, which is pre-arranged inside the scope body 10 and extends along the scope body 10, and when the operation element 21 of the operation part 20 is rotated, the control wire pulls the working end 1001 of the scope body 10, so that the end of the scope body 10 is controlled to rotate in a predetermined direction by the operation part 20.

Further, the operation portion 20 may further include a plurality of interfaces for passing or connecting other components, such as the guide wire 100, the inner core 200, the lithotripsy device, the flushing device 4, the suction device 3, and the like. For example, the operation portion 20 includes a first port 22, a second port 23 and a third port 24, the first port 22 is communicated with the water inlet passage 110, the second port 23 is communicated with the working passage 130, and the third port 24 is communicated with the water outlet passage 120. For example, the first port 22 is used for passing through the working device 2, the second port 23 is used for connecting with the flushing device 4, and the third port 24 is used for passing through the guide wire 100, the inner core 200 and connecting with the suction device 3.

The operating unit 20 may further comprise an information interface 25, and a terminal device 5 may be connected to the information interface 25 so as to be communicatively connected to an image capturing device 13, i.e., information captured by the image capturing device 13 may be processed or displayed by the terminal device 5.

The operating portion 20 further includes an adjustment hole 26, and the adjustment hole 26 is used to adjust the operation of the discharge passage 130. For example, when the adjusting hole 26 is pressed, the discharging passage 130 is in an operating state, i.e., a state of sucking the crushed stone and sundries, and when the adjusting hole 26 is released, or in a natural state, the discharging passage 130 is in an inactive state, i.e., the sucking and discharging of the sundries are stopped.

Further, the tube 11 for the self-irrigating ureteral endoscope includes a tube body 111 and a support member 112, wherein the water inlet channel 110, the water outlet channel 120 and the working channel 130 are located on the tube body 111, and the support member 112 is disposed on the tube body 111 and can support the tube body 111. Preferably, the inner wall of the pipe body 111 is provided to be smooth to form the water inlet passage 110, the discharge passage 120, and the working passage 130, respectively. Alternatively, the cross-sections of the water inlet passage 110, the discharge passage 120, and the working passage 130 may be circular or elliptical.

In detail, at least a portion of the support 112 covers at least a portion of the outer wall of the tube body 111. The support member 112 may form an installation space 1120, and the tube main body 111 may be installed through the installation space 1120, but it is understood that the arrangement between the support member 112 and the tube main body 111 may be various.

During the use process, the outer wall of the support member 112 needs to be in contact with the ureter or other tissues of the patient, and the outer wall of the support member 112 becomes at least part of the outer wall of the self-irrigating ureteroscope 1. It will be appreciated that the outer wall of the support member 112 may be smooth, or at least smooth after entry into the patient, to facilitate entry and exit into the patient.

The material of the support member 112 and the tube main body 111 may be the same or different. The support member 112 may be bendable, and the tube body 111 may be bendable. The self-irrigating ureteral endoscope 11 of the endoscope main body 10 is operably connected to the operation unit 20. When the tube 11 for the self-irrigating ureteral endoscope is manipulated and then bent at the side of the working end 1001, the tube body 111 may be bent to simultaneously bend the supporting member 112. It is understood that the tube main body 111 may include a passive bending portion and an active bending portion, both of which may be bent along the surface of the human organ, but the active bending portion may be manipulated through the operating part 20 so as to actively perform bending according to the operator's expectation.

The pipe body 111 with the water inlet passage 110, the discharge passage 120, and the working passage 130 may be injection molded, or the like.

The supporting member 112 may include a coating layer 1121 and a main frame 1122, wherein the coating layer 1121 is disposed on the main frame 1122, the main frame 1122 has a certain rigidity to perform a supporting function, and the coating layer 1121 may be, but is not limited to, attached to the surface of the main frame 1122 by coating, injection molding, adhesion, or the like. The main frame 1122 may be formed by interweaving a plurality of supporting wires, and may be made of a metal material or a non-metal material.

In addition, the hardness of the main frame 1122 may be greater than that of the coating layer 1121, so that the coating layer 1121 maintains a certain hardness by the main frame 1122 while providing a certain softness. The coating layer 1121 may be made of plastic, and the main frame 1122 may be embedded into the coating layer 1121, so that the tube 11 for the self-irrigated ureteral endoscope of the self-irrigated ureteral endoscope 1 has flexibility of a soft lens and guidance of a semi-hard lens, so that the self-irrigated ureteral endoscope can conveniently enter and exit from a human body. Preferably, the cladding layer 1121 is integrally formed on the main frame 1122.

The tube body 111 of the tube 11 for the self-irrigating ureteroscope 1 may include at least a working tube body 1111, a discharging tube body 1112, and a water inlet tube body 1113, wherein the working tube body 1111, the discharging tube body 1112, and the water inlet tube body 1113 are bound by the support 112, the working tube body 1111 is formed with the water inlet passage 110, the discharging tube body 1112 is formed with the discharging passage 120, and the water inlet tube body 1113 is formed with the working passage 130. In this embodiment, the working pipe 1111, the discharge pipe 1112, and the inlet pipe 1113 of the pipe main body 111 are integrally formed with each other.

Further, the mirror body 10 of the self-irrigating and discharging ureteroscope 1 further includes an image collecting device 13, wherein the image collecting device 13 may include at least one image collector 131 and at least one illuminator 132, and the illuminator 132 provides light for the image collector 131, so that the image collector 131 can smoothly collect images inside a human body.

The image acquisition device 13 may be mounted at the working end 1001 of the self-irrigated ureteral endoscope 11 of the endoscope main body 10, may be integrated with the self-irrigated ureteral endoscope 11, and may also be configured such that the self-irrigated ureteral endoscope 11 provides a special water inlet channel 110 for the image acquisition device 13. That is, the image capturing device 13 may be a stand-alone type or an integrated type. The image collector 131 and/or the illuminator 132, which may be the image collecting device 13, are integrated or separately provided.

Further, the image collecting device 13 of the self-irrigating ureteroscope 1 may be communicatively connected to a display device 14, so that the image collected by the image collecting device 13 may be displayed on the display device 14 to be observed by an operator. It is understood that the display device 14 may be a stand-alone device or integrated with the self-irrigating ureteroscope 1, for example, at the operating end 1002 of the scope body 10.

Further, the tube 11 of the self-irrigating ureteral endoscope of the endoscope main body 10 has a working end surface 113, wherein the water inlet 1101 of the water inlet channel 110, the water outlet 1202 of the water outlet channel 120 and the working inlet 1302 of the working channel 130 can be located on the working end surface 113. It should be noted that the working end surface 113 is not a plane.

In detail, the working end surface 113 includes a first partial working end surface 1131, a connecting surface 1132 and a second partial working end surface 1132, wherein the first partial working end surface 1131 is connected to the second partial working end surface 1132 through the connecting surface 1132. The first partial working end surface 1131 protrudes from the second partial working end surface 1132. Preferably, the first partial working end surface 1131, the connecting surface 1132 and the second partial working end surface 1132 are respectively configured in an arc shape to facilitate smooth entering and exiting inside the human body.

There is a height difference between the first partial working end surface 1131 and the second partial working end surface 1132, the working outlet 1301 of the working channel 130 and the inlet outlet 1101 of the inlet channel 110 may be formed on the first partial working end surface 1131, and the outlet inlet 1202 of the outlet channel 120 may be formed on the second partial working end surface 1132. During the stone breaking process, stone breaking and water discharging are performed at the position of the first partial working end surface 1131 located at the protrusion, and suction is performed at the position of the second partial working end surface 1132 located at the recess position for discharging.

The capture position of the image capture device 13 can be set on the protruding first partial working end surface 1131, so that the image capture device 13 can capture the image information of the foremost end of the mirror body 10 at all times. Because the work outlet 1301 protrudes from the discharge inlet 1202, moisture discharged from the work outlet 1301 can be flushed forward as much as possible, and the moisture is prevented from directly flowing back through the discharge inlet 1202. That is, in this way, moisture discharged from the work outlet 1301 can be made to function as much as possible. In addition, crushed debris at the first partial working end surface 1131 can be automatically directed to the second partial working end surface 1132 via the guiding action of the connecting surface 1132 to exit the patient through the discharge inlet 1202 of the discharge channel 120.

For the entire self-irrigating drainage ureteroscope 1, the working end 1001 of the self-irrigating drainage ureteroscope 1 may be arranged duckbill-shaped, the tube 11 of the self-irrigating drainage ureteroscope 1 may form a flat protrusion 114 at the working end 1001, and the first partial working end surface 1131 is located at the protrusion 114. The first partial working end surface 1131 occupies a smaller area relative to the second partial working end surface 1132. In other words, the second partial working end surface 1132 occupies a large area, so that the discharge inlet 1202 of the discharge passage 120 can be set large.

For the entire self-priming ureteroscope 1, the working end 1001 of the self-priming ureteroscope 1 may be arranged in a stepped manner, the first partial working end surface 1131 of the working end surface 113 of the tube 11 for the self-priming ureteroscope 1 may extend in an approximately vertical position, the connection surface 1132 may extend in an approximately horizontal position, the second partial working end surface 1132 may extend in an approximately vertical position, and the connection surface 1132 extends between the first partial working end surface 1131 and the second partial working end surface 1132, thereby forming an approximately stepped shape.

It is noted that the connection position between the working end surface 113 and the surrounding wall of the self-irrigating ureteroscope tube 11 is smooth and slippery, and the working end surface 113 itself is also designed to be smooth and slippery, so that when the self-irrigating ureteroscope 1 is inserted, the smooth working end 1001 can smoothly enter the patient to avoid damage to the patient's body tissue.

It is noted that the tube 11 of the self-irrigating ureteroscope 1 forms the protrusion 114 at the working end 1001, and the protrusion 114 occupies only a small portion of the working end surface 113. When the self-priming ureteroscope 1 enters a patient, the self-priming ureteroscope 1 forms the protrusion 114 with the working end 1001 with a smaller size and firstly extends into the patient, and then the whole working end 1001 is fed into the patient along the working end surface 113. In this way, on the one hand, the self-priming ureteroscope 1 is facilitated to enter the patient, and on the other hand, the risk of the entire working end 1001 of a larger size being suddenly introduced into the patient and being lost is reduced.

It should be noted that the water inlet of the working channel 130 and the water outlet of the discharge channel 120 may be controllable, either manually by an operator or electronically, so that the operator may free his/her hands to focus on operating the holmium laser 300 or other functional components 12.

Referring to fig. 5A to 7, a working process of the self-irrigating discharging-type ureteroscope 1 according to the above preferred embodiment of the present invention is illustrated, in which the self-irrigating discharging-type ureteroscope 1 is used to treat a renal pelvis calculus.

Referring to fig. 5A, 6 and 7, one end of a guide wire 100 is inserted along the ureter, an inner core 200 is inserted along the guide wire 100, and a self-irrigating ureteroscope tube 11 of the scope body 10 of the self-irrigating ureteroscope 1 is inserted along the inner core 200 via the water inlet channel 110. In this process, an image of a peripheral path may be acquired by the image acquisition device 13 disposed on the self-irrigating ureteral endoscope 11, so that an operator can conveniently judge the reached position.

After the working end 1001 reaches the set position, the guide wire 100 and the inner core 200 can be removed from the water inlet channel 110 and then placed into a means for breaking stones, such as the holmium laser 300, for the breaking treatment of stones, while water is introduced through the working channel 130 to the kidneys, broken stones are discharged through the discharge inlet 1202 of the discharge channel 120 and drained to maintain the kidneys at a reasonable pressure.

It should be noted that since the discharge inlet 1202 of the discharge channel 120 and the water inlet 1102 of the water inlet channel 110 are both located at the working end 1001, the self-priming ureteroscope 1 can suck and discharge gravels with a small force. In other words, the operator does not need to concentrate excessively on controlling the change in the magnitude of the acting force to smoothly attract the crushed stones, and the difficulty of the operation is reduced.

It is worth mentioning that since the discharge channel 120 can be dimensioned larger and not annular, but to provide a complete space, for example a space with a circular cross-section, crushed stones can be discharged easily, reducing the possibility of the crushed stones blocking the discharge channel 120. It is also worth mentioning that the size enlargement of the drainage channel 120 may not have an influence on the overall size of the self-irrigating ureteroscope 1.

In addition, it should be noted that the self-irrigating ureteroscope 1 may also be navigated by using two guide wires 100, for example, as shown in fig. 5B, the scope body 10 may be directly fed to a predetermined position under the guidance of the two guide wires 100.

It is worth mentioning that, since the working end 1001 of the scope body 10 of the self-irrigating ureteroscope 1 is designed to be step-shaped, when the scope body 10 enters the body along the guide wire 100 or other guiding component, the guide wire 100 or other guiding component is located in the water inlet channel 110 and the protruding portion of the working end 1001 can be supported by the guide wire 100 or other guiding component to facilitate the entry of the scope body 10. The working end 1001 of the scope body 10 is similar to riding on the guidewire 100 or other guiding component to facilitate entry of the scope body 10.

In addition, the image acquisition device 13 at the end can also acquire surrounding environment information at the front end, so that the operator can complete the endoscope entering in the visual environment.

It is worth mentioning that the discharge inlet 1202 of the discharge channel 120 of the self-irrigating ureteroscope 1 can be designed to be large, for example, to allow 1 mm to 2 mm, or even 2.5 mm, and furthermore, since the discharge inlet 1202 is close to the position of the crushed stone, the stones can be easily drawn into the discharge channel 120 from the discharge inlet 1202.

Therefore, the self-irrigating ureteroscope 1 has a reduced requirement for crushed stones, the bonds can be sucked without being crushed to a small size and then discharged, in the current market, the bonds can be sucked even after being powdered or hazed due to the limitation of the size of the discharge channel 120, and in the embodiment, the bonds in a certain size range can be directly sucked without being treated by crushed stones.

It is worth mentioning that the self-irrigation drainage type ureteroscope 1 has higher working efficiency. In particular, since stones within a certain size range can be directly sucked away, an operator only needs to concentrate on larger stones during the operation, and the stones with larger sizes can be sucked away immediately after being broken. In current ureteroscopes, however, when stones are fragmented to a small size and cannot be discharged through the passage between the sheath and the outer wall of the soft lens body, such stones need to be removed from the passage in which the holmium laser 300 is located by means of a stone-removing basket. That is, the operator needs to pause the lithotripsy and then replace the holmium laser 300 with a stone basket to remove the stones, which certainly has a great influence on the working efficiency, especially when the number of stones of this size is large, the operator needs to repeat many times to remove the stones. If the self-irrigating ureteroscope 1 provided by the present embodiment is used, since smaller stones can be directly aspirated, and in addition, larger stones for the original ureteroscope can be also evacuated from the evacuation channel 120, the operator does not need to use a stone-removal basket to inefficiently remove stones one by one.

In other words, for an operator using the self-irrigating ureteroscope 1, stones can be divided into two categories, stones that need to be broken and stones that can be directly aspirated away, so the operator only needs to concentrate on breaking large stones, so small stones can be directly evacuated through the evacuation channel 120 during the lithotripsy procedure.

In the existing stone operation, stones which an operator needs to face need to be divided into three types, stones which can be sucked away, stones which need to be broken, and stones which cannot be sucked away and are difficult to break, so that the operator needs to take a stone basket for assistance.

Referring to fig. 8 and 9, another embodiment of the self-irrigating drainage-type ureteroscope 1 according to the above preferred embodiment of the present invention is illustrated.

The present embodiment is different from the above embodiments mainly in the tube 11 for the self-irrigated drainage-type ureteroscope 1.

The tube 11 for the self-irrigating and discharging ureteroscope includes the tube body 111 and the supporting member 112, wherein the tube body 111 includes at least a working tube body 1111, a discharging tube body 1112, and a water inlet tube body 1113, and the working tube body 1111, the discharging tube body 1112, and the water inlet tube body 1113 are independent from each other.

The working pipe body 1111, the discharge pipe body 1112, and the water inlet pipe body 1113 pass through to the support 112 to form the installation space 1120, and a soft material is filled between the working pipe body 1111, the discharge pipe body 1112, the water inlet pipe body 1113, and the support 112 to fix the relative positions of the working pipe body 1111, the discharge pipe body 1112, the water inlet pipe body 1113, and the support 112. It is understood that the soft material does not need to fill the entire space between the working pipe 1111, the drain pipe 1112, the inlet pipe 1113 and the support 112, and the soft material can act as a stop and a fixing, for example, only fill the working pipe 1111, the drain pipe 1112 and the inlet pipe 1113 at the working end 1001.

Since the working pipe 1111, the discharge pipe 1112, and the water inlet pipe 1113 may be independently provided, the working pipe 1111, the discharge pipe 1112, and the water inlet pipe 1113 may be designed as needed, respectively. For example, the working pipe 1111 is used to form the water inlet channel 110, so the working pipe 1111 may be made of a material with good scratch resistance, and the exhaust pipe 1112 is used to exhaust waste in the kidney, so the exhaust pipe 1112 may be made of a material with good corrosion resistance.

In addition, the working tube 1111, the discharging tube 1112 and the water inlet tube 1113 may be made of a relatively hard material, and the soft material between the working tube 1111, the discharging tube 1112, the water inlet tube 1113 and the supporting member 112 may have a hardness lower than the hardness of the working tube 1111, the discharging tube 1112 and the water inlet tube 1113 and the hardness of the main frame 1122 of the supporting member 112, so as to form a structure similar to hard-soft-hard, thereby being able to bend along the internal structure of the human body while maintaining a certain rigidity of the self-priming ureteroscope 1 itself.

Referring to fig. 10 and 11, another embodiment of the self-irrigating drainage-type ureteroscope 1 according to the above preferred embodiment of the present invention is illustrated.

The tube 11 for the self-irrigating and discharging ureteroscope includes the tube body 111 and the supporting member 112, wherein the tube body 111 includes at least a working tube body 1111, a discharging tube body 1112, and a water inlet tube body 1113, and the working tube body 1111, the discharging tube body 1112, and the water inlet tube body 1113 are independent from each other. The support 112 covers the working pipe 1111, the discharge pipe 1112, and the inlet pipe 1113. That is, unlike the above-described embodiment, in the present embodiment, the supporter 112 does not need to fix the working pipe 1111, the discharge pipe 1112, and the inlet pipe 1113 by other media inside.

The main frame 1122 of the support 112 may be disposed along the surfaces of the working pipe body 1111, the discharge pipe body 1112, and the inlet pipe body 1113 to give a certain rigidity to the working pipe body 1111, the discharge pipe body 1112, and the inlet pipe body 1113, respectively. The coating layer 1121 may coat the main frame 1122 and the surfaces of the working pipe 1111, the discharge pipe 1112, and the water inlet pipe 1113.

In this embodiment, the main frame 1122 of the supporting member 112 forms a covering space to bind the working pipe 1111, the discharge pipe 1112, and the inlet pipe 1113 together. That is, the main frame 1122 may wrap the working pipe 1111, the discharge pipe 1112, and the water inlet pipe 1113, or may bind the common running pipe, the discharge pipe 1112, and the water inlet pipe 1113.

The working tube 1111, the discharge tube 1112 and the water inlet tube 1113 are pressed against each other in contact and may be capable of forming a certain slight gap, so that the support 112 and the tube body 111 are bent during a subsequent use, for example, when the self-priming ureteroscope 1 encounters a bent position, and a certain deformation space is left due to the mutual pressing between the working tube 1111, the discharge tube 1112 and the water inlet tube 1113 of the tube body 111, so that the working tube 1111, the discharge tube 1112 and the water inlet tube 1113 can be bent adaptively, rather than being forcibly bent together with the support 112. In addition, the material for manufacturing the supporting member 112 and the material for manufacturing the working tube 1111, the discharging tube 1112 and the water inlet tube 1113 may be different, so that the relatively movable contact modes, which respectively generate different acting forces during the bending process, are beneficial to adjusting the different acting forces, and reduce the phenomenon of stress concentration so as to reduce the probability of breakage of the tube 11 for the self-irrigation ureteroscope, thereby being beneficial to prolonging the service life of the self-irrigation ureteroscope 1.

Referring to fig. 12 to 13C, another embodiment of the self-irrigating drainage-type ureteroscope 1 according to the above preferred embodiment of the present invention and its application are illustrated.

In the present embodiment, the overall stiffness of the self-irrigating ureteroscope 1 is arranged to be different. In detail, the scope body 10 of the self-irrigating ureteroscope 1 is configured to have different hardness at various positions so that different bending can occur during the tube-entering process.

The self-irrigating ureteral endoscope 11 of the scope body 10 includes a first tube portion 11A and a second tube portion 11B, wherein the first tube portion 11A is located at a front end, and the second tube portion 11B is located at a rear end and is close to the operation portion 20 with respect to the first tube portion 11A.

The first tube part 11A is set to be less hard than the second tube part 11B, and the entire mirror body 10 assumes a state of soft front and hard back.

It will be appreciated that for the self-irrigating ureteroscope 1, which needs to pass through the bladder, ureter and then reach the kidney site, and needs to perform lithotripsy at various sites of the kidney, the first tube portion 11A of the scope body 10 is made softer to facilitate the alignment of the working end 1001 of the scope body 10 at various sites.

In other words, the first pipe section 11A is more easily bendable relative to the second pipe section 11B so that the first pipe section 11A may be brought into some more concealed position, and the second pipe section 11B is stiffer relative to the first pipe section 11A to facilitate operator control of pipe entry and subsequent depth of entry during operation, the stiffer allowing the operator to more precisely control the force.

Further, the first tube part 11A is bend-controllably connected to the operation part 20, and the operation part 20 and the first tube part 11A of the self-irrigating ureteral endoscope 11 of the endoscope main body 10 may be connected by a control wire, so that the bending of the first tube part 11A is controlled and the first tube part 11A can maintain the curvature after bending.

The first pipe section 11A includes at least a part of the pipe main body 111 and at least a part of the support member 112, wherein the support member 112 includes the main frame 1122 and the support layer, wherein the main frame 1122 is provided to be formed by interweaving the support wires, and in this embodiment, the density of the support wires in the first pipe section 11A is smaller than that in the second pipe section 11B, so that the second pipe section 11B has a higher hardness than the first pipe section 11A.

It is understood that the density of the coating layer 1121 of the support member 112 of the self-irrigating ureteral endoscope 11 may also be different between the first tube portion 11A and the second tube portion 11B, and the density of the coating layer 1121 may be smaller at the first tube portion 11A than at the second tube portion 11B, so that the hardness of the first tube portion 11A is smaller than that of the second tube portion 11B.

Further, the flexibility of the first pipe section 11A may be different at various positions, and the flexibility at the end of the first pipe section 11A remote from the second pipe section 11B may be smaller than that at the end close to the second pipe section 11B. In detail, the portion of the first tube portion 11A of the mirror body 10 close to the working end surface 113 may have a smaller curvature, and the portion far from the working end surface 113 close to the second tube portion 11B may have a larger curvature, for example, by the dense-front-back arrangement of the main frame 1122 of the support member 112 of the first tube portion 11A, the effect of simultaneously achieving large curvature and small curvature in the first tube portion 11B can be achieved, so as to adapt to the first tube portion 11B extending into different positions after entering the kidney.

Referring to fig. 13A to 13C, the first tube portion 11A of the self-irrigating ureteral catheter 11 may be formed to have a large curvature when entering the ureter from the bladder. It is understood that the self-irrigating ureteroscope tube 11, although arranged to be soft in the front and hard in the rear, has a certain hardness to maintain a desired degree of curvature when the first tube portion 11A is controlled to be bent to a certain degree. When the first length of tubing 11A is advanced into the kidney for fragmenting a stone located at the suprarenal glenoid location, the first length of tubing 11A may be controlled to bend and may be controlled to bend to a lesser extent. When the first length of tubing 11A is advanced into the kidney for fragmenting a stone located at the location of the infrarenal pelvis, the first length of tubing 11A may be controlled to bend and may be controlled to bend by a greater extent.

It is understood that the support 112 of the self-irrigating ureteroscope tube 11 may be implemented in other forms. Referring to fig. 14 and 15, and first to fig. 14, the main frame 1122 of the support member 112 may include at least one longitudinally extending ridge 11221 and a plurality of transverse reinforcing ribs 11222, the longitudinally extending ridge 11221 extending in the length direction of the mirror body 10, the transverse reinforcing ribs 11222 being curvedly connected to both sides of the main frame 1122. Preferably, the main frame 1122 includes two longitudinally extending ridges 11221 symmetrically distributed along the center of the mirror body 10, and a plurality of transverse reinforcing ribs 11222 are connected between the longitudinally extending ridges 11221 in an arc shape, in a top-bottom symmetry, or in a mirror symmetry. In one embodiment of the present invention, the transverse reinforcement ribs 11222 are in a serpentine configuration, such as a wave-like configuration. The backbone 1122 includes a series of transverse reinforcing ribs 11222 arranged substantially parallel to each other between two of the longitudinally extending ridges 11221. In one embodiment of the invention, the transverse reinforcing ribs 11222 are movably connected with the longitudinally extending ridges 11221 to facilitate bending of the mirror body 10.

It is worth mentioning that the arrangement of the longitudinally extending ridges 11221 and the transverse reinforcing ribs 11222 provides the mirror body 10 with a certain flexibility for facilitating bending, and on the other hand, provides the mirror body 10 with a better guidance for enabling direct access to the body without the aid of a sheath.

The density of the transverse reinforcing ribs 11222 may be arranged different in the first tube portion 11A, the closer to the working end 1001, the greater the density of the transverse reinforcing ribs 11222 may be arranged, so that the first tube portion 11A may be formed into different bends.

Referring next to fig. 15, the main frame 1122 of the support member 112 may include a plurality of condyles 11223, and adjacent ones of the condyles 11223 may be configured to be rotatably coupled. The condyle 11223 may be set shorter closer to the working end 1001 and shorter closer to the working end 1002 in the first tube part 11A to make the rear end portion of the first tube part 11A easier to bend relative to the front end portion of the first tube part 11A, so that the first tube part 11A may be formed into a large bend and a small bend.

It is to be understood that the softness and hardness of the front and rear portions of the pipe main body 111 do not necessarily mean that the hardness of any position of the first pipe portion 11A is weaker than that of any position of the second pipe portion 11B. In this embodiment, the hardness of each condyle 11223, whether it is in the first tubular segment 11A or the second tubular segment 11B, may be the same. In other words, the curvature of the first tube section 11A of the tube body 111 is larger than the curvature of the second tube section 11B.

It is understood that the main frame 1122 of the supporting member 112 may be disposed on the first pipe portion 11A or the second pipe portion 11B, and the disposition at the two positions may be the same or different. For example, the main frame 1122 of the support 112 is disposed at the first pipe portion 11A and the second pipe portion 11B, and the density is made greater depending on the portion of the main frame 1122 at the second pipe portion 11B, so that the second pipe portion 11B is less bendable than the first pipe portion 11A, so that the second pipe portion 11B has a higher hardness than the first pipe portion 11A. For example, the main frame 1122 of the supporting member 112 may be arranged at the same position of the first pipe portion 11A and the second pipe portion 11B, and the first pipe portion 11A and the second pipe portion 11B may obtain different hardness or flexibility by virtue of the different coating layers 1121 of the supporting member 112.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A self-irrigating drainage type ureteroscope, comprising:

an operation part; and

2. The self-irrigating ureteroscope according to claim 1, wherein the self-irrigating ureteroscope includes a tube body and a support member, wherein the support member covers at least a portion of an outer wall of the tube body, and the working channel, the drainage channel, and the water inlet channel are disposed in the tube body.

3. The self-draining ureteroscope according to claim 2, wherein the support comprises a main framework and a coating layer, wherein the main framework is supported on the outer wall of the tube body and the coating layer coats the main framework.

4. The self-irrigating ureteroscope according to claim 2 or 3, wherein the tube body comprises at least a working tube body, a discharging tube body and an inflow tube body, wherein the working tube body forms the working channel, the discharging tube body forms the discharging channel, the inflow tube body forms the inflow channel, and the working tube body, the discharging tube body and the inflow tube body are bound to the support.

5. The self-draining ureteroscope according to claim 4, wherein the working tube body, the drainage tube body, and the water inlet tube body are integrally formed.

6. The self-draining ureteroscope according to claim 4, wherein the working tube, the draining tube, the water inlet tube and the support are filled with soft materials therebetween, wherein the soft materials have hardness less than that of the support, the working tube, the draining tube and the water inlet tube to form a hard-soft-hard structure.

7. The self-irrigating ureteroscope according to claim 3, wherein the tube body comprises at least a working tube body, an exhaust tube body and an inlet tube body, wherein the working tube body forms the working channel, the exhaust tube body forms the exhaust channel, the inlet tube body forms the inlet channel, and the main frame simultaneously surrounds the working tube body, the exhaust tube body and the inlet tube body to bind the working tube body, the exhaust tube body and the inlet tube body together and to allow compression between the working tube body, the exhaust tube body and the inlet tube body.

8. The self-irrigating ureteroscope according to any one of claims 1 to 3, wherein the tube for the self-irrigating ureteroscope has a working end surface, wherein the discharge channel has a discharge port and a discharge outlet, the discharge outlet and the discharge inlet communicating with each other, wherein the working channel has a working inlet and a working outlet, the working inlet and the working outlet communicating with each other, and the working inlet and the discharge inlet are both located on the working end surface.

9. The self-draining ureteroscope according to claim 8, wherein the working end surface comprises a first portion working end surface, a connection surface, and a second portion working end surface, wherein the connection surface extends between the first portion working end surface and the second portion working end surface and the first portion working end surface protrudes from the second portion working end surface, the discharge inlet is located at the second portion working end surface, and the working inlet is located at the first portion working end surface.

10. A tube for an automatic drainage ureteroscope is suitable for functional components of a ureteroscope to pass through, and is characterized in that the tube for the automatic drainage ureteroscope is provided with at least one working channel, a drainage channel and a water inlet channel, wherein the functional components are suitable for being installed on the working channel, the drainage channel and the water inlet channel keep intervals, the drainage channel is used for draining water and gravels, and the water inlet channel is used for feeding water.