CN219126266U

CN219126266U - Disposable endoscope outer sleeve with flushing and sucking functions

Info

Publication number: CN219126266U
Application number: CN202320107470.2U
Authority: CN
Inventors: 罗兴鸿; 房陇
Original assignee: Changsha Xinzheng Medical Technology Co ltd
Current assignee: Changsha Xinzheng Medical Technology Co ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-06-06
Anticipated expiration: 2033-02-03

Abstract

The utility model belongs to the technical field of endoscope protection devices, and discloses a disposable endoscope outer sleeve with a flushing and sucking function, which comprises an endoscope outer sleeve body and a mounting sleeve, wherein the mounting sleeve is movably sleeved outside the endoscope outer sleeve body; the suction tube is arranged on the side surface of the endoscope protection sleeve, so that body fluids such as mucus or blood can be conveniently sucked in time, the suction tube can be prevented from covering the endoscope lens, the suction tube can also be used as a channel of other medical instruments or used for injecting physiological saline, and the mucus or blood covering the lens protection cap can be washed away, so that the endoscope can conveniently and clearly observe the internal condition of a patient.

Description

Disposable endoscope outer sleeve with flushing and sucking functions

Technical Field

The utility model relates to a disposable endoscope outer sleeve with a flushing and sucking function, and belongs to the technical field of endoscope protection devices.

Background

An endoscope is a medical instrument for examining whether or not a human internal organ is diseased, and is widely used for examining various human organs clinically, for example, an intestinal endoscope, a gastric endoscope, a uterine endoscope, an otorhinolaryngoscope, and the like. In the examination, the endoscope is required to be inserted into a human body, and the endoscope body is polluted after entering the human body, so that the endoscope body can be reused after being disinfected after each use, the conventional disinfection mode is mostly used for soaking more than 15 minutes in disinfection water, but in practice, because more patients need to use the endoscope, the endoscope is likely to be taken out for secondary use after one patient is used and is not soaked for more than 15 minutes, so that certain unreliability exists in the disinfection mode to generate cross infection, an endoscope outer sleeve (also called an endoscope protective sleeve) which can be sleeved on the surface of the endoscope appears to protect the endoscope, but the conventional endoscope outer sleeve is mostly of a single-tube structure, and can play a role of protecting the endoscope body from pollutants such as sewage, body fluid, blood and the like, but because of no suction device, the endoscope lens in the body of a patient is easy to be covered by the endoscope or the blood and the like to influence the light transmission rate, the accuracy of examination is influenced, and therefore the endoscope lens is required to be convenient to suck the mucus in the body of the patient and the blood in time is prevented from being covered by the endoscope lens or the endoscope lens, or the light transmission function of the endoscope has a light transmission effect.

Disclosure of Invention

The utility model aims to provide a disposable endoscope outer sleeve with a flushing and sucking function, which solves the problems that the existing endoscope outer sleeve is not provided with a suction device, mucous, blood and the like secreted by organs in a patient body are easy to cover an endoscope lens by mucous, blood and the like, so that light transmission is influenced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a disposable endoscope outer tube that takes towards inhale function, includes endoscope outer tube body and installation sleeve, installation sleeve's length is greater than the length of endoscope outer tube body to the activity cup joints the outside of endoscope outer tube body, endoscope outer tube body includes parallel arrangement and the endoscope protection sleeve and the suction tube that link into an organic whole, endoscope protection sleeve is elastic tube, endoscope protection sleeve's one end is equipped with the lens protection cap, the other end is equipped with round platform shape endoscope inserted hole, the suction tube is half hard tube, endoscope inserted hole side is equipped with the inclined tube, the inclined tube communicates with the suction tube, is not led to with the endoscope protection sleeve, the one end that the suction tube was kept away from to the inclined tube is equipped with the pagoda and connects and be connected with the suction control switch, the suction control switch is connected with the negative pressure suction tube through the pagoda and connects.

Preferably, the inner wall and the outer wall of the endoscope protection sleeve and the inner wall and the outer wall of the suction tube are respectively provided with a smooth coating, the lens protection cap is an elastic transparent film, and the endoscope insertion opening and the inclined tube are made of medical PVC.

Preferably, the suction tube is a crescent tube, the tube wall at one side of the suction tube close to the endoscope protection sleeve is combined with the side wall of the endoscope protection sleeve, and the thickness of the tube wall of the suction tube is larger than that of the tube wall of the endoscope protection sleeve.

Preferably, a metal supporting wire is embedded in the pipe wall of the suction pipe.

Preferably, the lower end of the suction tube is of a wedge-shaped structure.

Preferably, the inclined tube is kept away from the one end of inhaling the pipe and is equipped with first pagoda joint, attract control switch includes the casing, the lower surface of casing is equipped with the elastic sleeve who connects looks adaptation with first pagoda, the first through-hole that runs through the casing lower surface downwards is seted up to the casing upper surface, the mounting groove that intersects perpendicularly with first through-hole is seted up to the side of casing, the case is installed to the mounting groove internal rotation, be equipped with the second through-hole that radially runs through the case in the case, the one end of case extends to the casing outside and fixedly connected with knob, the casing upper surface is equipped with the second pagoda joint that is linked together with first through-hole, the second pagoda joint cup joints in the negative pressure is inhaled the pipe.

As another preferable mode, one end of the inclined tube, which is far away from the suction tube, is provided with a first luer connector, the first luer connector is connected with the lower end of the suction control switch, the upper surface of the suction control switch is provided with a second luer connector, and the second luer connector is connected with the negative pressure suction tube.

As another preferable mode, a first luer connector is arranged at one end, far away from the suction tube, of the inclined tube, and is connected with a three-way tube, a second luer connector and a third luer connector are respectively connected with two ports, far away from one end of the inclined tube, of the three-way tube, the second luer connector and the third luer connector are in the same specification, a plug cover is arranged on the second luer connector, the third luer connector is connected with a suction control switch, and a fourth luer connector is arranged at the top of the suction control switch and is connected with a negative pressure suction tube.

Advantageous effects

1. The disposable endoscope outer sleeve with the flushing and sucking functions is convenient to assemble and disassemble by arranging the mounting sleeve, so that hands of medical staff can be prevented from directly contacting the endoscope outer sleeve when the endoscope outer sleeve is mounted, the endoscope outer sleeve is prevented from being polluted, smooth coatings are arranged on the surface and the inner wall of the endoscope protective sleeve, the endoscope outer sleeve is convenient to assemble and disassemble, the endoscope protective sleeve is arranged to be an elastic hose and is suitable for endoscopes with different sizes, suction pipes are arranged on the side surfaces of the endoscope protective sleeve, so that body fluids such as mucus or blood and the like can be conveniently sucked in time, the suction pipes can be prevented from covering an endoscope lens, and can also be used as channels of other medical instruments, or used for injecting normal saline, flushing mucus or blood covering a lens protective cap, so that the endoscope can conveniently observe the internal condition of a patient more clearly, the examination accuracy is improved, and auxiliary medicines can also be conveniently injected, and friction force of the inner wall of the suction pipe is conveniently reduced by arranging the smooth coatings on the surface and the inner wall of the suction pipe;

2. according to the disposable endoscope outer sleeve with the flushing and sucking function, the metal supporting wire is arranged in the suction tube of the endoscope outer sleeve, so that the supporting force of the tube wall of the suction tube is conveniently improved, and negative pressure generated during suction is prevented from flattening the suction tube, and the suction efficiency is prevented from being influenced;

3. the disposable endoscope outer sleeve with the flushing and sucking function is convenient to control the on-off of the negative pressure suction passage through the suction control switch, is convenient to control suction, and meanwhile, the suction control switch is a detachable component, so that the suction tube of the endoscope outer sleeve is convenient to assemble or disassemble with the negative pressure suction tube;

4. the disposable endoscope outer sleeve with the flushing and sucking functions is convenient to quickly connect the suction control switch and the negative pressure suction tube by arranging the pagoda joint;

5. the disposable endoscope outer sleeve with the flushing and sucking functions is convenient to connect with a negative pressure suction tube or establish a working channel of endoscopic equipment by arranging the luer connector and the three-way tube to be matched.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic cross-sectional view of an endoscope overtube body according to the present utility model;

FIG. 5 is a schematic side sectional view of the suction control switch of the present utility model;

FIG. 6 is a schematic diagram of a second embodiment of the present utility model;

FIG. 7 is an exploded view of a second embodiment of the present utility model;

FIG. 8 is a schematic diagram of a third embodiment of the present utility model;

FIG. 9 is an exploded view of a third embodiment of the present utility model;

FIG. 10 is a schematic cross-sectional view of an endoscope outer sleeve body with a suction tube juxtaposed with an endoscope protective sleeve;

FIG. 11 is a schematic cross-sectional view of an endoscope outer sleeve body when the suction tube is wrapped around the endoscope protective sleeve;

FIG. 12 is a schematic cross-sectional view of the endoscope outer sleeve body with the suction tube embedded in the side wall of the endoscope protective sleeve;

fig. 13 is a schematic sectional view of the endoscope protection sleeve and the suction tube when they are disposed in parallel in the endoscope overtube body.

In the figure: 1. a mounting sleeve; 2. an endoscope protective sleeve; 3. suction; 4. a lens protection cap; 5. an endoscope insertion port; 6. a convex ring; 7. a chute; 8. a ring block; 9. a suction control switch; 10. a negative pressure suction tube; 11. a metal support wire; 12. a first pagoda joint; 13. a housing; 14. an elastic sleeve; 15. a first through hole; 16. a valve core; 17. a second through hole; 18. a knob; 19. a second pagoda joint; 20. a first luer fitting; 21. a second luer fitting; 22. a three-way pipe; 23. a third luer fitting; 24. a fourth luer fitting; 25. a screw cap; 26. a ring table.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1-5, the present utility model provides a technical solution: the disposable endoscope outer sleeve with the flushing and sucking functions comprises an endoscope outer sleeve body and a mounting sleeve 1, wherein the mounting sleeve 1 is movably sleeved outside the endoscope outer sleeve body, the length of the mounting sleeve 1 is larger than that of the endoscope outer sleeve body, the surface of the mounting sleeve 1 is a frosted anti-slip surface or is provided with anti-slip patterns, the mounting sleeve 1 is arranged to prevent hands of medical staff from directly contacting the endoscope outer sleeve when the endoscope outer sleeve is mounted, the endoscope outer sleeve is prevented from being polluted, the endoscope outer sleeve body comprises an endoscope protection sleeve 2 and a suction tube 3 which are arranged in parallel and connected into a whole, the suction tube 3 is arranged on the side surface of the endoscope protection sleeve 2, so that body fluids such as mucus or blood and the like can be conveniently sucked in time, the suction tube 3 can be prevented from covering an endoscope lens, and can also be used as a passage of other medical instruments, or a flushing channel for injecting physiological saline, is convenient for flushing mucus or blood covering a lens protective cap, is convenient for an endoscope to observe the internal condition of a patient more clearly, improves the accuracy rate of examination, can also be used for injecting auxiliary drugs, the endoscope protective sleeve 2 is an elastic hose, the endoscope protective sleeve 2 is made of silica gel or TPU thermoplastic polyurethane elastomer rubber, the endoscope protective sleeve 2 is set to be an elastic hose, the endoscope protective sleeve is suitable for endoscopes with different sizes, one end of the endoscope protective sleeve 2 is provided with the lens protective cap 4, the other end is provided with the truncated cone-shaped endoscope insertion opening 5, the inner wall of the endoscope insertion opening 5 is provided with a plurality of convex rings 6, the inner diameters of the convex rings 6 are sequentially enlarged from bottom to top, the endoscope protective sleeve 2 is convenient to be stably sleeved on the endoscope by the convex rings 6, the lens protective cap 4 is an elastic transparent film, in this embodiment, the lens protecting cap 4 is made of elastic transparent silica gel or transparent high-elasticity TPU, the suction tube 3 is a semi-hard tube, the metal supporting wire 11 is embedded in the tube wall of the suction tube 3, the metal supporting wire 11 is a spiral wire, a metal wire net or a metal ring, in this embodiment, the suction tube 3 is a PVC hose or a polyurethane hose with the net-shaped metal supporting wire 11 embedded in the tube wall, the metal supporting wire 11 is made of 304 or 306 stainless steel, by arranging the metal supporting wire 11, the supporting force of the tube wall of the suction tube 3 is conveniently improved, negative pressure generated during suction is avoided to flatten the suction tube 3, suction efficiency is influenced, both the inner wall and the outer wall of the endoscope protecting sleeve 2 and the suction tube 3 are provided with smooth coatings, the smooth coatings are teflon self-lubricating coatings or talcum powder lubricating coatings, the smooth coatings are arranged on the surface and the inner wall of the endoscope protecting sleeve 2, the sleeve is convenient for sleeving and dismantling, the surface and the inner wall of the suction tube 3 are provided with smooth coatings, the friction force of the inner wall of the suction tube 3 is convenient to reduce, the suction is convenient, the side surface of the endoscope insertion opening 5 is provided with an inclined tube 7, the materials of the endoscope insertion opening 5 and the inclined tube 7 are medical PVC, the outer wall of the joint of the endoscope insertion opening 5 and the inclined tube 7 is provided with more than two annular blocks 8, the joint of the endoscope insertion opening 5 and the inclined tube 7 is convenient to stabilize, the sleeve is convenient to hold and pinch, the lower surface of the annular block 8 at the lowest layer is lapped with the upper surface of the mounting sleeve 1, the outer diameter of the annular block 8 is larger than the inner diameter of the mounting sleeve 1, the surface of the annular block 8 is an anti-slip surface, the surface of the annular block 8 is provided with anti-slip patterns or rubber anti-slip pads, the inclined tube 7 is communicated with the suction tube 3 and is not communicated with the endoscope protective sleeve 2, one end of the inclined tube 7, which is far away from the suction tube 3, is provided with a pagoda joint and is connected with a suction control switch 9, the suction control switch 9 other end is connected with the negative pressure suction tube 10 through the pagoda joint, through setting up the pagoda joint, is convenient for quick connect suction control switch 9 and negative pressure suction tube 10, through suction control switch 9, is convenient for control negative pressure suction path's break-make, is convenient for control suction, and suction control switch 9 is detachable subassembly simultaneously, and the suction tube 3 of the endoscope outer tube of being convenient for is assembled or split with negative pressure suction tube 10.

The suction tube 3 is a crescent tube, the tube wall at one side of the suction tube 3 close to the endoscope protection sleeve 2 is combined with the side wall of the endoscope protection sleeve 2 into a whole, and the thickness of the tube wall of the suction tube 3 is larger than that of the endoscope protection sleeve 2.

The lower end of the suction tube 3 is a wedge-shaped structure which inclines towards the direction of the lens protective cap 4.

The one end that the inclined tube 7 kept away from the suction tube 3 is equipped with first pagoda joint 12, suction control switch 9 includes casing 13, the lower surface of casing 13 is equipped with the elastic sleeve 14 with first pagoda joint 12 looks adaptation, the first through-hole 15 that runs through casing 13 lower surface downwards is seted up to casing 13 upper surface, the mounting groove that intersects perpendicularly with first through-hole 15 is seted up to the side of casing 13, the mounting groove rotation is installed with case 16, case 16 outer wall and the laminating of mounting groove inner wall slip, the mounting groove inner wall is equipped with the annular, be equipped with O type sealing washer in the annular, be equipped with the second through-hole 17 that radially runs through case 16 in the case 16, the one end of case 16 extends to casing 13 outside and fixedly connected with knob 18, knob 18 is cross knob, the knob 18 surface is equipped with the indication mark, the casing 13 upper surface is equipped with the second pagoda joint 19 that is linked together with first through-hole 15, second pagoda joint 19 cup joints in negative pressure suction tube 10.

The port of the endoscope inserting port 5 is provided with a ring table 26, and the ring table 26 is provided with a binding belt or a binding belt.

The disposable endoscope outer sleeve with the flushing and sucking functions is disposable, and cross infection is avoided.

The working principle of the utility model is that when in use, the mounting sleeve 1 is sleeved outside the endoscope outer sleeve body, the top end of the mounting sleeve 1 is overlapped with the lower surface of the ring block 8 of the endoscope outer sleeve body, a medical staff holds the mounting sleeve 1, then the endoscope head end passes through the ring table 26 and is inserted into the endoscope protection sleeve 2 through the endoscope inserting opening 5 until the endoscope head end reaches the lens protection cap 4, the endoscope body is protected by the endoscope protection sleeve 2, the endoscope lens is protected by the lens protection cap 4, the endoscope inserting opening 5 is sleeved on the surface of one end of the endoscope handle close to the lens, the endoscope inserting opening 5 is limited on the endoscope handle through the convex ring 6, then the elastic sleeve 14 which attracts the lower surface of the control switch 9 is sleeved on the first pagoda joint 12 at the upper end of the tube 7, the second pagoda joint 19 on the upper surface of the suction control switch 9 is sleeved with the negative pressure suction tube 10, the negative pressure suction tube 10 can be connected with the inclined tube 7 through the suction control switch 9 and then connected with the suction tube 3, at the moment, the suction control switch 9 controls the negative pressure suction tube 10 to be disconnected with a passage formed by the suction tube 3, then the mounting sleeve 1 is removed, the endoscope and the outer sleeve of the endoscope can be used for entering the human body to work, when the suction is needed, the cross knob 18 is rotated to enable the valve core 16 to rotate 90 degrees, the second through hole 17 in the valve core 16 is communicated with the first through hole 15 in the suction control switch 9, the suction tube 3 is communicated with the negative pressure suction tube 10, suction work can be carried out, when the suction work is completed or suction is suspended, the cross knob 18 is rotated to enable the valve core 16 to continue rotating 90 degrees or reversely rotating 90 degrees, and the second through hole 17 is not communicated with the first through hole 15, thereby making the suction tube 3 and the negative pressure suction tube 10 not communicated; the disposable endoscope outer sleeve with the flushing and sucking functions is convenient for sucking body fluid such as mucus or blood in time by arranging the suction tube on the side surface of the endoscope protective sleeve, so that the suction tube can be used as a channel of other medical instruments or a flushing channel for injecting physiological saline, the mucus or blood covering a lens protective cap can be conveniently flushed out, the endoscope can conveniently and clearly observe the condition in a patient, the examination accuracy is improved, and the problems that the existing endoscope outer sleeve is not provided with a suction device, the organs in the patient have secreted mucus, blood and the like, and the endoscope lens is easy to be covered by the mucus or the blood and the like to influence light transmission are solved.

Embodiment two:

as shown in fig. 6-7, a disposable endoscope outer sleeve with a flushing and sucking function comprises an endoscope outer sleeve body and a mounting sleeve 1, wherein the mounting sleeve 1 is movably sleeved outside the endoscope outer sleeve body, the endoscope outer sleeve body comprises an endoscope protection sleeve 2 and a suction tube 3 which are arranged in parallel and connected into a whole, one end of the endoscope protection sleeve 2 is provided with a lens protection cap 4, the other end of the endoscope protection sleeve is provided with a truncated cone-shaped endoscope insertion opening 5, the side surface of the endoscope insertion opening 5 is provided with an inclined tube 7, one end of the inclined tube 7, which is far away from the suction tube 3, is provided with a first luer connector 20, the first luer connector 20 is connected with the lower end of the suction control switch 9, the upper surface of the suction control switch 9 is provided with a second luer connector 21 which is communicated with a first through hole 15, the second luer connector 21 is connected with a negative pressure suction tube 10, the suction control switch 9 and the negative pressure suction tube 10 are conveniently and quickly connected by arranging a pagoda connector, and the suction channel or the operation instrument working channel is conveniently and quickly established.

Embodiment III:

as shown in fig. 8-9, a disposable endoscope outer sleeve with a flushing and sucking function comprises an endoscope outer sleeve body and a mounting sleeve 1, wherein the mounting sleeve 1 is movably sleeved outside the endoscope outer sleeve body, the endoscope outer sleeve body comprises an endoscope protection sleeve 2 and a suction tube 3 which are arranged in parallel and connected into a whole, one end of the endoscope protection sleeve 2 is provided with a lens protection cap 4, the other end of the endoscope protection sleeve is provided with a truncated cone-shaped endoscope insertion opening 5, the side surface of the endoscope insertion opening 5 is provided with an inclined tube 7, one end of the inclined tube 7, which is far away from the suction tube 3, is provided with a first luer connector 20 and is connected with a three-way tube 22, two ports, which are far away from one end of the inclined tube 7, of the three-way tube 22 are respectively connected with a third luer connector 23 and a fourth luer connector 24, the second luer connector 21 and the third luer connector 23 are in the same specification, a plug cover 25 is arranged on the fourth luer connector 24, the third luer connector 23 is connected with a suction control switch 9, the top of the suction control switch 9 is provided with the second luer connector 21 and is connected with a negative pressure suction tube 10, the cooperation of the luer connector and the three-way tube is convenient to connect with the negative pressure suction tube, or a working channel is established, and the working channel is the same as that of an embodiment.

Alternatively, as shown in fig. 10, the suction tube 3 is a circular tube, and the suction tube 3 is juxtaposed with the endoscope protection sleeve 2.

Alternatively, as shown in fig. 11, the suction tube 3 is a circular tube, the suction tube 3 wraps the outside of the endoscope protection sleeve 2, and forms a crescent working channel, and the wall of one side of the endoscope protection sleeve 2, which is close to the suction tube 3, is combined with the side wall of the suction tube 3.

Alternatively, as shown in fig. 12, the suction tube 3 is a circular tube, and the suction tube 3 is inlaid on the side wall of the endoscope protection sleeve 2.

Alternatively, as shown in fig. 13, the endoscope outer sheath body is a circular tube, the endoscope protection sheath 2 and the suction tube 3 are arranged in parallel in the endoscope protective sheath body, and the cross section of the suction tube 3 is elliptical, olive-shaped or spindle-shaped.

Alternatively, the first luer fitting 20, the second luer fitting 21, the third luer fitting 23, and the fourth luer fitting 24 may replace threaded fittings or snap fittings.

Claims

1. The utility model provides a disposable area dashes and inhales endoscope outer tube of function, includes endoscope outer tube body and installation sleeve (1), its characterized in that: the endoscope outer sleeve comprises an endoscope outer sleeve body, wherein an installation sleeve (1) is movably sleeved outside the endoscope outer sleeve body, the length of the installation sleeve (1) is larger than that of the endoscope outer sleeve body, the endoscope outer sleeve body comprises an endoscope protection sleeve (2) and an absorption tube (3) which are arranged in parallel and connected into a whole, the endoscope protection sleeve (2) is an elastic hose, one end of the endoscope protection sleeve (2) is provided with a lens protection cap (4) and the other end of the endoscope protection sleeve is provided with a circular truncated cone-shaped endoscope inserting opening (5), the absorption tube (3) is a semi-hard tube, an inclined tube (7) is arranged on the side face of the endoscope inserting opening (5), the inclined tube (7) is communicated with the absorption tube (3) and is not communicated with the endoscope protection sleeve (2), one end of the inclined tube (7) away from the absorption tube (3) is provided with a pagoda joint and is connected with an absorption control switch (9), and the other end of the absorption control switch (9) is connected with a negative pressure pagoda joint.

2. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 1, wherein: the inner wall and the outer wall of the endoscope protection sleeve (2) and the suction tube (3) are respectively provided with a smooth coating, and the lens protection cap (4) is an elastic transparent film.

3. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 1, wherein: the suction tube (3) is a crescent tube, the tube wall at one side of the suction tube (3) close to the endoscope protection sleeve (2) and the side wall of the endoscope protection sleeve (2) are combined into a whole, and the thickness of the tube wall of the suction tube (3) is larger than that of the tube wall of the endoscope protection sleeve (2).

4. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 1, wherein: the metal supporting wires (11) are embedded in the pipe wall of the suction pipe (3).

5. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 1, wherein: the lower end of the suction tube (3) is of a wedge-shaped structure.

6. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 1, wherein: the utility model provides a suction control switch, including casing (13), suction control switch (9) is equipped with first pagoda joint (12) in the one end that suction pipe (3) was kept away from to inclined tube (7), the lower surface of casing (13) is equipped with elastic sleeve (14) with first pagoda joint (12) looks adaptation, first through-hole (15) that run through casing (13) lower surface downwards are seted up to casing (13) upper surface, the mounting groove that intersects perpendicularly with first through-hole (15) has been seted up to the side of casing (13), case (16) are installed in the mounting groove internal rotation, be equipped with second through-hole (17) that radially runs through case (16) in case (16), the one end of case (16) extends to casing (13) outside and fixedly connected with knob (18), second pagoda joint (19) that casing (13) upper surface are equipped with and are linked together in negative pressure suction pipe (10).

7. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 6, wherein: the knob (18) is a cross knob, and an indication mark is arranged on the surface of the knob (18).

8. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 1, wherein: one end of the inclined tube (7) far away from the suction tube (3) is provided with a first luer connector (20), the first luer connector (20) is connected with the lower end of the suction control switch (9), the upper surface of the suction control switch (9) is provided with a second luer connector (21), and the second luer connector (21) is connected with the negative pressure suction tube (10).

9. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 8, wherein: one end that suction tube (3) was kept away from to inclined tube (7) is equipped with first luer (20) to be connected with three-way pipe (22), two ports that inclined tube (7) one end were kept away from to three-way pipe (22) are connected with third luer (23) and fourth luer (24) respectively, second luer (21) and third luer (23) are with the specification, and are equipped with on fourth luer (24) spiral cover (25), third luer (23) are connected with suction control switch (9), suction control switch (9) top is equipped with second luer (21) and is connected with negative pressure suction tube (10).

10. The disposable, irrigation and aspiration functional endoscope outer sheath of claim 1, wherein: the port of the endoscope inserting port (5) is provided with a ring table (26), and the ring table (26) is provided with a binding belt or a binding belt.