CN211561253U

CN211561253U - External hanging type rinsing and sucking pipe for endoscope and endoscope

Info

Publication number: CN211561253U
Application number: CN201921978675.8U
Authority: CN
Inventors: 费明; 陈锦国
Original assignee: Shanghai Cmd Medical Device Co ltd
Current assignee: Shanghai Cmd Medical Device Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-09-25
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a chamber mirror is with outer hanging suction tube and chamber mirror, the suction tube subassembly in this outer hanging suction tube passes through the pedestal connection of detachable construction and chamber mirror front end to can follow the length direction distribution of chamber mirror front end insertion portion in the chamber mirror front end insertion portion outside. The utility model provides a scheme abandons the inertial design thinking that current function improvement scheme need adopt fixed knot structure in order to guarantee the product reliability on the chamber mirror front end, and the reverse design scheme of adoption of innovation forms the formula of can abandoning and hangs outward and go up the suction pipe scheme on the chamber mirror to the realization is changing or improving and not influencing under the condition of the original function or the performance of chamber mirror itself to the chamber mirror, makes the chamber mirror possess the suction function simultaneously, improves the convenience of laparoscopic surgery operation like this greatly.

Description

External hanging type rinsing and sucking pipe for endoscope and endoscope

Technical Field

The utility model relates to a medical instrument, concretely relates to chamber mirror instrument technique.

Background

The endoscope can enter the human body through a natural pore passage of the human body or a small incision made by an operation, so that the minimally invasive operation by utilizing the endoscope has the characteristics of small wound of a patient, low operation risk, quick postoperative recovery, small influence on the appearance of a wound surface and the like, and is widely paid attention to and developed in the field of various surgical operations in recent years. For example, otoendoscopic surgery has made an important progress in various indications such as cholesteatoma and otitis media, and is widely used.

As is known, the great restriction of the otoendoscopic surgery is that the ear canal is generally only 4 to 5 centimeters in diameter, the operation space is very limited, the operation of two hands of a doctor is very crowded, if an instrument is required to be used in combination with an endoscope for performing operations such as cutting, stripping and grinding and the like and different operations such as blood sucking, wound flushing, liquid tissue sucking and the like, the doctor needs to change various operation instruments back and forth, and the operation is completed by one hand, so that the operation is very inconvenient. Or two doctors are needed to cooperate with each other, which not only increases the cost, but also has the problem of inconvenient operation.

Therefore, how to solve the problems existing in the existing endoscope in the operation process is a problem which needs to be solved urgently in the field.

The Chinese patent application with publication number CN109349989A discloses a multifunctional ear hard endoscope, which mainly changes the structural design of the endoscope, has the function of adjusting brightness in addition to the endoscope, is convenient for adjusting the brightness by one hand, also increases the design of a defogging tube, and solves the problem of fogging of the mirror surface caused by the temperature difference between the endoscope and the inside of the human body. The light-adjusting switch, the defogging tube and the endoscope are of an integral structure, so that the complexity of a product is increased, the production cost is also increased, and the use of the endoscope is also limited due to the change of the structure and the appearance of the endoscope. The defogging pipe diameter is tiny, and the interface is complicated, and postoperative cleaning and disinfection is difficult, increases the use risk.

In this proposal, a negative pressure suction needle is designed for sucking a contaminant such as blood or the like during an operation, and although the suction needle is hung on an endoscope, the suction needle cannot be operated by a hand holding the endoscope.

Another common configuration is to integrate the flushing and sucking channel into the endoscope insertion part, because the addition of the flushing and sucking tube and the external holding round tube shape will make the diameter of the whole endoscope front end thicker, which will limit the use of the endoscope, for example, when used in the ear canal, due to the limitation of the ear canal space, other instruments will not be used together, which will make the ear endoscope operation impossible.

SUMMERY OF THE UTILITY MODEL

The improved scheme for improving the operation convenience of the existing endoscope (such as an ear endoscope and the like) has the problems of complex structure, influence on the basic performance of the endoscope and no great benefit to the actual problems of the operation. The field needs a design that simple structure, convenient to use and can not influence chamber mirror basic performance for improve the simple operation nature.

Therefore, an object of the utility model is to provide an outer hanging towards straw for chamber mirror, its whole simple structure can improve functional and the convenience of chamber mirror operation greatly under the condition that does not influence chamber mirror basic structure and performance. On this basis, the utility model discloses still further design this outer hanging towards straw be the telescopic form, and it can realize one-man operation chamber mirror and based on other auxiliary operation functions of towards straw, helps improving operation efficiency.

In order to achieve the above object, the utility model provides an outer hanging towards straw for chamber mirror, towards straw subassembly in the outer hanging towards straw passes through detachable construction and the pedestal connection of chamber mirror front end to can follow the length direction distribution of chamber mirror front end insertion portion in the chamber mirror front end insertion portion outside.

Further, the externally hung type washing and suction pipe comprises:

the connecting base is detachably connected with the base at the front end of the endoscope;

the sleeve is arranged on the connecting base and is integrally sleeved on the inserting part at the front end of the endoscope when the connecting base is detachably connected with the front end base of the endoscope;

the flushing and sucking pipe assembly is arranged on the outer wall of the sleeve and distributed along the length direction of the sleeve; the flushing and sucking pipe assembly is communicated with a flushing source and/or an adsorption power source.

Furthermore, the externally-hung type flushing pipe also comprises a control valve assembly, and the control valve assembly is connected with the flushing pipe assembly and is externally connected with a flushing source and/or an adsorption power source.

Further, the flushing and sucking pipe assembly is fixedly arranged on the outer wall of the sleeve.

Further, the flush tube assembly and the cannula are movable along an outer wall of the endoscope insertion portion.

Further, the flushing and sucking pipe assembly comprises at least one pipe body.

Further, a pipe body in the flushing and sucking pipe assembly is connected with the control valve assembly through a connecting joint.

Further, the connecting joint is a luer joint or a pagoda joint.

Further, an outlet on the pipe body in the flushing and sucking pipe assembly is arranged on the pipe wall or the end part of the pipe body.

Furthermore, the outlet is provided with a guide inclined plane, and the guide inclined plane and the axial direction of the pipe body form an included angle of 10-30 degrees.

In order to achieve the above object, the utility model provides an endoscope with outer hanging towards straw, including chamber mirror body and foretell outer hanging towards straw, outer hanging towards straw establishes on chamber mirror body through detachable connection base cover above that.

The utility model provides a scheme is abandoned current chamber mirror front end (especially the portion of inserting) and is gone up the inertial design thinking that the function improvement scheme need adopt fixed knot to construct in order to guarantee product reliability, and the reverse design scheme of adoption of innovation forms and can abandon formula (can tear the formula) and externally hang straw scheme on the chamber mirror to the realization is changing or improving and not influencing under the condition of chamber mirror original function or performance (if inspect the function) to the chamber mirror, makes the chamber mirror possess the washing and suction function simultaneously, improves the convenience of chamber mirror operation so greatly.

Moreover, the scheme adopts a disposable (detachable) structure, and does not need to change or design the cavity mirror, so that the complexity of the structure of the cavity mirror is not increased; furthermore, the whole flushing and sucking pipe is arranged on the front end inserting part of the endoscope in an externally hanging mode, the thickness of the front end inserting part of the endoscope is not greatly influenced, the use of the front end inserting part of the endoscope is not influenced completely, and the existing basic function or performance of the endoscope is not influenced; based on the disposable (can detach formula) structure, do not influence maintenance or the disinfection operation of chamber mirror itself completely, the practicality is strong.

In addition, but the outer hanging washing and suction pipe design of formula (can tear open) that this scheme adopted cooperates chamber mirror itself for operator's accessible both hands collaborative operation realizes the function and the washing and suction function of chamber mirror itself simultaneously, avoids making a round trip to change the problem of various operating instruments, improves the convenience when chamber mirror uses greatly.

Drawings

The invention is further described with reference to the following drawings and detailed description.

Fig. 1 is a schematic view of an in-ear mirror structure according to example 1 of the present invention;

FIG. 2 is a schematic view of the structure of an externally-hung suction pipe with a fixed structure in example 1 of the present invention;

FIG. 3 is a schematic view of the outlet of the body of the washing pipe of the externally-hung type washing pipe in example 1 of the present invention;

fig. 4 is a schematic structural diagram of an externally-hung type suction pipe with a telescopic structure in example 2 of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

An endoscope (such as an ear endoscope) is used as a precise medical instrument, and strict requirements are put on the size structure of a front end insertion part of the endoscope based on the special use environment of the endoscope, namely the front end insertion part of the endoscope is required to be small enough in size and reliable enough in structure.

Under this condition, for making do not possess the chamber mirror of washing and suction function originally, have the washing and suction function that can carry out the used in coordination with chamber mirror itself, this scheme abandons the inherent structure of direct improvement chamber mirror to adopt the inertial design thinking of fixed knot structure in order to guarantee chamber mirror reliability, the innovative reverse design scheme of adoption forms disposable (can the formula of dismantling) and joins externally in the washing and suction pipe scheme of chamber mirror, thereby realize not changing or improving the chamber mirror and do not influence under the condition of the original function or the performance (like viewing the function) of chamber mirror itself, make the chamber mirror possess the washing and suction function simultaneously, improve the convenience of chamber mirror operation so greatly.

The following describes the implementation of the present invention with an ear endoscope as an example.

Example 1

Referring to fig. 1, there is shown a schematic structural view of an in-ear endoscope 10 according to the present example. As can be seen, the ear endoscope 10 mainly comprises a front base 11 and a front insertion portion 12 disposed on the front base 11.

The thus configured ear endoscope 10 does not have a washing and sucking function, and when it is used, it needs to be matched with other instruments to perform operations such as cutting, stripping, grinding, etc., and operations such as blood sucking, wound flushing, liquid tissue sucking, etc., because an operator (e.g., a doctor) only has a single hand-held instrument after holding the endoscope with one hand, the operating space is very limited, and the operator must change various operating instruments back and forth.

For this ear endoscope 10, the present example shows a solution of an externally-hung type irrigation tube 20 which is externally hung outside the insertion portion 12 of the ear endoscope 10 in a disposable (i.e., detachable) manner and can be distributed along the length direction of the insertion portion at the front end of the endoscope. Therefore, the ear endoscope 10 has the flushing and sucking functions at the same time, and the internal structure of the ear endoscope 10 does not need to be adjusted or changed; due to the disposable (detachable) structure mode, the use and the later-period disinfection maintenance are convenient.

Referring to FIG. 2, an exemplary embodiment of the externally hung suction tube 20 of the present embodiment is shown. As can be seen, the externally hung suction pipe 20 of the present embodiment mainly comprises a connection base 21, a sleeve 22, a suction pipe assembly 23, and a connection pipe and control valve assembly (not shown).

The connection base 21 serves as a base member of the entire externally-mounted suction tube 20 for connecting other constituent members, and serves as an external connection member of the externally-mounted suction tube 20 for detachable connection with the front end base 11 of the ear endoscope 10 for subsequent disposable use.

The detachable connection structure between the connection base 21 and the front base 11 of the ear endoscope 10 can be determined according to practical requirements, and is not limited herein.

For example, the connection base 21 is provided with a connection portion (such as a plug hole, etc.) that is matched with the front base 11 of the ear endoscope 10, and through the connection portion, the connection base 21 can be sleeved on the front base 11 of the ear endoscope 10 and forms a reliable detachable connection structure with the front base 11 of the ear endoscope 10.

In addition, the specific configuration and structure of the connection base 21 may be determined according to actual requirements, and are not limited herein. It should be noted that the detachable connection scheme between the connection base 21 and the front base 11 of the ear endoscope 10 is not limited thereto, and other possible schemes can be adopted according to the needs.

The sleeve 22 of the externally-hung suction tube 20 is arranged on the connecting base 21 and can be sleeved on the insertion part 12 of the endoscope to be used as a mounting and supporting component of the externally-hung suction tube component 23.

The sleeve 22 is tubular and has an inner diameter corresponding to the outer diameter of the insertion portion 12 of the otoscope, so that the sleeve can be sleeved on the insertion portion 12 of the otoscope, thereby not greatly affecting the outer diameter of the insertion portion 12 of the otoscope and not affecting the operation and function of the insertion portion 12 of the otoscope.

For example, considering that the sleeve 22 is sleeved on the insertion portion 12 of the ear endoscope and needs to move synchronously with the insertion portion 12 of the ear endoscope, a stainless steel tube with an inner diameter matched with the outer diameter of the insertion portion 12 of the ear endoscope is selected to form the sleeve, so that the strength and the safety and reliability can be ensured.

The sleeve 22 with such a structure is arranged on the connecting base 21 and can be just sleeved on the insertion part 12 of the ear endoscope when the connecting base 21 is detachably connected with the front end base 11 on the ear endoscope 10.

The specific length of the sleeve 22 is not limited as long as it is practically compatible with the length of the insertion portion 12 of the endoscope. The construction of the sleeve 22 is not limited to the steel pipe described above, and other possible materials may be used.

The washing and sucking pipe component 23 in the externally hung washing and sucking pipe 20 is integrally arranged on the outer wall of the sleeve 22 and distributed along the length direction of the sleeve, thereby realizing the externally hung washing and sucking pipe component outside the front end inserting part 12 of the endoscope. The flushing and sucking pipe assembly 23 distributed outside the front end insertion part 12 of the endoscope is externally connected with a corresponding power source, so that flushing and sucking actions can be performed, and then the flushing and sucking functions can be synchronously realized by matching with the front end insertion part 12 of the endoscope.

By way of example, the present flush tube assembly 23 includes a flush tube 23-1 and a connector 23-2. The suction pipes 23-1 are integrally and fixedly arranged on the outer wall of the sleeve 22 and distributed along the length direction of the sleeve 22. The rear end of the flushing and sucking pipe 23-1 is connected with a connecting joint 23-2 so as to be communicated with different power sources; the front end of the flushing and sucking pipe 23-1 is provided with a corresponding outlet for flushing and sucking.

The structure of the suction pipe 23-1 can be determined according to the actual requirement, for example, it is made of hard pipe with small enough inner diameter, for example, thin steel pipe with small inner diameter, so as to ensure both small outer diameter and reliability of the whole external hanging structure.

In order to facilitate the connection and conduction between the suction pipe 23-1 and the connection joint 23-2, the rear end of the suction pipe 23-1 extends into the connection base 21, and the connection joint 23-2 is inserted on the connection base 21 and is in connection with the rear end of the suction pipe 23-1 extending into the connection base 21. The specific connection conducting structure can be determined according to actual requirements.

The specific configuration of the connection joint 23-2 can be determined according to actual requirements, and is not limited herein. By way of example, the connector 23-2 may be a luer connector or a pagoda connector, depending on the type of connection of the catheter.

Since the suction pipe 23-1 is required to be synchronously matched with the operation of the insertion part 12 of the ear endoscope when the suction operation is realized, in order to avoid the influence of the suction pipe 23-1 on the operation of the insertion part 12 of the ear endoscope when the suction operation is performed, the opening 23-3 at the front end of the suction pipe 23-1 is arranged on the pipe wall at the front end of the suction pipe 23-1.

Referring to fig. 3, the end of the front end of the suction pipe 23-1 in this embodiment is a closed structure, and a corresponding opening 23-3 is formed on the outer side wall of the front end wall of the suction pipe 23-1, i.e., the opening direction of the opening 23-3 is opposite to the sleeve 22, and the opening 23-3 is communicated with the inner cavity of the suction pipe 23-1.

Furthermore, the opening 23-3 is an oblique opening as a whole, and has a guiding inclined plane 23-4 in the water outlet direction, the guiding inclined plane 23-4 is opposite to the inner cavity of the suction pipe 23-1 with a certain inclination angle, so as to guide and adjust the water flow direction flowing out from the opening 23-3, and avoid the water flow flowing out from affecting the insertion part 12 of the ear endoscope. Preferably, the guide slope 23-4 on the opening 23-3 forms an included angle theta of 10 degrees to 30 degrees with the axial direction of the suction pipe 23-1. Through the guide inclined plane 23-4 arranged in this way, the water flow coming out of the opening 23-3 is ejected out at a certain inclination angle with the suction pipe 23-1, so that when the ear endoscope insertion part 12 is used in cooperation, the water flow ejected out of the opening 23-3 cannot rush to the ear endoscope insertion part 12, visual interference is avoided, but the flushing effect can be seen through the ear endoscope insertion part 12 within the observable range of the ear endoscope insertion part 12.

If the inclined angle of the guide inclined plane 23-4 is too small, water from the opening 23-3 can directly dip into the end part of the insertion part 12 of the ear endoscope, so that visual interference is caused to the insertion part 12 of the ear endoscope; if the angle of inclination of the guide slope 23-4 is too large, the flow of water out of the opening 23-3 will gradually be vertically inexpensive and will be out of view of the insertion portion 12 of the in-ear mirror.

Alternatively, the present flush tube assembly 23 may include a plurality of flush tubes 23-1 and a plurality of attachment fittings 23-2. The plurality of suction pipes 23-1 are respectively and integrally fixed on the outer wall of the sleeve 22 and distributed along the length direction of the sleeve 22. The arrangement scheme of each suction tube 23-1 is as described above, and will not be described herein, and the plurality of suction tubes 23-1 are also arranged in an external hanging manner with respect to the insertion portion 12 of the endoscope.

The number of the flushing pipes 23-1 is determined according to actual requirements, and for example, two flushing pipes 23-1 are adopted and respectively connected to different power sources to respectively realize flushing and sucking functions when two flushing and sucking functions need to be realized in the present embodiment.

The control valve assembly in the externally hung type flushing and sucking pipe 20 is used for being connected with a connecting joint 23-2 in a flushing and sucking pipe assembly 23, is externally connected with a required power source and controls the on-off state.

The specific structure of the control valve assembly can be determined according to actual requirements, and is not limited herein.

For example, in the embodiment of the present invention, a single flushing pipe 23-1 is used to perform the flushing and sucking functions, the control valve assembly may be a corresponding three-way valve assembly, the output end of the three-way valve assembly is connected to the flushing pipe 23-1, and the input end of the three-way valve assembly is connected to the flushing source and/or the sucking power source. Therefore, the connection and disconnection of the flushing source or the suction power source can be effectively controlled through the three-way valve assembly, and then the flushing and suction functions are realized at the flushing pipe 23-1. To facilitate one-handed operation, the three-way valve assembly herein may employ a one-handed control three-way valve arrangement.

In addition, aiming at the arrangement scheme that two flushing pipes 23-1 are adopted in the embodiment and are respectively used for flushing and adsorbing, the control valve assembly can be realized by adopting two one-way control valves, the output end of the first one-way control valve is communicated with the first flushing pipe 23-1, and the input end of the first one-way control valve is communicated with a flushing source; the output end of the second one-way control valve is communicated with a second flushing suction pipe 23-1, and the input end of the second one-way control valve is communicated with a suction power source; the on-off of the flushing source and the suction power source are respectively controlled by the two one-way control valves, and then the two flushing and suction pipes 23-1 are controlled to respectively realize the flushing and suction functions.

The flushing and sucking pipe 20 with the disposable plug-in structure formed by the scheme is correspondingly attached to a sleeve pipe with the inner diameter equivalent to the outer diameter of the insertion part 12 at the front end of the ear endoscope 10; when the ear endoscope 10 is used in cooperation, the front end insertion part 12 of the ear endoscope 10 penetrates through the sleeve, the flushing suction tube is detachably fixed with the clamping seat (namely the front end base 11) on the ear endoscope 10 through the connecting base, and the flushing suction tube is hung outside the front end insertion part 12 of the ear endoscope 10 along the length direction of the front end insertion part 12 of the ear endoscope 10.

Furthermore, the rear end of the flushing pipe is connected with a connecting joint (such as a luer structure or a pagoda joint), the connecting joint is connected with a control valve component through a conduit, and the control valve component is respectively connected with a positive pressure physiological saline (flushing conduit) and a negative pressure air suction pump (air suction conduit). When in use, the flushing and sucking pipe respectively realizes the flushing function or the sucking function through the adjustment of the control valve assembly.

When the disposable washing and suction tube 20 with the external hanging structure is used in cooperation with an ear endoscope, an operator (such as a doctor) can complete the operation of a plurality of functions simultaneously through two hands during the ear endoscope operation, and the washing, suction and the like can be simultaneously performed besides the normal operation of the endoscope operation.

For example, when performing operations such as cutting, stripping, grinding and the like in the process of an otoscope operation, when a wound needs to be washed, other instruments do not need to be inserted at the moment, and the assistance of other people is also not needed, an operator (such as a doctor) controls a corresponding control valve component by one hand to connect positive pressure physiological saline solution while performing the operation, so that the positive pressure physiological saline solution washes the wound through the washing and sucking tube 20 externally hung on the outer side of the insertion part of the otoscope, and the instruments do not need to be repeatedly plugged and pulled out; if blood or liquid tissue needs to be sucked in the operation process, an operator (such as a doctor) only needs to control the corresponding control valve component by one hand to switch on the negative pressure air suction pump in the operation process, so that the positive pressure physiological saline generates negative pressure adsorption force in the flushing and sucking pipe 20 which is externally hung on the outer side of the insertion part of the ear endoscope, the adsorption operation is carried out, and the instruments do not need to be repeatedly plugged and pulled out.

So, to the ear endoscope operation because of the restriction of duct space, will improve the convenience of ear endoscope operation greatly, improve the efficiency and the security of ear endoscope operation by a wide margin.

Similarly, the disposable external-hanging structure flushing and sucking tube 20 is used on other endoscopes, and can achieve the effects of improving the operation convenience, reducing wounds and greatly improving the efficiency and safety of endoscopic surgery.

In addition, the whole flushing and sucking tube 20 with the disposable external hanging structure is a detachable instrument attached to the endoscope, and the disposable flushing and sucking tube can be used as a disposable product in the practical application process, so that the problem of difficult disinfection is effectively solved.

Example 2

The embodiment provides the flushing and sucking pipe 20 with a disposable external hanging structure on the basis of the scheme of the embodiment 1, and the flushing and sucking pipe in the scheme of the embodiment can be operated in a telescopic mode unlike the fixed arrangement of the flushing and sucking pipe in the embodiment 1, so that the performance of the flushing and sucking pipe can be further improved.

Referring to fig. 4, there is shown an example of the composition of the externally hung suction pipe with a telescopic structure given in this example.

As shown in the figure, the externally-hung type suction pipe 20 mainly comprises a connection base 21, a sleeve 22, a suction pipe assembly 23, a coupling member 24, a driving member 25, and a connection pipe and control valve assembly (not shown).

The basic structure and function of the connection base 21 in this embodiment are the same as those of embodiment 1, and serve as a base member of the entire externally-hung suction tube 20 for connecting other components, and as an external connecting member of the externally-hung suction tube 20 for detachable connection with the front end base 11 of the ear endoscope 10, so as to realize subsequent disposable type. The detachable connection structure between the connection base 21 and the front base 11 of the ear endoscope 10 can be determined according to practical requirements, and is not limited herein.

The basic structure and function of the sleeve 22 in this example are the same as those in example 1, except that the length is shorter than the front end insertion portion of an endoscope (e.g., an ear endoscope), and detailed description thereof is omitted.

The basic composition and function of the flushing and sucking pipe assembly 23 in this example are the same as those in example 1, and the flushing and sucking pipe assembly 23 is formed by matching the corresponding flushing and sucking pipe 23-1 and the connecting joint 23-2, and the detailed structure is not described herein.

The basic composition and function of the control valve assembly in this example are the same as those in example 1, and are not described in detail here.

On this basis, the flushing pipe assembly 23 in this example is integrally provided on the outer wall of the casing 22 and is connected to the casing 22 by a coupling member 24 to form a movable assembly.

Specifically, one end of the sleeve 22 is provided with a coupling piece 24; the flushing pipe 23-1 in the flushing pipe assembly 23 is integrally arranged on the outer wall of the sleeve 22 and distributed along the length direction of the sleeve, the length of the flushing pipe 23-1 is longer than that of the sleeve 22, that is, the top end of the flushing pipe 23-1 extends out of the sleeve 22, and the extending length is determined according to actual requirements, such as the distance corresponding to the telescopic adjustment of the externally-hung flushing pipe, but not limited thereto; the rear end of the flushing pipe 23-1 extends into the connecting piece 24 along with the sleeve; the connection nipple 23-2 of the flushing pipe assembly 23 is inserted in the coupling piece 24 and is connected with the flushing pipe 23-1 in a matching way.

On the basis of this, a drive element 25 is arranged on the coupling piece 24 as an operating element for driving the coupling piece 24 to move the sleeve 22 and the flushing pipe assembly 23. The specific design and form of the drive element 25 can be determined according to the actual requirements and is not limited here. By way of example, the drive member 25 may be a push plate.

The movable assembly, which is composed of the flushing pipe assembly 23, the sleeve 22, the coupling 24 and the driving member 25, is movably connected to the connection base 21 through the coupling 24, and the whole assembly can be moved telescopically with respect to the connection base 21.

By way of example, the present embodiment further provides a sliding structure in the connection base 21, which is cooperated with the coupling member 24, such that the coupling member 24 can be integrally disposed in the connection base 21 through the sliding structure, and move relative to the connection base 21 based on the sliding structure, and then the flushing and sucking pipe assembly 23 and the sleeve 22 are driven to move telescopically relative to the connection base 21.

Meanwhile, the connection base 21 is matched with the coupling piece 24, so that the insertion part 12 at the front end of the ear endoscope 10 can be inserted into the sleeve 22 when the connection base 21 is detachably connected with the front end base 11 on the ear endoscope 10, and the suction tube 23-1 distributed outside the sleeve 22 is integrally hung outside the insertion part 12.

The specific structure of the coupling piece 24 and the specific structure of the sliding structure disposed in the connection base 21 in this example are determined according to actual requirements, as long as the above functions can be achieved, and are not limited herein.

By way of example, the coupling member 24 may here take the form of a corresponding cylindrical structure which is integrally fitted over one end of the sleeve 22, and the flushing and suction pipe assembly 23 is connected via this coupling member 24 (as described above in particular).

In cooperation, the interior of the connection base 21 has a hollow structure and has a detachable connection portion to be engaged with the upper front end base 11 of the ear endoscope 10, and a seating portion to be engaged with the coupling member 24, which is provided with a corresponding sliding structure so that the coupling member 24 is moved in the seating portion.

Thus, the link 24 is seated in a seating portion in the connection base 21 and can move in the seating portion based on a sliding structure in the seating portion, and the driving member 25 is connected to the link 24 through the connection base 21 to drive the link 24 to move; the flushing pipe assembly 23 and the sleeve 22 connected to the coupling member 24 extend from the rear end of the connection base 21 and are telescopically movable relative to the connection base 21 by the coupling member 24.

When the externally-hung suction tube 20 is used in cooperation with the ear endoscope 10 and detachably connected to the front end base 11 of the ear endoscope 10 through the connecting base 21, the insertion portion 12 at the front end of the ear endoscope 10 penetrates through the inner cavity of the connecting base 21 and is inserted into the sleeve 22, and the suction tube 23-1 distributed outside the sleeve 22 is integrally hung outside the insertion portion 12.

Therefore, when an operator (such as a physician) performs an otoendoscopic operation, operations with multiple functions can be simultaneously completed by both hands, and operations such as flushing, adsorption and the like can be simultaneously performed in addition to normal operations of the endoscopic operation, and the specific implementation manner is as described in example 1, which is not described herein again.

In addition, during the operation, the externally-hung irrigation and suction tube 20 based on the telescopic structure can drive the connecting piece 24 to move in the connecting base 21 by pushing the driving piece 25, and then the connecting piece 24 drives the sleeve 22 and the irrigation and suction tubes 23-1 distributed on the outer side of the sleeve 22 to axially move relative to the insertion part 12 at the front end of the ear endoscope 10 in the sleeve 22, so that the irrigation and suction tube 23-1 can perform telescopic action relative to the insertion part 12 at the front end of the ear endoscope 10, and the front end of the irrigation and suction tube 23-1 can extend out from the front end of the insertion part 12 on the ear endoscope 10 when needed, so that the front end of the irrigation and suction tube 23-1 can be closer to the focus, and the specific irrigation and suction operations are facilitated; when not needed, the forward end of the irrigation tube 23-1 can be retracted without affecting the normal operation of the insertion portion 12 at the forward end of the in-ear mirror 10.

In addition, since the length of the sleeve 22 is shorter than the length of the insertion portion 12 of the ear endoscope inserted therein in this example, the movement of the sleeve 22 relative to the insertion portion 12 of the ear endoscope does not interfere with the normal operation of the insertion portion 12 of the ear endoscope.

Further, since the distal end of the suction tube 23-1 is capable of freely extending and contracting and is capable of extending from the distal end of the insertion portion 12 at the distal end of the ear endoscope 10 during operation, the distal end opening thereof does not necessarily need to be provided on the tube wall as in example 1, but may be provided directly at the distal end.

The disposable externally hung straw solution formed based on the above example has the following excellent performances in specific application:

1) the capacity of two operations is additionally increased for both hands of a doctor, particularly when the ear endoscope operation is carried out due to the limitation of the space of the ear canal, the difficulty of the operation of the endoscope operation limited by the space can be greatly reduced, and the efficiency and the safety of the operation are improved;

2) the scheme can be applied to other endoscope operations, and can achieve the effect of reducing and reducing wounds compared with the traditional endoscope;

3) the scheme has simple integral structure and easy operation, does not need any improvement or redesign on the endoscope and does not increase the structural complexity of the endoscope;

4) the scheme can be used as a separable instrument attached to the endoscope and can be used as a disposable product, so that the problem of difficult disinfection can be solved;

5) the scheme can adopt a telescopic flushing and sucking tube scheme, does not influence the viewing function of the endoscope, can better match the operation requirements of flushing or sucking, and is convenient for doctors to complete the steps requiring the cooperative operation of both hands. For example, the ear bone is ground and water is flushed at the same time, so that the flying of bone fragments can be reduced, and the like.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The externally-hung type washing and sucking pipe for the endoscope is characterized in that a washing and sucking pipe assembly in the externally-hung type washing and sucking pipe is connected with a base at the front end of the endoscope through a detachable structure and can be distributed outside an insertion part at the front end of the endoscope along the length direction of the insertion part at the front end of the endoscope.

2. The externally-hung irrigation straw for endoscope according to claim 1, wherein the externally-hung irrigation straw comprises:

3. The externally-hung irrigation pipette for endoscope of claim 2, further comprising a control valve assembly, wherein the control valve assembly is connected with the irrigation pipette assembly and externally connected with an irrigation source and/or an adsorption power source.

4. The externally-hung irrigation pipette for endoscope of claim 2, wherein the irrigation pipette assembly is fixedly arranged on the outer wall of the sleeve.

5. The externally-hung irrigation pipette for endoscope of claim 2, wherein the irrigation tube assembly and sleeve are movable along the outer wall of the endoscope insertion part.

6. An externally-hung irrigation pipette as defined in claim 2, 4 or 5 for endoscope use wherein said irrigation pipette assembly comprises at least one tube.

7. The externally-hung irrigation pipette for endoscope of claim 6, wherein the tube body in the irrigation pipette assembly is connected with the control valve assembly through a connecting joint.

8. The externally-hung irrigation pipette for endoscope of claim 6, wherein the outlet of the tube body in the irrigation pipette assembly is arranged on the tube wall or at the end of the tube body.

9. The externally-hung suction tube for endoscope according to claim 8, wherein said outlet is provided with a guide inclined plane, said guide inclined plane having an angle of 10-30 ° with the axial direction of the tube body.

10. The endoscope with the externally-hung type suction tube comprises an endoscope body and is characterized by further comprising the externally-hung type suction tube according to any one of claims 1 to 9, wherein the externally-hung type suction tube is detachably sleeved on the endoscope body through a connecting base on the externally-hung type suction tube.