Externally mounted flushing and suction tube for laparoscope and laparoscope

Abstract

The present invention discloses an external flushing and suction tube for a laparoscope and a laparoscope. The flushing and suction tube assembly in the external flushing and suction tube is connected to the base at the front end of the laparoscope through a detachable structure, and can be distributed outside the front end insertion part of the laparoscope along the length direction of the front end insertion part of the laparoscope. The solution provided by the present invention abandons the inertial design thinking that the existing functional improvement solution on the front end of the laparoscope needs to adopt a fixed structure to ensure product reliability, and innovatively adopts a reverse design solution to form a disposable flushing and suction tube solution that is externally mounted on the laparoscope, thereby achieving the laparoscope having flushing and suction functions without changing or improving the laparoscope and without affecting the original function or performance of the laparoscope itself, thereby greatly improving the convenience of laparoscopic surgery.

Description

Technical Field

[0001] The present invention relates to medical devices, and particularly to endoscopic instrument technology. Background Art

[0002] An endoscope can enter the human body through the body's natural orifices or through small incisions made during surgery. Based on this, minimally invasive surgery using an endoscope has been widely emphasized and carried out in various surgical fields in recent years because of its many characteristics such as small patient trauma, low surgical risk, rapid postoperative recovery, and little impact on the appearance of the wound surface. For example, ear endoscopy surgery has made important progress in various indications such as cholesteatoma and otitis media and has been widely used.

[0003] As is well known, a major limitation of ear endoscopy surgery is that the ear canal generally has a diameter of only 4 to 5 centimeters, and the operating space is very limited. The operation of the two hands of the physician is very crowded. If different operations such as cutting, peeling, grinding, etc. need to be performed using instruments in combination with the endoscope, and sucking blood, flushing the wound, sucking liquid tissue, etc., the physician must repeatedly change various operating instruments and operate with one hand to complete the surgery, which is very inconvenient. Or two physicians need to cooperate in the operation, which not only increases the cost but also has the problem of inconvenient operation.

[0004] Therefore, how to solve the problems existing in the existing endoscope during the operation process is an urgent problem to be solved in this field.

[0005] The Chinese patent application with the publication number CN109349989A discloses a multifunctional rigid ear endoscope. This solution mainly changes the structural design of the endoscope, adds a function of adjusting brightness to the endoscope, which is convenient for adjusting the brightness with one hand, and also adds the design of an anti-fog tube to solve the problem of fogging on the mirror surface caused by the temperature difference between the endoscope and the human body interior. The dimming switch, anti-fog tube, and endoscope are an integral structure, which increases the complexity of the product and also increases the production cost. Moreover, the change in the structure and shape of the endoscope also limits the use of the endoscope. The diameter of the anti-fog tube is small, the interface is complex, and it is difficult to clean and disinfect after the operation, increasing the use risk.

[0006] Furthermore, in this solution, a negative pressure adsorption needle is designed to suck sewage such as blood and water during the operation. Although the adsorption needle is hung on the endoscope, the adsorption needle cannot be operated by the hand holding the endoscope.

[0007] Another common structure is to integrate the irrigation and aspiration channel into the design of the endoscope insertion part. Since the irrigation tube is added and the external shape remains a round tube, the diameter of the front end of the entire endoscope will become thicker, which will limit the use of the endoscope. For example, when used in the ear canal, due to the limited space in the ear canal, other instruments cannot be used in cooperation, which will make ear endoscopy surgery impossible to perform. Summary of the Invention

[0008] In view of the problems existing in the improvement solutions for enhancing the operation convenience on existing endoscopes (such as otoscopes, etc.), which have complex structures, affect the basic performance of the endoscope, and are not very helpful for the essential problems of the surgery. The field needs a design with a simple structure, convenient use and not affecting the basic performance of the endoscope to improve the operation convenience.

[0009] Therefore, the object of the present invention is to provide an external plug-in flushing and suction tube for an endoscope, the whole structure of which is simple, and can greatly improve the functionality and convenience of endoscope operation without affecting the basic structure and performance of the endoscope. On this basis, the present invention further designs the external plug-in flushing and suction tube in a retractable form, which can realize single-person operation of the endoscope and other auxiliary operation functions based on the flushing and suction tube, helping to improve the surgical efficiency.

[0010] To achieve the above object, the external plug-in flushing and suction tube for an endoscope provided by the present invention, the flushing and suction tube assembly in the external plug-in flushing and suction tube is connected to the base at the front end of the endoscope through a detachable structure, and can be distributed on the outside of the insertion part at the front end of the endoscope along the length direction of the insertion part at the front end of the endoscope.

[0011] Further, the external plug-in flushing and suction tube includes:

[0012] A connecting base, which is detachably connected to the base at the front end of the endoscope;

[0013] A sleeve, which is arranged on the connecting base, and when the connecting base is detachably connected to the base at the front end of the endoscope, the whole sleeve is sleeved on the insertion part at the front end of the endoscope;

[0014] A flushing and suction tube assembly, which is placed on the outer wall of the sleeve and is distributed along the length direction of the sleeve; the flushing and suction tube assembly is communicated with a flushing source and / or a suction power source.

[0015] Further, the external plug-in flushing and suction tube further includes a control valve assembly, which is connected to the flushing and suction tube assembly and is externally connected to a flushing source and / or a suction power source.

[0016] Further, the flushing and suction tube assembly is fixedly arranged on the outer wall of the sleeve.

[0017] Further, the flushing and suction tube assembly and the sleeve can move along the outer wall of the endoscope insertion part.

[0018] Further, the flushing and suction tube assembly includes at least one tube body.

[0019] Further, the tube body in the flushing and suction tube assembly is connected to the control valve assembly through a connecting joint.

[0020] Further, the connecting joint is a Luer joint or a taper joint.

[0021] Furthermore, the outlet on the tube body in the flushing and suction tube assembly is arranged on the tube wall or at the end of the tube body.

[0022] Furthermore, the outlet is provided with a guide slope, and the guide slope forms an angle of 10°-30° with the axial direction of the tube body.

[0023] In order to achieve the above-mentioned purpose, the present invention provides a laparoscope with an external flushing and suction tube, which includes a laparoscope body and the above-mentioned external flushing and suction tube, wherein the external flushing and suction tube is mounted on the laparoscope body through a detachable connection base.

[0024] The solution provided by the present invention abandons the inertial design thinking that the functional improvement solution on the front end of the existing laparoscope (especially the insertion part) needs to adopt a fixed structure to ensure the reliability of the product, and innovatively adopts a reverse design solution to form a disposable (i.e. detachable) flushing and suction tube solution mounted on the laparoscope, thereby achieving the laparoscope having flushing and suction functions without changing or improving the laparoscope and without affecting the original functions or performance (such as inspection function) of the laparoscope itself, which greatly improves the convenience of laparoscope operation.

[0025] Furthermore, this solution adopts a disposable (detachable) structure, which does not require any modification or design of the laparoscope itself, thereby not increasing the complexity of the laparoscope structure; further, the entire flushing and suction tube is set on the front end insertion part of the laparoscope in an external manner, which has little effect on the thickness of the front end insertion part of the laparoscope, and does not affect the use of the front end insertion part of the laparoscope at all, and then does not affect the existing basic functions or performance of the laparoscope; based on the disposable (detachable) structure, it does not affect the maintenance or disinfection operation of the laparoscope itself, and is highly practical.

[0026] In addition, the disposable (detachable) external flushing and suction tube design adopted in this scheme, combined with the laparoscope itself, allows the operator to operate with both hands, while realizing the functions of the laparoscope itself and the flushing and suction functions, avoiding the problem of changing back and forth various operating instruments, greatly improving the convenience of using the laparoscope. Brief Description of the Figures

[0027] The present invention is further described below with reference to the accompanying drawings and specific implementation methods.

[0028] Figure 1 is a schematic diagram of the structure of the ear endoscope involved in Example 1 of the present invention;

[0029] Figure 2 is a schematic diagram of the structure of the externally mounted flushing and suction tube with a fixed structure in Example 1 of the present invention;

[0030] Figure 3 is a schematic diagram of the structure of the outlet of the flushing pipe body of the external flushing and suction pipe in Example 1 of the present invention;

[0031] Figure 4 This is a schematic structural diagram of the externally-mounted flushing and suction tube with a telescopic structure in Example 2 of the present invention. Detailed implementation manners

[0032] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below with reference to specific illustrations.

[0033] As a precision medical instrument, an endoscope (such as an otoscope, etc.) has strict requirements for the size structure of the front-end insertion part of the endoscope based on its special use environment, that is, it is required that the size of the front-end insertion part of the endoscope is small enough and the structure is reliable enough.

[0034] In this case, in order to enable an endoscope that originally does not have a flushing and suction function to have a flushing and suction function that can be used in coordination with the endoscope itself, this solution abandons the conventional design thinking of directly improving the inherent structure of the endoscope and using a fixed structure to ensure the reliability of the endoscope, and innovatively adopts a reverse design solution to form a disposable (i.e., detachable) externally-mounted flushing and suction tube solution for the endoscope. Thus, without changing or modifying the endoscope and without affecting the original functions or performance of the endoscope itself (such as the inspection function), the endoscope is enabled to have a flushing and suction function at the same time, which greatly improves the convenience of endoscope operation.

[0035] The implementation process of the present invention solution will be described below taking an otoscope as an example.

[0036] Example 1

[0037] Refer to Figure 1 , which shows a schematic structural diagram of the otoscope 10 involved in this example. As can be seen from the figure, the otoscope 10 mainly includes a front-end base 11 and a front-end insertion part 12 provided on the front-end base 11 in terms of its composition structure.

[0038] The otoscope 10 with such a structure does not have a flushing and suction function. When in use, it needs to cooperate with other instruments for different operations such as cutting, peeling, grinding and other surgeries, sucking blood, flushing the wound, sucking liquid tissue, etc. Since the operator (for example: a doctor) only holds one instrument with a single hand after holding the endoscope with one hand, and the operation space is very limited, the operator has to change various operating instruments back and forth.

[0039] For this otoscope 10, this example provides a solution for an externally-mounted flushing and suction tube 20, which is externally mounted on the outside of the insertion part 12 of the otoscope 10 in a disposable (i.e., detachable) manner and can be distributed along the length direction of the front-end insertion part of the endoscope. Thus, the otoscope 10 can have a flushing and suction function at the same time without adjusting or modifying the internal structure of the otoscope 10; due to the disposable (i.e., detachable) structural method, it is convenient for use and later disinfection and maintenance.

[0040] Refer to Figure 2 which shows an example of the composition of the external flushing tube 20 in this embodiment. As can be seen from the figure, the external flushing tube 20 given in this embodiment mainly includes a connection base 21, a sleeve 22, a flushing tube assembly 23, and a connecting tube and a control valve assembly (not shown in the figure) in terms of its composition structure.

[0041] Here, the connection base 21 serves as the basic component of the entire external flushing tube 20, is used to connect other components, and serves as the external connection component of the external flushing tube 20 to be detachably connected to the front-end base 11 on the ear endoscope 10, so as to achieve the subsequent disposable type.

[0042] For the detachable connection structure between the connection base 21 and the front-end base 11 on the ear endoscope 10, it can be determined according to actual needs and is not limited here.

[0043] As an example, a connection part (such as a jack, etc.) that cooperates with the front-end base 11 on the ear endoscope 10 is provided on the connection base 21. Through this connection part, the connection base 21 can be sleeved on the front-end base 11 on the ear endoscope 10 and form a reliable detachable connection structure with the front-end base 11 on the ear endoscope 10.

[0044] In addition, the specific composition scheme and structural form of the connection base 21 can be determined according to actual needs and are not limited here. It should be noted here that the detachable connection scheme between the connection base 21 and the front-end base 11 on the ear endoscope 10 is not limited to this, and other feasible schemes can also be adopted according to needs.

[0045] The sleeve 22 in this external flushing tube 20 is arranged on the connection base 21 and can be sleeved on the insertion part 12 of the ear endoscope to serve as the installation support part of the external flushing tube assembly 23.

[0046] The whole sleeve 22 is in a cylindrical shape and its inner diameter corresponds to the outer diameter of the insertion part 12 of the ear endoscope, so as to be sleeved on the insertion part 12 of the ear endoscope, thus not having a great impact on the outer diameter of the insertion part 12 of the ear endoscope and not affecting the operation and function of the insertion part 12 of the ear endoscope.

[0047] As an example, considering that the sleeve 22 is sleeved on the insertion part 12 of the ear endoscope and needs to move synchronously with the insertion part 12 of the ear endoscope, here a stainless steel tube with an inner diameter matching the outer diameter of the insertion part 12 of the ear endoscope is selected to be formed, so that both the strength and the safety and reliability can be ensured.

[0048] The sleeve 22 with such a structure is arranged on the connection base 21 and can be exactly sleeved on the insertion part 12 of the ear endoscope when the connection base 21 is detachably connected to the front-end base 11 on the ear endoscope 10.

[0049] In addition, the specific length of the sleeve 22 is coordinated with the length of the ear endoscope insertion part 12 and is determined according to the actual situation, and is not limited here. The sleeve 22 is not limited to the above-mentioned steel pipe, and can also be made of other feasible materials.

[0050] The flushing and suction pipe assembly 23 in the external flushing and suction pipe 20 is placed on the outer wall of the sleeve 22 as a whole and distributed along the length direction of the sleeve, so as to be externally hung on the outside of the front end insertion part 12 of the laparoscope. By connecting the flushing and suction pipe assembly 23 distributed on the outside of the front end insertion part 12 of the laparoscope to a corresponding power source, flushing and suction actions can be performed, and then the "flushing" and / or "suction" functions can be realized synchronously with the front end insertion part 12 of the laparoscope.

[0051] For example, the flushing and suction pipe assembly 23 includes a flushing and suction pipe 23-1 and a connecting joint 23-2. The flushing and suction pipe 23-1 is 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 suction pipe 23-1 is connected to the connecting joint 23-2 to connect different power sources; the front end of the flushing and suction pipe 23-1 is provided with a corresponding outlet for flushing and suction.

[0052] The structure of the flushing and suction pipe 23-1 here can be determined according to actual needs, such as using a hard pipe with a sufficiently small inner diameter, for example, a thin steel pipe with a small inner diameter, which can ensure a small outer diameter and the reliability of the entire external structure.

[0053] In order to facilitate the connection between the flushing and suction tube 23-1 and the connecting joint 23-2, the rear end of the flushing and suction tube 23-1 extends into the connecting base 21, and the connecting joint 23-2 is inserted on the connecting base 21 and forms a connecting channel with the rear end of the flushing and suction tube 23-1 extending into the connecting base 21. The specific connection structure can be determined according to actual needs.

[0054] The specific configuration of the connection connector 23-2 here can be determined according to actual needs and is not limited here. As an example, the connection connector 23-2 can be a Luer connector or a pagoda connector, depending on the connection method of the catheter.

[0055] Since the flushing and suction tube 23-1 needs to be synchronized with the operation of the ear endoscope insertion part 12 when performing the flushing and suction operation, in order to avoid the flushing and suction tube 23-1 affecting the operation of the ear endoscope insertion part 12 during the flushing and suction operation, the opening 23-3 at the front end of the flushing and suction tube 23-1 is set on the tube wall at the front end of the flushing and suction tube 23-1.

[0056] See also Figure 3, the end of the front end of the flushing tube 23-1 in this example is a closed structure. At the same time, a corresponding opening 23-3 is provided on the outer wall of the front end tube wall of the flushing tube 23-1, that is, the opening direction of the opening 23-3 faces the sleeve 22, and the opening 23-3 communicates with the inner cavity of the flushing tube 23-1.

[0057] Furthermore, the whole of the opening 23-3 is an inclined opening, and has a guiding inclined surface 23-4 in the water outlet direction. The guiding inclined surface 23-4 is at a certain inclination angle relative to the inner cavity of the flushing tube 23-1 to guide and adjust the water flow direction flowing out of the opening 23-3, so as to avoid the water flow flowing out from affecting the ear endoscope insertion part 12. Preferably, the guiding inclined surface 23-4 on the opening 23-3 is arranged at an included angle θ of 10°-30° with the axial direction of the flushing tube 23-1. Through the guiding inclined surface 23-4 arranged in this way, the water flow coming out of the opening 23-3 will be ejected at a certain inclination angle with the flushing tube 23-1. Thus, when used in cooperation with the ear endoscope insertion part 12, the water flow ejected from the opening 23-3 will not hit the ear endoscope insertion part 12, avoiding visual interference, but still within the observable range of the ear endoscope insertion part 12, and the flushing effect can be seen through the ear endoscope insertion part 12.

[0058] If the inclination angle of the guiding inclined surface 23-4 is too small, the water coming out of the opening 23-3 will directly stick to the end of the ear endoscope insertion part 12, causing visual interference to the ear endoscope insertion part 12; if the inclination angle of the guiding inclined surface 23-4 is too large, the water flow coming out of the opening 23-3 will gradually deviate towards the vertical direction, thus leaving the observable range of the ear endoscope insertion part 12.

[0059] As an alternative solution, the flushing tube assembly 23 in this example may include multiple flushing tubes 23-1 and multiple connecting joints 23-2. The multiple flushing tubes 23-1 are respectively fixedly arranged on the outer wall of the sleeve 22 as a whole and are distributed along the length direction of the sleeve 22. The setting scheme of each flushing tube 23-1 is as described above, which will not be elaborated here. Similarly, the multiple flushing tubes 23-1 are also externally mounted relative to the ear endoscope insertion part 12.

[0060] Regarding the number of the flushing tubes 23-1, it is determined according to actual needs. As an example, in this example, if it is necessary to implement two functions of flushing and adsorption, two flushing tubes 23-1 are used, which are respectively connected to different power sources to respectively implement the functions of flushing and suction.

[0061] The control valve assembly in this externally mounted flushing tube 20 is used to connect with the connecting joint 23-2 in the flushing tube assembly 23, and at the same time externally connect the required power source and control the on-off.

[0062] The specific composition of the control valve assembly can be determined according to actual needs and will not be limited here.

[0063] As an example, in this example, a flushing and suction pipe 23-1 is used to realize the flushing and suction function. The control valve assembly can use a corresponding three-way valve assembly, whose output end is connected to the flushing and suction pipe 23-1, and the input end is connected to the flushing source and / or the suction power source. In this way, the connection and disconnection of the flushing source or the suction power source can be effectively controlled by the three-way valve assembly, and then the flushing and suction functions are realized at the flushing and suction pipe 23-1. In order to facilitate one-handed operation, the three-way valve assembly here can adopt a three-way valve setting scheme controlled by one hand.

[0064] In addition, in view of the setting scheme of using two flushing and suction pipes 23-1 in this example, which are used for flushing and adsorption respectively, the control valve assembly can be implemented by two single-way control valves, the output end of the first single-way control valve is connected to the first flushing and suction pipe 23-1, and the input end of the first single-way control valve is connected to the flushing source; the output end of the second single-way control valve is connected to the second flushing and suction pipe 23-1, and the input end of the second single-way control valve is connected to the suction power source; this method uses two single-way control valves to control the connection and disconnection of the flushing source and the suction power source respectively, and then controls the two flushing and suction pipes 23-1 to respectively realize the flushing and suction functions.

[0065] According to this scheme, the disposable external flushing and suction tube 20 is attached to a sleeve with an inner diameter equivalent to the outer diameter of the front insertion part 12 of the ear endoscope 10; when used with the ear endoscope 10, the front insertion part 12 of the ear endoscope 10 passes through the sleeve, so that the flushing and suction tube is detachably fixed to the base and the holder (i.e. the front base 11) on the ear endoscope 10, and the flushing and suction tube is externally hung on the outside of the front insertion part 12 of the ear endoscope 10 along the length direction of the front insertion part 12 of the ear endoscope 10.

[0066] Furthermore, the rear end of the flushing and suction tube is connected to a connecting joint (such as a Luer structure or a pagoda joint), and the connecting joint is connected to a control valve assembly through a catheter, and the control valve assembly is respectively connected to a positive pressure saline solution (flushing catheter) and a negative pressure suction pump (suction catheter). When in use, the flushing and suction tube can realize the functions of "flushing" or "suction" by adjusting the control valve assembly.

[0067] When the disposable external flushing and suction tube 20 is used in conjunction with an otoscope, the operator (such as a physician) can use both hands to perform multiple functions at the same time during otoscope surgery. In addition to the normal operation of endoscopic surgery, flushing and suction operations can also be performed at the same time.

[0068] For example, when performing cutting, peeling, grinding and other operations during ear endoscope surgery, when it is necessary to flush the wound, there is no need to insert other instruments or assist others. During the operation, the operator (such as a doctor) controls the corresponding control valve assembly with one hand to connect the positive pressure saline solution, so that the positive pressure saline solution can flush the wound through the flushing and suction tube 20 hung on the outside of the ear endoscope insertion part, without repeatedly plugging and unplugging instruments; if it is necessary to suck out blood or liquid tissue during the operation, the operator (such as a doctor) only needs to control the corresponding control valve assembly with one hand to connect the negative pressure suction pump during the operation, so that the positive pressure saline solution can generate negative pressure adsorption force through the flushing and suction tube 20 hung on the outside of the ear endoscope insertion part, thereby performing adsorption operation, without repeatedly plugging and unplugging instruments.

[0069] In this way, the convenience of ear endoscopic surgery, which is limited by the space in the ear canal, will be greatly improved, and the efficiency and safety of ear endoscopic surgery will be greatly improved.

[0070] Similarly, the disposable external flushing and suction tube 20 can be used on other endoscopes to improve the convenience of operation, reduce the wound, and greatly improve the efficiency and safety of endoscopic surgery.

[0071] In addition, since the disposable external structure of the flushing and suction tube 20 is a detachable device attached to the endoscope, it can be used as a disposable product in actual application, which effectively solves the problem of difficult disinfection.

[0072] Example 2

[0073] Based on the scheme of Example 1, this example provides a disposable external structure flushing and drinking straw 20. Different from the fixed setting of the flushing and drinking straw in Example 1, the flushing and drinking straw in this example can be telescopic, thereby further improving its performance.

[0074] See also Figure 4 , which shows an example of the composition of the retractable external irrigation and suction straw given in this example.

[0075] As can be seen from the figure, the external flushing and suction pipe 20 mainly includes a connecting base 21, a sleeve 22, a flushing and suction pipe assembly 23, a connecting piece 24, a driving piece 25, and a connecting pipe and a control valve assembly (not shown in the figure).

[0076] The connection base 21 in this example has the same basic structure and functions as those in Example 1. As the basic component of the entire external flushing suction tube 20, it is used to connect other components and serves as the external connection component of the external flushing suction tube 20 to be detachably connected to the front-end base 11 on the ear endoscope 10, so as to achieve subsequent disposability. The detachable connection structure between the connection base 21 and the front-end base 11 on the ear endoscope 10 can be determined according to actual needs and is not limited here.

[0077] The basic structure and functions of the sleeve 22 in this example are the same as those in Example 1, except that its length is shorter than the front-end insertion part of the endoscope (such as the ear endoscope). The specific composition will not be elaborated here.

[0078] The basic composition structure and functions of the flushing suction tube assembly 23 in this example are the same as those in Example 1, which is composed of the corresponding flushing suction tube 23-1 and the connection joint 23-2 in cooperation. The specific composition will not be elaborated here.

[0079] The basic composition structure and functions of the control valve assembly in this example are the same as those in Example 1 and will not be elaborated here.

[0080] On this basis, the flushing suction tube assembly 23 in this example is integrally arranged on the outer wall of the sleeve 22 and is connected to the sleeve 22 through the connecting piece 24 to form a movable assembly.

[0081] Specifically, a connecting piece 24 is arranged at one end of the sleeve 22; the flushing suction tube 23-1 in the flushing suction tube assembly 23 is integrally arranged on the outer wall of the sleeve 22 and is distributed along the length direction of the sleeve. The length of the flushing suction tube 23-1 is longer than that of the sleeve 22, that is, the top end of the flushing suction tube 23-1 extends out of the sleeve 22. The extended length can be determined according to actual needs, such as corresponding to the retractable adjustment distance of the external flushing suction tube, but is not limited to this; the rear end of the flushing suction tube 23-1 extends into the connecting piece 24 along with the sleeve; the connection joint 23-2 in the flushing suction tube assembly 23 is inserted into the connecting piece 24 and is connected to the flushing suction tube 23-1 in cooperation.

[0082] On this basis, the driving part 25 is arranged on the connecting piece 24 as an operating part to drive the connecting piece 24 to drive the sleeve 22 and the flushing suction tube assembly 23 to move. The specific structural scheme and form of the driving part 25 can be determined according to actual needs and are not limited here. By way of example, the driving part 25 can be a push plate.

[0083] The movable assembly composed of the flushing suction tube assembly 23, the sleeve 22, the connecting piece 24 and the driving part 25 is movably connected to the connection base 21 through the connecting piece 24, and the whole can move telescopically relative to the connection base 21.

[0084] As an example, in this example, a sliding structure that cooperates with the connecting piece 24 is further provided in the connecting base 21, so that the connecting piece 24 can be placed in the connecting base 21 as a whole through the sliding structure, and move relative to the connecting base 21 based on the sliding structure, thereby driving the flushing and suction tube assembly 23 and the sleeve 22 to telescopically move relative to the connecting base 21.

[0085] At the same time, through the cooperation between the connection base 21 and the coupling 24, when the connection base 21 is detachably connected with the front end base 11 on the ear endoscope 10, the insertion part 12 at the front end of the ear endoscope 10 can be inserted into the sleeve 22, so that the flushing and suction tube 23-1 distributed outside the sleeve 22 is hung outside the insertion part 12 as a whole.

[0086] The specific structure of the connecting member 24 in this example and the specific structure of the sliding structure provided in the connection base 21 can be determined according to actual needs, as long as the above functions can be achieved, and are not limited here.

[0087] As an example, the coupling 24 may be a corresponding cylindrical structure, which is integrally sleeved on one end of the sleeve 22, and the flushing and suction tube assembly 23 is connected and arranged through the coupling 24 (as described above).

[0088] The interior of the connection base 21 is a hollow structure, and has a detachable connection part that matches the front end base 11 on the ear endoscope 10, and a placement part that matches the connecting piece 24. The placement part is provided with a corresponding sliding structure to enable the connecting piece 24 to move in the placement part.

[0089] In this way, the connecting member 24 is placed in the placement part of the connecting base 21, and can move in the placement part based on the sliding structure in the placement part, and the driving member 25 passes through the connecting base 21 and is connected to the connecting member 24 to drive the connecting member 24 to move; the flushing and suction pipe assembly 23 and the sleeve 22 connected to the connecting member 24 extend from the tail end of the connecting base 21, and can be telescopically moved relative to the connecting base 21 under the drive of the connecting member 24.

[0090] When the external flushing and suction tube 20 is used in conjunction with the ear endoscope 10, the connection base 21 is detachably connected to the front end base 11 of the ear endoscope 10. At this time, the insertion portion 12 at the front end of the ear endoscope 10 will pass through the inner cavity of the connection base 21 and be inserted into the sleeve 22. The flushing and suction tube 23-1 distributed outside the sleeve 22 is hung on the outside of the insertion portion 12 as a whole.

[0091] ​​So that the operator (such as a doctor) can complete multiple functional operations simultaneously with both hands during otoscopic surgery. In addition to the normal operations of endoscopic surgery, operations such as flushing and suction can also be carried out simultaneously. The specific implementation method is as described in Example 1 and will not be elaborated here.

[0092] In addition, during the operation, the external flushing and suction tube 20 based on this 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 flushing and suction tube 23-1 distributed on its outer side to move axially relative to the insertion part 12 at the front end of the otoscope 10 inside the sleeve 22. Thus, the flushing and suction tube 23-1 can perform telescopic movements relative to the insertion part 12 at the front end of the otoscope 10. In this way, when needed, the front end of the flushing and suction tube 23-1 can extend from the front end of the insertion part 12 of the otoscope 10, making the front end of the flushing and suction tube 23-1 closer to the lesion, facilitating specific flushing and suction operations; when not needed, the front end of the flushing and suction tube 23-1 can be retracted without affecting the normal operation of the insertion part 12 at the front end of the otoscope 10.

[0093] In addition, since the length of the sleeve 22 in this example is shorter than the length of the insertion part 12 of the otoscope inserted therein, the sleeve 22 will not interfere with the normal operation of the insertion part 12 of the otoscope during the movement relative to the insertion part 12 of the otoscope.

[0094] Furthermore, since the front end of the flushing and suction tube 23-1 can freely expand and contract and can extend from the front end of the insertion part 12 at the front end of the otoscope 10 during operation, the front end opening does not necessarily need to be opened on the tube wall as in Example 1 and can be directly opened at the end.

[0095] When the flushing and suction tube solution with a disposable external structure formed based on the above example is specifically applied, it will have the following excellent performances:

[0096] 1) It can add the ability for the doctor to perform two additional operations simultaneously with both hands. Especially during otoscopic surgery due to space limitations in the ear canal, it can greatly reduce the difficulty of endoscopic surgery restricted by space and improve the efficiency and safety of such surgeries;

[0097] 2) This solution can also be applied to other endoscopic surgeries and can achieve the effect of reducing and minimizing the wound compared to using traditional endoscopes;

[0098] 3) The overall structure of this solution is simple and easy to operate. At the same time, it does not require any improvement or redesign of the endoscope and does not increase the structural complexity of the endoscope;

[0099] 4) As an instrument separable from the endoscope and attached, this solution can be used as a disposable product, which can solve the problem of difficult disinfection;

[0100] 5) This solution can adopt a retractable flushing tube solution, which does not affect the inspection function of the endoscope, can better meet the surgical requirements of flushing or suction, and facilitates the doctor to complete the steps that require two-handed coordinated operation. For example, flushing water while grinding the ear bone can reduce the flying of bone chips, etc.

[0101] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An external flushing and suction tube for laparoscope, characterized in that: The flushing and suction tube assembly in the external flushing and suction tube is connected to the base at the front end of the laparoscope through a detachable structure, and can be distributed outside the front end insertion part of the laparoscope along the length direction of the front end insertion part of the laparoscope; the external flushing and suction tube includes: A connecting base, the connecting base being detachably connected to the base at the front end of the laparoscope; A sleeve, which is arranged on the connection base and is integrally sleeved on the insertion portion of the front end of the laparoscope when the connection base is detachably connected to the front end base of the laparoscope; A flushing and suction pipe assembly, the flushing and suction pipe assembly is placed on the outer wall of the sleeve and distributed along the length direction of the sleeve, and is connected to the sleeve through a connecting piece to form a movable assembly, the movable assembly is movably connected to the connecting base through the connecting piece, and the flushing and suction pipe assembly and the sleeve connected to the connecting piece can be driven by the connecting piece to be telescopically movable relative to the connecting base as a whole; A control valve assembly is connected to the flushing and suction pipe assembly and is externally connected to a flushing source and / or an adsorption power source.

2. The external flushing and suction tube for laparoscope according to claim 1, characterized in that: The flushing and suction pipe assembly is fixedly arranged on the outer wall of the sleeve.

3. The external flushing and suction tube for laparoscope according to claim 1 or 2, characterized in that: The flushing and suction tube assembly includes at least one tube body.

4. The external flushing and suction tube for laparoscope according to claim 3, characterized in that: The pipe body in the flushing and suction pipe assembly is connected to the control valve assembly through a connecting joint.

5. The external flushing and suction tube for laparoscope according to claim 3, characterized in that: The outlet on the pipe body in the flushing and suction pipe assembly is arranged on the pipe wall or at the end of the pipe body.

6. The external flushing and suction tube for laparoscope according to claim 5, characterized in that: The outlet is provided with a guide slope, and the guide slope forms an angle of 10°-30° with the axial direction of the tube body.

7. A laparoscope with an external flushing and suction tube, comprising a laparoscope body, characterized in that: It also includes the external flushing and suction tube according to any one of claims 1 to 6, and the external flushing and suction tube is mounted on the laparoscope body through a detachable sleeve connected to the base.

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