CN113598693A - Endoscope flushing pressurizing device and method thereof - Google Patents
Endoscope flushing pressurizing device and method thereof Download PDFInfo
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- A61B1/126—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning in-use
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Abstract
本发明涉及腔镜冲洗加压装置及其方法，所述腔镜冲洗加压装置包括清洗套管、电机模块、驱动模块、控制单元以及加压泵，所述清洗套管适于装配在腔镜上，所述加压泵连通于所述清洗套管，并具有用于容纳清洗液体的容纳腔和设置在所述容纳腔两端的推动端和出液端，所述驱动模块用于基于所述控制单元的控制指令控制所述电机模块推动所述推动端，所述推动端与清洗液体的接触面积被设置为大于所述出液端与清洗液体的接触面积，以在所述推动端被所述电机模块推动时，所述推动端能够将所述容纳腔中的清洗液体自所述出液端高速推出，从而确保所述腔镜冲洗加压装置对所述腔镜具有良好的清洗效果。
The present invention relates to an endoscopic flushing and pressurizing device and a method thereof. The endoscopic flushing and pressurizing device comprises a cleaning sleeve, a motor module, a driving module, a control unit and a pressurizing pump, and the cleaning sleeve is suitable for being assembled on a endoscopic On the upper side, the pressurizing pump is communicated with the cleaning sleeve, and has an accommodating cavity for accommodating the cleaning liquid, and a pushing end and a liquid outlet end arranged at both ends of the accommodating cavity, and the driving module is used for The control instruction of the control unit controls the motor module to push the push end, and the contact area between the push end and the cleaning liquid is set to be larger than the contact area between the liquid outlet end and the cleaning liquid, so that the push end is blocked by the push end. When the motor module is pushed, the pushing end can push out the cleaning liquid in the accommodating cavity from the liquid outlet end at a high speed, thereby ensuring that the cavity mirror flushing and pressurizing device has a good cleaning effect on the cavity mirror.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an endoscope flushing and pressurizing device and method.
Background
The endoscope technology is a precondition of minimally invasive surgery technology, is not only widely applied to conventional operations such as appendicitis, inguinal hernia and the like, but also widely applied to operation treatment of colorectal cancer and gastric cancer at present after safety of a large number of high-quality clinical studies is repeatedly verified, becomes an indispensable working platform for gastrointestinal surgeons, and is one of core standards for measuring the level of general surgery of a medical unit.
In actual operation, the endoscope lens is used as visual field guide of all members of an operation group, and the fact that whether the operation is safe and smooth or not is directly related to the clarity and stability of the endoscope lens. However, in operation, the lens is difficult to be prevented from being polluted due to the temperature difference between the inside and the outside of the abdominal cavity and the splash of blood fat drops, the operation needs to be immediately interrupted for cleaning, and at present, the scheme that the endoscope lens is withdrawn from the body of a patient and is cleaned and wiped outside the body of the patient is mostly adopted. However, the operation time can be prolonged by temporarily interrupting the operation, meanwhile, doctors cannot observe the abdominal cavity state of the patient in time, critical operations such as hemostasis cannot be performed, and huge potential safety hazards exist. In the prior art, a part of the handrails adopt a tissue wiping method, namely, the surfaces of a greater omentum and an organ in a cavity of a patient are used for wiping a lens. The method cannot ensure the cleaning quality and has larger safety risk.
For the cleaning problem of the endoscope lens, some existing patents provide endoscope cleaning devices, for example, patent applications with the Chinese patent publication number of CN109497916A and the publication number of 2019, 3 and 22 relate to a washing and drying device of the endoscope lens, which can directly wash the lens in a body cavity, but the device design improves the existing standard endoscope, the improvement range is large, the device cannot be used universally, and the application range is small. Chinese patent publication No. CN102578999A, the patent application of publication No. 2012/7/18 relates to a laparoscope lens washing and drying device, which is characterized in that a sleeve is designed, and a washing tube is arranged on the wall of the sleeve to wash the laparoscope lens through a through hole, but the sleeve is complex in design, complex in sleeve processing, high in cost and difficult in disinfection, and because a patient cavity has a certain pressure, the conventional medical water injection balloon is difficult to inject water with the same water pressure into the patient cavity, and the laparoscope cleaning effect is limited.
Disclosure of Invention
The invention aims to provide an endoscope flushing and pressurizing device and method which are simple in structure, easy to operate and good in cleaning effect and are suitable for various existing standard endoscope instruments.
An endoscope flushing pressurizing device, comprising:
a cleaning cannula adapted to fit on an endoscope; and
the pressurizing pump is communicated with the cleaning sleeve and is provided with a containing cavity for containing cleaning liquid, a pushing end and a liquid outlet end, the pushing end and the cleaning liquid are arranged at two ends of the containing cavity, the contact area of the pushing end and the cleaning liquid is set to be larger than that of the liquid outlet end and the cleaning liquid, so that when the pushing end is driven, the pushing end can push out the cleaning liquid in the containing cavity from the liquid outlet end at high speed and high pressure, and the endoscope flushing and pressurizing device is ensured to have a good cleaning effect on the endoscope.
In an embodiment of the invention, the endoscope flushing and pressurizing device further comprises a control unit and a motor module connected to the pushing end of the pressurizing pump, wherein the motor module is used for driving the pushing end based on a control command output by the control unit and adjusting an output torque according to the control command so as to change the pushing force on the pushing end.
In an embodiment of the present invention, the control unit includes a voice recognition module and/or a limb movement recognition module to generate the corresponding control instruction based on a voice instruction and/or a limb movement instruction of an operator.
In an embodiment of the invention, the endoscope flushing and pressurizing device further comprises a driving module, and the driving module is connected to the control unit and the motor module and is used for driving the motor module to work according to the control command output by the control unit.
In an embodiment of the invention, the endoscope flushing and pressurizing device further includes an operation switch communicably connected to the control unit, the control unit is configured to detect a state of the operation switch, and output the corresponding control command to control the operation of the motor module based on the on and off of the operation switch, and the operation switch is a hand operation switch or a foot operation switch.
In an embodiment of the present invention, the endoscope flushing pressurizing device further includes a flushing switch, and the flushing switch is configured to control to switch between a working state and a suspended state of the endoscope flushing pressurizing device, where in the working state, the endoscope flushing pressurizing device is in a state of waiting for the control instruction or in a state of cleaning the endoscope, and in the suspended state, the endoscope flushing pressurizing device is in a power-off state.
In an embodiment of the invention, the pressurizing pump is detachably connected to the motor module and the cleaning sleeve, so that in the pause state, the endoscope flushing pressurizing device can be replaced by a new pressurizing pump, and the pressurizing pump is connected to the motor module through a hose.
In an embodiment of the invention, the endoscope flushing pressurizing device further includes a temperature control part, the temperature control part is disposed on the pressurizing pump or the cleaning sleeve, and is communicably connected to the control unit, and is configured to adjust the temperature of the cleaning liquid in the pressurizing pump or the cleaning sleeve in real time according to a temperature control instruction output by the control unit, and monitor the temperature of the cleaning liquid in the pressurizing pump or the cleaning sleeve in real time.
In one embodiment of the invention, the pressure pump is filled with a pre-warmed cleaning fluid.
In an embodiment of the invention, the endoscope flushing and pressurizing device further comprises a power module, wherein the power module is electrically connected to the control unit and the motor module and provides electric energy for the control unit and the motor module.
A method for washing and pressurizing a cavity mirror is suitable for a device for washing and pressurizing the cavity mirror and comprises the following steps:
s1, turning on the flushing switch, and switching the cavity mirror flushing pressurizing device to a working state;
s2, the control unit detects the state of the operation switch or the voice command and/or the limb action command of the operator in real time, and outputs the control command to the driving module when receiving the command that the operation switch is turned on or detecting the voice command and/or the limb action command of the operator;
s3, the driving module controls the driving motor module based on the control command output by the control unit; and
and S4, the motor module pushes the pushing end of the pressure pump to push out the cleaning liquid in the pressure pump at a high speed so as to clean the cavity mirror.
In an embodiment of the present invention, the method for flushing and pressurizing the endoscope flushing and pressurizing device further includes the steps of: and closing the flushing switch, switching the endoscope flushing pressurizing device to a pause state, disassembling the pressurizing pump, and replacing the pressurizing pump with a new one.
The endoscope flushing and pressurizing device has the following beneficial effects:
(1) the endoscope flushing pressurizing device pressurizes the cleaning liquid through the pressurizing pump, and ensures that the pressure of the cleaning liquid is higher than the pressure in the cavity of the patient, so that the cleaning liquid can be smoothly sprayed out of the cavity of the patient and the endoscope lens can be cleaned; the pressure pump can pressurize the cleaning liquid according to the Pascal law, the cleaning effect is good, an additional electronic device or an expensive pressure water pump is not needed, the flushing structure is simple, the operation is simple, and the cost is low;
(2) the endoscope flushing and pressurizing device can control and adjust the thrust on the pressurizing pump in a mode of controlling and adjusting the output torque of the motor module so as to avoid the influence of insufficient or overhigh pressure of cleaning liquid on organs and tissues in a patient body, and the cleaning is reliable and safe;
(3) the endoscope flushing pressurizing device can realize flushing control of the endoscope lens through various modes such as an operator limb action instruction, a voice instruction and the like, is simple to operate, is favorable for liberating the two hands of a doctor and is convenient for other operations of the doctor;
(4) the endoscope flushing and pressurizing device can be suitable for being assembled on various existing standard endoscope instruments through the structures of the hose and the cleaning sleeve, can be used without modifying the structure of the existing endoscope, and is wide in application range and convenient and simple to assemble;
(5) in the actual use process of the endoscope flushing and pressurizing device, the structures except the cleaning sleeve are positioned outside the body of the patient, in the actual intracavity surgery, compared with the existing endoscope, the endoscope flushing and pressurizing device only adds the sleeve with a diameter slightly larger than that of the endoscope, does not violate the original purpose of the endoscope minimally invasive surgery, is suitable for various intracavity surgeries, does not have mechanical parts entering the body of the patient, avoids influencing the internal organs and tissues of the patient, and is safe and reliable.
Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.
Drawings
FIG. 1 is a schematic structural diagram of the endoscope flushing pressurizing device according to a preferred embodiment of the invention;
FIG. 2 is a schematic block diagram of the structure of the endoscope flushing pressurizing device shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a pressurizing pump of the endoscope flushing pressurizing device shown in FIG. 1;
FIG. 4 is a schematic structural diagram of a pressurizing pump with a temperature control assembly of the endoscope flushing pressurizing device shown in FIG. 1;
FIG. 5 is a flow chart of a flushing and pressurizing method of the endoscope flushing and pressurizing device shown in FIG. 1.
The reference numbers illustrate: 100-chamber mirror flushing and pressurizing device; 10-a pressure pump; 101-a containment chamber; 102-a pushing end; 103-liquid outlet end; 11-a motor module; 12-a power supply module; 13-a drive module; 14-a control unit; 15-operating a switch; 16-cleaning the sleeve; 17-a flush switch; 18-a temperature control assembly; 20-cavity mirror; 21-an endoscope lens; 41-cleaning liquid; 51-hose.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5, the endoscope flushing pressurizing device and method according to a preferred embodiment of the invention are specifically illustrated.
As shown in fig. 1 to 4, the endoscope flushing pressurizing device 100 comprises a cleaning sleeve 16 and a pressurizing pump 10 communicated with the cleaning sleeve 16, the cleaning sleeve 16 is suitable for being assembled on an endoscope 20, the pressurizing pump 10 is provided with a containing cavity 101 for containing cleaning liquid, and a pushing end 102 and a liquid outlet end 103 which are arranged at two ends of the containing cavity 101, the contact area of the pushing end 102 and the cleaning liquid is set to be larger than that of the liquid outlet end 103, so that when the pushing end 102 is driven, the pushing end 102 can push the endoscope cleaning liquid in the containing cavity out of the liquid outlet end 103 at high speed and high pressure, and the flushing pressurizing device 100 can ensure that the endoscope lens 21 of the endoscope 20 has a good cleaning effect.
In particular, the endoscope flushing pressurizing device 100 adopts the motor module 11 to control and push the pushing end of the pressurizing pump 10, and the pressurizing pump 10 pressurizes the cleaning liquid based on pascal's law.
Specifically, the pushing end 102 can move under the pushing of the motor module 11, and the liquid outlet end 103 is connected to the cleaning sleeve 16 through a hose 51. Assuming that the contact area between the pushing end 102 and the cleaning liquid is S1, the contact area between the liquid outlet end 103 and the cleaning liquid is S2, the pushing force exerted by the motor module 11 on the pushing end 102 through the output shaft thereof is F1, and the pressure F2 of the cleaning liquid flowing out of the liquid outlet end 103 according to pascal' S law is:
F2＝F1×S2/S1 (1)。
it can be understood that, since the area S2 of the liquid outlet end 103 is set to be much smaller than the area S1 of the pushing end 102, the liquid outlet end 103 can be ensured to flow out the cleaning liquid with high pressure and large flow rate in unit time and unit area, and the cleaning effect on the cavity mirror lens 21 is ensured.
It should be noted that the cleaning liquid 41 in the pressure pump 10 can be clear water or sterile physiological saline, and the invention is not limited thereto.
Further, the endoscope flushing and pressurizing device 100 further comprises a control unit 14 and a driving module 13 connected to the control unit 14 and the motor module 11, the motor module 11 is configured to drive the pushing end 102 based on a control command output by the control unit 14, and is configured to adjust an output torque according to the control command to change a thrust force on the pushing end 102, and the driving module 13 is configured to drive the motor module 11 to operate according to the control command output by the control unit 14.
It can be understood that the driving module 13 can adjust the output torque of the motor module 11 based on the control command output by the control unit 14, so as to change the pushing force F1 of the pushing end 102, and further adjust the pressure F2 of the cleaning liquid output by the liquid outlet end 103, so that the cleaning liquid 41 entering the body of the patient has a pressure higher than the pressure in the cavity of the patient, thereby better cleaning the cavity lens 21.
In addition, the endoscope flushing pressurizing device 100 not only can pressurize the cleaning liquid, so that the pressure of the cleaning liquid can be higher than the pressure in the patient cavity, thereby ensuring that the cleaning liquid can be smoothly sprayed out of the patient cavity and clean the endoscope lens 21, and having good cleaning effect, but also can adjust the output torque of the motor module 11 to adjust the thrust of the pushing end 102, thereby adjusting the pressure of the cleaning liquid, ensuring that the pressure of the cleaning liquid is not too high to influence the internal organs or tissues of the patient, and ensuring the cleaning safety.
It is worth mentioning that the control unit 14 is configured to output the control command based on the voice command or the limb movement command of the operator, and the operation mode is simple, which is beneficial to freeing the hands of the operator.
For example, the control unit 14 may include a voice recognition module and/or a limb motion recognition module to generate the corresponding control command based on a voice command of an operator and/or a limb motion command, and the voice recognition module may control the motor module 11 to push the pressure pump 10 to flush the cavity mirror lens 21 according to a preset operation command, for example, when the voice recognition module recognizes that the operator says "cavity mirror flushing", the control unit 14 sends a flushing command to the driving module 13 to control the motor module 11 to push the pressure pump 10 to flush the cavity mirror lens 21.
Alternatively, the speech segments for starting and stopping the flushing by the control unit 14 may be set in advance according to the habit of the operator.
Further, the endoscope flushing pressurizing device 100 further comprises an operation switch 15 communicably connected to the control unit 14, the control unit 14 is configured to detect a state of the operation switch 15, and output the corresponding control command to control the operation of the motor module 11 based on/off of the operation switch 15, and the operation switch 15 is a hand operation switch or a foot operation switch, and can be driven by an operator using a hand or a foot.
That is to say, the endoscope flushing pressurizing device 100 can control the flushing operation through voice recognition or limb movement recognition or by directly operating the operating switch 15, and the operation mode is simple, convenient and flexible. And through the mode of speech control, be favorable to liberating operator's both hands, be convenient for the operator to carry out other operation operations.
It should be noted that the control command output by the control unit 14 includes a flushing command and a flushing stop command, which is not limited by the present invention.
Further, the endoscope flushing pressurizing device 100 further comprises a flushing switch 17, wherein the flushing switch 17 is used for controlling and switching the working state and the pause state of the endoscope flushing pressurizing device 100, in the working state, the endoscope flushing pressurizing device 100 is in a state of waiting for the control instruction or in a state of cleaning the endoscope 20, and in the pause state, the endoscope flushing pressurizing device 100 is in a power-off state.
It can be understood that the pressurizing pump 10 of the endoscope flushing pressurizing device 100 comprises one or more pressurizing pumps, the inside of which is filled with cleaning liquid, when the liquid in the pressurizing pump fixed on the endoscope flushing pressurizing device 100 is insufficient to clean the endoscope lens 21 for one time, an operator can control the flushing switch 17 to switch the pause state of the endoscope flushing pressurizing device 100, and the operator can replace the new pressurizing pump. That is, the pressurizing pump 10 is detachably connected to the motor module 11 and the cleaning sleeve 16, so that in the pause state, the endoscope flushing pressurizing device 100 can be replaced with a new pressurizing pump.
Further, since the cleaning liquid 41 is to enter the body of the patient, in order to reduce discomfort of the patient, avoid spasm of the organs of the patient, and avoid fogging of the endoscopic lens 21 due to an excessive temperature difference, the temperature of the cleaning liquid 41 should be close to the temperature inside the patient, as shown in fig. 3, in an embodiment of the present invention, a pre-warmed cleaning liquid is filled in the pressure pump 10, and the cleaning liquid can be warmed by other devices in advance, and then the pressure pump 10 is installed, so as to reduce discomfort of the patient and avoid fogging of the endoscopic lens 21 when the endoscopic washing and pressurizing device 100 washes the endoscopic lens 21.
In another embodiment of the present invention, the endoscope flushing pressurizing device 100 may also be provided with a temperature control component 18, and the temperature control component 18 is disposed on the pressurizing pump 10 or the endoscope cleaning sleeve 16, and is communicably connected to the control unit 14, and is configured to adjust the temperature of the cleaning liquid 41 in the pressurizing pump 10 or the endoscope cleaning sleeve 16 in real time according to a temperature control instruction output by the control unit 14, and monitor the temperature of the cleaning liquid 41 in the pressurizing pump 10 or the endoscope cleaning sleeve 16 in real time.
In the preferred embodiment, as shown in fig. 4, the temperature control assembly 18 is disposed on the pressure pump 10, and preferably, the temperature control assembly 18 may be a heating wire disposed around the outer end of the pressure pump 10 to uniformly heat the cleaning liquid 41 flowing through the pressure pump 10.
In some embodiments, the temperature control component 18 may also be disposed inside the cleaning sleeve 16, and preferably, the temperature control component may be a heating wire disposed inside the cleaning sleeve 16, and after the cleaning liquid 41 enters the cleaning sleeve 16 from the pressure pump 10, the heating wire uniformly heats the cleaning liquid 41 flowing through the cleaning sleeve 16, so as to ensure that the cleaning liquid 41 cleans the endoscope at a proper temperature.
It should be noted that the temperature control assembly 18 may have a preset temperature range, and when the temperature control assembly 18 exceeds the temperature range, for example, when the temperature control assembly is below the temperature range, the temperature control assembly 18 feeds back information to the control unit 14 to control the temperature control assembly 18 to continue heating until the temperature of the cleaning liquid 41 is within the proper temperature range; when the temperature exceeds the temperature range, the temperature control assembly 18 feeds back information to the control unit 14 to control the temperature control assembly 18 to stop heating, so as to prevent the temperature of the cleaning liquid 41 from being too high due to overheating.
Further, the endoscope flushing pressurizing device 100 further comprises a power module 12, wherein the power module 12 is electrically connected to the control unit 14, the driving module 13 and the motor module 11, and provides electric energy for the control unit 14, the driving module 13 and the motor module 11.
It can be understood that, as shown in fig. 5, the process of flushing the cavity mirror lens 21 by the cavity mirror flushing pressurizing device 100 of the present invention is as follows: the cleaning sleeve 16 portion of the endoscopic irrigation pressurizing device 100 enters the patient along with the medical pin. The doctor observes and operates through the operation through the endoscope lens 21, and judges whether need wash endoscope lens 21. When the doctor thinks that the cleaning is needed, the doctor can control the operating switch 15 by himself or the limbs of the assistant, or the doctor can control the endoscope flushing pressurizing device 100 to flush the endoscope lens 21 by carrying out voice control unit according to a preset mode. After receiving an operation switch or a voice flushing instruction, the control unit 14 generates the control instruction, and controls the motor module 11 to push the pressure pump 10 through the driving module 13, so as to push the high-pressure cleaning liquid 41 into the cleaning sleeve 16, thereby cleaning the endoscope lens 21. When an operator stops controlling the operation switch 15 or sends a pre-stored voice command for stopping cleaning, the control unit 14 generates a control command for stopping cleaning, and stops controlling the motor module 11 to push the pressure pump 10, so as to stop cleaning the cavity mirror lens 21.
It should be noted that, in the endoscopic irrigation pressurizing device 100, only the cleaning sleeve 16 is partially inserted into the cavity of the patient during the operation, and the motor module 11, the power module 12, the pressurizing pump 10, the driving module 13, the control unit 14, the operating switch 15 and the irrigation switch 17 of the endoscopic irrigation pressurizing device 100 are all located outside the patient, so as to avoid the influence on the organs and tissues in the patient and avoid the generation of a large operation wound on the abdomen of the patient.
In other words, compared with the existing laparoscope, the laparoscopic irrigation pressurizing device 100 of the present invention only increases the volume of the cleaning cannula 16, so that the overall volume is small, and the device is suitable for the abdominal cavity operation and does not violate the original purpose of the minimally invasive abdominal cavity operation.
It should be noted that the cleaning sleeve 16 is preferably made of a material with elasticity, such as rubber, plastic, etc., and the present invention is not limited thereto.
It is understood that the present invention also provides in another aspect a flushing pressurizing method for the endoscope flushing pressurizing device 100, comprising the following steps:
s1, turning on a flushing switch 17, and switching the cavity mirror flushing pressurizing device 100 to a working state;
s2, the control unit 14 detects the state of the operation switch 15 or the voice command and/or the limb movement command of the operator in real time, and when receiving the command that the operation switch 15 is turned on or detecting the voice command and/or the limb movement command of the operator, the control unit 14 outputs a control command to the driving module 13;
s3, the driving module 13 controls the driving motor module 11 based on the control command outputted from the control unit 14; and
s4, the motor module 11 pushes the pushing end 102 of the pressure pump 10 to push out the cleaning liquid in the pressure pump 10 at a high speed, and the cavity mirror lens 21 of the cavity mirror 20 is cleaned.
Further, the flushing and pressurizing method of the endoscope flushing and pressurizing device 100 further comprises the following steps: and closing the flushing switch 17, switching the endoscope flushing pressurizing device 100 to a pause state, disassembling the pressurizing pump 10 and replacing the pressurizing pump with a new one.
In general, the invention provides the endoscope flushing and pressurizing device and the method which have the advantages of simple structure, easiness in operation and good cleaning effect and are suitable for various existing standard endoscope instruments.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
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