CN219353843U - Endoscope system - Google Patents

Abstract

The utility model discloses an endoscope system, which comprises an endoscope, a perfusion assembly, a pressure sensor and a control device, wherein the endoscope is provided with a perfusion channel for conveying perfusion liquid into a body cavity; the perfusion assembly is communicated with the perfusion channel and is used for conveying perfusion liquid to a body cavity through the perfusion channel; the pressure sensor is used for detecting the actual pressure value in the body cavity; the control device is in communication connection with the perfusion assembly and the pressure sensor, and is used for controlling the pressure of the perfusate perfused into the body cavity by the perfusion assembly according to the actual pressure value detected by the pressure sensor, and the endoscope system can control the pressure in the body cavity more conveniently according to the requirement.

Description

Endoscope system

Technical Field

The utility model relates to the technical field of endoscopes, in particular to an endoscope system.

Background

Medical endoscopes have been widely used in various departments for examination, and the sites reached by the medical endoscopes in the body cavity can be classified into otorhinolaryngoscopes, gastroenteroscopes, ureteroscopes, arthroscopes and the like. When using ureteroscope in traditional operation in-process, the perfusion pressure of filling normal saline to the body cavity needs the special man to adjust at any time according to the demand, perhaps adopts the pressure measurement part to survey the pressure in the body cavity, utilizes the data automatic control perfusion pump that surveys to adjust the perfusion pressure at last, comparatively loaded down with trivial details and the reliability is low.

Disclosure of Invention

Based on this, to when using ureteroscope in traditional operation in-process, the perfusion pressure of filling normal saline to the body cavity needs special personnel to adjust at any time according to the demand, perhaps adopts the pressure measurement part to survey the pressure in the body cavity, and finally utilizes the automatic control perfusion pump of measured data to adjust the perfusion pressure, comparatively loaded down with trivial details and the low problem of reliability, has proposed an endoscope system, this endoscope system can control the pressure in the body cavity more conveniently as required.

The specific technical scheme is as follows:

the application relates to an endoscope system, comprising an endoscope, an infusion assembly, a pressure sensor and a control device, wherein the endoscope is provided with an infusion channel for delivering an infusion liquid into a body cavity; the perfusion assembly is communicated with the perfusion channel and is used for conveying perfusion liquid to a body cavity through the perfusion channel; the pressure sensor is used for detecting the actual pressure value in the body cavity; the control device is in communication connection with the perfusion assembly and the pressure sensor, and is used for controlling the pressure of the perfusion fluid which is perfused into the body cavity by the perfusion assembly according to the actual pressure value detected by the pressure sensor.

When the endoscope system is used, the perfusion assembly conveys perfusion liquid into a body cavity through the perfusion channel, the pressure value in the body cavity is related to the pressure of the perfusion liquid, and the actual pressure value in the body cavity is detected through the pressure sensor; the control device is in communication connection with the perfusion assembly and the pressure sensor, and is used for controlling the pressure of the perfusion fluid which is perfused into the body cavity by the perfusion assembly according to the actual pressure value detected by the pressure sensor, so that the pressure in the body cavity can be controlled, and the pressure in the body cavity is adjusted more conveniently.

The technical scheme is further described as follows:

in one embodiment, the perfusion assembly comprises a perfusion tube and a flux adjusting unit, the perfusion tube is provided with a conveying channel for communicating the body cavity with a liquid outlet of the perfusion pump, the flux adjusting unit is connected with the perfusion tube and used for adjusting the flux of the conveying channel, the flux adjusting unit is in communication connection with the control device, and the control device is used for controlling the flux adjusting unit to adjust the flux of the conveying channel according to the actual pressure value detected by the pressure sensor.

In one embodiment, the flux adjustment unit comprises a driving unit and a control valve, the control valve is connected with the filling pipe, the control valve is used for controlling the flow rate of the liquid output along the conveying channel, the driving unit is connected with the control valve, the driving unit is in communication connection with the control device, and the control device is used for controlling the driving unit to drive the control valve to adjust the flow rate of the liquid output along the conveying channel according to the actual pressure value detected by the pressure sensor.

In one embodiment, the control valve is movably connected with the pouring tube, and the control valve at least partially extends into the conveying channel from the outside of the pouring tube, and defines a first adjusting channel with the inner wall of the conveying channel, and the driving unit can drive the control valve to movably adjust the flux of the first adjusting channel relative to the pouring tube so as to adjust the flow of the liquid conveyed along the conveying channel.

In one embodiment, the conveying channel comprises a first section channel and a second section channel which are distributed along the liquid conveying direction of the conveying channel, the control valve is provided with a second adjusting channel, and the first section channel is communicated with the second section channel through the second adjusting channel;

the drive unit is capable of driving the control valve to adjust the flux between the second adjustment channel and the first and/or second section channels to adjust the flow rate of the liquid delivered to the second section channel along the first section channel; alternatively, the drive unit can drive the control valve to adjust the flux of the second adjustment passage itself to adjust the flow rate of the liquid delivered to the second-stage passage along the first-stage passage.

In one embodiment, the endoscope comprises a handle, an insertion tube, a snake bone and a tip which are sequentially connected, wherein the handle, the insertion tube, the snake bone and the tip are communicated to form the perfusion channel, the handle is provided with a perfusion fluid inlet communicated with the perfusion channel, and the perfusion assembly is communicated with the perfusion fluid inlet.

In one embodiment, the pressure sensor is coupled to the tip head.

In one embodiment, the pressure sensor is a pressure fiber.

In one embodiment, the endoscope system further comprises a temperature sensor coupled to the tip head.

In one embodiment, the temperature sensor is a temperature measuring optical fiber.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings used in the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Moreover, the figures are not drawn to a 1:1 scale, and the relative sizes of various elements are merely exemplary in the figures, and are not necessarily drawn to true scale.

FIG. 1 is a schematic view of an endoscope in one embodiment;

FIG. 2 is a schematic illustration of an assembly of an insertion tube and a tip in one embodiment;

FIG. 3 is an enlarged schematic view of a portion of FIG. 2A;

FIG. 4 is a schematic view of a perfusion assembly according to one embodiment;

FIG. 5 is a schematic view of another embodiment of a perfusion assembly;

FIG. 6 is a schematic view of another embodiment of a perfusion assembly;

fig. 7 is a schematic view of a perfusion assembly according to another embodiment.

Reference numerals illustrate:

10. an endoscope; 10a, a perfusion assembly; 100. a perfusion tube; 110. a conveying channel; 112. a first section of passage; 114. a second section of channel; 200. a flux adjustment unit; 200a, a control valve; 210. a valve core; 212. a first tuning passage; 220. a second tuning passage; 230. an elastic member; 240. a rotating member; 250. a cover body; 300. a driving unit; 310. a transmission shaft; 320. a motor; 330. an extrusion; 340. a mounting member; 342. a mounting cavity; 400. a bypass passage; 500. a manual dredging valve; 600. a switch valve; 10b, a pressure sensor; 10c, a temperature sensor; 20. a handle; 30. an insertion tube; 40. snake bone; 50. a tip.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The medical endoscope is widely applied to examination of various departments, and has the advantages of small damage, simple and convenient operation, quick postoperative recovery and the like. The parts reached by the medical endoscope in the human body cavity can be classified into otorhinolaryngoscopes, gastroenteroscopes, ureteroscopes, arthroscopes and the like. Ureteroscope technology is increasingly applied to clinic, has become the indispensable part of urology surgery, and in ureteroscope operation, the normal saline that fills into the body cavity can keep the field of vision clear for the operation process, avoids operation damage surrounding tissue, can prop up the cavity simultaneously, maintains the required space of operation.

When using ureteroscope in traditional operation in-process, to the body cavity in filling normal saline by the perfusion pump completion, the perfusion pressure needs the special man to adjust at any time according to the demand, perhaps adopts the pressure measurement part to survey the pressure in the body cavity, utilizes the data automatic control perfusion pump that surveys to adjust the perfusion pressure, comparatively loaded down with trivial details and the reliability is low.

Based on this, the present application proposes an endoscope system that can more conveniently control the pressure inside the body cavity as needed.

Referring to fig. 1, the endoscope system includes an endoscope 10 and a perfusion assembly 10a, wherein the endoscope 10 includes a handle 20, an insertion tube 30, a snake bone 40 and a tip 50 connected in sequence, and the interior of the handle 20, the insertion tube 30, the snake bone 40 and the tip 50 are communicated to form a perfusion channel, and the perfusion assembly 10a is communicated with the perfusion channel and is used for delivering perfusion fluid to a body cavity through the perfusion channel. The handle 20 is provided with a perfusate inlet communicating with the perfusate channel, and the perfusate assembly 10a communicates with the perfusate inlet.

The endoscope system further comprises a pressure sensor 10b and a control device (not shown), the pressure sensor 10b being arranged to detect an actual pressure value in the body cavity. The control device is in communication connection with the infusion assembly 10a and the pressure sensor 10b, and is used for controlling the pressure of the infusion liquid infused into the body cavity by the infusion assembly 10a according to the actual pressure value detected by the pressure sensor 10 b.

When the endoscope system is used, the perfusion assembly 10a conveys perfusion liquid into a body cavity through a perfusion channel, the pressure value in the body cavity is related to the pressure of the perfusion liquid, and the actual pressure value in the body cavity is detected through the pressure sensor 10 b; the control device is in communication connection with the perfusion assembly 10a and the pressure sensor 10b, and is used for controlling the pressure of the perfusion fluid which is perfused into the body cavity by the perfusion assembly 10a according to the actual pressure value detected by the pressure sensor 10b, so that the pressure in the body cavity can be controlled, and the pressure in the body cavity is adjusted more conveniently.

The control device can be a singlechip or a micro control unit or a host. It should be noted that, the communication connection referred to in the present application may be an electrical connection or a connection through a wireless transmission manner.

Referring to fig. 2 and 3, the pressure sensor 10b is disposed on the tip 50. The pressure sensor 10b may be a pressure measuring optical fiber, which is non-contact and is not in contact with the human body when in use, and the pressure measuring optical fiber passes through the tip 50, the snake bone 40, the insertion tube 30 and the handle 20 in sequence and is in communication with the control device through a cable, so that the measured result is transmitted to the control device and displayed, for example, when the control device is an endoscope host, the pressure is displayed through the endoscope host.

With continued reference to fig. 3, the tip 50 is further provided with a temperature sensor 10c for detecting a temperature in the body cavity, where the temperature sensor 10c may be a temperature measuring optical fiber, and the temperature measuring optical fiber is non-contact and does not contact with a human body when in use, and the temperature measuring optical fiber sequentially passes through the tip 50, the snake bone 40, the insertion tube 30, the handle 20 and is in communication connection with the control device through a cable, so that the measured result is transmitted to the control device and displayed, for example, when the control device is an endoscope host, the temperature is displayed through the endoscope host.

Referring to fig. 4 to 7, the perfusion module 10a includes a perfusion tube 100 and a flux adjusting unit 200, the perfusion tube 100 is provided with a delivery channel 110 for communicating the body cavity with a liquid outlet of the perfusion pump, the flux adjusting unit 200 is connected to the perfusion tube 100 for adjusting the flux of the delivery channel 110, the flux adjusting unit 200 is in communication connection with a control device, and the control device is used for controlling the flux adjusting unit 200 to adjust the flux of the delivery channel 110 according to the actual pressure value detected by the pressure sensor 10 b.

The flow rate of the perfusate to be delivered into the body cavity can be adjusted by adjusting the flow rate of the delivery channel 110 by the flow rate adjusting unit 200, the flow rate of the perfusate is positively correlated with the pressure value in the body cavity, and when the flow rate of the perfusate to be delivered into the body cavity is large, the pressure value in the body cavity is large, so that the pressure value in the body cavity can be adjusted by adjusting the flow rate of the perfusate to be delivered into the body cavity.

Referring to fig. 4 to 7, the flux adjusting unit 200 includes a control valve 200a and a driving unit 300, the control valve 200a is connected to the perfusion tube 100, the driving unit 300 is connected to the control valve 200a, and the driving unit 300 is connected to a control device, which is used for controlling the driving unit 300 to drive the control valve 200a to adjust the flux along the conveying channel 110 according to the actual pressure value detected by the pressure sensor 10 b.

When in use, the control valve 200a is used for controlling the flow rate of the liquid output along the conveying channel 110, so that when in use, a user can utilize the control device to control the driving unit 300 to drive the control valve 200a to adjust the flow rate of the liquid output by the conveying channel 110 according to the need, and then the pressure in the body cavity can be controlled, and the flow rate of the perfusate and the pressure in the body cavity can be adjusted more conveniently.

Referring to fig. 4, in some embodiments, the control valve 200a is movably connected to the filling tube 100, and the control valve 200a extends out of the filling tube 100 into the delivery channel 110 at least partially, and defines a first adjustment channel 212 with an inner wall of the delivery channel 110, and the driving unit 300 can drive the control valve 200a to movably adjust a flux of the first adjustment channel 212 relative to the filling tube 100 so as to adjust a flux of the liquid delivered along the delivery channel 110.

It should be noted that, the flux of the first adjustment channel 212 itself refers to the volume of the perfusate that is transferred to the perfusate inlet along the first adjustment channel 212 in a unit time. The greater the flux, the less the portion of the control valve 200a that extends into the perfusion tube 100, the greater the volume of perfusate delivered to the perfusate inlet along the first tuning channel 212 per unit time, whereas the smaller the flux, the more the portion of the control valve 200a that extends into the perfusion tube 100, the less the volume of perfusate delivered to the perfusate inlet along the first tuning channel 212 per unit time.

Referring to fig. 4, in one embodiment, the control valve 200a includes a valve core 210, a first mounting hole is provided on a circumferential wall of the filling tube 100, the valve core 210 extends into the conveying channel 110 through the first mounting hole and defines a first adjusting channel 212 with an inner wall of the conveying channel 110, and the valve core 210 is connected to the driving unit 300 so as to move relative to the filling tube 100 under the driving of the driving unit 300.

Referring to fig. 4, a first adjustment channel 212 is defined between an end portion of the valve core 210 extending into the pouring tube 100 and an inner wall of the pouring tube 100 facing the end portion of the valve core 210, and the flux of the first adjustment channel 212 can be changed when the driving unit 300 drives the valve core 210 to move relatively in a direction approaching or moving away from the inner wall.

The valve element 210 may be movable relative to the infusion tube 100 either directly or rotationally. In other words, the driving unit 300 may be a linear driving mechanism or the driving unit 300 and the valve core 210 may be constructed like a screw nut structure.

For example, referring to fig. 4, in some embodiments, the driving unit 300 includes a transmission shaft 310, a motor 320, and a speed reduction mechanism (not shown), the transmission shaft 310 is provided with a first thread structure, the valve core 210 is provided with a second thread structure, the first thread structure is in screw fit with the second thread structure, an output shaft of the motor 320 is connected to the transmission shaft 310 through the speed reduction mechanism, so as to drive the valve core 210 to move relative to the pouring tube 100 when the output shaft of the motor 320 rotates, and the motor 320 is in communication connection with the control device.

A screw nut-like structure is formed between the transmission shaft 310 and the valve core 210, and when one of them rotates, the other moves forward while rotating. Specifically, the first thread structure may be an internal thread structure, and the second thread structure may be an external thread structure opposite to the internal thread structure; alternatively, the first thread structure may be an external thread structure, and the second thread structure may be an internal thread structure.

With continued reference to fig. 4, on the basis of the foregoing embodiment, the perfusion tube 100 is further provided with a bypass channel 400, and the liquid inlet of the bypass channel 400 and the liquid outlet of the bypass channel 400 are both communicated with the conveying channel 110, and in the direction of conveying the liquid along the conveying channel 110, as indicated by the direction L in fig. 4. The first adjusting channel 212 is disposed between the liquid inlet of the bypass channel 400 and the liquid outlet of the bypass channel 400. The infusion assembly 10a further comprises a manual override valve 500, the manual override valve 500 being connected to the infusion tube 100 for controlling the opening and closing of the bypass channel 400.

When the control valve 200a fails to allow the perfusate to be delivered into the body cavity through the control valve 200a, the manual purge valve 500 is opened to open the bypass passage 400, so that the perfusate can be delivered into the body cavity along the bypass passage 400. When the control valve 200a is in a normal operation state, the manual dredging valve 500 is in a state of closing the bypass passage 400, and the perfusate is still delivered into the body cavity through the control valve 200 a.

The manual purge valve 500 may be any valve body capable of controlling a pipe switch in the prior art, for example, the manual purge valve 500 may be a shut-off valve.

Referring to fig. 5 to 7, in other embodiments, the delivery channel 110 includes a first segment channel 112 and a second segment channel 114 disposed along the liquid delivery direction L of the delivery channel 110, the control valve 200a is provided with a second adjusting channel 220, and the first segment channel 112 is communicated with the second segment channel 114 through the second adjusting channel 220.

In some embodiments, the drive unit 300 is capable of driving the control valve 200a to adjust the flux between the second tuning passage 220 and the first segment passage 112 and/or the second segment passage 114 to adjust the flow of liquid delivered to the second segment passage 114 along the first segment passage 112. Since the second adjustment channel 220 is disposed between the first section channel 112 and the second section channel 114, the perfusate delivered from the first section channel 112 to the second section channel 114 needs to pass through the second adjustment channel 220, and when the flux between the first section channel 112 and the second adjustment channel 220 is changed, the flux between the second section channel 114 and the second adjustment channel 220 is unchanged, or the flux between the first section channel 112 and the second adjustment channel 220 is unchanged, the flux change between the second adjustment channel 220 and the second section channel 114 affects the flow of the perfusate delivered into the body cavity along the second section channel 114.

In particular, the flux between the first segment passage 112 and the second tuning passage 220 may be varied by controlling the flux at the junction of the first segment passage 112 and the second tuning passage 220 by controlling the valve 200a, for example, by squeezing the junction to deform by an external element. Similarly, the flux between the second segment passage 114 and the second tuning passage 220 may be varied by controlling the flux at the junction of the second segment passage 114 and the second tuning passage 220 by controlling the valve 200a, for example, by squeezing the junction to deform by an external element.

Alternatively, in other embodiments, the drive unit 300 can drive the control valve 200a to adjust the flow of the second adjustment channel 220 itself to adjust the flow of liquid delivered along the first stage channel 112 to the second stage channel 114. The manner of adjusting the flux of the second adjusting passage 220 itself may be to press the control valve 200a by an external element, thereby deforming the second adjusting passage 220 and thus realizing the adjustment of the flux of the second adjusting passage 220.

Referring to fig. 5 and 6, for example, in some embodiments, the control valve 200a includes an elastic member 230, the elastic member 230 is formed with a second adjustment channel 220, and the driving unit 300 is configured to apply a force to the elastic member 230, so that the elastic member 230 deforms to adjust the flux of the second adjustment channel 220.

The elastic member 230 may be an elastic pipe, and two ends of the elastic pipe are respectively sleeved with the outer wall of the first section of channel 112 and the outer wall of the second section of channel 114.

Referring to fig. 5 and 6, in some embodiments, the driving unit 300 includes a pressing member 330, a transmission shaft 310, a motor 320, and a speed reducing mechanism (not shown), the pressing member 330 is connected to the transmission shaft 310, an output shaft of the motor 320 is connected to the transmission shaft 310 through the speed reducing mechanism, so that the pressing member 330 is driven to press the elastic member 230 when the output shaft of the motor 320 rotates, and the motor 320 is in communication connection with the control device.

The pressing member 330 may press the elastic member 230 by moving with respect to the elastic member 230, or may press the elastic member 230 by rotating with respect to the elastic member 230.

For example, referring to fig. 5, in some embodiments, the pressing member 330 is a cam, and the rotation of the output shaft of the motor 320 can rotate the cam and press the elastic member 230, thereby achieving the adjustment of the flux of the second adjustment channel 220.

For another example, referring to fig. 6, in some embodiments, the transmission shaft 310 is provided with a first thread structure, and a side of the extrusion 330 facing away from the elastic member 230 is provided with a second thread structure, where the first thread structure is in screw engagement with the second thread structure, and the rotation of the output shaft of the motor 320 can drive the extrusion 330 to move and extrude the elastic member 230. The transmission shaft 310 and the extrusion 330 form a screw-nut-like structure, wherein the first thread structure may be an internal thread structure, and the second thread structure corresponding to the first thread structure may be an external thread structure; alternatively, the first thread structure may be an external thread structure, and the second thread structure corresponding to the first thread structure may be an internal thread structure.

Referring to fig. 6, in this embodiment, the pouring assembly 10a includes a mounting member 340, the mounting member 340 is provided with a mounting cavity 342 having an opening, a circumferential side wall of the mounting member 340 is provided with a through hole communicating with the mounting cavity 342, the mounting member 340 is sleeved on an outer wall of the elastic member 230 through the through hole, the extrusion member 330 extends into the mounting cavity 342 along the opening, the extrusion member 330 is connected with the transmission shaft 310, and the transmission shaft 310 drives the extrusion member 330 to move relative to the mounting member 340 so as to extrude the elastic member 230, thereby realizing adjustment of flux of the second adjustment channel 220.

Referring to fig. 7, in other embodiments, the control valve 200a includes a rotating member 240, the rotating member 240 is provided with a second adjusting channel 220, the second adjusting channel 220 is provided with a first opening for communicating with the first section channel 112 and a second opening for communicating with the second section channel 114, and the rotating member 240 is connected with the driving unit 300 to rotate relative to the first section channel 112 and the second section channel 114 under the driving of the driving unit 300, and the rotating member 240 adjusts the flux between the first opening and the first section channel 112 and the flux between the second opening and the second section channel 114 through rotation.

When the rotating member 240 rotates, the first opening and the first section channel 112 are dislocated, so that the size of the area in the first opening, which is communicated with the first section channel 112, can be adjusted, and the flux between the first opening and the first section channel 112 can be adjusted. Similarly, when the rotating member 240 rotates, the second opening and the second section channel 114 are also dislocated, so that the size of the area in the second opening, which is in communication with the second section channel 114, can be adjusted, and the flux between the second opening and the second section channel 114 can be adjusted.

Referring to fig. 7, in some embodiments, the perfusion tube 100 is formed with a mounting space having two open ends and hollow inside along the radial direction of the conveying channel 110, the first channel 112 and the second channel 114 are disposed at two sides of the mounting space, the rotating member 240 extends into the mounting space from one of the openings and extends out of the mounting space from the other opening to be connected with the driving unit 300, the control valve 200a further includes a cover 250, and the cover 250 covers one of the openings.

Referring to fig. 7, the driving unit 300 includes a transmission shaft 310, a motor 320, and a reduction mechanism (not shown), the rotating member 240 is connected to the transmission shaft 310, an output shaft of the motor 320 is connected to the transmission shaft 310 through the reduction mechanism, so as to drive the rotating member 240 to rotate when the output shaft of the motor 320 rotates, and the motor 320 is connected to the control device in a communication manner.

Referring to fig. 7, a second mounting hole is formed on a side of the rotating member 240 facing away from the cover 250, and the transmission shaft 310 is inserted into the second mounting hole.

Referring to fig. 5 to fig. 7, the filling pipe 100 is further provided with a bypass channel 400, wherein a liquid inlet of the bypass channel 400 and a liquid outlet of the bypass channel 400 are both communicated with the conveying channel 110, and the second adjusting channel 220 is disposed between the liquid inlet of the bypass channel 400 and the liquid outlet of the bypass channel 400 along the liquid conveying direction L of the conveying channel 110; the infusion assembly 10a further comprises a manual override valve 500, the manual override valve 500 being connected to the infusion tube 100 for controlling the opening and closing of the bypass channel 400.

When the control valve 200a fails to enable the perfusate to be delivered into the body cavity through the control valve 200a, the manual dredging valve 500 is opened at this time, so that the bypass channel 400 is conducted, the perfusate can be delivered into the body cavity along the bypass channel 400, and when the control valve 200a is in a normal working state, the manual dredging valve 500 is in a state of closing the bypass channel 400, and the perfusate is still delivered into the body cavity through the control valve 200 a.

The manual purge valve 500 may be any valve body that can control a pipe switch in the prior art, for example, the manual bypass valve may be a shut-off valve.

Referring to fig. 4 to 7, the perfusion module 10a further includes an on-off valve 600, wherein the on-off valve 600 is connected to the perfusion tube 100 for controlling the on-off of the delivery channel 110. When the control valve 200a fails to shut off the delivery passage 110, the delivery passage 110 may be closed by the on-off valve 600. The on-off valve 600 may be any valve body capable of controlling the on-off of a pipeline in the prior art, for example, the on-off valve 600 may be a stop valve.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An endoscope system, comprising:

an endoscope provided with an irrigation channel for delivering an irrigation fluid into a body cavity;

the perfusion assembly is communicated with the perfusion channel and is used for conveying perfusion liquid to the body cavity through the perfusion channel;

a pressure sensor for detecting an actual pressure value within the body cavity; a kind of electronic device with high-pressure air-conditioning system

The control device is in communication connection with the perfusion assembly and the pressure sensor, and is used for controlling the pressure of the perfusion fluid perfused into the body cavity by the perfusion assembly according to the actual pressure value detected by the pressure sensor.

2. The endoscope system according to claim 1, wherein the perfusion assembly comprises a perfusion tube provided with a delivery channel for communicating the body cavity with a liquid outlet of the perfusion pump, and a flux adjustment unit connected to the perfusion tube for adjusting the flux of the delivery channel, the flux adjustment unit being in communication with the control device for controlling the flux adjustment unit to adjust the flux of the delivery channel in dependence of the actual pressure value detected by the pressure sensor.

3. The endoscope system of claim 2, wherein the flux adjustment unit comprises a drive unit and a control valve, the control valve being connected to the irrigation tube, the control valve being for controlling the flow of liquid output along the delivery channel, the drive unit being connected to the control valve and the drive unit being in communication with the control device, the control device being for controlling the drive unit to drive the control valve to adjust the flow of liquid output along the delivery channel in accordance with the actual pressure value detected by the pressure sensor.

4. An endoscope system according to claim 3 and wherein said control valve is movably connected to said irrigation tube and said control valve extends at least partially from outside said irrigation tube into said delivery channel and defines a first adjustment channel with an inner wall of said delivery channel, said drive unit being capable of driving said control valve to movably adjust the flux of said first adjustment channel itself relative to said irrigation tube to adjust the flow of liquid delivered along said delivery channel.

5. The endoscope system of claim 3, wherein the delivery channel comprises a first section channel and a second section channel arranged along a liquid delivery direction of the delivery channel, the control valve is provided with a second adjustment channel, and the first section channel is communicated with the second section channel through the second adjustment channel;

the drive unit is capable of driving the control valve to adjust the flux between the second adjustment channel and the first and/or second section channels to adjust the flow rate of the liquid delivered to the second section channel along the first section channel; alternatively, the drive unit can drive the control valve to adjust the flux of the second adjustment passage itself to adjust the flow rate of the liquid delivered to the second-stage passage along the first-stage passage.

6. The endoscope system of any one of claims 1 to 5, wherein the endoscope comprises a handle, an insertion tube, a snake bone and a tip head connected in sequence, wherein the interiors of the handle, the insertion tube, the snake bone and the tip head are communicated to form the perfusion channel, the handle is provided with a perfusion fluid inlet communicated with the perfusion channel, and the perfusion assembly is communicated with the perfusion fluid inlet.

7. The endoscope system of claim 6, wherein the pressure sensor is coupled to the tip head.

8. The endoscope system of any one of claims 1 to 5, wherein the pressure sensor is a pressure fiber.

9. The endoscope system of claim 6, further comprising a temperature sensor coupled to the tip head.

10. The endoscope system of claim 9, wherein the temperature sensor is a thermometric optical fiber.