Pulse assembly, insertion tube assembly and sputum aspirator

Abstract

The invention discloses a pulse assembly, an insertion tube assembly and a sputum aspirator, and relates to the field of medical instruments, the pulse assembly is used for the sputum aspirator, the sputum aspirator comprises an insertion tube, the insertion tube is provided with a suction channel, the pulse assembly comprises a shielding part and a driving part, and the shielding part is arranged on the insertion tube and configured to be used for shielding the suction channel; and the driving part is used for driving the shielding part so as to change the circulation area of the suction channel. A medical worker can operate the driving piece to drive the shielding piece so as to adjust the circulation area of the suction channel. Under the condition that the flow in the suction channel is the same, when the area of the suction channel is increased through the shielding piece, the circulation area of the suction channel can be increased, the flow speed in the suction channel can be reduced, and sputum or sputum clots or the like with the large size can pass through the suction channel; when the area of the suction channel is reduced through the shielding piece, the circulation area of the suction channel is reduced, the flow speed in the suction channel is increased, and the discharge efficiency of sputum, sputum clots and the like is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a pulse assembly, an insertion tube assembly and a sputum suction mirror. Background Art

[0002] The sputum suction mirror is a medical device widely used in clinical practice, mainly used to remove sputum from the patient's airway. Usually, the sputum suction mirror is connected to the suction device through a slender tubular structure to suck out the sputum from the airway, thereby helping to keep the airway open. It is often used in the treatment of patients with acute respiratory infections, chronic obstructive pulmonary disease, and postoperative patients.

[0003] When using the suction mirror, especially when the sputum is thick, the sputum discharge efficiency is low, the suction efficiency of the suction mirror decreases, and the sputum cannot be removed smoothly. This will increase the operation time and increase the patient's discomfort. Summary of the invention

[0004] In view of the shortcomings of the above related technologies, the present application provides a pulse assembly, an insertion tube assembly and a suction mirror to solve the above technical problems.

[0005] In a first aspect, the present application provides a pulse assembly for a suction mirror, the suction mirror comprising an insertion tube having a suction channel, the pulse assembly comprising a shielding member and a driving member, the shielding member being disposed on the insertion tube and configured to shield the suction channel to adjust the flow area of ​​the suction channel, the driving member being used to drive the shielding member to change the flow area of ​​the suction channel.

[0006] In a second aspect, the present application provides an insertion tube assembly, comprising the aforementioned pulse assembly and an insertion tube, wherein the insertion tube has a suction channel, and a shielding member is disposed on the insertion tube.

[0007] In a third aspect, the present application provides a sputum suction mirror, comprising an insertion tube assembly and a handle as described above, wherein the insertion tube assembly and the handle are connected, and a shielding member is disposed correspondingly to the handle.

[0008] The technical solution adopted by the present invention can achieve the following beneficial effects: the pulse component is arranged on the insertion tube of the sputum suction mirror, and the medical staff can operate the driving member, thereby driving the shielding member to adjust the flow area of ​​the suction channel. Further, it can increase and decrease the flow area of ​​the suction channel. When the flow rate in the suction channel is the same, when the area of ​​the suction channel is increased by the shielding member, this will increase the flow area of ​​the suction channel and slow down the flow rate in the suction channel to pass a larger volume of sputum or sputum plugs, etc., to avoid the suction channel being blocked by sputum plugs; when the area of ​​the suction channel is reduced by the shielding member, this will reduce the flow area of ​​the suction channel, increase the flow rate in the suction channel, enhance the suction force of the sputum suction mirror, and improve the discharge efficiency of sputum and sputum plugs, etc.

[0009] During this period, medical staff can repeatedly control the driving part, and the working state of the shielding part can be repeatedly and quickly switched, that is, the flow area of ​​the suction channel can be continuously controlled to increase and decrease, so that a rapidly changing pressure fluctuation is formed inside the suction channel, thereby generating a pressure shock, which helps to loosen and clear the sputum plug and improve the suction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 is a schematic structural diagram of an insertion tube and a pulse assembly shown in an exemplary embodiment of the present application; Figure 2 is a cross-sectional schematic diagram of an insertion tube and a pulse assembly shown in an exemplary embodiment of the present application; Figure 3 yes Figure 2 The enlarged view of point a in the figure; Figure 4 is a cross-sectional schematic diagram of an insertion tube and a pulse assembly in another state shown in an exemplary embodiment of the present application; Figure 5 yes Figure 4 The enlarged view of point b in the figure; Figure 6 is a cross-sectional schematic diagram of another insertion tube and pulse assembly shown in an exemplary embodiment of the present application; Figure 7 yes Figure 6 The enlarged view of point c in the figure; Figure 8 is a structural schematic diagram of a sputum suction mirror shown in an exemplary embodiment of the present application; Fig. 9 It is a cross-sectional schematic diagram of a sputum suction mirror shown in an exemplary embodiment of the present application.

[0012] In the figure: 1, suction mirror; 100, pulse assembly; 110, shielding member; 111, pulse chamber; 120, driving member; 121, accommodating chamber; 122, flow channel; 123, cleaning chamber; 124, sealing structure; 125, outlet; 126, puncture structure; 200, insertion tube; 210, suction channel; 220, through hole; 230, mounting portion; 240, insertion portion; 300, insertion tube assembly; 400, handle; 410, electrical connection portion. DETAILED DESCRIPTION

[0013] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0014] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0015] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0016] The present application provides a pulse assembly 100, see Figure 1 as well as Figure 2 The pulse assembly 100 is used for a sputum suction mirror 1. The sputum suction mirror 1 may include an insertion tube 200, and the insertion tube 200 has a suction channel 210. The sputum suction mirror 1 is connected to an external negative pressure source through the insertion tube 200 to suck out the sputum from the airway through the suction channel 210, thereby helping to maintain the patency of the airway, and is often used in the treatment of patients with acute respiratory tract infection, chronic obstructive pulmonary disease, and postoperative patients.

[0017] In order to allow the sputum suction mirror 1 to accurately reach the designated position, a camera module and a lighting module may be provided at the far end of the sputum suction mirror 1. The lighting module can illuminate the front of the insertion tube 200, and the camera module can obtain image information in front of the insertion tube 200, and the image information can be transmitted back to the display device. Medical staff can judge and control the sputum suction mirror 1 to reach the designated position through the image information.

[0018] In the embodiments of this application, please refer to Figure 2 The pulse assembly 100 may include a shielding member 110 and a driving member 120 , and the shielding member 110 and the driving member 120 are drivingly connected.

[0019] See also Figure 2 , the shielding member 110 is disposed on the insertion tube 200 and is configured to shield the suction channel 210 to adjust the flow area of ​​the suction channel 210. Exemplarily, the shielding member 110 can shield the suction channel 210, thereby adjusting the flow area of ​​the suction channel 210. The shielding member 110 can adjust its own position and posture, and the shielding member 110 can partially or completely cover the suction channel 210. For example, when the shielding member 110 is deflected, the projection area of ​​the shielding member 110 in the axial direction of the insertion tube 200 increases, and the effective flow area of ​​the sputum plug equal to the suction channel 210 becomes smaller; conversely, when the shielding member 110 is deflected in the opposite direction, the projection area of ​​the shielding member 110 in the axial direction of the insertion tube 200 decreases, and the effective area of ​​the sputum plug equal to the suction channel 210 increases.

[0020] It is understandable that the shielding member 110 can directly or indirectly change the flow area of ​​the suction channel 210. In one case, the shielding member 110 is located in the suction channel 210, and the position or posture of the shielding member 110 changes, which can directly change the flow area of ​​the suction channel 210. In another case, the shielding member 110 is located outside the suction channel 210, and the shielding member 110 can drive the insertion tube 200 to change the position or posture of the insertion tube 200, which can indirectly change the flow area of ​​the suction channel 210.

[0021] Please continue reading Figure 2 The driving member 120 is used to drive the shielding member 110 to change the flow area of ​​the suction channel 210. Exemplarily, the driving member 120 is disposed at the proximal end of the insertion tube 200 and can be operated by the fingers of the medical staff. Under the control of the driving member 120, the shielding member 110 can change the flow area of ​​the suction channel 210. Further, the medical staff can increase and decrease the flow area of ​​the suction channel 210. When the flow rate of the suction channel 210 is the same, as shown in FIG. Figure 3 As shown, when the area of ​​the suction channel 210 is not blocked by the shielding member 110, the flow area of ​​the suction channel 210 is increased, and the flow rate in the suction channel 210 is slowed down to pass a large volume of sputum or sputum plug, etc., to avoid the suction channel 210 being blocked by the sputum plug; Figure 4 and Figure 5 As shown, when the area of ​​the suction channel 210 is reduced by the shielding member 110, this will reduce the flow area of ​​the suction channel 210, increase the flow rate in the suction channel 210, enhance the suction force of the sputum suction mirror 1, and improve the discharge efficiency of sputum and sputum plugs.

[0022] It is understandable that during this period, medical staff can repeatedly control the driving member 120, and the working state of the shielding member 110 can be repeatedly and quickly switched, that is, the flow area of ​​the suction channel 210 can be continuously controlled to increase and decrease repeatedly, so that the suction channel 210 forms a rapidly changing pressure and flow rate fluctuation inside, thereby generating a pressure shock, which helps to loosen and clear sticky sputum or sputum plugs, etc., and improve the suction efficiency of the insertion tube 200.

[0023] In a more specific embodiment, see Figure 3 The shielding member 110 has a pulse chamber 111, and the driving member 120 has a receiving chamber 121 filled with a first medium. The first medium may be pure water, air, or salt water, etc., and is not limited. The pulse chamber 111 and the receiving chamber 121 are connected, that is, the pulse chamber 111 and the receiving chamber 121 can be connected by a pipe, and the pipe can be built into the tube wall of the insertion tube 200.

[0024] When the driving member 120 moves relative to the insertion tube 200, the first medium can flow from the accommodating chamber 121 into the pulse chamber 111. Figure 3 As shown, the pulse chamber 111 is in an empty state, and the medical staff can press the driving member 120, and the driving member 120 moves relative to the insertion tube 200. Since the accommodating chamber 121 and the pulse chamber 111 are connected, under the action of the pressure difference, this can enable the first medium in the driving member 120 to flow from the accommodating chamber 121 to the pulse chamber 111. At this time, the first medium can act on the shielding member 110, pushing the shielding member 110 to change the flow area of ​​the suction channel 210. For example, Figure 4 and Figure 5 As shown, as more first medium flows into the pulse chamber 111, the pressure of the pulse chamber 111 gradually increases. As the pressure continues to increase, the shielding member 110 moves toward the direction of the suction channel 210 and reduces the flow area of ​​the suction channel 210. This setting can quickly adjust the area of ​​the suction channel 210 by pneumatic or hydraulic means, thereby achieving the effect of quickly and accurately changing the flow area.

[0025] In some other cases, the shielding member 110 may be a sheet-like structure, the shielding member 110 is located in the suction channel 210, and the shielding member 110 can be rotatably arranged relative to the insertion tube 200. The rotation arrangement may be that the shielding member 110 rotates around the radial direction of the insertion tube 200. The shielding member 110 has a connecting end, the connecting end extends out of the suction channel 210, and the driving member 120 drives the connecting end. The medical staff presses the driving member 120, and the driving member 120 drives the shielding member 110 to rotate relative to the insertion tube 200, so that the posture of the shielding member 110 of the sheet-like structure in the suction channel 210 changes. As the position and posture continue to change, the area of ​​the shielding member 110 in the axial direction of the insertion tube 200 continues to increase or decrease, thereby changing the flow area of ​​the suction channel 210, which will not be described in detail here.

[0026] Alternatively, the shielding member 110 can be a rod-shaped structure, and the end of the shielding member 110 is connected to the insertion tube 200, and the movable path of the shielding member 110 intersects or is perpendicular to the axial direction of the insertion tube 200. The two ends of the insertion tube 200 are fixed relative to the handle 400 of the suction mirror 1, and the insertion tube 200 is deformed and bent under the drive of the shielding member 110. And the bending amplitude of the insertion tube 200 is affected by the movable length of the shielding member 110, that is, the bending amplitude of the insertion tube 200 is adjustable. Under the condition of relatively stable flow, this will enable the shielding member 110 to drive the insertion tube 200 to increase its bending amplitude, and the flow area of ​​the suction channel 210 of the insertion tube 200 with increased bending amplitude will be reduced, and the resistance will also increase, and the flow rate can be increased, which is suitable for faster or severe suction scenes. The shielding member 110 can drive the insertion tube 200 to reduce its bending amplitude. The flow area of ​​the suction channel 210 of the insertion tube 200 with reduced bending amplitude increases, the resistance is also reduced or almost 0, and the flow rate can be reduced, which is suitable for a smoother suction scene.

[0027] In the embodiments of this application, please continue to refer to Figure 3, the shielding member 110 is arranged at the mounting portion 230 of the insertion tube 200, and the mounting portion 230 can be a part of the tube section of the insertion tube 200 or a part of the tube wall in the tube section, etc. The mounting portion 230 is located in the handle 400 of the sputum suction mirror 1. Among them, the handle 400 is used for the sputum suction mirror 1 to be held and manipulated by medical staff. The medical staff can change the suction state of the suction channel 210 through the handle 400, and can also drive the insertion tube 200 to be inserted along the specified insertion direction. Exemplarily, the mounting portion 230 of the insertion tube 200 is arranged in the handle 400, and the inner wall of the handle 400 can be against the mounting portion 230, providing a stable and continuous support force for the mounting portion 230 of the insertion tube 200. The shielding member 110 acts on the mounting portion 230. Because the shielding member 110 plays a shielding role, the internal force will be gathered at the position where the insertion tube 200 and the shielding member 110 are connected. On the premise of completing the flow area adjustment function, this can prevent the mounting portion 230 of the insertion tube 200 from being driven to undergo drastic deformation or obvious protrusion, thereby improving the protection capability and safety of the insertion tube 200.

[0028] In addition, in some other cases, see Figure 2 The shielding member 110 is located at the insertion portion 240 of the insertion tube 200, and the insertion portion 240 can be connected to the mounting portion 230 and independently arranged relative to the handle 400. Exemplarily, the shielding member 110 is arranged at the distal end of the insertion tube 200, and the shielding member 110 can adjust the flow area at the distal end of the suction channel 210.

[0029] In the embodiments of this application, please continue to refer to Figure 3 , the shielding member 110 is disposed in the suction channel 210, and under the driving action of the driving member 120, the shielding member 110 can block or open at least part of the suction channel 210. Exemplarily, the shielding member 110 can be an air bag disposed in the suction channel 210, and the first medium of the driving member 120 can be gas. The shielding member 110 is driven by the driving member 120, and the gas enters the shielding member 110, and the volume of the shielding member 110 expands, thereby changing the flow area of ​​the suction channel 210. The shielding member 110 can directly change the flow area of ​​the suction channel 210, thereby improving the response speed of the pulse assembly 100.

[0030] Preferably, the inner wall of the suction channel 210 may also be provided with a diaphragm, the surface of the diaphragm is smooth, and the diaphragm covers the side of the shielding member 110 close to the central axis of the insertion tube 200, and sputum and sputum plugs can flow in the smooth diaphragm. The diaphragm setting can improve the passability of the insertion tube 200, so that the shielding member 110 can have a smooth transition, so that sputum and sputum plugs can be discharged more easily.

[0031] It is understandable that if the sputum is relatively thin and the amount is small, the shielding member 110 may not block or only block a small area of ​​the suction channel 210, thereby reducing the flow rate in the suction channel 210, slowing down the suction force, and avoiding unnecessary damage to the respiratory mucosa. When the sputum is thick and accumulated in large quantities, the driving member 120 may drive the shielding member 110 to block the suction channel 210 over a large area, quickly clear the sputum at the maximum flow rate, and ensure that the patient's respiratory tract is unobstructed. Among them, the large area and the small area can be the area of ​​the suction channel 210 blocked by the shielding member 110. For example, the area of ​​the suction channel 210 blocked by the shielding member 110 accounts for 30% or more of the suction channel 210, which is a large area blocking; the area of ​​the suction channel 210 blocked by the shielding member 110 accounts for less than 30% of the suction channel 210, which is a small area blocking, and there are no excessive restrictions here.

[0032] In another embodiment, the shielding member 110 is disposed outside the insertion tube 200, and under the driving action of the driving member 120, the shielding member 110 can squeeze or release the tube wall of the insertion tube 200. When the shielding member 110 squeezes the tube wall of the insertion tube 200, the tube cavity becomes smaller, reducing the flow area of ​​the suction channel 210. For example, when liquid is sucked from fragile tissue, the shielding member 110 can be used by the driving member 120 to prevent or slightly squeeze the tube wall of the insertion tube 200, ensuring a smooth and safe suction process. When the sputum is thick and accumulated in large quantities, the shielding member 110 squeezes the insertion tube 200, so that the flow rate in the insertion tube 200 increases, and the sputum is quickly cleared at the maximum flow rate to ensure that the patient's respiratory tract is unobstructed. This can eliminate the interference of the shielding member 110 with the suction channel 210, increase the maximum flow area, and ensure that the sputum plug can be discharged smoothly.

[0033] Furthermore, the shielding member 110 is disposed on the outer side of the insertion tube 200, and the outer side of the shielding member 110 is adapted to abut against the inner wall of the handle 400. When the flow area of ​​the suction channel 210 needs to be adjusted, the shielding member 110 squeezes the insertion tube 200 inward. The inner wall of the handle 400 and the outer side of the shielding member 110 are tightly abutted, providing a support point for the shielding member 110. In other words, the support force provided by the handle 400 to the shielding member 110 can be used as a force for the shielding member 110 to squeeze the insertion tube 200, thereby avoiding displacement and deformation of the shielding member 110 itself, which affects the adjustment effect. This can achieve fine control of the suction flow rate and meet the needs of different patients and different suction scenarios. In another embodiment, the shielding member 110 can be built into the tube wall of the insertion tube 200. The shielding member 110 will not interfere with the suction channel 210, thereby increasing the maximum flow area and improving the response speed, which will not be elaborated here.

[0034] Preferably, the shielding member 110 is distributed along the circumference of the insertion tube 200. When the shielding member 110 is working, it can be adjusted along the four sides of the insertion tube 200 simultaneously in the direction of the central axis, so as to avoid irregular deformation of the suction channel 210 and improve the force uniformity of the insertion tube 200. For example, the shielding member 110 is arranged in the suction channel 210, and the inner wall of the suction tube can provide a supporting connection for the shielding member 110, thereby improving the stability of the shielding member 110. Alternatively, the shielding member 110 is arranged outside the suction tube, and the shielding member 110 can uniformly apply force inward to the insertion tube 200 along the four sides, eliminating the risk of uneven force damaging the insertion tube 200, which helps to improve the efficiency of sputum suction and reduce the risk of sputum residue and blockage caused by irregular deformation of the suction channel 210.

[0035] In the embodiments of this application, please continue to refer to Figure 3 , the insertion tube 200 is provided with a through hole 220 connected to the suction channel 210, and the through hole 220 is located in the driving member 120. The through hole 220 can switch the suction state of the suction channel 210. For example, if the medical staff only gently presses the elastic pressing part or covers the through hole 220, this can close the through hole 220. Since the suction channel 210 is connected to the through hole 220, after the through hole 220 is closed, the suction function of the suction channel 210 is immediately started, and operations such as suctioning sputum begin. At this time, the medical staff can synchronously drive the driving member 120 to change the flow area of ​​the suction channel 210. When operating, the medical staff does not need to move the fingers, and only operates one driving member 120 to complete the switch of the suction channel 210 and the adjustment of the flow area, thereby improving the portability of the operation.

[0036] Please continue to read Figure 3 , the through hole 220 is used to switch the suction state of the suction channel 210, such as the suction state and the no-load state. The medical staff can close the through hole 220, and the negative pressure of the suction channel 210 acts on the distal end of the insertion tube 200 to realize the suction operation. When the medical staff opens the through hole 220, the through hole 220 is connected to the outside world. Compared with the distal end of the suction channel 210, the through hole 220 is closer to the proximal end of the suction channel 210, and the negative pressure is provided by the negative pressure device connected to the proximal end of the suction channel 210. Therefore, the negative pressure can act directly on the through hole 220, and the negative pressure will not act on the distal end of the insertion tube 200, thereby improving the operability of operating the insertion tube 200.

[0037] It is understandable that, because the through hole 220 is located in the driving member 120, the medical staff can operate the driving member 120 only after closing the through hole 220. This can ensure that the driving member 120 can act on the suction channel 210 to start the suction operation, thereby improving the operation effect of the driving member 120. This can eliminate the situation where the driving member 120 is opened by mistake, such as when the suction channel 210 is not opened, thereby improving the suction safety.

[0038] In one embodiment of the present application, please continue to refer to Figure 3 The driving member 120 has a flow channel 122, which is connected to the through hole 220. The flow channel 122 can extend to the outer wall of the handle 400, which can facilitate the medical staff to hold and operate. The medical staff can easily hold and manipulate the flow channel 122, such as the through hole 220 is connected to the outside through the flow channel 122, so that the suction channel 210 stops suction. The medical staff closes the through hole 220 by closing the flow channel 122, so that negative pressure is generated on the distal side of the suction channel 210. The wall body surrounding the flow channel 122 is elastic. Due to the elasticity of the wall body, the wall body can be deformed during the pressing process, and the surrounding walls are close to the central axis of the flow channel 122, which further closes the flow channel 122, and the operation is simple and efficient. In addition, the elastic wall body is convenient for medical staff to press, avoiding excessive strength of the wall body, which hinders the medical staff from driving the driving member 120.

[0039] In another embodiment, please refer to Figure 3 The driving member 120 has a cleaning chamber 123, and the cleaning chamber 123 is filled with a second medium, which can be physiological saline, purified water, etc., and is not limited. The cleaning chamber 123 is connected to the distal side of the suction channel 210, and the second medium can flow from the cleaning chamber 123 to the distal side of the suction channel 210, and the second medium can enter the suction channel 210 from the distal side of the suction channel 210. When the driving member 120 moves relative to the insertion tube 200, the cleaning chamber 123 can be squeezed to drive the second medium to flow from the cleaning chamber 123 to the distal side of the insertion tube 200. Exemplarily, when the medical staff presses the driving member 120, the driving member 120 is squeezed and drives the shielding member 110. At the same time, the cleaning cavity 123 is also squeezed and the second medium is discharged. The second medium can flow from the cleaning cavity 123 to the distal side of the insertion tube 200. The second medium can dilute the sputum, sputum plugs, etc. in the suction channel 210 or outside the insertion tube 200, and promote the discharge of sputum and sputum plugs.

[0040] It is understandable that, in another case, the hardness of the cavity wall forming the cleaning cavity 123 may be higher than that of the cavity wall forming the accommodating cavity 121. Furthermore, when the medical staff presses the driving member 120, the cavity wall forming the accommodating cavity 121 is deformed first, and the first medium in the accommodating cavity 121 drives the shielding member 110. And after the driving member 120 is squeezed and drives the shielding member 110 to the specified position, the cavity wall forming the cleaning cavity 123 begins to deform, and the second medium can flow from the cleaning cavity 123 to the distal side of the insertion tube 200. The second medium can dilute the sputum, sputum plug, etc. in the suction channel 210 or outside the insertion tube 200, and promote the discharge of sputum and sputum plug. Under the influence of different first and second media, the relative position and hardness of the cleaning cavity 123 and the accommodating cavity 121, etc., the first medium and the second medium can flow out simultaneously or at intervals, so that the shielding effect and the cleaning effect can be implemented on the insertion tube 200 simultaneously or intermittently.

[0041] In the embodiments of this application, please continue to refer to Figure 3 The cleaning chamber 123 is provided with an outlet 125, which can be connected to the distal end of the suction channel 210, and the outlet 125 is provided with a sealing structure 124. The sealing structure 124 can close the outlet 125, and the sealing structure 124 can prevent the second medium of the cleaning chamber 123 from flowing out, prevent the second medium from leaking when idle or transported, and improve the protection capability of the pulse assembly 100.

[0042] In one embodiment, please refer to Figure 3 , the sealing structure 124 can be a membrane structure, such as an easy-tear film, a membrane flap, etc., and is not limited. When the pressure in the cleaning chamber 123 is greater than or equal to the pressure threshold, the sealing structure 124 opens to allow the second medium to flow out from the outlet 125 to the distal side of the insertion tube 200. The membrane structure fits tightly to the outlet 125 to prevent the second medium in the cleaning chamber 123 from flowing out, thereby ensuring the stability of the internal environment of the cleaning chamber 123 and the overall sealing of the system. This is to prevent external impurities from mixing into the cleaning chamber 123 and to avoid contamination of the second medium. During surgery, medical staff press the drive member 120, the cleaning chamber 123 is squeezed and contracted, and the pressure in the cleaning chamber 123 rises to a pressure threshold greater than or equal to a preset pressure threshold, the membrane structure automatically opens, and the second medium is able to flow smoothly from the outlet 125 to the distal side of the insertion tube 200. For example, during the suction process, when it is detected that the sputum has a high viscosity and needs more second medium for dilution, when the pressure reaches the threshold, the sealing structure 124 opens, and the second medium flows out at an appropriate flow rate to effectively dilute the sputum, while avoiding affecting the normal operation of the pulse component 100 due to poor sealing.

[0043] In another embodiment, see Figure 6 and Figure 7The driving member 120 is provided with a puncture structure 126, such as a puncture needle or a puncture sheet, etc., and is not limited. The puncture structure 126 can move relative to the sealing structure 124, and the sealing structure 124 is located on the moving path of the puncture structure 126. When the puncture structure 126 moves relative to the sealing structure 124, the puncture structure 126 can puncture the sealing structure 124, so that the second medium can flow out from the outlet 125 to the distal side of the insertion tube 200. In the initial state, the sealing structure 124 closes the outlet 125, ensuring the sealing of the cleaning chamber 123 and preventing the second medium from leaking. The medical staff presses the driving member 120, and the driving member 120 drives the puncture structure 126 to move relative to the sealing structure 124. The puncture structure 126 punctures the sealing structure 124, the sealing structure 124 is destroyed, the outlet 125 is opened, and the second medium then flows out from the outlet 125 to the distal side of the insertion tube 200. The puncture structure 126 can quickly and effectively open the outlet 125, so that the second medium can flow out quickly when needed, allowing the second medium to flow out quickly at a large flow rate, thereby ensuring the stability and reliability of the system.

[0044] In addition, in another embodiment, the driving member 120 may be provided with a puncture structure 126, and the sealing structure 124 may also be a membrane structure, and the puncture structure 126 can puncture the membrane structure. The puncture structure 126 and the membrane structure are redundant, and two different settings are used to ensure that the outlet 125 can discharge the second medium in time, which will not be repeated here.

[0045] To achieve the above objectives and other related objectives, the present application provides an insertion tube assembly 300, see Figure 8 and Fig. 9 The insertion tube assembly 300 includes the aforementioned pulse assembly 100 and the insertion tube 200, and the pulse assembly 100 and the insertion tube 200 are connected, so that the insertion tube assembly 300 has the beneficial effects of any of the aforementioned solutions, which will not be repeated here.

[0046] The insertion tube 200 has a suction channel 210, and the shielding member 110 is disposed on the insertion tube 200. The shielding member 110 can increase and decrease the flow area of ​​the suction channel 210. Further, in one case, the shielding member 110 can be disposed on the inner wall of the insertion tube 200, that is, the shielding member 110 is disposed in the suction channel 210, and the position or posture of the shielding member 110 changes, which can directly change the flow area of ​​the suction channel 210. In another case, the shielding member 110 can be disposed on the outer wall of the insertion tube 200, that is, the shielding member 110 can squeeze the tube wall of the insertion tube 200 to change the flow area of ​​the suction channel 210. In another case, the shielding member 110 can be disposed in the arm body of the insertion tube 200, which is not described in detail here.

[0047] In order to achieve the above-mentioned purpose and other related purposes, the present application provides a sputum suction mirror 1, please refer to Figure 8 and Fig. 9 The sputum suction mirror 1 includes the aforementioned insertion tube assembly 300 and the handle 400, and the insertion tube assembly 300 and the handle 400 are connected, so that the sputum suction mirror 1 has the beneficial effects of any of the aforementioned solutions, which will not be repeated here.

[0048] The insertion tube assembly 300 is connected to the handle 400. Further, the insertion tube 200 of the insertion tube assembly 300 is connected to the handle 400, and part of the insertion tube 200 is arranged in the handle 400. The shielding member 110 is arranged corresponding to the handle 400. For example, the shielding member 110 is arranged at the part of the insertion tube 200 located in the handle 400, that is, the installation part of the insertion tube 200 mentioned above. The handle 400 can provide support for the shielding member 110 so that the shielding member 110 can change the flow area of ​​the suction channel 210 of the insertion tube 200. In addition, the handle 400 also includes an electrical connection part 410, which can be connected to other devices, such as a display device, a power supply, etc., which can supply power to the camera module of the sputum suction mirror 1 or transmit signals, so that medical staff can observe the situation at the distal end of the insertion tube 200, thereby improving the operability of the sputum suction mirror 1.

[0049] The pulse assembly 100, the insertion tube 200 and the sputum suction mirror 1 provided by the present application, the pulse assembly 100 is arranged in the insertion tube 200 of the sputum suction mirror 1, and the medical staff can operate the driving member 120, thereby driving the shielding member 110 to adjust the flow area of ​​the suction channel 210. Further, it can increase and decrease the flow area of ​​the suction channel 210. When the flow rate in the suction channel 210 is the same, when the area of ​​the suction channel 210 is increased by the shielding member 110, this will increase the flow area of ​​the suction channel 210, slow down the flow rate in the suction channel 210, so as to pass a large volume of sputum or sputum plug, etc., and avoid the suction channel 210 being blocked by the sputum plug; when the area of ​​the suction channel 210 is reduced by the shielding member 110, this will reduce the flow area of ​​the suction channel 210, increase the flow rate in the suction channel 210, enhance the suction force of the sputum suction mirror 1, and improve the discharge efficiency of sputum and sputum plugs.

[0050] During this period, medical staff can repeatedly control the driving member 120, and the working state of the shielding member 110 can be repeatedly and quickly switched, that is, the flow area of ​​the suction channel 210 can be continuously controlled to increase and decrease, so that a rapidly changing pressure fluctuation is formed inside the suction channel 210, thereby generating a pressure shock, which helps to loosen and clear the sputum plug and improve the suction efficiency.

[0051] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0052] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0053] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pulse assembly for a sputum suction mirror, characterized in that: The suction mirror comprises an insertion tube having a suction channel, and the pulse assembly comprises: a shielding member disposed on the insertion tube and configured to shield the suction channel to adjust a flow area of ​​the suction channel; and A driving member, wherein the driving member is used to drive the shielding member to change the flow area of ​​the suction channel.

2. The pulse assembly according to claim 1, characterized in that The shielding member has a pulse cavity, the driving member has a accommodating cavity filled with a first medium, the pulse cavity and the accommodating cavity are connected, and when the driving member moves relative to the insertion tube, the first medium can flow from the accommodating cavity into the pulse cavity.

3. The pulse assembly according to claim 2, characterized in that: The shielding member is disposed in the suction channel, and under the driving action of the driving member, the shielding member can shield or open at least a portion of the suction channel; And / or, the shielding member is arranged outside the insertion tube, and under the driving action of the driving member, the shielding member can squeeze or release the tube wall of the insertion tube.

4. The pulse assembly according to claim 3, characterized in that The shielding member is arranged on the mounting portion of the insertion tube, and the mounting portion is located in the handle of the sputum suction mirror.

5. The pulse assembly according to claim 4, characterized in that The shielding member is arranged on the outer side surface of the insertion tube, and the outer side surface of the shielding member is suitable for abutting against the inner wall of the handle; And / or, the shielding members are distributed along the circumference of the insertion tube.

6. The pulse assembly according to claim 2, characterized in that: The insertion tube is provided with a through hole communicating with the suction channel, and the through hole is located in the driving member; wherein, The driving member has a flow channel, the flow channel is connected to the through hole, and the wall body surrounding the flow channel is elastic.

7. The pulse assembly according to claim 1, characterized in that The driving member has a cleaning chamber filled with a second medium, and the cleaning chamber is connected to the distal side of the suction channel. When the driving member moves relative to the insertion tube, the cleaning chamber can be squeezed to drive the second medium to flow from the cleaning chamber to the distal side of the insertion tube.

8. The pulse assembly according to claim 7, characterized in that The cleaning chamber is provided with an outlet, which can be connected to the distal end of the suction channel, and the outlet is provided with a sealing structure; wherein, The sealing structure is a membrane structure. When the pressure in the cleaning chamber is greater than or equal to a pressure threshold, the sealing structure opens to allow the second medium to flow out from the outlet to the distal end of the insertion tube. And / or, the driving member is provided with a puncture structure, which can move relative to the sealing structure, and the sealing structure is located on the moving path of the puncture structure. When the puncture structure moves relative to the sealing structure, the puncture structure can puncture the sealing structure so that the second medium can flow out from the outlet to the distal side of the insertion tube.

9. An insertion tube assembly, characterized in that: The invention comprises a pulse assembly as claimed in any one of claims 1 to 8 and an insertion tube, wherein the insertion tube has a suction channel, and the shielding member is arranged on the insertion tube.

10. A sputum suction mirror, characterized in that: It comprises the insertion tube assembly and the handle as claimed in claim 9, wherein the insertion tube assembly is connected to the handle, and the shielding member is arranged corresponding to the handle.

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