A sputum aspirating assembly, a sputum aspirating tube and a sputum aspirating scope

Abstract

The present invention discloses a sputum suction assembly, a sputum suction tube and a sputum suction mirror, belonging to the technical field of endoscopes. The sputum suction assembly includes a tube body and a handle housing, and the tube body is disposed at the installation passage inside the handle housing; a middle tube section of the tube body is bent to form an adjustment tube section, and a part of the adjustment tube section extends out of the handle housing from a first opening formed on the side wall of the handle housing. The adjustment tube section has a pressing part, and the pressing part is located outside the handle housing; an air hole communicating with the external environment is provided on the tube wall of the adjustment tube section. The sputum suction assembly further includes a matching part located on the tube body or the handle housing. The arrangement direction of the air hole and the pressing part is a first direction. By pressing the pressing part along the first direction, the adjustment tube section can be pushed to deform so that the air hole fits with the matching part, and the matching part cuts off the communication relationship between the air hole and the external environment. The sputum suction assembly provided by this application can prevent medical waste liquids such as sputum from flowing out through the air hole, and avoid the possibility of cross-infection.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and particularly relates to a sputum suction assembly, a sputum suction tube and a sputum suction mirror. Background Art

[0002] During the use of a sputum suction mirror or a sputum suction tube, one end of the tube body is inserted into the position in the human body where sputum needs to be suctioned, and the other end is connected to a negative pressure source. The negative pressure source sucks the other end of the tube body, so as to suck the sputum out of the human body. An air hole is provided on the tube body, and the air hole communicates the inside of the tube body with the external environment. The operator blocks the air hole, and the negative pressure source can suck the sputum in the tube body. When the operator removes the finger, the inside of the tube body communicates with the external environment, and the negative pressure source cannot suck the sputum, and the suction effect disappears.

[0003] However, since the operator directly blocks the air hole, during the sputum suction process, the sputum is likely to contaminate the operator's gloves, and there is a possibility of cross-infection.

[0004] In the related art, for the sputum suction tube disclosed in the Chinese patent document with the publication number CN107303398A, by arranging a baffle inside the tube body, and the baffle is located below the air hole, it can effectively prevent medical waste from overflowing from the air hole during the suction of medical waste, contaminating the operator's thumb, causing cross-infection, and being safer. However, this structure will increase the size of the tube body and the cost of the sputum suction tube. At the same time, when the air hole is released, there is a probability that the medical waste will flow back, and the medical waste will flow above the baffle. When the operator blocks the air hole next time, it will contaminate the operator's thumb. Summary of the Invention

[0005] The purpose of the present application is to provide a sputum suction assembly, a sputum suction tube and a sputum suction mirror to solve the above technical problems existing in the prior art.

[0006] The present application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a sputum suction assembly, including a tube body and a handle housing. The tube body has a proximal end for connecting to a negative pressure source and a distal end for sucking a target substance. The tube body passes through an installation channel in the handle housing. A middle tube section of the tube body is bent to form an adjustment tube section, and a part of the adjustment tube section extends out of the handle housing from a first opening provided on the side wall of the handle housing. The adjustment tube section has a pressing part, and the pressing part is located outside the handle housing. An air hole communicating with the external environment is provided on the tube wall of the adjustment tube section. The sputum suction assembly further includes a matching part, and the matching part is located on the tube body or the handle housing. The arrangement direction of the air hole and the pressing part is a first direction. Pressing the pressing part along the first direction can push the adjustment tube section to deform so that the air hole fits with the matching part, and the matching part cuts off the communication relationship between the air hole and the external environment.

[0008] In a second aspect, an embodiment of the present application provides a sputum suction tube, which includes the sputum suction assembly provided in the embodiment of the first aspect.

[0009] In a third aspect, an embodiment of the present application provides a sputum suction mirror, which includes the sputum suction assembly provided in the embodiment of the first aspect, and further includes an insertion tube and a camera module. The insertion tube is installed at the distal end of the tube body and is in communication with the tube body, and the camera module is installed at the distal end of the insertion tube.

[0010] The technical solution provided by the present application can achieve the following beneficial effects:

[0011] In the present application, the middle tube section of the tube body is bent to form an adjustment tube section, and part of the adjustment tube section is exposed outside the handle, which is convenient for the operator to control the adjustment tube section; the pressing part and the large air hole are both arranged on the adjustment tube section, and the two are arranged along the first direction. When the pressing part is pressed along the first direction, the adjustment tube section can be pushed to deform so as to drive the large air hole to move, so that the large air hole fits with the matching part, blocking the communication relationship between the large air hole and the external environment. The large air hole and the pressing part are independently arranged, thereby preventing medical waste liquids such as sputum from flowing out from the large air hole to contaminate the operator's gloves and fingers, and avoiding the possibility of cross-infection.

[0012] At the same time, only some structures of the handle shell and the tube body are improved, and the general shapes of the tube body and the handle shell do not change significantly, which has little impact on the production and manufacturing process of the existing sputum suction assembly, and can well control the production cost of the sputum suction assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is a schematic diagram of the overall structure of the sputum suction assembly provided by some embodiments of the present application Figure 1 ;

[0015] Figure 2 is a schematic diagram of the overall structure of the sputum suction assembly provided by some embodiments of the present application Figure 2 ;

[0016] Figure 3 is a cross-section of the sputum suction assembly provided by some embodiments of the present application Figure 1 ;

[0017] Figure 4 is the A-detail view of the present application regarding Figure 3 ;

[0018] Figure 5 Schematic diagram of the structure of the tube body provided by some embodiments of the present application Figure 1 ;

[0019] Figure 6 Schematic diagram of the structure of the tube body provided by some embodiments of the present application Figure 2 ;

[0020] Figure 7 Cross-section of the sputum suction assembly provided by some embodiments of the present application Figure 2 ;

[0021] Figure 8 Regarding the present application Figure 7 Detail at position B Figure 1 ;

[0022] Figure 9 Regarding the present application Figure 7 Detail at position B Figure 2 ;

[0023] Figure 10 Schematic diagram of the structure of the handle provided by some embodiments of the present application Figure 1 ;

[0024] Figure 11 Schematic diagram of the structure of the handle provided by some embodiments of the present application Figure 2 ;

[0025] Figure 12 Schematic diagram of the structure of the sputum suction mirror provided by some embodiments of the present application;

[0026] Figure 13 Regarding the present application Figure 12 Detail diagram at position C.

[0027] In the figure: 100 - tube body, 110 - adjustable tube section, 111 - pressing part, 112 - large air hole, 113 - first sub-tube section, 114 - second sub-tube section, 115 - first connection port, 116 - second connection port, 200 - handle shell, 210 - installation channel, 220 - first opening, 300 - mating part, 310 - docking hole, 400 - first limiting part, 500 - second limiting part, 510 - guiding surface, 600 - third limiting part, 700 - fixing structure, 800 - fourth limiting part, 910 - insertion tube, 920 - negative pressure joint, 930 - electrical joint, 940 - camera module. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0029] In the specification and claims, "and / or" means at least one of the connected objects. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0030] In the embodiments of the present application, "proximal end" and "distal end" refer to the relative distances of the endoscope and its accessories from the user in the usage environment. Among them, 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".

[0031] An embodiment of the present application provides a sputum suction assembly. Referring to Figures 1 to 4 、 Figures 7 to 9 as shown, the sputum suction assembly includes a tube body 100 and a handle housing 200.

[0032] The tube body 100 has a proximal end for connecting to a negative pressure source and a distal end for sucking target substances. Both ends of the tube body 100 are open. The distal end is the end of the sputum suction assembly away from the operator during use, and the proximal end is the end of the sputum suction assembly close to the operator during use. During use, the negative pressure source is turned on to suck the inside of the tube body 100. Target substances, such as medical waste liquids like sputum, enter the tube body 100 from the distal end of the tube body 100 and are sucked out of the human body under the suction action of the negative pressure source.

[0033] The tube body 100 is disposed through the installation channel 210 inside the handle housing 200. The handle housing 200 is sleeved outside the tube body 100. The handle housing 200 can limit the position of the tube body 100 in the circumferential direction of the tube body 100, so that the relative position between the tube body 100 and the handle housing 200 is stable, and the two can move synchronously, facilitating the operator to adjust the position of the tube body 100 by adjusting the handle housing 200. The inside of the handle housing 200 is hollow and forms an installation channel 210. The installation channel 210 is a space for installing the tube body 100. Referring to Figure 10 and Figure 11 as shown, the installation channel 210 is defined inside the handle housing 200 by structures such as its inner wall or protrusions installed on its inner wall, thereby restricting the position of the tube body 100 in the circumferential direction of the tube body 100.

[0034] The tube body 100 can be deformed under an external force. The middle tube section of the tube body 100 is bent to form an adjustment tube section 110, and a part of the adjustment tube section 110 extends out of the handle housing 200 from a first opening 220 formed on the side wall of the handle housing 200. The middle tube section of the tube body 100 refers to the tube section except for the distal end and the proximal end of the tube body 100, and does not specifically refer to the tube section at the midpoint position of the tube body 100. The first opening 220 is located on the side wall of the handle housing 200 and communicates the inside and the outside of the handle housing 200. The adjustment tube section 110 has a pressing part 111, and the pressing part 111 is located outside the handle housing 200 to facilitate the operator to control the pressing part 111. Refer to Figure 1 and Figure 2 As shown, the pressing part 111 is actually a part of the adjustment tube section 110. In the drawings, the approximate position of the pressing part 111 is schematically shown by a dashed line.

[0035] The tube wall of the adjustment tube section 110 is provided with an air hole 112 communicating with the external environment. The air hole 112 can communicate the inside of the tube body 100 with the external environment, so as to relieve the negative pressure environment inside the tube body 100 and end the suction effect of the negative pressure source. The arrangement direction of the air hole 112 and the pressing part 111 is the first direction. The sputum suction assembly further includes a matching part 300, and the matching part 300 is located on the handle housing 200 or the tube body 100.

[0036] Pressing the pressing part 111 along the first direction can push the adjustment tube section 110 to deform so that the air hole 112 fits with the matching part 300, and the matching part 300 cuts off the communication relationship between the air hole 112 and the external environment. After the pressing part 111 is pressed, the adjustment tube section 110 is deformed by the force, and the air hole 112 located on the adjustment tube section 110 changes its position accordingly. In this way, the air hole 112 can be made to fit on the surface of the matching part 300, and the matching part 300 is used to seal the air hole 112, so that the inside of the tube body 100 can be kept sealed, and the negative pressure source can suck the inside of the tube body 100.

[0037] The air hole 112 and the pressing part 111 are independently arranged, which can prevent the operator from being polluted by the medical waste liquid overflowing from the air hole 112 when controlling the pressing part 111. At the same time, the air hole 112 and the pressing part 111 are arranged along the force application direction of the pressing part 111, so that the air hole 112 can change its position following the pressing of the pressing part 111, ensuring that the air hole 112 can smoothly fit at the matching part 300. At the same time, during the continuous force application process of the pressing part 111, in the first direction, the air hole 112 can also be continuously stressed, so as to ensure the fitting stability between the air hole 112 and the matching part 300.

[0038] Compared with the prior art, in the present application, by changing the shape of the tube body 100 and altering the position of the large air hole 112, the operation means of plugging the large air hole 112 by pressing the large air hole 112 in the prior art is changed to the operation means of plugging the large air hole 112 by pressing the pressing portion 111. This changes the contact position between the operator and the tube body 100, thereby avoiding contamination. At the same time, it does not increase the complexity of controlling the sputum aspiration assembly. The aspiration effect inside the tube body 100 can still be controlled by directly pressing, which is convenient for operation.

[0039] Meanwhile, the structure of the sputum aspiration assembly provided in the embodiments of the present application does not change much compared with the existing sputum aspiration products. The general shapes of the tube body 100 and the handle shell 200 do not change significantly, and no delicate structures are provided on the tube body 100 and the handle shell 200. This has little impact on the production and manufacturing process of the existing sputum aspiration assembly, and the production cost of the sputum aspiration assembly can be well controlled.

[0040] The cost and selling price of existing sputum aspiration products are already at a low level, and the structure and principle of sputum aspiration products are not complex. If the structure of the sputum aspiration assembly is overly complicated, it will lead to a significant increase in the cost of the sputum aspiration assembly, which is not conducive to the sale of sputum aspiration products. Therefore, in the embodiments provided in the present application, by bending the tube body 100 and changing the setting position of the large air hole 112, it is possible to avoid contamination, maintain the operational convenience of the sputum aspiration assembly, and at the same time control the cost of the sputum aspiration assembly to avoid the problem of excessive product cost.

[0041] After the adjustment tube section 110 is bent, it passes through the first opening 220 in the installation channel 210 in the handle shell 200 and extends to the outside of the handle shell 200. Both ends of the adjustment tube section 110 are located in the installation channel 210. Therefore, the adjustment tube section 110 is in a folded and circuitous state. When the negative pressure source performs aspiration, the moving path of the medical waste liquid in the tube body 100 is not a straight line but a circuitous movement along with the circuitous state of the adjustment tube section 110.

[0042] In some specific embodiments, the adjustment tube section 110 can be selected to have a structure with a certain elasticity and hardness. The adjustment tube section 110 can maintain a preset shape. At the same time, it can also deform accordingly when subjected to pressure, and can reset after the pressure disappears.

[0043] In some preferred embodiments of the present application, the adjustment tube section 110 includes a first sub-tube section 113 and a second sub-tube section 114 that are connected in sequence and are bent. Referring to Figure 8 and Figure 9 as shown, both the first sub-tube section 113 and the second sub-tube section 114 have one end located in the installation channel 210 and the other end exposed outside the handle shell 200 and are connected.

[0044] There are tube walls close to each other between the first sub-tube section 113 and the second sub-tube section 114. A first connection port 115 is provided on the tube wall of the first sub-tube section 113 close to the second sub-tube section 114, and a second connection port 116 is provided on the tube wall of the second sub-tube section 114 close to the first sub-tube section 113. Both the first connection port 115 and the second connection port 116 are arranged closer to the installation channel 210 relative to the pressing part 111, and they are close to each other.

[0045] When the communication between the large air hole 112 and the external environment is blocked, that is, when the large air hole 112 is in contact with the mating part 300, the first connection port 115 and the second connection port 116 are docked and connected. It can be understood that the docking connection means that the two connection ports are docked and connected. Docking means that the two connection ports approach and fit with each other, so that the connection ports of the connecting pipe are connected.

[0046] The two connection ports are docked and connected to each other, and both are arranged closer to the installation channel 210 relative to the pressing part 111 exposed outside the handle shell 200. By using the connection of the two connection ports, the flow path of the medical waste liquid in the tube body 100 can be reduced, so that the medical waste liquid can quickly move from the distal end to the proximal end of the tube body 100, and it is also more convenient for the negative pressure source to suck the medical waste liquid located at the distal end of the tube body 100.

[0047] In some embodiments provided by the present application, the first connection port 115 and the second connection port 116 are always docked and connected, regardless of whether the large air hole 112 is in contact with the mating part 300 and regardless of whether the negative pressure source can suck the inside of the tube body 100. In other embodiments of the present application, when the pressing part 111 is squeezed, the first connection port 115 and the second connection port 116 will also change with the position change of the adjustment tube section 110. During the process of squeezing the pressing part 111, the first connection port 115 and the second connection port 116 are docked and connected.

[0048] The large air hole 112 can be provided on most of the tube walls of the adjustment tube section 110, as long as it satisfies that the large air hole 112 and the pressing part 111 are arranged in the first direction. According to the setting position of the large air hole 112, the position of the mating part 300 is determined.

[0049] In some embodiments of the present application, the mating part 300 is a part of the tube wall of the adjustment tube section 110, and the large air hole 112 is directly blocked by using a part of the tube wall of the adjustment tube section 110, without additionally providing the mating part 300, which is more beneficial to simplifying the structure of the sputum suction assembly.

[0050] In some specific embodiments, refer to Figure 3 and Figure 4 As shown, the mating part 300 and the large air hole 112 are respectively located at two mutually close tube walls of the adjustment tube section 110 and are arranged in the second direction, and the second direction is perpendicular to the first direction.Figure 3 and Figure 4 In Figure 4 , the direction corresponding to the y-axis is the first direction, and the direction corresponding to the x-axis is the second direction.

[0051] The adjusting pipe section 110 is bent, and since both ends of the adjusting pipe section 110 are located in the installation channel 210, after the adjusting pipe section 110 is bent, there are pipe walls that are close to each other on its inner side, that is, the pipe walls corresponding to the first connection port 115 and the second connection port 116 in the above embodiment.

[0052] When pressing the pressing portion 111 in the first direction, the matching portion 300 and the large air hole 112 can move synchronously in the first direction, and the large air hole 112 and the matching portion 300 can approach each other in the second direction, so that the large air hole 112 fits to the position of the matching portion 300.

[0053] The pipe walls where the large air hole 112 and the matching portion 300 are located approach each other, providing a basic condition for the large air hole 112 to fit to the position of the matching portion 300. During the process of the pressing portion 111 moving in the first direction, the entire adjusting pipe section 110 is squeezed and deformed, which can drive the large air hole 112 and the matching portion 300 to approach each other in the second direction, so that the large air hole 112 and the matching portion 300 fit together to seal the large air hole 112.

[0054] By restricting the position and bending shape of the adjusting pipe section 110, when pressing the pressing portion 111 in the first direction, the large air hole 112 and the matching portion 300 can fit together. In some embodiments, before being squeezed, there are parts of the pipe walls on the inner side of the bending of the adjusting pipe section 110 that are in contact with each other, and the large air hole 112 and the matching portion 300 are located above the part of the pipe wall in contact. By squeezing the adjusting pipe section 110, the adjusting pipe section 110 moves downward and deforms, and restricted by the installation channel 210, as shown in Figure 5 and Figure 6 , the parts of the adjusting pipe section 110 in contact with each other increase, so that the large air hole 112 and the matching portion 300 fit together. Figure 5 and Figure 6 In Figure 6 , the x-axis represents the second direction, and the y-axis represents the first direction.

[0055] In some preferred embodiments, a docking hole 310 is further provided in a part of the tube wall of the adjustment tube section 110 corresponding to the fitting part 300. When the large air hole 112 is in contact with the fitting part 300, the large air hole 112 is docked and communicated with the docking hole 310, thereby reducing the moving path of the medical waste liquid in the tube body 100. In this structure, the docking hole 310 has the same function as the large air hole 112, and both can play the role of communicating with the atmospheric environment. At the same time, they can also be in contact with the tube wall around each other to achieve sealing. The large air hole 112 and the docking hole 310 are equivalent to the first connection port 115 and the second connection port 116 in one of the above embodiments. During the process of sealing the large air hole 112, a shorter suction path for the medical waste liquid is formed at the same time.

[0056] In some embodiments of the present application, the sputum suction assembly further includes a plurality of limiting members, and the limiting members are installed on the handle housing 200. The limiting members are used to limit the bending shape of the adjustment tube section 110, so that when the adjustment tube section 110 is squeezed, it can smoothly deform along the preset deformation path, so as to smoothly block the large air hole 112.

[0057] Reference Figure 4 As shown, the sputum suction assembly includes a first limiting member 400. The first limiting member 400 is fixed to the handle housing 200, and the adjustment tube section 110 is wound around the first limiting member 400. The first limiting member 400 is located between the pressing part 111 and the large air hole 112. When the pressing part 111 is pressed in the first direction, the pressing part 111 gradually approaches the first limiting member 400, and the gap between the adjustment tube section 110 and the first limiting member 400 in the first direction is reduced until the large air hole 112 fits to the mating part, and the first limiting member 400 prevents the adjustment tube section 110 from moving further in the first direction. The first limiting member 400 limits the movement of the adjustment tube section 110 to prevent the adjustment tube section 110 from moving too far, resulting in the separation of the large air hole 112 and the fitting part 300 after they are fitted.

[0058] In some embodiments, the large air hole 112 can be provided on the tube wall of a part of the adjustment tube section 110 above the first limiting member 400, and the first limiting member 400 is used as the fitting part 300. When the pressing part 111 is squeezed, the large air hole 112 is directly squeezed to the first limiting member 400 to seal the large air hole 112. However, in such a layout, the distance between the large air hole 112 and the pressing part 111 is relatively close, and there is a risk of contamination.

[0059] And / or, the sputum suction assembly further includes a second limiting member 500. The second limiting member 500 is located in the first direction and at a position of the installation channel 210 away from the first opening 220. Two guiding surfaces 510 are provided on the surface of the second limiting member 500 close to the first opening 220. The second limiting member 500 is located Figure 4At the lower position shown, the two guiding surfaces 510 respectively correspond to partial pipe segments at both ends of the adjusting pipe segment 110. When the pressing part 111 is pressed in the first direction, the partial adjusting pipe segment 110 can move towards the second limiting member 500 and fit onto the guiding surface 510, and the guiding surface 510 can guide the partial adjusting pipe segment 110 to move axially along the installation channel 210 in a direction away from the second limiting member 500.

[0060] During the process of squeezing the adjusting pipe segment 110, the entire adjusting pipe segment 110 moves towards the inside of the handle housing 200. The guiding surface 510 can guide the movement of the adjusting pipe segment 110, so as to leave some space below the pressing part 111 for the continuous movement of the adjusting pipe segment 110, thereby enabling the position of the mutually fitting pipe walls on the adjusting pipe segment 110 to be changed, and realizing the sealing of the large air hole 112.

[0061] Figure 4 In [description], the large air hole 112 is in communication with the atmospheric environment, and the adjusting pipe segment 110 has not been squeezed yet. At this time, there is a gap between the adjusting pipe segment 110 and the guiding surface 510, which is represented by the letter d. This gap is the gap through which the entire adjusting pipe segment 110 can move towards the inside of the handle housing 200.

[0062] In some embodiments, the second limiting member 500 can be installed inside the handle housing 200. Referring to Figure 4 shown, the position of the pipe body 100 is restricted. In other embodiments, the second limiting member 500 can also be a part of the housing of the handle housing 200. Referring to Figure 5 shown, and the outer surface of the second limiting member 500 can be recessed, which is convenient for the operator to catch the finger to judge the position of the large air hole 112 inside the handle housing 200, and is more convenient for pressing the pressing part 111 to determine the pressing direction. In addition, as a part of the handle housing 200, the other housing connected to the second limiting member 500 adaptively changes according to its position to be close to the pipe body 100, reducing the overall structure of the handle housing 200 and omitting the unnecessary space inside the handle housing 200.

[0063] And / or, the sputum suction assembly further includes two third limiting members 600 arranged axially along the installation channel 210. Referring to Figure 4 shown, the third limiting members 600 are fixed to the handle housing 200. The two third limiting members 600 clamp both sides of the bent adjusting pipe segment 110, and the distance between the two third limiting members 600 along the axial direction of the installation channel 210 is less than twice the outer diameter size of the adjusting pipe segment 110, so as to squeeze the adjusting pipe segment 110, making two side wall regions of the bent adjusting pipe segment 110 abut against each other tightly.

[0064] The distance between the two third limit members 600 is small, and the adjustment pipe section 110 between the two third limit members 600 can only be squeezed and deformed to adapt to the gap between the two third limit members 600, so as to ensure that the inner tube walls of the adjusted pipe section 110 after bending can fit together.

[0065] In some other embodiments of the present application, the matching part 300 can also be a structure independent of the handle shell 200 and the pipe body 100. Refer to Figures 7 to 9 As shown, the matching part 300 is fixed outside the handle shell 200, and the large air hole 112 is also located outside the handle shell 200. The pressing part 111, the large air hole 112 and the matching part 300 are arranged in sequence along the first direction. Squeezing the pressing part 111 in the first direction pushes the entire adjustment pipe section 110 to move and deform. The matching part 300 is located on the moving path of the large air hole 112, so as to realize the fitting of the matching part 300 and the large air hole 112.

[0066] The matching part 300 is located outside the handle shell 200, which is convenient for installation and disassembly. Moreover, the structure inside the handle shell 200 is not changed, and it can be directly installed on the existing handle shell 200, which is more conducive to reducing costs.

[0067] When the matching part 300 is arranged independently outside the handle shell 200, refer to Figure 8 As shown, the mutually approaching side walls of the adjustment pipe section 110 can be fixed together, and then a first connection port 115 and a second connection port 116 are arranged on the side walls. The two connection ports are docked and communicated, so as to reduce the flow path of the medical waste liquid in the pipe body 100 and improve the suction efficiency.

[0068] In some preferred embodiments, the matching part 300 is configured to be able to deform under the drive of an external force to approach the large air hole 112, so as to block part of the large air hole 112. Refer to Figure 8 and Figure 9 As shown, a fourth limit member 800 is also installed at the handle shell 200. The fourth limit member 800 is used to limit and cooperate with the matching part 300 to prevent the matching part 300 from moving away from the large air hole 112 when the matching part 300 deforms to block part of the large air hole 112, and position the deformation state of the matching part 300.

[0069] Compared with not blocking the air hole 112, only partially blocking the air hole 112 can improve the suction effect of the negative pressure source on the inside of the tube body 100. Compared with completely blocking the air hole 112, blocking part of the air hole 112 reduces the suction effect of the negative pressure source on the inside of the tube body 100. For some relatively fragile human tissues, the excessive suction effect of the negative pressure source may cause damage to the human tissues. When a part of the air hole 112 is blocked, so that the negative pressure source has a certain suction effect on the inside of the tube body 100, the suction effect can be correspondingly weakened, which can reduce or even avoid damage to human tissues.

[0070] In some embodiments, part of the air hole 112 can also be blocked by controlling the force of pressing the pressing portion 111, but this control method is not stable and has high difficulty in operation. Therefore, in some embodiments of the present application, a fourth limiter 800 is used to limit the position of the mating portion 300, which is simple and convenient to operate and has a good blocking effect on the air hole 112.

[0071] The fourth stopper 800 may have various implementations. In some implementations, refer to Figure 8 As shown, the fourth stopper 800 has a protrusion, and the protrusion is located between the matching portion 300 and the air hole 112. By moving the matching portion 300, the matching portion 300 moves toward the air hole 112 and deforms, and the matching portion 300 moves from one side of the protrusion to the other side. Figure 9 As shown, the mating part 300 is then released, and the protrusion limits the mating part 300, so that the mating part 300 cannot be reset under its own rebound. There are two fourth limiting members 800, and the two fourth limiting members 800 are respectively located on both sides of the mating part 300 to improve the limiting effect of the mating part 300. In actual operation, the operator can use the thumb to squeeze the pressing part 111, use the index finger to move the mating part 300, or use the thumb to move the mating part 300, which is in line with the operator's hand posture of holding the handle shell 200.

[0072] In some embodiments of the present application, the sputum suction assembly further includes two fixing structures 700, referring to Figure 10 and Figure 11 As shown, the fixing structure 700 is used to fix the pipe body 100 to the installation channel 210, and the fixing structure 700 is located at a portion of the pipe body 100 outside the adjustment pipe section 110. The two fixing structures 700 are respectively located at both ends of the adjustment pipe section 110 to fix the overall position of the pipe body 100 to facilitate the bending and deformation of the adjustment pipe section 110.

[0073] The fixing structure 700 may be an annular structure fixed to the handle shell 200, which is sleeved outside the tube body 100 to fix the relative position of the tube body 100 and the handle shell 200. The annular structure forms an installation channel 210 for installing the tube body 100. Figure 10 andFigure 11 As shown, the general outline of the installation channel 210 is indicated by a dashed line.

[0074] In some preferred embodiments, the bending form of the adjusting pipe section 110 can be restricted by controlling the size of the first opening 220 and utilizing the first opening 220.

[0075] The embodiment of the present application further provides a sputum aspirator tube, which includes the sputum aspiration assembly provided in any of the above embodiments, and further includes an insertion tube 910 and a negative pressure connector 920. The insertion tube 910 and the negative pressure connector 920 are respectively located on both sides of the tube body 100. The insertion tube 910 is located at the distal end of the tube body 100. One end of the insertion tube 910 is docked and communicated with the distal end of the tube body 100, and the other end extends outside the handle housing 200 for inserting into the human body. The negative pressure connector 920 is located at the proximal end of the tube body 100 and is used to connect the tube body 100 and the negative pressure source.

[0076] The embodiment of the present application further provides a sputum aspiration endoscope, which includes the sputum aspiration assembly provided in any of the above embodiments, and further includes an insertion tube 910 and a camera module 940. The insertion tube 910 is installed at the distal end of the tube body 100. One end of the insertion tube 910 is docked and communicated with the distal end of the tube body 100, and the other end extends outside the handle housing 200 for inserting into the human body. The camera module 940 is installed at the distal end of the tube body 100, refer to Figure 12 and Figure 13 as shown. The camera module 940 is located at the distal end of the insertion tube 910 and can obtain a distal view, which is convenient for intraoperative operation. A light source assembly can also be installed at the distal end of the insertion tube 910. The light source assembly is used to provide a light source so that the camera module 940 can obtain clearer image information.

[0077] The sputum aspiration endoscope further includes a negative pressure connector 920 and an electrical connector 930. The negative pressure connector 920 is located at the proximal end of the tube body 100 and is used to connect the tube body 100 and the negative pressure source. One end of the electrical connector 930 is fixed to the handle housing 200. The electrical connector 930 is electrically connected to the camera module 940, the light source assembly, etc. at the front end of the insertion tube 910 and is used for wire routing, power supply, etc.

[0078] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0079] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. A sputum suction component, characterized in that, It includes a tube body (100) and a handle housing (200). The tube body (100) has a proximal end for connecting to a negative pressure source and a distal end for sucking a target substance. The tube body (100) passes through an installation channel (210) inside the handle housing (200). A middle tube section of the tube body (100) is bent to form an adjustment tube section (110). Part of the adjustment tube section (110) extends out of the handle housing (200) from a first opening (220) formed on the side wall of the handle housing (200). The adjustment tube section (110) has a pressing part (111), and the pressing part (111) is located outside the handle housing (200). An air hole (112) communicating with the external environment is provided on the tube wall of the adjustment tube section (110). The sputum suction assembly further includes a matching part (300), and the matching part (300) is located on the tube body (100) or the handle housing (200). The arrangement direction of the air hole (112) and the pressing part (111) is the first direction. Pressing the pressing part (111) along the first direction can push the adjustment tube section (110) to deform so that the air hole (112) fits with the matching part (300), and the matching part (300) cuts off the communication relationship between the air hole (112) and the external environment.

2. The sputum aspirating assembly according to claim 1, wherein The adjustment tube section (110) includes a first sub-tube section (113) and a second sub-tube section (114) that are connected in sequence and are bent. One end of both the first sub-tube section (113) and the second sub-tube section (114) is located inside the installation channel (210), and the other end is exposed outside the handle housing (200) and is connected. A first connection port (115) is provided on the tube wall of the first sub-tube section (113) close to the second sub-tube section (114). A second connection port (116) is provided on the tube wall of the second sub-tube section (114) close to the first sub-tube section (113). Both the first connection port (115) and the second connection port (116) are arranged close to the installation channel (210) relative to the pressing part (111). When the communication between the air hole (112) and the external environment is cut off, the first connection port (115) and the second connection port (116) are docked and communicated.

3. The sputum aspirating assembly according to claim 1, wherein The matching part (300) is part of the tube wall of the adjustment tube section (110). The matching part (300) and the air hole (112) are located on two adjacent tube walls of the adjustment tube section (110) and are arranged in a second direction, and the second direction is perpendicular to the first direction. When pressing the pressing part (111) along the first direction, the matching part (300) and the air hole (112) can move synchronously along the first direction, and the air hole (112) and the matching part (300) can approach each other along the second direction, so that the air hole (112) fits to the position of the matching part (300).

4. The sputum aspirating assembly according to claim 3, wherein A corresponding part of the tube wall of the adjusting tube section (110) of the fitting part (300) is further provided with a docking hole (310). When the large air hole (112) is in contact with the fitting part (300), the large air hole (112) is docked and communicated with the docking hole (310).

5. The sputum aspirating assembly according to claim 4, wherein The sputum suction assembly further includes a first limiting member (400). The first limiting member (400) is fixed to the handle housing (200). The adjusting tube section (110) is wound around the first limiting member (400). The first limiting member (400) is located between the pressing part (111) and the large air hole (112). When the pressing part (111) is pressed in the first direction, the pressing part (111) gradually approaches the first limiting member (400), and the distance between the adjusting tube section (110) and the first limiting member (400) in the first direction decreases until the large air hole (112) fits to the fitting part (300), and the first limiting member (400) prevents the adjusting tube section (110) from moving further in the first direction; And / or, the sputum suction assembly further includes a second limiting member (500). The second limiting member (500) is located in the first direction and at a position of the installation channel (210) away from the first opening (220). Two guiding surfaces (510) are provided on the surface of the second limiting member (500) close to the first opening (220). When the pressing part (111) is pressed in the first direction, a part of the adjusting tube section (110) can fit to the guiding surface (510), and the guiding surface (510) can guide a part of the adjusting tube section (110) to move along the axis of the installation channel (210) in a direction away from the second limiting member (500); And / or, the sputum suction assembly further includes two third limiting members (600) arranged along the axis of the installation channel (210). The third limiting members (600) are fixed to the handle housing (200). The two third limiting members (600) clamp both sides of the bent adjusting tube section (110), and the distance between the two third limiting members (600) along the axis of the installation channel (210) is less than twice the outer diameter dimension of the adjusting tube section (110) to squeeze the adjusting tube section (110) so that two side wall regions of the bent adjusting tube section (110) are in mutual contact and tightness.

6. The sputum aspirating assembly according to claim 1, wherein, The fitting part (300) is fixed outside the handle housing (200), the large air hole (112) is located outside the handle housing (200), and the pressing part (111), the large air hole (112) and the fitting part (300) are arranged in sequence in the first direction.

7. The sputum suction assembly according to claim 6, characterized in that, The fitting part (300) is configured to be deformed by an external force to approach the large air hole (112), so as to block part of the large air hole (112); A fourth limiting member (800) is further installed at the handle housing (200). The fourth limiting member (800) is configured to be in limiting cooperation with the engaging portion (300) to prevent the engaging portion (300) from moving away from the large air hole (112) when the engaging portion (300) is deformed to block a part of the large air hole (112).

8. The sputum aspirating assembly according to claim 1, wherein The suction component further includes two fixing structures (700). The fixing structures (700) are used to fix the tube body (100) to the installation channel (210), and the fixing structures (700) are located at a part of the tube body (100) outside the adjustment tube section (110). The two fixing structures (700) are respectively located at both ends of the adjustment tube section (110).

9. A sputum aspirator tube, characterized in that, Comprising the suction component according to any one of claims 1-8.

10. A sputum aspirating mirror, characterized in that, Comprising the suction component according to any one of claims 1-8, further comprising an insertion tube (910) and a camera module (940). The insertion tube (910) is installed at the distal end of the tube body (100) and is in communication with the tube body (100). The camera module (940) is installed at the distal end of the insertion tube (910).

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