Sputum suction device for thoracic surgery lung postoperative care

Abstract

The sputum suction device comprises a sputum suction box body which is of a square structure, a storage space is formed in the sputum suction box body, a pipe opening is formed in one face of the sputum suction box body, a sputum suction pipeline is installed on the pipe opening, and the sputum suction pipeline is communicated with the storage space; a negative pressure machine is arranged on the outer wall of the sputum suction box body, one end of the negative pressure machine is communicated with the storage space, and the negative pressure machine is used for reducing pressure in the storage space. One end of the negative pressure machine is communicated with the storage space, and the negative pressure machine is used for generating negative pressure by reducing the pressure intensity in the storage space, so that substances such as sputum are driven to enter the storage space from the sputum suction pipeline. According to the design, the negative pressure principle can be effectively utilized, sputum can be smoothly sucked into the storage space, centralized treatment is facilitated, overflow of the sputum in the sputum suction process is avoided, and the sputum suction efficiency and safety are improved; and the adjusting mechanism can be used for controlling the size of a gap between the conical plugging block and the connecting pipe, so that the gas flow is adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of sputum suction devices, in particular to a sputum suction device for postoperative care of lungs in thoracic surgery. Background Art

[0002] In thoracic surgery, postoperative care is an important part of ensuring the patient's recovery. Among them, suction operation plays a vital role in clearing respiratory secretions, preventing lung infections and promoting lung re-expansion. However, traditional suction devices have many shortcomings during use. For example, when suctioning sputum, the staff uses a negative pressure machine to suction sputum, and it is difficult to control the suction force. Therefore, it is particularly important to develop an efficient, safe and convenient suction device for postoperative care of thoracic surgery lungs. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that when suctioning sputum, the staff uses a negative pressure machine to suction sputum, and it is difficult to control the suction force.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a sputum suction device for postoperative care of lungs in thoracic surgery, comprising a sputum suction box body, which is in a square structure and has a storage space inside, a pipe opening is provided on one side of the sputum suction box body, a sputum suction pipe is installed on the pipe opening, and the sputum suction pipe is connected to the storage space; The outer wall of the sputum suction box is provided with a negative pressure machine, one end of which is connected to the storage space, and the negative pressure machine is used to reduce the pressure in the storage space.

[0007] As a preferred embodiment of the sputum suction device for postoperative care of lungs in thoracic surgery described in the present invention, an air storage box is also provided on the outer wall of the sputum suction box, and the air storage box is connected to a negative pressure machine, and the negative pressure machine is used to extract the gas in the storage space and fill it into the air storage box.

[0008] As a preferred embodiment of the sputum suction device for postoperative lung care in thoracic surgery described in the present invention, wherein: a plurality of air outlet hoses are connected to the air outlet of the air storage box, the air outlet hoses extend into the sputum suction pipe, the sputum suction pipe is a double-layer structure, the air outlet hose is located between the double-layer structures of the sputum suction pipe, the outer wall of the sputum suction pipe is provided with a plurality of first air outlets, the distal outer wall of the air outlet hose is provided with a second air outlet, the second air outlet of each air outlet hose corresponds to a first air outlet on the air outlet hose so that the gas in the air outlet hose can be discharged from the distal end of the sputum suction pipe through the second air outlet and the first air outlet.

[0009] As a preferred embodiment of the sputum suction device for postoperative care of thoracic surgery lungs of the present invention, wherein: the outlet hose is provided with an elastic airbag near the air storage box, the diameter of one end of the elastic airbag facing the distal end of the outlet hose is smaller than the diameter of the outlet hose body, and both the elastic airbag and the outlet hose are made of elastic materials; When the elastic airbag is squeezed, the diameter of the elastic airbag toward the far end of the air outlet hose expands under the action of air pressure; When the elastic airbag is released, the caliber of the elastic airbag toward the far end of the air outlet hose shrinks under the action of its own elasticity.

[0010] As a preferred embodiment of the sputum suction device for postoperative care of thoracic surgery lungs of the present invention, an elastic ring is also sleeved on the outer portion of the opening of the elastic airbag toward the distal end of the air outlet hose.

[0011] As a preferred embodiment of the sputum suction device for postoperative care of thoracic surgery lungs of the present invention, it further comprises an adjustment mechanism installed in the storage space and matched with the pipe opening; A connecting pipe is arranged on one side of the pipe opening in the storage space, and the regulating mechanism is used for regulating the speed and flow rate of gas flowing out of the connecting pipe.

[0012] As a preferred embodiment of the sputum suction device for postoperative care of thoracic surgery lungs of the present invention, the regulating mechanism comprises a conical block, a small end of the conical block extends into the connecting tube, and a large end of the conical block is provided with an annular plate; A shaped tube is arranged on the outer wall of the connecting tube, both ends of the shaped tube are facing the same side, and a first cylinder is arranged on the annular plate and extends into one end of the shaped tube; The adjusting mechanism also includes a push plate, which is coaxially arranged with the annular plate, and a second cylinder is arranged on the push plate, and the second cylinder extends into the other end of the shaped tube. When the push plate pushes the second cylinder forward in the shaped tube, the air pressure pushes the first cylinder backward and drives the conical block away from the connecting tube. When the push plate pulls the second cylinder backward in the shaped tube, the first cylinder is pushed forward and drives the conical block close to the connecting tube.

[0013] As a preferred embodiment of the sputum suction device for postoperative care of thoracic surgery lungs of the present invention, the end of the first cylinder is connected to the inner wall of the tube through a spring.

[0014] As a preferred embodiment of the sputum suction device for postoperative care of thoracic lung surgery described in the present invention, a circular shaft is coaxially arranged on a large-sized side of the conical block, a long groove is provided in a square shape along the axis line of the circular shaft on the outer wall of the circular shaft, a plurality of elastic triangular blocks are arranged in the long groove, the circular shaft passes through a push plate and the elastic triangular blocks cooperate with the push plate to limit the movement of the conical block toward the connecting tube.

[0015] As a preferred solution of the sputum suction device for postoperative care of thoracic surgery lungs of the present invention, the push plate is also provided with an open slot, and when the elastic triangular block corresponds to the open slot, the cooperation between the elastic triangular block and the push plate is released; The push plate is also provided with a coaxial push tube, and the push tube extends out of the sputum suction box body.

[0016] Beneficial effects of the present invention: The present invention is connected to the storage space through one end of the negative pressure machine, and its function is to generate negative pressure by reducing the pressure in the storage space, thereby driving sputum and other substances from the sputum suction pipe into the storage space. This design can effectively utilize the negative pressure principle, so that sputum can be smoothly sucked into the storage space, which is convenient for centralized treatment, avoids sputum overflow during sputum suction, and improves the efficiency and safety of sputum suction; Moreover, the adjustment mechanism can be used to control the size of the gap between the conical block and the connecting tube, thereby adjusting the gas flow. Medical staff can flexibly adjust the gas flow during the suction process according to the patient's specific situation and suction needs, thereby improving the accuracy and comfort of suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative labor. Among them: Figure 1 It is the front view of the sputum suction device in the first embodiment.

[0018] Figure 2 It is a side view of the sputum suction device in the first embodiment.

[0019] Figure 3 It is a structural diagram of the sputum suction pipeline and the air outlet hose in the first embodiment.

[0020] Figure 4 It is the structural diagram of the adjustment mechanism in the second embodiment.

[0021] Figure 5 It is a structural diagram of the push plate and the conical blocking block in the second embodiment. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Example 1 Reference Figures 1 to 3 , which is the first embodiment of the present invention, provides a sputum suction device for postoperative care of thoracic lung surgery. The sputum suction device includes a sputum suction box body 100 with a square structure, which has a storage space 101 inside for storing sucked sputum and other substances.

[0026] One side of the sputum suction box body 100 is provided with a pipe mouth 102, and a sputum suction pipe 103 is installed on the pipe mouth 102. Specifically, the two can be fixedly connected by connecting flanges, and the sputum suction pipe 103 can also be directly plugged into the pipe mouth 102 and sealed by a sealing ring. The sputum suction pipe 103 is connected to the storage space 101, so that sputum can be sucked into the storage space 101 through the sputum suction pipe 103. A negative pressure machine 200 is arranged on the outer wall of the sputum suction box body 100, and one end of the negative pressure machine 200 is connected to the storage space 101. Its function is to generate negative pressure by reducing the pressure in the storage space 101, thereby driving sputum and other substances from the sputum suction pipe 103 into the storage space 101. This design can effectively utilize the negative pressure principle, so that sputum is smoothly sucked into the storage space, which is convenient for centralized treatment, avoids sputum overflow during sputum suction, and improves the efficiency and safety of sputum suction.

[0027] The outer wall of the sputum suction box body 100 is also provided with a gas storage box 300, and the gas storage box 300 is connected to the negative pressure machine 200. The negative pressure machine 200 is not only used to reduce the pressure in the storage space 101, but also to fill the gas extracted from the storage space 101 into the gas storage box 300. A plurality of air outlet hoses 301 are connected to the air outlet of the gas storage box 300, and the air outlet hoses 301 extend into the sputum suction pipeline 103. The sputum suction pipeline 103 adopts a double-layer structure design, and the air outlet hose 301 is located between the double-layer structures of the sputum suction pipeline 103. A plurality of first air outlets are provided on the outer wall of the sputum suction pipeline 103, and a second air outlet is provided on the outer wall of the far end of the air outlet hose 301, and the second air outlet of each air outlet hose 301 corresponds to a first air outlet on the air outlet hose 301. The purpose of such design is to enable the gas in the air outlet hose 301 to be discharged from the far end of the sputum suction pipeline 103 through the second air outlet and the first air outlet.

[0028] Multiple air outlet hoses 301 are arranged circumferentially between the double-layer structure of the suction pipe 103, so that the suction pipe 103 will encounter a bifurcation when it is extended into the airway, and the air is ejected through the second air outlet and the first air outlet. The angle of the far end of the suction pipe 103 can be adjusted by using the gas reaction force.

[0029] In addition, during the suction process, when the suction pipe 103 needs to be flushed or ventilation is needed between suctions, the gas in the air storage box 300 can be discharged through the air outlet hose 301 and the air outlet, which helps to keep the suction pipe 103 unobstructed and prevent sputum from condensing and clogging in the pipe. At the same time, it can also adjust the air pressure in the suction pipe to a certain extent, making the suction process smoother.

[0030] The outlet hose 301 has an elastic airbag 302 near the air storage box 300. The diameter of one end of the elastic airbag 302 facing the far end of the outlet hose 301 is smaller than the diameter of the outlet hose 301 body, and both the elastic airbag 302 and the outlet hose 301 are made of elastic materials. When the elastic airbag 302 is squeezed, the diameter of the elastic airbag 302 facing the far end of the outlet hose 301 will expand under the action of air pressure, which can increase the circulation speed and flow of gas; when the elastic airbag 302 is released, the diameter of the elastic airbag 302 facing the far end of the outlet hose 301 will shrink under the action of its own elasticity, which plays a role in controlling the gas flow and preventing gas backflow.

[0031] In addition, an elastic ring 303 is also sleeved on the outside of the opening of the elastic airbag 302 toward the far end of the air outlet hose 301. The elastic ring 303 can further enhance the sealing and stability of the elastic airbag 302, ensure the normal circulation of gas in the air outlet hose 301, avoid gas leakage, and improve the reliability and safety of the entire sputum suction device.

[0032] When the air outlet hose 301 is used, the gas in the elastic airbag 302 can be ejected through the far end of the air outlet hose 301 by squeezing the elastic airbag 302. After the elastic airbag 302 is restored, the gas in the air storage box 300 can be automatically replenished into the elastic airbag 302.

[0033] This elastic design gives the elastic airbag 302 and the outlet hose 301 flexible deformation capabilities. When medical staff apply external force to squeeze the elastic airbag 302, under the action of air pressure, the caliber of the elastic airbag 302 toward the far end of the outlet hose 301 will expand instantly, just like opening a "valve", allowing the gas to pass through the outlet hose 301 more quickly and smoothly, thereby increasing the circulation speed and flow of the gas. After releasing the external force on the elastic airbag 302, the elastic airbag 302 will quickly return to its original state by virtue of its own elasticity, and its caliber toward the far end of the outlet hose 301 will also shrink accordingly, which is like closing the "valve", which can effectively prevent gas reflux and control the gas flow.

[0034] Example 2 Reference Figure 4 , 5 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The sputum suction device also includes an adjustment mechanism 400 installed in the storage space 101 and matched with the pipe mouth 102.

[0035] A connecting pipe 104 is provided on one side of the pipe opening 102 located in the storage space 101 , and the regulating mechanism 400 is used to regulate the speed and flow rate of gas flowing out of the connecting pipe 104 .

[0036] Specifically, the adjustment mechanism 400 includes a conical block 401, a small end of the conical block 401 extends into the connecting pipe 104, and a large end is provided with an annular plate 402. In a normal state, the conical block 401 blocks the connecting pipe 104 to seal the storage space 101, so that the negative pressure machine 200 can reduce the air pressure in the storage space 101 when it is running.

[0037] After the conical block 401 is separated from the connecting tube 104, the air pressure in the storage space 101 is unbalanced with the air pressure in the air outlet hose 301, so the air in the air outlet hose 301 will be drawn into the storage space 101, which plays a role in suctioning phlegm. The air passes between the outer wall of the conical block 401 and the connecting tube 104. Due to the conical shape of the conical block 401, the farther the conical block 401 is separated from the connecting tube 104, the larger the gap between the two, and the more and faster the air flows in. On the contrary, the smaller the gap is, the less and slower the air flows in. In this way, the suctioning force can be controlled.

[0038] A U-shaped tube 105 is disposed on the outer wall of the connecting tube 104 , with both ends of the U-shaped tube 105 facing the same side. A first cylinder 403 is disposed on the annular plate 402 and extends into one end of the U-shaped tube 105 .

[0039] The adjustment mechanism 400 also includes a push plate 404, which is coaxially arranged with the annular plate 402. A second cylinder 405 is arranged on the push plate 404. The specific arrangement structure is that an arc groove D is provided on the push plate 404, and one end of the second cylinder 405 is embedded in the arc groove D so that the second cylinder 405 can move in the arc groove D.

[0040] The second cylinder 405 extends into the other end of the U-shaped tube 105. When the push plate 404 pushes the second cylinder 405 forward in the U-shaped tube 105, the air pressure will push the first cylinder 403 backward and drive the conical block 401 away from the connecting tube 104. The larger the gap between the two, the smoother the gas can flow out of the connecting tube 104, and the flow rate will increase; and when the push plate 404 pulls the second cylinder 405 backward in the U-shaped tube 105, the first cylinder 403 will be pushed forward and drive the conical block 401 close to the connecting tube 104. The smaller the gap between the two, the smaller the speed and flow rate of gas outflow. Through this adjustment mechanism, medical staff can flexibly adjust the gas flow rate during the suction process according to the patient's specific conditions and suction needs, thereby improving the accuracy and comfort of suction.

[0041] Furthermore, the end of the first cylinder 403 is connected to the inner wall of the U-shaped tube 105 via a spring A. The setting of the spring A can play a role of buffering and resetting. When the push plate 404 applies an external force to the second cylinder 405, the spring A can absorb the impact force to a certain extent, making the adjustment process smoother; at the same time, after the external force disappears, the spring A can drive the first cylinder 403 and the conical block 401 to return to the initial position, ensuring that the adjustment mechanism can accurately return to the predetermined state, which is convenient for the next adjustment operation.

[0042] A circular shaft 406 is coaxially arranged on one side of the large size of the conical block 401, and a long groove 407 is provided on the outer wall of the circular shaft 406 along the axis of the circular shaft 406, and a plurality of elastic triangular blocks 408 are arranged in the long groove 407. The side of the elastic triangular block 408 facing the conical block 401 is a vertical plane.

[0043] The circular shaft 406 passes through the push plate 404 , that is, a circular groove is provided on the push plate 404 , and the circular shaft 406 passes through the circular groove.

[0044] The elastic triangular block 408 cooperates with the push plate 404 to limit the conical blocking block 401 from moving toward the connecting pipe 104 .

[0045] When the push plate 404 pushes the second cylinder 405 forward, the second cylinder 405 moves forward in the U-shaped tube 105, and the air pressure pushes the first cylinder 403 backward, driving the conical block 401 away from the connecting tube 104. At this time, the elastic triangular block 408 will be pressed down by the inner wall of the circular groove of the push plate 404, deformed and enter the long groove 407, and then the circular shaft 406 moves, and the elastic triangular block 408 passes over the push plate 404, and after reaching the side of the push plate 404 away from the conical block 401, the elastic triangular block 408 is reset, because the side of the elastic triangular block 408 facing the conical block 401 is a vertical plane, and the vertical plane contacts and resists the surface of the push plate 404. The main function of the elastic triangular block 408 is to limit the conical block 401 from moving in the direction close to the connecting tube 104.

[0046] There are multiple elastic triangular blocks 408. During the movement of the circular shaft 406, the elastic triangular blocks 408 pass over the push plate 404 one by one. They can be stopped at any time under the control of the staff, and one of the elastic triangular blocks 408 is matched with the push plate 404 to maintain the gap between the conical block 401 and the connecting pipe 104.

[0047] The push plate 404 also has an open slot B. Due to the arc slot D provided on the push plate 404 , the second cylinder 405 can rotate relative to the push plate 404 at a certain angle. Therefore, rotating the push plate 404 can make the open slot B correspond to the elastic triangular block 408 .

[0048] When the elastic triangular block 408 corresponds to the opening slot B, the elastic triangular block 408 can be released from the push plate 404. That is, the elastic triangular blocks 408 can pass through the opening slot B one by one so that the circular shaft 406 moves in the reverse direction, and the reverse movement means that the conical block 401 approaches the connecting pipe 104, and the gap between the conical block 401 and the connecting pipe 104 becomes smaller.

[0049] The purpose of such design is to facilitate medical staff to easily release the limit when they need to quickly adjust the adjustment mechanism or replace parts, so that the push plate 404 and the conical block 401 can move freely, thereby improving the maintenance and operation convenience of the device.

[0050] The push plate 404 is also provided with a coaxial push tube C, which extends out of the sputum suction box 100. The setting of the push tube C enables medical staff to directly apply external force to the push plate 404 through the push tube C when operating the adjustment mechanism, which makes the operation more convenient and labor-saving, and improves work efficiency.

[0051] When using the sputum suction device for postoperative care of thoracic surgery lungs, first start the negative pressure machine 200, which generates negative pressure by reducing the pressure in the storage space 101, so that sputum and other substances can be sucked into the storage space 101 through the sputum suction pipe 103. During the sputum suction process, if it is necessary to flush the sputum suction pipe 103 or adjust the air pressure or change the angle and orientation of the sputum suction pipe 103, the gas in the gas storage box 300 can be discharged through the air outlet hose 301 and the air outlet by squeezing the elastic airbag 302, which helps to keep the sputum suction pipe 103 unobstructed, or change the orientation by the reverse force. At the same time, according to the specific situation of the patient, the medical staff can operate the push plate 404 through the push tube C, thereby driving the second cylinder 405 to move in the U-shaped tube 105, and adjusting the position of the conical block 401, thereby controlling the speed and flow of the gas flowing out of the connecting tube 104, making the sputum suction process more accurate and comfortable. Through ingenious structural design, the entire device achieves an organic combination of multiple functions such as suction, ventilation, and flow regulation, which improves the efficiency and quality of postoperative care for lungs in thoracic surgery and provides strong support for the patient's recovery.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0053] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0054] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sputum suction device for postoperative care of thoracic surgery lungs, characterized in that: include, The sputum suction box body (100) is in a square structure and has a storage space (101) therein; a pipe opening (102) is provided on one side of the sputum suction box body (100); a sputum suction pipe (103) is installed on the pipe opening (102); and the sputum suction pipe (103) is in communication with the storage space (101); A negative pressure machine (200) is disposed on the outer wall of the sputum suction box (100), one end of the negative pressure machine (200) is connected to the storage space (101), and the negative pressure machine (200) is used to reduce the pressure in the storage space (101).

2. The sputum suction device for postoperative care of thoracic surgery lungs as claimed in claim 1, characterized in that: An air storage box (300) is also provided on the outer wall of the sputum suction box body (100). The air storage box (300) is connected to a negative pressure machine (200). The negative pressure machine (200) is used to extract the gas in the storage space (101) and fill it into the air storage box (300).

3. The sputum suction device for postoperative care of thoracic surgery lungs as claimed in claim 2, characterized in that: A plurality of air outlet hoses (301) are connected to the air outlet of the air storage box (300), and the air outlet hoses (301) extend into the sputum suction pipe (103). The sputum suction pipe (103) is a double-layer structure, and the air outlet hose (301) is located between the double-layer structure of the sputum suction pipe (103). The outer wall of the sputum suction pipe (103) is provided with a plurality of first air outlets, and the outer wall of the far end of the air outlet hose (301) is provided with a second air outlet, and the second air outlet of each air outlet hose (301) corresponds to a first air outlet on the air outlet hose (301) so that the gas in the air outlet hose (301) is discharged from the far end of the sputum suction pipe (103) through the second air outlet and the first air outlet.

4. The sputum suction device for postoperative care of thoracic surgery lungs as claimed in claim 3, characterized in that: The outlet hose (301) is provided with an elastic airbag (302) near the air storage box (300); the diameter of one end of the elastic airbag (302) facing the far end of the outlet hose (301) is smaller than the diameter of the main body of the outlet hose (301); and both the elastic airbag (302) and the outlet hose (301) are made of elastic material; When the elastic airbag (302) is squeezed, the caliber of the elastic airbag (302) toward the far end of the air outlet hose (301) expands under the action of air pressure; When the elastic airbag (302) is released, the caliber of the elastic airbag (302) toward the far end of the air outlet hose (301) shrinks under the action of its own elasticity.

5. The sputum suction device for postoperative care of thoracic surgery lungs as claimed in claim 4, characterized in that: An elastic ring (303) is also sleeved on the outer portion of the opening of the elastic air bag (302) facing the far end of the air outlet hose (301).

6. The sputum suction device for postoperative care of thoracic surgery lungs as claimed in claim 1, characterized in that: It also includes an adjustment mechanism (400) installed in the storage space (101) and cooperating with the pipe opening (102); A connecting pipe (104) is provided on one side of the pipe opening (102) located in the storage space (101), and the regulating mechanism (400) is used to regulate the speed and flow rate of gas flowing out of the connecting pipe (104).

7. The sputum suction device for postoperative care of thoracic surgery lungs according to claim 6, characterized in that: The regulating mechanism (400) comprises a conical block (401), a small-sized end of the conical block (401) extends into the connecting pipe (104), and a large-sized end of the conical block (401) is provided with an annular plate (402); A U-shaped tube (105) is provided on the outer wall of the connecting tube (104), both ends of the U-shaped tube (105) are facing the same side, and a first cylinder (403) is provided on the annular plate (402) and extends into one end of the U-shaped tube (105); The regulating mechanism (400) further comprises a push plate (404), wherein the push plate (404) is coaxially arranged with the annular plate (402), and a second cylinder (405) is arranged on the push plate (404), and the second cylinder (405) extends into the other end of the U-shaped tube (105). When the push plate (404) pushes the second cylinder (405) forward in the U-shaped tube (105), the air pressure pushes the first cylinder (403) backward and drives the conical block (401) away from the connecting tube (104). When the push plate (404) pulls the second cylinder (405) backward in the U-shaped tube (105), the first cylinder (403) is pushed forward and drives the conical block (401) close to the connecting tube (104).

8. The sputum suction device for postoperative care of thoracic surgery lungs as claimed in claim 7, characterized in that: The end of the first cylinder (403) is connected to the inner wall of the U-shaped tube (105) via a spring (A).

9. The sputum suction device for postoperative care of thoracic surgery lungs as claimed in claim 8, characterized in that: A circular shaft (406) is coaxially arranged on one side of the larger size of the conical block (401); a long groove (407) is provided on the outer wall of the circular shaft (406) along the axis of the circular shaft (406); a plurality of elastic triangular blocks (408) are arranged in the long groove (407); the circular shaft (406) passes through the push plate (404); and the elastic triangular blocks (408) cooperate with the push plate (404) to limit the movement of the conical block (401) toward the connecting pipe (104).

10. The sputum suction device for postoperative care of thoracic surgery lungs according to claim 9, characterized in that: The push plate (404) is also provided with an open groove (B), and when the elastic triangular block (408) corresponds to the open groove (B), the elastic triangular block (408) and the push plate (404) are released from the cooperation. The push plate (404) is also provided with a coaxial push tube (C), and the push tube (C) extends out of the sputum suction box body (100).

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