Sputum excretion nursing device for severe pulmonary infection of old people

Abstract

The invention relates to the technical field of medical instruments, in particular to an elderly severe pulmonary infection sputum excretion nursing device which comprises a negative pressure generating mechanism and a communicating pipe communicated with the negative pressure generating mechanism, and an adsorption assembly used for adsorbing sputum is arranged at the front end of the communicating pipe. The adsorption assembly comprises a hose communicating with the end, away from the negative pressure generation mechanism, of the communicating pipe, a plurality of adsorption openings are formed in the hose, sliding plates are in sliding fit with the interiors of the adsorption openings, elastic rods are hinged to the inner side walls of the sliding plates, a center rod is transversely in sliding fit with the middle of the hose, and the ends, away from the sliding plates, of the elastic rods are hinged to the center rod; a driving assembly used for driving the center rod to slide transversely is arranged in the hose. A supporting assembly used for supporting the trachea of a patient when sputum is adsorbed is arranged at the front end of the hose. The sputum aspirator is complete in function and capable of effectively improving the sputum aspiration effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a sputum removal nursing device for elderly patients with severe lung infection. Background Art

[0002] Elderly patients with severe lung infections often experience decreased lung function due to underlying diseases (such as chronic obstructive pulmonary disease, heart failure, and diabetes). This leads to weakened respiratory mucociliary motility, a sluggish cough reflex, and thick, difficult-to-expel sputum. Sputum retention can lead to airway obstruction, atelectasis, respiratory failure, and even be life-threatening.

[0003] In the existing technology, sputum is mainly discharged through a negative pressure suction device. By inserting an adsorption tube into the patient's trachea and various bronchi, the sputum is adsorbed by the negative pressure equipment. During this process, the operator needs to switch the suction position multiple times to improve the comprehensiveness of the suction; however, during the switching process, the negative pressure adsorption needs to be stopped to avoid causing harm to the patient. At this time, due to the influence of the patient's breathing and gravity, the sputum will flow back into the patient's body from the adsorption tube, seriously affecting the patient's treatment effect.

[0004] In summary, how to solve the problem of sputum backflow easily occurring when switching suction positions in existing negative pressure sputum suction devices has become a difficult problem that needs to be solved in the current field. Therefore, it is necessary to propose a more reasonable sputum removal nursing device for elderly patients with severe lung infection. Summary of the Invention

[0005] To solve the above problems, the present invention provides a sputum removal nursing device for elderly patients with severe lung infection. Through the design of the adsorption component, it can effectively prevent sputum reflux during the process of switching the sputum suction position, thereby improving the treatment effect of patients.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a sputum removal nursing device for elderly patients with severe lung infection, comprising a negative pressure generating mechanism and a connecting tube connected to the negative pressure generating mechanism, and an adsorption component for adsorbing sputum is provided at the front end of the connecting tube.

[0007] The adsorption component includes a hose connected to the connecting tube at one end away from the negative pressure generating mechanism. The hose is provided with several adsorption ports. The adsorption ports are all slidably fitted with sliding plates. The inner side walls of the sliding plates are hinged with elastic rods. The middle part of the hose is laterally slidably fitted with a center rod, and the elastic rods are hinged to the center rod at one end away from the sliding plate. A driving component is provided in the hose for driving the center rod to slide laterally in the hose according to the opening and closing of the negative pressure generating mechanism. The negative pressure drive generated by the negative pressure generating mechanism is used to operate the driving component and provide suction for adsorbing sputum.

[0008] A supporting component is provided at the front end of the hose for supporting the patient's trachea when absorbing sputum.

[0009] The technical principles of the above solution are as follows:

[0010] In the initial state, the sliding plates are all located in the adsorption port; during treatment, the connecting tube and the hose are first inserted into the patient's trachea through the patient's mouth. After reaching the designated position, the negative pressure generating mechanism is started. After the negative pressure generating mechanism is started, the driving assembly will drive the center rod to slide horizontally in the hose toward the side close to the connecting tube. At this time, the center rod will drive the elastic rod to rotate, and the elastic rod will push the sliding plate out of the adsorption port, so that the hose is connected to the patient's trachea, and then the adsorption force of the negative pressure generating mechanism is used to adsorb the sputum in the patient's body.

[0011] When switching the suction position, the negative pressure generating mechanism is turned off. At this time, the driving assembly will drive the central rod to slide laterally away from the connecting tube, thereby driving the elastic rod to rotate and driving the sliding plate to block the suction port to prevent sputum from flowing back.

[0012] The above scheme has the following beneficial effects:

[0013] 1. In conventional negative pressure sputum suction devices, when switching suction positions, sputum in the suction pipe can flow back into the patient's body due to the influence of the patient's breathing and gravity, seriously affecting the patient's treatment effect. The present invention utilizes the adsorption effect of the negative pressure generating mechanism through the design of the adsorption port and the sliding plate. When sputum adsorption is required, the sliding plate will slide outward from the adsorption port, allowing the sputum suction to proceed normally. When the sputum suction position needs to be switched, the sliding plate can quickly block the adsorption port to prevent sputum backflow, thereby effectively improving the patient's treatment effect.

[0014] 2. Through the design of the central rod and the elastic rod, the present invention can synchronously drive all the elastic rods to move together through the movement of the central rod, and then drive all the sliding plates to slide synchronously in the adsorption port, so that the sputum suction function and the blocking function of the device can be reasonably realized.

[0015] 3. In the present invention, through the design of the elastic rod and the sliding plate, when the device is performing sputum suction work, in the process of continuously generating negative pressure, the sliding plate always floats, and can reciprocately squeeze the sputum located at the adsorption port, so that the sputum is dispersed, the viscosity of the sputum is reduced, and the sputum is promoted to be adsorbed by the pump assembly.

[0016] Furthermore, the driving assembly includes a movable chamber opened in the hose, the movable chamber is fixedly connected to a ring-shaped bracket at one end away from the center rod, the bracket is fixedly connected to a spring on the side close to the center rod, the spring is fixedly connected to a conical plate at one end away from the bracket, the movable chamber has a conical opening at one end close to the conical plate, the diameter of the conical opening close to the center rod is smaller than the diameter of the conical opening away from the center rod; the conical plate is fixedly connected to the center rod at one end away from the spring.

[0017] Beneficial Effects: The support frame provides a reasonable installation location for the spring without affecting the flow of gas. In the initial state, the conical plate will block the conical opening due to the elastic force of the spring. When the negative pressure generating mechanism is activated, the attraction of the negative pressure generating mechanism will overcome the elastic force of the spring, causing the conical plate to move away from the conical opening, thereby allowing the suction work to proceed normally. At the same time, the conical plate will also drive the central rod to slide horizontally, thereby driving the elastic rod to rotate, thereby driving the sliding plate to slide within the suction opening.

[0018] Furthermore, the support assembly includes a deformation layer fixedly connected to the end of the hose away from the connecting pipe, and a pull rod is provided in the hose. The pull rod extends into the deformation layer away from the end of the hose and is fixedly connected to the inner wall of the deformation layer away from the hose; a traction assembly is provided in the hose for pulling the pull rod to move and thereby drive the deformation layer to deform.

[0019] Beneficial effects: When the traction assembly pulls the pull rod to slide into the hose, since the pull rod is fixedly connected to the inner wall of the deformation layer away from the hose, the pull rod will pull the inner wall of the deformation layer away from the hose into the hose, causing a depression in the middle of the deformation layer. Since the total volume of the deformation layer remains unchanged, the volume of the middle of the deformation layer decreases, and the volume of the edge of the deformation layer increases; thereby further supporting the inner walls of the patient's trachea and bronchi, preventing the device from causing damage to the inner walls of the patient's trachea and bronchi when adsorbing sputum.

[0020] Furthermore, the traction assembly includes a sleeve, the end of the pull rod away from the deformation layer is fixedly connected to the sleeve, the end of the center rod away from the conical plate extends into the sleeve and is fixedly connected to a pulling plate, and the pulling plate is slidably engaged with the inner wall of the sleeve.

[0021] Beneficial effect: When the center rod moves laterally in the hose, the center rod drives the pulling plate to slide laterally in the sleeve; then drives the sleeve to move laterally in the hose, and the sleeve drives the pull rod to move laterally in the hose, thereby adjusting the shape of the deformation layer.

[0022] Furthermore, the minimum diameter of the tapered opening is smaller than the minimum diameter of the tapered plate, so as to limit the position of the tapered plate.

[0023] Beneficial effect: Such a design enables the conical opening to limit the conical plate, preventing the conical plate from escaping from the movable cavity.

[0024] Furthermore, the adsorption ports are all conical, and the diameter of the adsorption port on the side close to the center rod is smaller than the diameter of the adsorption port on the side away from the center rod.

[0025] Beneficial effect: Compared with the rectangular design, the tapered design makes the adsorption port opening area larger, thereby expanding the adsorption area of the adsorption port and improving the adsorption effect.

[0026] Furthermore, a limiting ring is provided on the outer sliding sleeve of the sleeve, and the outer side wall of the limiting ring is fixedly connected to the inner side wall of the hose close to one end of the sleeve.

[0027] Beneficial effect: The limiting ring can limit the sleeve so that when it slides horizontally in the hose, it can maintain stable movement under the limitation of the limiting ring, avoiding the sleeve from tilting, which causes the center rod and the pulling plate to be unable to move normally in the sleeve.

[0028] Furthermore, a fixed sleeve on the outer wall of the hose near one end of the bracket is provided with a streamlined arc ring, and the diameter of the arc ring decreases in a direction away from the adsorption port.

[0029] Beneficial effects: When the hose slides into the patient's trachea or bronchus, the front end of the arc-shaped ring will push the sputum on the inner wall of the patient's trachea or bronchus forward, loosening the sputum and facilitating the subsequent adsorption of the sputum into the hose through the adsorption port; at the same time, the arc-shaped ring can also support the inner wall of the patient's trachea and bronchus during the movement.

[0030] Furthermore, the elastic rod is made of biocompatible material.

[0031] Beneficial effects: Biocompatible materials can significantly reduce patients' rejection reactions and improve the overall safety of the device.

[0032] Furthermore, the deformation layer and the arc ring are both made of silicone-paraffin composite materials.

[0033] Beneficial effects: The silicone-paraffin composite material has good deformation ability and certain support, and can support tracheas and bronchi of different diameters; and compared with materials such as rubber, the silicone-paraffin composite material has less friction with the trachea and bronchi, making the hose smoother when inserted into the patient's body, reducing discomfort caused to the patient; and the silicone-paraffin composite material will only deform when subjected to force and will not automatically rebound.

[0034] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is an axonometric diagram of the sputum removal nursing device for elderly patients with severe lung infection according to the present invention.

[0036] Figure 2 The figure is a side sectional view of the adsorption component in the sputum removal nursing device for elderly patients with severe lung infection according to the present invention in the initial state.

[0037] Figure 3This is a side axonometric view of the adsorption component in the sputum suction nursing device for elderly patients with severe lung infection according to the present invention during the sputum suction process.

[0038] Figure 4 The figure is a side sectional view of the limiting component in the sputum removal nursing device for elderly patients with severe lung infection according to the present invention.

[0039] Figure 5 The present invention is a front view of a bracket in the sputum removal nursing device for elderly patients with severe lung infection.

[0040] The figure marks in the drawings of the specification include: 1. negative pressure generating mechanism; 2. connecting pipe; 3. hose; 4. bracket; 5. spring; 6. conical plate; 7. center rod; 8. elastic rod; 9. sliding plate; 10. limiting ring; 11. sleeve; 12. deformation layer; 13. pulling plate; 14. pull rod; 15. arc ring. DETAILED DESCRIPTION

[0041] The following is further described in detail through specific implementation methods:

[0042] Example 1:

[0043] As attached Figure 1-Figure 5 As shown: A sputum removal nursing device for elderly patients with severe lung infection, comprising a negative pressure generating mechanism 1 (a negative pressure pump is selected in this embodiment) and a connecting tube 2 connected to the negative pressure generating mechanism 1, and an adsorption component for adsorbing sputum is provided at the front end of the connecting tube 2.

[0044] The adsorption component includes a hose 3 connected to the connecting tube 2 at one end away from the negative pressure generating mechanism 1. The hose 3 is provided with several adsorption ports, and sliding plates 9 are slidably fitted in the adsorption ports. The inner walls of the sliding plates 9 are hinged with elastic rods 8. The middle part of the hose 3 is laterally slidably fitted with a center rod 7, and the elastic rod 8 is hinged to the center rod 7 at one end away from the sliding plate 9; a driving component is provided in the hose 3 for driving the center rod 7 to slide laterally in the hose 3 according to the opening and closing of the negative pressure generating mechanism 1; the negative pressure drive generated by the negative pressure generating mechanism 1 is used to operate the driving component and provide suction for adsorbing sputum.

[0045] Specifically, such as Figure 3 As shown, when the negative pressure generating mechanism 1 is started, the driving assembly will drive the center rod 7 to slide horizontally to the left in the hose 3. At this time, since the center rod 7 is hinged to the elastic rod 8, the center rod 7 will drive the elastic rod 8 to rotate, and the elastic rod 8 will push the sliding plate 9 out of the adsorption port, so that the hose 3 is connected to the patient's trachea, and then the adsorption force of the negative pressure generating mechanism 1 can be used to adsorb the sputum in the patient's body.

[0046] like Figure 2As shown, when the suction position is switched, the negative pressure generating mechanism 1 is closed. At this time, the driving component will drive the central rod 7 to slide horizontally to the right in the hose 3, thereby driving the elastic rod 8 to rotate and driving the sliding plate 9 to block the suction port to prevent sputum from flowing back.

[0047] The drive assembly includes a movable chamber defined within a hose 3. An annular bracket 4 is fixedly bonded to the end of the movable chamber away from the center rod 7. A spring 5 is fixedly bonded to the side of the bracket 4 near the center rod 7. A conical plate 6 is fixedly bonded to the end of the spring 5 away from the bracket 4. A conical opening is defined at the end of the movable chamber near the conical plate 6. The diameter of the conical opening near the center rod 7 is smaller than the diameter of the opening away from the center rod 7. The end of the conical plate 6 away from the spring 5 is fixedly bonded to the center rod 7. The minimum diameter of the conical opening is smaller than the minimum diameter of the conical plate 6, thereby limiting the position of the conical plate 6.

[0048] Specifically, the support frame provides a reasonable installation position for the spring 5 without affecting the flow of gas. Figure 2 As shown), due to the elastic force of the spring 5, the conical plate 6 will block the conical mouth. When the negative pressure generating mechanism 1 is started, the attraction of the negative pressure generating mechanism 1 will overcome the elastic force of the spring 5, so that the conical plate 6 will be away from the conical mouth, thereby enabling the sputum suction work to proceed normally; at the same time, the conical plate 6 will also drive the central rod 7 to slide horizontally, thereby driving the elastic rod 8 to rotate, thereby driving the sliding plate 9 to slide in the adsorption port.

[0049] The elastic rod 8 is made of a biocompatible material (medical rubber is used in this embodiment). Biocompatible materials can significantly reduce the patient's rejection reaction and improve the overall safety of the device.

[0050] A support component is provided at the front end of the hose 3 for supporting the patient's trachea when absorbing sputum.

[0051] The support assembly includes a deformable layer 12 fixedly bonded to the end of the hose 3 away from the connecting pipe 2, and a pull rod 14 is provided in the hose 3. The pull rod 14 extends into the deformable layer 12 away from the end of the hose 3 and is fixedly bonded to the inner wall of the deformable layer 12 away from the hose 3; a traction assembly is provided in the hose 3 for pulling the pull rod 14 to move and thereby drive the deformable layer 12 to deform.

[0052] Specifically, when the traction assembly pulls the pull rod 14 to slide into the hose 3, since the pull rod 14 is fixedly bonded to the inner wall of the deformation layer 12 away from the hose 3, the pull rod 14 will pull the inner wall of the deformation layer 12 away from the hose 3 toward the hose 3, causing a depression in the middle of the deformation layer 12. Since the total volume of the deformation layer 12 remains unchanged, the volume of the middle of the deformation layer 12 decreases, and the volume of the edge of the deformation layer 12 increases; thereby further supporting the inner walls of the patient's trachea and bronchi, preventing the device from causing damage to the inner walls of the patient's trachea and bronchi when adsorbing sputum.

[0053] like Figure 3 As shown, in this embodiment, the maximum width of the deformable layer 12 after complete deformation is greater than the maximum spacing between the sliding plates 9 on both sides of the hose 3. When the deformable layer 12 is completely deformed, the sliding plates 9 cannot contact the inner walls of the patient's trachea and bronchus, thereby avoiding damage to the inner walls of the trachea and bronchus caused by the gap between the suction port and the sliding plate 9 during the suction process.

[0054] like Figure 4 As shown, the traction assembly includes a sleeve 11, a pull rod 14 fixedly bonded to the sleeve 11 at one end away from the deformation layer 12, a center rod 7 extending into the sleeve 11 at one end away from the conical plate 6 and fixedly bonded with a pulling plate 13, and the pulling plate 13 slidingly fits with the inner wall of the sleeve 11.

[0055] Specifically, such as Figure 2 and Figure 3 As shown, in the initial state, the pulling plate 13 is located at the rightmost side inside the sleeve 11. When the center rod 7 moves laterally in the hose 3, the center rod 7 will drive the pulling plate 13 to slide laterally in the sleeve 11; when the pulling plate 13 slides to the leftmost side inside the sleeve 11, it will pull the sleeve 11 to move to the left inside the hose 3, and the sleeve 11 will drive the pull rod 14 to move laterally in the hose 3, thereby pulling the inner side wall of the right side of the deformation layer 12 to move into the hose 3, thereby adjusting the shape of the deformation layer 12.

[0056] A streamlined curved ring 15 is fixedly mounted on the outer wall of the end of the hose 3 near the bracket 4. The diameter of the curved ring 15 decreases as it moves away from the suction port. As the hose 3 slides into the patient's trachea or bronchus, the streamlined design of the curved ring 15 reduces resistance between the hose and the inner walls of the trachea and bronchus. The front end of the curved ring 15 pushes sputum from the patient's trachea or bronchus forward, loosening it and facilitating its subsequent absorption into the hose 3 through the suction port. Furthermore, the curved ring 15 provides support for the inner walls of the patient's trachea and bronchus during movement.

[0057] The deformation layer 12 and the arc ring 15 are both made of silicone-paraffin composite materials. The silicone-paraffin composite materials exhibit typical plastic deformation characteristics at 37°C and deform only when external force is applied. After the force is removed, the deformation retention rate is ≥98%.

[0058] During the suction process, after the negative pressure generating mechanism 1 adsorbs the conical plate 6 to the right side of the conical mouth, due to the elastic force of the spring 5 and the patient's breathing, the conical plate 6 will vibrate slightly in the active cavity, thereby pulling the center rod 7 and the traction plate 13 to slide slightly in the middle of the sleeve 11. At this time, since the sliding range of the traction plate 13 is small, it cannot contact the left and right inner walls of the sleeve 11, and thus will not drive the sleeve 11 to move during the suction process. The pull rod 14 and the deformation layer 12 will not be subjected to additional external force. At this time, the shape of the deformation layer 12 will remain stable, thereby continuously supporting the inner wall of the trachea or bronchus.

[0059] When the negative pressure generating mechanism 1 is closed, the spring 5 will rebound quickly, causing the conical plate 6 to move to the right to block the conical mouth, and then push the center rod 7 and the pulling plate 13 to move to the rightmost side of the sleeve 11, and then push the sleeve 11 and the pull rod 14 to move to the right, so that the deformation layer 12 returns to its initial state.

[0060] When the center rod 7 slides slightly, the elastic rod 8 will also rotate slightly, thereby driving the sliding plate 9 to slide up and down slightly at the adsorption port. Since sputum has a certain viscosity, the sliding plate 9 can disperse the sputum when sliding up and down, reducing the viscosity of the sputum and reducing the risk of sputum adhering to the hose 3 and the connecting tube 2 during the subsequent flow process.

[0061] The specific implementation process is as follows:

[0062] In the initial state (such as Figure 2 As shown), the sliding plates 9 are all located in the adsorption port, and the negative pressure generating mechanism 1 is in a closed state.

[0063] by Figure 2 and Figure 3For example, during treatment, the medical staff first inserts the connecting tube 2 and the hose 3 into the patient's trachea through the patient's mouth. After reaching the designated position, the negative pressure generating mechanism 1 is activated. After the negative pressure generating mechanism 1 is activated, negative pressure is generated in the connecting tube 2, overcoming the elastic force of the spring 5, and then adsorbing the conical plate 6, causing the conical plate 6 to move to the right, so that the conical mouth is opened; at the same time, the conical plate 6 will drive the center rod 7 to slide to the left, and the center rod 7 will drive the elastic rod 8 to rotate, and then push the sliding plate 9 to slide away from the center rod 7, so that the adsorption mouth is opened. At this time, the negative pressure generating mechanism 1 will absorb the sputum from the adsorption mouth, the hose 3 and the connecting tube 2 into the negative pressure generating mechanism 1 in sequence, thereby performing sputum suction. At the same time, the center rod 7 will also pull the pulling plate 13 to slide to the left in the sleeve 11, thereby pushing the sleeve 11 and the pull rod 14 to slide to the left, and the pull rod 14 will pull the deformation layer 12 to deform. At this time, the width of the deformation layer 12 increases, thereby supporting the patient's trachea and bronchi.

[0064] When it is necessary to switch the suction position, the medical staff turns off the negative pressure generating mechanism 1 and adjusts the position of the connecting tube 2 and the hose 3; in this process, due to the loss of adsorption of the negative pressure generating mechanism 1, the spring 5 will rebound quickly, causing the conical plate 6 to slide to the right, blocking the conical mouth to prevent sputum from flowing back from the conical mouth; at the same time, the conical plate 6 will also drive the center rod 7 to slide to the right, and then drive the elastic rod 8 to rotate, and then pull the sliding plate 9 to slide in the direction close to the center rod 7, and block the adsorption port to prevent sputum from flowing back from the adsorption port; at the same time, the center rod 7 will also pull the pulling plate 13 to slide to the right in the sleeve 11, and then push the sleeve 11 and the pull rod 14 to slide to the right, and the pull rod 14 will push the deformation layer 12 to restore to its initial state. At this time, the width of the deformation layer 12 is reduced, reducing contact with the patient's trachea and bronchi, making it easier for the doctor to adjust the position of the connecting tube 2 and the hose 3.

[0065] In the prior art, when the suction position is switched, the sputum in the adsorption pipe will flow back into the patient's body due to the influence of the patient's breathing and gravity, seriously affecting the patient's treatment effect. This embodiment uses the design of the adsorption port and the sliding plate 9, and utilizes the adsorption effect of the negative pressure generating mechanism 1. When sputum needs to be adsorbed, the tapered plate 6 and the center rod 7 are used to pull the elastic rod 8 to rotate, so that the sliding plate 9 will slide outward from the suction port, allowing the sputum suction work to proceed normally. When the suction position needs to be switched, the negative pressure generating mechanism 1 is closed. Since the adsorption effect disappears, the tapered plate 6 rebounds under the action of the spring 5, and then drives the center rod 7 to reset. The elastic rod 8 will then drive the sliding plate 9 to reset, thereby quickly blocking the adsorption port and preventing sputum from flowing back, thereby effectively improving the patient's treatment effect.

[0066] Example 2:

[0067] As attached Figure 2-Figure 3As shown, different from the above embodiment, the suction ports are all conical, and the diameter of the suction port close to the center rod 7 is smaller than the diameter of the suction port away from the center rod 7.

[0068] The specific implementation process is as follows: Compared with the rectangular design, the conical design makes the adsorption port opening area larger, thereby expanding the adsorption area of the adsorption port and improving the adsorption effect.

[0069] Example 3:

[0070] As attached Figure 2-Figure 3 As shown, different from the above embodiment, a limiting ring 10 is provided on the outer sliding sleeve of the sleeve 11 , and the outer wall of the limiting ring 10 is fixedly bonded to the inner wall of the hose 3 near one end of the sleeve 11 .

[0071] The specific implementation process is as follows: the limiting ring 10 can limit the sleeve 11 so that when it slides horizontally in the hose 3, it can maintain stable movement under the limitation of the limiting ring 10, thereby preventing the sleeve 11 from tilting, causing the center rod 7 and the pulling plate 13 to be unable to move normally in the sleeve 11.

[0072] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A sputum removal nursing device for elderly patients with severe lung infection, comprising a negative pressure generating mechanism (1) and a connecting pipe (2) connected to the negative pressure generating mechanism (1), characterized in that: An adsorption component for adsorbing sputum is provided at the front end of the connecting tube (2); The adsorption component comprises a hose (3) connected to the end of the connecting pipe (2) away from the negative pressure generating mechanism (1), a plurality of adsorption ports are opened on the hose (3), a sliding plate (9) is slidably fitted in each of the adsorption ports, an elastic rod (8) is hingedly connected to the inner wall of the sliding plate (9), a central rod (7) is slidably fitted in the middle of the hose (3), and the end of the elastic rod (8) away from the sliding plate (9) is hingedly connected to the central rod (7); a driving component is provided in the hose (3) for driving the central rod (7) to slide horizontally in the hose (3) according to the opening and closing of the negative pressure generating mechanism (1); the negative pressure generated by the negative pressure generating mechanism (1) is used to drive the driving component to operate and provide suction for adsorbing sputum.

2. The sputum removal nursing device for elderly patients with severe lung infection according to claim 1 is characterized in that: The driving assembly comprises an active cavity formed in a hose (3), wherein an annular bracket (4) is fixedly connected to one end of the active cavity away from the center rod (7), a spring (5) is fixedly connected to one side of the bracket (4) close to the center rod (7), an end of the spring (5) away from the bracket (4) is fixedly connected to a conical plate (6), and a conical opening is formed at one end of the active cavity close to the conical plate (6); and an end of the conical plate (6) away from the spring (5) is fixedly connected to the center rod (7).

3. The sputum removal nursing device for elderly patients with severe lung infection according to claim 2 is characterized in that: The front end of the hose (3) is provided with a support assembly for supporting the patient's trachea when adsorbing sputum, and the support assembly includes a deformable layer (12) fixedly connected to the end of the hose (3) away from the connecting tube (2), and a pull rod (14) is provided in the hose (3), and the pull rod (14) extends away from the end of the hose (3) into the deformable layer (12) and is fixedly connected to the inner wall of the deformable layer (12); the hose (3) is provided with a traction assembly for pulling the pull rod (14) to move and thereby drive the deformable layer (12) to deform.

4. The sputum removal nursing device for elderly patients with severe lung infection according to claim 3 is characterized in that: The traction assembly includes a sleeve (11), a pull rod (14) having an end away from the deformation layer (12) and fixedly connected to the sleeve (11), a center rod (7) having an end away from the conical plate (6) extending into the sleeve (11) and fixedly connected to a pulling plate (13), and the pulling plate (13) slidingly cooperates with the inner wall of the sleeve (11); When the negative pressure generating mechanism starts to operate, the central rod (7) pulls the sleeve (11) to deform the deformation layer (12); when the negative pressure generating mechanism continues to operate, the pulling plate (13) floats inside the sleeve (11); when the negative pressure generating mechanism ends its operation, the central rod (7) pushes the sleeve (11) to restore the deformation layer (12).

5. The sputum removal nursing device for elderly patients with severe lung infection according to claim 4 is characterized in that: The minimum diameter of the tapered opening is smaller than the minimum diameter of the tapered plate (6) so as to limit the position of the tapered plate (6).

6. The sputum removal nursing device for elderly patients with severe lung infection according to claim 5, characterized in that: The adsorption ports are all conical, and the diameter of the adsorption port on the side close to the center rod (7) is smaller than the diameter of the adsorption port on the side away from the center rod (7).

7. The sputum removal nursing device for elderly patients with severe lung infection according to claim 6, characterized in that: The outer sliding sleeve of the sleeve (11) is provided with a limiting ring (10), and the outer side wall of the limiting ring (10) is fixedly connected to the inner side wall of the hose (3) close to one end of the sleeve (11).

8. The sputum removal nursing device for elderly patients with severe lung infection according to claim 7, characterized in that: A streamlined arc-shaped ring (15) is provided on the fixed sleeve of the outer wall of the hose (3) close to one end of the bracket (4), and the diameter of the arc-shaped ring (15) decreases in a direction away from the adsorption port.

9. The sputum removal nursing device for elderly patients with severe lung infection according to claim 8, characterized in that: The elastic rod (8) is made of biocompatible material.

10. The sputum removal nursing device for elderly patients with severe lung infection according to claim 9, characterized in that: The deformation layer (12) and the arc-shaped ring (15) are both made of a silica gel-paraffin composite material.

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