A sputum suction device

Abstract

The application provides a sputum suction device, which comprises a ventilation catheter, a transition pipe, an air feeding catheter, a breathing machine, a negative pressure machine, a driving mechanism, a connecting pipe and a blocking box assembly; the ventilation catheter and the transition pipe are in communication, one end of the air feeding catheter is in communication with the transition pipe, and the other end is in communication with the breathing machine; the negative pressure machine and the connecting pipe are in communication with the transition pipe respectively, the blocking box assembly is slidably arranged in the connecting pipe, the blocking box assembly can pass through the negative pressure and block sputum; a light touch switch is arranged on the negative pressure machine, the driving mechanism is arranged on the negative pressure machine, the driving mechanism can intermittently and continuously press the light touch switch and the blocking box assembly, so that the blocking box assembly slides into the transition pipe and abuts against the inner wall of the transition pipe, and the blocking box assembly can be reset when the driving mechanism is pressed. The sputum suction device can suction sputum from a patient at intervals without reinserting the ventilation catheter into the sputum suction device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of respiratory treatment, in particular to a sputum suction device. BACKGROUND

[0002] Tracheostomy ventilation catheter is the most common emergency measure in clinical rescue of acute respiratory failure and rescue of patient's life, but the open airway after operation will cause other problems: patients with respiratory diseases usually have more sputum secretion, and medical staff often need to connect the ventilation catheter with the sputum suction device for the patient to suck sputum at certain intervals, and the existing sputum suction device cannot realize sputum suction without operation, thus increasing the workload of medical staff and being more troublesome. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a sputum suction device to solve the technical problem of needing medical staff to connect the ventilation catheter with the sputum suction device for the patient to suck sputum at certain intervals after tracheostomy ventilation catheter.

[0004] To solve the technical problem, the technical scheme adopted by the present application is:

[0005] A sputum suction device, comprising a ventilation catheter, a transition pipe, an air supply catheter, a breathing machine, a negative pressure machine, a driving mechanism, a connecting pipe and a blocking box assembly;

[0006] The ventilation catheter and the transition pipe are in communication, one end of the air supply catheter is in communication with the transition pipe, and the other end is connected with the breathing machine;

[0007] The negative pressure machine and the connecting pipe are respectively in communication with the transition pipe, the blocking box assembly is slidably arranged in the connecting pipe, the blocking box assembly can pass through negative pressure and block sputum, a light touch switch is arranged on the negative pressure machine, the driving mechanism is arranged on the negative pressure machine, the driving mechanism can intermittently and continuously press the light touch switch and the blocking box assembly, so that the blocking box assembly slides into the transition pipe and abuts against the inner wall of the transition pipe, and the blocking box assembly can be reset when the driving mechanism is pressed.

[0008] Further, the driving mechanism comprises a dialing assembly, a driven assembly and a pressing assembly; the dialing assembly and the driven assembly are respectively rotatably arranged on the negative pressure machine, and the dialing assembly can intermittently rotate the driven assembly; the pressing assembly is slidably arranged on the negative pressure machine, and the rotation of the driven assembly can drive the pressing assembly to press the light touch switch and the blocking box assembly respectively, so that the blocking box assembly slides; and the sliding assembly can be reset after the driven assembly stops rotating.

[0009] Further, the dialing assembly comprises a motor, a driving shaft, a rotating disc, a dialing rod and an arc-shaped block; the motor is arranged on the negative pressure machine; the driving shaft is connected with the output shaft of the motor; the rotating disc is coaxially arranged on the driving shaft; the dialing rod is eccentrically arranged on the rotating disc and can intermittently drive the driven assembly to rotate; and the arc-shaped block is coaxially arranged on the rotating disc and can limit the rotation of the driven assembly.

[0010] Further, the driven assembly comprises a driven shaft, a grooved wheel and an incomplete gear; the driven shaft is rotatably arranged on the negative pressure machine; the grooved wheel and the incomplete gear are coaxially arranged on the driven shaft; the dialing rod can intermittently drive the grooved wheel to rotate; the arc-shaped block can limit the rotation of the grooved wheel; and the rotation of the driven shaft can drive the incomplete gear to slide the extrusion assembly and then move away from the extrusion assembly.

[0011] Further, the extrusion assembly comprises a driven gear, a rack, a flexible pad, a return spring, a fixed plate and an extrusion rod; the driven gear is rotatably arranged on the negative pressure machine and can be engaged with the incomplete gear; the two racks are slidably arranged and oppositely arranged; one of the racks is provided with the flexible pad at one end close to the microswitch and can slide towards the microswitch; the other rack is provided with the extrusion rod at one end away from the microswitch and can slide towards the blocking box assembly; the extrusion rod can extrude the blocking box assembly to make it slide into the transition pipe; and the fixed plate is arranged on the negative pressure machine and connected with one of the racks through the return spring.

[0012] Further, a replacement pipe is arranged; the side walls of the replacement pipe and the connecting pipe are provided with openings and are in communication with each other; and when the blocking box assembly is not extruded, the opening of the blocking box assembly faces the opening of the replacement pipe.

[0013] Further, the blocking box assembly comprises a top plate, a back plate, two extension plates, a bottom plate and a supporting spring; the top plate and the back plate are connected to form an L-shaped plate and the opening faces the air duct; the two extension plates are arranged at two ends of the top plate respectively; the bottom plate is rotatably arranged on the back plate and connected with the extension ends of the two extension plates; the bottom plate is close to the extension plates and the back plate; and when the bottom plate moves away from the transition pipe, it is inclined downward to the opening of the replacement pipe.

[0014] Further, the replacement pipe is detachably arranged on the connecting pipe.

[0015] Compared with the prior art, the application has the following advantages:

[0016] When the driving mechanism is started, the light touch switch is intermittently pressed to start the negative pressure machine to generate negative pressure, and meanwhile, the driving mechanism presses the blocking box assembly to make the blocking box assembly slide into the transition pipe, and the blocking box assembly abuts against the inner wall of the transition pipe. At this time, due to the negative pressure generated by the negative pressure machine, sputum is sucked into the transition pipe until being blocked by the blocking box assembly. During the interval of the working of the negative pressure machine, the blocking box assembly is reset to drive the sputum away from the transition pipe, so that the transition pipe is kept relatively clean and away from the air suction passage. Thus, the function of automatically sucking sputum from the patient at intervals is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application, the drawings required to be used in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0018] Figure 1 A schematic diagram of a sputum suction device provided by an embodiment of the present application is shown in

[0019] Figure 2 A schematic diagram of a sputum suction device provided by an embodiment of the present application is shown in Figure 1

[0020] Figure 3 A schematic diagram of a sputum suction device provided by an embodiment of the present application is shown in Figure 1

[0021] Figure 4 A schematic diagram of a sputum suction device provided by an embodiment of the present application is shown in

[0022] Reference signs:

[0023] Ventilation catheter 1, transition pipe 2, air supply catheter 3, breathing machine 4, negative pressure machine 5, light touch switch 51, driving mechanism 6, actuating assembly 61, motor 611, driving shaft 612, rotating disc 613, actuating rod 614, arc block 615, driven assembly 62, driven rotating rod 621, grooved wheel 622, incomplete gear 623, pressing assembly 63, driven gear 631, rack 632, flexible pad 633, reset spring 634, fixed plate 635, pressing rod 636, connecting pipe 7, blocking box assembly 8, top plate 81, back plate 82, telescopic plate 83, bottom plate 84, supporting spring 85, replacement pipe 9. DETAILED DESCRIPTION

[0024] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0025] Please refer to Figures 1-4 ​​The embodiment provides a sputum suction device which comprises a ventilation catheter 1, a transition pipe 2, an air feeding catheter 3, a breathing machine 4, a negative pressure machine 5, a driving mechanism 6, a connecting pipe 7 and a blocking box assembly 8.

[0026] The ventilation catheter 1 and the transition pipe 2 are in communication, one end of the air feeding catheter 3 is in communication with the transition pipe 2, and the other end is in communication with the breathing machine 4. It should be understood that the ventilation catheter 1 is in communication with the trachea.

[0027] The negative pressure machine 5 and the connecting pipe 7 are in communication with the transition pipe 2 respectively, the blocking box assembly 8 is slidably arranged in the connecting pipe 7, the blocking box assembly 8 can pass through the negative pressure and block the sputum; the negative pressure machine 5 is provided with a microswitch 51, the driving mechanism 6 is arranged on the negative pressure machine 5, the driving mechanism 6 can intermittently and continuously press the microswitch 51 and the blocking box assembly 8, so that the blocking box assembly 8 slides into the transition pipe 2 and abuts against the inner wall of the transition pipe 2, when the driving mechanism 6 is pressed, the blocking box assembly 8 can be reset. It should be understood that the blocking box assembly 8 can divide the transition pipe 2 into two parts which are not in communication after sliding, the blocking box assembly 8 has an opening, the sputum is driven into the blocking box assembly 8 by the negative pressure generated by the negative pressure machine 5, and after the negative pressure machine 5 stops working, the blocking box assembly 8 is reset to drive the sputum away from the transition pipe 2 into the connecting pipe 7.

[0028] When the driving mechanism 6 is started, the microswitch 51 can be intermittently pressed to start the negative pressure machine 5 to generate negative pressure, at the same time, the driving mechanism 6 presses the blocking box assembly 8 to make the blocking box assembly 8 slide into the transition pipe 2, and the blocking box assembly 8 abuts against the inner wall of the transition pipe 2, at this time, because the negative pressure machine 5 generates negative pressure, the sputum is sucked into the transition pipe 2 until being blocked by the blocking box assembly 8; during the interval of the working of the negative pressure machine 5, the blocking box assembly 8 is reset to drive the sputum away from the transition pipe 2, so that the transition pipe 2 is kept relatively clean and away from the airway. Thus, the sputum suction of the patient is automatically realized every certain period of time.

[0029] In other solutions, the driving mechanism 6 comprises a driving assembly 61, a driven assembly 62 and a pressing assembly 63; the driving assembly 61 and the driven assembly 62 are rotatably arranged on the negative pressure machine 5 respectively, the driving assembly 61 can intermittently drive the driven assembly 62 to rotate; the pressing assembly 63 is slidably arranged on the negative pressure machine 5, the rotation of the driven assembly 62 can drive the pressing assembly 63 to press the micro switch 51 and the blocking box assembly 8 respectively, so that the blocking box assembly 8 slides; the sliding assembly can reset after the driven assembly 62 stops rotating. It should be understood that the driving assembly 61 as a power source can continuously rotate, and the driving assembly 61 drives the driven assembly 62 to rotate by a certain angle every time it rotates one circle. In the initial state, the rotation of the driven assembly 62 drives the pressing assembly 63 to slide and then leaves the pressing assembly 63, so that the pressing assembly 63 resets after being pressed to the micro switch 51 and the blocking box assembly 8 respectively and losing the power source. That is, the driven assembly 62 completes the driving and leaving of the pressing assembly 63 in one rotation. It should be known that not every rotation of the driven assembly 62 can drive the pressing assembly 63 to slide, but every rotation that can drive the pressing assembly 63 to slide will eventually leave the pressing assembly 63, so that the driven assembly 62 can drive the pressing assembly 63 to slide again after several rotations, so that the sputum suction gap is longer each time and more meets the sputum suction demand.

[0030] In other solutions, the driving assembly 61 comprises a motor 611, a driving shaft 612, a rotating disc 613, a driving rod 614 and an arc block 615; the motor 611 is arranged on the negative pressure machine 5, the driving shaft 612 is connected with the output shaft of the motor 611, the rotating disc 613 is coaxially and fixedly arranged on the driving shaft 612, the driving rod 614 is eccentrically arranged on the rotating disc 613 and can intermittently drive the driven assembly 62 to rotate; the arc block 615 is coaxially arranged on the rotating disc 613 and can limit the rotation of the driven assembly 62 in the rotation gap.

[0031] In other solutions, the driven assembly 62 comprises a driven rotating rod 621, a grooved wheel 622 and an incomplete gear 623; the driven rotating rod 621 is rotatably arranged on the negative pressure machine 5, the grooved wheel 622 and the incomplete gear 623 are coaxially and fixedly arranged on the driven rotating rod 621 respectively, the driving rod 614 can intermittently drive the grooved wheel 622 to rotate, and the arc block 615 can limit the rotation of the grooved wheel 622 in the rotation gap; the rotation of the driven rotating rod 621 can drive the incomplete gear 623 to drive the pressing assembly 63 to slide and then leave the pressing assembly 63.

[0032] It should be understood that the driving rod 614 and the arc block 615 do not abut against the grooved wheel 622 at the same time, and one of them always abuts against the grooved wheel 622, which avoids the accidental rotation of the grooved wheel 622 in the rotation gap. In one rotation process, the incomplete gear 623 drives the pressing assembly 63 to slide and then leaves the pressing assembly 63, and the pressing assembly 63 resets after losing the power source.

[0033] In other solutions, the pressing assembly 63 comprises a driven gear 631, a rack 632, a flexible pad 633, a return spring 634, a fixed plate 635 and a pressing rod 636; the driven gear 631 is rotatably arranged on the negative pressure machine 5 and can be engaged with the incomplete gear 623; the two racks 632 are slidably arranged and oppositely arranged; one rack 632 is provided with the flexible pad 633 at one end close to the micro switch 51 and can slide towards the micro switch 51; the other rack 632 is provided with the pressing rod 636 at one end away from the micro switch 51 and can slide towards the blocking box assembly 8, the pressing rod 636 can press the blocking box assembly 8 to make it slide into the transition pipe 2; the fixed plate 635 is arranged on the negative pressure machine 5 and connected with one rack 632 through the return spring 634. It should be understood that the flexible pad 633 is deformed with the sliding of the rack 632 after abutting against the micro switch 51, thereby keeping continuous pressing on the micro switch 51; the end of the pressing rod 636 has an inclined surface, the pressing rod 636 passes through the connecting pipe 7 and presses the top surface of the blocking box assembly 8 during the sliding process, thereby making the blocking box assembly 8 slide into the transition pipe 2.

[0034] In other solutions, the replacement pipe 9 is also provided, the side walls of the replacement pipe 9 and the connecting pipe 7 are provided with openings and are communicated with each other, and the opening of the blocking box assembly 8 faces the opening of the replacement pipe 9 when the blocking box assembly 8 is not pressed. When the sputum is sucked into the blocking box assembly 8 by the negative pressure, the opening of the blocking box assembly 8 faces the opening of the replacement pipe 9, and after the blocking box assembly 8 is reset, the sputum will slide along the direction of the opening of the blocking box assembly 8 and flow into the replacement pipe 9 due to the viscosity and flowability of the sputum, thereby reducing the residue of the sputum in the connecting pipe 7 and the blocking box assembly 8, and only the replacement pipe 9 needs to be cleaned during cleaning.

[0035] In other solutions, the blocking box assembly 8 comprises a top plate 81, a back plate 82, two telescopic plates 83, a bottom plate 84 and a supporting spring 85; the top plate 81 and the back plate 82 are connected into an L-shaped plate with the opening facing the airway catheter 1; the two telescopic plates 83 are arranged at the two ends of the top plate 81 respectively; the bottom plate 84 is rotatably arranged on the back plate 82 and connected with the telescopic ends of the two telescopic plates 83, the bottom plate 84 is tightly attached to the telescopic plates 83 and the back plate 82, and the bottom plate 84 is obliquely downward towards the opening of the replacement pipe 9 when it is away from the transition pipe 2. It should be understood that the bottom plate 84 is obliquely downward towards the opening of the replacement pipe 9 when it is in a natural state, which is the lower dead point of the bottom plate 84; when the blocking box assembly 8 falls into the transition pipe 2, the bottom plate 84 is pressed to rotate upward and drive the telescopic plates 83 to shorten; when the blocking box assembly 8 is reset under the action of the supporting spring 85, the bottom plate 84 rotates downward under the action of gravity and towards the opening of the replacement pipe 9.

[0036] In other solutions, the replacement pipe 9 is detachably arranged on the connecting pipe 7. By being detachable, it is more convenient to clean, and only the clean replacement pipe 9 needs to be replaced when cleaning is needed.

[0037] The sputum suction device can suction sputum from the patient at intervals without reinserting the ventilation catheter into the sputum suction device.

[0038] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A sputum suction device, characterized by, The utility model provides a ventilation conduit, transition pipe, air supply conduit, breathing machine, negative pressure machine, drive mechanism, connecting pipe and blocking box assembly are included; The ventilation conduit and the transition pipe are communicated, one end of the air supply conduit is communicated with the transition pipe, and the other end is communicated with the breathing machine; The negative pressure machine and the connecting pipe are communicated with the transition pipe respectively, the blocking box assembly is slidably arranged in the connecting pipe, the blocking box assembly can pass through negative pressure and block sputum, a touch switch is arranged on the negative pressure machine, and the drive mechanism is arranged on the negative pressure machine; The drive mechanism includes a driving assembly, a driven assembly and a pressing assembly; the driving assembly and the driven assembly are rotatably arranged on the negative pressure machine respectively, the driving assembly can drive the driven assembly to rotate intermittently; the pressing assembly is slidably arranged on the negative pressure machine, and the rotation of the driven assembly can drive the pressing assembly to press the touch switch and the blocking box assembly respectively, so that the negative pressure machine generates negative pressure and the blocking box assembly slides; after the negative pressure machine stops working, the blocking box assembly resets.

2. The sputum aspirator according to claim 1, characterized in that, The driving assembly includes a motor, a driving shaft, a rotating disc, a driving rod and an arc block; the motor is arranged on the negative pressure machine, the driving shaft is connected with the output shaft of the motor, the rotating disc is coaxially fixed on the driving shaft, the driving rod is eccentrically arranged on the rotating disc and can intermittently drive the driven assembly to rotate; and the arc block is coaxially arranged on the rotating disc and can limit the rotation of the driven assembly.

3. The sputum aspirator according to claim 2, characterized in that, The driven assembly includes a driven shaft, a groove wheel and an incomplete gear; the driven shaft is rotatably arranged on the negative pressure machine, the groove wheel and the incomplete gear are coaxially fixed on the driven shaft respectively, the driving rod can intermittently drive the groove wheel to rotate, and the arc block can limit the rotation of the groove wheel; and the rotation of the driven shaft can drive the incomplete gear to slide the pressing assembly and then leave the pressing assembly.

4. The sputum aspirator according to claim 3, characterized in that, The pressing assembly includes a driven gear, a rack, a flexible pad, a reset spring, a fixed plate and a pressing rod; the driven gear is rotatably arranged on the negative pressure machine and can be engaged with the incomplete gear; the two racks are slidably arranged and oppositely arranged; one end of the rack close to the touch switch is provided with the flexible pad and can slide towards the touch switch; the other end of the other rack away from the touch switch is provided with the pressing rod and can slide towards the blocking box assembly, the pressing rod can press the blocking box assembly to slide into the transition pipe; and the fixed plate is arranged on the negative pressure machine and connected with one rack through the reset spring.

5. The sputum aspirator according to claim 4, characterized in that, A replacement pipe is further arranged, the replacement pipe and the side wall of the connecting pipe are provided with openings and are communicated with each other, when the blocking box assembly is not pressed, the opening of the blocking box assembly faces the opening of the replacement pipe.

6. The sputum aspirator according to claim 5, characterized in that, The blocking box assembly comprises a top plate, a back plate, two telescopic plates, a bottom plate and supporting springs; the top plate and the back plate are connected to form an L-shaped plate, and the opening faces the air duct; the two telescopic plates are arranged at the two ends of the top plate respectively; the bottom plate is rotatably arranged on the back plate and connected to the telescopic ends of the two telescopic plates; the bottom plate is close to the telescopic plates and the back plate; when the bottom plate is away from the transition pipe, it is inclined downward to the opening of the replacement pipe.

7. The sputum aspirator according to claim 6, characterized in that The replacement pipe is detachably arranged on the connecting pipe.

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