A sputum inhalable respirator
By designing a suction-type ventilator, a combination of a connecting tube, a clamping component, and a rotating component is used to achieve synchronous movement of the suction tube and the breathing tube. This solves the problem of the cumbersome operation of having to push the oxygen tube and the suction tube twice in the existing technology, improves suction efficiency, and meets the demand for high-flow oxygen therapy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- THE 958TH ARMY HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY
- Filing Date
- 2024-03-14
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, critically ill patients need to push the oxygen tube and suction tube twice to perform suctioning when wearing a mask for oxygen inhalation, which is cumbersome and does not meet the requirements for high-flow oxygen inhalation.
Design a suction-type respirator that achieves synchronous movement of the suction tube and the breathing tube through a combination of a connecting tube, a clamping component, a rotating component, and a driven component, allowing suctioning to be completed with a single action.
It simplifies the suctioning procedure, meets the needs of high-flow oxygen therapy, reduces the number of steps and time required, and improves suctioning efficiency.
Smart Images

Figure CN117942469B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of respiratory therapy technology, and more specifically to a suction-type respirator. Background Technology
[0002] In clinical practice, critically ill patients often require high-flow oxygen therapy via face mask and need suctioning at any time. However, if suctioning is needed while the patient is receiving oxygen via face mask, the face mask must be loosened, the suction catheter inserted into the patient's mouth, and the face mask must be secured after suctioning. Alternatively, the oxygen mask can be replaced with a nasal cannula. This process is cumbersome, time-consuming, and the nasal cannula may not be able to meet the high-flow oxygen demand.
[0003] To solve this problem, relevant designers proposed an oxygen mask for easy suctioning, as shown in CN212522645U. This device works by pushing an oxygen tube into the patient's mouth and then pushing the suction tube inside the oxygen tube, so that the suction tube can enter the patient's throat through the oxygen tube for suctioning.
[0004] However, the process requires pushing the oxygen tube and suction tube separately twice, which is still quite complicated. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention proposes a suction-type respirator to solve the technical problem mentioned in the background art, which requires two separate pushes of the oxygen tube and suction tube to perform suctioning.
[0006] To solve this technical problem, the technical solution adopted by the present invention is as follows:
[0007] A suction-type ventilator includes a ventilator and a suction machine, and also includes a breathing mask, a connecting tube, a clamping assembly, a breathing tube, a rotating assembly, a suction tube, and a driven assembly;
[0008] The connecting tube passes through the breathing mask, the clamping assembly is slidably passed through the connecting tube, and the breathing tube passes through the clamping assembly;
[0009] The rotating assembly is rotatably and obliquely inserted into the connecting tube, and the suction tube is screwed onto the rotating assembly and inserted into the breathing tube through the rotating assembly.
[0010] The driven component is rotatably disposed on the connecting pipe and connected to the clamping component. The rotating component can drive the driven component to rotate, the driven component can drive the clamping component to slide, and the rotating component can continue to rotate after the clamping component slides to the farthest point.
[0011] The suction tube is connected to the suction machine, and the breathing tube is connected to the ventilator.
[0012] Furthermore, the clamping assembly includes a clamping ring and an elastic connecting rope; the clamping ring is slidably connected inside the communicating tube and can hold the breathing tube in place; one end of the elastic connecting rope is connected to the clamping ring, and the other end is connected to the driven assembly.
[0013] Furthermore, the driven component includes a driven shaft and a driven bevel gear; the driven shaft is rotatably connected to the connecting pipe, the driven bevel gear is coaxially fixed to the driven shaft, the elastic connecting rope is connected to the driven shaft, and the rotating component can drive the driven bevel gear to rotate.
[0014] Furthermore, the rotating assembly includes a rotating tube and a driving bevel gear ring; the rotating tube is obliquely rotatably connected to the connecting tube and communicates with the inside of the connecting tube, and the suction tube is screwed into the rotating tube; the driving bevel gear ring is coaxially fixed on the rotating tube and meshes with the driven bevel gear.
[0015] Furthermore, the connecting pipe is also provided with a limiting mechanism, which can restrict the driven shaft from reversing.
[0016] Furthermore, the limiting mechanism includes a ratchet and a pawl assembly; the ratchet is coaxially fixed on the driven shaft, and the pawl assembly is rotatably mounted on the connecting pipe and can restrict the ratchet from reversing.
[0017] Furthermore, the pawl assembly includes a connecting shaft, a pawl, and a torsion spring; the connecting shaft is disposed on the connecting pipe, the pawl is rotatably disposed on the connecting shaft and connected to the connecting pipe through the torsion spring, and the pawl can restrict the rotation of the ratchet.
[0018] Furthermore, the connecting pipe is also provided with an elongated hole.
[0019] The advancements of this application compared to existing technologies are as follows:
[0020] Because the suction catheter is screwed onto both the breathing tube and the rotating assembly, when the rotating assembly rotates, it causes the suction catheter to slide deeper into the breathing tube. Since the rotating assembly can also drive the clamping assembly to slide via the driven assembly, when it is necessary to extend the suction catheter, simply rotating the rotating assembly simultaneously moves both the breathing tube and the suction catheter deeper into the patient's mouth. When the breathing tube has moved sufficiently, it will stop sliding due to the clamping assembly reaching its maximum movable point. Continuing to rotate the rotating assembly at this point allows the suction catheter to extend further into the patient's throat for suctioning. Thus, a single action enables the simultaneous movement of both the breathing tube and the suction catheter, with the breathing tube stopping when it has reached sufficient depth while the suction catheter continues to move. Attached Figure Description
[0021] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0022] Figure 1 This is a schematic diagram of a suction-type respirator provided in an embodiment of the present invention;
[0023] Figure 2 for Figure 1 A schematic cross-sectional view of a suction-type ventilator is shown.
[0024] Figure 3 for Figure 1 An enlarged schematic diagram of point A is shown.
[0025] Figure label:
[0026] Breathing mask 1
[0027] Connecting pipe 2,
[0028] Clamping assembly 3, clamping ring 31, elastic connecting rope 32
[0029] 4. Breathing tube
[0030] Rotating assembly 5, rotating tube 51, driving bevel gear ring 52,
[0031] 6. Suction tube
[0032] Driven assembly 7, driven shaft 71, driven bevel gear 72
[0033] Limiting mechanism 8, ratchet 81, pawl assembly 82, connecting shaft 821, pawl 822, torsion spring 823. Detailed Implementation
[0034] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.
[0035] Please refer to the following: Figures 1-3 This embodiment provides a suction-type ventilator, including a ventilator and a suction machine, and also includes a breathing mask 1, a connecting tube 2, a clamping assembly 3, a breathing tube 4, a rotating assembly 5, a suction tube 6, and a driven assembly 7;
[0036] The connecting tube 2 is inserted through the breathing mask 1, the clamping assembly 3 is slidably inserted through the connecting tube 2, and the breathing tube 4 is inserted inside the clamping assembly 3. It should be understood that the connecting tube 2 and the breathing mask 1 are connected internally, the clamping assembly 3 clamps the breathing assembly, and the clamping assembly 3 can drive the breathing tube 4 to slide under the premise of leaving sufficient ventilation.
[0037] The rotating component 5 is rotatably obliquely inserted into the connecting tube 2. The suction tube 6 is screwed onto the rotating component 5 and inserted into the breathing tube 4 through the rotating component 5. Specifically, the breathing tube 4 has a threaded hole on its side wall. The suction tube 6 is also screwed into the threaded hole of the breathing tube 4 and placed inside the breathing tube 4. It should be understood that the threaded hole on the breathing tube 4 is obliquely arranged and is only located on one side, and does not radially penetrate the breathing tube 4.
[0038] The driven component 7 is rotatably disposed on the connecting pipe 2 and connected to the clamping component 3. The rotating component 5 can drive the driven component 7 to rotate, the driven component 7 can drive the clamping component 3 to slide, and the rotating component 5 can continue to rotate after the clamping component 3 slides to the farthest point.
[0039] Suction tube 6 is connected to the suction machine, and breathing tube 4 is connected to the ventilator.
[0040] Since the suction tube 6 is screwed onto the breathing tube 4 and the rotating assembly 5 respectively, when the rotating assembly 5 rotates, it will cause the suction tube 6 to slide deeper into the breathing tube 4. Furthermore, since the rotating assembly 5 can drive the clamping assembly 3 to slide via the driven assembly 7, when it is necessary to extend the suction tube 6, simply rotating the rotating assembly 5 will simultaneously move both the breathing tube 4 and the suction tube 6 deeper into the patient's mouth. When the breathing tube 4 has moved sufficiently, it will stop sliding due to the clamping assembly 3 reaching its maximum movable point. Continuing to rotate the rotating assembly 5 at this point will allow the suction tube 6 to continue extending deeper into the patient's throat for suctioning. Thus, a single action can simultaneously move both the breathing tube 4 and the suction tube 6, with the breathing tube 4 stopping when it has reached sufficient depth while the suction tube 6 continues to move.
[0041] In other embodiments, the clamping assembly 3 includes a clamping ring 31 and an elastic connecting rope 32; the clamping ring 31 is slidably connected within the communicating tube 2 and holds the breathing tube 4 in place; one end of the elastic connecting rope 32 is connected to the clamping ring 31, and the other end is connected to the driven assembly 7. It should be understood that the clamping ring 31 will stop sliding when it approaches the breathing mask 1, while the elastic connecting rope 32 will undergo elastic deformation and continue to wrap around the rotating assembly 5. Specifically, the interference of the clamping ring 31 with the breathing tube 4 is 0.1–0.3 cm.
[0042] In other embodiments, the driven component 7 includes a driven shaft 71 and a driven bevel gear 72; the driven shaft 71 is rotatably connected to the connecting pipe 2, the driven bevel gear 72 is coaxially fixed to the driven shaft, the elastic connecting rope 32 is connected to the driven shaft 71, and the rotating component 5 can drive the driven bevel gear 72 to rotate. It should be understood that the elastic rope will gradually wrap around the driven shaft as it rotates.
[0043] In other embodiments, the rotating assembly 5 includes a rotating tube 51 and a driving bevel gear ring 52; the rotating tube 51 is obliquely rotatably connected to the connecting tube 2 and communicates with the inside of the connecting tube 2, and the suction tube 6 is screwed into the rotating tube 51; the driving bevel gear ring is coaxially fixed on the rotating tube 51 and meshes with the driven bevel gear 72.
[0044] In other designs, the connecting tube 2 is also equipped with a limiting mechanism 8, which restricts the driven rotating shaft 71 from reversing. It should be understood that the direction in which the clamping ring 31 slides toward the breathing mask 1 is forward rotation, and the direction in which the clamping ring 31 moves away from the breathing mask 1 is reverse rotation. By adding the limiting mechanism 8, it is easier to prevent the elastic connecting rope 32 from spontaneously driving the driven shaft to rotate in reverse, thereby preventing the suction tube 6 from being accidentally pulled out before suctioning is completed.
[0045] In other embodiments, the limiting mechanism 8 includes a ratchet 81 and a pawl 822 assembly 82; the ratchet 81 is coaxially fixed on the driven shaft 71, and the pawl 822 assembly 82 is rotatably disposed on the connecting pipe 2 and can limit the ratchet 81 from reversing.
[0046] In other embodiments, the pawl 822 assembly 82 includes a connecting shaft 821, a pawl 822, and a torsion spring 823; the connecting shaft 821 is disposed on the connecting pipe 2, and the pawl 822 is rotatably disposed on the connecting shaft 821 and connected to the connecting pipe 2 via the torsion spring 823; the pawl 822 can restrict the rotation of the ratchet 81. It should be understood that the pawl 822 can restrict the ratchet 81 from reversing.
[0047] In other designs, the connecting tube 2 is also provided with an elongated hole. This elongated hole facilitates inspection of the connection between the suction tube 6 and the breathing tube 4.
[0048] It should be understood that the breathing mask 1 can be secured to the patient by straps or the like.
[0049] In addition, it is worth mentioning that the end of the connecting tube 2 near the breathing mask 1 can also be inserted into the endotracheal tube, so that the suction tube 6 can enter the suction tube through the connecting tube 2; the breathing mask 1 is tied to the patient's face or neck according to the position of the endotracheal tube, which can protect the endotracheal tube from accidental collisions and slippage.
[0050] Compared with the prior art, this application can insert the oxygen tube into the patient's mouth and the suction tube into the patient's throat by rotating the rotating assembly.
[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.
Claims
1. A suction-type ventilator, comprising a ventilator and a suction machine, characterized in that, It also includes a breathing mask, a connecting tube, a clamping assembly, a breathing tube, a rotating assembly, a suction catheter, and a driven assembly; The connecting tube passes through the breathing mask, the clamping assembly is slidably passed through the connecting tube, the breathing tube passes through the clamping assembly, the clamping assembly clamps the breathing tube, and the clamping assembly can drive the breathing tube to slide; the clamping assembly includes a clamping ring and an elastic connecting rope; the clamping ring is slidably connected to the connecting tube and can clamp the breathing tube; one end of the elastic connecting rope is connected to the clamping ring, and the other end is connected to the driven assembly; The rotating assembly is rotatably and obliquely inserted into the connecting tube. The suction tube is screwed onto the rotating assembly and inserted into the breathing tube through the rotating assembly. The breathing tube has a threaded hole on its side wall. The suction tube is also screwed into the threaded hole of the breathing tube and placed inside the breathing tube. The driven component is rotatably disposed on the connecting pipe and connected to the clamping component. The rotating component can drive the driven component to rotate, the driven component can drive the clamping component to slide, and the rotating component can continue to rotate after the clamping component slides to the farthest point. Rotating the rotating assembly can simultaneously drive the breathing tube and the suction tube to move deeper into the patient's oral cavity. The suction tube is connected to the suction machine, and the breathing tube is connected to the ventilator. The driven component includes a driven shaft and a driven bevel gear; the driven shaft is rotatably connected to the connecting pipe, the driven bevel gear is coaxially fixed on the driven shaft, the elastic connecting rope is connected to the driven shaft, and the rotating component can drive the driven bevel gear to rotate; After the clamping ring slides to its farthest point and stops sliding, the elastic connecting rope will undergo elastic deformation and continue to wind around the driven rotating shaft, so that the rotating component can continue to drive the suction tube to continue moving. The rotating assembly includes a rotating tube and a driving bevel gear ring; the rotating tube is obliquely rotatably connected to the connecting tube and communicates with the inside of the connecting tube, and the suction tube is screwed into the rotating tube; the driving bevel gear ring is coaxially fixed on the rotating tube and meshes with the driven bevel gear.
2. The suction-type respirator according to claim 1, characterized in that, The connecting pipe is also provided with a limiting mechanism, which can restrict the driven shaft from reversing.
3. A suction-type respirator according to claim 2, characterized in that, The limiting mechanism includes a ratchet and a pawl assembly; the ratchet is coaxially fixed on the driven shaft, and the pawl assembly is rotatably mounted on the connecting pipe and can restrict the ratchet from reversing.
4. A suction-type respirator according to claim 3, characterized in that, The pawl assembly includes a connecting shaft, a pawl, and a torsion spring; the connecting shaft is disposed on the connecting pipe, the pawl is rotatably disposed on the connecting shaft and connected to the connecting pipe through the torsion spring, and the pawl can restrict the rotation of the ratchet.
5. A suction-type respirator according to claim 4, characterized in that, The connecting pipe is also provided with an elongated hole.