Anti-occupation replacement-free sealed sputum suction tube

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an anti-occupation replacement-free sealed sputum suction tube. The sputum suction tube comprises a sputum suction tube body, a negative pressure connecting part and a breathing machine connecting tube are arranged on the two sides of the sputum suction tube body respectively, a sputum suction tube inner cavity is formed in the sputum suction tube body, a fixed sliding table is arranged at the bottom of the sputum suction tube body, and a petal-shaped intubation tube sealing assembly is arranged in the fixed sliding table. The valve-shaped cannula sealing assembly can rotate along the side close to an inner cavity of the sputum suction tube, a fiberscope is arranged on the side, away from an opening of the inner cavity of the sputum suction tube, of the sputum suction tube body, the fiberscope is connected with the fixed sliding table through a fiberscope connecting sliding piece, and the fiberscope connecting sliding piece is in sliding fit with the fixed sliding table. A switchable structure is adopted, the space occupying problem of the sputum suction tube and the fiberscope is solved, offline is not needed when the sputum suction tube and the fiberscope are switched, operation of medical staff is greatly facilitated, and practicability is high.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology and relates to a non-occupying, replacement-free, sealed suction catheter. Background Technology

[0002] Suction catheters primarily utilize negative pressure to remove sputum from the patient's respiratory tract, preventing large accumulations that could lead to respiratory distress and infections. Some existing suction catheters include a flushing tube, allowing for some flushing and patency maintenance, preventing blockage by thick sputum and ensuring smooth suctioning. However, for patients under intensive care who are connected to a ventilator, the general clinical practice is to use a non-occupying, non-replaceable, sealed suction catheter. However, each time a fiberoptic endoscopy is performed, the patient needs to be weaned off the ventilator, the suction catheter removed, and the endoscope reinserted. Once the suction catheter is disconnected from the ventilator connection, it cannot be reused, requiring a completely new catheter for each subsequent suction. This high frequency of catheter replacement increases costs, and the switching between the two is cumbersome for both the patient and the ventilator, posing a space-consuming problem for medical personnel. It also makes it difficult to perform fiberoptic endoscopy without disconnecting the suction catheter from the ventilator connection, limiting its practicality. Therefore, there is an urgent need to design a non-occupying, non-replaceable, sealed suction catheter that overcomes these shortcomings.

[0003] In order to overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, Chinese patent discloses a suction tube [application number: 202110135139.7], which includes a rigid suction tube body and a soft contact at the head end of the rigid suction tube body. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a non-occupying, replacement-free, sealed suction catheter.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A non-susceptibility, replacement-free, sealed suction catheter includes a suction catheter body. Negative pressure connection portions and ventilator connection tubes are respectively located on both sides of the suction catheter body. An inner lumen is located within the suction catheter body. A fixed slide is located at the bottom of the suction catheter body. A valve-shaped cannula sealing assembly is located within the fixed slide. The valve-shaped cannula sealing assembly is rotatable along the side closest to the inner lumen of the suction catheter. A fiberscope is located on the side of the suction catheter body away from the opening of the inner lumen of the suction catheter. The fiberscope is connected to the fixed slide via a fiberscope connecting slide, which slides in cooperation with the fixed slide.

[0007] In the aforementioned anti-occupancy, replacement-free, sealed suction catheter, the valve-shaped cannula sealing assembly includes an inner plate disposed within a fixed slide. The inner plate contains four valve-shaped sealing blocks, with adjacent valve-shaped sealing blocks abutting against each other. The valve-shaped sealing blocks are positioned directly opposite the inner lumen of the suction catheter.

[0008] In the aforementioned anti-occupancy, replacement-free, sealed suction tube, the back of the flap-shaped sealing block extends into the inner lumen of the suction tube, and a sealing connector is provided on the back of the flap-shaped sealing block.

[0009] In the aforementioned anti-occupancy, replacement-free, sealed suction catheter, the sealing connector includes a sealing gasket disposed on the back of the flap-shaped sealing block, and the sealing gasket has a cross-shaped opening that passes through the sealing gasket.

[0010] In the aforementioned anti-occupancy, replacement-free, sealed suction catheter, the sealing gasket is located inside the suction catheter lumen, and the flap-shaped sealing block is made of elastic plastic.

[0011] In the aforementioned anti-occupancy, non-replaceable, sealed suction catheter, the fiberscope connecting slide includes a fiberscope connecting sleeve disposed between the fiberscope and the fixed slide. One end of the fiberscope connecting sleeve is engaged with the fiberscope, and the other end is slidably engaged with the fixed slide.

[0012] In the aforementioned anti-occupancy, replacement-free, sealed suction catheter, the fixed slide is provided with an embedded sliding groove, the fiber endoscope connecting slide sleeve slides in conjunction with the embedded sliding groove, and the fiber endoscope connecting slide sleeve and the flap-shaped sealing block are alternately arranged.

[0013] In the aforementioned anti-occupancy, replacement-free, sealed suction catheter, the negative pressure connection includes a suction catheter negative pressure connection tube disposed on the side of the suction catheter body.

[0014] In the aforementioned anti-occupancy, replacement-free sealed suction tube, the angle between the centerline of the ventilator connecting tube and the centerline of the suction tube body is an obtuse angle.

[0015] In the aforementioned anti-occupancy, non-replaceable sealed suction catheter, the end of the fiberscope away from the main body of the suction catheter is provided with a cap.

[0016] Compared with existing technologies, the advantages of this invention are:

[0017] 1. In the use of this invention, when suctioning is required, the fiberoptic endoscope connecting slide is moved away from the valve-shaped cannula sealing assembly, causing the fiberoptic endoscope to move synchronously, thus misaligning the fiberoptic endoscope with the valve-shaped cannula sealing assembly. At this time, the suction tube is inserted into the valve-shaped cannula sealing assembly and extends through the inner lumen of the suction tube. The negative pressure connection part is then connected to a negative pressure drainage device, creating a negative pressure state in the inner lumen of the suction tube. The valve-shaped cannula sealing assembly abuts against the suction tube, achieving a seal and preventing leakage. The ventilator connection tube facilitates subsequent adjustments to the tube body. After cleaning, when fiberoptic endoscopy is needed, the suction tube is removed. At this time, the valve-shaped cannula sealing assembly automatically closes. The fiberoptic endoscope connecting slide is moved closer to the valve-shaped cannula sealing assembly, causing the fiberoptic endoscope to move synchronously, so that the fiberoptic endoscope is aligned with the valve-shaped cannula sealing assembly. The fiberoptic endoscope is then inserted into the valve-shaped cannula sealing assembly and extends through the lumen of the suction tube for endoscopic examination. The switchable structure solves the problem of space occupation by the suction tube and fiberoptic endoscope. Switching between the two does not require disconnection from the machine, greatly facilitating the operation of medical personnel and making it highly practical.

[0018] 2. The sealing gasket in this invention can thicken the back of the petal-shaped sealing block to achieve a better sealing effect and avoid leakage. The cross-shaped opening facilitates pipe insertion.

[0019] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a partial structural schematic diagram of the present invention.

[0022] Figure 3 This is a partial structural schematic diagram of another aspect of the present invention.

[0023] Figure 4 This is a partial structural schematic diagram of another aspect of the present invention.

[0024] In the diagram: 1. Suction catheter body; 2. Negative pressure connection; 3. Ventilator connection tube; 4. Suction catheter lumen; 5. Fixing slide; 6. Valve-shaped cannula sealing assembly; 7. Fiberoptic endoscope; 8. Fiberoptic endoscope connecting slide; 9. Inset plate; 10. Valve-shaped sealing block; 11. Sealing connector; 12. Sealing gasket; 13. Cross-shaped opening; 14. Fiberoptic endoscope connecting slide; 15. Inset groove; 16. Suction catheter negative pressure connection tube; 17. Cover. Detailed Implementation

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, a non-susceptibility, replacement-free, sealed suction catheter includes a suction catheter body 1. Negative pressure connection parts 2 and ventilator connection tubes 3 are respectively provided on both sides of the suction catheter body 1. A suction catheter lumen 4 is provided inside the suction catheter body 1. A fixed slide 5 is provided at the bottom of the suction catheter body 1. A valve-shaped cannula sealing assembly 6 is provided inside the fixed slide 5. The valve-shaped cannula sealing assembly 6 can rotate along the side closest to the suction catheter lumen 4. A fiberscope 7 is provided on the side of the suction catheter body 1 away from the opening of the suction catheter lumen 4. The fiberscope 7 is connected to the fixed slide 5 via a fiberscope connecting slide 8, and the fiberscope connecting slide 8 slides in cooperation with the fixed slide 5.

[0027] In this embodiment, the ventilator connecting tube 3 is connected to the ventilator for oxygen supply. During use, when suctioning is required, the fiberoptic endoscope connecting slide 8 is moved away from the valve-shaped cannula sealing assembly 6, causing the fiberoptic endoscope 7 to move synchronously, thus misaligning the fiberoptic endoscope 7 with the valve-shaped cannula sealing assembly 6. At this time, the suction tube is inserted into the valve-shaped cannula sealing assembly 6 and extends through the suction tube lumen 4. The negative pressure connection part 2 is connected to the negative pressure drainage device, so that the suction tube lumen 4 is in a negative pressure state. At this time, the valve-shaped cannula sealing assembly 6 will abut against the suction tube, achieving a seal. To prevent leakage, when fiberoptic endoscopy is needed, the suction catheter is withdrawn, at which point the valve-shaped cannula sealing assembly 6 automatically closes. The fiberoptic endoscope connecting slide 8 is moved closer to the valve-shaped cannula sealing assembly 6, causing the fiberoptic endoscope 7 to move synchronously, so that the fiberoptic endoscope 7 is directly opposite the valve-shaped cannula sealing assembly 6. At this time, the fiberoptic endoscope is inserted into the valve-shaped cannula sealing assembly 6 and extends through the lumen 4 of the suction catheter for endoscopic examination. The switchable structure solves the problem of space occupation by the suction catheter and fiberoptic endoscope. There is no need to disconnect the machine when switching between the two, which greatly facilitates the operation of medical personnel and has strong practicality.

[0028] Combination Figure 1-4 As shown, the valve-shaped cannula sealing assembly 6 includes an inner plate 9 disposed in the fixed slide 5. The inner plate 9 is provided with four valve-shaped sealing blocks 10. Adjacent valve-shaped sealing blocks 10 abut against each other. The valve-shaped sealing blocks 10 are positioned directly opposite the inner lumen 4 of the suction tube.

[0029] Specifically, the inner plate 9 is used to install and fix the petal-shaped sealing blocks 10. During sputum suction or endoscopic examination, the sputum suction tube or fiber endoscope is inserted into the gap between the four petal-shaped sealing blocks 10 and extends through the inner lumen 4 of the sputum suction tube. At this time, the negative pressure connection part 2 is connected to the negative pressure drainage device, so that the inner lumen 4 of the sputum suction tube is in a negative pressure state. At this time, the four petal-shaped sealing blocks 10 will abut against the sputum suction tube to achieve a seal and prevent leakage.

[0030] Combination Figure 2-3As shown, the back of the flap-shaped sealing block 10 extends into the inner lumen 4 of the suction tube, and a sealing connector 11 is provided on the back of the flap-shaped sealing block 10.

[0031] In this embodiment, the sealing connector 11 can thicken the back of the petal-shaped sealing block 10 to achieve a better sealing effect and avoid leakage.

[0032] The sealing connector 11 includes a sealing gasket 12 disposed on the back of the petal-shaped sealing block 10. A cross opening 13 is provided in the sealing gasket 12, and the cross opening 13 passes through the sealing gasket 12.

[0033] In this embodiment, the sealing gasket 12 can thicken the back of the petal-shaped sealing block 10 to achieve a better sealing effect and avoid leakage. The cross-shaped opening 13 facilitates pipe insertion.

[0034] Combination Figure 2-4 As shown, the sealing gasket 12 is located inside the lumen 4 of the suction tube, and the flap-shaped sealing block 10 is made of elastic plastic.

[0035] In this embodiment, the flap-shaped sealing block 10 is made of elastic plastic and has a good deformation structure. Those skilled in the art should understand that the elastic plastic of the flap-shaped sealing block 10 is commercially available medical plastic.

[0036] The fiber mirror connecting slide 8 includes a fiber mirror connecting slide sleeve 14 disposed between the fiber mirror 7 and the fixed slide table 5. One end of the fiber mirror connecting slide sleeve 14 is engaged with the fiber mirror 7, and the other end is slidably engaged with the fixed slide table 5.

[0037] In this embodiment, the fiberscope connecting slide 14 is used to connect and fix the fiberscope 7. When suctioning is required, the fiberscope connecting slide 14 and the flap-shaped sealing block 10 are misaligned. When an endoscopy is required, the fiberscope connecting slide 14 and the flap-shaped sealing block 10 are aligned. The switchable structure solves the problem of space occupation by the suction tube and the fiberscope. There is no need to disconnect the machine when switching between the two, which greatly facilitates the operation of medical personnel and has strong practicality.

[0038] The fixed slide table 5 is provided with an embedded slide groove 15. The fiber mirror connecting slide sleeve 14 is slidably engaged with the embedded slide groove 15. The fiber mirror connecting slide sleeve 14 and the petal-shaped sealing block 10 are alternately arranged.

[0039] In this embodiment, the embedded groove 15 facilitates the sliding of the fiber mirror connecting sleeve 14 and limits its movement.

[0040] Combination Figure 1 As shown, the negative pressure connection part 2 includes a suction tube negative pressure connection tube 16 disposed on the side of the suction tube body 1.

[0041] In this embodiment, the suction catheter negative pressure connecting tube 16 is connected to a negative pressure drainage device, so that the inner cavity 4 of the suction catheter is in a negative pressure state.

[0042] Combination Figure 1 , Figure 2 As shown, the angle between the centerline of the ventilator connecting tube 3 and the centerline of the suction tube body 1 is an obtuse angle.

[0043] In this embodiment, the angle between the centerline of the ventilator connecting tube 3 and the centerline of the suction tube body 1 is an obtuse angle, which facilitates the connection to the ventilator.

[0044] Combination Figure 1 As shown, the fiberscope 7 has a cap 17 at the end away from the suction tube body 1.

[0045] In this embodiment, when the fiberscope 7 is not needed, the cover 17 can be used to cover the fiberscope 7 to prevent bacteria from entering.

[0046] The working principle of this invention is:

[0047] During use, when suctioning is required, the fiberoptic endoscope connecting sleeve 14 is moved away from the four-lobed sealing block 10, causing the fiberoptic endoscope 7 to move synchronously, thus misaligning the fiberoptic endoscope 7 with the four-lobed sealing block 10. The suction tube or fiberoptic endoscope is then inserted into the gap between the four-lobed sealing blocks 10 and extends through the inner lumen 4 of the suction tube. At this time, the negative pressure connection part 2 connects to the negative pressure drainage device, putting the inner lumen 4 of the suction tube under negative pressure. The four-lobed sealing block 10 then abuts against the suction tube, achieving a seal and preventing leakage. The negative pressure connection part 2 connects to the negative pressure drainage device, putting the inner lumen 4 of the suction tube under negative pressure. The four-lobed sealing block 10 then... The suction tube 7 connects to the ventilator to ensure a tight seal and prevent leakage. The ventilator connection tube 3 is used for oxygen supply. When a fiberoptic endoscopy is needed, the suction tube is removed, and the four-lobed sealing block 10 automatically closes. The fiberoptic endoscope connecting sleeve 14 moves closer to the four-lobed sealing block 10, causing the fiberoptic endoscope 7 to move synchronously, aligning it with the four-lobed sealing block 10. The fiberoptic endoscope is then inserted into the four-lobed sealing block 10 and extends through the lumen 4 of the suction tube for endoscopic examination. This switchable structure solves the problem of space occupation by the suction tube and fiberoptic endoscope, allowing switching without disconnecting the ventilator, greatly facilitating medical personnel's operation and demonstrating strong practicality.

[0048] The sealing gasket 12 can thicken the back of the petal-shaped sealing block 10 to achieve a better sealing effect and prevent leakage. The cross-shaped opening 13 facilitates pipe insertion. The petal-shaped sealing block 10 is made of elastic plastic and has a good deformation structure.

[0049] The embedded groove 15 facilitates the sliding of the fiber endoscope to the sliding sleeve 14 and limits its movement. When the fiber endoscope 7 is not in use, the cover sleeve 17 can cover the fiber endoscope 7 to prevent bacteria from entering.

[0050] The specific embodiments described herein are merely illustrative examples of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention.

[0051] Although this document frequently uses terms such as suction catheter body 1, negative pressure connection 2, ventilator connection tube 3, suction catheter lumen 4, fixing slide 5, valve-shaped cannula sealing assembly 6, fiberscope 7, fiberscope connection slide 8, inset plate 9, valve-shaped sealing block 10, sealing connection 11, sealing gasket 12, cross joint 13, fiberscope connection slide sleeve 14, inset groove 15, suction catheter negative pressure connection tube 16, and cover 17, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A non-susceptibility, replacement-free, sealed suction catheter, comprising a suction catheter body (1), characterized in that, The suction tube body (1) is provided with a negative pressure connection part (2) and a ventilator connection tube (3) on both sides respectively. The suction tube body (1) is provided with a suction tube lumen (4). The suction tube body (1) is provided with a fixed slide (5) at the bottom. The fixed slide (5) is provided with a valve-shaped cannula sealing assembly (6). The valve-shaped cannula sealing assembly (6) can rotate along the side close to the suction tube lumen (4). The suction tube body (1) is provided with a fiberscope (7) on the side away from the opening of the suction tube lumen (4). The fiberscope (7) and the fixed slide (5) are connected by a fiberscope connecting slide (8). The fiberscope connecting slide (8) slides and engages with the fixed slide (5).

2. The anti-occupancy, replacement-free, sealed suction catheter according to claim 1, characterized in that, The valve-shaped cannula sealing assembly (6) includes an inner plate (9) disposed in a fixed slide (5). The inner plate (9) is provided with four valve-shaped sealing blocks (10). Adjacent valve-shaped sealing blocks (10) abut against each other. The valve-shaped sealing blocks (10) are positioned opposite to the inner cavity (4) of the suction catheter.

3. The anti-occupancy, replacement-free, sealed suction catheter according to claim 2, characterized in that, The back of the flap-shaped sealing block (10) extends into the lumen (4) of the suction tube, and a sealing connector (11) is provided on the back of the flap-shaped sealing block (10).

4. The anti-occupancy, replacement-free, sealed suction catheter according to claim 3, characterized in that, The sealing connector (11) includes a sealing gasket (12) disposed on the back of the petal-shaped sealing block (10), and a cross opening (13) is provided in the sealing gasket (12), the cross opening (13) passing through the sealing gasket (12).

5. The anti-occupancy, replacement-free, sealed suction catheter according to claim 4, characterized in that, The sealing gasket (12) is located inside the lumen (4) of the suction tube, and the flap-shaped sealing block (10) is made of elastic rubber.

6. The anti-occupancy, replacement-free, sealed suction catheter according to claim 5, characterized in that, The fiber mirror connecting slide (8) includes a fiber mirror connecting sleeve (14) disposed between the fiber mirror (7) and the fixed slide (5). One end of the fiber mirror connecting sleeve (14) is engaged with the fiber mirror (7), and the other end is slidably engaged with the fixed slide (5).

7. The anti-occupancy, replacement-free, sealed suction catheter according to claim 6, characterized in that, The fixed slide (5) is provided with an embedded slide groove (15), the fiber mirror connecting slide sleeve (14) is slidably engaged with the embedded slide groove (15), and the fiber mirror connecting slide sleeve (14) and the petal-shaped sealing block (10) are alternately arranged.

8. The anti-occupancy, replacement-free, sealed suction catheter according to claim 7, characterized in that, The negative pressure connection part (2) includes a suction tube negative pressure connection tube (16) disposed on the side of the suction tube body (1).

9. The anti-occupancy, replacement-free, sealed suction catheter according to claim 8, characterized in that, The angle between the centerline of the ventilator connecting tube (3) and the centerline of the suction tube body (1) is an obtuse angle.

10. The anti-occupancy, replacement-free, sealed suction catheter according to claim 9, characterized in that, The fiber endoscope (7) is provided with a cap (17) at the end away from the main body of the suction catheter (1).

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