Closed sputum suction tube with adjustable head end

By designing a plastic suction head and steering mechanism made of plastic materials, combined with independent flushing pipelines and cameras, the problem of the closed suction tube not being rotated and adjusted and direct flushing is solved, achieving efficient and safe sputum adsorption and dilution Effect.

CN119139598AInactive Publication Date: 2024-12-17BEIJING CANCER HOSPITAL PEKING UNIV CANCER HOSPITAL

Patent Information

Application Number
CN202411501319.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2024-12-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing closed suction tube cannot rotate and adjust the direction of suction during operation, resulting in a decrease in suction efficiency, increasing the operating time, and being unable to directly look and directionally rinse, which can easily cause damage to the airway mucosa and not completely aspirate the sputum.

Method used

A closed suction tube with adjustable head end is designed, a plastic suction head made of plastic material, with a steering mechanism and a camera, can rotate at any angle, and is equipped with an independent flushing pipeline and multiple flushing openings. Precise adjustment and flushing is achieved by driving hydraulic components to ensure adequate pressure when normal saline is injected.

Benefits of technology

It realizes efficient sputum suction under single operation, avoids airway damage caused by repeated thrust, ensures accurate dilution and adsorption of sputum, and improves the efficiency and safety of sputum suction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of sputum suction tubes, in particular to a closed sputum suction tube with an adjustable head end. According to the technical scheme, the sputum suction device comprises a three-way connector and a sputum suction pipe connector, a suction catheter and a protective sleeve are fixedly installed between the three-way connector and the sputum suction pipe connector, the sputum suction device further comprises a steering mechanism which is fixedly installed at one end of the suction catheter and located in the three-way connector, and a plastic suction head is fixedly installed on the steering mechanism. The camera is fixedly installed on the plastic suction head, a plurality of flushing openings are formed in the plastic suction head and located on one side of the camera, an independent flushing pipeline is installed in the plastic suction head, and the flushing pipeline is communicated with the flushing openings. The sputum suction tube is easy to manufacture, single-person operation can be achieved, the sputum suction direction can be adjusted by rotating the plastic suction head, it is avoided that the sputum suction position is adjusted by repeatedly drawing and inserting the sputum suction tube, and airway mucosa damage is easily caused by repeated invalid sputum suction.
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Description

Technical Field

[0001] The invention relates to the technical field of sputum suction tubes, and in particular to a closed sputum suction tube with an adjustable head end. Background Art

[0002] A closed suction tube is a medical device used in a medical setting to help clear a patient's airway. It is primarily used for patients who are unable to cough effectively or who require continuous respiratory support.

[0003] The existing technology is an ordinary closed suction tube, which cannot be rotated during operation. The suction tube can only be continuously inserted and pulled to adjust the suction position during suction, resulting in a decrease in suction efficiency and an increase in additional operation time. In case of emergency, multiple operations cannot be taken into account. In addition, the sputum in the respiratory tract cannot be viewed directly, and repeated ineffective suction can easily cause damage to the airway mucosa. When some patients have sputum in the bronchial tract, the ordinary suction tube cannot adjust the angle, resulting in the inability to suck out the sputum in the bronchial tract, which increases the patient's ventilation difficulties. When the sputum in the airway is thick and difficult to suck out, the operator cannot achieve the desired effect when flushing the airway to dilute the sputum because the site where the sterile saline is injected is far away from the tracheal end of the suction tube, there is no certain pressure, and the directional operation cannot be viewed directly. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to provide a closed sputum suction tube with an adjustable head end.

[0005] The technical solution of the present invention is: a closed sputum suction tube with adjustable head end, comprising a three-way joint and a sputum suction tube connector, wherein a suction catheter and a protective sleeve are fixedly installed between the three-way joint and the sputum suction tube connector, and the suction catheter is located inside the protective sleeve, and further comprising:

[0006] A steering mechanism is fixedly mounted on one end of the suction catheter and is located inside the three-way joint. A plastic suction head is fixedly mounted on the steering mechanism. The plastic suction head is made of a plastic material. The steering mechanism drives the plastic suction head to rotate at any angle.

[0007] A camera is fixedly mounted on the plastic suction head, a plurality of flushing openings are arranged on the plastic suction head and located on one side of the camera, an independent flushing pipeline is installed in the plastic suction head, and the flushing pipeline is communicated with the flushing openings.

[0008] Optionally, the steering mechanism includes a first turntable fixedly mounted on the suction catheter, a second turntable rotatably mounted on the first turntable, and a third turntable rotatably mounted on the second turntable, and the plastic suction head is fixedly mounted on the third turntable;

[0009] The first rotating disk is provided with a first slide groove, a first partition block is fixedly installed in the first slide groove, two first connecting pipes are fixedly installed on the first rotating disk, the two first connecting pipes are located on both sides of the first partition block and are connected to the first slide groove, and a first slider is fixedly installed on the second rotating disk, and the first slider is slidably connected to the first slide groove;

[0010] The second rotating disk is provided with a second slide groove, a second partition block is fixedly installed in the second slide groove, a second slider is fixedly installed on the third rotating disk, the second slider is slidably connected to the second slide groove, and two second connecting pipes are fixedly installed on the second rotating disk, the two second connecting pipes are located on both sides of the second partition block and are connected to the second slide groove;

[0011] The first rotating disk, the second rotating disk and the third rotating disk are all provided with connecting holes.

[0012] Optionally, the first sliding block is sealed to the first sliding groove via a sealing member, and the second sliding block is sealed to the second sliding groove via a sealing member.

[0013] Optionally, the steering mechanism further includes a pressure component that drives the second turntable to rotate on the first turntable, and drives the third turntable to rotate on the second turntable.

[0014] Optionally, the pressure-applying assembly includes a support seat fixedly mounted on the suction tube connector, two adjustment boxes are fixedly mounted on the support seat, delivery pipes are fixedly mounted at both ends of the adjustment box, the delivery pipes are communicated with the interior of the adjustment box, a pressure plate is slidably mounted in the adjustment box, a screw rod is fixedly mounted on the pressure plate, an internal threaded rod is rotatably mounted on one end of the adjustment box, the internal threaded rod is threadedly connected to the screw rod, the internal threaded rod passes through one side of the adjustment box and extends to the outside of the adjustment box, and a hand is fixedly mounted on one end of the internal threaded rod located on the outside of the adjustment box;

[0015] The two delivery pipes on one of the regulating boxes correspond to the two first connecting pipes one by one and are fixedly connected, and the two delivery pipes on the other regulating box correspond to the two second connecting pipes one by one and are fixedly connected;

[0016] The regulating box, the delivery pipe, the first connecting pipe, the second connecting pipe, the first chute and the second chute are filled with driving fluid.

[0017] Optionally, the pressing plate is provided with a groove, and a sealing ring is fixedly installed in the groove.

[0018] Optionally, the flushing pipeline includes a connecting box fixedly installed in the plastic suction head, the connecting box is provided with a plurality of connecting ports corresponding to the flushing openings, a flushing tube is fixedly installed on the connecting box, a flushing connector is fixedly installed on the suction tube connector, the flushing connector is fixedly connected to the flushing tube, and an elbow is fixedly installed on one of the flushing openings close to the camera, and the other end of the elbow faces the camera.

[0019] Optionally, the plastic suction head is provided with a plurality of adsorption holes.

[0020] Optionally, the three-way connector includes a trachea plug end and a ventilator interface end.

[0021] Optionally, the suction tube connector includes a press valve and a connector fixedly mounted on the press valve.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] The suction tube is easy to manufacture and can be operated by one person. The suction direction can be adjusted by rotating the plastic suction head, avoiding repeated insertion and withdrawal of the suction tube to adjust the suction position, and preventing repeated ineffective suction from easily causing damage to the airway mucosa.

[0024] Furthermore, sputum can be accurately diluted under visual conditions, ensuring that when sterile saline is injected at a distant location, the saline still has a certain pressure and can directionally flush and adsorb sputum. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of the closed sputum suction tube of the present invention is provided;

[0026] Figure 2 The structure diagram of the steering mechanism of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 3 It is a structural schematic diagram of the flushing pipeline of the present invention;

[0028] Figure 4 The structure diagram of the steering mechanism of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 5 The structure diagram of the steering mechanism of the present invention is shown in FIG. Figure 3 ;

[0030] Figure 6 For the present invention Figure 5 A partial enlarged view of the middle A;

[0031] Figure 7 It is a structural schematic diagram of the sputum suction tube connector of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the regulating box and the conveying pipe of the present invention;

[0033] Fig. 9 This is a schematic diagram of the structure inside the regulating box of the present invention;

[0034] Fig.10 For the present invention Fig. 9 A partial enlarged view of point B in the middle.

[0035] Figure numerals: 1, three-way connector; 101, tracheal plug end; 102, ventilator interface end; 2, suction tube connector; 201, press valve; 202, connector; 3, suction catheter; 301, protective cover; 4, steering mechanism; 401, first turntable; 402, second turntable; 403, third turntable; 404, first slide; 405, first partition block; 406, first slider; 407, first connecting pipe; 408, second slide; 409, first Two partition blocks; 410, second slider; 411, second connecting pipe; 412, connecting hole; 413, support seat; 414, adjustment box; 415, delivery pipe; 416, pressure plate; 417, screw rod; 418, internal threaded rod; 419, handle; 420, sealing ring; 5, plastic suction head; 6, camera; 7, flushing opening; 701, connection box; 702, connection port; 703, flushing pipe; 704, flushing joint; 705, elbow; 8, adsorption hole. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] Example

[0038] like Figure 1 and Figure 7 As shown, a closed suction tube with an adjustable head end proposed by the present invention includes a three-way joint 1 and a suction tube connector 2, and the three-way joint 1 includes a tracheal plug end 101 and a ventilator interface end 102. The suction tube can be connected to the trachea through the tracheal plug end 101, and the suction tube can be connected to the ventilator at the same time through the ventilator interface end 102. The suction tube connector 2 includes a press valve 201 and a joint 202 fixedly mounted on the press valve 201. The sputum suction tube is connected to the sputum suction device through the joint 202, and the suction force of the suction tube can be controlled by the press valve 201. A suction catheter 3 and a protective cover 301 are fixedly installed between the three-way joint 1 and the suction tube connector 2, and the suction catheter 3 is located inside the protective cover 301. The suction force is transmitted through the suction catheter 3, and the suction catheter 3 is protected by the protective cover 301.

[0039] like Figure 2-10As shown, in this embodiment, the closed sputum suction tube also includes a steering mechanism 4 fixedly mounted on one end of the suction catheter 3 and located inside the three-way connector 1. A plastic suction head 5 is fixedly mounted on the steering mechanism 4. The plastic suction head 5 is made of plastic material, which can solve the problem that ordinary sputum suction tubes cannot reach the branch airway during surgery. The steering mechanism drives the plastic suction head 5 to rotate at any angle. The sputum suction tube can be directional adsorbed and flushed. The plastic suction head 5 is provided with a plurality of adsorption holes 8. The sputum is adsorbed through the adsorption holes.

[0040] Furthermore, the steering mechanism includes a first rotating disk 401 fixedly mounted on the suction catheter 3, a second rotating disk 402 rotatably mounted on the first rotating disk 401, and a third rotating disk 403 rotatably mounted on the second rotating disk 402, and the plastic suction head 5 is fixedly mounted on the third rotating disk 403. The second rotating disk 402 rotates on the first rotating disk 401, and the third rotating disk 403 rotates on the second rotating disk 402, so that the plastic suction head 5 can be driven to rotate 360 ​​degrees.

[0041] Furthermore, a first slide groove 404 is provided on the first rotating disk 401, a first partition block 405 is fixedly installed in the first slide groove 404, two first connecting pipes 407 are fixedly installed on the first rotating disk 401, the two first connecting pipes 407 are located on both sides of the first partition block 405 and are connected to the first slide groove 404, and a first slider 406 is fixedly installed on the second rotating disk 402, and the first slider 406 is slidably connected to the first slide groove 404. The first slider 406 is sealed and connected to the first slide groove 404 through a sealing member. When hydraulic pressure or air pressure is applied to one side of the first slide groove 404 through the first connecting pipe 407, the first slider 406 can be pushed to slide to the other side of the first slide groove 404, thereby driving the second rotating disk 402 to rotate.

[0042] Furthermore, a second slide groove 408 is provided on the second rotating disk 402, a second partition block 409 is fixedly installed in the second slide groove 408, a second slider 410 is fixedly installed on the third rotating disk 403, the second slider 410 is slidably connected with the second slide groove 408, and two second connecting pipes 411 are fixedly installed on the second rotating disk 402, the two second connecting pipes 411 are located on both sides of the second partition block 409 and are connected with the second slide groove 408. The second slider 410 is sealed and connected with the second slide groove 408 through a sealing member. When air pressure or hydraulic pressure is applied to one side of the second slide groove 408 through the second connecting pipe 411, the second slider 410 will be driven to slide to the other side of the second slide groove 408, thereby driving the third rotating disk 403 to rotate.

[0043] The first rotating disk 401, the second rotating disk 402 and the third rotating disk 403 are all provided with a connecting hole 412. The plastic suction head 5 can be connected with the suction conduit 3 through the connecting hole 412, so that the plastic suction head 5 generates suction force to the outside.

[0044] In this embodiment, the steering mechanism also includes a pressure component that drives the second turntable 402 to rotate on the first turntable 401 and drives the third turntable 403 to rotate on the second turntable 402. The pressure component includes a support seat 413 fixedly mounted on the suction tube connector 2, and two adjustment boxes 414 are fixedly mounted on the support seat 413. The two ends of the adjustment box 414 are fixedly mounted with a delivery pipe 415, and the delivery pipe 415 is connected to the inside of the adjustment box 414. The adjustment box 414, the delivery pipe 415, the first connecting pipe 407, the second connecting pipe 411, the first chute 404 and the second chute 408 are filled with a driving liquid. The driving liquid can be hydraulic oil or pure water, wherein pure water can prevent endangering patient safety when leaking, but hydraulic oil has a better transmission effect. The two delivery pipes 415 on one of the adjustment boxes 414 correspond to the two first connecting pipes 407 one by one and are fixedly connected, and the two delivery pipes 415 on the other adjustment box 414 correspond to the two second connecting pipes 411 one by one and are fixedly connected. When the pressure plate 416 moves inside the regulating box 414, the pressure plate 416 will push the driving fluid inside the regulating box 414 to move. When the pressure plate 416 moves to the left, the driving fluid on the left side of the pressure plate 416 will be fluidized into the left delivery pipe 415, and finally enter the first connecting pipe 407 or the second connecting pipe 411 connected thereto. Finally, the driving fluid will enter the first chute 404 or the second chute 408. The second turntable 402 and the third turntable 403 can be driven to rotate by the pressure of the driving fluid, and the driving fluid on the other side of the first chute 404 and the second chute 408 will enter the regulating box 414 through the first connecting pipe 407 and the second connecting pipe 411.

[0045] Furthermore, a pressing plate 416 is slidably installed in the adjusting box 414, a screw rod 417 is fixedly installed on the pressing plate 416, an internal threaded rod 418 is rotatably installed at one end of the adjusting box 414, the internal threaded rod 418 is threadedly connected to the screw rod 417, the internal threaded rod 418 passes through one side of the adjusting box 414 and extends to the outside of the adjusting box 414, and a hand 419 is fixedly installed at one end of the internal threaded rod 418 located outside the adjusting box 414. When the hand 419 is rotated, the internal threaded rod 418 will be driven to rotate, and the rotating internal threaded rod 418 will push the pressing plate 416 to the left or right side and move, so that the pressing plate 416 will drive the driving hydraulic pressure into the delivery pipe 415 in different directions, and the rotation direction of the second rotating disk 402 and the third rotating disk 403 can be controlled.

[0046] The pressing plate 416 is provided with a groove, in which a sealing ring 420 is fixedly installed. The sealing performance between the pressing plate 416 and the regulating box 414 can be improved by the provision of the sealing ring 420.

[0047] like Figure 3 and Figure 7 As shown, this embodiment also includes a camera 6 fixedly mounted on the plastic suction head 5, a plurality of flushing openings 7 are provided on the plastic suction head 5 and located on one side of the camera 6, an independent flushing pipeline is installed in the plastic suction head 5, and the flushing pipeline is connected to the flushing opening 7. The flushing pipeline includes a connection box 701 fixedly mounted in the plastic suction head 5, a plurality of connection ports 702 corresponding to the flushing openings 7 are provided on the connection box 701, a flushing tube 703 is fixedly mounted on the connection box 701, and a flushing joint 704 is fixedly mounted on the sputum suction tube connector 2, and the flushing joint 704 is fixedly connected to the flushing tube 703. The flushing liquid is transported to the inside of the thinner flushing tube 703 through the flushing joint 704, and the flushing liquid in the flushing tube 703 will enter the connection box 701 and be sprayed out through the connection port 702 and the flushing opening 7, which can ensure that the flushing liquid has a certain pressure when spraying, and ensure that the flushing liquid can contact the sputum farther away.

[0048] Furthermore, an elbow 705 is fixedly mounted on a flushing opening 7 close to the camera 6, and the other end of the elbow 705 faces the camera 6. The flushing liquid is guided by the elbow 705, so that a part of the flushing liquid can flush the camera 6, thereby preventing sputum from adhering to the camera 6 and ensuring that the camera 6 can form a clear image. In addition, the image data collected by the camera 6 can be connected to an external display screen through a line, which is convenient for the operator to observe in real time.

[0049] The working principle of this embodiment is as follows: when the handle 419 is rotated, the internal threaded rod 418 will be driven to rotate, and the rotating internal threaded rod 418 will push the pressing plate 416 to the left or right and move, so that the pressing plate 416 will inject the driving fluid into the delivery pipe 415 in different directions. When the pressing plate 416 moves to the left, the driving fluid on the left side of the pressing plate 416 will be injected into the inside of the delivery pipe 415 on the left side, and finally enter the first connecting pipe 407 or the second connecting pipe 411 connected thereto, and finally the driving fluid will enter the first chute 404 or the second chute 408. The second rotating disk 402 and the third rotating disk 403 can be driven to rotate by the pressure of the driving fluid, and the driving fluid on the other side of the first chute 404 and the second chute 408 will enter the inside of the regulating box 414 through the first connecting pipe 407 and the second connecting pipe 411. The rotation direction of the second rotating disk 402 and the third rotating disk 403 can be controlled by changing the rotation direction of the handle 419. Thus, the position of sputum suction can be adjusted to improve the sputum suction efficiency.

[0050] The flushing liquid is transported to the inside of the thinner flushing tube 703 through the flushing connector 704. The flushing liquid in the flushing tube 703 enters the connection box 701 and is sprayed out through the connection port 702 and the flushing opening 7, which can ensure that the flushing liquid has a certain pressure when spraying out, ensuring that the flushing liquid can come into contact with sputum farther away.

[0051] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A closed sputum suction tube with an adjustable head end, comprising a three-way joint (1) and a sputum suction tube connector (2), wherein a suction catheter (3) and a protective cover (301) are fixedly installed between the three-way joint (1) and the sputum suction tube connector (2), and the suction catheter (3) is located inside the protective cover (301), characterized in that: Also includes: A steering mechanism (4) is fixedly mounted on one end of the suction catheter (3) and is located inside the three-way connector (1); a plastic suction head (5) is fixedly mounted on the steering mechanism (4); the plastic suction head (5) is made of a plastic material, and the steering mechanism drives the plastic suction head (5) to rotate at any angle; A camera (6) is mounted on a plastic suction head (5), a plurality of flushing openings (7) are provided on the plastic suction head (5) and located on one side of the camera (6), an independent flushing pipeline is installed in the plastic suction head (5), and the flushing pipeline is connected to the flushing openings (7).

2. A closed sputum suction tube with adjustable head end according to claim 1, characterized in that: The steering mechanism comprises a first rotating disk (401) fixedly mounted on the suction catheter (3), a second rotating disk (402) rotatably mounted on the first rotating disk (401), and a third rotating disk (403) rotatably mounted on the second rotating disk (402), and the plastic suction head (5) is fixedly mounted on the third rotating disk (403); The first rotating disk (401) is provided with a first sliding groove (404), a first partition block (405) is fixedly installed in the first sliding groove (404), two first connecting pipes (407) are fixedly installed on the first rotating disk (401), the two first connecting pipes (407) are located on both sides of the first partition block (405) and are connected to the first sliding groove (404), and a first sliding block (406) is fixedly installed on the second rotating disk (402), and the first sliding block (406) is slidably connected to the first sliding groove (404); The second rotating disk (402) is provided with a second slide groove (408), a second partition block (409) is fixedly installed in the second slide groove (408), a second slider (410) is fixedly installed on the third rotating disk (403), the second slider (410) is slidably connected to the second slide groove (408), and two second connecting pipes (411) are fixedly installed on the second rotating disk (402), the two second connecting pipes (411) are located on both sides of the second partition block (409) and are connected to the second slide groove (408); The first rotating disk (401), the second rotating disk (402) and the third rotating disk (403) are all provided with connecting holes (412).

3. A closed sputum suction tube with adjustable head end according to claim 2, characterized in that: The first sliding block (406) is sealed to the first sliding groove (404) via a sealing member, and the second sliding block (410) is sealed to the second sliding groove (408) via a sealing member.

4. The closed sputum suction tube with adjustable head end according to claim 3, characterized in that: The steering mechanism also includes a pressure component that drives the second rotating disk (402) to rotate on the first rotating disk (401) and drives the third rotating disk (403) to rotate on the second rotating disk (402).

5. The closed sputum suction tube with adjustable head end according to claim 4, characterized in that: The pressure-applying assembly comprises a support seat (413) fixedly mounted on the suction tube connector (2), two adjustment boxes (414) fixedly mounted on the support seat (413), delivery pipes (415) fixedly mounted at both ends of the adjustment box (414), the delivery pipes (415) being connected to the interior of the adjustment box (414), a pressure plate (416) being slidably mounted in the adjustment box (414), a screw rod (417) being fixedly mounted on the pressure plate (416), an internal threaded rod (418) being rotatably mounted on one end of the adjustment box (414), the internal threaded rod (418) being threadedly connected to the screw rod (417), the internal threaded rod (418) penetrating one side of the adjustment box (414) and extending to the outside of the adjustment box (414), and a handle (419) being fixedly mounted on one end of the internal threaded rod (418) located on the outside of the adjustment box (414); The two delivery pipes (415) on one of the regulating boxes (414) correspond one-to-one to the two first connecting pipes (407) and are fixedly connected, and the two delivery pipes (415) on the other regulating box (414) correspond one-to-one to the two second connecting pipes (411) and are fixedly connected; The regulating box (414), the delivery pipe (415), the first connecting pipe (407), the second connecting pipe (411), the first chute (404) and the second chute (408) are filled with driving liquid.

6. The closed sputum suction tube with adjustable head end according to claim 5, characterized in that: The pressing plate (416) is provided with a groove, and a sealing ring (420) is fixedly installed in the groove.

7. The closed sputum suction tube with adjustable head end according to claim 1, characterized in that: The flushing pipeline comprises a connection box (701) fixedly installed in the plastic suction head (5), the connection box (701) is provided with a plurality of connection ports (702) corresponding to the flushing openings (7), a flushing tube (703) is fixedly installed on the connection box (701), a flushing connector (704) is fixedly installed on the suction tube connector (2), the flushing connector (704) is fixedly connected to the flushing tube (703), an elbow (705) is fixedly installed on one of the flushing openings (7) close to the camera (6), and the other end of the elbow (705) faces the camera (6).

8. The closed sputum suction tube with adjustable head end according to claim 1, characterized in that: The plastic suction head (5) is provided with a plurality of suction holes (8).

9. The closed sputum suction tube with adjustable head end according to claim 1, characterized in that: The three-way connector (1) comprises a trachea plug connection end (101) and a ventilator interface end (102).

10. The closed sputum suction tube with adjustable head end according to claim 1, characterized in that: The sputum suction tube connector (2) comprises a pressing valve (201) and a connector (202) fixedly mounted on the pressing valve (201).

Citation Information

Patent Citations

  • Visible phlegm suction tube

    CN103845787A

  • Aspirator and aspiration system

    CN118403237A

  • Automatic flushing closed sputum suction tube

    CN118557872A

  • Closed sputum suction tube

    CN209253731U

  • Multifunctional flushing and suction device matched with neuroendoscopic surgery

    CN216124579U

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