Tracheotomy cannula sputum collecting device

By designing a tracheostomy cannula sputum collection device, the problems of inability to collect sputum centrally and cross-infection were solved, enabling accurate measurement and safe collection of sputum, reducing the risk of environmental pollution, and improving the convenience of patient care.

CN223529817UActive Publication Date: 2025-11-11THE PEOPLES HOSPITAL OF GUANGXI ZHUANG AUTONOMOUS REGION
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Patent Information

Application Number
CN202422791243.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-11-11
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

The lack of sputum collection devices after tracheotomy makes it impossible to collect sputum, affecting treatment decisions and increasing the risk of cross-infection.

Method used

A tracheostomy cannula sputum collection device was designed, including a connecting tube, a sputum collection mask, and a graduated bottle. Sputum is introduced into the sputum collection mask through the connecting tube, and the sputum is collected by a baffle and a filter screen. The volume is measured through the graduated bottle. The suction channel and valve in the sputum collection mask facilitate the suction operation. The oxygen port on the connecting tube provides additional oxygen and is plugged with a silicone seal to prevent dust from entering.

Benefits of technology

It enables centralized collection and accurate measurement of sputum, reduces the risk of cross-infection, improves the convenience and safety of sputum testing, and reduces environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sputum collecting device for a tracheotomy cannula. The sputum collecting device comprises a connecting tube, a sputum collecting cover and a graduated bottle, one end of the connecting pipe is provided with a fixing ring, and the other end is connected with one side of the sputum collecting cover; one end of the connecting tube is communicated with the tracheotomy cannula; the sputum collecting cover is provided with a filter screen, a vent hole and a liquid outlet; the left side of the sputum collecting cover is connected with the other end of the connecting pipe; the top end of the liquid outlet is connected with the bottom end of the sputum collecting cover, and the bottom end is connected with the graduated bottle; the plurality of vent holes are uniformly distributed in the top and the right side of the sputum collecting cover; a filter screen and a baffle are arranged on the inner wall of the sputum collecting cover; sputum is transferred into the sputum collecting cover body through the connecting pipe, the sputum of a patient can be effectively intercepted and collected through the baffle and collected into the graduated bottle through the sputum outlet, the problem that the sputum is not contained in a container is solved, the filter screen can filter dust to avoid polluting the trachea and filter aerosol in carbon dioxide, and the sputum collecting cover is simple in structure and convenient to use. The risk of cross infection is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a tracheostomy cannula sputum collection device. Background Technology

[0002] Tracheotomy involves cutting open the cervical trachea and inserting a metal tracheostomy tube or a silicone tracheostomy tube. It is a common surgical procedure to relieve respiratory distress caused by laryngeal dyspnea, respiratory dysfunction, or lower respiratory tract secretion retention. It is mainly used to help patients who cannot breathe through a normal airway.

[0003] A tracheostomy cannula is a device placed in the trachea after a tracheostomy to maintain airway patency. Its main functions include: providing a breathing channel for patients who cannot breathe through a normal airway; helping to clear airway secretions; reducing the risk of ventilator-associated pneumonia; and facilitating the care of patients on long-term mechanical ventilation.

[0004] Patients with indwelling tracheostomies are more likely to cough up sputum compared to those without. One of the main purposes of tracheostomy is to facilitate sputum expectoration, clear the airway, and collect sputum to monitor changes in the patient's condition, assess treatment effectiveness, promptly identify and manage potential complications, and understand the patient's airway status and respiratory function to adjust the treatment plan. However, current technology lacks relevant sputum collection devices, resulting in a lack of containers to collect coughed-up sputum, making it difficult to accurately determine the amount of sputum. Furthermore, without a collection device, the aerosols generated during coughing are directly suspended in the air, easily contaminating the surrounding environment and increasing the risk of cross-infection. Utility Model Content

[0005] The purpose of this invention is to provide a tracheostomy cannula sputum collection device that facilitates the collection and counting of sputum volume, reduces the risk of cross-infection, is easy to operate, and yields simple results. This addresses the technical problems in the existing technology of lacking relevant sputum collection devices, being unable to collect sputum centrally, resulting in inaccurate judgment of the patient's sputum volume, affecting subsequent treatment, and causing cross-infection due to easy environmental contamination when the patient coughs.

[0006] To solve the above technical problems, the solution adopted by this utility model is as follows:

[0007] A tracheostomy cannula sputum collection device includes a connecting tube, a sputum collection mask, and a graduated bottle. One end of the connecting tube has a fixing ring, and the other end is connected to one side of the sputum collection mask. One end of the connecting tube is fixed to and communicates with the tracheostomy cannula used by the patient via the fixing ring, and the connecting tube is sleeved on the tracheostomy cannula. The sputum collection mask has a filter screen, ventilation holes, and a liquid outlet. The left side of the sputum collection mask is connected to the connecting tube, and the sputum collection mask gradually tapers from top to bottom. The top end of the liquid outlet is fixedly connected to the bottom end of the sputum collection mask, and the bottom end is threadedly connected to the graduated bottle. Several ventilation holes are provided, evenly distributed on the top and right side of the sputum collection mask. The filter screen is fixedly installed on the inner wall of the sputum collection mask, and the filter screen can prevent dust from the air. The material enters the sputum collection mask and then enters the patient's trachea through the connecting tube, preventing contamination of the trachea. This also prevents the exhaled carbon dioxide from carrying aerosols produced by coughing into the air and polluting the environment. The sputum collection mask has an internal baffle. The baffle is arc-shaped when viewed from the front, tapering at the bottom to form a pointed outlet directly opposite the sputum collection mask's outlet. The baffle arches inwards towards the connecting tube, gradually moving away from the connecting tube from top to bottom, forming a streamlined curved surface that partially encloses the right end of the connecting tube. The edges of the baffle widen from top to bottom and then narrow, reaching their maximum inward arch when the arc distance between the two edges is widest, at which point the baffle contacts the front and rear inner walls of the sputum collection mask. The patient's sputum is discharged through the tracheostomy tube and enters the sputum collection mask through the connecting tube. It is intercepted by the baffle and, under the action of gravity, gathers and drips along the streamlined baffle to the outlet, where it is collected by the graduated bottle at the bottom. The baffle gradually widens and arches inward on both sides, which can also expand the range of sputum interception when the patient is lying on his side, reducing the contamination of the inside of the sputum collection mask.

[0008] Furthermore, the connecting tube is equipped with an oxygen inlet and a silicone plug; the oxygen inlet is located at the top of the middle part of the connecting tube; the silicone plug is matched with the oxygen inlet. When the patient has difficulty breathing, medical staff connect an oxygen tube through the oxygen inlet to supply oxygen to the patient. When oxygen is not needed, the corresponding silicone plug is used to block the inlet, preventing external dust from entering the patient's trachea through the oxygen inlet and causing infection.

[0009] Furthermore, the sputum collection mask is equipped with a suction channel and a valve. The suction channel is located inside the upper part of the sputum collection mask, and is arc-shaped when viewed from the front. One end of the suction channel is connected to the baffle, and the other end extends out of the sputum collection mask and connects to the valve. The valve has a four-leaf structure, allowing the catheter to be inserted and removed while maintaining a seal. The arc-shaped suction channel above the sputum collection mask facilitates medical staff to insert the suction tube of the suction device into the connecting tube and then into the patient's tracheostomy cannula for suctioning when the patient is unable to cough up sputum. When suctioning is not required, the valve can close the suction channel to prevent dust from entering. The arc-shaped suction channel also facilitates the guidance of the suction tube of the suction device, making it easier for the suction tube to be inserted into the tracheostomy cannula.

[0010] Furthermore, the fixing ring has fixing ring holes; there are four fixing rings, evenly distributed at one end of the connecting tube; a soft fixing rope is connected to the fixing ring hole. One end of the fixing rope is tied tightly to the fixing ring hole of the fixing ring, and the other end is wrapped around the back of the patient's neck and tied tightly to fix the connecting tube. This reduces the pulling and weight-bearing on the tracheostomy tube by the sputum collection mask and the graduated bottle after collecting sputum, and avoids the sputum collection mask and the graduated bottle pulling on the tracheostomy tube through the connecting tube, causing discomfort to the patient.

[0011] The working principle of this utility model is as follows:

[0012] In use, the connecting tube of the device is fitted onto the tracheostomy cannula. The connecting tube is secured with an external fixing rope and a fixing ring. When the patient coughs up sputum, the sputum flows through the connecting tube into the sputum collection mask, is intercepted by the baffle, and drips down the baffle under gravity to the outlet, then flows to the graduated bottle at the bottom for collection. The filter screen can filter dust in the air and aerosols carried by exhaled carbon dioxide inside. When the patient has difficulty breathing, medical staff can connect an oxygen tube through the oxygen port to supply oxygen to the patient. When oxygen is not needed, the corresponding silicone stopper is used to block the oxygen supply. When the patient cannot cough up sputum, medical staff can insert the suction tube of the suction device from the suction channel into the connecting tube through the suction channel and the valve, and then into the tracheostomy cannula to suction out the patient's sputum, thus preventing the patient from experiencing difficulty breathing.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a connecting tube to transfer sputum from the tracheostomy tube into the sputum collection mask. The baffle can effectively intercept and collect the patient's sputum, preventing it from being discharged from the ventilation port. The sputum is then collected into a graduated bottle through the outlet, avoiding the problem of sputum not having a container and reducing pollution to the surrounding environment. At the same time, the graduated bottle can accurately measure the amount of sputum in the patient, making it easier to assess the patient's condition. The filter screen can filter out dust in the air to prevent contamination of the trachea and can also filter aerosols in the patient's exhaled carbon dioxide, reducing the risk of cross-infection.

[0015] 2. The oxygen port on the connecting tube of this utility model can provide additional oxygen when the patient has difficulty breathing. The silicone plug can prevent external dust from entering the patient's trachea through the oxygen port when oxygen supply is not needed, thereby avoiding tracheal infection.

[0016] 3. The suction channel and valve design inside the sputum collection mask of this utility model make it convenient for medical staff to perform sputum suction when the patient cannot cough up sputum, thus improving the convenience and accuracy of sputum detection. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the sputum collection mask of this utility model;

[0020] Figure 4 This is a schematic diagram of the fixing ring structure of this utility model.

[0021] In the diagram: 1. Connecting tube; 11. Oxygen inlet; 12. Silicone plug; 2. Baffle; 3. Sputum collection mask; 31. Filter screen; 32. Ventilation port; 33. Liquid outlet; 4. Graduated bottle; 5. Suctioning channel; 6. Valve; 7. Fixing ring; 71. Fixing ring hole; 8. Tracheostomy tube. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] The following is a detailed description of the tracheostomy cannula sputum collection device of this utility model, with reference to the accompanying drawings: Example

[0025] A tracheostomy cannula sputum collection device, fitted onto a tracheostomy cannula 8, includes a connecting tube 1, a sputum collection mask 3, and a graduated bottle 4; one end of the connecting tube 1 is provided with a fixing ring 7, and the other end is connected to one side of the sputum collection mask 3; one end of the connecting tube 1 is fixed to and communicates with the tracheostomy cannula 8 used by the patient via the fixing ring 7; the graduated bottle 4 is threadedly connected to the bottom end of the sputum collection mask 3; the sputum collection mask 3 is provided with a filter screen 31, a ventilation hole 32, and a liquid outlet 33; The left side of the sputum collection mask 3 is connected to the other end of the connecting pipe 1; the top end of the liquid outlet 33 is fixedly connected to the bottom end of the sputum collection mask 3, and the bottom end is threadedly connected to the graduated bottle 4; several ventilation holes 32 are provided, evenly distributed on the top and right side of the sputum collection mask 3; the filter screen 31 is fixedly installed on the inner wall of the sputum collection mask 3; a baffle 2 is provided inside the sputum collection mask 3; the baffle 2 is arc-shaped when viewed from the front, and the bottom is tapered into a pointed outlet, which is directly opposite the liquid outlet 33 of the sputum collection mask 3.

[0026] The working principle of this embodiment is as follows:

[0027] In use, the connecting tube 1 of this device is sleeved onto the tracheostomy sleeve 8, and the connecting tube 1 is fixed by the fixing ring 7. When the patient coughs up sputum, the sputum flows through the connecting tube 1 into the sputum collection mask 3, is intercepted by the baffle 2, and is collected and dripped down to the outlet 33 by gravity. The sputum flows through the outlet 33 to the graduated bottle 4 at the bottom for collection. The filter screen 31 can filter dust in the air and aerosols carried by exhaled carbon dioxide inside, preventing dust from entering the sputum collection mask 3 through the ventilation hole 32 and then entering the patient's trachea through the connecting tube 1, causing infection. It also prevents carbon dioxide produced when the patient coughs from carrying cough aerosols into the air through the ventilation hole 31 and polluting the environment. Example

[0028] The difference from Embodiment 1 is that the connecting tube 1 is provided with an oxygen inlet 11 and a silicone plug 12; the oxygen inlet 11 is located at the top of the middle part of the connecting tube 1; the silicone plug 12 matches the oxygen inlet 11; the sputum collection mask 3 is provided with a suction channel 5 and a valve 6; the suction channel 5 is fixedly installed inside the upper part of the sputum collection mask 3, and is arc-shaped when viewed from the front, with one end connected to the baffle 2 and the other end connected to the valve 6 extending out of the sputum collection mask 3; the fixing ring 7 is provided with a fixing ring hole 71; there are four fixing rings 7, evenly distributed at one end of the connecting tube 1; a fixing rope is connected to the outside of the fixing ring hole 71.

[0029] One end of the fixing rope is tied tightly to the fixing ring hole 71 of the fixing ring 7, and the other end is wrapped around the back of the patient's neck and tied tightly to fix the connecting tube 1. After the patient's sputum is discharged from the tracheotomy tube 8, it enters the interior of the sputum collection mask 3 through the connecting tube 1. It is intercepted by the baffle 2 and, under the action of gravity, gathers and drips along the streamlined baffle 2 to the outlet 33, where it is collected by the graduated bottle 4 at the bottom. When the patient has difficulty breathing, medical staff connect the oxygen tube through the oxygen port 11 to supply oxygen to the patient. When oxygen is not needed, the corresponding silicone plug 12 is used to block the oxygen supply to prevent external dust from entering the patient's trachea through the oxygen port 11 and causing infection. The sputum collection mask 3 has a suction channel 5 at the top inside, which allows medical staff to use a suction device to suction out sputum when the patient cannot cough it up. When suctioning is not needed, the valve 6 can close the suction channel 5 to prevent dust from entering.

[0030] The working principle of this embodiment is the same as that of Embodiment 1.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tracheostomy cannula sputum collection device, fitted onto a tracheostomy cannula (8), characterized in that: It includes a connecting tube (1), a sputum collection mask (3), and a graduated bottle (4); one end of the connecting tube (1) is provided with a fixing ring (7), and the other end is connected to one side of the sputum collection mask (3); one end of the connecting tube (1) is fixed to the tracheostomy tube (8) through the fixing ring (7) and communicates with it; The sputum collection mask (3) is provided with a filter screen (31), a vent (32) and a liquid outlet (33); the left side of the sputum collection mask (3) is connected to the connecting pipe (1); the top of the liquid outlet (33) is fixedly connected to the bottom of the sputum collection mask (3), and the bottom is threadedly connected to the graduated bottle (4); there are several vents (32), which are evenly distributed on the top and right side of the sputum collection mask (3); the filter screen (31) is fixedly installed on the inner wall of the sputum collection mask (3); a baffle (2) is provided inside the sputum collection mask (3); the baffle (2) is arc-shaped when viewed from the front, and the bottom is tapered into a pointed outlet, which is directly opposite the liquid outlet (33) of the sputum collection mask (3).

2. The tracheostomy cannula sputum collection device according to claim 1, characterized in that: The connecting tube (1) is provided with an oxygen inlet (11) and a silicone plug (12); the oxygen inlet (11) is located at the top of the middle part of the connecting tube (1); the silicone plug (12) is matched with the oxygen inlet (11).

3. The tracheostomy cannula sputum collection device according to claim 1, characterized in that: The sputum collection mask (3) is provided with a suction channel (5) and a valve (6); the suction channel (5) is located inside the sputum collection mask (3), is arc-shaped when viewed from the front, one end is connected to the baffle (2), and the other end extends out of the sputum collection mask (3) and is connected to the valve (6).

4. The tracheostomy cannula sputum collection device according to claim 1, characterized in that: The fixing ring (7) is provided with a fixing ring hole (71); there are four fixing rings (7), which are evenly distributed at one end of the connecting pipe (1); a fixing rope is connected to the fixing ring hole (71).