Sputum suction tube

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a sputum suction tube which comprises a hose used for stretching into the respiratory tract of a patient to suck sputum and a connecting joint arranged at the end, away from the free end, of the hose and used for connecting negative pressure extraction equipment and the hose, and a tube sleeve is arranged on the side, close to the connecting joint, of the hose. A protective shell forming a containing cavity with the hose is fixedly installed on the outer side of the hose, a traction rope is arranged in the containing cavity, one end of the traction rope is fixedly connected with the side, close to the free end of the hose, of the protective shell, and the other end of the traction rope penetrates through the pipe sleeve. Through the arrangement of the traction rope and the pipe sleeve, an operator pulls one end of the traction rope to easily contract the portion, stretching into the respiratory tract of a patient, of the hose from the stretching state to the compact state, then the hose is conveniently stuffed into the pipe sleeve to be recycled, spattering of sputum and secretions is effectively avoided, and compared with a traditional folding and wrapping method, the operation is simple, and the cost is low. Due to the design of the traction rope, the hose can be processed more simply and quickly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical appliances, and particularly relates to a sputum suction tube. BACKGROUND

[0002] In clinical medical practice, sputum suction is a common nursing operation, which is mainly used for helping patients who cannot discharge sputum by themselves to remove respiratory tract secretions to keep the respiratory tract unobstructed. The traditional sputum suction tube is usually composed of a soft tube which is soft and has certain toughness, one end of which is designed to be inserted into the respiratory tract of a patient to suck sputum, and the other end of which is connected to a negative pressure extraction device to extract sputum to a collection device through the action of negative pressure.

[0003] After the sputum suction operation is completed, the used soft tube usually has sputum and secretions of the patient, and the handling of the sputum suction tube in the clinic is generally that a hand wearing a sterile glove is used to fold the soft tube and then the sterile glove is taken off from the hand to wrap the soft tube, which is then discarded into a medical waste bin. This method is not only complicated to operate, but also has limited protection effect. At the same time, due to the length and softness of the soft tube, the sputum adhered to the soft tube is easy to splash during the folding process of the soft tube, which can easily cause the risk of cross infection. SUMMARY

[0004] In view of the above problems, the utility model aims to provide a sputum suction tube to solve the problems in the background.

[0005] To achieve the above purpose, the utility model adopts the technical scheme of a sputum suction tube, which comprises a soft tube for inserting into the respiratory tract of a patient to suck sputum and a connecting joint arranged at one end of the soft tube away from the free end for connecting the negative pressure extraction device and the soft tube. A sleeve for recycling the used soft tube is arranged on the side of the soft tube close to the connecting joint. A protective shell is fixedly arranged on the outside of the soft tube to form a containing cavity with the soft tube. A pull rope is arranged in the containing cavity, one end of which is fixedly connected to the side of the protective shell close to the free end of the soft tube, and the other end of which penetrates through the sleeve. The soft tube inserted into the respiratory tract of the patient can be retracted and easily inserted into the sleeve for recycling by pulling the pull rope.

[0006] The utility model has the beneficial effects that by arranging the pull rope and the sleeve, the operator can easily retract the soft tube inserted into the respiratory tract of the patient from the stretched state to the compact state by pulling one end of the pull rope, and then the soft tube can be easily inserted into the sleeve for recycling, which effectively avoids the splashing of sputum and secretions, thereby greatly reducing the risk of cross infection. Compared with the traditional folding and wrapping method, the pull rope design of the utility model makes the handling of the soft tube more simple and fast, saving the time and effort of medical staff.

[0007] In order to facilitate the complete insertion of the soft tube into the sleeve:

[0008] As a further improvement of the above technical solution: the opening size of the sleeve away from the connecting joint end is larger than the diameter of the hose, so that the hose is smoothly inserted into the sleeve.

[0009] The beneficial effects of this improvement are: because the hose will wrinkle or overlap after shrinking, its transverse size may be larger than the original size, and the opening size of the sleeve away from the connecting joint end is larger than the diameter of the hose, so that the hose is more smoothly inserted into the sleeve, reducing the difficulty of operation caused by size mismatch, in addition, the larger opening also helps to ensure that the hose is completely inserted into the sleeve, improving the sealing and safety.

[0010] In order to avoid the hose after shrinking from sliding out of the sleeve:

[0011] As a further improvement of the above technical solution: the side of the sleeve close to the free end of the hose is provided with two symmetrical locking clamps, when the hose is inserted into the sleeve, the pulling rope is wound around the sleeve in turn and fixed to one of the locking clamps, avoiding the hose from sliding out of the sleeve.

[0012] The beneficial effects of this improvement are: the locking clamp is the point of fixing the pulling rope, and is designed in a non-linear shape to facilitate the fixation of the pulling rope, which can be U-shaped or L-shaped, the hose material is relatively soft, which can be silicone material and has elasticity, at the same time, the protective shell and the hose use the same material to avoid damage to the respiratory tract of the patient, after the shrunk hose is inserted into the sleeve, the hose may slide out of the sleeve, the pulling rope extending out of the side of the sleeve is wound around the sleeve in turn and fixed to one of the locking clamps, avoiding the hose from sliding out of the sleeve.

[0013] In order to be able to use the device to smoothly suck sputum:

[0014] As a further improvement of the above technical solution: the accommodating cavity is a closed chamber.

[0015] The beneficial effects of this improvement are: the closed accommodating cavity can provide additional protection and support for the hose, and secondly, when the hose is inserted into the patient's respiratory tract to suck sputum, it can also prevent sputum from entering the accommodating cavity and affecting the effect of sputum extraction, and when the hose is shrunk, it helps to keep the sputum suction tube clean and hygienic, improving its use effect and safety.

[0016] In order to make the sleeve adapt to different angles and positions of bending:

[0017] As a further improvement of the above technical solution: the sleeve can be designed as a bellows.

[0018] The improved beneficial effect is that the pipe sleeve can adopt the design of a corrugated pipe, the corrugated pipe has good flexibility and durability, can adapt to bending of different angles and positions, and makes the sputum suction tube more flexible and convenient during use.

[0019] In order to control the flow direction of sputum and prevent backflow:

[0020] As a further improvement of the above technical solution: the inside of the hose and the side close to the connecting joint are provided with a duckbill valve.

[0021] The improved beneficial effect is that by arranging the duckbill valve in the hose, when the negative pressure sputum suction equipment is started and negative pressure is generated, the air in the hose is extracted to form a low-pressure area, the low-pressure area generates an outward suction force on the shutter of the duckbill valve, under the action of negative pressure, the shutter of the duckbill valve overcomes the internal resistance and automatically opens outward, thereby allowing sputum to be extracted along the hose and transported into the collecting device, when the negative pressure sputum suction equipment is turned off, the duckbill valve is closed to avoid the extracted sputum from flowing back into the patient's body and causing secondary infection.

[0022] In order to ensure the sealing between the pipe sleeve and the hose and prevent external pollution from entering:

[0023] As a further improvement of the above technical solution: the side wall of the pipe sleeve and the outside of the pull rope are provided with a sealing ring.

[0024] The improved beneficial effect is that the design of the sealing ring further enhances the sealing between the pipe sleeve and the hose, effectively prevents the entry of external pollutants, and this design not only improves the hygiene and safety of the sputum suction tube, but also ensures the stability and reliability during long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the utility model;

[0026] Figure 2 It is a top view structural schematic view of the utility model;

[0027] Figure 3 It is a front view sectional structural schematic view of the utility model;

[0028] Figure 4 It is an enlarged structural schematic view of A in the utility model.

[0029] In the drawing: 1, hose; 2, connecting joint; 3, pipe sleeve; 4, containing cavity; 5, protective shell; 6, pull rope; 7, locking clamp; 8, duckbill valve; 9, sealing ring. DETAILED DESCRIPTION

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0031] The existing suction tube of this utility model mainly includes a flexible tube 1 for inserting into the patient's airway to suction sputum, and a connecting connector 2 located at the end of the flexible tube 1 away from the free end for connecting a negative pressure suction device and the flexible tube 1. In use, the two ends of the connecting connector 2 are connected to the suction negative pressure device and the suction flexible tube 1 respectively by plugging or threading. The free end of the flexible tube 1 is inserted into the airway along the patient's mouth. When the suction negative pressure device is turned on, a negative pressure is generated in the flexible tube 1, and the sputum in the airway is suctioned out along the flexible tube 1. The above is an introduction to the existing suction tube.

[0032] As can be seen from the above, existing suction catheters have the following defects when in use. After the suctioning operation is completed using the above suction catheter, the used tubing 1 often contains sputum and the patient's secretions. Clinically, the suction catheter is usually disposed of by folding the tubing 1 with a sterile gloved hand, removing the sterile glove from the hand and wrapping the tubing 1, and then discarding it into the medical waste bin. Because the tubing 1 has a certain length and flexibility, during the folding process, the sputum adhering to the tubing 1 is prone to splashing, which can easily cause the risk of cross-infection. Based on the above problems, this utility model adopts the following improvement method to solve them.

[0033] like Figures 1-4 As shown, a suction catheter includes a flexible tube 1 for inserting into a patient's airway to suction sputum, and a connector 2 located at the end of the flexible tube 1 away from its free end for connecting a negative pressure suction device to the flexible tube 1. A sleeve 3 for retrieving the used flexible tube 1 is installed on the side of the flexible tube 1 near the connector 2. A protective shell 5 is fixedly installed on the outside of the flexible tube 1, forming a receiving cavity 4 with the flexible tube 1. A pull rope 6 is installed inside the receiving cavity 4, with one end fixedly connected to the protective shell 5 near the free end of the flexible tube 1 and the other end passing through the sleeve 3. By setting up the pull rope 6 and the sleeve 3, the operator can easily retract the flexible tube 1, which has been inserted into the patient's airway, from an extended state to a compact form by pulling one end of the pull rope 6, and then conveniently insert it into the sleeve 3 for retrieval. This effectively avoids the splashing of sputum and secretions, thereby greatly reducing the risk of cross-infection. Compared with traditional folding and wrapping methods, the pull rope 6 design of this utility model makes the handling of the flexible tube 1 simpler and faster, saving medical staff time and effort.

[0034] Furthermore, such as Figures 3-4As shown, the transverse dimension of the hose 1 may be larger than the original dimension due to the folding or overlapping of the hose 1 after contraction. Therefore, the opening dimension of the sleeve 3 away from the connecting joint 2 is larger than the diameter of the hose 1, which makes the insertion of the hose 1 into the sleeve 3 more smooth and reduces the operation difficulty caused by the size mismatch. In addition, the larger opening also helps to ensure that the hose 1 is fully inserted into the sleeve 3, improving the sealing and safety.

[0035] Further, as shown in Figures 2-4 The sleeve 3 near the free end of the hose 1 is provided with two symmetrical locking cards 7. The locking card 7 is a point for fixing the pulling rope 6 and is arranged in a non-linear shape to facilitate the fixation of the pulling rope 6. It can be U-shaped or L-shaped. The hose 1 is made of soft material such as silicone and has elasticity. The protective shell 5 and the hose 1 are made of the same material to avoid damage to the respiratory tract of the patient. After the contracted hose 1 is inserted into the sleeve 3, the hose 1 may slip out of the sleeve 3. The pulling rope 6 extending out of the sleeve 3 is wound around the sleeve 3 and fixed to one of the two locking cards 7, avoiding the hose 1 from slipping out of the sleeve 3.

[0036] Further, as shown in Figures 3-4 The closed containment cavity 4 can provide additional protection and support for the hose 1. When the hose 1 is inserted into the respiratory tract of the patient to suck sputum, it can prevent sputum from entering the containment cavity 4 and affecting the sputum extraction effect. When the hose 1 is contracted, it helps to keep the sputum suction tube clean and hygienic, improving its use effect and safety.

[0037] Further, as shown in Figures 1-4 The sleeve 3 can be designed as a bellows. The bellows has good flexibility and durability and can adapt to different angles and positions of bending, making the sputum suction tube more flexible and convenient during use.

[0038] Further, as shown in Figures 3-4 By setting a duckbill valve 8 in the hose 1, when the negative pressure sputum suction equipment is started and negative pressure is generated, the air in the hose 1 is extracted to form a low-pressure area. This low-pressure area will generate an outward suction force on the gate of the duckbill valve 8. Under the action of negative pressure, the gate of the duckbill valve 8 will overcome the internal resistance and automatically open outward, allowing sputum to be extracted along the hose 1 and transported to the collection device. When the negative pressure sputum suction equipment is turned off, the duckbill valve 8 is closed to prevent the extracted sputum from flowing back into the patient's body, causing secondary infection.

[0039] Further, as shown in Figures 3-4As shown, the side wall of the sleeve 3 and located outside the pull rope 6 is provided with a sealing ring 9, which can be made of silica gel, the design of the sealing ring 9 further enhances the sealing between the sleeve 3 and the hose 1, effectively preventing the entry of external contaminants, which not only improves the hygiene and safety of the sputum suction tube, but also ensures its stability and reliability during long-term use.

[0040] It should be noted that in this paper, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device.

[0041] The principle and implementation mode of the present application are described by using specific examples in this paper, and the above examples are only used to help understand the method and its core idea. The above description is only the preferred embodiment of the present application, and it should be pointed out that due to the limitation of language expression, there are objectively infinite specific structures, and for ordinary technical personnel in this technical field, without departing from the principle of the present application, some improvements, decorations or changes can be made, and the above technical features can be combined in a proper way; these improvements, decorations, changes or combinations, or the application of the concept and technical scheme of the invention to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A sputum suction tube comprising a flexible tube (1) for insertion into the respiratory tract of a patient for suctioning sputum and a connection fitting (2) arranged at one end of the tube (1) remote from the free end for connecting a negative pressure suction device to the tube (1), characterized in that: The soft tube (1) is provided with a pipe sleeve (3) for recycling the used soft tube (1) near the side of the connecting joint (2), the outer side of the soft tube (1) is fixedly provided with a protective shell (5) for forming a containing cavity (4) with the soft tube (1), the containing cavity (4) is provided with a pulling rope (6) fixedly connected with the protective shell (5) near the side of the free end of the soft tube (1) and penetrating through the pipe sleeve (3), the soft tube (1) inserted into the respiratory tract of the patient can be contracted and easily put into the pipe sleeve (3) for recycling by pulling the pulling rope (6).

2. The sputum suction tube according to claim 1, characterized in that: The opening size of the pipe sleeve (3) far from the connecting joint (2) is larger than the diameter of the soft tube (1) so as to facilitate the soft tube (1) to be smoothly put into the pipe sleeve (3).

3. The sputum suction tube according to claim 1, characterized in that: The pipe sleeve (3) is provided with two symmetrical locking clamps (7) near the side of the free end of the soft tube (1), the pulling rope (6) is wound on the two locking clamps (7) in sequence and fixed to one of the locking clamps (7) after the soft tube (1) is put into the pipe sleeve (3), so as to avoid the soft tube (1) from sliding out of the pipe sleeve (3).

4. The sputum suction tube according to claim 1, characterized in that: The containing cavity (4) is a closed cavity.

5. The sputum suction tube according to claim 1, characterized in that: The pipe sleeve (3) can be designed as a bellows.

6. The sputum suction tube according to claim 1, characterized in that: The inner side of the soft tube (1) near the connecting joint (2) is provided with a duckbill valve (8).

7. The sputum suction tube according to claim 1, characterized in that: The side wall of the pipe sleeve (3) outside the pulling rope (6) is provided with a sealing ring (9).

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