Closed sputum collection device

Abstract

The utility model relates to medical supplies technical field especially, more particularly to a closed sputum collecting device, including T type pipe joint, control end connector and sputum suction tube, and sputum suction tube is covered with transparent soft film cover, T type pipe joint includes T type pipe connecting end and first interface end, second interface end, the transparent soft film cover is connected with air bag device, be connected and be provided with a switch control valve on control end connector, the switch control valve is connected with the flow guide pipe, the flow guide pipe includes flow guide import end, collection end and negative pressure connecting end connected with external negative pressure equipment, the collection end detachably is provided with a sputum collecting bottle, first flow guide passage is formed between flow guide import end and collection end, second flow guide passage is formed between negative pressure connecting end and collection end, first flow guide passage and second flow guide passage stretch into sputum collecting bottle. Its solved the existing sputum collecting, easy to suck sputum into the technical problem of negative pressure equipment.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to a closed sputum collection device. Background Technology

[0002] Currently, sputum collection is a common and important procedure in the medical and nursing field. For example, a closed suction catheter disclosed in Chinese Patent Publication No. CN212326448U belongs to the field of medical and nursing supplies technology. It solves the problem of inconvenient operation when using existing suction catheters for sputum sampling. This closed suction catheter includes a T-shaped tube, a suction tube, and a negative pressure control switch. The front end of the suction tube is connected to the T-shaped tube, and the rear end is connected to the negative pressure control switch. The key feature is that a sputum culture sampler is detachably connected to the rear end of the negative pressure control switch, and the sputum culture sampler is connected to a negative pressure suction device.

[0003] However, current sputum collection methods require introducing sputum into a collection bottle, but due to negative pressure drainage, sputum is easily drawn into the negative pressure equipment. Therefore, achieving effective sputum drainage and collection is crucial. Summary of the Invention

[0004] Therefore, in view of the above problems, this utility model proposes a closed sputum collection device, which solves the technical problem that sputum is easily sucked into the negative pressure equipment during existing sputum collection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a closed sputum collection device, comprising a T-shaped tube connector, a control end connector, and a suction tube connected between the T-shaped tube connector and the control end connector. A transparent soft membrane sleeve is provided between the T-shaped tube connector and the control end connector and outside the suction tube. The T-shaped tube connector includes a T-shaped tube connection end connected to the suction tube and a first interface end and a second interface end for connecting to external devices. An airbag device for inflation or deflation is connected to the transparent soft membrane sleeve. A switch control valve is connected to the control end connector. The switch control valve is connected to a guide tube. The guide tube includes a guide inlet end connected to the switch control valve, a collection end, and a negative pressure connection end connected to an external negative pressure device. A sputum collection bottle is detachably provided on the collection end. A first guide channel is formed between the guide inlet end and the collection end, and a second guide channel is formed between the negative pressure connection end and the collection end. The first and second guide channels extend into the sputum collection bottle.

[0006] Furthermore, the switch control valve includes a valve body, on which a valve inlet end connected to a control terminal connector and a valve outlet end connected to a guide pipe are provided. A flow channel is formed between the valve inlet end and the valve outlet end. A lower connecting hole is provided in the middle of the flow channel, and an upper connecting hole is provided in the middle of the flow channel corresponding to the lower connecting hole. A lower sealing membrane is provided at the lower connecting hole to close the lower connecting hole, and an upper sealing membrane is provided at the upper connecting hole to close the upper connecting hole. An upper cavity is provided on the valve body connected to the upper connecting hole. A control mechanism for controlling the rise and fall of the upper sealing membrane is provided in the upper cavity. When the upper sealing membrane rises, the flow channel is opened; when the lower sealing membrane falls, the flow channel is closed.

[0007] Furthermore, the upper cavity is provided with a control port communicating with the outside. The control mechanism includes a button that can be extended and retracted on the control port, a connecting leg provided at the lower end of the button, and a spring plate provided at the lower end of the connecting leg. The spring plate is recessed into the upper communicating hole and connected to the upper sealing membrane. An upper spring is provided between the middle part of the spring plate and the lower end of the button.

[0008] Furthermore, an upper magnet is provided on the upper side of the upper sealing membrane, and a lower magnet is provided on the lower side of the lower sealing membrane. When the upper sealing membrane and the lower sealing membrane are close together, the upper magnet and the lower magnet attract each other.

[0009] Furthermore, the valve body is provided with a lower cavity at the lower end of the lower connecting hole, which communicates with the lower connecting hole, and a lower spring is provided in the lower cavity to pull the lower sealing membrane downward.

[0010] Furthermore, the lower end of the first flow channel is lower than the lower end of the second flow channel, the opening of the first flow channel faces downwards, and the opening of the second flow channel faces to the side.

[0011] Furthermore, a sealing ring is provided on the guide tube, and the sputum collection bottle is threadedly connected to the guide tube. When threadedly connected, the upper end of the sputum collection bottle abuts against the sealing ring to form a seal.

[0012] Furthermore, a dosing tube is provided on the first interface end.

[0013] Furthermore, a cleaning tube is connected to the T-shaped tube connection end.

[0014] By adopting the aforementioned technical solution, the beneficial effects of this utility model are: 1. This solution presents a closed sputum collection device. A transparent soft membrane sleeve, covering the suction tube between the T-shaped connector and the control connector, creates a sealed space, effectively preventing sputum splashing and reducing the risk of cross-infection. It also facilitates observation of the sputum collection process by medical staff. An airbag device connected to the transparent soft membrane sleeve allows for flexible pressure adjustment within the sleeve, ensuring smooth collection. A switch control valve connected to the control connector precisely controls the flow of sputum, enabling the collection process to begin and end. A negative pressure connection on the guide tube allows connection to an external negative pressure device to provide power for sputum collection, while a detachable sputum collection bottle facilitates sputum collection and subsequent processing.

[0015] The design of the sputum collection tube, including the inlet and collection ends, and the resulting first and second flow channels, allows for orderly flow of sputum during collection. The first and second flow channels extend into the sputum collection bottle, facilitating sputum collection and storage, preventing residue and mixing within the tube, and improving sample quality. This design makes sputum collection more efficient and accurate, providing reliable samples for subsequent testing.

[0016] 2. The unique design of the on / off control valve brings significant benefits. The lower and upper connecting holes in the middle of the flow channel within the valve body, along with the corresponding lower and upper sealing membranes, and the control mechanism within the upper cavity that controls the raising and lowering of the upper sealing membrane, achieve precise control of the flow channel. When the upper sealing membrane rises, the flow channel opens, allowing sputum to flow smoothly; when the lower sealing membrane descends, the flow channel closes, effectively preventing sputum leakage. This design makes the sputum collection process more controllable, improving the accuracy and safety of collection.

[0017] 3. The upper end of the upper cavity is equipped with a control port connecting to the outside, and a control mechanism consisting of a retractable button, connecting legs, and a spring plate, providing convenience for medical staff. Medical staff only need to press the button; through the linkage of the connecting legs and the spring plate, they can control the raising and lowering of the upper sealing membrane, thereby opening and closing the flow channel. The spring plate is recessed into the upper connecting hole and connected to the upper sealing membrane, and the upper spring connecting the middle of the spring plate to the lower end of the button ensures the stability and reliability of the control mechanism, making operation smoother.

[0018] 4. The upper magnet on the upper side of the upper sealing membrane and the lower magnet on the lower side of the lower sealing membrane attract each other when the upper and lower sealing membranes are close together, enhancing the sealing performance of the flow channel when closed. This magnetic attraction design effectively prevents sputum leakage in the closed state, further improving the reliability and safety of the device and ensuring the smooth progress of the sputum collection process.

[0019] 5. A lower cavity, connected to the lower connecting hole, is located at the lower end of the valve body. A lower spring within this cavity pulls the lower sealing diaphragm downwards, providing the power for the lower sealing diaphragm to reset and enabling rapid opening of the flow channel. When the upper sealing diaphragm descends, the presence of the upper magnet causes the lower sealing diaphragm to rise. This design ensures that the lower sealing diaphragm functions accurately and promptly during repeated use, improving the device's lifespan and stability.

[0020] 6. The lower end of the first flow channel is lower than the lower end of the second flow channel, and the opening of the first flow channel faces downwards, while the opening of the second flow channel faces to the side. This unique design facilitates the separation and collection of sputum. Under the influence of gravity, sputum flows more easily through the first flow channel into the bottom of the sputum collection bottle, while the design of the second flow channel facilitates the expulsion of air or other gases, avoiding the mixing of sputum and gas, and further improving the purity and quality of the sample.

[0021] 7. The sealing ring on the drainage tube and the threaded connection between the sputum collection bottle and the drainage tube ensure that, when connected, the upper end of the sputum collection bottle abuts against the sealing ring to form a seal, effectively preventing sputum leakage. This sealing design ensures that the sample inside the sputum collection bottle is not contaminated by external factors, guaranteeing the integrity and accuracy of the sample. Simultaneously, the threaded connection facilitates the installation and removal of the sputum collection bottle, making sample extraction and processing easier.

[0022] 8. The drug delivery tube on the first interface provides convenience for adding medication during sputum collection. The cleaning tube connected to the T-tube connection end facilitates cleaning and disinfection of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the on / off control valve.

[0025] Figure 3 This is a schematic diagram of the open state of the switch control valve.

[0026] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0027] Figure 5 This is a schematic diagram of the structure of the drainage tube and the sputum collection bottle.

[0028] Figure label: 1. T-tube connector; 11. T-tube connection end; 12. First interface end; 13. Second interface end; 14. Dosing tube; 15. Cleaning tube; 2. Control end connector; 3. Suction tube; 4. Soft membrane sleeve; 5. Cuff device; 51. One-way valve; 6. On / off control valve; 61. Valve body; 611. Valve inlet end; 612. Valve outlet end; 613. Flow channel; 614. Lower connecting hole; 615. Upper connecting hole; 616. Upper cavity; 6 17. Control port; 618. Lower cavity; 62. Lower sealing membrane; 63. Upper sealing membrane; 641. Button; 642. Connecting foot; 643. Spring plate; 644. Upper spring; 651. Upper magnet; 652. Lower magnet; 66. Lower spring; 7. Guide tube; 71. Guide inlet end; 72. Collection end; 73. Negative pressure connection end; 74. First guide channel; 75. Second guide channel; 76. Sealing ring; 8. Sputum collection bottle. Detailed Implementation

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0030] refer to Figures 1 to 5 This embodiment provides a closed sputum collection device, including a T-shaped connector 1, a control connector 2, and a suction tube 3 connected between the T-shaped connector 1 and the control connector 2. A transparent soft membrane sleeve 4 covers the suction tube 3 between the T-shaped connector 1 and the control connector 2. The T-shaped connector 1 includes a T-shaped tube connection end 11 connected to the suction tube 3, and a first interface end 12 and a second interface end 13 for connecting to external devices. An airbag device 5 for inflation or deflation is connected to the transparent soft membrane sleeve 4. The control connector 2 is connected to... A switch control valve 6 is provided, and the switch control valve 6 is connected to a guide tube 7. The guide tube 7 includes a guide inlet end 71 connected to the switch control valve 6, a collection end 72, and a negative pressure connection end 73 connected to an external negative pressure device. A sputum collection bottle 8 is detachably mounted on the collection end 72. A first guide channel 74 is formed between the guide inlet end 71 and the collection end 72, and a second guide channel 75 is formed between the negative pressure connection end 73 and the collection end 72. The first guide channel 74 and the second guide channel 75 extend into the sputum collection bottle 8. The lower end of the first guide channel 74 is lower than the lower end of the second guide channel 75 by a difference of 20-30 mm. The opening of the first guide channel 74 faces downward, and the opening of the second guide channel 75 faces sideways, with a distance of 5-10 mm between the second guide channel 74 and the inner side of the sputum collection bottle 8. A sealing ring 76 is provided on the guide tube 7, and the sputum collection bottle 8 is threadedly connected to the guide tube 7. When threadedly connected, the upper end of the sputum collection bottle 8 abuts against the sealing ring 76 to form a seal.

[0031] The switch control valve 6 includes a valve body 61. The valve body 61 is provided with a valve inlet end 611 connected to the control terminal connector 2 and a valve outlet end 612 connected to the guide pipe 7. A flow channel 613 is formed between the valve inlet end 611 and the valve outlet end 612. A lower connecting hole 614 is provided in the middle of the flow channel 613. An upper connecting hole 615 is provided in the middle of the flow channel 613 corresponding to the lower connecting hole 614. A lower sealing membrane 62 is provided at the lower connecting hole 614 to close the lower connecting hole 614. An upper sealing membrane 63 is provided at the upper connecting hole 615 to close the upper connecting hole 615. An upper cavity 616 is provided on the valve body 61 to connect to the upper connecting hole 615. A control mechanism for controlling the rise and fall of the upper sealing membrane 63 is provided in the upper cavity 616. When the upper sealing membrane 63 rises, the flow channel 613 opens. When the lower sealing membrane 62 falls, the flow channel 613 closes.

[0032] The upper cavity 616 has a control port 617 communicating with the outside at its upper end. The control mechanism includes a button 641 that can be extended and retracted on the control port 617, a connecting leg 642 located at the lower end of the button 641, and a spring plate 643 located at the lower end of the connecting leg 642. The spring plate 643 is recessed into the upper communicating hole 615 and connected to the upper sealing membrane 63. An upper spring 644 is connected between the middle part of the spring plate 643 and the lower end of the button 641. An upper magnet 651 is provided on the upper side of the upper sealing membrane 63, and a lower magnet 652 is provided on the lower side of the lower sealing membrane 62. When the upper sealing membrane 63 and the lower sealing membrane 62 are close together, the upper magnet 651 and the lower magnet 652 attract each other. The valve body 61 is provided with a lower cavity 618 at the lower end of the lower connecting hole 614, which communicates with the lower connecting hole 614. The lower cavity 618 is provided with a lower spring 66 that pulls the lower sealing membrane 62 downward.

[0033] A dosing tube 14 is provided on the first interface end 12. A cleaning tube 15 is connected to the T-shaped tube connection end 11.

[0034] The lower sealing membrane 62 and the upper sealing membrane 63 are both rubber films, the upper magnet 651 and the lower magnet 652 are both magnets, and the sealing ring 76 is a rubber ring. The airbag device 5 is a conventional accessory in the art. Adjustable one-way valves 51 are respectively provided at the front and rear ends of the airbag device 5, so as to effectively inflate the soft membrane sleeve 4.

[0035] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A closed sputum collection device, characterized in that: The device includes a T-shaped connector, a control connector, and a suction tube connected between the T-shaped connector and the control connector. A transparent soft membrane sheath covers the suction tube between the T-shaped connector and the control connector. The T-shaped connector includes a T-shaped tube connection end connected to the suction tube and a first interface end and a second interface end for connecting to external devices. The device is characterized in that: an airbag device for inflation or deflation is connected to the transparent soft membrane sheath; a switch control valve is connected to the control connector; the switch control valve is connected to a guide tube; the guide tube includes a guide inlet end connected to the switch control valve, a collection end, and a negative pressure connection end connected to an external negative pressure device; a sputum collection bottle is detachably mounted on the collection end; a first guide channel is formed between the guide inlet end and the collection end; a second guide channel is formed between the negative pressure connection end and the collection end; and the first and second guide channels extend into the sputum collection bottle.

2. The closed sputum collection device according to claim 1, characterized in that: The switch control valve includes a valve body, on which a valve inlet end connected to a control terminal connector and a valve outlet end connected to a guide pipe are provided. A flow channel is formed between the valve inlet end and the valve outlet end. A lower connecting hole is provided in the middle of the flow channel, and an upper connecting hole is provided in the middle of the flow channel corresponding to the lower connecting hole. A lower sealing membrane is provided at the lower connecting hole to close the lower connecting hole, and an upper sealing membrane is provided at the upper connecting hole to close the upper connecting hole. An upper cavity is provided on the valve body connected to the upper connecting hole. A control mechanism for controlling the rise and fall of the upper sealing membrane is provided in the upper cavity. When the upper sealing membrane rises, the flow channel is opened; when the lower sealing membrane falls, the flow channel is closed.

3. The closed sputum collection device according to claim 2, characterized in that: The upper cavity is provided with a control port that communicates with the outside. The control mechanism includes a button that can be extended and retracted on the control port, a connecting leg located at the lower end of the button, and a spring plate located at the lower end of the connecting leg. The spring plate is recessed into the upper communicating hole and connected to the upper sealing membrane. An upper spring is provided between the middle part of the spring plate and the lower end of the button.

4. The closed sputum collection device according to claim 3, characterized in that: An upper magnet is provided on the upper side of the upper sealing membrane, and a lower magnet is provided on the lower side of the lower sealing membrane. When the upper sealing membrane and the lower sealing membrane are close to each other, the upper magnet and the lower magnet attract each other.

5. A closed sputum collection device according to claim 4, characterized in that: The valve body is provided with a lower cavity at the lower end of the lower connecting hole, which communicates with the lower connecting hole. A lower spring is provided in the lower cavity to pull the lower sealing membrane downward.

6. The closed sputum collection device according to claim 1, characterized in that: The lower end of the first flow channel is lower than the lower end of the second flow channel. The opening of the first flow channel faces downward, and the opening of the second flow channel faces to the side.

7. A closed sputum collection device according to claim 1, characterized in that: The guide tube is equipped with a sealing ring, and the sputum collection bottle is threadedly connected to the guide tube. When threadedly connected, the upper end of the sputum collection bottle abuts against the sealing ring to form a seal.

8. A closed sputum collection device according to claim 1, characterized in that: A dosing tube is provided on the first interface end.

9. A closed sputum collection device according to claim 1, characterized in that: A cleaning tube is connected to the T-shaped tube connector.

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