Portable electric sputum aspirator

Abstract

The utility model discloses a portable electric sputum aspirator, which relates to the technical field of sputum aspirators, and comprises a handle, a negative pressure pump, an air pipe and a suction pipe, the negative pressure pump is arranged in the handle, a switch for controlling the negative pressure pump is arranged on the handle, the output end of the negative pressure pump is connected with the air pipe, the portable electric sputum aspirator further comprises a middle cylinder, a partition plate is arranged in the center of the middle cylinder, and the suction pipe is arranged in the middle cylinder. The partition plate divides the middle cylinder into a left cavity and a right cavity which are an auxiliary cavity and a collecting cavity respectively. By arranging the auxiliary cavity and the collecting cavity, the auxiliary cavity and the collecting cavity are isolated through the filter screen, gas enters the auxiliary cavity through the through groove and then is discharged to the outside, sputum directly falls into the collecting barrel, and backflow of the sputum is effectively prevented; the piston block and the spring are arranged in the auxiliary cavity, when the sputum suction cannula is blocked, suction force of the negative pressure pump drives the piston block to move upwards to form a buffer space, mucous membrane damage caused by continuous high pressure is avoided, medical staff can instantly release negative pressure impact force by pulling down the piston rod, blocked sticky sputum can be quickly dredged, and the sputum cleaning effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of suction device technology, specifically relating to a portable electric suction device. Background Technology

[0002] Many critically ill, elderly, and comatose patients have problems with weak cough, sluggish cough reflex, or incomplete swallowing function. They are often unable to clear respiratory secretions on their own, which can lead to symptoms such as shortness of breath, chest tightness, and difficulty breathing. If sputum remains in the respiratory tract for a long time, it can also lead to lung infection. A suction device is a device that uses negative pressure to remove sputum from the body. Currently, suction devices are mainly electric multi-functional negative pressure suction devices and simple manual suction devices. Electric suction devices use the principle of negative pressure for sputum suction and oral care, and are used for routine sputum suction, tracheotomy, and other treatments for patients.

[0003] Suctioning devices are essential medical and nursing equipment, widely used to clear respiratory secretions, especially in emergency care, postoperative care, and the management of chronic respiratory diseases. However, traditional suctioning devices typically have the following problems: traditional negative pressure pumps have fixed suction power, while suctioning devices have limited suction power, making it difficult to effectively remove large or viscous sputum, requiring repeated operation and affecting the patient's breathing patency; sputum collection devices are mostly fixed structures, making disassembly difficult, cleaning incomplete, and prone to bacterial growth; some devices lack sterilization functions, posing a risk of cross-infection. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a portable electric suction device that is superior to traditional suction devices in terms of portability, suction power, hygiene and safety and ease of operation, and can better meet the needs of medical emergency and nursing care.

[0005] The solution adopted by this utility model to solve its technical problem is: a portable electric suction device, including a handle, a negative pressure pump, a trachea, and a suction tube. The negative pressure pump is installed inside the handle, and a switch for controlling the negative pressure pump is provided on the handle. The output end of the negative pressure pump is connected to the trachea. It also includes an intermediate cylinder, and a partition is provided in the center of the intermediate cylinder, which divides the intermediate cylinder into two chambers, namely an auxiliary chamber and a collection chamber, and the tops of the auxiliary chamber and the collection chamber are connected. The tail end of the trachea in the auxiliary chamber is connected to the auxiliary chamber, and the front end of the suction tube is connected to the collection chamber. A suction cannula is provided at the tail end of the suction tube. A sputum collection tube is placed in the collection chamber. A piston block is fitted inside the auxiliary chamber. A piston rod is vertically fixed below the piston block and passes through the bottom of the intermediate cylinder. A spring is fitted on the piston rod, and the piston block is connected to the auxiliary chamber through the spring.

[0006] Furthermore, a connecting section extends below the collection chamber of the intermediate cylinder, and the connecting section is provided with an internal thread. The lower outer wall of the sputum collection cylinder is provided with an external thread that matches the internal thread, and the sputum collection cylinder is threadedly installed inside the collection chamber.

[0007] Furthermore, a through groove is provided at the top of the partition between the auxiliary chamber and the collection chamber, and a filter screen is installed in the through groove.

[0008] Furthermore, an anti-bite plug is fixedly fitted on the suction tube near the suction catheter, and the anti-bite plug is provided with a biting part.

[0009] Furthermore, a filter is provided at the tail end of the trachea, and an ultraviolet disinfection lamp ring is installed around the top of the collection chamber around the entrance of the collection chamber.

[0010] Furthermore, a sealing gasket is provided on the bottom flange of the sputum collection tube to seal the sputum collection tube inside the collection chamber.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention features an auxiliary chamber and a collection chamber, separated by a filter. Gas enters the auxiliary chamber through a channel and is discharged to the outside, while sputum falls directly into the collection tube, effectively preventing backflow. A piston block and spring are installed inside the auxiliary chamber. When the suction tube becomes blocked, the suction force of the negative pressure pump moves the piston block upward, creating a buffer space to prevent continuous high pressure from damaging the mucosa. Medical personnel can also release the negative pressure impact by pulling down the piston rod, quickly clearing the blockage of viscous sputum and improving the sputum removal effect. A sputum collection tube is installed inside the collection chamber, and an ultraviolet disinfection lamp ring is installed at the top of the collection chamber to initially disinfect the inhaled sputum, reducing the risk of bacterial and viral transmission and improving hygiene and safety. This suction device is compact, small in size, and lightweight, making it easy to carry and operate. Operation is simple; a switch controls the start and stop of the negative pressure pump, and the suction tube is rationally designed, allowing even non-professionals to quickly master its operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the intermediate cylinder of this utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the intermediate cylinder of this utility model.

[0016] In the diagram: 1. Handle; 2. Negative pressure pump; 3. Trachea; 4. Intermediate tube; 41. Auxiliary chamber; 42. Collection chamber; 5. Suction tube; 6. Suctioning tube; 7. Anti-bite plug; 8. Occlusal part; 9. Piston block; 10. Piston rod; 11. Spring; 12. Breathing hole; 13. Sputum collection tube; 14. Sealing gasket; 15. Sealing connector; 16. Switch; 17. Filter; 18. Valve; 19. Filter screen; 20. Ultraviolet disinfection lamp ring. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please see Figure 1-3 This utility model provides a technical solution for a portable electric suction device: Example

[0019] according to Figure 1 , Figure 2 and Figure 3 As shown, a portable electric suction device mainly consists of a handle 1, a negative pressure pump 2, an endotracheal tube 3, an intermediate cylinder 4, a suction tube 5, and a suction cannula 6. The negative pressure pump 2 is stably installed inside the handle 1. A switch 16 for controlling the operation of the negative pressure pump 2 is conveniently located on the surface of the handle 1, allowing the operator to quickly start or stop the device. The output end of the negative pressure pump 2 is securely connected to the endotracheal tube 3. A filter 17 is installed at the end of the endotracheal tube 3. The filter 17 uses a multi-layer activated carbon fiber structure to adsorb odors and particles in the exhaust gas, improving the operating environment. When the negative pressure pump 2 is working, air enters through the filter 17, ensuring the cleanliness of the inhaled air and preventing impurities from entering the system and affecting the normal operation of the device.

[0020] A partition is provided at the center of the interior of the intermediate cylinder 4, which divides the intermediate cylinder 4 into two independent cylindrical chambers, namely the auxiliary chamber 41 and the collection chamber 42. A through groove is provided at the top of the partition, and the tops of the auxiliary chamber 41 and the collection chamber 42 are connected through the through groove. A filter screen 19 is installed in the through groove. The filter screen 19 can prevent the sputum in the collection chamber 42 from flowing back and being sucked into the auxiliary chamber 41.

[0021] like Figure 2As shown, sealing connectors 15 are fixedly installed on the intermediate cylinder 4 at positions corresponding to the centers of the auxiliary chamber 41 and the collection chamber 42, respectively. The tail end of the trachea 3 is precisely sealed to the auxiliary chamber 41 through the sealing connectors 15 to ensure unobstructed airflow, and a valve 18 is installed on the trachea 3. The front end of the suction tube 5 is detachably sealed to the collection chamber 42 through the sealing connectors 15. The tail end of the suction tube 5 is provided with a suction catheter 6. The shape and size of the suction catheter 6 are reasonably designed so that it can be easily inserted into the patient's oral cavity, nasal cavity, etc. The suction tube 5 and the suction catheter 6 are disposable medical consumables. When different patients use the suction device, a new suction tube 5 and a new suction catheter 6 are replaced, and the front end of the suction tube 5 is inserted into the collection chamber 42 through the sealing connectors 15.

[0022] A piston block 9 is fitted inside the auxiliary cavity 41. A piston rod 10 is fixedly connected to the lower end of the piston block 9 in a vertical direction. The piston rod 10 extends downward and passes through the bottom of the intermediate cylinder 4. The piston block 9 and the upper space of the auxiliary cavity 41 form a pressure regulating chamber. A breathing hole 12 is opened at the bottom of the auxiliary cavity 41. A spring 11 is fitted on the piston rod 10. One end of the spring 11 is fixedly connected to the piston block 9, and the other end is firmly connected to the bottom of the auxiliary cavity 41. This forms a structure in which the piston block 9 is connected to the inner wall of the auxiliary cavity 41 through the spring 11. The spring 11 has a large elastic force, which is greater than the negative pressure when the patient is suctioning sputum. During normal sputum suction, the piston block 9 is stably supported by the spring 11. During the suctioning process, the negative pressure pump 2 first suctions away the normal sputum in the patient's throat through the trachea 3 and suction tube 5. When encountering large or viscous sputum, the suction force of the negative pressure pump 2 alone cannot quickly remove the sputum. The viscous sputum will block the entrance of the suction tube 6. At this time, the negative pressure pump 2 will overcome the elastic force of the spring 11 and move the piston block 9 upward during the continued inhalation process. The pressure regulating chamber provides a buffer for the continuous suction of the negative pressure pump 2 to prevent the continuous ineffective suction of the negative pressure pump 2 from causing discomfort in the patient's throat.

[0023] When the piston block 9 moves upward, medical staff can observe the change in the pressure regulating chamber through the movement of the piston rod 10. Then, medical staff can quickly pull down the piston rod 10. At this time, the negative pressure pump 2 and the pressure regulating chamber together generate negative pressure. The instantaneous negative pressure force generated by pulling down the piston rod 10 can smoothly suction away large or viscous sputum. The auxiliary chamber 41 can be made of transparent material so that medical staff can observe the position of the piston block 9 and thus judge the sputum suction situation.

[0024] A sputum collection cylinder 13 is provided inside the collection chamber 42. A connecting section extends from the bottom of the collection chamber 42 and is provided with an internal thread. The lower outer wall of the sputum collection cylinder 13 is correspondingly equipped with a matching external thread, so that the sputum collection cylinder 13 can be securely threaded into the collection chamber 42. The sputum collection cylinder 13 can also be easily removed from the collection chamber 42 to clean the collected sputum. A sealing gasket 14 is provided on the bottom flange of the sputum collection cylinder 13 to seal the sputum collection cylinder 13 inside the collection chamber 42. Thus, after the sputum collection cylinder 13 is installed inside the collection chamber 42, the collection chamber 42 and the pressure regulating chamber form a sealed structure.

[0025] In practical use, this portable electric suction device first inserts the suction tube 6 into the area where sputum accumulates in the patient's throat. Then, the operator turns on the switch 16 to start the negative pressure pump 2. The negative pressure pump 2 generates continuous suction through the trachea 3, suction tube 5, and suction tube 6. Under the action of negative pressure, the sputum flows through the suction tube 5 into the sputum collection cylinder 13 within the collection chamber 42. When encountering large or viscous sputum that the suction tube 6 cannot directly suction, the viscous sputum will block the entrance of the suction tube 6. At this time, the negative pressure... During the continued inhalation process, the pressure pump 2 overcomes the elastic force of the spring 11 and pulls the piston block 9 upward. The pressure regulating chamber provides a buffer for the continuous suction of the negative pressure pump 2. At the same time, medical staff can observe the changes in the pressure regulating chamber by the movement of the piston rod 10. They can quickly pull down the piston rod 10. The instantaneous negative pressure generated by pulling down the piston rod 10, combined with the continuous suction of the negative pressure pump 2, can smoothly remove large or viscous sputum. The entire sputum suction process is efficient, fast, and highly portable, and can play a key role in various emergency scenarios. Example

[0026] Based on Embodiment 1, an ultraviolet disinfection lamp ring 20 is installed around the entrance of the sealing joint 15 at the top of the collection chamber 42. In this way, during the suctioning process, the inhaled sputum will be irradiated by the ultraviolet disinfection lamp ring 20, which will play a preliminary disinfection role, reduce the bacterial content in the sputum, and then enter the sputum collection tube 13 in the collection chamber 42. Example

[0027] The outer surface of the suction tube 6 is uniformly provided with anti-slip textures so that the operator can hold the suction tube 6 firmly in an emergency, improving the stability and safety of the operation. At the same time, an anti-bite plug 7 is fixedly fitted on the suction tube 5 near the suction tube 6. The anti-bite plug 7 is provided with an occlusal part 8. When the patient's throat is being suctioned, the patient's mouth holds the anti-bite plug 7, and the teeth bite into the occlusal part 8. The material of the occlusal part 8 is flexible to prevent the patient from involuntarily biting the suction tube 6 or trachea 3 during use, ensuring the smooth progress of the suctioning process.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the present utility model. Any modifications, equivalent substitutions and improvements 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 portable electric suction device, comprising a handle (1), a negative pressure pump (2), a trachea (3), and a suction tube (5), wherein the negative pressure pump (2) is installed inside the handle (1), and a switch (16) for controlling the negative pressure pump (2) is provided on the handle (1), and the output end of the negative pressure pump (2) is connected to the trachea (3), characterized in that: It also includes an intermediate cylinder (4), which has a partition in the center. The partition divides the intermediate cylinder (4) into two chambers, namely an auxiliary chamber (41) and a collection chamber (42). The tops of the auxiliary chamber (41) and the collection chamber (42) are connected. The tail end of the trachea (3) is connected to the auxiliary chamber (41), and the front end of the suction tube (5) is connected to the collection chamber (42). A suction tube (6) is provided at the tail end of the suction tube (5). A sputum collection tube (13) is placed in the collection chamber (42). A piston block (9) is fitted in the auxiliary chamber (41). A piston rod (10) is vertically fixed below the piston block (9). The piston rod (10) passes through the bottom of the intermediate cylinder (4). A spring (11) is fitted on the piston rod (10). The piston block (9) is connected to the auxiliary chamber (41) through the spring (11). The space above the piston block (9) and the auxiliary chamber (41) forms a pressure regulating chamber.

2. The portable electric suction device according to claim 1, characterized in that: The intermediate cylinder (4) has a connecting section extending below the collection chamber (42), and the connecting section has an internal thread. The lower outer wall of the sputum collection cylinder (13) has an external thread that matches the internal thread, and the sputum collection cylinder (13) is threadedly installed in the collection chamber (42).

3. A portable electric suction device according to claim 1, characterized in that: A through groove is provided on the top of the partition between the auxiliary chamber (41) and the collection chamber (42), and a filter screen (19) is installed in the through groove.

4. A portable electric suction device according to claim 1, characterized in that: The suction tube (5) is fixedly fitted with an anti-bite plug (7) near the suction tube (6), and the anti-bite plug (7) is provided with a biting part (8).

5. A portable electric suction device according to claim 1, characterized in that: The end of the trachea (3) is provided with a filter (17), and the top of the collection chamber (42) is provided with an ultraviolet disinfection lamp ring (20) around the entrance of the collection chamber (42).

6. A portable electric suction device according to claim 2, characterized in that: A sealing gasket (14) is provided on the bottom flange of the sputum collection tube (13) to seal the sputum collection tube (13) inside the collection chamber (42).

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