Sputum collector
By designing a combination of filter and brush rod in the sputum collector, the problem of sputum and saliva mixing was solved, achieving effective separation and collection of sputum and improving the detection accuracy of sputum samples.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI REGULAR PRECISION MEDICAL TESTING CO LTD
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-28
AI Technical Summary
In existing sputum collection containers, sputum and saliva are mixed, causing non-pathogenic bacteria in the saliva to affect the growth of pathogenic bacteria and result interpretation, making it difficult to effectively separate and collect them.
A sputum collector was designed, comprising a sterile plastic bucket, a filter screen, an absorbent sponge, a brush rod, and an inoculation loop. The filter screen separates sputum and saliva, the brush rod agitates the sputum, and the absorbent sponge absorbs the saliva, thus achieving effective sputum collection.
It achieves effective separation of sputum and saliva, prevents saliva backflow, facilitates sputum collection, and improves the accuracy of sputum sample testing.
Smart Images

Figure CN224166328U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sputum collector technology, specifically a sputum collector. Background Technology
[0002] The sputum sample container is a cylindrical sterile plastic box. The patient spits the sample directly into the sputum box. Most of the tests performed involve bacterial culture and identification of the sputum, which requires technicians to pick out (using an inoculation loop) the viscous part of the sputum and spread it on a petri dish.
[0003] Currently, sputum collection containers typically contain a mixture of sputum and saliva. During vaccination, it is easy to collect a lot of saliva, which contains many non-pathogenic bacteria that coexist with humans. Their presence can affect the growth of pathogenic bacteria and the interpretation of results. Therefore, a sputum collection device is needed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a sputum collector that can separate saliva and sputum without causing saliva to flow back after separation. It also features a brush combined with an inoculation ring to facilitate the initial kneading of the separated sputum, breaking it down to a certain extent, thus making it easier to pick up the sputum with the inoculation ring.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sputum collector, comprising a sterile plastic bucket with open top and bottom, a bottom cover threadedly connected to the lower end of the outer wall of the sterile plastic bucket, an absorbent sponge located inside the sterile plastic bucket on the inner side wall of the bottom cover, a filter screen fixedly connected inside the sterile plastic bucket, a top cover threadedly connected to the upper end of the outer wall of the sterile plastic bucket, and two symmetrically distributed locking blocks fixedly connected to the upper end of the top cover, with a brush rod and an inoculation ring respectively locked inside the two locking blocks.
[0006] To facilitate dust prevention for the brush rod and inoculation ring at the top of the top cover, the preferred embodiment of the sputum collector of this utility model has an annular groove at the top of the top cover, and a dust cover is connected to the inside of the annular groove by an interference fit.
[0007] In order to facilitate the absorption of saliva by the absorbent sponge after separation, the size of the absorbent sponge in the preferred sputum collector of this utility model is adapted to the size of the sterile plastic bucket.
[0008] To increase the seal between the bottom cover and the sterile plastic bucket and prevent saliva leakage, the preferred embodiment of the sputum collector of this utility model has a sealing ring fixedly connected to the lower end of the sterile plastic bucket, and the sealing ring abuts against the bottom surface inside the bottom cover.
[0009] To facilitate medical staff in directly viewing sputum samples and visually observing the color of the sputum, the sterile plastic buckets used in this utility model's sputum collector are preferably transparent.
[0010] To facilitate the insertion and removal of the brush rod and inoculation ring into the corresponding locking blocks, both locking blocks are preferably made of rubber, as preferred embodiments of the sputum collector of this invention.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention uses a filter to easily separate sputum from saliva. Since the sputum is relatively viscous, it will remain at the top of the filter, while the saliva mixed with the sputum will fall to the bottom of the filter due to gravity. The water-absorbing sponge can absorb the separated saliva to prevent saliva from flowing back.
[0013] By removing the brush rod from the corresponding clip and stirring and kneading the sputum remaining on the upper part of the filter screen with the brush rod, it can be broken down to a certain extent, thus achieving the separation of saliva and sputum. After separation, the saliva will not flow back. Furthermore, by combining the brush with the inoculation ring, it is convenient to knead the separated sputum with the brush to break it down to a certain extent, thereby making it easy to pick up the sputum with the inoculation ring. Attached Figure Description
[0014] Fig. 1 This is an overall structural diagram of the present invention;
[0015] Fig. 2 This is a cross-sectional view of the overall structure of this utility model;
[0016] Fig. 3 This is a partial structural diagram of the present invention.
[0017] In the diagram: 1. Sterile plastic bucket; 2. Bottom cover; 3. Absorbent sponge; 4. Filter screen; 5. Top cover; 6. Dust cover; 7. Annular groove; 8. Locking block; 9. Inoculation loop; 10. Brush rod; 11. Sealing ring. Detailed Implementation
[0018] Please see Figs. 1 to 3 The sputum collector includes a sterile plastic bucket 1 with open top and bottom. A bottom cover 2 is threaded to the lower end of the outer wall of the sterile plastic bucket 1. An absorbent sponge 3 located inside the sterile plastic bucket 1 is provided on the inner side wall of the bottom cover 2. A filter screen 4 is fixedly connected inside the sterile plastic bucket 1. A top cover 5 is threaded to the upper end of the outer wall of the sterile plastic bucket 1. Two symmetrically distributed locking blocks 8 are fixedly connected to the upper end of the top cover 5. A brush rod 10 and an inoculation ring 9 are respectively locked inside the two locking blocks 8.
[0019] In this embodiment: When in use, the patient spits sputum into the sterile plastic bucket 1. At this time, because the sputum is relatively viscous, it will remain at the top of the filter 4, while the saliva mixed in the sputum will fall to the bottom of the filter 4 due to gravity, thereby achieving the purpose of separating sputum and saliva. The water-absorbing sponge 3 can absorb the separated saliva to prevent saliva from flowing back.
[0020] Next, remove the brush rod 10 from the corresponding clip 8 and use the brush rod 10 to stir and knead the sputum remaining on the upper end of the filter screen 4 to break it to a certain extent. Then, remove the inoculation ring 9 from the corresponding clip 8 to facilitate the collection of sputum samples.
[0021] As a technical optimization of this utility model, an annular groove 7 is provided at the upper end of the top cover 5, and a dust cover 6 is connected to the inside of the annular groove 7 by interference fit.
[0022] In this embodiment, the dust cover 6 can be used to easily prevent dust from entering the brush rod 10 and the inoculation ring 9 at the top of the top cover 5.
[0023] As a technical optimization of this utility model, the size of the absorbent sponge 3 is adapted to the size of the sterile plastic bucket 1.
[0024] In this embodiment, the size of the absorbent sponge 3 is adapted to the size of the sterile plastic bucket 1, which is beneficial for the absorbent sponge 3 to absorb the separated saliva.
[0025] As a technical optimization of this utility model, a sealing ring 11 is fixedly connected to the lower end of the aseptic plastic bucket 1, and the sealing ring 11 abuts against the bottom surface inside the bottom cover 2.
[0026] In this embodiment, the sealing ring 11 can increase the sealing between the bottom cover 2 and the sterile plastic bucket 1, preventing saliva leakage.
[0027] As a technical optimization of this utility model, the aseptic plastic bucket 1 is transparent.
[0028] In this embodiment, the sterile plastic bucket 1 has a transparent structure, which allows medical staff to directly see the sputum sample and thus observe the color of the sputum intuitively.
[0029] As a technical optimization of this utility model, both card blocks 8 are made of rubber.
[0030] In this embodiment, since both locking blocks 8 are made of rubber, they have a certain degree of elasticity, which makes it easy to insert the brush rod 10 and the inoculation ring 9 into the corresponding locking block 8, and also makes it easy to remove the brush rod 10 and the inoculation ring 9 from the locking block 8.
[0031] Working principle: When in use, the patient spits sputum into the sterile plastic bucket 1. At this time, because the sputum is relatively viscous, it will remain at the top of the filter 4, while the saliva mixed in the sputum will fall to the bottom of the filter 4 due to gravity, thereby achieving the purpose of separating sputum and saliva. The absorbent sponge 3 can absorb the separated saliva to prevent saliva from flowing back.
[0032] Next, remove the brush rod 10 from the corresponding clip 8 and use the brush rod 10 to stir and knead the sputum remaining on the upper end of the filter screen 4 to break it to a certain extent. Then, remove the inoculation ring 9 from the corresponding clip 8 to facilitate the collection of sputum samples.
[0033] The above are merely preferred embodiments of the present utility model and are not intended to 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 sputum collector, comprising a sterile plastic container (1) with open top and bottom ends, characterized in that: The lower end of the outer wall of the sterile plastic bucket (1) is threaded with a bottom cover (2), and the inner side wall of the bottom cover (2) is provided with an absorbent sponge (3) located inside the sterile plastic bucket (1). The inside of the sterile plastic bucket (1) is fixedly connected with a filter screen (4), and the upper end of the outer wall of the sterile plastic bucket (1) is threaded with a top cover (5). The top cover (5) is fixedly connected to two symmetrically distributed locking blocks (8), and the inside of the two locking blocks (8) respectively locks a brush rod (10) and an inoculation ring (9).
2. The sputum collector according to claim 1, characterized in that: The top cover (5) has an annular groove (7) at its upper end, and a dust cover (6) is connected inside the annular groove (7) by an interference fit.
3. The sputum collector according to claim 1, characterized in that: The size of the absorbent sponge (3) is adapted to the size of the sterile plastic bucket (1).
4. The sputum collector according to claim 1, characterized in that: The lower end of the sterile plastic bucket (1) is fixedly connected with a sealing ring (11), and the sealing ring (11) abuts against the bottom surface inside the bottom cover (2).
5. The sputum collector according to claim 1, characterized in that: The sterile plastic bucket (1) has a transparent structure.
6. The sputum collector according to claim 1, characterized in that: Both of the aforementioned card blocks (8) are made of rubber.