Splash-resistant saliva collector

Abstract

The application relates to the technical field of saliva collection, in particular to a saliva collector capable of preventing splashing, which comprises an outer pipe body and a contact cover installed above the outer pipe body, a sealing block is fixed to the upper inner side wall of the outer pipe body, a mouth tube is fixedly penetrated in the middle inner part of the sealing block, a self-locking sealing assembly is installed in the mouth tube, a piston assembly is connected to the lower inner part of the outer pipe body, and a flow guide cover is fixedly penetrated in the middle inner part of the piston assembly. The saliva collector capable of preventing splashing can avoid saliva splashing on the skin around the lips by spitting saliva into the mouth tube, thus avoiding the need for finding a paper towel to wipe the facial skin in the later stage, and avoiding the reduction of the collection amount of saliva samples due to splashing, so that the saliva collector can well collect the body sample saliva, facilitating the diagnosis of diseases through saliva analysis in the later stage, and thus the saliva collector can be well used in the biomedical engineering industry field.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of saliva collection, in particular to a saliva collector capable of preventing splashing. BACKGROUND

[0002] Saliva samples contain multiple biomarkers such as DNA, RNA, proteins and small molecule metabolites, which can help determine the risk and diagnosis of diseases, evaluate and predict the progress of diseases and treatment, and have important significance for disease intervention and treatment. Therefore, saliva samples have wide application prospects in the field of biomedical engineering. Saliva samples need to be collected using a saliva collector during collection. The saliva collector not only collects saliva samples, but also guarantees the stability and preservation of the samples, thereby making the analysis and research of saliva samples more reliable. Therefore, the saliva collector has an important position and application potential in the biomedical engineering industry.

[0003] For example, the patent with the patent name "saliva collector convenient to extract" and the publication number "CN116509457B" disclosed in the prior art discloses that after collecting saliva, the top of the funnel can be well sealed, and the connection is stable and has good sealing performance, so that the sample will not overflow due to falling off. The extraction assembly is provided with an anti-residue extraction assembly, which can fully discharge the saliva when extracting the saliva sample, preventing a large amount of residue from being generated. The sealing cover assembly is provided with a convenient docking sealing cover assembly, the bottom joint can be removed, the bottom of the collection tube is opened, and the device is convenient to clean. After the saliva sample is collected, the bottom disc is embedded in the funnel, the upper torsion column is inserted into the side groove by rotating the upper torsion column, the movable block is pushed, the inner air bag is compressed, the gas in the inner air bag enters the sealed air bag, the volume of the sealed air bag expands and is embedded in the sealing groove, the connection is more stable, the gap of the connection is blocked, and the sealing performance is greatly improved. The patent with the patent name "saliva collector capable of preventing splashing" and the publication number "CN209966431U" disclosed in the prior art discloses that the top end of the collection tube is connected with the output end of the funnel, the inner surface of the output end of the funnel is provided with internal threads, the outer surface of the top end of the collection tube is provided with corresponding external threads, a rubber ring is arranged at the bottom of the external threads of the collection tube, the front surface of the top end of the funnel is a mouthpiece surface, the mouthpiece surface is a downward curved arc-shaped edge, the back surface of the funnel is provided with an upward protruding air pipe, the mouthpiece surface is designed according to the shape of the human lip, and when in use, the arc-shaped edge is close to the lip, so that when saliva is spit into the funnel, splashing of the saliva to the outside of the funnel is avoided, thereby preventing environmental pollution. The rubber ring is fixedly sleeved on the collection tube, and the rubber ring is used to seal the connection between the collection tube and the output end of the funnel. When the collection tube and the funnel are threadedly connected, the quality defects of the collection tube or the funnel are prevented, so that saliva does not flow out of the gap between the two, thereby preventing environmental pollution.

[0004] The existing saliva collectors described above involve placing the curved edge of the funnel close to the lips and then spitting saliva into the funnel. While this avoids saliva splashing onto the outside of the funnel and causing environmental pollution, some saliva splashes onto the skin around the user's lips inside the funnel. This not only requires wiping the face with tissues later but also reduces the amount of saliva collected, thus affecting subsequent biomedical diagnostic work. Therefore, we propose a splash-proof saliva collector to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a splash-proof saliva collector to solve the problem mentioned in the background art. Currently available saliva collectors on the market require the user to place the curved edge of the funnel close to their lips and then spit saliva into the funnel. While this avoids saliva splashing onto the outside of the funnel and causing environmental pollution, the aforementioned structure causes some saliva to splash onto the skin around the user's lips inside the funnel. This not only necessitates wiping the face with tissues later but also reduces the amount of saliva collected, thus affecting subsequent biomedical diagnostic procedures.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a splash-proof saliva collector, comprising an outer tube and a contact cover mounted thereon, a sealing block fixed to the upper inner wall of the outer tube, and an oral tube fixedly inserted through the middle of the sealing block, and a self-locking sealing assembly installed inside the oral tube, a piston assembly fitted to the lower inner part of the outer tube, and a flow guide shroud inserted through the middle of the piston assembly, the bottom of the flow guide shroud being connected to the upper end of the flow guide tube, and the lower end of the flow guide tube being slidably and sealingly connected to the bottom surface of the outer tube, while the lower end of the flow guide tube being threadedly connected to a liquid storage tube, and a gas guiding control assembly installed on the outer side of the outer tube.

[0007] Preferably, the self-locking sealing assembly includes a self-locking cover installed inside the inlet tube, and the self-locking cover is funnel-shaped. A drop opening is provided inside the bottom surface of the self-locking cover, and a moving rod is provided through the drop opening. A self-locking block is fixed at the upper end of the moving rod, and the lower part of the self-locking block is in concave-convex fit with the interior of the drop opening.

[0008] Preferably, the upper part of the self-locking block is conical, and the lower part of the self-locking block is frustum-shaped, and the self-locking block forms a lifting structure through a moving rod.

[0009] Preferably, the lower end of the moving rod is arranged in an inverted "T" shape, and the lower end of the moving rod is connected to the inner side wall of the guide shroud, and the moving rod and the guide shroud move up and down synchronously.

[0010] Preferably, the flow guide cover is located below the mouth tube, and the maximum diameter of the flow guide cover is smaller than the diameter of the piston assembly.

[0011] Preferably, the air guide control assembly comprises a gas storage bag assembly mounted on the outer side above the outer tube body, and the gas storage bag assembly is arranged in a circular ring shape, and two "L" shaped delivery pipes are symmetrically mounted below the gas storage bag assembly, and the lower ends of the delivery pipes are inserted into the inner part of the outer tube body, and the lower ends of the delivery pipes are located below the piston assembly.

[0012] Preferably, the lower part of the piston assembly is connected to the lower part of the inner part of the outer tube body through a reset spring, and the lower part of the outer tube body is provided with a support frame with an open bottom surface, and a plurality of through grooves for air circulation are formed at equal intervals on the outer side of the support frame, and the lowest point of the support frame is lower than the lowest point of the liquid storage tube located therein.

[0013] Preferably, the lower part of the mouth tube is connected to the auxiliary tube through a connecting hose, and a circular ring shaped control disc is fixed to the outer side of the lower part of the auxiliary tube, and two manual telescopic rods are symmetrically mounted on the upper surface of the control disc, and the two manual telescopic rods are respectively located on the left and right sides of the auxiliary tube, and a connecting spring is nested and connected to the outer side of the upper part of the manual telescopic rod.

[0014] Preferably, the upper surface of the flow guide cover is symmetrically provided with two vertical rods, and a control disc is arranged above the vertical rods, and there is a distance between the vertical rods and the control disc.

[0015] Preferably, the outer diameter of the control disc is smaller than the outer diameter of the sealing block.

[0016] Compared with the prior art, the saliva collector for preventing splashing has the advantages that saliva is spit into the mouth tube, so as to avoid saliva splashing on the skin around the lips, and the collection amount of the saliva sample is reduced due to splashing, and the specific contents are as follows:

[0017] (1) By closely attaching the outer side of the contact cover to the skin around the lips, and then inserting the mouth tube into the mouth, saliva is spit into the mouth tube, so as to avoid saliva splashing on the skin around the lips, and there is no need to find a paper towel to wipe the face skin in the later period, and the saliva sample collection amount is reduced due to splashing, so that the saliva collector can well collect the body sample saliva, so as to facilitate the diagnosis of diseases through saliva analysis in the later period, thereby making the saliva collector well used in the biomedical engineering industry field.

[0018] (2) When the pressure on the gas storage bag assembly is stopped, the piston assembly, the flow guide and the flow guide tube can be automatically moved downward and reset by the storage force of the reset spring. Therefore, the piston assembly can generate a certain suction force in the area below the mouth tube, which can increase the falling speed of saliva in the mouth tube and thus improve the collection efficiency of the entire saliva collector.

[0019] (3) The guide cover can drive the moving rod and the self-locking block to descend and reset together, so that the self-locking block and the self-locking cover are in a concave-convex fit, which makes it easy for the bottom of the self-locking block to seal the falling port, and then automatically lock the inside of the mouth tube to prevent the saliva collected from evaporating or being contaminated.

[0020] (4) Furthermore, the upward-moving vertical rod pushes the control plate and the auxiliary tube to move upward together, thus squeezing the connecting hose and the connecting spring. When the vertical rod separates from the control plate later, the control plate and the auxiliary tube can automatically swing up and down for a period of time through the stored force of the connecting spring, thereby further increasing the falling speed of saliva in the auxiliary tube and further improving the collection efficiency of the entire saliva collector. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the outer tube of the present invention;

[0022] Figure 2 This is a bottom view of the outer tube structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the main cross-sectional structure of the outer tube of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the orifice tube of the present invention;

[0025] Figure 5 This is a schematic diagram of the oral tube structure from below according to the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the air guide shield after it has risen according to the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0028] Figure 8 This is a bottom view of the structure of the present invention, showing the separation of the flow guide tube and the liquid storage tube;

[0029] Figure 9 This is a schematic diagram of the internal structure of the outer tube in Embodiment 2 of the present invention;

[0030] Figure 10 This is a schematic diagram of the three-dimensional structure of the flow guide in Embodiment 2 of the present invention.

[0031] Figure: 1, outer tube body; 2, contact cover; 3, mouth tube; 31, connecting hose; 32, auxiliary tube; 33, regulating disc; 34, manual telescopic rod; 35, connecting spring; 4, support frame; 41, through slot; 5, sealing block; 6, piston assembly; 7, flow guide cover; 71, vertical rod; 8, flow guide tube; 9, liquid storage tube; 10, gas storage air bag assembly; 11, delivery tube; 12, moving rod; 13, self-locking block; 14, self-locking cover; 141, falling port; 15, return spring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0033] Please refer to Figures 1-10 The present application provides the following technical solutions:

[0034] Embodiment one: The saliva collector of the present application can not only avoid saliva splashing outside the contact cover 2, but also avoid saliva splashing on the skin around the user's lips during the saliva collection process, thus avoiding the situation that the amount of saliva sample collected is reduced due to splashing. The specific structure is referred to the accompanying drawings. Figures 1-8As shown, including the outer tube body 1 and installed on its contact cover 2, the upper inside wall of the outer tube body 1 is fixed with sealing block 5, and the middle inside of the sealing block 5 is fixed with the mouth tube 3, and the inside of the mouth tube 3 is installed with self-locking sealing assembly, the lower inside of the outer tube body 1 is connected with piston assembly 6, and the middle inside of the piston assembly 6 is installed with flow guide cover 7, and the bottom of the flow guide cover 7 is connected with the upper end of the flow guide pipe 8, and the lower end of the flow guide pipe 8 is connected with the inside of the bottom surface of the outer tube body 1 through sealing sliding connection, and the lower end of the flow guide pipe 8 is screwed with the liquid storage pipe 9, and the outer side of the outer tube body 1 is installed with air guide control assembly, the self-locking sealing assembly includes a self-locking cover 14 installed inside the mouth tube 3, and the self-locking cover 14 is funnel-shaped, and the bottom surface of the self-locking cover 14 is provided with a falling port 141, and the inside of the falling port 141 is provided with a moving rod 12, and the upper end of the moving rod 12 is fixed with a self-locking block 13, and the lower side of the self-locking block 13 is matched with the inside of the falling port 141, the upper side of the self-locking block 13 is conical, and the lower side of the self-locking block 13 is circular, and the self-locking block 13 forms a lifting structure through the moving rod 12, the lower end of the moving rod 12 is inverted "T" shape, and the lower end of the moving rod 12 is connected with the inner side wall of the flow guide cover 7, the moving rod 12 and the flow guide cover 7 are synchronous lifting, the flow guide cover 7 is located below the mouth tube 3, and the maximum diameter of the flow guide cover 7 is less than the diameter of the piston assembly 6, the air guide control assembly includes a gas storage air bag assembly 10 installed on the upper side of the outer tube body 1, and the gas storage air bag assembly 10 is circular, and the lower side of the gas storage air bag assembly 10 is symmetrically installed with two "L" shaped conveying pipes 11, and the lower end of the conveying pipe 11 is inserted into the inside of the outer tube body 1, and the lower end of the conveying pipe 11 is located below the piston assembly 6, the lower side of the piston assembly 6 is connected with the lower inside of the outer tube body 1 through the reset spring 15, the lower side of the outer tube body 1 is installed with the support frame 4 with open bottom, and the outer side of the support frame 4 is provided with a through slot 41 for air circulation at equal intervals, and the lowest point of the support frame 4 is lower than the lowest point of the liquid storage pipe 9 located therein.

[0035] First, the user holds the outer tube body 1 and the gas storage bag assembly 10 with his hand, at this time the gas in the gas storage bag assembly 10 enters the outer tube body 1 below the piston assembly 6 through the delivery pipe 11, so that the piston assembly 6 drives the flow guide pipe 8 and the flow guide cover 7 to automatically move upward to a certain position, at this time the return spring 15 is stretched and stored, because the outer side of the flow guide pipe 8 is sealed and slidingly connected with the bottom surface of the outer tube body 1 through the rubber sealing gasket, so it will not cause the gas to leak through the bottom surface of the outer tube body 1, the flow guide cover 7 drives the moving rod 12 and the self-locking block 13 to move upward together, so that the self-locking block 13 is separated from the self-locking cover 14, then the saliva collector is close to the user's face, the outer side of the contact cover 2 is close to the skin around the user's lips, the user gathers the saliva inside the mouth together by the tongue, then inserts the mouth tube 3 into the user's mouth, then the user spits saliva into the mouth tube 3, the saliva enters the mouth tube 3, the saliva continues to flow downward through the drop opening 141 in the bottom surface of the self-locking cover 14, then the saliva in the mouth tube 3 falls into the flow guide cover 7 and the flow guide pipe 8 below, finally the saliva falls into the liquid storage pipe 9 for collection and storage, then the user holds the outer tube body 1 below the outer side, so that the hand is separated from the gas storage bag assembly 10, at this time the stored return spring 15 automatically drives the piston assembly 6, the flow guide cover 7 and the flow guide pipe 8 to move downward to reset, so that the piston assembly 6 generates a certain suction force on the area above the outer tube body 1, so that the saliva in the mouth tube 3 can quickly flow downward, thereby improving the falling speed of the saliva in the mouth tube 3, thus improving the collection efficiency of the entire saliva collector.

[0036] When the flow guide cover 7 moves downward to reset, it drives the moving rod 12 and the self-locking block 13 to move downward to reset, so that the lower side of the self-locking block 13 tightly fits the inner side wall of the self-locking cover 14, then the drop opening 141 in the bottom surface of the self-locking cover 14 is sealed and plugged by the lower side of the self-locking block 13, so it can automatically lock and close the inside of the mouth tube 3, avoiding foreign matter and dust entering the saliva collector through the mouth tube 3 in the later stage, thus avoiding evaporation or contamination of the collected saliva, the through slot 41 is provided to facilitate the flow of air around the outside of the liquid storage pipe 9, thus facilitating good temperature regulation of the saliva in the liquid storage pipe 9, so that the saliva in the liquid storage pipe 9 can be well placed, avoiding affecting the later detection operation, when the saliva needs to be analyzed for diagnosis of diseases in the later stage, the hand can be taken from the bottom of the support frame 4 to take the liquid storage pipe 9, then rotate the liquid storage pipe 9 to separate the threaded connection between the liquid storage pipe 9 and the flow guide pipe 8, so the saliva in the liquid storage pipe 9 can be poured out for detection and analysis, thus the saliva collector can well collect saliva, and the saliva collector can be well used in the biomedical engineering industry.

[0037] Embodiment two: the anti-splashing saliva collector in this embodiment can further improve the falling speed of saliva in the mouth tube 3, and can further improve the collection efficiency of the whole saliva collector, and the specific structure is referred to the accompanying drawings Figures 9-10 As shown, the lower part of the mouth tube 3 is connected with the auxiliary tube 32 through the connecting hose 31, the outer side of the lower part of the auxiliary tube 32 is fixed with the annular control disc 33, the upper surface of the control disc 33 is symmetrically installed with two manual telescopic rods 34, the two manual telescopic rods 34 are respectively located on the left and right sides of the auxiliary tube 32, the upper outer side of the manual telescopic rod 34 is nested with the connecting spring 35, the upper surface of the flow guide cover 7 is symmetrically installed with two vertical rods 71, the upper part of the vertical rod 71 is provided with the control disc 33, and there is a gap between the vertical rod 71 and the control disc 33, and the outer diameter of the control disc 33 is smaller than the outer diameter of the sealing block 5.

[0038] When the piston assembly 6 drives the flow guide tube 8 and the flow guide cover 7 to automatically move upward to a certain position, the vertical rod 71 above the flow guide cover 7 pushes the control disc 33 and the auxiliary tube 32 upward at this time, and the connecting hose 31, the manual telescopic rod 34 and the connecting spring 35 are squeezed and contracted at this time, when the flow guide cover 7 moves downward to reset later, the vertical rod 71 and the control disc 33 are separated at this time, and there is a gap between the vertical rod 71 and the control disc 33, so that the control disc 33 and the auxiliary tube 32 are automatically driven by the force storage of the connecting spring 35 to shake up and down for a period of time, and the control disc 33 and the auxiliary tube 32 remain fixed after a period of time, so that the control disc 33 and the auxiliary tube 32 shake up and down for a period of time, which can further improve the falling speed of saliva in the mouth tube 3, the connecting hose 31 and the auxiliary tube 32, and can further improve the collection efficiency of the whole saliva collector, thereby completing a series of work.

[0039] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A splash-proof saliva collector, comprising an outer tube (1) and a contact cover (2) mounted thereon, characterized in that: A sealing block (5) is fixed to the upper inner wall of the outer tube (1), and a mouth-holding tube (3) is fixed through the middle of the sealing block (5). A self-locking sealing assembly is installed inside the mouth-holding tube (3). A piston assembly (6) is attached to the lower inner wall of the outer tube (1), and a flow guide (7) is installed through the middle of the piston assembly (6). The bottom of the flow guide (7) is connected to the upper end of the flow guide (8), and the lower end of the flow guide (8) is connected to the bottom surface of the outer tube (1). The sealing sliding connection is provided, and the lower end of the guide tube (8) is threadedly connected to the liquid storage tube (9). A gas guiding control assembly is installed on the outside of the outer tube body (1). The self-locking sealing assembly includes a self-locking cover (14) installed inside the mouth-holding tube (3). The self-locking cover (14) is funnel-shaped, and a drop opening (141) is opened inside the bottom surface of the self-locking cover (14). A moving rod (12) is installed through the inside of the drop opening (141), and a self-locking block (13) is fixed at the upper end of the moving rod (12). Furthermore, the lower part of the self-locking block (13) is in concave-convex fit with the interior of the drop opening (141). The upper part of the self-locking block (13) is conical, and the lower part of the self-locking block (13) is frustoconical. The self-locking block (13) forms a lifting structure through the moving rod (12). The lower end of the moving rod (12) is set in an inverted "T" shape, and the lower end of the moving rod (12) is connected to the inner wall of the guide shield (7). The moving rod (12) and the guide shield (7) rise and fall synchronously. The guide shield (7) is located in the mouthpiece tube (3). Below, and the maximum diameter of the flow guide (7) is smaller than the diameter of the piston assembly (6), the air guide control assembly includes an air storage bag assembly (10) installed on the outer side of the outer tube body (1), and the air storage bag assembly (10) is arranged in a ring shape, and two "L" shaped delivery pipes (11) are symmetrically installed below the air storage bag assembly (10), and the lower end of the delivery pipe (11) is inserted into the interior of the outer tube body (1), and the lower end of the delivery pipe (11) is located below the piston assembly (6).

2. The anti-splash saliva collector according to claim 1, characterized in that: The piston assembly (6) is connected to the lower interior of the outer tube (1) via a reset spring (15). A support frame (4) with an open bottom surface is installed on the lower part of the outer tube (1). The outer side of the support frame (4) is provided with equally spaced through slots (41) for air circulation. The lowest point of the support frame (4) is lower than the lowest point of the liquid storage tube (9) located inside it.

3. The anti-splash saliva collector according to claim 1, characterized in that: The lower part of the mouthpiece (3) is connected to the auxiliary tube (32) via a connecting hose (31), and a circular control disc (33) is fixed on the lower outer side of the auxiliary tube (32). Two manual telescopic rods (34) are symmetrically installed on the upper surface of the control disc (33), and the two manual telescopic rods (34) are located on the left and right sides of the auxiliary tube (32) respectively. A connecting spring (35) is nested on the upper outer side of the manual telescopic rods (34).

4. A splash-proof saliva collector according to claim 3, characterized in that: Two vertical rods (71) are symmetrically installed on the upper surface of the flow guide (7), and an adjustment disk (33) is provided above the vertical rods (71), and there is a gap between the vertical rods (71) and the adjustment disk (33).

5. A splash-proof saliva collector according to claim 3, characterized in that: The outer diameter of the control plate (33) is smaller than the outer diameter of the sealing block (5).

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