Anti-clogging saliva suction tube

Abstract

The present invention relates to the field of medical auxiliary equipment, and specifically discloses an anti-blocking saliva suction tube; it comprises a main pipeline and a filter screen, the filter screen is arranged in the main pipeline, and also comprises a liquid adding unit, the liquid adding unit comprises a liquid storage bottle and a liquid adding tube, the liquid storage bottle is provided with a closable opening, one end of the liquid adding tube is connected to the liquid storage bottle, and the other end is connected to the main pipeline, and the position where the liquid adding tube is connected to the main pipeline is located on the side of the filter screen close to the opening of the main pipeline. The anti-blocking saliva suction tube in the present invention solves the problem that the saliva suction tube is easily blocked by blood clots.

Description

Technical Field

[0001] The invention relates to the field of medical auxiliary equipment, and in particular to an anti-blocking saliva suction tube. Background Art

[0002] In order to prevent saliva and blood from covering the wound and causing the patient to choke, a saliva suction tube is needed to promptly drain the saliva and blood from the patient's mouth during oral treatment. However, when performing dental treatment, it often involves grinding and drilling of teeth. The fallen tooth debris can easily enter the saliva suction tube or the dental chair drainage pipe connected to the saliva suction tube, causing the saliva suction tube and the pipes in the dental chair to be blocked, making it impossible to drain the saliva and blood in time, and the dental chair maintenance cost is high.

[0003] Although there is a kind of anti-blocking saliva suction tube disclosed in patent number CN206603833U, by setting a filter net in the saliva suction tube to filter the solid hard objects in the saliva, it is prevented that the hard objects are stuck in the saliva suction tube or the pipe in the dental chair. However, it is found that the position of the filter net is still easily blocked during actual use: when performing oral treatment, it is often accompanied by bleeding, and blood entering the saliva suction tube is very easy to adhere to the filter net, causing the filter net to be blocked. Secondly, during the use of the saliva suction tube, blood residue will also appear in the saliva suction tube. After standing for a period of time, the blood remaining in the saliva suction tube will coagulate into blood clots and adhere to the inner wall of the saliva suction tube. At this time, if the saliva suction tube is used again, the blood will continue to adhere to the blood clot and coagulate again, resulting in an increase in the volume of the blood clot. When the treatment time is long and the saliva suction tube is used repeatedly, large pieces of blood clots will block the saliva suction tube and make the saliva suction tube unusable. Summary of the invention

[0004] The present invention is intended to provide a saliva suction tube that is anti-clogging, so as to solve the problem that the saliva suction tube is easily blocked by blood clots.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a saliva suction tube with anti-blocking, comprising a main pipeline and a filter screen, the filter screen is arranged in the main pipeline, and also comprises a liquid adding unit, the liquid adding unit comprises a liquid storage bottle and a liquid adding tube, the liquid storage bottle is provided with a closable opening, one end of the liquid adding tube is connected to the liquid storage bottle, and the other end is connected to the main pipeline, and the position where the liquid adding tube is connected to the main pipeline is located on the side of the filter screen close to the opening of the main pipeline.

[0006] The beneficial effects of this program are:

[0007] The filter in this solution is used to filter hard objects, so as to prevent hard objects from entering the saliva suction tube or the pipe in the dental chair, which will block the pipe and make it difficult to clean. In addition, when using this solution, a drug that can prevent blood coagulation is added to the liquid storage bottle. Under the effect of maintaining the negative pressure in the main pipe, the liquid adding pipe is connected to the main pipe, and the liquid in the liquid storage bottle can be sucked into the main pipe through the liquid adding pipe and flows along the main pipe, flushing the inner wall of the main pipe, preventing the blood in the main pipe from coagulating, thereby preventing the formation of blood clots, and effectively preventing blood clots from blocking the main pipe.

[0008] At present, in order to prevent the pipeline from being blocked, it is usually solved by flushing the pipeline after use or directly replacing the pipeline after the pipeline is blocked. However, flushing and replacing the pipeline after use takes time and is inconvenient to operate during the treatment process. In this solution, the liquid adding tube can be directly opened to add liquid into the main pipeline using the negative pressure in the saliva suction tube, which is simple to operate. The added liquid will dilute the blood, and even if a small amount of blood is left in the saliva suction tube after dilution, it is not easy to form a blood clot.

[0009] Furthermore, the liquid adding unit comprises a Bernoulli pipe, a throat of the Bernoulli pipe is connected to the liquid storage bottle, and an outlet section is connected to the liquid adding pipe.

[0010] The beneficial effect of this solution is that when negative pressure is formed in the main pipe, the drug can be automatically sucked into the main pipe and mixed with the blood in the main pipe through the Bernoulli pipe, without the need to manually turn on the switch, further simplifying the operation and facilitating use during treatment.

[0011] Furthermore, a dispersion pipe is radially distributed in the main pipe, the dispersion pipe is located on the side of the filter screen close to the end of the main pipe, and the dispersion pipe is connected to the liquid adding pipe, and a plurality of through holes are arranged on the side wall of the dispersion pipe.

[0012] The beneficial effects of this solution are as follows: the dispersion tube is arranged transversely in the main pipeline, the contact surface between the blood entering the main pipeline and the dispersion tube is larger, and the drug can be more fully mixed with the blood after entering the main pipeline through the dispersion tube, thereby avoiding blood coagulation.

[0013] Furthermore, a flow rate regulator is provided on the liquid adding pipe.

[0014] The beneficial effect of this solution is that the speed at which the drug enters through the liquid adding tube can be simply and quickly adjusted by the flow rate regulator.

[0015] Furthermore, the dispersion pipe is cross-shaped.

[0016] The beneficial effect of this solution is that the dispersion tube in this solution can more fully contact the blood entering the main pipeline, further promoting full mixing of the drug and the blood.

[0017] Furthermore, the main pipe comprises a connected necking portion and an expanding portion, the diameter of the necking portion is smaller than the diameter of the expanding portion, and the expanding portion is located between the end of the main pipe and the necking portion.

[0018] The beneficial effect of this solution is that a step is formed between the expanded portion and the narrowed portion, and when not in use, the saliva suction tube can be loaded into the card slot with the end facing upward, thereby preventing the saliva and blood remaining in the main pipe from dripping from the end of the main pipe.

[0019] Furthermore, a piston block is provided in the main pipe, which is located on the side of the filter away from the end of the main pipe, and the piston block can resist the filter; the piston block is connected to an elastic band, and the end of the elastic band away from the piston block passes through the filter and is fixed to the main pipe.

[0020] The beneficial effect of this solution is that when there are a lot of solid hard objects such as tooth debris, the filter screen is also at risk of being blocked. After the negative pressure in the saliva suction tube in this solution disappears, the piston block slides to the side close to the filter screen under the action of the elastic band and collides with the filter screen, which can cause the hard objects at the filter screen to fall out and reduce the risk of filter screen blockage.

[0021] Furthermore, a closable drug adding port is provided on the liquid storage bottle, and the diameter of the piston block at one end close to the filter screen is smaller than the diameter of the filter screen.

[0022] The beneficial effects of this solution are as follows: when a patient has a large amount of bleeding during treatment of a large wound such as tooth extraction, it is difficult to dilute the blood to a level that does not easily form blood clots by simply adding liquid to the main pipeline when the blood is sucked into the main pipeline. In this solution, a drug that can prevent blood coagulation can be added to the drug storage bottle through the drug addition port, and mixed with the sucked blood as the liquid enters the main pipeline, so that the blood entering the rear of the main pipeline and the dental chair will not coagulate, further avoiding pipeline blockage. Part of the drug adheres to the inner wall of the main pipeline and the pipeline inside the dental chair, and continues to prevent the blood entering the main pipeline from forming blood clots and blocking the pipeline when it is not used and when it is used again.

[0023] Furthermore, an elastic protrusion is fixed on the side wall of the piston block facing the filter screen.

[0024] The beneficial effect of this solution is that when the piston block collides with the filter screen, the elastic protrusion can undergo elastic deformation, thereby pushing out hard objects stuck in the filter holes of the filter screen, further avoiding clogging of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a stereogram of embodiment 1 of the present invention;

[0026] Figure 2 for Figure 1 A partial cross-sectional view of

[0027] Figure 3 for Figure 1 A three-dimensional diagram of the dispersion tube;

[0028] Figure 4 A partial cross-sectional view of Embodiment 2 of the present invention;

[0029] Figure 5 for Figure 4 A three-dimensional view of the middle filter and piston. DETAILED DESCRIPTION

[0030] The following is further described in detail through specific implementation methods:

[0031] The reference numerals in the drawings of the specification include: a mouth portion 1 , an expanding mouth portion 2 , a shrinking mouth portion 3 , a dispersion pipe 4 , a through hole 41 , a filter screen 5 , a piston block 6 , a sliding rod 61 , and an elastic band 62 .

[0032] Example 1

[0033] The embodiment is basically as follows Figure 1 , Figure 2 and Figure 3 As shown, a saliva suction tube with anti-clogging includes a main pipe, a filter screen 5 and a liquid adding unit. The main pipe includes a mouth 1, a flared portion 2 and a narrowed portion 3 which are arranged from left to right in sequence. The mouth 1, the flared portion 2 and the narrowed portion 3 are integrally formed. The outer diameter of the right end of the flared portion 2 is smaller than that of the left end. Specifically, the flared portion 2 in this embodiment is a truncated cone with an outer diameter of the left end smaller than that of the right end. A step is formed between the flared portion 2 and the narrowed portion 3. When not in use, the main pipe can be inserted into a U-shaped pipe fixture with the mouth 1 facing upward. At this time, the presence of the step can improve the fixing effect of the main pipe.

[0034] The filter screen 5 is located in the flared portion 2 and is clamped with the left end of the flared portion 2 . The inner diameter of the left end of the flared portion 2 is larger than the inner diameter of the right end of the mouth portion 1 , so that the right end of the mouth portion 1 limits the filter screen 5 .

[0035] A cross-shaped dispersion tube 4 is provided in the mouth 1. The dispersion tube 4 is made of hard plastic and is clamped with the mouth 1. The side wall of the dispersion tube 4 is provided with a plurality of through holes 41. The liquid adding unit includes a liquid adding tube and a liquid storage bottle. One end of the liquid adding tube is connected to the dispersion tube 4, and the other end is connected to a needle. A flow rate regulator is sleeved on the liquid adding tube. Specifically, the liquid adding tube in this embodiment is made of medical plastic material, and the flow rate regulator has the same structure as the flow rate regulator for infusion on the infusion tube, which will not be described in detail in this embodiment. The liquid storage bottle is provided with a liquid inlet, and a rubber sealing plug is clamped in the liquid inlet.

[0036] The specific implementation process is as follows:

[0037] Before use, first store the solution in the liquid storage bottle. The solution in this embodiment is physiological saline. Then, the needle connected to the liquid adding tube is passed through the rubber sealing plug, and the liquid adding tube is connected to the liquid storage bottle. Then, the liquid storage bottle is turned over 180° so that the rubber sealing plug faces downward, and the liquid storage bottle is placed in the infusion net sleeve. At this time, the liquid storage bottle can be hung in the flipped state using the infusion bracket in the treatment room.

[0038] During treatment, the right end of the main pipe is connected to the negative pressure structure of the dental chair to form a negative pressure in the main pipe. At this time, the blood and saliva in the patient's mouth can be sucked through the left end of the main pipe. At this time, the filter 5 blocks the tooth debris generated during the treatment and entering with the saliva and blood. The flow rate regulator is manually opened, and the solution in the liquid storage bottle enters the dispersion tube 4 through the liquid adding tube and flows out from the through hole 41, mixing with the incoming blood to dilute the blood, thereby preventing the blood in the main pipe and the pipe of the dental chair from coagulating and forming blood clots.

[0039] When not in use, first turn off the flow rate regulator and then turn off the negative pressure structure of the dental chair to prevent the solution from overflowing from the left end of the saliva suction tube.

[0040] In actual implementation, the liquid adding unit may also include a Bernoulli pipe, the throat of the Bernoulli pipe is connected to a connecting pipe, and the connecting pipe is connected to the liquid storage bottle. At this time, the liquid adding pipe is only connected to the outlet section of the Bernoulli pipe, and a flow rate regulator is no longer provided, and there is no need to invert and hang the liquid storage bottle during use.

[0041] The main pipeline and the liquid adding tube in this embodiment are both disposable items. When the saliva suction tube is used, according to the Bernoulli principle, the solution in the liquid storage bottle is sucked into the main pipeline to dilute the blood. Because there is no need to adjust the flow rate regulator, it is more convenient to use.

[0042] Example 2

[0043] On the basis of Example 1, Figure 4 and Figure 5 As shown, in the embodiment, an L-shaped slide rod 61 is provided in the flared part 2 and a piston block 6 is slidably provided therein. The piston block 6 is opposite to the filter screen 5. An elastic protrusion is fixed to the left end of the piston block 6. The piston block 6 and the elastic protrusion in the embodiment are both made of medical elastic rubber. One end of the L-shaped slide rod is fixed to the inner wall of the flared part 2, and the other end passes through the piston block 6 and is in clearance fit with the piston block 6 to guide the sliding of the piston block 6. An elastic band 62 is fixed to the left end of the piston block 6. The elastic band 62 passes through the filter screen 5 and is sleeved on the dispersion tube 4.

[0044] When the saliva suction tube in the present solution is used, under the action of the negative pressure structure of the dental chair, the piston block 6 slides to the right, and a gap is formed between the piston block 6 and the filter 5 for saliva and blood to pass through. When the saliva suction tube is used once, it is first taken out of the patient's mouth and then the negative pressure structure on the dental chair is closed. The piston block 6 is reset to the left under the action of the elastic band 62 and collides with the filter 5. At this time, the elastic protrusion pushes the hard object stuck in the filter hole to the left out of the filter hole of the filter 5 to prevent the filter 5 from being blocked.

[0045] Example 3

[0046] Based on Examples 1 and 2, this embodiment is different from Example 2 in that this embodiment is still provided with a flow rate regulator, and the liquid inlet of the liquid storage bottle is used as a drug adding port. When treating a large wound and a large amount of bleeding, a drug to prevent blood coagulation is first injected into the liquid storage bottle before use, and the flow rate regulator is turned on when the saliva suction is about to end, so that the solution of the drug to prevent blood coagulation mixed with oil is mixed with the blood sucked into the main pipeline through the dispersion tube 4, so as to prevent the blood from forming blood clots in the main pipeline and the pipeline in the dental chair.

[0047] After the saliva suction is completed, the left end of the main pipe is first taken out of the patient's mouth, the flow rate regulator is then turned off, and finally the negative pressure mechanism in the dental chair is turned off to reduce the liquid residue in the main pipe, and finally the main pipe is inserted into the pipe holder with the opening facing upward. Therefore, the solution entering the main pipe will only adhere to the side wall of the main pipe and the filter 5 to prevent the formation of blood clots and will not drip downward.

[0048] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A saliva suction tube with anti-clogging, comprising a main pipeline and a filter screen, wherein the filter screen is arranged in the main pipeline, characterized in that: It also includes a liquid adding unit, which includes a liquid storage bottle and a liquid adding tube. The liquid storage bottle is provided with a closable opening. One end of the liquid adding tube is connected to the liquid storage bottle, and the other end is connected to the main pipeline. The position where the liquid adding tube is connected to the main pipeline is located on the side of the filter screen close to the opening of the main pipeline.

2. The anti-blocking saliva suction tube according to claim 1, characterized in that: The liquid adding unit comprises a Bernoulli pipe, the throat of the Bernoulli pipe is connected with the liquid storage bottle, and the outlet section is connected with the liquid adding pipe.

3. The anti-blocking saliva suction tube according to claim 1, characterized in that: A dispersion pipe is radially distributed in the main pipeline, the dispersion pipe is located on the side of the filter screen close to the end of the main pipeline, and the dispersion pipe is connected with the liquid adding pipe. The side wall of the dispersion pipe is provided with a plurality of through holes.

4. The anti-blocking saliva suction tube according to claim 3, characterized in that: A flow rate regulator is provided on the liquid adding pipe.

5. The anti-blocking saliva suction tube according to claim 2, characterized in that: The dispersion tube is cross-shaped.

6. The anti-blocking saliva suction tube according to claim 2, characterized in that: The main pipe comprises a connected necking portion and an expanding portion, the diameter of the necking portion is smaller than the diameter of the expanding portion, and the expanding portion is located between the end of the main pipe and the necking portion.

7. The anti-clogging saliva suction tube according to claim 1, characterized in that: A piston block is provided in the main pipe, which is located on the side of the filter away from the end of the main pipe, and the piston block can resist the filter; the piston block is connected to an elastic band, and the end of the elastic band away from the piston block passes through the filter and is fixed to the main pipe.

8. The anti-clogging saliva suction tube according to claim 7, characterized in that: The liquid storage bottle is provided with a closable drug adding port, and the diameter of one end of the piston block close to the filter screen is smaller than the diameter of the filter screen.

9. The anti-blocking saliva suction tube according to claim 8, characterized in that: An elastic protrusion is fixed on the side wall of the piston block facing the filter screen.

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