Simple negative pressure saliva aspirator

By designing a simple negative pressure saliva aspirator, which combines a transparent polyethylene drainage bag and a PVC compression balloon, the problem of difficult saliva removal after surgery for oral cancer patients has been solved, enabling rapid and low-cost saliva aspiration and disease monitoring.

CN223668092UActive Publication Date: 2025-12-16SUN YAT SEN UNIVERSITY CANCER CENTER (CANCER HOSPITAL AFFILIATED TO SUN YAT SEN UNIVERSITY CANCER RESEARCH INSTITUTE OF SUN YAT SEN UNIVERSITY)
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Patent Information

Application Number
CN202423182667.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-12-16
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Oral cancer patients often have difficulty effectively clearing saliva after surgery, leading to an increased risk of infection. Existing negative pressure suction devices are expensive and cumbersome to operate, making them inconvenient for patients and their families to use.

Method used

A simple negative pressure saliva aspirator was designed, which uses a disposable drainage bag made of transparent polyethylene and a PVC squeeze balloon that can quickly recover its deformation. Combined with a sealing plate and a rubber gasket, the device achieves a sealed connection and a negative pressure state, which facilitates the rapid aspiration of saliva. The amount of saliva aspirated can be monitored by a scale bar.

Benefits of technology

It enables simple and low-cost saliva extraction, reduces the risk of infection, lowers the complexity of use, and is suitable for home use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of saliva suction, and discloses a simple negative pressure saliva aspirator which comprises a disposable drainage bag, a liquid inlet pipe is arranged at the upper end of the disposable drainage bag in a penetrating mode, an adapting pipe is arranged at the upper end of the liquid inlet pipe in an attached mode, an extrusion balloon is arranged at the upper end of the adapting pipe in a penetrating mode, and a connecting hose is arranged at the upper end of the extrusion balloon in a penetrating mode. A connecting hard tube is fixedly mounted on the connecting hose, and a saliva suction tube is attached to the interior of the connecting hard tube. According to the simple negative pressure saliva aspirator, all parts of the device can be hermetically connected through the first lower sealing plate, the second lower sealing plate, the first upper sealing plate and the second upper sealing plate, so that a disposable drainage bag or a saliva suction tube can be independently replaced according to use requirements, the use cost is reduced, and the extrusion balloon is pressed, so that the operation is simple, and the operation is convenient. The negative pressure state can be achieved, so that saliva can be rapidly sucked from the oral cavity of a patient, and the amount of sucked saliva can be detected through the disposable drainage bag and the scale strip.
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Description

TECHNICAL FIELD

[0001] The utility model relates to saliva suction technical field, concretely is a simple negative pressure saliva suction unit. BACKGROUND

[0002] Oral cancer is a malignant tumor that occurs in the oral cavity, with squamous cell carcinoma being the most common, accounting for more than 90% of oral cancer. According to the global cancer statistics report, there were about 370,000 new cases of oral cancer worldwide in 2020, accounting for 2% of the global number of new cancer cases. Currently, the treatment of oral cancer is still mainly surgical, and a small number of patients choose palliative treatment. Patients often cannot avoid facial disfigurement after surgery and may lead to dysfunction such as opening their mouths and chewing. Due to its special anatomical structure, it is easy to form an ineffective cavity that is difficult to drain after surgery, and saliva accumulation in this area increases the risk of infection. Palliative treatment patients may develop dysphagia in the later stages, often requiring the placement of a negative pressure drainage device to remove oral saliva or wound bleeding, and at the same time, the amount of drainage can be observed to predict or early detect complications such as wound bleeding.

[0003] Oral cancer patients may develop dysphagia due to treatment options or disease progression, and may experience pain while swallowing. Patients refuse to swallow saliva, and when saliva is expelled, it may contaminate the surrounding environment. Family members as caregivers may also become frustrated while cleaning up the mess. The purchase of a negative pressure suction unit by the family is expensive and complicated to operate. SUMMARY

[0004] The utility model aims at providing a simple negative pressure saliva suction unit that can extract saliva from the oral cavity of a patient through a negative pressure structure, making it more convenient and efficient.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a simple negative pressure saliva suction unit, comprising a disposable drainage bag, an inlet pipe is provided at the upper end, a receiving pipe is provided at the upper end of the inlet pipe, a squeeze balloon is provided at the upper end of the receiving pipe, a connecting hose is provided at the upper end of the squeeze balloon, a connecting hard pipe is fixedly installed on the connecting hose, and a saliva suction pipe is provided inside the connecting hard pipe.

[0006] Preferably, the disposable drainage bag is made of transparent polyethylene, and a scale bar is provided on the front side of the disposable drainage bag. Through the above structure, the amount of collected saliva can be measured by the scale bar, thereby allowing for a certain judgment of the patient's condition.

[0007] Preferably, a first lower sealing plate is fixedly installed at the upper end of the inlet pipe, a second lower sealing plate is provided at the upper end of the first lower sealing plate, and the second lower sealing plate is fixedly installed at the lower end of the receiving pipe. Through the above structure, the sealing effect between the inlet pipe and the receiving pipe can be ensured under the action of the first lower sealing plate and the second lower sealing plate.

[0008] Preferably, the extrusion balloon is internally hollow and made of thin PVC material that can quickly recover from deformation.

[0009] Preferably, the first upper sealing plate is fixedly installed on the left side of the connecting hard pipe, and the second upper sealing plate is fixedly installed on the outer surface of the saliva suction pipe.

[0010] Preferably, the first lower sealing plate, the second lower sealing plate, the first upper sealing plate and the second upper sealing plate are all provided with annular rubber gaskets.

[0011] Compared with the prior art, the simple negative pressure saliva aspirator can realize sealing connection between the components of the device, so that the disposable drainage bag or the saliva suction pipe can be individually replaced according to the use requirement, the use cost is reduced, the extrusion balloon can be pressed to reach the negative pressure state, the saliva in the oral cavity of the patient can be quickly and efficiently sucked, and the amount of the sucked saliva can be detected through the disposable drainage bag and the scale bar. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0013] Figure 2 It is a three-dimensional cross-sectional structure schematic view of the extrusion balloon of the utility model;

[0014] Figure 3 It is a three-dimensional cross-sectional structure schematic view of the saliva suction pipe of the utility model;

[0015] Figure 4 It is a three-dimensional structure schematic view of the first upper sealing plate of the utility model;

[0016] Figure 5 It is an exploded three-dimensional structure schematic view of the second upper sealing plate of the utility model;

[0017] Figure 6 It is a three-dimensional structure schematic view of the utility model Figure 2 It is an enlarged structure schematic view of the middle A of the utility model.

[0018] In the figure: 1, disposable drainage bag; 2, liquid inlet pipe; 3, first lower sealing plate; 4, receiving pipe; 5, second lower sealing plate; 6, scale bar; 7, squeeze balloon; 8, connecting hose; 9, connecting hard pipe; 10, first upper sealing plate; 11, second upper sealing plate; 12, saliva suction pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described 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 skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-6 The present application provides a technical solution: a simple negative pressure saliva aspirator, which comprises a disposable drainage bag 1, an upper end of which is provided with a liquid inlet pipe 2, the upper end of the liquid inlet pipe 2 is provided with a receiving pipe 4, the upper end of the receiving pipe 4 is provided with a squeeze balloon 7, the upper end of the squeeze balloon 7 is provided with a connecting hose 8, the connecting hose 8 is fixedly installed with a connecting hard pipe 9, the connecting hard pipe 9 is provided with a saliva suction pipe 12 inside, the upper end of the liquid inlet pipe 2 is fixedly installed with a first lower sealing plate 3, the upper end of the first lower sealing plate 3 is provided with a second lower sealing plate 5, the second lower sealing plate 5 is fixedly installed at the lower end of the receiving pipe 4, the left side of the connecting hard pipe 9 is fixedly installed with a first upper sealing plate 10, the left side of the first upper sealing plate 10 is provided with a second upper sealing plate 11, the second upper sealing plate 11 is fixedly installed on the outer surface of the saliva suction pipe 12, and the first lower sealing plate 3, the second lower sealing plate 5, the first upper sealing plate 10 and the second upper sealing plate 11 are all provided with an annular gasket made of rubber.

[0021] When the device needs to be spliced for use, the receiving tube 4 is moved towards the liquid inlet pipe 2 until the outer surface of the liquid inlet pipe 2 is tightly fitted with the inner surface of the receiving tube 4, because the second lower sealing plate 5 is arranged outside the receiving tube 4, and the first lower sealing plate 3 is fixedly installed outside the liquid inlet pipe 2, at this time, the first lower sealing plate 3 starts to be tightly fitted with the second lower sealing plate 5, at this time, the rubber ring-shaped gasket arranged on the first lower sealing plate 3 and the second lower sealing plate 5 is tightly fitted, at this time, the sealing effect of the connection between the liquid inlet pipe 2 and the receiving tube 4 can be assisted to be guaranteed, and then the saliva suction tube 12 is moved towards the connection hard pipe 9, because the first upper sealing plate 10 is fixedly installed on the connection hard pipe 9, and the second upper sealing plate 11 is fixedly installed on the saliva suction tube 12, at this time, as the saliva suction tube 12 is tightly fitted with the inner surface of the connection hard pipe 9, the rubber ring-shaped gasket arranged on the first upper sealing plate 10 starts to be fitted with the rubber ring-shaped gasket arranged on the second upper sealing plate 11, so that the sealing effect of the connection between the connection hard pipe 9 and the saliva suction tube 12 can be assisted to be guaranteed, and by arranging the disposable drainage bag 1 and the saliva suction tube 12 as a detachable structure, they can be replaced separately, and the use cost can be effectively saved.

[0022] The disposable drainage bag 1 is made of transparent polyethylene material, and the front side of the disposable drainage bag 1 is provided with a scale bar 6, and the squeeze balloon 7 is arranged as hollow inside, and the squeeze balloon 7 is made of thin PVC material which can quickly recover deformation.

[0023] When the saliva suction operation of the patient's oral cavity is needed, the squeeze balloon 7 is squeezed, at this time, the gas in the squeeze balloon 7 starts to be discharged, and when the squeeze balloon 7 is squeezed, the disposable drainage bag 1 is rolled up, so that the squeezed air can be effectively prevented from entering the disposable drainage bag 1, then the saliva suction tube 12 is put into the patient's oral cavity, and then the squeeze balloon 7 is loosened, as the squeeze balloon 7 recovers deformation, at this time, the squeeze balloon 7 is in a negative pressure state, so that the saliva in the oral cavity can be sucked into the saliva suction tube 12, and then through the connection hard pipe 9, the connection soft pipe 8, the squeeze balloon 7, the receiving tube 4 and the liquid inlet pipe 2, the saliva is entered into the disposable drainage bag 1, and the amount of the sucked saliva can be directly observed through the scale bar 6 arranged on the disposable drainage bag 1, so that the patient's condition can be understood.

[0024] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A simple negative pressure saliva aspirator comprising a disposable drainage bag (1), the upper end of which is provided with a liquid inlet tube (2) through the upper end, characterized in that, Also include: The upper end of the liquid inlet pipe (2) is attached to the receiving pipe (4), and the upper end of the receiving pipe (4) is provided with an extrusion balloon (7), and the upper end of the extrusion balloon (7) is provided with a connecting hose (8), and the connecting hose (8) is fixedly installed with a connecting hard pipe (9), and the connecting hard pipe (9) is internally attached with a saliva suction pipe (12).

2. A simple negative pressure saliva aspirator according to claim 1, characterized in that: The disposable drainage bag (1) is made of transparent polyethylene material, and the front side of the disposable drainage bag (1) is provided with a scale bar (6).

3. The simple negative pressure saliva aspirator according to claim 1, wherein: The upper end of the liquid inlet pipe (2) is fixedly installed with a first lower sealing plate (3), and the upper end of the first lower sealing plate (3) is attached with a second lower sealing plate (5), and the second lower sealing plate (5) is fixedly installed at the lower end of the receiving pipe (4).

4. The simple negative pressure saliva aspirator according to claim 1, wherein: The extrusion balloon (7) is internally provided with a hollow, and the extrusion balloon (7) is made of thin PVC material which can quickly recover deformation.

5. The simple negative pressure saliva aspirator according to claim 3, characterized in that: The left side of the connecting hard pipe (9) is fixedly installed with a first upper sealing plate (10), and the left side of the first upper sealing plate (10) is attached with a second upper sealing plate (11), and the second upper sealing plate (11) is fixedly installed on the outer surface of the saliva suction pipe (12).

6. A simple negative pressure saliva aspirator according to claim 5, characterized in that: The first lower sealing plate (3), the second lower sealing plate (5), the first upper sealing plate (10) and the second upper sealing plate (11) are all provided with annular gaskets made of rubber material.