CN114404089A - A stomatology negative pressure device that is easy to attach to tooth tissue - Google Patents

Abstract

The invention discloses a negative pressure device convenient to attach to dental tissues for department of stomatology, belonging to the field of treatment of department of stomatology. The invention has high automation degree, can clean accumulated liquid by controlling air pressure without any other control element, and improves the utilization rate of resources.

Description

A stomatology negative pressure device that is easy to attach to tooth tissue

technical field

The invention relates to the field of stomatology treatment, in particular to a stomatology negative pressure device which is easy to be attached to tooth tissue.

Background technique

Oral negative pressure drainage device is a common device in the field of stomatology medical equipment. When stomatology medical staff treat patients with dental diseases or wash their teeth, the nozzle of the treatment equipment will spray a lot of water, and the mixed saliva will accumulate in the mouth. The patient needs to repeatedly spit out the water and saliva in the mouth in order to cooperate with the medical staff's treatment. Negative pressure wound treatment technology is a new technology developed in recent years for the treatment of wounds. It uses biological semi-permeable membranes to seal open wounds, uses a special negative pressure machine to generate a certain negative pressure, and acts on the wound through drainage tubes and dressings. Wound after debridement.

The existing stomatology negative pressure device is inconvenient to collect and process the effusion when performing negative pressure suction treatment, and uses other equipment to assist, which increases the input cost of the negative pressure equipment, and the operation steps are cumbersome, which reduces the doctor's time. treatment efficiency. In view of this, we propose a dental negative pressure device that is easy to attach to dental tissue.

SUMMARY OF THE INVENTION

1. Technical problems to be solved

The technical problem to be solved by the present invention is to provide a stomatology negative pressure device that is easy to be attached to the dental tissue, which can effectively solve the problem that the existing stomatology negative pressure device is inconvenient to carry out fluid accumulation when performing negative pressure suction treatment. Collecting and processing, and using other equipment to assist, increase the input cost of negative pressure equipment, and the operation steps are cumbersome, reducing the problem of the doctor's treatment efficiency.

2. Technical solutions

In order to solve the above problems, the present invention adopts the following technical solutions:

A stomatology negative pressure device which is easy to be attached to tooth tissue, comprising a negative pressure cavity, a liquid outlet cavity is arranged at the lower end of the negative pressure cavity, the liquid outlet cavity is communicated with the inner cavity of the negative pressure cavity, and the The upper end of the liquid outlet chamber is provided with a guide boss, the upper end of the guide boss is provided with a negative pressure connection pipe, the lower end of the liquid outlet chamber is provided with a liquid outlet pipe, and the inner cavity of the negative pressure chamber is movably connected with a piston plate The upper end of the piston plate is provided with a driving rack, the left and right ends of the piston plate are symmetrically inserted with a transmission rod, the lower end of the transmission rod is provided with an arc plate, and the outer side of the arc plate is provided with a scraper, The inner side of the adjacent arc-shaped plate is provided with a filter plate, the lower end of the filter plate is provided with a blocking end, and the upper end of the transmission rod is provided with a driven rack, between the driven rack and the driving rack There is a transmission gear, the driven rack, the driving rack and the driving gear are all meshed, and the driven rack and the driving rack are parallel to each other, a fixing sleeve is fixedly installed on the negative pressure cavity, and the fixing sleeve is A return spring is arranged inside, and the transmission rod is movably inserted into the fixed sleeve.

Preferably, a suction pipe is provided at the lower end of the negative pressure cavity, and both the suction pipe and the negative pressure connecting pipe communicate with the inner cavity of the negative pressure cavity.

Preferably, the outer diameter of the piston plate is equal to the inner diameter of the negative pressure cavity, and the negative pressure cavity is provided with a fixing block for the active connection of the piston plate.

Preferably, the driving rack is arranged between adjacent driven racks, and the center line of the driving rack and the center of the negative pressure cavity are collinear.

Preferably, the diameter of the upper end of the liquid outlet chamber is smaller than the outer diameter of the plugging end, and the plugging end is arranged in the inner cavity of the liquid outlet chamber.

Preferably, the diameter of the upper end of the liquid outlet chamber is smaller than the outer diameter of the plugging end, and the plugging end is arranged in the inner cavity of the liquid outlet chamber.

Preferably, the cross section of the transmission rod is circular, and a sealing ring is provided between the transmission rod and the piston plate.

Preferably, the driving rack, the driven rack and the transmission gear are all arranged above the piston plate.

3. Beneficial effects

(1) In the present invention, the transmission gear, the driving rack, the driven rack, the piston plate, the transmission rod, the arc plate and the filter plate are installed, and the air pump is connected to the outer end of the negative pressure connecting pipe, and the air pump is connected by the air pump. The inside of the negative pressure cavity is pumped, so that the piston plate can move from bottom to top in the negative pressure cavity, and the accumulated liquid is sucked into the inside of the negative pressure cavity through the suction pipe. When cleaning the accumulated liquid inside the negative pressure cavity , By increasing the pressure of the air pump, the driving rack on the piston plate can be inserted between the adjacent transmission gears. Down movement, the return spring is compressed, the blocking end is separated from the upper port of the liquid outlet chamber, and the accumulated liquid can be automatically discharged into the liquid outlet chamber through the through holes on the filter plate, and through the liquid outlet pipe at the lower end of the liquid outlet chamber The effusion is discharged with a high degree of automation, and the effusion can be cleaned only by controlling the air pressure, without any other control components, which improves the utilization rate of resources.

(2) In the present invention, by installing a fixed sleeve, a return spring, a transmission rod and a driven rack, the driving gear moves upward and drives the transmission gear to rotate, and the driven gear is driven by the meshing action of the transmission gear and the driven rack. The bar moves down and squeezes to reset. At this time, the blocked end can be separated from the upper port of the liquid outlet chamber, and the accumulated liquid can be automatically discharged; after it is separated from the force of the air pump, it can be automatically The transmission rod drives the arc plate to move upward, so that the blocking end blocks the upper port of the liquid outlet cavity, so that only negative pressure treatment operation can be performed.

(3) The present invention can drive the scraper to automatically clean the liquid accumulation on the inner side wall of the negative pressure cavity during the up and down movement of the arc plate by installing the arc plate and the scraper arranged on the outer side of the arc plate, without the need for The manual operation ensures the cleanliness of the negative pressure cavity and the use effect of the negative pressure cavity.

(4) In the present invention, the filter plate is installed on the inner side of the adjacent arc-shaped plate. Through the arrangement of the filter plate, the filter plate can move up and down following the transmission rod while facilitating the discharge of the accumulated liquid, which can generate up and down pulling force for extrusion. , which makes the effusion easier to discharge and improves the discharge efficiency of the effusion.

Description of drawings

Fig. 1 is the schematic diagram of the liquid outlet state of the present invention;

Fig. 2 is the negative pressure suction state schematic diagram of the present invention;

Fig. 3 is the enlarged schematic diagram of M place of the present invention;

FIG. 4 is a schematic diagram of a partial top down section structure of the present invention.

Reference numerals: 1. Negative pressure cavity; 2. Piston plate; 3. Guide boss; 4. Negative pressure connecting pipe; 5. Liquid outlet cavity; 6. Blocking end; 7. Filter plate; ;9, arc plate; 10, transmission rod; 11, driven rack; 12, transmission gear; 13, liquid outlet pipe; 14, driving rack; 15, fixed sleeve; 16, return spring; 17, suction pipe .

Detailed ways

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

Please refer to FIGS. 1-4, an embodiment provided by the present invention: a stomatology negative pressure device that is easy to attach to dental tissue, including a negative pressure cavity 1, and a liquid outlet cavity is provided at the lower end of the negative pressure cavity 1 5. A support leg is arranged at the lower end of the liquid outlet chamber 5 , the liquid outlet chamber 5 communicates with the inner cavity of the negative pressure chamber 1 , and the negative pressure chamber 1 and the liquid outlet chamber 5 are fixedly installed. The liquid outlet cavity 5 is set in an inverted cone shape, and the liquid outlet cavity 5 is set in an inverted cone shape, which can facilitate the discharge of fluid during oral treatment, and can also increase the placement stability of the negative pressure device. The upper end of the liquid outlet chamber 5 is provided with a guide boss 3 , wherein the guide boss 3 is fixedly welded on the negative pressure cavity 1 . The guide boss 3 communicates with the inner cavity of the negative pressure cavity 1 . The upper end of the guide boss 3 is provided with a negative pressure connection pipe 4 , and the lower end of the negative pressure cavity 1 is provided with a suction pipe 17 . An air pump is connected to the outer end of the negative pressure connecting pipe 4 , which can suck the accumulated fluid during the treatment of the patient into the inner cavity of the negative pressure cavity 1 through the negative pressure connecting pipe 4 and the suction pipe 17 . The lower end of the liquid outlet chamber 5 is provided with a liquid outlet pipe 13, and the liquid outlet pipe 13 is used for treating the discharged therapeutic liquid. For the treatment of the therapeutic liquid, no other equipment is needed to assist, just increase the air pressure of the air pump, the operation is simple and the use is convenient.

A piston plate 2 is movably connected to the inner cavity of the negative pressure cavity 1 . The outer diameter of the piston plate 2 is equal to the inner diameter of the negative pressure cavity 1 , and the negative pressure cavity 1 is provided with a fixed block for the movable connection of the piston plate 2 . The fixed block is fixed inside the negative pressure cavity 1 by screws, and the setting of the fixed block can guide the up and down movement of the piston plate 2, so that the piston plate 2 is always in contact with the inner wall of the negative pressure cavity 1 during the up and down movement. , to ensure the effect of negative pressure therapy.

When the inside of the negative pressure cavity 1 is pumped by the air pump, the piston plate 2 can move from bottom to top in the cavity of the negative pressure cavity 1, so as to suck the fluid accumulated in the blocked end 6 of the patient's oral cavity into the negative pressure cavity through the suction pipe 17. The lower end of the inner cavity of the pressure chamber body 1. A driving rack 14 is provided on the upper end of the piston plate 2 , wherein the piston plate 2 is in an inverted "T" shape, and the driving rack 14 is symmetrically arranged on the left and right sides of the upper end of the piston plate 2 . The left and right ends of the piston plate 2 are symmetrically inserted with transmission rods 10 . An arc-shaped plate 9 is provided at the lower end of the transmission rod 10, and the arc-shaped plate 9 is fixedly welded with the transmission rod 10. A scraper 8 is arranged outside the arc-shaped plate 9. The liquid is scraped off from the negative pressure cavity 1 , which ensures the cleanliness of the negative pressure cavity 1 , and is easy to treat and recover the effusion.

A filter plate 7 is arranged on the inner side of the adjacent arc-shaped plate 9, and a plurality of through holes are arranged on the filter plate 7, which can facilitate the treatment of leakage of effusion. A blocking end 6 is provided at the lower end of the filter plate 7 , the diameter of the upper end of the liquid outlet chamber 5 is smaller than the outer diameter of the blocking end 6 , and the blocking end 6 is arranged in the inner cavity of the liquid outlet chamber 5 . Among them, the blocking end 6 is a sphere, the interior of which can be hollow, and the outlet cavity 5 is blocked by the blocking end 6, so that the inlet of the outlet chamber 5 can be blocked by the blocking end 6 when the patient is treated with negative pressure, and the When expelling the therapeutic extrusion, the driving rack 14 is inserted between the adjacent transmission gears 12 by increasing the suction pressure of the air pump, and the driving gear 12 is rotated by the meshing action of the driving rack 14 and the transmission gear 12 . The upper end of the transmission rod 10 is provided with a driven rack 11, a transmission gear 12 is arranged between the driven rack 11 and the driving rack 14, and the driven rack 11, the driving rack 14 and the transmission gear 12 are all meshed, and the The driving rack 11 and the driving rack 14 are parallel to each other, the driving rack 14 is arranged between adjacent driven racks 11 , and the center line of the driving rack 14 is collinear with the center of the negative pressure cavity 1 . The driving rack 14 , the driven rack 11 and the transmission gear 12 are all arranged above the piston plate 2 . A fixing sleeve 15 is fixedly installed on the negative pressure cavity 1 , a return spring 16 is arranged inside the fixing sleeve 15 , and the transmission pull rod 10 is movably inserted into the inside of the fixing sleeve 15 . The return spring 16 is arranged between the transmission rod 10 and the fixed sleeve 15 , and the upper and lower ends of the return spring 16 are respectively fixed on the transmission rod 10 and the fixed sleeve 15 . During the rotation of the transmission gear 12, the driven rack 11 can be driven to move downward through the meshing action of the transmission gear 12 and the driven rack 11. At this time, the return spring 16 is compressed, and the transmission rod 10 drives the arc-shaped plate 9. Move downward, thereby driving the blocking end 6 away from the upper port of the liquid outlet chamber 5. At this time, the treatment fluid in the negative pressure chamber 1 can be leaked into the liquid outlet chamber 5 through the liquid outlet chamber 5. The liquid outlet pipe 13 at the lower end is discharged.

Working principle: When using, connect the end of the negative pressure connecting pipe 4 to the air pump, and under the action of the air pump, through the negative pressure connecting pipe 4 to inhale the inside of the negative pressure cavity 1, so that a negative pressure is formed inside the negative pressure cavity 1. At this time, the piston plate 2 inside the negative pressure cavity 1 moves from bottom to top in the negative pressure cavity 1 to suck the fluid in the patient's oral cavity into the inside of the negative pressure cavity 1 . During this process, the blocking end 6 blocks the liquid outlet chamber 5; when it is necessary to clean up the liquid accumulation inside the negative pressure device, by increasing the suction pressure of the suction pump, the position where the piston plate 2 moves upward is higher. , the driving rack 14 above the piston plate 2 is inserted between the adjacent driven racks 11, so that the transmission gear 12 rotates; during the rotation of the transmission gear 12, the meshing effect of the transmission gear 12 and the driven rack 11 , can drive the driven rack 11 to move downward. At this time, the return spring 16 is compressed, and the transmission rod 10 drives the arc plate 9 to move downward, thereby driving the blocking end 6 to separate from the upper port of the liquid outlet chamber 5. At this time, Through this, the treatment fluid in the negative pressure chamber 1 can leak into the liquid outlet chamber 5 and be discharged through the liquid outlet pipe 13 at the lower end of the liquid outlet chamber 5 for treatment.

Those of ordinary skill in the art should realize that the above embodiments are only used to illustrate the present invention, but not to limit the present invention. Changes and modifications will fall within the scope of the claims of the present invention.

Claims (8)

1. A stomatology negative pressure device that is easy to be attached to dental tissue, comprising a negative pressure cavity (1), characterized in that: the lower end of the negative pressure cavity (1) is provided with a liquid outlet cavity (5), The liquid outlet cavity (5) is communicated with the inner cavity of the negative pressure cavity (1), the upper end of the liquid outlet cavity (5) is provided with a guide boss (3), and the upper end of the guide boss (3) is provided with a guide boss (3). There is a negative pressure connecting pipe (4), a liquid outlet pipe (13) is arranged at the lower end of the liquid outlet cavity (5), and a piston plate (2) is movably connected to the inner cavity of the negative pressure cavity (1). The upper end of the piston plate (2) is provided with a driving rack (14), the left and right ends of the piston plate (2) are symmetrically inserted with a transmission rod (10), and the lower end of the transmission rod (10) is provided with an arc-shaped plate (9), a scraper (8) is provided on the outer side of the arc-shaped plate (9), and a filter plate (7) is provided on the inner side of the adjacent arc-shaped plate (9), and the lower end of the filter plate (7) is provided with a filter plate (7). There is a blocking end (6), the upper end of the transmission rod (10) is provided with a driven rack (11), and a transmission gear (11) is provided between the driven rack (11) and the driving rack (14). 12), the driven rack (11), the driving rack (14) and the transmission gear (12) are all meshed, and the driven rack (11) and the driving rack (14) are parallel to each other, the negative pressure A fixing sleeve (15) is fixedly installed on the cavity (1), a return spring (16) is arranged inside the fixing sleeve (15), and the transmission rod (10) is movably inserted into the inside of the fixing sleeve (15). 2. The stomatological negative pressure device according to claim 1, characterized in that, a suction pipe (17) is provided at the lower end of the negative pressure cavity (1), and the suction Both the pipe (17) and the negative pressure connecting pipe (4) communicate with the inner cavity of the negative pressure cavity (1). The stomatology negative pressure device according to claim 1, characterized in that the outer diameter of the piston plate (2) is equal to the inner diameter of the negative pressure cavity (1), and the negative pressure The pressure chamber body (1) is provided with a fixing block for the active connection of the piston plate (2). 4 . The dental negative pressure device according to claim 1 , wherein the driving rack ( 14 ) is arranged adjacent to the driven rack ( 11 ). 5 . and the center line of the driving rack (14) is collinear with the center of the negative pressure cavity (1). The stomatology negative pressure device according to claim 1, characterized in that, the diameter of the upper end of the liquid outlet chamber (5) is smaller than the outer diameter of the blocking end (6), and The blocking end (6) is arranged in the inner cavity of the liquid outlet cavity (5). 6. The dental negative pressure device according to claim 1, characterized in that the return spring (16) is arranged between the transmission rod (10) and the fixing sleeve (15) , and the upper and lower ends of the return spring (16) are respectively fixed on the transmission rod (10) and the fixing sleeve (15). 7. The dental negative pressure device according to claim 1, characterized in that the cross section of the transmission rod (10) is circular, and the transmission rod (10) and the piston plate ( 2) There is a sealing ring between them. 8. The dental negative pressure device according to claim 1, characterized in that the driving rack (14), the driven rack (11) and the transmission gear (12) All are arranged above the piston plate (2).

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