CN112370197B - Oral cavity saliva suction device - Google Patents

Abstract

The invention discloses an oral saliva sucking and removing device, which relates to the technical field of medical instruments and comprises a saliva absorbing mechanism, a connecting block and a negative pressure collecting device which are sequentially connected by a drainage tube, wherein the saliva absorbing mechanism is of a hollow structure and comprises a tongue pad and a tooth occlusion groove, the front end of the tooth occlusion groove is provided with a lip fitting part which is communicated with the drainage tube, the tooth occlusion groove comprises an upper tooth groove and a lower tooth groove, and the bottom and the side edge of the tongue pad are provided with liquid sucking holes; the saliva suction device is simple in structure and convenient to operate, saliva can be sucked and removed independently by a patient, time and labor are saved, discomfort of the patient is relieved greatly, and pain is relieved.

Description

Oral cavity saliva suction device

Technical Field

The invention relates to the technical field of medical instruments, in particular to an oral saliva sucking and removing device.

Background

In the treatment process of oral disease, corresponding medicine and device can all be used usually, under the stimulation of these medicine and device, the patient can secrete a large amount of saliva in the oral cavity, because there are a large amount of bacteria in the saliva, consequently in order to prevent the infection of wound in the oral cavity, medical personnel need adopt the absorption pad to adsorb the saliva of patient secretion and remove usually, on the one hand, frequent change absorbs the work load that the pad greatly increased medical personnel, on the other hand, the absorption pad is also taken away the medicine in the oral cavity easily, lead to treatment unsatisfactory easily. Saliva is therefore usually aspirated from the oral cavity using a saliva aspirating device. For example, an "oral cavity supporting tongue" disclosed in chinese patent document, publication No. CN203122489U, discloses an oral cavity supporting tongue comprising two wedge-shaped tooth supporting blocks, a plurality of ribs formed on the upper and lower surfaces of the tooth supporting blocks, inner and outer convex edges formed on the inner and outer sides of the tooth supporting blocks, respectively, a tongue plate formed between the two tooth supporting blocks to connect them together, the tongue plate being disposed in an inclined manner, the upper portion of the tongue plate being circular arc-shaped, and the lower portion thereof having a V-shaped opening. However, the invention does not have the function of sucking and removing saliva, and in the treatment process of oral diseases, the saliva can infect wounds and even flow out to pollute clothes of patients, so that discomfort is brought to the patients.

Disclosure of Invention

The invention provides an oral saliva sucking device, aiming at solving the problems that medical staff usually need to adsorb and remove saliva secreted by a patient by adopting an adsorption pad in the treatment process of oral diseases at present, the workload of the medical staff is greatly increased by frequently replacing the adsorption pad, the medicine in the oral cavity is easy to be taken away by the adsorption pad, the treatment effect is easy to be unsatisfactory, the existing oral treatment equipment does not have the function of sucking and removing the saliva, and the like.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an oral cavity saliva suction device, includes saliva absorbing mechanism, connecting block and the negative pressure collection device that adopts the drainage tube to connect gradually, saliva absorbing mechanism is hollow structure, including tongue pad and tooth interlock groove, tooth interlock groove front end is equipped with lip laminating portion, lip laminating portion surface is equipped with the moisturizing membrane, its lip laminating portion and drainage tube intercommunication, tooth interlock groove includes alveolus and lower alveolus, the bottom and the side of tongue pad are equipped with the imbibition hole, negative pressure collection device side is equipped with the buckle.

The saliva absorbing mechanism, the connecting block and the negative pressure collecting device are connected into a whole by the drainage tube, when the saliva absorbing mechanism is used, the saliva absorbing mechanism is firstly placed in an oral cavity, at the moment, the tongue pad can be padded on the tongue, teeth are bitten into the upper dental alveolus and the lower dental alveolus, lips are attached to the lip attaching part, the moisturizing membrane can keep the lips of a patient moist in the process of using the oral saliva absorbing device, discomfort is reduced, when the patient secretes saliva, the negative pressure collecting device can be manually opened, at the moment, the saliva can be absorbed through the liquid absorbing holes formed in the bottom and the side edge of the tongue pad, the saliva is drained into the negative pressure collecting device through the drainage tube, and the whole saliva absorbing process is completed. The saliva suction device is simple in structure and convenient to operate, saliva can be sucked and removed independently by a patient, time and labor are saved, discomfort of the patient is relieved greatly, and pain is relieved.

Preferably, the negative pressure collecting device comprises a compression bag and a liquid collecting bottle which are connected with each other, and the drainage tube penetrates through the compression bag and extends into the liquid collecting bottle.

Preferably, the liquid collecting bottle comprises a connecting section and a liquid collecting section, and a fixing groove which is penetrated by the drainage tube and matched with the connecting section is formed in the bottom of the compression bag.

Preferably, the connection section and the fixing groove are rotatably connected by a screw thread.

Preferably, the top of the fixing groove is provided with a through hole, the through hole is covered by an elastic blocking sheet, and one end of the elastic blocking sheet is fixedly arranged at the top of the fixing groove through a fixing nail.

Preferably, the top of the compression bag is provided with an air outlet assembly, the air outlet assembly comprises an upper barrier, a lower barrier and an air outlet ring, the upper barrier and the lower barrier are connected through a connecting column in sliding connection with the bag wall of the compression bag, the inner circle caliber of the air outlet ring is larger than the diameter of the lower barrier, and the outer circle caliber of the air outlet ring is smaller than the diameter of the upper barrier.

The negative pressure collecting device comprises a compression bag and a liquid collecting bottle, when saliva is required to be collected, the compression bag can be pinched by hands, at the moment, the compression bag is in a compression state, air in the compression bag overflows through an air outlet ring, an upper blocking body is pushed open, compression of the compression bag is completed, after the hands are released, the upper blocking body falls down to block the air outlet ring, the air is sucked into the liquid collecting bottle from a drainage tube, an elastic blocking sheet is pushed open and flows into the compression bag, and accordingly sucking and collection of saliva are completed. And because the compression bag is connected with the liquid collection bottle by screw thread, the liquid collection bottle can be disassembled and poured after being fully used for collecting saliva, which is convenient and fast.

Preferably, the connecting block is provided with an ear cap.

Preferably, the connecting block is provided with a hook.

The earmuffs or the hooks can fix the oral saliva sucking and removing device to prevent the oral saliva sucking and removing device from falling off.

Preferably, the saliva absorbing mechanism is prepared by adopting an antibacterial organic silicon material, and the antibacterial organic silicon material comprises the following preparation steps:

(1) dissolving 10 parts of polyhexamethylene guanidine hydrochloride in 50-60 parts of methanol, stirring and heating at 50-60 ℃ for 40-60min, then adding 35-45 parts of 4-hydroxybutyl glycidyl ether, carrying out heat preservation stirring reaction for 30-40h, carrying out rotary evaporation washing, and carrying out vacuum drying for 10-15h to prepare pre-modified guanidine salt;

(2) placing 5-10 parts of pre-modified guanidine salt into 30-50 parts of trichloromethane, then adding 0.01-0.05 part of stannous octoate and 0.1-0.3 part of p-methoxyphenol, dissolving at 30-40 ℃, then adding 30-40 parts of isocyanate ethyl acrylate, keeping the temperature, reacting for 5-8h, then carrying out rotary steaming washing, and carrying out vacuum drying for 10-15h to prepare secondary modified guanidine salt;

(3) immersing silicon dioxide in 1-3wt% of 3- (trimethoxysilylpropyl) -2-bromo-2-methylpropionate ethanol solution, and preserving the temperature at 20-30 ℃ for 10-15h to prepare bromine modified silicon dioxide particles;

(4) placing 10-15 parts of bromine-modified silica particles into 100-120 parts of methanol, then adding 35-50 parts of secondary modified guanidine salt, adding 0.5-1 part of cuprous bromide, 1-2 parts of triethylamine and 1-2 parts of ethyl 2-bromoisobutyrate under the protection of nitrogen, carrying out heat preservation reaction at 50-60 ℃ for 5-7h, carrying out centrifugal precipitation washing, and carrying out vacuum drying for 10-15h to prepare antibacterial silica particles;

(5) adding 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane and antibacterial silica particles into the silicon rubber containing vinyl side groups, uniformly mixing, vulcanizing at 170-190 ℃ for 3-5h, cooling at room temperature, and preparing the antibacterial organic silicon material.

According to the invention, the saliva absorption mechanism is prepared from an antibacterial organic silicon material, when the antibacterial organic silicon material is prepared, firstly, polyhexamethylene guanidine hydrochloride with antibacterial property is modified through 4-hydroxybutyl glycidyl ether and isocyanate ethyl acrylate to prepare secondary modified guanidine salt, then, the secondary modified guanidine salt is used for carrying out graft polymerization on silicon dioxide, the silicon dioxide particles after graft polymerization have excellent antibacterial property, and then, the antibacterial silicon dioxide particles and the silicon rubber containing vinyl side groups are mixed to prepare the organic silicon material with excellent antibacterial property and antibacterial property.

Firstly, the invention modifies polyhexamethylene guanidine hydrochloride by 4-hydroxybutyl glycidyl ether, hydroxyl is successfully introduced into 4-hydroxybutyl glycidyl ether after epoxy ring-opening reaction, then, pre-modified guanidine salt with active hydroxyl is mixed with isocyanate ethyl acrylate, at the moment, the active hydroxyl on the pre-modified guanidine salt reacts with isocyanate groups on the isocyanate ethyl acrylate, so that double bonds on the isocyanate ethyl acrylate are successfully introduced into the secondary modified guanidine salt, then, the secondary modified guanidine salt is mixed with bromine modified silica particles, so that antibacterial polymer is successfully grafted on the surfaces of the silica particles, finally, the antibacterial silica particles with antibacterial effect and the silicone rubber of the silicone rubber containing vinyl side groups are mixed and vulcanized, in the vulcanizing process, because the polymer end grafted on the surface of the antibacterial silicon dioxide particles has double bonds, under the action of a vulcanizing agent, the double bonds on the surface of the antibacterial silicon dioxide particles are bonded with vinyl in the silicon rubber containing vinyl side groups in a cross-linking way, so that in the invention, the antibacterial silicon dioxide particles can be firmly combined with silicon rubber molecular chains through chemical bonds, the problem that antibacterial agents are easy to migrate and dissolve out in the long-time storage and storage process is prevented, meanwhile, the antibacterial silicon dioxide is mixed with the silicon rubber to form a three-dimensional cross-linking network, when external force is received, the whole system is uniformly stressed, and the mechanical property of the system is greatly improved.

Preferably, the mass ratio of the silicon rubber containing vinyl side groups to the antibacterial silicon dioxide particles is 10: 1-2.

Therefore, the invention has the following beneficial effects: the saliva suction device is simple in structure and convenient to operate, saliva can be sucked and removed independently by a patient, time and labor are saved, discomfort of the patient is relieved greatly, and pain is relieved.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Figure 3 is a schematic cross-sectional view of a saliva absorbing mechanism of the present invention.

Fig. 4 is an enlarged view of the structure at a in the present invention.

FIG. 5 is an enlarged view of the structure at B of the present invention.

Fig. 6 is another schematic structure of the present invention.

In the figure: saliva absorbing mechanism 1, tongue pad 11, imbibition hole 111, tooth interlock groove 12, upper alveolus 121, lower alveolus 122, lip laminating portion 13, moisturizing membrane 131, connecting block 2, earmuff 21, hook 22, drainage tube 3, negative pressure collection device 4, compression bag 41, fixed recess 411, through-hole 412, elastic separation piece 413, staple 414, liquid collecting bottle 42, connecting section 421, liquid collecting section 422, air outlet assembly 43, upper separation body 431, lower separation body 432, air outlet ring 433, connecting column 434, buckle 44.

Detailed Description

The invention is further described with reference to specific embodiments.

Example 1: as shown in fig. 1-3, an oral saliva absorbing and removing device comprises a saliva absorbing mechanism 1, a connecting block 2 and a negative pressure collecting device 4 which are sequentially connected by a drainage tube 3, wherein an ear cap 21 is arranged on the connecting block 2, the saliva absorbing mechanism 1 is of a hollow structure and comprises a tongue pad 11 and a tooth occlusion groove 12, a lip fitting part 13 is arranged at the front end of the tooth occlusion groove 12, a moisturizing film 131 is arranged on the surface of the lip fitting part 13 and is communicated with the drainage tube 3, the tooth occlusion groove 12 comprises an upper tooth groove 121 and a lower tooth groove 122, and liquid suction holes 111 are arranged at the bottom and the side edges of the tongue pad 11; the negative pressure collecting device 4 comprises a compression bag 41 and a liquid collecting bottle 42 which are connected with each other, the drainage tube 3 penetrates through the compression bag 41 and extends into the liquid collecting bottle 42, the liquid collecting bottle 42 comprises a connecting section 421 and a liquid collecting section 422, a fixing groove 411 which is penetrated through by the drainage tube 3 and matched with the connecting section 421 is arranged at the bottom of the compression bag 41, and the connecting section 421 and the fixing groove 411 are connected in a rotating mode through threads; as shown in fig. 5, a through hole 412 is formed at the top of the fixing groove 411, the through hole 412 is covered by an elastic blocking sheet 413, and one end of the elastic blocking sheet 413 is fixedly arranged at the top of the fixing groove 411 through a fixing nail 414; as shown in fig. 4, an air outlet assembly 43 is arranged at the top of the compression bag 41, the air outlet assembly 43 includes an upper blocking body 431, a lower blocking body 432 and an air outlet ring 433, the upper blocking body 431 and the lower blocking body 432 are connected through a connecting column 434 penetrating through the bag wall of the compression bag 41, the inner circle caliber of the air outlet ring 433 is larger than the diameter of the lower blocking body 432, and the outer circle caliber of the air outlet ring 433 is smaller than the diameter of the upper blocking body 431; a buckle 44 is arranged on the side of the negative pressure collecting device 4;

the saliva absorbing mechanism is prepared from an antibacterial organic silicon material, and the antibacterial organic silicon material comprises the following preparation steps:

(1) dissolving 10 parts of polyhexamethylene guanidine hydrochloride in 55 parts of methanol, stirring and heating at 55 ℃ for 50min, then adding 40 parts of 4-hydroxybutyl glycidyl ether, carrying out heat preservation and stirring reaction for 35h, carrying out rotary steaming washing, and carrying out vacuum drying for 12h to prepare pre-modified guanidine salt;

(2) putting 8 parts of pre-modified guanidine salt into 40 parts of trichloromethane, then adding 0.03 part of stannous octoate and 0.2 part of p-methoxyphenol, dissolving at 35 ℃, then adding 35 parts of isocyanate ethyl acrylate, keeping the temperature, reacting for 7 hours, then carrying out rotary steaming washing, and carrying out vacuum drying for 13 hours to prepare secondary modified guanidine salt;

(3) immersing silicon dioxide in 2 wt% of 3- (trimethoxysilylpropyl) -2-bromo-2-methylpropionate ethanol solution, and keeping the temperature at 25 ℃ for 13h to prepare bromine-modified silicon dioxide particles;

(4) placing 12 parts of bromine-modified silica particles into 110 parts of methanol, then adding 40 parts of secondary modified guanidine salt, adding 0.8 part of cuprous bromide, 1.5 parts of triethylamine and 1.5 parts of ethyl 2-bromoisobutyrate under the protection of nitrogen, carrying out heat preservation reaction at 55 ℃ for 6 hours, carrying out centrifugal precipitation washing, and carrying out vacuum drying for 12 hours to obtain antibacterial silica particles;

(5) adding 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane accounting for 1.5 percent of the total mass of the silicon rubber and antibacterial silicon dioxide particles accounting for 15 percent of the total mass of the silicon rubber into the silicon rubber containing vinyl side groups, uniformly mixing, then vulcanizing at 180 ℃ for 4 hours, cooling at room temperature, and preparing the antibacterial organic silicon material.

Example 2: as shown in fig. 6, the difference from embodiment 1 is that a hook 22 is provided on the connection block 2.

When the saliva absorbing mechanism is used, firstly, the saliva absorbing mechanism is placed in the oral cavity, at the moment, the tongue pad can be padded on the tongue, teeth are bitten into the upper dental alveolus 121 and the lower dental alveolus 122, and lips are attached to the moisture-preserving film 131 on the surface of the lip attaching part 13, so that the moisture can be kept; when a patient secretes saliva, the compression bag 41 can be pinched by hands, at the moment, the compression bag 41 is in a compression state, gas inside the compression bag 41 overflows through the gas outlet ring 433, the upper blocking body 431 is pushed open, the compression of the compression bag 41 is completed, the compression bag 41 begins to expand after the hands are released, at the moment, the upper blocking body 431 falls to block the gas outlet ring 433, the gas is sucked into the liquid collecting bottle 42 from the drainage tube 3, the elastic blocking sheet 413 is pushed open and then flows into the compression bag 41, therefore, in the expansion process of the compression bag 41, the saliva can be sucked through the liquid sucking holes 111 formed in the bottom and the side edge of the tongue pad 11, the saliva is drained into the negative pressure collecting device through the drainage tube, and the whole saliva sucking process is completed. In addition, the compression bag 41 is connected with the liquid collection bottle 42 in a threaded manner, so that the liquid collection bottle 42 can be detached and poured after being filled with saliva, and the device is convenient and quick.

Example 3: the difference from the embodiment 1 is that the antibacterial organosilicon material comprises the following preparation steps:

(1) dissolving 10 parts of polyhexamethylene guanidine hydrochloride in 50 parts of methanol, stirring and heating at 50 ℃ for 60min, then adding 35 parts of 4-hydroxybutyl glycidyl ether, carrying out heat preservation and stirring reaction for 40h, carrying out rotary steaming washing, and carrying out vacuum drying for 10h to prepare pre-modified guanidine salt;

(2) placing 5 parts of pre-modified guanidine salt into 30 parts of trichloromethane, then adding 0.01 part of stannous octoate and 0.1 part of p-methoxyphenol, dissolving at 30 ℃, then adding 30 parts of isocyanate ethyl acrylate, keeping the temperature and reacting for 8 hours, then carrying out rotary steaming washing, and carrying out vacuum drying for 10 hours to prepare secondary modified guanidine salt;

(3) immersing silicon dioxide in 1 wt% of 3- (trimethoxysilylpropyl) -2-bromo-2-methylpropionate ethanol solution, and keeping the temperature at 20 ℃ for 15h to prepare bromine-modified silicon dioxide particles;

(4) placing 10 parts of bromine-modified silica particles into 100 parts of methanol, then adding 35 parts of secondary modified guanidine salt, adding 0.5 part of cuprous bromide, 1 part of triethylamine and 1 part of ethyl 2-bromoisobutyrate under the protection of nitrogen, reacting for 7 hours at 50 ℃, centrifugally precipitating, washing, and drying for 10 hours in vacuum to obtain antibacterial silica particles;

(5) adding 1 percent of 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane and 10 percent of antibacterial silica particles by mass of the total mass of the silicon rubber into the silicon rubber containing the vinyl side group, uniformly mixing, then vulcanizing at 170 ℃ for 5 hours, cooling at room temperature, and preparing the antibacterial organic silicon material.

Example 4: the difference from the example 1 is that the antibacterial organosilicon material comprises the following preparation steps:

(1) dissolving 10 parts of polyhexamethylene guanidine hydrochloride in 60 parts of methanol, stirring and heating at 60 ℃ for 40min, then adding 45 parts of 4-hydroxybutyl glycidyl ether, carrying out heat preservation and stirring reaction for 40h, carrying out rotary steaming washing, and carrying out vacuum drying for 15h to prepare pre-modified guanidine salt;

(2) putting 10 parts of pre-modified guanidine salt into 50 parts of trichloromethane, then adding 0.05 part of stannous octoate and 0.3 part of p-methoxyphenol, dissolving at 40 ℃, then adding 40 parts of isocyanate ethyl acrylate, keeping the temperature and reacting for 5 hours, then carrying out rotary steaming washing, and carrying out vacuum drying for 15 hours to prepare secondary modified guanidine salt;

(3) immersing silicon dioxide into 3wt% of 3- (trimethoxysilylpropyl) -2-bromo-2-methylpropionate ethanol solution, and preserving the temperature for 10 hours at 30 ℃ to prepare bromine-modified silicon dioxide particles;

(4) placing 15 parts of bromine-modified silica particles into 120 parts of methanol, then adding 50 parts of secondary modified guanidine salt, adding 1 part of cuprous bromide, 2 parts of triethylamine and 2 parts of ethyl 2-bromoisobutyrate under the protection of nitrogen, reacting for 5 hours at 60 ℃, centrifugally precipitating, washing, and drying for 15 hours in vacuum to obtain antibacterial silica particles;

(5) 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane accounting for 2 percent of the total mass of the silicon rubber and antibacterial silicon dioxide granules accounting for 20 percent of the total mass of the silicon rubber are added into the silicon rubber containing vinyl side groups and are uniformly mixed, then the mixture is vulcanized for 3 hours at 190 ℃, and the mixture is cooled at room temperature to prepare the antibacterial organic silicon material.

Example 5: the difference from the example 1 is that the antibacterial organosilicon material comprises the following preparation steps:

(1) dissolving 10 parts of polyhexamethylene guanidine hydrochloride in 57 parts of methanol, stirring and heating at 50 ℃ for 60min, then adding 42 parts of 4-hydroxybutyl glycidyl ether, carrying out heat preservation, stirring and reaction for 30h, carrying out rotary steaming and washing, and carrying out vacuum drying for 12h to prepare pre-modified guanidine salt;

(2) placing 7 parts of pre-modified guanidine salt in 30 parts of trichloromethane, then adding 0.05 part of stannous octoate and 0.15 part of p-methoxyphenol, dissolving at 30 ℃, then adding 37 parts of isocyanate ethyl acrylate, keeping the temperature and reacting for 6 hours, then carrying out rotary steaming washing, and carrying out vacuum drying for 14 hours to prepare secondary modified guanidine salt;

(3) immersing silicon dioxide in 1 wt% of 3- (trimethoxysilylpropyl) -2-bromo-2-methylpropionate ethanol solution, and keeping the temperature at 27 ℃ for 10 hours to prepare bromine-modified silicon dioxide particles;

(4) placing 15 parts of bromine-modified silica particles into 100 parts of methanol, then adding 38 parts of secondary modified guanidine salt, adding 1 part of cuprous bromide, 1 part of triethylamine and 2 parts of ethyl 2-bromoisobutyrate under the protection of nitrogen, reacting for 7 hours at 56 ℃, centrifugally precipitating, washing, and drying for 15 hours in vacuum to obtain antibacterial silica particles;

(5) 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane accounting for 2 percent of the total mass of the silicon rubber and antibacterial silicon dioxide granules accounting for 12 percent of the total mass of the silicon rubber are added into the silicon rubber containing vinyl side groups and are uniformly mixed, then the mixture is vulcanized for 5 hours at the temperature of 170 ℃, and the mixture is cooled at room temperature to prepare the antibacterial organic silicon material.

Comparative example 1: the antibacterial organosilicon material comprises the following preparation steps: 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane accounting for 2 percent of the total mass of the silicon rubber and 8 percent of polyhexamethylene guanidine hydrochloride are added into the silicon rubber containing the vinyl side group and evenly mixed, then vulcanized for 4 hours at 180 ℃, cooled at room temperature, and then the antibacterial organic silicon material is prepared.

Comparative example 2: the antibacterial organosilicon material comprises the following preparation steps:

(1) dissolving 10 parts of polyhexamethylene guanidine hydrochloride in 55 parts of methanol, stirring and heating at 55 ℃ for 50min, then adding 40 parts of 4-hydroxybutyl glycidyl ether, carrying out heat preservation and stirring reaction for 35h, carrying out rotary steaming washing, and carrying out vacuum drying for 12h to prepare pre-modified guanidine salt;

(2) putting 8 parts of pre-modified guanidine salt into 40 parts of trichloromethane, then adding 0.03 part of stannous octoate and 0.2 part of p-methoxyphenol, dissolving at 35 ℃, then adding 35 parts of isocyanate ethyl acrylate, keeping the temperature, reacting for 7 hours, then carrying out rotary steaming washing, and carrying out vacuum drying for 13 hours to prepare secondary modified guanidine salt;

(3) adding 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane accounting for 1.5 percent of the total mass of the silicon rubber and secondary modified guanidine salt accounting for 8 percent of the total mass of the silicon rubber into the silicon rubber containing vinyl side groups, uniformly mixing, then vulcanizing at 180 ℃ for 4 hours, cooling at room temperature, and preparing the antibacterial organic silicon material.

Comparative example 3: the antibacterial organosilicon material comprises the following preparation steps:

(1) dissolving 10 parts of polyhexamethylene guanidine hydrochloride in 55 parts of methanol, stirring and heating at 55 ℃ for 50min, then adding 40 parts of 4-hydroxybutyl glycidyl ether, carrying out heat preservation and stirring reaction for 35h, carrying out rotary steaming washing, and carrying out vacuum drying for 12h to prepare pre-modified guanidine salt;

(2) placing 12 parts of silica particles into 110 parts of methanol, then adding 40 parts of pre-modified guanidine salt, adding 2 parts of isophorone diisocyanate under the protection of nitrogen, carrying out heat preservation reaction at 65 ℃ for 6 hours, carrying out centrifugal precipitation washing, and carrying out vacuum drying for 12 hours to prepare antibacterial silica particles;

(3) adding 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane accounting for 1.5 percent of the total mass of the silicon rubber and antibacterial silicon dioxide particles accounting for 15 percent of the total mass of the silicon rubber into the silicon rubber containing vinyl side groups, uniformly mixing, then vulcanizing at 180 ℃ for 4 hours, cooling at room temperature, and preparing the antibacterial organic silicon material.

The antibacterial organosilicon materials prepared in the examples and the comparative examples are tested for antibacterial performance and mechanical performance; the antibacterial performance is as reference to QBT2519-2003 and GB4789.2-2010, wherein the drawer is prepared by cutting antibacterial organosilicon material into sheets with thickness of 5mm, placing the sheets on a Soxhlet extractor, and extracting with ethanol at 80 deg.C for 48 h; the mechanical properties are referred to GB/T528-; the data are shown in the following figure.

According to the data, the antibacterial organic silicon material prepared in the embodiment of the invention has excellent antibacterial performance and mechanical performance, and compared with the embodiment 1, the comparative example 1 directly mixes the poly (hexamethylene guanidine) hydrochloride into the silicone rubber containing the vinyl side group, although the prepared organic silicon material also has excellent antibacterial performance, the antibacterial performance is greatly reduced after extraction, the antibacterial durability is poor, and the use after long-time storage is not facilitated. Compared with the example 1, the secondary modified guanidine salt is not grafted on silicon dioxide after being prepared and is directly mixed with the silicone rubber with vinyl side groups, so that the secondary modified guanidine salt can be grafted on the silicone rubber through double bonds, but the grafting mode destroys the crosslinking structure of the silicone rubber, and the tensile strength of the silicone rubber is poorer than that of the comparative example 1; compared with the example 1, the method does not adopt a polymerization grafting mode, the pre-modified guanidine salt is connected to the silicon dioxide by adopting diisocyanate, and then the silicon dioxide is mixed and vulcanized with the silicon rubber containing the vinyl side group, so that the antibacterial silicon dioxide particles prepared in the comparative example 3 have antibacterial property, but cannot be firmly combined with a silicon rubber molecular chain through a chemical bond, the antibacterial performance is obviously reduced after a drawer, meanwhile, the antibacterial silicon dioxide cannot form a three-dimensional cross-linked network with the silicon rubber, when external force is received, the stress of the whole system is uneven, and the tensile strength is poorer than that of the example 1 under the same addition amount of the antibacterial silicon dioxide.

The raw materials and equipment used in the invention are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (8)

1. An oral saliva sucking and removing device is characterized by comprising a saliva absorbing mechanism (1), a connecting block (2) and a negative pressure collecting device (4) which are sequentially connected through a drainage tube (3), wherein the saliva absorbing mechanism (1) is of a hollow structure and comprises a tongue pad (11) and a tooth occlusion groove (12), a lip attaching portion (13) is arranged at the front end of the tooth occlusion groove (12), a moisturizing film (131) is arranged on the surface of the lip attaching portion (13), the lip attaching portion (13) is communicated with the drainage tube (3), the tooth occlusion groove (12) comprises an upper tooth groove (121) and a lower tooth groove (122), liquid sucking holes (111) are formed in the bottom and the side edge of the tongue pad (11), and a buckle (44) is arranged on the side edge of the negative pressure collecting device (4);

the negative pressure collecting device (4) comprises a compression bag (41) and a liquid collecting bottle (42) which are connected with each other, and the drainage tube (3) penetrates through the compression bag (41) and extends into the liquid collecting bottle (42);

the top of compression bag (41) is equipped with air outlet assembly (43), air outlet assembly (43) are including last barrier body (431), lower barrier body (432) and air outlet ring (433), go up between barrier body (431) and the lower barrier body (432) through being connected with compression bag (41) bag wall sliding connection's spliced pole (434), the interior round bore of air outlet ring (433) is greater than lower barrier body (432) diameter, the excircle bore of air outlet ring (433) is less than last barrier body (431) diameter.

2. The oral saliva sucking and removing device is characterized in that the liquid collecting bottle (42) comprises a connecting section (421) and a liquid collecting section (422), and the bottom of the compression bag (41) is provided with a fixing groove (411) which is penetrated by the drainage tube (3) and is matched with the connecting section (421).

3. The oral saliva sucking device according to claim 2, wherein the connecting section (421) and the fixing groove (411) are rotatably connected by a screw.

4. The oral saliva sucking and removing device as claimed in claim 2, wherein the top of the fixing groove (411) is provided with a through hole (412), the through hole (412) is covered by an elastic blocking sheet (413), and one end of the elastic blocking sheet (413) is fixedly arranged at the top of the fixing groove (411) through a fixing nail (414).

5. An oral saliva suction device according to any of claims 1-4, wherein the connecting block (2) is provided with ear loops (21).

6. An oral saliva suction device according to any of claims 1-4, wherein the connecting block (2) is provided with a hook (22).

7. The oral saliva suction device according to claim 1, wherein the saliva absorbing mechanism is made of an antibacterial silicone material, and the antibacterial silicone material comprises the following steps:

(1) dissolving 10 parts of polyhexamethylene guanidine hydrochloride in 50-60 parts of methanol, stirring and heating at 50-60 ℃ for 40-60min, then adding 35-45 parts of 4-hydroxybutyl glycidyl ether, carrying out heat preservation stirring reaction for 30-40h, carrying out rotary evaporation washing, and carrying out vacuum drying for 10-15h to prepare pre-modified guanidine salt;

(2) placing 5-10 parts of pre-modified guanidine salt into 30-50 parts of trichloromethane, then adding 0.01-0.05 part of stannous octoate and 0.1-0.3 part of p-methoxyphenol, dissolving at 30-40 ℃, then adding 30-40 parts of isocyanate ethyl acrylate, keeping the temperature, reacting for 5-8h, then carrying out rotary steaming washing, and carrying out vacuum drying for 10-15h to prepare secondary modified guanidine salt;

(3) immersing silicon dioxide in 1-3wt% of 3- (trimethoxysilylpropyl) -2-bromo-2-methylpropionate ethanol solution, and preserving the temperature at 20-30 ℃ for 10-15h to prepare bromine modified silicon dioxide particles;

(4) placing 10-15 parts of bromine-modified silica particles into 100-120 parts of methanol, then adding 35-50 parts of secondary modified guanidine salt, adding 0.5-1 part of cuprous bromide, 1-2 parts of triethylamine and 1-2 parts of ethyl 2-bromoisobutyrate under the protection of nitrogen, carrying out heat preservation reaction at 50-60 ℃ for 5-7h, carrying out centrifugal precipitation washing, and carrying out vacuum drying for 10-15h to prepare antibacterial silica particles;

(5) adding 2, 5-dimethyl-2, 5-di (tert-butylperoxy) hexane and antibacterial silica particles into the silicon rubber containing vinyl side groups, uniformly mixing, vulcanizing at 170-190 ℃ for 3-5h, cooling at room temperature, and preparing the antibacterial organic silicon material.

8. The oral saliva suction device of claim 7, wherein the mass ratio of the silicone rubber containing vinyl side groups to the antimicrobial silica particles is 10: 1-2.

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