CN111388853A - Applicator for local treatment of oral mucosa - Google Patents
Applicator for local treatment of oral mucosa Download PDFInfo
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- CN111388853A CN111388853A CN202010371637.7A CN202010371637A CN111388853A CN 111388853 A CN111388853 A CN 111388853A CN 202010371637 A CN202010371637 A CN 202010371637A CN 111388853 A CN111388853 A CN 111388853A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
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- Anesthesiology (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention relates to an applicator for topical treatment of oral mucosa, comprising an applicator head, a piston rod, a piston head, a sealing cap, a first one-way valve, a second one-way valve and a third one-way valve. The medicine coating head is provided with a piston cavity, a medicine storage cavity and a medicine outlet hole. The first one-way valve is communicated with the medicine storage cavity and the piston cavity and opens towards the piston cavity in a one-way mode, the second one-way valve is communicated with the piston cavity and the medicine outlet hole and opens towards the medicine outlet hole in a one-way mode, and the medicine outlet hole is formed in one side of the medicine coating head. One end of the sealing cover is detachably connected with the medicine coating head and is hermetically connected with the medicine storage cavity, and the third one-way valve is arranged on the sealing cover and is opened towards the medicine storage cavity in one way. The piston head is arranged in the piston cavity, the sealing cover is provided with a piston rod hole corresponding to the position of the piston cavity, and the piston rod penetrates through the piston rod hole to be connected with the piston head. The invention can facilitate medical care personnel or patients to apply medicine to the oral mucosa lesion, is suitable for accurate positioning administration on the surface with complex shape of each part in the oral cavity, avoids the fingers from contacting the medicine, is quick, simple, convenient and sanitary, and improves the medicine application efficiency and the medicine application feeling.
Description
The technical field is as follows:
the invention relates to an applicator in a treatment process, in particular to an applicator in an oral cavity local treatment process.
Background art:
oral ulcers, erosions, pimples and plaques are a series of common lesions occurring in oral mucosa, the treatment process usually needs to apply medicines to the oral lesions, and corresponding medicine applying tools are lacked at present. The application of the medicine by hand can cause fingers to be stained with ointment or gel medicine and saliva, so that the medicine is not sanitary on one hand, the medicine is wasted on the other hand, and the treatment feeling is not good on the other hand. If the cotton swab is used for coating, the medicine is more wasted due to the fact that the cotton wool is adhered with the medicine, the amount of the medicine actually distributed on the surface of a lesion is extremely limited, the medicine is not uniformly distributed and easily falls off, and a good treatment effect is difficult to obtain.
The invention content is as follows:
according to the characteristic that the surface forms of all parts in the oral cavity are complex, in order to conveniently and accurately position and uniformly coat the oral mucosa lesions, the invention provides an applicator for the local treatment of the oral mucosa, which comprises an applicator head, a piston rod, a piston head, a sealing cover, a first one-way valve, a second one-way valve and a third one-way valve, wherein the applicator head is connected with the piston rod; the medicine coating head is provided with a piston cavity, a medicine storage cavity and a medicine outlet hole; the first one-way valve is communicated with the medicine storage cavity and the piston cavity and is opened towards the piston cavity in one way; the second one-way valve is communicated with the piston cavity and the medicine outlet hole and is opened towards the medicine outlet hole in one way, and the medicine outlet hole is formed in one side of the medicine coating head; one end of the sealing cover is detachably connected with the medicine coating head and is hermetically connected with the medicine storage cavity; the third one-way valve is arranged on the sealing cover and is opened towards the medicine storage cavity in one way; the piston head is arranged in the piston cavity, the sealing cover is provided with a piston rod hole corresponding to the position of the piston cavity, and the piston rod penetrates through the piston rod hole to be connected with the piston head.
Furthermore, the piston cavity is arranged at the center of the medicine coating head, and the medicine storage cavity surrounds the periphery of the piston cavity.
Further, the piston cavity is provided with a conical surface; the sealing cover is provided with an outer sealing gasket and an inner sealing gasket, the outer sealing gasket is matched and sealed with the medicine storage cavity, and the inner sealing gasket is matched and sealed with the conical surface of the piston cavity.
Furthermore, one end of the piston head, which is connected with the piston rod, forms a first limit surface; the piston rod hole is smaller than the cross section of the piston head, and a second limiting surface corresponding to the first limiting surface is formed; the stroke of the piston rod is limited by the limitation of the second limit surface to the first limit surface.
Further, the first check valve, the second check valve or the third check valve comprises a valve body and a valve core; the valve core is an elastic sealing gasket; the valve body is provided with a valve core groove matched with the profile of the valve core, the bottom surface of the groove is provided with a connecting part and a circulation hole, the valve core is arranged in the valve core groove and is hermetically attached to the groove bottom of the groove and the circulation hole through the connecting part, and the valve core generates elastic deformation under the action of fluid to open the circulation hole.
Furthermore, the connecting part is arranged at the center of the valve core groove and consists of a connecting column and a hemispherical limiting block arranged at the upper end of the connecting column, the diameter of the connecting column is smaller than the spherical surface diameter of the hemispherical limiting block, and the height of the connecting column is matched with the thickness of the valve core; the center of the valve core is provided with a mounting hole, and the valve core is connected to the connecting part through elastic deformation of the mounting hole.
Further, still including scribbling the cartridge case, scribble cartridge case one end and can dismantle the sealed lid of connection, the other end is equipped with the air vent and is being equipped with the guiding hole corresponding to piston chamber position, and the piston rod passes the guiding hole and stretches out outside scribbling the cartridge case.
Further, the cross section of the piston head is non-circular, and the piston cavity is matched with the piston head; a first handheld part is arranged on the outer side of the other end of the medicine coating barrel, and a second handheld part is arranged at the end part of the piston rod extending out of the medicine coating barrel; the piston head is moved within the piston chamber by cooperating the first and second hand grips.
Furthermore, the second handheld part is provided with a direction indication of the position of the medicine outlet.
Furthermore, the first handheld part is a groove which surrounds the medicine coating barrel for a circle and is convenient for fingers to clamp; the second holding part is a circular ring which is convenient for fingers to buckle in.
According to the invention, the medicine is placed in the medicine storage cavity, the piston rod can suck the medicine in the medicine storage cavity into the piston cavity through the first one-way valve in the telescopic process, the medicine is extruded out from the medicine outlet through the second one-way valve, and meanwhile, air is sucked into the medicine storage cavity through the third one-way valve, so that medical personnel or patients can conveniently coat the medicine on the oral mucosa.
The piston rod of the invention has fixed stroke due to the limitation of the first and second limiting surfaces, and the medicine sucked and extruded in each expansion and contraction process is quantitative, thereby being convenient for medical personnel to master the medicine output amount.
The medicine outlet holes are distributed on one side of the medicine coating barrel, so that the medicine is discharged from one side, the medicine coating process is convenient for medical staff or patients to operate, the medicine can be intensively administered at a lesion part, and the medicine waste caused by extruding the medicine in multiple directions is avoided. Meanwhile, the direction indicator is arranged, so that medical staff or patients can clearly know the position of the medicine outlet hole, the medicine outlet hole is suitable for the surface with complex shape of each part in the oral cavity, accurate positioning and uniform medicine coating are facilitated, and the medicine coating efficiency and effect are improved. The invention has the advantages of quick and simple operation, avoids the contact of the finger skin with the medicine and improves the medicine application feeling of the patient.
The second handheld part is arranged in a circular ring shape, so that the piston rod can be conveniently stretched by one hand.
Through the first handheld portion around scribbling a medicine section of thick bamboo round, make things convenient for medical personnel or patient oneself to scribble the handheld angle of transform of medicine in-process, convenient operation.
Description of the drawings:
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic view of a first check valve body according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first check valve cartridge in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a first check valve according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a second embodiment of the present invention;
FIG. 6 is a third schematic view of the present invention;
FIG. 7 is a schematic illustration of a third cross-sectional view of an embodiment of the present invention;
FIG. 8 is a fourth schematic view of the present invention;
FIG. 9 is a fifth schematic view of an embodiment of the present invention;
in the figure: 1-coating cartridge, 11-reinforcing plate, 111-vent hole, 13-third one-way valve, 14-first hand-held part, 15-guide hole, 2-coating head, 21-piston cavity, 211-conical surface, 22-medicine storage cavity, 23-medicine outlet hole, 24-first one-way valve, 241-valve body, 2411-valve core groove, 2412-connecting part and 24121-connecting column, 24122-a limiting block, 2413-a flow hole, 242-a valve core, 2421-a mounting hole, 25-a second one-way valve, 26-a second limiting surface, 31-a piston head, 32-a piston rod, 321-a second handheld part, 3211-direction indication, 33-a first limiting surface, 5-a sealing cover, 51-an inner sealing gasket, 52-an outer sealing gasket and 53-a piston rod hole.
The specific implementation mode is as follows:
the first embodiment is as follows:
as shown in FIG. 1, the applicator of this embodiment comprises an applicator head 2, a piston rod 32, a piston head 31, a sealing cap 5, a first one-way valve 24, a second one-way valve 25 and a third one-way valve 13.
As shown in fig. 2-4, wherein the first, second, and third check valves 24, 25, 13 are similar in mechanism, each includes a valve body 241 and a valve spool 242. The valve body 241 is made of a hard material (e.g., PVC), and the valve body 242 is a packing made of an elastic material (e.g., rubber). The valve body 241 is provided with a spool groove 2411 matching with the profile of the spool 242, and the bottom surface of the groove is provided with a connecting part 2412 and a flow hole 2413. The connecting portion 2412 is disposed at the center of the bottom of the valve core groove 2411, and is composed of a connecting column 24121 and a hemispherical stopper 24122 disposed at the upper end of the connecting column 24121, and the diameter of the connecting column 24121 is smaller than the spherical surface diameter of the hemispherical stopper 24122. The center of the valve core 242 is provided with a mounting hole 2421, the valve core 242 penetrates through the limiting block 24122 through the elastic deformation of the mounting hole 2421 and is connected to the connecting column 24121, the height of the connecting column 24121 is matched with the thickness of the valve core 242, so that the valve core 242 is stably placed in the valve core groove 2411 and is tightly attached to the bottom of the valve core groove 2411 and the circulation hole 2413 through the connecting part 2412.
When the pressures on the two sides of the valve core 242 are equivalent, the valve core 242 enables the one-way valve to be in a closed state under the action of the self elastic force; when the pressure of the spool 242 is higher than that of the side of the limit block 24122, the spool 242 cannot be opened to the side of the flow hole 2413 due to the blocking of the spool groove 2411, and the one-way valve is in a closed state; when the pressure of the valve core 242 is relatively high at the side of the flow hole 2413, the valve core 242 tilts toward the stopper 24122 and elastically deforms, so that the flow hole 2413 is opened.
The middle position in the medicine applying head 2 is provided with a piston cavity 21 for accommodating a piston head 31, a medicine storage cavity 22 surrounding the piston cavity 21 for accommodating required medicines, and the wall of the medicine applying head 2 is provided with a plurality of medicine outlet holes 23 for extruding the medicines. The first one-way valve 24 is arranged on the wall of the piston cavity 21, communicates the medicine storage cavity 22 and the piston cavity 21 and opens towards the piston cavity 21 in one way. The second one-way valve 25 is arranged on the wall of the piston cavity 21 on the other side opposite to the first one-way valve 24, communicates the piston cavity 21 with the medicine outlet hole 23 and opens towards the medicine outlet hole 23 in one way.
One end of the sealing cover 5 is provided with a thread, and the sealing cover is detachably connected to the medicine coating head 2 through the thread and is in sealing connection with the medicine storage cavity 22. An outer sealing gasket 52 and an inner sealing gasket 51 are arranged on the sealing cover 5, the outer sealing gasket 52 is used for sealing the cavity wall of the medicine storage cavity 22, and the inner sealing gasket 51 is used for connecting the cavity wall of the piston cavity 21 to seal the medicine storage cavity 22. Because the sealing cover 5 needs to have two seals with the medicine applying head 2, the piston cavity 21 is provided with a conical surface 211 for this purpose, and the middle part of the corresponding inner sealing gasket 51 is a conical hole for matching and sealing with the conical surface 211. The inner seal gasket 51 does not interfere with the seal of the outer seal gasket 52 by the tapered surface 211 and the tapered hole during the tightening of the seal cap 5. The third one-way valve 13 is arranged on the sealing cover 5 and is opened towards the medicine storage cavity 22 in one way.
The piston head 31 is arranged in the piston cavity 21, and a sealing ring can be arranged on the outer periphery side of the piston head 31 in order to enhance the air tightness between the piston head 31 and the piston cavity 21. The sealing cover 5 is provided with a piston rod hole 53 corresponding to the position of the piston cavity 21, the piston rod 32 penetrates through the piston rod hole 53 to be connected with the piston head 31, and the piston head 31 can also pass through the piston rod hole 53, so that the disassembly and the assembly are convenient.
When the applicator is used, the piston rod 32 and the piston head 31 are firstly drawn out, then the sealing cover 5 is unscrewed, the medicine is filled in the medicine storage cavity 22, and the components are installed and reset after the medicine storage cavity is completed, so that the piston cavity 21 and the medicine storage cavity 22 form a closed space. By pulling the piston rod 32, the piston head 31 is moved backwards, so that the pressure in the piston chamber 21 is reduced, the second check valve 25 is closed and the first check valve 24 is opened, and the medicine is sucked into the piston chamber 21 from the first check valve 24. Then the piston rod 32 is pushed forward to drive the piston head 31 to move forward, at this time, the pressure in the piston cavity 21 is increased, the first one-way valve 24 is closed, the second one-way valve 25 is opened, the medicine is extruded from the medicine outlet hole 23, and then the medicine can be applied to the oral cavity of the patient through the medicine applicator. When the medicine in the medicine storage cavity 22 is reduced to a certain amount, the third one-way valve 13 sucks the outside air, so that the pressure in the medicine storage cavity 22 is always kept near the outside level, and the situation that the medicine is not extracted due to too low pressure in the medicine storage cavity 22 is prevented.
Example two:
as shown in fig. 5, the present embodiment is different from the first embodiment in that one end of the piston head 31 connected to the piston rod 32 forms a first limiting surface 33, the piston rod hole 53 is smaller than the cross section of the piston head 31, so that the piston head 31 cannot be drawn out from the piston rod hole 53, a second limiting surface 26 corresponding to the first limiting surface 33 is formed, and the stroke of the piston head 31 is limited by the second limiting surface 26 to the first limiting surface 33.
If the medicine is to be quantitatively applied, the stroke of the piston head 31 can be used for quantitative extrusion, so that medical personnel can conveniently master the medicine amount.
Of course, this embodiment requires removing the sealing cap 5 before the piston head 31 and the piston rod 32 can be withdrawn.
Example three:
as shown in fig. 6, in this embodiment, based on the above embodiment, a coating cartridge 1 is further provided, and one end of the coating cartridge is detachably connected to a sealing cover 5 through a screw thread. The other end of the coating cartridge 1 is provided with a reinforcing plate 11, a guide hole 15 is arranged at the position of the reinforcing plate 11 corresponding to the piston cavity 21, and a vent hole 111 is arranged around the guide hole. The reinforcing plate 11 can keep the medicine applying barrel 1 in a stable cylindrical structure, and can guide the piston rod 32 through the guide hole 15 arranged on the medicine applying barrel, so that the moving process is smooth. The vent hole 111 is used for the third one-way valve 13 to draw sufficient air from within the applicator cartridge. Of course, the diameter of the guide hole 15 corresponding to the first embodiment is enough to allow the piston head 31 to be withdrawn.
In order to facilitate the holding of the applicator, the applicator cylinder 1 is further provided with a first handheld portion 14, that is, two extending structures symmetrically arranged at the end of the applicator cylinder 1, the piston rod 32 is correspondingly provided with a second handheld portion 321, and the extending structures of the piston rod 32 are matched with the first handheld portion 14 and the second handheld portion 321 to push and pull the piston rod, so that the medical staff can complete the application operation with one hand.
As shown in fig. 7, since the first grip portion 14 and the guide hole 15 are provided in this embodiment, the sealing cover 5 is not easily attached and detached, and the piston head 31 of this embodiment is screwed to the piston rod 32. In order to prevent the piston head 31 from following when the piston head 31 and the piston rod 32 are assembled and disassembled, the cross section of the piston head 31 is selected to be non-circular, such as square, of course, the cross section of the piston cavity 21 is also square, and is matched with the piston head 31. The applicator cartridge 1 and the seal cap 5 are removed by unscrewing the piston rod 32.
Example four:
as shown in fig. 8, in the present embodiment, in addition to the third embodiment, a direction indicator 3211 is provided at the position of the second holding portion 321, and the direction indicator 3211 is a concave arrow for indicating the position of the medicine outlet 23.
Example five:
as shown in fig. 9, in this embodiment, in addition to the third embodiment, the first holding portion 14 is arranged as a groove surrounding the coating cartridge 1 for one circle, the second holding portion 321 is a ring, the axis of the ring of the second holding portion 321 is perpendicular to the moving direction of the piston rod 32, when the piston rod 32 is operated, the forefinger and the middle finger grip the groove, and the thumb pushes the piston rod 32 to expel the medicine by buckling into the ring. Because scribble cartridge case 1 a week and all can hand, make things convenient for medical personnel or patient oneself to adjust handheld posture according to actual need to adapt to the complicated surface of each position form in the oral cavity, conveniently scribble the medicine operation.
Claims (10)
1. An applicator for topical treatment of oral mucosa, characterized by: comprises a medicine applying head, a piston rod, a piston head, a sealing cover, a first one-way valve, a second one-way valve and a third one-way valve; the medicine coating head is provided with a piston cavity, a medicine storage cavity and a medicine outlet hole; the first one-way valve is communicated with the medicine storage cavity and the piston cavity and is opened towards the piston cavity in one way; the second one-way valve is communicated with the piston cavity and the medicine outlet hole and is opened towards the medicine outlet hole in one way, and the medicine outlet hole is formed in one side of the medicine coating head; one end of the sealing cover is detachably connected with the medicine coating head and is hermetically connected with the medicine storage cavity; the third one-way valve is arranged on the sealing cover and is opened towards the medicine storage cavity in one way; the piston head is arranged in the piston cavity, the sealing cover is provided with a piston rod hole corresponding to the position of the piston cavity, and the piston rod penetrates through the piston rod hole to be connected with the piston head.
2. An applicator for topical treatment of the oral mucosa according to claim 1, wherein: the piston cavity is arranged at the center of the medicine coating head, and the medicine storage cavity surrounds the periphery of the piston cavity.
3. An applicator for topical treatment of the oral mucosa according to claim 2, wherein: the piston cavity is provided with a conical surface; the sealing cover is provided with an outer sealing gasket and an inner sealing gasket, the outer sealing gasket is matched and sealed with the medicine storage cavity, and the inner sealing gasket is matched and sealed with the conical surface of the piston cavity.
4. An applicator for topical treatment of the oral mucosa according to claim 3, wherein: one end of the piston head, which is connected with the piston rod, forms a first limiting surface; the piston rod hole is smaller than the cross section of the piston head, and a second limiting surface corresponding to the first limiting surface is formed; the stroke of the piston rod is limited by the limitation of the second limit surface to the first limit surface.
5. An applicator for topical treatment of the oral mucosa according to claim 4, wherein: the first one-way valve, the second one-way valve or the third one-way valve comprise valve bodies and valve cores; the valve core is an elastic sealing gasket; the valve body is provided with a valve core groove matched with the profile of the valve core, the bottom surface of the groove is provided with a connecting part and a circulation hole, the valve core is arranged in the valve core groove and is hermetically attached to the groove bottom of the groove and the circulation hole through the connecting part, and the valve core generates elastic deformation under the action of fluid to open the circulation hole.
6. An applicator for topical treatment of the oral mucosa according to claim 5, wherein: the connecting part is arranged in the center of the valve core groove and consists of a connecting column and a hemispherical limiting block arranged at the upper end of the connecting column, the diameter of the connecting column is smaller than the spherical surface diameter of the hemispherical limiting block, and the height of the connecting column is matched with the thickness of the valve core; the center of the valve core is provided with a mounting hole, and the valve core is connected to the connecting part through elastic deformation of the mounting hole.
7. An applicator for topical treatment of the oral mucosa according to any one of claims 1 to 6, wherein: still including scribbling the cartridge case, scribble cartridge case one end and can dismantle the connection sealed lid, the other end is equipped with the air vent and is being equipped with the guiding hole corresponding to piston chamber position, and the piston rod passes the guiding hole and stretches out outside scribbling the cartridge case.
8. An applicator for topical treatment of the oral mucosa according to claim 7, wherein: the cross section of the piston head is non-circular, and the piston cavity is matched with the piston head; a first handheld part is arranged on the outer side of the other end of the medicine coating barrel, and a second handheld part is arranged at the end part of the piston rod extending out of the medicine coating barrel; the piston head is moved within the piston chamber by cooperating the first and second hand grips.
9. An applicator for topical treatment of the oral mucosa according to claim 8, wherein: the second handheld part is provided with a direction indication of the position of the medicine outlet.
10. An applicator for topical treatment of the oral mucosa according to claim 8, wherein: the first handheld part is a groove which surrounds the medicine coating barrel for a circle and is convenient for fingers to clamp; the second holding part is a circular ring which is convenient for fingers to buckle in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371637.7A CN111388853A (en) | 2020-05-06 | 2020-05-06 | Applicator for local treatment of oral mucosa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371637.7A CN111388853A (en) | 2020-05-06 | 2020-05-06 | Applicator for local treatment of oral mucosa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111388853A true CN111388853A (en) | 2020-07-10 |
Family
ID=71412560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010371637.7A Pending CN111388853A (en) | 2020-05-06 | 2020-05-06 | Applicator for local treatment of oral mucosa |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111388853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730775A (en) * | 2021-09-14 | 2021-12-03 | 北京大学第三医院（北京大学第三临床医学院） | Auxiliary applicator for oral cavity |
-
2020
- 2020-05-06 CN CN202010371637.7A patent/CN111388853A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730775A (en) * | 2021-09-14 | 2021-12-03 | 北京大学第三医院（北京大学第三临床医学院） | Auxiliary applicator for oral cavity |
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