CN117860183B - Oral cavity auxiliary opening mechanism and local drug delivery device - Google Patents

Oral cavity auxiliary opening mechanism and local drug delivery device Download PDF

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Publication number
CN117860183B
CN117860183B CN202410206451.4A CN202410206451A CN117860183B CN 117860183 B CN117860183 B CN 117860183B CN 202410206451 A CN202410206451 A CN 202410206451A CN 117860183 B CN117860183 B CN 117860183B
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sliding
clamping
block
handle body
opening
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CN117860183A (en
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王威
张�杰
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Peking University School of Stomatology
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Peking University School of Stomatology
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • 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
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0625—Mouth

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dentistry (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biophysics (AREA)
  • Epidemiology (AREA)
  • Physics & Mathematics (AREA)
  • Hematology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Anesthesiology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

The invention provides an oral cavity auxiliary opening mechanism and a local drug delivery device, and belongs to the technical field of oral cavity medical equipment devices. The mechanism comprises an outer handle assembly, an engagement assembly, an opening and closing locking assembly, a medicine rack component and an outer locking component, wherein a son handle body and a mother handle body are connected in a rotary manner to form a crisscross structure, and a mechanism formed by elastic sliding connection of a lower engagement block and an upper engagement block can form an opening size adjustment along with the synchronous opening and closing actions of the son handle body and the mother handle body; the lower occlusion block in the elastic opening state can be kept and stopped in the adjusted state by the sliding and clamping fit of the tooth surface structure formed by the external connecting sliding plate and the external guiding sliding plate, and on the basis, the lower occlusion block can stay in the opening state stably under the double action by the fit of hexagonal insertion into the hexagonal groove and the elastic clamping fit of the clamping column and the side clamping hole; by the combined action of the medicine rack component and the outer clamping and locking component, the accurate local medicine feeding structure can be increased on the basis of not affecting the inspection operation.

Description

Oral cavity auxiliary opening mechanism and local drug delivery device
Technical Field
The invention relates to the technical field of oral medical equipment, in particular to an oral auxiliary opening mechanism and a local drug delivery device.
Background
The examination operation of stomatology requires that the oral cavity of a patient be in a stable open state, and the patient cannot keep the oral cavity open state continuously and stably by himself or herself due to psychological or other reasons, so that a special oral cavity opening device is needed.
The existing oral cavity opening device is based on a clamp type surgical instrument, when the device is used, medical staff is required to stretch into holes at the tail ends of the clamp bodies, the tail ends of the clamp bodies are operated by hand force to achieve the purpose of opening the oral cavity of a patient, the workload of the medical staff can be increased by the traditional operation mode, stable support of the oral cavity of the patient can not be achieved, and when the hand force of the medical staff is insufficient, the opening angle of the oral cavity of the patient can be changed, discomfort can be caused to the patient, and the examination of the oral cavity can be affected.
Disclosure of Invention
The invention aims to provide an auxiliary oral cavity expanding mechanism which can be used for stably stopping a lower occlusion block at any expanded position by utilizing synchronous cooperation of the occlusion component and the outer handle component in the expanding process and double locking of linkage of a locking component and an opening and closing locking component on the basis of the outer handle component.
The invention aims at realizing the technical scheme that the auxiliary opening mechanism for the oral cavity comprises an outer handle assembly, an occluding assembly, an opening and closing locking assembly and a locking assembly, wherein the outer handle assembly comprises a main handle body and a sub handle body, the occluding assembly comprises an upper occluding block and a lower occluding block, the opening and closing locking assembly comprises an outer guide sliding block and a positioning locking tooth, and the locking assembly comprises a hexagonal groove and a locking column;
The middle rear end of the main handle body is in cross spin connection with the middle rear end of the sub handle body, the upper engaging block is fixedly connected to the inner side of the front end of the main handle body, the lower engaging block is in downward spring sliding connection with the right lower side of the upper engaging block, the lower sliding column is in sliding connection with the front end of the sub handle body, the outer side of the lower sliding column is connected with an external connecting sliding plate, the other end of the external connecting sliding plate is provided with an external sliding groove, the inner face of the external sliding groove is provided with positioning sliding teeth, the external guiding sliding block is fixed to the outer side of the front end of the sub handle body, the positioning clamping teeth are arranged on one side of the external guiding sliding block, the external guiding sliding block is in the external sliding groove in a sliding connection mode, the front end of the sub handle body is also in outward spring sliding connection with a hexagonal side sliding block, one side of the hexagonal side sliding block is connected with a side elastic sheet, the outer side surface of the external connecting sliding plate is uniformly provided with an array side clamping hole, and when the hexagonal side elastic clamping tooth is arranged in the hexagonal side clamping groove, and the elastic clamping tooth can be inserted into any one side clamping hole.
The technical scheme of the invention comprises the following using processes:
when the toothbrush is not in use, the main handle body and the sub handle body are positioned at the closed position, and the lower occlusion block and the upper occlusion block are also positioned at the closed state, so that the lower occlusion block and the upper occlusion block can be conveniently placed into the oral cavity of a patient;
after the patient bites the upper bitten block and the lower bitten block, medical staff can control the opening and closing angles of the main handle body and the sub handle body at one side of the oral cavity, so that the opening distance of the lower bitten block relative to the upper bitten block can be controlled;
The rotary joint part of the sub-handle body and the main handle body is positioned at one side of the lower occlusion block and the upper occlusion block, and the openings of the main handle body and the sub-handle body are opposite to the lower occlusion block and the upper occlusion block, so that the main handle body and the sub-handle body can increase the operation convenience on the basis of not interfering with the oral examination;
in the process of opening the lower occlusion block relative to the upper occlusion block, the outer connecting sliding plate and the outer guide sliding block form sliding connection, so that the stability of the lower occlusion block relative to the upper occlusion block in the opening process can be improved;
the positioning latch on one side of the outer guide sliding block is matched with the sliding latch formed by the positioning slide teeth on the inner surface of the outer sliding groove, so that the positioning latch can be clamped at any position of the positioning slide teeth, and the lower sliding block in an elastic opening state is driven to stay at an opened position relative to the upper sliding block through sliding connection matching formed by the lower sliding column and the lower sliding groove and rotary connection matching formed by the lower sliding column and the lower sliding block;
The lower occlusion block and the upper occlusion block which are stably opened form a supporting work for the oral cavity of a patient;
After the outer connecting sliding plate moves to the adjusted position relative to the outer guide sliding block, the elastic ejection hexagonal grooves are pressed, the clamping columns connected to one side of the side elastic sheets are clamped into the opposite side clamping holes, and on the basis that the positioning clamping teeth are matched with the positioning sliding teeth in a sliding and clamping mode, the stability of position locking of the outer connecting sliding plate after the outer connecting sliding plate moves to the position relative to the outer guide sliding block is improved again through elastic clamping of the clamping columns and the side clamping holes.
It is another object of the present invention to provide a topical drug delivery device that increases the positioning support for topical drug delivery without interfering with the oral examination space by the cooperation of the drug carrier member and the outer locking member in combination with the outer handle assembly body.
Another object of the present invention is achieved by such a solution, wherein a topical drug delivery device further comprises a drug rack member and an outer lock member;
The medicine rack member comprises a clamping seat, a clamping position fixing plate, an arc-shaped elastic sheet and a clamping position shaft, one end of an inner rotating rod is rotationally connected in the opening and closing shaft, the other end of the inner rotating rod is slidably connected with an outer sliding rod, the side surface of the other end of the outer sliding rod is fixedly provided with a spherical seat, the spherical seat is matched and connected with a spherical rotating seat, the clamping seat is fixedly connected to the outer end of the spherical rotating seat, the spherical rotating seat is matched with the spherical seat in a spherical clamping manner through the spherical rotating seat, the spherical rotating seat can be adjusted at any angle within the control range of the spherical seat, and after a medicine feeding spoon or a medicine feeding device is clamped in the clamping seat, the medicine feeding spoon or the medicine feeding device can be accurately fed into a local affected part in an oral cavity;
The clamping fixing plate is fixedly connected to one side of the front end of the female handle body, the arc-shaped elastic sheet is fixedly connected to the bottom side of the outer end of the clamping fixing plate, and the clamping shaft is fixedly connected to the middle position of the outer side face of the arc-shaped elastic sheet;
The other end of the inner rotating rod is provided with a telescopic sliding groove, the inner surface of the telescopic sliding groove is provided with telescopic sliding teeth, the bottom surface of the outer sliding rod is fixedly provided with a telescopic sliding block, one side of the telescopic sliding block is provided with a telescopic clamping tooth, the telescopic sliding block and the telescopic sliding groove form sliding connection fit, and the telescopic clamping tooth and the telescopic sliding tooth form elastic sliding clamping fit;
The arc-shaped elastic sheet is stirred to generate elastic deformation, so that the purpose that the clamping shaft is separated from the blind hole formed in the outer sliding rod can be achieved;
The outer clamping lock component comprises a connecting upright post, a clamping bottom fixing plate, an outer clamping lock block and an outer clamping lock hole, wherein the connecting upright post is fixedly connected to the outer side of one end of the outer connecting sliding plate;
an outer locking hole is formed in the main body of the outer locking block, an outer locking column is fixed on the outer side face of the other end of the outer sliding rod, and the outer locking column is coaxially opposite to a blind hole formed in the inner side face of the other end of the outer sliding rod;
And after the sub-handle body is opened and closed to a certain angle relative to the main handle body and the lower occlusion block is driven to be opened and closed to a certain distance relative to the upper occlusion block, the outer sliding rod and the inner rotating rod in the use state can be in a state of being connected with the outer locking block through the elastic insertion of the outer locking hole formed in the outer locking block into the outer locking column, so that the clamping seat is in a stable position relative to the opened sub-handle body, and the drug administration spoon or the drug administration device can be clamped into the clamping seat more conveniently for use.
By adopting the scheme, the invention has the following beneficial effects:
(1) According to the invention, the mother handle body and the son handle body with the crisscross structure are used as the basis, the occluding component for supporting the opening and closing of the oral cavity of a patient is arranged at the front ends of the mother handle body and the son handle body, the opening and closing angle of the son handle body and the mother handle body is controlled at one side outside the oral cavity, the opening distance of the lower occluding block relative to the upper occluding block can be adjusted, and when the opening distance of the lower occluding block relative to the upper occluding block is adjusted through the mother handle body and the son handle body, shielding can not be caused for medical staff to observe the realization of the oral cavity all the time, the adjustment is convenient, and meanwhile, the invention has the characteristics of strong practicability;
(2) On the basis of the outer handle assembly and the occluding assembly, the lower occluding block and the upper occluding block cannot stay at the spread position, in order to enable the lower occluding block to stay at the adjusted position relative to the upper occluding block, the invention is provided with the opening and closing locking assembly between the lower sliding column and the sub handle body, and the opening and closing action of the sub handle body and the main handle body can drive the lower occluding block to form the spread action relative to the upper occluding block through the sliding fit of the lower sliding column in the lower sliding chute and the rotating connection fit formed by the lower sliding column and the lower occluding block, on the one hand, the lower sliding column can drive the outer connecting sliding plate and the outer guiding sliding block to form the sliding fit, and the lower occluding block can be kept at the spread position through the sliding fit formed by the positioning sliding teeth and the positioning clamping teeth, so that the position of the lower occluding block after being spread is adjusted stays, and the oral cavity of a patient is supported;
(3) The locking assembly is further arranged on the basis of the opening and closing locking assembly, the position limiting effect of the sliding clamp formed by the positioning clamping teeth and the positioning sliding teeth on the lower interlocking block after being opened is limited, and when the positioning clamping teeth and the positioning sliding teeth are matched and slipped off, the supporting state of the lower interlocking block is possibly invalid, so that after the position of the external connecting sliding plate relative to the external guiding sliding block is adjusted, the hexagonal in the elastic ejection state is inserted into the hexagonal groove, the clamping column is clamped into the opposite side clamping hole, and the position adjusting state of the external connecting sliding plate relative to the external guiding sliding block can be further stabilized, so that the stability of the lower interlocking block in the opened state is improved through the combined action of the opening and closing locking assembly and the locking assembly.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of an oral cavity auxiliary opening mechanism and a local drug delivery device provided by the invention;
FIG. 2 is a schematic view of the outer handle assembly of the present invention;
FIG. 3 is a schematic view of the structure of the snap-in assembly of the present invention;
FIG. 4 is a schematic view of an opening and closing latch assembly according to the present invention;
FIG. 5 is a schematic view of an exploded view of the latch assembly of the present invention;
FIG. 6 is a schematic view of a locking assembly of the present invention;
FIG. 7 is a schematic view of a connection structure of a clip portion according to the present invention;
FIG. 8 is a schematic view of a side spring part of the present invention;
FIG. 9 is a schematic view of the construction of the drug carrier member of the present invention;
FIG. 10 is a schematic view of an exploded construction of a drug carrier member of the present invention;
FIG. 11 is a schematic view of the structure of the outer lock member of the present invention from a first perspective;
FIG. 12 is a schematic view of the structure of the outer latch member of the present invention from a second perspective.
Reference numerals: 1. an outer handle assembly; 2. a snap assembly; 3. an opening and closing latch assembly; 4. a locking assembly; 5. a drug rack member; 6. an outer snap lock member; 101. a female handle body; 102. opening and closing the rotary hole; 103. an opening and closing shaft; 104. a through groove; 105. a sub-handle body; 201. fixing the shaft; 202. an upper bite block; 203. an upper fixing block; 204. an opening and closing guide shaft; 205. a bottom connecting plate; 206. a lower bite block; 207. a lower slide column; 208. a lower chute; 209. a lower slide block; 210. a pressure spring; 301. an outer fixed shaft; 302. the outer connecting slide plate; 303. an outer chute; 304. an outer guide slide block; 305. positioning sliding teeth; 306. positioning latch teeth; 401. a side slide; 402. a side guide bar; 403. a connecting transverse plate; 404. a hexagonal shape; 405. a hexagonal groove; 406. a lock spring; 407. a limit sleeve; 408. a side clamping hole; 409. a side spring plate; 410. a clamping column; 411. connecting the vertical plates; 412. an outer handle; 501. an inner rotating rod; 502. an outer slide bar; 503. a spherical seat; 504. spherical rotary seat; 505. a clamping seat; 506. a clamping and fixing plate; 507. an arc-shaped elastic sheet; 508. a clamping shaft; 509. a telescopic chute; 510. a telescopic slide block; 511. telescopic sliding teeth; 512. telescoping latch teeth; 601. connecting the upright posts; 602. a bottom fixing plate is clamped by a spring; 603. a V-shaped spring plate; 604. an outer clip locking piece; 605. an outer locking hole; 606. an outer latch post.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-12, in an oral cavity auxiliary opening mechanism and a local drug delivery device, the middle rear end of a main handle body 101 in an outer handle assembly 1 is in cross screwed connection with the middle rear end of a sub handle body 105, an upper engaging block 202 is fixedly connected to the inner side of the front end of the main handle body 101, a lower engaging block 206 is elastically and slidingly connected under the upper engaging block 202, a lower sliding column 207 is transversely and rotationally connected to the outer side of the lower engaging block 206, the lower sliding column 207 is slidingly connected to the front end of the sub handle body 105, an outer connecting sliding plate 302 is fixedly connected to the outer side of the lower sliding column 207, an outer sliding groove 303 is formed at the other end of the outer connecting sliding plate 302, a positioning sliding tooth 305 is formed in the inner surface of the outer sliding groove 303, an outer guiding sliding block 304 is fixed to the outer side of the front end of the sub handle body 105, a positioning clamping tooth 306 is formed at one side of the outer guiding sliding block 304, the outer guiding sliding block 304 is slidingly connected to the outer sliding groove 303, and the positioning clamping tooth 306 is elastically clamped in the positioning sliding tooth 305, and the elastic clamping tooth 306 is elastically clamped with the positioning sliding tooth 305, so that the elastic clamping tooth 206 can keep a certain opening and closing distance relative to the lower engaging block 206 under the action of the elastic sliding block 202;
The front end of the sub-handle body 105 is also elastically connected with a hexagonal 404 in a sliding way, a hexagonal groove 405 is formed in the main body of the outer guide sliding block 304, one side of the hexagonal 404 is connected with a side elastic sheet 409, a clamping column 410 is fixedly connected to the inner side surface of the side elastic sheet 409, the outer side surface of the outer connecting sliding plate 302 is uniformly provided with a plurality of groups of side clamping holes 408, and when the hexagonal 404 is elastically inserted into the hexagonal groove 405, the clamping column 410 can be elastically clamped into any group of opposite side clamping holes 408;
The elastic clamping of the hexagonal 404 into the hexagonal groove 405, and under the elastic action of the side elastic sheet 409 on the clamping column 410, the elasticity of the clamping column 410 on any group of opposite side clamping holes 408 can be connected, so that the stability of the lower occlusion block 206, which can be kept at a certain opening and closing distance relative to the upper occlusion block 202, can be improved again on the basis of the cooperation of the positioning clamping teeth 306 and the positioning sliding teeth 305;
In the non-use state, the main handle body 101 and the sub handle body 105 are in the closed position, and the lower occlusion block 206 and the upper occlusion block 202 are in the closed state at the same time, so that the lower occlusion block 206 and the upper occlusion block 202 can be conveniently placed into the oral cavity of a patient;
After the patient bites the upper bite block 202 and the lower bite block 206, a medical staff can control the opening and closing angles of the main handle body 101 and the sub handle body 105 on one side of the oral cavity, so as to control the opening distance of the lower bite block 206 relative to the upper bite block 202;
In addition, as the screwing position of the sub-handle body 105 and the main handle body 101 is positioned at one side of the lower occlusion block 206 and the upper occlusion block 202, and the opening positions of the main handle body 101 and the sub-handle body 105 are opposite to the lower occlusion block 206 and the upper occlusion block 202, the main handle body 101 and the sub-handle body 105 can increase the convenience of the operation of the invention on the basis of not interfering with the oral examination;
And in the process of opening the lower engagement block 206 relative to the upper engagement block 202, the outer connection sliding plate 302 and the outer guide sliding block 304 form sliding connection, so that the stability of the lower engagement block 206 relative to the upper engagement block 202 in the opening process can be improved;
The positioning latch 306 at one side of the outer guiding slide block 304 is matched with the sliding latch formed by the positioning slide teeth 305 on the inner surface of the outer slide groove 303, so that the positioning latch 306 can be clamped at any position of the positioning slide teeth 305, and the lower slide block 206 in an elastic opening state is driven to stay at an opened position relative to the upper slide block 202 through the sliding connection matching formed by the lower slide column 207 and the lower slide groove 208 and the rotary connection matching formed by the lower slide column 207 and the lower slide block 206;
support work for the patient's mouth is formed by the stable open lower bite block 206 and upper bite block 202;
after the outer connecting slide plate 302 moves to the adjusted position relative to the outer guiding slide block 304, the elastic ejected hexagonal 404 is pressed into the hexagonal groove 405, and the clamping column 410 connected to one side of the side elastic sheet 409 is clamped into the opposite side clamping hole 408, so that the stability of the position locking of the outer connecting slide plate 302 after moving to the position relative to the outer guiding slide block 304 is improved again through the elastic clamping of the clamping column 410 and the side clamping hole 408 on the basis that the positioning clamping teeth 306 are in sliding clamping fit with the positioning sliding teeth 305.
As shown in fig. 2 and 3, the specific structures of the external handle assembly 1 and the engaging assembly 2 are that a through groove 104 is formed at the rear end of the main handle body 101, an opening and closing rotary hole 102 is formed at the position where the middle rear end of the main handle body 101 is connected with the through groove 104, an opening and closing shaft 103 is rotatably connected in the opening and closing rotary hole 102, the middle rear end of a sub handle body 105 is fixedly inserted in the opening and closing shaft 103, and the sub handle body 105 can rotate in the through groove 104 within the opening and closing range of the main handle body 101 and the sub handle body 105;
An upper fixed shaft 201 is fixedly connected to the middle position of the outer end of the upper occluding block 202, the upper fixed shaft 201 is transversely inserted and fixed to the front end of the female handle body 101, an upper fixed block 203 is symmetrically fixed to the outer end of the upper occluding block 202 by taking the upper fixed shaft 201 as a center, the upper end of an opening and closing guide shaft 204 is inserted and fixed in the upper fixed block 203, a lower sliding column 207 is rotationally connected to the middle position of the outer end of a lower occluding block 206, a lower sliding block 209 is symmetrically fixed to the outer end of the lower occluding block 206 by taking the lower sliding column 207 as a center, and bottom connecting plates 205 are fixedly connected to the bottom ends of the two groups of opening and closing guide shafts 204 after being slidably inserted into the lower sliding blocks 209;
The lower chute 208 is arranged at the front end of the sub-handle body 105, and the lower slide column 207 is connected in the lower chute 208 in a sliding way;
Each group of opening and closing guide shafts 204 are sleeved with a pressure spring 210, the top end of the pressure spring 210 is clamped and fixed at the bottom end of the upper fixed block 203, and the bottom end of the pressure spring 210 is clamped and fixed at the top end of the lower sliding block 209;
By setting the sub-handle 105 and the main handle 101 in a crossed screwing state and fixing the upper engaging block 202 at the front end of the main handle 101, the lower engaging block 206 elastically slides on the lower end of the upper engaging block 202, so that when the sub-handle 105 is opened relative to the main handle 101, the lower engaging block 206 can be opened in a labor-saving manner relative to the upper engaging block 202 through the sliding engagement formed by the lower sliding column 207 and the lower sliding chute 208 and the rotating connection formed by the lower sliding column 207 and the lower engaging block 206 under the action of the elastic support of the pressure spring 210.
The specific structures of the opening and closing clamping lock assembly 3 and the locking assembly 4 are shown in fig. 4, 5, 6, 7 and 8, an outer fixed shaft 301 is fixedly connected to the outer end face of the lower sliding column 207, and one end of an outer connecting sliding plate 302 is fixedly inserted into the outer fixed shaft 301;
The side sliding seats 401 are symmetrically and fixedly connected to the two sides of the front end of the sub-handle body 105, each group of side sliding seats 401 is slidably connected with a side guide rod 402, the top ends of the two groups of side guide rods 402 are fixedly connected with a connecting transverse plate 403 together, and a hexagonal 404 is fixedly connected to the middle position of the inner face of the connecting transverse plate 403;
A lock spring 406 is sleeved in each group of side guide rods 402, the top end of the lock spring 406 is clamped and fixed on the inner surface of the connecting transverse plate 403, and the bottom end of the lock spring 406 is clamped and fixed on the top surface of the side sliding seat 401;
the limit sleeve 407 is fixedly connected to the bottom end of the side guide rod 402, and the limit sleeve 407 is always positioned at the lower side of the side sliding seat 401;
The side spring piece 409 is fixedly connected to one side of the inner surface of the connecting transverse plate 403, an arc surface is arranged in the middle of the side spring piece 409, and the clamping column 410 is fixedly connected to the outer side of the arc surface in the middle of the side spring piece 409;
The connecting vertical plates 411 are symmetrically connected and fixed at one side of the lower end of the side elastic sheet 409, and the outer ends of the two groups of connecting vertical plates 411 are fixedly connected with an outer operating handle 412 together;
while the lower slide column 207 slides in the lower slide groove 208, the lower slide column 207 drives the outer connecting slide plate 302 and the outer guide slide block 304 to form sliding fit, and as the positioning slide teeth 305 arranged on the inner surface of the outer slide groove 303 and the positioning latch teeth 306 arranged on the side surface of the outer guide slide block 304 are in a clamping state when being pushed by no external force, sliding can be formed after being pushed by a certain external force, so that the lower occlusion block 206 can stay at the adjusted position under the elastic support of the pressure spring 210 through the matching of the positioning latch teeth 306 and the positioning slide teeth 305, the oral cavity of a patient can be expanded to different angles, and the examination of medical staff is more convenient;
After the lower engagement block 206 is adjusted to a proper supporting position, the hexagonal 404 in an elastic ejection state can be inserted into the hexagonal groove 405 after being pressed under the elastic supporting action of the locking spring 406 by matching with the clamping action of the opening and closing locking assembly 3, and the clamping column 410 can be driven to be clamped into the opposite side clamping hole 408 under the action of the elastic deformation of the side elastic sheet 409 along with the pressing of the hexagonal 404, so that the outer guide sliding block 304 and the outer connecting sliding plate 302 are matched with the hexagonal groove 405 through the insertion of the hexagonal 404 and the elastic clamping of the clamping column 410 to the opposite side clamping hole 408 to form a stable connecting state;
and the outer end of the outer operating handle 412 is shifted to make the side spring 409 elastically deform, so that the purpose of releasing the clamping between the clamping column 410 and the side clamping hole 408 can be achieved.
The specific structures of the medicine frame member 5 and the outer locking member 6 are shown in fig. 9, 10, 11 and 12, one end of the inner rotating rod 501 is rotatably connected in the opening and closing shaft 103, the other end of the inner rotating rod 501 is slidably connected with the outer sliding rod 502, the side surface of the other end of the outer sliding rod 502 is fixedly provided with a spherical seat 503, the spherical seat 503 is matched and connected with a spherical rotating seat 504, the clamping seat 505 is fixedly connected to the outer end of the spherical rotating seat 504, and the spherical rotating seat 504 can be subjected to any angle adjustment within the control range of the spherical rotating seat 504 by the spherical seat 503, so that after the medicine administration spoon or medicine administration device is clamped in the clamping seat 505, the medicine administration spoon or medicine administration device can be accurately delivered to a local affected part in an oral cavity;
The clamping and fixing plate 506 is fixedly connected to one side of the front end of the female handle body 101, the arc-shaped elastic sheet 507 is fixedly connected to the bottom side of the outer end of the clamping and fixing plate 506, and the clamping shaft 508 is fixedly connected to the middle position of the outer side surface of the arc-shaped elastic sheet 507;
A telescopic chute 509 is formed at the other end of the inner rotary rod 501, telescopic sliding teeth 511 are formed in the inner surface of the telescopic chute 509, a telescopic sliding block 510 is fixed on the bottom surface of the outer sliding rod 502, a telescopic clamping tooth 512 is formed on one side of the telescopic sliding block 510, the telescopic sliding block 510 and the telescopic chute 509 form sliding connection fit, and the telescopic clamping tooth 512 and the telescopic sliding tooth 511 form elastic sliding clamping fit;
The blind hole is formed in the inner side surface of the other end of the outer sliding rod 502, the aperture of the blind hole is matched with the outer diameter of the clamping shaft 508, under the condition that the medicine rack member 5 is not used, the blind hole at the other end of the outer sliding rod 502 is elastically clamped into the clamping shaft 508 through the expansion and contraction and expansion retaining functions formed by the outer sliding rod 502 and the inner rotating rod 501 and the rotating state of the inner rotating rod 501 around the opening and closing shaft 103, so that the outer sliding rod 502 and the inner rotating rod 501 can be clamped on one side of the main handle body 101, shielding can not be formed between the main handle body 101 and the sub handle body 105, and checking work of an oral cavity is not interfered;
The arc-shaped elastic sheet 507 is stirred to cause the arc-shaped elastic sheet 507 to generate elastic deformation, so that the purpose that the clamping shaft 508 is separated from the blind hole formed in the outer sliding rod 502 can be achieved;
The connecting upright post 601 is fixedly connected to the outer side of one end of the outer connecting sliding plate 302, the elastic clamping bottom fixing plate 602 is fixedly connected to the outer end of the connecting upright post 601, a V-shaped elastic sheet 603 is connected between the outer clamping locking block 604 and the elastic clamping bottom fixing plate 602, and the position of the outer clamping locking block 604 can be changed with the elastic clamping bottom fixing plate 602 through the V-shaped elastic sheet 603;
an outer locking hole 605 is formed in the main body of the outer locking block 604, an outer locking column 606 is fixed on the outer side surface of the other end of the outer sliding rod 502, and the outer locking column 606 is coaxially opposite to a blind hole formed in the inner side surface of the other end of the outer sliding rod 502;
After the sub-handle body 105 is opened and closed to a certain angle relative to the main handle body 101 and the lower engagement block 206 is driven to be opened and closed to a certain distance relative to the upper engagement block 202, the outer sliding rod 502 and the inner rotating rod 501 in the use state can be in a state of being connected with the outer engagement block 604 by elastically inserting the outer engagement lock hole 605 formed in the outer engagement lock block 604 into the outer engagement lock column 606, so that the clamping seat 505 is in a stable position relative to the opened sub-handle body 105, and a drug administration spoon or a drug administration device can be clamped into the clamping seat 505 more conveniently for use;
After the main handle body 101, the sub handle body 105, the lower occlusion block 206 and the upper occlusion block 202 are all closed, the whole portable electronic device can be locked in a closed and contracted state by clamping the blind hole at the other end of the outer sliding rod 502 into the clamping shaft 508 and then clamping the outer clamping lock hole 605 into the outer clamping lock column 606;
And through the elastic deformation of the V-shaped elastic sheet 603, the outer locking hole 605 can be locked into the outer locking column 606, and the outer locking hole 605 can be separated from the locking connection with the outer locking column 606.
Preferably, a notch is formed on the non-arc surface of the main body of the side elastic sheet 409, and two groups of connecting vertical plates 411 are symmetrically located at two sides of the notch, and interference between the side elastic sheet 409 and the lock spring 406 and interference between the side guide rod 402 in the elastic deformation process of the side elastic sheet 409 can be eliminated in a targeted manner through a structure formed by connecting the vertical plates 411 and the side elastic sheet 409.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (4)

1. An auxiliary opening mechanism for an oral cavity comprises an outer handle assembly (1), and is characterized in that: the device also comprises a snapping component (2), an opening and closing locking component (3) and a locking component (4);
The outer handle assembly (1) comprises a main handle body (101) and a sub handle body (105), the occluding assembly (2) comprises an upper occluding block (202) and a lower occluding block (206), the opening and closing locking assembly (3) comprises an outer guide sliding block (304) and a positioning locking tooth (306), and the locking assembly (4) comprises a hexagonal groove (405) and a locking column (410);
The female handle body (101) is in cross-rotation connection with the sub handle body (105), the upper engagement block (202) is fixedly connected to the inner side of the front end of the female handle body (101), the lower engagement block (206) is in downward bouncing sliding connection with the right lower part of the upper engagement block (202), the lower sliding column (207) is in screw connection with the outer side of the lower engagement block (206), the lower sliding column (207) is in sliding connection with the front end of the sub handle body (105), the outer side of the lower sliding column (207) is connected with an external connecting sliding plate (302), the other end of the external connecting sliding plate (302) is provided with an external sliding groove (303), the inner face of the external sliding groove (303) is provided with a positioning sliding tooth (305), the external guiding sliding block (304) is fixed to the outer side of the front end of the sub handle body (105), the positioning sliding tooth (306) is arranged on one side of the external guiding sliding block (304), the external sliding block (304) is in sliding connection with the outer sliding groove (303), the front end of the sub handle body (105) is also in sliding connection with the six elastic sliding blocks (306), the front end of the external sliding block (404) is provided with six elastic blocks (405), the six elastic blocks (404) are arranged on one side of the external sliding block (404), the six elastic blocks (404) are evenly connected with one side of the elastic blocks (404), the hexagonal groove (405) is elastically inserted into the inner surface of the hexagonal groove (404) after the hexagonal groove is in place, and the clamping column (410) can be elastically clamped into any group of opposite side clamping holes (408);
The outer handle assembly (1) further comprises an opening and closing shaft (103) and a through groove (104), the through groove (104) is formed in the rear end of the main handle body (101), an opening and closing rotary hole (102) is formed in the middle rear end of the main handle body (101), the opening and closing shaft (103) is rotatably connected in the opening and closing rotary hole (102), and the middle rear end of the sub handle body (105) is fixedly inserted into the opening and closing shaft (103);
the engagement assembly (2) further comprises an opening and closing guide shaft (204) and a lower sliding groove (208), the outer end of the upper engagement block (202) is fixedly connected with an upper fixed shaft (201), the upper fixed shaft (201) is fixedly connected to the front end of the main handle body (101) in an inserted mode, the outer end of the upper engagement block (202) is symmetrically fixed with an upper fixed block (203), the upper end of the opening and closing guide shaft (204) is fixedly connected to the upper fixed block (203) in an inserted mode, the outer end of the lower engagement block (206) is symmetrically fixed with a lower sliding block (209), two groups of opening and closing guide shafts (204) are fixedly connected with a bottom connecting plate (205) in a sliding mode through the common connection of the bottom ends of the lower sliding blocks (209), the lower sliding groove (208) is formed in the front end of the sub handle body (105), the lower sliding column (207) is fixedly connected to the lower sliding groove (208), a compression spring (210) is sleeved in each group of opening and closing guide shafts (204), the top end of the compression spring (210) is fixedly clamped to the bottom end of the upper fixed block (203), and the bottom end of the compression spring (210) is fixedly clamped to the top end of the lower sliding block (209);
The opening and closing clamping lock assembly (3) further comprises an outer fixed shaft (301), the outer fixed shaft (301) is fixedly connected to the outer end face of the lower sliding column (207), and one end of the outer connecting sliding plate (302) is fixedly inserted into the outer fixed shaft (301);
The locking assembly (4) further comprises side sliding seats (401), limiting sleeves (407) and connecting vertical plates (411), the side sliding seats (401) are symmetrically and fixedly connected to the two sides of the front end of the sub-handle body (105), side guide rods (402) are slidably connected to each group of side sliding seats (401), connecting transverse plates (403) are fixedly connected to the top ends of the two groups of side guide rods (402) together, the hexagonal guide rods (404) are fixedly connected to the inner sides of the connecting transverse plates (403), locking springs (406) are mounted in each group of side guide rods (402) in a sleeved mode, the top ends of the locking springs (406) are fixedly clamped to the inner sides of the connecting transverse plates (403), the bottom ends of the locking springs (406) are fixedly clamped to the top surfaces of the side sliding seats (401), the limiting sleeves (407) are fixedly connected to the bottom ends of the side guide rods (402), side elastic plates (409) are fixedly connected to one side of the inner sides of the connecting transverse plates (403), clamping columns (410) are fixedly connected to the outer sides of the cambered surfaces of the middle positions of the side elastic plates (409), and the connecting vertical plates (411) are symmetrically connected to the lower ends of the side elastic plates (409), and the two groups of the outer handles are fixedly connected to the outer handles.
2. The oral assist spreading mechanism according to claim 1, wherein: the main body of the side elastic sheet (409) is provided with a notch on the non-cambered surface, and the two groups of connecting vertical plates (411) are symmetrically positioned at two sides of the notch.
3. A topical drug delivery device, characterized by: the oral cavity auxiliary opening mechanism comprises the oral cavity auxiliary opening mechanism as claimed in claim 1 or 2, and further comprises a medicine frame component (5) and an outer clamping lock component (6), wherein the medicine frame component (5) comprises an inner rotating rod (501), a clamping seat (505), a clamping fixing plate (506), an arc-shaped elastic sheet (507) and a clamping shaft (508), one end of the inner rotating rod (501) is rotationally connected in an opening and closing shaft (103), the other end of the inner rotating rod (501) is connected with an outer sliding rod (502) in a sliding manner, the side surface of the other end of the outer sliding rod (502) is fixedly provided with a spherical seat (503), the spherical seat (503) is matched and connected with a spherical rotary seat (504), the clamping seat (505) is fixedly connected to the outer end of the spherical rotary seat (504), the clamping fixing plate (506) is fixedly connected to one side of the front end of a female handle body (101), the arc-shaped elastic sheet (507) is fixedly connected to the bottom side of the outer end of the clamping fixing plate (506), the clamping shaft (508) is fixedly connected to the outer side surface of the arc-shaped elastic sheet (507), the other end of the inner rotating rod (501) is provided with a telescopic sliding groove (509), the inner surface of the inner sliding rod (509) is fixedly connected with an inner sliding groove (511), the inner surface (511) is provided with a telescopic sliding groove (510), the telescopic sliding groove (510) is formed, the telescopic sliding groove (510) is matched and the telescopic sliding groove (510), the telescopic latch (512) and the telescopic slide teeth (511) form elastic slide latch fit;
The outer clamping and locking component (6) comprises a connecting upright post (601), an elastic clamping bottom fixing plate (602), an outer clamping locking block (604) and an outer clamping locking hole (605), wherein the connecting upright post (601) is fixedly connected to the outer side of one end of the outer connecting sliding plate (302), the elastic clamping bottom fixing plate (602) is fixedly connected to the outer end of the connecting upright post (601), a V-shaped elastic sheet (603) is connected between the outer clamping locking block (604) and the elastic clamping bottom fixing plate (602), the outer clamping locking hole (605) is formed in the main body of the outer clamping locking block (604), and an outer clamping locking column (606) is fixedly arranged on the outer side face of the other end of the outer sliding rod (502).
4. A topical administration device according to claim 3, wherein: a blind hole is formed in the inner side surface of the other end of the outer sliding rod (502), and the aperture of the blind hole is matched with the outer diameter of the clamping shaft (508).
CN202410206451.4A 2024-02-26 2024-02-26 Oral cavity auxiliary opening mechanism and local drug delivery device Active CN117860183B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209186650U (en) * 2018-11-27 2019-08-02 吴成红 A kind of opening support device of oral care
WO2022048220A1 (en) * 2020-09-01 2022-03-10 河南医学高等专科学校 Oral cavity examination device for department of oral medicine
CN218651755U (en) * 2022-08-31 2023-03-21 盛巍 Convenient oral cavity dilator
CN116672118A (en) * 2023-06-29 2023-09-01 上海市奉贤区牙病防治所 Auxiliary tool for treating periodontal disease
CN117281631A (en) * 2023-10-17 2023-12-26 德化县医院 Expansion support for stomatology department

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209186650U (en) * 2018-11-27 2019-08-02 吴成红 A kind of opening support device of oral care
WO2022048220A1 (en) * 2020-09-01 2022-03-10 河南医学高等专科学校 Oral cavity examination device for department of oral medicine
CN218651755U (en) * 2022-08-31 2023-03-21 盛巍 Convenient oral cavity dilator
CN116672118A (en) * 2023-06-29 2023-09-01 上海市奉贤区牙病防治所 Auxiliary tool for treating periodontal disease
CN117281631A (en) * 2023-10-17 2023-12-26 德化县医院 Expansion support for stomatology department

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