CN112315604A - Overflow-discharging type dental impression tray - Google Patents
Overflow-discharging type dental impression tray Download PDFInfo
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- CN112315604A CN112315604A CN202011425105.3A CN202011425105A CN112315604A CN 112315604 A CN112315604 A CN 112315604A CN 202011425105 A CN202011425105 A CN 202011425105A CN 112315604 A CN112315604 A CN 112315604A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/0006—Impression trays
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Abstract
The invention discloses a discharge overflow type dental impression tray, which is a channel capable of accommodating an upper dental arch, and also comprises a third bottom plate, a second outer side wall and a second bottom plate, wherein the second bottom plate is provided with a plurality of third meshes in one-to-one correspondence with the first meshes; the first sliding assembly enables the second bottom plate to be positioned above or outside the third bottom plate; the second sliding assembly enables the second outer side wall to slide on the first outer side wall and enables the third bottom plate to be in contact with or separated from the first bottom plate; when the third bottom plate is in contact with the first bottom plate, the second bottom plate is located outside the third bottom plate. The device can avoid the impression material from flowing into the oral cavity, can quickly separate the tray from the impression material, and is convenient to clean.
Description
Technical Field
The invention relates to a tray, in particular to a drainage type dental impression tray.
Background
Dental impression trays are tools used by dentists in making tooth models for dental patients. When in use, a layer of special adhesive is coated on the tray to dry the tray, then the mixed impression material is filled into the tray, the tray is placed in the mouth, and pressure is slightly applied to enable the material to overflow; the position of the stamp within the port is kept fixed and no further pressure is applied, ensuring complete curing of the material.
When the existing impression tray is used, the following problems exist:
firstly, the method comprises the following steps: after the tray filled with the impression material is placed in the mouth, the patient is prone to nausea and retching due to overflow of the impression material, so that the comfort level is reduced, and the movement of the patient can influence the quality of the impression; for patients with obvious pharyngeal reflex, the treatment is affected easily because of the failure of taking the model.
Secondly, the method comprises the following steps: after the material is solidified, the impression material and the tray are connected into a whole, when medical staff takes out the solidified impression material, the solidified impression material is often needed to be damaged, the operation is complicated, and the working efficiency is low;
thirdly, the method comprises the following steps: at present, the dental impression tray frequently used by dentists is made of metal materials, so that after impression materials are taken out of the tray, medical staff still need to clean and disinfect the tray so as to be used repeatedly, but due to the fact that a plurality of meshes are arranged in the tray, the meshes need to be cleaned with the tray when the tray is cleaned, and time and labor are wasted.
Therefore, based on the above problems, a new dental impression tray which is convenient to use is urgently needed.
Disclosure of Invention
An object of the present invention is to provide a drainage type dental impression tray, which forms an overflow space by a third bottom plate located below a first bottom plate and a second outer sidewall outside the first outer sidewall, thereby preventing overflowing impression material from flowing into an oral cavity to cause retching of a patient; then the solidified impression below the first bottom plate is removed through the movement of the second bottom plate, and finally, medical personnel can quickly separate the solidified impression from the tray through the overstock effect of the puncture columns on the third bottom plate; simultaneously, the impale post can also tentatively get rid of the impression material in the first mesh, reduces medical personnel's washing volume.
The purpose is realized by adopting the following technical scheme: the tray of this device includes first bottom plate and follows the first lateral wall that sets up along the outer border of first bottom plate, the middle part of first bottom plate is equipped with the arch, the arch is protruding to form the channel of dental arch on can the holding with the inner wall of first lateral wall, be provided with a plurality of first meshs on the first bottom plate, be provided with a plurality of second meshs on the first lateral wall, the below of first bottom plate is provided with the third bottom plate the same with first bottom plate shape, the outer border of third bottom plate is provided with the second outside wall, be provided with a plurality of columns of impaling on the third bottom plate, the column of impaling and first mesh one-to-one. The second outer side wall and the third bottom plate form a preliminary overflow space below the first bottom plate, and when the injection molding machine is used, extruded impression materials can flow into the space between the third bottom plate and the first bottom plate through the first mesh holes, so that the phenomenon that the extruded impression materials flow into an oral cavity to cause retching of a patient is avoided. Carry out the upper and lower slip through second sliding assembly between first lateral wall and the second lateral wall, when taking out the tray from the oral cavity, when the die and the tray of needs separation solidification, make the first mesh that corresponds on inserting first bottom plate through second sliding assembly and make the puncture post on the third bottom plate, can not only shift out the die in the first mesh, can also become flexible die and tray simultaneously, make medical personnel can be quick light take out the die after the solidification from the tray.
On this basis, the impression material can be gradually solidified in the tray, and in the process of solidification, the flowing impression material can flow into the third bottom plate through first mesh, and the lower extreme of the impression material that flows into in first mesh can grow in the solidification process, therefore the fixed power between multiplicable impression material of first mesh and the tray avoids in the oral cavity, and impression material and tray take place to slide, influence impression quality. If the piercing columns are directly inserted into the first meshes, the resistance of the stamp material expanded at the lower ends of the first meshes and the stamp material in the first meshes is large, so that the piercing columns can be inserted into the first meshes only by large force, and the piercing columns are easy to damage, and the use efficiency is low, therefore, the device is also provided with a second bottom plate between the third bottom plate and the first bottom plate, and the second bottom plate is provided with a plurality of third meshes which correspond to the first meshes one by one; the second bottom plate is connected with a first sliding assembly, and the first sliding assembly can enable the second bottom plate to be positioned above or outside the third bottom plate; third meshes on the second bottom plate correspond to first meshes on the second bottom plate one by one, in the process of curing, the second bottom plate is contacted with the first bottom plate, the impression material flows into the third meshes through the first meshes and finally enters between the second bottom plate and the third bottom plate, after curing, when separation is needed, the second bottom plate is moved through the first sliding assembly, so that the second bottom plate is positioned outside the third bottom plate, in the process, along with the movement of the second bottom plate, the third meshes on the second bottom plate enable the impression cured in the second bottom plate to be fractured, in the process of moving the second bottom plate, the separated part is the impression in the third meshes, the size is smaller, the fracture is more convenient, after separation, the second bottom plate is positioned outside the third bottom plate, at the moment, the second bottom plate can not influence the piercing columns to be inserted into the first meshes, the piercing columns are inserted into the first meshes under the action of the second sliding assembly, through impaling post separation die and tray, can effectual reduction medical personnel's application of force like this, the third bottom plate only needs less effort just can make to pierce through the post and insert in first mesh, makes the die and the tray quick separation after the solidification.
Secondly, when the second bottom plate is located the top of third bottom plate, namely the second bottom plate contacts with first bottom plate, the second bottom plate still can be used to separate third bottom plate and first bottom plate, avoids before the solidification piercing post on the third bottom plate just inserts in the first mesh on the first bottom plate, influences the connection effect between impression material and tray.
Preferably, when the second base plate is positioned above the third base plate, the second base plate is in contact with the lower end of the first base plate, and the corresponding third mesh holes are coaxial with the first mesh holes. The impression material that flows out in the first mesh all flows into in the third mesh, and after the solidification, when the second bottom plate moved under first slip subassembly's drive, the impression material diameter in first mesh and the second mesh is less, and the impression material in the first mesh of separation that can be faster and the third mesh improves the availability factor.
Specifically, first slip subassembly includes rotary rod and connecting rod, the one end of connecting rod is connected with the lower extreme of second bottom plate, the other end and the rotary rod connection of connecting rod, be provided with the recess that is used for placing the rotary rod on the third bottom plate, the lateral surface fixedly connected with handle of second lateral wall, the one end of rotary rod is passed the handle and is located the inboard of second lateral wall, the rotary rod passes through threaded connection with the handle, the rotary rod is through its length in second lateral wall inboard of rotatory regulation. The rotary rod is placed in the recess, and is located the third bottom plate outside when the second bottom plate, and when third bottom plate and first bottom plate mutual contact, the rotary rod can not influence the contact between first bottom plate and the third bottom plate, pierces through the post and can the disect insertion in first mesh, can not influence the use.
First slip subassembly is when the operation, adjust the length of rotary rod at the inboard second outside wall through rotatory rotary rod, through muffjoint between rotary rod and the connecting rod, therefore the rotary rod can rotate on the connecting rod, telescopic both ends are provided with the dog on the rotary rod simultaneously, therefore the rotary rod is when removing in the recess, can drive the connecting rod and remove together, the handle is fixed on the outside of second outside wall, the rotary rod passes the inside of handle and the second outside wall is connected with the connecting rod, threaded connection is passed through with the inside of handle to the rotary rod, therefore the rotary rod both can be fixed in the handle, can adjust the length of rotary rod at the inboard second outside wall at rotatory in-process again, and then drive the second bottom plate through the connecting rod and remove.
Furthermore, the second sliding assembly comprises a clamping block arranged on the inner side surface of the second outer side wall, a sliding groove is arranged on the outer side surface of the first outer side wall along the vertical direction, the clamping block is positioned in the sliding groove, the clamping block can slide up and down in the sliding groove, and when the second bottom plate is in contact with the first bottom plate, the clamping block is positioned at the lower end of the sliding groove; when the third bottom plate contacts with the first bottom plate, the clamping block is positioned at the upper end of the sliding groove. This device is when using, during initial condition, the second bottom plate is located the top of third bottom plate, the second bottom plate contacts with the lower extreme of first bottom plate, the connecting rod of connecting on the second bottom plate supports the second bottom plate, the connecting rod is located between third bottom plate and the first bottom plate, therefore the connecting rod can support this device, avoid the fixture block to remove in the spout, when second bottom plate and connecting rod are located the third bottom plate outside under the effect of rotary rod, no support of connecting rod and second bottom plate has been between first bottom plate and the second bottom plate, the fixture block can slide in the spout this moment.
On the basis, the piercing column comprises a tip end and a bottom end, the bottom end is a cylinder with the diameter being the same as the inner diameter of the first mesh, the tip end is a cone with the diameter gradually decreasing from bottom to top, and the side face of the bottom end is a tooth face. The puncture post contacts with the die in the first mesh through the pointed end of upper end, and the die in the first mesh is become flexible through the pointed end to the further die material with in the first mesh in bottom discharges, and the back of discharging, the die material and the tray alternate segregation after not only being convenient for solidify can also wash the die material in the first mesh simultaneously, and medical personnel are when disinfecting and washing, raise the efficiency, practice thrift the cleaning time.
And the first mesh holes are in a circular truncated cone shape, the diameter of the lower end of each first mesh hole is smaller than that of the upper end of each first mesh hole, the smaller the diameter of the lower end of each first mesh hole is, so that the cutting force can be further reduced when the second bottom plate moves and separates, and meanwhile, the diameter of the lower end of each third mesh hole is larger than that of the upper end of each third mesh hole. When the third meshes move, gaps between the third meshes and the second meshes are more easily broken, after the third meshes are broken, the second bottom plate can better take the die positioned below the second bottom plate out of the third bottom plate, and the piercing columns can better act in the first meshes to extrude the die in the first meshes. Preferably, a plurality of conical dividing blocks are arranged on the inner side of the upper end of the third mesh opening. The conical divided pieces act in the radial direction of the third mesh, so that the separation can be accelerated by the divided pieces when the second base plate is moved horizontally.
For the device, because the tray needs to be placed in the oral cavity of a patient, the thickness between the third bottom plate and the first bottom plate cannot be set to be larger, so that the height of the puncture column is set to be less than 1cm, and the preferred height of the puncture column is 0.5cm based on the size of the oral cavity of the human body and the size of the required space between the first bottom plate and the third bottom plate.
Preferably, the front end of the first bottom plate is provided with an overflow hole. The impression material that fills on the tray receives the tooth to overstock the back and can flow out the tray when using, consequently sets up row's overflow hole on the front end of first bottom plate, and the diameter of arranging the overflow hole is greater than the diameter of first mesh, and when receiving the extrusion, the impression material in the tray can flow into and arrange the overflow hole, and then flows into between third bottom plate and the first bottom plate, avoids flowing into in patient's the oral cavity. Meanwhile, the front end of the first outer side wall is provided with the shielding layer with elasticity, so when the tray and the impression material on the tray are placed in the oral cavity, the shielding layer can prevent the extruded impression material from contacting the throat of a human body through the front end of the tray, and the vomitus of a patient is caused. For the device, one end connected with the handle is the first outer side wall and the rear end of the first bottom plate, and when the tray is placed in the oral cavity, one end close to the throat is the first outer side wall and the front end of the first bottom plate.
Preferably, when the third bottom plate is contacted with the first bottom plate, the heights of the upper ends of the first outer side wall and the second outer side wall are the same, and a plurality of scrapers are arranged on the surface of the second outer side wall close to the first outer side wall and are obliquely and upwards arranged. When the second outer side wall moves upwards along the sliding groove on the first outer side wall, the ink mould material outside the second mesh is scraped by the scraper on the second outer side wall, and then the efficiency of separating the cured ink mould material from the tray is improved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the overflow type dental impression tray, the preliminary overflow space is formed below the first bottom plate and the first outer side wall through the third bottom plate and the second outer side wall, so that when the tray is used, impression materials in the tray can be prevented from flowing into an oral cavity when being overstocked, and discomfort of a patient is caused; simultaneously, the third bottom plate can move under the drive of the second sliding assembly, so that the puncturing columns on the third bottom plate are inserted into the first meshes on the first bottom plate, medical workers can more conveniently operate when separating the solidified impression and the tray, and meanwhile, the tray cleaning and disinfecting efficiency can also be effectively improved.
Secondly, before this device stings post on the third bottom plate and inserts first mesh, still can separate the impression material that flows into first mesh through the removal of second bottom plate to carry out the top of third bottom plate with the impression material of separation, make and sting during the post can be fast convenient inserts first mesh, operating efficiency is higher. When wasing this device simultaneously, the second bottom plate is located the outside of third bottom plate, consequently when wasing, the operation of being more convenient for also can abluent according to clean.
Moreover, the thickness of the second outer side wall of the device is smaller, and the distance between the third bottom plate and the first bottom plate is smaller, so that the size of the device is smaller, and the comfort degree of a patient when the tray is placed in the oral cavity cannot be influenced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the present apparatus;
FIG. 2 is a schematic structural view of the second base plate above the third base plate;
FIG. 3 is a schematic structural view of the second substrate contacting the first substrate;
FIG. 4 is a schematic view of a second base plate structure;
FIG. 5 is a schematic view of the structure of the rotating rod rotating inside the handle, the length of the rotating rod inside the second outer sidewall increasing;
FIG. 6 is a schematic view of a third base plate structure;
FIG. 7 is a cross-sectional view of the device with the second substrate in contact with the first substrate;
FIG. 8 is a cross-sectional view of the apparatus with the second base plate removed from the third base plate;
FIG. 9 is a cross-sectional view of the apparatus with the second base plate removed from the third base plate and the third base plate in contact with the first base plate;
FIG. 10 is a schematic view of a piercing post and first mesh configuration;
fig. 11 is a schematic view of a barrier layer structure.
Reference numbers and corresponding part names in the drawings:
1-a first bottom plate, 2-a first outer side wall, 3-a sliding chute, 4-a first mesh, 5-a drainage hole, 6-a second mesh, 7-a second outer side wall, 8-a handle, 9-a rotating rod, 10-a third bottom plate, 11-a second bottom plate, 12-a third mesh, 13-a groove, 14-a fixture block, 15-a piercing column, 16-a connecting hole, 17-a connecting rod and 18-a shielding layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the scope of the present invention.
[ example 1 ]
The tray of this device includes first bottom plate 1 and along first lateral wall 2 of 1 outside border setting of first bottom plate, and the middle part of first bottom plate 1 is equipped with the arch, and the arch forms the channel of dental arch on can the holding with the inner wall of first lateral wall 2, is provided with a plurality of first meshs 4 on the first bottom plate 1, is provided with a plurality of second meshs 6 on the first lateral wall 2, and the contained angle between first lateral wall and the first bottom plate is 90 degrees. In use, the impression material fills the channel enclosed by the arcuate projections of the first base plate and the inner wall of the first outer side wall 2.
As shown in fig. 1, a third bottom plate 10 is disposed below the first bottom plate 1, the third bottom plate 10 has the same shape as the first bottom plate 1, and when the third bottom plate contacts the first bottom plate, the third bottom plate can be completely attached to the first bottom plate, and the piercing posts 15 on the third bottom plate are all inserted into the corresponding first meshes. The outer edge of the third bottom plate 10 is provided with a second outer side wall 7, the material of the device is metal material, and the included angle between the second outer side wall and the third bottom plate is 90 degrees. Third bottom plate and second lateral wall are located the below of first bottom plate and the lateral surface of first lateral wall respectively, be connected with second slip subassembly between first lateral wall and the second lateral wall, second slip subassembly can be multiple structure, as long as can realize that the second lateral wall slides from top to bottom along first lateral wall, second slip subassembly is including setting up the spout that is located vertical side at the inboard of second lateral wall in this embodiment, the gyro wheel of setting at first lateral wall, the gyro wheel is fixed in the spout, and can follow spout place direction and reciprocate, when the gyro wheel removed the inside upper end of spout, first bottom plate and third bottom plate separation, and form an overflow space between first bottom plate and the third bottom plate. In order to improve the efficiency of inserting the piercing posts 15 on the third bottom plate 10 into the first meshes, the second bottom plate 11 is further provided in the present embodiment, the shape of the second bottom plate 11 is also the same as that of the first bottom plate, the second bottom plate has the function that the third meshes on the second bottom plate correspond to the first meshes on the first bottom plate one by one, and the overflow material flowing into the first meshes can directly flow into the third meshes and then enter the third bottom plate. The second base plate 11 is connected with a first sliding assembly, the first sliding assembly enables the second base plate 11 to be located above or outside the third base plate 10, and when the third base plate 10 is in contact with the first base plate 1, the second base plate 11 is located outside the third base plate 10.
In this embodiment, the first sliding assembly is a telescopic rod and a supporting column connected with the second bottom plate, when the second bottom plate is above the third bottom plate, as shown in fig. 2, at this time, the second bottom plate contacts with the lower end of the first bottom plate, as shown in fig. 3, the third meshes on the second bottom plate correspond to the first meshes on the first bottom plate one by one, and the supporting column is coaxial and is used for supporting the second bottom plate, so that the second bottom plate can contact with the first bottom plate, and a distance is reserved between the first bottom plate and the third bottom plate, thereby preventing the piercing column from being inserted into the first meshes through the third meshes and influencing the impression material to flow into the first meshes. And meanwhile, the support column can prevent the second outer side wall from sliding upwards on the first outer side wall.
When in use, firstly, the impression material is filled in a channel formed by the arched bulges of the first bottom plate and the inner wall of the first outer side wall 2, the tray is put into the oral cavity of a patient, at the moment, the second bottom plate is contacted with the lower end of the first bottom plate, the tray is taken out after a certain time, gypsum is filled in the impression, after a certain time, the gypsum is taken out from the impression, at the moment, the tray and the impression are required to be separated, and the tray is cleaned so as to be convenient for the tray to be reused. When needs separation tray and die, adjust the length of telescopic link, make the telescopic link extension shift out the third bottom plate with the second bottom plate, the supporting role of second bottom plate and support column has not been had between first bottom plate and the third bottom plate, the third bottom plate is under the effect of second slip subassembly, upward movement, make the third bottom plate contact with first bottom plate, pierce through in the post inserts the first mesh that corresponds on the third bottom plate, and then separate tray and die, when carrying out cleaning and disinfection simultaneously in the later stage, effectively reduce medical personnel's cleaning work, more convenient to use. In addition, in the embodiment, the telescopic rod is positioned in the groove on the third bottom plate, so that when the third bottom plate is contacted with the first bottom plate, the telescopic rod does not occupy extra space.
In this embodiment, the thicknesses of the third bottom plate and the second bottom plate are relatively thin, the thickness of the second bottom plate is 0.1mm, the thickness of the third bottom plate is 0.3mm, and the thickness of the second outer side wall is 0.2mm, so that the third bottom plate can be completely attached to the first bottom plate when the third bottom plate contacts with the first bottom plate, and the piercing posts 15 on the third bottom plate are all inserted into the corresponding first meshes. The outer edge of the third bottom plate 10 is provided with a second outer side wall 7, the material of the device is metal material, and the included angle between the second outer side wall and the third bottom plate is 90 degrees.
[ example 2 ]
In this embodiment, the structure of second bottom plate is as shown in fig. 4, first slip subassembly includes rotary rod 9 and connecting rod 17, the one end of connecting rod 17 is connected with the lower extreme of second bottom plate 11, the other end and the rotary rod 9 of connecting rod 17 are connected perpendicularly, the connecting rod passes through muffjoint with the rotary rod, therefore the rotary rod can not drive the connecting rod rotatory when rotatory, telescopic both ends are provided with the baffle on the rotary rod simultaneously, consequently the rotary rod can drive connecting rod and second bottom plate and move together towards the in-process that removes with the connecting rod vertical direction. The structure of the third bottom plate is as shown in fig. 6, a groove 13 for placing a rotating rod 9 is arranged on the third bottom plate 10, a handle 8 is fixedly connected to the outer side surface of the second outer side wall 7, a connecting hole 16 is further arranged on the second outer side wall, one end of the rotating rod 9 penetrates through the handle 8, the connecting hole 16 is located on the inner side of the second outer side wall 7, the rotating rod 9 is connected with the handle 8 through threads, and the length of the rotating rod 9 on the inner side of the second outer side wall 7 is adjusted through rotation. Because the handle is fixed on the second outside wall, the inside of the handle is in threaded connection with the rotating rod, so that in the rotating process of the rotating rod, the rotating rod can move in the handle, and further the length of the rotating rod on the third bottom plate can be adjusted, as shown in fig. 5, when the second bottom plate needs to be moved out of the third bottom plate, the rotating rod increases the length of the rotating rod on the inner side of the second outside wall.
In this embodiment, the second sliding assembly includes a fixture block 14 disposed on an inner side surface of the second outer sidewall 7, a sliding groove 3 is disposed on an outer side surface of the first outer sidewall 2 along a vertical direction, the fixture block 14 is located in the sliding groove 3, the fixture block 14 can slide up and down in the sliding groove 3, and when the second bottom plate 11 contacts with the first bottom plate 1, the fixture block 14 is located at a lower end of the sliding groove 3; when the third base plate 10 contacts the first base plate 1, the latch 14 is located at the upper end of the slide groove 3.
When the device is used, as shown in figure 7, when the device is in an initial state, the fixture block on the second outer side wall is positioned at the lower end of the sliding groove on the first outer side wall, the second bottom plate is contacted with the first bottom plate, the third mesh hole is in one-to-one correspondence with the first mesh hole, the length of the rotating rod at the inner side of the second outer side wall is shortest, impression materials are filled in a channel defined by the arched bulge of the first bottom plate and the inner wall of the first outer side wall 2, then the device is put into the oral cavity of a patient, after a certain time, the device is taken out, the second bottom plate is moved out from between the first bottom plate and the third bottom plate by rotating the rotating rod, as shown in figure 8, after the movement, the fixture block on the second outer side wall is moved upwards in the sliding groove by pressing the third bottom plate until the first bottom plate and the third bottom plate are contacted with each other, the puncture column on the third bottom plate, the clamping block on the second outer side wall is positioned at the upper end in the sliding groove. In the embodiment, because the rotating rod is positioned in the groove, when the first bottom plate is contacted with the third bottom plate, the rotating rod does not occupy extra space.
[ example 3 ]
On the basis of example 2, as shown in fig. 10, the piercing post 15 includes a tip end and a base end, the base end is a cylinder having the same diameter as the inner diameter of the first mesh 4, the tip end is a cone having a diameter gradually decreasing from bottom to top, and the side surface of the base end is a tooth surface. The first meshes 4 are in a circular truncated cone shape, the diameter of the lower end of each first mesh is smaller than that of the upper end of each first mesh, and the diameter of the lower end of each third mesh 12 is larger than that of the upper end of each third mesh. When in use, the extruded impression material flows into the first mesh, the first mesh corresponds to and contacts with the third mesh, so the impression material flows into the third mesh again, when the second bottom plate is moved in the horizontal direction, the position of the second bottom plate acting on the impression material is the position between the first mesh and the third mesh, therefore, the diameter of the lower end of the first mesh is set to be smaller than that of the upper end of the first mesh, and the diameter of the upper end of the third mesh is smaller than that of the lower end of the third mesh, so that the fracture of the impression material between the third mesh and the first mesh can be facilitated when force is applied, and preferably, a plurality of conical split blocks are arranged on the inner side of the upper end of the third mesh 12. When the second bottom plate moves, the conical dividing blocks at the inner sides of the third meshes divide, so that the force is further saved.
On this basis, the height of the piercing post 15 of the present device is less than 1 cm. In this embodiment, the height of the piercing post is 0.5cm, so that when the piercing post is placed in the oral cavity, the piercing post does not occupy more volume, and the space formed between the third bottom plate and the first bottom plate can also achieve the function of overflow.
Meanwhile, when the third bottom plate 10 contacts the first bottom plate 1, the heights of the upper ends of the first outer side wall 2 and the second outer side wall 7 are the same, and a plurality of scrapers are arranged on the surface of the second outer side wall 7 close to the first outer side wall 2 and are obliquely and upwards arranged. Therefore, when the second outer side wall moves upwards, the scraper on the second outer side wall can also scrape the impression material flowing out of the second mesh holes on the first outer side wall. In this embodiment, the front end of the first base plate 1 is provided with an overflow hole 5, which enables the extruded impression material to rapidly flow into the space between the third base plate and the first base plate, thereby preventing the extruded impression material from flowing into the oral cavity of the patient.
As shown in fig. 11, the front end of the first outer sidewall 2 is provided with an elastic shielding layer which seals the front end of the tray, so that the impression material can be further prevented from overflowing the front end of the tray and contacting the throat of the human body to cause retching when in use. On the basis, the shielding layer in the embodiment is a cavity, a plurality of through holes are formed in one side, which is in contact with the impression material, of the shielding layer, the through holes are communicated with the cavity in the shielding layer, and the impression material accumulated by teeth flows to the front end of the tray after the tray is placed in the oral cavity, and enters the shielding layer through the through holes in the shielding layer under the shielding effect of the shielding layer. In this embodiment, the shielding layer is made of a silicone material.
As used herein, "first," "second," "third," etc. merely distinguish the corresponding components for clarity of description and are not intended to limit any order or to emphasize importance, etc. Further, the term "connected" used herein may be either directly connected or indirectly connected via other components without being particularly described.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A discharge type dental impression tray comprises a first bottom plate (1) and a first outer side wall (2) arranged along the outer edge of the first bottom plate (1), wherein an arch-shaped bulge is arranged in the middle of the first bottom plate (1), the arch-shaped bulge and the inner wall of the first outer side wall (2) form a channel capable of containing an upper dental arch, a plurality of first meshes (4) are arranged on the first bottom plate (1), a plurality of second meshes (6) are arranged on the first outer side wall (2), the tray is characterized in that a third bottom plate (10) which is the same as the first bottom plate (1) in shape is arranged below the first bottom plate (1), a second outer side wall (7) is arranged on the outer edge of the third bottom plate (10), a plurality of penetrating columns (15) are arranged on the third bottom plate (10), the penetrating columns (15) correspond to the first meshes (4) one by one, and a second bottom plate (11) which is the same as the first bottom plate (1) in shape is also arranged on the third bottom plate (10), a plurality of third meshes (12) which are in one-to-one correspondence with the first meshes (4) are arranged on the second bottom plate (11); the second bottom plate (11) is connected with a first sliding assembly, and the first sliding assembly can enable the second bottom plate (11) to be positioned above or outside the third bottom plate (10); a second sliding assembly is connected between the first outer side wall (2) and the second outer side wall (7), and the second sliding assembly can enable the second outer side wall (7) to slide on the first outer side wall (2) and enable the third bottom plate (10) to be in contact with or separated from the first bottom plate (1); when the third bottom plate (10) is in contact with the first bottom plate (1), the second bottom plate (11) is located outside the third bottom plate (10).
2. A bleeding dental impression tray according to claim 1, characterized in that when the second base plate (11) is positioned above the third base plate (10), the second base plate (11) is in contact with the lower end of the first base plate (1), the corresponding third mesh openings (12) and the first mesh openings (4) being coaxial.
3. A bleeding dental impression tray according to claim 1, characterized in that the first sliding assembly comprises a rotary rod (9) and a connecting rod (17), one end of the connecting rod (17) is perpendicularly connected with the lower end of the second base plate (11), the other end of the connecting rod (17) is perpendicularly connected with the rotary rod (9), a groove (13) for placing the rotary rod (9) is arranged on the third base plate (10), a handle (8) is fixedly connected with the outer side surface of the second outer side wall (7), one end of the rotary rod (9) passes through the handle (8) and is positioned at the inner side of the second outer side wall (7), the rotary rod (9) is connected with the handle (8) through a thread, and the rotary rod (9) is rotated to adjust the length of the rotary rod (9) at the inner side of the second outer side wall (7).
4. A spill-over type dental impression tray according to claim 1, wherein the second sliding assembly comprises a fixture block (14) disposed on the inner side surface of the second outer side wall (7), the outer side surface of the first outer side wall (2) is provided with a sliding groove (3) along the vertical direction, the fixture block (14) is disposed in the sliding groove (3), the fixture block (14) can slide up and down in the sliding groove (3), and when the second bottom plate (11) contacts the first bottom plate (1), the fixture block (14) is disposed at the lower end of the sliding groove (3); when the third bottom plate (10) is contacted with the first bottom plate (1), the clamping block (14) is positioned at the upper end of the sliding groove (3).
5. A drainage type dental impression tray according to claim 1, wherein the piercing post (15) comprises a tip end and a base end, the base end is a cylinder having the same diameter as the inner diameter of the first mesh (4), the tip end is a cone having a diameter gradually decreasing from bottom to top, and the side surface of the base end is a tooth surface.
6. A spill-over dental impression tray according to claim 1, wherein the first mesh openings (4) are frustoconical with a diameter at the lower end smaller than the diameter at the upper end, and the third mesh openings (12) are frustoconical with a diameter at the lower end larger than the diameter at the upper end.
7. A bleeding dental impression tray according to claim 1, characterized in that the height of the piercing post (15) is less than 1 cm.
8. A draining dental impression tray according to claim 1 or 6, characterized in that inside the upper ends of the third mesh openings (12) are provided with several conical segments.
9. A spill-over dental impression tray according to claim 1, wherein the first bottom plate (1) is provided with spill-over holes (5) at the front end and the first outer side wall (2) is provided with a flexible shielding layer at the front end.
10. A bleeding dental impression tray according to claim 1, characterized in that the upper ends of the first (2) and second (7) outer side walls are of the same height when the third base plate (10) is in contact with the first base plate (1), and that the second outer side wall (7) is provided with scrapers on its side adjacent to the first outer side wall (2), which scrapers are all arranged obliquely upwards.
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| CN202011425105.3A CN112315604B (en) | 2020-12-09 | 2020-12-09 | Overflow-discharging type dental impression tray |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011425105.3A CN112315604B (en) | 2020-12-09 | 2020-12-09 | Overflow-discharging type dental impression tray |
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| CN112315604A true CN112315604A (en) | 2021-02-05 |
| CN112315604B CN112315604B (en) | 2021-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114052961A (en) * | 2021-12-01 | 2022-02-18 | 北京大学口腔医学院 | Disposable lower jaw tray capable of preventing demoulding |
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| CN112315604B (en) | 2021-05-11 |
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