CN210250122U

CN210250122U - Impression tray

Info

Publication number: CN210250122U
Application number: CN201920927681.4U
Authority: CN
Inventors: 孙媛元; 何莎敏; 吴轶群; 黄伟
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-04-07
Anticipated expiration: 2029-06-19

Abstract

The utility model provides a die tray, which comprises a tray and a tray handle. The tray handle is arranged on one side of the tray; the surface of the tray is provided with a concave sheet; the concave piece and the surface of the tray form a gap. Impression tray can guarantee to restore accurate nature and the curative effect of treatment, avoided waste such as material, time, manpower that secondary impression caused, improved patient's treatment comfort level greatly.

Description

Impression tray

Technical Field

The utility model relates to the field of medical equipment, in particular to impression tray.

Background

The mouth impression is a negative mold of the mouth related tissue, reflecting the condition of the mouth soft and hard tissues related to the repair. The model material is poured into the prepared impression to obtain a model completely consistent with the shape of the inner face of the mouth. The making of various oral cavity restorations generally needs to be finished by impression, pouring of models and then making on the models, so whether the impression and the models really reflect the oral cavity tissue condition is closely related to the accuracy of making the restorations, and the quality of the impression and the models is the first prerequisite for making good restorations. Impression technique is an operation technique for making a negative mold of the mouth related tissue by impression material and impression tray in clinical repair operation.

Currently, the impression tray which is used in clinic is a perforated tray, the tray surface has many pores, when the impression is made, the impression material such as alginate or silicon rubber overflows through the pores of the impression tray, after solidification, many retention pin structures are formed, and the separation of the impression material from the impression tray is prevented through a mechanical retention mode.

When an impression tray with impression materials is used by an oral physician in clinical operation, in order to ensure that the impression tray is positioned correctly and does not shift and deform before the impression materials are solidified, the back surfaces of the two sides of the back dental area of the impression tray are pressed by index fingers and middle fingers with uniform force conventionally, so that the pores of local areas are closed, and the impression materials cannot overflow from the pores smoothly and form a retention pin structure. This area is liable to cause deformation of the impression material or separation of the impression material from the impression tray, that is, mold release, due to the negative pressure suction force of the impression material and the tensile force of the undercut area when the impression tray is removed, due to lack of mechanical retention force. The local regional deformation or demolding of the impression material is easily ignored by doctors and technicians clinically, but the accuracy of the impression is greatly influenced, so that the accuracy and the treatment effect of the repair are threatened.

Therefore, it is necessary to provide an impression tray to improve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die tray can effectively avoid the impression material to warp and the emergence of drawing of patterns in clinical use, guarantees the accurate nature of die to guarantee prosthetic accurate nature and treatment.

In order to achieve the purpose, the utility model provides an impression tray, which comprises a tray and a tray handle, wherein the tray handle is arranged on one side of the tray; at least one concave sheet is arranged on one surface of the tray; the concave piece and the surface of the tray form a gap.

Further, the tray includes a first tray and a second tray that mate with each other.

Further, the first tray includes a first tray trough having a first sidewall and a second sidewall, at least one drain hole being disposed on at least one of the first sidewall and the second sidewall.

Further, the second tray includes: a second tray trough having a first sidewall and a second sidewall, at least one drain hole being disposed in at least one of the first sidewall and the second sidewall; and a tongue plate coupled to the second side wall of the second tray trough, the tongue plate having at least one drain hole.

Further, the concave sheet is made of metal.

Further, the concave pieces are connected to the tray surface by at least two fixtures.

In the impression tray of the present invention, the concave piece is added to the back surface of the tray, and the concave piece forms a gap with the surface of the tray, so that the gap can be used for holding the retention pin structure of the impression material. In use, the impression tray with the impression material is placed in position at the target site, and the index finger and the middle finger press against the concave piece with uniform force, and the impression material can smoothly form a retention pin structure in the gap between the concave piece and the surface of the impression tray. Therefore, the die tray can avoid the problem that the retention force is reduced due to the missing retention nail structure in a local area when the die tray is ensured to be smoothly in place and stable, thereby preventing the die from deforming or demoulding and ensuring the accurate effectiveness of the die. Therefore, the impression tray can guarantee to restore accurate nature and the curative effect of treatment, avoid waste such as material, time, manpower that secondary impression caused, improved patient's treatment comfort level greatly.

Drawings

Fig. 1 is a schematic structural diagram of a first tray according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second tray according to an embodiment of the present invention;

FIG. 3 illustrates a front view of the first tray of FIG. 1;

part numbers are as follows:

1. a first tray; 2. a second tray; 3. a first tray handle; 4. a second tray handle;

101. a first side wall of the first tray; 102. a tray slot of the first tray; 103 a second side wall of the first tray; 104. a concave piece; 105. a retention pin; 106. draining overflow holes;

201. a first side wall of the second tray; 202. a tray slot of the second tray; 203 a second side wall of a second tray; 204. a concave piece; 205. a retention pin; 206. draining overflow holes; 207. a tongue-shaped plate.

Detailed Description

The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for illustrating the embodiments of the present invention, and these embodiments can fully introduce the technical contents of the present invention to those skilled in the art, so that the technical contents of the present invention can be more clearly and easily understood. The present invention may, however, be embodied in many different forms of embodiments, and the scope of the present invention is not limited to the embodiments set forth herein.

The utility model provides a die tray, including tray and tray handle, the tray includes first tray 1 and second tray 2, and the tray handle includes first tray handle 3 and second tray handle 4. Correspondingly, a first tray handle 3 is arranged on one side of the first tray 1, and a second tray handle 4 is arranged on one side of the second tray 2. Preferably, in this embodiment, the first tray 1 is a mandibular tray and the second tray 2 is a maxillary tray.

As shown in fig. 1, fig. 1 is a schematic structural diagram of a first tray according to an embodiment of the present invention. The first tray 1 includes: a first side wall 101 of the first tray, a tray trough 102 of the first tray, a second side wall 103 of the first tray, a female tab 104 retention peg 105, and a drainage hole 106. Preferably, in this embodiment, the first side wall 101 of the first tray is a buccal labial wall, the tray trough 102 of the first tray is a dentition wall, and the second side wall 103 of the first tray is a palatal wall.

Specifically, the shape of the first tray 1 is similar to the shape of the human lower mouth, and in this embodiment, the shape of the first tray 1 is a U-shaped groove. The first tray handle 3 is connected to the head of the first tray 1, and the first tray handle 3 enhances the convenience and continuity of the first tray 1 in use. The inner side of the tray groove 102 of the first tray is provided with a second side wall 103 of the first tray, and the second side wall 103 of the first tray is fixedly arranged on the inner surface of the tray groove 102 of the first tray. The outer side of the tray groove 102 of the first tray is provided with a first side wall 101 of the first tray, and the first side wall 101 of the first tray is tightly attached to the tray groove 102 of the first tray.

The surfaces of the first side wall 101 of the first tray, the tray groove 102 of the first tray and the second side wall 103 of the first tray are provided with overflow holes 106, the overflow holes 106 are evenly distributed, and the overflow holes 106 are used for providing overflow paths for redundant impression materials. When a clinician takes an oral impression, the impression tray with the impression material is reasonably placed in a patient, the impression material such as alginate or silicon rubber overflows through the overflow holes 106 on the impression tray, and the solidified impression material forms a plurality of retention pin structures which can effectively prevent the impression material from being separated from the impression tray and improve the making accuracy of the oral impression.

Concave pieces 104 are respectively arranged at the tail parts of the tray grooves 102 of the first tray, and preferably, in the embodiment, the tail parts of the tray grooves 102 of the first tray are respectively provided with one concave piece 104. The concave piece 104 extends along the shape of the tray slot 102 of the first tray, and the concave piece 104 has a certain radian, preferably, the size and the radian of the concave piece 104 are matched with finger abdomen models with different sizes, so that the design improves the comfort of a doctor when pressing the concave piece and also improves the comfort of a patient. The arc top or base of the concave piece 104 is connected to the tray groove 102 of the first tray, and specifically, the concave piece 104 is connected to the tray groove 102 of the first tray by the retention pin 105. For the stability and practicality of the first tray 1, in the present embodiment, the female tab 104 is fixed by two retention pins 105.

As shown in fig. 2, fig. 2 is a schematic structural diagram of a second tray according to an embodiment of the present invention. The second tray 2 includes: a first side wall 201 of the second tray, a tray slot 202 of the second tray, a second side wall 203 of the second tray, female tab 204 retention pegs 205, drain hole 206, and tongue plate 207. Preferably, in this embodiment, the first side wall 101 of the second tray is a buccal lip wall, the tray well 202 of the second tray is a dentition wall, and the second side wall 203 of the second tray is a lingual side.

Specifically, the shape of the second tray 1 is similar to the shape of the oral cavity on the human body, and in the present embodiment, the shape of the second tray 2 is a U-shaped groove. The second tray handle 4 is connected to the head of the second tray 2, and the second tray handle 4 enhances the convenience and continuity of the second tray 2 in use. The inner side of the tray groove 202 of the second tray is provided with a second side wall 203 of the second tray, and the second side wall 203 of the second tray is fixedly arranged on the inner surface of the tray groove 202 of the second tray. A space is left in the middle of the second side wall 203 of the second tray, the tongue-shaped plate 207 is accommodated in the space and connected with the second side wall 203 of the second tray, and the tongue-shaped plate 207 is provided with an overflow hole 206, so that the redundant impression material can overflow smoothly. The first side wall 201 of the second tray is arranged on the outer side of the tray groove 202 of the second tray, and the first side wall 201 of the second tray is tightly attached to the tray groove 202 of the second tray.

The surfaces of the first side wall 201 of the second tray, the tray groove 202 of the second tray and the second side wall 203 of the second tray are provided with overflow holes 206, the overflow holes 206 are uniformly distributed, and the overflow holes 206 are used for providing overflow paths for redundant impression materials. When a clinician takes an oral impression, the impression tray with the impression material is reasonably placed in a patient, the impression material such as alginate or silicon rubber overflows through the overflow holes 206 on the impression tray, and the solidified impression material can form a plurality of retention pin structures which can effectively prevent the impression material from being separated from the impression tray, thereby improving the making accuracy of the oral impression.

Concave pieces 204 are further respectively arranged at the tail parts of the tray grooves 202 of the second tray, and preferably, in the embodiment, the tail parts of the tray grooves 202 of the second tray are respectively provided with one concave piece 204. The concave piece 204 extends along the shape of the tray slot 102 of the second tray, and the concave piece 204 has a certain radian, preferably, the size and the radian of the concave piece 204 are matched with finger abdomen models with different sizes, so that the design improves the comfort of a doctor when pressing the concave piece and also improves the comfort of a patient. The arc top or base of the female tab 204 is connected to the tray slot 102 of the second tray, and specifically, the female tab 204 is connected to the tray slot 202 of the second tray by the retention pin 205. For the stability and practicality of the second tray 2, in the present embodiment, the female tab 204 is fixed by two retention pins 205.

As shown in fig. 3, fig. 3 is a front view of a first tray according to an embodiment of the present invention. The female tab 104 is secured to the first tray 1 by means of a retaining pin 105, and in order to increase the stability of the female tab in use, the female tab 104 is made of metal. Since the concave piece 104 has a curvature, the concave piece 104 leaves a gap for receiving a fixture structure of an impression material with the surface of the first tray 1 except for a portion connected to the first tray 1.

When a doctor uses the impression tray with the impression material to be in place in a patient, the index finger and the middle finger are pressed on the concave piece 104 with uniform force, the impression material such as alginate or silicon rubber can smoothly overflow from the overflow hole 106 below the concave piece 104, and a retention pin structure is formed in a gap between the concave piece 104 and the surface of the first tray 1, so that the impression tray is guaranteed to be in place and stable smoothly, and the phenomenon that the retention force of a local area is reduced due to the absence of the retention pin structure to cause the deformation or demoulding of the impression is avoided.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An impression tray is characterized by comprising a tray and a tray handle,

the tray handle is arranged on one side of the tray;

at least one concave sheet is arranged on one surface of the tray;

the concave piece and the surface of the tray form a gap.

2. Impression tray according to claim 1, characterized in that the tray comprises a first tray and a second tray cooperating with each other.

3. The impression tray of claim 2, wherein the first tray comprises a first tray trough having a first sidewall and a second sidewall, at least one drain hole being disposed on at least one of the first sidewall and the second sidewall.

4. The impression tray according to claim 2, wherein the second tray comprises:

a second tray trough having a first sidewall and a second sidewall, at least one drain hole being disposed in at least one of the first sidewall and the second sidewall; and the number of the first and second groups,

a tongue plate coupled to the second side wall of the second tray trough, the tongue plate having at least one drainage hole.

5. Impression tray according to claim 1, characterized in that the material of the concave sheet is metal.

6. The impression tray of claim 1, wherein the concave sheet is connected to the tray surface by at least two retention pins.