Adjustable size denture flasking tray apparatus

Abstract

The utility model discloses a tooth holder mould drawing tray device of adjustable size, including operation handle, U type tray and adjusting component, operation handle is connected in the middle part of U type tray back, adjusting component includes support block, left pull rope, right pull rope and pull component, support block is located in the middle part in U type tray, and its left end surface has left through hole, and its right end surface has right through hole, and the rear end of operation handle is forward and has the pull channel that extends to the inside of U type tray and the inside of support block and is connected with left through hole, right through hole, pull component is located in the rear end of pull channel, and left pull rope and right pull rope are all worn in pull channel, and the rear end all is connected to pull component, and the front end of left pull rope is worn and is connected to the left front part of U type tray through left through hole, and the front end of right pull rope is worn and is connected to the right front part of U type tray through right through hole, effect: not divide medium, small size model, only set up a application to be used for the patient of different size of dental arch left and right size, and use cost greatly reduces, and make use of adaptability and use versatility are strong.

Description

Technical Field

[0001] This utility model relates to the field of medical care products technology, and in particular to an adjustable-size dental impression tray device. Background Technology

[0002] In the dental departments of major hospitals, a U-shaped tray is usually used when taking dental impressions from patients. The impression is applied to the inside of the tray, and then the tray is placed into the patient's mouth. The patient bites down with their upper or lower teeth to leave an impression. The U-shaped tray is then removed, thus completing the dental impression collection.

[0003] However, different patients have different left and right dimensions of their dental arches, which makes it necessary to prepare U-shaped trays of different sizes to select and use according to actual needs. When using them, the left and right dimensions of the patient's dental arches are measured in advance, and then the appropriate size of the U-shaped tray is selected for matching.

[0004] However, based on the physiological structure of the human body, the difference in the left and right dimensions of most patients' dental arches is not significant. This means that in practical applications, the large, medium, and small U-shaped trays appear to have similar overall dimensions. Furthermore, they are usually stored together in a medical drawer, making them difficult to distinguish when needed. When retrieving them, it is necessary to measure whether their left and right dimensions match the patient's dental arch dimensions. This significantly increases the selection time. In addition, setting up large, medium, and small U-shaped trays also increases design and production costs. As a result, it is cumbersome, laborious, and costly to use.

[0005] In response, the inventor of this patent, combining clinical experience and reflecting on the problems encountered in clinical work, reviewed a large amount of scientific research data and literature, and conducted a novelty search to gradually conceive and design this application in order to solve the relevant technical problems. Utility Model Content

[0006] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, the purpose of this invention is to provide a size-adjustable dental impression tray device.

[0007] To achieve one of the above objectives, an adjustable dental impression tray device according to an embodiment of the present utility model includes an operating handle, a U-shaped tray with an open front end, and an adjusting member for adjusting the distance between the left and right sides of the front half of the U-shaped tray to adjust the size of the U-shaped tray.

[0008] The operating handle is connected to the rear middle of the U-shaped tray; the adjusting component includes a support block, a left pull rope, a right pull rope, and a pulling component for pulling the left pull rope and the right pull rope backward;

[0009] The support block is fixed forward in the middle of the U-shaped tray, with a left through hole on its left end face and a right through hole on its right end face; the rear end of the operating handle has a pulling channel extending forward into the interior of the U-shaped tray and the support block and connecting the left and right through holes; the pulling member is located at the rear end of the pulling channel; the left and right pull ropes are both threaded through the pulling channel, and their rear ends are both connected to the pulling member; the front end of the left pull rope passes through the left through hole and connects to the front left part of the U-shaped tray, and the front end of the right pull rope passes through the right through hole and connects to the front right part of the U-shaped tray.

[0010] In addition, the size-adjustable dental impression tray device according to the above embodiments of the present invention may also have the following additional technical features:

[0011] According to one embodiment of the present invention, the upper surface of the U-shaped tray is provided with a plurality of die extrusion holes that extend through to its lower surface.

[0012] According to one embodiment of the present invention, an outer protective ring is provided around the outer edge of the upper end face of the U-shaped tray; an inner protective ring is provided around the inner edge of the upper end face of the U-shaped tray.

[0013] According to one embodiment of the present invention, the operating handle, the U-shaped tray, the outer protective enclosure, and the inner protective enclosure are all made of plastic.

[0014] According to one embodiment of the present invention, a left metal piece is fixedly attached to the left front part of the inner enclosure facing the left front part of the outer enclosure, and a left connecting hole facing the left metal piece is opened on the left front part of the inner enclosure facing away from the left front part of the outer enclosure; a right metal piece is fixedly attached to the right front part of the inner enclosure facing the right front part of the outer enclosure, and a right connecting hole facing the right metal piece is opened on the right front part of the inner enclosure facing away from the right front part of the outer enclosure.

[0015] The front end of the left pull rope passes through the left through hole and is connected to the left metal plate through the left connecting hole; the front end of the right pull rope passes through the right through hole and is connected to the right metal plate through the right connecting hole.

[0016] According to one embodiment of the present invention, the traction component includes a screw bolt, a connecting rod, and a guide block with a rotating groove opened on the rear end face;

[0017] The pulling channel includes a twisting channel, a guide channel, and a rope passage channel connected sequentially from back to front;

[0018] The outer diameter of the connecting rod is smaller than the outer diameter of the screw and the outer diameter of the guide block. The rear end of the connecting rod is connected to the front end of the screw. The front end of the connecting rod has an outer edge protruding outward. The outer edge is rotatably locked in the rotating slot.

[0019] The front half of the screw is threaded into the screwing channel, the connecting rod and the guide block are limited in the guide channel, and the guide block is slidable back and forth but not rotatable and is locked in the guide channel; the rear ends of the left pull rope and the right pull rope both pass through the rope passage and are connected to the front end of the guide block.

[0020] According to one embodiment of the present invention, the longitudinal section of the guide block and the longitudinal section of the guide channel are both formed into square, triangular or other non-circular structures.

[0021] According to one embodiment of the present invention, the left metal plate, the left connecting hole, the right metal plate, the right connecting hole, the left through hole, and the right through hole are evenly arranged in multiples from front to back; the left pull rope and the right pull rope are each provided in multiples.

[0022] According to one embodiment of the present invention, the upper front part of the operating handle is cut downward to form a clearance opening for avoiding the lips, and the outer surface of the operating handle is provided with anti-slip texture.

[0023] According to one embodiment of the present invention, the front-to-back dimensions of the rear center of the U-shaped tray are greater than the left-to-right width of its left front portion and the right-to-right width of its right front portion, so that the rear center forms a large-sized mold-taking space in the front-to-back direction.

[0024] The beneficial effects of this utility model are:

[0025] Firstly, the adjustable dental impression tray device provided in this application, in practical implementation, does not have different sizes (small, medium, and large) in its pre-set configuration. Only one model is available, allowing it to be used by patients with varying left and right arch sizes. This significantly reduces usage costs and enhances adaptability and versatility. Furthermore, since only one model is available, compared to the prior art, medical personnel do not need to differentiate between large, medium, and small sizes when using this application, greatly reducing processing time. When using this application, after measuring the left and right widths of the patient's dental arch, the distance between the left and right front parts of the U-shaped tray can be quickly adjusted to match the corresponding patient's dental arch width. The operation is effortless, making this application easy to use and highly flexible.

[0026] Secondly, the front-to-back dimensions of the dental arch vary from patient to patient. This application aims to make the front-to-back dimension of the rear middle part of the U-shaped tray larger than the left and right front widths, thus creating a large impression space in the front-to-back direction. In this way, regardless of the size of the patient's dental arch, the impression can be left on the impression placed in the large impression space in the middle of the dental arch as much as possible. This makes the application more comprehensive and reliable in use.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the adjustable-size dental impression tray device of this utility model. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the overall structure of the adjustable-size dental impression tray device of this utility model. Figure 2 ;

[0031] Figure 3 This is a cross-sectional view of the adjustable-size dental impression tray device of this utility model;

[0032] Figure 4 yes Figure 3 Enlarged view of E in the middle;

[0033] Figure label:

[0034] 1000 adjustable dental impression tray device;

[0035] Operating handle 10;

[0036] Avoidance point 101;

[0037] Anti-slip texture 102;

[0038] 20 U-shaped trays;

[0039] Enamel extrusion hole 201;

[0040] Outer enclosure 202;

[0041] Inner enclosure 203;

[0042] Left metal plate 2031;

[0043] Left connecting hole 2032;

[0044] Right metal plate 2033;

[0045] Right connector hole 2034;

[0046] Large mold-taking space 204;

[0047] Adjustment component 30;

[0048] Support block 301;

[0049] Left via 3011;

[0050] Right via 3012;

[0051] Left pull rope 302;

[0052] Right pull rope 303;

[0053] 304 stainless steel for tension members;

[0054] Tighten 3041 bolts;

[0055] Connecting rod 3042;

[0056] Outer edge 30421;

[0057] Guide block 3043;

[0058] Rotating slot 30431;

[0059] Traction channel 40;

[0060] Twisting channel 401;

[0061] Guideway 402;

[0062] Rope crossing 403;

[0063] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0064] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0065] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0067] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0069] The adjustable dental impression tray device 1000 of this utility model is described in detail below with reference to the accompanying drawings.

[0070] Reference Figures 1 to 4 As shown, the size-adjustable dental impression tray device 1000 provided according to the embodiment of the present utility model includes an operating handle 10, a U-shaped tray 20 with an open front end, and an adjusting member 30 for adjusting the distance between the left and right sides of the front half of the U-shaped tray 20 to adjust the size of the U-shaped tray 20.

[0071] The operating handle 10 is connected to the rear middle of the U-shaped tray 20; the adjusting component 30 includes a support block 301, a left pull rope 302, a right pull rope 303, and a pulling component 304 for pulling the left pull rope 302 and the right pull rope 303 backward.

[0072] Furthermore, the support block 301 is fixed forward in the middle of the U-shaped tray 20, with a left through hole 3011 on its left end face and a right through hole 3012 on its right end face; the rear end of the operating handle 10 has a pulling channel 40 extending forward into the interior of the U-shaped tray 20 and the support block 301, and connecting the left through hole 3011 and the right through hole 3012; the pulling member 304 is located at the rear end of the pulling channel 40; the left pull rope 302 and the right pull rope 303 are both inserted into the pulling channel 40, and their rear ends are both connected to the pulling member 304; the front end of the left pull rope 302 passes through the left through hole 3011 and is connected to the front left part of the U-shaped tray 20, and the front end of the right pull rope 303 passes through the right through hole 3012 and is connected to the front right part of the U-shaped tray 20.

[0073] When the pulling member 304 is manipulated to pull the left pull rope 302 and the right pull rope 303 backward, the left front part and the right front part of the U-shaped tray 20 can be pulled closer to each other, and the distance between them can be reduced so that the size of the U-shaped tray 20 can be adjusted.

[0074] Based on the above, it is clear that in specific implementation, this application is mainly used as an adjustable-size dental impression tray device 1000.

[0075] Specifically, when applying this application, it can be pre-set to a large size to ensure that the distance between the left front part and the right front part of the U-shaped tray 20 is wide enough. Then, when taking a dental impression from a patient, the left and right widths of the dental arch are measured in advance. Then, the pulling member 304 is manipulated to pull the left pull rope 302 and the right pull rope 303 backward, so that the left front part and the right front part of the U-shaped tray 20 are pulled closer to each other, and the distance between them can be adjusted to match the left and right widths of the corresponding patient's dental arch. In this way, the impression can be applied inside the U-shaped tray 20 of this application. Then, the size-adjusted application is inserted into the mouth of the corresponding patient, and the patient bites down with their upper or lower teeth to leave a dental impression. Then, the U-shaped tray 20 of this application is removed, thus completing the collection of the dental impression of the corresponding patient.

[0076] Clearly, the use of this application as described above will have the following technical effects:

[0077] On the one hand, this application does not distinguish between medium and small size models when it is set up in advance. Only one application is set up, which can be used by patients with different sizes of the left and right sides of the dental arch, which greatly reduces the cost of use and makes it highly adaptable and versatile.

[0078] On the other hand, since this application only has one model, compared with the prior art, when using this application, medical staff do not need to distinguish between large, medium and small sizes, which can greatly reduce the time required for retrieval. When using this application, after measuring the left and right widths of the patient's dental arch, the distance between the left front part and the right front part of the U-shaped tray 20 described in this application can be quickly adjusted to make it fit the left and right widths of the corresponding patient's dental arch for use. The related operation is effortless, so this application is effortless to use and highly flexible.

[0079] Furthermore, through the above-mentioned optimized design, the whole constituted by this application is highly practical and has a good effect in use.

[0080] Furthermore, in specific implementation, in accordance with... Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the upper surface of the U-shaped tray 20 is provided with a plurality of die extrusion holes 201 that extend through to its lower surface.

[0081] Therefore, like conventional products of the same type, this application also has multiple impression extrusion holes 201, which makes it convenient for patients to bite down on the impression installed in the U-shaped tray 20 described in this application, and extrude a portion of the impression to facilitate the collection of the patient's tooth impression on the corresponding impression.

[0082] Furthermore, in this technical solution, we continue to compare... Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the outer edge of the upper end face of the U-shaped tray 20 is provided with an outer protective ring 202; the inner edge of the upper end face of the U-shaped tray 20 is provided with an inner protective ring 203.

[0083] Therefore, similar to conventional products of the same type, this application provides the outer protective enclosure 202 and the inner protective enclosure 203 to protect the mold placed inside the U-shaped tray 20, making it less likely for the mold to leak out and slip off.

[0084] Meanwhile, in this application, according to one embodiment of the present utility model, the operating handle 10, the U-shaped tray 20, the outer protective enclosure 202 and the inner protective enclosure 203 are all made of plastic.

[0085] In this regard, it is clear that, on the one hand, the operating handle 10, U-shaped tray 20, outer protective wall 202 and inner protective wall 203 made of plastic material have a certain degree of plasticity, making them easy to be pulled and thus facilitating the adjustment of the left and right width of the U-shaped tray 20 of this application. On the other hand, for patients, each person uses it, and the cost of plastic is low, making this application also have low usage costs.

[0086] Furthermore, in specific implementation, it is still necessary to refer to... Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, a left metal piece 2031 is fixedly attached to the left front part of the inner enclosure 203 facing the left front part of the outer enclosure 202, and a left connecting hole 2032 facing the left metal piece 2031 is opened on the left front part of the inner enclosure 203 facing away from the left front part of the outer enclosure 202; a right metal piece 2033 is fixedly attached to the right front part of the inner enclosure 203 facing the right front part of the outer enclosure 202, and a right connecting hole 2034 facing the right metal piece 2033 is opened on the right front part of the inner enclosure 203 facing away from the right front part of the outer enclosure 202.

[0087] The front end of the left pull rope 302 passes through the left through hole 3011 and is connected to the left metal piece 2031 through the left connecting hole 2032; the front end of the right pull rope 303 passes through the right through hole 3012 and is connected to the right metal piece 2033 through the right connecting hole 2034.

[0088] Therefore, it is clear that since the U-shaped tray 20 is made of plastic, it is easy to tear when simply connected and pulled with a rope. Therefore, this application provides auxiliary pulling by setting the left metal plate 2031 and the right metal plate 2033. The contact area between the left metal plate 2031 and the side of the inner guard 203 facing the left front of the outer guard 202 is large, making the left front of the inner guard 203 less likely to tear, and thus the left front of the U-shaped tray 20 is less likely to tear. Similarly, the contact area between the right metal plate 2033 and the side of the inner guard 203 facing the right front of the outer guard 202 is also large, making the right front of the inner guard 203 less likely to tear, and thus the right front of the U-shaped tray 20 is also less likely to tear.

[0089] Furthermore, through the above-mentioned optimized design, the whole constituted by this application has good stability and reliability in use.

[0090] Preferably, in this technical solution, compared with Figure 3 and Figure 4 As shown, according to one embodiment of the present utility model, the tensioning member 304 includes a screw bolt 3041, a connecting rod 3042, and a guide block 3043 with a rotating groove 30431 opened on the rear end facing forward;

[0091] The pulling channel 40 includes a twisting channel 401, a guide channel 402 and a rope passage channel 403 connected sequentially from back to front;

[0092] Furthermore, the outer diameter of the connecting rod 3042 is smaller than the outer diameter of the screw 3041 and the outer diameter of the guide block 3043. The rear end of the connecting rod 3042 is connected to the front end of the screw. The front end of the connecting rod 3042 has an outer edge 30421 protruding outward. The outer edge 30421 is rotatably locked in the rotating slot 30431.

[0093] Based on this, in this application, the front half of the screw-on bolt 3041 is threaded into the screw-on channel 401, the connecting rod 3042 and the guide block 3043 are limited within the guide channel 402, and the guide block 3043 is slidable back and forth but not rotatable and is locked in the guide channel 402; the rear ends of the left pull rope 302 and the right pull rope 303 both pass through the rope passage 403 and are connected to the front end of the guide block 3043.

[0094] Therefore, it is clear that when the screw bolt 3041 is turned backward, the guide block 3043 can be driven to move backward along the guide channel 402. In this way, the left pull rope 302 and the right pull rope 303 are pulled backward to bring the left front part and the right front part of the U-shaped tray 20 closer together, so that the distance between them is reduced and the size of the U-shaped tray 20 is adjustable.

[0095] Therefore, it is clear that when using this application, the size of the U-shaped tray 20 can be adjusted by turning the screw 3041. The operation is simple and convenient, making this application easy and quick to use.

[0096] Meanwhile, the front half of the screw bolt 3041 is threaded into the screw channel 401, making it difficult for it to loosen or fall off, thus ensuring reliable use.

[0097] Preferably, in this technical solution, according to an embodiment of the present invention, the longitudinal section of the guide block 3043 and the longitudinal section of the guide channel 402 are both formed into square, triangular or other non-circular structures.

[0098] Thus, the guide block 3043 is fitted into the guide channel 402 in a way that allows it to slide back and forth but does not rotate, so that the screw bolt 3041 is driven to move back and forth along the guide channel 402 during the spiral motion.

[0099] Furthermore, preferably, in this technical solution, the reference is still made. Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the left metal plate 2031, the left connecting hole 2032, the right metal plate 2033, the right connecting hole 2034, the left through hole 3011 and the right through hole 3012 are evenly arranged from front to back in multiples; the left pull rope 302 and the right pull rope 303 are each provided with multiples.

[0100] Thus, by setting multiple left metal plates 2031, left connecting holes 2032, right metal plates 2033, right connecting holes 2034, left through holes 3011, and multiple right through holes 3012, and by setting multiple left pull ropes 302 and right pull ropes 303, the left front part and the right front part of the U-shaped tray 20 will be subjected to force as evenly as possible when they are pulled towards each other, making the force stable and more reliable in use.

[0101] Furthermore, in a specific implementation, according to one embodiment of the present invention, the upper front part of the operating handle 10 is cut downward to form a clearance opening 101 for avoiding the lips, and the outer surface of the operating handle 10 is provided with anti-slip texture 102.

[0102] Thus, when this application is placed in the patient's mouth, the operating handle 10 will remain outside the patient's mouth, and the provided clearance opening 101 will avoid the patient's lips, making the application more considerate and more comfortable to use, and the connecting end of the operating handle 10 is less likely to injure the patient's lips.

[0103] Furthermore, in a specific implementation, according to one embodiment of the present invention, the front-to-back dimensions of the rear middle part of the U-shaped tray 20 are greater than the left-to-right width of its left front part and the right-to-right width of its right front part, so that the rear middle part forms a large-sized mold-taking space 204 in the front-to-back direction.

[0104] In this regard, it is clear that the front-to-back dimensions of the dental arch vary from patient to patient. This application aims to make the front-to-back dimensions of the rear middle part of the U-shaped tray 20 larger than the left and right front widths, thereby creating a large impression space 204 in the front-to-back direction. In this way, regardless of the size of the patient's dental arch, the dental arch can leave a dental impression on the impression placed in the large impression space 204, making this application more comprehensive and reliable in use.

[0105] It should be added that, in specific implementation, according to the adjustable dental impression tray device 1000 provided in the embodiment of this utility model, the left front part and the right front part of the U-shaped tray 20 are initially tilted outward to the left and right respectively.

[0106] Furthermore, in specific implementation, the adjustable dental impression tray device 1000 provided in this utility model embodiment has chamfered edges on the left and right front ends of the U-shaped tray 20 to make them smoother and less likely to injure the patient's oral mucosa and other tissues, thus making the application more comfortable to use.

[0107] Furthermore, it should be added that, in specific implementation, according to the adjustable dental tray impression tray device 1000 provided in this utility model embodiment, during specific assembly, the operating handle 10, U-shaped tray 20, outer guard 202, inner guard 203, support block 301, and the traction channel 40 can be injection molded in one piece. Subsequently, the screw bolt 3041, connecting rod 3042, guide block 3043, left pull rope 302, and right pull rope 303, which are connected together, are fully inserted into the traction channel 40 from back to front, so that the front end of the left pull rope 302 passes through the left through hole 3011, and... The left metal piece 2031 is connected to the left connecting hole 2032 to form an integral unit, and the front end of the right pull rope 303 passes through the right through hole 3012 and is connected to the right metal piece 2033 through the right connecting hole 2034 to form an integral unit. Finally, the left metal piece 2031 is attached and fixed to the front left side of the inner guard 203 facing the front left side of the outer guard 202, and the right metal piece 2033 is attached and fixed to the front right side of the inner guard 203 facing the front right side of the outer guard 202. In this way, this application can be easily assembled, making it effortless to manufacture the finished product.

[0108] Other embodiments, etc., will not be described here.

[0109] In summary, the adjustable dental impression tray device 1000 provided in this application, in practical implementation, does not differentiate between medium and small sizes during pre-setting. Only one model is provided, allowing it to be used by patients with different left and right arch sizes, thus significantly reducing usage costs and enhancing adaptability and versatility. Furthermore, since only one model is provided, compared to the prior art, medical personnel do not need to distinguish between large, medium, and small sizes when using this application, greatly reducing retrieval time. When using this application, after measuring the left and right widths of the patient's dental arch, the distance between the left and right front parts of the U-shaped tray 20 can be quickly adjusted to fit the corresponding patient's dental arch width. The operation is effortless, making this application easy to use and highly flexible.

[0110] Furthermore, the front-to-back dimensions of the dental arch vary from patient to patient. This application aims to make the front-to-back dimensions of the rear middle part of the U-shaped tray 20 larger than the left and right front widths, thereby creating a large impression space 204 in the front-to-back direction. In this way, regardless of the size of the patient's dental arch, the dental impression can be left on the impression placed in the large impression space 204 as much as possible in the middle of the dental arch. This makes the application more comprehensive and reliable in use.

[0111] Furthermore, the adjustable dental impression tray device 1000 provided in this application is indeed highly practical and has excellent performance, which makes this application inherently valuable for market promotion and will certainly be very popular and widely adopted.

[0112] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0113] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A size-adjustable dental impression tray device, characterized in that, It includes an operating handle, a U-shaped tray with an open front end, and an adjustment component for adjusting the distance between the left and right sides of the front half of the U-shaped tray to adjust the size of the U-shaped tray; The operating handle is connected to the rear middle of the U-shaped tray; the adjustment components include a support block, a left pull rope, a right pull rope, and a pulling component for pulling the left and right pull ropes backward; The support block is fixed forward in the middle of the U-shaped tray, with a left through hole on its left end face and a right through hole on its right end face; the rear end of the operating handle has a traction channel extending forward into the interior of the U-shaped tray and the support block and connecting the left and right through holes; the traction component is located at the rear end of the traction channel; both the left and right pull ropes pass through the traction channel, and their rear ends are connected to the traction component; the front end of the left pull rope passes through the left through hole and connects to the front left part of the U-shaped tray, and the front end of the right pull rope passes through the right through hole and connects to the front right part of the U-shaped tray.

2. The size-adjustable dental impression tray device according to claim 1, characterized in that, The upper surface of the U-shaped tray has multiple die extrusion holes that extend through to its lower surface.

3. The size-adjustable dental impression tray device according to claim 1, characterized in that, The upper surface of the U-shaped pallet is provided with an outer protective ring around the outer edge; the upper surface of the U-shaped pallet is provided with an inner protective ring around the inner edge.

4. The size-adjustable dental impression tray device according to claim 3, characterized in that, The operating handle, U-shaped tray, outer guardrail, and inner guardrail are all made of plastic.

5. The size-adjustable dental impression tray device according to claim 4, characterized in that, A left metal plate is fixedly attached to the left front part of the inner enclosure facing the left front part of the outer enclosure, and a left connecting hole facing the left metal plate is opened on the left front part of the inner enclosure facing away from the left front part of the outer enclosure; a right metal plate is fixedly attached to the right front part of the inner enclosure facing the right front part of the outer enclosure, and a right connecting hole facing the right metal plate is opened on the right front part of the inner enclosure facing away from the right front part of the outer enclosure. The front end of the left pull rope passes through the left through hole and connects to the left metal plate through the left connecting hole; The front end of the right pull rope passes through the right through hole and is connected to the right metal plate through the right connecting hole.

6. The size-adjustable dental impression tray device according to claim 5, characterized in that, The tensioning component includes a screw bolt, a connecting rod, and a guide block with a rotating slot at the rear end. The traction channel includes a twisting channel, a guide channel, and a rope passage channel connected sequentially from back to front; The outer diameter of the connecting rod is smaller than the outer diameter of the screw and the outer diameter of the guide block. The rear end of the connecting rod is connected to the front end of the screw. The front end of the connecting rod has an outer edge protruding outward, and the outer edge can be circumferentially rotated and locked in the rotating slot. The front half of the screw is threaded into the screwing channel, the connecting rod and the guide block are limited in the guide channel, and the guide block is locked in the guide channel in a way that can slide back and forth but cannot rotate; the rear ends of the left pull rope and the right pull rope both pass through the rope passage and are connected to the front end of the guide block.

7. The size-adjustable dental impression tray device according to claim 6, characterized in that, The longitudinal section of the guide block and the longitudinal section of the guide channel are both formed into square, triangular or other non-circular structures.

8. The size-adjustable dental impression tray device according to claim 5, characterized in that, Multiple left metal plates, left connecting holes, right metal plates, right connecting holes, left through holes, and right through holes are evenly arranged from front to back; multiple left and right pull ropes are also provided.

9. The size-adjustable dental impression tray device according to any one of claims 1-8, characterized in that, The upper front part of the handle is cut downward to form a clearance opening to avoid the lips, and the outer surface of the handle is provided with anti-slip texture.

10. The size-adjustable dental impression tray device according to any one of claims 1-8, characterized in that, The rear center of the U-shaped tray has a larger front-to-back dimension than its left-to-right front width and right-to-right front width, so that the rear center forms a large mold-taking space in the front-to-back direction.

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