CN211723492U - A operation instrument that is used for promoting art in maxillary sinus - Google Patents

Abstract

The utility model discloses an operation tool for maxillary sinus internal lifting, relating to the technical field of oral implantation, comprising a tool body, which comprises a cylinder part for stretching into a jaw, wherein the top end of the cylinder part is connected with a top end part for contacting with a maxillary sinus bottom mucosa, the top end part is an arc-shaped closed structure, and the top end part is provided with a plurality of water outlet holes; and the base is connected with the bottom of the cylinder part, and the outer diameter of the base is larger than that of the cylinder part. The technical scheme effectively protects the maxillary sinus floor mucosa and improves the success rate of maxillary sinus lifting.

Description

A operation instrument that is used for promoting art in maxillary sinus

Technical Field

The utility model relates to an oral planting technical field, in particular to an operation instrument that is used for promoting art in maxillary sinus.

Background

Severe chronic periodontitis, aggressive periodontitis and severe dental disease can lead to loss of maxillary posterior teeth and even alveolar bone defects. Long-term loss of maxillary posterior teeth cannot be repaired and treated, which not only causes disorder of occlusion relation, but also causes absorption of alveolar ridges and gasification of maxillary sinuses, so that Residual Bone Height (RBH) of the maxillary posterior teeth area is insufficient, and the application of implant repair is limited. The existing solution methods comprise two planting technologies of maxillary sinus floor bone increment and maxillary sinus avoidance, wherein the maxillary sinus floor increment planting technology comprises maxillary sinus floor lifting operation, and the maxillary sinus avoidance planting technology comprises short implants, oblique implants and the like. The maxillary sinus floor lifting operation is to lift the maxillary sinus mucosa after being stripped from the sinus floor and implant a bone graft material between the maxillary sinus mucosa and the maxillary sinus floor bone, thereby effectively increasing the height of the bone and meeting the requirements of the implantation, including the maxillary sinus outer lifting operation and the maxillary sinus inner lifting operation. The maxillary sinus external lifting is called as open maxillary sinus floor lifting, a flap is cut on the buccal side of a maxillary posterior tooth, a window is opened on the front wall of the maxillary sinus, and the lifting of the sinus floor mucosa is finished under direct vision; the maxillary sinus internal lifting operation is called closed maxillary sinus floor lifting operation, also called top-flushing maxillary sinus floor lifting operation, or called internal lifting operation, and refers to the operation of entering the way through alveolar ridge, applying special bone extrusion and bone top flushing instruments, lifting the mucosa at the sinus floor, implanting or not implanting bone powder, and implanting an implant at the same time or in a delayed way.

In realizing the utility model discloses the in-process, the inventor discovers that there is following problem at least among the prior art, and at present, the maxillary sinus promotes the art outward because of the operation wound is great, patient tolerance is lower, and the maxillary sinus deposits the bone nature and separates the time operation degree of difficulty great, and maxillary sinus mucosa perforation rate is high in the art, and clinical application is limited. The maxillary sinus floor lifting operation simplifies the operation process, has small wound to patients, but requires the patients to have rich clinical experience and sharp hand feeling. In recent years, various tools are applied to the maxillary posterior dental implant, such as endoscopic lifting, CAS-KIT lifting and the like, aiming at improving the effect of the apical stroke method. The endoscope lifting operation has higher requirement on the basis of minimally invasive surgery of an operator and high cost, and is difficult to popularize in large scale in clinic. The CAS-KIT tool lifting method is a special drill bit combined hydraulic maxillary sinus lifting method, the hydraulic method is used for lifting the inside of a maxillary sinus, as the maxillary sinus bottom mucous membrane is pushed, the perforation rate of the mucous membrane is reduced, and meanwhile, the maxillary sinus bottom mucous membrane is also opened, the maxillary sinus bottom height is improved, but the defects and the defects still exist, the used instrument has the water flow which directly impacts the maxillary sinus bottom mucous membrane from the top end of the instrument, and the impact causes stress to be concentrated in the central area of the maxillary sinus bottom mucous membrane in a narrow limited space, so that the perforation of the mucous membrane is caused.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the embodiment of the utility model provides an operation instrument for promoting art in maxillary sinus can be effectively with water pressure and the gentle even contact of mucosa all around of sinus floor, protects maxillary sinus floor mucosa, improves maxillary sinus lifting's success rate.

The surgical tool for maxillary sinus internal lifting operation comprises a tool body, wherein the tool body comprises a cylinder part which is used for stretching into a jaw bone, the top end of the cylinder part is connected with a top end part which is used for contacting with maxillary sinus bottom mucosa, the top end part is of an arc-shaped closed structure, and the top end part is provided with a plurality of water outlet holes; and the base is connected with the bottom of the cylinder part, and the outer diameter of the base is larger than that of the cylinder part.

In an alternative or preferred embodiment, the outlet opening is an angled side outlet.

In an alternative or preferred embodiment, an outlet pipe connected with the corresponding outlet hole is arranged inside the tool body, and the outlet pipe is obliquely arranged.

In an alternative or preferred embodiment, the water outlet holes are uniformly distributed along the circumference of the arc end surface of the top end part.

In an alternative or preferred embodiment, the outlet conduit inclination angle is defined as α, α e [45 °,60 ° ].

In an alternative or preferred embodiment, the minimum distance between two adjacent water outlet holes is not less than 0.3 mm.

In an alternative or preferred embodiment, the tip portion arc is 120 °.

In an alternative or preferred embodiment, the column portion is a cylinder, and the top end portion is connected with the column portion and is in arc transition.

In an alternative or preferred embodiment, the base outer diameter is larger than the bore diameter of the implant hole.

In an alternative or preferred embodiment, the tool body and the base are both of titanium metal construction.

Based on the technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: among the above-mentioned technical scheme, design the top portion into the enclosed construction of circular arc type, usable top portion and maxillary sinus bottom mucosa contact, the mucosa is difficult for damaging, and relate to a plurality of apopore, if further design the apopore for the apopore goes out water to the oblique side, make dynamic water current be the rotation type, can be effectively with water pressure and the gentle even contact of mucosa all around of sinus bottom, but the water direction water pressure impact pressure that disperses moreover protects maxillary sinus bottom mucosa reaches the maxillary sinus bottom mucosa of slow safe promotion, thereby improve maxillary sinus lift's success rate.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the invention;

fig. 3 is a top view of an embodiment of the invention;

fig. 4 is a schematic structural diagram of a use state of the embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the positional or orientational descriptions, such as the central, longitudinal, lateral, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, axial, radial, circumferential, etc., are based on the positional or orientational relationships shown in the drawings and are for convenience of description only and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, lower, inner, etc. are understood as including the present number unless otherwise specifically limited. Furthermore, the descriptions of first and second are only for the purpose of distinguishing between technical features, and are not to be construed as indicating or implying relative importance or implying any number or order of indicated technical features.

In the description of the present invention, unless otherwise clear and definite limitations, words such as setting, arranging, installing, connecting, linking, fixing, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention by combining the specific contents of the technical solutions.

In the description of the present invention, unless otherwise expressly limited, the first feature may be located above or below the second feature and may be directly in contact with the second feature or indirectly in contact with the first feature through intervening media. Also, a first feature may be directly above or obliquely above a second feature, or merely that the first feature is at a higher level than the second feature. A first feature may be directly below or obliquely below a second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 4, a surgical tool for maxillary sinus lifting comprises a tool body 1 and a base 2. Wherein the tool body 1 comprises a cylinder part 11 for extending into the jaw, as shown in fig. 4, the cylinder part 11 is inserted into the insertion hole of the jaw 4, the top end of the cylinder part 11 is connected with a top end part 12 for contacting with the maxillary sinus floor 5, and a gingival flap 3 is also shown in fig. 4 for easy understanding of those skilled in the art.

The top end part 12 is a circular arc-shaped closed structure, specifically, the radian of the top end part 12 is 120 degrees, the top end part 12 is in contact with the maxillary sinus floor mucous membrane 5, the mucous membrane is not easy to be damaged, the cylinder part 11 is a cylinder, the connecting position of the top end part 12 and the cylinder part 11 is in smooth transition, the whole surface of the cylinder part 11 is smooth, the top end part 12 is in smooth transition, no sharp edge exists, and no scratch and other influences are caused on tissues during implantation.

The top portion 12 is provided with a plurality of apopore 13, specifically speaking, apopore 13 is the oblique side direction play water, can refer to fig. 3, and apopore 13 is not located the positive center of top portion 12. In this embodiment, apopore 13 sets up six altogether, and along 12 circular arc terminal surface circumferences evenly distributed in top portion, in addition, two adjacent apopores 13 minimum distance are not less than 0.3 mm. In this embodiment, the aperture of each water outlet hole 13 is 0.4 mm.

Preferably, the tool body 1 is provided with an outlet conduit 14 connected to the corresponding outlet opening 13, the outlet conduit 14 is arranged obliquely, and further, the angle of inclination of the outlet conduit 14 is defined as α, α e [45 °,60 °. It can be understood that the outlet conduit 14 is obliquely arranged, so that the dynamic water flow is already in a rotary type before being ejected from the water outlet hole 13, and then is discharged through the inclined side of the corresponding water outlet hole 13, and the water outlet holes 13 discharging water from the inclined side can effectively increase the contact area of the water pressure and the maxillary sinus bottom mucosa 5, on the one hand, the water pressure can be effectively and evenly contacted with the maxillary sinus bottom mucosa 5, on the other hand, the water outlet direction can disperse the water pressure impact pressure, the maxillary sinus bottom mucosa 5 is protected, and the maxillary sinus bottom mucosa 5 is slowly and safely lifted. Because the maxillary sinus floor mucosa has certain elasticity and toughness in the maxillary sinus lifting surgery, the maxillary sinus floor mucosa 5 and the jaw bone 4 are completely separated by the lateral rotary water outlet, the contact force is soft and uniform, and no stress concentration area exists relatively, so that the maxillary sinus floor mucosa 5 can be effectively protected, and the success rate of the maxillary sinus lifting surgery is improved.

In clinic, the column body part 11 is designed with three different lengths, namely 2mm, 4mm and 6mm, because the conditions of severe alveolar bone absorption and the like and the required implant depth of the implant are considered, the column body part can be clinically replaced by tools with different lengths stage by stage, and the clinical operation requirement is met on the premise of protecting the maxillary sinus floor mucosa 5. In addition, the cylindrical portion 11 is designed to have a diameter of 3.3 mm.

And a base 2 connected to the bottom of the cylindrical portion 11, the outer diameter of the base 2 being larger than that of the cylindrical portion 11. Specifically, base 2 is the cylinder, and the diameter is 5mm, highly is 1.5mm, and 2 external diameters of base are greater than the aperture of planting the hole, can prevent rivers reflux, guarantee the regional water pressure intensity of interior promotion, have the sealing action.

Preferably, the tool body 1 and the base 2 are both titanium metal structures, so that the strength of the instrument is guaranteed and the instrument is not easy to deform on the premise of good tissue compatibility.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A surgical tool for maxillary sinus internal lifting, which is characterized in that: comprises that

The tool body (1) comprises a cylinder part (11) extending into a jaw bone, the top end of the cylinder part (11) is connected with a top end part (12) contacting with a maxillary sinus floor mucosa, the top end part (12) is of a circular arc-shaped closed structure, and the top end part (12) is provided with a plurality of water outlet holes (13); and

the base (2) is connected with the bottom of the cylinder part (11), and the outer diameter of the base (2) is larger than that of the cylinder part (11).

2. A surgical tool for maxillary sinus lifting procedure according to claim 1 wherein: the water outlet hole (13) is formed in the inclined side direction.

3. A surgical tool for maxillary sinus lifting according to claim 2 wherein: and a water outlet pipeline (14) connected with the corresponding water outlet hole (13) is arranged in the tool body (1), and the water outlet pipeline (14) is obliquely arranged.

4. A surgical tool for maxillary sinus lifting according to claim 3 wherein: the water outlet holes (13) are uniformly distributed along the circumference of the arc end surface of the top end part (12).

5. A surgical tool for maxillary sinus lifting according to claim 3 wherein: the inclination angle of the water outlet pipe (14) is defined as alpha, alpha epsilon [45 degrees and 60 degrees ].

6. A surgical tool for maxillary sinus lifting procedure according to claim 1 wherein: the minimum distance between two adjacent water outlet holes (13) is not less than 0.3 mm.

7. A surgical tool for maxillary sinus lifting according to any one of claims 1 to 6 wherein: the arc of the tip portion (12) is 120 °.

8. The surgical tool for maxillary sinus lifting of claim 7 wherein: the cylinder part (11) is a cylinder, and the top end part (12) is connected with the cylinder part (11) in an arc transition mode.

9. A surgical tool for maxillary sinus lifting according to any one of claims 1 to 6 wherein: the outer diameter of the base (2) is larger than the aperture of the implantation hole.

10. A surgical tool for maxillary sinus lifting according to any one of claims 1 to 6 wherein: the tool body (1) and the base (2) are both titanium metal structures.

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