CN220512929U

CN220512929U - Branch-resistant nailing device

Info

Publication number: CN220512929U
Application number: CN202321129956.2U
Authority: CN
Inventors: 梅俊勇; 孙贝; 郝艳杰
Original assignee: Yake Wisdom Beijing Technology Co ltd
Current assignee: Yake Wisdom Beijing Technology Co ltd
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2024-02-23
Anticipated expiration: 2033-05-11

Abstract

The utility model relates to the technical field of oral medical appliances, and provides an anchorage nail device, which comprises: the anchorage nail is suitable for being fixed on the jawbone; the anchorage nail seat is detachably connected with the anchorage nail and is suitable for fixing the oral cavity guide plate. According to the anchorage nail device, the anchorage nails fixed on the jaw bones and the anchorage nail seats detachably connected to the anchorage nails and suitable for fixing the oral cavity guide plates are arranged, so that the oral cavity guide plates can be rigidly connected with the jaw bones, the bone support type wearing guide plates are realized, the guide plate fixing precision is improved, a foundation is provided for subsequent navigation surgery, and the accurate tooth implantation operation is facilitated.

Description

Branch-resistant nailing device

Technical Field

The utility model relates to the technical field of oral medical appliances, in particular to an anchorage nail device.

Background

The oral implantation surgery is a precise operation under local anesthesia in a narrow space, and the accuracy of the surgery is poor due to factors such as the non-direct-view environment of the oral cavity, the narrow operation space, the lack of experience of doctors and the like. The wide application of the implantation guide plate technology in clinic improves the accuracy of oral implantation surgery to a certain extent, but still requires doctors to manually complete the surgery operation.

With the development of computer technology, the surgical navigation brings revolutionary changes to surgical operations with the advantages of accuracy, flexibility, minimally invasive and the like, leads modern medicine to move from 'intuitive medical treatment' to 'accurate medical treatment', and also provides directions for further development of oral medicine.

Related work and research of oral cavity planting navigation have been carried out at home and abroad at present, but the existing oral cavity planting navigation operation has a series of problems, and the requirements of oral cavity tooth planting operation cannot be well met. One common problem is that, for patients without teeth, even without dentition, wearing traditional oral guides, it is difficult to achieve high fixing accuracy, resulting in failure to perform accurate dental procedures.

Disclosure of Invention

The present utility model is directed to solving at least one of the technical problems existing in the related art. Therefore, the utility model provides an anchorage nail device.

The utility model provides an anchorage device, comprising:

the anchorage nail is suitable for being fixed on the jawbone;

the anchorage nail seat is detachably connected with the anchorage nail and is suitable for fixing the oral cavity guide plate.

According to the utility model there is provided an anchorage device, the anchorage comprising:

a threaded portion provided with external threads adapted to be drilled into the jawbone;

the head is provided with a first connecting hole, and the anchorage nail seat is suitable for being connected with the first connecting hole through a first fastener;

a neck adapted to connect the threaded portion and the head.

According to the utility model, the end of the threaded portion facing away from the neck is formed as a pointed end.

According to the anchorage nail device provided by the utility model, the anchorage nail seat is provided with the accommodating groove which is suitable for accommodating the head, and the inner contour of the accommodating groove is matched with the outer contour of the head.

According to the anchorage device provided by the utility model, the foolproof structure is formed on the section of the head along the plane perpendicular to the axis of the first connecting hole.

According to the anchorage nail device provided by the utility model, the second connecting hole is formed in one end, away from the accommodating groove, of the anchorage nail seat, and the oral cavity guide plate is suitable for being connected to the second connecting hole through the second fastening piece.

According to the anchorage pin device provided by the utility model, the second connecting hole is communicated with the accommodating groove.

According to the anchorage device provided by the utility model, the aperture of the second connecting hole is larger than that of the first connecting hole.

According to the anti-nailing device provided by the utility model, the sectional area of the middle part of the anti-nailing seat is larger than the sectional area of the two ends of the anti-nailing seat along the plane perpendicular to the axis of the second connecting hole.

According to the anchorage nail device provided by the utility model, the anchorage nail seat is provided with the chamfer.

According to the anchorage nail device, the anchorage nails fixed on the jaw bones and the anchorage nail seats detachably connected to the anchorage nails and suitable for fixing the oral cavity guide plates are arranged, so that the oral cavity guide plates can be rigidly connected with the jaw bones, the bone support type wearing guide plates are realized, the guide plate fixing precision is improved, a foundation is provided for subsequent navigation surgery, and the accurate tooth implantation operation is facilitated.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of an anchorage pin provided by an embodiment of the present utility model;

FIG. 2 is a schematic structural view of an anchorage seat according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a head portion along a plane perpendicular to the axis of the first connecting hole provided by an embodiment of the present utility model;

FIG. 4 is a schematic view of an assembly of an anchorage, an anchorage seat, and a first fastener provided in an embodiment of the present utility model;

FIG. 5 is a schematic view of an assembly of an embodiment of the present utility model providing an buttress pin, a buttress pin holder, a first fastener and a second fastener.

Reference numerals:

100. a anchorage nail; 110. a head; 111. a first connection hole; 120. a neck; 130. a threaded portion; 200. a support nail seat; 210. a receiving groove; 220. a second connection hole; 230. chamfering; 310. a first fastener; 320. and a second fastener.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The following describes the inventive buttress pin apparatus in connection with fig. 1-5.

As shown in fig. 1 to 5, an embodiment of the present utility model provides an anchorage device, which includes an anchorage 100 and an anchorage seat 200. Wherein the anchorage pin 100 is adapted to be secured to a jaw bone; the anchorage pin holder 200 is detachably connected to the anchorage pin 100, and the anchorage pin holder 200 is adapted to fix an oral guide plate.

According to the anchorage nail device provided by the embodiment of the utility model, the anchorage nail 100 fixed on the jaw bone and the anchorage nail seat 200 detachably connected with the anchorage nail 100 and suitable for fixing the oral cavity guide plate are arranged, so that the rigid connection between the oral cavity guide plate and the jaw bone can be established, the bone supporting type guide plate wearing is realized, the guide plate fixing precision is improved, a foundation is provided for the follow-up navigation operation, and the precise tooth implantation operation is facilitated.

Specifically, the anchorage pin 100 is a micro-screw implant, also called implant pin, bone pin, which is a device for fixing to the jawbone to provide support. To achieve a bone supported wear guide, the anchorage pin 100 needs to be fixed to the patient's oral jaw bone. In other words, the anchorage pin 100 is the basis for establishing a rigid connection between the oral guide plate and the jaw bone.

Further, as shown in fig. 1, the staple 100 can include a threaded portion 130, a head 110, and a neck 120. Wherein the threaded portion 130 is provided with an external thread adapted to drill into the jawbone; the head 110 is provided with a first connecting hole 111, and the anchorage 200 is adapted to be connected to the first connecting hole 111 by a first fastener 310; neck 120 is adapted to connect the threaded portion 130 and the head 110.

The threaded portion 130 is located at an end of the buttress pin 100 for drilling into the jawbone, and it is readily understood that after the buttress pin 100 is drilled into the jawbone, at least a portion of the threaded portion 130 is located within the jawbone. Preferably, an end of the threaded portion 130 facing away from the neck 120 is formed as a tip. By such arrangement, the force applied when the anchorage nail 100 is drilled into the jawbone is more concentrated, thereby enabling rapid and accurate fixation.

The neck 120 is a transition region where the head 110 is connected with the screw 130, is formed in a cylindrical shape, and can play a limiting role when the anchorage 100 is drilled into the jawbone. That is, the neck 120 may limit the depth of penetration of the branch pin 100 into the jawbone, thereby avoiding damage to the jawbone that may be caused by the branch pin 100 being drilled too deep.

The head 110 is located at the other end of the staple 100 facing away from the threaded portion 130. The head 110 is provided with a first coupling hole 111 for coupling the anchorage 200 by means of a first fastener 310. In this embodiment, the first fastening member 310 is a screw, and meanwhile, an internal thread adapted to the screw is provided in the first connection hole 111. In other embodiments, other fasteners such as studs may be used, as long as the effect of connecting and fixing the anchorage seat 200 can be achieved, and the present embodiment is not limited thereto.

According to the embodiment of the present utility model, the supporting pin seat 200 is provided with a receiving groove 210 adapted to receive the head 110, and an inner contour of the receiving groove 210 is adapted to an outer contour of the head 110.

As shown in fig. 2, 4 and 5, the anchorage seat 200 is provided with a receiving groove 210 for receiving the head 110. That is, in the case that the anchorage 200 is fixed to the anchorage 100, at least part of the head 110 is accommodated in the accommodating groove 210 to be in contact engagement with the anchorage 200. The inner contour of the receiving groove 210 is adapted to the outer contour of the head 110. Through such arrangement, the rotation or shaking of the anchorage nail seat 200 relative to the anchorage nail 100 can be reduced, so that the connection between the anchorage nail seat 200 and the anchorage nail 100 is more stable, and the fixing precision is improved.

According to the embodiment of the utility model, the cross section of the head 110 is formed with a foolproof structure along a plane perpendicular to the axis of the first connecting hole 111.

Fool-proofing means that the operator can finish the operation accurately without any mistake by using a limiting method for preventing errors from occurring without spending attention. As shown in fig. 3, the cross section of the head 110 is a non-centrosymmetric polygon along a plane perpendicular to the axis of the first connection hole 111. Through such arrangement, the anchorage pin holder 200 can quickly determine the unique installation direction when being connected to the anchorage pin 100, thereby ensuring that the position and the posture of the anchorage pin holder 200 in the mouth of a patient are completely consistent after the anchorage pin holder 200 is assembled and disassembled for a plurality of times before and during the operation, and providing a basis for the accurate registration operation of the navigation operation.

In this embodiment, the cross section of the head 110 is a shape in which one corner is cut off on the basis of a regular hexagon. During production and manufacture, the existing external hexagonal anchorage nails can be directly processed to obtain the structure, so that the effects of simplifying the production process and saving the cost can be achieved.

As shown in fig. 2, a second connecting hole 220 is provided at an end of the anchorage 200 facing away from the accommodating groove 210, and the oral cavity guide plate is adapted to be connected to the second connecting hole 220 by a second fastener 320.

The second coupling hole 220 is for coupling the mouth guide through the second fastener 320. By the arrangement, the anchorage nail seat 200 can form stable support for the oral guide plate, so that the guide plate fixing precision is improved, and the follow-up navigation operation is facilitated to be accurately performed. In this embodiment, the second fastening member 320 is a screw, and meanwhile, an internal thread adapted to the screw is disposed in the second connection hole 220. In other embodiments, other fasteners such as studs may be used to firmly connect the mouth guide, and those skilled in the art may make a reasonable choice according to the actual situation.

As shown in fig. 2, the second connection hole 220 is in communication with the receiving groove 210. In other words, the second connection hole 220 and the receiving groove 210 penetrate the entire anchorage 200. Therefore, the structure of the anchorage seat 200 can be simplified, thereby simplifying the production process flow and being beneficial to mass production.

According to an embodiment of the present utility model, as shown in fig. 4 to 5, the second connecting hole 220 has a larger aperture than the first connecting hole 111. Preferably, in the case that the head 110 is accommodated in the accommodating groove 210, the second connection hole 220 is coaxially disposed with the first connection hole 111 opened in the head 110. Through the arrangement, the second connecting hole 220 not only can play a role of connecting the oral cavity guide plate through the second fastening piece 320, but also can enable the first fastening piece 310 to pass through the second connecting hole 220 when the first fastening piece 310 is connected with the anchorage nail seat 200 through the first connecting hole 111, so that the overall structure of the anchorage device is simpler, the volume is more exquisite, and the follow-up navigation operation is facilitated.

As shown in fig. 2, the cross-sectional area of the middle portion of the anchorage 200 is larger than the cross-sectional area of both ends of the anchorage 200 along a plane perpendicular to the axis of the second connection hole 220.

That is, the body of the anchorage 200 has a truncated cone structure with different inclination angles of the upper and lower portions, and the cross-sectional area of the anchorage 200 is gradually reduced from the middle portion to the two ends along a plane perpendicular to the axis of the second connecting hole 220. Such a structure is not only attractive and convenient to use, but also can improve the space utilization rate of the anchorage nail seat 200, avoid shielding the sight, and facilitate the operation in the operation process.

According to an embodiment of the present utility model, the support pin seat 200 is provided with a chamfer 230.

As shown in fig. 2, 4 and 5, a chamfer 230 is further provided on the outer contour surface of the anchorage seat 200, so as to provide obvious geometric features in the photographed medical image, and facilitate the later registration operation. In this embodiment, the chamfer 230 is disposed at one end of the anchorage seat 200 with the second connecting hole 220. Of course, the location, size, shape, etc. of the chamfer 230 can be changed by those skilled in the art in practicing the present utility model according to actual needs, as long as it can function to provide apparent geometric features in the captured medical images.

The following describes a method for using the anchorage device provided by the embodiment of the utility model.

The fixation of the anchorage 100 is first performed, and a tool is used to apply torque to the head 110, driving at least part of the threaded portion 130 into the jawbone of the patient for fixation. Then, the anchorage holder 200 is fixed, the accommodating groove 210 is matched with the head 110, the anchorage holder 200 is connected with the anchorage 100 through the first fastener 310, and the medical image is shot. In some cases, the number of the anchorage nails 100 may be increased, using a plurality of anchorage nails 100 as a basis and fixing the anchorage nails seats 200 accordingly, to provide a more stable and reliable connection for the oral guide plate. Then, the mouth guide (not shown) is coupled to the second coupling hole 220 by the second fastener 320, and the mouth guide is fixed to the anchorage 200. In the case of a plurality of the anchorage nails 100, the above-described operation is repeated. Therefore, stable and reliable rigid connection from the jawbone of a patient to the oral cavity guide plate can be established, the bone support type wearing guide plate is realized, the guide plate fixing precision is improved, a foundation is provided for navigation operation, and the precise tooth implantation operation is facilitated.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An anchorage device, comprising:

the anchorage nail is suitable for being fixed on the jawbone;

the anchorage nail seat is detachably connected with the anchorage nail and is suitable for fixing the oral cavity guide plate;

the anchorage nail comprises a head part provided with a first connecting hole, and the anchorage nail seat is suitable for being connected with the first connecting hole through a first fastener;

a foolproof structure is formed on the section of the head of the anchorage pin along a plane perpendicular to the axis of the first connecting hole;

the anchorage nail seat is provided with an inclined plane.

2. The staple device of claim 1 wherein the staple further comprises:

a neck adapted to connect the threaded portion and the head.

3. The anti-stapling device according to claim 2, wherein an end of the threaded portion facing away from the neck is formed as a pointed end.

4. The anti-nailing device according to claim 2, wherein the anti-nailing seat is provided with a containing groove which is suitable for containing the head, and the inner contour of the containing groove is matched with the outer contour of the head.

5. The device according to claim 4, wherein the end of the anchor block facing away from the receiving slot is provided with a second attachment hole, and the mouth guide is adapted to be attached to the second attachment hole by a second fastener.

6. The anti-stapling device according to claim 5, wherein the second connection hole is in communication with the receiving groove.

7. The staple device of claim 5 wherein the second attachment hole has a larger pore size than the first attachment hole.

8. The device of claim 5, wherein the cross-sectional area of the middle portion of the anchor block is greater than the cross-sectional area of the ends of the anchor block along a plane perpendicular to the axis of the second attachment hole.