CN219579087U - Spherical clamping mechanism and wing penetrating plate guider - Google Patents

Abstract

The spherical clamping mechanism and the wing penetrating plate guide device are characterized in that a central hole is formed in the outer cylinder along the axial direction, and an internal thread is formed in the inner wall of the central hole; the rear end of the central hole is communicated, and the front end of the central hole is provided with a cavity for accommodating the ball; the outer wall of the ejector rod is provided with an external thread corresponding to the internal thread; the tool is provided with a sphere which is placed into the cavity from the opening of the side wall of the outer cylinder; the ejector rod is screwed to make the front part of the ejector rod contact with the ball body and fix the tool. The tool is a wing penetrating plate guider. According to the utility model, the spherical pair mechanism formed by the sphere and the cavity enables the tool to be adjusted within a certain angle so as to adapt to the requirement of free hand operation; the pushing groove with smaller width can lock the sphere in the cavity completely, so as to play a role in stabilizing the structure; the opening on the front end surface of the outer barrel enables the tool to rotate forwards; the anti-skid lines are beneficial to rotating the ejector rod and holding the outer cylinder.

Description

Spherical clamping mechanism and wing penetrating plate guider

Technical Field

The utility model relates to a medical instrument for dental implantation surgery, in particular to a spherical clamping mechanism and a wing penetrating plate guider.

Background

The wing-penetrating implant operation implants two implants (long implants) with special lengths into the cheekbones and winged bones with best bones of human body so as to enhance the overall stability of the implant; and other common implants are implanted by matching with the anterior dental region abutment. In a trans-pterygoid procedure, the ideal installation site for a long implant is to pass completely through the alveolar ridge, maxillary tuberosity and the whole layer of the two processes of the maxillary posterior teeth and into the pterygoid pit; the position of the wing-shaped protrusion is required to pass through the tail end of the upper jaw, and the posture of the long implant body is provided with an angle. The hole with a specific angle is prepared at the position, and the technical operation threshold is high and strict and accurate requirements are met. When planting in the wing penetrating plate area in the free hand state, the angle deviation easily occurs, so that the planting position and the direction are inaccurate, the wing penetrating plate is failed to plant, and serious operation complications are even caused. The failure rate under free hand operation is therefore high.

The existing positioning auxiliary equipment for conventional dental implant surgery is generally provided with a positioning hole with a certain angle on a planar substrate. And some of the devices adopt handles to carry out handheld operation, but the angles of the handles and the positioning tools are fixed, so that the devices cannot be flexibly adjusted in use, the operation is inconvenient, and the success rate of implantation is not facilitated. CN202222243801.3 discloses a wing-penetrating plate planting guide, the base plate is provided with a bevel edge, and the bevel edge is connected with a bevel plate which is inclined downwards relative to the lower end surface of the base plate; the inclined plate is provided with a guide cylinder, the cylinder body of the guide cylinder penetrates through the plate surface of the inclined plate, and the inclined guide cylinder is arranged on the base plate, so that the gesture/angle of the drill needle is fixed during penetration, and the operation of preparing a hole is facilitated.

Disclosure of Invention

The utility model aims to solve the existing problems and aims to provide a spherical clamping mechanism and a wing penetrating plate guider for planting, positioning and orienting in a wing plate area.

In order to achieve the above purpose, the technical scheme adopted by the utility model provides a spherical clamping mechanism for fixing a tool in an angle-adjustable manner, which comprises an outer cylinder and an ejector rod. Wherein: the inner part of the outer cylinder is axially provided with a central hole, and the inner wall of the central hole is provided with internal threads; the rear end of the central hole is communicated, and the front end of the central hole is provided with a cavity for accommodating the ball; the outer wall of the ejector rod is provided with an external thread corresponding to the internal thread; the tool is provided with a sphere which is placed into the cavity from the opening of the side wall of the outer cylinder; the ejector rod is rotated to enable the front end of the ejector rod to be in contact with the ball body, and the tool is tightly pressed and fixed. The side wall of the outer cylinder also comprises a pushing groove, the pushing groove is axially arranged at the front end of the opening, and the width of the pushing groove is smaller than the diameter of the sphere.

Wherein, the front end face of the outer cylinder is provided with an opening for the tool to rotate forwards, and the opening is communicated with the pushing groove. Wherein the width of the opening is consistent with that of the pushing groove.

Wherein, the spheroid locates the side of instrument rear end.

The tool is connected with the ball body through the connecting rod.

Wherein, the outer wall of the outer cylinder or the post rod body of the post rod is provided with anti-skid patterns.

Wherein, the front end of the ejector rod is provided with a spherical groove corresponding to the modeling of the outer wall of the sphere.

The utility model also provides a wing penetrating plate guider, the tool comprises a base plate, the front end of the base plate is provided with a guide cylinder, an inclined angle is arranged between the guide cylinder and the base plate, and an inner hole of the guide cylinder penetrates through the plate surface of the guide cylinder; the base plate body is also provided with a sphere, and the sphere is rotatably connected with the handle through any one of the spherical clamping mechanisms.

Wherein the rear end of the ejector rod is connected with the handle.

Wherein, the angle between the guide cylinder and the base plate is 45-60 degrees.

Compared with the prior art, the spherical auxiliary mechanism formed by the sphere and the cavity realizes rotatable connection, so that a tool can be adjusted in a certain angle and then fixed, thereby meeting the requirements in different use environments in free hand operation; when the ejector rod moves forwards, the pushing groove with smaller width can lock the sphere in the cavity completely and is not easy to fall out, so that the structure is stable; the opening on the front end surface of the outer barrel enables the tool to rotate forwards; the anti-skid lines are beneficial to rotating the ejector rod and holding the outer cylinder.

Drawings

FIG. 1 is a schematic structural view of a spherical clamping mechanism;

FIG. 2 is a cross-sectional view of the outer barrel;

FIG. 3 is a perspective view of the outer barrel;

FIG. 4 is a cross-sectional view of a carrier rod;

FIG. 5 is a perspective view of the ejector pin;

FIG. 6 is a schematic view of the configuration of the transom guide;

FIG. 7 is a perspective view of a transom guide;

FIG. 8 is a schematic structural view of a tool portion of the transom guide;

referring to the drawings, an outer cylinder 1, a central hole 11, a cavity 12, an opening 13, a push groove 14 and an opening 15; ejector rod 2, external thread 21, groove 22; sphere 3, base plate 31, guide cylinder 32.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings. Referring to fig. 1 to 5, fig. 1 to 5 show a spherical clamping mechanism according to an embodiment of the present utility model, which is mainly used for fixing a dental tool in an adjustable angle, and can also be used for fixing a manually operated tool in other fields.

The embodiment comprises an outer cylinder, a push rod and a sphere on the tool. Referring to fig. 2 and 3, a central hole is axially formed in the outer cylinder, and an inner wall of a rear section of the central hole is provided with an inner thread. The rear end of the central hole is communicated for the ejector rod to extend in; the front end face of the central hole is closed, and a cavity for accommodating the ball body is arranged in the front end of the central hole; the side wall of the outer cylinder at the cavity is provided with a through opening, and the diameter of the opening is slightly larger than that of the sphere, so that the sphere is conveniently placed in the cavity. The outer wall of the outer cylinder is divided into a rear section with larger diameter and a front section with smaller diameter, and the outer wall of the rear section is preferably provided with anti-skid patterns.

Referring to fig. 4 and 5, the outer wall of the ejector rod is provided with an external thread corresponding to the internal thread, and in this embodiment, the ejector rod is divided into two independent sections. The tool in the embodiment is provided with a sphere which is placed into the cavity from the opening of the side wall of the outer cylinder; the ejector rod moves forward by rotating the thread structure, and the front part of the ejector rod is contacted with the ball body to compress and fix the tool. Preferably, referring to fig. 2, the side wall of the outer cylinder further includes a push groove, and the push groove is axially disposed at the front end of the opening, that is, the rear end of the push groove is communicated with the opening, and the front end of the push groove extends to the front end of the cavity. The width of the pushing groove is smaller than the diameter of the sphere. In the process that the ejector rod moves forward, the sphere is pushed forward for a certain distance from the initial position of the opening, at the moment, the smaller pushing groove can limit the freedom degree of the sphere in the radial direction, the sphere is completely locked in the cavity by matching with other structures, the tool can be prevented from falling accidentally, and the function of stabilizing the structure is achieved.

Preferably, referring to fig. 3, an opening for the tool to rotate forward is arranged on the front end surface of the outer cylinder, and the opening is communicated with the pushing groove; the width of the opening preferably corresponds to the push slot. The open hole occupies half of the area of the front end face of the outer cylinder. The opening enables the tool to rotate forward, further increasing the adaptability of the tool.

In addition, the outer wall of the post rod body of the post rod is provided with another anti-slip pattern for manually rotating the post rod to axially move and preventing slipping.

Referring to fig. 6 and 7, another embodiment of the present utility model provides a transom guide. The tool part comprises a base plate, a guide cylinder is arranged at the front end of the base plate, an inclined angle is formed between the guide cylinder and the base plate, and inner holes of the guide cylinder penetrate through the end faces of the two ends of the guide cylinder and the base plate; the rear end of the plate body of the base plate is also provided with a sphere which is fixedly connected with the base plate through a connecting rod, and the sphere is rotatably connected/fixed with the handle at the rear end of the ejector rod through the spherical clamping mechanism in the embodiment.

Referring to fig. 8, the rear end of the base plate is provided with a connection rod, the root of which is connected perpendicularly to the board surface and extends in a radial direction with respect to the tool portion. The sphere is arranged at the end part of the connecting rod, namely, the sphere is radially arranged at the side edge of the tool, and the angle of the base plate relative to the handle can be adjusted through the spherical clamping mechanism, so that the operation of surgery is facilitated. The implantation site planted in the trans-pterygoid region is usually 5mm in front of the maxillary tuberosity and in the distal middle of the second molar, the included angle between the implantation direction and the plane of approach is between 45 and 60 degrees, and the included angle between the implantation direction and the sagittal plane is between 35 and 40 degrees. Preferably, referring to fig. 8, the guide cylinder is inclined at an angle of 45-60 degrees to the base plate, in this embodiment 45 degrees, and at the same time is inclined 45 degrees to the rear of the tool part. The arrangement of the angles is more beneficial to operation. Further, the inner hole of the guide cylinder is 2.2mm, and the length of the base plate is 22mm.

The embodiments of the present utility model have been described above with reference to the accompanying drawings and examples, which are not to be construed as limiting the utility model, but rather as modifications, variations or adaptations thereof may be made by those skilled in the art within the scope of the appended claims.

Claims (10)

1. A spherical fixture for angularly adjustable fixing means, characterized in that: comprises an outer cylinder and an ejector rod, wherein: the inner part of the outer cylinder is axially provided with a central hole, and the inner wall of the central hole is provided with internal threads; the rear end of the central hole is communicated, and the front end of the central hole is provided with a cavity for accommodating the ball;

the outer wall of the ejector rod is provided with an external thread corresponding to the internal thread;

the tool is provided with a sphere which is placed into the cavity from the opening of the side wall of the outer cylinder; the ejector rod is rotated to enable the front end of the ejector rod to be in contact with the ball body, and the tool is tightly pressed and fixed.

2. The ball-shaped clamping mechanism of claim 1, wherein: the side wall of the outer cylinder also comprises a pushing groove which is axially arranged at the front end of the opening, and the width of the pushing groove is smaller than the diameter of the sphere.

3. The ball-shaped clamping mechanism of claim 2, wherein: the front end surface of the outer cylinder is provided with an opening for the tool to rotate forwards, and the opening is communicated with the pushing groove; and/or the width of the opening corresponds to the push slot.

4. The ball-shaped clamping mechanism of claim 2, wherein: the sphere is arranged at the side edge of the rear end of the tool.

5. The ball-shaped clamping mechanism of claim 4, wherein: the tool is connected with the ball body through the connecting rod.

6. The ball-shaped clamping mechanism of claim 4, wherein: the outer wall of the outer cylinder and/or the post rod body of the post rod is provided with anti-skid patterns.

7. The ball-shaped clamping mechanism of claim 1, wherein: the front end of the ejector rod is provided with a spherical groove corresponding to the modeling of the outer wall of the sphere.

8. The wing penetrating plate guider is characterized in that: the tool comprises a base plate, wherein a guide cylinder is arranged at the front end of the base plate, an inclined angle is formed between the guide cylinder and the base plate, and an inner hole of the guide cylinder penetrates through the plate surface of the guide cylinder;

the base plate body is also provided with a sphere, and is rotatably connected with the handle through the spherical clamping mechanism according to any one of claims 1-7.

9. A transom guide as in claim 8, wherein: the rear end of the ejector rod is connected with the handle.

10. A transom guide as in claim 8, wherein: the angle between the guide cylinder and the base plate is 45-60 degrees.