Anti-slip zero-degree composite abutment wrench

Abstract

The utility model discloses an anti-slip zero-degree composite abutment wrench, which relates to the technical field of medical instruments, and comprises a first connecting part, an annular ring, a connecting seat, a second lower connecting part and an inner core, the abutment wrench is connected with a torque wrench through the first connecting part, the connection is tighter through the annular ring, and the abutment wrench is connected with an abutment through the second lower connecting part. The torque wrench is rotated to drive the abutment wrench to rotate so as to drive the abutment to rotate, so that the abutment is screwed, in the screwing process, the abutment wrench is prevented from slipping by inserting the inner core into the threaded hole of the abutment, and the end part of the inner core is arranged into different shapes so as to adapt to threaded holes of different models of abutments.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an anti-slip zero-degree composite base wrench. Background Art

[0002] When tightening the zero-degree composite abutment during dental implant surgery, since the zero-degree composite abutment has no central screw structure, the abutment itself needs to be rotated to achieve the tightening effect. In this case, a zero-degree composite abutment wrench is required.

[0003] There are two types of zero-degree composite abutment wrenches. One is a wrench-less screw structure. One end of the zero-degree composite abutment wrench is connected to a torque wrench, and the other end cooperates with the polygon on the conical surface of the zero-degree composite abutment. The zero-degree composite abutment wrench is rotated by the torque wrench to tighten the abutment. Since the polygon on the conical surface of the zero-degree composite abutment is short and the operating space in the oral cavity is small, the zero-degree composite abutment wrench cannot be guaranteed to be always perpendicular to the abutment. If it is slightly tilted, the zero-degree composite abutment wrench will slip.

[0004] The other is a wrench screw structure, but it is necessary to first match one end of the zero-degree composite abutment wrench with the polygon on the conical surface of the abutment, and then connect the wrench screw to the threaded hole on the upper end of the abutment to prevent the zero-degree composite abutment wrench from falling off. Finally, the other end is connected to the torque wrench. After tightening the abutment, the wrench screw needs to be removed in the mouth by hand. However, because the cap head of the wrench screw lengthens the length of the zero-degree composite abutment wrench and the oral space is small, it is very inconvenient to remove the wrench screw and prolongs the operation time. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-slip zero-degree composite base wrench to solve the problems raised in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An anti-slip zero-degree composite abutment wrench, the abutment wrench includes a No. 1 connecting part, an annular ring, a connecting seat, a No. 2 lower connecting part and an inner core, the No. 1 connecting part and the connecting seat are fixedly connected, the No. 2 lower connecting part and the connecting seat are fixedly connected, the inner core and the No. 2 lower connecting part are fixedly connected, the inner core and the connecting seat are fixedly connected, and the inner core and the No. 1 connecting part are fixedly connected.

[0008] The abutment wrench and the torque wrench are connected through the No. 1 connection part, and the annular ring makes the connection between the abutment wrench and the torque wrench tighter and not easy to loosen. The connection seat and the torque wrench fit together, so that the No. 1 connection part is inserted into the torque wrench, and the torque wrench can only slide onto the connection seat, to prevent the torque wrench from slipping during the twisting process, and the torque wrench from colliding with the teeth on both sides. The No. 2 lower connection part and the zero-degree composite abutment are connected, and the torque wrench is twisted, so that the abutment wrench drives the zero-degree composite abutment, thereby tightening the zero-degree composite abutment to the implant. During the tightening process of the abutment, the wrench and the abutment are slightly tilted, and are clamped in the threaded groove of the abutment through the inner core, to avoid slipping and sliding caused by tilting.

[0009] Furthermore, the inner core includes an end portion, a fixed portion and a No. 3 connecting portion, the end portion and the fixed portion are fixedly connected, the No. 2 lower connecting portion is provided with a matching groove, the inner core is placed in the matching groove, the fixed portion and the No. 3 connecting portion are fixedly connected, the fixed portion is placed in the matching groove, the No. 3 connecting portion and the No. 2 lower connecting portion are fixedly connected, the No. 3 connecting portion and the connecting seat are fixedly connected, and the No. 3 connecting portion and the No. 1 connecting portion are fixedly connected.

[0010] The inner core is guided into the threaded bottom hole of the abutment by the end portion, so that the wrench can be easily inserted into the abutment. Through the fixing portion, when the wrench and the abutment are slightly tilted during the tightening process of the abutment, the fixing portion will be stuck in the threaded hole to prevent the wrench from continuing to tilt, thereby preventing the wrench from slipping and sliding. Through the matching groove and the external polygon of the abutment, the wrench drives the abutment to rotate and tighten. It is connected to the wrench as a whole through the No. 3 connecting part, and the fixing portion is cylindrical and does not screw into the threaded bottom hole of the abutment, so that after the abutment is tightened, the abutment wrench can be slightly lifted to loosen the connection with the abutment.

[0011] Furthermore, the end portion is in a conical, spherical, arc-shaped or other shapes.

[0012] By setting the end portion to different shapes, such as conical, spherical and arc-shaped, the abutment wrench can adapt to different types of abutments, so that the abutment wrench can be selected according to different abutments.

[0013] Furthermore, the fixed connection mode of the third connection part is an integrated type or a split type.

[0014] By making the fixed connection method of the No. 3 connection part one-piece or split, for example, the split type can be connected through conventional connection methods such as threaded connection, thread + thread glue connection, riveted connection, welding, interference fit connection, etc., providing more options, so that operators can choose different connection methods according to different situations, thereby optimizing product performance.

[0015] Furthermore, the matching grooves are composed of a variety of shapes, and the shapes of the matching grooves are distributed along the vertical direction.

[0016] The mating grooves are composed of a variety of shapes, so that the mating grooves can match the shape of the outside of the abutment one by one, so that the mating grooves and the inserted abutment can fit tightly, thereby improving the stability of the connection and effectively transmitting the torque of the wrench to the abutment. The polygons on the conical surface of the abutment and the polygons of the mating grooves match, so that the abutment can rotate with the abutment wrench to achieve the tightening of the abutment.

[0017] Furthermore, the No. 1 connecting part is provided with an annular groove, the annular ring is placed on the annular groove, and the cross section of the No. 1 connecting part is hexagonal.

[0018] By installing the annular ring on the annular groove, the connection between the No. 1 connection part and the torque wrench is made tighter, and by setting the cross section of the No. 1 connection part to be hexagonal, it can be matched with the hexagonal inner corner of the torque wrench.

[0019] Furthermore, the connecting seat is provided with a plurality of protrusions, and the protrusions are distributed in a ring shape along the central axis.

[0020] The connector is provided with multiple protrusions, which fit the bottom surface of the torque wrench, increasing the contact area with the bottom surface of the torque wrench, preventing the adapter wrench from sliding or dislocating when torque is applied, and helping to disperse the stress of the torque wrench on the connector.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. Through the fixing part of the inner core, when the abutment wrench is tightening the abutment, it will not tilt slightly because the zero-degree composite abutment wrench cannot be guaranteed to be always perpendicular to the abutment, causing the zero-degree composite abutment wrench to slip or slip, thereby preventing the abutment wrench from slipping during the tightening process.

[0023] 2. Through the end of the inner core, guide the inner core into the threaded hole of the abutment, so that the abutment wrench can be easily inserted into the abutment. By setting the end to a conical, spherical, arc-shaped or other shapes, the abutment wrench can be adapted to different models of abutments.

[0024] 3. The end and fixing part of the inner core do not engage with the threaded hole of the abutment, so that the abutment wrench does not need to rotate the screw when installing and removing, which is more convenient and shortens the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the No. 1 connecting part and the connecting seat of this utility model;

[0027] Figure 3 This is a schematic diagram of the matching groove structure of this utility model;

[0028] Figure 4yes Figure 1 A magnified view of a part A;

[0029] In the figure: 1, connecting part No. 1; 11, annular groove; 2, annular ring; 3, connecting seat; 31, protrusion; 4, lower connecting part No. 2; 41, matching groove; 5, inner core; 51, end; 52, fixing part; 53, connecting part No. 3. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example: Figures 1-4 As shown, the utility model provides a technical solution for an anti-slip zero-degree composite abutment wrench, an anti-slip zero-degree composite abutment wrench, the abutment wrench includes a No. 1 connecting part 1, an annular ring 2, a connecting seat 3, a No. 2 lower connecting part 4 and an inner core 5, the No. 1 connecting part 1 and the connecting seat 3 are fixedly connected, the No. 2 lower connecting part 4 and the connecting seat 3 are fixedly connected, the inner core 5 and the No. 2 lower connecting part 4 are fixedly connected, the inner core 5 and the connecting seat 3 are fixedly connected, and the inner core 5 and the No. 1 connecting part 1 are fixedly connected.

[0032] The abutment wrench and the torque wrench are connected through the No. 1 connecting part 1, and the annular ring 2 makes the connection between the abutment wrench and the torque wrench tighter and not easy to loosen. The connecting seat 3 and the connecting seat 3 fit together, so that the No. 1 connecting part 1 is inserted into the torque wrench, and the torque wrench can only slide onto the connecting seat 3 to prevent the torque wrench from slipping during the twisting process and colliding with the teeth on both sides. The No. 2 lower connecting part 4 is connected to the zero-degree composite abutment, and the torque wrench is twisted, so that the abutment wrench drives the zero-degree composite abutment, thereby tightening the zero-degree composite abutment to the implant. During the tightening process of the abutment, the wrench and the abutment are slightly tilted, and are clamped in the threaded groove of the abutment through the inner core 5 to avoid slipping and sliding caused by tilting.

[0033] like Figure 1 and Figure 3 As shown, the inner core 5 includes an end portion 51, a fixing portion 52 and a third connecting portion 53, the end portion 51 and the fixing portion 52 are fixedly connected, the No. 2 lower connecting portion 4 is provided with a matching groove 41, the inner core 5 is placed in the matching groove 41, the fixing portion 52 and the No. 3 connecting portion 53 are fixedly connected, the fixing portion 52 is placed in the matching groove 41, the No. 3 connecting portion 53 and the No. 2 lower connecting portion 4 are fixedly connected, the No. 3 connecting portion 53 and the connecting seat 3 are fixedly connected, and the No. 3 connecting portion 53 and the No. 1 connecting portion 1 are fixedly connected.

[0034] The inner core 5 is guided into the threaded bottom hole of the abutment through the end portion 51, so that the wrench can be easily inserted into the abutment. Through the fixing portion 52, when the wrench and the abutment are slightly tilted during the tightening process of the abutment, the fixing portion 52 will be stuck in the threaded hole to prevent the wrench from continuing to tilt, thereby preventing the wrench from slipping and sliding. Through the matching groove 41 and the external polygon of the abutment, the wrench drives the abutment to rotate and tighten. It is connected to the wrench as a whole through the No. 3 connecting portion 53, and the fixing portion 52 is cylindrical and does not screw into the threaded bottom hole of the abutment, so that after tightening the abutment, the abutment wrench can be slightly lifted to loosen the connection with the abutment.

[0035] like Figure 1 As shown, the end portion 51 is in a conical, spherical, arc-shaped or other shapes.

[0036] By setting the end 51 to different shapes, such as conical, spherical and arc-shaped, the abutment wrench can adapt to different types of abutments, so that the abutment wrench can be selected according to different abutments with the end 51 having different shapes.

[0037] like Figure 1 As shown, the fixed connection mode of the third connection part 53 is an integrated type or a split type.

[0038] By making the fixed connection mode of the No.3 connection part 53 an integrated type or a split type, for example, the split type can be connected by conventional connection modes such as threaded connection, thread + thread glue connection, riveted connection, welding, interference fit connection, etc., more options are provided, so that the operator can choose different connection modes according to different situations, thereby optimizing the performance of the product.

[0039] like Figure 1 and Figure 3 As shown, the matching groove 41 is composed of various shapes, and the shapes of the matching groove 41 are distributed along the vertical direction.

[0040] The mating groove 41 is composed of a variety of shapes, so that the mating groove 41 can match the shape of the outside of the base one by one, so that the mating groove 41 and the inserted base can fit tightly, thereby improving the stability of the connection and effectively transmitting the torque of the wrench to the base. The polygon on the conical surface of the base and the polygon of the mating groove 41 match, so that the base can rotate with the base wrench to achieve the tightening of the base.

[0041] like Figure 4 As shown, the No. 1 connecting part 1 is provided with an annular groove 11 , the annular ring 2 is placed on the annular groove 11 , and the cross section of the No. 1 connecting part 1 is hexagonal.

[0042] By installing the annular ring 2 on the annular groove 11, the connection between the No. 1 connecting part 1 and the torque wrench is made tighter, and by setting the cross section of the No. 1 connecting part 1 to a hexagonal shape, it can match the hexagon socket of the torque wrench.

[0043] like Figure 2 As shown, the connecting seat 3 is provided with a plurality of protrusions 31 , and the protrusions 31 are distributed in a ring shape along the central axis.

[0044] The connecting seat 3 is provided with multiple protrusions 31, which fit the bottom surface of the torque wrench, thereby increasing the contact area with the bottom surface of the torque wrench, preventing the adapter wrench from sliding or dislocating when torque is applied, and helping to disperse the stress of the torque wrench on the connecting seat 3.

[0045] Working principle: The base wrench and the torque wrench are connected through the No. 1 connecting part 1, and the annular ring 2 makes the connection between the base wrench and the torque wrench tighter and not easy to loosen. The connecting seat 3 and the connecting seat 3 fit together with the torque wrench, so that the No. 1 connecting part 1 is inserted into the torque wrench, and the torque wrench can only slide onto the connecting seat 3. A plurality of protrusions 31 are provided through the connecting seat 3, and the protrusions 31 fit together with the bottom surface of the torque wrench to increase the contact area with the bottom surface of the torque wrench, thereby preventing the adapter wrench from sliding or dislocating when the torque is applied, and preventing the torque wrench from colliding with the teeth on both sides during the twisting process. The polygonal groove and the matching groove 41 are used. The polygonal fit of the tapered surface of the abutment allows the torque of the abutment wrench to be effectively transmitted to the abutment. The fixing portion 52 is guided into the threaded hole of the abutment through the end portion 51, so that the abutment wrench can be easily inserted into the abutment. The torque wrench is twisted, causing the abutment wrench to drive the zero-degree composite abutment to rotate, thereby tightening the zero-degree composite abutment to the implant. During the tightening process of the abutment, the fixing portion 52 is used to prevent the operator's force from making the abutment wrench and the abutment perpendicular. The fixing portion 52 can be clamped in the threaded groove of the abutment to avoid slippage and sliding caused by tilting. After tightening the abutment, the torque wrench is lifted upward to remove the abutment wrench.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. Anti-slip zero-degree composite abutment wrench, characterized by: The base wrench comprises a No. 1 connecting portion (1), an annular ring (2), a connecting seat (3), a No. 2 lower connecting portion (4) and an inner core (5); the No. 1 connecting portion (1) and the connecting seat (3) are fixedly connected; the No. 2 lower connecting portion (4) and the connecting seat (3) are fixedly connected; the inner core (5) and the No. 2 lower connecting portion (4) are fixedly connected; the inner core (5) and the connecting seat (3) are fixedly connected; and the inner core (5) and the No. 1 connecting portion (1) are fixedly connected.

2. The anti-slip zero-degree composite abutment wrench according to claim 1, characterized in that: The inner core (5) comprises an end portion (51), a fixing portion (52) and a third connecting portion (53), wherein the end portion (51) and the fixing portion (52) are fixedly connected, the second lower connecting portion (4) is provided with a matching groove (41), the inner core (5) is placed in the matching groove (41), the fixing portion (52) and the third connecting portion (53) are fixedly connected, the fixing portion (52) is placed in the matching groove (41), the third connecting portion (53) and the second lower connecting portion (4) are fixedly connected, the third connecting portion (53) and the connecting seat (3) are fixedly connected, and the third connecting portion (53) and the first connecting portion (1) are fixedly connected.

3. The anti-slip zero-degree composite abutment wrench according to claim 2, characterized in that: The end portion (51) is tapered.

4. The anti-slip zero-degree composite abutment wrench according to claim 2, characterized in that: The fixed connection mode of the third connection part (53) is an integrated type or a split type.

5. The anti-slip zero-degree composite abutment wrench according to claim 2, characterized in that: The matching groove (41) is composed of a variety of shapes, and the shapes of the matching groove (41) are distributed along the vertical direction.

6. The anti-slip zero-degree composite abutment wrench according to claim 1, characterized in that: The No. 1 connecting portion (1) is provided with an annular groove (11), the annular ring (2) is placed on the annular groove (11), and the cross section of the No. 1 connecting portion (1) is hexagonal.

7. The anti-slip zero-degree composite abutment wrench according to claim 1, characterized in that: The connecting seat (3) is provided with a plurality of protrusions (31), and the protrusions (31) are distributed in a ring shape along the central axis.

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