A wrench for a dental implant

Abstract

The utility model discloses a tooth bed implantation body spanner of vertical force can be applied, including casing, rotation subassembly, transmission subassembly and drive assembly, and the casing includes handle, middle seat and drive seat that connect gradually, and rotation subassembly is vertically set up on handle, including rotatable drive shaft, transmission subassembly sets up inside middle seat, is used for converting the vertical rotation of drive shaft motion into horizontal direction's rotation motion, and drive assembly sets up inside drive seat, and drive assembly includes a rotatable connector, and the connector is used for with sleeve detachable connection, and transmission subassembly transmits horizontal direction's rotation motion to drive assembly to drive the connector rotation, and this kind of spanner can convert the vertical direction's rotation operation into the horizontal rotation required by drive implantation body, and it is convenient to operate in the narrow area of oral cavity, and this kind of spanner makes the hand of doctor not to cover the implantation body just above completely to provide better visual field condition for the observation surgical area.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a wrench for dental implants that can apply vertical force. Background Technology

[0002] In dental implant surgery, the implant needs to be precisely screwed into a pre-prepared hole in the patient's jawbone. Traditional implant wrenches usually have a straight bar or ratchet structure, with the force applied parallel to the implant axis. During operation, the dentist needs to place their hand and instruments directly above the implant. However, in some narrow or specially angled oral operating areas, such as the posterior teeth region, cases with greater jawbone depth, or where the patient has limited mouth opening, this parallel force application method can severely obstruct the dentist's vision and limit the range of motion of surgical instruments, leading to inconvenience in operation. In order to obtain a better operating angle, the dentist often needs to adjust the patient's head position or their own operating posture. This not only increases the operation time but may also affect the implant placement accuracy and initial stability due to unclear vision or an unsatisfactory operating angle, and may even lead to complications such as implant deviation, poor placement, or damage to surrounding tissues.

[0003] Although there are some improved wrenches in the existing technology, such as bent wrenches or drive tools with angled heads, they are essentially still transmitting torque through a fixed-angle rod, which fails to fundamentally solve the problem of obstructed vision in the surgical area. In addition, some wrenches use gear transmission to change the direction of force application, but they are complex in structure, large in size, and difficult to use flexibly in the narrow space of the oral cavity. They also have problems such as low transmission efficiency and indirect feel. Utility Model Content

[0004] The purpose of this invention is to provide a wrench for dental implants that can apply force vertically. This wrench can convert the doctor's vertical rotation operation into a horizontal torque output, thereby enabling more convenient and precise implant placement in narrow oral cavity areas, while effectively improving the surgical field of vision and reducing the difficulty of surgical operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wrench for dental implants capable of vertical force application, comprising:

[0006] A housing, comprising a handle, a middle seat, and a drive seat connected in sequence;

[0007] A rotating assembly, vertically mounted on the handle, includes a rotatable drive shaft;

[0008] A transmission assembly, disposed inside the intermediate seat, is used to convert the vertical rotational motion of the drive shaft into horizontal rotational motion;

[0009] A drive assembly, disposed inside the drive base, includes a rotatable connector for detachable connection with a sleeve. The transmission assembly transmits horizontal rotational motion to the drive assembly to drive the connector to rotate.

[0010] Preferably, the rotating assembly includes a knob fixed to the top of the drive shaft, the bottom end of the drive shaft extends into the handle and is rotatably connected to the inner bottom of the handle via a first bearing, and a first gear is fixed on the drive shaft.

[0011] Preferably, the transmission assembly includes a first driven shaft, the two ends of which are rotatably connected to the interior of the intermediate seat via a second bearing. A second gear and a third gear are fixed on the first driven shaft, and the second gear meshes with the first gear via a transmission belt.

[0012] Preferably, the drive assembly further includes a second driven shaft and a fourth gear fixed on the second driven shaft. The top end of the second driven shaft is rotatably connected to the inner top of the drive seat via a third bearing. The bottom end of the second driven shaft extends out of the drive seat and is fixedly connected to the connector. The fourth gear meshes with the third gear of the transmission assembly.

[0013] Preferably, the outer peripheral surface of the knob is provided with a first anti-slip protrusion.

[0014] Preferably, the connector is provided with an elastic locking mechanism.

[0015] Preferably, the elastic locking mechanism is one of a spherical locking pin, a spring plunger, or an elastic buckle.

[0016] Preferably, the outer wall of the handle is provided with a second anti-slip protrusion.

[0017] Preferably, the transmission belt is a toothed belt.

[0018] Preferably, the handle, intermediate seat, and drive seat are made of medical-grade stainless steel or titanium alloy.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This type of wrench can convert vertical rotation into horizontal rotation required to drive the implant, making it easier to operate in narrow oral cavity areas;

[0021] 2. This type of wrench allows the surgeon's hand to avoid completely obscuring the area directly above the implant, thus providing a better field of vision for observing the surgical area;

[0022] 3. The anti-slip design of the handle and knob of this type of wrench enhances grip stability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the external structure of this utility model.

[0025] In the attached diagram, the following are the reference numerals: 1. Handle; 11. Drive shaft; 12. Knob; 13. First gear; 14. First anti-slip protrusion; 15. First bearing; 16. Second anti-slip protrusion; 2. Intermediate seat; 21. First driven shaft; 22. Second gear; 23. Third gear; 24. Drive belt; 25. Second bearing; 3. Drive seat; 31. Second driven shaft; 32. Fourth gear; 33. Third bearing; 4. Connector. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] Example: Please refer to Figures 1-2 This utility model provides a technical solution: a wrench for dental implants that can apply vertical force, including a housing, a rotating component, a transmission component, and a drive component. The housing includes a handle 1, a middle seat 2, and a drive seat 3 connected in sequence. The rotating component is vertically disposed on the handle 1 and includes a rotatable drive shaft 11. The transmission component is disposed inside the middle seat 2 and is used to convert the vertical rotational motion of the drive shaft 11 into a horizontal rotational motion. The drive component is disposed inside the drive seat 3 and includes a rotatable connector 4 for detachable connection with a sleeve. The transmission component transmits the horizontal rotational motion to the drive component to drive the connector 4 to rotate.

[0028] In this embodiment, the rotating assembly includes a knob 12 fixed to the top of the drive shaft 11. The bottom end of the drive shaft 11 extends into the handle 1 and is rotatably connected to the inner bottom of the handle 1 via a first bearing 15. A first gear 13 is fixed on the drive shaft 11. By rotating the knob 12, the drive shaft 11 and the first gear 13 can be driven to rotate vertically.

[0029] In this embodiment, the transmission assembly includes a first driven shaft 21. The two ends of the first driven shaft 21 are rotatably connected to the interior of the intermediate seat 2 through a second bearing 25. A second gear 22 and a third gear 23 are fixed on the first driven shaft 21. The second gear 22 and the first gear 13 are meshed and transmitted through a transmission belt 24.

[0030] In this embodiment, the drive assembly further includes a second driven shaft 31 and a fourth gear 32 fixed on the second driven shaft 31. The top end of the second driven shaft 31 is rotatably connected to the inner top of the drive seat 3 through a third bearing 33. The bottom end of the second driven shaft 31 extends out of the drive seat 3 and is fixedly connected to the connector 4. The fourth gear 32 meshes with the third gear 23 of the transmission assembly.

[0031] In this embodiment, the outer peripheral surface of the knob 12 is provided with a first anti-slip protrusion 14 to increase the friction of the hand during operation.

[0032] In this embodiment, the connector 4 is provided with an elastic locking mechanism for locking the sleeve.

[0033] In this embodiment, the elastic locking mechanism is preferably a spherical locking pin, which is used to quickly engage and lock the corresponding sleeve.

[0034] In this embodiment, the outer wall of the handle 1 is provided with a second anti-slip protrusion 16, which makes it easier for doctors to hold.

[0035] In this embodiment, the transmission belt 24 is a toothed belt. The tooth shape of the toothed belt matches the gear to ensure smooth transmission without slippage. To further ensure transmission reliability, a tensioning wheel can be provided on the inner or outer side of the transmission belt 24, or tension can be achieved by adjusting the center distance of the pulleys.

[0036] In this embodiment, the handle 1, the intermediate seat 2, and the drive seat 3 are preferably made of medical-grade stainless steel to meet the high requirements of surgical instruments for strength, corrosion resistance, and biocompatibility.

[0037] During the surgery, the doctor selects the appropriate sleeve according to the implant model, installs the sleeve on the connector 4, holds the handle 1, and then rotates the knob 12 with the other hand. The vertical rotational force of the knob 12 is transmitted to the first gear 13 through the drive shaft 11. The first gear 13 drives the second gear 22 through the toothed belt 24, causing the first driven shaft 21 to rotate horizontally. The third gear 23, which is fixed on the same first driven shaft 21, rotates accordingly and drives the fourth gear 32, which meshes with it, to rotate. The fourth gear 32 drives the second driven shaft 31 and the connector 4 to rotate, and finally transmits the torque to the sleeve and the implant to complete the implantation operation.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wrench for dental implants capable of applying vertical force, characterized in that, include: The housing includes a handle (1), a middle seat (2), and a drive seat (3) connected in sequence. The rotating assembly is vertically mounted on the handle (1) and includes a rotatable drive shaft (11). A transmission assembly is disposed inside the intermediate seat (2) and is used to convert the vertical rotational motion of the drive shaft (11) into horizontal rotational motion. The drive assembly, located inside the drive base (3), includes a rotatable connector (4) for detachable connection with the sleeve. The transmission assembly transmits horizontal rotational motion to the drive assembly to drive the connector (4) to rotate.

2. The dental implant wrench capable of vertical force application according to claim 1, characterized in that: The rotating assembly includes a knob (12) fixed to the top of the drive shaft (11), the bottom end of the drive shaft (11) extends into the handle (1) and is rotatably connected to the inner bottom of the handle (1) via a first bearing (15), and a first gear (13) is fixed on the drive shaft (11).

3. A wrench for dental implants capable of vertical force application according to claim 2, characterized in that: The transmission assembly includes a first driven shaft (21), the two ends of which are rotatably connected to the interior of the intermediate seat (2) via a second bearing (25). A second gear (22) and a third gear (23) are fixed on the first driven shaft (21), and the second gear (22) meshes with the first gear (13) via a transmission belt (24).

4. A wrench for dental implants capable of vertical force application according to claim 3, characterized in that: The drive assembly also includes a second driven shaft (31) and a fourth gear (32) fixed on the second driven shaft (31). The top end of the second driven shaft (31) is rotatably connected to the inner top of the drive seat (3) through a third bearing (33). The bottom end of the second driven shaft (31) extends out of the drive seat (3) and is fixedly connected to the connector (4). The fourth gear (32) meshes with the third gear (23) of the transmission assembly.

5. A wrench for dental implants capable of vertical force application according to claim 2, characterized in that: The outer peripheral surface of the knob (12) is provided with a first anti-slip protrusion (14).

6. A wrench for dental implants capable of vertical force application according to claim 1, characterized in that: The connector (4) is provided with an elastic locking mechanism.

7. A wrench for dental implants capable of vertical force application according to claim 6, characterized in that: The elastic locking mechanism is one of a spherical locking pin, a spring plunger, or an elastic buckle.

8. A wrench for dental implants capable of vertical force application according to claim 3, characterized in that: The outer wall of the handle (1) is provided with a second anti-slip protrusion (16).

9. A wrench for dental implants capable of vertical force application according to claim 4, characterized in that: The transmission belt (24) is a toothed belt.

10. A wrench for dental implants capable of vertical force application according to claim 1, characterized in that: The handle (1), intermediate seat (2) and drive seat (3) are made of medical grade stainless steel or titanium alloy.

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