Torque wrench for implant surgery

Abstract

The utility model relates to dental tool field, a kind of torque wrench for implant surgery, including handle, driving device and rotating head, the handle one end is provided with connector, the rotating head is installed in the one end of connector, the driving device is arranged in handle inner wall, the driving device is connected with rotating head, the driving device includes rotating disc, the rotating disc is located in the side wall of handle, the middle part of the rotating disc is clamped with torsion meter, the end of the connecting rod far from rotating disc is inserted into the inner wall of handle, the rotating disc is connected with driving disc by connecting rod, the handle is located in the side of rotating disc and is penetrated and is installed telescopic screw rod.Working, it solves the technical problem that in the adjustment torque operation, doctor often needs to adjust hand posture to complete relevant adjustment action, not only operation is not convenient enough, but also easy to aggravate hand fatigue in long time surgical process.

Description

Technical Field

[0001] This utility model relates to the field of dental tools, specifically to a torque wrench for implant surgery. Background Technology

[0002] In the field of dental implant surgery instruments, torque wrenches are a key tool. During implant placement, doctors use a micro-motor to place the implant in the approximate position, and then use a surgical wrench to precisely adjust the implant within a reasonable torque range to place it in the ideal three-dimensional position. The ease of operation directly affects the efficiency and safety of the surgery.

[0003] The torque wrench used in implant surgery in the current technology often requires doctors to make significant adjustments to their hand positions to complete the relevant adjustment movements, which has many disadvantages: the range of operation is large, sometimes it is obstructed by teeth and lips, it requires two hands to operate, and it is impossible to free up the other hand to perform other actions, such as opening up soft tissue flaps to observe the three-dimensional position of the implant in real time, and it needs to be reversed when changing the orientation, making the operation complicated.

[0004] These drawbacks mean that surgeons need to frequently adjust tools during surgery to meet the diverse surgical requirements. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a torque wrench for implant surgery. This wrench solves the technical problems of large operating range, susceptibility to obstruction by surrounding tissues, the need for two-handed operation, and the inability to freely switch between forward and reverse force. This wrench uses all high-temperature and high-pressure resistant mechanical components; high-temperature and high-pressure sterilization will not damage it, and it can be easily sterilized and reused.

[0006] The purpose of this utility model is achieved through the following method: a torque wrench for implant surgery, comprising a handle, a drive device, and a rotating head. A connector is provided at one end of the handle, and the rotating head is installed at one end of the connector. The drive device is disposed on the inner wall of the handle and connected to the rotating head. The drive device includes a rotating disk located on the side wall of the handle. A torque meter is engaged in the middle of the rotating disk, and a connecting rod is connected to the bottom of the torque meter. The end of the connecting rod away from the rotating disk is inserted into the inner wall of the handle. The rotating disk is connected to a drive disk via the connecting rod. A telescopic screw is installed through the handle on one side of the rotating disk, and the top of the telescopic screw... A torsion disc is provided, and a limit disc is movably mounted on the inner wall of the handle at the other end of the telescopic screw. A support rod is rotatably mounted on the bottom of the inner wall of the handle, and a switching disc is provided on the top of the support rod. A rack is toothed between the drive disc and the switching disc, and the rack is located between the drive disc and the switching disc and meshes with the limit disc. A drive gear is provided on the support rod at the bottom of the switching disc. A drive rod is installed through the handle on one side of the rotating head. A driven gear is provided at the end of the drive rod near the drive gear, and a transmission gear is provided at the other end of the drive rod near the driven gear. The rotating head includes a driven gear, which is located at the bottom of the inner wall of the rotating head. The transmission gear and the driven gear are matched.

[0007] By rotating the rotating disc on the side wall of the handle, the torque meter and connecting rod transmit the rotation to the drive disc. The drive disc drives the switching disc to rotate through the toothed rack, which in turn drives the support rod and the drive gear at the bottom to rotate. The drive gear meshes with the driven gear on the drive rod, causing the drive rod to rotate. In turn, the drive rod's transmission teeth engage with the driven teeth on the inner wall of the rotating head, thus achieving the rotation of the rotating head. At the same time, rotating the torsion disc can adjust the extension and retraction of the telescopic screw, causing the limit disc to move. The limit disc meshes with the rack to limit the position of the rack, thereby adjusting the transmission state of the drive device.

[0008] Furthermore, the bottom of the rotating head includes a mounting head on which a drill bit is mounted.

[0009] The mounting head at the bottom of the rotating head is designed with a specific connection structure that is adapted to the connection part of the drill bit, so as to achieve a stable installation of the drill bit and the mounting head.

[0010] Furthermore, the outer wall of the telescopic screw is engraved with graduations, and the graduations are covered with pigment.

[0011] The telescopic screw is engraved with a certain precision on its outer wall, and the scale lines clearly indicate the telescopic length of the screw. The scale is covered with a high-contrast pigment so that the scale can be clearly observed under different lighting conditions.

[0012] Furthermore, a dustproof sealing ring is fitted on the outer wall of the drive rod, and the dustproof sealing ring is located at the penetration point between the handle and the drive rod.

[0013] The dustproof sealing ring is made of elastic material. Its inner diameter fits tightly with the outer wall of the drive rod, and its outer diameter fits tightly with the inner wall of the drive rod through the handle, forming a sealing barrier to prevent external dust, impurities and other contaminants from entering the handle.

[0014] Furthermore, the limiting plate is provided with anti-detachment plates above and below it, and the opening size of the limiting plate between the anti-detachment plates matches the size of the rack.

[0015] Anti-detachment discs are set on the upper and lower sides of the limiting disc respectively. The size of the opening formed between the limiting disc and the anti-detachment disc matches the width, thickness and other dimensions of the rack, so that the rack can move smoothly in the opening and will not disengage from the mesh of the limiting disc.

[0016] Furthermore, the torque meter has a dial on top and a clamp on the bottom, and the torque meter is fixed to the connecting rod via the clamp.

[0017] The connecting rod is installed and connected to the torque meter. When the rotating disk is rotated, the torque meter drives the drive disk to rotate through the connecting rod. The torque meter detects the magnitude of the torque transmitted between the two and transmits it to the dial to display the corresponding torque value.

[0018] The beneficial effects of this invention are as follows: This torque wrench for implant surgery forms a toothed engagement with the drive disc, switching disc, and rack. The rotating disc on the side wall of the handle allows the surgeon to directly adjust the speed while holding the handle and achieve forward and reverse rotation without significantly adjusting hand posture, reducing obstruction from teeth and lips. It also enables single-handed operation, freeing up the other hand for other operations, improving ease of operation and helping to reduce hand fatigue caused by prolonged surgery. The telescopic screw, in conjunction with the torsion disc, can drive the movement of the limiting disc. The meshing design between the limiting disc and the rack allows for control of the rack's movement range by adjusting the position of the limiting disc. Torque data can be monitored in real time using a torque meter, thereby adjusting the torque output to adapt to the torque requirements of different implant sizes and different surgical sites, enhancing the wrench's applicability and meeting diverse surgical procedures without frequent tool changes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0022] In the diagram: 100, handle; 101, connector; 200, drive unit; 201, rotating disk; 202, connecting rod; 203, drive disk; 204, rack; 205, limit disk; 206, torsion disk; 207, telescopic screw; 208, switching disk; 209, drive gear; 210, support rod; 211, drive rod; 212, driven gear; 213, transmission gear; 214, dustproof sealing ring; 300, rotating head; 301, mounting head; 302, drill bit; 303, driven gear; 400, torque meter; 401, dial; 402, chuck. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] In this embodiment, refer to Figure 1 - Figure 3 The present invention relates to a torque wrench for implant surgery, comprising a handle 100, a drive device 200, and a rotating head 300. A connector 101 is provided at one end of the handle 100, and the rotating head 300 is mounted at one end of the connector 101. The drive device 200 is disposed on the inner wall of the handle 100 and connected to the rotating head 300. The drive device 200 includes a rotating disk 201 located on the side wall of the handle 100. A torque meter 400 is engaged in the middle of the rotating disk 201, and a connecting rod 202 is connected to the bottom of the torque meter 400. The end of the connecting rod 202 away from the rotating disk 201 is inserted into the inner wall of the handle 100. The rotating disk 201 is connected to a drive disk 203 via the connecting rod 202. A telescopic screw 207 is installed through the handle 100 on one side of the rotating disk 201, and a torsion plate 206 is provided at the top of the telescopic screw 207. The other end of the telescopic screw 207 is movably provided with a limiting plate 205 on the inner wall of the handle 100. A support rod 210 is rotatably installed at the bottom of the inner wall of the handle 100. A switching plate 208 is provided at the top of the support rod 210. A rack 204 is meshed between the drive plate 203 and the switching plate 208. The rack 204 is located between the drive plate 203 and the switching plate 208 and meshes with the limiting plate 205. A drive gear 210 is provided at the bottom of the switching plate 208 on the support rod 210. A drive rod 211 is installed through the handle 100 on one side of the rotating head 300. A driven gear 212 is provided at one end of the drive rod 211 near the drive gear 210. A transmission gear 213 is provided at the other end of the drive rod 211 near the driven gear 212. The rotating head 300 includes a driven gear 303, which is located at the bottom of the inner wall of the rotating head 300. The transmission gear 213 and the driven gear 303 are matched.

[0025] By rotating the rotating disk 201 on the side wall of the handle 100, the rotation is transmitted to the drive disk 203 via the connecting rod 202. The drive disk 203 drives the switching disk 208 to rotate via the toothed rack 204. The switching disk 208 drives the support rod 210 and the drive gear 210 at the bottom to rotate, reversing the rotating disk 201 to obtain a reverse driving force. The drive gear 210 meshes with the driven gear 212 on the drive rod 211, causing the drive rod 211 to rotate. Then, the transmission teeth 213 on the drive rod 211 cooperate with the driven teeth 303 on the inner wall of the rotating head 300 to realize the rotation of the rotating head 300. At the same time, rotating the torsion disk 206 can adjust the extension and retraction of the telescopic screw 207, driving the limit disk 205 to move. The limit disk 205 meshes with the rack 204 to limit the position of the rack 204, thereby adjusting the transmission state of the drive device 200.

[0026] The combined transmission method of gear and rack 204 provides high transmission efficiency and stable transmission ratio, ensuring the precision of the rotating head 300 and meeting the strict torque control requirements of implant surgery. The limit plate 205 allows for flexible adjustment of the transmission state, facilitating the switching of different operating modes according to actual needs during surgery and improving operational flexibility. All components are integrated inside the handle 100, resulting in a compact structure that is easy for doctors to hold and operate, reducing the operational burden during surgery.

[0027] The bottom of the rotating head 300 includes a mounting head 301, on which a drill bit 302 is mounted.

[0028] The detachable connection design between the mounting head 301 and the drill bit 302 facilitates the replacement of different models and functions of the drill bit 302 according to different implant surgery needs, thereby improving the versatility of the torque wrench.

[0029] The telescopic screw 207 has graduations engraved on its outer wall, and the graduations are covered with pigment.

[0030] The telescopic screw 207 is engraved with a certain precision on its outer wall, and the scale lines clearly indicate the telescopic length of the screw 207. The scale is covered with a high-contrast pigment so that the scale can be clearly observed under different lighting conditions.

[0031] The scale setting allows operators to intuitively understand the extension and retraction position of the telescopic screw 207, thereby accurately judging the degree of limitation of the limit plate 205 on the rack 204, realizing precise adjustment of the transmission state of the drive device 200, and improving the accuracy and reliability of operation.

[0032] The outer wall of the drive rod 211 is fitted with a dustproof sealing ring 214, which is located at the point where the handle 100 passes through the drive rod 211.

[0033] The dustproof sealing ring 214 is made of elastic material. Its inner diameter fits tightly with the outer wall of the drive rod 211, and its outer diameter fits tightly with the inner wall of the drive rod 211 through the handle 100, forming a sealing barrier to prevent external dust, impurities and other contaminants from entering the handle 100.

[0034] It effectively prevents impurities such as dust, blood, and bodily fluids generated during surgery from entering the drive device 200 inside the handle 100, avoiding wear or corrosion of transmission components such as gears and racks 204 caused by impurities, and extending the service life of the torque wrench; at the same time, it keeps the inside of the handle 100 clean, reduces maintenance costs, and ensures long-term stable operation of the drive device 200.

[0035] The limit plate 205 is provided with anti-detachment plates above and below it. The opening size of the limit plate 205 between the anti-detachment plates 205 matches the size of the rack 204.

[0036] Anti-disengagement discs are provided on the upper and lower sides of the limiting disc 205, so that the rack 204 can move smoothly in the opening and will not disengage from the mesh of the limiting disc 205.

[0037] A torque sensor 400 is provided at the connection between the connecting rod 202 and the drive disk 203. A pointer electrically connected to the torque sensor 400 is provided on the surface of the rotating disk 201. A torque scale is provided on the upper surface of the rotating disk 201.

[0038] The torque meter 400 has a dial 401 on its top and a clamp 402 on its bottom. The torque meter 400 is fixed to the connecting rod 202 via the clamp 402.

[0039] The connecting rod 202 is installed and connected to the torque meter 400. When the rotating disk 201 is rotated, the torque meter 400 drives the drive disk 203 to rotate through the connecting rod 202. The torque meter 400 detects the magnitude of the torque transmitted between the two and transmits it to the dial 401 to display the corresponding torque value.

[0040] The working process of a torque wrench for implant surgery in this embodiment is as follows: Rotating the rotating disk 201 on the side wall of the handle 100 transmits power to the drive disk 203 via the connecting rod 202. The drive disk 203, through the toothed rack 204, drives the switching disk 208 to rotate. The switching disk 208 then drives the support rod 210 and the drive gear 210 at the bottom to rotate. The drive gear 210 meshes with the driven gear 212 on the drive rod 211, causing the drive rod 211 to rotate. The transmission gear 213 at its end then engages with the driven gear 303 on the inner wall of the rotating head 300, driving the rotating head 300 and the drill bit 302 at the mounting head 301 to rotate, completing the surgical operation. When adjusting the transmission state, rotating the torsion disk 206 controls the extension and retraction of the telescopic screw 207, causing the limiting disk 205 to move. The limiting disk 205 meshes with the rack 204 to limit the rack 204. Position; The telescopic screw 207 has colored scales on its outer wall for easy and intuitive judgment of the adjustment degree, and the anti-disengagement discs above and below the limit disc 205 can prevent the rack 204 from disengaging. When the rotating disc 201 is rotated, the torque meter 400 drives the drive disc 203 to rotate through the connecting rod 202. The torque meter 400 detects the magnitude of the torque transmitted between the two and transmits it to the dial 401 to display the corresponding torque value.

[0041] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A torque wrench for implant surgery, comprising a handle (100), a drive device (200), and a rotating head (300), wherein a connector (101) is provided at one end of the handle (100), the rotating head (300) is mounted at one end of the connector (101), the drive device (200) is disposed on the inner wall of the handle (100), and the drive device (200) is connected to the rotating head (300), characterized in that: The driving device (200) includes a rotating disk (201), which is located on the side wall of the handle (100). A torque meter (400) is snapped into the middle of the rotating disk (201). A connecting rod (202) is connected to the bottom of the torque meter (400). One end of the connecting rod (202) away from the rotating disk (201) is inserted into the inner wall of the handle (100). The rotating disk (201) is connected to a driving disk (203) through the connecting rod (202). A telescopic screw (207) is installed through one side of the handle (100) on the rotating disk (201). A torsion plate (206) is provided at the top of the telescopic screw (207). A limit plate (205) is movably provided at the other end of the telescopic screw (207) on the inner wall of the handle (100). A support rod (210) is rotatably installed at the bottom of the inner wall of the handle (100). 0) A switching disk (208) is provided at the top. The drive disk (203) and the switching disk (208) are connected by a rack (204). The rack (204) is located between the drive disk (203) and the switching disk (208) and meshes with the limiting disk (205). The support rod (210) is located at the bottom of the switching disk (208) and a drive gear (209) is provided. The handle (100) is located on one side of the rotating head (300) and a drive rod (211) is installed through it. The drive rod (211) is located at one end near the drive gear (209) and a driven gear (212) is provided. The drive rod (211) is located at the other end of the driven gear (212) and a transmission gear (213) is provided. The rotating head (300) includes a driven gear (303). The driven gear (303) is located at the bottom of the inner wall of the rotating head (300). The transmission gear (213) and the driven gear (303) are matched.

2. The torque wrench for implant surgery according to claim 1, characterized in that: The bottom of the rotating head (300) includes a mounting head (301), on which a drill bit (302) is mounted.

3. The torque wrench for implant surgery according to claim 1, characterized in that: The outer wall of the telescopic screw (207) is engraved with graduations, which are covered with pigment.

4. The torque wrench for implant surgery according to claim 1, characterized in that: The outer wall of the drive rod (211) is fitted with a dustproof sealing ring (214), which is located at the penetration point between the handle (100) and the drive rod (211).

5. The torque wrench for implant surgery according to claim 4, characterized in that: The limiting plate (205) is provided with anti-detachment plates on the upper and lower sides, and the opening size of the limiting plate (205) between the anti-detachment plates matches the size of the rack (204).

6. The torque wrench for implant surgery according to claim 1, characterized in that: The torque meter (400) has a dial (401) on its top and a clamp (402) on its bottom. The torque meter (400) is fixed to the connecting rod (202) via the clamp (402).

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