Abrasive drill handle with flushing and suction functions

Abstract

The utility model relates to the technical field of medical instruments, in particular to an abrasive drill handle with flushing and suction functions, which comprises a handle body and an abrasive drill rod rotatably arranged in the handle body, the front end of the abrasive drill rod extends out of the handle body and is provided with an abrasive drill bit, a flushing channel is arranged between the abrasive drill rod and the inner wall of the handle body, and a flushing pipe is arranged on the handle body. The flushing pipe is communicated with the flushing channel, and the handle body is further provided with a liquid drainage piece used for leading out waste liquid. The grinding drill rod rotates to drive the grinding drill bit to rotate, meanwhile, water is guided into the flushing channel through the flushing pipe, the water flow flushes the grinding drill bit, temperature rise generated by grinding is reduced, damage of heat generated by grinding of the grinding drill bit to soft and hard tissue is reduced, and extra medical workers do not need to hold the flushing pipe. And meanwhile, chippings generated by grinding of the abrasive drill bit and waste water generated by flushing are guided out through the liquid drainage piece, the probability that the chippings and the waste water have adverse effects on operation is reduced, and therefore the using convenience of the abrasive drill handle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a grinding drill handle with flushing and suction functions. Background Art

[0002] In orthopedic and minimally invasive spinal surgeries, bone tissue often needs to be ground. Manual operation is difficult to control the grinding force and inconvenient. Therefore, a motor is usually used to drive the tool to grind the bone tissue and remove excess bone. The grinding of bone requires the high-speed rotation of the drill. Given the limited space at the surgical site, the drill bit needs to be installed on a handle. Medical personnel hold the handle and insert the drill bit into the surgical site for grinding.

[0003] In the related art, reference may be made to the Chinese utility model patent with authorization announcement number CN202619772U, which discloses an automatic drainage type drill grinding handle, comprising a handle body and a support tube located at the front end of the handle body. The support tube is located at the front end head thereof and is provided with a drainage hole connected to the inside and outside of the support tube. The high-speed rotating pumping action of the grinding head causes the liquid and impurities entering the handle to accumulate at the inner front part of the front end head. The accumulated liquid and impurities are discharged from the drainage hole under the drive of the centrifugal force generated by the grinding head, thereby reducing the probability of corrosion and damage to the internal parts of the handle.

[0004] The grinding head heats up due to high-speed rotation, which causes burns to the mucosa and damage to the soft and hard tissues at the grinding site. In order to avoid this injury, a flushing pipe is added to the outside of the handle, and the flushing pipe is directed towards the grinding site to cool the grinding site. However, the additional pipe needs to be held by medical staff, and the flushing pipe extending to the grinding site increases the patient's pain, thereby reducing the convenience of using the grinding drill handle. Utility Model Content

[0005] In order to improve the convenience of using a burr handle, the utility model provides a burr handle with flushing and suction.

[0006] The present application provides a grinding drill handle with irrigation and suction, which adopts the following technical solutions:

[0007] A drill grinder handle with flushing and suction comprises a handle body and a drill grinder rod rotatably arranged in the handle body, the front end of the drill grinder rod extending out of the handle body and provided with a drill bit, a flushing channel being provided between the drill grinder rod and the inner wall of the handle body, a flushing pipe being provided on the handle body, the flushing pipe being connected to the flushing channel, and a drainage component for draining waste liquid being further provided on the handle body.

[0008] By adopting the above technical solution, the rotation of the drill rod drives the drill bit to rotate, and at the same time, water is introduced into the flushing channel through the flushing pipe. The water flow flushes the drill bit, reducing the temperature rise caused by grinding and reducing the damage to soft and hard tissues caused by the heat generated by the grinding of the drill bit. There is no need for additional medical staff to hold the flushing pipe. At the same time, the drainage part discharges the debris generated by the grinding of the drill bit and the wastewater generated by flushing, reducing the probability of debris and wastewater adversely affecting the operation, thereby improving the convenience of using the drill handle.

[0009] Optionally, the drainage component is a suction tube, which is provided on the handle body and extends along the length direction of the handle body. The front end of the suction tube extends to the outlet of the flushing channel, and the rear end of the suction tube is provided with a connector for connecting to an external suction component.

[0010] By adopting the above technical solution, water flows through the flushing channel to flush the drill bit, and the wastewater generated by flushing and the debris generated by grinding are discharged through the suction tube under the action of the external suction part, thereby realizing the discharge of wastewater and debris during the grinding operation, thereby improving the convenience of wastewater and debris discharge.

[0011] Optionally, an opening is provided on the side wall of the handle body, and the flushing tube is connected to the flushing channel through the opening.

[0012] By adopting the above technical solution, the flushing tube is connected to the flushing channel through the opening, thereby reducing the probability of the flushing tube extending directly to the grinding site and causing the patient's wound to increase. This not only improves the convenience of operation for medical staff, but also improves the comfort of patients during the grinding operation.

[0013] Optionally, a mounting block is provided on the handle body, and two mounting holes are provided on the mounting block, and the two mounting holes are used for installing a flushing tube and a suction tube respectively.

[0014] By adopting the above technical solution, the flushing tube and the suction tube are respectively installed in the corresponding mounting holes, and the flushing tube and the suction tube are installed through a mounting block, which saves installation space and improves the convenience of installation.

[0015] Optionally, a threaded block is coaxially fixed on the flushing tube and the suction tube, the mounting hole is a threaded hole, and the threaded block is threadedly matched with the corresponding mounting hole.

[0016] By adopting the above technical solution, during installation, the flushing tube and the suction tube are passed through the installation hole, and the threaded block is rotated to cooperate with the thread of the installation hole, thereby improving the convenience of installation.

[0017] Optionally, the connection between the flushing tube and the handle body is sealed by welding.

[0018] By adopting the above technical solution, the flushing pipe is installed in the corresponding mounting hole, the front end of the flushing pipe is connected to the flushing channel through the opening, and the opening is welded to achieve sealing, thereby improving the sealing of the connection between the flushing pipe and the handle body.

[0019] Optionally, the suction tube is fixed to the outer wall of the handle body by welding.

[0020] By adopting the above technical solution, the suction tube is installed in the corresponding mounting hole, and then the suction tube is welded to the outer wall of the handle body to improve the stability of the connection between the suction tube and the handle body. At the same time, the welding and fitting of the suction tube and the outer wall of the handle body improves the convenience of the suction tube in draining wastewater and debris.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The rotation of the drill rod drives the drill bit to rotate, and at the same time, water is introduced into the flushing channel through the flushing pipe. The water flow flushes the drill bit, reducing the temperature rise caused by grinding and reducing the damage to soft and hard tissues caused by the heat generated by the drill bit. No additional medical staff is required to hold the flushing pipe. At the same time, the drainage component drains away the debris generated by the grinding of the drill bit and the wastewater generated by flushing, reducing the probability of debris and wastewater adversely affecting the operation, thereby improving the convenience of using the drill handle.

[0023] 2. Water flows through the flushing channel to flush the drill bit. The waste water generated by flushing and the debris generated by grinding are discharged through the suction tube under the action of the external suction piece, thereby realizing the discharge of waste water and debris during the grinding operation, thereby improving the convenience of waste water and debris discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this application;

[0025] Figure 2 is a partial cross-sectional view of the handle body in this application;

[0026] Figure 3 It is an exploded view of the thread block in this application.

[0027] Figure numerals: 1. handle body; 11. flushing channel; 12. anti-slip sleeve; 13. threaded block; 14. opening; 2. drill rod; 21. drill bit; 3. flushing tube; 31. mounting portion; 32. flushing portion; 4. suction tube; 41. connecting portion; 42. inclined portion; 43. suction portion; 44. connecting head; 5. mounting block; 51. mounting hole. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] The embodiment of the present application discloses a grinding drill handle with irrigation and suction.

[0030] Reference Figure 1 and Figure 2 A drill grinder handle with flushing and suction includes a handle body 1 and a drill grinder rod 2 rotatably arranged in the handle body 1. The diameter of the handle body 1 gradually decreases from the back to the front. The front end of the drill grinder rod 2 extends out of the handle body 1 and is provided with a drill grinder bit 21. A flushing channel 11 is provided between the drill grinder rod 2 and the inner wall of the handle body 1. A flushing pipe 3 is provided on the handle body 1, and the flushing pipe 3 is connected to the flushing channel 11. The handle body 1 is also provided with a drainage component for draining waste liquid.

[0031] Reference Figure 1 and Figure 2 The handle body 1 is connected to a driving member (not shown in the figure) that drives the drill rod 2 to rotate. The driving member can be a motor; the outer surface of the handle body 1 is also provided with an anti-slip sleeve 12.

[0032] Reference Figure 1 The discharge member is a suction tube 4, which is provided on the handle body 1 and extends along the length direction of the handle body 1. The suction tube 4 is hollow.

[0033] Reference Figure 1 and Figure 2 A mounting block 5 is fixed on the outer wall of the handle body 1 , and two mounting holes 51 are provided on the mounting block 5 . Both mounting holes 51 are threaded holes, and the two mounting holes 51 are used to install the flushing tube 3 and the suction tube 4 respectively.

[0034] Reference Figure 2 and Figure 3 The flushing pipe 3 includes a mounting portion 31 and a flushing portion 32 that are integrally arranged together. The extension direction of the mounting portion 31 is consistent with the extension direction of the corresponding mounting hole 51 and the axis coincides with it. A threaded block 13 is coaxially fixed on the mounting portion 31, and the threaded block 13 is threadedly engaged with the corresponding mounting hole 51; the rear end of the mounting portion 31 is connected to the water source. In this embodiment, the rear end of the mounting portion 31 is connected to the water source through a small water pump.

[0035] Reference Figure 2 and Figure 3 The flushing portion 32 is located at the front end of the mounting portion 31 and extends obliquely downward. An opening 14 is provided on the outer wall of the handle body 1. The flushing portion 32 is connected to the flushing channel 11 through the opening 14, and the front end of the flushing portion 32 is flush with the outer surface of the handle body 1. The connection between the flushing portion 32 and the handle body 1 is sealed by welding. In this embodiment, the opening 14 is the welding point.

[0036] Reference Figure 1 、 Figure 2 and Figure 3 The suction tube 4 includes a connecting portion 41, an inclined portion 42 and a suction portion 43 that are integrally arranged together. The extension direction of the connecting portion 41 is consistent with the extension direction of the corresponding mounting hole 51 and the axis coincides with it. A threaded block 13 is coaxially fixed on the connecting portion 41, and the threaded block 13 is threadedly matched with the corresponding mounting hole 51.

[0037] Reference Figure 1 and Figure 3 The inclined portion 42 is located at the front end of the connecting portion 41 and extends obliquely downward. The rear end of the connecting portion 41 is provided with a connecting head 44 for connecting to an external suction piece. In this embodiment, the external suction piece is a suction pump (not shown in the figure), and the connecting head 44 is connected to the suction end of the suction pump.

[0038] Reference Figure 1 and Figure 3 The suction part 43 is located at the front end of the inclined part 42 and extends along the length direction of the handle body 1. The front end of the suction part 43 extends to the outlet of the flushing channel 11. The outer wall surface of the suction part 43 fits the outer surface of the handle body 1, and the suction part 43 is fixed to the outer wall of the handle body 1 by welding.

[0039] Reference Figure 1 、 Figure 2 and Figure 3 During installation, the corresponding threaded block 13 is installed in the mounting hole 51 by rotating the suction tube 4 and the flushing tube 3. After the rotation is completed, the front end of the flushing part 32 is fitted with the opening 14, and the front end of the suction part 43 is flush with the front end of the flushing channel 11. The connection between the flushing part 32 and the handle body 1 is then sealed by welding, and the suction part 43 and the outer surface of the handle body 1 are fixed by welding.

[0040] Reference Figure 1 and Figure 2 During grinding, the drill rod 2 rotates to drive the drill bit 21 to rotate for grinding, and water is introduced into the flushing channel 11 through the flushing pipe 3. The water flow flushes the drill bit 21, reducing the temperature rise caused by grinding, thereby reducing the damage to soft and hard tissues caused by the heat generated by the drill bit 21. At the same time, the external suction part is started, and the waste water generated by flushing and the debris generated by grinding are discharged through the suction tube 4 under the action of suction, thereby realizing the discharge of waste water and debris during the grinding operation, reducing the probability of debris and waste water having an adverse effect on the operation, and no additional medical staff is required to hold the flushing tube 3 and the suction tube 4, thereby improving the convenience of using the drill handle.

[0041] The working principle of the embodiment of this application is as follows:

[0042] During grinding, the drill rod 2 drives the drill bit 21 to rotate for grinding, and water is introduced into the flushing channel 11 through the flushing tube 3. The water flow flushes the drill bit 21, reducing the temperature rise caused by grinding, thereby reducing the damage to soft and hard tissues caused by the heat generated by the drill bit 21. At the same time, the external suction part is started, and the waste water generated by flushing and the debris generated by grinding are discharged through the suction tube 4 under the action of suction, thereby realizing the discharge of waste water and debris during the grinding operation, reducing the probability of debris and wastewater having an adverse effect on the operation, and no additional medical staff is required to hold the flushing tube 3 and the suction tube 4, thereby improving the convenience of using the drill handle.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A grinding drill handle with irrigation and suction, characterized by: The invention comprises a handle body (1) and a drill grinding rod (2) rotatably arranged in the handle body (1); the front end of the drill grinding rod (2) extends out of the handle body (1) and is provided with a drill grinding head (21); a flushing channel (11) is provided between the drill grinding rod (2) and the inner wall of the handle body (1); a flushing pipe (3) is provided on the handle body (1), and the flushing pipe (3) is communicated with the flushing channel (11); and a liquid discharge member for draining waste liquid is also provided on the handle body (1).

2. The burr handle with irrigation and suction according to claim 1, characterized in that: The liquid discharge member is a suction tube (4), which is arranged on the handle body (1) and extends along the length direction of the handle body (1). The front end of the suction tube (4) extends to the outlet of the flushing channel (11), and the rear end of the suction tube (4) is provided with a connector (44) for connecting to an external suction member.

3. The burr handle with irrigation and suction according to claim 2, characterized in that: An opening (14) is provided on the side wall of the handle body (1), and the flushing tube (3) is connected to the flushing channel (11) through the opening (14).

4. The burr handle with irrigation and suction according to claim 3, characterized in that: The handle body (1) is provided with a mounting block (5), and the mounting block (5) is provided with two mounting holes (51). The two mounting holes (51) are respectively used for mounting a flushing tube (3) and a suction tube (4).

5. The burr handle with irrigation and suction according to claim 4, characterized in that: The flushing tube (3) and the suction tube (4) are both coaxially fixed with a threaded block (13); the mounting hole (51) is a threaded hole; the threaded block (13) and the corresponding mounting hole (51) are threadedly matched.

6. The burr handle with irrigation and suction according to claim 5, characterized in that: The connection between the flushing pipe (3) and the handle body (1) is sealed by welding.

7. The burr handle with irrigation and suction according to claim 5, characterized in that: The suction tube (4) is fixed to the outer wall of the handle body (1) by welding.

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