Improved skull drilling device

Abstract

The utility model discloses an improved cranial drilling device, and particularly relates to the field of cranial drilling devices, the improved cranial drilling device comprises an outer shell and a transmission shaft, a manual emergency mechanism for the cranial drilling device is connected in the outer shell, the manual emergency mechanism comprises a grip, one side of the grip is fixedly connected with a rocker and a first rotating shaft, and the rocker is fixedly connected with the transmission shaft. The outer portion of the first rotating shaft is fixedly connected with a large gear, the bottom of the large gear is in meshed connection with a small gear and a second rotating shaft, the other end of the second rotating shaft is fixedly connected with a first bevel gear, and one side of the bottom of the first bevel gear is in meshed connection with a second bevel gear. By rotating the grip, the rocker is driven to rotate, the first rotating shaft and the large gear are driven to rotate, the small gear and the second rotating shaft are driven to rotate, then the first bevel gear is driven to rotate, the first bevel gear drives the second bevel gear and the transmission shaft to rotate, and therefore the drill bit can be driven to continue to rotate manually instead of a motor. The motor is prevented from stopping driving the drill bit to rotate due to insufficient power, so that the operation is smoother.

Description

Technical Field

[0001] The utility model relates to the field of skull drills, and more specifically, to an improved skull drill. Background Art

[0002] A craniotomy drill is a medical device mainly used for neurosurgery and brain disease treatment. The function of the craniotomy drill is to make holes in the skull to facilitate brain stereotaxic positioning and the implantation of injection needles, electrodes, cannulas, microdialysis catheters, etc. It has important applications in the field of neurosurgery.

[0003] After searching, the existing patent (publication number: CN218943432U) discloses an improved skull drill, including a semi-ring bar, an adjustment part is slidably installed on the surface of the semi-ring bar, and a skull drill is installed on the front of the adjustment part, and the skull drill includes a driving motor, the output end of the driving motor is connected to an inner shaft, and the end of the inner shaft passes through the top of the guide frame, the end of the inner shaft is embedded in the drill bit through a polygonal groove, the top of the drill bit passes through the outer side of the bottom end of the guide frame, and the side of the drill bit is inserted with a threaded bolt through a threaded hole, and the end of the threaded bolt abuts against the outer side of the inner shaft, and the left side of the bottom end of the semi-ring bar is connected to a rotating part. The utility model moves the guide block inside the track groove of the semi-ring bar to change the position of the sleeve plate, thereby adjusting the angle of the sleeve plate. At the same time, the semi-ring bar can be rotated at the center point of the rotating shaft to adjust the position of the semi-ring bar. The two can improve the accuracy of adjustment by cooperating with the scale of the semi-ring bar and the dial during adjustment. The inventor found that the prior art has the following problems in the process of realizing the utility model:

[0004] Existing cranial drills are generally equipped with separate power systems, but these power systems are often expensive, which means that grassroots hospitals can only use ordinary electric drills to drive the drill bits. However, ordinary electric drills often have short battery life and long charging times, which makes it difficult to replace the battery in time during the operation, affecting the operation. In addition, there is no corresponding solution to this problem in the above-mentioned patent documents, so a manual emergency mechanism needs to be installed.

[0005] Therefore, an improved skull drill is proposed in view of the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an improved cranial drill to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved cranial drill, comprising an outer shell and a transmission shaft, wherein a manual emergency mechanism for the cranial drill is connected inside the outer shell, wherein the manual emergency mechanism comprises a handle, wherein one side of the handle is fixedly connected to a rocker, and the other end of the rocker is fixedly connected to a rotating shaft 1;

[0008] The outside of the rotating shaft 1 is fixedly connected to a large gear, the bottom of the large gear is meshed with a small gear, the inside of the small gear is fixedly connected to the rotating shaft 2, the other end of the rotating shaft 2 is fixedly connected to the bevel gear 1, one side of the bottom of the bevel gear 1 is meshed with the bevel gear 2, and the bevel gear 2 is fixedly connected to the outside of the transmission shaft.

[0009] Preferably, a motor is fixedly connected to the top of the outer shell, the motor is connected to a four-way chuck 1 via an output shaft, and the inside of the outer shell is connected to a transmission shaft via a bearing.

[0010] Preferably, the bottom of the four-way chuck 1 clamps a transmission shaft, the bottom of the transmission shaft is fixedly connected to the four-way chuck 2, and the bottom of the four-way chuck 2 clamps a drill bit.

[0011] Preferably, a directional slide rod is sleeved on one side of the outer shell, and a clamping ring is fixedly connected to one side of the directional slide rod.

[0012] Preferably, an arc-shaped slot body is snap-connected inside the snap ring, two ends of the arc-shaped slot body are connected to a fixed base via bearings, and a pull rod is sleeved on the top of the fixed base.

[0013] Preferably, the bottom of the pull rod is respectively fixedly connected with a limit ring and a tooth plate, the top of the limit ring is fixedly connected with a spring, and both ends of the arc-shaped slot body are externally fixedly connected with adjusting gears.

[0014] Preferably, the rotating shaft 1 and the rotating shaft 2 are both connected to the inside of the outer shell through bearings, and the rotating shaft 1 and the large gear rotate inside the outer shell through the handle and the rocker.

[0015] Preferably, the pinion gear and the second rotating shaft perform rotational motion inside the outer shell through the large gear, and the second bevel gear performs rotational motion inside the outer shell through the second rotating shaft and the first bevel gear.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, the improved cranial drill is driven by the user to rotate the handle to drive the rocker to rotate, drive the rotating shaft 1 and the large gear to rotate, drive the small gear at the bottom and the rotating shaft 2 to rotate, and then drive the umbrella gear 1 to rotate, and the umbrella gear 1 drives the umbrella gear 2 and the transmission shaft to rotate. In this way, the drill bit can continue to rotate by manual instead of the motor, preventing the motor from stopping driving the drill bit due to power loss and preventing the operation from being interrupted. At the same time, the transmission between multiple groups of gears of different sizes makes the rotation more labor-saving, preventing the doctor's hand shaking due to fatigue from affecting the operation process, and making the operation go more smoothly.

[0018] 2. Compared with the prior art, the improved skull drill clamps and fixes the transmission shaft through the four-way chuck 1, so that the four-way chuck 1 and the transmission shaft can be driven to rotate by a motor in the later stage; the drill bit is clamped and fixed through the four-way chuck 2, so that the drill bit can be driven to rotate by the transmission shaft and the four-way chuck 2 in the later stage; the outer shell and the retaining ring are connected and fixed by a directional slide rod, so that the position of the retaining ring can be adjusted in the later stage, and then the position of the outer shell can be adjusted; the retaining ring is supported and fixed by the arc-shaped slot body and the fixed base, so that the position of the retaining ring can be adjusted in the later stage; the spring and the retaining plate are driven to move up and down by the pull rod and the limit ring, and then engaged and fixed with the adjusting gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the outer shell of the utility model.

[0021] Figure 3 It is a schematic diagram of the internal cross-sectional structure of the fixed base of the utility model.

[0022] Figure 4 It is a schematic diagram of the external structure of the manual emergency mechanism of the utility model.

[0023] Figure 5 It is a side structural diagram of the manual emergency mechanism of the utility model.

[0024] The accompanying drawings are marked as follows: 1. fixed base; 2. pull rod; 3. arc-shaped slot body; 4. snap ring; 5. directional slide rod; 6. outer shell; 7. manual emergency mechanism; 701. handle; 702. rocker; 703. rotating shaft one; 704. large gear; 705. small gear; 706. rotating shaft two; 707. bevel gear one; 708. bevel gear two; 8. motor; 9. four-way chuck one; 10. transmission shaft; 11. four-way chuck two; 12. drill bit; 13. limit ring; 14. spring; 15. tooth plate; 16. adjusting gear. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] As attached Figure 4 and Figure 5 An improved cranial drill shown in the figure comprises an outer shell 6 and a transmission shaft 10, wherein a manual emergency mechanism 7 for the cranial drill is connected inside the outer shell 6, and the manual emergency mechanism 7 comprises a handle 701, a rocker 702 is fixedly connected to one side of the handle 701, and a rotating shaft 703 is fixedly connected to the other end of the rocker 702;

[0028] The outside of rotating shaft 1 703 is fixedly connected with a large gear 704, the bottom of large gear 704 is meshed with a small gear 705, the inside of small gear 705 is fixedly connected with rotating shaft 2 706, the other end of rotating shaft 2 706 is fixedly connected with bevel gear 1 707, one side of the bottom of bevel gear 1 707 is meshed with bevel gear 2 708, bevel gear 2 708 is fixedly connected to the outside of transmission shaft 10, rotating shaft 1 703 and rotating shaft 2 706 are both connected to the inside of outer shell 6 through bearings, rotating shaft 1 703 and large gear 704 rotate inside outer shell 6 through handle 701 and rocker 702, small gear 705 and rotating shaft 2 706 rotate inside outer shell 6 through large gear 704, bevel gear 2 708 rotates inside outer shell 6 through rotating shaft 2 706 and bevel gear 1 707.

[0029] Wherein: the user rotates the handle 701, which drives the rocker 702 to rotate, drives the rotating shaft 1 703 and the large gear 704 to rotate, drives the small gear 705 and the rotating shaft 2 706 at the bottom to rotate, and then drives the bevel gear 1 707 to rotate, and the bevel gear 1 707 drives the bevel gear 2 708 and the transmission shaft 10 to rotate. In this way, the drill bit 12 can continue to rotate by manually replacing the motor 8, preventing the motor 8 from stopping driving the drill bit 12 to rotate due to power loss, preventing the operation from being interrupted, and at the same time, through the transmission between multiple groups of gears of different sizes, the rotation is more labor-saving, preventing the doctor from shaking hands due to fatigue.

[0030] Embodiment 2

[0031] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working method, as described below:

[0032] See also Figure 1-Figure 5 As shown,

[0033] As a preferred embodiment, a motor 8 is fixedly connected to the top of the outer shell 6, the motor 8 is connected to a four-way chuck 9 through an output shaft, and the inside of the outer shell 6 is connected to a transmission shaft 10 through a bearing; further, the transmission shaft 10 is clamped and fixed by the four-way chuck 9, so that the four-way chuck 9 and the transmission shaft 10 can be driven to rotate by the motor 8 at a later time.

[0034] As a preferred embodiment, the four-way chuck 1 9 has a transmission shaft 10 clamped at the bottom, the transmission shaft 10 has a four-way chuck 2 11 fixedly connected at the bottom, and the four-way chuck 2 11 has a drill bit 12 clamped at the bottom; further, the drill bit 12 is clamped and fixed by the four-way chuck 2 11, so that the drill bit 12 can be driven to rotate by the transmission shaft 10 and the four-way chuck 2 11 at a later time.

[0035] As a preferred embodiment, a directional slide rod 5 is sleeved on one side of the outer shell 6, and a clamping ring 4 is fixedly connected to one side of the directional slide rod 5; further, the outer shell 6 and the clamping ring 4 are connected and fixed by the directional slide rod 5, so that the position of the outer shell 6 can be adjusted by adjusting the position of the clamping ring 4 at a later time.

[0036] As a preferred embodiment, the internal part of the snap ring 4 is snap-connected with an arc-shaped slot body 3, both ends of the arc-shaped slot body 3 are connected to a fixed base 1 through bearings, and a pull rod 2 is sleeved on the top of the fixed base 1; further, the snap ring 4 is supported and fixed by the arc-shaped slot body 3 and the fixed base 1, so as to facilitate the position adjustment of the snap ring 4 during later use.

[0037] As a preferred embodiment, the bottom of the pull rod 2 is fixedly connected to a limit ring 13 and a tooth plate 15, the top of the limit ring 13 is fixedly connected to a spring 14, and the two ends of the arc-shaped slot body 3 are externally fixedly connected to an adjusting gear 16; further, the limit ring 13 and the spring 14 are both sleeved inside the fixed base 1, and the top of the spring 14 is fixedly connected to the inside of the fixed base 1, and the spring 14 and the tooth plate 15 are driven up and down by the pull rod 2 and the limit ring 13, and then engaged and fixed with the adjusting gear 16.

[0038] As a preferred embodiment, shaft one 703 and shaft two 706 are connected to the inside of the outer shell 6 through bearings, and shaft one 703 and large gear 704 rotate inside the outer shell 6 through handle 701 and rocker 702; further, shaft one 703 and large gear 704 are driven to rotate inside the outer shell 6 through handle 701 and rocker 702, thereby driving small gear 705 to rotate.

[0039] As a preferred embodiment, the pinion 705 and the rotating shaft 2 706 rotate inside the outer shell 6 through the large gear 704, and the bevel gear 2 708 rotates inside the outer shell 6 through the rotating shaft 2 706 and the bevel gear 1 707; further, the large gear 704 drives the pinion 705 and the rotating shaft 2 706 to rotate inside the outer shell 6, thereby driving the bevel gear 1 707 and the bevel gear 2 708 to rotate, thereby driving the transmission shaft 10 to rotate.

[0040] The working process of the utility model is as follows:

[0041] First, the user installs and stores the improved cranial drill in an indoor environment. When surgery is required on the patient, the user takes out the device and installs and fixes the fixed base 1 on the operating table on both sides of the patient's head. Then, the user pulls up the pull rod 2 to drive the limit ring 13 and the tooth plate 15 to rise, compresses the spring 14, and separates the tooth plate 15 from the adjusting gear 16. The user can then rotate the arc-shaped slot body 3 to a suitable position, release the pull rod 2, and the spring 14 drives the pull rod 2 and the tooth plate 15 to descend, and the adjusting gear 16 and the arc-shaped slot body 3 are engaged and fixed. Then, the user pulls up the snap ring 4, adjusts the outer shell 6 and the directional slide rod 5 to a suitable position and fixes them again. Then, the user lowers the outer shell 6 along the directional slide rod 5. , so that the drill bit 12 at the bottom is aligned with the position where the patient needs to drill, the motor 8 is started, the four-way chuck 1 9 is driven to rotate, the transmission shaft 10 is driven to rotate, the four-way chuck 2 11 and the drill bit 12 are driven to rotate, and the patient's skull is drilled. When the battery power of the device is low, the user releases the four-way chuck 1 9, and then rotates the handle 701, drives the rocker 702 to rotate, drives the rotating shaft 1 703 and the large gear 704 to rotate, drives the small gear 705 and the rotating shaft 2 706 at the bottom to rotate, and then drives the bevel gear 1 707 to rotate, and the bevel gear 1 707 drives the bevel gear 2 708 and the transmission shaft 10 to rotate, which can continue to drive the four-way chuck 2 11 and the drill bit 12 to rotate, so that the operation continues.

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An improved cranial drill, comprising an outer shell (6) and a transmission shaft (10), characterized in that: The outer shell (6) is internally connected to a manual emergency mechanism (7) for a cranial drill, wherein the manual emergency mechanism (7) comprises a handle (701), one side of the handle (701) is fixedly connected to a rocker (702), and the other end of the rocker (702) is fixedly connected to a rotating shaft 1 (703); The outside of the rotating shaft 1 (703) is fixedly connected to a large gear (704), the bottom of the large gear (704) is meshedly connected to a small gear (705), the inside of the small gear (705) is fixedly connected to the rotating shaft 2 (706), the other end of the rotating shaft 2 (706) is fixedly connected to a bevel gear 1 (707), one side of the bottom of the bevel gear 1 (707) is meshedly connected to a bevel gear 2 (708), and the bevel gear 2 (708) is fixedly connected to the outside of the transmission shaft (10).

2. An improved cranial drill according to claim 1, characterized in that: A motor (8) is fixedly connected to the top of the outer shell (6); the motor (8) is connected to a four-way chuck (9) via an output shaft; and a transmission shaft (10) is connected inside the outer shell (6) via a bearing.

3. An improved cranial drill according to claim 2, characterized in that: The bottom of the four-way chuck 1 (9) clamps a transmission shaft (10), the bottom of the transmission shaft (10) is fixedly connected to the four-way chuck 2 (11), and the bottom of the four-way chuck 2 (11) clamps a drill bit (12).

4. An improved cranial drill according to claim 1, characterized in that: A directional slide rod (5) is sleeved on one side of the outer shell (6), and a clamping ring (4) is fixedly connected to one side of the directional slide rod (5).

5. An improved cranial drill according to claim 4, characterized in that: The snap ring (4) is internally engaged with an arc-shaped slot body (3), both ends of the arc-shaped slot body (3) are connected to a fixed base (1) via bearings, and a pull rod (2) is sleeved on the top of the fixed base (1).

6. An improved cranial drill according to claim 5, characterized in that: The bottom of the pull rod (2) is respectively fixedly connected to a limit ring (13) and a latch plate (15), the top of the limit ring (13) is fixedly connected to a spring (14), and both ends of the arc-shaped latching groove body (3) are externally fixedly connected to adjusting gears (16).

7. An improved cranial drill according to claim 1, characterized in that: The rotating shaft 1 (703) and the rotating shaft 2 (706) are both connected to the inside of the outer shell (6) through bearings, and the rotating shaft 1 (703) and the large gear (704) rotate inside the outer shell (6) through the handle (701) and the rocker (702).

8. An improved cranial drill according to claim 1, characterized in that: The small gear (705) and the second rotating shaft (706) perform rotational motion inside the outer shell (6) via the large gear (704), and the second bevel gear (708) performs rotational motion inside the outer shell (6) via the second rotating shaft (706) and the first bevel gear (707).

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