CN107981910B

CN107981910B - A skull bone window edge drilling device

Info

Publication number: CN107981910B
Application number: CN201711448797.1A
Authority: CN
Inventors: 左大辉; 蒋太鹏
Original assignee: Shenzhen Second Peoples Hospital
Current assignee: Shenzhen Second Peoples Hospital
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2024-09-13
Anticipated expiration: 2037-12-27
Also published as: CN107981910A

Abstract

The invention discloses a skull bone window edge drilling device, comprising a drill having a drill bit, and also comprising a gripping portion for mounting the drill, wherein the drill bit of the drill extends from one end of the gripping portion, and the other end of the gripping portion is elastically pivotally connected to a positioning member, wherein a pressing portion for positioning the edge of the bone window is provided at the free end of the positioning member, and a gasket is rotatably provided between the positioning member and the gripping portion. The skull bone window edge drilling device of the invention can realize safe and rapid drilling on the skull, thereby buying more treatment time for patients.

Description

Skull bone window edge drilling device

Technical Field

The invention relates to the technical field of neurosurgery medical appliances, in particular to a skull bone window edge drilling device.

Background

In neurosurgical craniotomy, bone window formation is a very important step, followed by suspension of the surrounding dura mater over nearby muscles/fascia/abrasive drilling over the cavity formed at the bone margin, thereby avoiding dura mater dissection to form hematoma and reducing the risk of surgery. However, the muscle/fascia bearing force is poor, and the skull bone flap is restored and fixed when the skull is closed, so that the skull bone flap is easy to tear off to cause suspension failure; the grinding drill is used for punching holes on the bone edges to suspend the dura mater, so that the auxiliary operation is needed by a plurality of people, the time and the labor are wasted, brain tissues are easily damaged, the purchase cost of the grinding drill is relatively high, and the grinding drill is only carried out by a large neurosurgery hospital at home and abroad at present. Therefore, how to conveniently and quickly punch bone edges and simultaneously not damaging brain tissues has long been a technical problem to be solved in clinical neurosurgery.

The existing bone window edge drilling is generally completed by a plurality of people of neurosurgeons, one person uses a grinding drill for drilling holes, one person uses a gasket for preventing brain tissue from being injured by drilling, and one person pushes away surrounding muscle scalp to reduce obstruction, so that the time consumption is long.

In the existing craniotomy, in order to protect brain tissues, a doctor sets a separate skull bone edge drilling fixing protector, for example, a protecting device is disclosed in China patent No. 96206635.4, and the skull edge drilling fixing brain protector. However, although the separately arranged devices can play a role in protection, expensive instruments such as abrasive drills (instruments which are generally only available in larger neurosurgery) and the like are required to be matched for use, and the two-hand operation is required, so that the time is still relatively long.

Therefore, the existing skull bone window edge drilling technology is still to be improved and developed.

Disclosure of Invention

Aiming at the technical problems, the invention provides a skull bone window edge drilling device for drilling a skull more safely and rapidly.

The technical scheme provided by the embodiment of the invention is as follows: the utility model provides a skull bone window edge drilling equipment, including the drilling equipment that has the drill bit, still including installing the portion of gripping of this drilling equipment, the drill bit of this drilling equipment stretches out from portion of gripping one end, should grip the other end elasticity pivot connection setting element, and the free end of this setting element is provided with the portion of supporting that is used for bone window edge to fix a position, rotates between this setting element and the portion of gripping and sets up the gasket.

In order to push away the cortex simultaneously, the holding part is pivoted on one side close to the drill bit and provided with a cortex pushing and blocking part, and the angle of the cortex pushing and blocking part can be adjusted.

Preferably, the drill comprises a power supply, a controller, a power motor and a switch, wherein the power supply is connected with the controller and the power motor, the output of the power motor is connected to the drill bit, the controller is used for controlling the rotation of the drill bit, and the switch is connected with the controller.

Further, the controller is also connected with a rotation speed sensor for measuring the rotation speed of the drill bit.

Further, the controller is also connected with a torque sensor for measuring the rotation torque of the drill bit.

In order to find the drilling position, the holding part is provided with a lighting lamp connected with a controller at a position close to the drill bit.

Preferably, the power supply is a rechargeable battery, and the holding part is provided with an interface for charging the rechargeable battery.

In order to adjust the size of the skull drilling, the drill bit is replaceably mounted on the grip portion by means of a clutch coupling, which is connected to a power motor, which is connected to the power source and to the controller.

The holding part is connected with the positioning piece through a pivot shaft, and a spring for elastically pressing the inner wall of the holding part and the positioning piece is arranged on the pivot shaft.

In another embodiment, the pad includes a connecting piece rotatably mounted on the pivot shaft between the positioning member and the grip portion and a use pad removably connected to the connecting piece and having a cortical pusher portion connected at an end thereof.

The beneficial effects of the embodiment of the invention are as follows: according to the skull bone window edge drilling device, a small-sized drilling device is arranged in a holding part, a doctor can hold the holding part by one hand, and the drilling device is started; meanwhile, in order to ensure that the drill bit pierces brain tissues after drilling, the holding part is elastically and pivotally connected with the positioning piece, the free end of the positioning piece is provided with a pressing part for positioning the edge of the bone window, and the hook-shaped pressing part forms a protection pad on one side of the drill bit where drilling is finished when hooking the edge of the bone window, for example, when the drill bit finishes drilling and stretches out of the edge of the bone window, or bone fragments and the like possibly generated in drilling fall in the bending part of the pressing part, so that the brain tissues are not affected. Therefore, the skull bone window edge drilling device provided by the invention is safer and faster, and more treatment time is striven for patients.

Drawings

FIG. 1 is a schematic perspective view of a skull bone window edge drilling device according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a device for drilling the edge of a skull bone window, provided with an illuminating lamp, according to an embodiment of the invention;

FIG. 3 is a schematic structural view of the use state of the skull bone window edge drilling device according to the embodiment of the invention;

FIG. 4 is a partially enlarged construction view of the use state of the skull bone window edge drilling device according to the embodiment of the invention;

FIG. 5 is an enlarged partial block diagram of another embodiment of the cranial window edge drilling device according to an embodiment of the present invention; and

Fig. 6 is a circuit device diagram of the skull bone window edge drilling apparatus according to the embodiment of the invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. The exemplary embodiments of the present invention and their descriptions herein are for the purpose of explaining the present invention, but are not to be construed as limiting the invention.

In brain tumor surgery, in order to remove malignant tumors in brain tissue, a treatment is performed by windowing, and in order to avoid dural hemorrhage, it is necessary to fix dura mater near a lesion near the bone window. During this procedure, holes are punched in the appropriate direction at the edge of the skull bone window.

The skull bone window edge drilling device is designed for solving the problem of drilling.

Referring to fig. 3, the skull bone window edge drilling device according to the present embodiment can be operated by hand. The skull bone window edge drilling device comprises a drill for realizing skull drilling, a positioning piece 20 for realizing positioning corresponding to a drill bit 41 of the drill, a gasket 30 arranged below the drill bit, wherein the gasket 30 is in an anti-skid pad on the skull 10, and a drill bit 40 is in oblique drilling on the gasket.

Referring to fig. 1 together, the skull bone window edge drilling device of the present embodiment comprises a drill with a drill bit 41, and further comprises a holding part 51 for installing the drill, a positioning member 20 and a spacer 30. The end of the drill bit 41 of this embodiment is provided with drill teeth 42 for faster drilling through the skull 10.

The drill bit 41 of the drill extends from one end of the grip portion 51, and the other end of the grip portion 51 is resiliently pivotally connected to the positioning member 20. The free end of the positioning member 20 is provided with a pressing portion 22 for positioning the bone window edge 12. The spacer 30 is rotatably provided between the positioning member 20 and the grip portion 51.

As shown in fig. 4, in order to enable a doctor to perform perforation with one hand and push away the surgical cortex at the same time, the distal end of the spacer 30 is pivotally provided with a cortex pushing part 56, and the cortex pushing part 56 is pivotally connected to one end of the spacer 30 using the spacer 32 by a pivot shaft. The cortex pushing block part can be sheet-shaped or can be a pushing block strip with a pushing block function, and the embodiment is described by taking the sheet-shaped scalp pushing block part as an example. Preferably, the pivot shaft is a hollow non-closed elastic shaft, and a fixing component is arranged inside the pivot shaft. The fixing assembly includes a fixing knob which is externally protruded to be operated by a doctor, and is screwed to a taper screw, and the diameter of the elastic shaft can be minutely changed by rotating the fixing knob so that the angle of the cortical push stopper 55 can be adjusted.

Fig. 5 shows another embodiment of the cortex pushing block portion, in order to enable a doctor to punch holes with one hand and push away the surgical cortex, the holding portion 51 is pivotally provided with the cortex pushing block portion 55 at a side close to the drill 41, and the cortex pushing block portion 55 is pivotally connected to one end of the holding portion 51 by a pivot shaft. Preferably, the pivot shaft is a hollow non-closed elastic shaft, and a fixing component is arranged inside the pivot shaft. The fixing assembly includes a fixing knob which is externally protruded to be operated by a doctor, and is screwed to a taper screw, and the diameter of the elastic shaft can be minutely changed by rotating the fixing knob so that the angle of the cortical push stopper 55 can be adjusted.

As shown in fig. 1, in order to adjust the size of the skull opening in the present embodiment, the drill 41 is replaceably mounted on the grip portion 51 via the clutch hub 40. The clutch connection 40 is connected to a power motor of the electrical part, which is connected to a power source and a controller.

The grip portion 51 is connected to the positioning member 20 by a pivot shaft. The pivot shaft is provided with a spring for elastically pressing against the inner wall of the grip portion and the positioning member 20. So that in use, the physician grasps the grip 51 in the palm and the fingertips manipulate the positioning member 20 to find and select the perforation location.

The spacer 30 includes a connection piece 31 and a use spacer 32 detachably connected to the connection piece 31, the connection piece 31 being rotatably mounted on a pivot shaft connecting the grip portion 51 and the positioning member 20. And the connecting piece 31 is located between the positioning member 20 and the grip portion 51.

The electrical part design is presented below:

As shown in the circuit diagram of fig. 6, the drill includes a power source 101, a controller 100, a power motor 130, a rotational speed sensor 110, a torque sensor 120, and a switch 52. The power source 101 connects the controller 100 with a power motor 130, and the output of the power motor 130 is connected to the drill bit 41. The controller 100 is used for controlling the rotation of the drill 41, and the switch 52 is connected to the controller 100. When the switch is turned on, the power motor 130 starts to rotate and drives the drill 41 to rotate.

The controller 100 is connected to a rotational speed sensor 110 for measuring the rotational speed of the drill bit. The controller 100 is connected to a torque sensor 120 for measuring the rotational torque of the drill bit.

In another embodiment, to find the drilling position, the grip portion 51 is provided with an illumination lamp 60 connected to the controller 100 at a position close to the drill 41. When the switch is turned on, the power motor 130 starts to rotate and drives the drill 41 to rotate, and the illuminating lamp 60 is also turned on.

The clutch connection 40 is connected to a power motor 130 of the electrical part, which power motor 130 is connected to the power source 101 and the controller 100. So that the controller can regulate the speed of the drill bit according to the feedback information of the rotation speed sensor 110 and the torque sensor 120. For example, when the drill 41 drills through the skull bone 10, the torque sensor 120 will feed back a zero value, and the controller 100 will determine that the skull bone has been drilled through at this time, and will automatically stop cutting off the power connection to the power motor 130.

As shown in fig. 1 to 3, the power source 101 is a rechargeable battery, and the grip portion 51 is provided with an interface 53 for charging the rechargeable battery.

In the skull bone window edge drilling device of the embodiment, a small-sized drill is installed in the holding part, a doctor can hold the holding part 51 by one hand, the drill is started, and when in use, the doctor holds the holding part 51 in the palm of the hand, and the fingertip operates the positioning piece 20 to search and select the drilling position. Meanwhile, in order to ensure that the drill bit pierces brain tissue after drilling, the holding part 51 is elastically and pivotally connected with the positioning member 20, the free end of the positioning member 20 is provided with a pressing part 22 for positioning the edge of the bone window, and the hook-shaped pressing part 22 forms a protection pad on one side of the drill bit where drilling is finished while hooking the edge of the bone window, for example, when the drill bit finishes drilling and extends out of the edge of the bone window, or bone fragments and the like possibly generated in drilling fall in the bending part of the pressing part 22 without affecting brain tissue. Therefore, the skull bone window edge drilling device of the embodiment is safer and faster, and more treatment time is striven for patients.

The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.

Claims

1. The skull bone window edge drilling device comprises a drill with a drill bit, and is characterized by further comprising a holding part for installing the drill, wherein the drill bit of the drill extends out from one end of the holding part, the other end of the holding part is elastically and pivotally connected with a positioning piece, the free end of the positioning piece is provided with a pressing part for positioning the bone window edge, and a gasket is rotationally arranged between the positioning piece and the holding part;

the holding part is pivoted on one side close to the drill bit and is provided with a cortex pushing and blocking part, the cortex pushing and blocking part is pivoted at one end of the holding part through a pivoting shaft, and the pivoting shaft is a hollow non-closed elastic shaft;

The inside of the pivot shaft is provided with a fixing component, the fixing component comprises a conical screw rod and a fixing knob which extends out and is operated by a doctor, the fixing knob is screwed on the conical screw rod, and the angle of the cortex pushing part can be adjusted by slightly changing the diameter of the pivot shaft through rotating the fixing knob;

The drill comprises a power supply, a controller, a power motor and a switch, wherein the power supply is connected with the controller and the power motor, the output of the power motor is connected to the drill bit, the controller is used for controlling the rotation of the drill bit, and the switch is connected with the controller;

the controller is also connected with a rotating speed sensor for measuring the rotating speed of the drill bit;

The controller is also connected with a torque sensor for measuring the rotation torque of the drill bit.

2. The skull bone window edge drilling device of claim 1 wherein the grip is provided with a light connected to the controller at a location proximal to the drill bit.

3. The skull bone window edge drilling device of claim 2 wherein the power source is a rechargeable battery and the grip portion is provided with an interface for charging the rechargeable battery.

4. A skull bone window edge drilling apparatus according to claim 2, wherein the drill bit is interchangeably mounted on the grip by a clutch coupling, the clutch coupling being connected to the power motor.

5. The skull bone window edge drilling device of claim 4, wherein the holding part is connected with the positioning piece through a first pivot shaft, and a spring for elastically pressing the inner wall of the holding part and the positioning piece is arranged on the first pivot shaft.

6. A skull bone window edge drilling apparatus according to claim 5, wherein the spacer comprises a connecting piece and a use spacer removably connected to the connecting piece, the connecting piece being rotatably mounted on the first pivot shaft and located between the positioning member and the grip.