CN110652333A

CN110652333A - Improved skull drilling device for neurosurgery

Info

Publication number: CN110652333A
Application number: CN201910990618.XA
Authority: CN
Inventors: 孙虎; 宋薇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-01-07

Abstract

The invention discloses an improved skull drilling device for neurosurgery, which comprises a circular positioning ring and a drill rod, wherein a plurality of drill rod holes are uniformly formed in the circular positioning ring, a plurality of positioning screw rods are also uniformly arranged on the circular positioning ring, a plurality of positioning screw holes are formed in the circular positioning ring, the positioning screw rods are connected with the circular positioning ring through the positioning screw holes, a positioning sheet is further arranged at the end head part, located on the inner side of the circular positioning ring, of each positioning screw rod, a clamping part is arranged at the upper end of the drill rod, a three-stage step is arranged in the clamping part, and a cutting knife is arranged at the lower end. The invention can be fixed on the skull of a patient through the circular positioning ring, accurately positions the skull drilling point and ensures the accuracy of the skull drilling position. The drill rod is fixed on the skull drilling device through the three-stage step of the clamping part, so that the drill rod and the skull drilling device are prevented from sliding, the smooth operation of the skull drilling is ensured, and the adjustment in the operation process is avoided.

Description

Improved skull drilling device for neurosurgery

Technical Field

The invention relates to the technical field of medical appliances, in particular to an improved skull drilling device for neurosurgery.

Background

Neurosurgery is based on surgery as the main treatment means, and a unique neurosurgery research method is applied to research the damage, inflammation, tumor, deformity and certain genetic metabolic disorders or dysfunction diseases of human nervous systems, such as brain, spinal cord and peripheral nervous systems, and related auxiliary mechanisms, such as skull, scalp, cerebral meninges and other structures, such as: the etiology and pathogenesis of epilepsy, Parkinson's disease, neuralgia and other diseases, and explores a high, precise and advanced discipline of new diagnosis, treatment and prevention technology.

However, the existing skull drilling device for neurosurgery has the problems of complex operation, high positioning difficulty, inconvenient fixation, slipping between a drill rod and a clamping and fixing device, insufficient length of the front end part of a drill bit, need of re-fixing the drill bit, pollution to the drill bit, higher labor intensity of medical staff and incapability of achieving the optimal use effect.

Disclosure of Invention

In order to achieve the purpose, the invention adopts the following technical scheme:

the improved skull drilling device for neurosurgery comprises a circular positioning ring and a drill rod, wherein a plurality of drill rod holes used for the drill rod to pass through are uniformly formed in the circular positioning ring, a plurality of positioning screw rods are uniformly arranged on the circular positioning ring, a plurality of positioning screw holes are formed in the circular positioning ring, the positioning screw rods pass through the positioning screw holes and are connected with the circular positioning ring, positioning screw rods are positioned at the end head part of one end of the inner side of the circular positioning ring and are also provided with positioning pieces, the positioning pieces are arc-shaped, the positioning pieces are in threaded connection with the positioning screw rods, a clamping part is arranged at the upper end of the drill rod, the clamping part is provided with a tertiary step, and a cutting knife is arranged at the lower end of the drill rod.

Furthermore, a connecting block is fixed on the outer side of the positioning piece, a connecting hole with internal threads is formed in the connecting block, and the connecting block is connected with the positioning screw rod through the connecting hole.

Further, the number of the positioning screws is three, four or six.

Furthermore, the bottom of the drill rod is provided with an antibacterial cover, and the antibacterial cover is sleeved on the outer side of the drill rod.

Furthermore, one end of the positioning screw rod, which is positioned outside the circular positioning ring, is provided with a screwing handle.

Furthermore, a compression spring is connected between the positioning screw rod and the circular positioning ring.

Furthermore, an elastic limiting washer is arranged below the clamping part on the drill rod, and the diameter of the elastic limiting washer is larger than the outer diameter of the clamping part.

Further, the cross section of the third-stage step is in a regular polygon shape.

Compared with the prior art, the invention has the beneficial effects that:

the improved skull drilling device for neurosurgery can be fixed on the skull of a patient through the circular positioning ring, accurately positions a skull drilling point according to a brain CT picture, is accurate in orientation, is beneficial to determining the skull drilling position, and is simple in structure and convenient to operate. The circular positioning ring can be regulated on the skull of the patient through the positioning screw rod, so that the circular positioning ring and the skull of the patient are fixed to prevent the movement of the circular positioning ring and the skull of the patient, and the accuracy of skull drilling position is ensured. The drill rod is fixed on the skull drilling device through the three-stage step of the clamping part, so that the drill rod and the skull drilling device are prevented from sliding, smooth skull drilling is guaranteed, adjustment in the operation process is avoided, and the treatment of a patient is also guaranteed. Meanwhile, the labor degree of medical staff is reduced, and the best use effect is achieved.

Drawings

FIG. 1 is a schematic structural view of an improved neurosurgical cranium drilling device of the present invention;

FIG. 2 is a schematic view of an improved positioning ring for a cranial drill device for neurosurgery according to the present invention;

FIG. 3 is a schematic structural view of a drill rod of an improved positioning ring of a cranial drill device for neurosurgery according to the present invention;

FIG. 4 is a top view of the drill stem of an improved neurosurgical cranium positioning ring of the present invention;

FIG. 5 is a schematic view of the structure of a positioning screw of the improved positioning ring of the cranial drill device for neurosurgery.

In the figure: 1-circular positioning ring, 2-drill rod hole, 3-positioning screw rod, 4-positioning screw hole, 5-positioning sheet, 6-drill rod, 7-clamping part, 8-elastic limit washer, 9-cutting knife, 10-antibacterial cover, 11-elastic gasket, 12-connecting block, 13-connecting hole, 14-screwing handle and 15-compression spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides an improved skull drilling device that neurosurgery was used, includes circular holding ring 1, and the circular holding ring 1 is last evenly to be equipped with a plurality of drilling rod holes 2 that are used for the drilling rod to pass through, still evenly is equipped with a plurality of positioning screw 3 on the circular holding ring 1, and positioning screw 3's quantity is three, four or six.

Be equipped with a plurality of location screws 4 on the circular holding ring 1, positioning screw 3 is connected with circular holding ring 1 through location screw 4, and positioning screw 3 is located the one end tip portion of circular holding ring 1 inboard and still is equipped with spacer 5, and spacer 5 is the arc, 5 and 3 threaded connection of positioning screw.

The upper end of drilling rod 6 is equipped with clamping part 7, is located the below of clamping part 7 on drilling rod 6 and is equipped with elasticity spacing washer 8, and the diameter of elasticity spacing washer 8 is greater than the external diameter of clamping part 7. The clamping part 7 is provided with three steps, the cross section of each step is in a regular polygon shape, and the lower end of the drill rod 6 is provided with a cutting knife 9. The bottom of the drill rod 6 is provided with an antibacterial cover 10, and the antibacterial cover 10 is sleeved outside the drill rod 6.

The inner side of the positioning plate 5 is provided with an elastic gasket 11. The outer side of the positioning plate 5 is fixed with a connecting block 12, the connecting block 12 is provided with a connecting hole 13 with internal threads, and the connecting block 12 is connected with the positioning screw rod 4 through the connecting hole 13. The end of the positioning screw rod 4 positioned outside the circular positioning ring 1 is provided with a screwing handle 14. A compression spring 15 is also connected between the positioning screw rod 3 and the circular positioning ring 1.

The working principle is as follows:

when the positioning plate is in work, the circular positioning ring 1 is sleeved on the skull of a patient, the position of one drill rod hole 2 is aligned to the position needing drilling, then three or six positioning screws 3 are uniformly arranged in the positioning screw holes 4 on the circular positioning ring 1, and then the positioning screws 3 are screwed by screwing the handles 14 until the inner sides of the positioning plates 4 are attached to the skull. And then the drill rod 6 is arranged in the skull drill, and the drill rod 6 is aligned with the drill rod hole 2 for drilling. And after drilling is finished, screwing the positioning screw rod 3 out of the positioning screw hole 4.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The improved skull drilling device for neurosurgery comprises a circular positioning ring and a drill rod, wherein a plurality of drill rod holes used for the drill rod to pass through are uniformly formed in the circular positioning ring, a plurality of positioning screw rods are uniformly arranged on the circular positioning ring, a plurality of positioning screw holes are formed in the circular positioning ring, the positioning screw rods pass through the positioning screw holes and are connected with the circular positioning ring, positioning screw rods are located at the end head part of the inner side of the circular positioning ring and are also provided with positioning pieces, the positioning pieces are arc-shaped, the positioning pieces are in threaded connection with the positioning screw rods, a clamping part is arranged at the upper end of the drill rod, the clamping part is provided with three steps, and a cutting knife is arranged at the lower end of the drill rod.

2. The improved neurosurgical cranial drilling device of claim 1, wherein the spacer is provided with a resilient pad on the inside.

3. The improved cranial drilling device for neurosurgery according to claim 2, wherein a connecting block is fixed on the outer side of the positioning plate, a connecting hole with internal threads is arranged on the connecting block, and the connecting block is connected with the positioning screw rod through the connecting hole.

4. The improved neurosurgical cranial drilling device of claim 1, wherein the number of positioning screws is three, four or six.

5. The improved neurosurgical cranium drilling device according to claim 1, wherein the bottom of the drill rod is provided with a bacteria-proof cover, and the bacteria-proof cover is sleeved on the outer side of the drill rod.

6. The improved neurosurgical cranial drilling device of claim 1, wherein the end of the positioning screw outside the circular positioning ring is provided with a tightening handle.

7. The improved neurosurgical cranial drilling device of claim 1, wherein a compression spring is further connected between the positioning screw and the circular positioning ring.

8. The improved neurosurgical cranial drilling device of claim 1, wherein an elastic stop washer is positioned on the drill stem below the clamping portion, the elastic stop washer having a diameter greater than the outer diameter of the clamping portion.

9. The improved neurosurgical cranial drilling device of claim 1, wherein the tertiary steps are regular polygons in cross section.