CN201356602Y

CN201356602Y - Safe drill for skull operations

Info

Publication number: CN201356602Y
Application number: CNU2009200232520U
Authority: CN
Inventors: 李伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-11
Filing date: 2009-03-11
Publication date: 2009-12-09
Anticipated expiration: 2019-03-11

Abstract

The utility model provides a safe drill for skull operations, which adopts a structure that two telescopic rods are arranged on the two sides of a positioning ring symmetrically with respect to the center thereof; the upper ends of the telescopic rods are fixed on a fixed round plate; a circular ring is fixed at the middle part of the fixed round plate; a screw thread connecting rod is in threaded connection with the interior of the circular ring; and a rotary handle and a drill bit are respectively arranged at the upper end and the lower end of the screw thread connecting rod. The safe drill for skull operations can effectively adjust the drilling depth of the drill bit inside a skull, so that damages to brain tissues can be avoided, the occurrence of medical accidents can be prevented, and the utility model has the advantages of simple structure, convenient use, small volume and the like. Therefore, the safe drill for skull operations has a good use value.

Description

Safe skull operation bores

1, technical field

This utility model relates to a kind of technical field of medical instruments, and specifically a kind of safe skull operation bores.

2, background technology

Usually need bore the cranium operation for the sufferer that gives treatment to a patient in the operation of neurosurgery, and the skull operation brill is the instrument that the doctor often selects for use, but skull operation of the prior art is drilled in the deficiency that exists in the use: the one, and surgical drill bit location can occur when holing on skull or direction is selected inaccurate situation, also be inconvenient to see even the existing device that uses of deviation occurs, be unfavorable for very much doctor's operation technique; The 2nd, the degree of depth of boring can't be grasped, and device can't be regulated, and the situation of drill bit injured brain tissue takes place easily; The 3rd, skull operation bores complex structure, and volume is bigger, is inconvenient to use.

3, summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of convenient adjusting is provided, and safe skull operation easy to use bores.

The technical solution of the utility model realizes in the following manner, its structure is made of fixed disc, annulus, threaded rod, rotary handle, expansion link, drill bit and locating ring, locating ring is fixed with two expansion links by symmetric both sides, the center of circle, the upper end of expansion link is fixed on the fixed disc, the middle part of fixed disc is fixed with annulus, annulus inside is by the threaded rod that has been threaded, and the upper and lower end of threaded rod is fixed with rotary handle and drill bit respectively.

Above-mentioned expansion link is provided with tightening knob, and the bottom is provided with scale value.

Above-mentioned annulus inside is provided with female thread, and the screw thread on female thread and the threaded rod matches.

During use, at first regulating tightening knob makes expansion link be elongated to suitable length, then with the corresponding position of the lower end aligned of drill bit, again locating ring is put on the skull and gets final product, drive the drill bit rotation by rotating rotary handle at last, rotating process can find in time whether the position of drill bit and setting deviation occurs, and rotary handle can't rotate immediately behind the saturating skull of bit drills.

The utility model has the advantages that:

(1), the locating ring of this surgical drill lower end can be stuck on the skull effectively, play to prevent that bit location or direction from deviation occurring and influence the purpose of operation technique.

(2), can configure the degree of depth that drill bit enters skull in advance by the length of regulating expansion link, effectively avoid the situation of drill bit injured brain tissue to occur.

(3), this device have simple in structure, easy to use, advantage such as volume is little.

4, description of drawings

Fig. 1 is the structural representation that safe skull operation bores;

Labelling in the accompanying drawing is represented respectively; 1, fixed disc; 2, annulus; 3, threaded rod; 4, rotary handle; 5, expansion link; 6, tightening knob; 7, drill bit; 8, locating ring.

5, the specific embodiment

Below in conjunction with accompanying drawing safe skull operation of the present utility model is bored the following detailed description of do.

As shown in Figure 1, safe skull operation of the present utility model bores its structure and is made of fixed disc 1, annulus 2, threaded rod 3, rotary handle 4, expansion link 5, drill bit 7 and locating ring 8, locating ring 8 is fixed with two expansion links 5 by symmetric both sides, the center of circle, the upper end of expansion link 5 is fixed on the fixed disc 1, the middle part of fixed disc 1 is fixed with annulus 2, annulus 2 inside are by the threaded rod 3 that has been threaded, and the upper and lower end of threaded rod 3 is fixed with rotary handle 4 and drill bit 7 respectively.

Expansion link 5 is provided with tightening knob 6, and the bottom is provided with scale value, and by the length that configures, the situation that can avoid drill bit 7 injured brain tissues occurring occurs.

Annulus 2 inside are provided with female thread, and the screw thread on female thread and the threaded rod 3 matches.

It is very simple and convenient that safe skull operation of the present utility model bores its processing and fabricating, can process shown in the accompanying drawing to specifications.

Except that the described technical characterictic of description, be the known technology of those skilled in the art.

Claims

1, safe skull operation bores, it is characterized in that constituting by fixed disc, annulus, threaded rod, rotary handle, expansion link, drill bit and locating ring, locating ring is fixed with two expansion links by symmetric both sides, the center of circle, the upper end of expansion link is fixed on the fixed disc, the middle part of fixed disc is fixed with annulus, annulus inside is by the threaded rod that has been threaded, and the upper and lower end of threaded rod is fixed with rotary handle and drill bit respectively.

2, safe skull operation according to claim 1 bores, and it is characterized in that expansion link is provided with tightening knob, and the bottom is provided with scale value.

3, safe skull operation according to claim 1 bores, and it is characterized in that annulus inside is provided with female thread, and the screw thread on female thread and the threaded rod matches.