CN2803280Y

CN2803280Y - Electric puncture drill

Info

Publication number: CN2803280Y
Application number: CN 200520025987
Authority: CN
Inventors: 王首翱
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-23
Filing date: 2005-05-23
Publication date: 2006-08-09
Anticipated expiration: 2015-05-23

Abstract

The utility model relates to an electric puncture drill. The back end of a sleeve barrel is provided with a fast joint for insertion and arrangement of an output shaft of a hand-held electric drill, wherein a pushing shaft supported by a spring is arranged in the sleeve barrel; the front end of the pushing shaft is fixed with a main drill bit which is sheathed with a front sleeve barrel and an auxiliary drill bit fixed on the front sleeve barrel; the back end of the front sleeve barrel is provided with an inner end edge supporting on the end face of the main drill bit; the end face of the main drill bit is symmetrically provided with claws; each claw is correspondingly engaged with the inner end edge of the front sleeve barrel and a groove at the front end of the sleeve barrel. A rotary saw of the electric drill transmits to the sleeve barrel through the fast joint. The main drill bit rotates when the main drill bit contacts a skull, and the main drill bit and the auxiliary drill bit simultaneously stop rotating because of losing power when the main drill bit penetrates the skull. The hand-held electric drill is labor saving in operation because of replacing manual operation. Because both the main drill bit and the auxiliary drill bit simultaneously stop rotating when the main drill bit punctures the skull, the potential risk of puncturing meninges is thoroughly avoided and the safety of skull puncturing and boring is ensured. The utility model has the advantages of reasonable structure, labor saving in operation and use safety.

Description

Electronic puncture is bored

Technical field

This utility model belongs to brain surgical drainage micro power apparatus, particularly relates to a kind of electronic puncture and bores.

Background technology

Puncture in the known technology is bored and is manual operating theater instruments, and its structure is made up of long handle three edged needle and the horizontal handle of three edged needle pommel, the limiting plate that the three edged needle needle body is provided with is fastening by screw, can regulate paracentesis depth.The skeleton thickness setting limiting plate height and position according to the skull different parts is bored in described manual puncture, prevents that drill bit from stabbing meninges.

Above-mentioned manual puncture is bored and is had following 2 obvious defectives, i.e. the possibility of meninges is stabbed in operation effort and existence.Especially there is individual variation in patient's skull skeleton thickness, causes the limiting plate height and position to be set and owes accurately to cause the consequence of stabbing meninges also to be difficult to avoid.

Summary of the invention

This utility model is to bore the operation effort and exist and stab the possible technical problem of meninges in order to solve above-mentioned known manual puncture, proposes a kind of rapid operation, electronic puncture safe in utilization is bored.

This utility model is taked following technical scheme for the technical problem that solves the existence of above-mentioned known manual puncture brill: sleeve rear end is provided with the ready-packaged joint of plug-in mounting hand held electric drill output shaft, be provided with in the sleeve axially-movable, by spring-supported impeller-hub, the impeller-hub front end is fixed with main drill bit, main drill sleeve is equipped with front sleeve and is fixed in the secondary drill bit of front sleeve, the rear end of front sleeve is provided with the edge, the inner that is supported in main bit face, main bit face is symmetrical arranged dog, the corresponding joint of groove of inner edge of each dog and front sleeve and barrel forward end.

This utility model can also be taked following technical measures:

Described main drill bit its rear end is the swivel nut that is provided with female thread, and this swivel nut is connected with the double-screw bolt of impeller-hub.

Described impeller-hub is the shoulder axle with forward and backward shoulder, and shoulder is inner along engaging with barrel forward end when spring discharges thereafter, and preceding shoulder engages with the positioning table of main drill bit swivel nut setting.

Described spring one end is supported in the spring base that sleeve is provided with, and the other end is supported in the distribution that is horizontally-arranged in the impeller-hub rear end face recess.

Described its cutting edge of secondary drill bit is positioned at the rear portion of main drill bit cutting edge.

The beneficial effects of the utility model and advantage are: the commentaries on classics saw of hand held electric drill is transmitted in sleeve by ready-packaged joint, makes the spring compressed energy-storage that is supported in impeller-hub when main drill bit contacts skull, and makes main drill bit dog engage and rotate with the groove of barrel forward end.Simultaneously, the groove by dog and the inner edge of front sleeve rotates secondary drill bit synchronously.When main drill bit pierces through skull and the moment spring that loses resistance discharges at once, meanwhile, promote to make the groove of its dog and barrel forward end to break away from by impeller-hub, then lead.As seen, this utility model replaces manual operation by hand held electric drill and laborsaving, and major and minor drill bit stopped operating simultaneously and thoroughly avoided stabbing the potential danger of meninges when main drill bit pierced through skull, had guaranteed the safety of skull puncture boring.The utlity model has rational in infrastructure, rapid operation, outstanding advantage safe in utilization.

Description of drawings

Accompanying drawing 1 this utility model structural profile sketch map.

Number in the figure: 1 electric drill output shaft, 2 ready-packaged joints, 3 sleeves, 4 spring bases, 5 springs, 6 promote 7 impeller-hubs, 8 dogs, 9 main drill bits, 10 front sleeves, 11 secondary drill bits.

The specific embodiment

Further specify this utility model below in conjunction with accompanying drawing.

Embodiment as shown in the figure, sleeve 3 rear ends are provided with the ready-packaged joint 2 of plug-in mounting hand held electric drill output shaft 1, and this ready-packaged joint is same as prior art.Be provided with in the sleeve 3 axially-movable, by the impeller-hub 7 that spring 5 supports, an end of spring 5 is supported in the spring base 4 that sleeve 3 is provided with, the other end is supported in the distribution 6 that is horizontally-arranged in the impeller-hub 7 rear end face recesses.Impeller-hub 7 front ends are fixed with main drill bit 9, and the rear end of main drill bit is the swivel nut that is provided with female thread, and this swivel nut is connected with the double-screw bolt of impeller-hub 7.

Front sleeve 10 is set in main drill bit 9, and its rear end is provided with the edge, the inner that is supported in main drill bit 9 end faces, and front end is fixed with the hollow secondary drill bit 11 that is set in main drill bit 9, and the cutting edge of secondary drill bit 11 is positioned at the rear portion of main drill bit 9 cutting edges.Main bit face is symmetrical arranged three dogs 8, the corresponding joint of groove of each dog and front sleeve 10 inner edges and sleeve 3 front ends.The impeller-hub 7 of present embodiment is the shoulder axle with forward and backward shoulder, and shoulder is inner along engaging with sleeve 3 front ends when spring 5 discharges thereafter, and preceding shoulder engages with the positioning table of main drill bit 9 swivel nut settings.

Claims

1, electronic puncture is bored, formed by drill bit, it is characterized in that: sleeve rear end is provided with the ready-packaged joint of plug-in mounting hand held electric drill output shaft, be provided with in the sleeve axially-movable, by spring-supported impeller-hub, the impeller-hub front end is fixed with main drill bit, and main drill sleeve is equipped with front sleeve and is fixed in the secondary drill bit of front sleeve, and the rear end of front sleeve is provided with the edge, the inner that is supported in main bit face, main bit face is symmetrical arranged dog, the corresponding joint of groove of inner edge of each dog and front sleeve and barrel forward end.

2, electronic puncture according to claim 1 is bored, and it is characterized in that: described main drill bit its rear end is the swivel nut that is provided with female thread, and this swivel nut is connected with the double-screw bolt of impeller-hub.

3, electronic puncture according to claim 1 is bored, it is characterized in that: described impeller-hub is the shoulder axle with forward and backward shoulder, thereafter shoulder is inner along engaging with barrel forward end when spring discharges, and preceding shoulder engages with the positioning table of main drill bit swivel nut setting.

4, electronic puncture according to claim 1 is bored, and it is characterized in that: described spring one end is supported in the spring base that sleeve is provided with, and the other end is supported in the distribution that is horizontally-arranged in the impeller-hub rear end face recess.

5, electronic puncture according to claim 1 is bored, and it is characterized in that: described its cutting edge of secondary drill bit is positioned at the rear portion of main drill bit cutting edge.