CN2832063Y

CN2832063Y - Practical adjustable cannula type cranial prick

Info

Publication number: CN2832063Y
Application number: CN 200520071465
Authority: CN
Inventors: 韩勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-10
Filing date: 2005-05-10
Publication date: 2006-11-01
Anticipated expiration: 2015-05-10

Abstract

The utility model relates to a practical and adjustable cannula type cranial prick, which is a medical therapeutic tool for boring on skulls of nerve internal medicine and surgery. The utility model is formed by the way that an inner core of the cranial prick is fixed after putting in a cranial prick cannula, and then is connected with tripod nuts through external threads of the cannula, and is characterized in that the inner core of the cranial prick and the cranial prick cannula are in T types; the cannula is provided with fixing screws for the inner core of the cranial prick; the fixing screws and a groove of the inner core of the cranial prick are butted to cause the inner core of the cranial prick to be fixed on the cranial prick cannula, and the length of the inner core extending out of the cannula can be adjusted; the tip of the cannula is provided with jagged edges; after the external threads of the cannula are butted with the tripod nuts, tripod support feet and cross anti-slide grains of the support feet are used to play the role of fixing the cranial prick at the time of boring. The utility model has the advantages of convenient fixation at the time of boring, labor saving of boring, timely stop after penetration, simple tube arrangement, and not easy position change of a drainage tube after tube arrangement, and can be used for boring on skulls of clinical nerve internal medicine and surgery, and can also be used for implementing the operation of the cleaning, the drainage, etc. of ventricular puncture and intracranial hematoma.

Description

Practical adjustable bushing type cranium awl

Affiliated technical field

This utility model relates to the therapeutic device of the inside and outside section of a kind of medical nerve sphenotresia.

Background technology

Using the skull brad awl hole to treat operation to the patient of some cranium cerebral lesion is one of the inside and outside section of present clinical nerve emergency treatment means commonly used, being used for sphenotresia now, to carry out the cranium wimble structure of operation such as ventricles of the brain built-in pipe and hematoma suction simple, it is a common pyramidal structure, hold handle by the operation doctor and firmly bore skull, extract the cranium awl then, insert ventricular drainage tube by using seal wire.But, because skull is an arc, sclerotin is hard, and inner table of skull and cerebral dura mater and brain cortex are separated by very near, the cranium awl is difficult for fixing when using common skull brad awl hole, skid easily, and effort, penetrate and be difficult for behind the skull in time stopping, damage brain cortex easily, because the cranium awl is extracted, and scalp soft tissue and bone pore volume easily misplace, cause to put and manage difficulty when holing rearmounted the pipe.Though the intermediary passage of application of sleeve after boring saturating skull that existing modified model cranium awl has is put pipe, all existence is put when how to extract sleeve pipe behind the pipe not the problem of putting drain pipe racks from institute's riding position.

Summary of the invention

Can not be effectively fixing when overcoming existing skull brad awl hole, effort, can not in time stop after the boring, put when pipe operating difficulties and put pipe after be difficult to guarantee the deficiency of its riding position, this utility model provides a kind of practicality adjustable bushing type cranium awl, and this cranium awl has and not only can carry out effectively fixing when boring, and is laborsaving during boring, and can after boring, in time stop, putting tube side and just reach and put the advantage that is difficult for change drainage tube position when extracting sleeve pipe behind the pipe.

The technical scheme that its technical problem that solves this utility model adopts is: a tripod is installed in the outside at the cranium taper bushing, thereby plays fixedly cranium awl and anti-skidding effect when the skull brad awl hole.Engrail is done at the tip of cranium taper bushing, cooperates with the drill bit of cranium awl inner core, and the speed of cutting sclerotin in the time of can increasing boring plays the labour-saving effect.Cranium taper bushing outside has external screw thread to engage with tripod, and the degree of depth that can well keyhole in time stops.After boring skull, extract the cranium awl inner core in the sleeve pipe, put pipe by the sleeve pipe of hollow, convenient and strength-saving.After putting pipe, counter-rotating cranium taper bushing T type handle can be easily withdraws from sleeve pipe in the skull and does not influence the riding position of drainage tube.

The beneficial effects of the utility model are, when using this cranium awl to carry out sphenotresia, and fixedly cranium awl and boring easily, in time stop after boring skull, safe and reliable, conveniently put pipe after the boring and treat operation, put pipe back drainage tube riding position when withdrawing from the cranium awl and can not change.

Description of drawings

Below in conjunction with drawings and Examples this utility model is further specified.

Fig. 1 is the complete vertical section structural map of this utility model cranium awl

Fig. 2 is the vertical section structural map of cranium taper bushing

Fig. 3 is the vertical section structural map of cranium awl inner core

Fig. 4 is the vertical section structural map of cranium awl tripod

Fig. 5 is the vertical view of cranium awl tripod

Fig. 6 is the vertical view after the cranium taper bushing is installed cranium awl inner core

1. cranium taper bushing T type handles among the figure, the 2. vertical sleeve pipe of cranium taper bushing, 3. vertical sleeve pipe external screw thread, 4. vertical telescopic jagged edge, 5. cranium awl inner core hold-down screw, 6. cranium awl inner core T type handle, 7. cranium is bored inner core, 8. cranium is bored the drill bit of inner core, 9. the fixed groove of cranium awl inner core, 10. tripod nut, 11. the leg of tripod, 12. the anti-skidding stricture of vagina of horizontal type of tripod leg end, 13. tripod leg hold-down nuts, the interface of 14. tripods and cranium taper bushing.

The specific embodiment

In Fig. 1, this utility model cranium awl is made up of cranium taper bushing (Fig. 2), cranium awl inner core (Fig. 3), tripod (Fig. 4).Earlier cranium awl inner core (Fig. 3) is put into cranium taper bushing (Fig. 2) during use, be fixed together by the engage vertical sleeve pipe 2 and the cranium awl inner core 7 that make the cranium taper bushing of cranium awl inner core hold-down screw 5 with the fixed groove 9 of cranium awl inner core, and can regulate cranium and bore the length that the drill bit 8 of inner core stretches out vertical telescopic jagged edge 4, after cranium taper bushing (Fig. 2) and cranium awl inner core (Fig. 3) engages, with the engaging of interface 14 of cranium taper bushing tripod nut 10 is installed on the cranium taper bushing by vertical sleeve pipe external screw thread 3 and tripod.

When cranium awl uses, by regulating the height that leg 11 that tripod leg hold-down nut 13 changes tripods contacts with scalp, and assist the fixed triangle frame by the anti-skidding stricture of vagina 12 of the horizontal type of tripod leg end.The doctor is by holding cranium taper bushing T type handle 1 rotary sleeve pipe bit cranium in operation, bores behind the skull owing to there is vertical sleeve pipe external screw thread 3 to engage with tripod nut 10, so can in time stop after thoroughly at brill.Bore rotation cranium awl inner core hold-down screw 5 behind the skull, unclamp 9 engage with the fixed groove of cranium awl inner core, extract cranium awl inner core 7, treat by the vertical sleeve pipe 2 intermediary passages of cranium taper bushing and operate and put pipe.After putting the duct ligation bundle, counter-rotating cranium taper bushing T type handle 1 withdraws from the vertical sleeve pipe 2 of cranium taper bushing from skull.

Claims

1. the adjustable bushing type cranium of practicality is bored, by the cranium taper bushing, cranium awl inner core, tripod is formed, it is characterized in that: vertical sleeve pipe (2) skin of cranium taper bushing has sleeve pipe external screw thread (3), vertical cannula tip is zigzag (4), cranium awl inner core hold-down screw (5) is arranged on the vertical telescopic pipe shaft, above the cranium awl inner core fixed groove (9) is arranged, the inner core tip is screw thread drill bit or spiral bit (8), tripod engages with vertical sleeve pipe external screw thread (3) by nut (10), the cranium taper bushing is connected with tripod, by the angle that tripod leg (11) hold-down nut is regulated the tripod leg, tripod leg end is the anti-skidding stricture of vagina of horizontal type (12).

2. practicality according to claim 1 is adjustable, and the bushing type cranium is bored, the skin that it is characterized in that cranium taper bushing T type handle and tripod leg is annular knurl or the anti-skidding design of frosted, cranium taper bushing handle (1) becomes the T type with vertical sleeve pipe (2), and the handle (6) of cranium awl inner core becomes the T type with cranium awl inner core (7).