CN205286456U - Non - cranium bores skull windowing facility - Google Patents

Abstract

The utility model belongs to the technical field of operation equipment, concretely relates to non - cranium bores skull windowing facility. The utility model discloses mainly solve traditional skull and window and have that the window is little, the operation is hard and the difficult control of operation accuracy, easily lead to the fact secondary damage's problem. The utility model relates to a non - cranium bores skull windowing facility comprises handle and operating portion, sets up the screw rod in the middle of the lower extreme of handle, the operating portion is equipped with thread groove by the shell, in the middle of the top surface of shell, thread groove matches with the screw rod and uses, and the bottom the circumference uncovered and shell of shell sets up the round sawtooth, is equipped with a fixed needle in the shell, and the top of fixed needle is passed through the spring and is fixed in the centre of thread groove's surface, and the lower extreme of fixed needle extends to the outside of shell under the normal condition. The utility model has the advantages of easily carry, easy operation, it is controllable, with low costs.

Description

A kind of non-cranium bores skull windowing facility

Technical field

This utility model belongs to surgical apparatus technical field, is specifically related to a kind of non-cranium and bores skull windowing facility.

Background technology

Skull windowing technology is extensive use in experiment and clinic. In an experiment, the first step of intracranial administration, intracranial electrophysiological recording etc. is exactly that skull is windowed. Clinically, skull is windowed and is played pivotal role in the neurosurgery such as Fenestration of patients with cerebral hemorrhage. Nowadays, when carrying out skull and windowing, it is common to use traditional Electric drill-bit carries out cranium brill, patient handles and requires great effort very much. In operation technique, the full hand visual sense with patient judges whether skull drills through, and slightly neglects, overexerts, and drill bit will thrust brains, cause the danger of heavy damage. And very easily cause cerebral concussion, unfavorable for the observation of physical signs after experimentation. Conventional drilling device for skull, single can only beat the hole that diameter is only small, if thinking, large area opens cranium, manual annular is then needed to cut, the skull that this mode carries out shape of windowing is often irregular, this signal of telecommunication that intracranial not only can be placed electrode produces impact, but also causes great difficulty can to the electrode that need to place for a long time or the fixing of delivery tube. In this external annular cutting, slightly neglecting and very easily injure coronal suture and lambdoid suture, thus causing cranium venous sinus injury and hemorrhage, not easily bouncing back because hole wall is tough and tensile, hemorrhage being often difficult to is stopped.

Utility model content

This utility model window mainly for traditional skull exist window little, operation effort and operation accuracy difficulty control, the problem easily causing secondary injury, it is provided that a kind of non-cranium bore skull windowing facility.

This utility model is the technical scheme that solution the problems referred to above are taked:

A kind of non-cranium bores skull windowing facility, it is made up of handle and operating portion, screw rod is set in the middle of the lower end of handle, described operating portion by shell, in the middle of the end face of shell, be provided with thread groove, thread groove mates use with screw rod, and uncovered and shell the lower circumference in the bottom of shell arranges a circle sawtooth, is provided with a fixing pin in the enclosure, the top of fixing pin is fixed on the centre of the outer surface of thread groove by spring, and the lower end fixing pin under normal condition extends to the outside of shell.

Further, this utility model is additionally provided with ejection rod in the enclosure, the top of ejection rod is fixed on the top of shell by ejecting spring, the middle and upper part of ejection rod is provided with push rod, push rod extends to the outside of shell, and local setting theed match with push rod on shell pushes away groove, push rod can push away in groove up and down.

Outer surface at outer casing underpart is uniformly arranged multiple positioning boss.

Described shell and ejection rod are all cylindric.

This utility model adopts technique scheme, handle and operating portion are linked together by screw rod and thread groove, facilitate the dismounting of handle and operating portion, bosom at operating portion shell arranges fixing pin, first position with fixing pin during use, then firmly it is screwed down shell, the sawtooth of outer casing bottom will open a circular hole, when boring, fixing pin can move down in automatic pressing retraction shell along with shell, do not affect moving down of shell, take off boring the skull fallen in order to convenient, it is provided with columned ejection rod in the enclosure, have only to push down on push rod with hands when so using, ejection rod will move down therewith, and then the skull on sawtooth is turned down, after decontroling push rod, ejection rod can under the pulling force ejecting spring in automatic retraction shell. for the degree of depth of keyhole, this utility model is provided with positioning boss in the bottom of outer surface of outer cover, and so can effectively prevent from windowing injures Intracranial structure and tissue deeply. therefore, compared with prior art, this utility model has the advantages that 1, effectively controls the size of open pore size. relative to the tradition single defect punched one by one of drilling device for skull in the past, this utility model can large area be windowed, and is possible not only to visual and clear large-area cerebral tissue of observing, but also can reduce the skull interference to experimental electrode, 2, by stably fixing pin, the distance of needle body and the surgical location center of circle is accurately regulated, the size of the diameter that accurately controls to window, 3, the big I of cranium window regular, constant, adjustable and correspondingly sized adapter match, be conducive to intracranial electrode or delivery tube fixing, 4, can the position of the opened cranium window of comparison before windowing, it is to avoid injure venous sinus thus causing uncontrollable appearance, 5, the degree of depth is controlled, will not injure Intracranial structure and tissue when windowing, 6, the manual turn on window of non-electric drill formula, is effectively reduced the cerebral concussion in art, 7, this utility model is relative to traditional Electric drill-bit, portable, easily operates, controlled, and cost is low.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

As shown in Figure 1, a kind of non-cranium bores skull windowing facility, it is made up of handle 1 and operating portion, screw rod 2 is set in the middle of the lower end of handle 1, described operating portion is by cylindrical shell 3, thread groove 4 it is provided with in the middle of the end face of shell 3, thread groove 4 mates use with screw rod 2, uncovered and shell 3 the lower circumference in the bottom of shell 3 arranges a circle sawtooth 5, a fixing pin 6 it is provided with in shell 3, the top of fixing pin 6 is fixed on the centre of the outer surface of thread groove 4 by spring 7, the lower end fixing pin 6 under normal condition extends to the outside of shell 3, cylindric ejection rod 8 it is additionally provided with in shell 3, the top of ejection rod 8 is fixed on the top of shell 3 by ejecting spring 9, the middle and upper part of ejection rod 8 is provided with push rod 10, push rod 10 extends to the outside of shell 3, and local setting theed match with push rod 10 on shell 3 pushes away groove 11, push rod 10 can push away in groove 11 up and down, outer surface in shell 3 bottom is uniformly arranged multiple positioning boss 12.

Claims (4)

1. a non-cranium bores skull windowing facility, it is characterized in that being made up of handle (1) and operating portion, screw rod (2) is set in the middle of the lower end of handle (1), described operating portion is by shell (3), thread groove (4) it is provided with in the middle of the end face of shell (3), thread groove (4) mates use with screw rod (2), uncovered and shell (3) the lower circumference in the bottom of shell (3) arranges a circle sawtooth (5), a fixing pin (6) it is provided with in shell (3), the top of fixing pin (6) is fixed on the centre of the outer surface of thread groove (4) by spring (7), the lower end fixing pin (6) under normal condition extends to the outside of shell (3).

2. non-cranium according to claim 1 bores skull windowing facility, it is characterized in that being additionally provided with ejection rod (8) in shell (3), the top of ejection rod (8) is fixed on the top of shell (3) by ejecting spring (9), the middle and upper part of ejection rod (8) is provided with push rod (10), push rod (10) extends to the outside of shell (3), and push away groove (11) in the upper local setting matched with push rod (10) of shell (3), push rod (10) can push away in groove (11) up and down.

3. non-cranium according to claim 1 bores skull windowing facility, it is characterized in that the outer surface in shell (3) bottom is uniformly arranged multiple positioning boss (12).

4. non-cranium according to claim 1 and 2 bores skull windowing facility, it is characterized in that described shell (3) and ejection rod (8) are all cylindric.