CN2551185Y

CN2551185Y - Cranial bone perforating fixer

Info

Publication number: CN2551185Y
Application number: CN 02237860
Authority: CN
Inventors: 华勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-11
Filing date: 2002-06-11
Publication date: 2003-05-21
Anticipated expiration: 2012-06-11

Abstract

The utility model relates to a crania piercing fixer, comprising a hollow duct, a drill bit, and an outside cover, wherein, one end of the hollow duct is flat; threads are arranged at the outer wall of the other end of the hollow duct; two long shank nuts are screwed with the other end of the hollow duct; a fixed spherical body is arranged at the mid and rear part of the drill bit for preventing the drill bit from excessive extension; threads are arranged at the inner circumference of the concave side of the outside cover, and the convex side becomes a hollow tube due to diameter reduction and is sleeve-jointed with a rubber duct. While doing intracranial hematoma puncture or placing the drainage duct in the crania, the thickness of the crania is measured, and then the nuts on the hollow duct are adjusted to the proper distance for vertical drilling into the crania; meanwhile, the hollow duct is arranged among the scalp, the crania, and the dura mater, and is used as the tissue support to prevent the brain and blood vessel from injury; the drill bit and the puncture needle are drawn out of the crania, and the drainage duct is operated through the hollow duct, when the operation is finished, the threads at the inner circumference of the outside cover are screwed with the threads at the outer circumference of the second screw to perform the function of fixation of the drainage duct, cavity clearance sealing, avoidance of duct bending, and prevention of intracranial infection.

Description

Skull connects holder

Technical field:

Should be with the novel medical apparatus that belongs to, particularly a kind of skull connects holder.

Background technology:

At present the cranial drill that uses clinically, taper hole device are existing multiple, are the assistive devices of intracranial hematoma puncture, EVD art, purpose be cranial drill is saturating, awl is saturating, is beneficial to inserting of puncture needle, drainage tube.But above-mentioned utensil is owed accurately and is perfect, often can not penetrate skull because of crossing shallow boring taper hole in operating process, crosses the defective that easily causes intracranial tissues, blood vessel injury deeply.

Summary of the invention:

The technical problem that this utility model solves, be to provide a kind of skull to connect holder, purpose does not accurately have the pair damage and connects skull, inserts the scalp skull simultaneously to the support of epidural fixed sleeving as puncture, drain, remedies the deficiency of boring cranium, taper hole initiation brain tissue impairment.

Technical solutions of the utility model realize: it is made of hollow tubing conductor, drill bit, enclosing cover, it is characterized in that: the long 2.5--3.5 centimetre of hollow tubing conductor, one end is flat-head shape (set terminal), and the screw buckle of 1.5--2 centimetre is arranged on the end outer wall, is rotatably connected with two circle handle shape nuts at (the outer end of keeping somewhere).The second nut outer rim has screw buckle, also claims locknut.The drill bit rear portion is the rhizoma sparganic type and is connected with the power drill dop, from the rhizoma sparganic type to the drill bit direction along having a spheroidal thing to be fixed on the drill bit body to 3 centimeters, the long outstanding hollow tubing conductor of restriction drill bit, the scope that drill bit exceeds hollow tubing conductor is 0.3 centimeter.Enclosing cover is circular, and the concave side inner peripheral has screw buckle to be rotatably connected with locknut, and protruding side undergauge is hollow tubular and sebific duct socket.

Description of drawings:

Accompanying drawing: this utility model skull connects holder, it is by hollow tubing conductor 1, the first circle handle nut 2, the second circle handle nut 4 and these locknut outer peripheral edges have screw buckle 5, hollow tubing conductor outer wall thread button 3, drill bit 6, spherical shape fixture 7 is connected rhizoma sparganic straight coupling 8 with power drill, enclosing cover 9, enclosing cover concave side female thread button 10, the enclosing cover undergauge is to tubulose 11.

Embodiment:

A kind of novel skull connects holder by hollow tubing conductor, drill bit, enclosing cover constitutes, during use, at first record the hematoma position or select the ventricular drainage point of puncture according to computed tomography, measure the thickness of skull, adjust hollow tubing conductor place nut 2, after the adjustment, with second nut locking Fig. 4, then pass through hollow tubing conductor 1 to the skull vertical drilling with drill bit 6, after skull drills through, hollow tubing conductor 1 is put simultaneously stays scalp, between skull and the epidural as the support that connects above-mentioned tissue, withdraw from drill bit 6 then, use puncture needle, drainage tube is operated, end of operation is placed drainage catheter, direct motion penetrates from enclosing cover flexible rubber hose Figure 11 pipeline earlier, again by connecting the hollow tubing conductor of skull, after drainage tube put into the accurate position of intracranial, enclosing cover 9 is moved to second nut (locknut) 4, associativity is tightened, drainage catheter is fixed on the skull, the enclosing cover undergauge is to tubulose and sebific duct socket, and drainage catheter passes from central authorities, and the flexible fastening of sebific duct conduit, lacuna around having sealed simultaneously is for avoiding drainage catheter to give a discount and preventing intracranial infection to play an important role.

The effect that the utility model is useful is: connect skull, insert hollow tubing conductor, played head Skin, skull prevent brain tissue, injury of blood vessel to the support effect between endocranium, increase safety The property. Enclosing cover is fixing to drainage catheter, has sealed the outer lacuna of encephalic, infects for prevention, plays Positive role.

Claims

1, a kind of skull connects holder, it is by hollow tubing conductor, drill bit, enclosing cover constitutes, it is characterized in that: the long 2.5--3.5 centimetre of hollow tubing conductor, one end is tack opening shape, the screw buckle that the 1.5--2 centimetre is arranged on the one end outer wall, be rotatably connected with two circle handle shape nuts, the second nut outer peripheral edges have screw buckle, claim locknut again, drill bit exceeds 0.3 centimeter of hollow tubing conductor, and the spherical fixture of drill bit body has limited the drill bit hyperextension, enclosing cover is circular, the screw buckle of concave side inner peripheral is rotatably connected with locknut outer peripheral edges screw buckle, and protruding side undergauge is to hollow tubular and sebific duct socket.

2, according to claim 1, skull connects holder, it is characterized in that: long 3 centimeters of hollow tubing conductor, the screw buckle end nut rotates 2 centimeters of movings range up and down.

3, according to claim 1, skull connects holder, it is characterized in that drill bit exceeds 0.3 centimeter of hollow tubing conductor.