CN2855427Y

CN2855427Y - Needle tubing for intracranial puncture and drainage

Info

Publication number: CN2855427Y
Application number: CN 200520005093
Authority: CN
Inventors: 徐屹
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-03
Filing date: 2005-03-03
Publication date: 2007-01-10
Anticipated expiration: 2015-03-03

Abstract

The utility model discloses a needle tube that is used for encephalic puncture and drainage, comprising a hollow tube, a base connecting with the tail of tube and a reaming head at the front end of the tube. The utility model is characterized in that the reaming head is provided with two symmetrical indented cutting edges with a flat end, which solves the problem of the unreasonable structure of the existing encephalic puncture drainage needle tube; the saw teeth on the flat end of reaming head can drill and cut a skull smoothly. Under the condition of ensured cutting force, the safety of using the utility model is improved and the possible trauma to the brain tissues and blood vessels can be largely reduced or fully avoided.

Description

The needle tubing of a kind of intracranial puncture, drain

Technical field

This utility model relates to the needle tubing of a kind of intracranial puncture, drain, especially for treatment intracranial hematoma, the puncture of cystic lesion, drain, pulverizing, flushing, suction.

Background technology

Various intracranial hematomas of traditional treatment and cystic lesion, hypertensive cerebral hemorrhage, traumatic intracranial hematoma, internal capsule of brain is swollen and the method for disease such as cystic tumor is operation of opening cranium, adopts that the therapeutic method of surgery wound is big, expense is high and armarium and patient's self-condition are had certain requirement.

Also there is the flexible pipe of employing drainage method to treat at present, this method is to hole on skull, drill bit is taken out, again drainage tube being put into intracranial aspirates, owing to need secondary to put pin, flexible pipe is difficult for arriving hard hematoma center, and the yielding obturation of flexible pipe, and this kind method easily causes patient's brain tissue impairment, the cerebral tissue secondary is hemorrhage and the hematoma inadequate drainage so adopt.

Chinese patent ZL93244252.8 discloses a kind of intracranial hematoma and has pulverized puncture needle, and it is made up of needle body, nook closing member, hematoma destructor, band top nut.Needle body is a hollow tubular, and the rear end cooperates with band apical pore nut, and the nook closing member front end is blunt round, and the hematoma destructor is the needle tubing shape, and the front end sealing has at least one micropore near the end, and afterbody has a stator.Adopt this puncture needle to the various hematoma of patient's intracranial aspirate, pulverizing, drain, flushing etc., substituted traditional operation of opening cranium, patient's misery is very little, damage is slight.But owing to need secondary to put pin, seek difficulty of bone boring ratio, thus the probability that the outer blood of cranium enters intracranial can be increased, and also after puncture needle put into intracranial, needle body can't be fixed, and its front end is swung in cerebral tissue, easily causes brain tissue impairment.And the design of pulverizing pin is unreasonable and processing technique does not reach requirement, and product finds not reach the purpose of pulverizing hematoma in clinical practice, on the contrary cerebral tissue and the normal cerebral tissue that has damaged is had obvious impairment on every side, and most patients should ban use of.

In view of this, Chinese patent ZL01200758.7 discloses a kind of drain for intracranial puncture, needle tubing and drill bit are all one, during boring, needle tubing is in drill bit enters skull, needle tubing can be directly to and reaches the focus center, and needle tubing is fixed on the skull, needle tubing is difficult for swing in cerebral tissue, the drainage system and the needle tubing that are provided with medicine-pouring hole are linked, can either realize drain, hematoma destructor and hematoma flushing aspirator are inserted needle tubing, both can remove the hematoma dead angle, can carry out the pulverizing flushing and the suction of maximum aspect to hematoma with hematoma destructor and hematoma flushing aspirator.But in the practice, the front end of its needle tubing is most advanced and sophisticated jagged shape and sawtooth angle, has increased cranium brain and cerebrovascular damage probability and degree, easily sends out hematoma again in the further damage of carbuncle in the occipital region tissue and the brain, reduces clinical efficacy and safety in utilization.

Summary of the invention

At the deficiency of existing needle tubing front-end architecture, this utility model provides the damage that can reduce the cranium brain, the needle tubing that improves a kind of intracranial puncture drainage of safety, increase value for clinical application.

To achieve these goals, the technical scheme that this utility model adopted is: a kind of needle tubing of intracranial puncture drainage, the reaming head that comprises hollow tube body, the base that is connected with the body afterbody and body front end, it is characterized in that: described reaming head has the cutting edge of two flush ends, indentation, is 170 °～180 ° symmetric arrangement.

The front edge of the cutting edge of described flush end, indentation is closely vertical with described body front end face; Hypotenuse relative with front edge and front edge form the chip area that is shape.Be beneficial to cutting and chip removal

Wherein, linearly or the arc shaped of described hypotenuse for slightly upwards caving in

Reasonably chip area makes chip removal unobstructed, and the angle of described chip area is 45 °～85 °; Preferred 60 °～80 °.

The bottom of described chip area becomes circular-arc or linearity.

Be provided with one or two side conduction hole in described body end, this hole is located at the below of contiguous described sawtooth hypotenuse, to improve the intensity of front edge (cutting edge) side, avoids its intensity to reduce, and improves the service life of needle tubing.

Owing to adopt technique scheme, adopt the cutting edge of two flush ends, make the end major part of reaming head be the plane, when drilling and suction irrigation and drainage, reduce, reduced injured brain tissue and cerebrovascular chance when reaming, realize slick and sly drilling skull cerebral tissue and cerebrovascular damage, reduce the gap between needle tubing and skull, increased the relative skull stability of pin, owing to adopted the flush end sawtooth to have more safety, avoided the damage that may cause cerebral tissue and cerebrovascular.The two-edged symmetric arrangement makes the drill thrust equilibrium.

Description of drawings

Fig. 1 is the side view of the embodiment one of this utility model intracranial puncture drainage needle tubing;

Fig. 2 is the front end sectional perspective sketch map of needle tubing shown in Figure 1;

Fig. 3 is the another structure partial sketch map of needle tubing of the present utility model.

The specific embodiment

Show as Fig. 1, Fig. 2, the needle tubing of having showed a kind of drain for intracranial puncture among the figure, it comprises hollow tube 11, the base 12 that is connected with body 11 afterbodys and the reaming head of body front end, its base 12 is used for being connected with drill bit or drainage system, described reaming head has the cutting edge 13 of two flush ends, indentation, is symmetric arrangement with 180 ° of the bests.The cutting edge 13 of described flush end, indentation is formed by a groove that is shape, and an one limit is that front edge 131 is vertical with described body 11 front end faces; Another is the hypotenuse 132 relative with front edge 131, and the groove that hypotenuse 132 and front edge 131 form is chip area 133, and the included angle A of described chip area is 75 °.At this moment, hypotenuse 132 is 15 ° with the included angle B of front end face, and its chip removal is preferable, and the included angle A of this chip area 133 is preferably between 70 °-80 °.It is circular-arc that the bottom of described chip area 133 becomes, and is convenient to processing on the one hand, avoids occurring the dead angle on the other hand, makes chip removal not smooth.

Wherein, in the present embodiment, described hypotenuse 132 is camber or linearity.In addition, after boring, take out drill bit, needle tubing is stayed, when carrying out drain or carrying out the hematoma crushing operation, can insert hematoma destructor and drainage tube in addition.Also can directly use needle tubing of the present utility model to aspirate irrigation and drainage, so, being provided with side conduction hole 14 in 11 ends of needle tubing, described side conduction hole 14 is one or two, is located at the below of contiguous described hypotenuse 132.

Referring to Fig. 3, showed another embodiment of the present utility model among the figure, itself and a last embodiment difference are: wherein form the arc shaped of hypotenuse 132 for slightly giving prominence to the end face direction of chip area 133, such optimum structure makes chip removal more smooth.

It should be noted that, needle tubing of the present utility model is the improvement of making on the basis of the needle tubing that discloses in ZL01200758.7 drain for intracranial puncture, be intended to solve the irrationality of the reaming head construction that has needle tubing now, improve its possibility, improve the safety of using brain tissue impairment.When it uses, cooperate with drill bit earlier and together carry out drilling, bore skull and enter the interior focus of brain; Take out drill bit again, carry out hematoma and pulverize; Then, connect drainage system and seal cover at base position again, aspirate, flushing, drain, injection.Therefore, needle tubing of the present utility model is the double reamer usefulness of doing on the one hand, with together drilling of drill bit; Also be also used as needle tubing, do not need the secondary inserting needle, can cooperate the hematoma destructor to carry out hematoma and pulverize; And the also double drainage tube of doing of needle tubing of the present utility model, can carry out drain in its afterbody base cooperation with the drainage system machine, but preventing intracranial infection, the seal cover of injection takes place.

Claims

1. the needle tubing of intracranial puncture, drain, the reaming head that comprises hollow tube body, the base that is connected with the body afterbody and body front end, it is characterized in that: described reaming head has the cutting edge of two flush ends, indentation, is 170 °～180 ° symmetric arrangement.

2. the needle tubing of intracranial puncture according to claim 1, drain is characterized in that: the front edge of the cutting edge of described flush end, indentation is approaching vertical with described body front end face; Hypotenuse relative with front edge and front edge form and are The chip area of shape.

3. the needle tubing of intracranial according to claim 2 puncture, drain is characterized in that: the arc shaped of described hypotenuse linearly or or depression outstanding for downward direction slightly upwards or slightly.

4. the needle tubing of intracranial puncture according to claim 2, drain, it is characterized in that: the angle of described chip area is 45 °～85 °.

5. according to the needle tubing of claim 2 or the puncture of 3 described intracranial, drain, it is characterized in that: the optimum angle of described chip area is 60 °～80 °.

6. the needle tubing of intracranial puncture according to claim 4, drain, it is characterized in that: the bottom of described chip area becomes circular-arc or linear type.

7. the needle tubing of intracranial puncture according to claim 2, drain is characterized in that: be provided with one or two side conduction hole in described body end.

8. the needle tubing of intracranial puncture according to claim 7, drain is characterized in that: described side conduction hole is one or two, is located at the below of contiguous described sawtooth hypotenuse.