CN201216797Y - Dura mater downward guide apparatus - Google Patents

Abstract

The utility model provides subdural guide apparatus and relates to a surgical instrument used for an operation on neurocranium, which is composed of a guiding head (1), a catheter (2) and a handle (3) and characterized in that the arc-shaped guiding head (1) is connected with the front end of the catheter (2); the handle (3) is connected with the rear end thereof; and the handle (3) and the catheter (2) present an angle of 150 DEG. The subdural guide apparatus has the advantages that the structure is simple, the operation is convenient, and a drain tube can be bended to the angle required by a surgery, or even stick to the dura mater and extend inwards, thereby enabling the drain tube to go deep into the hematoma part as large ranged as possible, so as to avoid the problems in the prior art of prolonged operation time and increased operation wounds caused by amplifying bone holes.

Description

Guider under the dura mater

Technical field

This utility model relates to the operating theater instruments of brainpan operation usefulness, is particularly useful for " chronic subdural hematoma " and reaches neurosurgery disease surgeries such as " chronic subdural effusion ".

Background technology

At present, treatment " chronic subdural hematoma " modus operandi that reach " chronic subdural effusion " mainly adopts irrigation and drainage art under the dura mater of holing.Its operative process is: cut cerebral dura mater behind the sphenotresia, emit the courageous and upright liquid of part after, dispose into drainage tube in the bone hole and to wash repeatedly, treat flushing thoroughly after, indwelling drainage tube.Usually in operation technique, because space, bone hole is little, it is limited that the drainage tube head end is inserted the cavum subdurale angle, can run into cerebral tissue etc. " barrier " and change direction, document often has drainage tube to insert cerebral tissue and causes the report of contusion and laceration of brain, and therefore, this requirements of operation doctor is in that to put the Guan Shixu action soft, and often need peel off son guiding drainage tube, to avoid the cerebral tissue that stabs as far as possible with an arc nerve; Sometimes after hematoma liquid is emitted, be subjected to the cerebral tissue meeting of hematoma compression swollen multiple, at this moment, as put the hematoma liquid that pipe washes residual flow under the dura mater, then very easily stab cerebral tissue.The doctor who has puts pipe to sting except that the mode in bone edge expansion bone hole, though increased space, bone hole like this, is beneficial to and puts pipe, has prolonged operating time, has strengthened the wound in the operation.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and is not enlarging under the condition of bone hole, can make guider under the dura mater that drainage tube safety inserts easily.

The purpose of this utility model is achieved in that guider is made up of guide head, conduit, handle under this dura mater, and catheter proximal end is connected with the arcuate guide head, and the rear end is connected with handle, and the angle between handle and the conduit is 150 °.The arcuate guide head can make drainage tube change direction when the bone hole, avoids directly running into cerebral tissue and causes brain tissue impairment; After drainage tube penetrated conduit, conduit can effectively be controlled the direction of drainage tube, increased the stability of drainage tube, reduce because of operate miss to brain tissue injury.

Advantage of the present utility model: simple in structure, easy to operate, can make drainage tube bend to the required angle that reaches of operation, even pasting dura mater and extending internally, thereby make drainage tube can go deep into hematoma portion as far as possible on a large scale, avoided in the existing operation by enlarging the prolongation operating time that cause in the bone hole, the problem of increasing operation wound.

Description of drawings

Accompanying drawing is a structure chart of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is described in further detail: guider is made up of guide head 1, conduit 2, handle 3 under this dura mater, and conduit 2 front ends are connected with arcuate guide 1, and the rear end is connected with handle 3, and the angle between handle 3 and the conduit 2 is 150 °.

Claims (1)

1, guider under a kind of dura mater is made up of guide head (1), conduit (2), handle (3), it is characterized in that conduit (2) front end is connected with arcuate guide head (1), and the rear end is connected with handle (3), and the angle between handle (3) and the conduit (2) is 150 °.

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