Intracranial hematoma drain tube
Technical field
The present invention relates to a kind of Intracranial hematoma drain tube.
Background technology
At present, the structure of existing Intracranial hematoma drain tube is: it comprises, and front end is closed, the circular body of rear end opening, the material of body is elastic solid (Hookean body) silicone rubber (one for medical silica-gel), the front side circumference of body arranges two symmetrical rounds, all have some along the spaced apart aperture of body axis direction in every round, the diameter of bore of body and the ratio of hole diameter are (2 ~ 4): 1, visible, and the diameter of aperture is less;
When puncture or tube drawing, guid needle to insert in body and with body before end in contact, the material of guid needle is generally titanium alloy or stainless steel material.
Elastic solid (Hookean body) silicone rubber has good biocompatibility, to tissue nonirritant, avirulence, few without anaphylaxis, body rejection; Having good physicochemical property, can keep its original elasticity and pliability, be not degraded with body fluid and contact tissue process, is a kind of inert substance of quite stable.Can be high temperature resistant, can sterilize.Machine-shaping is convenient, and easily processing engraving shape, easy to use.
In drainage process, adopt existing Intracranial hematoma drain tube, the clot of intracranial, easily by aperture clogs, causes drain obstructed, and this makes troubles to the nursing of patient's Craniotomy and inconvenience, also brings negative effect to the rehabilitation speed of patient and rehabilitation result.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of drainage effect preferably Intracranial hematoma drain tube.
For solving the problems of the technologies described above, the invention provides a kind of Intracranial hematoma drain tube, it comprises, and front end closed, the circular body of rear end opening, the material of body is elastic solid (Hookean body) silicone rubber;
There are the spaced apart some evagination arc strips of circumference the front side of body, a gap is all had between every two adjacent arc strips, the length trend of string corresponding to arc strip moves towards consistent with the axis of body, each gap is all communicated with the endoporus of body, and the ratio of the diameter of bore of body and the length of described string is 1:(3 ~ 6);
When puncture or tube drawing, guid needle to insert in body and with body before end in contact, forces arc strip to extend, falls after rise, so that the cross sectional shape on front side of body be circular, and a formation axially extended bar-shaped trough between every two adjacent arc strips.
For the purpose of concise description problem, below to Intracranial hematoma drain tube of the present invention all referred to as this drainage tube.
During puncture, this drainage tube first enters intracranial (now by means of guid needle, cross sectional shape on front side of body is circular), after guid needle is extracted in body, the elastic restoring force that body is had by himself, make the front side of body have the spaced apart some evagination arc strips of circumference, and under the effect that encloses of some arc strips, form the spaced apart some gap of circumference (now, this drainage tube is the drain state after puncture).
Known as mentioned above, the ratio of the diameter of bore of body and the length of described string is 1:(3 ~ 6), and the length of string corresponding to arc strip is the axis projection length of arc strip, therefore the axis projection length of arc strip is much larger than the diameter of bore of body, so that gap between every two adjacent arc strips, its axial length certainly will also much larger than the diameter of bore of body.
Because of this, in drainage process, the clot of intracranial is difficult to block described gap, the clot that intracranial produces can realize with arriving with row, the promptness of clot discharge is better, eliminates the defect affecting this drainage tube drainage effect to a certain extent, so that the drain of this drainage tube is unobstructed, drainage effect is better.This offers convenience to the nursing of patient's Craniotomy, also brings positive influences to the rehabilitation speed of patient and rehabilitation result.
The specification of described arc strip is identical, so that the specification of identical, each bar-shaped trough of the specification of each gap is also identical.Like this, this drainage tube is easy to processing, and cost is lower.
The quantity of described arc strip is three or four.Like this, simply and rationally, the respective strengths of its axis is better for the structure of this drainage tube.
Accompanying drawing explanation
Fig. 1 is the axonometric chart (this drainage tube is in the drain state after normal morphology or puncture) of this drainage tube embodiment 1.
Fig. 2 is the front view (this drainage tube is in the drain state after normal morphology or puncture) of this drainage tube embodiment 1.
Fig. 3 is A-A sectional view of Fig. 2.
Fig. 4 is another axonometric chart (using state when using state when this drainage tube is in puncture or tube drawing) of this drainage tube embodiment 1.
Fig. 5 is the structural representation (using state when using state when this drainage tube is in puncture or tube drawing) of this drainage tube embodiment 1.
Fig. 6 is B-B amplification view of Fig. 5.
Fig. 7 is the axonometric chart (this drainage tube is in the drain state after normal morphology or puncture) of this drainage tube embodiment 2.
Fig. 8 is the front view (this drainage tube is in the drain state after normal morphology or puncture) of this drainage tube embodiment 2.
Fig. 9 is C-C amplification view of Fig. 8.
Figure 10 is another axonometric chart (using state when using state when this drainage tube is in puncture or tube drawing) of this drainage tube embodiment 2.
Figure 11 is the structural representation (using state when using state when this drainage tube is in puncture or tube drawing) of this drainage tube embodiment 2.
Figure 12 is D-D amplification view of Figure 11.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are specifically described:
Embodiment 1
See Fig. 1 to Fig. 6:
This drainage tube comprises front end and closes, the circular body 1 of rear end opening, the material of body 1 is elastic solid (Hookean body) silicone rubber, there are spaced apart three the evagination arc strips 11 of circumference the front side of body 1, a gap 12 is all had between every two adjacent arc strips 11, the length trend of string corresponding to arc strip 11 moves towards consistent with the axis of body 1, each gap 12 is all communicated with the endoporus of body 1, the ratio of the diameter of bore of body 1 and the length of described string is for 1:6(is for the purpose of clearly describing the problem, in Fig. 1 to Fig. 4, body 1, arc strip 11 is unactual to be illustrated according to aforementioned proportion).
When puncture or tube drawing, guid needle 2 to insert in body 1 and with body 1 before end in contact, force arc strip 11 to extend, falls, so that the cross sectional shape on front side of body 1 be circle, and a formation axially extended bar-shaped trough 13 between every two adjacent arc strips 11.
The specification of described arc strip 11 is identical, so that the specification of identical, each bar-shaped trough 13 of the specification of each gap 12 is also identical.
Embodiment 2
See Fig. 7 to Figure 12:
This drainage tube comprises front end and closes, the circular body 1 of rear end opening, the material of body 1 is elastic solid (Hookean body) silicone rubber, there are spaced apart four the evagination arc strips 11 of circumference the front side of body 1, a gap 12 is all had between every two adjacent arc strips 11, the length trend of string corresponding to arc strip 11 moves towards consistent with the axis of body 1, each gap 12 is all communicated with the endoporus of body 1, the ratio of the diameter of bore of body 1 and the length of described string is for 1:3(is for the purpose of clearly describing the problem, at Fig. 7, Fig. 8, in Figure 10, body 1, arc strip 11 is unactual to be illustrated according to aforementioned proportion).
When puncture or tube drawing, guid needle 2 to insert in body 1 and with body 1 before end in contact, force arc strip 11 to extend, falls, so that the cross sectional shape on front side of body 1 be circle, and a formation axially extended bar-shaped trough 13 between every two adjacent arc strips 11.
The specification of described arc strip 11 is identical, so that the specification of identical, each bar-shaped trough 13 of the specification of each gap 12 is also identical.
Above-described is only two kinds of embodiments of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.Such as: the quantity of arc strip can determine as required flexibly.