Guide gip filterTechnical field
The present invention relates to medical apparatus field, in particular to a kind of guide gip filter.
Background technology
Blood thrombolytic is the operation that Hospitals at Present is often carried out, and the thrombosis being dissolved during thrombolytic often occurs backFlow thus affect being normally carried out of operation.
It is susceptible to backflow impact operation for the thrombosis being dissolved in thrombolytic operation process in prior art normally enterThe technical problem of row, the most not yet proposes effective solution.
Summary of the invention
Embodiments provide a kind of guide gip filter, at least to solve in prior art quilt in thrombolytic operation processThe thrombosis dissolved is susceptible to the technical problem that backflow impact operation is normally carried out.
According to embodiments of the present invention, it is provided that a kind of guide gip filter, including catheter；Trocar sheath, wherein, described overcoatPipe includes: first sleeve and the second sleeve pipe, by many flexible filtrations between described first sleeve and described second sleeve pipeBar connects, and described first sleeve fixed cover is located on described catheter, and described second sleeve pipe is set in described drain slidablyGuan Shang, described second sleeve pipe slides into the first predeterminated position towards described first sleeve and many described filtering rods can be promoted to be arcShape, described second sleeve pipe slides into the second predeterminated position away from described first sleeve can pull many described filtering rods linearlyShape.
Further, described filtering rod is elastic filtering rod.
Further, described guide gip filter also includes: stopping means, is arranged on described catheter, for by described theTwo sleeve pipes are limited in described first predeterminated position.
Further, described stopping means includes: multiple movable buckles, and multiple described movable buckles are along described catheterLong to layout, multiple described movable buckles for being limited in multiple the first different predeterminated position by described second sleeve pipe.
Further, the front end of described catheter has delivery hole.
Guide gip filter according to embodiments of the present invention, sheathed trocar sheath on catheter, trocar sheath includes: first sleeve andSecond sleeve pipe, is connected by many flexible filtering rods between first sleeve and the second sleeve pipe, and first sleeve fixed cover is located atOn catheter, the second sleeve pipe is set on catheter slidably, in thrombolytic operation process, by the second sleeve pipe towards first setPipe slides and many filtering rods can strut the arc making it in bending, and the thrombosis being dissolved can be hindered by many filtering rodsGear, anti-tampon refluxes, and solves the thrombosis being dissolved in thrombolytic operation process in prior art and is susceptible to backflowThe technical problem that impact operation is normally carried out.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, thisBright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the first use state of the most optional a kind of guide gip filter；
Fig. 2 is the second use status architecture schematic diagram of the most optional a kind of guide gip filter.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
1, catheter；11, delivery hole；2, trocar sheath；21, first sleeve；22, the second sleeve pipe；23, filtering rod；3, spacingDevice；31, movable buckle.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present inventionAccompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is onlyThe embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill peopleThe every other embodiment that member is obtained under not making creative work premise, all should belong to the model of present invention protectionEnclose.
Guide gip filter according to embodiments of the present invention, as depicted in figs. 1 and 2, including: catheter 1 and trocar sheath 2；Wherein,Trocar sheath 2 includes: first sleeve 21 and the second sleeve pipe 22, flexible by many between first sleeve 21 and the second sleeve pipe 22Filtering rod 23 connects, and first sleeve 21 fixed cover is located on catheter 1, and the second sleeve pipe 22 is set on catheter 1 slidably,Second sleeve pipe 22 slides into the first predeterminated position towards first sleeve 21 and many filtering rods 23 can be promoted curved, the second sleeve pipe22 slide into the second predeterminated position away from first sleeve 21 can pull many filtering rods 23 linear.
Guide gip filter according to embodiments of the present invention, sheathed trocar sheath 2 on catheter 1, trocar sheath 2 includes: first setPipe 21 and the second sleeve pipe 22, connected by many flexible filtering rods 23 between first sleeve 21 and the second sleeve pipe 22, firstSleeve pipe 21 fixed cover is located on catheter 1, and the second sleeve pipe 22 is set on catheter 1 slidably, in thrombolytic operation process,Second sleeve pipe 22 is slided towards first sleeve 21 many filtering rods 23 can be strutted the arc making it in bending, be dissolvedThrombosis can be stopped by many filtering rods 23, anti-tampon refluxes, and solves in prior art at thrombolytic operation processIn the thrombosis that is dissolved be susceptible to the backflow impact technical problem that is normally carried out of operation.
When being embodied as, filtering rod 23 is elastic filtering rod, and after operation, filtering rod 23 can be certainly under the effect of elastic forceDynamic reinstatement such that it is able to make guide gip filter extract out from human vas.
Owing to thrombolytic process time is longer, after promoting the second sleeve pipe 22 to be strutted by many filtering rods 23, need to overcome filtrationThe elastic force of bar 23 is fixed, in order to use for a long time, therefore, as in figure 2 it is shown, be also arranged with stopping means on catheter 13, stopping means 3 is positioned at the rear end of the second sleeve pipe 22, stopping means 3 include multiple can extending radially out or returning along catheter 1Movable buckle 31, alternatively, movable buckle 31 is provided with three, when many filtering rods 23 are strutted necessarily by the second sleeve pipe 22During degree, the concrete size that struts determines according to the blood vessel thickness of human body.
What filtering rod 23 was different struts the different fixed positions of corresponding second sleeve pipe 22 of size, arranges three movable buckles 31Second sleeve pipe 22 can be limited to three different positions, so that filtering rod 23 has three kinds different to strut diameter.According toNeeding to be pushed to the second sleeve pipe 22 corresponding position, the second sleeve pipe 22 can be limited by corresponding movable buckle 31, madeFilter bar 23 can keep softened state, it is simple to the carrying out of operation.
In order to make catheter 1 to be sprayed to equably in thrombosis by thrombolytic solution, in the front end of catheter 1, there is drainHole 11, delivery hole 11 is arranged on the front end of catheter 1, thus thrombolytic solution is had certain impulse force and is sprayed to blood in thrombosisBolt dissolves.
Time specifically used, catheter 1 is stretched in blood vessel, and make delivery hole 11 be positioned in thrombosis, as in figure 2 it is shown, subsequentlyPromoting forward the second sleeve pipe 22 to be propped up by filtering rod 23, many filtering rods 23 after propping up are in bird-caging, it is possible to blood vesselFit, as in figure 2 it is shown, make filtering rod 23 keep strutting shape by the stopping means 3 of rear end by fixing for the second sleeve pipe 22 subsequentlyState, thrombolytic solution is injected by catheter 1 rear end, and the thrombolytic solution of injection is sprayed thromboembolism, the blood of dissolving by delivery hole 11Bolt can posteriorly flow, and many softened filtering rods 23 filter and intercept, and anti-tampon posteriorly refluxes.
Below it is only the preferred embodiment of the present invention, it is noted that those skilled in the art are comeSaying, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded asProtection scope of the present invention.