Multistage reducing thrombus taking micro-supportTechnical Field
The invention relates to the technical field of medical instruments, in particular to a multistage reducing thrombus taking micro-stent.
Background
The death rate of the cerebral vascular diseases of China in 2018 is 149.49/10 ten thousand, which causes 157 ten thousand deaths. The Chinese cardiovascular health and disease report 2020 refers to 1300 thousands of people suffering from cerebral apoplexy, thrombus in the conventional thrombolysis is very easy to fall off from a thrombus remover in the recovery process and needs to be captured repeatedly, so that the pain of a patient is increased, the operation time is prolonged, the risk of remote vascular blockage is increased, and the cerebral arterial embolism aiming at small micro thrombus is limited in treatment means because no suitable micro thrombus removing bracket is used for mechanical thrombus removing except the conventional thrombolysis at present.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a multistage variable-diameter thrombus taking micro-stent, which aims to overcome the technical problems in the prior related art.
For this purpose, the invention adopts the following specific technical scheme:
The utility model provides a multistage reducing is got and is tied micro-support, includes the handle and gets the bolt support, the handle is located get the one end of bolt support, get the one end of bolt support with be provided with the conveyer pipe between the handle, the middle part of conveyer pipe is provided with alternates to the inside traction wire of handle, it includes guide head and net rack to get the bolt support, the one end of traction wire alternates the middle part of net rack with the guide head is connected, the front end of guide head is provided with the shutoff umbrella, the upper end middle part of handle is provided with the sliding tray, the upper end middle part of handle be provided with the push button that traction wire cooperatees to be connected, the middle part of push button is provided with the standing groove, the inside of standing groove is provided with the elastic expansion link, the upper end of elastic expansion link is provided with the button, the one end of button is provided with the extension piece, the middle part of extension piece be provided with push button the rotation axostylus axostyle that is connected.
Further, one end of the handle is provided with an anti-slip groove, the middle part of the handle is of an arc-shaped structure, and anti-slip grooves are formed in two ends of the handle, which are located on the arc-shaped structure.
Further, the lower extreme of handle is provided with anticreep telescopic band, the middle part of anticreep telescopic band is provided with the shrink regulating part.
Further, mounting holes are formed in two sides of the lower end of the handle, and buckles connected with the mounting holes are arranged at two ends of the anti-falling telescopic strap.
Furthermore, the two sides of the handle are provided with graduated scales, and the graduated scales are provided with a plurality of graduated numbers.
Further, a first developing ring and a second developing ring are respectively arranged at two ends of the grid rack, the first developing ring is located between the guide head and the grid rack, and the second developing ring is located between the conveying pipe and the grid rack.
Further, a sliding plate is arranged between the lower end of the button and the elastic telescopic rod, and sliding blocks on two sides of two ends of the sliding plate are matched and connected with sliding grooves on the inner wall of the push button.
Further, the lower extreme of stopper is provided with the spacing pad of rubber, the lower extreme of the spacing pad of rubber is provided with a plurality of skewed tooth, the upper end middle part of handle be provided with skewed tooth matched with chute.
The invention has the beneficial effects that the thrombus is firstly taken by inserting the catheter into the blood vessel and the thrombus taking bracket is controlled by the handle to be telescopic, the handle regulates and controls the size of the thrombus taking bracket and carries out development tracking and special braiding technology, the thrombus is better and faster captured, the operability of the thrombus taking bracket is improved by matching with the push button and the push button, the thrombus is taken out in the retracting process more safely, and the practicability is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a multi-stage variable diameter thrombus removal micro-stent according to an embodiment of the present invention;
FIG. 2 is a top view of a handle of a multi-stage variable diameter thrombolysis micro stent according to an embodiment of the invention;
Fig. 3 is a schematic diagram of a push-torsion structure of a multi-stage variable diameter thrombus removal micro-stent according to an embodiment of the present invention;
Fig. 4 is a schematic diagram of a delivery state of a multiple-stage variable diameter thrombus removal micro-stent according to an embodiment of the present invention;
Fig. 5 is a schematic diagram II of a conveying state of a thrombus removing stent of a multi-stage variable diameter thrombus removing micro stent according to an embodiment of the present invention;
fig. 6 is a schematic diagram III of a delivery state of a multiple-stage variable diameter thrombus removal micro-stent according to an embodiment of the present invention;
Fig. 7 is a schematic diagram IV of a delivery state of a multiple-stage variable diameter thrombus removal micro-stent according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a plugging umbrella with a multi-stage variable diameter thrombus removal micro-stent according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a plugging umbrella with a multi-stage variable diameter thrombus removal micro-stent according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a plugging umbrella with a multi-stage variable-diameter thrombus removal micro-stent according to an embodiment of the invention.
In the figure:
1. A handle; 2, a bolt taking bracket, 3, a conveying pipe, 4, a traction wire, 5, a guide head, 6, a grid net rack, 7, a push button, 8, a placing groove, 9, an elastic telescopic rod, 10, a button, 11, an extension block, 12, a rotating shaft rod, 13, a limiting block, 14, an anti-falling groove, 15, an anti-slip groove, 16, an anti-falling telescopic belt, 17, a shrinkage adjusting piece, 18, a graduated scale, 19, a first developing ring, 20, a second developing ring, 21, a sliding plate, 22, a rubber limiting pad, 23, oblique teeth, 24, a chute, 25, a sliding groove, 26, a pushing guide pipe, 27, a sliding sleeve block, 28 and a self-expanding bracket.
Detailed Description
For the purpose of further illustrating the various embodiments, the present invention provides the accompanying drawings, which are a part of the disclosure of the present invention, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present invention, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to an embodiment of the invention, a multi-stage reducing thrombus removal micro-stent is provided.
Embodiment one:
As shown in fig. 1-8, the multistage reducing thrombus taking micro-support according to the embodiment of the invention comprises a handle 1 and a thrombus taking support 2, wherein the handle 1 is positioned at one end of the thrombus taking support 2, a conveying pipe 3 is arranged between one end of the thrombus taking support 2 and the handle 1, a traction wire 4 penetrating into the handle 1 is arranged at the middle of the conveying pipe 3, the thrombus taking support 2 comprises a guide head 5 and a grid net rack 6, one end of the traction wire 4 penetrates through the middle of the grid net rack 6 and is connected with the guide head 5, a plugging umbrella is arranged at the front end of the guide head 5, a sliding groove 25 is arranged at the middle of the upper end of the handle 1, a push button 7 which is connected with the traction wire 4 in a matched mode is arranged at the middle of the upper end of the handle 1, a placing groove 8 is arranged at the middle of the push button 7, an elastic telescopic rod 9 is arranged in the placing groove 8, a button 10 is arranged at the upper end of the elastic telescopic rod 9, an extension block 11 is arranged at one end of the button 10, and a limiting block 11 is arranged at the middle of the extension block 11 and is connected with one end of the push button 11.
Embodiment two:
As shown in fig. 1-10, one end of the handle 1 is provided with an anti-slip groove 14, the middle part of the handle 1 is of an arc structure, and two ends of the handle 1, which are positioned on the arc structure, are provided with anti-slip grooves 15. The lower extreme of handle 1 is provided with anticreep telescopic band 16, the middle part of anticreep telescopic band 16 is provided with shrink regulating part 17. Mounting holes are formed in two sides of the lower end of the handle 1, and buckles connected with the mounting holes are arranged at two ends of the anti-falling telescopic strap 16. Both sides of the handle 1 are provided with graduated scales 18, and the graduated scales 18 are provided with a plurality of graduated numbers.
As shown in fig. 1-10, two ends of the grid frame 6 are respectively provided with a first developing ring 19 and a second developing ring 20, the first developing ring 19 is located between the guide head 5 and the grid frame 6, and the second developing ring 20 is located between the conveying pipe 3 and the grid frame 6. A sliding plate 21 is arranged between the lower end of the button 10 and the elastic telescopic rod 9, and sliding blocks on two sides of two ends of the sliding plate 21 are matched and connected with sliding grooves on the inner wall of the push button 7. The lower extreme of stopper 13 is provided with rubber spacing pad 22, the lower extreme of rubber spacing pad 22 is provided with a plurality of skewed tooth 23, the upper end middle part of handle 1 be provided with skewed slot 24 that skewed tooth 23 cooperatees.
In order to facilitate understanding of the above technical solutions of the present invention, the following describes in detail the working principle or operation manner of the present invention in the actual process.
In practical application, the grid net frame 6 has the smallest thrombus taking diameter of 0.5-2mm, so that the grid gap of the grid net frame 6 is gradually reduced from the near end to the far end, the grid design of the loose and dense matching ensures that the thrombus taking support 2 can be quickly embedded into a blood vessel, the combination and catching capacity of the thrombus taking support 2 and thrombus are increased, the density of the grid net frame 6 on the thrombus taking support 2 is matched, small thrombus emboli can be effectively prevented from falling off the support, the damage to the blood vessel wall when the thrombus taking support 2 passes through the blood vessel is reduced, and the flexibility of the thrombus taking support is increased by arranging the soft guide head 5;
The plugging umbrella comprises a support pushing catheter 26, a plurality of self-expanding supports 28 which are uniformly distributed are arranged around the sliding sleeve blocks 27, the self-expanding supports are opened or contracted by pulling the sliding sleeve blocks 27 through the pulling wires 4, and the self-expanding supports 28 are sleeved with the air bags matched with the self-expanding supports. The stent implantation in carotid stenosis vascular endothelial molding can form embolic protection through the self-expanding stent, the operation is simple and convenient, the balloon is expanded on the self-expanding stent to provide complete and reliable occlusion of carotid artery, and the catheter operation in the subsequent steps is simplified.
Through the cooperation of push button 7 and traction wire 4, the maneuverability of bolt taking support 2 has been improved, and under scale 18, the position between the accurate control, simultaneously, when using, button 10 is along with push button 7's in the use downwards, button 10 passes through slide 21 extrusion elastic telescopic link 9, make the stopper 13 of one end upwards move under the effect of pivot axostylus axostyle 12, after push button 7 stops moving, loose button 10, make the rubber spacing pad 22 and chute 24 with stopper 13 and bottom under elastic telescopic link 9's effect be connected, thereby reach spacing effect, adjust the diameter of bolt taking support 2 through push button 7, button 10 locks push button 7 and fixes the diameter of bolt taking support 2, prevent that the error from appearing, safer in retrieving process takes out the thrombus.
In summary, by means of the technical scheme, the thrombus taking support 2 is inserted into the blood vessel, the thrombus taking support 2 is taken out of the blood vessel, the thrombus taking support 2 can be controlled to stretch and retract through the handle 1, the handle 1 regulates and controls the size of the thrombus taking support 2, development tracking and special weaving technologies are carried out, the thrombus is better and faster captured, the pushing button 7 and the button 10 are matched, operability of the thrombus taking support is improved, the thrombus is taken out in the retracting process safely, and practicability is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.