Left auricle plugging deviceTechnical Field
The invention relates to the technical field of left auricle plugging, in particular to a left auricle plugging device.
Background
Atrial fibrillation is the most common clinical sustained arrhythmia, and can lead to the local thrombosis of the left auricle to fall off, thereby causing cerebral apoplexy and peripheral arterial embolism, and the left auricle plugging technology achieves the aim of preventing cerebral apoplexy and peripheral arterial embolism by closing the cavity of the left auricle. Because of extreme individuation difference, the links of systematic analysis of the shape of the left auricle, selection of the specification of the plugging instrument, the release position and depth of the plugging device, verification after release and the like are particularly important, the requirements on the experience of operators, operation technology, clinical specialities of instrument manufacturers are very high, the clinical level is classified as IV-level operation, namely the highest level, the operation can be carried out only in a substantial clinical center with quite abundant experience, the left auricle plugging technology which is most popular in the market at present is to plug the left auricle by adopting an alloy skeleton type plugging device, and the plugging purpose is achieved by placing plugging devices with different types, sizes, shapes and the like in the left auricle.
The implementation of the left atrial appendage occlusion technique mainly comprises the following steps of firstly, atrial septum puncture, secondly, delivering a delivery sheath to a left atrium through a guide wire, removing the guide wire and an inner core, performing left atrial appendage radiography, thirdly, evaluating whether left atrial appendage occlusion can be performed according to the left atrial appendage shape, size, depth and the like displayed by radiography, selecting an occlusion device with proper specification in vitro, fourthly, delivering the occlusion device to a proper position of the left atrial appendage, primarily releasing the occlusion device, and fifthly, verifying the position, anchoring, occlusion and compression conditions of the occlusion device, finally releasing the occlusion device if all aspects are satisfied, and recovering the occlusion device if not satisfied, then adjusting again, releasing or discarding the occlusion, wherein operation failure is caused by the fact that part of patients are too special in atrial appendage shape, too large, too shallow and open angle 'churn', or the risk of surgical complications such as atrial appendage injury, pericardium occlusion and the like is required to be increased remarkably due to repeated recovery-adjustment-re-release of primary instrument release, or the risk of delayer off-chest occlusion is required to be taken out after operation.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a left auricle plugging device which solves the problems in the background.
The invention provides a left atrial appendage occlusion device, which comprises a delivery sheath and a composite sheath, wherein one end of the composite sheath penetrates through the delivery sheath and extends to the outside of the delivery sheath;
the inside of compound sheath is provided with inflation line, gel injection line and blood back-pumping pipeline respectively, the one end that compound sheath passed the delivery sheath is connected with shutoff gasbag, shutoff gasbag is linked together with inflation line, the one end of gel injection line with the one end of blood back-pumping pipeline all extends to the outside of compound sheath.
Preferably, one end of the inflation pipeline far away from the plugging air bag extends to the outside of the composite sheath and is provided with an inflation valve.
Preferably, one end of the gel injection pipeline far away from the plugging air bag extends to the outside of the composite sheath and is provided with an injection valve.
Preferably, one end of the blood back-pumping pipeline far away from the plugging air bag extends to the outside of the composite sheath and is provided with a blood back-pumping valve.
Preferably, a tail pipe is arranged at one end of the blood back-pumping pipeline extending to the outside of the composite sheath, and a plurality of through holes are formed in the surface of the tail pipe.
Preferably, a connecting part is arranged at one end of the delivery sheath, an irrigation pipe is arranged on the surface of the connecting part, and an irrigation valve is arranged on the surface of the irrigation pipe.
Preferably, the surface of the connecting part is rotationally connected with a rotary cap, the surface of the rotary cap is provided with an internal thread, one end of the composite sheath is provided with an external thread, and the external thread is meshed with the internal thread.
Preferably, the surface of the connecting part is provided with an annular limiting groove, the inner wall of the rotary cap is provided with an annular limiting part, and the surface of the annular limiting part is connected with the inner wall of the annular limiting groove.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, the left auricle opening is temporarily closed by the sealing air bag through arranging the delivery sheath, the composite sheath, the inflation pipeline, the gel injection pipeline, the blood back-pumping pipeline and the sealing air bag, the blood in the left auricle is pumped out by the blood back-pumping pipeline, the sealing gel is circularly injected into the left auricle cavity through the gel injection pipeline, the blood in the left auricle is replaced by the sealing gel, and then the sealing gel is completely and stably frozen to fill the left auricle, so that the left auricle sealing is realized, the left auricle can be suitable for left auricles in different forms, sizes and angles, and the risks of left auricle injury and pericardium filling caused by possible repeated recovery and release in the operation process of the traditional sealing instrument are avoided.
2. According to the invention, the pig tail pipe and the through hole are arranged, so that blood in the left auricle can be conveniently and rapidly extracted.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the present invention at the location of the connection and the swivel cap;
FIG. 3 is a schematic view of the structure of the annular limiting part of the present invention;
FIG. 4 is a schematic side sectional view of the present invention in a charge line position;
FIG. 5 is a schematic diagram of the inflated state structure of the blocking air bag.
The device comprises a delivery sheath, a composite sheath, an inflation pipeline, a gel injection pipeline, a blood back-pumping pipeline, a blocking balloon, a 7 inflation valve, a 8 injection valve, a 9 blood back-pumping valve, a 10 pig tail pipe, a 11 through hole, a 12 connecting part, a 13 flushing pipe, a 14 flushing valve, a 15 rotating cap, a 16 internal thread, a 17 external thread, a 18 annular limiting groove and a 19 annular limiting part.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a left atrial appendage occlusion device comprises a delivery sheath 1 and a composite sheath 2, wherein one end of the composite sheath 2 penetrates through the delivery sheath 1 and extends to the outside of the delivery sheath 1, an inflation pipeline 3, a gel injection pipeline 4 and a blood withdrawal pipeline 5 are respectively arranged in the composite sheath 2, one end of the composite sheath 2 penetrating through the delivery sheath 1 is connected with an occlusion balloon 6, the occlusion balloon 6 is communicated with the inflation pipeline 3, one end of the gel injection pipeline 4 and one end of the blood withdrawal pipeline 5 extend to the outside of the composite sheath 2, the occlusion balloon 6 temporarily seals an opening of a left atrial appendage, after the left atrial appendage is sealed, gel is injected inwards to increase the whole volume or pressure, so that blood in the left atrial appendage is required to be withdrawn, the blood in the left atrial appendage is replaced by gel, the blood in the left atrial appendage is withdrawn by the blood withdrawal pipeline 5, the occlusion gel is circularly injected into the left atrial appendage cavity by the gel injection pipeline 4, the left atrial appendage is completely stabilized by the occlusion gel, the left atrial appendage is completely frozen, the left atrial appendage can be sealed, the left atrial appendage can be prevented from being damaged by the left atrial appendage, the left atrial appendage can be repeatedly damaged by the conventional occlusion device, and the left atrial appendage can be prevented from being repeatedly damaged by the left atrial appendage, and the left atrial appendage.
The end of the inflation pipeline 3 far away from the plugging balloon 6 extends to the outside of the composite sheath 2 and is provided with an inflation valve 7, the end of the gel injection pipeline 4 far away from the plugging balloon 6 extends to the outside of the composite sheath 2 and is provided with an injection valve 8, and the end of the blood withdrawal pipeline 5 far away from the plugging balloon 6 extends to the outside of the composite sheath 2 and is provided with a blood withdrawal valve 9.
One end of the blood back-pumping pipeline 5 extending to the outside of the composite sheath 2 is provided with a tail pipe 10, and the surface of the tail pipe 10 is provided with a plurality of through holes 11, so that blood in the left auricle can be conveniently and rapidly pumped out.
One end of the delivery sheath 1 is provided with a connection portion 12, the surface of the connection portion 12 is provided with an irrigation tube 13, and the surface of the irrigation tube 13 is provided with an irrigation valve 14.
The surface of the connecting part 12 is rotatably connected with a rotary cap 15, the surface of the rotary cap 15 is provided with an internal thread 16, one end of the composite sheath 2 is provided with an external thread 17, and the external thread 17 is meshed with the internal thread 16.
An annular limiting groove 18 is formed in the surface of the connecting portion 12, an annular limiting portion 19 is arranged on the inner wall of the rotary cap 15, and the surface of the annular limiting portion 19 is connected with the inner wall of the annular limiting groove 18.
During operation, firstly, performing atrial septum puncture; the method comprises the steps of delivering a delivery sheath 1 to a left atrium through a guide wire, removing the guide wire and an inner core, performing left atrial radiography, delivering the delivery sheath 1 to a position of an opening of the left auricle through the delivery sheath 2, inflating a blocking balloon 6 through an inflation pipeline 3 to enable the blocking balloon 6 to block the opening of the left auricle, enabling a gel injection pipeline 4 to enter the deep part of the left auricle, injecting contrast agent into the gel pipeline, confirming that sealing is sufficient, retracting blood in the left auricle through a blood retracting pipeline 5 while injecting gel, retracting the pipeline until the composite sheath 2 is arranged in the injection process, waiting for gel solidification, loosening the blocking balloon, retracting the delivery sheath 1, completing operation, temporarily sealing the opening of the left auricle by the blocking balloon, enabling the whole volume to be increased or the pressure to be increased by injecting gel inwards after the left auricle is sealed, therefore, replacing blood in the left auricle with gel, enabling the blood in the left auricle to be extracted through the blood retracting pipeline 4, circularly injecting the blocking gel into the left auricle cavity, replacing the left auricle with gel, and then enabling the left auricle to be completely suitable for sealing the left auricle, and preventing the left auricle from being damaged in a large-shaped and difficult operation, and being repeatedly used in a sealing mode.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.