阅读说明：本技术 主动脉及其分支动脉取栓装置及取栓系统 (Aorta and branch artery thrombus taking device and thrombus taking system ) 是由 刘昌伟 狄潇 于 2019-11-08 设计创作，主要内容包括：本发明提供了一种主动脉及其分支动脉取栓装置及取栓系统,属于医疗器械领域,该主动脉及其分支动脉取栓装置包括导向管、导丝管、外鞘和收集组件；导丝管穿设在导向管中,并且导丝管的前端伸出于导向管；收集组件设置在导丝管的前端,收集组件包括套设在导丝管上的滤网套、弹性圈以及束缚线；滤网套的网底设置在导向管的外壁,滤网套的网口环设在弹性圈上；多根束缚线的一端连接弹性圈,另一端穿过导丝管引出至导丝管的外部；外鞘套设在导向管外部,并能沿导向管的长度方向移动,进而收拢或者释放收集组件；不仅可以配合取栓球囊组件取出瘤栓,而且能够有效预防在取栓过程中产生远端栓塞的风险。(The invention provides an aorta and a branch artery thrombus taking device and a thrombus taking system thereof, belonging to the field of medical instruments, wherein the aorta and branch artery thrombus taking device comprises a guide tube, a guide wire tube, an outer sheath and a collecting component; the guide wire tube is arranged in the guide tube in a penetrating way, and the front end of the guide wire tube extends out of the guide tube; the collecting assembly is arranged at the front end of the silk guide pipe and comprises a filter screen sleeve, an elastic ring and a binding line, wherein the filter screen sleeve, the elastic ring and the binding line are sleeved on the silk guide pipe; the net bottom of the filter screen sleeve is arranged on the outer wall of the guide pipe, and the net opening of the filter screen sleeve is annularly arranged on the elastic ring; one end of each of the plurality of binding lines is connected with the elastic ring, and the other end of each binding line penetrates through the wire guide pipe and is led out to the outside of the wire guide pipe; the outer sheath is sleeved outside the guide tube and can move along the length direction of the guide tube so as to furl or release the collecting component; not only can be matched with the thrombus removal balloon component to remove the tumor thrombus, but also can effectively prevent the risk of generating distal embolism in the thrombus removal process.)

1. An aorta and a branch artery thrombus taking device thereof are characterized by comprising a guide tube, a guide wire tube, an outer sheath and a collecting component;

the wire guide pipe is arranged in the guide pipe in a penetrating mode, and the front end of the wire guide pipe extends out of the guide pipe;

the collecting assembly is arranged at the front end of the thread guide pipe and comprises a filter screen sleeve, an elastic ring and a binding line, wherein the filter screen sleeve, the elastic ring and the binding line are sleeved on the thread guide pipe;

the net bottom of the filter screen sleeve is arranged on the outer wall of the guide pipe, and the net opening of the filter screen sleeve is annularly arranged on the elastic ring; one end of each of the plurality of binding lines is connected with the elastic ring, and the other end of each of the plurality of binding lines penetrates through the wire guide pipe and is led out to the outside of the wire guide pipe;

the outer sheath is sleeved outside the guide tube and can move along the length direction of the guide tube so as to furl or release the collecting assembly.

2. The aortic and branch arterial thrombus removal device as claimed in claim 1, wherein the strainer sleeve is cone-shaped when the elastic ring is in a release state.

3. The aortic and branch arterial thrombus removal device as claimed in claim 1, wherein the filter screen cover is of a membrane structure, and is provided with a plurality of through holes; or the filter screen sleeve is woven by metal wires.

4. The aortic and branch arterial thrombus removal device as claimed in claim 1, wherein the guide head is arranged on the guide wire tube, and the guide head is in a cone cylinder shape.

5. The aortic and branch arterial thrombus removal device according to claim 1, wherein a plurality of threading holes are provided on the peripheral side of the guidewire tube, and the threading holes communicate with the inside of the guidewire tube.

6. The aortic and branch arterial thrombus removal device as claimed in claim 1, wherein the surface of the elastic ring is wound with a wire that can be identified by X-ray irradiation.

7. The aortic and branch arterial thrombus removal device as claimed in any one of claims 1 to 6, wherein the tail end of the guiding tube is provided with a fixing component for fixing the tail end of the ligature.

8. The aorta and branch artery thrombectomy device of claim 7, wherein the fixing assembly comprises a branch conduit and a connector, the branch conduit is disposed on the side wall of the guiding tube and is communicated with the inside of the guiding tube, the connector is detachably connected with the branch conduit, and the connector is used for connecting the constraint line.

9. The aortic and branch arterial thrombus removal device as claimed in claim 1, wherein the tail end of the guiding tube is provided with a water injection hole for injecting liquid between the guiding tube and the outer sheath to discharge air.

10. An aortic embolectomy system, comprising an embolectomy balloon assembly, a guidewire and an embolectomy device according to any of claims 1-9;

the thrombus removal balloon component is used for dragging thrombus or tumor thrombus in a branched artery into an aorta;

the guide wire penetrates through the guide wire tube in the thrombus taking device, the thrombus taking device enters an aorta under the guidance of the guide wire, and then thrombus or tumor thrombus is collected through the filter screen sleeve.

Technical Field

The invention relates to the field of medical instruments, in particular to an aortic and branch artery thrombus taking device and a thrombus taking system.

Background

Embolic lesions of the aorta and its primary branch arteries have been difficult to treat with vascular surgery. The minimally invasive thrombus aspiration method can extract acute thrombus, but subacute and chronic thrombus cannot be treated, tumor thrombus cannot be treated, and the risk of distal embolism caused by easy falling of thrombus exists; the minimally invasive catheterization thrombolysis method can dissolve acute thrombus and partial subacute thrombus, but cannot treat tumor thrombus, and has high bleeding risk and risk of distal embolism caused by thrombus falling off.

In conclusion, the prior art is difficult to treat the tumor embolus, and the thrombus is easy to fall off during the embolus removing process, so that the risk of distal embolism is caused.

Disclosure of Invention

The invention aims to provide an aortic and branch artery thrombus taking device and a thrombus taking system, which can collect thrombus or tumor thrombus after balloon thrombus taking, and further prevent the risk of distal embolism.

In view of the above object, the present invention provides an aortic and branch artery embolectomy device, comprising: the device comprises a guide tube, a wire guide tube, an outer sheath and a collecting assembly;

the wire guide pipe is arranged in the guide pipe in a penetrating mode, and the front end of the wire guide pipe extends out of the guide pipe;

the collecting assembly is arranged at the front end of the thread guide pipe and comprises a filter screen sleeve, an elastic ring and a binding line, wherein the filter screen sleeve, the elastic ring and the binding line are sleeved on the thread guide pipe;

the net bottom of the filter screen sleeve is arranged on the outer wall of the guide pipe, and the net opening of the filter screen sleeve is annularly arranged on the elastic ring; one end of each of the plurality of binding lines is connected with the elastic ring, and the other end of each of the plurality of binding lines penetrates through the wire guide pipe and is led out to the outside of the wire guide pipe;

the outer sheath is sleeved outside the guide tube and can move along the length direction of the guide tube so as to furl or release the collecting assembly.

In the technical scheme, the outer wall is connected to the net bottom of the filter screen sleeve, the elastic ring is connected to the net port, the filter screen sleeve can collect thrombus or tumor thrombus dragged into the aorta by the thrombus taking balloon component in a release state, then the elastic ring and the filter screen sleeve are folded by utilizing the constraint line, the filter screen sleeve and the elastic ring are wrapped by the outer sheath, the aorta and a branch artery thrombus taking device are withdrawn along the guide wire, the thrombus taking process is completed, and the risk of generating distal embolism in the thrombus taking process is effectively prevented.

Furthermore, when the elastic ring is in a release state, the filter screen sleeve is in a cone hopper shape.

In the technical scheme, because the filter screen sleeve is in a cone bucket shape, thrombus or tumor embolus can be intercepted and collected, and the risk of causing distal embolism is avoided.

Furthermore, the filter screen sleeve adopts a membrane structure, and a plurality of through holes are formed in the filter screen sleeve; or the filter screen sleeve is woven by metal wires.

In the technical scheme, the through hole is used for passing blood, so that the aorta is prevented from being blocked in the process of collecting thrombus or tumor thrombus.

Furthermore, a guide head is arranged on the wire guide tube, and the guide head is in a conical cylinder shape.

In the technical scheme, the guide head is in a cone shape, so that the tissue can be conveniently broken to enter the aorta, and the thrombus removal device can smoothly reach the operation position.

Furthermore, a plurality of wire passing holes are formed in the periphery of the wire guide pipe, and the wire passing holes are communicated with the inside of the wire guide pipe.

In the technical scheme, the plurality of wire penetrating holes on the peripheral side of the wire guide pipe are utilized, the plurality of binding lines can be led out to the outside through the wire penetrating holes and the wire penetrating pipe in sequence, and then the elastic ring is controlled to be folded or released through the plurality of binding lines.

Furthermore, a metal wire which can be identified under the irradiation of X-rays is wound on the surface of the elastic ring.

In the technical scheme, the metal wire is arranged, so that a doctor can conveniently observe the position of the elastic ring in a human body under the irradiation of X-rays.

Further, a fixing component is arranged at the tail end of the guide pipe and used for fixing the tail end of the binding line.

Further, fixed subassembly includes branch pipe and connector, branch pipe sets up the lateral wall of stand pipe, and with the inside intercommunication of seal wire pipe, the connector with branch pipe can dismantle the connection, the connector is used for connecting the constraint line.

In the technical scheme, the connector is connected with the constraint line, and when the connector is fixed on the branch catheter, the elastic ring is in a release state and can be used for collecting thrombus or tumor embolus; when the connector is far away from the branch catheter, the constraint line pulls the elastic ring to be in a furled state, so that the thrombus or the tumor plug is stored.

Furthermore, the tail end of the guide pipe is provided with a water injection hole for filling liquid between the guide pipe and the sheath to discharge air, so that the influence of air on a human body in the embolectomy process is avoided.

The application provides an aorta embolectomy system, an embolectomy balloon component, a guide wire and an embolectomy device as described in any one of the above items;

the thrombus removal balloon component is used for dragging thrombus or tumor thrombus in a branched artery into an aorta;

the guide wire penetrates through the guide wire tube in the thrombus taking device, the thrombus taking device enters an aorta under the guidance of the guide wire, and then thrombus or tumor thrombus is collected through the filter screen sleeve.

The invention provides an aorta and branch artery thrombus taking device and a thrombus taking system, which have the following technical effects:

because the net bottom of the filter screen sleeve is connected with the outer wall, the net port is connected with the elastic ring, in a release state, the filter screen sleeve can collect thrombus or tumor thrombus dragged into the aorta by the thrombus taking balloon component, then the elastic ring and the filter screen sleeve are folded by utilizing the constraint line, the filter screen sleeve and the elastic ring are wrapped by the outer sheath, the aorta and the branch artery thrombus taking device are withdrawn along the guide wire, the thrombus taking process is completed, not only can the tumor thrombus be taken out by matching with the thrombus taking balloon component, but also the risk of generating distal embolism in the thrombus taking process can be effectively prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of an aortic and branch artery embolectomy device in a released state according to an embodiment of the present invention;

FIG. 2 is a schematic view of a collection assembly in a collapsed state according to an embodiment of the present invention;

FIG. 3 is a schematic view of an aortic and branch artery embolectomy device in a collapsed state according to an embodiment of the present invention;

FIG. 4 is a schematic view of a partial structure of a guidewire tube provided in accordance with an exemplary embodiment;

FIG. 5 is a schematic structural diagram of an aortic and branch artery embolectomy device according to an embodiment of the present invention;

FIG. 6 is a flowchart illustrating steps A to C of a embolectomy method according to a second embodiment of the present invention;

FIG. 7 is a flowchart illustrating steps D-E of a thrombus removal method according to a second embodiment of the present invention;

FIG. 8 is a flowchart illustrating steps F to H of an aortic and branch artery thrombus removal device with another structure according to a second embodiment of the present invention;

FIG. 9 is a flowchart of steps I to J of an aortic and branch artery thrombus removal device with another structure according to a second embodiment of the present invention.

Icon: 10-a guide tube; 11-a branch conduit; 12-a connector; 13-water injection hole; 20-a wire guide tube; 21-a guide head; 22-a threading hole; 30-outer sheath; 40-a collection assembly; 41-filter screen sleeve; 411-a through hole; 42-an elastic ring; 43-a binding line; 50-a hard guidewire; 60-thrombectomy balloon assembly.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.