CN210228398U - Aortic stent vascular system with balloon at top end - Google Patents
Aortic stent vascular system with balloon at top end Download PDFInfo
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- CN210228398U CN210228398U CN201920155077.4U CN201920155077U CN210228398U CN 210228398 U CN210228398 U CN 210228398U CN 201920155077 U CN201920155077 U CN 201920155077U CN 210228398 U CN210228398 U CN 210228398U
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Abstract
The utility model discloses an aortic stent vascular system with a balloon at the top end, which comprises a balloon component and a stent conveying component; the balloon assembly comprises an expandable balloon, a balloon catheter and a balloon expansion device; the balloon catheter is of a hollow structure, one end of the balloon catheter is connected with the balloon, and the other end of the balloon catheter is connected with the balloon expansion device; the bracket conveying component is a push type conveying device or a pull type conveying device; the balloon assembly is disposed through the stent delivery assembly. The invention can avoid the past 20 ℃ deep low temperature process, and the extracorporeal circulation temperature can be controlled at 28 ℃. The technology has important significance for blood protection, spinal cord protection and blood supply of lower body organs.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an aortic stent vascular system with a balloon at the top end.
Background
Aortic disease is a serious life-threatening disease that can even produce great cardiac vascular emergencies with extremely high mortality rates. In recent years, aortic full-arch replacement, trunk stent surgery, has been performed in a number of cardiovascular centers. At present, the steps of deep hypothermia and cycle stopping in the operation process are unavoidable, and the time is 20-30 minutes, so that the descending aorta stent is placed and the distal end blood vessel is anastomosed. However, long-term hypothermia and circulatory arrest have adverse effects on the blood, spinal cord and lower body organs of a patient, and therefore, there is a great need in the art for a device and a corresponding method of operation that can prevent reflux of distal blood to the operative field during surgery and minimize or avoid adverse effects of hypothermia circulatory arrest.
Disclosure of Invention
The invention aims to provide an aortic stent vascular system with a balloon at the top, which can prevent blood from flowing back to the operative field, reduce the circulation stopping time and improve the deep low temperature.
In one aspect of the invention, an aortic stent vasculature with a balloon at the tip is provided, comprising a balloon assembly and a stent delivery assembly;
the balloon assembly comprises an expandable balloon, a balloon catheter, a balloon expansion device; the balloon catheter is of a hollow structure, one end of the balloon catheter is connected with the expandable balloon, and the other end of the balloon catheter is connected with the balloon expansion device;
the bracket conveying assembly is a pushing type conveying device or a pull-wire type conveying device;
the balloon assembly is disposed through the stent delivery assembly.
The aortic stent vascular system with the saccule at the top end is characterized in that the delivery assembly is a push type delivery device;
the delivery assembly comprises a sleeve and a pushing tube;
the sleeve is provided with a push pipe through hole, and the push pipe can slide in the push pipe through hole; the front end of the sleeve is also provided with a bracket accommodating groove; the bracket accommodating groove can accommodate the rear end of the bracket after being folded, so that the bracket is kept in a folded state before reaching the position where the bracket needs to be released.
The push pipe is provided with a balloon catheter through hole, and the balloon catheter can slide in the balloon catheter through hole.
The aortic stent vascular system with the saccule at the top end is characterized in that the conveying component is a pull-wire type conveying device;
the conveying assembly comprises a sleeve, a fixing wire and a fixing line; the balloon catheter is provided with a fixed wire accommodating groove, and the fixed wire can slide in the fixed wire accommodating groove; the stent is bundled into a bundle by a fixing wire, and the fixing wire is intertwined with a fixing wire passing through the fixing wire. In particular, the fixation wire may be a surgical wire. When the fixing wire is wound with the bracket which is contracted through the operation wire, the bracket keeps the contracted state, and the winding mode of the operation wire can lead the fixing wire to be released by bouncing after being pulled out. Specifically, the rear end of the fixing wire is further provided with a fixing wire pull ring, so that the fixing wire can be pulled out conveniently.
The balloon-tipped aortic stent vasculature as described above, wherein the expandable balloon has a diameter at its widest point when fully expanded that is less than or equal to the inner diameter of the stent after it has been fully released. Specifically, the expandable balloon, when fully expanded, may block the blood flow of the aorta, preventing blood from entering the surgical field.
The aortic stent vascular system with the balloon at the top end is characterized in that a delivery head is further arranged at the front end of the balloon. The delivery head can reduce the forward pushing resistance of the blood vessel system of the aortic stent with the saccule at the top end, and is convenient for guiding the system into the aorta.
The aortic stent vascular system with the balloon at the top end is characterized in that the stent is a self-expanding covered stent.
Advantageous effects
The invention discloses an aortic stent vascular system with a balloon at the top end and a using method thereof, wherein the vascular stent system comprises a balloon component and a stent conveying component; the balloon assembly comprises an expandable balloon, a balloon catheter and a balloon expansion device; the balloon catheter is of a hollow structure, one end of the balloon catheter is connected with the expandable balloon, the other end of the balloon catheter is connected with the balloon expansion device, and the balloon can be pressurized and expanded through the balloon expansion device. The saccule is expanded before the stent is released, the expanded saccule can temporarily block the blood vessel, the backflow of the far-end blood to the operation field is prevented, a good operation field convenient for operation can be provided for a doctor, the blood perfusion of the lower half body can be carried out during the period, and the circulation stopping time is shortened to 2-3 minutes. On the basis, the traditional 20 ℃ deep low temperature process can be avoided, and the extracorporeal circulation temperature can be controlled at 28 ℃. The scheme of the application greatly shortens the circulation stopping time, improves the extracorporeal circulation temperature, and has important significance on blood protection, spinal cord protection and blood supply of lower body organs.
Drawings
FIG. 1 is a front view of an aortic stent vasculature with a balloon at the tip of the stent of the present invention (the delivery assembly is a pusher-type delivery device);
FIG. 2 is an isometric view of an aortic stent vasculature with a balloon at the tip of the invention (the delivery assembly is a pusher delivery device);
FIG. 3 is a front view of the aortic stent vasculature with a balloon at the tip of the present invention (the delivery assembly is a pull-wire delivery device);
FIG. 4 is an isometric view of a balloon-tipped aortic stent vasculature of the present invention (with the delivery assembly being a pull-wire delivery device);
FIG. 5 is an enlarged schematic view of the delivery head and expandable balloon of the balloon-tipped aortic stent vasculature of the present invention;
FIG. 6 is an enlarged partial view of a balloon catheter of the aortic stent vasculature with a balloon at the tip of the invention (the delivery assembly is a pull-wire delivery device);
FIG. 7 is a cross-sectional view of a balloon-tipped aortic stent vasculature of the present invention (the delivery assembly is a pusher delivery device);
fig. 8 is a view of the use of the aortic stent vasculature with balloon on the tip (balloon fully expanded) of the present invention.
The reference numbers are as follows:
the balloon dilator comprises an expandable balloon 1, a balloon catheter 2, a fixing wire accommodating groove 21, a balloon expansion device 3, a sleeve 4, a stent accommodating groove 41, a delivery head 5, a pushing tube 6, a fixing wire 7, an operation line 8 and a stent 9.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.
As used herein, the terms "anterior," "anterior," and "anterior" refer to the end of the body that is distal to the heart during use, and the terms "posterior," "posterior," and "posterior" refer to the end of the body that is proximal to the heart during use.
Example 1
Referring to fig. 1, 2, 5 and 7, the present embodiment provides a balloon-tipped aortic stent vasculature comprising a balloon assembly and a stent delivery assembly;
the balloon component comprises an expandable balloon 1, a balloon catheter 2 and a balloon expansion device 3; the balloon catheter 2 is of a hollow structure, one end of the balloon catheter is connected with the expandable balloon 1, and the other end of the balloon catheter is connected with the balloon expansion device 3; the bracket conveying component is a push type conveying device; the balloon assembly is arranged through the stent delivery assembly; the conveying component is a pushing conveying device and specifically comprises a sleeve 4 and a pushing pipe 6;
the sleeve 4 is provided with a push pipe through hole, and the push pipe 6 can slide in the push pipe through hole; the front end of the sleeve 4 is also provided with a bracket accommodating groove 41; the rack receiving groove 41 receives the rear end of the rack 9 after the rack is retracted, and the rack is placed to a depth that allows the rack 9 to be retracted until the position where the rack 9 is to be released.
The push pipe 6 is provided with a balloon catheter through hole, and the balloon catheter 2 can slide in the balloon catheter through hole.
The diameter of the widest part of the expandable balloon 1 in the fully expanded condition is less than or equal to the inner diameter of the stent 9 after it has been fully released. In particular, the expandable balloon 1, when fully expanded, blocks the blood flow of the aorta, avoiding blood from entering the operative field. The expandable balloon 1 can pass smoothly from the inside of the completely released stent without being expanded.
Preferably, the front end of the expandable balloon 1 in this embodiment is further provided with a delivery head 5. The delivery head 5 can reduce the resistance of the aortic stent vascular system with a balloon at the top end to forward propulsion, and is convenient for guiding the system of the application into the aorta.
Preferably, the stent 9 in this embodiment is a self-expanding stent graft. Still preferably, the stent 9 in this embodiment is a self-expanding full-stent-graft.
The embodiment also provides a use method of the aortic stent vascular system with the balloon at the top end, wherein the delivery assembly is a push type delivery device, and the method comprises the following steps:
(1) descending aorta vessel incision;
(2) delivering the stent 9 to a part to be released by delivering the stent into an aortic stent vascular system with a balloon at the top end from the incision;
(3) operating the balloon expansion device 3 to increase pressure to the expandable balloon 1 through the balloon catheter 2 to inflate the balloon;
(4) the sleeve 4 is held, the pushing pipe 6 is pushed forwards at the same time, and the stent 9 expands and is released; the blood flow of the aorta (as shown in fig. 8) is blocked by the expanded balloon 1, so that the operation field is clear when a doctor fixes and sews the released stent, and the precise operation is convenient.
(5) The balloon expansion device 3 is operated to decompress the expandable balloon 1, and the balloon catheter 2, the push tube 6 and the sleeve 4 are pulled backwards to take out the aortic stent vascular system with the balloon at the top end.
Example 2
Referring to fig. 3-7, the present embodiment provides a balloon-tipped aortic stent vasculature comprising a balloon assembly and a stent delivery assembly;
the balloon component comprises an expandable balloon 1, a balloon catheter 2 and a balloon expansion device 3; the balloon catheter 2 is of a hollow structure, one end of the balloon catheter is connected with the expandable balloon 1, and the other end of the balloon catheter is connected with the balloon expansion device 3;
the bracket conveying component is a stay wire type conveying device;
in this embodiment, the delivery assembly is a pull-wire type delivery device, and the delivery assembly includes a cannula 4, a fixing wire 7 and a surgical wire 8;
the front end of the sleeve 4 is also provided with a bracket accommodating groove 41; the rack receiving groove 41 can receive the rear end of the rack 9 after being folded, the rack is placed at a depth that the rack can be kept in a folded state before the position of the rack 9 needing to be released, and the rack can automatically bulge out of the rack receiving groove 41 when being unfolded.
The balloon catheter 2 is provided with a fixed wire accommodating groove 21, and the fixed wire 7 can slide in the fixed wire accommodating groove 7; the stent 9 is bundled by a surgical thread 8, and the surgical thread 8 is intertwined with the fixing wire 7 passing therethrough.
The diameter of the widest part of the expandable balloon 1 in the fully expanded condition is less than or equal to the inner diameter of the stent 9 after it has been fully released. In particular, the expandable balloon 1, when fully expanded, blocks the blood flow of the aorta, avoiding blood from entering the operative field. The expandable balloon 1 can pass smoothly from inside the fully released stent 9 without being expanded.
Preferably, the expandable balloon 1 of the present embodiment is further provided with a delivery head 5 at its forward end. The delivery head 5 can reduce the resistance of the aortic stent vascular system with a balloon at the top end to forward propulsion, and is convenient for guiding the system of the application into the aorta.
Preferably, the stent 9 in this embodiment is a self-expanding stent graft. Still preferably, the stent 9 in this embodiment is a self-expanding full-stent-graft.
The embodiment also provides a use method of the aortic stent vascular system with the balloon at the top end, wherein the delivery assembly is a pull-wire type delivery device, and the method comprises the following steps:
(1) descending aorta vessel incision;
(2) delivering the stent 9 to a part to be released by delivering the stent into an aortic stent vascular system with a balloon at the top end from the incision;
(3) operating the balloon expansion device 3 to increase pressure to the expandable balloon 1 through the balloon catheter 2 to inflate the balloon;
(4) the sleeve 4 and the balloon catheter 2 are held, the fixing wire 7 is drawn out backwards, and the stent 9 tied on the fixing wire 7 by the operation line 8 is automatically expanded and released; the blood flow of the aorta (as shown in fig. 8) is blocked by the expanded balloon 1, so that the operation field is clear when a doctor fixes and sews the released stent, and the precise operation is convenient.
(5) The balloon expansion device 3 is operated to decompress the expandable balloon 1, and the balloon catheter 2, the push tube 6 and the sleeve 4 are pulled backwards to take out the aortic stent vascular system with the balloon at the top end.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. An aortic stent vascular system with a balloon at the top end is characterized by comprising a balloon component and a stent delivery component;
the balloon assembly comprises an expandable balloon, a balloon catheter, a balloon expansion device; the balloon catheter is of a hollow structure, one end of the balloon catheter is connected with the expandable balloon, and the other end of the balloon catheter is connected with the balloon expansion device;
the bracket conveying assembly is a pushing type conveying device or a pull-wire type conveying device;
the balloon assembly is disposed through the stent delivery assembly.
2. The balloon-tipped aortic stent vasculature of claim 1 wherein the delivery assembly is a pusher delivery device;
the delivery assembly comprises a sleeve and a pushing tube;
the sleeve is provided with a push pipe through hole, and the push pipe can slide in the push pipe through hole; the front end of the sleeve is also provided with a bracket accommodating groove;
the push pipe is provided with a balloon catheter through hole, and the balloon catheter can slide in the balloon catheter through hole.
3. The balloon-tipped aortic stent vasculature of claim 1 wherein the delivery assembly is a pull-wire delivery device;
the conveying assembly comprises a sleeve, a fixing wire and a fixing line;
the balloon catheter is provided with a fixed wire accommodating groove, and the fixed wire can slide in the fixed wire accommodating groove; the bracket is stranded into a bundle by a fixing wire, and the fixing wire and a fixing wire penetrating through the fixing wire are mutually wound.
4. The balloon-tipped aortic stent vasculature of claim 3 wherein the securing wire is a surgical wire.
5. The balloon-tipped aortic stent vasculature of claim 1, wherein the diameter of the expandable balloon at its widest point in the fully expanded condition is less than or equal to the inner diameter of the stent after it has been fully released.
6. The balloon-tipped aortic stent vasculature of claim 1 wherein the balloon forward end is further provided with a delivery head.
7. The aortic stent vasculature with a balloon at the tip of any one of claims 1 to 6 wherein the stent is a self-expanding stent graft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920155077.4U CN210228398U (en) | 2019-01-29 | 2019-01-29 | Aortic stent vascular system with balloon at top end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920155077.4U CN210228398U (en) | 2019-01-29 | 2019-01-29 | Aortic stent vascular system with balloon at top end |
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| CN210228398U true CN210228398U (en) | 2020-04-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745145A (en) * | 2019-01-29 | 2019-05-14 | 王赞鑫 | Initiative pulse support blood vessel system and application method of the top with sacculus |
| CN113397761A (en) * | 2021-05-27 | 2021-09-17 | 华中科技大学同济医学院附属协和医院 | Suturing-free artificial blood vessel and conveying device thereof |
-
2019
- 2019-01-29 CN CN201920155077.4U patent/CN210228398U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745145A (en) * | 2019-01-29 | 2019-05-14 | 王赞鑫 | Initiative pulse support blood vessel system and application method of the top with sacculus |
| CN113397761A (en) * | 2021-05-27 | 2021-09-17 | 华中科技大学同济医学院附属协和医院 | Suturing-free artificial blood vessel and conveying device thereof |
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