CN112494176A - Aorta channel sacculus - Google Patents
Aorta channel sacculus Download PDFInfo
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- CN112494176A CN112494176A CN202110014659.2A CN202110014659A CN112494176A CN 112494176 A CN112494176 A CN 112494176A CN 202110014659 A CN202110014659 A CN 202110014659A CN 112494176 A CN112494176 A CN 112494176A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2427—Devices for manipulating or deploying heart valves during implantation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00243—Type of minimally invasive operation cardiac
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
- A61B2017/00783—Valvuloplasty
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- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract
本发明公开了一种主动脉通道球囊，涉及介入手术器械技术领域，在TAVR术中充当临时主动脉瓣膜及介入器械操作支撑通道作用；在主动脉瓣扩张球囊中的造影剂被抽出后，心脏就能立刻暂时以主动脉通道球囊血流通道内的单向阀替代原生瓣膜，进行单向泵出血液的操作，之后有足够的时间将抽出了造影剂的主动脉瓣扩张球囊退出人体，以及将人工瓣膜支架置入原生瓣膜所在位，当人工瓣膜支架展开后，就可将人工瓣膜支架的输送器经过介入器械操作通道退出人体，展开的人工瓣膜即可替代原生瓣膜，此时将主动脉通道球囊中的造影剂抽出，并退出主动脉通道球囊即可，整个过程避免了TAVR术中由于主动脉瓣叶被球囊扩张后出现的大量血液返流和循环崩溃，降低了TAVR手术的危险系数。
The invention discloses an aortic channel balloon, which relates to the technical field of interventional surgical instruments, and acts as a temporary aortic valve and an interventional instrument operation support channel in TAVR operation; after the contrast agent in the aortic valve dilation balloon is drawn out , the heart can immediately temporarily replace the native valve with the one-way valve in the aortic channel balloon blood flow channel, and perform the operation of one-way pumping of blood, and then there is enough time to dilate the aortic valve balloon with the contrast agent drawn out. Exit the human body, and place the artificial valve stent into the position of the native valve. When the artificial valve stent is deployed, the conveyor of the artificial valve stent can be withdrawn from the human body through the operation channel of the interventional device, and the deployed artificial valve can replace the native valve. At the same time, the contrast agent in the aortic access balloon can be drawn out and withdrawn from the aortic access balloon. The whole process avoids a large amount of blood reflux and circulatory collapse due to the expansion of the aortic valve leaflets by the balloon during TAVR. Reduced the risk factor of TAVR surgery.
Description
Technical Field
The invention relates to the technical field of interventional surgical instruments, in particular to an aorta channel balloon with an interventional instrument operation channel and a blood flow channel.
Background
The aortic valve is the gate of the heart's blood pump, and when the heart contracts, the aortic valve opens, the blood pumps out, and when the heart relaxes, the aortic valve closes, preventing the pumped blood flow from flowing back to the heart. The opening and closing of the aortic valve is accompanied by a life cycle of the person, and rhythmic movement is performed to send blood to the whole body.
With the age and the deterioration of physical functions of people, the aortic valve which works continuously for decades can be conglutinated and calcified, so that the valve leaf can not be opened completely, the blood outflow tract of the heart is narrowed, the blood during the heart contraction can not be pumped completely, the pressure of the ventricle is increased, and the symptoms of heart fatigue, chest pain, syncope and the like, even sudden death can occur. For patients with severe disease, surgical intervention is required. Interventional TAVR surgery is a way of treating aortic valve diseases, and is a minimally invasive interventional way to cover and release a stent at the original aortic valve annulus through a vascular path, and replace the diseased aortic valve with a prosthetic valve on the stent. Most aortic valves in TAVR procedures are stenotic lesions, and the patient's aortic valve is heavily calcified, forming a ring-like calcification. The first choice of surgery requires the calcified aortic valve annulus to be destructively dilated by the aortic valve dilatation balloon, leaving enough room for stent release. For the heart with narrow aortic valve, the pressure is overhigh for a long time, and the heart has certain tolerance, but the aortic valve is suddenly expanded by the saccule and loses the opening and closing door for blood outflow instantly, and a large amount of blood flows back to the left ventricle in diastole, so that the pressure of the ventricle is steeply increased in short time, the circulation is collapsed, and even the heart stops beating. At this time, it is one of the most dangerous time periods of TAVR surgery, and a prosthetic valve stent needs to be immediately placed to restore the work of the heart. After the saccule is expanded, the artificial valve stent is withdrawn from the human body, and the artificial valve stent is successfully placed into the human body, so that the work can be finished within 5-10 minutes at the fastest speed under the smooth condition. The brain is extremely sensitive to ischemia, and relevant ischemic changes can occur after 10 seconds of ischemia; 5-10 minutes of ischemia may cause irreversible damage to the brain and other vital organs.
Disclosure of Invention
The present invention aims to provide an aortic channel balloon which alleviates the above problems.
In order to alleviate the above problems, the technical scheme adopted by the invention is as follows:
an aorta channel saccule comprises an elastic saccule, wherein a guide wire channel, a blood flow channel, an interventional device operation channel and a contrast agent expansion cavity are arranged in the elastic saccule, the guide wire channel, the blood flow channel and the interventional device operation channel penetrate through the front end and the rear end of the elastic saccule, the area among the guide wire channel, the blood flow channel and the interventional device operation channel in the elastic saccule is the contrast agent expansion cavity, and a valve support channel is positioned in the middle axis of the elastic saccule;
the guide wire channel is provided with a contrast agent expansion inlet leading to the contrast agent expansion cavity;
the blood flow channel is provided with a one-way valve, and the direction of the one-way valve which can be conducted is from front to back;
be provided with a plurality of elastic bulge in the intervention apparatus operation passageway, work as when contrast agent inflation chamber is full of the contrast agent, each elastic bulge inflation and mutual extrusion make intervention apparatus operation passageway cuts.
The aortic channel balloon can participate in TAVR operation, and provides safety guarantee for aortic valve balloon expansion and successful implantation of a prosthetic valve stent; after the aortic channel balloon is sent to the outer side of the native valve of the aorta along a guide rail formed by a guide wire and the channel balloon is expanded by contrast medium, the operation channel of the intervention instrument of the aortic channel balloon can be used for expanding the balloon and the artificial valve stent through the aortic valve, and the blood flow channel can be used for passing blood pumped from the heart in one way;
after the contrast agent in the aortic valve expansion balloon is extracted, the heart can immediately and temporarily replace a native valve with a one-way valve in a blood flow channel of the aortic channel balloon to perform one-way blood pumping operation, then the aortic channel balloon with the extracted contrast agent is ejected out of a human body for enough time, and a prosthetic valve stent is placed in the native valve position.
In a preferred embodiment of the present invention, four elastic protrusions are uniformly arranged in an inner circumferential direction of the interventional instrument operation channel.
In the scheme, four elastic bulges are designed, and can be extruded mutually after being expanded so as to cut off an operation channel of the interventional instrument, and the cutting-off effect is better.
In a preferred embodiment of the present invention, there is one guide wire channel and one interventional device operation channel, and there are two blood flow channels.
In a preferred embodiment of the present invention, the one-way valve includes a first elastic leaflet and a second elastic leaflet connected to the inner wall of the blood flow channel, and when the one-way valve is impacted by blood flowing from front to back, the first elastic leaflet and the second elastic leaflet separate and make the blood flow channel conducted; when the one-way valve is impacted by blood flowing from back to front, the first elastic valve leaf is overlapped and covered on the second elastic valve leaf, and the blood flow channel is cut off.
The one-way valve designed by the scheme has a simple structure, is similar to the structure of a native valve, and can effectively meet the requirement of unidirectional flow of aortic blood.
In a preferred embodiment of the present invention, the second resilient leaflet has a hardness greater than that of the first resilient leaflet.
This scheme has carried out the contrast design to the hardness of two first, two elasticity valve leafs, the one-way conduction of realization check valve that can be better.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic front view of an aortic channel balloon in accordance with the present invention;
FIG. 2 is a schematic diagram of a rear view of the aortic channel balloon of the present invention;
FIG. 3 is a schematic view of the aortic channel balloon of the present invention with the blood flow channel broken away;
FIG. 4 is a schematic structural diagram of the aortic channel balloon of the present invention when the blood flow channel is opened;
FIG. 5 is a schematic illustration of the aortic dilation balloon partially passing through the operative channel of the interventional instrument after inflation of the aortic channel balloon of the present invention;
FIG. 6 is a schematic view of the aortic valve dilation balloon fully inserted through the access device operating channel and inflated with the native valve in place, after inflation of the aortic channel balloon of the present invention;
in the figure: 1-an elastic balloon, 2-a blood flow channel, 3-a guide wire channel, 4-a first elastic valve leaflet, 5-a second elastic valve leaflet, 6-an interventional instrument operation channel, 7-an elastic bulge, 8-a contrast agent inflation cavity, 9-an aorta, 10-a native valve and 11-an aorta expansion balloon.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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 or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or point connection; 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.
Referring to fig. 1-6, the invention discloses an aorta channel balloon, which comprises an elastic balloon 1, wherein a guide wire channel 3, a blood flow channel 2, an interventional device operation channel 6 and a contrast agent expansion cavity 8 are arranged in the elastic balloon 1, the guide wire channel 3, the blood flow channel 2 and the interventional device operation channel 6 all penetrate through the front end and the rear end of the elastic balloon 1, the area among the guide wire channel 3, the blood flow channel 2 and the interventional device operation channel 6 is the contrast agent expansion cavity 8 in the elastic balloon 1, and the interventional device operation channel 6 is located at the middle axis of the elastic balloon 1;
the guide wire channel 3 is provided with a contrast agent expansion inlet leading to a contrast agent expansion cavity 8;
the blood flow channel 2 is provided with a one-way valve, and the direction of the one-way valve which can be conducted is from front to back;
a plurality of elastic bulges 7 are arranged in the interventional instrument operation channel 6, and when the contrast agent expansion cavity 8 is filled with the contrast agent, the elastic bulges 7 are expanded and mutually extruded, so that the interventional instrument operation channel 6 is cut off.
The process of carrying out TAVR surgery based on the aortic channel balloon of the invention is as follows:
the method comprises the following steps:
one femoral artery is selected as a main operation channel, and the other femoral artery is selected as an auxiliary channel. The auxiliary channel puncture-the puncture part is inserted with a first guide wire-the first guide wire goes up along the blood vessel-the first guide wire goes through the abdominal aorta-the first guide wire goes through the descending aorta-the first guide wire goes over the aortic arch and then goes down-the front section of the first guide wire reaches the ascending aorta 9;
the aortic channel saccule (in a contraction state when the contrast agent is not filled) is sleeved into the tail end of a first guide wire (the length of the guide wire is 260cm-300cm, the part entering a human blood vessel is removed, and the part exists outside the human body) through a guide wire channel 3 of the aortic channel saccule, and the aortic channel saccule (in a contraction state) enters the human blood vessel along the first guide wire until the aortic channel saccule is sent to an ascending aorta 9;
the contrast agent is filled into the contrast agent expansion cavity 8 of the aortic channel balloon through the inlet of the guide wire channel 3 outside the human body, the contrast agent continuously enters, the aortic channel balloon in the contraction state is inflated to the optimal inflation state (the state can be adjusted by filling or extracting the contrast agent), in the process of inflating the aortic channel balloon, the blood flow channel 2 is unfolded, the valve leaflets inside begin to perform switching work along with the contraction and relaxation of the heart, as shown in fig. 3 and 4, the arrow direction indicates the blood flow direction. The interventional instrument operating channel 6 is deployed and intercepted by the internally inflated resilient protrusion 7.
The aorta channel saccule is expanded, and the outer wall of the aorta channel saccule is in pressing and sealing contact with the inner wall of the aorta, so that the saccule is fixed on the ascending aorta.
Step two:
the main channel (femoral artery) is punctured, a second guide wire is inserted into a puncture position, the second guide wire extends upwards along a blood vessel, the second guide wire passes through an abdominal aorta, the second guide wire passes through a descending aorta, the second guide wire crosses an aortic arch, then goes downwards, the second guide wire is sent to an ascending aorta, and then enters an intervention instrument operation channel 6 of the aortic channel balloon, and pushes through a gap in the middle of an elastic bulge 7 of a closed channel (without worrying about the phenomenon that the second guide wire cannot be pushed through, the existing intervention instruments such as balloon materials, guide wires and the like are all made of super-smooth coatings or super-smooth materials, and the filling amount of contrast agents is controllable), and the second guide wire passes through the aortic channel balloon and then passes through an aortic annulus to enter a left ventricle;
the aortic valve dilatation balloon 11 (in a contracted state) is sleeved at the tail end of a second guide wire (the guide wires are longer, and the part entering the blood vessel of the human body is removed, and the part outside the human body is also the part) through a guide wire pipeline in the center of the aortic valve dilatation balloon 11 (in a contracted state), the aortic valve dilatation balloon 11 (in a contracted state) enters the blood vessel of the human body along the second guide wire, enters the intervention instrument operation channel 6 of the aortic channel balloon, and extrudes through a gap in the middle of the elastic bulge 7 of the closed channel until the aortic valve is delivered to the aortic valve annulus, as shown in fig.;
the contrast agent is filled into the aortic valve dilatation balloon 11 through a contrast agent injection port of the aortic valve dilatation balloon positioned outside the human body, and the native valve 10 is dilated through the expansion process of the aortic valve dilatation balloon 11. After the expansion is completed, the contrast agent is pumped back by using the injector, the contrast agent in the aortic valve expansion balloon 11 returns to the injector along the contrast agent pipeline, and the aortic valve expansion balloon 11 is restored to the contracted state from the expanded state. After the aortic valve expansion balloon 11 is completely contracted, the aortic valve expansion balloon is withdrawn from the valve ring along the second guide wire, and the operation channel 6 of the intervention instrument of the aortic channel balloon is withdrawn after the aortic valve expansion balloon is withdrawn from the valve ring, until the aortic valve expansion balloon is withdrawn from the human body.
Step three:
the artificial valve stent system (the artificial valve stent system is composed of an artificial valve stent and a conveyor, the artificial valve stent is compressed and fixed on the conveyor and is conveyed to the aortic valve annulus by the conveyor, enters a human body along a second guide wire, and enters the aorta, then enters an intervention device operation channel 6 of the balloon, extrudes through a gap in the middle of an elastic bulge 7 of a closed channel, the compressed artificial valve stent is conveyed to the position of a native valve, the artificial valve stent is slowly released, the stent release is completed, the valve in the stent starts to work, the conveyor exits from the valve annulus along the second guide wire, and the device operation channel 6 of the balloon exits after the passage until the human body exits.
Step four:
the second guide wire is withdrawn except for the first guide wire configured on the saccule of the invention, and the second guide wire goes backwards all the way and is withdrawn from the interventional instrument operation channel 6 of the saccule of the invention until being withdrawn from the human body.
Step five:
the contrast agent in the balloon is pumped back, the balloon is recovered to a contracted state from an expanded state, and after the balloon is completely contracted, the balloon is withdrawn along the first guide wire arranged on the balloon, and the contrast agent moves backwards along the way until the balloon is withdrawn from the human body.
Step six:
and withdrawing the second guide wire, wherein the second guide wire moves backwards one way until the second guide wire exits from the human body.
In an alternative embodiment of the invention, four elastic protrusions 7 are uniformly arranged in the interventional instrument operation channel 6 in the circumferential direction.
In an alternative embodiment of the present invention, there are one guide wire channel 3 and one interventional device manipulation channel 6 and two blood flow channels 2.
In an optional embodiment of the invention, the one-way valve comprises a first elastic valve leaf 4 and a second elastic valve leaf 5 which are connected with the inner wall of the blood flow channel 2, when the one-way valve is impacted by blood flowing from front to back, the first elastic valve leaf 4 and the second elastic valve leaf 5 are separated, and the blood flow channel 2 is conducted; when the one-way valve is impacted by blood flowing from back to front, the first elastic valve leaf 4 is overlapped and covered on the second elastic valve leaf 5, and the blood flow channel 2 is cut off.
In this embodiment, the second elastic leaflet 5 has a hardness greater than that of the first elastic leaflet 4.
When the TAVR valve conveyor is conveyed into an aortic valve annulus, and the aortic arch is bent to a larger degree or the transverse center, the conveyor is not easy to pass through the aortic arch or enter the aortic annulus, a ring of sleeve is required to be added at the front end of the conveyor and connected by a guide wire guide pipe, a guide wire is used as a fulcrum to pull the conveyor, and the purpose of adjusting the bending degree of the conveyor to pass through the aortic arch or enter the aortic annulus is achieved. The traction of the guide wire catheter always applies pressure to the lower wall of the aortic arch, and the guide wire catheter synchronously rubs the lower wall of the aortic arch to move forward along with the advance of the conveyor, thereby applying a cutting effect to the lower wall of the aortic arch and increasing the risk of aortic dissection.
Based on this, in an optional embodiment of the present invention, the aortic channel balloon of the present invention may be designed into an arc shape similar to a banana structure as a whole, and the interventional device operation channel 6 inside may be designed into an arc shape accordingly (when the aortic arch is bent to a very large degree, the channel may also be designed into a diagonal oblique line structure in the balloon directly), so as to adjust the direction of the conveyor, so that the conveyor obtains a larger passing angle, and the stress generated by the interventional device passing through the blood vessel of the human body is released to the balloon as a whole.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An aorta channel balloon is characterized by comprising an elastic balloon, wherein a guide wire channel, a blood flow channel, an interventional device operation channel and a contrast agent expansion cavity are arranged in the elastic balloon, the guide wire channel, the blood flow channel and the interventional device operation channel penetrate through the front end and the rear end of the elastic balloon, the contrast agent expansion cavity is arranged in the elastic balloon in a region among the guide wire channel, the blood flow channel and the interventional device operation channel, and the interventional device operation channel is located at the middle axis of the elastic balloon;
the guide wire channel is provided with a contrast agent expansion inlet leading to the contrast agent expansion cavity;
the blood flow channel is provided with a one-way valve, and the direction of the one-way valve which can be conducted is from front to back;
be provided with a plurality of elastic bulge in the intervention apparatus operation passageway, work as when contrast agent inflation chamber is full of the contrast agent, each elastic bulge inflation and mutual extrusion make intervention apparatus operation passageway cuts.
2. The aortic channel balloon as claimed in claim 1, wherein the interventional instrument operation channel inner ring is uniformly provided with four of the resilient protrusions.
3. The aortic channel balloon as claimed in claim 1, wherein the guidewire channel and interventional device manipulation channel are each one, and the blood flow channel is two.
4. The aortic channel balloon as claimed in claim 1, wherein the one-way valve comprises first and second elastic leaflets attached to the inner wall of the blood flow channel, the one-way valve separates and renders the blood flow channel conductive when impacted by blood flowing from front to back; when the one-way valve is impacted by blood flowing from back to front, the first elastic valve leaf is overlapped and covered on the second elastic valve leaf, and the blood flow channel is cut off.
5. The aortic channel balloon as claimed in claim 4, wherein the second resilient leaflet has a stiffness greater than the stiffness of the first resilient leaflet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110014659.2A CN112494176A (en) | 2021-01-06 | 2021-01-06 | Aorta channel sacculus |
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| CN202110014659.2A CN112494176A (en) | 2021-01-06 | 2021-01-06 | Aorta channel sacculus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114081675A (en) * | 2021-09-28 | 2022-02-25 | 四川大学华西医院 | Transcatheter Aortic Valve Replacement Assist Device |
| CN114768057A (en) * | 2022-04-09 | 2022-07-22 | 四川大学华西医院 | Cutting sacculus pipe of medicine carrying |
| CN115212449A (en) * | 2022-07-28 | 2022-10-21 | 北京悦唯医疗科技有限责任公司 | Balloon catheter |
| CN116784917A (en) * | 2023-08-22 | 2023-09-22 | 首都医科大学附属北京安贞医院 | Calcified aorta block perfusion system and method |
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| CN116784917B (en) * | 2023-08-22 | 2024-11-22 | 首都医科大学附属北京安贞医院 | Calcified aorta occlusion perfusion system and method |
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