CN212214278U - Right heart auxiliary device - Google Patents
Right heart auxiliary device Download PDFInfo
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- CN212214278U CN212214278U CN202020726955.6U CN202020726955U CN212214278U CN 212214278 U CN212214278 U CN 212214278U CN 202020726955 U CN202020726955 U CN 202020726955U CN 212214278 U CN212214278 U CN 212214278U
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Abstract
The utility model relates to a right heart auxiliary device, which comprises a flexible main pipeline, an atrium end sacculus, a pulmonary artery blocking sacculus, a blood pump and a pulmonary artery administration channel; the atrium end saccule and the pulmonary artery end saccule are distributed at two ends of the flexible main pipeline and are used for filling liquid and expanding so as to open the flexible main pipeline and used for crossing over the right ventricle to directly communicate the right atrium with the pulmonary artery; the pulmonary artery blocking balloon is positioned at one end of the flexible main pipeline close to the pulmonary artery and is used for filling liquid and expanding to block a gap between the flexible main pipeline and the inner wall of the pulmonary artery so as to prevent blood from entering a right ventricle from the pulmonary artery; the pulmonary artery administration channel is arranged in the side wall of the flexible main pipeline and is used for penetrating a guide wire and injecting medicine; the blood pump is arranged in the flexible main pipeline and used for providing blood flow force. The device can pump venous blood in the right atrium into the pulmonary artery, thereby achieving the purpose of reducing the volume and pressure load of the right ventricle; is suitable for perioperative treatment of patients with right heart failure who do not have left heart failure.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to right heart auxiliary device.
Background
Heart failure, heart failure for short; heart failure includes left heart failure, right heart failure and total heart failure. The hospitalization rate of heart failure patients in China accounts for about 20% of cardiovascular diseases in the same period, and the death rate of the heart failure patients in hospitalization accounts for about 5.3%. The clinical treatment effect of heart failure is still poor at present, the recurrence rate and the death rate are high, and the heart failure becomes a heavy burden of national health care and sanitary resources. In addition to drugs, mechanical devices such as heart assist devices are often used for treating patients with severe heart failure in clinic.
The current heart assist devices mainly include intra-aortic balloon counterpulsation (IABP), Ventricular Assist Devices (VAD) and extracorporeal membrane oxygenation devices (ECMO). Among them, IABP and VAD are mainly used for the adjuvant treatment of left heart failure, and are not suitable for perioperative treatment of right heart failure patients. ECMO is mainly used for the assistance of left heart failure or total heart failure, and can also be used for perioperative treatment of patients with right heart failure, but has the following defects: when the cannula is implanted into the peripheral great vessel by adopting a puncture method, the stroke of the femoral vein puncture tube is too long, so that the vessel is easily damaged; the blood supply of the femoral artery puncture tube is reverse blood flow, which is not in accordance with physiology, and serious complications are caused by insufficient blood supply of cardiovascular and cerebrovascular blood vessels, increased afterload of left ventricle/pulmonary edema, ischemic injury (even ischemic muscle necrosis) of lower limbs and the like; the long term presents a risk of femoral artery stenosis or aneurysm formation. When the central implantation cannula is adopted, serious infection complications can be caused due to the need of delaying chest closing; moreover, continuous anticoagulation treatment is needed in the machine transferring process, the risk of surgical bleeding is high, or insufficient anticoagulation causes membrane pulmonary embolism, which affects the use effect of the machine; and the machine is required to be withdrawn and the chest is closed again, so that the wound is large.
However, the right heart is different from the left heart, and has no strong compensatory ability, so that once right heart failure occurs, the recovery of a patient is very slow, and serious complications are easy to combine. For these patients, no dedicated heart assist device has been developed.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a right heart auxiliary device utilizes the device can directly go into pulmonary artery with the venous blood pump in the right atrium to reach the purpose that alleviates right ventricle capacity and pressure load.
The utility model provides a right heart auxiliary device, which comprises a flexible main pipeline, an atrium end sacculus, a pulmonary artery blocking sacculus, a blood pump and a pulmonary artery administration channel;
the atrial end balloon and the pulmonary artery end balloon are arranged at the pipe orifices at the two ends of the flexible main pipe and are used for filling liquid and expanding so as to expand the interior of the flexible main pipe; the pulmonary artery blocking balloon is positioned at one end of the flexible main pipeline close to the pulmonary artery and is used for filling liquid and expanding to block a gap between the flexible main pipeline and the inner wall of the pulmonary artery so as to prevent blood from entering a right ventricle from the pulmonary artery;
the blood pump is arranged in the flexible main pipeline and used for providing blood flow power;
the pulmonary artery drug delivery channel is arranged in the side wall of the flexible main pipeline and used for passing through a guide wire and injecting drugs.
In the right heart assist device, the atrium end balloon is located at one end of the flexible main pipeline, the pulmonary artery end balloon is located at the other end of the flexible main pipeline, and the pulmonary artery end balloon is located at one end of the flexible main pipeline close to the pulmonary artery.
In the right heart auxiliary device, the pulmonary artery blocking balloon is sleeved on the outer side wall of the flexible main pipeline; when the pulmonary artery occlusion balloon is filled with liquid, to occlude blood flow between the pulmonary trunk and the right ventricle.
In the right heart assist device, the flexible main pipe can be folded in a columnar manner.
In the right heart assist device, the delivery conduit includes an atrial end balloon fluid charging passage and a pulmonary artery end balloon fluid charging passage for charging/discharging fluid; the atrium end balloon fluid filling channel is communicated with the atrium end balloon, and the pulmonary artery end balloon fluid filling channel is communicated with the pulmonary artery end balloon and used for filling/discharging fluid.
In the right heart assist device, the delivery pipe includes a pulmonary artery occlusion balloon liquid filling channel, and the pulmonary artery occlusion balloon liquid filling channel is communicated with the pulmonary artery occlusion balloon for filling/discharging liquid.
The conveying pipeline comprises a pulmonary artery administration channel, the pulmonary artery administration channel is arranged in the side wall of the flexible main pipeline, and a guide wire and an injection medicine are arranged in the pulmonary artery administration channel in a penetrating mode.
In the right heart auxiliary device, a blood flow sensor, a temperature sensor and a pressure sensor are arranged in the flexible main pipe; the blood flow sensor, the temperature sensor and the pressure sensor are positioned in the side wall of the flexible main pipeline close to the pulmonary artery end and used for monitoring hemodynamic parameters in the pulmonary artery.
In the right heart auxiliary device, a blood pump sensor is arranged in the flexible main pipeline and comprises a blood pump impeller speed sensor.
In the right heart assist device, the blood pump is a magnetic suspension axial-flow pump.
The right heart auxiliary device of the utility model can be implanted between the right atrium and the pulmonary artery through the percutaneous transvenous puncture, and directly pump the venous blood of the right atrium into the pulmonary artery, thereby achieving the purpose of reducing the right ventricle capacity and the pressure load; is suitable for perioperative treatment of patients with right heart failure who do not have left heart failure.
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 embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a right heart assist device according to an embodiment of the present invention.
The reference numerals are explained below:
1. a flexible main pipe; 2. a blood pump; 3. a distraction section; 4. an atrial end balloon; 5. pulmonary artery end balloon; 6. a pulmonary artery occlusion balloon; 7. an atrial end balloon fluid plenum channel; 8. a pulmonary artery end balloon fluid pressurizing channel; 9. the pulmonary artery blocks the saccule to charge the pressure channel; 10. a pulmonary artery administration channel; 11. a blood flow sensor; 12. a temperature sensor; 13. a pressure sensor; 14 a signal conversion joint; 15. a central processing unit.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
The utility model provides a right heart auxiliary device suitable for do not combine right heart failure patient perioperative treatment of left heart failure, this right heart auxiliary device can implant between right atrium and pulmonary artery through venipuncture percutaneously, directly goes into pulmonary artery with the venous blood pump of right atrium to reach the purpose that alleviates right ventricle capacity and pressure load.
In order to normally power and ensure normal conduction in the operation of the pulmonary trunk, the right ventricle and the right atrium, the following embodiments can be selected:
a right heart auxiliary device comprises a flexible main pipeline, an atrium end sacculus, a pulmonary artery blocking sacculus, a blood pump and a pulmonary artery administration channel; the atrium end saccule and the pulmonary artery end saccule are distributed at two ends of the flexible main pipeline and are used for filling liquid and expanding so as to open the flexible main pipeline and used for crossing over the right ventricle to directly communicate the right atrium with the pulmonary artery; the pulmonary artery blocking balloon is positioned at one end of the flexible main pipeline close to the pulmonary artery and is used for filling liquid and expanding to block a gap between the flexible main pipeline and the inner wall of the pulmonary artery so as to prevent blood from entering a right ventricle from the pulmonary artery; the pulmonary artery administration channel is arranged in the side wall of the flexible main pipeline and is used for penetrating a guide wire and injecting medicine; the blood pump is arranged in the flexible main pipeline and used for providing blood flow power; and the conveying pipeline is arranged in the side wall of the flexible main pipeline, and a pipeline for pressurizing the expansion balloon is arranged in the conveying pipeline.
As one aspect of the present invention, before the right heart assist device is implanted, the flexible main pipe is in a cylindrical folded state, before the device is used, the delivery sheath is implanted through venipuncture, after one end of the guide wire is delivered to the pulmonary artery, the other end of the guide wire, that is, the guide wire at the external section of the body, passes through the delivery pipe, and under the guidance of the guide wire, the end of the distraction section of the right heart assist device is delivered to the pulmonary artery trunk; after the guide wire is conveyed to the right position, the guide wire is pulled out; the saccule is filled with liquid, the water can be filled selectively, the opening section of the saccule is opened to conduct the right ventricle and the pulmonary artery trunk, and the blood pump is positioned in the opening section to replace the right ventricle to pump blood.
By adopting the embodiment, the right heart auxiliary device is punctured and implanted between the right atrium and the pulmonary artery, and venous blood in the right atrium is directly pumped into the pulmonary artery, so that the purposes of reducing the right ventricle volume and pressure load are achieved; is suitable for perioperative treatment of patients with right heart failure who do not have left heart failure.
Fig. 1 is a schematic structural view of a right heart assist device according to an embodiment of the present invention; the right heart auxiliary device comprises a flexible main pipeline 1, wherein a pulmonary artery drug delivery channel 10 is arranged in the side wall of the flexible main pipeline 1, and a guide wire can be arranged in the pulmonary artery drug delivery channel 10 in a penetrating mode and used for guiding the flexible main pipeline 1 to be placed in the right atrium and the pulmonary artery trunk; furthermore, the pulmonary artery administration channel 10 can also be used to inject drugs into the pulmonary artery trunk.
With continued reference to fig. 1, both ends of the flexible main pipe 1 are open, one end of the flexible main pipe is positioned in the right atrium, and the other end of the flexible main pipe is communicated with the pulmonary artery trunk; flexible trunk line 1 sets up atrium end sacculus 4 at right atrium end, and flexible trunk line 1 sets up pulmonary artery end sacculus 5 at the tip of pulmonary artery trunk, and the cover is established pulmonary artery and is blocked sacculus 6 on the flexible trunk line 1 lateral wall that is close to pulmonary artery end sacculus 5, and is right when pulmonary artery blocks sacculus 6 and pressurizes for block the blood flow between pulmonary artery trunk and the right ventricle.
The blood pump 2 is positioned in the flexible main pipeline 1 and is arranged between the atrium end sacculus 4 and the pulmonary artery end sacculus 5.
As an aspect of the present invention, in order to conveniently charge/discharge the atrium end balloon 4, the pulmonary artery end balloon 5 and the pulmonary artery blocking balloon 6, an optional embodiment is that the atrium end balloon 4 is communicated with the atrium end balloon fluid charging passage 7, and the atrium end balloon fluid charging passage 7 is extended to the outside of the body through a vein and a delivery sheath; the pulmonary artery end balloon 5 is communicated with a pulmonary artery end balloon fluid pressurizing channel 8, and the pulmonary artery end balloon fluid pressurizing channel 8 extends to the outside of the body through a vein and a conveying sheath; the pulmonary artery blocking balloon 6 is communicated with a pulmonary artery blocking balloon fluid pressurizing channel 9, and the pulmonary artery blocking balloon fluid pressurizing channel 9 extends to the outside of the body through a vein and a conveying sheath. The atrial end balloon 4, the pulmonary artery end balloon 5 and the pulmonary artery occlusion balloon 6 are filled/drained in vitro. Preferably the liquid is liquid filled.
The preferred embodiment comprises that pressure sensors are respectively arranged in the atrium end balloon 4, the pulmonary artery end balloon 5 and the pulmonary artery blocking balloon 6, and leads of the pressure sensors are led out of the body through veins and a delivery sheath and are connected with a central processing unit 15 through a signal conversion joint 14.
As the utility model discloses an it is preferred, flexible trunk line can carry out the column folding.
As a preferred option of the embodiment of the present invention, a blood flow sensor 11, a temperature sensor 12 and a pressure sensor 13 are arranged in the flexible main pipe; the blood flow sensor 11, the temperature sensor 12 and the pressure sensor 13 are respectively connected with the central processing unit 15 through signal conversion connectors 14.
As the utility model discloses a blood pump sensor is provided with in the preferred, flexible trunk line of embodiment, blood pump sensor includes blood pump impeller speed sensor.
As an optimization of the embodiment of the utility model, the blood pump is a magnetic suspension axial-flow pump. The blood pump can also adopt a peristaltic pump, a centrifugal pump, an axial flow pump and a diaphragm pump; any type of blood pump replacement is contemplated by the present invention without departing from the scope of the claims.
As a preferred embodiment of the present invention, the central processing unit 15 is connected to all sensors disposed in the flexible main pipeline 1, and all sensors include, but are not limited to, the blood flow sensor 11, the temperature sensor 12, the pressure sensor 13, and the blood pump impeller speed sensor; the central processor 15 collects blood flow parameters and life monitoring data in real time through the sensor, and adjusts the impeller rotating speed of the blood pump in time according to the blood flow parameters and the life monitoring data so as to adjust the blood flow volume, ensure the safety and achieve the optimal treatment effect.
The utility model discloses a right heart auxiliary device, after using, can block sacculus 6 pressure release respectively through holding sacculus 4, pulmonary artery end sacculus 5 and pulmonary artery to the atrium, its inside liquid of evacuation makes flexible trunk line 1 collapse shrink, and it is external to dial out, and it is very convenient and factor of safety height to use.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. A right heart auxiliary device is characterized by comprising a flexible main pipeline, an atrium end sacculus, a pulmonary artery blocking sacculus, a blood pump and a pulmonary artery administration channel;
the atrial end balloon and the pulmonary artery end balloon are arranged at the pipe orifices at the two ends of the flexible main pipe and are used for filling liquid and expanding so as to expand the interior of the flexible main pipe; the pulmonary artery blocking balloon is positioned at one end of the flexible main pipeline close to the pulmonary artery and is used for filling liquid and expanding to block a gap between the flexible main pipeline and the inner wall of the pulmonary artery so as to prevent blood from entering a right ventricle from the pulmonary artery;
the blood pump is arranged in the flexible main pipeline and used for providing blood flow power;
the pulmonary artery drug delivery channel is arranged in the side wall of the flexible main pipeline and used for passing through a guide wire and injecting drugs.
2. The right heart assist device of claim 1 wherein the atrial end balloon is located at one end of the flexible main conduit, the pulmonary artery end balloon is located at the other end of the flexible main conduit, and the pulmonary artery end balloon is located at an end of the flexible main conduit proximate to a pulmonary artery.
3. The right heart assist device as recited in claim 2, wherein the pulmonary artery occlusion balloon is fitted over an outer sidewall of the flexible main conduit; when the pulmonary artery occlusion balloon is filled with liquid, to occlude blood flow between the pulmonary trunk and the right ventricle.
4. The right heart assist device of claim 1 wherein the flexible main conduit is capable of cylindrical folding.
5. The right heart assist device of claim 2, further comprising an atrial end balloon fluid charging channel and a pulmonary artery end balloon fluid charging channel for charging/discharging fluid; the atrium end balloon fluid filling channel is communicated with the atrium end balloon, and the pulmonary artery end balloon fluid filling channel is communicated with the pulmonary artery end balloon and used for filling/discharging fluid.
6. The right heart assist device of claim 3, further comprising a pulmonary artery occlusion balloon inflation channel in communication with the pulmonary artery occlusion balloon for inflation/deflation to inflate/collapse the pulmonary artery occlusion balloon.
7. The right heart assist device as recited in claim 1, wherein the pulmonary artery administration channel is disposed within a sidewall of the flexible main conduit and the interior thereof is used for threading a guide wire and injecting a drug.
8. The right heart assist device of claim 1, wherein a blood flow sensor, a temperature sensor and a pressure sensor are disposed within the flexible main conduit; the blood flow sensor, the temperature sensor and the pressure sensor are positioned in the side wall of the flexible main pipeline close to the pulmonary artery end and used for monitoring hemodynamic parameters in the pulmonary artery.
9. The right heart assist device of claim 1, wherein a blood pump sensor is disposed within the flexible main conduit, the blood pump sensor comprising a blood pump impeller speed sensor.
10. The right heart assist device of claim 1, wherein the blood pump is a magnetically levitated axial flow pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020726955.6U CN212214278U (en) | 2020-05-06 | 2020-05-06 | Right heart auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020726955.6U CN212214278U (en) | 2020-05-06 | 2020-05-06 | Right heart auxiliary device |
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| Publication Number | Publication Date |
|---|---|
| CN212214278U true CN212214278U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020726955.6U Active CN212214278U (en) | 2020-05-06 | 2020-05-06 | Right heart auxiliary device |
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| CN (1) | CN212214278U (en) |
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2020
- 2020-05-06 CN CN202020726955.6U patent/CN212214278U/en active Active
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