CN214104657U

CN214104657U - Carbon dioxide gas slow release device for pericardial cavity

Info

Publication number: CN214104657U
Application number: CN202022729687.6U
Authority: CN
Inventors: 李平; 李庚�; 董念国
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Tongji Medical College of Huazhong University of Science and Technology; Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-09-03
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a pericardial cavity carbon dioxide gas sustained-release devices, including inflating the box, it is equipped with the elastic membrane on the box to inflate, inflate the box with be equipped with between the elastic membrane and inflate the chamber, be equipped with a plurality of venthole on the elastic membrane, be equipped with the steady voltage pneumatic valve in the venthole, the side of inflating the box is provided with the gas tube, be equipped with the coupling on the gas tube, be equipped with sealing cap on the coupling. The utility model is used for after being full of carbon dioxide gas, place the slow release carbon dioxide gas in the pericardial cavity when the heart operation to the air in the discharge pericardial cavity prevents that the air from being sent into behind the blood by the heart pump can't arrange to the greatest extent and causing risk such as air embolism or arrhythmia.

Description

Carbon dioxide gas slow release device for pericardial cavity

The technical field is as follows:

the utility model relates to the technical field of medical equipment, concretely relates to carbon dioxide gas slow release device in pericardial cavity.

Background art:

during cardiac surgery, the aorta needs to be blocked and then the heart chamber needs to be opened for surgical operation, the blood supply of the aorta is recovered after the surgery is completed, at the moment, gas in the heart chamber can be pumped to peripheral blood vessels and other organs along with the pulsation of the heart, gas embolism is easy to generate, and serious consequences are caused, so that the heart chamber needs to be exhausted for a long time after the cardiac surgery. The current common exhaust method is that after the operation is finished, an exhaust needle is inserted into the vessel wall, the blood in the vessel enters a needle tube through a needle point by utilizing the high pressure in the vessel, and then the gas in the vessel is exhausted out of the vessel while the blood is exhausted out of the body through the needle tube, so that the gas embolism in the operation and after the operation is prevented. However, the exhaust needle discharges the blood and the gas only by using the pressure difference between the inside of the blood vessel and the gas, and the exhaust pressure is small, so that the exhaust effect is poor. Meanwhile, the exhaust needle collects the discharged blood in the thoracic cavity and the pericardial cavity, and medical personnel need to continuously suck the blood by using an intracardiac suction device, so that the blood is discharged out of the thoracic cavity and the pericardial cavity, and the operation difficulty of the medical personnel is increased. Patent No. ZL201811102792.8 is through providing an exhaust apparatus for cardiac surgery, the device includes the exhaust needle, the exhaust needle includes the needle tubing, and the needle point with the needle tubing afterbody intercommunication, the afterbody intercommunication of needle tubing has the blood buffer, liquid outlet pipe end portion intercommunication has the blood blender, still the intercommunication has feed liquor pipe and guide tube on the blood blender, communicate exhaust apparatus's guide tube and intracardiac aspirator, the intracardiac aspirator of intercommunication back increases the negative pressure for the exhaust needle, make the blood of taking out can be direct to intracardiac aspirator in high efficiency, solve the pressure differential between the simple utilization aorta is inside and the gas, the not good problem of exhaust gas. However, the existing exhaust device can not isolate the heart from contacting with air in the operation process, and is difficult to exhaust the air in the blood after the air is pumped into blood vessels by the heart.

The utility model has the following contents:

technical problem to be solved

The utility model aims at providing a pericardial cavity carbon dioxide gas sustained-release devices for the air escape of pericardial cavity when the heart operation, solve prior art and be difficult to isolated heart in the operation in-process with the contact of air, the air in the blood can influence the heart and normally beat, easily leads to arrhythmia, also forms the problem of air cock in the tiny blood vessel of brain easily.

The technical scheme is as follows:

in order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a pericardial cavity carbon dioxide gas sustained-release devices, includes the box of aerifing, it is equipped with the elastic membrane on the box to aerify, aerify the box with be equipped with the chamber of aerifing between the elastic membrane, be equipped with a plurality of venthole on the elastic membrane, be equipped with the steady voltage pneumatic valve in the venthole, the side of the box of aerifing is provided with the gas tube, be equipped with the coupling on the gas tube, be equipped with sealed cap on the coupling.

The inflation box is used for being placed at the bottom of a pericardial cavity during cardiac surgery, the inflation box is connected with a carbon dioxide inflation device through the pipe joint on the inflation tube for inflation, the inflation tube is sealed through the sealing cap after sufficient carbon dioxide is inflated, the inflation cavity is used for storing carbon dioxide, the elastic membrane expands when the carbon dioxide is inflated into the inflation cavity, the pressure stabilizing air valve in the air outlet is opened after the carbon dioxide in the inflation cavity reaches certain pressure, slow deflation is carried out, the deflation pressure is kept stable, the air outlet holes arranged on the elastic membrane continuously release the carbon dioxide to multiple directions in the pericardial cavity, the air in the pericardial cavity can be discharged due to the fact that the specific gravity of the carbon dioxide is greater than that of the air, the pericardial cavity is filled with the carbon dioxide, and the heart is guaranteed not to be contacted with the air in the cardiac surgery process, and because carbon dioxide is dissolved in water, the carbon dioxide can be fused with blood after being pumped into the blood by the heart, the normal pulsation of the heart cannot be influenced, and air embolism is not easy to form.

Furthermore, an extension spring is arranged between the elastic membrane and the inflation box, and the extension spring is used for pulling the elastic membrane to retract when the pressure stabilizing air valve exhausts air after the elastic membrane inflates and expands in the inflation cavity, so that the phenomenon that excessive carbon dioxide gas is remained due to the fact that the pressure of the carbon dioxide gas in the inflation cavity is reduced along with the increase of the air exhaust amount and the carbon dioxide gas cannot be exhausted is avoided, and the carbon dioxide gas exhaust amount in the inflation cavity is increased.

Furthermore, the top of elastic membrane is equipped with the balancing weight, the balancing weight is used for pressing on the elastic membrane, is in extension spring's top can further increase aerify the pressure when chamber exhausts, guarantees to aerify the full carbon dioxide gas of being full of in the intracavity and fully discharge.

Furthermore, the pressure-stabilizing air valve is a valve type one-way valve, the air exhaust speed is stable, and the gas can be effectively prevented from flowing reversely.

Further, the inflatable box is made of flexible silica gel, can be properly deformed along with the shape of the inner wall of the pericardial cavity according to the different placement positions in the pericardial cavity, is convenient to be attached to the bottom of the pericardial cavity, and avoids damaging the pericardial cavity.

(III) the beneficial effects are as follows:

compared with the prior art, the utility model discloses the beneficial effect who produces is: through set up the elastic membrane on the box of aerifing, it aerifys the chamber to set up between box and the elastic membrane to aerify, set up a plurality of venthole on the elastic membrane, set up the steady voltage pneumatic valve in the venthole, can place the box of aerifing that will be full of the dioxide gas before carrying out heart operation in the pericardium, through steady voltage pneumatic valve slow release carbon dioxide gas, thereby discharge the air in the pericardium, make the pericardium intracavity be full of carbon dioxide gas, guarantee at heart operation in-process heart not with the air contact, and because carbon dioxide dissolves in water, can fuse with blood, can not influence the heart and normally beat, effectively avoid forming the air cock.

Description of the drawings:

in order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below.

Fig. 1 is a schematic structural diagram of a carbon dioxide gas sustained-release device in a pericardial cavity according to an embodiment of the present invention;

FIG. 2 is a schematic view of a carbon dioxide gas sustained release device in a pericardial cavity according to an embodiment of the present invention when inflated;

FIG. 3 is a schematic view of the carbon dioxide gas sustained release device in the pericardial space according to the embodiment of the present invention when deflated;

in the figure: 1. an inflation box; 2. an elastic film; 3. an inflation cavity; 4. an air outlet; 5. a pressure stabilizing air valve; 6. an inflation tube; 7. a pipe joint; 8. a sealing cap; 9. an extension spring; 10. balancing weight

The specific implementation mode is as follows:

the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, fig. 2 and fig. 3, the pericardial cavity carbon dioxide gas slow release device comprises an inflation box 1, an elastic membrane 2 is arranged on the inflation box 1, an inflation cavity 3 is arranged between the inflation box 1 and the elastic membrane 2, a plurality of air outlets 4 are arranged on the elastic membrane 2, a pressure stabilizing air valve 5 is arranged in each air outlet 4, an inflation tube 6 is arranged on the side surface of the inflation box 1, a tube joint 7 is arranged on the inflation tube 6, and a sealing cap 8 is arranged on the tube joint 7.

Preferably, an extension spring 9 is arranged between the elastic membrane 2 and the inflation box 1, and the extension spring 9 is used for pulling the elastic membrane 2 to retract when the pressure stabilizing gas valve 5 exhausts gas after the elastic membrane 2 inflates and expands in the inflation cavity 3, so that the phenomenon that the carbon dioxide gas in the inflation cavity 3 is too much remained due to the fact that the pressure is reduced along with the increase of the exhaust amount and the carbon dioxide gas exhaust amount in the inflation cavity 3 is increased is avoided.

Preferably, the top of the elastic membrane 2 is provided with a balancing weight 10, the balancing weight 10 is used for pressing on the elastic membrane 2 and is positioned above the extension spring 9, so that the pressure of the inflation cavity 3 during exhaust can be further increased, and the full carbon dioxide gas in the inflation cavity 3 can be fully discharged.

Preferably, the pressure stabilizing gas valve 5 is a valve type one-way valve, the exhaust speed is stable, and the gas can be effectively prevented from flowing backwards.

Preferably, aerify box 1 and be flexible silica gel material, can be according to the difference of placing the position in the pericardial cavity, along with the inner wall shape of pericardial cavity produces suitable deformation, be convenient for with the laminating of pericardial cavity bottom, avoid producing the damage to the pericardial cavity.

The use method of the carbon dioxide gas slow release device in the pericardial cavity of the utility model is as follows:

opening a sealing cap 8, connecting a carbon dioxide inflating device through a pipe joint 7, downwards moving an elastic membrane 2, downwards pulling the elastic membrane 2 and an extension spring 9 by a balancing weight 10, inflating the interior of an inflating cavity 3, expanding the elastic membrane 2 to ensure that the interior of the inflating cavity 3 is filled with enough oxidizing gas, sealing the pipe joint 7 by the sealing cap 8 after the inflation is finished, upwards moving the inflating box 1 at the bottom of a pericardial cavity by the elastic membrane 2, pressurizing the carbon dioxide in the inflating cavity 3 under the action of the elastic force of the elastic membrane 2 and the tension of the extension spring 9, discharging the carbon dioxide through a pressure stabilizing air valve 5 in an air outlet 4, slowly discharging the carbon dioxide by the air stabilizing air valve 5, keeping the stable discharging pressure, continuously discharging the carbon dioxide in multiple directions in the pericardial cavity by a plurality of air outlets 4 arranged on the elastic membrane 2, and discharging the air in the pericardial cavity because the specific gravity of the carbon dioxide is greater than that of the air, the pericardial cavity is filled with carbon dioxide gas, so that the heart is not contacted with air in the heart operation process, and the carbon dioxide is dissolved in water, can be fused with blood after being pumped into the blood by the heart pump, the normal pulsation of the heart cannot be influenced, and the air embolism is not easy to form.

To sum up, the utility model provides a carbon dioxide gas slow release device in pericardial cavity for the air escape of pericardial cavity when the heart operation, it is difficult to isolated heart in the contact of operation in-process with the air to solve prior art, and the air in the blood can influence the heart and normally beats, easily leads to arrhythmia, also forms the problem of air embolism easily in the tiny blood vessel of brain.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims

1. The slow release device for carbon dioxide gas in a pericardial cavity is characterized in that: the inflatable box is provided with an elastic membrane, an inflatable cavity is arranged between the inflatable box and the elastic membrane, the elastic membrane is provided with a plurality of air outlets, pressure stabilizing air valves are arranged in the air outlets, an inflatable tube is arranged on the side face of the inflatable box, a tube joint is arranged on the inflatable tube, and a sealing cap is arranged on the tube joint.

2. The carbon dioxide slow release device for the pericardial cavity according to claim 1, wherein: and an extension spring is arranged between the elastic membrane and the inflating box.

3. The carbon dioxide slow release device for the pericardial cavity according to claim 2, wherein: and a balancing weight is arranged at the top of the elastic membrane.

4. The carbon dioxide slow release device for the pericardial cavity according to claim 1, wherein: the pressure stabilizing air valve is a valve type one-way valve.

5. The carbon dioxide slow release device for the pericardial cavity according to claim 1, wherein: the inflatable box is made of flexible silica gel.