CN104740699A - Heart film separating type artificial heart - Google Patents

Abstract

The invention provides a heat film separating type artificial heart, and belongs to the technical field of medical apparatuses and instruments. The heat film separating type artificial heart comprises a blood feeding tube, an one-way valve, an air tube, an artificial heart body, a blood discharging tube, a heart film, a rotating plate, a control body, a moving body, springs and a connecting tube; an air cavity, a blood cavity and a rotating shaft are embedded on the upper wall surface of the vessel through the heart film; the first spring is arranged between the left wall surface of the first moving body and the left wall surface of the control body; the second spring is arranged between the lower wall surface of the second moving body and the lower wall surface of the control body; one end of the connecting tube communicates with the blood feeding tube at the front end and while the other end of the connecting tube communicates with a storing cavity in the left side of the first moving body; when the blood feeding tube at the front end is at relatively high pressure, the rotating plate clockwise rotates, and the blood entering the blood cavity is reduced; when the blood feeding tube at the front end is at relatively low pressure, the rotating plate anticlockwise rotates, and more blood enter the blood cavity. The heat film separating type artificial heart is reasonable in design, simple in structure, and suitable for artificial heart system of a patient sensitive to blood pressure.

Description

Cardiac valves partition type artificial heart

Technical field

What the present invention relates to is a kind of artificial heart system, particularly a kind of cardiac valves partition type artificial heart with blood pressure regulating mechanism of technical field of medical instruments.

Background technology

Artificial heart, namely partially or completely substitutes the pump blood function of heart by bio-mechanical means, maintain the blood circulation of whole body.Divide by function and comprise ventricle auxiliary blood pump and total artificial heart.Artificial heart is transplanted as a kind of means for the treatment of heart failure, is the effective replacement scheme of cardiac transplantation.Total artificial heart is a kind of for replacing the equipment of two chambers in heart bottom.These two replaced chambers are called as " ventricle ".If a sufferer causes two ventricles all cannot play function again because heart failure reaches an advanced stage, just this equipment may be used.Heart failure refers to that heart causes the enough blood of unable conveying to meet the needs of health owing to suffering damage or weaken." late period " refers to that necessarily very serious degree has been arrived in this heart failure, to such an extent as to every other treatment except heart transplantation all cannot onset.In both cases, patient may need total artificial heart: patient may need total artificial heart to sustain life to instruct the heart that can obtain transplanting; Do not possess the qualification of heart transplantation, but to the heart failure late period of two ventricles loss of function gradually; The atrium of total artificial heart and patient connects.Artificial heart technology is a kind of FA biomedical technology, and along with the increase gradually of modern society heart patient, artificial heart technology will have boundless application prospect.

Through finding the retrieval of prior art document, China Patent No. 99126700.1, patent name: gas-electricity one formula blood pump, gas-electricity one formula artificial heart, this patented technology provides blood pump simplification, artificial heart miniaturization scheme, but it can not effectively regulate artificial heart to go out the hemorrhage pressure of blood vessel, easily causes the fluctuation of blood pressure of patient larger.

Summary of the invention

The present invention is directed to above-mentioned the deficiencies in the prior art, provide a kind of artificial heart system with blood pressure regulating mechanism, the hemorrhage pressure of blood vessel can be gone out by effectively anti-adjustment artificial heart.

The present invention is achieved through the following technical solutions, the present invention includes front end and enter blood vessel, check valve, blood vessel is entered in rear end, artificial heart, trachea, cardiac valves, go out blood vessel, rotating shaft, swivel plate, expansion link, control volume, first moving body, second moving body, first spring, second spring, connection tube, the blood in-out mouth of check valve enters the blood outlet of blood vessel respectively with front end, the blood inlet that blood vessel is entered in rear end is connected, and cardiac valves is arranged in artificial heart, and cardiac valves is divided into air chamber and blood chamber two parts artificial heart, and trachea is connected with air chamber, and the blood outlet of blood vessel is entered in rear end, the blood inlet going out blood vessel is all connected with blood chamber, the cross section that blood vessel is entered in rear end is rectangle, and rotating shaft is embedded in out on the upper wall surface of blood vessel, and one end and the rotating shaft of swivel plate are consolidated, the other end of swivel plate and one end of expansion link hinged, the first moving body, second moving body is arranged in control volume, and the first moving body is arranged in the upper end of the second moving body, being combined by domatic structure of the lower surface of the first moving body and the upper end of the second moving body, and the other end of expansion link passes out blood vessel upper wall surface successively, hinged with the lower wall surface of the second moving body after control volume lower wall surface, the first layout of spring is at the left wall of the first moving body, between the left wall of control volume, the second layout of spring is at the lower wall surface of the second moving body, between the lower wall surface of control volume, one end and the front end of connection tube are entered blood vessel and are connected, and the other end of connection tube is connected with the cavity volume on the left of the first moving body.

Compared with prior art, the present invention has following beneficial effect: the present invention enters the blood flow of blood chamber by changing, and can realize out the self regulation of angiorrbagia pressure, thus uses blood pressure power and also can remain stable when entering blood pressure power and being higher; The present invention is reasonable in design, and structure is simple, has wider application prospect.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the structural representation of A-A section in Fig. 1;

Fig. 4 is the structural representation of B-B section in Fig. 1;

Wherein: 1, blood vessel is entered in front end, 2, check valve, 3, blood vessel is entered in rear end, 4, artificial heart, 5, trachea, 6, cardiac valves, 7, air chamber, 8, blood chamber, 9, go out blood vessel, 10, rotating shaft, 11, swivel plate, 12, expansion link, 13, control volume, the 14, first moving body, the 15, second moving body, 16, the first spring, the 17, second spring, 18, connection tube.

Detailed description of the invention

Elaborate to embodiments of the invention below in conjunction with accompanying drawing, the present embodiment, premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.

embodiment

As shown in Figure 1, the present invention includes front end and enter blood vessel 1, check valve 2, blood vessel 3 is entered in rear end, artificial heart 4, trachea 5, cardiac valves 6, go out blood vessel 9, rotating shaft 10, swivel plate 11, expansion link 12, control volume 13, first moving body 14, second moving body 15, first spring 16, second spring 17, connection tube 18, the blood in-out mouth of check valve 2 enters the blood outlet of blood vessel 1 respectively with front end, the blood inlet that blood vessel 3 is entered in rear end is connected, and cardiac valves 6 is arranged in artificial heart 4, and cardiac valves 6 is divided into air chamber 7 and blood chamber 8 two parts artificial heart 4, and trachea 5 is connected with air chamber 7, and the blood outlet of blood vessel 3 is entered in rear end, the blood inlet going out blood vessel 9 is all connected with blood chamber 8, the cross section that blood vessel 3 is entered in rear end is rectangle, rotating shaft 10 is embedded in out on the upper wall surface of blood vessel 9, one end and the rotating shaft 10 of swivel plate 11 are consolidated, the other end of swivel plate 11 and one end of expansion link 12 hinged, the first moving body 14, second moving body 15 is arranged in control volume 13, first moving body 14 is arranged in the upper end of the second moving body 15, being combined by domatic structure of the lower surface of the first moving body 14 and the upper end of the second moving body 15, the other end of expansion link 12 passes out blood vessel 9 upper wall surface successively, hinged with the lower wall surface of the second moving body 15 after control volume 13 lower wall surface, the first spring 16 is arranged in the left wall of the first moving body 14, between the left wall of control volume 13, the second spring 17 is arranged in the lower wall surface of the second moving body 15, between the lower wall surface of control volume 13, one end and the front end of connection tube 18 are entered blood vessel 1 and are connected, and the other end of connection tube 18 is connected with the cavity volume on the left of the first moving body 14.

In work process of the present invention, when the pressure in air chamber 7 is less, cardiac valves 6 pops up, and the volume of blood chamber 8 becomes large, pressure diminishes, check valve 2 is opened, and blood enters blood vessel 1 successively through front end, check valve 2, rear end are entered blood vessel 3 and flowed into blood chamber 8; When the pressure in air chamber 7 is larger, cardiac valves 6 is upspring downwards, and the volume of blood chamber 8 diminishes, pressure becomes large, and check valve 2 is closed, and blood flows out blood chamber 8 through going out blood vessel 9.When front end enters that in blood vessel 1, pressure is larger, volume cavity pressure on the left of first moving body 14 is also larger, first moving body 14 moves right and first spring 16 that stretches, second moving body 15 moves down and compresses the second spring 17, swivel plate 11 turns clockwise, the aditus laryngis going out blood vessel 9 diminishes, and enters the oligemia of blood chamber 8, thus the hemorrhage pressure of using blood vessel 9 diminishes; When front end enters that in blood vessel 1, pressure is less, volume cavity pressure on the left of first moving body 14 is also less, under the action of the spring, first moving body 14 is moved to the left, the second moving body 15 moves up, swivel plate 11 is rotated counterclockwise, the aditus laryngis going out blood vessel 3 becomes large, and the blood volume entering blood chamber 8 increases, thus the hemorrhage pressure recover of using blood vessel 9 is normal.

Claims (1)

1. a cardiac valves partition type artificial heart, comprise front end and enter blood vessel (1), check valve (2), blood vessel (3) is entered in rear end, artificial heart (4), trachea (5), cardiac valves (6), go out blood vessel (9), the blood in-out mouth of check valve (2) enters the blood outlet of blood vessel (1) respectively with front end, the blood inlet that blood vessel (3) is entered in rear end is connected, cardiac valves (6) is arranged in artificial heart (4), cardiac valves (6) is divided into air chamber (7) and blood chamber (8) two parts artificial heart (4), trachea (5) is connected with air chamber (7), the blood outlet of blood vessel (3) is entered in rear end, the blood inlet going out blood vessel (9) is all connected with blood chamber (8), it is characterized in that, also comprise rotating shaft (10), swivel plate (11), expansion link (12), control volume (13), first moving body (14), second moving body (15), first spring (16), second spring (17), connection tube (18), the cross section that blood vessel (3) is entered in rear end is rectangle, rotating shaft (10) is embedded in out on the upper wall surface of blood vessel (9), one end and the rotating shaft (10) of swivel plate (11) are consolidated, the other end of swivel plate (11) and one end of expansion link (12) hinged, first moving body (14), second moving body (15) is arranged in control volume (13), first moving body (14) is arranged in the upper end of the second moving body (15), being combined by domatic structure of the lower surface of the first moving body (14) and the upper end of the second moving body (15), the other end of expansion link (12) passes out blood vessel (9) upper wall surface successively, hinged with the lower wall surface of the second moving body (15) after control volume (13) lower wall surface, first spring (16) is arranged in the left wall of the first moving body (14), between the left wall of control volume (13), second spring (17) is arranged in the lower wall surface of the second moving body (15), between the lower wall surface of control volume (13), one end and the front end of connection tube (18) are entered blood vessel (1) and are connected, the other end of connection tube (18) is connected with the cavity volume in the first moving body (14) left side.