A pulsatile artificial blood pump

Abstract

The invention discloses a pulsating type artificial blood pump which comprises a driving device, a plane connecting rod mechanism and a blood pump. The driving device is connected with the blood pumpthrough the plane connecting rod mechanism, and the blood pump is used for simulating cardiac blood pumping. The pulsating artificial blood pump can generate pulsatile delivery while pumping blood, isused for heart failure assistance, extracorporeal circulation assistance in heart surgery and the like, can truly simulate cardiac blood pumping, enables perfusion of extracorporeal circulation to generate pulse blood flow similar to that generated by human heart pulsations, enables perfusion to conform to human body physiology, improves blood perfusion quantity of tissues in the circulation process, can well complete blood circulation, and reduces cardiac burden. The heart operation is safer, and the operation effect is better.

Description

technical field

[0001] The invention relates to the technical field of medical instruments for cardiac surgery, in particular to a pulsating artificial blood pump. Background technique

[0002] Blood pumps, also known as artificial heart pumps, can be divided into implantable blood pumps and blood pumps in extracorporeal assistive devices. Implantable blood pumps can be divided into total artificial heart and ventricular assist device according to the auxiliary method. The pump is small in size, complicated in control and high in cost. The blood pump in the extracorporeal auxiliary device is generally large in size, but the cost is low. It is an important part of the extracorporeal circulation device. It can partially or completely replace the pump function of the heart and maintain a good blood circulation throughout the body. It is mainly used for the heart. Vascular surgery, tumor therapy, extracorporeal membrane oxygenation, lung transplantation and other surgical field...

Examples

Embodiment 1

[0033] Such as Figure 1-Figure 2 As shown: this embodiment provides a pulsating artificial blood pump, including a driving device, a planar linkage mechanism and a blood pump. The driving device is connected to the blood pump through a planar linkage mechanism, and the blood pump is used to simulate heart pumping.

[0034]The planar linkage mechanism includes a first crank 1, a second crank 2, a first connecting rod 3, a second connecting rod 4, a crossbeam 5 and a rocker 6, one end of the first crank 1 is connected with a driving device, and one end of the first crank 1 The other end is hinged with one end of the first connecting rod 3, the other end of the first connecting rod 3 and one end of the rocking bar 6 are all hinged with one end of the crossbeam 5, the other end of the rocking bar 6 is fixedly connected with the base 7, and the second crank One end of the second crank 2 is connected to the driving device, the other end of the second crank 2 is hinged to one end of...

Embodiment 2

[0042] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the planar linkage mechanism includes a first crank 1, a second crank 2, a first connecting rod 3, a second connecting rod 4, a beam 5 and a rocker 6, and the first One end of the crank 1 is connected with the driving device through a coupling, the other end of the first crank 1 is hinged with one end of the first connecting rod 3, the other end of the first connecting rod 3 is hinged with one end of the crossbeam 5, and the other end of the rocker 6 is hinged. One end is fixedly connected to the base 7, one end of the second crank 2 is connected to the driving device through a coupling, the other end of the second crank 2 is hinged to one end of the second connecting rod 4, and the other end of the second connecting rod 4 is connected to the beam The other end of 5 is hinged, the middle part of beam 5 is hinged with the push rod 8 of the blood pump, one end of rocker 6 is hinged ...

technical field

[0001] The invention relates to the technical field of medical instruments for cardiac surgery, in particular to a pulsating artificial blood pump. Background technique

[0002] Blood pumps, also known as artificial heart pumps, can be divided into implantable blood pumps and blood pumps in extracorporeal assistive devices. Implantable blood pumps can be divided into total artificial heart and ventricular assist device according to the auxiliary method. The pump is small in size, complicated in control and high in cost. The blood pump in the extracorporeal auxiliary device is generally large in size, but the cost is low. It is an important part of the extracorporeal circulation device. It can partially or completely replace the pump function of the heart and maintain a good blood circulation throughout the body. It is mainly used for the heart. Vascular surgery, tumor therapy, extracorporeal membrane oxygenation, lung transplantation and other surgical field...

Examples

Embodiment 1

[0033] Such as Figure 1-Figure 2 As shown: this embodiment provides a pulsating artificial blood pump, including a driving device, a planar linkage mechanism and a blood pump. The driving device is connected to the blood pump through a planar linkage mechanism, and the blood pump is used to simulate heart pumping.

[0034]The planar linkage mechanism includes a first crank 1, a second crank 2, a first connecting rod 3, a second connecting rod 4, a crossbeam 5 and a rocker 6, one end of the first crank 1 is connected with a driving device, and one end of the first crank 1 The other end is hinged with one end of the first connecting rod 3, the other end of the first connecting rod 3 and one end of the rocking bar 6 are all hinged with one end of the crossbeam 5, the other end of the rocking bar 6 is fixedly connected with the base 7, and the second crank One end of the second crank 2 is connected to the driving device, the other end of the second crank 2 is hinged to one end of...

Embodiment 2

[0042] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the planar linkage mechanism includes a first crank 1, a second crank 2, a first connecting rod 3, a second connecting rod 4, a beam 5 and a rocker 6, and the first One end of the crank 1 is connected with the driving device through a coupling, the other end of the first crank 1 is hinged with one end of the first connecting rod 3, the other end of the first connecting rod 3 is hinged with one end of the crossbeam 5, and the other end of the rocker 6 is hinged. One end is fixedly connected to the base 7, one end of the second crank 2 is connected to the driving device through a coupling, the other end of the second crank 2 is hinged to one end of the second connecting rod 4, and the other end of the second connecting rod 4 is connected to the beam The other end of 5 is hinged, the middle part of beam 5 is hinged with the push rod 8 of the blood pump, one end of rocker 6 is hinged ...

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