Diaphragm type pulsating blood pump driven by ultrasonic motor
An ultrasonic motor and diaphragm-type technology, applied in the direction of suction devices, etc., can solve the problems of not being able to reduce the thickness of the blood pump, the limitation of the efficiency of the transmission device, and the unfavorable blood pump implantation, so as to expand the scope of applicable people and increase the implantability , to reduce the effect of damage
Active Publication Date: 2012-02-01
心瓴上海医疗科技有限公司
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the above-mentioned device can not reduce the thickness of the blood pump because it uses a solid mechanical transmission device to change the rotational motion of the motor into a linear motion, which is not conducive to the implantation of the blood pump; Restricted
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.
[0016] Such as Figure 1-2 As shown, this embodiment includes: an ultrasonic motor base 1, a fixed bottom plate 2, a drive plate 3, a fastening nut 4, a fixed outer cylinder 5, a sleeve 6, a push plate 7, a push rod 8, a push rod 9, and a cam 10 , connecting liner 11, blood bag 12, upper cover 13, sleeve chute 14, blood inlet 15, outlet 16, one-way valve 17, output shaft 18 of ultrasonic motor.
[0017] The fixed bottom plate 2 is fixed on the ultrasonic motor base 1, the fixed outer cylinder 5 is fixed on the fixed bottom plate 2 by screws, the sleeve 6 and the upper cover 12 are connected with the fixed outer cy...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a diaphragm type pulsating blood pump driven by an ultrasonic motor, which belongs to the technical field of medical apparatuses. A fixed bottom plate is fixed on a base which is arranged on the output shaft side of an ultrasonic motor. A fixed outer barrel is connected with the fixed bottom plate. A sleeve barrel, an upper cover and the fixed outer barrel are connected into a whole. The upper and lower parts of a cam are fixed on a connecting lining barrel to form a barrel-shaped cam mechanism. The barrel-shaped cam mechanism and a driving disc are connected with theultrasonic motor by a tightening nut. One end of a push rod is embedded into a groove of the barrel-shaped cam mechanism, and the other end is connected with a push plate. A blood bag is arranged in an inner cavity which is formed between the push plate and the sleeve barrel. The other end of the blood bag is connected with the upper cover, and the blood bag is provided with a blood inlet and a blood outlet. Each blood opening is provided with a built-in check valve. The self structure of the ultrasonic motor is combined with the blood pump structure, the push rod and the push plate are arranged in the hollow barrel-shaped cam, and the blood bag is arranged in the hollow cavity of the sleeve barrel, so the structure of the pulsating type blood pump is compact, the volume is effectively decreased, the implantable capability is increased, and the application range for people is widened. The invention is free from the position limitation and has high driving efficiency and strong controllability.
Description
technical field [0001] The invention relates to a blood pump in the technical field of medical devices, in particular to an ultrasonic motor-driven diaphragm-type pulsating blood pump for ventricular assistance. Background technique [0002] At present, artificial heart assist devices are mainly used as a transitional bridge for heart transplantation and as a permanent treatment for heart failure. However, with the increasing clinical application of artificial heart assistance, reports on the recovery of failed myocardium (Left Ventricular Assist Device and Drug Therapy for the Reversal of Heart Failure, The new england journal of medicine, 355; 18, www.nejm.org , November 2, 2006) are also increasing. This may gradually increase the scope of artificial heart assistance for the treatment of severe heart failure in the end stage. The blood pump is the core component of the artificial heart assist device. So far, artificial heart assist devices that have entered the medical...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/12
Inventor 杨明李晶晶鹿存跃李世阳
Owner 心瓴上海医疗科技有限公司