Artificial heart blood-pump capable of increasing blood pressure step by step

An artificial heart and blood pump technology, applied in the field of biomedical engineering, can solve problems such as insufficient blood pressure difference, achieve the effect of reducing resistance and avoiding damage

Inactive Publication Date: 2009-02-11
BEIJING UNIV OF TECH
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a two-stage artificial heart blood pump to solve the problem of insufficient blood pressure difference under the premise of ensuring that the red blood cells are not destroyed

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Artificial heart blood-pump capable of increasing blood pressure step by step

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Such as figure 1 As shown, the artificial heart blood pump for increasing blood pressure step by step disclosed in the present invention mainly includes two parts: a housing 13 and an inner cavity 10. The housing 13 and the inner cavity 10 are both cylindrical and made of medical titanium alloy TC4 material. The outer shell 13 is sleeved outside the inner shell to form an interlayer, and the stator coil is placed in the interlayer; one end of the outer shell 13 is sealed with the inner cavity 10 by an annular side plate, and the other end is sealed with the inner cavity 10 by an annular end cover 11. Inside the cavity 10 are placed the head guide vane 1, the first level impeller 3, the middle guide vane 4, the second level impeller 5, the tail guide blade 8, the rectifying tail cone 9; the head guide blade 1, the middle guide blade 4, and the tail guide blade 8 Fixed with the inner cavity wall; fixed shaft 7 is fixed on the axis of the head guide blade 1 and the middle guid...

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

No PUM Login to view more

Abstract

The invention discloses a mechanical heart blood pump which boosts blood pressure steps by steps, pertaining to the technical field of biomedical engineering, relating to a mechanical heart blood pump for boosting blood pressure. The mechanical heart blood pump comprises a driving stator and a rotor; a controller connected with a driving stator provides a driving power source; the driving stator composed of annular coils is located in an interlayer composed of a cylindrical shell 13 and a tubular cavity 10; a supporting rotor comprises a head guide vane 1 and a tail guide vane 8; the head guide vane 1 is arranged in the front end of the tubular cavity 10, the tail guide vane 8 is arranged in the rear end of the tubular cavity 10 and a rotor between the head guide vane 1 and the tail guide vane 8 is also arranged in the tubular cavity 10. The mechanical heart blood pump is characterized in that: the mechanical heart blood pump is divided into a front grade and a rear grade, wherein, the front grade is a Grade 1 blood pump and the rear grade is a Grade 2 blood pump; the Grade 1 blood pump and the Grade 2 blood pump are respectively driven by the controller. The blood firstly flows through the Grade 1 blood pump to generate a blood pressure and then flows through the Grade 2 blood pump to generate another blood pressure; the two blood pressures are overlaid to reach a blood pressure needed by the human body, thus avoiding the problem that red blood cells are injured by the rotational speed increase of an impeller when a single blood pump works to obtain a relatively high blood pressure.

Description

Technical field [0001] The invention belongs to the technical field of biomedical engineering, and relates to an artificial heart blood pump that gradually increases blood pressure. Background technique [0002] Artificial heart can be divided into volume type and impeller type according to the working principle of its blood pump. Many impeller-type artificial hearts have been used in clinical practice due to their simple structure and small size. At the same time, the problem of hemolysis has plagued the safe use of impeller blood pumps. At present, most of the impeller blood pumps are single-stage blood pumps. The typical structure of this type of blood pump has only a set of blood pump units that compensate blood pressure and provide blood flow. Therefore, huge suction power is required to meet the requirements of blood pressure and blood flow rate. Claim. For example, in the patent document with the patent number US2006241335A1, the blood pump has an impeller to provide blood...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/10
Inventor 常宇高斌刘有军冯继宏
Owner BEIJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap