Series cavity piezoelectric drive indirect drug delivery pump

A piezoelectric drive and delivery pump technology, which is applied to liquid variable capacity machinery, pumps with flexible working elements, pumps, etc., to achieve the effects of easy maintenance, easy maintenance, and high drug utilization.

Pending Publication Date: 2019-05-17
ZHEJIANG NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of existing piezoelectric-driven drug delivery pumps, the present invention proposes an indirect drug delivery pump driven by serial cavity piezoelectricity, hereinafter referred to as drug delivery pump

Method used

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  • Series cavity piezoelectric drive indirect drug delivery pump
  • Series cavity piezoelectric drive indirect drug delivery pump
  • Series cavity piezoelectric drive indirect drug delivery pump

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Embodiment Construction

[0011] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0012] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention belongs to the field of drug delivery pumps, and particularly relates to a series cavity piezoelectric drive indirect drug delivery pump. The indirect drug delivery pump comprises a pumpcasing; a cover body, a left pump body, a middle body, a right pump body and an end cover are arranged in the pump casing and connected in sequence; the end cover is mounted on the pump casing; a flexible bag is mounted on the cover body; a liquid medium is arranged in the flexible bag; a first pump cavity is composed of a first piezoelectric vibrator and the left pump body; a second pump cavityis composed of a second piezoelectric vibrator and the left pump body; a third pump cavity is composed of a third piezoelectric vibrator and the right pump body; the three cavities are connected in series; a flexible membrane is closely attached to a drug storage bag; and the liquid medium in the flexible bag is conveyed by series cavity piezoelectric drive to squeeze the flexible membrane and a drug storage device, so that indirect drug delivery is achieved; and the drug storage device is a one-time replacement component, and the drug storage device can be rapidly replaced by arranging a stopvalve between an inlet channel and an outlet channel. The indirect drug delivery pump has the characteristics and advantages of being high in drug utilization rate, easy to maintain and high in output pressure.

Description

technical field [0001] The invention belongs to the field of drug delivery pumps, and in particular relates to an indirect drug delivery pump driven by series cavity piezoelectricity. Background technique [0002] Piezoelectric pumps have the advantages of simple structure, small size, low power consumption, precise control, and no electromagnetic interference. They have broad application prospects in the field of precise drug delivery and have received continuous attention from researchers at home and abroad. People have made significant progress in improving the output performance, stability and applicability of piezoelectric drug delivery pumps. For example, the Chinese invention patent No. CN1807887 "Integrated Precision Drug Delivery Pump" uses multiple piezoelectric vibrators to form a thin film. The pump is used for drug delivery, which improves the output pressure and flow rate of the drug delivery pump; the Chinese utility model patent number is CN204402805U "A Reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04F04B49/22F04B23/02
Inventor 陈松刘海东王成武罗罕频夏倩雯
Owner ZHEJIANG NORMAL UNIVERSITY
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