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A valveless dual-chamber resonant piezoelectric-driven insulin pump

A piezoelectric drive, insulin pump technology, applied in the direction of variable displacement pump components, pumps, pump components, etc., can solve the problems of poor stability and low precision

Active Publication Date: 2022-03-29
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a valveless double-chamber resonant piezoelectric-driven insulin pump to solve the problems of low precision and poor stability in the current traditional insulin pumps

Method used

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  • A valveless dual-chamber resonant piezoelectric-driven insulin pump
  • A valveless dual-chamber resonant piezoelectric-driven insulin pump
  • A valveless dual-chamber resonant piezoelectric-driven insulin pump

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Embodiment Construction

[0015] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. .

[0016] see Figure 1~4 , in the embodiment of the present invention, the specific structure includes:

[0017] A valveless dual-chamber resonant piezoelectric-driven insulin pump, consisting of a pump cover (1), shrapnel (2), a diaphragm (3), an inner chamber liquid inlet (4), an outer chamber liquid inlet (5), an outer chamber Cavity (6), piezoelectric stack (7), vibration transmission rod (8), inner cavity (9), inner cavity liquid outlet (10), outer cavity liquid outlet (11), bluff body (12) ; The pump cover (1) has cylindrical screw holes for fixing the outer cavity (6); the piezoelectric stack (7...

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Abstract

The invention discloses a valveless double-chamber resonant piezoelectric-driven insulin pump, which comprises a pump cover, shrapnel, a vibration transmission rod, a diaphragm, a drug excitation unit, an outer chamber, an inner chamber and a baffle body. The drug excitation unit changes the amplitude after system resonance amplification, thereby increasing the change rate of the pump chamber volume. The design of the inner chamber enhances the overall pumping effect, improves the output pressure and flow rate of the piezoelectric pump, and greatly increases the pump pressure. The pressure required during work ensures the consistency of drug infusion and achieves the purpose of precise quantitative control. In the present invention, a blocking body is provided to reduce backflow, and the directional delivery of insulin is realized under the action of the blocking body. The invention has the advantages of high precision, good stability, small size, low power consumption, low cost, high safety, no electromagnetic interference, etc., and has broad market prospects in the transportation of insulin in biomedicine.

Description

technical field [0001] The invention belongs to the field of medical auxiliary equipment and fluid delivery, and is used for delivering insulin, in particular to a valveless double-cavity resonance piezoelectric-driven insulin pump. Background technique [0002] The piezo-driven insulin pump is a continuous micro-dosing device that replaces the artificial injection of insulin for diabetic patients. Due to the difficulty in manufacturing the micro-stepping motors of traditional mechanical plunger insulin pumps, and the difficulty in ensuring the accuracy, the cost of insulin pumps remains high, which seriously hinders the popularization of insulin pump products among patients. The main advantages of piezoelectric pumps are simple and compact structure, stable working performance, easy flow control, high precision, and no electromagnetic interference. At the same time, the driving principle of the piezoelectric-driven insulin pump is very different from that of the traditiona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B43/04F04B53/00A61M5/142
CPCA61M5/14224F04B43/046F04B43/0009
Inventor 何丽鹏胡殿彬范奇志杜名瑞黄永新方相浩王晨升
Owner CHANGCHUN UNIV OF TECH