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Infusion device

An infusion device and infusion technology, applied in the field of medical devices, can solve the problems of high cost, abnormal precision and complexity of the electromechanical transmission part of the insulin pump, etc. Effect

Pending Publication Date: 2019-05-07
SHENZHEN ZHONGKE BIOMEDICAL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Assuming that the injection rate is set to 1 unit / hour, the insulin pump will slowly and uniformly push the piston forward by 0.1mm within 1 hour. Since the distance of the piston advance is too short, it needs to maintain a constant speed. This requirement makes the electromechanical transmission part of the insulin pump extremely precise and Complicated and costly

Method used

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0020] combine Figure 1 to Figure 4 As shown, the present embodiment provides an infusion device, which includes a housing composed of a lower housing 11 and a top cover 12, a motor 2 erected in the housing, and a motor 2 connected to the motor. 2-phase connected infusion mechanism. Specifically, the infusion mechanism includes a fixed sleeve 31 pivotally connected to the inner bottom surface of the lower casing 11, a storage groove 311 spirally recessed on the outer peripheral surface of the fixed sleeve 31, a tail end wound around the storage groove 311 and The infusion tube 32 whose head end is exposed to the casing, and the push knife 33 mounted on one side of the fixed sleeve 31 and sliding up and down along the axial direction of the fixed sleeve 31 . The port at the tail end of the infusio...

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Abstract

The invention discloses an infusion device. The device includes a shell, a driving part arranged in the shell, and an infusion mechanism connected to the driving part; the infusion mechanism includesa fixing sleeve in pivoted joint with the bottom surface inside the shell, a storage groove arranged in the outer peripheral face of the fixing sleeve through a spiral and recessed manner, an infusiontube whose tail end is wound in the storage groove and head end is exposed out of the shell, and a push broach which is arranged on one side of the fixing sleeve and can slide up and down along the axial direction of the fixing sleeve; the port on the tail end of the infusion tube is provided with a piston used for pushing a liquid medicine in the infusion tube; and the push broach matches the end face, away from the liquid medicine, of the piston. The device designed with this structure can effectively increase the length of the infusion tube through the arrangement of the infusion tube wound in the storage groove, so that the propulsion precision of the liquid medicine can be greatly enhanced, and the production costs of equipment can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an infusion device. Background technique [0002] In the medical field, a typical representative of portable high-precision human body liquid medicine infusion is an insulin pump, which is used to treat diabetic patients. Insulin is measured in "units", and each cc (or mL) is divided into 100 units, assuming that the concentration is the standard U-100. In this measurement method, one unit is equivalent to 10 μL. Usually, each drug reservoir stores 3ml of insulin, that is, 300 units, and looks like a short and thick small syringe. The total stroke of the drug reservoir piston is about 3cm, and the inner diameter is about 12mm. Assuming that the injection rate is set to 1 unit / hour, the insulin pump will slowly and uniformly push the piston forward by 0.1mm within 1 hour. Since the distance of the piston advance is too short, it needs to maintain a constant speed. Thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/145
Inventor 胡国雄王岳鹏
Owner SHENZHEN ZHONGKE BIOMEDICAL ELECTRONICS CO LTD
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