Portable Infusion Set

• US 20080294097A1
• Filed: 09/03/2005
• Published: 11/27/2008
• Est. Priority Date: 09/03/2004
• Status: Abandoned Application

• Current Assignee: Robotkisul Company Limited
• Original Assignee: Robotkisul Company Limited
• Inventors: Kim, Jong-Uk, Hong, Sang-Eun
• Application Number:
  US11/660,287
• Publication Number:
  US 20080294097A1
• Time in Patent Office: Days
• US Class Current: 604/67
• CPC Class Codes: A61M 2206/22 eliminating pulsatile flows, e.g. by the provision of a dampening chamber
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/152 pressurised by contraction of elastic reservoirs containers for dispensing contents by contraction of an elastic bag provided therein, in general B65D83/0061
• CPC Class Codes: A61M 5/1684 by detecting the amount of infusate remaining, e.g. signalling end of infusion

Abstract

Disclosed is a portable infusion set which comprises a supply pump for artificially supplying infusion solution to a tube passage connecting a solution storing vessel and an injection syringe, an elastic tube which is installed at the rear end of the supply pump and which is made of elastic material so that the infusion solution supplied from the supply pump is introduced or discharged through the expansion or contraction of the elastic tube, a supply sensor which detects the expansion or contraction limit of the elastic tube, and a micro-computer which controls power supply to the supply pump according to the signal of the supply sensor. The infusion solution is temporarily stored in elastic tube by the supply pump which is set to on/off by the micro-computer, and then injected to a human body with constant pressure through the contractile force of the elastic tube. By using the portable infusion set of the present invention, infusion solution can be supplied when the storing vessel is below human body and power consumption is lowered by intermittent use of the supply pump making the infusion set light and portable, and overpressure between the supply pump and the injection syringe that occurs when the syringe is clogged is prevented making the use of the infusion set more safe

Claims

1. A portable infusion set comprising:

a supply pump for artificially supplying infusion solution to a tube passage connecting a solution storing vessel and an injection syringe,

an elastic tube which is installed at the rear end of the supply pump and which is made of elastic material so that the infusion solution supplied from the supply pump is introduced or discharged through the expansion or contraction of the elastic tube,

a supply sensor which detects the expansion or contraction limit of the elastic tube, and

a micro-computer which controls power supply to the supply pump according to the signal of the supply sensor.

2. The portable infusion set of claim 1, wherein the micro-computer has the function of stopping the supply pump when expansion limit of the elastic tube is detected by the supply sensor and starting the supply pump when contraction limit of the elastic tube is detected by the supply sensor.

3. The portable infusion set of claim 1, further comprising a controller installed at certain point of the discharge tube located at the rear end of the elastic tube in order to control the injected amount of the infusion solution.

4. The portable infusion set of claim 3, wherein the controller is either an electrically operated controller which is automatically controlled by user input into the automatic infusion set comprising the supply pump, the elastic tube and the supply sensor, or a manually operated controller in which the amount of the infusion solution is manually controlled.

5. The portable infusion set of claim 1, further comprising an air detecting sensor which is installed at the tube on the front or rear end of the supply pump in order to detect inclusion of the air.

6. The portable infusion set of claim 5, wherein the micro-computer includes the function of stopping the operation of the supply pump when air is detected in infusion solution in the tube by the air detecting sensor.