METHOD AND DEVICE FOR IDENTIFYING A CHANGE IN PRESSURE IN THE LIQUID PATH OF A MICRODOSING DEVICE
First Claim
1. An insulin pump and an infusion set adapter having a membrane which can be acted upon by a liquid flow path associated with the pump, wherein the pump comprises a sensor by which a change in shape or location of at least a portion of the membrane caused by a change in the liquid pressure in the flow path can be detected in a contact-free manner to identify an occlusion in the flow path.
2 Assignments
0 Petitions
Accused Products
Abstract
An insulin pump and an infusion set adapter having a membrane which can be acted upon by a liquid flow path associated with the pump, wherein the pump comprises a sensor by which a change in shape or location of at least a portion of the membrane caused by a change in the liquid pressure in the flow path can be detected in a contact-free manner to identify an occlusion in the flow path.
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Citations
46 Claims
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1. An insulin pump and an infusion set adapter having a membrane which can be acted upon by a liquid flow path associated with the pump, wherein the pump comprises a sensor by which a change in shape or location of at least a portion of the membrane caused by a change in the liquid pressure in the flow path can be detected in a contact-free manner to identify an occlusion in the flow path.
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2. A method for identifying a change in pressure in a liquid in a liquid flow path associated with a microdosing device for delivering a liquid substance, the method comprising the steps of:
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a) providing a structure configured and operatively connected to the liquid substance in the liquid flow path such that the structure changes shape when a pressure of the liquid changes, and b) using a sensor to detect the change in shape without contacting the structure.
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3. A method for identifying a change in pressure in the liquid path of a microdosing device for dosing liquid substances, the method comprising the following steps:
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a) providing a physical entity which is configured and is operatively connected to the liquid guided in the liquid path in such a manner that it undergoes a change in form when the pressure of the liquid guided in the liquid path changes, and b) detecting the change in form of the physical entity by using contact-free measuring means for the purpose of identifying the change in pressure. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A device for identifying a change in pressure in a liquid in a liquid flow path associated with a microdosing device for delivering a liquid substance, the device comprising:
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a) a structure comprising a liquid-tight interior space operably connected via at least one opening to the flow path, wherein at least a portion of the structure changes shape if the pressure of the liquid in the flow path changes during operation of the microdosing device, and b) a sensor operably coupled to the structure such that a change in shape is detected in a contact-free manner.
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19. A device for identifying a change in pressure in a liquid in a liquid flow path associated with a microdosing device for delivering a liquid substance, the device comprising:
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a) a physical entity with a liquid-tight interior space which is connected or can be connected via at least one opening to the liquid path, wherein the physical entity is configured such that it undergoes a change in form when the pressure of the liquid in the liquid path changes during operational changes of the microdosing device, and b) measuring means configured and coupled to the physical entity such that a change in form of the physical entity is detected in a contact-free manner. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 38, 39, 40, 41, 42, 43, 44)
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45. A microdosing device for the temporally controlled dispensing of liquid medicaments, the microdosing device comprising a component device for identifying a change in pressure in a liquid in a liquid flow path associated with the microdosing device, the component device comprising:
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a) a physical entity with a liquid-tight interior space which is connected or can be connected via at least one opening to the liquid path, wherein the physical entity is configured such that it undergoes a change in form when the pressure of the liquid in the liquid path changes during operational changes of the microdosing device, and b) measuring means configured and coupled to the physical entity such that a change in form of the physical entity can be detected in a contact-free manner, wherein c) the physical entity is a changeable part which can be interchanged without using a tool and the measuring means is arranged on the microdosing device such that it cannot be removed without using a tool. - View Dependent Claims (46)
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Specification