Process for the adjustment of a switchable flow limiting apparatus, and an apparatus operating according to the process
First Claim
1. Process for adjustment of a switchable, flow-limiting device inside a patient'"'"'s body having at least three stable operating states for limited flow of liquids or gases by means of a service device outside said patient'"'"'s body, said flow-limiting device and said service device being spatially separated with no bodily connection between said service device and said flow-limiting device comprising:
- establishing different flow rates for said liquids or gases by means of different throttle paths arranged to follow said flow-limiting device in a device that includes said flow-limiting device, and,transmitting energy needed for adjustment of said flow-limiting device from said service device into said device that includes said flow-limiting device,thereby switching said flow-limiting device among said at least three stable operating states to switch said flow of said liquids or gases from one throttle path arrangement to another only during a duration of said energy transmission.
3 Assignments
0 Petitions
Accused Products
Abstract
A process and an apparatus for adjustment of a switchable, flow-limiting device for limited flow of liquids or gases employs a remote service device. The flow-limiting device and the service device are spatially separated and there is no bodily connection between the two. Energy necessary for adjustment of the flow-limiting device is transmitted from the service device into an infusion pump that contains the flow-limiting device. The flow-limiting device is a valve having three stable operating positional states. The valve can only be switched while energy is being transmitted from the service device.
172 Citations
12 Claims
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1. Process for adjustment of a switchable, flow-limiting device inside a patient'"'"'s body having at least three stable operating states for limited flow of liquids or gases by means of a service device outside said patient'"'"'s body, said flow-limiting device and said service device being spatially separated with no bodily connection between said service device and said flow-limiting device comprising:
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establishing different flow rates for said liquids or gases by means of different throttle paths arranged to follow said flow-limiting device in a device that includes said flow-limiting device, and, transmitting energy needed for adjustment of said flow-limiting device from said service device into said device that includes said flow-limiting device, thereby switching said flow-limiting device among said at least three stable operating states to switch said flow of said liquids or gases from one throttle path arrangement to another only during a duration of said energy transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Apparatus for adjustment of the flow of liquids or gases inside a patient'"'"'s body, comprising:
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a device inside said patient'"'"'s body including a flow-limiting device, and a service device outside said patient'"'"'s body that enables switching of said flow-limiting device, wherein said flow-limiting device is a switchable flow-limiting device having at least three stable operating states, said flow-limiting device and said service device being spatially separated with no bodily connection between said flow-limiting device and said service device, a plurality of throttle paths arranged to follow said flow-limiting device in said device that includes said flow-limiting device, and a device for transmitting energy needed for adjustment of said flow-limiting device from said service device to switch said flow of said liquids or gases from one throttle path arrangement to another only during the duration of energy transmission from said service device, said flow-limiting device comprising a piston in a chamber within said flow-limiting device and an integrated leaf spring structure for mounting and guiding said piston, said piston being stable in three positional operating states, and said chamber having at least one lateral intake and at least two end faces with a central opposed outlet on each of said at least two end faces. - View Dependent Claims (12)
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Specification