Method of cleaning an implanted medication infusion pump with discharge side port
First Claim
1. In an implantable medication infusion pump having a pump housing with a medication-receiving reservoir and-pump means for delivering medication through a pump outlet port, a refill port on the pump housing to permit transcutaneous needle access to refill the reservoir with the medication, a catheter coupled to the pump outlet port and cooperating therewith to define a discharge flow path for flow passage of the medication to a patient, and a side access port to permit transcutaneous needle access to the discharge flow path, a method of cleaning the pump without requiring explantation of the pump from the patient, said method comprising the steps of:
- operating the pump means to deliver residual medication from the reservoir to the discharge flow path, while aspirating the delivered medication from the patient via a needle coupled through said side access port to the discharge flow path;
delivering a selected cleaning agent to the reservoir via said refill port;
operating the pump means to deliver the cleaning agent from the reservoir to the discharge flow path, while aspirating the delivered cleaning agent from the patient via said side access port; and
refilling the reservoir with the medication via said refill port.
2 Assignments
0 Petitions
Accused Products
Abstract
A medication infusion pump is provided of the type adapted for implantation into the body of a patient, and for programmable delivery of a selected medication through a catheter to the patient over an extended period of time. A side port assembly is mounted quickly and easily onto the pump and defines a flow path through which the medication is discharged to the catheter. The side port assembly includes an access port to permit transcutaneous needle access to the discharge flow path, in combination with a check valve to prevent backflow within the discharge flow path. The discharge side access port can be used to flush residue from the catheter, or in combination with a primary refill port on the pump to flush the pump and/or to determine actual pump stroke volume.
272 Citations
1 Claim
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1. In an implantable medication infusion pump having a pump housing with a medication-receiving reservoir and-pump means for delivering medication through a pump outlet port, a refill port on the pump housing to permit transcutaneous needle access to refill the reservoir with the medication, a catheter coupled to the pump outlet port and cooperating therewith to define a discharge flow path for flow passage of the medication to a patient, and a side access port to permit transcutaneous needle access to the discharge flow path, a method of cleaning the pump without requiring explantation of the pump from the patient, said method comprising the steps of:
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operating the pump means to deliver residual medication from the reservoir to the discharge flow path, while aspirating the delivered medication from the patient via a needle coupled through said side access port to the discharge flow path; delivering a selected cleaning agent to the reservoir via said refill port; operating the pump means to deliver the cleaning agent from the reservoir to the discharge flow path, while aspirating the delivered cleaning agent from the patient via said side access port; and refilling the reservoir with the medication via said refill port.
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Specification
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- Resources
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Current AssigneeMedtronic Minimed Incorporated (Medtronic Plc)
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Original AssigneeMinimed, Inc. (Medtronic Plc)
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InventorsSrisathapat, Chad, Indravudh, Virote
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Primary Examiner(s)Maglione, Corrine M.
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Assistant Examiner(s)CERMAK, ADAM
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Application NumberUS08/401,177Time in Patent Office250 DaysField of Search604/890.1, 604/892.1, 604/93, 604/174, 604/175, 604/283, 604/131, 604/132, 604/133, 604/151, 604/153, 604/246, 604/247, 604/49, 604/52, 604/53US Class Current604/502CPC Class CodesA61M 5/14276 specially adapted for impla...
