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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0397797 (1995-03-03) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 357 인용 특허 : 0 |
An improved occlusion detector is provided in a medication infusion pump to monitor medication delivery to a patient, and to provide an early alarm in the event of medication nondelivery. The detector comprises a force sensor and related control circuit for reading and comparing the pressure applied
An improved occlusion detector is provided in a medication infusion pump to monitor medication delivery to a patient, and to provide an early alarm in the event of medication nondelivery. The detector comprises a force sensor and related control circuit for reading and comparing the pressure applied to the medication at the time of pump operation to administer a dose to the patient, with the same pressure at a later point in time preceding the next dose. If the difference between the pressure readings is less than a predetermined value, an occlusion of the medication delivery line is indicated and an alarm is activated.
A rapid response occlusion detector for use with a medication infusion pump having a syringe defining a chamber with medication therein, infusion tubing for connecting the medication chamber to a patient, a piston plunger for advancement into the medication chamber to administer a dose of the medica
A rapid response occlusion detector for use with a medication infusion pump having a syringe defining a chamber with medication therein, infusion tubing for connecting the medication chamber to a patient, a piston plunger for advancement into the medication chamber to administer a dose of the medication to the patient, and drive means for controllably advancing the piston plunger into the medication chamber to administer a succession of discrete doses of the medication to the patient, said occlusion detector comprising: force sensor means for monitoring and for providing output signals representative of the pressure applied to the medication within the medication chamber; control circuit means connected to said force sensor means for receiving said output signals, said control circuit means including comparator means for comparing the difference between a first output signal corresponding to a first first pressure substantially at a point in time corresponding with advancement of the syringe plunger to administer a medication dose and a second output signal corresponding to a second pressure at a later point in time substantially after said plunger advancement but preceding the next dose; and alarm means activated by said control circuit means when the difference between said first and second output signals is less than a predetermined value.
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