Methods and devices for delivering opioid analgesics to wounds via a subdermal implant
First Claim
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1. A method of inducing analgesia, comprising delivering, for a period of time which is at least about 1 day, via a surgical suture, a therapeutically-effective amount of an opioid analgesic agent to peripheral opioid receptors, which amount is ineffective for the production of centrally-mediated analgesia.
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Abstract
An analgesic agent delivery system and method of treating postoperative pain comprising an analgesic agent such as morphine and an extended-release drug delivery device. The device may be placed in the vicinity of a wound and then provide an extended-release of the analgesic agent over a period of time, thereby controlling the pain emanating from the wound.
220 Citations
30 Claims
- 1. A method of inducing analgesia, comprising delivering, for a period of time which is at least about 1 day, via a surgical suture, a therapeutically-effective amount of an opioid analgesic agent to peripheral opioid receptors, which amount is ineffective for the production of centrally-mediated analgesia.
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13. A method of inducing analgesia, comprising delivering, for a period of time which is at least about 1 day, via an at least partially subdermal drug delivery device, a therapeutically-effective amount of an opioid analgesic agent to peripheral opioid receptors, which amount is ineffective for the production of centrally-mediated analgesia, wherein said device comprises staples or clips.
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14. A method of inducing analgesia, comprising delivering, for a period of time which is at least about 1 day, via an at least partially subdermal drug delivery device, a therapeutically-effective amount of an opioid analgesic agent to peripheral opioid receptors, which amount is ineffective for the production of centrally-mediated analgesia, wherein said device is selected from the group consisting of trocars, catheters, and tubes.
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15. A drug delivery device for subdermal administration comprising an opioid agonist selected from the group consisting of morphine, depomorphine, heroin, oxymorphone, levorphanol, methadone, meperidine, fentanyl, sufentanil, alfentanil, codeine, hydrocodone, drocode, oxycodone, and mixtures thereof, and a polymeric material, which device releases said opioid analgesic for a period of time which is at least about 1 day, and wherein a unit dosage of the device does not contain enough opioid analgesic agent to produce centrally-mediated analgesia.
- 16. A drug delivery device for subdermal administration comprising an opioid analgesic and a polymeric material, which device releases said opioid analgesic for a period of time which is at least about 1 day, wherein a unit dosage of the device does not contain enough opioid analgesic agent to produce centrally-mediated analgesia, and wherein said opioid analgesic comprises a partial opioid agonist.
- 18. A drug delivery device for subdermal administration comprising an opioid analgesic and a polymeric material, which device releases said opioid analgesic for a period of time which is at least about 1 day, wherein a unit dosage of the device does not contain enough opioid analgesic agent to produce centrally-mediated analgesia, and wherein said opioid analgesic comprises a mixed opioid agonist/antagonist.
- 20. A drug delivery device for subdermal administration comprising an opioid analgesic and a polymeric material, which device releases said opioid analgesic for a period of time which is at least about 1 day, wherein a unit dosage of the device does not contain enough opioid analgesic agent to produce centrally-mediated analgesia, and wherein said polymeric material comprises an absorbable material.
- 25. A drug delivery device for subdermal administration comprising an opioid analgesic selected from the group consisting of morphine, depomorphine, heroin, oxymorphone, levorphanol, methadone, meperidine, fentanyl, sufentanil, alfentanil, codeine, hydrocodone, drocode, oxycodone, and mixtures thereof, and a polymeric material, which device releases said opioid analgesic for a period of time which is at least about 1 day, wherein a unit dosage of the device does not contain enough opioid analgesic agent to produce centrally-mediated analgesia, and wherein a unit dosage is eguianalgesic to from about 0.01 mg morphine/4 hr/10 cm wound to about 8 mg morphine/4 hr/10 cm wound.
Specification