A sustained release component of a drug delivery device (102) for releasing a drug from a reservoir (104) over a period of time includes an inlet (106) for fluid interconnection with the reservoir and a flow regulating arrangement (100) defining at least part of a flow path from the inlet to at least one outlet (108). The flow regulating arrangement includes a quantity of biodegradable material (110) deployed within and/or adjacent to the flow path so that decomposition of the biodegradable material results in expansion of fluid flow passageways that were initially restricted by the biodegradable material and/or opening of fluid flow passageways that were initially blocked by the biodegradable material.
A61K 9/00 - Medicinal preparations characterised by special physical form
A61M 5/00 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests
A61M 5/14 - Infusion devices, e.g. infusing by gravityBlood infusionAccessories therefor
A61M 5/148 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons flexible
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
2.
Implantable drug delivery device and a system and method for deployment of such devices
A drug delivery device is formed from an elastic sleeve deployed around a core, with first and second edge portions inwardly inverted. When a fluid is introduced between the core and the sleeve, the sleeve inflates to form a reservoir with a pressure of the fluid pressing the inwardly-inverted extremities portions against the core. The device is preferably anchored by providing a stem of conformable material which is depressed by pressure applied by adjacent edges of a layer of tissue to achieve tissue-wedged anchoring of the device.
A61M 5/148 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons flexible
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A61M 5/152 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons flexible pressurised by contraction of elastic reservoirs
A drug delivery device is formed from an elastic sleeve deployed around a core, with first and second edge portions inwardly inverted. When a fluid is introduced between the core and the sleeve, the sleeve inflates to form a reservoir with a pressure of the fluid pressing the inwardly-inverted extremities portions against the core. The device is preferably anchored by providing a stem of conformable material which is depressed by pressure applied by adjacent edges of a layer of tissue to achieve tissue-wedged anchoring of the device.
A61M 5/152 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons flexible pressurised by contraction of elastic reservoirs
4.
Miniature implanted drug delivery devices and inserter systems for introducing such devices
a), and is preferably filled with a liquid drug after deployment via a filling needle (24, 222) extending within the channel of the hollow needle (12, 212).
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
A system (10, 200) and corresponding method for introducing a drug delivery device (18, 218) through at least part of a biological barrier starts with the drug delivery device (18, 218) deployed within a channel of a hollow needle (12, 212). The hollow needle is inserted into the biological barrier and the drug delivery device is pushed forward by a suitable plunger. The drug delivery device is preferably anchored to the biological barrier through a radially expanding retention arrangement (36, 36', 36a), and is preferably filled with a liquid drug after deployment via a filling needle (24, 222) extending within the channel of the hollow needle (12, 212).
A drug delivery device includes a first portion, formed primarily from elastomeric material, and a closure portion, cooperating with an opening of the first portion so as to complete an inflatable drug reservoir. The closure portion extends into the first portion inwards from the opening, defining at least one region of overlap between the first portion and the closure portion. The first portion and the closure portion define an outlet flow path for releasing a drug from the drug reservoir, with at least part of the outlet flow path passing between the first portion and the closure portion in the region of overlap. The region of overlap is disposed so as to be acted upon by a pressure within the drug reservoir thereby changing a flow impedance of the outlet flow path to provide an at least partially pressure compensated flow regulating mechanism.
A drug delivery device includes a first portion, formed primarily from elastomeric material, and a closure portion, cooperating with an opening of the first portion so as to complete an inflatable drug reservoir. The closure portion extends into the first portion inwards from the opening, defining at least one region of overlap between the first portion and the closure portion. The first portion and the closure portion define an outlet flow path for releasing a drug from the drug reservoir, with at least part of the outlet flow path passing between the first portion and the closure portion in the region of overlap. The region of overlap is disposed so as to be acted upon by a pressure within the drug reservoir thereby changing a flow impedance of the outlet flow path to provide an at least partially pressure compensated flow regulating mechanism.
A61M 5/00 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests
A61K 9/22 - Sustained or differential release type
A drug delivery device is formed from an elastomeric element, including an inflatable drug reservoir and a flexible sleeve, and an insert inserted within the flexible sleeve. The insert cooperates with the flexible sleeve to form an at least partially pressure compensated flow regulating mechanism.
patents
