Occlusive cuff and implantable occlusive system comprising such a cuff
AssigneeUromems
InventorsHamid Lamraoui, Christopher Masri
Life of this patent
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Abstract
The invention relates to an occlusive cuff for selectively occluding an anatomical duct. The occlusive cuff has a band suited to surrounding an anatomical duct, provided with a closing device suited to maintaining the band wound upon itself over a determined length and an inflatable reservoir arranged on an inner face of the band. The cuff is characterised in that the inflatable reservoir extends over only a part of the length of the band, another part of the length defining a free inner surface of the band configured to form a bearing zone for the anatomical duct, such that when the band is maintained wound upon itself by the closing device, the inflatable reservoir is opposite said free inner surface of the band.
Claims15
A method for selectively occluding an anatomical duct, comprising:
- providing
- a band comprising a closing device and an unstretched inflatable reservoir on an inner face of the band, and
- an implantable housing containing a gas, a fluid recipient of variable volume and a pump, said pump comprising an actuator configured for adjusting the volume of the inflatable reservoir and an electronic module configured to control said actuator, and
- wherein the band is remote from the implantable housing, said inflatable reservoir being in fluid connection with the pump to selectively increase or decrease the volume of fluid in the inflatable reservoir, said inflatable reservoir extending over only a first part of a length of the band, a second part of said length defining a free inner surface of the band,
- winding the band around the anatomical duct so that the first part of the length of the band less than or equal to 75% of a length of the band in wound position and a first portion of the anatomical duct is supported by the free inner surface of the band, and a second portion of the anatomical duct opposite to the first portion is in contact with the inflatable reservoir,
- locking the closing device to maintain the band wound upon itself;
- and
- inflating the reservoir so as to compress the anatomical duct between the inflated reservoir and the free inner surface of the band.
A method for minimizing local mechanical stresses applied on tissue surrounding an anatomical duct during selective occlusion thereof, comprising:
- providing
- a band comprising a closing device and an unstretched inflatable reservoir arranged on only a part of an inner face of the band, and
- an implantable housing containing a gas, a fluid recipient of variable volume and a pump comprising an actuator configured for adjusting the volume of the inflatable reservoir and an electronic module configured to control said actuator,
- wherein the band is remote from the implantable housing, said inflatable reservoir being in fluid connection with the pump to selectively increase or decrease the volume of fluid in the inflatable reservoir,
- winding the band around the anatomical duct so that a first part of a length of the band less than or equal to 75% of a length of the band in wound position and a first portion of the anatomical duct is in contact with the inflatable reservoir and a second portion of the anatomical duct is in contact with a free inner surface of the band,
- locking the closing device to maintain the band wound upon itself;
- inflating the reservoir so as to compress the anatomical duct between the inflated reservoir and the free inner surface of the band,
- a length of the inflatable reservoir being chosen to eliminate pinch zones subject to local mechanical stresses in the anatomical duct.
A method for selectively occluding an anatomical duct, comprising:
- providing
- a band comprising a closing device and an unstretched inflatable reservoir on an inner face of the band, and
- an implantable housing containing a gas, a fluid recipient comprising a fixed part and a movable part, an actuator mechanically coupled with the movable part to displace said movable part linearly with respect to the fixed part to selectively increase or decrease a volume of the fluid in the recipient and an electronic module configured to control said actuator,
- wherein the band is remote from the implantable housing, the inflatable reservoir being connected to the fluid recipient by a tubing to transfer fluid between the fluid recipient and the inflatable reservoir upon displacement of the movable part of the fluid recipient, said inflatable reservoir extending over only a first part of a length of the band, a second part of said length defining a free inner surface of the band,
- winding the band around the anatomical duct so that the first part of the length of the band less than or equal to 75% of a length of the band in wound position and a first portion of the anatomical duct is supported by the free inner surface of the band, and a second portion of the anatomical duct opposite to the first portion is in contact with the inflatable reservoir,
- locking the closing device to maintain the band wound upon itself;
- and
- controlling the actuator to inflate the reservoir so as to compress the anatomical duct between the inflated reservoir and the free inner surface of the band.
Dependencies are inferred from the claim text.