Method for increasing distensibility in a gastric band
AssigneeCavu Medical, Inc.
InventorsMATTHEW G. FISHLER, LILIP LAU, MATTHEW J. PHILLIPS
Life of this patent
Estimating the term…
Abstract
A gastric band assembly has one or more bladders incorporated therein so that the distensibility of the gastric band assembly is increased. The distensibility relates to the relative strength with which the gastric band assembly with a bladder resists the application of additional band contact pressure. Distensibility is quantified by measuring the change in band contact dimension (e.g., diameter or area) versus the change in band contact pressure.
Claims37
A method of treating a patient having a gastric band assembly, comprising:
- providing a gastric band assembly having a gastric band and a balloon portion, the balloon portion being in fluid communication with a bladder;
- encircling stomach tissue with the balloon portion of the gastric band to form a band contact dimension;
- and
- measuring band contact dimension distensibility (D) as a rate of band contact dimension change (ΔSD) per unit change in band contact pressure (ΔSP) according to the formula D=ΔSD/ΔSP.
A method of treating a patient having a gastric band assembly, comprising:
- providing a gastric band assembly having a gastric band and a balloon portion, the balloon portion being in fluid communication with an assembly for increasing distensibility;
- encircling stomach tissue with the balloon portion of the gastric band to form a band contact dimension;
- enabling the band contact dimension to increase to a first distended size during a primary swallow peristalsis;
- and
- enabling the band contact dimension to increase to a second distended size during any secondary swallow peristalses, wherein any subsequent distended size is greater than any previous distended size.
A method of treating a patient having a gastric band assembly, comprising:
- providing a gastric band assembly having a gastric band and a balloon portion, the balloon portion being in fluid communication with an assembly for increasing distensibility;
- encircling stomach tissue with the balloon portion of the gastric band filled with a basal fill volume;
- enabling the fill volume within the balloon portion of the gastric band to decrease to a first post-swallow fill volume upon completion of a primary swallow peristalsis, wherein the first post-swallow fill volume is less than the basal fill volume.
A method of treating a patient having a gastric band assembly, comprising:
- providing a gastric band assembly having a gastric band and a balloon portion, the balloon portion being in fluid communication with an assembly for increasing distensibility;
- encircling stomach tissue with the balloon portion of the gastric band pressurized to a basal intra-band pressure magnitude;
- enabling the intra-band pressure to increase to a first peak transient magnitude during a primary swallow peristalsis;
- and
- enabling the intra-band pressure to increase to a subsequent peak transient magnitude during any subsequent swallow peristalses, wherein any subsequent peak transient magnitude is less than any previous peak transient magnitude.
A method of treating a patient having a gastric band assembly, comprising:
- providing a gastric band assembly having a gastric band and a balloon portion, the balloon portion being in fluid communication with an assembly for increasing distensibility;
- encircling stomach tissue with the balloon portion of the gastric band pressurized to a basal intra-band pressure magnitude;
- and
- enabling the basal intra-band pressure to establish a first post-transient magnitude upon completion of a primary swallow peristalsis, wherein the first post-transient intra-band pressure magnitude is greater than the basal intra-band pressure magnitude.
A method for determining band contact distensibility in a gastric band, comprising:
- measuring a rate of band contact dimensional change (ΔSD) per unit change in applied band contact pressure (ΔSP) according to the formula
- D
- =
- Δ
-
-
- SD
- Δ
-
-
- SP
- ,
- wherein band contact dimension (ΔSD) is band contact diameter;
- and
- the band contact diameter distensibility (D) is greater than 0.075 mm/mmHg.
A method for increasing band contact diameter distensibility in a gastric band, comprising:
- providing a gastric band in fluid communication with a bladder;
- increasing a band contact pressure by as much as 45 mmHg;
- and
- increasing a band contact diameter by as much as 6.0 mm, thereby increasing distensibility of the gastric band with a bladder compared to a gastric band without a bladder.
A method for increasing distensibility of a stoma formed by a medical device, comprising:
- providing a medical device configured to form a tissue stoma having a diameter in a mammalian body;
- providing a bladder in fluid communication with the medical device;
- measuring the rate of stoma diameter change (ΔSD) per unit change in an applied stoma contact pressure (ΔSP) according to the formula
- D
- =
- Δ
-
-
- SD
- Δ
-
-
- SP
- ,
- where D is the distensibility of the stoma.
A medical device for treating a patient, comprising:
- a gastric band assembly having a distensibility threshold greater than 0.075 mm/mmHg.
A medical device for treating a patient, comprising:
- a gastric band assembly having a distensibility threshold greater than 1.6 mm2/mmHg.
A gastric band assembly, comprising:
- a gastric band having a balloon, the balloon being in fluid communication with a bladder;
- and
- the balloon and bladder having a distensibility greater than a distensibility of the gastric band and balloon without the bladder.
A medical device assembly, comprising:
- a medical device assembly for restricting body tissue and having a first distensibility;
- a bladder connected to the medical device assembly to form a system for restricting body tissue and having a second distensibility;
- and
- the second distensibility being greater than the first distensibility.
A gastric band assembly, comprising:
- a gastric band having a balloon for encircling stomach tissue to form a stoma, the balloon containing a baseline fluid level;
- and
- increasing a band distensibility by enabling fluid to transiently exit the balloon.
A gastric band assembly, comprising:
- a gastric band having a balloon and having a first band distensibility;
- and
- a bladder in fluid communication with the balloon so that as fluid transfers from the balloon to the bladder, a second, increased effective band distensibility arises.
A method of treating a patient having a gastric band assembly, comprising:
- providing a gastric band assembly having a gastric band and a balloon portion, the balloon portion being in fluid communication with an assembly for increasing distensibility;
- encircling stomach tissue with the balloon portion of the gastric band to form a stoma dimension;
- and
- enabling the stoma dimension to increase to a first distended size.
Dependencies are inferred from the claim text.