US 9,517,080 B2Granted

Calculus retrieving/removing device and method

AssigneeTerumo Kabushiki Kaisha

InventorKei Honda

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Abstract

A method of removing/retrieving calculus in a renal pelvis includes moving a renal cover part along a ureter toward the renal pelvis, introducing the renal cover part into the renal pelvis, positioning the renal cover part in the renal pelvis so that the renal cover part covers one part of the renal pelvis, while an other part of the renal pelvis is not covered by the renal cover part, introducing fluid into the other part of the renal pelvis, while the one part of the renal pelvis is covered by the renal cover part, to cause the calculus in the other part of the renal pelvis to be washed-out of the renal pelvis, and moving the renal cover part out of the renal pelvis and into the ureter.

Claims20

Dependent claims

A method of removing calculus in a renal pelvis, the method comprising:

moving an elongated device along a ureteral lumen of a ureter toward the renal pelvis, the elongated device including a renal cover part and an irrigation port, the renal cover part configured to expand to only one direction in a radial direction of the elongated device, and the irrigation port placed distal to the renal cover part;
introducing both the renal cover part and the irrigation port into the renal pelvis;
deploying the renal cover part to cover one part of the renal pelvis, while an other part of the renal pelvis is not covered by the renal cover part;
washing the other part of the renal pelvis that is not be covered by the renal cover part by discharging fluid from the irrigation port to move the calculus in the renal pelvis;
and
releasing the renal cover part and withdrawing the elongated device, together with the renal cover part, from the renal pelvis.

3 more elements

A method of removing calculus in a renal pelvis, the method comprising:

moving a renal cover part along a ureter toward the renal pelvis;
introducing the renal cover part into the renal pelvis;
positioning the renal cover part in the renal pelvis so that the renal cover part covers one part of the renal pelvis, while an other part of the renal pelvis is not covered by the renal cover part;
introducing a fluid into the other part of the renal pelvis, while the one part of the renal pelvis is covered by the renal cover part, to cause the calculus in the other part of the renal pelvis to be washed-out of the renal pelvis, and wherein the fluid is introduced distally of the one part of the renal covered by the renal pelvis cover part;
and
moving the renal cover part out of the renal pelvis and into the ureter.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/222,021Filed 21 Mar 2014
Published: US 2015/0265298 A124 Sep 2015
Granted: 13 Dec 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

A61B 17/22
Surgical instruments, devices or methods: implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out…
A61B 2017/22067
Functions of balloons: blocking; Occlusion
A61B 2017/22069
Functions of balloons: immobilising; Stabilising
A61B 2017/22071
Functions of balloons: steering

Family

US 2015/0265298 A1Pre-grant publication · published 24 Sep 2015
US 9,517,080 B2This patent

From the US filing history. Foreign family members aren’t listed.

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