US 2026/0248995 A1Published application

Bile drainage and reinfusion device

AssigneeNanjing Drum Tower Hospital

InventorsYanping CAO, Qian WANG, Hua YANG, Juan TIAN, Xiu WEN

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Abstract

A bile drainage and reinfusion device includes a nasobiliary tube, a drainage bag, a sealed cylinder, a heating mechanism, a filtering mechanism, and a reinfusion tube, wherein the drainage bag is disposed at an output end of the nasobiliary tube, the sealed cylinder is connected to an output end of the drainage bag, the heating mechanism and the filtering mechanism are disposed inside the sealed cylinder to heat and filter drained bile, and the reinfusion tube is connected to an output end of the sealed cylinder to reinfuse the heated and filtered bile into a patient. The drained and reinfused bile is heated and filtered by a heating mechanism and a filtering mechanism, so as to remove and intercept impurities such as tissue fragments in bile, prevent the impurities from entering the patient, and prevent tubing blockage caused by bile viscosity.

Claims6

Dependent claims

A bile drainage and reinfusion device, comprising a nasobiliary tube, a drainage bag, a sealed cylinder, a heating mechanism, a filtering mechanism, and a reinfusion tube, wherein the drainage bag is disposed at an output end of the nasobiliary tube, the sealed cylinder is connected to an output end of the drainage bag, the heating mechanism and the filtering mechanism are disposed inside the sealed cylinder to heat and filter drained bile, and the reinfusion tube is connected to an output end of the sealed cylinder to reinfuse the heated and filtered bile into a patient;

the filtering mechanism comprises a first disc, a second disc, and a plurality of filter tubes, wherein the first disc and the second disc are spaced apart inside an input end of the sealed cylinder, the plurality of filter tubes are disposed in a circumferential array on the first disc and the second disc, and the filter tubes on the first disc and the second disc filter the bile entering the first disc and the second disc;
and
the filter tubes comprise coarse filter tubes and fine filter tubes, wherein the coarse filter tubes and the fine filter tubes are both disposed in a circumferential array on the first disc and the second disc, the coarse filter tubes on the first disc are in communication with tube ports of the fine filter tubes on the second disc, and the fine filter tubes on the first disc are in communication with tube ports of the coarse filter tubes on the second disc.

A bile drainage and reinfusion device, comprising:

a nasobiliary tube, a drainage bag, a heating mechanism, a filtering mechanism, a reinfusion tube, and a circulation tube, wherein the drainage bag is disposed at an output end of the nasobiliary tube, the filtering mechanism is connected to an output end of the drainage bag, the heating mechanism is connected to an output end of the filtering mechanism and is configured to heat filtered bile, the reinfusion tube is disposed at an output end of the heating mechanism, the circulation tube is disposed at a tail end of the filtering mechanism, and an output end of the circulation tube is in communication with an input end of the filtering mechanism;
the heating mechanism comprises a plurality of electric heating rods, an outer cylinder, and an inner cylinder, wherein the outer cylinder is connected to the output end of the filtering mechanism, the inner cylinder is disposed inside the outer cylinder, and the plurality of electric heating rods are disposed in a circumferential array in a gap composed of the outer cylinder and the inner cylinder;
and
the heating mechanism further comprises a support base, a rotating barrel, and a plurality of arc-shaped plates, wherein the support base is disposed inside the inner cylinder, the rotating barrel is movably sleeved on an outer periphery of the support base, and the plurality of arc-shaped plates are disposed in a circumferential array on an outer periphery of the rotating barrel.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 19/575,985Filed 24 Mar 2026
Priority: CN 202510224873.927 Feb 2025
Published: 27 Aug 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

A61M 1/77
Suction drainage systems: suction-irrigation systems
A61M 1/60
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems:…
A61M 1/79
Suction drainage systems: filters for solid matter
A61M 1/84
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems:…