Absorber canister and medical device

Patent metadata

Field	Value
Publication number	US-2025186733-A1
Application number	US-202418968491-A
Country	US
Kind code	A1
Filing date	Dec 4, 2024
Priority date	Dec 8, 2023
Publication date	Jun 12, 2025
Grant date	—

Abstract

Embodiments of the present application provide an absorber canister, the absorber canister comprising: a canister body including an accommodating chamber for accommodating an absorbent, wherein an opening is provided at an upper end of the canister body; a canister lid connected to the canister body, wherein the canister lid, in a closed state, closes the opening; a gas passage including the accommodating chamber, wherein a gas flow can flow through the absorbent in the accommodating chamber via the gas passage; and an elastic component disposed in the accommodating chamber, the elastic component being deformable by an external force to increase the volume of the accommodating chamber.

First claim

1 . An absorber canister, comprising:
a canister body including an accommodating chamber for accommodating an absorbent, wherein an opening is provided at an upper end of the canister body; a canister lid connected to the canister body, wherein the canister lid, in a closed state, closes the opening; a gas passage including the accommodating chamber, wherein a gas flow can flow through the absorbent in the accommodating chamber via the gas passage; and an elastic component disposed in the accommodating chamber, wherein the elastic component is deformable by an external force to increase the volume of the accommodating chamber.

2 . The absorber canister according to claim 1 , wherein the canister body is further provided with an indicator line, the indicator line being used to indicate the height of the absorbent.

3 . The absorber canister according to claim 2 , wherein when the height of the absorbent is higher than the indicator line by a certain distance, the canister lid presses the absorbent in the closed state, to generate the external force.

4 . The absorber canister according to claim 1 , wherein the gas passage includes a first gas hole, and the first gas hole is provided on the canister lid.

5 . The absorber canister according to claim 4 , wherein the absorber canister further includes a handle, the handle includes an internal passage and a second gas hole, and a lower end of the internal passage is in communication with a lower end of the accommodating chamber; and the first gas hole, the accommodating chamber, the internal passage, and the second gas hole communicate in sequence to form the gas passage.

6 . The absorber canister according to claim 1 , wherein a bottom mesh is provided at the bottom of the accommodating chamber, the bottom mesh being configured to allow the gas flow to pass through and prevent the absorbent from passing through.

7 . The absorber canister according to claim 6 , wherein the elastic component includes a bottom elastic component disposed between underneath the bottom mesh and the bottom of the accommodating chamber, and the bottom elastic component is compressed by the external force, so as to lower the bottom mesh and increase the volume of the accommodating chamber.

8 . The absorber canister according to claim 7 , wherein a rigid support component is further disposed under the bottom mesh, and the length of the rigid support component is less than the length of the bottom elastic component, and wherein when the bottom elastic component is not compressed, the rigid support component is not in contact with a bottom surface of the canister body; and when the bottom elastic component is compressed by a certain distance, the rigid support component contacts the bottom surface of the canister body to prevent the bottom elastic component from being further compressed.

9 . The absorber canister according to claim 7 , wherein the bottom elastic component includes one or more springs or the bottom elastic component includes one or more plastic members or elastic members, and the plastic members or elastic members have a bent structure.

10 . The absorber canister according to claim 7 , wherein one or more guide portions are further provided in the canister body, the guide portions guiding the movement of the bottom mesh in the vertical direction.

11 . The absorber canister according to claim 6 , wherein the bottom mesh includes a wall that fits an inner surface of the canister body, the shape of the wall matches the shape of the inner surface of the canister body, and the wall extends upward by a certain distance to block a gap between the internal passage and the inner surface of the canister body when the bottom mesh is lowered down.

12 . The absorber canister according to claim 1 , wherein a top mesh is provided at the bottom of the canister lid, the top mesh being configured to allow the gas flow to pass through and prevent the absorbent from passing through.

13 . The absorber canister according to claim 12 , wherein the elastic component includes a top elastic component disposed between the canister lid and the top mesh, and the top elastic component is compressed by the external force to raise the top mesh, so as to increase the volume of the accommodating chamber.

14 . The absorber canister according to claim 13 , wherein the canister lid is further provided with one or more guide pins, and the guide pins pass through the top mesh to guide the movement of the top mesh in the vertical direction.

15 . The absorber canister according to claim 13 , wherein the top elastic component includes one or more springs or the top elastic component includes one or more elastic members or plastic members.

Assignees

• Ge Prec Healthcare Llc

Inventors

• Fang Hui
• Liu Yiqiang

Classifications

• A61M16/22 Primary

  Carbon dioxide-absorbing devices {; Other means for removing carbon dioxide}(cartridges with absorbing substances for respiratory apparatus A62B19/00) · CPC title

• A61M2205/583

  by visual feedback · CPC title

• A61M16/0891

  Closed circuit, e.g. for anaesthesia · CPC title

• A61M16/0045

  Means for re-breathing exhaled gases, e.g. for hyperventilation treatment · CPC title

• A61M16/01

  specially adapted for anaesthetising {(A61M16/104, A61M16/18 take precedence)} · CPC title