US 12,678,195 B2Granted

Respiratory obstruction removal device

AssigneeDcstar Inc

InventorsLigui He, David Luo

Life of this patent

Estimating the term…

Loading patent…

Abstract

A respiratory obstruction removal device, which includes a face mask and a negative pressure generating device. The negative pressure generating device includes a grip section, an extendable tubular body, and an annular interface, connected in sequence. The extendable tubular body has a variable volume cavity. The face mask includes an upper part that fits with the annular interface, a lower part that corresponds to a face of a patient, and a connecting body that links the upper and lower parts. The respiratory obstruction removal device also includes a first one-way valve located on the annular interface and a second one-way valve for unidirectional expulsion of gas to the outside. The grip portion and the extendable tubular body are detachably connected. This design is efficient and easy to carry and transport, suitable for emergency use in different scenarios.

Claims17

Dependent claims

A respiratory obstruction removal device, consisting of:

a negative pressure generating device, and
a flexible annular cushion;
wherein the negative pressure generating device comprises:
an extendable tubular body made of elastic material, comprising a top, bottom, and a variable-volume cavity with a hollow structure in a central portion of the extendable tubular body;
and
an annular interface located at the bottom of the extendable tubular body;
the respiratory obstruction removal device further comprising:
a first one-way valve provided within a channel that runs through the annular interface, the flexible annular cushion, and the extendable tubular body, wherein the channel extends between the extendable tubular body and the flexible annular cushion, and wherein an outlet end of the first one-way valve is in fluid communication with an interior of the extendable tubular body, and an inlet end of the first one-way valve is in fluid communication with the flexible annular cushion;
a second one-way valve provided within the negative pressure generating device, wherein an outlet end of the second one-way valve is in fluid communication with an external environment, and an inlet end of the second one-way valve is in fluid communication with the interior of the extendable tubular body,
wherein, when the extendable tubular body is compressed, the first one-way valve is closed to prevent gas from flowing from the extendable tubular body into the flexible annular cushion, and the second one-way valve is configured to allow air to flow from the extendable tubular body to the external environment;
wherein, when the extendable tubular body expands, the first one-way valve is open to allow gas to flow from the flexible annular cushion into the extendable tubular body, and the second one-way valve is closed to prevent gas from flowing out of the extendable tubular body;
wherein the flexible annular cushion is connected via a connecting body along an inner wall of the annular interface, and
wherein the negative pressure generating device comprises a grip portion configured to be handheld and detachable from the extendible tubular body.

10 more elements

A respiratory obstruction removal device, consisting of:

a negative pressure generating device, and
a flexible annular cushion;
wherein the negative pressure generating device comprises:
an extendable tubular body made of elastic material, comprising a top, bottom, and a variable-volume cavity with a hollow structure in a central portion of the extendable tubular body;
an annular interface located at the bottom of the extendable tubular body;
the respiratory obstruction removal device further comprising:
a first one-way valve provided within a channel that runs through the annular interface, the flexible annular cushion, and the extendable tubular body, wherein an outlet end of the first one-way valve is in fluid communication with an interior of the extendable tubular body, and an inlet end of the first one-way valve is in fluid communication with the flexible annular cushion;
a second one-way valve provided within the negative pressure generating device, wherein an outlet end of the second one-way valve is in fluid communication with an external environment, and an inlet end of the second one-way valve is in fluid communication with the interior of the extendable tubular body, and
wherein, when the extendable tubular body is compressed, the first one-way valve is closed to prevent gas from flowing from the extendable tubular body into the flexible annular cushion, and the second one-way valve is configured to allow air to flow from the extendable tubular body to the external environment;
wherein, when the extendable tubular body expands, the first one-way valve opens to allow gas to flow from the flexible annular cushion into the extendable tubular body, and the second one-way valve closes to prevent gas from flowing out of the extendable tubular body, with the first one-way valve and second one-way valve being arranged in opposite flow directions;
wherein the flexible annular cushion is connected via a connecting body along an inner wall of the annular interface, and
wherein the negative pressure generating device comprises a grip portion configured to be handheld and detachable from the extendible tubular body.

9 more elements

A respiratory obstruction removal device, consisting of:

a negative pressure generating device, and
a flexible annular cushion;
wherein the negative pressure generating device comprises:
an extendable tubular body made of elastic material, comprising a top, bottom, and a variable-volume cavity with a hollow structure in a central portion of the extendable tubular body;
an annular interface located at the bottom of the extendable tubular body;
the respiratory obstruction removal device further comprising:
a first one-way valve provided within a channel that runs through the annular interface, the flexible annular cushion, and the extendable tubular body, wherein the channel extends between the extendable tubular body and the flexible annular cushion, wherein an outlet end of the first one-way valve is in fluid communication with an interior of the extendable tubular body, and an inlet end of the first one-way valve is in fluid communication with the flexible annular cushion;
a second one-way valve provided within the negative pressure generating device, wherein an outlet end of the second one-way valve is in fluid communication with an external environment, and an inlet end of the second one-way valve is in fluid communication with the interior of the extendable tubular body,
wherein, when the extendable tubular body is compressed, the second one-way valve is configured to allow air to flow from the extendable tubular body to the external environment;
wherein, when the extendable tubular body expands, the second one-way valve closes to prevent air from escaping the extendable tubular body and to block external air from entering, thereby maintaining a negative pressure environment within the extendable tubular body;
wherein the flexible annular cushion is connected via a connecting body along an inner wall of the annular interface, and
wherein the negative pressure generating device comprises a grip portion configured to be handheld and detachable from the extendible tubular body.

9 more elements

A respiratory obstruction removal device, consisting of:

a negative pressure generating device, and
a flexible annular cushion;
wherein the negative pressure generating device comprises:
an extendable tubular body made of elastic material, including a top, a bottom, and a variable-volume cavity with a hollow structure at a middle portion of the extendable tubular body;
an annular interface located at the bottom of the extendable tubular body;
the respiratory obstruction removal device further comprising:
a first one-way valve provided within a channel that runs through the annular interface, the flexible annular cushion, and the extendable tubular body, wherein the channel extends between the extendable tubular body and the flexible annular cushion, and wherein an outlet end of the first one-way valve is in fluid communication with an interior of the extendable tubular body, and an inlet end of the first one-way valve is in fluid communication with the flexible annular cushion;
a second one-way valve provided within the negative pressure generating device, wherein an outlet end of the second one-way valve is in fluid communication with an external environment, and an inlet end of the second one-way valve is in fluid communication with the interior of the extendable tubular body,
wherein, when the extendable tubular body is compressed, the first one-way valve closes to prevent air from flowing from the extendable tubular body to the external environment;
wherein, when the extendable tubular body expands, the first one-way valve opens to allow air to enter the extendable tubular body;
wherein the flexible annular cushion is connected via a connecting body along an inner wall of the annular interface, and
wherein the negative pressure generating device comprises a grip portion configured to be handheld and detachable from the extendible tubular body.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/299,065Filed 13 Aug 2025 · continuation
Priority: 15 Nov 2023
Published: US 2025/0169855 A14 Dec 2025
Granted: 14 Jul 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61B 17/50
Surgical instruments, devices or methods: instruments , other than pincettes or toothpicks, for removing foreign bodies from the human body
A61M 1/82
Suction pumps: membrane pumps, e.g. bulbs
A61M 1/962
Suction control thereof: having pumping means on the suction site, e.g. miniature pump on dressing or dressing capable of exerting suction
A61M 16/06
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators ; Tracheal tubes: respiratory or anaesthetic masks

Family

Application18/509,912Parent of this continuation · filed 15 Nov 2023
Application19/036,935Parent of this continuation · filed 24 Jan 2025
US 12,239,343 B1Parent of this continuation · filed 4 Mar 2025
US 2025/0366888 A1Pre-grant publication · published 4 Dec 2025
US 2025/0169855 A1Published application
US 12,678,195 B2This patent

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