CN107019820B - Negative pressure automatic release device and negative pressure drainage device - Google Patents

Negative pressure automatic release device and negative pressure drainage device Download PDF

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Publication number
CN107019820B
CN107019820B CN201710273987.8A CN201710273987A CN107019820B CN 107019820 B CN107019820 B CN 107019820B CN 201710273987 A CN201710273987 A CN 201710273987A CN 107019820 B CN107019820 B CN 107019820B
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negative pressure
hole
pressure release
release
sleeve
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CN201710273987.8A
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CN107019820A (en
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殷青
周海燕
金跃辉
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Shanghai Chester Medical Devices Co ltd
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Shanghai Chester Medical Devices Co ltd
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    • A61M1/0023—
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

The invention discloses a negative pressure automatic release device and a negative pressure drainage device. The negative pressure automatic release device comprises a negative pressure release sleeve, wherein one end of the negative pressure release sleeve is provided with a hole connected with the atmosphere P0, and the other end of the negative pressure release sleeve is provided with a negative pressure hole communicated with the negative pressure container; one end of the negative pressure release sleeve, which is close to a hole connected with the atmosphere P0, is provided with a negative pressure release rubber pad, the inner end of the negative pressure release rubber pad is provided with a negative pressure release spring pad, and an elastic element is arranged between the inner end of the negative pressure release spring pad and the position, which is close to the hole, in the negative pressure release sleeve; the side wall of the negative pressure release sleeve is provided with a negative pressure release hole. The negative pressure drainage device comprises a hydrops cavity connected with the pleural cavity of the patient through a drainage tube; the negative pressure drainage device is provided with the negative pressure automatic release device on the shell of the effusion cavity; the hole of the negative pressure automatic release device is contacted with the atmosphere P0, and the negative pressure hole of the negative pressure automatic release device is communicated with the effusion cavity. The negative pressure automatic release device can instantly release negative pressure higher than a certain value, and avoid the injury of the patient caused by the overhigh central negative pressure.

Description

Negative pressure automatic release device and negative pressure drainage device
Technical Field
The invention relates to a negative pressure release mechanism and a medical instrument with the same, in particular to a negative pressure automatic release device and a negative pressure drainage device.
Background
The pleural cavity of the human body is a closed cavity, and is in a negative pressure state under the health condition, so that organs in the chest cavity keep normal functions. The pleural cavity injury and rupture caused by various reasons such as trauma, car accident, compound chest injury, pneumothorax operation and the like can lead gas or liquid to enter into the pleural cavity, so that the original negative pressure is changed into positive pressure, and the pulmonary tension and the displacement of the longitudinal diaphragm of the heart are caused to cause cardiopulmonary failure. When in treatment, the drainage device is used for draining the gas or liquid entering the pleural cavity to restore the original negative pressure state and the normal function of the heart and lung of the pleural cavity.
Typically, during chest drainage, a negative pressure source is required to be connected to the negative pressure source connector of the drainage device to provide the negative pressure required by the chest drainage device. Normally, the negative pressure entering the device should be in a pressure range acceptable to humans. However, because of the control problem of the negative pressure source, the central negative pressure is sometimes too great, and the negative pressure entering the organ of the patient is higher than the bearing value of the human body, which brings pain and injury to the patient.
Disclosure of Invention
The invention aims to provide a negative pressure automatic release device and a negative pressure drainage device, which can instantly release negative pressure higher than a certain value in order to overcome the defects in the prior art, and can instantly release excessive negative pressure when being applied to the negative pressure drainage device, so as to avoid injury to a patient caused by excessive central negative pressure.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an automatic negative pressure release device is characterized in that: the device comprises a negative pressure release sleeve, wherein one end of the negative pressure release sleeve is provided with a hole connected with the atmosphere P0, and the other end of the negative pressure release sleeve is provided with a negative pressure hole communicated with a negative pressure container; a negative pressure release rubber pad is arranged at one end, close to a hole connected with the atmosphere P0, of the negative pressure release sleeve, a negative pressure release spring pad is arranged at the inner end of the negative pressure release rubber pad, and an elastic element is arranged between the inner end of the negative pressure release spring pad and the position, close to the hole, of the negative pressure release sleeve; the side wall of the negative pressure release sleeve is provided with a negative pressure release hole.
The negative pressure automatic release device is characterized in that: the elastic element is a spring.
The negative pressure automatic release device is characterized in that: the negative pressure release sleeve is provided with two communicated chambers, and the inner diameter of a second chamber close to one side of the negative pressure hole is smaller than that of a first chamber close to the hole; the negative pressure release rubber pad and the negative pressure release spring pad are arranged in the first chamber, and the negative pressure release hole is also arranged on the side wall of the first chamber.
A negative pressure drainage device comprises a hydrops cavity connected with a pleural cavity of a patient through a drainage tube; the method is characterized in that: the negative pressure drainage device is provided with the negative pressure automatic release device on the shell of the effusion cavity; the hole of the negative pressure automatic release device is contacted with the atmosphere P0, and the negative pressure hole of the negative pressure automatic release device is communicated with the effusion cavity.
By adopting the structure, compared with the prior art, the invention has the following advantages:
when the automatic negative pressure releasing device is used in the negative pressure drainage device, the negative pressure in the negative pressure releasing sleeve is in a normal state (for example, -25)cmH 2 O) at this time, the negative pressure release rubber pad is in a relatively balanced and stable position after compressing the elastic element in the negative pressure release sleeve, where the negative pressure release rubber pad is just in the position of the negative pressure release hole and blocks the negative pressure release hole. When the negative pressure in the negative pressure release sleeve is instantaneously larger than the normal value, the position of the negative pressure release rubber pad is away from the negative pressure release hole, and the excessive negative pressure in the negative pressure release sleeve (namely the negative pressure drainage device) is instantaneously released. After the excessive negative pressure is applied, the negative pressure release hole is blocked by the negative pressure release rubber pad at the balance position when the negative pressure release rubber pad can reach the normal state.
Therefore, when the central negative pressure is excessively high instantaneously, the device can instantaneously release the excessively high negative pressure, so that the damage to a patient caused by the excessively high central negative pressure is avoided.
Drawings
Fig. 1 is an exploded perspective view of the present invention.
Fig. 2 is a sectional view of the combination of the present invention.
Detailed Description
Referring to fig. 1 and 2, the present invention discloses an automatic negative pressure release device. As shown in the figure: the negative pressure release sleeve comprises a negative pressure release sleeve 1, wherein one end of the negative pressure release sleeve 1 is provided with a hole 11 connected with the atmosphere P0, and the other end of the negative pressure release sleeve is provided with a negative pressure hole 12 communicated with a negative pressure container; a negative pressure release rubber pad 2 is arranged at one end, close to the negative pressure hole 11, in the negative pressure release sleeve 1, a negative pressure release spring pad 3 is arranged at the inner end of the negative pressure release rubber pad 2, and an elastic element 4 is arranged between the inner end of the negative pressure release spring pad 3 and the position, close to the hole 12, in the negative pressure release sleeve 1; the side wall of the negative pressure release sleeve 1 is provided with a negative pressure release hole 13.
The device can be applied to a negative pressure drainage device. The negative pressure drainage device comprises a hydrops cavity connected with the pleural cavity of a patient through a drainage tube; the negative pressure drainage device is provided with the negative pressure automatic release device on the shell of the effusion cavity; the hole 11 of the negative pressure automatic release device is in contact with the atmosphere P0, and the negative pressure hole 12 of the hole 11 of the negative pressure automatic release device is communicated with the inner part of the effusion cavity.
When the negative pressure drainage device is used, when the negative pressure release sleeve 1 is in negative pressurePressing in normal condition (e.g. 25 cmH) 2 O), at this time, the negative pressure release rubber pad 2 is in a relatively balanced and stable position after the compression of the elastic member 4 in the negative pressure release sleeve 1, where the negative pressure release rubber pad 2 is located right at the position of the negative pressure release hole 13 and blocks the negative pressure release hole 13. When the negative pressure in the negative pressure release sleeve 1 is instantaneously larger than the normal value, the position of the negative pressure release rubber pad 2 is separated from the negative pressure release hole 13, and the excessive negative pressure in the negative pressure release sleeve 1 (namely the negative pressure drainage device) is instantaneously released. After the excessive negative pressure is applied, when the negative pressure can reach the normal state, the negative pressure release rubber pad 2 is still at the balance position to block the negative pressure release hole 13.
Preferably, the elastic element 4 is a spring, and the number of turns, the interval height, the wire diameter, the cross-sectional area and other parameters of the spring can be selected according to the set value of the normal negative pressure.
As a preferable structure, the negative pressure release sleeve 1 has two chambers communicated, and the inner diameter of the second chamber near the side of the negative pressure hole 12 is smaller than the inner diameter of the first chamber near the hole 11; the main body portion of the spring may be restrained by a second chamber having a smaller inner diameter. The negative pressure release rubber pad 2 and the negative pressure release spring pad 3 are both arranged in the first chamber, and the negative pressure release hole 13 is also arranged on the side wall of the first chamber. Although the inner diameter of the first chamber is relatively large, the length thereof may be set relatively short so as to correspond to the negative pressure release rubber pad 2 which does not require a large moving stroke.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.

Claims (4)

1. An automatic negative pressure release device is characterized in that: the device comprises a negative pressure release sleeve (1), wherein one end of the negative pressure release sleeve (1) is provided with a hole (11) connected with the atmosphere P0, and the other end of the negative pressure release sleeve is provided with a negative pressure hole (12) communicated with a negative pressure container; one end, close to a hole (11) connected with the atmosphere P0, of the negative pressure release sleeve (1) is provided with a negative pressure release rubber pad (2), the inner end of the negative pressure release rubber pad (2) is provided with a negative pressure release spring pad (3), and an elastic element (4) is arranged between the inner end of the negative pressure release spring pad (3) and a position, close to the hole (12), of the negative pressure release sleeve (1); the side wall of the negative pressure release sleeve (1) is provided with a negative pressure release hole (13).
2. The negative pressure automatic release device according to claim 1, wherein: the elastic element (4) is a spring.
3. The negative pressure automatic release device according to claim 1, wherein: the negative pressure release sleeve (1) is provided with two communicated chambers, and the inner diameter of a second chamber close to one side of the negative pressure hole (12) is smaller than that of a first chamber close to the hole (11); the negative pressure release rubber pad (2) and the negative pressure release spring pad (3) are arranged in the first chamber, and the negative pressure release hole (13) is also arranged on the side wall of the first chamber.
4. A negative pressure drainage device comprises a hydrops cavity connected with a pleural cavity of a patient through a drainage tube; the method is characterized in that: the negative pressure drainage device is provided with the negative pressure automatic release device as claimed in claim 1, 2 or 3 on the shell of the effusion cavity; the hole (11) of the negative pressure automatic release device is contacted with the atmosphere P0, and the negative pressure hole (12) of the hole (11) of the negative pressure automatic release device is communicated with the inner part of the effusion cavity.
CN201710273987.8A 2017-04-25 2017-04-25 Negative pressure automatic release device and negative pressure drainage device Active CN107019820B (en)

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CN107019820B true CN107019820B (en) 2023-06-23

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109331258B (en) * 2018-11-16 2021-02-19 佳木斯大学 Thoracic cavity closed drainage device for respiratory nursing department
CN112604038B (en) * 2020-12-18 2023-04-28 温州市中心医院 Cardiovascular intervention puncture drainage device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469484A (en) * 1982-06-08 1984-09-04 Bio Research Inc. Surgical drainage device with automatic negative pressure relief system
US4675011A (en) * 1984-05-04 1987-06-23 Bioresearch Inc. Surgical drainage apparatus
US4747844A (en) * 1980-06-06 1988-05-31 C. R. Bard, Inc. Chest drainage apparatus
CN201862028U (en) * 2010-11-11 2011-06-15 何建庆 High negative pressure releasing device
CN204815019U (en) * 2015-07-20 2015-12-02 上海华杰企业发展有限公司 Hydrolock thoracic cavity drainage bottle with negative pressure release
CN105251072A (en) * 2009-12-24 2016-01-20 昆山韦睿医疗科技有限公司 DIALYSIS system
CN105530985A (en) * 2013-07-19 2016-04-27 阿特利姆医疗公司 Chest drainage systems and methods
CN207492998U (en) * 2017-04-25 2018-06-15 上海契斯特医疗科技公司 A kind of negative pressure automatic releasing device and negative pressure drainage device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747844A (en) * 1980-06-06 1988-05-31 C. R. Bard, Inc. Chest drainage apparatus
US4469484A (en) * 1982-06-08 1984-09-04 Bio Research Inc. Surgical drainage device with automatic negative pressure relief system
US4675011A (en) * 1984-05-04 1987-06-23 Bioresearch Inc. Surgical drainage apparatus
CN105251072A (en) * 2009-12-24 2016-01-20 昆山韦睿医疗科技有限公司 DIALYSIS system
CN201862028U (en) * 2010-11-11 2011-06-15 何建庆 High negative pressure releasing device
CN105530985A (en) * 2013-07-19 2016-04-27 阿特利姆医疗公司 Chest drainage systems and methods
CN204815019U (en) * 2015-07-20 2015-12-02 上海华杰企业发展有限公司 Hydrolock thoracic cavity drainage bottle with negative pressure release
CN207492998U (en) * 2017-04-25 2018-06-15 上海契斯特医疗科技公司 A kind of negative pressure automatic releasing device and negative pressure drainage device

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Effective date of registration: 20190911

Address after: Room 2858, 6th floor, 111 Fengpu Avenue, Fengxian District, Shanghai 201400

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Applicant before: SHANGHAI CHEST MEDICAL TECHNOLOGICAL CO.,LTD.

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