CN-122005975-A - Connection structure of collection container and pump host

CN122005975ACN 122005975 ACN122005975 ACN 122005975ACN-122005975-A

Abstract

The invention discloses a connection structure of a collecting container and a pump host, which comprises the pump host, the collecting container and a drain hose, wherein the drain hose is connected to the collecting container, a container side negative pressure interface which is in butt joint with a pump side negative pressure interface on a pump shell of the pump host is arranged on the surface of the collecting container, which is opposite to the pump shell, of the collecting container, and the drain hose, a liquid collecting cavity of the collecting container and the container side negative pressure interface are sequentially communicated. The connecting structure of the invention has the advantages of avoiding the interface from being polluted by hands in the use process, enabling the collecting container to be carried by the patient cannula under the condition of being separated from the pump host, and avoiding liquid and gas leakage.

Inventors

ZHAO JUNJIE
SUN YU
QI WEIBO
NIU NIU
LU WEIFEN
FU FEI
LI GUORONG
KE JIAN
SHEN DONGTING

Assignees

浙江乐信医疗科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260327

Claims (10)

1. A connection structure of a collection container and a pump main body, comprising: a pump main body having a pump housing for accommodating a drain pump; A collection container removably secured to the pump housing; A drain hose; the pump housing is provided with a containing part for guiding the collecting container to be installed, and a pump side negative pressure interface communicated with the drain pump is arranged on the surface, opposite to the collecting container, in the containing part; The drainage hose is connected to the collection container, a container side negative pressure interface which is in butt joint with the pump side negative pressure interface is arranged on the surface, opposite to the pump shell, of the collection container, and the drainage hose, a liquid collecting cavity of the collection container and the container side negative pressure interface are sequentially communicated.
2. The connection structure of a collection container and a pump main unit according to claim 1, further comprising a service hose connected to the collection container, wherein a pump-side service interface communicating with a service unit in the pump housing is further provided on a surface of the receiving portion opposite to the collection container, a container-side service interface interfacing with the pump-side service interface is provided on a surface of the collection container opposite to the pump housing, and the service hose directly communicates with the container-side service interface.
3. The connection structure of the collection container and the pump main unit according to claim 2, wherein the drain hose and the service hose are integrally formed as a two-channel tube.
4. The connection structure of the collection container and the pump main unit according to claim 2, wherein a liquid blocking ventilation module is disposed in the collection container between the container side negative pressure port and the liquid collecting cavity.
5. The connection structure of the collection container and the pump main body according to claim 2, further comprising a connection member, wherein a patient side end of the connection member is provided with a patient side interface, a pump side end is provided with a drain interface and a service interface which are spaced from each other, a drain channel which is communicated with the drain interface and the patient interface and a service channel which is communicated with the service interface and the drain channel are arranged inside the connection member, the drain hose is connected to the drain interface, the service hose is connected to the service interface, a labyrinth runner which prevents liquid from entering the service hose from the drain channel but does not affect gas from the service hose to enter the drain channel is arranged in the service channel, and an air outlet which is communicated with the drain channel is positioned at an edge position of the drain channel and faces the drain interface.
6. A connection structure of a collection container and a pump main unit according to claim 3, wherein a pipe socket is provided on the collection container, the dual-channel pipe is inserted into the pipe socket, a drain through hole and a service through hole are provided in the pipe socket, the drain hose is communicated with the liquid collecting cavity through the drain through hole, and the service hose is communicated with the container side service interface through the service through hole.
7. A connection structure of a collection container and a pump main unit according to claim 2 or 3, wherein the mouth edges of the pump-side negative pressure port and the pump-side service port are each provided with a gasket.
8. The connection structure of the collection container and the pump main unit according to claim 1, wherein a pressure release valve is further provided on a surface of the collection container opposite to the pump housing.
9. The connection structure of the collection container and the pump main unit according to claim 9, wherein a seal cover for sealing the pressure release valve is detachably provided on a surface of the collection container opposite to the pump housing.
10. The connection structure of the collection container and the pump host according to claim 7, wherein a self-closing valve is provided in the container side negative pressure port and the container side service port, and a thimble for opening the self-closing valve when the pump side negative pressure port and the pump side service port are in butt joint is provided in the container side negative pressure port and the container side service port.

Description

Connection structure of collection container and pump host Technical Field The invention belongs to the technical field of medical appliances, relates to an in-vivo liquid drainage device, and particularly relates to a connection structure of a collection container of the in-vivo liquid drainage device and a pump main machine. Background The in vivo fluid drainage device is a medical device commonly used in clinical surgery. Thoracic surgery, respiratory medicine and oncology patients have hydrothorax, peritoneal effusion or pneumothorax, which needs to pass through the drainage tube outside the body through the incision in the operation area or body cavity of the human body, and the pus, exudation blood, tissue fluid and other liquids accumulated in the human tissue or body cavity are guided to the outside by utilizing a negative pressure suction mode, so that postoperative infection caused by liquid accumulation is prevented, and wound healing and rehabilitation are promoted. The in-vivo liquid drainage device generally consists of a drainage pump, a liquid collection container and a drainage tube, and liquid in a human body is sucked into the liquid collection container through the drainage tube by generating negative pressure through the drainage pump. For example, CN101678157A discloses a drain pump unit having a drain pump device having a pump housing for receiving the suction pump, and a fluid collection container removably secured to the pump housing. The drainage pump unit furthermore has a pump-side connection part with a connection element for connection to a patient-side drainage tube. The connection member is detachably held on the pump housing, and has a connection pipe to which a connection hole of the fluid collection container is inserted. When the drainage pump unit is used, the connecting part is required to be inserted on the pump shell, and then the fluid collecting container is butted on the connecting pipe of the connecting part, so that the following defects are caused: 1. When inserting the connection part into the pump housing, an operator will routinely hold the connection part with his hand and touch the interface with his hand to align the interface on the connection part with the interface on the housing, which can cause contamination of the hand contact of the interface. 2. When draining fluid in the body, the connecting part is inserted into the pump housing and then is in butt joint with the fluid collecting container, so that the fluid collecting container cannot be separated from the pump housing all the time, and once separated, the fluid collecting container is separated from the connecting part and a drain hose on the connecting part. However, in some physical examination situations of the patient, such as magnetic resonance examination situations, the patient is not allowed to carry in the instrument containing the metal or electronic components, in which case the patient is required to pull the drain hose off the body and leave the collection container with the drain pump outside for examination, and the drainage tube is also required to be inserted into the body after the examination is completed, which not only increases the inconvenience of the physical examination of the patient, but also increases the pain of the patient. Disclosure of Invention Therefore, the technical problem to be solved by the invention is to provide a connection structure of a collecting container and a pump host, which can not cause hands to contact with a pollution interface when in use, and allows a patient to separate the collecting container from a drainage pump under the condition of cannula so as to independently carry the collecting container, so that the defects in the prior art are overcome. In order to solve the technical problems, the invention adopts the following technical scheme: A connection structure of a collection container and a pump main body, comprising: a pump main body having a pump housing for accommodating a drain pump; A collection container removably secured to the pump housing; A drain hose; the pump housing is provided with a containing part for guiding the collecting container to be installed, and a pump side negative pressure interface communicated with the drain pump is arranged on the surface, opposite to the collecting container, in the containing part; The drainage hose is connected to the collection container, a container side negative pressure interface which is in butt joint with the pump side negative pressure interface is arranged on the surface, opposite to the pump shell, of the collection container, and the drainage hose, a liquid collecting cavity of the collection container and the container side negative pressure interface are sequentially communicated. By adopting the technical scheme, the drainage hose is directly connected to the collecting container, and the negative pressure interface on the container side is directly arranged on the collec