CN214260318U - Cardiothoracic surgery drainage catheter - Google Patents

Abstract

The utility model discloses a cardiothoracic surgery drainage catheter. The method comprises the following steps: the hose, and the drainage end arranged at the front part of the hose and the joint end arranged at the rear part of the hose; the length of the long axis of the ellipse is 10.8-12.45 mm, the length of the short axis of the ellipse is 7.2-8.3 mm, and the thickness of the tube wall of the hose is 1.5-2 mm; the length ratio of the major axis of the ellipse to the minor axis of the ellipse is 1.5: 1. The utility model has the advantages that: the cross section of the outer diameter of the hose is oval, so that the hose can conveniently penetrate through the rib clearance; the fixing part is arranged, so that the drainage tube can be conveniently fixed at the wound; the control valve is arranged to control the on-off state; the pipeline joint is arranged to be convenient for connecting with a drainage pipeline.

Description

Cardiothoracic surgery drainage catheter

Technical Field

The utility model relates to the field of medical equipment, in particular to a cardiothoracic surgery drainage catheter.

Background

The drainage of cardiothoracic surgery is used for carrying out the drainage with the internal hydrops of cardiothoracic surgery patient, avoids the accumulation of patient's intrathoracic liquid, convenient to use, safe and reliable.

The existing drainage tube is generally a cylindrical rubber tube, and when the drainage tube passes through the intercostal space, the drainage tube can press the intercostal nerve tissue, so that the patient feels uncomfortable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cardiothoracic surgery drainage catheter, the transversal of its hose external diameter is oval, is convenient for pass the intercostal clearance.

In order to achieve the above object, the utility model adopts the following technical scheme, include: the hose, and the drainage end arranged at the front part of the hose and the joint end arranged at the rear part of the hose; the length of the long axis of the ellipse is 10.8-12.45 mm, the length of the short axis of the ellipse is 7.2-8.3 mm, and the thickness of the tube wall of the hose is 1.5-2 mm; the length ratio of the major axis of the ellipse to the minor axis of the ellipse is 1.5: 1.

Preferably, the method further comprises the following steps:

the fixing piece is arranged in the middle of the hose and used for fixing the hose at the wound;

wherein the fixing member comprises;

the inner periphery of the tube body is matched with the outer periphery of the hose and used for wrapping the hose;

a peripheral edge provided on the outer periphery of the lower end of the tube body;

and the bonding layer is arranged on the lower end surface of the periphery and is used for bonding and fixing at the wound.

Preferably, a pipeline joint for connecting a drainage pipeline is arranged at the joint end; one end of the pipeline joint is provided with a first connecting part matched with the hose, and the other end of the pipeline joint is provided with a second connecting part matched with the drainage pipeline.

Preferably, a rounded formation is provided at the drainage end of the hose.

Preferably, the method further comprises the following steps:

and the control valve is arranged at the rear part of the hose and is used for controlling the on-off of the hose.

Preferably, the control valve includes:

the valve seat is provided with an axial through cavity for the flexible pipe to pass through;

the rotating rod cavity is radially arranged on the valve seat and is communicated with the through cavity;

the rotating rod is arranged in the rotating rod cavity, and the front end of the rotating rod is provided with a pressing part;

the free end of the rotating rod cavity is provided with an internal thread, the rear part of the rotating rod is provided with an external thread matched with the internal thread, and the pressing part is provided with a rounding structure.

The utility model has the advantages that: the cross section of the outer diameter of the hose is oval, so that the hose can conveniently penetrate through the rib clearance; the fixing part is arranged, so that the drainage tube can be conveniently fixed at the wound; the control valve is arranged to control the on-off state; the pipeline joint is arranged to be convenient for connecting with a drainage pipeline.

Drawings

Fig. 1 is a perspective view of the drainage catheter for cardiothoracic surgery of the utility model.

Fig. 2 is a perspective view of the fixing member of the utility model.

Fig. 3 is a perspective view of the pipe joint of the present invention.

Fig. 4 is a sectional view of the control valve of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1-4, an implementation form of the present invention, in order to achieve the above object, adopts the following technical solution, including:

the hose 110 is made of a soft polymer material. And a drainage end 111 provided at the front of the hose and a nipple end 112 provided at the rear of the hose; the cross section of the outer diameter of the hose 110 is oval, the length of the long axis of the oval is 10.8-12.45 mm, the length of the short axis of the oval is 7.2-8.3 mm, and the thickness of the tube wall of the hose is 1.5-2 mm; the length ratio of the major axis of the ellipse to the minor axis of the ellipse is 1.5: 1. Preferably, the hose 110 is made of a silicone material. More preferably, the major axis of the ellipse is 12.45mm, the minor axis of the ellipse is 8.3mm, and the wall thickness of the hose is 1 mm.

In use, the front portion of the tube 110 is inserted into the intercostal space of the patient to allow the drainage end 111 to reach the drainage site, and then the connector end 112 is connected to the drainage line for drainage. Because the cross section of the outer diameter of the hose 110 is oval, the length of the short shaft is smaller than that of a common drainage tube, the hose is more suitable for passing through intercostal gaps, compression of intercostal nerves is avoided, and the use comfort is improved.

In another embodiment, the method further comprises: the fixing member 120 is arranged in the middle of the hose 110 and is used for fixing the hose 110 at the wound; wherein the fixing member 120 includes: the inner circumference of the tube body 121 is matched with the outer circumference of the hose 110 and is used for wrapping the hose 110; the periphery 122 is arranged on the periphery of the lower end of the tube body 121; an adhesive layer 123 is disposed on the lower end surface of the peripheral edge 122 for adhering and fixing at the wound. Preferably, the fixing member 120 is made of elastic rubber. By adjusting the position of the fixing member 120 on the hose 110, the length of the drainage tube extending into the human body can be defined.

In another embodiment, a line connection 140 for connecting a drain line is provided at the connection end 112; a first connection portion 141 matching with the hose 110 is provided at one end of the pipe joint 140, and a second connection portion 142 matching with the drainage pipe is provided at the other end of the pipe joint.

In another embodiment, a rounded configuration is provided at the drainage end of the hose 110.

In another embodiment, the method further comprises: the control valve 150 is disposed at the rear of the hose 110 for controlling the on/off of the hose 110.

In another embodiment, the control valve 150 includes: the valve seat 151 is provided with an axial through cavity 151a for the hose to pass through; the rotating rod cavity 152 is radially arranged on the valve seat 151 and is communicated with the through cavity 151 a; the rotating rod 153 is arranged in the rotating rod cavity 152, and a pressing part 153a is arranged at the front end of the rotating rod 153; an internal thread is arranged at the free end of the rotating rod cavity 152, an external thread matched with the internal thread is arranged at the rear part of the rotating rod 153, and a rounded structure is arranged at the pressing part 153 a.

To sum up, the cross section of the outer diameter of the flexible pipe 110 of the drainage catheter 1 for cardiothoracic surgery of the utility model is oval, which is convenient for passing through the intercostal space; the fixing part 120 is arranged to fix the drainage tube at the wound; a control valve 150 is arranged to control the on-off state; a pipe joint 140 is provided to facilitate connection with the drainage pipe.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims (6)

1. A cardiothoracic surgical drainage catheter, comprising: the hose, and the drainage end arranged at the front part of the hose and the joint end arranged at the rear part of the hose; the cross section of the outer diameter of the hose is oval, the length of the long axis of the oval is 10.8-12.45 mm, the length of the short axis of the oval is 7.2-8.3 mm, and the thickness of the tube wall of the hose is 1.5-2 mm; the length ratio of the major axis of the ellipse to the minor axis of the ellipse is 1.5: 1.

2. The cardiothoracic surgical drainage catheter of claim 1, further comprising:

the fixing piece is arranged in the middle of the hose and used for fixing the hose at the wound;

wherein the fixing member comprises;

the inner periphery of the tube body is matched with the outer periphery of the hose and used for wrapping the hose;

a peripheral edge provided on the outer periphery of the lower end of the tube body;

and the bonding layer is arranged on the lower end surface of the periphery and is used for bonding and fixing at the wound.

3. The cardiothoracic surgical drainage catheter of claim 1 or 2, wherein: a pipeline joint for connecting a drainage pipeline is arranged at the joint end; one end of the pipeline joint is provided with a first connecting part matched with the hose, and the other end of the pipeline joint is provided with a second connecting part matched with the drainage pipeline.

4. The cardiothoracic surgical drainage catheter of claim 1 or 2, wherein: and a drainage end of the hose is provided with a rounding structure.

5. The cardiothoracic surgical drainage catheter of claim 1 or 2, further comprising:

and the control valve is arranged at the rear part of the hose and is used for controlling the on-off of the hose.

6. The cardiothoracic surgical drainage catheter of claim 5, wherein the control valve comprises:

the valve seat is provided with an axial through cavity for the flexible pipe to pass through;

the rotating rod cavity is radially arranged on the valve seat and is communicated with the through cavity;

the rotating rod is arranged in the rotating rod cavity, and the front end of the rotating rod is provided with a pressing part;

the free end of the rotating rod cavity is provided with an internal thread, the rear part of the rotating rod is provided with an external thread matched with the internal thread, and the pressing part is provided with a rounding structure.

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