CN215194825U

CN215194825U - Drainage tube

Info

Publication number: CN215194825U
Application number: CN202121327443.3U
Authority: CN
Inventors: 陈礼娟; 唐飞舸
Original assignee: West China Second University Hospital of Sichuan University
Current assignee: West China Second University Hospital of Sichuan University
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-17
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a drainage tube, which comprises a tube body, wherein the tube body is of a hollow tubular structure, one end of the tube body is an inlet end and is used for carrying out suction operation in a patient body, and the other end of the tube body is an outlet end and is used for connecting a negative pressure device; a plurality of drainage openings are formed in the end opening of the inlet end along the side wall of the tube. The drainage tube of the utility model can suck body fluid from the drainage port when the tube mouth blocks large-volume solid substances by arranging the drainage port on the side wall of the tube, thereby effectively preventing the solid substances in the body from entering the suction tube and avoiding the blockage of the drainage tube; when the body fluid amount is not enough to submerge the nozzle for continuous suction, air leakage is generated at a part of the drainage port, the suction force is reduced, continuous negative pressure suction to the tissue is reduced, discomfort of a patient caused by strong adsorption of the tissue is avoided, and the suction device is particularly suitable for suction and removal of hematocele at the incision in the operation process, and when the body fluid amount submerges all suction ports of the nozzle, strong suction force is generated, and liquid and solid are automatically distinguished.

Description

Drainage tube

Technical Field

The utility model relates to a medical treatment auxiliary instrument field, concretely relates to drainage tube.

Background

In clinic, a drainage tube is generally needed, which is an important surgical operation apparatus, and the operation principle of the drainage tube is to suck body fluid or a diseased part in a patient body or inside a tissue by means of suction of external negative pressure, and the drainage tube needs to be extended into an operation incision part or the patient body or inside a certain organ during use. Because the drainage tube is stretched into the body of a patient for use, the negative pressure of the drainage tube cannot be large, otherwise tissues in organs can be injured, because the negative pressure of the drainage tube needs to be controlled, if some solid matters such as tissues or blood clots falling off in a body are attracted, or the solid matters are adsorbed to the inner wall of the tissues in the body, the tissue damage or the blockage of the drainage tube can be easily caused, once the blockage occurs, the attraction can only be suspended, the drainage tube is drawn out for dredging, or a new drainage tube is used, and the inconvenience is brought to the operation. When the existing suction tube sucks the hematocele at the incision of an operation, the skin tissue at the incision is easy to adsorb, secondary pull injury can be caused by continuous suction, inconvenience is brought to the operation of a doctor, and the injury is caused to a patient. Therefore, it is necessary to develop a suction tube that sucks only liquid and does not suck solid tissue during suction.

SUMMERY OF THE UTILITY MODEL

The utility model provides a drainage tube for solving the problems in the prior art, which can effectively attract liquid, avoid attracting solid tissue and prevent the drainage tube from being blocked under the action of negative pressure attraction.

In order to realize the technical purpose, the utility model discloses a technical scheme does:

a drainage tube comprises a tube body, wherein the tube body is of a hollow tubular structure, one end of the tube body is an inlet end and is used for carrying out suction operation in a patient body, and the other end of the tube body is an outlet end and is used for being connected with a negative pressure device; a plurality of drainage openings are formed in the end opening of the inlet end along the side wall of the tube.

Preferably, the side wall of the tube between the adjacent drainage openings forms a tube tooth, and the drainage openings are smoothly connected with the tube tooth.

Preferably, the drainage port is connected with the pipe teeth in a wave shape.

Preferably, the inlet end is closed, the end face is in smooth transition connection with the side wall of the tube, and the drainage port is formed in the joint of the end face and the side wall of the tube and/or on the end face.

Preferably, the drainage opening is semi-cylindrical.

Preferably, the drainage port is square.

Preferably, the number of the drainage openings is multiple, and the specific number is determined according to the size of the pipe diameter.

Preferably, the number of the drainage openings is 8.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the drainage tube of the utility model can suck body fluid from the drainage port when the tube mouth blocks large-volume solid substances by arranging the drainage port on the side wall of the tube, thereby effectively preventing the solid substances in the body from entering the suction tube and avoiding the blockage of the drainage tube;

2) when the body fluid is not enough to submerge the tube opening for continuous suction, air leakage is generated at part of the drainage opening, the suction force is reduced, so that the continuous negative pressure suction to the tissue is reduced, the discomfort of a patient caused by strong tissue adsorption is avoided, and the suction device is particularly suitable for suction and removal of hematocele at the incision in the operation process; when the body fluid flows over all the suction ports of the nozzle, a strong suction force is generated, and the liquid and the solid are automatically distinguished.

3) The end face of the inlet end of the drainage tube is closed, the smooth head is arranged at the front end of the drainage tube, so that the drainage tube can be prevented from causing accidental contusion to tissues in a patient body when the drainage tube is moved in the drainage process, and the safety of operation is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic perspective view of a preferred drainage tube of the present invention;

FIG. 2 is an enlarged view of the inlet end of the draft tube shown in FIG. 1;

FIG. 3 is an enlarged view of the inlet end of another preferred draft tube of the present invention;

FIG. 4 is an enlarged view of the inlet end of a draft tube according to another embodiment of the present invention;

reference numerals: 1-tube body, 10-inlet end, 101-end face, 11-outlet end, 2-drainage port and 3-tube tooth.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

The utility model provides a drainage tube, as shown in figures 1 and 2, the drainage tube comprises a tube body 1, the tube body 1 is a hollow tubular structure, one end of the tube body 1 is an inlet end 10 for carrying out suction operation in a patient, and the other end of the tube body 1 is an outlet end 11 for connecting a negative pressure device; a plurality of drainage ports 2 are formed in the end opening of the inlet end 10 along the side wall of the tube; preferably, the pipe lateral wall between the adjacent drainage mouths 2 forms a pipe tooth 3, and the drainage mouths 2 are smoothly connected with the pipe tooth 3 and are wavy, so that the tissues in a patient are prevented from being punctured. The number of the drainage openings 2 can be multiple, such as 2, 4, 6, 8 and 10, and the specific number is determined according to the pipe diameter.

The drainage tube is used for sucking body fluid or body fluid at an operation incision under negative pressure, and the body fluid enters the drainage tube from the tube opening and the drainage opening under the action of the negative pressure suction; when the tube teeth 3 contact solid tissues or clots, body fluid is sucked into the drainage tube from the drainage port 2, so that the condition that the tube mouth is blocked by large suction force on the tissues or the clots under the action of continuous negative pressure is avoided, and the purposes of effectively preventing solid substances in the body from entering the suction tube and avoiding the blockage of the drainage tube are achieved; meanwhile, when the body fluid is not enough to submerge the nozzle, and the suction is continued, air leakage is generated at the part of the drainage port 2 which is not submerged by the body fluid, the suction force is reduced, so that continuous negative pressure suction to the tissue is reduced, discomfort of a patient caused by strong tissue absorption is avoided, and the suction device is particularly suitable for suction and removal of hematocele at the incision in the operation process, and when the body fluid submerges all suction ports of the nozzle, strong suction force is generated, and liquid and solid are automatically distinguished.

Preferably, as shown in fig. 3, the inlet end 10 is closed at the end face 101, the end face 101 is in smooth transition connection with the tube side wall, and the drainage port 2 is opened at the connection point of the end face 101 and the tube side wall and/or on the end face 101, and preferably, the drainage port 2 may be semi-cylindrical or square.

The end surface of the inlet end of the drainage tube is closed, a plurality of drainage ports are formed at the connecting part of the end surface and the side wall of the tube, and the calibers of the drainage ports are smaller than the inner diameter of the drainage tube, so that the negative pressure suction force can be dispersed to the periphery, the suction of large-volume solid clots or fallen tissues in body fluid is avoided, and the body fluid is effectively sucked; when the surface to be sucked is a plane, the air leakage of a part of the suction opening can be realized by inclining the angle of the suction tube, so that the size of the suction force is adjusted; and the smooth head part is arranged at the front end of the drainage tube, so that the accidental contusion of the drainage tube on the internal tissues of a patient can be avoided when the drainage tube is moved in the drainage process, and the safety of the operation is improved.

Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims

1. A drainage tube comprises a tube body (1), wherein the tube body (1) is of a hollow tubular structure, one end of the tube body (1) is an inlet end (10) for carrying out suction operation in a patient body, and the other end of the tube body (1) is an outlet end (11) for connecting a negative pressure device; the method is characterized in that: a plurality of drainage openings (2) are formed in the end opening of the inlet end (10) along the side wall of the tube.

2. The draft tube of claim 1, wherein: it is adjacent pipe lateral wall between drainage mouth (2) forms tub tooth (3), drainage mouth (2) with tub tooth (3) smooth connection.

3. The draft tube of claim 2, wherein: the drainage port (2) is connected with the pipe teeth (3) in a wave shape.

4. The draft tube of claim 1, wherein: the inlet end (10) end face (101) is closed, the end face (101) is connected with the side wall of the pipe, and the drainage port (2) is formed in the joint of the end face (101) and the side wall of the pipe and/or on the end face (101).

5. The draft tube of claim 4, wherein: the drainage opening (2) is semi-cylindrical.

6. The draft tube of claim 4, wherein: the drainage opening (2) is square.

7. The draft tube according to any one of claims 1 to 6 wherein: the number of the drainage openings (2) is multiple, and the specific number is determined according to the size of the pipe diameter.

8. The draft tube of claim 7, wherein: the number of the drainage openings (2) is 8.