WO2022000533A1

WO2022000533A1 - Multi-lumen tube and endoscope assembly

Info

Publication number: WO2022000533A1
Application number: PCT/CN2020/101266
Authority: WO
Inventors: 樊金成; 佴广金
Original assignee: 江苏钱璟医疗器械有限公司
Priority date: 2020-07-02
Filing date: 2020-07-10
Publication date: 2022-01-06

Abstract

A multi-lumen tube and an endoscope assembly. The multi-lumen tube comprises: a multi-lumen tube body (10), the multi-lumen tube body (10) having a proximal end (10A) and a distal end (10B), which are formed in the axial direction; and an inflatable balloon (11), which is arranged at the distal end (10A) of the multi-lumen tube body (10), wherein the interior of the multi-lumen tube body (10) is axially divided into a first internal pipe (101) matching an endoscope, a second internal pipe (102) in communication with the inflatable balloon (11), and a third internal pipe (1030) and a fourth internal pipe (104) respectively defining different flow directions of liquid, the pipes being not in communication with one another. The multi-lumen tube and the endoscope assembly can implement multiple functions in a single insertion, which saves on operation time, reduces bleeding of a patient, and also reduces operation difficulty to improve the operation quality.

Description

Multi-lumen tubes and endoscope assemblies

technical field

The present invention relates to the field of minimally invasive medical instruments, in particular to a multi-lumen tube and an endoscope assembly.

Background technique

With the wide application of vascular interventional therapy, various forms of multi-lumen tubes have also been promoted. In order to reduce postoperative complications, many companies have developed expandable multi-lumen tubes.

The existing multi-lumen tube with an endoscope will cause some trauma to the body tissue, bleeding, secretion, etc., when it enters the patient's body, which will coat and adhere to the periphery of the multi-lumen tube or the endoscope. If the angle needs to be adjusted and multiple shots are needed, the operation time will be delayed, the patient's bleeding will be increased, the shooting effect of the endoscope will be further reduced, and the quality of the operation will be reduced.

Accordingly, the present invention provides a multi-lumen tube and endoscope assembly.

SUMMARY OF THE INVENTION

In view of the problems in the prior art, the purpose of the present invention is to provide a multi-lumen tube and an endoscope assembly, which overcomes the problem that the blood vessel is easily clamped after expansion in the prior art, and can achieve multiple functions in one insertion, The operation time is greatly saved, the bleeding of the patient is reduced, the difficulty of the operation is reduced, and the quality of the operation is improved.

Embodiments of the present invention provide a multi-lumen tube, comprising:

a multi-lumen tubular body having axially formed proximal and distal ends; and

An inflatable balloon is disposed at the distal end of the multi-lumen tube body, and the interior of the multi-lumen tube body is axially divided into a first internal tube that is not connected to each other and is connected to the endoscope. The second inner pipe of the inflatable balloon and the third inner pipe and the fourth inner pipe which respectively define different flow directions of the liquid.

Preferably, the nozzle of the second inner pipe communicates with the inflatable balloon, and the nozzle of the first internal pipe, the nozzle of the third internal pipe and the nozzle of the fourth internal pipe are all exposed to the the distal end of the multi-lumen tube body.

Preferably, the axial directions of the first inner pipe, the second inner pipe, the third inner pipe and the fourth inner pipe are parallel to each other.

Preferably, the first inner conduit defines a travel path of the endoscope in the multi-lumen tube body;

the fourth inner conduit defines a first path of fluid flow from the proximal end to the distal end of the multi-lumen tube body;

The third inner conduit defines a second path of fluid flow from the distal end to the proximal end of the multi-lumen tube body.

Preferably, it further comprises a socket, the socket is socketed with the proximal end of the multi-lumen tube body;

The socket is provided with a first pipeline interface, a second pipeline interface, a third pipeline interface and a fourth pipeline interface, and the first pipeline interface is coaxially connected to the first internal pipeline and is connected to all the The second pipeline interface of the second internal pipeline, the third pipeline interface connected to the fourth internal pipeline, and the fourth pipeline interface connected to the third internal pipeline from the outer wall of the first pipeline interface to the The side away from the multi-lumen tube body extends in a branch shape.

Preferably, at the proximal end of the multi-lumen tube body, the third inner pipeline has a first communication hole formed on the tube wall of the multi-lumen tube body, and the fourth pipeline interface communicates with the first communication hole hole;

the fourth inner pipe has a second communication hole formed in the pipe wall of the multi-lumen pipe body,

The third pipeline interface communicates with the second communication hole; the second inner pipeline has a third communication hole formed on the pipe wall of the multi-lumen tube body, and the second pipeline interface communicates with the third communication hole.

Preferably, the distance from the first communication hole to the distal end is smaller than the distance from the second communication hole to the distal end;

The distance from the second communication hole to the distal end is smaller than the distance from the third communication hole to the distal end.

Preferably, the diameter of the first inner pipe is larger than the diameter of the fourth inner pipe;

The diameter of the fourth inner pipe is larger than that of the second inner pipe and the third inner pipe.

Preferably, the value range of the outer diameter of the inflatable balloon is 2.0mm to 4.0mm, and the value range of the inner diameter of the first pipeline interface is 1.2mm to 1.8mm.

An embodiment of the present invention also provides an endoscope assembly, comprising: the multi-lumen tube as described above;

an endoscope; and

a display handle;

The endoscope is connected to the display handle, the endoscope is inserted into the first inner pipe at the proximal end of the multi-lumen tube, and the second inner pipe is connected to a gas filling and discharging device or a liquid filling and discharging device , in order to change the volume of the inflatable balloon, the third internal pipeline is connected to a liquid extraction device, and the fourth internal pipeline is connected to a cleaning liquid delivery device.

The multi-lumen tube and endoscope assembly of the present invention can realize multiple functions under the condition of one insertion, greatly save operation time, reduce patient bleeding, reduce the difficulty of operation, and improve the quality of operation.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings.

FIG. 1 is a schematic perspective view of the multi-lumen tube of the present invention in a contracted state of an inflatable balloon.

FIG. 2 is a schematic structural diagram of the multi-lumen tube body in the multi-lumen tube of the present invention.

FIG. 3 is a cross-sectional view of FIG. 2 .

4 is a perspective view of the proximal end of the multi-lumen tube body of the multi-lumen tube of the present invention.

FIG. 5 is a schematic perspective view of the multi-lumen tube of the present invention in an inflated state of an inflatable balloon.

6 to 7 are schematic diagrams of the assembly process of the endoscope assembly in the present invention.

FIG. 8 is a schematic structural diagram of the endoscope assembly in the present invention.

FIG. 9 is a schematic structural diagram of an endoscope in the present invention.

FIG. 10 is a schematic structural diagram of the display handle in the present invention.

FIG. 11 is a perspective view of the display handle in the present invention.

12 to 18 are schematic diagrams of the use process of the endoscope assembly in the present invention.

detailed description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repeated descriptions will be omitted.

FIG. 1 is a schematic perspective view of the multi-lumen tube of the present invention in a contracted state of an inflatable balloon. FIG. 2 is a schematic structural diagram of the multi-lumen tube body in the multi-lumen tube of the present invention. FIG. 3 is a cross-sectional view of FIG. 2 . 4 is a perspective view of the proximal end of the multi-lumen tube body of the multi-lumen tube of the present invention. FIG. 5 is a schematic perspective view of the multi-lumen tube of the present invention in an inflated state of an inflatable balloon. As shown in FIGS. 1 to 4 , the multi-lumen tube of the present invention includes: a multi-lumen tube body 10 and an inflatable balloon 11 . The multi-lumen tube body 10 has a proximal end 10A and a distal end 10B formed in the axial direction. And the inflatable balloon 11 is arranged at the distal end 10B of the multi-lumen tube body 10, and the interior of the multi-lumen tube body 10 is axially divided into a first internal pipe 101 that is not connected with the endoscope and communicates with the inflatable ball. The second inner pipe 102 of the bladder 11 and the third inner pipe 103 and the fourth inner pipe 104 respectively define different flow directions of the liquid. The first inner pipe 101 , the second inner pipe 102 , the third inner pipe 103 , and the fourth inner pipe 104 may be integrally formed inside the multi-lumen tube body 10 . The first inner tube 101, the second inner tube 102, the third inner tube 103, and the fourth inner tube 104 in the present invention each have different capabilities, so that the multi-lumen tube of the present invention enters the human tissue (the patient's body needs treatment) part), the inflation balloon can be inflated, contracted, and inflated through the first inner tube 101, the second inner tube 102, the third inner tube 103, and the fourth inner tube 104 without the multi-lumen tube body 10 moving. The speculum has four functions: entering and exiting, flushing the blood and secretions of human tissue, and drawing out the blood and secretions, which greatly saves operation time and reduces patient bleeding.

FIG. 5 is a schematic perspective view of the multi-lumen tube of the present invention in an inflated state of an inflatable balloon. As shown in FIG. 5 , in a preferred embodiment, the orifice of the second inner pipe 102 is connected to the inflatable balloon 11 , and the second inner pipe 102 can deliver gas or normal saline liquid to the inflatable balloon 11 , so that the inflatable balloon 11 can be inflated. The balloon 11 is inflated to open the human tissue for subsequent photographing; gas or saline liquid can also be extracted from the inflatable balloon 11 to shrink the inflatable balloon 11 so as to be withdrawn from the human tissue. The orifice of the second inner tube 102 can be completely connected to the inflatable balloon 11 and not exposed at the distal end 10B of the multi-lumen tube body 10 , but is not limited thereto. The nozzle of the first inner pipe 101 , the nozzle of the third inner pipe 103 and the nozzle of the fourth inner pipe 104 are all exposed at the distal end 10B of the multi-lumen tube body 10 , wherein the third inner pipe 103 is mainly used for self- The distal end 10B of the multi-lumen tube body 10 extracts the cleaning fluid and delivers it to the proximal end 10A, so that the inside of the human tissue is not disturbed by the image blood water and secretion fluid. The fourth inner conduit 104 is mainly used to transport cleaning fluid along the proximal end 10A of the multi-lumen tube body 10 to the distal end 10B. In this embodiment, the axial directions of the first inner pipe 101 , the second inner pipe 102 , the third inner pipe 103 and the fourth inner pipe 104 are parallel to each other, but not limited thereto.

In a preferred embodiment, the inflatable balloon 11 is a ring-shaped balloon, which covers the circumference of the distal end 10B of the multi-lumen tube body 10, but is not limited thereto.

In a preferred embodiment, the first inner conduit 101 defines the travel path of the endoscope within the multi-lumen tube body 10 . The fourth inner conduit 104 defines a first path of fluid flow from the proximal end 10A of the multilumen tube body 10 to the distal end 10B. The third inner conduit 103 defines a second path of fluid flow from the distal end 10B of the multi-lumen tube body 10 to the proximal end 10A. Therefore, the first internal pipeline 101 , the second internal pipeline 102 , the third internal pipeline 103 , and the fourth internal pipeline 104 can implement their functions independently without interfering with each other.

In a preferred embodiment, the present invention further includes a socket 12 for socketing the proximal end 10A of the multi-lumen tube body 10 . The socket 12 is provided with a first pipeline interface 13, a second pipeline interface 14, a third pipeline interface 15 and a fourth pipeline interface 16. The first pipeline interface 13 coaxially communicates with the first internal pipeline 101 and communicates with The second pipeline interface 14 of the second internal pipeline 102 , the third pipeline interface 15 connected to the fourth internal pipeline 104 , and the fourth pipeline interface 16 connected to the third internal pipeline 103 from the outer wall of the first pipeline interface 13 to the The side away from the multi-lumen tube body 10 is extended in a tree branch shape, so as to connect different devices in different directions, reduce the spatial interference between the devices, and facilitate the operation of the doctor.

In a preferred embodiment, at the proximal end 10A of the multi-lumen tube body 10, the third inner tube 103 has a first communication hole 105 formed in the tube wall of the multi-lumen tube body 10, and the fourth tube interface 16 communicates with the first communication hole 105. A communication hole 105 . The fourth inner pipe 104 has a second communication hole 106 formed in the pipe wall of the multi-lumen pipe body 10 , and the third pipe interface 15 communicates with the second communication hole 106 . The second inner pipe 102 has a third communication hole 107 formed on the pipe wall of the multi-lumen pipe body 10 , and the second pipe interface 14 communicates with the third communication hole 107 . The distance from the first communication hole 105 to the distal end 10B is smaller than the distance from the second communication hole 106 to the distal end 10B. The distance from the second communication hole 106 to the distal end 10B is smaller than the distance from the third communication hole 107 to the distal end 10B. This arrangement can avoid mutual interference when realizing various functions, optimize the cleaning of the wound and fully extract the normal saline liquid effect, etc. In a modified example, the first communication hole 105 may be an open slot provided at the end of the proximal end 10A, so as to obtain a more flexible connection manner, but not limited thereto.

In a preferred embodiment, the diameter of the first inner pipe 101 is larger than the diameter of the fourth inner pipe 104, but not limited thereto. The diameter of the fourth inner pipe 104 is larger than the diameters of the second inner pipe 102 and the third inner pipe 103 , but not limited thereto.

In a preferred embodiment, the outer diameter of the inflatable balloon 11 ranges from 2.0 mm to 4.0 mm, and the inner diameter of the first pipeline interface 13 ranges from 1.2 mm to 1.8 mm. In this embodiment, the outer diameter of the inflatable balloon 11 is 3.0 mm. The inner diameter of the first pipeline interface 13 is 1.6 mm.

The inflatable balloon 11 in the multi-lumen tube of the present invention is integrally designed with the multi-lumen tube body 10, so that the pipeline after the balloon can be expanded can not only pass through the endoscope, but also wash the wound and suck blood, etc. The combined use of these functions reduces patient bleeding, reduces the difficulty of surgery, and improves the quality of surgery.

6 to 7 are schematic diagrams of the assembly process of the endoscope assembly in the present invention. FIG. 8 is a schematic structural diagram of the endoscope assembly in the present invention. As shown in FIGS. 6 to 11 , the endoscope assembly of the present invention includes: a multi-lumen tube 1 as described above, an endoscope 2 ; and a display handle 3 . The endoscope 2 is connected with the display handle 3, the endoscope 2 is inserted into the first internal pipe 101 of the proximal end 10A of the multi-lumen tube 1, and the second internal pipe 102 is connected to a gas charging and discharging device or a liquid charging and discharging device to change the The volume of the inflatable balloon 11, the third internal pipeline 103 is connected to a liquid extraction device, and the fourth internal pipeline 104 is connected to a cleaning liquid delivery device.

The structure and technical features of the multi-lumen tube 1 are as described above and will not be repeated here.

FIG. 9 is a schematic structural diagram of an endoscope in the present invention. As shown in FIG. 9 , the endoscope 2 has an endoscope tube 20, one end of the endoscope tube 20 is an endoscope lens 21, and the other end is provided with an annular boss 22, a first connection terminal 23 and a fastening The screw 24 and the first connection terminal 23 are surrounded by the annular boss 22 , and the first connection terminal 23 is used to transmit the image captured by the endoscope lens 21 .

FIG. 10 is a schematic structural diagram of the display handle in the present invention. FIG. 11 is a perspective view of the display handle in the present invention. As shown in FIGS. 10 and 11 , the display handle 3 includes a handle 31 , a connecting portion 35 and a display screen 36 , and the connecting portion 35 is provided with an annular groove 32 that is butted with the annular boss 22 of the endoscope tube 20 and a fastening screw 24 butt joint fastening bolts 34. The annular groove 32 is provided with a second connection terminal 33 , and the first connection terminal 23 is electrically connected with the second connection terminal 33 , so as to display the image captured by the endoscope lens 21 on the display screen 36 .

12 to 18 are schematic diagrams of the use process of the endoscope assembly in the present invention. The detailed process of using the endoscope assembly of the present invention is described below through FIGS. 12 to 18 .

As shown in FIG. 12 , the endoscope assembly is inserted into the human tissue C through the patient's wound D to ensure that the inflated balloon 11 obtained from the end of the multi-lumen tube 1 in a deflated state completely enters the human tissue C.

As shown in FIG. 13, an inflatable device is connected to the second pipeline interface 14, and air is delivered to the inflatable balloon 11 through the second pipeline interface 14 and the second inner pipeline 102, so that the inflatable balloon 11 is inflated and the human body is opened. organization C.

As shown in FIG. 14 , a cleaning device is connected to the third pipeline interface 15 , through the third pipeline interface 15 , the proximal end 10A of the multi-lumen tube body 10 , the fourth inner tube 104 , and the distal end of the multi-lumen tube body 10 . The flow direction of the end 10B sprays physiological saline into the human tissue C to clean the bleeding and secretions caused when the endoscope assembly enters the wound D.

As shown in FIG. 15 , after the cleaning is completed, connect a negative pressure extraction device to the first pipeline interface 13 , and pass through the distal end 10B of the multi-lumen tube body 10 , the third inner tube 103 , and the multi-lumen tube body 10 near the The flow direction of the end 10A and the first pipeline interface 13 draws out the physiological saline mixed with blood and secretions from the human tissue C.

As shown in FIG. 16 , push the display handle 3 to advance the endoscope 2 further, so that the inflated balloon 11 after the endoscope lens 21 at the end of the endoscope 2 is exposed outside the multi-lumen tube body 10 A photo of the cleaned human tissue C is taken and displayed on the display screen 36 of the display handle 3 .

As shown in FIG. 17 , after the shooting is completed, the air in the inflatable balloon 11 is drawn out through the second pipeline interface 14 by using an inflatable device, so that the inflatable balloon 11 is restored to a contracted state.

As shown in FIG. 18 , the endoscope assembly is pulled out of the human tissue C through the wound D of the patient, and the end is completed. After the endoscope assembly of the present invention enters the human tissue C, the multi-lumen tube body 10 does not need to be moved or rotated, but the first internal pipeline 101, the second internal pipeline 102, the third internal pipeline 103, the first internal pipeline 102, the third internal pipeline 103, the There are four internal pipes 104 to achieve different functions. During the whole process, no additional trauma to human tissue C and wound D is caused, which is beneficial to better protect the safety of patients during the operation and reduce pain and bleeding. The invention can bring about the technical effects of convenient operation, shorten operation time, and cure more thoroughly, and at the same time ensure the safety of operation, and bring excellent sensory enjoyment to the doctor.

In summary, the purpose of the present invention is to provide a multi-lumen tube and an endoscope assembly, which can realize multiple functions in one insertion, greatly save operation time, reduce patient bleeding, reduce the difficulty of operation, and improve the operation time. quality.

The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deductions or substitutions can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims

A multi-lumen tube, comprising:

a multi-lumen tubular body having axially formed proximal and distal ends; and

An inflatable balloon is disposed at the distal end of the multi-lumen tube body, and the interior of the multi-lumen tube body is axially divided into a first internal tube that is not connected to each other and is connected to the endoscope. The second inner pipe of the inflatable balloon and the third inner pipe and the fourth inner pipe which respectively define different flow directions of the liquid.
The multi-lumen tube according to claim 1, wherein the nozzle of the second inner pipeline communicates with the inflatable balloon, the nozzle of the first internal pipeline and the nozzle of the third internal pipeline And the mouth of the fourth inner pipe is exposed at the distal end of the multi-lumen tube body.
The multi-lumen tube according to claim 1, wherein the axial directions of the first inner tube, the second inner tube, the third inner tube and the fourth inner tube are parallel to each other.
The multi-lumen tube of claim 1, wherein the first inner conduit defines a path of movement of an endoscope within the multi-lumen tube body;

the fourth inner conduit defines a first path of fluid flow from the proximal end to the distal end of the multi-lumen tube body;

The third inner conduit defines a second path of fluid flow from the distal end to the proximal end of the multi-lumen tube body.
The multi-lumen tube according to claim 1, further comprising a socket, the socket is socketed with the proximal end of the multi-lumen tube body;

The socket is provided with a first pipeline interface, a second pipeline interface, a third pipeline interface and a fourth pipeline interface, and the first pipeline interface is coaxially connected to the first internal pipeline and is connected to all the The second pipeline interface of the second internal pipeline, the third pipeline interface connected to the fourth internal pipeline, and the fourth pipeline interface connected to the third internal pipeline from the outer wall of the first pipeline interface to the The side away from the multi-lumen tube body extends in a branch shape.
The multi-lumen tube according to claim 5, wherein at the proximal end of the multi-lumen tube body, the third inner tube has a first communication hole formed in the tube wall of the multi-lumen tube body, so the fourth pipeline interface communicates with the first communication hole;

the fourth inner pipe has a second communication hole formed in the pipe wall of the multi-lumen pipe body,

The third pipeline interface communicates with the second communication hole; the second inner pipeline has a third communication hole formed on the pipe wall of the multi-lumen tube body, and the second pipeline interface communicates with the third communication hole.
The multi-lumen tube according to claim 6, wherein the distance from the first communication hole to the distal end is smaller than the distance from the second communication hole to the distal end;

The distance from the second communication hole to the distal end is smaller than the distance from the third communication hole to the distal end.
The multi-lumen tube of claim 1, wherein the diameter of the first inner conduit is greater than the diameter of the fourth inner conduit;

The diameter of the fourth inner pipe is larger than that of the second inner pipe and the third inner pipe.
The multi-lumen tube according to claim 1, wherein the value range of the outer diameter of the inflatable balloon is 2.0mm to 4.0mm, and the value range of the inner diameter of the first pipeline interface is 1.2mm to 1.8mm.
An endoscope assembly, comprising: a multi-lumen tube as claimed in any one of claims 1 to 9;

an endoscope; and

a display handle;

The endoscope is connected to the display handle, the endoscope is inserted into the first inner pipe at the proximal end of the multi-lumen tube, and the second inner pipe is connected to a gas filling and discharging device or a liquid filling and discharging device , in order to change the volume of the inflatable balloon, the third internal pipeline is connected to a liquid extraction device, and the fourth internal pipeline is connected to a cleaning liquid delivery device.