CN216823372U

CN216823372U - Pipeline connecting structure, endoscope and surgical instrument

Info

Publication number: CN216823372U
Application number: CN202122978398.4U
Authority: CN
Inventors: 胡济凡; 项子灿; 谭永宏
Original assignee: Sz Hugemed Med Tech Dev Co ltd
Current assignee: Sz Hugemed Med Tech Dev Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-28
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a pipeline connecting structure, an endoscope and a surgical instrument. The pipe connection structure includes: the pipeline comprises a first pipeline, a second pipeline and a cladding pipe, wherein the first pipeline is provided with a cut, the second pipeline is provided with a butt joint, the cut is communicated with the butt joint, and the cladding pipe wraps the joint of the cut and the butt joint. The cladding pipe can tightly wrap and seal the joint of the first pipeline and the second pipeline; because complex connecting pieces do not need to be added, and complex production processes such as bonding or interference connection are not needed, the production is greatly convenient, and the cost is reduced. And for pipelines with different sizes, the cladding pipe can still be applied, and great convenience is brought to application.

Description

Pipeline connecting structure, endoscope and surgical instrument

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a pipeline connecting structure, an endoscope and a surgical instrument.

Background

In recent years, endoscopes and other surgical instruments have been widely used in the medical field. The insertion portion of an endoscope or other surgical instrument includes one or more conduits extending from the operating portion to the distal end of the insertion portion to perform functions such as injection into a patient's body or suction from the patient's body.

For the place with pipe bifurcation, the traditional connection mode is to connect through a tee, as shown in fig. 1, the tee has three or more pipe joints, and the inner cavities of the pipe joints are communicated. Particularly, one is a plastic tee joint, and a pipeline is bonded with an interface of the plastic tee joint; the other is a metal three-way piece, and the pipeline is in interference connection with the interface of the metal three-way piece. Other connections are made by making a cut in the side of the tubing and then interference or adhesive bonding by means of a pin. The prior art adds a complex connecting piece and has complex production processes such as bonding or interference connection and the like. The connecting piece can not be used universally for pipelines with different sizes.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model provides a pipeline connection structure, endoscope and surgical instruments solves the connection problem of pipeline bifurcation department, makes connection structure simple and general, makes the operation technology simplify.

The technical scheme of the utility model is as follows: provided is a pipe connecting structure including: the pipeline comprises a first pipeline, a second pipeline and a cladding pipe, wherein the first pipeline is provided with a cut, the second pipeline is provided with a butt joint, the cut is communicated with the butt joint, and the cladding pipe wraps the joint of the cut and the butt joint. The cladding pipe can tightly wrap and seal the joint of the first pipeline and the second pipeline; preferably, the cladding pipe is a heat shrinkable pipe. In the heat shrinkage process, the inner wall layer of the heat shrinkage pipe has slight fluidity, and can be attached to the surfaces of the first pipeline and the second pipeline so as to be sealed. Because complex connecting pieces do not need to be added, and complex production processes such as bonding or interference connection are not needed, the production is greatly convenient, and the cost is reduced. And for pipelines with different sizes, the cladding pipe can still be applied, and great convenience is brought to application.

The butt joint port is in butt joint with the cut-out, and the butt joint port is in direct butt joint with the cut-out, so that the assembly can be more convenient.

The pipeline connecting structure further comprises: the covering piece covers the joint of the butt joint port and the split port and is arranged in the cladding pipe. The cover may enhance the sealing effect at the junction of the first and second conduits.

Preferably, the heat shrinkable tube is a double-wall heat shrinkable tube. Adopt double-walled pyrocondensation pipe, first pipeline, second pipeline set up respectively in an inner wall of double-walled pyrocondensation pipe, and the double-walled pyrocondensation pipe after the pyrocondensation can be better seal the pipe wall of first pipeline and double-walled thermoplastic pipe, the pipe wall of second pipeline and double-walled pyrocondensation pipe, cut open and the junction to the interface. After the covering piece is added, the covering piece can prevent the heat shrinkable tube from flowing into the joint of the butt joint port and the slit during heat shrinkage

The first pipeline is a single cavity or multiple cavities, and the second pipeline is a single cavity or multiple cavities.

The opening is arranged on the side face or the end face of the first pipeline and is flat cut or beveled.

The butt joint is arranged on the side face or the end face of the second pipeline and is in flat cutting or beveling.

The utility model also provides an endoscope which comprises the pipeline connecting structure. The working channel of the endoscope is communicated with the first pipeline, and the suction tube of the endoscope is communicated with the second pipeline.

The utility model also provides a surgical instrument which comprises the pipeline connecting structure.

By adopting the scheme, the utility model provides the pipeline connecting structure, the endoscope and the surgical instrument, and the coating pipe can tightly wrap and seal the connecting part of the first pipeline and the second pipeline; the cladding pipe adopts the pyrocondensation pipe, and at the in-process of pyrocondensation, the inner wall layer of pyrocondensation pipe has slight mobility, can attach the surface of first pipeline and second pipeline to seal. Because complex connecting pieces do not need to be added, complex production processes such as bonding or interference connection are not needed, the production is greatly convenient, and the cost is reduced. And for pipelines with different sizes, the cladding pipe can still be applied, so that great convenience is brought to application.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural diagram of an embodiment of a piping connection structure;

FIG. 3 is a cross-sectional view of the embodiment of FIG. 2;

FIG. 4 is a schematic structural view of another embodiment of a piping connection structure;

FIG. 5 is a cross-sectional view of the embodiment of FIG. 4;

fig. 6 is a schematic structural view of the covering member on the first pipeline and the second pipeline in the embodiment of fig. 4.

FIG. 7 is a schematic structural view of yet another embodiment of a piping connection structure;

FIG. 8 is a cross-sectional view of the embodiment of FIG. 7;

FIG. 9 is a schematic view of the structure of an endoscope employing the embodiment of FIG. 2;

FIG. 10 is a schematic view of the connection of the suction tube, the operating tube and the embodiment of FIG. 2 of the endoscope of FIG. 9;

fig. 11 is a schematic structural view of a nipple incision knife using the embodiment of fig. 2.

Detailed Description

The utility model is described in detail below with reference to the figures and the specific embodiments.

Example 1

Referring to fig. 2 and fig. 3, the present embodiment provides a pipe connection structure, including: the pipeline comprises a first pipeline 10, a second pipeline 20 and a cladding pipe 30, wherein the first pipeline 10 is provided with a cut-out 11, the second pipeline 20 is provided with a butt joint 21, the cut-out 11 is communicated with the butt joint 21, and the cladding pipe 30 wraps the joint of the cut-out 11 and the butt joint 21. Cladding tube 30 can tightly encase and seal the junction of first pipeline 10 and second pipeline 20; the cladding tube 30 is a heat shrink tube. The inner wall layer of the heat shrinkable tube has slight fluidity during the heat shrinkage process, and can be attached to the surfaces of the first and

second pipes

10 and 20 to be sealed. Because complex connecting pieces do not need to be added, and complex production processes such as bonding or interference connection are not needed, the production is greatly convenient, and the cost is reduced. And for pipelines with different sizes, the cladding pipe 30 can still be applied, and great convenience is brought to application.

In this embodiment, the interface 21 of the second pipeline 20 interfaces with the opening 11.

In this embodiment, the heat shrinkable tube is a double-wall heat shrinkable tube. Adopt double-walled pyrocondensation pipe, first pipeline 10, second pipeline 20 set up respectively in an inner wall of double-walled pyrocondensation pipe, and the double-walled pyrocondensation pipe after the pyrocondensation can be better seals the pipe wall of first pipeline 10 and double-walled thermoplastic pipe, the pipe wall of second pipeline 20 and double-walled pyrocondensation pipe, cut open 11 and the junction of butt joint mouth 21.

In this embodiment, the first pipeline 10 is a single cavity, and the second pipeline 20 is a single cavity.

In the present embodiment, the cut 11 is disposed on the side of the first pipeline 10, and the cut 11 is a flat cut.

In the present embodiment, the pair of interfaces 21 is disposed on the end surface of the second pipeline 20, and the pair of interfaces 21 is chamfered.

Referring to fig. 9 and 10, the present invention further provides an endoscope including the aforementioned tube connecting structure. The working channel 41 of the endoscope communicates with the first channel 10, and the suction tube 42 of the endoscope communicates with the second channel 20.

Referring to fig. 11, the present embodiment further provides a papilla incision knife, including the above-mentioned pipeline connecting structure.

Example 2

Referring to fig. 4, 5, and 6, a first pipeline 10, a second pipeline 20, and a cladding pipe 30 are provided in the present embodiment, the first pipeline 10 is provided with a cut-out 11, the second pipeline 20 is provided with a butt-joint 21, the cut-out 11 is communicated with the butt-joint 21, and the cladding pipe 30 wraps the joint between the cut-out 11 and the butt-joint 21. Cladding tube 30 may tightly encase and seal the junction of first pipe 10 and second pipe 20; cladding tube 30 is a heat shrink tube. The inner wall layer of the heat shrinkable tube has slight fluidity during the heat shrinkage process, and can be attached to the surfaces of the first and

second pipes

In the present embodiment, the docking port 21 of the second pipeline 20 docks with the port 11.

In this embodiment, the pipeline connecting structure further includes: a cover 22, said cover 22 covering the junction of said interface 21 with the slit 11, said cover 22 being arranged inside the cladding tube 30. The cover 22 can enhance the sealing effect at the joint of the first pipeline 10 and the second pipeline 20, and after the cover 22 is added, the cover 22 can block the heat shrinkable tube from flowing into the joint of the interface 21 and the opening 11 when being shrunk.

In this embodiment, the heat shrinkable tube is a single-wall heat shrinkable tube.

In this embodiment, the first pipeline 10 is a double-cavity pipeline, and the second pipeline 20 is a single-cavity pipeline.

In this embodiment, the cut is provided at the side of the first pipeline 10, and the cut 11 is a flat cut.

In this embodiment, the pair of interfaces 21 is disposed on the end surface of the second pipeline 20, the number of the pair of interfaces 21 is two, one of the pair of interfaces 21 is a flat cut, and one of the pair of interfaces 21 is a flat bevel.

Example 3

Referring to fig. 7 and 8, the present embodiment provides a pipeline connecting structure, which includes a first pipeline 10, a second pipeline 20, and a cladding pipe 30, wherein the first pipeline 10 is provided with a cut 11, the second pipeline 20 is provided with a butt joint 21, the cut 11 is communicated with the butt joint 21, and the cladding pipe 30 wraps a joint between the cut 11 and the butt joint 21. Cladding tube 30 may tightly encase and seal the junction of first pipe 10 and second pipe 20; cladding tube 30 is a heat shrink tube. The inner wall layer of the heat shrinkable tube has slight fluidity during the heat shrinkage process, and can be attached to the surfaces of the first and

second pipes

10 and 20 to be sealed. Because complex connecting pieces do not need to be added, complex production processes such as bonding or interference connection are not needed, the production is greatly convenient, and the cost is reduced. And for pipelines with different sizes, the cladding pipe 30 can still be applied, and great convenience is brought to application.

In the present embodiment, the pair of interfaces 21 is disposed on the side of the second pipeline 20, and the pair of interfaces 21 are cut flat.

In summary, the present invention provides a tube connection structure, an endoscope and a surgical instrument, wherein a covering tube can tightly cover and seal a connection portion between a first tube and a second tube; the coating pipe is a heat-shrinkable pipe. In the heat shrinkage process, the inner wall layer of the heat shrinkage pipe has slight fluidity, and can be attached to the surfaces of the first pipeline and the second pipeline so as to be sealed. Because complex connecting pieces do not need to be added, and complex production processes such as bonding or interference connection are not needed, the production is greatly convenient, and the cost is reduced. And for pipelines with different sizes, the cladding pipe can still be applied, and great convenience is brought to application.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe connecting structure, comprising: the pipeline comprises a first pipeline, a second pipeline and a cladding pipe, wherein the first pipeline is provided with a cut, the second pipeline is provided with a butt joint, the cut is communicated with the butt joint, and the cladding pipe wraps the joint of the cut and the butt joint.

2. A pipe connecting structure according to claim 1, wherein said butt joint port is butted against said slit.

3. A pipe connecting structure according to claim 1 or 2, further comprising: the covering piece covers the joint of the butt joint port and the split port and is arranged in the cladding pipe.

4. The pipe connection structure according to claim 1, wherein the cladding pipe is a heat shrinkable pipe.

5. The pipe connecting structure according to claim 4, wherein the heat shrinkable tube is a double-wall heat shrinkable tube.

6. A tube connecting structure according to claim 1, wherein said first tube is single-lumen or multi-lumen, and said second tube is single-lumen or multi-lumen.

7. The pipe connection structure according to claim 1, wherein the cut is provided on a side surface or an end surface of the first pipe, and the cut is cut flat or chamfered.

8. The pipe connection structure according to claim 1, wherein the butt joint is provided on a side surface or an end surface of the second pipe, and the butt joint is cut flat or chamfered.

9. An endoscope, comprising: the piping connection structure as claimed in any one of claims 1 to 8.

10. A surgical instrument, comprising: the piping connection structure as claimed in any one of claims 1 to 8.