CN214129908U

CN214129908U - Pipeline connection structure, medical pipeline and medical liquid injection pipe

Info

Publication number: CN214129908U
Application number: CN202022466632.0U
Authority: CN
Inventors: 郭毅军; 温兴东
Original assignee: Chongqing Xishan Science and Technology Co Ltd
Current assignee: Chongqing Xishan Science and Technology Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-09-07
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a pipeline connection structure, medical pipeline and medical notes liquid pipe, this pipeline connection structure, including the adaptor that has the cavity passageway, adaptor and PVC union coupling, this pipeline connection structure still include the outer tube, and the PVC pipe box is in the one end of adaptor, outer tube have be used for pressing the PVC pipe in last pipeline section that compresses tightly of adaptor compresses tightly the pipeline section cladding outside the PVC pipe. The medical pipeline and the medical injection tube are both provided with the pipeline connecting structure. The utility model discloses in, the PVC pipe does not need sticky the meeting requirements of being connected with the adapter, and the elasticity of outer tube is bigger than the elasticity of PVC pipe, can reduce the probability that the tube coupling position takes place to become flexible, improves the reliability of pipeline.

Description

Pipeline connection structure, medical pipeline and medical liquid injection pipe

Technical Field

The utility model relates to a medical instrument especially relates to a pipeline connection structure, medical pipeline and medical notes liquid pipe.

Background

The existing medical pipeline is formed by connecting a plurality of PVC pipes, in order to realize the butt joint of two adjacent PVC pipes, the mode adopted at present is to fill the two ends of a connecting piece into the two PVC pipes respectively, and the connecting part of each PVC pipe and the connecting piece is coated with viscose glue, and the connecting piece is provided with a hollow channel, so that the conveyed liquid can smoothly pass through the connecting part.

However, the adhesive is inconvenient to store and use in the assembly process; in addition, although the PVC pipe has certain elasticity, the elasticity is insufficient, and the PVC pipe is easy to loosen after long-term use, so that the pipeline is leaked.

Disclosure of Invention

A primary object of the present invention is to provide a tube connecting structure, a medical tube and a medical liquid injection tube, which can improve the convenience of assembly, reduce the probability of loosening at the tube connecting part, and improve the reliability of the tube.

The utility model provides a pipeline connection structure, is including the adaptor that has the cavity passageway, adaptor and PVC union coupling, this pipeline connection structure still include the outer tube that has elastic deformation ability or heat altered shape ability, wherein, the PVC pipe box is in the one end of adaptor, the outer tube has and is used for with the PVC pipe is pressed the compressing pipe section on the adaptor, compress tightly the pipeline section cladding and be in outside the PVC pipe.

Correspondingly, the utility model also provides a medical pipeline, which comprises at least two PVC pipes and a connector for connecting the PVC pipes; the adjacent two PVC pipes are sleeved at two ends of the same adapter in a one-to-one correspondence manner, the pipeline connecting structure is arranged between each PVC pipe and the corresponding adapter, and at the moment, the outer sleeve of the pipeline connecting structure is not provided with the following connecting pipe section.

Optionally, the outer sleeve further comprises a connecting pipe section, and the connecting pipe section is sleeved at the other end of the adapter.

Optionally, the compression pipe section and the connection pipe section are disconnected.

Optionally, the adaptor includes PVC union coupling portion, interval portion and outer tube connecting portion that set gradually along axial direction, the PVC pipe the adaptor cover is in outside the PVC union coupling portion, the connecting pipe section cooperates the cover adaptor be in outside the outer tube connecting portion, the interval portion separates compress tightly the pipeline section with the connecting pipe section.

Optionally, the compression pipe section and the connection pipe section are integrally formed.

Optionally, the adaptor includes PVC union coupling portion and outer tube connecting portion, PVC union coupling portion with be formed with the step face between the outer tube connecting portion, the PVC pipe box is in from the pot head of adaptor outside PVC union coupling portion, just the tip of PVC pipe supports on the step face, the outer tube is followed the other end of adaptor wraps up in proper order the adaptor with the PVC pipe.

Optionally, the outer contour of the PVC pipe connecting part is wholly cylindrical;

or

The outer contour of the PVC pipe connecting part is integrally tapered;

or

The PVC pipe connecting part comprises a plurality of cones which are coaxially connected in series, so that a plurality of annular positioning bulges are formed on the outer wall of the PVC.

Optionally, the outer contour of the outer sleeve connecting part is wholly cylindrical;

or

Along the axial direction, the diameter of the outer sleeve connecting part is firstly increased and then decreased, so that the outer sleeve connecting part forms a middle bulge.

Correspondingly, the utility model also provides a medical pipeline, which comprises at least two PVC pipes and a connector for connecting the PVC pipes; at least two adapters are arranged between every two adjacent PVC pipes, any one of the pipeline connecting structures is arranged between each PVC pipe and the corresponding adapter, and the adjacent adapters share the same connecting pipe section.

The utility model also provides a medical notes liquid pipe, be in including vertical needle, lid the protective cap and the connection of vertical needle front end are in the medical pipeline of vertical needle tail end, medical pipeline is foretell medical pipeline, this moment, outer tube in the medical pipeline has the connection pipeline section.

Optionally, the pipe fitting of medical pipeline foremost is the PVC pipe, the front end cover of PVC pipe is in the tail end of erector needle, the front end overcoat elasticity of PVC pipe compresses tightly the pipe, elasticity compresses tightly the pipe and adopts rubber materials, the front end that elasticity compressed tightly the pipe extends forward to directly press on the erector needle.

The utility model discloses in, the PVC pipe does not need sticky the meeting requirements of being connected with the adapter, and the elasticity of outer tube is bigger than the elasticity of PVC pipe, can reduce the probability that the tube coupling position takes place to become flexible, improves the reliability of pipeline.

Drawings

Fig. 1 is a schematic diagram illustrating an exemplary structure of a medical tubing of the present invention;

fig. 2 is a schematic view of another exemplary structure of a medical tubing of the present invention;

FIG. 3 is a schematic diagram illustrating a further exemplary arrangement of tubing connections in the medical tubing of FIG. 1;

FIG. 4 is a schematic diagram illustrating a further exemplary arrangement of tubing connections in the medical tubing of FIG. 1;

fig. 5 is a schematic diagram showing an exemplary structure of the medical infusion tube.

The description of reference numerals in the examples includes:

a medical pipeline A, PVC tube 1, an outer sleeve 2, a pressing tube 21, a connecting tube 22, an adaptor 3, a PVC tube connecting part 31, a spacing part 33, an outer sleeve connecting part 32,

A vertical needle 4, a protective cap 5 and an elastic pressing tube 6.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

It is to be understood that the present invention may be embodied in many different 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 scope of the invention to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout.

With reference to fig. 1 to 4, the utility model discloses a pipeline connecting structure, including adaptor 3 that has the cavity passageway, adaptor 3 is connected with PVC pipe 1, and this pipeline connecting structure still includes outer tube 2, and wherein, PVC pipe 1 cover is in adaptor 3's one end, outer tube 2 have be used for with PVC pipe 1 presses last pipeline section 21 that compresses tightly of adaptor 3 compresses tightly the cladding of pipeline section 21 outside PVC pipe 1. At this moment, PVC pipe 1 is connected with adaptor 3 and need not sticky can satisfy the connection requirement, and the elasticity of outer tube 2 is bigger than PVC pipe 1's elasticity, can reduce the probability that the pipeline connection position takes place to become flexible, improves the reliability of pipeline.

In practical implementation, the outer sleeve may be a rubber tube, a heat-shrinkable tube or other tube with deformability.

Specifically, in some embodiments, referring to fig. 1, 3 and 4 in combination, the outer sleeve 2 further includes a connecting pipe section 22, wherein the pressing pipe section 21 is wrapped outside the PVC pipe 1, and the connecting pipe section 22 is wrapped on the other end of the adaptor 3. At this moment, in the corresponding medical pipeline, the connection mode of two PVC pipes 1 is: PVC pipe 1, adaptor 3, outer tube 2, adaptor 3, PVC pipe 1 connect gradually, are provided with two or more adaptors between two adjacent PVC pipes that is, all are provided with the pipeline connection structure between every PVC pipe and the corresponding adaptor, and the same root of adjacent two adaptors sharing is connected the pipeline section. Because the PVC pipe is low in cost and the outer sleeve is relatively high in cost, if the whole medical pipeline is completely provided with the outer sleeve, the probability of loosening the pipeline can be reduced, but the cost is higher, and the medical pipeline combining the PVC pipe and the outer sleeve is lower in cost on the premise of meeting the reliability of the pipeline.

In particular, in other embodiments, see fig. 2, the outer sleeve 2 is not provided with the connecting tube section 22. At this moment, among the corresponding medical pipeline, the connected mode of two PVC pipes is PVC pipe 1, adaptor 3, PVC pipe 1, and the cover that also is adjacent two PVC pipe one-to-one is at the both ends of same adaptor, all is provided with the tube coupling structure between every PVC pipe and the corresponding adaptor, and in this tube coupling structure, the outer tube sticiss near the junction of PVC pipe and adaptor.

The line connection structures of the following embodiments, in which the outer jacket tube 2 has both the compressed tube section 21 and the connection tube section 22, are applied to the medical line.

In some embodiments, referring to fig. 1, the pinched pipe section 21 is disconnected from the connecting pipe section 22.

Specifically, in some embodiments, referring to fig. 1, the adaptor 3 includes a PVC pipe connection portion 31, a spacer portion 33, and an outer sleeve connection portion 32, which are sequentially disposed along an axial direction, the PVC pipe 1 is sleeved outside the PVC pipe connection portion 31 from one end of the adaptor 3, the connection pipe section 22 is sleeved outside the outer sleeve connection portion 32 of the adaptor 3 in a matching manner, and the spacer portion 33 separates the compression pipe section 21 and the connection pipe section 22.

In other embodiments, referring to fig. 3 and 4, the compression tube section 21 and the connecting tube section 22 are integrally formed.

Specifically, in some embodiments, referring to fig. 3 and 4, the adaptor includes a PVC pipe connection portion 31 and an outer sleeve connection portion 32, a step surface is formed between the PVC pipe connection portion 31 and the outer sleeve connection portion 32, the PVC pipe 1 is sleeved outside the PVC pipe connection portion 31 from one end of the adaptor 3, and the end of the PVC pipe 1 abuts against the step surface, the outer sleeve 2 sequentially wraps the adaptor 3 and the PVC pipe 1 from the other end of the adaptor 3, which is beneficial to preventing the PVC pipe 1 from sliding towards the direction where the outer sleeve connection portion 32 is located.

In some embodiments, referring to fig. 1 and 2, the PVC pipe connection 31 has an overall cylindrical outer profile; referring to fig. 4, the outer profile of the PVC pipe connecting portion 31 is generally tapered; in other embodiments, referring to fig. 3, the PVC pipe connection part 31 includes a plurality of cones coaxially connected in series, so that a plurality of annular positioning protrusions are formed on the outer wall of the PVC pipe, which is beneficial to preventing the PVC pipe from separating from the adaptor, and improves the reliability of the connection structure.

In some embodiments, referring to fig. 2 and 4, the outer profile of the outer sleeve-connecting portion 32 is generally cylindrical; in other embodiments, referring to fig. 1 and 3, the diameter of the outer sleeve connection portion 32 is increased and then decreased along the axial direction, such that the outer sleeve connection portion 32 forms a middle protrusion. The connection pipe section 22 of the outer sleeve 2 is prevented from being separated from the adapter 3, and the reliability of the connection structure is improved.

The utility model also provides a medical notes liquid pipe, see figure 5, including vertical needle 4, lid at the protective cap 5 of vertical needle 4 front end and connect the medical pipeline A of vertical needle 4 tail ends, medical pipeline A is any kind of above-mentioned medical pipeline, at this moment, the outer tube 2 that adopts among the medical pipeline A has the connection pipeline section 22. It should be noted that the orientation qualifier "front" refers to the direction of the tip of the vertical needle, and "tail" refers to the direction away from the tip of the vertical needle.

In some embodiments, referring to fig. 5, the foremost pipe of the medical pipeline a is a PVC pipe 1, the front end of the PVC pipe 1 is sleeved on the tail end of the vertical needle 4, and the front end of the PVC pipe 1 is sleeved with an elastic pressing pipe 6, the elastic pressing pipe 6 is made of rubber material, and the front end of the elastic pressing pipe 6 extends forwards and directly presses on the vertical needle 4. At the moment, the connecting part between the vertical needle 4 and the medical pipeline A does not need to adopt viscose, so that the assembling is convenient, and the connection is reliable.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not being in direct contact, but rather being in contact with each other via additional features between them.

In the description of the invention, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, components, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, and/or groups thereof.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a pipeline connection structure, is including the adaptor that has the cavity passageway, the adaptor is connected its characterized in that with the PVC pipe: the PVC pipe is sleeved at one end of the adapter, the outer sleeve is provided with a pressing pipe section for pressing the PVC pipe on the adapter, and the pressing pipe section is coated outside the PVC pipe.

2. The piping connection structure according to claim 1, wherein: the outer sleeve further comprises a connecting pipe section, and the connecting pipe section is sleeved at the other end of the adaptor.

3. The piping connection structure according to claim 2, wherein: the compression pipe section is disconnected from the connection pipe section.

4. The piping connection structure according to claim 3, wherein: the adaptor comprises a PVC pipe connecting part, a spacing part and an outer sleeve connecting part which are sequentially arranged along the axial direction, the PVC pipe is sleeved on the adaptor outside the PVC pipe connecting part, the connecting pipe section is sleeved outside the outer sleeve connecting part of the adaptor in a matching mode, and the spacing part is spaced to compress the pipe section and the connecting pipe section.

5. The piping connection structure according to claim 2, wherein: the compression pipe section and the connecting pipe section are integrally formed.

6. The piping connection structure according to claim 5, wherein: the adaptor includes PVC union coupling portion and outer tube connecting portion, PVC union coupling portion with be formed with the step face between the outer tube connecting portion, the PVC pipe box is in from the pot head of adaptor outside PVC union coupling portion, just the tip of PVC pipe supports on the step face, the outer tube is followed the other end of adaptor wraps up in proper order the adaptor with the PVC pipe.

7. The piping connection structure according to claim 4 or 6, wherein:

the outer contour of the PVC pipe connecting part is integrally cylindrical;

or

The outer contour of the PVC pipe connecting part is integrally tapered;

or

8. The piping connection structure according to claim 4 or 6, wherein:

the outer contour of the outer sleeve connecting part is integrally cylindrical;

or

9. The utility model provides a medical pipeline, includes two piece at least PVC pipes and is used for connecting each the adaptor of PVC pipe which characterized in that:

the two adjacent PVC pipes are sleeved at two ends of the same adapter in a one-to-one correspondence manner, and the pipeline connecting structure of claim 1 is arranged between each PVC pipe and the corresponding adapter;

or

At least two adapters are arranged between two adjacent PVC pipes, the pipeline connecting structure according to any one of claims 2-8 is arranged between each PVC pipe and the corresponding adapter, and the two adjacent adapters share the same connecting pipe section.

10. The utility model provides a medical notes liquid pipe, is in including vertical needle, lid the protective cap of vertical needle front end and connect the medical pipeline of vertical needle tail end, its characterized in that: the medical tubing is the medical tubing of claim 9.

11. The medical infusion tube of claim 10, wherein: the medical pipeline pipe fitting at the foremost end is the PVC pipe, the front end cover of PVC pipe is in the tail end of erector needle, just the front end overcoat elasticity of PVC pipe compresses tightly the pipe, elasticity compresses tightly the pipe and adopts rubber materials, the front end that elasticity compressed tightly the pipe extends forward to directly press on the erector needle.