CN211512856U

CN211512856U - Hemodialysis catheter

Info

Publication number: CN211512856U
Application number: CN201921625033.XU
Authority: CN
Inventors: 吴鋆
Original assignee: Fuzhou Chang Gung Biological Technology Co ltd
Current assignee: Fuzhou Chang Gung Biological Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-18
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a hemodialysis pipe, including pipe main part, connecting seat, epitaxial tube, pipe clamp, epitaxial joint and sealing plug, it is fixed that pipe main part passes through the veneer with the connecting seat, the connecting seat passes through the veneer with the preceding tip of epitaxial tube and fixes, the pipe clamp sets up on the epitaxial tube, epitaxial joint sets up on the rear end portion of epitaxial tube, the sealing plug sets up inside and the epitaxial joint internal diameter looks adaptation that just connects, the sealing plug is including sealed post an and the sealed post b that is the halfcylinder, sealed post an and the sealed post b's side sets up relatively and the laminating of symmetry sealing plug forms a complete cylinder, the connecting band that does not be equipped with epitaxial articulate is equallyd divide on the half-circular arc face upper portion of sealed post an and sealed post b. The utility model discloses set up the sealing plug and carry out the pipeline protection, guaranteed hemodialysis pipe sealed with aseptic, epitaxial joint and sealing plug integrated into one piece that can mould plastics have improved production efficiency simultaneously.

Description

Hemodialysis catheter

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a hemodialysis pipe.

Background

Dialysis refers to the movement of solutes from a highly concentrated solution to a less concentrated solution through a semi-permeable membrane. Hemodialysis involves the movement of solutes and the movement of water, i.e., the contact of blood and dialysate by a semipermeable membrane and the exchange of substances by concentration gradient in the artificial kidney of the dialyzer, so that metabolic wastes and excess electrolytes in the blood move to the dialysate, and calcium ions, bases and the like in the dialysate move to the blood. Hemodialysis is one of the safer, easy-to-use and widely-applied blood purification methods. Currently, in acute hemodialysis treatment, doctors often guide blood of human bodies into dialyzers through hemodialysis catheters, and the blood is filtered and then returned to blood vessels through pipelines. At present, the known hemodialysis catheter mainly comprises a venous catheter, a three-way connector, a fixed sleeve, a connecting pipe, a plastic clamp, a connecting pipe connector and a connecting pipe connector cap.

The invention with publication number CN104587585A discloses a hemodialysis catheter, which comprises a catheter body, a connecting seat, a fixing clamp, an extension tube, a catheter clamp, an extension tube connector, a lengthened fixing tube, a heparin cap and a tip, and is characterized in that: the lower extreme of body is established to the pointed end, and the upper end of body is connected with the haplopore of connecting seat lower extreme, and the diplopore of connecting seat upper end is connected with two epitaxial tubes respectively, is equipped with the pipe clamp on the epitaxial tube, and the other end of epitaxial tube is equipped with the epitaxial tube joint, and the epitaxial tube is connected with the fixed pipe of extension through the epitaxial tube joint, and the other end lid of the fixed pipe of extension has a heparin cap. The invention has the advantages of convenient operation, good fixation, safety and reliability, and the lengthened fixed tube externally connected with the dialysis tube can be frequently replaced, thereby not only not affecting the fixation of the hemodialysis catheter, but also reducing the infection of the insertion opening, simultaneously avoiding the tube replacement caused by the damage to the extension tube in the dialysis process, and relieving the pain of patients. However, in the invention, the end of the pipeline adopts the luer connector or the end cap to ensure the sealing of the pipeline, and the luer connector and the end cap are screwed by manual operation in the production process, so that a large amount of time and money cost are consumed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims to provide a hemodialysis pipe, it sets up sealing plug protection pipeline, can guarantee the sealed and aseptic of hemodialysis pipe, and it is firm to connect simultaneously, can not drop automatically, and the extension connects and the sealing plug integrated into one piece that can mould plastics moreover, has improved production efficiency, practices thrift the cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a hemodialysis pipe, includes pipe main part, connecting seat, epitaxial tube, pipe clamp, epitaxial joint and sealing plug, the pipe main part passes through the veneer with the connecting seat and fixes, the connecting seat passes through the veneer with the preceding tip of epitaxial tube and fixes, the pipe clamp sets up on the epitaxial tube, epitaxial joint sets up on the rear end portion of epitaxial tube, the sealing plug sets up at the epitaxial joint inside and with epitaxial joint internal diameter looks adaptation, the sealing plug is including sealed post an and the sealed post b that is the half cylinder, sealed post an and the side of sealed post b set up relatively, sealed post an and the symmetrical laminating of sealed post b form a complete cylinder sealing plug, sealed post an and the half arc face upper portion of sealed post b are equallyd divide and do not are equipped with the connecting band that connects with the epitaxial.

The semi-circular arc surfaces of the sealing column a and the sealing column b are provided with a plurality of bulges, and the bulges are triangular structures, boss structures or conical structures.

Wherein, the side lower edges of the sealing column a and the sealing column b are hinged with each other.

And the upper parts of the sealing column a and the sealing column b are respectively provided with a handle a and a handle b which are used for pulling out the sealing plug communication pipeline during dialysis.

Wherein, the extension joint is externally provided with a thread for connecting an external extension pipe or a dialysis machine catheter.

Wherein, the extension joint and the sealing plug are integrally formed by injection molding.

The utility model discloses following beneficial effect has:

1. the hemodialysis catheter of the utility model is provided with a sealing plug, the end of the hemodialysis catheter is provided with a luer connector or an end cap for protecting the pipeline in the prior art to ensure sealing and sterility, the sealing plug and an extension connector arranged in the hemodialysis catheter are integrally formed by injection molding, firstly, extra personnel investment is not needed to be added in the production process of the hemodialysis catheter to carry out sealing operation on the end of the pipeline, the production efficiency and the safety are greatly increased, secondly, medical personnel only need to pull out a handle of the sealing plug when using the hemodialysis catheter to carry out the connection operation of the pipeline, the hemodialysis catheter is simple and rapid, secondly, after the sealing plug is pulled out, the manual operation is difficult to plug the extension connector again, the medical personnel can judge the sealing performance and the safety of the hemodialysis catheter according to the needs, thereby avoiding the secondary use of the hemodialysis catheter, and finally, the hemodialysis catheter can be directly discarded after use, does not produce fragmentary parts, and is convenient for waste treatment.

2. The utility model discloses the sealing plug that well hemodialysis pipe set up can adapt to its sealing plug that uses according to not unidimensional internal diameter pipeline design to, set up a plurality of archs in the circular arc side of sealing plug, increased the leakproofness and the steadiness of this sealing plug.

3. The utility model discloses well two sealing post side lower limb of sealing plug are articulated each other, injection moulding during the production of being convenient for, productivity gain, the articulated setting of two sealing posts can regard as a disposable formula design of destroying simultaneously, after extracting the sealing plug, because the sealing plug still shelters from in mouth of pipe department, consequently just must tear two sealing post side lower limb articulated departments when using, can regard as this hemodialysis pipe to make used foundation from this.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of the extension joint and the sealing plug of the present invention;

fig. 3 is a schematic structural view of the epitaxial joint after the sealing plug is pulled out;

fig. 4 is a schematic view of the usage state of the extension joint of the present invention when connected with an external extension tube or a dialysis machine catheter.

Wherein: 1. a catheter body; 2. a connecting seat; 3. an extension tube; 4. a catheter clamp; 5. an epitaxial joint; 51. a thread; 6. a sealing plug; 61. a sealing column a; 62. a sealing column b; 63. a protrusion; 64. a handle a; 65. a handle b; 7. and a connecting belt.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Referring to fig. 1-4, the utility model relates to a hemodialysis pipe, including pipe main part 1, connecting seat 2, extension pipe 3, pipe clamp 4, extension joint 5 and sealing plug 6, pipe main part 1 is fixed through the veneer with connecting seat 2, connecting seat 2 is fixed through the veneer with the preceding tip of extension pipe 3, pipe clamp 4 sets up on extension pipe 3, extension joint 5 sets up on the rear end of extension pipe 3, sealing plug 6 sets up inside extension joint 5 and with extension joint 5 internal diameter looks adaptation, sealing plug 6 is including being sealing post an 61 and the sealing post b 62 of halfcylinder, sealing post a 61 and sealing post b 62's side sets up relatively, sealing post a 61 and the symmetrical laminating of sealing post b 62 form a complete cylinder sealing plug 6, sealing post a 61 and sealing post b 62's semicircle face upper portion is equallyd divide and is equipped with the connecting band 7 that is connected with extension joint 5 respectively.

Furthermore, a plurality of protrusions 63 are arranged on the semi-circular arc-shaped surfaces of the sealing column a 61 and the sealing column b 62, and the plurality of protrusions 63 are triangular structures, boss structures or conical structures.

Further, the lower edges of the side surfaces of the sealing column a 61 and the sealing column b 62 are hinged with each other, so that the injection molding during production is facilitated, and the production efficiency is improved.

Further, the sealing column a 61 and the sealing column b 62 are respectively provided with a handle a 64 and a handle b 65 at the upper part thereof for pulling out the sealing plug communication pipeline during dialysis, and the structure of the extension joint after pulling out the sealing plug is shown in fig. 3.

Further, the external extension joint 5 is externally provided with a thread 51 for connecting an external extension tube or a dialysis machine catheter, and the connecting structure is shown in fig. 4.

Further, the extension joint 5 and the sealing plug 6 are integrally formed by injection molding.

The above only is the detailed implementation manner of the present invention, not limiting the patent scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A hemodialysis catheter, comprising: comprises a catheter main body (1), a connecting seat (2), an extension tube (3), a catheter clamp (4), an extension joint (5) and a sealing plug (6), wherein the catheter main body (1) is fixed with the connecting seat (2) through gluing, the connecting seat (2) is fixed with the front end part of the extension tube (3) through gluing, the catheter clamp (4) is arranged on the extension tube (3), the extension joint (5) is arranged on the rear end part of the extension tube (3), the sealing plug (6) is arranged in the extension joint (5) and is matched with the inner diameter of the extension joint (5), the sealing plug (6) comprises a sealing column a (61) and a sealing column b (62) which are semi-cylinders, the side surfaces of the sealing column a (61) and the sealing column b (62) are oppositely arranged, the sealing column a (61) and the sealing column b (62) are symmetrically attached to form a complete cylinder sealing plug (6), and the upper parts of the semi-circular arc surfaces of the sealing column a (61) and the sealing column b (62) are respectively provided with a connecting belt (7) connected with the extension joint (5).

2. A hemodialysis catheter according to claim 1, wherein: the semi-circular arc face of sealing post a (61) and sealing post b (62) is provided with a plurality of archs (63), and a plurality of arch (63) are triangle-shaped structure or boss structure or circular cone structure.

3. A hemodialysis catheter according to claim 1, wherein: the side lower edges of the sealing column a (61) and the sealing column b (62) are hinged with each other.

4. A hemodialysis catheter according to claim 1, wherein: and the upper parts of the sealing column a (61) and the sealing column b (62) are respectively provided with a handle a (64) and a handle b (65) which are used for pulling out the sealing plug communication pipeline during dialysis.

5. A hemodialysis catheter according to claim 1, wherein: the external part of the extension joint (5) is provided with a thread (51) for connecting an external extension pipe or a dialysis machine catheter.

6. A hemodialysis catheter according to claim 1, wherein: the extension joint (5) and the sealing plug (6) are integrally formed by injection molding.