CN215023454U

CN215023454U - Dialysis catheter for nephrology department

Info

Publication number: CN215023454U
Application number: CN202120295784.0U
Authority: CN
Inventors: 王晓华; 张瑞芹; 敖强国; 侯颉玢; 张雅斌; 杨光
Original assignee: Second Medical Center of PLA General Hospital
Current assignee: Second Medical Center of PLA General Hospital
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-12-07
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a dialysis catheter for nephrology dept, including diplopore pipe, branch slit, plastics long ring, lead wire, long syringe needle, divide the splice block, link up spout, push-and-pull fixture block, shunt tubes, thin steel wire, thin bellows pipe, first pore, bar groove and second pore. The utility model relates to a rationally, push-and-pull fixture block that is located the middle part through promoting backward moves along linking up the spout backward, can pull out from first pore to the wire that draws, reach the effect that the deformation of the long ring middle part of plastics that will be located the parting joint is bloated, be favorable to separately having two ports of diplopore pipe one end of long syringe needle, be convenient for adjust the deciliter size in a flexible way according to the circumstances needs, push-and-pull fixture block that is located one of them in both sides through promoting forward moves forward along linking up the spout, can move forward thin steel wire along the second pore, be favorable to stretching out the long syringe needle that links to each other from the port and pierce in the blood vessel, push pin and needle body structure have been increased, improve the operating efficiency of dialysis.

Description

Dialysis catheter for nephrology department

Technical Field

The utility model relates to a dialysis catheter specifically is a nephrology dept is with dialysis catheter belongs to nephrology dept dialysis application technical field.

Background

Dialysis, which means that solutes move from a high concentration solution to a low concentration solution through a semipermeable membrane, clinically means that some waste substances in blood are removed through the semipermeable membrane, and hemodialysis is one of safer, easy-to-implement and widely-used blood purification methods, and includes solute movement and water movement, that is, the blood and dialysate are contacted with each other through the semipermeable membrane and subjected to substance exchange through a concentration gradient in a dialyzer (artificial kidney), so that metabolic waste substances and excessive electrolytes in the blood move to the dialysate, and calcium ions, basic groups and the like in the dialysate move to the blood.

Part dialysis catheter is the diplopore structure, and is said as vein blood transfusion way and artery blood transfusion way respectively, and the syntropy end mouth of pipe lacks and can drive detached structure, is unfavorable for carrying out nimble adjustment according to the dialysis operation condition and uses, and the syntropy end mouth of pipe does not set up the syringe needle structure simultaneously and needs external syringe needle just can use to operating time is longer relatively. Therefore, a dialysis catheter for nephrology department is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a dialysis catheter for nephrology department.

The utility model realizes the purpose by the following technical proposal, a dialysis catheter for nephrology department, which comprises a double-hole catheter, a separation and combination component and a push needle component, wherein the middle part of one end of the double-hole catheter is provided with a separation seam, and the other end of the double-hole catheter is provided with a separation and combination block;

the separating and combining assembly comprises a plastic long ring and a drawing wire, the plastic long ring is positioned in the separation seam, half side walls on two sides of the plastic long ring are respectively bonded with corresponding side walls of the separation seam, one end of the drawing wire is fixed on the end wall of one end in the plastic long ring, and the drawing wire is positioned in the first pore channel in a sliding manner;

the push pin subassembly includes long syringe needle, thin steel wire and thin bellows, long syringe needle slidable mounting corresponds in the port at diplopore pipe one end, and a long syringe needle end port is connected with thin bellows one end port, the thin bellows other end corresponds the mutual fixed connection of port depths toroid one end with diplopore pipe one end, thin steel wire one end and the mutual fixed connection of long needle fill toroid one end, and thin steel wire slides and is located the second pore.

Furthermore, three linking chutes are alternately formed in the top of the tapping block, the linking chutes are sequentially communicated with the second hole channel, the first hole channel and the second hole channel, and push-pull clamping blocks are slidably clamped in the three linking chutes.

Furthermore, the other end of the thin steel wire is fixedly connected with one end face of the push-pull clamping block positioned in the corresponding connecting sliding groove, the second pore channel is formed in the middle of the end wall of one side in the strip-shaped groove, and the strip-shaped groove is formed in the inner ring wall of the corresponding port at one end of the double-pore conduit.

Furthermore, the first pore channel is arranged in the middle of the bottom of the separation seam, and one end of the traction wire positioned in the first pore channel is fixedly connected with one end face of the push-pull clamping block positioned in the corresponding connecting sliding chute.

Furthermore, two separated ports at the other end of the double-hole conduit are provided with one end of a shunt tube, and the shunt tube is provided with a control valve structure.

Furthermore, the plastic long ring is in a long strip shape, a hole structure is formed in the middle of the end wall of the other end in the plastic long ring, and a wire drawing part penetrates through the hole structure.

The utility model has the advantages that:

1. this kind of dialysis catheter for nephrology dept reasonable in design, the push-and-pull fixture block that is located the middle part through promoting backward moves along linking up the spout backward, can pull out from first pore to the drawing wire that leads, reaches the effect that the deformation of the long ring middle part of plastics that will be located the parting seam is bloated, is favorable to separately two ports of diplopore catheter one end that will have long syringe needle, is convenient for adjust the deciliter size in a flexible way as required according to the circumstances.

2. This kind of dialysis catheter for nephrology dept reasonable in design, through promoting forward that the push-and-pull fixture block that is located one of them in both sides moves forward along linking the spout, can move forward thin steel wire along the second pore, is favorable to stretching out the long syringe needle that links to each other from the port and pierces the blood vessel in, has increased push away needle and needle body structure, improves the operating efficiency of dialysing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of one end structure of the double-hole catheter of the present invention;

fig. 3 is a schematic view of the end face structure of one end of the double-hole conduit of the present invention.

In the figure: 1. the double-hole guide pipe comprises a double-hole guide pipe body, 2 parts of a separation seam, 3 parts of a plastic long ring, 4 parts of a drawing wire, 5 parts of a long needle head, 6 parts of a tapping block, 7 parts of a connecting chute, 8 parts of a push-pull clamping block, 9 parts of a shunt pipe, 10 parts of a thin steel wire, 11 parts of a thin corrugated pipe, 12 parts of a first hole channel, 13 parts of a strip-shaped groove, 14 parts of a second hole channel.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, a dialysis catheter for nephrology department comprises a double-hole catheter 1, a split-combination component and a push needle component, wherein a separation seam 2 is arranged in the middle of one end of the double-hole catheter 1, and a split-connection block 6 is arranged at the other end of the double-hole catheter 1;

the split-combination assembly comprises a plastic long ring 3 and a drawing wire 4, the plastic long ring 3 is positioned in the separation seam 2, one half of the side walls of the two sides of the plastic long ring 3 are respectively bonded with the corresponding side walls of the separation seam 2, one end of the drawing wire 4 is fixed on the end wall of one end in the plastic long ring 3, and the drawing wire 4 is positioned in the first pore passage 12 in a sliding manner;

the push pin subassembly includes long syringe needle 5, thin steel wire 10 and

thin bellows

11, 5 slidable mounting of long syringe needle are in the port is corresponded to 1 one end of diplopore pipe, and 5 one end ports of long syringe needle are connected with 11 one end ports of thin bellows, the mutual fixed connection of port depths toroid surface is corresponded to 1 one end of the two-hole pipe to the thin bellows 11 other end, thin steel wire 10 one end and the mutual fixed connection of long needle fill toroid surface one end, and thin steel wire 10 slides and is located second pore 14.

The top of the tapping block 6 is alternately provided with three connecting chutes 7, the three connecting chutes 7 are sequentially communicated with a second pore passage 14, a first pore passage 12 and a second pore passage 14, and push-pull fixture blocks 8 are slidably clamped in the three connecting chutes 7; the other end of the thin steel wire 10 is fixedly connected with one end face of a push-pull fixture block 8 positioned in the corresponding connecting sliding chute 7, the second pore channel 14 is formed in the middle of the end wall of one side in the strip-shaped groove 13, and the strip-shaped groove 13 is formed in the inner annular wall of one end of the double-hole catheter 1 corresponding to the port; the first pore passage 12 is formed in the middle of the bottom of the separation seam 2, and one end of the traction wire 4 positioned in the first pore passage 12 is fixedly connected with one end face of the push-pull fixture block 8 positioned in the corresponding connecting chute 7; two separated ports at the other end of the double-hole conduit 1 are provided with one ends of flow dividing pipes 9, and the flow dividing pipes 9 are provided with control valve structures; the plastic long ring 3 is in a long strip shape, a hole structure is formed in the middle of the end wall of the other end in the plastic long ring 3, and a drawing wire 4 penetrates through the hole structure.

When the utility model is used, the push-pull fixture block 8 positioned in the middle part is pushed backwards to move backwards along the connecting chute 7, so that the pulling wire 4 can be pulled out from the first pore passage 12, the effect of bulging the deformation of the middle part of the plastic long ring 3 positioned in the separation seam 2 is achieved, two ports at one end of the double-hole catheter 1 with the long needle head 5 can be separated, and the opening and closing size can be flexibly adjusted according to the situation;

by pushing the push-pull fixture block 8 located on one of the two sides forwards to move forwards along the connecting chute 7, the thin steel wire 10 can be moved forwards along the second pore channel 14, the connected long needle head 5 can be extended from the port to be inserted into a blood vessel, the structures of the push needle and the needle body are increased, and the dialysis operation efficiency is improved.

It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A dialysis catheter for nephrology department is characterized in that: the device comprises a double-hole catheter (1), a split-combination component and a push needle component, wherein a separation seam (2) is formed in the middle of one end of the double-hole catheter (1), and a split-combination block (6) is installed at the other end of the double-hole catheter (1);

the split-combined assembly comprises a plastic long ring (3) and a drawing wire (4), the plastic long ring (3) is positioned in the separation seam (2), one half of the side walls of the two sides of the plastic long ring (3) are respectively bonded with the corresponding side walls of the separation seam (2), one end of the drawing wire (4) is fixed on the end wall of one end in the plastic long ring (3), and the drawing wire (4) is positioned in the first pore passage (12) in a sliding manner;

the push pin subassembly includes long syringe needle (5), thin steel wire (10) and thin bellows (11), long syringe needle (5) slidable mounting is in diplopore pipe (1) one end corresponds the port, and long syringe needle (5) one end port is connected with thin bellows (11) one end port, the mutual fixed connection of port depths toroidal surface is corresponded with diplopore pipe (1) one end to the thin bellows (11) other end, thin steel wire (10) one end and the mutual fixed connection of long needle fill toroidal surface one end, and thin steel wire (10) slide and are located second pore (14).

2. A dialysis catheter for nephrology department according to claim 1, wherein: the top of the tapping block (6) is alternately provided with three linking chutes (7), the linking chutes (7) are sequentially communicated with a second pore passage (14), a first pore passage (12) and a second pore passage (14), and the three linking chutes (7) are all slidably clamped with push-pull clamping blocks (8).

3. A dialysis catheter for nephrology department according to claim 1, wherein: the other end of the thin steel wire (10) is fixedly connected with one end face of a push-pull clamping block (8) located in the corresponding connecting sliding groove (7), the second pore channel (14) is formed in the middle of the end wall of one side in the strip-shaped groove (13), and the strip-shaped groove (13) is formed in the inner annular wall of the corresponding port at one end of the double-hole catheter (1).

4. A dialysis catheter for nephrology department according to claim 1, wherein: the first pore channel (12) is arranged in the middle of the bottom of the separation seam (2), and one end of the traction wire (4) positioned in the first pore channel (12) is fixedly connected with one end face of the push-pull clamping block (8) positioned in the corresponding connecting sliding groove (7).

5. A dialysis catheter for nephrology department according to claim 1, wherein: two separated ports at the other end of the double-hole conduit (1) are provided with one ends of the shunt tubes (9), and the shunt tubes (9) are provided with control valve structures.

6. A dialysis catheter for nephrology department according to claim 1, wherein: the plastic long ring (3) is in a long strip shape, the middle part of the end wall of the other end in the plastic long ring (3) is provided with a hole structure, and a drawing wire (4) part penetrates through the hole structure.