CN110743098A

CN110743098A - Catheter connecting device for hemodialysis

Info

Publication number: CN110743098A
Application number: CN201910951554.2A
Authority: CN
Inventors: 李春娇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-02-04

Abstract

The invention discloses a catheter connecting device for hemodialysis, which relates to the field of medical treatment and aims at solving the problems that during the existing dialysis, the catheter is unstable in connection and fixation, the catheter joint falls off or breaks, potential safety hazards exist, and the dialysis treatment of a patient is influenced. The connecting assembly is novel in structure, the main dialysis tube and the connecting dialysis tube are stably connected and fixed through the connecting assembly, and the main dialysis tube and the connecting dialysis tube are further clamped and fixed through the fixing assembly, so that the main dialysis tube and the connecting dialysis tube are prevented from being pulled off by external force, and the safety is improved.

Description

Catheter connecting device for hemodialysis

Technical Field

The invention relates to the field of medical treatment, in particular to a catheter connecting device for hemodialysis.

Background

Hemodialysis is one of the kidney replacement treatment modes of acute and chronic renal failure patients, and is characterized in that blood in vivo is drained to the outside of the body, and the blood and electrolyte solution (dialysate) with similar body concentration are arranged inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers, so that the material exchange is carried out through dispersion and convection, the metabolic waste in the body is removed, and the electrolyte and acid-base balance are maintained; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis. The existing dialysis device is used, the length of a dialysis catheter is limited, when the distance between a dialysis machine and a patient bed is too far, the dialysis catheter needs to be connected, the connected dialysis catheter must be firm, even under the action of external force, the dialysis catheter cannot break, the existing catheter connection cannot guarantee whether the dialysis catheter breaks under the action of external force, certain potential safety hazards exist, dialysis treatment of the patient is influenced, and therefore the catheter connection device for hemodialysis is designed to solve the problems.

Disclosure of Invention

The invention provides a catheter connecting device for hemodialysis, which solves the problems that during dialysis, the catheter is unstably connected and fixed, the catheter joint falls off or breaks, potential safety hazards exist, and dialysis treatment of a patient is influenced.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a pipe connecting device for hemodialysis, includes PMKD, main dialysis tubing, connects the dialysis tubing, PMKD's top is connected with the support post, the top of support post is fixed with coupling assembling, main dialysis tubing is connected respectively at coupling assembling's both ends with connecting the dialysis tubing, PMKD's top is fixed with two sets of support connecting rods, and is two sets of support connecting rod symmetry respectively sets up in the both sides of support post, and the top of support connecting rod is fixed with fixed subassembly.

Preferably, coupling assembling is including connecting the outer tube, cup jointing the inner tube, holding the subassembly tightly, cup jointing the inner tube setting in the inside of connecting the outer tube, and holding the subassembly tightly and being provided with two sets ofly, two sets of it sets up respectively at the both ends of connecting the outer tube to hold the subassembly tightly.

Preferably, the inner part of the connecting outer pipe is provided with a sealing ring, the sealing ring is an O-shaped ring, and the sealing ring is sleeved on the sleeving inner pipe.

Preferably, the holding component comprises a fixed hoop and a movable hoop, fixed grooves are formed in the inner walls of the two ends of the connecting outer pipe, the fixed hoop is fixed on the inner bottom wall of the connecting outer pipe, and the movable hoop is arranged in the fixed grooves.

Preferably, fixed staple bolt, removal staple bolt all are C type structure, and the C type opening of fixed staple bolt and removal staple bolt sets up relatively, the C type opening both ends of fixed staple bolt all are fixed with first fixed plate, the C type opening both ends of removing the staple bolt all are fixed with the second fixed plate.

Preferably, the first fixing plate is connected with a locking screw, the second fixing plate is fixed with a butterfly threaded sleeve, and the first fixing plate and the second fixing plate are connected through the butterfly threaded sleeve and the locking screw in a matched mode.

Preferably, the end of the movable hoop far away from the fixed hoop is connected with guide rods and connecting springs, the guide rods are provided with four groups, four groups of guide holes are formed in the connecting outer tube, and the end of the guide rods far away from the movable hoop penetrates through the guide holes to be arranged outside the connecting outer tube.

Preferably, one end, far away from the movable hoop, of the connecting spring on the movable hoop is fixed on the inner bottom wall of the fixing groove in the connecting outer pipe.

Preferably, the fixed assembly comprises a fixed base and a connecting cover ring, an arc-shaped groove is formed in the fixed base, the connecting cover ring is of an arc-shaped rod structure, and one end of the connecting cover ring is rotatably connected to the fixed base.

Preferably, the one end that unable adjustment base was kept away from to the connection lid circle is fixed with the post of inserting, unable adjustment base has seted up the slot on, the slot sets up the one side at the arc recess, unable adjustment base has last seted up the circular port, circular port and slot intercommunication, and be provided with the bolt in the circular port, the bolt is T type structure, and the vertical pole one end of the T type structure of bolt passes through the round hole setting in the slot, and the horizon bar both ends of the T type structure of bolt pass through the spring to be fixed on unable adjustment base.

The invention has the beneficial effects that:

1. according to the invention, the main dialysis tube and the connecting dialysis tube are respectively fixed on the connection of the connecting component through the connecting outer tube, the sleeved inner tube and the holding component in the connecting component, so that the connection between the main dialysis tube and the connecting dialysis tube is stable.

2. According to the invention, the main dialysis tube and the connecting dialysis tube are clamped and fixed at two ends of the connecting component through the fixing components at two sides of the connecting component, so that the main dialysis tube and the connecting dialysis tube are prevented from being pulled off under the action of external force, and the safety is improved.

According to the invention, the main dialysis tube and the connecting dialysis tube are stably connected and fixed through the connecting assembly, and the main dialysis tube and the connecting dialysis tube are further clamped and fixed through the fixing assembly, so that the main dialysis tube and the connecting dialysis tube are prevented from being pulled off by external force, and the safety is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the connecting assembly shown in fig. 1.

Fig. 3 is a side view of the structure of fig. 2.

Fig. 4 is a side view of the structure of the connecting outer tube and the sleeved inner tube in fig. 3.

Figure 5 is a schematic structural view of the clasping assembly of figure 2.

Fig. 6 is a schematic structural view of the fixing assembly in fig. 1.

Fig. 7 is an enlarged view of a portion of the structure at the position a in fig. 6.

Reference numbers in the figures: 1 PMKD, 2 support posts, 3 coupling assembling, 4 main dialysis pipes, 5 connection dialysis pipes, 6 fixed subassembly, 7 support connecting rods, 8 connection outer tubes, 9 cup joint the inner tube, 10 hold the subassembly tightly, 11 sealing washers, 12 fixed recesses, 13 fixed staple bolts, 14 removal staple bolts, 15 first fixed plates, 16 second fixed plates, 17 locking screw, 18 butterfly thread insert, 19 guide arms, 20 coupling spring, 21 unable adjustment base, 22 connection lid circle, 23 insert the post, 24 slots, 25 bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-7, a catheter connecting device for hemodialysis comprises a fixed base plate 1, a main dialysis tube 4 and a connecting dialysis tube 5, wherein a supporting upright post 2 is connected above the fixed base plate 1, a connecting assembly 3 is fixed on the top of the supporting upright post 2, the connecting assembly 3 comprises a connecting outer tube 8, a sleeving inner tube 9 and two groups of holding assemblies 10, the sleeving inner tube 9 is arranged inside the connecting outer tube 8, the two groups of holding assemblies 10 are respectively arranged at two ends of the connecting outer tube 8, a sealing ring 11 is arranged inside the connecting outer tube 8, the sealing ring 11 is an O-shaped ring, the sealing ring 11 is sleeved on the sleeving inner tube 9, the holding assemblies 10 comprise a fixed hoop 13 and a movable hoop 14, fixed grooves 12 are respectively arranged on the inner walls of two ends of the connecting outer tube 8, the fixed hoop 13 is fixed on the inner bottom wall of the connecting outer tube 8, the movable hoop 14 is arranged in the fixed groove 12, the fixed hoop 13 and the movable hoop 14 are both in a C-shaped structure, the fixed hoop 13 and the C-shaped opening of the movable hoop 14 are arranged oppositely, a first fixing plate 15 is fixed at both ends of the C-shaped opening of the fixed hoop 13, a second fixing plate 16 is fixed at both ends of the C-shaped opening of the movable hoop 14, a locking screw 17 is connected on the first fixing plate 15, a butterfly-shaped screw sleeve 18 is fixed on the second fixing plate 16, the first fixing plate 15 and the second fixing plate 16 are connected by the matching of the butterfly-shaped screw sleeve 18 and the locking screw 17, one end of the movable hoop 14 far away from the fixed hoop 13 is connected with a guide rod 19 and a connecting spring 20, the guide rod 19 is provided with four groups, four guide holes are arranged on the connecting outer tube 8, one end of the guide rod 19 far away from the movable hoop 14 passes through the outer part of the connecting outer tube 8, one end of the connecting spring 20 far away from the movable hoop 14 on the movable hoop 14 is fixed on the inner bottom wall of the fixed groove, the main dialysis tube 4 and the connecting dialysis tube 5 are respectively connected to two ends of the connecting component 3, two groups of supporting connecting rods 7 are fixed above the fixed base plate 1, the two groups of supporting connecting rods 7 are respectively symmetrically arranged at two sides of the supporting upright post 2, the top of the supporting connecting rod 7 is fixed with the fixing component 6, the fixing component 6 comprises a fixed base 21 and a connecting cover ring 22, an arc-shaped groove is arranged on the fixed base 21, the connecting cover ring 22 is in an arc-shaped rod structure, one end of the connecting cover ring 22 is rotatably connected to the fixed base 21, one end of the connecting cover ring 22 far away from the fixed base 21 is fixed with an inserting post 23, an inserting slot 24 is arranged on the fixed base 21, the inserting slot 24 is arranged at one side of the arc-shaped groove, a circular hole is arranged on the fixed base 21 and communicated with the inserting slot 24, a bolt 25 is arranged in the circular hole, the bolt 25 is in a T-shaped structure, one end, and both ends of the horizontal rod of the T-shaped structure of the plug 25 are fixed on the fixed base 21 by springs.

The working principle is as follows: when the invention is used, a main dialysis tube 4 and a connecting dialysis tube 5 are connected through a connecting component 3, particularly, the main dialysis tube 4 and the connecting dialysis tube 5 are inserted into a connecting outer tube 8 in the connecting component 3 in half, and are sleeved on a sleeved inner tube 9, the main dialysis tube 4 and the connecting dialysis tube 5 are connected and fixed through a holding component 10, particularly, when the main dialysis tube 4 and the connecting dialysis tube 5 are inserted into the connecting outer tube 8, the main dialysis tube 4 and the connecting dialysis tube 5 are respectively inserted between a movable hoop 14 and a fixed hoop 13, the fixed hoop 13 and a first fixed plate 15 and a second fixed plate 16 connected on the movable hoop 14 are connected and fixed through the matching of a butterfly screw sleeve 18 and a locking screw rod 17, so that the movable hoop 14 is tensioned through the first fixed plate 15 and the second fixed plate 16, the main dialysis tube 4 and the connecting dialysis tube 5 are tightly sleeved on the outer part of the connecting hoop 9 and the inner part of the connecting hoop 8 through the fixed hoop 13 and the movable hoop 14, and the connection sealing performance between the main dialysis tube 4 and the connection dialysis tube 5 and the sleeving inner tube 9 and the connection outer tube 8 is better and the connection is more stable through the sealing ring 11.

In addition, the main dialysis tube 4 and the connecting dialysis tube 5 are further fixed above the fixed base plate 1 by the fixing component 6, specifically, the main dialysis tube 4 and the connecting dialysis tube 5 are respectively placed in the fixing grooves on the fixed base 21 in the fixing component 6, the connecting cover ring 22 is arranged above the main dialysis tube 4 and the connecting dialysis tube 5 by rotating the connecting cover ring 22, the inserting columns 23 connected on the connecting cover ring 22 are inserted into the inserting grooves 24 on the fixed base 21 and are inserted into the fixing holes on the inserting columns 23 by the inserting pins 25, the inserting columns 23 are inserted and fixed, so that the connecting cover ring 22 is fixed, the main dialysis tube 4 and the connecting dialysis tube 5 are further fixed at two ends of the connecting component 3, thereby facilitating the connection of the main dialysis tube 4 and the connecting dialysis tube 5, and making the fixation of the main dialysis tube 4 and the connecting dialysis tube 5 stable, after the main dialysis tube 4 and the connecting dialysis tube 5 are connected, can not be pulled and fall off by external force, and ensures the safety.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a pipe connecting device for hemodialysis, includes PMKD (1), main dialysis tubing (4), connects dialysis tubing (5), its characterized in that, the top of PMKD (1) is connected with support post (2), the top of support post (2) is fixed with coupling assembling (3), main dialysis tubing (4) and connection dialysis tubing (5) are connected respectively at the both ends of coupling assembling (3), the top of PMKD (1) is fixed with two sets of supporting connecting rod (7), and is two sets of supporting connecting rod (7) symmetry respectively sets up in the both sides of support post (2), and the top of supporting connecting rod (7) is fixed with fixed subassembly (6).

2. The catheter connecting device for hemodialysis according to claim 1, wherein the connecting assembly (3) comprises an outer connecting tube (8), an inner sleeving tube (9) and two clasping assemblies (10), the inner sleeving tube (9) is disposed inside the outer connecting tube (8), and the clasping assemblies (10) are disposed in two groups, and the two clasping assemblies (10) are disposed at two ends of the outer connecting tube (8) respectively.

3. The catheter connecting device for hemodialysis according to claim 2, wherein a sealing ring (11) is disposed inside the outer connecting tube (8), the sealing ring (11) is an O-ring, and the inner connecting tube (9) is sleeved with the sealing ring (11).

4. The catheter connecting device for hemodialysis according to claim 2, wherein the clasping assembly (10) comprises a fixing hoop (13) and a moving hoop (14), the inner walls of both ends of the connecting outer tube (8) are respectively provided with a fixing groove (12), the fixing hoop (13) is fixed on the inner bottom wall of the connecting outer tube (8), and the moving hoop (14) is arranged in the fixing groove (12).

5. The catheter connecting device for hemodialysis according to claim 1, wherein the fixed hoop (13) and the movable hoop (14) are both C-shaped, the fixed hoop (13) and the C-shaped opening of the movable hoop (14) are disposed opposite to each other, the first fixing plate (15) is fixed to both ends of the C-shaped opening of the fixed hoop (13), and the second fixing plate (16) is fixed to both ends of the C-shaped opening of the movable hoop (14).

6. A catheter connecting device for hemodialysis according to claim 5, wherein a locking screw (17) is connected to the first fixing plate (15), a butterfly nut (18) is fixed to the second fixing plate (16), and the first fixing plate (15) and the second fixing plate (16) are connected to each other by the butterfly nut (18) and the locking screw (17).

7. The catheter connecting device for hemodialysis according to claim 4, wherein the end of the movable hoop (14) away from the fixed hoop (13) is connected with guide rods (19) and connecting springs (20), the guide rods (19) are provided in four groups, the connecting outer tube (8) is provided with four groups of guide holes, and the end of the guide rods (19) away from the movable hoop (14) passes through the guide holes and is disposed outside the connecting outer tube (8).

8. The catheter connecting device for hemodialysis of claim 7, wherein an end of the connecting spring (20) of the movable anchor ear (14) away from the movable anchor ear (14) is fixed on an inner bottom wall of the fixing groove (12) in the connecting outer tube (8).

9. The catheter connecting device for hemodialysis according to claim 1, wherein the fixing assembly (6) comprises a fixing base (21) and a connecting cover ring (22), the fixing base (21) is provided with an arc-shaped groove, the connecting cover ring (22) is of an arc-shaped rod structure, and one end of the connecting cover ring (22) is rotatably connected to the fixing base (21).

10. The catheter connecting device for hemodialysis as defined in claim 9, wherein an insertion post (23) is fixed to one end of the connecting cover ring (22) far away from the fixing base (21), a slot (24) is formed in the fixing base (21), the slot (24) is disposed on one side of the arc-shaped groove, a circular hole is formed in the fixing base (21), the circular hole is communicated with the slot (24), a pin (25) is disposed in the circular hole, the pin (25) is of a T-shaped structure, one end of a vertical rod of the T-shaped structure of the pin (25) is disposed in the slot through the circular hole, and two ends of a horizontal rod of the T-shaped structure of the pin (25) are fixed to the fixing base (21) through springs.