CN217938903U

CN217938903U - Connection structure of blood drawing needle head and blood purification deep venous catheter

Info

Publication number: CN217938903U
Application number: CN202221437338.XU
Authority: CN
Inventors: 张腊梅
Original assignee: Yangzhou Hospital Of Tcm
Current assignee: Yangzhou Hospital Of Tcm
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-12-02
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses a connection structure of blood drawing syringe needle and dark ductus venosus of blood purification, include: a middle connecting pipe; the blood drawing tube socket and the venous catheter plug are respectively arranged at two ends of the middle connecting tube. This kind of draw blood syringe needle and blood purification deep ductus venosus's connection structure, insert the deep ductus venosus slot department with the male connector, then, the inside of the syringe needle end insertion socket pipe of the syringe needle of drawing blood, the piston of backward pull syringe needle, can be with the inside blood of human body through deep ductus venosus, the ductus venosus plug, the middle part connecting pipe with draw the vascular socket after get into the cylinder, at this moment, through installing a connection structure additional, make the syringe needle of drawing blood can be directly and deep ductus venosus between be connected, can directly take blood out through deep ductus venosus, need not to insert new syringe needle again on one's body at the patient and draw blood, and, the realization is carried out the fixed point through deep ductus venosus and is drawn blood.

Description

Connection structure of blood drawing needle head and blood purification deep venous catheter

Technical Field

The utility model relates to a medical field specifically is a connection structure of blood drawing syringe needle and dark ductus venosus of blood purification.

Background

When patients are treated in hospitals, a deep venous catheter is required to be inserted into the body of part of patients for assisting the implementation of related medical operations, and the deep venous catheter is often a detention tube and can be recycled.

After inserting dark ductus venosus, when needs carry out the blood test to patient, the part needs directly to draw blood through dark ductus venosus operation, and is more accurate and also need not to insert the syringe needle newly, but, the needle tubing end that present cylinder was drawn blood can't directly carry out inseparable contact with the slot department of dark ductus venosus, has great gap, is unfavorable for the going on of drawing blood.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a draw blood syringe needle and blood purification dark ductus venosus's connection structure to solve the problem that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a connection structure of a blood drawing needle and a blood purification deep venous catheter comprises:

a middle connecting pipe;

the blood drawing tube socket and the venous catheter plug are respectively installed at two ends of the middle connecting tube, the blood drawing tube socket comprises a socket tube, one side of the socket tube, which is close to the middle connecting tube, is penetrated through a second through hole communicated with the inside of the middle connecting tube, and the venous catheter plug comprises a plug tube which is used for being connected with a deep venous catheter in an inserting mode.

As a further aspect of the present invention: the plug comprises a plug tube and is characterized in that first sealing rings are bonded on two sides of the outer wall of the plug tube, and a retaining ring block is sleeved on one side, close to a middle connecting tube, of the outer wall of the plug tube.

As a further aspect of the present invention: the inner wall surface of the plug pipe is provided with a second antibacterial layer, and the outer wall surface of the first sealing ring is provided with a first antibacterial layer.

As a further aspect of the present invention: and the fourth antibacterial layer is avoided being arranged in the socket pipe, and one side of the fourth antibacterial layer, which is close to the second through hole, is provided with a first through hole with the diameter consistent with that of the second through hole in a penetrating manner.

As a further aspect of the present invention: and two sides of the interior of the antibacterial layer II are respectively provided with a sealing ring II in a bonding manner, and the outer wall surface of the sealing ring II is provided with an antibacterial layer III.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses, insert dark ductus venosus slot department with the plug pipe, then, the inside of socket pipe is inserted to the syringe needle end that will draw the blood cylinder, the piston of pull cylinder backward, can be with human inside blood through dark ductus venosus, the ductus venosus plug, the middle part connecting pipe with draw the blood vessel socket after in getting into the cylinder, at this moment, through installing a connection structure additional, make to draw the blood cylinder can be directly and be connected between the dark ductus venosus, can directly take blood out through dark ductus venosus, need not to insert new syringe needle again on one's body at the patient and draw blood, and, the realization is carried out the fixed point through dark ductus venosus.

2. The utility model discloses, when plug pipe and dark vein catheter slot are connected, make plug pipe and slot department closely and sealed be connected through sealing washer one, on the same principle, make through sealing washer two and carry out closely and sealed being connected between the syringe needle end of cylinder and the socket pipe, it is sealed effectual to antibiotic layer one, antibiotic layer two, antibiotic layer three all adopt the antibiotic epoxy powder material of nanometer to make with antibiotic layer four, improved its bacterinertness, do benefit to and avoid bacterial contamination to breed.

Drawings

FIG. 1 is a schematic structural view of a connection structure of a blood drawing needle and a blood purification deep venous catheter;

FIG. 2 is a sectional view of a plug tube in a connection structure of a blood drawing needle and a blood purifying deep venous catheter;

fig. 3 is a sectional view of a hub tube in a connection structure of a blood drawing needle and a blood purifying deep venous catheter.

In the figure: the middle connecting pipe 1, the blood drawing pipe socket 2, the venous catheter plug 3, the first antibacterial layer 4, the plug pipe 5, the second antibacterial layer 6, the first sealing ring 7, the retainer ring block 8, the first through hole 9, the second through hole 10, the third antibacterial layer 11, the fourth antibacterial layer 12, the socket pipe 13 and the second sealing ring 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution, a connection structure of a blood drawing needle and a blood purifying deep venous catheter, comprising:

a middle connecting pipe 1;

draw blood vessel socket 2 and venous catheter plug 3, draw blood vessel socket 2 and venous catheter plug 3 and install the both ends at middle part connecting pipe 1 respectively, and draw between blood vessel socket 2 and the venous catheter plug 3 through middle part connecting pipe 1 intercommunication, draw blood vessel socket 2 including socket pipe 13, and socket pipe 13 keeps away from one side of middle part connecting pipe 1 and is uncovered form, socket pipe 13 runs through the through-hole two 10 of seting up with the inside intercommunication of middle part connecting pipe 1 near one side of middle part connecting pipe 1, venous catheter plug 3 is including being used for the plug pipe 5 with dark ductus venosus grafting, through installing a connection structure additional, make and draw the blood syringe can be directly and be connected between the dark ductus venosus, can directly take blood out through dark ductus venosus, need not to insert new syringe needle again on the patient and draw blood, and, realize drawing blood through dark ductus venosus fixed point.

The sealing rings 7 are bonded to the two sides of the outer wall of the plug pipe 5, when the plug pipe 5 is connected with the deep venous catheter slot, the plug pipe 5 is connected with the slot in an tight and sealed mode through the sealing rings 7, and the ring blocking block 8 is sleeved on the outer wall of the plug pipe 5 and one side, close to the middle connecting pipe 1, of the plug pipe.

The inner wall surface of the plug tube 5 is provided with a second antibacterial layer 6, and the outer wall surface of the first sealing ring 7 is provided with a first antibacterial layer 4.

The socket pipe 13 is internally provided with the fourth antibacterial layer 12 in an avoiding way, one side of the fourth antibacterial layer 12 close to the second through hole 10 is provided with a first through hole 9 with the diameter consistent with that of the second through hole 10 in a penetrating way, and the center points of the first through hole 9 and the second through hole 10 are positioned on the same straight line.

The two sides inside the fourth antibacterial layer 12 are all bonded with the second sealing ring 14, the needle end of the needle cylinder is tightly and hermetically connected with the socket pipe 13 through the second sealing ring 14, the outer wall surface of the second sealing ring 14 is provided with the third antibacterial layer 11, the antibacterial layer is made of nanometer antibacterial epoxy powder, the first antibacterial layer 4, the second antibacterial layer 6, the third antibacterial layer 11 and the fourth antibacterial layer 12 are made of nanometer antibacterial epoxy powder materials, the antibacterial property of the antibacterial layer is improved, and bacterial pollution breeding is avoided.

The utility model discloses a theory of operation is:

when in use, the utility model is used,

the connecting structure adopts single aseptic package, is a disposable product and is not recycled;

opening the disposable packaging bag, inserting the plug tube 5 into the slot of the deep venous catheter, wherein the first sealing ring 7 is tightly attached to the inner wall surface of the slot, then inserting the needle head end of the blood drawing syringe into the socket tube 13, the needle head end is abutted against the fourth antibacterial layer 12, the second sealing ring 14 is tightly attached to the outer wall surface of the needle head end, and then pulling the piston of the syringe backwards, so that the blood in the human body can enter the syringe through the deep venous catheter, the venous catheter plug 3, the middle connecting tube 1 and the blood drawing tube socket 2;

when the plug tube 5 is connected with the deep venous catheter slot, the plug tube 5 is tightly and hermetically connected with the slot through the first sealing ring 7, and similarly, the needle end of the needle cylinder is tightly and hermetically connected with the socket tube 13 through the second sealing ring 14, so that the sealing effect is good;

and the first antibacterial layer 4, the second antibacterial layer 6, the third antibacterial layer 11 and the fourth antibacterial layer 12 are all made of nano antibacterial epoxy powder materials, so that the antibacterial property of the composite antibacterial material is improved, and the composite antibacterial material is favorable for avoiding bacterial pollution breeding.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a draw blood syringe needle and blood purification dark ductus venosus's connection structure which characterized in that: the method comprises the following steps:

a middle connecting pipe (1);

draw blood vessel socket (2) and venous catheter plug (3), draw blood vessel socket (2) and venous catheter plug (3) and install respectively at the both ends of middle part connecting pipe (1), draw blood vessel socket (2) including socket pipe (13), one side that socket pipe (13) are close to middle part connecting pipe (1) runs through and sets up two (10) of through-hole with the inside intercommunication of middle part connecting pipe (1), venous catheter plug (3) are including being used for plug pipe (5) of pegging graft with dark venous catheter.

2. The structure of claim 1, wherein the blood drawing needle is connected with the blood purifying deep venous catheter, and the structure comprises: sealing rings I (7) are bonded to two sides of the outer wall of the plug pipe (5), and a blocking ring block (8) is sleeved on the outer wall of the plug pipe (5) and one side, close to the middle connecting pipe (1).

3. The structure of claim 2, wherein the blood drawing needle is connected with the blood purifying deep venous catheter, and the structure comprises: the inner wall surface of the plug tube (5) is provided with a second antibacterial layer (6), and the outer wall surface of the first sealing ring (7) is provided with a first antibacterial layer (4).

4. The structure of claim 1, wherein the blood drawing needle is connected with the blood purifying deep venous catheter, and the structure comprises: the socket pipe (13) is internally provided with an antibacterial layer IV (12) in an avoiding way, and one side of the antibacterial layer IV (12) close to the through hole II (10) is provided with a through hole I (9) with the diameter consistent with that of the through hole II (10) in a penetrating way.

5. The structure of claim 4, wherein the blood drawing needle is connected with the blood purifying deep venous catheter, and the structure comprises: and two sides of the interior of the fourth antibacterial layer (12) are respectively provided with a second sealing ring (14) in a bonding manner, and the outer wall surface of the second sealing ring (14) is provided with a third antibacterial layer (11).