CN202876064U

CN202876064U - Expansion tube for central vein punctures

Info

Publication number: CN202876064U
Application number: CN 201220365574
Authority: CN
Inventors: 刘勇
Original assignee: Suzhou Ruihua Hospital Co Ltd
Current assignee: Suzhou Ruihua Hospital Co Ltd
Priority date: 2012-07-26
Filing date: 2012-07-26
Publication date: 2013-04-17
Anticipated expiration: 2022-07-26

Abstract

The utility model relates to an expansion tube for central vein puncture, which comprises a needle tube and a needle seat; one end of the needle tube is arranged on the needle seat; the other end of the needle tube is a needle point; the needle point is set in a conical shape; the needle tube The inner hole of the needle is connected with the inner hole of the needle holder; the end of the needle tip is provided with an outlet; the outlet is connected with the inner hole of the needle tube; the outer diameter of the needle tube is 1.5-2.5mm; the central vein of the utility model scheme The dilation tube for puncture, the needle tube and the needle tube of the central venous puncture needle used together with it are marked with scales. When using the dilation tube to expand the puncture path, the insertion depth of the dilation tube can be accurately grasped according to the puncture depth of the central venous puncture needle. depth, so that the puncture path can be expanded thoroughly, and the central venous catheter can be inserted more smoothly; the expansion tube for central venous puncture of the utility model can accurately grasp the depth of the expansion tube expansion puncture path, and reduce the difficulty of central venous catheter placement caused by incomplete expansion. The incidence rate is high, avoiding the injury and pain that repeated puncture catheterization increases to the patient.

Description

A kind of central venous puncture convergent divergent channel

Technical field

This utility model relates to a kind of central venous puncture convergent divergent channel, a kind of degree of depth that can accurately hold convergent divergent channel dilated penetration pathway particularly, reduced and expanded the incidence rate that does not thoroughly cause the hub venous catheter posting difficulty, avoid repeated localised puncture to put pipe to damage and painful improved central venous puncture convergent divergent channel that patient increases, belonged to the medical equipment technical field.

Background technology

At present clinically, the method for the capable central venous puncture of central venous puncture apparatus commonly used (take the puncture of way of escape right internal jugular vein as example): 1) patient's dorsal position, head deflection left side, the site of puncture routine disinfection spreads hole towel; 2) two horizontal finger places are point of puncture on selection sternocleidomastoid Clavicle Head trailing edge and the clavicle, local anesthesia; 3) connect No. 7 pins to the puncture of sternoclavicular joint direction with the 5ml syringe, needle body keeps horizontal position, and syringe keeps negative pressure; 4) the syringe pumpback is to kermesinus blood and unobstructed, determine that puncture needle is at internal jugular vein, withdraw from No. 7 pins or fix No. 7 pins and unload simultaneously syringe, connect the 18G draw point along the direction puncture of No. 7 pins with the blue syringe of 5ml in addition, pumpback is to kermesinus blood and unobstructed, determine puncture needle at internal jugular vein, insert seal wire 250mm through blue syringe afterbody; 5) fixing seal wire withdraws from the 18G draw point, inserts convergent divergent channel dilated penetration point skin to blood vessel by seal wire---the puncture pathway; 6) fixing seal wire withdraws from convergent divergent channel, inserts central venous catheter 120mm by seal wire; 7) A/C, medical dressing, pad pasting cover the site of puncture, and conduit connects the infusion strap transfusion.

As mentioned above, use the at present clinical capable central venous puncture of central venous puncture apparatus commonly used, with convergent divergent channel dilated penetration pathway the time, the degree of depth that can only lean on the eye estimate convergent divergent channel to expand, cause easily the expansion of puncture pathway not thorough, resistance is larger when causing hub venous catheter posting, even conduit can not be inserted smoothly, and repeated localised puncture is put pipe must increase the misery that damage increases patient.

The utility model content

This utility model purpose is that a kind of degree of depth that can accurately hold convergent divergent channel dilated penetration pathway is provided in order to overcome the deficiencies in the prior art, reduced and expanded the incidence rate that does not thoroughly cause the hub venous catheter posting difficulty, avoided repeated localised puncture to put damage and painful improved central venous puncture convergent divergent channel that pipe increases to patient.

For achieving the above object, the technical solution adopted in the utility model is: a kind of central venous puncture convergent divergent channel comprises needle tubing, needle stand; One end of described needle tubing is arranged on the needle stand; The other end of described needle tubing is needle point; Described needle point is arranged to taper shape; The endoporus of described needle tubing is communicated with the endoporus of needle stand; The end of described needle point is provided with outlet; Described outlet is communicated with the endoporus of needle tubing; The external diameter of described needle tubing is 1.5-2.5mm; Be provided with scale on the described needle tubing.

Preferably, described needle tubing adopts medical plastic to make.

Preferably, the length of described needle tubing is 40-60 mm.

Preferably, the external diameter of described outlet is 0.7-1.2mm.

Preferably, described needle stand adopts transparent medical engineering plastics to make, and observes during convenient operation.

Because the utilization of technique scheme, this utility model compared with prior art has following advantages:

The central venous puncture convergent divergent channel of this utility model scheme, its needle tubing and therewith the needle tubing of matching used central vein puncture needle all be marked with scale, when using convergent divergent channel dilated penetration pathway, can accurately hold the degree of depth that convergent divergent channel is inserted, make the expansion of puncture pathway thoroughly, hub venous catheter posting is more smooth; Use central venous puncture of the present utility model can accurately hold the degree of depth of convergent divergent channel dilated penetration pathway with convergent divergent channel, reduced and expanded the incidence rate that does not thoroughly cause the hub venous catheter posting difficulty, avoided repeated localised puncture to put damage and misery that pipe increases to patient.

Description of drawings

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Accompanying drawing 1 is the front view that central venous puncture of the present utility model is used convergent divergent channel;

Wherein: 1, needle tubing; 2, needle stand; 3, needle point.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

Accompanying drawing 1 is depicted as a kind of central venous puncture convergent divergent channel described in the utility model, comprises needle tubing 1, needle stand 2; One end of described needle tubing 1 is arranged on the needle stand 2; The other end of described needle tubing 1 is needle point 3; Described needle point 3 is arranged to taper shape; The endoporus of described needle tubing 1 is communicated with the endoporus of needle stand 2; The end of described needle point 3 is provided with the outlet (not shown); Described outlet is communicated with the endoporus of needle tubing 1; The external diameter of described needle tubing 1 is 1.8mm; Be provided with scale on the described needle tubing 1; Described needle tubing 1 adopts medical plastic to make; The length of described needle tubing 1 is 50mm; The external diameter of described outlet is 1.0mm; Described needle stand 2 adopts transparent medical engineering plastics to make, and observes during convenient operation.

Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within this utility model rights protection scope.

Claims

1. A dilation tube for central venous puncture, comprising a needle tube and a needle holder; it is characterized in that: one end of the needle tube is arranged on the needle holder; the other end of the needle tube is a needle point; the needle point is set to a conical shape; The inner hole of the needle tube communicates with the inner hole of the needle holder; the end of the needle tip is provided with an outlet; the outlet communicates with the inner hole of the needle tube; the outer diameter of the needle tube is 1.5-2.5 mm; There are scales. the

2. The expansion tube for central venous puncture according to claim 1, wherein the needle tube is made of medical plastic.

3. The expansion tube for central venous puncture according to claim 1, characterized in that: the length of the needle tube is 40-60 mm.

4. The expansion tube for central venous puncture according to claim 1, characterized in that: the outer diameter of the outlet is 0.7-1.2mm.

5. The expansion tube for central venous puncture according to claim 1, characterized in that: the needle seat is made of transparent medical engineering plastics, which is convenient for observation during operation.