CN102895730A

CN102895730A - Disposable central vein puncture kit

Info

Publication number: CN102895730A
Application number: CN2012104405258A
Authority: CN
Inventors: 刘华清
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-07
Filing date: 2012-11-07
Publication date: 2013-01-30

Abstract

The invention relates to the technical field of medical equipment, in particular to a disposable central vein puncture kit. At present, after a puncture needle penetrates through a central vein, a guide steel wire is arranged, the puncture needle is withdrawn, the skin is expanded through a skin expander, and a central vein catheter is arranged along the guide steel wire during domestic venous transfusion cathetering. The defects are that 1, the guide steel wire possibly touches the heart, so that arrhythmia is caused; 2, the skin is expanded through the skin expander, so that the guide steel wire is possibly bent, the catheter is difficult to arrange, and puncture fails; and 3, the catheter is thick, and the central venous catheter related infection probability is high. The disposable central vein puncture kit comprises a central vein catheter and a puncture needle, wherein a catheter sheath is arranged outside the puncture needle and has an easily torn breakage indentation. During use, the central vein catheter is arranged through the catheter sheath. The operation is easy, the guide steel wire is not required, the skin is not required to be expanded, the injury of a patient is lightened to a certain degree, and the related infection occurrence rate of the catheter is reduced.

Description

Disposable central venous puncture bag

Technical field

The present invention relates to technical field of medical instruments, specifically a kind of disposable central venous puncture bag.

Background technology

What adopt when at present, domestic venous transfusion is put pipe is the Seldinger method: puncture needle is placed first guide wire after penetrating central vein, withdraws from puncture needle again, expands skin with skin dilator, puts into central venous catheter along guide wire again.The shortcoming of the method is: 1, as putting into guide wire along puncture needle when long, guide wire may touch heart, very likely causes arrhythmia.2, need to expand skin along guide wire application skins based upon bidding dilator, when relatively poor such as puncture personnel technology, very likely cause guide wire crooked, conduit is inserted difficulty, thus puncture failure.3, conduit is thicker, and the central venous catheter-related infection probability is large.

Summary of the invention

The objective of the invention is to want to provide a kind of central vein puncture needle, can effectively solve the defective of above-mentioned prior art.

The technical solution adopted in the present invention is comprised of central venous catheter and puncture needle; There is a conduit epitheca puncture needle outside, and respectively there is the fracture impression of an easily openable conduit epitheca both sides or has both sides that the easy tear tape of fracture impression is arranged at the conduit epitheca; The central venous catheter afterbody has two to advance the medicine connector.

Further, conduit epitheca length is for being not less than 7cm, and internal diameter is 2.2 mm, and central venous catheter length is not less than 22 cm, and external diameter is 2mm.

The invention has the beneficial effects as follows: 1, without guide wire, need not to expand skin, alleviated to a certain extent the wound to patient, also reduced the incidence rate of catheter associated infection.2, insert from peelable conduit epitheca because of central venous catheter, comparable present conduit diameter is thin during the design conduit, also need not the hardness of present conduit, and namely conduit diameter is thin, soft, thereby improved patient's comfort level, reduced to a certain extent the incidence rate of catheter associated infection.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the puncture needle structure sketch map;

Fig. 3 is that embodiment 1 puncture needle conduit epitheca is torn view;

Fig. 4 is that the puncture needle conduit epitheca of embodiment 2 is torn view.

The specific embodiment

Among the figure: 1. central venous catheter, 2. puncture needle, 3. conduit epitheca.

Embodiment 1

From Fig. 1, Fig. 2, Fig. 3, as can be known, formed by central venous catheter 1 and puncture needle 2; There is a conduit epitheca 3 the puncture needle outside, and respectively there is the fracture impression of an easily openable conduit epitheca 3 both sides.Conduit epitheca 3 length are for being not less than 7cm, and internal diameter is 2.2 mm, and central venous catheter length is not less than 22 cm, and external diameter is 2mm, and afterbody has two to advance the medicine connector.The conduit epitheca is made by the higher medical apparatus and instruments plastics of hardness.

Embodiment 2

As can be known from Fig. 4, present embodiment has both sides that the easy tear tape of fracture impression is arranged at the conduit epitheca as different from Example 1.

During use, when puncture needle is thrust vein, its outside conduit epitheca penetrates into intravenous (prior art can realize) simultaneously, then withdraw from puncture needle, central venous catheter is inserted in the conduit epitheca, again the conduit epitheca is withdrawed from along central venous catheter, tear, take off from the fracture impression, as shown in Figure 2.Namely finish venous transfusion and put pipe.

Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give all embodiments exhaustive.Everyly belong to the row that apparent variation that technical scheme of the present invention extends out or change still are in protection scope of the present invention.

Claims

1. a disposable central venous puncture bag is characterized in that being comprised of central venous catheter (1) and puncture needle (2); There is a conduit epitheca (3) the puncture needle outside, and respectively there is the fracture impression of an easily openable conduit epitheca (3) both sides or has both sides that the easy tear tape of fracture impression is arranged at the conduit epitheca; The central venous catheter afterbody has two to advance the medicine connector.

2. a kind of disposable central venous puncture bag as claimed in claim 1 is characterized in that conduit epitheca (3) length for being not less than 7cm, and internal diameter is 2.2 mm, and central venous catheter (1) length is not less than 22 cm, and external diameter is 2mm.