CN102125456A - Novel artery puncture trocar - Google Patents

Abstract

A new arterial puncture trocar, comprising a needle tube and a needle core, one end of the needle core is connected with a detachable needle handle, and the needle handle is connected with a needle core cap; the needle tube can be replaced and worn on the needle Outside the core, the needle tip of the needle core is exposed outside the needle tube. The beneficial effect of the present invention is that the puncture success rate is high, and the puncture is safer and more convenient.

Description

A New Artery Puncture Trocar

technical field

The invention relates to a medical device, in particular to a novel arterial puncture trocar which can be used for radial artery and femoral artery puncture.

Background technique

At present, the radial artery puncture catheter is often used in clinical monitoring of direct arterial blood pressure, and the puncture needle is a 20GA trocar. In case of massive bleeding, emergency rescue, etc., the radial artery cannot be touched or dissected aneurysm, etc. It is necessary to open the lower extremity artery (often the femoral artery). Because of the deep position of the femoral artery, the part of the 20GA trocar entering the blood vessel is limited, and the puncture needle often slips and is difficult to fix. However, there is currently no dedicated femoral artery puncture needle. In addition, during puncture, it is often encountered that the blood return of the needle core is very good, but the needle tube is damaged and hairy and cannot be inserted into the blood vessel. The needle core and needle tube can only be pulled out together and punctured again, which wastes time and reduces the time required for clinicians to puncture. The success rate of the disease also increased the pain to the patient, and even aggravated the condition.

Contents of the invention

The invention solves the problem that the existing puncture needle needs to be re-punctured when the needle tube is damaged, and provides a novel arterial puncture trocar that does not need to be re-punctured when the needle tube is damaged.

Technical scheme of the present invention:

A novel arterial puncture trocar, comprising a needle tube and a needle core, characterized in that: a detachable needle handle is connected to one end of the needle core, and a needle core cap is connected to the needle handle; the needle tube can be replaced The needle core is worn outside the needle core, and the needle tip of the needle core is exposed outside the needle tube.

Further, the diameter of the needle tube is 1.1mm, and its length is 48mm-63mm.

Further, the needle tube is 1.5mm shorter than the needle core.

The technical idea of the present invention is to make the needle tube into various specifications, and the length of the needle tube can be 48mm, 53mm, 58mm, 63mm. Needle tubes of different lengths solve the problems that the puncture needle often encounters during femoral artery puncture slips and is difficult to fix, making femoral artery puncture safer and more convenient.

Since the needle core and the needle handle are detachable, when the blood return to the needle core is good during puncture, but the needle tube cannot be inserted into the blood vessel due to damage and hair, the needle handle can be pulled out from the needle core to remove the damaged needle. The old needle tube is also pulled out, and then a new needle tube is threaded outside the needle core and then inserted into the blood vessel. In this way, when the needle tube is damaged, the patient does not need to be punctured again, which relieves the patient's pain.

The present invention is an arterial trocar needle used for puncturing when the direct blood pressure of the patient needs to be monitored in the anesthesiology department, intensive care department, emergency department and the like.

The intentional effect of the present invention is that the puncture success rate is high, and the puncture is safer and more convenient.

Description of drawings

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

Fig. 2 is a schematic diagram of the structure of the needle tube of the present invention.

Fig. 3 is a schematic diagram of the needle core structure of the present invention.

Detailed ways

Referring to Figures 1-3, a new arterial puncture trocar includes a needle tube 1 and a needle core 2, one end of the needle core 2 is connected with a detachable needle handle 3, and the needle handle 3 is connected with a needle core cap 4. The needle tube 1 is replaceably worn outside the needle core 2 , and the needle tip of the needle core 2 is exposed outside the needle tube 1 .

The diameter of the needle tube 1 is 1.1mm, and its length is 48mm-63mm.

The needle tube 1 is 1.5 mm shorter than the needle core 2 .

The technical idea of the present invention is to make the needle tube 1 into various specifications, and the length of the needle tube 1 can be 48mm, 53mm, 58mm, or 63mm. Needle tubes of different lengths solve the problems that the puncture needle often encounters during femoral artery puncture slips and is difficult to fix, making femoral artery puncture safer and more convenient.

Since the needle core 2 and the needle handle 3 are detachable, when the blood return to the needle core 2 is good during puncture, but the needle tube 1 cannot be inserted into the blood vessel due to damage and hair, the needle handle 3 can be removed from the needle core 2 Pull out the damaged needle tube 1, and then put a new needle tube 1 through the outside of the needle core 2 and then insert it into the blood vessel. In this way, when the needle tube 1 is damaged, the patient does not need to be punctured again, which relieves the patient's pain.

The content described in the embodiments of this specification is only an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the present invention also extends to the field Equivalent technical means that the skilled person can think of based on the concept of the present invention.

Claims (3)

1. a novel arterypuncture trocar comprises needle tubing, nook closing member, it is characterized in that: an end of described nook closing member is connected with dismountable needle handle, is connected with the nook closing member medicated cap on the described needle handle; Described needle tubing is removable to be set on outside the nook closing member, and the needle tip of described nook closing member exposes outside needle tubing.

2. a kind of novel arterypuncture trocar according to claim 1, it is characterized in that: described needle tubing diameter is 1.1mm, and its length is 48mm-63mm.

3. a kind of novel arterypuncture trocar according to claim 1 and 2 is characterized in that: described needle tubing is than the short 1.5mm of nook closing member.

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