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Safe trocar

A trocar, safe technology, used in the field of medical devices to solve problems such as infection, accidental injury of medical staff and patients

Pending Publication Date: 2018-05-25
JIANGSU YANG PU MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a safe trocar to solve the problem that the current trocar is easy to cause accidental injury and infection to medical staff and patients

Method used

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  • Safe trocar
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Examples

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Comparison scheme
Effect test

Embodiment 1

[0061] Such as figure 1 As shown, this embodiment provides a safety trocar, including: a catheter base 1 , an indwelling catheter 2 , a safety device 13 , a needle base 3 and a puncture needle 4 .

[0062] The safety device 13 includes: a front shell 5 , a rear shell 6 , a rotating piece 7 , a rotating shaft 8 , a spring 9 and a limiting piece 10 .

[0063] The indwelling catheter 2 is arranged on the front end of the catheter adapter 1 ; the safety device 13 is connected to the catheter adapter 1 ; the needle hub 3 is connected to the safety device 13 .

[0064] The safety device 13 is provided with a front wall, a rear wall and a side wall, and the front wall, the rear wall and the side wall form a needle tip accommodation cavity; the front wall is provided with a front through hole, and the rear wall is provided with a rear through hole; one end of the puncture needle 4 is connected As for the needle hub 3 , the other end passes through the front through hole and the back th...

Embodiment 2

[0070] This embodiment provides a safety trocar, the trocar in this embodiment is similar to the trocar in Embodiment 1, the difference is:

[0071] In this embodiment, the needle holder includes: a handle portion of the handle, a connection portion of the handle and a detachment portion of the handle, and a connection portion of the handle is provided between the handle portion of the handle and the detachment portion of the handle;

[0072] An external thread is provided on the outer surface of the rear shell, and an internal thread matching the external thread is provided on the inner surface of the needle handle release part;

[0073] Point-shaped protrusions are arranged on the outer surface of the handle part of the needle handle.

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PUM

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Abstract

The invention discloses a safe trocar. The safe trocar comprises a catheter base, an indwelling catheter, a safety device, a needle base and a puncture needle. The safety device is provided with a front wall, a rear wall and a side wall; the front wall, the rear wall and the side wall form a needle tip containing chamber; the front wall is provided with a front through hole, and the rear wall is provided with a rear through hole; one end of the puncture needle is connected to the needle base, and the other end of the puncture needle passes through the front through hole and the rear through hole and is exposed out of a head end of the indwelling catheter. According to the trocar, the needle tip of the puncture needle can be automatically locked in the needle tip containing chamber to ensure that medical staff or other people are not punctured and prevent infection by the puncture needle which is stained with the blood of a patient.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a safety trocar. Background technique [0002] The trocar currently used clinically is mainly composed of a protective sleeve, a catheter, a steel needle, a catheter holder, a needle holder, an isolation plug, an extension tube, an infusion port, and a heparin cap. When in use, the medical staff first removes the protective cap covering the indwelling needle, and then uses the steel needle to puncture the catheter into the venous blood vessel. After seeing blood return and confirming that the puncture is successful, the steel needle is withdrawn and the catheter is used for infusion. The steel needle stained with the patient's blood is exposed outside, which may easily cause accidental injury and infection of medical staff and patients. [0003] In order to solve the above problems, the present invention urgently needs to develop a trocar that can prevent accidental injury and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3421A61B17/3496
Inventor 王冶李明竹邹最周苗陈原丽葛欣雨薛燕徐丽霞沈素萍
Owner JIANGSU YANG PU MEDICAL TECH
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