Magnetic ball sealing novel puncture device

Abstract

The invention discloses a novel magnetic-ball-sealed puncture machine. Sealing steel balls are arranged in a cavity of a front base of the invention, which are made of stainless steel and made into ahollow structure; a drip is arranged at the rear end of a rear base and a passage is arranged in the rear base; an opening at the front side edge of the passage is designed into a sealing opening. Thehollow sealing steel balls of the invention can be roll easily and freely in a regulated passage, thereby ensuring that the sealing steel balls are easy to leave the passage when a puncture needle ora surgical instrument is inserted into the passage, so as to ensure the entering of the surgical instrument, or ensuring that the sealing steel balls are easy to be moved into the passage when the puncture needle or the surgical instrument leaves the passage. In addition, the sealing steel balls can rotate in the process of opening and sealing and therefore, the sealing faces of the balls are uncertain, thus ensuring that the device is difficult to be worn and is quite durable.

Description

technical field [0001] The invention relates to a medical puncture device, in particular to a novel puncture device with a magnetic ball seal. Background technique [0002] The puncture device is an indispensable medical device in minimally invasive surgery, and its quality directly affects the speed of the operation process, the amount of carbon dioxide used, and whether the operation environment is ideal. In minimally invasive surgery, the abdominal cavity is usually filled with carbon dioxide gas to increase the space between the abdominal wall and internal organs, and the main function of the puncture device is to open and close the channel at will when surgical instruments enter and exit the cavity, and During the whole operation process, the carbon dioxide gas will not leak out, so that the operation can be carried out smoothly. In the prior art, the puncture device mainly uses a silicone sealing cap or a spring flip cover to control the passage of the cannula to prev...

AI Technical Summary

Problems solved by technology

In the prior art, the puncture device mainly uses a silicone sealing cap or a spring flip cover to control the passage of the cannula to prevent gas from leaking out. However, both of these two products have fatal flaws: the silicone seal is easy to age, has a short service life, and is prone to leakage. There are disadvantages such as air leakage, while the spring flip cover has disadvantages such as complex assembly structure, easy deformation of the spring, insufficient or broken elastic force, uneven force, easy to wear equipment, and easy air leakage.

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