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US 2018/0280003 A1Published application
Spiral soft tissue biopsy needle
OwnerShihui CHEN, Xinru DUinventors
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OwnerShihui CHEN, Xinru DUinventors
Estimating the term…
Provided is a spiral soft tissue biopsy needle, comprising a puncture needle rod (1), a sampling needle rod (2), and a hand shank (3) for fixing the puncture needle rod (1) and the sampling needle rod (2), wherein the sampling needle rod (2) comprises a spiral needle rod (21) for fixing the sampling site and a cutting needle rod (22) for separating the sample from the sampling site, the spiral needle rod (21) has a hollow structure, the front end of the spiral needle rod (21) is provided with a spring spiral tube (211), and the front end of the cutting needle rod (22) is provided with a cutting edge (221). The spiral soft tissue biopsy needle of the present invention can improve the success rate of one-time sampling and achieve a multi-point sampling in different positions.
A spiral soft tissue biopsy needle, comprising a puncture needle rod (1), a sampling needle rod (2), and a hand shank (3) for fixing the puncture needle rod (1) and the sampling needle rod (2), wherein the sampling needle rod (2) comprises a spiral needle rod (21) for fixing the sampling site and a cutting needle rod (22) for separating the sample from the sampling site, the spiral needle rod (21) has a hollow structure, the cutting needle rod (22) is arranged on the outer side of the spiral needle rod (21) and the inner surface of the cutting needle rod (22) is in close contact with the outer surface of the spiral needle rod (21), the front end of the spiral needle rod (21) is provided with a spring spiral tube (211), and the front end of the cutting needle rod (22) is provided with a cutting edge (221).
A spiral soft tissue biopsy needle, comprising a puncture needle rod (1), a sampling needle rod (2) and a hand shank (3) for fixing the puncture needle rod (1) and the sampling needle rod (2), wherein the sampling needle rod (2) comprises a spiral needle rod (21) for fixing the sampling site and a cutting needle rod (22) for separating the samples from the sampling site, the spiral needle rod (21) has a hollow structure, the cutting needle rod (22) is arranged on the inner side of the spiral needle rod (21) and the inner surface of the cutting needle rod (22) is in close contact with the inner surface of the spiral needle rod (21), the front end of the spiral needle rod (21) is provided with a spring spiral tube (211), and the front end of the cutting needle rod (22) is provided with a cutting edge (221).
A method of using a spiral soft tissue biopsy needle, comprising the following steps:
A spiral soft tissue biopsy needle, comprising a puncture needle rod (1), a sampling needle rod (2), a hand shank (3) for fixing the puncture needle rod (1) and the sampling needle rod (2) and an end cutter (9) arranged on the outer side of the front end of the sampling needle rod (2), the sampling needle rod (2) comprises a spiral needle rod (21) for fixing the sampling site and a cutting needle rod (22) for separating the sample from the sampling site, the spiral needle rod (21) has a hollow structure, the cutting needle rod (22) is arranged on the outer side of the spiral needle rod (21) and the inner surface of the cutting needle rod (22) is in close contact with the outer surface of the spiral needle rod (21), the front end of the spiral needle rod (21) is provided with a spring spiral tube (211), and the front end of the cutting needle rod (22) is provided with a cutting edge (221), the end cutter (9) is arranged on the outer side of the cutting edge (221).
Dependencies are inferred from the claim text.