Lung puncture biopsy device

A puncture biopsy and movable rod technology, applied in the field of medical devices, can solve the problems of increasing sampling difficulty, sample backflow, etc., and achieve the effects of facilitating replacement, preventing sample backflow, and preventing falling off

Inactive Publication Date: 2018-11-13
THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The hollow needle is used for puncture biopsy through negative pressure suction. After the hollow needle sucks the tissue, because the pressure in the cavity is negative pressure, the needle plug is easy to reset and the tissue is pushed out, causing the sample to flow back and increasing the difficulty of sampling.

Method used

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1-3 , the present invention provides a technical solution: comprising a syringe 1, a push rod 2 and a needle body 3, the interior of the syringe 1 is provided with a first fixing plate 4 and a second fixing plate 5, the first fixing plate 4 A liquid inlet pipe 6 and a liquid guide pipe 7 are installed on it, one end of the liquid inlet pipe 6 is installed on the outside of the syringe 1, and the second fixed plate 5 is installed on the side ...

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Abstract

The invention discloses a lung puncture biopsy device. The device comprises a syringe, a push rod and a needle body, a first fixing plate and a second fixing plate are arranged in the syringe, and a liquid inlet pipe and a liquid guide pipe are installed on the first fixing plate; one end of the liquid inlet pipe is installed at the exterior of the syringe, the second fixing plate is installed atone side of the first fixing plate, and two fixing sleeves are installed on the second fixing plate; a first movable rod and a second movable rod are installed in the two fixing sleeves respectively,one end of the first movable rod is connected with the end of the liquid inlet pipe by mounting a first rubber plug, and a first compression spring is installed at the outer side of the first movablerod; the two ends of the first compression spring are connected with the first rubber plug and the end faces of the fixing sleeves respectively, and a second rubber plug is installed at the end, awayfrom the fixing sleeves, of the second movable rod. The lung puncture biopsy device is convenient to use, sample backflow in the sampling process is effectively prevented, and meanwhile multi-time sampling can be conducted.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a lung puncture biopsy device. Background technique [0002] Lung puncture biopsy is an important measure for the diagnosis and treatment of lung diseases. At present, clinically, the puncture needle is mainly used for puncture under the guidance of a CT detector, and then connected to a syringe for suction. The existing puncture needle has a simple structure and is not used during use. Convenience adds difficulty to medical staff in the operation process. [0003] There are following deficiencies in existing puncture needles: [0004] 1. The hollow needle is used for biopsy through negative pressure suction. After the hollow needle sucks the tissue, because the pressure in the cavity is negative pressure, the needle plug is easy to reset and push the tissue out, causing the sample to flow back and increasing the difficulty of sampling. [0005] 2. The structure is simple. Duri...

Claims

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Application Information

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IPC IPC(8): A61B10/02A61B17/34
CPCA61B10/0233A61B17/34
Inventor 杜廷伟薛静孟海英
Owner THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
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