CN203591277U - Multi-function puncture needle negative-pressure controller - Google Patents

Abstract

A multi-function puncture needle negative-pressure controller is a device wherein an U-shaped hard material (aluminum alloy and so forth) is processed into a zigzag shape on an open side with length scales on the sealing side edge; and is matched with a plastic injector during use. In puncture, the zigzag surface of the controller is put inwards and the end without a tooth is pushed against a piston handle of the injector to be pulled backwards with the piston. When the handle and the piston are pulled to obtain a needed negative pressure, sawteeth are stuck on edges of a needle cylinder in order to keep the negative pressure inside the needle cylinder constant and consequently control extracted cell volume relatively accurately. Therefore, satisfying puncture effect can be obtained. The length scales on a scale face can be used to measure tumor size.

Description

Multifunctional puncture needle negative pressure controller

Affiliated technical field:

This utility model relates to that a kind of to support the use to control negative pressure in puncture needle with plastic injector be object, and is accompanied with the device of measurement function.Be mainly used in oncocytology puncture technique.

Background technology:

The extensive use of oncocytology puncture technique, but the main armrest patient of the control of puncture needle negative pressure controls voluntarily, complicated operation and poor accuracy.Therefore, be badly in need of one both convenient and practical, the puncture needle negative pressure controller of simple economy again.

Summary of the invention:

This utility model is by shaped U-shaped one hard material (aluminium alloy etc.), and supporting the use to control negative pressure in puncture needle with plastic injector is object, and is accompanied with the device of measurement function, is mainly used in oncocytology puncture technique.

This utility model solves the scheme that its technical problem adopts: use a kind of U-shaped hard material, thickness is 2mm left and right, be designed to open sides indentation, there is the device of length scale at edge, closed side, be used in conjunction with and can be used for controlling negative pressure in puncture needle with plastic injector, make operation more easy and accurate.Thereby obtain satisfied puncture effect.The length scale of scale face can be for measuring tumor size.

Below in conjunction with the drawings and specific embodiments, this utility model is further illustrated.

Accompanying drawing explanation:

Fig. 1 is vision figure, and Fig. 2 is side view, and Fig. 3 is cross-sectional view.

The specific embodiment:

1, product material is U-shaped hard material, and thickness is 2mm, and outward appearance is as Fig. 1; Open sides indentation, there is length scale at edge, closed side as Fig. 2; Cross section is as Fig. 3.

2, puncture needle negative pressure control: when puncture, first by puncture needle without negative pressure puncture in tumor, then by fixing left hand injector syringe, it is inside that the right hand is held this controller serrated face, anodontia one end withstood to the piston handle of syringe, pulls back with piston.In the time being pulled to required negative pressure, sawtooth card, at syringe edge, to control the constant of negative pressure in syringe, thereby is controlled to the cell quantity of extraction.

3, measure: the length scale of scale face can be measured swollen thing size.

Claims (1)

1. a Multifunctional puncture needle negative pressure controller, a kind of to support the use to control negative pressure in puncture needle with plastic injector be object, and be accompanied with the device of measurement function, it is characterized in that: use U-shaped hard material, open sides indentation, there is length scale at edge, closed side.

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