CN208435750U - Ovum needle is held in micromanipulation - Google Patents

Abstract

Ovum needle is held in a kind of micromanipulation, specially pipeline configuration, it successively include: shank, undergauge bar and syringe needle, in which: undergauge bar is fixedly connected with syringe needle in bending angle, and the outer wall of hydrophobic coating and shank that the undergauge bar and inner needle wall are equipped with siliceous compound is marked equipped with bending direction.Label of the utility model on the tube wall for holding ovum needle can easily judge the bending direction of syringe needle according to this label, accomplish accurately to install with operator；Its inner wall has hydrophobic coating, and keeping in surgical procedure will not residual solution in pipe；Its tail portion keeps tail portion integrally mellow and full through shell nosing treatment, and no sharpened edge does not easily cause instrument damage when installing with operator.

Description

Ovum needle is held in micromanipulation

Technical field

The utility model relates to a kind of tools of reproductive medicine micromanipulation technical field of tools in vitro fertilization, specifically It is that ovum needle is held in a kind of micromanipulation.

Background technique

In recent years, with deep and new technology the rapid development of human reproduction's basic medical theoretical research, to sterility In some difficult and complicated illness such as aspermia or oligospermia, azoospermia, abnormal smart disease, part azoospermatism etc. performed the operation using intracytoplasmic sperm injection (ICSI) it carries out treatment and achieves satisfactory effect.This operation can select eupyrene sperm from form, then sperm is infused It is mapped in egg mother cell to complete Process of Insemination, is allowed to have far reaching significance in terms of science of heredity, eugenics, reproduction. Since ovum is smaller, when puncture, and is easy to cause to damage to ovum more difficult alignment position, therefore the success very great Cheng of ICSI operation It is influenced on degree by micromanipulation tool technique, the success rate of operation can be greatly improved in good operational instrument.Size precisely, form It is intact, facilitate doctor operate hold the guarantee that ovum needle is exactly ICSI successful surgery.

It is the operation for cooperating micromanipulator that ovum needle is held in existing micromanipulation, generally has a bending at syringe needle position. Syringe needle is superfine, is micron dimension, and be transparent glass material, so the direction of bending is difficult to it is clear that being therefore attached to needle It is difficult aligning direction when on operator.Because the material for holding ovum needle is glass, the section of Aculeata has been easy sharpened edge, when with When micromanipulator is connected, it is easy to damage instrument, is also easily broken off with hour hands.In addition, when doing ICSI operation, it is existing to hold ovum needle Needle tubing in also have solution residual the phenomenon that.

Utility model content

The utility model In view of the above shortcomings of the prior art, proposes that ovum needle is held in a kind of micromanipulation, can be significant Resolution the superfine part of syringe needle bending direction, can accurately with operator install；The tail portion for optimizing needle, does not easily cause operator And the damage of itself；Inner wall for holding ovum needle carries out hydrophobic treatment, makes to be not easy to leave solution in pipe.

The utility model is achieved through the following technical solutions:

It is specially pipeline configuration that the utility model, which holds ovum needle, successively includes: shank, undergauge bar and syringe needle, in which: undergauge bar It is fixedly connected with syringe needle in bending angle, the undergauge bar and inner needle wall are equipped with the hydrophobic coating of siliceous compound and shank Outer wall is marked equipped with bending direction, and the tail portion of shank is equipped with closing in chamfering, keeps edge mellow and full smooth.

Technical effect

Compared with prior art, the utility model has a label on tube wall, can easily be sentenced according to this label The bending direction of disconnected syringe needle out, accomplishes accurately to install with operator；Its inner wall has hydrophobic coating, keeps in pipe in surgical procedure It will not residual solution；Its shank tail portion does not easily cause instrument damage when installing with operator through shell nosing treatment.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

In figure: shank 1, undergauge bar 2, syringe needle 3, the length L1 of shank, the length L2 of undergauge bar, the length L3 of syringe needle, folding The outer diameter D of bending angle α, the internal diameter d of needle point, needle point.

Specific embodiment

As shown in Figure 1, being unobstructed pipeline configuration inside the present embodiment, inner wall has the hydrophobic coating of siliceous compound, tube wall On have bending direction label, which includes: shank, undergauge bar and syringe needle, in which: shank, undergauge bar, syringe needle successively connect It connects, undergauge bar is fixedly connected with syringe needle in certain bending angle.

The bending angle α range is 0~50 °.

The length L1 of the shank is 45~55mm, and tail portion is equipped with closing in chamfering, keeps edge mellow and full smooth.

The length L2 of the undergauge bar is 3~6mm, and the upper end is funnel-shaped, reduces diameter of inner pipe.

The length L3 of the syringe needle is 0.5~1mm, and front end is equipped with needle point.

The inner tube of the needle point is funnel-shaped, reduces its internal diameter, and the internal diameter d of needle point is 15~30 μm, outside needle point Diameter D is 60~180 μm.

Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the utility model principle and objective with Different modes carries out local directed complete set to it, and the protection scope of the utility model is subject to claims and not by above-mentioned specific Implementation is limited, and each implementation within its scope is by the constraint of the utility model.

Claims (5)

1. ovum needle is held in a kind of micromanipulation, which is characterized in that be specially pipeline configuration, successively include: shank, undergauge bar and needle Head, in which: undergauge bar is fixedly connected with syringe needle in bending angle, and the undergauge bar and inner needle wall are equipped with dredging for siliceous compound The outer wall of water coating and shank is marked equipped with bending direction, and the tail portion of shank is equipped with closing in chamfering.

2. ovum needle is held in micromanipulation according to claim 1, characterized in that the bending angle range is 0~50 °.

3. ovum needle is held in micromanipulation according to claim 2, characterized in that the length of the shank is 45~55mm, Its tail portion is equipped with closing in chamfering, keeps edge mellow and full smooth.

4. ovum needle is held in micromanipulation according to claim 3, characterized in that the length of the undergauge bar is 3~6mm, The upper end is funnel-shaped.

5. ovum needle is held in micromanipulation according to claim 4, characterized in that the length of the syringe needle is 0.5~1mm, Its front end is equipped with needle point；The inner tube of the needle point is funnel-shaped, and the internal diameter of needle point is 15~30 μm, and the outer diameter of needle point is 60~ 180μm。