CN209951305U

CN209951305U - Sterile puncture positioning device used under CT guidance

Info

Publication number: CN209951305U
Application number: CN201920455957.3U
Authority: CN
Inventors: 聂建云; 刘莉花; 沈仕俊
Original assignee: Third Affiliated Hospital of Kunming Medical University
Current assignee: Third Affiliated Hospital of Kunming Medical University
Priority date: 2019-04-05
Filing date: 2019-04-05
Publication date: 2020-01-17
Anticipated expiration: 2029-04-05

Abstract

The utility model discloses a sterile puncture positioning device guided by CT, which is characterized by comprising a latticed metal positioning guide wire (1); a medical sterile transparent plastic application (2); a release liner (3); and (4) sealing the sterile packaging bag. The utility model relates to a rationally, simple structure, convenient operation, the location is accurate, ensures aseptic principle, can be used for the aseptic puncture location under the CT guide.

Description

Sterile puncture positioning device used under CT guidance

Technical Field

The invention relates to the technical field of medical instruments, in particular to a sterile puncture positioning device used under the guidance of a CT.

Background

With the improvement of living standard, disease spectrum and gene spectrum are greatly changed, and tumor patients are increased. The current diagnosis of lung, pancreas, retroperitoneal tumors and some liver cancer patients without a history of hepatitis B or AFP-negativity is mainly determined by pathological biopsy and different treatment protocols are established according to pathological typing.

At present, when medical staff performs a needle biopsy operation under CT guidance, a metal material is used as a reference object on the body surface of a puncture target, then CT scanning is performed, a puncture point and a puncture angle are determined according to the position relation between a focus and the metal material on a scanned image, and then the medical staff punctures without disinfection and wearing gloves. The puncture method mainly depends on the puncture experience and technical level of medical staff, and has the difficulty that the puncture angle is not easy to control, and the puncture angle and the puncture depth need to be adjusted for many times and the operation is repeated. The operation process is not disinfected or the disinfection is not standard, the aseptic concept is broken, and the medical aseptic principle requires that the disinfection range is 15cm by taking a puncture point as a center. And secondly, the same metal material positioner is repeatedly used among different patients under the condition of not being disinfected, and the metal material positioner is infected with body fluids of different patients, so that cross infection is easily caused.

Aiming at the defects of the prior art, a research and development person needs to develop a sterile puncture positioning device which has the advantages of reasonable design, simple structure, convenient operation and accurate positioning, ensures the sterile principle and can be used for CT guidance.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide the sterile puncture positioning device which is reasonable in design, simple in structure, convenient to operate, accurate in positioning and capable of ensuring the sterile principle and being used under the guidance of CT.

In order to achieve the purpose, the invention provides the following technical scheme: a aseptic puncture positioner for under CT guide which characterized in that: comprises a grid-shaped metal positioning guide wire (1); a medical sterile transparent plastic application (2); a release liner (3); sealing the aseptic packaging bag (4);

preferably, the latticed metal positioning guide wire (1) is made of aluminum filaments, a plurality of metal guide wires form a square metal grid with the side length of 15cm, and the small grid in the square metal grid is a small square with the side length of 1 cm.

Preferably, the latticed metal positioning guide wire is provided with two coating layers, wherein the bottom coating layer, namely the layer facing the skin, is made of polyurethane containing tungsten, and the outer coating layer, namely the layer facing away from the skin, is made of half-ester methyl ethyl ether-maleic anhydride copolymer.

Preferably, the medical sterile transparent plastic application (2) is a square with the side length of 15cm, two sides of the medical sterile transparent plastic application are coated with adhesives, three layers are formed, one side of the first layer is attached to the skin, and the other side of the first layer is attached to the latticed metal positioning guide wire; the second layer and the third layer of medical sterile transparent plastic application are sequentially pasted on the outer layer of the latticed metal positioning guide wire.

Preferably, the three layers of medical sterile transparent plastic application and the grid-shaped metal positioning guide wire are pasted together into a whole, and the inner layer, namely the skin-fitting layer, and the outer layer, namely the outer layer of the third layer of medical sterile transparent plastic application are pasted with the isolation lining paper (3).

Preferably, the sterile puncture positioning device is placed in a sealed sterile packaging bag (4);

the utility model relates to a sterile puncture positioner under CT guide's beneficial effect:

1. the positioning device can be used for positioning percutaneous aspiration biopsy under CT guidance, and can also be used for positioning percutaneous aspiration iodine 125 particle implantation.

2. The locator can be applied to diseased organs and tissues needing puncture biopsy all over the body.

3. The latticed positioning guide wire is made of metal aluminum, so that the environment is not polluted, and the positioning guide wire can be recycled. The plastic property is good, and the plastic film can be bent according to the physiological curve of a person under the tension of the sterile transparent plastic patch and is tightly attached to the skin. The latticed metal positioning guide wire is provided with two coatings, wherein the material of a bottom coating (namely the layer facing the skin) is polyurethane containing tungsten, and the material of an outer coating (namely the layer facing away from the skin) is half-ester methyl ethyl ether-maleic anhydride copolymer, so that the developing effect of CT can be improved.

4. The grid-shaped positioning device can adopt coordinate axis positioning, and the positioning is accurate.

5. The aseptic transparent plastic application ensures the aseptic principle of the whole operation environment, when the first puncture fails, the CT positioning can be carried out again, and after the polluted outer film is taken off, the puncture is carried out again under the aseptic condition.

Description of the drawings

FIG. 1: sterile puncture positioning device drawing under CT guidance

1-isolation lining paper, 2-medical sterile transparent plastic plaster and 3-isolation lining paper

[ detailed description of the invention ]

The using method comprises the following steps:

1. according to the CT examination, the position and the size of the lesion are determined, the examination body position of the patient is determined, and the supine position, the prone position or the lateral position is selected for CT scanning.

2. And removing the inner layer isolation lining paper of the positioning device, and attaching the inner layer isolation lining paper to the body surface of the diseased organ or tissue to perform CT thin-layer scanning.

3. The computer display screen can be used for puncturing pathological tissues or organs and grid-shaped positioning guide wires according to the needs, selecting the layer surface with the largest focus and the closest distance from the focus to the body surface, avoiding bones, larger blood vessels and nerves, and finding the optimal puncture point by taking the grid-shaped positioning guide wires as positioning points.

5. And (3) turning on a CT scanning baseline laser lamp for positioning, measuring the closest distance from the optimal puncture point to the surface of the focus and the farthest distance from the puncture point to the focus, and recording data as the observation of the needle insertion depth in the puncture process. The angle formed by the needle inserting path from the puncture point to the focus and the horizontal line is the needle inserting angle of the puncture needle.

6. Tearing the outmost isolation lining paper, puncturing according to the optimal puncture point, the measured data and the needle inserting angle, carrying out CT scanning, finely adjusting according to the actual conditions, then positioning through CT if the materials are not obtained, tearing the sterile transparent dressing sticker with the outer layer polluted, and repeating the operation.

Claims

1. The utility model provides a sterile puncture positioner under CT guide which characterized in that: comprises a grid-shaped metal positioning guide wire (1); a medical sterile transparent plastic application (2); a release liner (3); and (4) sealing the sterile packaging bag.

2. The CT-guided sterile puncture positioning device of claim 1, wherein: the latticed metal positioning guide wire (1) is made of aluminum filaments, a plurality of metal guide wires form a square metal grid with the side length of 15cm, and the inner small grid of the square metal grid is a small square with the side length of 1 cm.

3. A CT-guided sterile puncture positioning device according to claim 2, wherein: the latticed metal positioning guide wire is provided with two layers of coatings, wherein the bottom coating layer, namely the layer facing the skin, is made of polyurethane containing tungsten, and the outer coating layer, namely the layer facing away from the skin, is made of half-ester methyl ethyl ether-maleic anhydride copolymer.

4. The CT-guided sterile puncture positioning device of claim 1, wherein: the medical sterile transparent plastic application (2) is a square with the side length of 15cm, two sides of the medical sterile transparent plastic application are coated with adhesives, three layers are formed, one side of the first layer is attached to the skin, and the other side of the first layer is attached to the latticed metal positioning guide wire; the second layer and the third layer of medical sterile transparent plastic application are sequentially pasted on the outer layer of the latticed metal positioning guide wire.

5. The CT-guided sterile puncture positioning device of claim 4, wherein: the three layers of medical sterile transparent plastic application and the latticed metal positioning guide wire are pasted together into a whole, the inner layer, namely a skin attaching layer, and the outer layer, namely the third layer of medical sterile transparent plastic application are both attached to the isolation lining paper (3).

6. The CT-guided sterile puncture positioning device of claim 1, wherein: the sterile puncture positioning device is placed in the sealed sterile packaging bag (4).