CN107307875B - Simulation experiment device and method based on DSA subtraction technology - Google Patents
Simulation experiment device and method based on DSA subtraction technology Download PDFInfo
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- CN107307875B CN107307875B CN201710492553.7A CN201710492553A CN107307875B CN 107307875 B CN107307875 B CN 107307875B CN 201710492553 A CN201710492553 A CN 201710492553A CN 107307875 B CN107307875 B CN 107307875B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
Abstract
The invention discloses a simulation experiment device based on DSA subtraction technology, which comprises a support body, a thin tube and an auxiliary pushing device, wherein the thin tube is used for simulating blood vessels of a human body, the support body is used for simulating different fat and thin human bodies by injecting different amounts of water, the thin tube penetrates through the support body, and the auxiliary pushing device is used for injecting water or a medical contrast agent into the thin tube. The invention also discloses a simulation experiment method based on the DSA subtraction technology. The invention can effectively simulate the clinical effect of DSA subtraction, and has low cost, safety and easy use.
Description
Technical Field
The invention relates to a simulation experiment device and a simulation experiment method, in particular to a simulation experiment device and a simulation experiment method based on DSA subtraction technology.
Background
The Digital Subtraction Angiography (DSA) is a digital imaging subtraction technique combining an X-ray angiography technique applied to clinical medicine after CT with a modern computer technique, and has great superiority and great clinical practical value in diagnosis of diseases and interventional radiology. In practical development application, a real angiography process needs to be simulated through an experimental device to verify the effectiveness of development. However, there is no device in the prior art that can effectively simulate a real angiographic procedure.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a simulation experiment device and a simulation experiment method based on DSA subtraction technology, which can simulate a real angiography process.
The technical scheme is as follows: the simulation experiment device based on the DSA subtraction technology comprises a support body, a thin tube and an auxiliary pushing device, wherein the thin tube is used for simulating blood vessels of a human body, the support body is used for simulating different fat and thin human bodies by injecting different amounts of water, the thin tube penetrates through the support body, and the auxiliary pushing device is used for injecting water or a medical contrast medium into the thin tube.
Furthermore, the top of the support body is provided with an opening, the support body is also provided with two oppositely-penetrating holes, and the thin tube penetrates through the two holes.
Furthermore, the support body is a cube, and the two holes are respectively arranged on two opposite angles of the support body. This allows the tubules to cover and pass through the support body to the maximum extent possible.
Furthermore, the support body is made of organic glass. Organic glass has good physical and chemical properties and is often used as a material for a mold body in the medical field.
Further, the support body further includes a cover capable of covering the opening.
Further, the auxiliary pushing device is a manual injector or a power injector.
The simulation experiment method based on the DSA subtraction technology comprises the following steps:
s1: the simulation experiment device is placed at an image acquisition position of the C-shaped arm, and comprises a support body, a thin tube and auxiliary pushing equipment;
s2: penetrating a thin tube into one hole on the support body, winding the part of the thin tube left in the support body into a required effect, penetrating the thin tube out of the other hole on the support body, and fixing two ends of the thin tube;
s3: injecting water into the support body;
s4: slowly injecting water into the thin tube through the auxiliary pushing device, starting the continuous perspective function of the C-shaped arm after the thin tube is filled with water, and observing the change of an image;
s5: the continuous perspective function is still started, medical contrast agent is slowly injected into the thin tube through the auxiliary pushing device, and the change of the image is observed.
Furthermore, the support body is a cube, and the two holes are respectively arranged on two opposite angles of the support body.
Furthermore, the support body is made of organic glass.
Further, the auxiliary pushing device is a manual injector or a power injector.
Has the advantages that: the invention discloses a simulation experiment device and method based on DSA subtraction technology, which can effectively simulate the clinical effect of DSA subtraction and is low in cost, safe and easy to use.
Drawings
FIG. 1 is a graph of experimental results obtained without the addition of a contrast agent in accordance with an embodiment of the present invention;
FIG. 2 is a graph showing the effect of contrast medium addition in an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be further described with reference to the following detailed description and the accompanying drawings.
The specific embodiment discloses a simulation experiment device based on DSA subtraction technology, which comprises a support body, a thin tube used for simulating a human blood vessel and auxiliary pushing equipment.
The support body is a cube of 30cm, the material is organic glass, the inside is hollow, the top of the support body is provided with a circular opening with a cover, two opposite corners of the support body are respectively provided with a hole for a thin tube to pass through, and the support body is used for simulating different human bodies with different fat and thin by injecting water with different quantities.
The thin tube is used for simulating the blood vessel of the human body, has soft texture, and has the clinical effect similar to the blood vessel in DSA subtraction technology. Specifically, the thin tube is a polyethylene tube with the inner diameter of 2.5mm and the outer diameter of 4 mm. The tubule passes through the support body from two holes of the support body, and two ends of the tubule are fixed.
The auxiliary pushing device is used for injecting water or medical contrast medium into the thin tube, and a manual injector or a power injector can be adopted.
The specific embodiment also discloses a simulation experiment method based on the DSA subtraction technology, which comprises the following steps:
s1: the simulation experiment device is placed at an image acquisition position of the C-shaped arm, and comprises a support body, a thin tube and auxiliary pushing equipment;
s2: penetrating a thin tube into one hole on the support body, winding the part of the thin tube left in the support body into a required effect, penetrating the thin tube out of the other hole on the support body, and fixing two ends of the thin tube;
s3: injecting water into the support body;
s4: slowly injecting water into the thin tube through the auxiliary pushing device, starting the continuous perspective function of the C-shaped arm after the thin tube is filled with water, and observing the change of an image; at this time, nothing should be in the image, that is, the image simulating the blood vessel before the DSA is injected with the contrast agent, as shown in fig. 1;
s5: the continuous fluoroscopy function is still started, medical contrast agent is slowly injected into the thin tube through the auxiliary pushing device, the air is not allowed to enter the thin tube as much as possible, the change of the image is observed until the image of the thin tube added with the contrast agent is clearly visible, namely the image of the blood vessel after the contrast agent is injected into the simulated DSA is the image, as shown in figure 2.
Claims (7)
1. A simulation experiment device based on DSA subtraction technique is characterized in that: the device comprises a support body, a tubule and an auxiliary pushing device, wherein the tubule is used for simulating blood vessels of a human body, the support body is used for simulating different fat and thin human bodies by injecting different amounts of water, the tubule penetrates through the support body, and the auxiliary pushing device is used for injecting water or a medical contrast agent into the tubule;
the top of the support body is provided with an opening, the support body is also provided with two oppositely-penetrating holes, and a thin tube penetrates through the two holes;
the support body is a cube, and the two holes are respectively formed in two opposite angles of the support body.
2. The DSA subtraction technique-based simulation experiment apparatus of claim 1, wherein: the support body is made of organic glass.
3. The DSA subtraction technique-based simulation experiment apparatus of claim 1, wherein: the support body further comprises a lid capable of covering the opening.
4. The DSA subtraction technique-based simulation experiment apparatus of claim 1, wherein: the auxiliary pushing device is a manual injector or a power injector.
5. A simulation experiment method based on DSA subtraction technology is characterized in that: the method comprises the following steps:
s1: placing the simulation experiment device of any one of claims 1 to 4 at an image acquisition position of the C-shaped arm, wherein the simulation experiment device comprises a support body, a thin tube and an auxiliary pushing device;
s2: penetrating a thin tube into one hole on the support body, winding the part of the thin tube left in the support body into a required effect, penetrating the thin tube out of the other hole on the support body, and fixing two ends of the thin tube;
s3: injecting water into the support body;
s4: slowly injecting water into the thin tube through the auxiliary pushing device, starting the continuous perspective function of the C-shaped arm after the thin tube is filled with water, and observing the change of an image;
s5: the continuous perspective function is still started, medical contrast agent is slowly injected into the thin tube through the auxiliary pushing device, and the change of the image is observed.
6. A simulation experiment method based on DSA subtraction technique according to claim 5, wherein: the support body is made of organic glass.
7. A simulation experiment method based on DSA subtraction technique according to claim 5, wherein: the auxiliary pushing device is a manual injector or a power injector.
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| CN201710492553.7A CN107307875B (en) | 2017-06-26 | 2017-06-26 | Simulation experiment device and method based on DSA subtraction technology |
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| CN107307875B true CN107307875B (en) | 2020-12-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5908387A (en) * | 1996-06-21 | 1999-06-01 | Quinton Instrument Company | Device and method for improved quantitative coronary artery analysis |
| CN101351155A (en) * | 2006-01-05 | 2009-01-21 | 皇家飞利浦电子股份有限公司 | Adjustable phantom |
| CN101532988A (en) * | 2009-04-10 | 2009-09-16 | 东南大学 | Liver-mimicking ultrasound phantom device for in-vitro evaluation of contrast medium and evaluation method thereof |
| CN104392651A (en) * | 2014-12-03 | 2015-03-04 | 重庆大学 | Intracerebral hemorrhage simulation experiment device and control method thereof |
| CN105943160A (en) * | 2016-06-30 | 2016-09-21 | 北京工业大学 | Aorta covered stent interventional operation simulator |
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2017
- 2017-06-26 CN CN201710492553.7A patent/CN107307875B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5908387A (en) * | 1996-06-21 | 1999-06-01 | Quinton Instrument Company | Device and method for improved quantitative coronary artery analysis |
| CN101351155A (en) * | 2006-01-05 | 2009-01-21 | 皇家飞利浦电子股份有限公司 | Adjustable phantom |
| CN101532988A (en) * | 2009-04-10 | 2009-09-16 | 东南大学 | Liver-mimicking ultrasound phantom device for in-vitro evaluation of contrast medium and evaluation method thereof |
| CN104392651A (en) * | 2014-12-03 | 2015-03-04 | 重庆大学 | Intracerebral hemorrhage simulation experiment device and control method thereof |
| CN105943160A (en) * | 2016-06-30 | 2016-09-21 | 北京工业大学 | Aorta covered stent interventional operation simulator |
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