CN105852862B - Superelevation field strength intraoperative MRI scans preparation device - Google Patents

Abstract

An ultra-high field strength intraoperative magnetic resonance scanning preparation device belongs to the field of medical device manufacturing technology, and is composed of a coil, a frame, a base and a roller. , the frame is in the shape of a door, the coil is fixed in the frame by a fixing clip, the frame is installed on the base, and there are four rollers at the bottom of the base. The coil is fixed on the frame, and the height of the coil is the same as that of the magnet aperture, simulating the real magnet aperture. Before using the magnetic resonance system with 3.0T field strength, set the path according to the moving route of the magnet to push the base so that the operating bed, surgical patients and sterile wrapping dressings can pass through it, and adjust the height and angle of the operating bed to achieve the ability to move the magnet once to complete the scan Purpose. The invention can save unnecessary operation and anesthesia time, improve the safety of intraoperative magnetic resonance examination, reduce the medical risk of patients, reduce the wear of related components caused by the movement of magnets, and save energy.

Description

Ultra-high field strength intraoperative MRI scan preparation device

technical field

The invention belongs to the technical field of medical equipment manufacturing, and relates to a magnetic resonance scanning preparation device, in particular to a copper coil capable of testing an operating bed, surgical patients on the operating bed, surgical aseptic wrapping dressings, etc., smoothly entering the aperture of a magnet for magnetic resonance scanning.

Background technique

At present, the 3.0T ultra-high field strength intraoperative MRI system is only installed and operated in Shanghai Huashan Hospital, the First Hospital of Jilin University, Peking Union Medical College Hospital, and the First Affiliated Hospital of Zhengzhou University in China, and no similar related devices have been reported. When performing intraoperative magnetic resonance scanning, it is necessary to ensure that the operating bed, the patient on the operating bed, and the surgical sterile wrapping dressing enter the aperture of the magnet at the same time, and because of the following reasons, it takes a lot of time to try to make the operating bed, the patient, and the sterile Wrap securely enters magnet aperture:

1. Due to the strong magnetic field of the operating bed, and in order to ensure the uniformity of the magnetic field and the safety of the operation during scanning, the design of the operating bed needs to minimize magnetic substances, and it is impossible to design and install various sensors and other electronic equipment, and cannot automatically return to the scanning position;

2. Due to the different positions of surgical patients, it is necessary to repeatedly adjust the height and angle of the operating bed and try to move the magnet several times to ensure that the patient's surgical site is located in the central area of the magnet;

3. When the magnet is close to the operating bed within 1 meter, the operating bed needs to be powered off to ensure safety. When there is a difference in height or angle, the magnet needs to be moved out of the operating bed within 1 meter, and then the power can be turned on again to adjust the height and angle of the operating bed. Multiple tests are required to access the magnet for scanning. The magnets are extremely heavy (approximately 15 tons), move slowly and the process takes a considerable amount of time;

4. Only relying on naked eye observers will make it difficult to move MRI during the operation, which will easily lead to misjudgment, damage the MRI magnet, and may also squeeze the sterile dressing, causing various surgical pipelines to shift or fall off, threatening the safety of patients during surgery, and even Can be directly crushed to injure the patient.

Contents of the invention

The technical problem to be solved by the present invention is to provide an ultra-high-field-strength intraoperative magnetic resonance scanning preparation device, which can conveniently determine whether the operating bed and surgical patients can successfully enter the aperture of the magnet for scanning before moving the magnet.

The technical solution adopted by the present invention to solve the technical problem is to adopt coil, frame, base and roller to form the magnetic resonance scanning preparation device in ultra-high field strength operation. The holes are consistent, the frame is door-shaped, the coil is fixed in the frame by the fixing clip, the frame is installed on the base, and there are four rollers at the bottom of the base. The coil is fixed on the frame, and the height of the coil is the same as that of the magnet aperture, simulating the real magnet aperture. Before using the magnetic resonance system with 3.0T field strength, set the path according to the moving route of the magnet to push the base so that the operating bed, surgical patients and sterile wrapping dressings can pass through it, and adjust the height and angle of the operating bed to achieve the ability to move the magnet at one time to complete the scan. Purpose.

For the magnetic resonance system with a field strength of 3.0T, the shape of the magnet hole is a round hole with a trapezoidal protrusion at the bottom. In order to make the coil and the magnet hole match more accurately, the bottom of the coil is processed with a notch. The notch is formed by a horizontal line and Formed by two side slashes, the notch is shaped the same as the trapezoidal protrusion at the bottom of the magnet hole.

Coils can also be customized according to the shape of different MR apertures for compatibility with other intraoperative MR systems.

The materials of all parts are required to be non-magnetic, and the coil is preferably made of metallic copper.

The invention has the beneficial effects of saving unnecessary operation and anesthesia time, improving the safety of intraoperative magnetic resonance examination, reducing medical risks of patients, reducing the wear of related parts caused by magnet movement, and saving energy.

The device can support magnetic resonance systems with a field strength of up to 3.0T, and can be backward compatible with magnetic resonance systems below 3.0T.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Accompanying drawing is the schematic diagram of the present invention.

Detailed ways

The present invention consists of a coil 1, a frame 2, a base 3 and a roller 4. The coil 1 is circular, which is consistent with the magnet hole in the magnetic resonance system with a field strength of 3.0T. The frame 2 is gate-shaped, and the coil 1 is fixed by a fixing clip 5. In the frame 2, the frame 2 is installed on the base 3, and the bottom of the base 3 has four rollers 4, wherein the bottom of the coil 1 is processed with a notch 6, the notch 6 is formed by a horizontal line 7 and two side slant lines 8, The shape of the notch 6 is the same as the shape of the trapezoidal protrusion at the bottom of the magnet hole.

Claims (2)

1. a kind of superelevation field strength intraoperative MRI scans preparation device, it is characterised in that:It is by coil, frame, pedestal and idler wheel It constitutes, coil is circular ring shape, consistent with magnet bore in the magnetic resonance system of 3.0T field strength, and makes coil height and magnet aperture Highly identical, frame is door shape, and coil is fixed on by geometrical clamp in frame, and frame is mounted on the base, and the bottom of pedestal has Four rolling.

2. the apparatus according to claim 1, it is characterised in that:The bottom of coil is machined with recess, and recess is by a level Line and two skew back lines are formed.