CN211325209U

CN211325209U - Barrier positioning device for tumor puncture biopsy/treatment under guidance of MRI (magnetic resonance imaging)

Info

Publication number: CN211325209U
Application number: CN201921513798.4U
Authority: CN
Inventors: 王海江; 张强; 钱海龙; 刘照信; 朱丽娜; 李秀凤; 李春静; 刘巧梅
Original assignee: Baotou Cancer Hospital
Current assignee: Baotou Cancer Hospital
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-08-25
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses a barrier positioner of tumour puncture biopsy/treatment under MRI guide, including becoming the plastic tubing that continuous "nearly" font was arranged, the pipe diameter is 1~3mm, and the plastic tubing is intraduct to be annotated full of contrast medium, two open end shutoff of plastic tubing. The utility model discloses a set up the plastic tubing that continuous "nearly" style of calligraphy was arranged and inside was annotated with the contrast medium, can not disturb magnetic field, can develop clearly under nuclear magnetic scanning to it improves the setpoint accuracy as the reference. The device simple structure, portable, the cost of manufacture is low, and is easy to fix, and the practicality is strong.

Description

Barrier positioning device for tumor puncture biopsy/treatment under guidance of MRI (magnetic resonance imaging)

Technical Field

The utility model belongs to the field of medical equipment, more specifically relates to a barrier positioner of tumour puncture biopsy/treatment under MRI guide.

Background

Nuclear Magnetic Resonance Imaging (NMRI), also known as Spin Imaging, also known as Magnetic Resonance Imaging (MRI), uses the principle of Nuclear Magnetic Resonance (NMR) to detect the emitted electromagnetic waves by applying a gradient Magnetic field according to the different attenuations of the released energy in different structural environments inside a substance, so as to obtain the positions and the types of the nuclei constituting the object, thereby drawing a structural image inside the object. Compared with the X-ray and CT, the nuclear magnetic resonance has no ionizing radiation, does not hurt patients and doctors, has more advantages compared with the traditional medical image navigation, and is more suitable for real-time navigation in the operation. The general navigation mode is mainly that a doctor performs nuclear magnetic resonance imaging, then roughly determines a puncture point and a puncture direction, and after pre-positioning, a patient is sent into nuclear magnetic resonance equipment for imaging and readjustment, so that the experience of the doctor is examined very much, the patient can repeatedly enter the nuclear magnetic resonance equipment for many times, time and cost are wasted, and certain harm can be caused to the mind and the body of the patient. Therefore, in practice, the positioning device is needed to help the doctor determine the puncture point.

The MRI-guided puncture positioning device is a marking device aiming at the body surface positioning required in the nuclear magnetic biopsy or puncture treatment. The traditional nuclear magnetic resonance guide puncture positioning device mostly adopts a positioning robot or other devices with a transmission mechanism, and also has a simple positioning device made by using iron wires or rubber tubes, but the device with the transmission mechanism has more parts, is complex in structure, is not easy to carry and fix, needs a large amount of manual detection and part maintenance or replacement time, increases the maintenance cost, metal products can interfere with an externally-added magnetic field, and is not suitable for being applied to nuclear magnetic resonance guide puncture, the rubber tubes are not obvious in nuclear magnetic development, the positioning accuracy is influenced, and the puncture positioning under the guidance of the nuclear magnetic resonance is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above not enough, designing a barrier positioner of tumour puncture biopsy/treatment under MRI guide, the device simple structure, portable, the cost of manufacture is low, and is easy fixed, and develops clearly, fixes a position the accuracy.

In order to realize the above purpose, the utility model provides a barrier positioner of tumour puncture biopsy/treatment under MRI guide, including becoming the plastic tubing that continuous "nearly" font was arranged, the pipe diameter is 1~3mm, and two open end shutoff that the contrast medium plastic tubing was filled up to the plastic tubing inside.

The plastic tubing of "nearly" font range in succession includes a plurality of parallel arrangement's standpipe and is located between two adjacent standpipes and the violently pipe of being connected perpendicularly with the standpipe.

The device can be with a cavity plastic tubing, bend into continuous "nearly" font fence after injecting the contrast agent with the syringe many times, also can use many to connect into continuous "nearly" font fence with violently the pipe of pipe diameter through plastics elbow fitting, then injects the contrast agent with the syringe. The contrast agent of the utility model is a common contrast agent for nuclear magnetic resonance.

The standpipe is equipped with 5~10, and standpipe length is 8~10cm, violently manages length and is 0.5~1 cm. In the size range of plastic tubing, both can guarantee that nuclear magnetic scanning's development is clear, can improve the degree of accuracy of puncture location again, and the size portable of whole device with fixed, if the device size is too wide, not only can influence the location degree of accuracy, because human radian, also be difficult for fixing the device, and inconvenient operation, inconvenient carrying.

Two open ends of plastic tubing can use the rubber buffer shutoff, also can use the shutoff of medical waterproof adhesive tape.

When using, the fence positioner makes clear of pathological change position roughly according to the nuclear magnetic resonance image at patient's focus position, is fixed in body surface relevant position with this fence positioner according to the medical adhesive tape for the pathological change position, and operation nuclear magnetic resonance equipment scans patient's focus position, and the picture that obtains shows several bright spots, confirms best puncture point according to the bright spot that positioner shows in the scanogram.

The material of plastic tubing can use PC, PEBAX, PTFE or PA, toughness is good, buckles difficult disconnected.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the plastic tubing that continuous "nearly" style of calligraphy was arranged and inside was annotated with the contrast medium, can not disturb magnetic field, can develop clearly under nuclear magnetic scanning to it improves the setpoint accuracy as the reference. The device simple structure, portable, the cost of manufacture is low, and is easy to fix, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of a barrier positioning device according to embodiment 1 of the present invention.

Fig. 2 is a schematic view of a barrier positioning device according to embodiment 2 of the present invention.

In the figure: 1-plastic tube, 11-vertical tube, 12-horizontal tube, 2-contrast agent, 3-plastic elbow joint, 4-rubber plug and 5-waterproof adhesive tape.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and specific examples.

Example 1

As shown in figure 1, the barrier positioning device for tumor puncture biopsy/treatment under MRI guidance comprises plastic tubes 1 which are arranged in a continuous inverted U shape, the interior of the plastic tube 1 with the diameter of 2.88mm is filled with contrast agent 2, and two open ends of the plastic tube 1 are sealed by medical waterproof adhesive tapes 5. The plastic pipe 1 arranged in a continuous shape like a Chinese character 'ji' comprises a plurality of vertical pipes 11 arranged in parallel and a transverse pipe 12 which is positioned between two adjacent vertical pipes 11 and is vertically connected with the vertical pipes 11.

In this embodiment, the positioning device is formed by injecting a contrast agent 2 into a hollow plastic tube with a syringe and then bending the tube into a continuous inverted V shape.

In this embodiment, the vertical pipes 11 are provided with 7 vertical pipes, the length of the vertical pipes 11 is 8cm, and the length of the horizontal pipe 12 is 1 cm.

Example 2

As shown in figure 2, the barrier positioning device for tumor puncture biopsy/treatment under MRI guidance comprises plastic tubes 1 which are arranged in a continuous inverted V shape, the tube diameter is 2mm, the interior of each plastic tube 1 is filled with a contrast agent 2, and two open ends of each plastic tube 1 are plugged by rubber stoppers 4. The plastic pipe 1 arranged in a continuous shape like a Chinese character 'ji' comprises a plurality of vertical pipes 11 arranged in parallel and a transverse pipe 12 which is positioned between two adjacent vertical pipes 11 and is vertically connected with the vertical pipes 11.

In the positioning device of the embodiment, a plurality of vertical pipes 11 with the same diameter are connected with a transverse pipe 12 through plastic elbow joints 3 to form a continuous inverted V shape, and then contrast agents 2 are injected by an injector.

This embodiment the standpipe is equipped with 10, and standpipe length is 9cm, and violently manage length and be 0.5 cm.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. The utility model provides a barrier positioner of tumour puncture biopsy/treatment under MRI guide, its characterized in that is including becoming plastic tubing (1) that continuous "nearly" font was arranged, plastic tubing (1) that continuous "nearly" font was arranged includes standpipe (11) of a plurality of parallel arrangement and is located between two adjacent standpipe (11) and violently manage (12) of being connected perpendicularly with standpipe (11), and the pipe diameter is 1~3mm, standpipe (11) length is 8~10cm, violently manage (12) length and be 0.5~1cm, fills up contrast agent (2) in plastic tubing (1), two open end shutoff of plastic tubing (1).

2. The MRI guided tumor biopsy/treatment boom positioning device according to claim 1, wherein 5-10 vertical tubes (11) are provided.

3. The MRI guided tumor biopsy/treatment boom positioning device according to claim 1, characterized in that both open ends of the plastic tube (1) are blocked with rubber plugs (4) or waterproof tapes (5).