Coil device for finger magnetic resonance imaging

Abstract

The utility model relates to a coil device for finger magnetic resonance imaging, which comprises a base, the upper surface of the base is convexly provided with a groove with an upward opening for placing a detected finger, two sides of the groove symmetrically extend to form first platforms for placing other fingers, and the tail end of the groove extends to form a second platform for placing a palm. The two opposite sides of the second platform are connected with binding bands used for fixing the palm. The two soft films are fixed on two opposite sides of the groove; the coil assembly is made of a flexible material, the coil assembly comprises a first part packaged at the bottom of the groove and a second part extending from the first part to the two sides into the two soft films, the detected finger is placed in the groove, the two soft films are bent, the coil assembly wraps and is attached to the detected finger, and signals of the attached portion are collected. The coil device for finger magnetic resonance imaging provided by the utility model is convenient for fingers to enter, exit and fix, ensures the detection comfort, and provides high-definition and stable imaging for finger nerve examination.

Description

Technical Field

[0001] This invention belongs to the field of magnetic resonance imaging technology, and specifically relates to a coil device for magnetic resonance imaging of a finger. Background Technology

[0002] In modern medical technology, magnetic resonance imaging (MRI) systems are a common and widely used medical device with significant effects. Current technologies generally perform MRI detection on the palm or wrist, while MRI detection on the fingers is rare. Existing MRI coil devices cannot bend freely to wrap around the fingers or fit comfortably against the upper surface of the fingers at close range, thus failing to meet the MRI detection needs of various twisted or swollen fingers. Furthermore, coil devices also have problems such as difficulty in fixing the fingers and palms for imaging, and the imaging is not high-definition and unstable. Utility Model Content

[0003] The purpose of this invention is to provide a coil device for finger magnetic resonance imaging, which solves the problems in the prior art where the coil cannot bend freely to wrap around the finger and fit comfortably against the upper surface of the finger. It also solves the problems in finger magnetic resonance imaging where the finger and palm are not easy to fix, and the imaging is unclear and unstable. It facilitates the insertion and removal of the finger and fixation while ensuring comfort during the examination, providing high-definition and stable imaging for finger nerve examination with MRI therapy devices.

[0004] The technical solution of this utility model is a coil device for magnetic resonance imaging of a finger, comprising:

[0005] The base has a groove with an upward opening on its upper surface for placing the fingers to be examined. A first platform extends symmetrically on both sides of the groove for placing other fingers. A second platform extends from the end of the groove for placing the palm. Straps for fixing the palm are connected to opposite sides of the second platform.

[0006] Two soft membranes are fixed on opposite sides of the groove;

[0007] The coil assembly, made of a flexible material, includes a first portion encapsulated at the bottom of the groove and a second portion extending from the first portion to both sides into two soft membranes. The finger to be tested is placed in the groove, and the two soft membranes are bent so that the coil assembly wraps around and fits the finger to be tested, so as to collect the signal at the fitting area.

[0008] Preferably, side pressure plates are provided on both sides of the groove. The side pressure plates are located outside the soft membrane and press the soft membrane. The side pressure plates and the soft membrane are locked and fixed to the side wall of the groove by screws.

[0009] Preferably, both soft films are provided with a first Velcro strap, and the overlapping part of the soft films is connected and fixed by the first Velcro strap.

[0010] Preferably, the second platform has an arcuate profile that corresponds to the shape of the palm, allowing the palm to remain relaxed during detection.

[0011] Preferably, the second platform has strap buckles on both sides for connecting straps. The end of the strap near the strap buckle has two fixing round frames. After the strap passes through the first fixing round frame, the strap buckle and the second fixing round frame in sequence, the strap and the fixing round frame are tightly glued together with strong adhesive, thereby fixing the strap to the strap buckle.

[0012] Preferably, the end of the strap away from the strap buckle is provided with a second Velcro strap, and the overlapping part of the strap is connected and fixed by the second Velcro strap.

[0013] Preferably, an output board is fixed in the coil assembly. The output board is electrically connected to a preamplifier board fixed in the base via a cable. The cable passes through the output board and the preamplifier board in sequence and then passes through a cable sleeve fixed on the base to connect to an external imaging device.

[0014] Preferably, the coil assembly consists of multiple sets of rectangular coils, and an adjustable capacitor is connected in series with the coil assembly, which can modulate 8-16 channels of coils according to detection requirements.

[0015] Preferably, a rubber pad is fixed to the lower surface of the base plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] (1) Because the soft membrane covering the finger is made of ultra-soft material, it is soft and flexible, suitable for various twisted and swollen finger conditions, and can fit the finger comfortably at close range. It facilitates the insertion and removal of the finger while ensuring comfort during the examination, providing high-definition and stable imaging for the finger nerve examination of the MRI therapy device.

[0018] (2) By setting the first Velcro on the two soft films, the overlapping part of the soft films is connected and fixed by the first Velcro, thereby fixing the finger to be inspected in the groove.

[0019] (3) By setting a first platform for finger placement on both sides of the groove and a second platform with an arc-shaped contour corresponding to the shape of the palm at the end of the groove, it is convenient for other fingers to be placed flat on both sides of the groove during the detection process, and the palm can be placed comfortably without fatigue, thus further improving the comfort of the detection. Since this coil device adopts a symmetrical layout and the palm placement platform is wide with an arc-shaped contour extending down the back half, it ensures that the palm can remain relatively relaxed when any finger of the left or right hand is being detected.

[0020] (4) By setting straps with second Velcro on both sides of the second platform to fix the palm, it is easy to use. Simply press one strap on top of the other strap to fix it. This can effectively avoid the problem of unclear imaging caused by the palm moving around during finger detection.

[0021] (5) An adjustable capacitor is connected in series on the coil assembly, which can modulate 8-16 channels of coil according to the detection requirements. High-definition imaging and stable imaging effect can be achieved through multi-channel coil induction.

[0022] (6) By fixing a rubber pad to the lower surface of the base plate, it can play a role in preventing slipping and cushioning, thereby protecting the bottom of the coil device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the coil device for finger magnetic resonance imaging in a non-working state.

[0024] Figure 2 This is a schematic diagram of the working state of the coil device for finger magnetic resonance imaging according to this utility model;

[0025] Figure 3 This is a schematic diagram of the coil device for finger magnetic resonance imaging according to this utility model;

[0026] Figure 4 This is an exploded schematic diagram of the coil device for magnetic resonance imaging of the finger according to this utility model;

[0027] Figure 5 This is a schematic diagram of the circuit connection of the coil device for magnetic resonance imaging of the finger according to this utility model;

[0028] Figure 6 This is a schematic diagram of the strap connection of this utility model.

[0029] Explanation of key component symbols:

[0030] Base 1; Groove 11; Side pressure plate 12; First platform 13; Second platform 14; Strap buckle 141; Base plate 15; Soft film 2; First Velcro 21; Coil assembly 3; First part 31; Second part 32; Strap 4; Fixing round frame 41; Output board 5; Front amplifier board 6; Cable protector 7; Rubber pad 8. Detailed Implementation

[0031] This utility model will be further described in detail below with reference to the accompanying drawings:

[0032] Please see Figures 1 to 3 As shown, this utility model provides a coil device for finger magnetic resonance imaging, including: a base 1, a soft membrane 2, and a coil assembly 3. The upper surface of the base 1 has a groove 11 with an upward opening for placing the finger being examined. Symmetrically extending from both sides of the groove 11 are first platforms 13 for placing other fingers. A second platform 14 for placing the palm extends from the end of the groove 11. Straps 4 for fixing the palm are connected to opposite sides of the second platform 14. Two soft membranes 2 are fixed to opposite sides of the groove 11. The coil assembly 3 is made of a flexible material and includes a first part 31 encapsulated at the bottom of the groove 11 and a second part 32 extending from the first part 31 to both sides into the two soft membranes 2. Figure 3 As shown, the finger to be examined is placed in the groove 11, and the two soft membranes 2 are bent so that the coil assembly 3 wraps around and fits the finger to collect signals from the contact area. The coil device for finger magnetic resonance imaging provided by this utility model, by setting a first platform 13 and a second platform 14, with the first platform 13 adopting a symmetrical layout and the placement platforms of the first platform 13 and the second platform 14 being wide, ensures that the finger and palm can be comfortably placed during the examination of either the left or right hand, and is not prone to fatigue, thereby improving the comfort of the examination. In addition, by setting a strap 4, the problem of the palm being difficult to fix is ​​solved. Since the soft membrane 2 that wraps around the finger is made of ultra-soft mold material, it is soft and flexible, and can be used for various twisted and swollen finger conditions. It can fit the finger at close range and comfortably, which facilitates the insertion and removal of the finger while ensuring comfort during the examination, providing high-definition and stable imaging for finger nerve examination of MRI therapy instruments.

[0033] Please see Figure 1 , Figure 2 , Figure 4 As shown, side pressure plates 12 are provided on both sides of the groove 11. The side pressure plates 12 are located outside the soft membrane 2 and press the soft membrane 2. The side pressure plates 12 and the soft membrane 2 are locked and fixed on the side wall of the groove 11 by screws. Through the cooperation of the side pressure plates 12 and the screws, the two soft membranes 2 are fastened to both sides of the groove 11.

[0034] Please see Figure 1 , Figure 4As shown, both soft films 2 are provided with first Velcro 21, such as Figure 2 , Figure 3 As shown, the overlapping part of the soft membrane 2 is connected and fixed by the first Velcro 21, thereby fixing the finger to be inspected in the groove 11.

[0035] Please see Figures 1 to 3 As shown, the second platform 14 has an arcuate profile corresponding to the shape of the palm, which is used to support the palm and further enable the palm to remain relaxed during detection.

[0036] Please see Figures 1 to 4 As shown, the second platform 14 has strap buckles 141 on both opposite sides for connecting the straps 4; as Figure 4 , Figure 6 As shown, the end of the strap 4 near the strap buckle 141 is provided with two fixing round frames 41. After the strap 4 passes through the first fixing round frame 41, the strap buckle 141 and the second fixing round frame 41 in sequence, the strap 4 and the fixing round frame 41 are tightly glued together with strong adhesive, thereby fixing the strap 4 and the strap buckle 141 together.

[0037] Furthermore, a second Velcro strap is provided at the end of the strap 4 away from the strap buckle 141, and the overlapping parts of the straps 4 are connected and fixed by the second Velcro strap. In use, simply press one strap 4 on top of the other strap 4, and the overlapping parts are fixed by the second Velcro strap. This is convenient to use and can effectively avoid the problem of unclear imaging caused by the palm moving during finger detection.

[0038] Please see Figure 5 As shown, an output board 5 is fixed in the coil assembly 3. The output board 5 is electrically connected to the preamplifier board 6 fixed in the base 1 via a cable. The cable connects the output board 5 and the preamplifier board 6 in sequence and then passes through the cable sleeve 7 fixed on the base 1 to connect to the external imaging device.

[0039] Please see Figure 4 , Figure 5 As shown, coil assembly 3 consists of multiple sets of rectangular coils. An adjustable capacitor is connected in series with coil assembly 3, enabling modulation of 8-16 channels of coils according to detection requirements. High-definition imaging and stable imaging effects can be achieved through multi-channel coil induction. Figure 4 , Figure 5 As shown, the coil assembly 3 is closely attached to the bottom of the groove 11 and extends upward in a U-shape into the interior of the ultra-soft film 2. The ultra-soft film 2 can also tightly wrap around the finger, making the imaging effect clearer.

[0040] Please see Figure 4As shown, a rubber pad 8 is fixed to the lower surface of the base plate 15 of the base 1. Since the rubber pad 8 has anti-slip and cushioning functions, it can protect the bottom of the coil device. In a specific example, four rubber pads 8 are strongly glued to the bottom edge of the base plate 15, the base plate 15 is inserted into the bottom of the base 1, and fixed with screws.

[0041] The coil device for finger magnetic resonance imaging provided by this utility model is used as follows: First, place the palm on the second platform 14 of the base 1, place the finger to be tested in the groove 11 above the base 1, and place the other fingers on the first platforms 13 on both sides of the groove 11, and adjust the position; then, bend the two ultra-soft membranes 2, and the coils inside the soft membranes 2 are also bent accordingly, wrapping and adhering to the outer surface of the finger to be tested, and fix the two soft membranes 2 together with the first Velcro 21; finally, after fixing the palm with the strap 4, perform magnetic resonance imaging detection.

[0042] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the claims of the present utility model should be covered by the claims of the present utility model.

Claims

1. A coil arrangement for finger magnetic resonance imaging, characterized by The utility model relates to a kind of detection device for palm vein, including: Base, the upper surface of which is provided with recess for placing the fingers of the examinee upwardly opening, the recess both sides symmetrically extend the first platform for placing other fingers, the recess end extends the second platform for placing palm, the second platform opposite side is connected with the bandage for fixing palm; Two pieces of soft film are fixed on the opposite sides of the recess; Coil assembly is made of flexible material, the coil assembly includes the first part encapsulated in the bottom of the recess and the second part extended to the two pieces of soft film by the first part to both sides, the finger of the examinee is placed in the recess, the two pieces of soft film are bent, so that the coil assembly wraps the examinee's finger to collect the signal of the fitting part.

2. The coil arrangement for finger magnetic resonance imaging of claim 1, wherein, The side pressure plate is provided on both sides of the recess, and the side pressure plate is located outside the soft film and presses the soft film, and the side pressure plate and the soft film are locked and fixed on the side wall of the recess by screws.

3. The coil arrangement for finger magnetic resonance imaging of one of claims 1 or 2, wherein First magic tape is provided on the two pieces of soft film, and the two pieces of soft film are connected and fixed by the first magic tape at the overlapping position.

4. The coil arrangement for finger magnetic resonance imaging of claim 1, wherein, The second platform has an arc-shaped contour corresponding to the shape of the palm, so that the palm can be kept relaxed during detection.

5. The coil arrangement for finger magnetic resonance imaging of one of claims 1 or 4, wherein The second platform is provided with a bandage buckle for connecting the bandage on the opposite sides, and the bandage is provided with two fixed circular frames at one end close to the bandage buckle.

6. The coil arrangement for finger magnetic resonance imaging of claim 5, wherein, The second magic tape is provided at the end of the bandage away from the bandage buckle, and the bandage is connected and fixed by the second magic tape at the overlapping position.

7. The coil arrangement for finger magnetic resonance imaging of claim 1, wherein, The output board is fixed in the coil assembly, and the output board is electrically connected to the preamplifier fixed in the base by a cable.

8. The coil arrangement for finger magnetic resonance imaging of claim 1, wherein, The coil assembly is composed of multiple groups of rectangular coils, and adjustable capacitors are connected in series on the coil assembly, which can modulate 8-16 channels of coils according to detection requirements.

9. The coil arrangement for finger magnetic resonance imaging of claim 1, wherein, The bottom plate of the base is fixed with a rubber pad on the lower surface.

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