MR phantom anti-dislocation structure

Abstract

The utility model relates to medical MR field especially, more particularly to a MR model body mistake structure, including MR model body, the MR model body is opened in and receives the cavity, the MR model body is located in the rotation cavity outside receiving the cavity and is opened, the MR model body is located in the rotation cavity top and is opened and is limited the slot, reset spring is provided in the receiving cavity, handle, sliding connection is in receiving the cavity, handle and reset spring between fixed connection, the utility model has the following beneficial effect: press and rotate the rotating rod, cooperate rotation cavity, limit slot, reset spring, limit board and limit slot can make handle to stretch out or retract in receiving the cavity, thereby first is to make medical staff can hold handle adjustment MR model body's position, prevent medical staff from wearing the situation of misplacement when moving MR model body disinfection gloves, the convenience of MR model body when using is improved, secondly can reduce the space that MR model body occupies, three is to prevent handle and the collision of outside.

Description

Technical Field

[0001] This utility model relates to the field of medical MR, and in particular to an anti-misalignment structure for MR phantoms. Background Technology

[0002] An MR phantom, short for magnetic resonance imaging phantom, is a standardized "simulated object" specifically used for performance testing, quality control, image calibration, and technology development of magnetic resonance imaging (MRI) equipment. It is not a real human tissue or biological sample, but rather a phantom that simulates the magnetic resonance signal characteristics and physical structure of different human tissues. It provides quantifiable assessment data for the accuracy, stability, and imaging quality of MRI equipment, and is a core tool in the field of MRI technology to ensure compliant equipment operation and reliable images.

[0003] In existing technologies, during actual operation of MR phantoms, medical personnel typically need to wear sterile gloves to move the MR phantom. To prevent misalignment during movement, some MR phantoms are designed with movable handles: medical personnel can rotate the handle to disengage it from the placement slot, causing the coil spring to deform. They can then grip the handle to adjust the position of the MR phantom, thus solving the problem of misalignment when moving the MR phantom while wearing gloves. The first Velcro piece fixed to the surface of the handle and the second Velcro piece fixed in the placement slot enable the handle to be stored and fixed in the placement slot. However, since the coil spring always applies an outward force to the handle, the first and second Velcro pieces need to continuously bear this outward tension. Furthermore, the adhesiveness of the Velcro pieces gradually weakens with long-term use or repeated application. Under the combined effect of these two factors, the fixing force of the Velcro pieces is easily insufficient, eventually causing the handle to accidentally detach from the placement slot. This not only increases the space occupied by the MR phantom due to the protruding handle but also increases the risk of the handle being impacted by external forces. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an anti-misalignment structure for MR phantoms. This solves the problem mentioned in the background art where some MR phantoms, due to the constant outward force exerted on the handle by the coil spring, require the first and second hook and loop fasteners to continuously bear this outward tension. Furthermore, the adhesiveness of the hook and loop fasteners gradually weakens with long-term use or repeated application. Under the combined effect of these two factors, the fixing force of the hook and loop fasteners is easily insufficient, ultimately leading to the handle accidentally detaching from the placement slot. This not only increases the space occupied by the MR phantom due to the handle protruding but also increases the risk of the handle being impacted by external forces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an MR phantom anti-misalignment structure, comprising:

[0006] The MR mold body has a storage cavity inside, a rotating cavity outside the storage cavity inside the MR mold body, a limit groove above the rotating cavity inside the MR mold body, and a reset spring inside the storage cavity.

[0007] The handle is slidably connected to the storage cavity. The handle is fixedly connected to the return spring. A rotating rod is rotatably connected inside the handle, and a limit plate is fixedly connected to the bottom end of the rotating rod.

[0008] Optionally, the surface of the MR mold body is provided with a sliding hole, and a plurality of locking holes are provided on one side of the sliding hole. An adjusting plate is slidably connected in the sliding hole. The adjusting plate is fixedly connected to the return spring. A locking bolt passes through the adjusting plate. The locking bolt is threadedly connected to the locking hole.

[0009] Optionally, the top of the rotating rod is teardrop-shaped, the top surface of the rotating rod is provided with anti-slip texture, and the top of the handle is fixedly connected with an identification mark on the outside of the rotating rod.

[0010] Optionally, the handle surface is covered with an anti-slip sleeve, and the top of the anti-slip sleeve has a clearance hole.

[0011] Optionally, the top surface of the anti-slip sleeve is higher than the top surface of the rotating rod, and the top surface of the anti-slip sleeve is lower than the top surface of the MR mold.

[0012] Optionally, a positioning plate is fixedly connected to the inner wall of the storage cavity below the handle, and the positioning plate is rectangular.

[0013] Optionally, a liquid tank is provided inside the MR mold body, and a liquid injection port is provided at the top of the MR mold body. The liquid injection port is connected to the liquid tank, and a sealing valve is provided inside the liquid injection port. A sealing ring is fitted on the surface of the sealing valve.

[0014] Optionally, an observation port is provided on one side of the MR phantom, and the observation port is rectangular.

[0015] The beneficial effects of this utility model are as follows: Pressing and rotating the rotating rod, in conjunction with the rotating cavity, limiting groove, reset spring, limiting plate and limiting groove, can cause the handle to extend or retract into the storage cavity. This allows medical personnel to hold the handle to adjust the position of the MR phantom, preventing misalignment when medical personnel move the MR phantom while wearing sterile gloves, thus improving the convenience of using the MR phantom. Secondly, it can reduce the space occupied by the MR phantom. Thirdly, it prevents the handle from colliding with the outside world.

[0016] The movable adjustment plate slides along the sliding hole and the receiving cavity, which can pre-tighten the return spring to compensate for the loss of elasticity due to fatigue or other factors, so that it can be restored to the appropriate elastic force. This ensures that the handle always completes the return action normally and smoothly, which helps to extend the service life of the structure. The adjustment plate can be limited by the locking bolt and locking hole. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of an MR phantom anti-misalignment structure according to the present invention;

[0019] Figure 2 This is an enlarged structural diagram of point A in this utility model;

[0020] Figure 3 This is a schematic cross-sectional view of an MR phantom structure for preventing misalignment according to the present invention.

[0021] Figure 4 This is an enlarged structural diagram of point B in this utility model;

[0022] Figure 5 This is a schematic diagram of the handle structure of an anti-misalignment structure for an MR phantom according to the present invention;

[0023] Figure 6 This is a schematic diagram of the adjustment plate structure of an MR phantom anti-misalignment structure according to the present invention;

[0024] Figure 7 This is a schematic diagram of an MR phantom structure for preventing misalignment according to the present invention.

[0025] Figure label:

[0026] 1. MR phantom body; 101. Reception cavity; 102. Rotation cavity; 103. Limiting groove; 104. Return spring; 105. Sliding hole; 106. Locking hole; 107. Adjusting plate; 108. Locking bolt; 109. Positioning plate; 110. Liquid tank; 111. Injection port; 112. Sealing valve; 113. Observation port;

[0027] 1. Handle; 201. Rotating rod; 202. Limiting plate; 203. Marking; 204. Anti-slip sleeve; 2041. Clearance hole. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] Please see Figures 1 to 5 This utility model provides a technical solution: an anti-misalignment structure for an MR mold, comprising: an MR mold 1, a storage cavity 101 inside the MR mold 1, a rotating cavity 102 outside the storage cavity 101 inside the MR mold 1, a limiting groove 103 above the rotating cavity 102 inside the MR mold 1, a return spring 104 inside the storage cavity 101, a handle 2 slidably connected inside the storage cavity 101, the handle 2 being fixedly connected to the return spring 104, a rotating rod 201 rotatably connected inside the handle 2, and a limiting plate 202 fixedly connected to the bottom end of the rotating rod 201.

[0030] Pressing the rotating rod 201 causes the limiting plate 202 connected to it to disengage from the limiting groove 103 and move into the rotating cavity 102. At the same time, the handle 2, due to the pressure of the rotating rod 201, will slide down along the storage cavity 101 and press the return spring 104. While continuously pressing the rotating rod 201, rotate it until the limiting plate 202 rotates into the coverage area of ​​the handle 2. Then release the rotating rod 201, and the handle 2 will slide up along the storage cavity 101 under the action of the return spring 104. At this time, medical personnel can hold the handle 2 to adjust the position of the MR phantom 1, so that medical personnel are less likely to misalign when moving the MR phantom 1 while wearing sterile gloves, thus improving the convenience of using the MR phantom 1. Similarly, by pressing and rotating the rotating rod 201 to insert the limiting plate 202 into the limiting groove 103, the handle 2 can be stored and fixed in the storage cavity 101, which not only reduces the space occupied by the MR phantom 1, but also prevents the handle 2 from being impacted by the outside.

[0031] Furthermore, the top of the rotating rod 201 is teardrop-shaped, and the top surface of the rotating rod 201 is provided with anti-slip texture. The top of the handle 2 is fixedly connected to the outer side of the rotating rod 201 with a mark 203.

[0032] By observing the positional relationship between the rotating rod 201 and the scale on the mark 203, it is easy to determine the rotation of the limiting plate 202 in the rotating cavity 102. The anti-slip texture can increase the friction between the hand and the rotating rod 201, thereby preventing the hand from slipping when rotating the rotating rod 201.

[0033] Furthermore, the surface of the handle 2 is fitted with an anti-slip sleeve 204, and the top of the anti-slip sleeve 204 is provided with a clearance hole 2041. The top surface of the anti-slip sleeve 204 is higher than the top surface of the rotating rod 201, and the top surface of the anti-slip sleeve 204 is lower than the top surface of the MR mold body 1.

[0034] The anti-slip sleeve 204 increases the friction between the hand and the handle 2, allowing medical staff to grip the handle 2 more firmly when adjusting the position of the MR phantom 1, further reducing the risk of misalignment and improving the stability of the operation.

[0035] Furthermore, a positioning plate 109 is fixedly connected to the inner wall of the storage cavity 101 below the handle 2, and the positioning plate 109 is rectangular.

[0036] When the handle 2 slides down the storage cavity 101 to the fully retracted limit position, its bottom end will contact the positioning plate 109 and will not be able to move down further, thereby preventing the return spring 104 from being damaged due to excessive pressure from the handle 2.

[0037] Please see Figures 1 to 7 The present invention provides a technical solution: a sliding hole 105 is provided on the surface of the MR mold body 1, and a plurality of locking holes 106 are provided on one side of the sliding hole 105 on the surface of the MR mold body 1. An adjusting plate 107 is slidably connected in the sliding hole 105. The adjusting plate 107 is fixedly connected to the return spring 104. A locking bolt 108 is passed through the adjusting plate 107. The locking bolt 108 is threadedly connected to the locking hole 106.

[0038] The adjustment plate 107 is moved so that it slides along the sliding hole 105 and the receiving cavity 101, thereby adjusting the preload of the return spring 104. This allows the return spring 104 to be preloaded to compensate for the decrease in elasticity due to fatigue or other factors, so that it can be restored to a suitable elastic force. This ensures that the handle 2 always completes the reset action normally and smoothly, which helps to extend the service life of the structure. When the adjustment plate 107 is moved to the appropriate position, the locking bolt 108 is tightened to connect with the corresponding locking hole 106, thereby limiting the adjustment plate 107.

[0039] Please see Figures 1 to 7 The present invention provides a technical solution: a liquid tank 110 is provided inside the MR mold body 1, and a liquid injection port 111 is provided at the top of the MR mold body 1. The liquid injection port 111 is connected to the liquid tank 110, and a sealing valve 112 is provided inside the liquid injection port 111. A sealing ring is fitted on the surface of the sealing valve 112.

[0040] When medical personnel need to inject liquid into the MR phantom 1, they only need to open the sealing valve 112 to inject the liquid into the liquid tank 110 through the injection port 111, and then close the sealing valve 112 to seal the injection port 111.

[0041] Furthermore, an observation port 113 is provided on one side of the MR phantom 1, and the observation port 113 is rectangular.

[0042] The observation port 113 facilitates observation of the contents of the liquid tank 110.

[0043] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A misalignment prevention structure for an MR phantom, characterized in that, include: The MR mold (1) has a storage cavity (101) inside, a rotating cavity (102) is provided outside the storage cavity (101) inside the MR mold (1), a limiting groove (103) is provided above the rotating cavity (102) inside the MR mold (1), and a reset spring (104) is provided inside the storage cavity (101). The handle (2) is slidably connected to the storage cavity (101). The handle (2) is fixedly connected to the reset spring (104). A rotating rod (201) is rotatably connected inside the handle (2). A limit plate (202) is fixedly connected to the bottom end of the rotating rod (201).

2. The anti-misalignment structure for an MR phantom according to claim 1, characterized in that, The surface of the MR mold (1) is provided with a sliding hole (105), and a plurality of locking holes (106) are provided on one side of the sliding hole (105) on the surface of the MR mold (1). An adjusting plate (107) is slidably connected in the sliding hole (105). The adjusting plate (107) is fixedly connected to the return spring (104). A locking bolt (108) is passed through the adjusting plate (107). The locking bolt (108) is threadedly connected to the locking hole (106).

3. The anti-misalignment structure for an MR phantom according to claim 1, characterized in that, The top of the rotating rod (201) is teardrop-shaped, and the top surface of the rotating rod (201) is provided with anti-slip texture. The top of the handle (2) is fixedly connected with a mark (203) on the outside of the rotating rod (201).

4. The MR phantom anti-misalignment structure according to claim 1, characterized in that, The handle (2) is covered with an anti-slip sleeve (204), and the top of the anti-slip sleeve (204) has a clearance hole (2041).

5. The anti-misalignment structure for an MR phantom according to claim 4, characterized in that, The top surface of the anti-slip sleeve (204) is higher than the top surface of the rotating rod (201), and the top surface of the anti-slip sleeve (204) is lower than the top surface of the MR mold (1).

6. The anti-misalignment structure for an MR phantom according to claim 1, characterized in that, The inner wall of the storage cavity (101) is fixedly connected to a positioning plate (109) below the handle (2), and the positioning plate (109) is rectangular.

7. The anti-misalignment structure for an MR phantom according to claim 1, characterized in that, The MR phantom (1) has a liquid tank (110) inside and a liquid injection port (111) at the top of the MR phantom (1). The liquid injection port (111) is connected to the liquid tank (110). A sealing valve (112) is provided inside the liquid injection port (111), and a sealing ring is fitted on the surface of the sealing valve (112).

8. The anti-misalignment structure for an MR phantom according to claim 1, characterized in that, The MR phantom (1) has an observation port (113) on one side, and the observation port (113) is rectangular.

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