Magnetostrictive displacement measurement device for hemostatic clip

Abstract

The utility model relates to the technical field of displacement detection devices, in particular to a magnetic displacement detection device for a hemostatic clip, which comprises a detection box, a positioning mechanism is arranged in the detection box, the hemostatic clip is positioned through the positioning mechanism, a detection mechanism is arranged in the detection box, and a magnetic field is generated in the detection box through the detection mechanism. The detection box is used for detecting the displacement condition of the hemostatic clip in a magnetic field, and one side of the detection box is movably connected with a box door; the positioning mechanism is arranged in the detection box, the hemostatic clip is positioned through the positioning mechanism, the magnetic field is generated in the detection box by opening the detection mechanism arranged in the detection box after positioning is completed, whether the hemostatic clip displaces in the magnetic field or not is detected, and then whether the hemostatic clip is made of a magnetic material or not and whether the hemostatic clip can be used or not is judged.

Description

Technical Field

[0001] This utility model relates to the technical field of displacement measurement devices, specifically a magnetic displacement measurement device for hemostatic clamps. Background Technology

[0002] As the market size of the hemostatic clip industry continues to expand, market demand is growing, technology is maturing, and product quality is constantly improving. With the increasing popularity of hemostatic clips, the industry's market share is also increasing, its scale is expanding, and its technology is continuously improving, leading to a continuous rise in market demand.

[0003] However, hemostatic clips need to be implanted in the body for 1-3 weeks. When patients undergo MRI examinations after implantation, if the clip contains magnetic components (such as iron, nickel, or cobalt), these materials will be affected by an external magnetic field. In a strong magnetic field, the magnetic material will undergo magnetostrictive effects, causing the clip to shift or rotate. Especially in the absence of completely non-magnetic materials, a strong magnetic field may attract the clip and cause it to move in the direction of the magnetic field. To address this, we have developed a device for measuring the magnetostrictive displacement of hemostatic clips. Utility Model Content

[0004] The purpose of this invention is to provide a magneto-displacement measurement device for hemostatic clips to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A magnetostrictive displacement measuring device for hemostatic clips includes a detection box, a positioning mechanism inside the detection box for positioning the hemostatic clip, a detection mechanism inside the detection box for generating a magnetic field inside the detection box and detecting the displacement of the hemostatic clip under the magnetic field, and a door is movably connected to one side of the detection box.

[0007] Preferably, the positioning mechanism includes several positioning plates, the lower end of the positioning plates is fixedly connected to a T-shaped block, the T-shaped block slides in a T-shaped cavity, the T-shaped cavity is opened inside the detection box, and pull ropes are fixedly connected to the opposite ends of several T-shaped blocks, the lower ends of the pull ropes extend into the external environment and are fixedly connected to a limiting plate.

[0008] Preferably, several pull ropes are sleeved on the inner side of an L-shaped connecting plate. The L-shaped connecting plate has screw holes, and a limit screw is screwed into the screw holes. One end of the limit screw is screwed into a positioning hole, which is located inside the detection box. Several pull ropes are sleeved on the inner side of a support spring. The upper end of the support spring is fixedly connected to the lower end of the detection box, and the lower end is fixedly connected to the L-shaped connecting plate.

[0009] An I-shaped rod is movably connected inside the positioning plate. A connecting spring is sleeved on the outside of the I-shaped rod. One end of the connecting spring is fixedly connected to the I-shaped rod, and the other end is fixedly connected to the positioning plate.

[0010] Preferably, the detection mechanism includes several electromagnet blocks and several laser ranging sensors. The electromagnet blocks are fixedly connected to the inside of the detection box, and the laser ranging sensors are disposed on the lower side of the electromagnet blocks and fixedly connected to the inside of the detection box.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets a positioning mechanism in the detection box to position the hemostatic clip. After positioning, the detection mechanism set in the detection box is opened to generate a magnetic field in the detection box, and the displacement of the hemostatic clip under the magnetic field is detected, thereby determining whether the hemostatic clip is made of magnetic material and whether it can be used. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a three-dimensional structural diagram showing the connection relationship between the support spring and the L-shaped connecting plate of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram showing the connection relationship between the positioning plate and the I-shaped rod of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram showing the connection relationship between the positioning plate and the T-block of this utility model;

[0016] Figure 5 This is a three-dimensional structural diagram of the box door in the closed state of this utility model.

[0017] In the diagram: 1. Detection box; 2. Box door; 3. Positioning hole; 4. Limiting plate; 5. Pull rope; 6. T-block; 7. Positioning plate; 8. Laser rangefinder sensor; 9. Electromagnet block; 10. T-cavity; 11. Screw hole; 12. L-shaped connecting plate; 13. Limiting screw; 14. Support spring; 15. Connecting spring; 16. I-shaped rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 This utility model provides a technical solution:

[0020] Example 1:

[0021] A magneto-induced displacement measuring device for hemostatic clips includes a detection box 1, a layer that can block magnetic force can be set inside the detection box 1, a positioning mechanism is provided inside the detection box 1 to position the hemostatic clip, a detection mechanism is provided inside the detection box 1 to generate a magnetic field inside the detection box 1 and detect the displacement of the hemostatic clip under the magnetic field, and a box door 2 is movably connected to one side of the detection box 1.

[0022] The positioning mechanism includes several positioning plates 7. The lower end of the positioning plate 7 is fixedly connected to the T-shaped block 6. The T-shaped block 6 slides in the T-shaped cavity 10. The T-shaped cavity 10 is opened inside the detection box 1. The positioning plate 7 and the T-shaped block 6 can be made of a material that is not attracted by magnetic force, such as plastic. Each of the opposite ends of the T-shaped blocks 6 is fixedly connected to a pull rope 5. The lower end of the pull rope 5 extends into the external environment and is fixedly connected to the limiting plate 4.

[0023] Several pull ropes 5 are sleeved on the inner side of the L-shaped connecting plate 12. The L-shaped connecting plate 12 has screw holes 11. A limit screw 13 is screwed into the screw holes 11. One end of the limit screw 13 is screwed into the positioning hole 3. The positioning hole 3 is opened in the detection box 1. Several pull ropes 5 are sleeved on the inner side of the support spring 14. The upper end of the support spring 14 is fixedly connected to the lower end of the detection box 1, and the lower end is fixedly connected to the L-shaped connecting plate 12. Pulling the L-shaped connecting plate 12 upward compresses the support spring 14. At this time, the hemostatic clip is placed between several positioning plates 7. After placement, the pull on the L-shaped connecting plate 12 is released. At this time, under the elastic force of the support spring 14, the L-shaped connecting plate 12 moves downward and drives the limit plate 4 to move.

[0024] An I-shaped rod 16 is movably connected inside the positioning plate 7. The I-shaped rod 16 can be made of a material that is not attracted by magnetic force, such as plastic. A connecting spring 15 is sleeved on the outside of the I-shaped rod 16. The outside of the connecting spring 15 is coated with a magnetic shielding coating. One end of the connecting spring 15 is fixedly connected to the I-shaped rod 16, and the other end is fixedly connected to the positioning plate 7. When one I-shaped rod 16 in the positioning plate 7 is in contact with the hemostatic clip, while the other I-shaped rods 16 are not in contact with the hemostatic clip, the I-shaped rod 16 that has been in contact will be pushed to move as the positioning plate 7 moves. At this time, the connecting spring 15 is compressed.

[0025] The testing mechanism includes several electromagnet blocks 9 and several laser rangefinders 8. The specific model of the laser rangefinders 8 is PA18CSD04NASA manufactured by Jiale Trading Co., Ltd. The electromagnet blocks 9 are fixedly connected to the inside of the testing box 1, and the laser rangefinders 8 are set on the lower side of the electromagnet blocks 9. The laser rangefinders 8 are fixedly connected to the inside of the testing box 1.

[0026] Working principle: When in use, pull up the L-shaped connecting plate 12 to compress the support spring 14. At this time, place the hemostatic clip between several positioning plates 7. After placement, release the pull on the L-shaped connecting plate 12. Under the elastic force of the support spring 14, the L-shaped connecting plate 12 moves downward and drives the limiting plate 4 to move. At this time, several pull ropes 5 are pulled downward and several positioning plates 7 move inward simultaneously to contact the hemostatic clip. When the I-shaped rod 16 in one positioning plate 7 contacts the hemostatic clip, while the other I-shaped rods 16 do not contact the hemostatic clip, the I-shaped rod 16 that has already contacted the hemostatic clip will be pushed to move as the positioning plate 7 moves. At this time, the connecting spring 15 is compressed. When several I-shaped rods 16 have contacted the hemostatic clip, push the L-shaped connecting plate 12 upward and screw it into the positioning hole 3 through the limiting screw 13, so that the L-shaped connecting plate 12 is fixed. At this time, the positioning plate 7 is in a movable state.

[0027] Under the elastic force of the connecting spring 15, the positioning plate 7 moves outward, while the I-shaped rod 16 remains in contact with the hemostatic clamp. The box door 2 is closed and several electromagnet blocks 9 and several laser rangefinders 8 are opened. The electromagnet blocks 9 generate magnetic force to attract the hemostatic clamp. When the hemostatic clamp moves under the action of magnetic force, the positioning plate 7 will be pushed to move. The laser beam emitted by the laser rangefinder 8 can measure the displacement change of the positioning plate 7 before and after the magnetic attraction.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. 。

Claims

1. A magnetostrictive displacement measuring device for hemostatic clips, comprising a measuring box, characterized in that: The testing box is equipped with a positioning mechanism to position the hemostatic clip. The testing box is also equipped with a detection mechanism that generates a magnetic field inside the testing box and detects the displacement of the hemostatic clip under the magnetic field. A door is movably connected to one side of the testing box.

2. The magnetostrictive displacement measuring device for hemostatic clips according to claim 1, characterized in that: The positioning mechanism includes several positioning plates. The lower end of the positioning plate is fixedly connected to a T-shaped block. The T-shaped block slides in a T-shaped cavity, which is located inside the detection box. Pull ropes are fixedly connected to the opposite ends of several T-shaped blocks. The lower ends of the pull ropes extend into the external environment and are fixedly connected to a limiting plate.

3. The magnetostrictive displacement measuring device for hemostatic clips according to claim 2, characterized in that: Several pull ropes are sleeved on the inner side of an L-shaped connecting plate. The L-shaped connecting plate has screw holes, and a limit screw is screwed into the screw holes. One end of the limit screw is screwed into a positioning hole, which is located inside the detection box. Several pull ropes are sleeved on the inner side of a support spring. The upper end of the support spring is fixedly connected to the lower end of the detection box, and the lower end is fixedly connected to the L-shaped connecting plate.

4. The magnetostrictive displacement measuring device for hemostatic clips according to claim 3, characterized in that: An I-shaped rod is movably connected inside the positioning plate. A connecting spring is sleeved on the outside of the I-shaped rod. One end of the connecting spring is fixedly connected to the I-shaped rod, and the other end is fixedly connected to the positioning plate.

5. The magnetostrictive displacement measuring device for hemostatic clips according to claim 1, characterized in that: The detection mechanism includes several electromagnet blocks and several laser ranging sensors. The electromagnet blocks are fixedly connected to the inside of the detection box, and the laser ranging sensors are located below the electromagnet blocks and are fixedly connected to the inside of the detection box.

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