A micron-scale microfilament-through-microtube guiding device

Abstract

The present invention proposes a micron-level microwire-through-microtube guiding device, which is used to insert the micron-level microwire into the microtube, and includes a connected main body and a neck, wherein the main body has a first opening and a second opening, the first opening and the second opening are connected through a side wall, and the inner diameter of the second opening is greater than the inner diameter of the first opening; the neck is a hollow structure, and one end is connected to the first opening. The neck is used to fix the microtube, and the microwire is inserted from the main body direction, and is guided along the side wall of the main body to enter the neck and dock with the hollow cavity of the microtube. The size of the second opening is set so that the natural shaking of the human hand has no effect on the operation of manually inserting the microwire into the guiding device. The matching design of the main body and the neck enables the operator to easily, quickly and with high quality complete the micron-level microwire through the microtube operation, saving the operator's time and energy. Using the same principle, a guiding port is also provided for inserting the microtube into the neck for fixing, further simplifying the overall operation of microwire through the microtube.

Description

Technical Field

[0001] The invention relates to the field of medical technology, and in particular to a micron-level micro-wire-to-micro-tube guiding device. Background Art

[0002] When making some precision electrodes manually, it is often necessary to prepare a large number of micron-level electrode wires to insert into silicon tubes, and insert 15μm to 75μm microwires into microtubes with inner diameters of 100μm to 200μm. The hollow cavity in the 100μm microtube is difficult to identify with the naked eye, and the docking of the 10-micron microwire end with the hollow cavity of the microtube is extremely difficult to distinguish and align manually under the naked eye. Even if the hollow cavity and microwire in the microtube can be distinguished with the help of a microscope, the drift of the handheld microwire within a diameter range of 300μm caused by the natural shaking of the human body also makes it very difficult to directly dock the hollow cavity of the microtube and the microwire under a microscope.

[0003] The manual microwire insertion into microtubes is currently entirely done by manual dexterity, requiring the operator to concentrate highly, keep their head down for a long time, and keep their eyes fixed on the microtubes with an inner diameter of 100μm to 200μm, and their hands must be stable for a long time to complete. Due to the small cavity in the microtube, the position of the microwire relative to the microtube drifts unsteadily when the human hand shakes naturally, making it very difficult to accurately insert the microwire into the microtube cavity. This operation requires a lot of energy for skilled operators and can easily lead to occupational diseases such as joint strain and decreased vision due to excessive concentration for a long time; it is even more difficult for beginners to do well, as it is time-consuming and labor-intensive, and the number of available finished products is small. Summary of the invention

[0004] In view of this, in order to overcome the defects of the above-mentioned prior art, the present invention proposes a micron-scale microwire-through-microtube guiding device which is easy to operate and can quickly and accurately complete the micron-scale microwire-through-microtube operation.

[0005] Specifically, the micron-sized microwire-through-microtube guiding device is used to insert the micron-sized microwire into the microtube, and includes a main body and a neck that are connected. The main body has a first opening and a second opening, and the first opening is connected to the second opening through a side wall, and the inner diameter of the second opening is larger than the inner diameter of the first opening; the neck is a hollow structure, and one end of the neck is connected to the first opening. The main body is an open structure. Furthermore, the side wall is a smooth inclined surface; or, the side wall is a curved surface. The neck is used to fix the microtube, and the microwire is inserted from the main body, guided along the side wall to enter the neck and dock with the hollow cavity of the microtube, so that the operation is simple and convenient.

[0006] Specifically, the inner diameter of the second opening of the main body is at least 600 μm, so that the natural shaking of the human hand has no effect on the operation of manually inserting the microwire into the guide device. The gap between the neck and the microtube is 0-20 μm. It can be ensured that the microtube can be placed in the neck of the micron-level microwire-through-microtube guide device and can stay naturally without sliding out.

[0007] Furthermore, the micron-level microwire-through-microtube guiding device further comprises a guiding port, the main body and the guiding port are respectively connected to two opposite ends of the neck, the guiding port is an open structure, and one end connected to the neck is a narrow opening. The microtube is inserted from the guiding port, guided to the neck along the inner wall of the guiding port and fixed, so that the operation of inserting the microtube into the neck and fixing it is simpler, further reducing the difficulty of the entire micron-level microwire-through-microtube operation.

[0008] In some embodiments, the neck includes a first neck and a second neck; one end of the first neck is connected to the main body, the other end of the first neck is sleeved with one end of the second neck, and the other end of the second neck is connected to the guide port. Specifically, the inner diameter size can be changed by using the wall thickness of the second neck. When the guide device is needed, the second neck corresponding to the inner diameter size is selected according to the actual size of the microtube, and the second neck is sleeved into the first neck for fixation.

[0009] In order to enhance the applicability of a single guiding device and enable the guiding device to be applicable to the microtubes of different sizes, the neck includes more than two sequentially connected accommodating cavities, the inner diameters of the accommodating cavities are gradually increased, and two adjacent accommodating cavities are connected by a reducing pipe, and the end of the reducing pipe close to the main body is a narrow opening. Preferably, the central axes of the accommodating cavities are on the same straight line; or, the orthogonal projections of the accommodating cavities are all contained within the projection of the accommodating cavity with the largest inner diameter.

[0010] The present invention also proposes a micron-scale microwire-through-microtube guiding device, which is used to insert a micron-scale microwire into a microtube, and the micron-scale microwire-through-microtube guiding device comprises a base and a plurality of micron-scale microwire-through-microtube guiding devices as described above mounted on the base, thereby solving the problem that the guiding device is very small in size and is not convenient to hold in hand during use.

[0011] In summary, the main body of the micron-level microwire-through-microtube guiding device of the present invention has a first opening and a second opening with different opening sizes, the first opening with a smaller opening on the main body is connected to the neck, the neck is used to fix the microtube, the microwire is inserted from the main body, and the size of the second opening is set so that the natural shaking of the human hand has no effect on the operation of manually inserting the microwire into the guiding device, and the microwire can be guided along the side wall to enter the neck and achieve docking with the hollow cavity of the microtube. The matching design of the main body and the neck enables the operator to easily, quickly and with high quality complete the micron-level microwire through the microtube operation. In order to make the use of the micron-level microwire through the microtube guiding device more convenient, some other designs are also made, for example, a guiding port is also provided on the neck, so that the operation of inserting the microtube into the neck and fixing it is simpler, saving the operator's time and energy. Further, the neck can be set to have different inner diameter sizes, and the application can be selected as needed. It is also possible to set a plurality of accommodating cavities with different inner diameter sizes on a guiding device, so that a single guiding device can adapt to the application of microtubes of different sizes, and it is flexible and easy to use. The present invention also proposes a micron-level micro-wire-to-micro-tube guiding device, in which the guiding device is mounted on a base for easy holding by an operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic structural diagram of the micron-scale microfilament-to-microtube guiding device of the present invention;

[0014] Figure 2 Another schematic diagram of the structure of the micron-scale microfilament-to-microtube guiding device of the present invention;

[0015] Figure 3 It is another structural schematic diagram of the micron-scale micro-wire-to-micro-tube guiding device of the present invention;

[0016] Figure 4 It is another structural schematic diagram of the micron-scale micro-wire-to-micro-tube guiding device of the present invention;

[0017] Figure 5 It is a schematic structural diagram of the micron-scale microfilament-through-microtube guiding device of the present invention.

[0018] Reference numerals:

[0019] 11-main body; 12-neck; 121-first neck; 122-second neck; 131-first accommodating chamber; 132-second accommodating chamber; 133-third accommodating chamber; 134-reducing tube; 14-guide port; 15-base; 21-microtube; 22-microfilament. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present invention provides a microfilament-through-microtube guiding device using the "funnel traction" principle. Figure 1 , is a schematic diagram of the structure of the microfilament-to-microtube guiding device of the present invention. The guiding device comprises a funnel-shaped main body 11 and a neck 12 which are connected to each other. The main body 11 comprises a first opening 111 and a second opening 112. The first opening 111 and the second opening 112 are connected through a side wall. The inner diameter of the second opening 112 is larger than the inner diameter of the first opening 111. One end of the neck 12 is connected to the first opening 111.

[0022] Example 1

[0023] In this embodiment, the guiding device includes a main body 11 and a neck 12, the main body 11 is an open structure, the side wall is a smooth inclined surface or an arc surface, and the neck 12 is a hollow cavity. When performing the microwire through microtube operation, the microtube 21 is fixed inside the neck 12 of the guiding device. Optionally, the inner diameter size of the neck 12 of the guiding device can be slightly larger than the total outer diameter size of the microtube 21. Preferably, the total outer diameter size of the microtube 21 is equal to the inner diameter size of the neck 12 of the guiding device. The microwire 22 is inserted from the main body 11, guided along the inner wall of the main body 11 to the inside of the neck 12, and then precisely docked with the hollow cavity of the microtube 21, thereby completing the microwire through microtube operation.

[0024] In a specific micron-level microfilament-through-microtube operation, a 75 μm microfilament 22 is to be inserted into a microtube 21 with an inner diameter of 100 μm and a total outer diameter of 160 μm. The gap between the inner wall of the neck 12 and the outer surface of the microtube 21 can be 0-20 μm. In some embodiments, a guide device with an inner diameter of 180 μm in the neck 12 is used. The neck 12 with an inner diameter of 180 μm can ensure that the microtube 21 with a total outer diameter of 160 μm can be placed in the neck 12 of the guide device and can stay naturally without sliding out. The inner diameter of the second opening 112 on the main body 11 is at least 600 μm, so that the natural shaking of the human hand has no effect on the operation of manually inserting the microfilament 22 into the guide device. Preferably, the inner diameter of the second opening 112 on the main body 11 is 900 μm. In this embodiment, the side wall of the main body 11 is a smooth inclined surface, and the whole is in an inverted frustum. After the microwire 22 is inserted from the main body, it is guided along the inclined surface to the neck 12 and docked with the hollow cavity of the microtube 21.

[0025] Example 2

[0026] See the instruction manual Figure 2 , the guiding device of this embodiment includes a main body 11, a neck 12 and a guiding port 14. The two opposite ends of the neck 12 are respectively connected to the main body 11 and the guiding port 14, and the main body 11 and the guiding port 14 are both open structures, and the end connected to the neck 12 is a narrow mouth. Optionally, the side wall of the guiding port 14 can be a smooth inclined surface or a curved surface. In this embodiment, the side wall of the main body 11 is a curved surface, which is bowl-shaped as a whole, and the side wall of the guiding port 14 is a smooth inclined surface. When performing the micron-level microwire through microtube operation, the microtube 21 is first inserted from the direction of the guiding port 14, guided along the inner wall of the guiding port 14 to the neck 12 for fixing, and then the microwire 22 is inserted from the direction of the main body 11, and guided along the curved surface to the neck 12 to dock with the hollow cavity of the microtube 21. Both ends of the neck 12 are designed with the "funnel traction" principle, so that the operations of fixing the tiny microtube 21 and inserting the microwire 22 can be performed quickly and accurately, reducing the difficulty of the entire micron-level microwire-microtube operation and simplifying the operation. The operator can complete this operation easily, simply and quickly.

[0027] Example 3

[0028] Since the guiding device needs to stably fix the microtube 21, and the size of the microtube 21 is selected according to actual needs, when the guiding device is actually used, it is necessary to use a guiding device with different inner diameters of the neck 12 to match the microtube 21. Figure 3The neck of the guiding device includes a first neck 121 and a second neck 122 which are independent of each other. One end of the first neck 121 is connected to the main body 11, and the other end is sleeved with the second neck 122. The other end of the second neck 122 is connected to the guiding port 14. Specifically, the first neck 121 has a fixed size, and the second neck 122 has an outer diameter size equal to the inner diameter size of the first neck 121, and different second necks 122 have different inner diameter sizes. Specifically, the inner diameter size can be changed by the wall thickness of the second neck 122. For example, when the outer diameter size of the second neck 122 is 200μm, the inner diameter size can be 180μm, or the inner diameter size can be 160μm by increasing the wall thickness. When the guiding device is needed, the second neck 122 corresponding to the inner diameter size is selected according to the actual size of the microtube 21, and the second neck 122 is inserted into the first neck 121 and fixed.

[0029] Furthermore, in order to make a single guiding device more adaptable, a micron-scale micro-wire-through-micro-tube guiding device capable of accommodating micro-tubes 21 of different sizes is designed. Figure 4 , which is a schematic diagram of the specific structure of a micron-scale micro-wire-through-micro-tube guiding device capable of accommodating micro-tubes 21 of various sizes. The neck includes more than two sequentially connected accommodating cavities, the accommodating cavities are hollow cavities, the inner diameters of the accommodating cavities increase step by step, and two adjacent accommodating cavities are connected by a reducer 134, and the end of the reducer 134 close to the main body 11 is a narrow mouth, and the orthogonal projections of each accommodating cavity are all included in the projection of the accommodating cavity with the largest inner diameter. Specifically, the neck portion includes a first accommodating cavity 131, a second accommodating cavity 132 and a third accommodating cavity 133. The inner diameter of the first accommodating cavity 131 is 200 μm, and can accommodate a microtube 21 with an outer diameter of 180-200 μm; the inner diameter of the second accommodating cavity 132 is 175 μm, and can accommodate a microtube 21 with an outer diameter of 155-175 μm; the inner diameter of the third accommodating cavity 133 is 150 μm, and can accommodate a microtube 21 with an outer diameter of 130-150 μm. In the orthographic projection from the main body 11 to the guide port 14, the projection of the third accommodating cavity 133 is within the projection of the second accommodating cavity 132, and the projection of the second accommodating cavity 132 is within the projection of the first accommodating cavity 131. Preferably, the central axes of the first accommodating cavity 131, the second accommodating cavity 132 and the third accommodating cavity 133 are on the same straight line.

[0030] When using the guide device to perform the microfilament-through-microtube operation, the microtube 21 is inserted from the guide port 14, and enters along the guide port 14 to a position where it can be stably fixed with the neck 12, and then the microfilament 22 is inserted from the main body 11, and is guided along the side wall of the main body 11 to the neck 12 to accurately dock with the hollow cavity of the microtube 21. When using, there is no need to spend time selecting a guide device that matches the size of the microtube 21. A single guide device can be suitable for microtubes 21 of different sizes, and it is flexible and easy to use.

[0031] Example 4

[0032] See the instruction manual Figure 5 , is a schematic diagram of the structure of the micron-level microwire-through-microtube guiding device. The micron-level microwire-through-microtube guiding device includes a base and a guiding device installed on the base 15. In some embodiments, the base is in the shape of a plate with a side length of 2 cm, and a guiding device is installed in the middle position of the base 15, which solves the problem that the size of the guiding device is very small and it is inconvenient to hold when used. Optionally, multiple guiding devices can be installed on a base 15. When using the micron-level microwire-through-microtube guiding device, the operator holds the base, first inserts the microtube 21 into the main body 12 of the guiding device, and then inserts the microwire 22 from the main body 11. The microwire 22 is guided along the side wall of the main body 11 into the interior of the main body 12 and docks with the hollow cavity of the microtube 21.

[0033] In summary, the present invention provides a micron-level microwire-through-microtube guiding device, wherein the main body has a first opening and a second opening with different opening sizes, the first opening with a smaller opening on the main body is connected to the neck, the neck fixes the microtube, and the microwire is inserted from the second opening with a larger opening on the main body, so that the natural shaking of the human hand has no effect on the operation of manually inserting the microwire into the guiding device, and the microwire can shrink along the main body to the neck and achieve docking with the hollow cavity of the microtube. The matching design of the main body and the neck enables the operator to easily, quickly and with high quality complete the micron-level microwire through the microtube operation, saving the operator's time and energy, and reducing the loss of materials during the operation. In order to make the use of the micron-level microwire through the microtube guiding device more convenient, some other designs are also made, for example, a guiding port is also provided on the neck, so that the operation of inserting the microtube into the neck and fixing it is simpler, saving the operator's time and experience. Further, the neck can be set to have different inner diameter sizes, and the application can be selected according to the needs. A plurality of accommodating cavities with different inner diameter sizes can also be provided on a guiding device, so that a single guiding device can adapt to the application of microtubes of different sizes, and the use is flexible and simple. The present invention also provides a micron-level micro-wire-to-micro-tube guiding device, in which the guiding device is mounted on a base so as to be hand-held by an operator.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. In addition to the above embodiments, there may also be different variations. The technical features of the above embodiments may be combined with each other. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A micron-sized microwire-to-microtube guiding device, used for passing a micron-sized microwire into a microtube, characterized in that: It comprises a main body and a neck which are connected to each other, the main body has a first opening and a second opening, the first opening is connected to the second opening through a side wall, and the inner diameter of the second opening is greater than the inner diameter of the first opening; The neck is a hollow structure, and one end of the neck is connected to the first opening; It also includes a guide port, wherein the main body and the guide port are respectively connected to two opposite ends of the neck; the guide port is an open structure, and one end connected to the neck is a narrow opening; The neck includes a first neck and a second neck, one end of the first neck is connected to the main body, the other end of the first neck is sleeved with one end of the second neck, and the other end of the second neck is connected to the guide port; or, the neck includes more than two accommodating chambers connected in sequence, the inner diameter of the accommodating chamber increases step by step, and two adjacent accommodating chambers are connected by a reducer, and the end of the reducer close to the main body is a narrow opening.

2. The micron-scale microwire-to-microtube guiding device according to claim 1, characterized in that: The main body is an open structure.

3. The micron-scale microwire-to-microtube guiding device according to claim 1, characterized in that: The side wall of the main body is a smooth inclined surface; Alternatively, the side wall of the main body is a curved surface.

4. The micron-scale microwire-to-microtube guiding device according to claim 1, characterized in that: The central axes of the accommodating cavities are on the same straight line; Alternatively, the orthogonal projections of the accommodating cavities are all contained within the projection of the accommodating cavity with the largest inner diameter.

5. The micron-scale microwire-to-microtube guiding device according to claim 1, characterized in that: The gap between the neck and the microtube is 0-20 μm.

6. The micron-scale microwire-to-microtube guiding device according to claim 1, characterized in that: The second opening of the main body has an inner diameter of at least 600 μm.

7. A micron-sized microwire-to-microtube guiding device, used for passing a micron-sized microwire into a microtube, characterized in that: The invention comprises a base and several micron-scale micro-wire-to-micro-tube guiding devices as described in any one of claims 1 to 6 mounted on the base.

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