Cochlear implant device and cochlear implant

Abstract

The present invention provides a cochlear implant device and a cochlear implant. The cochlear implant device includes a tubular structure formed by winding a stent monofilament, and a signal part. The tubular structure has an implanted state and a released state. In the implanted state, the tubular structure is configured to be disposed on an implantation guiding device and to be implanted into a cochlea along with the implantation guiding device. During the conversion of the tubular structure from the implanted state to the released state, the tubular structure expands with a diameter change along the radial direction. The signal part is disposed on the stent monofilament and is used for emitting or receiving signals. With such a setting, the cochlear implant device can adapt to the individual differences of different cochleas, ensure that the signal part is closely attached to the cochlea after implantation, ensure excellent signal stimulation effects, improve the accuracy of the signal position, and enhance the use effect of patients.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and particularly to a cochlear implant device and a cochlear implant. Background Art

[0002] A cochlear implant is an implantable auditory assistive device, which includes an external device part and an implant device part. The external device part is composed of a microphone, a speech processor, and a signal transmitter for sending instructions to the implant device part. The implant device part is composed of a signal receiving and decoding module and a signal part array. Doctors implant the signal part into the cochlea. The signal part array is, for example, an electrode array. By applying signal stimulation to the still intact auditory nerve in the cochlea through the signal part, a severely deaf patient can generate a certain sense of sound. Auditory neurons are distributed on one side of the inner cavity of the cochlea. The closer the signal part is to the neurons in the cochlea and the more stable the relative position is, the better the stimulation effect. Therefore, it is particularly important to ensure the close fit and the stable relative position between the signal part and the neurons in the cochlea.

[0003] However, in practical applications, due to individual differences among patients, the cross-sectional shapes along the axis in the cochleas of different patients are all different. After implantation, the signal part array does not fit tightly with the cochlea and is prone to displacement in the cochlea, resulting in the signal part not being in the predetermined position, thereby affecting the signal stimulation effect. Moreover, since the signal part array does not fit tightly with the cochlea, the signal part array cannot directly contact the inner wall of the cochlea, which will affect the stimulation effect. In current technologies, although various methods are used to make the linearly arranged signal parts, such as electrodes, bend and fit on the inner wall of the cochlea after implantation, the unevenness of the inner wall of the cochlea in a local range will cause some signal parts to be suspended and far from the inner wall of the cochlea, resulting in a weakened signal stimulation effect, reduced accuracy, and affecting the final use effect.

[0004] Therefore, developing a cochlear implant device and a cochlear implant that can adapt to the individual differences of different cochleas, the signal part after implantation fits tightly with the cochlea, enables the signal part to directly contact the inside of the cochlea, ensures an excellent signal stimulation effect, improves the accuracy of the signal position, and enhances the use effect has become an urgent problem to be solved by manufacturers of cochlear implant devices and cochlear implants. Summary of the Invention

[0005] The purpose of the present invention is to provide a cochlear implant device and a cochlear implant to solve the problems that the current cochlear implant device cannot adapt to different cochleas, the signal part after implantation does not fit tightly with the cochlea, resulting in the signal part not being able to directly contact the inside of the cochlea, poor signal stimulation effect, poor signal position accuracy, and poor use effect.

[0006] To solve the above technical problems, the present invention provides a cochlear implant device, comprising: a tubular structure formed by coiling a stent monofilament, and a signal part; the tubular structure has an implanted state and a released state, in the implanted state, the tubular structure is configured to be disposed on an implantation guiding device and is used to be implanted into a cochlea along with the implantation guiding device; during the conversion of the tubular structure from the implanted state to the released state, the tubular structure expands with a variable diameter in the radial direction; the signal part is disposed on the stent monofilament and is used to emit or receive signals.

[0007] Optionally, the tubular structure is formed by coiling at least two of the stent monofilaments along different trajectories.

[0008] Optionally, at least one signal part is disposed on at least one of the stent monofilaments.

[0009] Optionally, one signal part is disposed on each of the stent monofilaments, the lengths of each of the stent monofilaments are equal, and each of the signal parts is disposed at equal intervals along the axial direction of the stent monofilament.

[0010] Optionally, the signal part is disposed at the intersection of two of the stent monofilaments, and the signal part is located closer to the outer side of the tubular structure.

[0011] Optionally, the tubular structure is formed by weaving at least two of the stent monofilaments, and the number of signal parts disposed on each of the stent monofilaments is different.

[0012] Optionally, at least one of the signal parts is disposed on each of the stent monofilaments.

[0013] Optionally, the cochlear implant device further comprises a wire, the wire is connected to the signal part; the stent monofilament comprises a stent monofilament body and a wire groove, the wire groove extends along the axial direction of the stent monofilament body, and the wire is disposed in the wire groove.

[0014] Optionally, the signal part is disposed on the stent monofilament body and is located outside the wire groove.

[0015] Optionally, the signal part comprises an electrical signal component and / or an optical signal component; the electrical signal component comprises an electrode, and the optical signal component comprises an LED and / or a light intensity sensor.

[0016] Optionally, the stent monofilament further comprises a medicine groove for accommodating medicine.

[0017] Optionally, the stent monofilament comprises an optical fiber, and the signal part comprises an optical fiber light transmissive opening for transmitting light.

[0018] Optionally, the stent monofilament further includes a stent monofilament body and an optical fiber groove. The optical fiber groove extends along the axial direction of the stent monofilament body, and the optical fiber is disposed in the optical fiber groove.

[0019] To solve the above technical problems, the present invention further provides a cochlear implant, including: the cochlear implant device as described above and a cochlear implant external device. The cochlear implant external device is signal-connected to the cochlear implant device.

[0020] In a cochlear implant device and a cochlear implant provided by the present invention, the cochlear implant device includes a tubular structure formed by winding stent monofilaments and a signal part; the tubular structure has an implanted state and a released state. In the implanted state, the tubular structure is configured to be disposed on an implantation guiding device and to be implanted into a cochlea along with the implantation guiding device; during the conversion of the tubular structure from the implanted state to the released state, the tubular structure expands with a variable diameter in the radial direction; the signal part is disposed on the stent monofilament and is configured to emit or receive signals. With such a setting, the cochlear implant device can adapt to individual differences of different cochleas, ensure that the signal part is closely attached to the cochlea after implantation, ensure excellent signal stimulation effects, improve the accuracy of the signal position, and enhance the use effect of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Those of ordinary skill in the art will understand that the provided drawings are used to better understand the present invention and do not constitute any limitation to the scope of the present invention. Among them:

[0022] Figure 1 is a schematic diagram of the cochlear implant device provided in Embodiment 1 and Embodiment 2 of the present invention.

[0023] Figure 2 is a schematic diagram of the cochlear implant device provided in Embodiment 1 of the present invention after being implanted into the cochlea.

[0024] Figure 3 is an unfolded schematic diagram of the cochlear implant device provided in Embodiment 1 of the present invention being implanted into the cochlea.

[0025] Figure 4 is a schematic diagram of multiple stent monofilaments provided in Embodiment 1 of the present invention.

[0026] Figure 5 is a schematic diagram of the cross-section of the stent monofilament provided in Embodiment 1 of the present invention.

[0027] In the drawings:

[0028] A - Tubular structure;

[0029] 10 - Cochlea;

[0030] 100 - Support monofilament, 110 - Support monofilament body, 120 - Wire groove;

[0031] 200 - Signal part;

[0032] 300 - Wire. Detailed implementation mode

[0033] To make the objectives, advantages and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are all in a very simplified form and not drawn to scale, and are only used to conveniently and clearly assist in explaining the objectives of the embodiments of the present invention. In addition, the structures shown in the accompanying drawings are often part of the actual structures. In particular, the accompanying drawings need to show different emphases and sometimes use different scales.

[0034] As used in this specification, the singular forms "a", "an" and "the" include plural objects unless the context clearly indicates otherwise. As used in this specification, the term "or" is generally used in the sense of including "and / or" unless the context clearly indicates otherwise. In addition, in the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, some well-known technical features are not described to avoid confusion with the present invention.

[0035] In a cochlear implant device and a cochlear implant provided by the present invention, the cochlear implant device includes a tubular structure formed by coiling support monofilaments and a signal part; the tubular structure has an implanted state and a released state. In the implanted state, the tubular structure is used to be arranged on an implantation guiding device and is used to be implanted into a cochlea along with the implantation guiding device; during the conversion of the tubular structure from the implanted state to the released state, the tubular structure expands with a variable diameter in the radial direction; the signal part is arranged on the support monofilament and is used to emit or receive signals. With such a setting, the cochlear implant device can adapt to the individual differences of different cochleas, ensure that the signal part is closely attached to the cochlea after implantation, ensure excellent signal stimulation effects, improve the accuracy of the signal position, and enhance the use effect of patients.

[0036] The following is a description with reference to the accompanying drawings.

[0037]

Embodiment 1

[0038] Please refer to Figures 1 to 5 , Figure 1 which is a schematic diagram of the cochlear implant device provided by Embodiment 1 and Embodiment 2 of the present invention; Figure 2Schematic diagram of the cochlear implant device provided in the first embodiment after being implanted into the cochlea; Figure 3 Expanded schematic diagram of the cochlear implant device provided in the first embodiment being implanted into the cochlea; Figure 4 Schematic diagram of multiple stent monofilaments provided in the first embodiment; Figure 5 Schematic diagram of the cross-section of the stent monofilament provided in the first embodiment.

[0039] Please refer to Figure 1 As shown, the cochlear implant device includes: a stent monofilament 100 and a signal part 200.

[0040] As Figure 1 shown, the stent monofilament 100 spirals to form a tubular structure A. The stent monofilament 100 is preferably a sheet-shaped metal wire, for example. Of course, the stent monofilament 100 is not limited to being sheet-shaped, nor is it limited to being made of metal. For example, the cross-section of the stent monofilament 100 is a circular or elliptical structure, and the stent monofilament 100 can be made of a polymer material, such as a fiber or optical fiber material, etc. When the stent monofilament 100 is spirally arranged to form the tubular structure A, the stent monofilament 100 can be spiraled or woven around a mandrel (not shown). For example, a mandrel with a diameter of 8 mm is selected, and the stent monofilament 100 is wound and woven around the mandrel by a knitting machine to finally form a stent of a tubular structure A with a diameter of 8 mm. The mandrel can be a metal mandrel. Of course, in practice, the staff can select a mandrel with a suitable diameter and shape according to the size requirements of the patient's actual cochlea 10, and by controlling the dimensions of different positions of the mandrel, further control the radial mechanical extrusion characteristics of different positions of the stent monofilament 100, so as to meet the actual situation in the patient's cochlea 10.

[0041] It should be understood that the tubular structure A formed by the stent monofilament 100 can be radially compressed or radially expanded. The tubular structure A expands with a variable diameter in the radial direction, so that the tubular structure A can match the radial size of the cochlea. At the same time, the tubular structure A can elongate or shorten along its axial length. As Figure 2As shown, the tubular structure A can also be bent along its axis to match the spiral structure of the cochlea 10, so that the tubular structure A has an implanted state and a released state. In the implanted state, the tubular structure A is configured to be disposed on an implantation guiding device (not shown) and used to be implanted into a cochlea 10 along with the implantation guiding device. The implantation guiding device is, for example, a bendable rod-shaped structure, and the stent monofilament 100 can be spirally disposed on the implantation guiding device. During the conversion of the tubular structure A from the implanted state to the released state, the axis of the tubular structure A expands in a spiral shape to match the spiral structure of the cochlea 10. The expansion means that the tubular structure A expands along its own radial direction. After the tubular structure A enters the released state, the tubular structure A can closely adhere to the cochlea 10. Such a setting enables the tubular structure A to adjust its own radial dimension in real time when unfolding according to the internal dimension of the patient's cochlea. The unfolded tubular structure A fits closely to the inner wall of the cochlea, so that each part of the stent monofilament 100 can closely adhere to the inner wall of the natural canal of the patient's cochlea, thus solving the problem that the cochlear electrode does not fit closely to the inner wall of the cochlea.

[0042] As Figure 1 With Figure 3As shown, the signal part 200 is arranged on the stent monofilament 100 and is used for emitting or receiving signals. The signal part 200 preferably includes, for example, an electrical signal component and / or an optical signal component. Preferably, the electrical signal component can be used to emit an electrical signal or receive signals in the cochlea. The optical signal component can be used to emit an optical signal. Both the electrical signal and the optical signal can stimulate the nervous system in the cochlea and directly excite the auditory nerve to restore or reconstruct the auditory function of deaf patients. The position where the signal part 200 is arranged on the stent monofilament 100 is matched according to the position where the cochlea 10 needs signal stimulation (such as the position of neurons). For example, after the staff determines the actual situation of the patient's cochlea, they simulate the structure of the stent monofilament 100 in the released state outside the body, and then set the signal part 200 according to the position where signal stimulation is required. With such a setting, the signal part 200 on the stent monofilament 100 can be accurately positioned at the position where signal stimulation is required, enabling the cochlear implant device to adapt to the individual differences of different cochleas, adapt to the unique uneven shape of the inner wall of the cochlea of different patients, and ensure excellent signal stimulation effects. Moreover, due to the tension of the stent monofilament 100 in the released state, the relative position between the signal part 200 and the inner wall of the cochlea is fixed and stable, enabling the signal part 200 to be in direct contact with and closely fit the inner part of the cochlea 10, and it is not easy to loosen and displace after the operation, thus avoiding the problem that the cochlea is prone to displacement after the operation, improving the accuracy of the stimulation signal position, and enhancing the use effect of the patient. In this embodiment, the signal part 200 includes electrodes, so that the electrode array carried on the stent monofilament 100 is closely attached to the inner wall of the cochlea, enabling the electrode array to better stimulate the auditory nerve.

[0043] The cochlear implant device may include one stent monofilament 100 or two stent monofilaments 100. Preferably, as Figure 1As shown, the cochlear implant device includes at least two of the stent monofilaments 100. The tubular structure A is formed by at least two of the stent monofilaments 100 spiraling along different trajectories. The stent monofilaments 100 play a supporting role throughout the tubular structure A. Compared with a single stent monofilament 100, the tubular structure A has better radial support force, ensuring the stability of the tubular structure A inside the cochlea 10. It can be understood that the "different trajectories" means that the trajectories of each stent monofilament 100 spiraling have at least partial non-overlap. That is, the spiraling angles of each stent monofilament 100 are different, so that the signal parts 200 on the stent monofilaments 100 can be arranged at more positions, improving the accuracy of signal stimulation. Preferably, the tubular structure A is formed by braiding at least two of the stent monofilaments 100. More preferably, the number of signal parts 200 provided on each stent monofilament 100 is different. For example, one stent monofilament 100 is provided with one signal part 200, and another stent monofilament 100 is provided with two signal parts 200. Of course, in the straightened state of the stent monofilament 100, the length of one stent monofilament 100 can also be different from that of another stent monofilament 100. The staff calculates the integrated position of each signal part 200 on the stent monofilament 100 according to the actual change in the cochlear diameter at the cochlear implantation site in the patient's cochlea, and then through parameters such as the braiding combination process, the diameter of the target cochlea, and the signal size. In the first embodiment, as Figure 1 shown, the tubular structure A is, for example, formed by braiding three stent monofilaments 100. One signal part 200 is provided on each of the two stent monofilaments 100, and no signal part 200 is provided on one of them. The three stent monofilaments 100 are arranged in a staggered manner, so that the signal part 200 can closely adhere to the target position of the cochlea. More preferably, the signal part 200 is arranged at the intersection of the two stent monofilaments 100, and the signal part 200 is located closer to the outside of the tubular structure A, so that the signal part 200 can more closely adhere to the target position of the cochlea. In fact, the signal part 200 needs to closely adhere to the inner wall of the cochlea. If the signal part 200 is arranged at the intersection of the two stent monofilaments 100, the signal part 200 needs to be arranged on the stent monofilament 100 closest to the cochlea to avoid being blocked by other stent monofilaments 100. Of course, in other embodiments, the number of the stent monofilaments 100 and the signal parts 200 is not limited. The stent monofilaments 100 can be five, six, eight, etc. The number of signal parts 200 on each stent monofilament 100 can also be two, three, four, etc. The distance between each signal part 200 on a single stent monofilament 100 is not limited and can be calculated according to the actual situation of the cochlea 10. As a preference, at least one of the signal parts 200 is provided on each stent monofilament 100, so that each stent monofilament 100 can play a supporting role and also has the role of carrying the signal part 200.

[0044] Preferably, asFigure 4 As shown, at least one signal portion 200 is provided on at least one of the stent filaments 100. The setting position of the signal portion 200 can be set according to actual needs, so that the signal portion 200 can provide a stimulation signal. Preferably, as Figure 4 shown, one signal portion 200 is provided on each of the stent filaments 100. In the state where the stent filaments 100 are straightened, the lengths of each of the stent filaments 100 are equal, and each signal portion 200 is arranged at equal intervals along the axial direction of the stent filament 100. Thus, when each stent filament 100 is woven and combined, it is convenient to confirm the position of the signal portion 200 on each stent filament 100, improving the weaving efficiency and the quality of weaving. In the first embodiment, each signal portion 200 is arranged at an interval of six millimeters along the axial direction of the stent filament 100.

[0045] Preferably, as Figure 5 shown, the signal portion includes an electrical signal component and / or an optical signal component; the electrical signal component includes an electrode, and the optical signal component includes an LED and / or a light intensity sensor. In the first embodiment, the signal portion 200 includes an electrical signal component, and the electrical signal component includes an electrode. The electrode is, for example, a platinum-iridium alloy thin electrode with a length and width of 1 millimeter, and is connected to a wire 300 by welding. In another embodiment, the signal portion 200 includes an optical signal component, and the optical signal component includes an LED and / or a light intensity sensor. Preferably, the optical signal component is connected to the wire 300 for receiving signals, and then stimulates the cochlear nerve by means of light stimulation to restore or reconstruct the auditory function of the deaf. The optical signal component can be an LED, a light intensity sensor, or can include both an LED and a light intensity sensor. Similarly, the setting position, quantity, etc. of the optical signal component can be calculated according to the actual condition of the patient's cochlea. In other embodiments, the signal portion includes both an electrical signal component and an optical signal component.

[0046] As Figure 4 and Figure 5As shown, the cochlear implant device further includes a wire 300, which is connected to the signal part 200. The wire 300 is, for example, a gold wire with an insulating layer and a diameter of thirty micrometers. Of course, the material of the wire 300 is not limited to gold wire and can also be other conductive materials. Those skilled in the art can select according to actual needs and will not be elaborated herein. The wire 300 is used to transmit electrical signals, etc. The stent monofilament 100 includes a stent monofilament body 110 and a wire groove 120. The wire groove 120 extends along the axial direction of the stent monofilament body 110, and the wire 300 is disposed in the wire groove 120. The wire groove 120 is not limited to a straight line along the axial direction of the stent monofilament body 110, but is set following the shape of the stent monofilament body 110. It is not limited to the strictly defined axial direction of the stent monofilament body 110, but represents the bar-shaped length direction of the strip-shaped stent monofilament body 110. For example, the stent monofilament body 110 is a nitinol wire with a width and thickness of one hundred micrometers, the depth of the wire groove 120 is fifty micrometers, and the electrode is adhesively integrated with the stent monofilament body 110 through an insulating material. The signal part 200, the wire 300, and the stent monofilament 100 are integrated in this way, ensuring that when the wire 300 is connected to the signal part 200, the external structural dimensions of the stent monofilament 100 will not increase. Moreover, it prevents the wire 300 from being misaligned or displaced, affecting the implantation position of the cochlear implant device, and ensuring the stability of the cochlear implant device. The dimensions such as the depth, length, and width of the wire groove 120 can be set by those skilled in the art according to actual needs and will not be elaborated herein. Optionally, the length of the wire groove 120 is set to match the actual length dimension of the wire, avoiding setting too many structures on the stent monofilament 100, and thus avoiding affecting the mechanical properties of the stent monofilament 100 due to too many structures.

[0047] Preferably, the signal part 200 is, for example, disposed on the stent monofilament body 110 and outside the wire groove 110. For example, the wire groove 110 faces a certain direction, and the signal part 200 is disposed at the position facing the notch, so that on the one hand, the signal part 200 can be disposed on the stent monofilament body 110 to achieve close contact with the cochlea, and on the other hand, the signal part 200 can cover the notch of the wire groove 110 to prevent the wire 300 in the groove from slipping out, thereby optimizing the structure of the stent monofilament 100 and ensuring the quality of the stent monofilament 100.

[0048] Preferably, the stent monofilament 100 further includes a medicine groove (not shown), which is used to contain medicine. The medicine groove is preferably arranged to extend along the axial direction of the stent monofilament 100. More preferably, the medicine groove is arranged to communicate with the wire groove 110. It can be understood that the wire groove 110 and the medicine groove are arranged to overlap. When the staff processes the wire groove 110 and the medicine groove, only one groove needs to be processed. More preferably, in the first embodiment, the groove on one side of the signal part 200 is arranged as the wire groove 120, and the groove on the other side of the signal part 200 is arranged as the medicine groove. Of course, the staff can also additionally open a medicine groove on the stent monofilament 100, and the structure, size and position of the medicine groove can be set according to actual needs. When placing the medicine, the staff uses the method of fixed-point spraying to place some anti-inflammatory drugs or antibiotics, etc. In actual use, the staff can also cover a coating for slow-release drugs or a hydrophilic coating on the surface of the stent monofilament 100 according to actual needs.

[0049] The following will combine Figures 1 to 5 to specifically introduce the processing process of the cochlear implant device provided in this embodiment:

[0050] First, a nickel-titanium alloy plate with a thickness of one hundred micrometers is used to laser engrave grooves (wire grooves and medicine grooves) with a width and depth of fifty micrometers, and then cut into a stent monofilament 100 with a width of one hundred micrometers. Then, the signal part 200 is adhesively integrated with the stent monofilament 100 through an insulating material.

[0051] Then, the wire 300 is placed into the wire groove 120.

[0052] Finally, as Figure 4 shown, the integrated stent monofilament 100, signal part 200 and wire 300 are woven and integrated into a stent on a knitting machine, so that the signal part 200 on the stent monofilament 100 is located at the same circumferential position of the tubular structure A, forming a linear arrangement with equal intervals; the wire 300 is led out from one end of the monofilament stent 100 and converges and leads out.

[0053] The present invention also provides a cochlear implant, which includes the cochlear implant device as described above and a cochlear implant external device, and the cochlear implant external device is signal-connected to the cochlear implant device. The cochlear implant has the beneficial effects possessed by the cochlear implant device, which will not be elaborated here. For the structures and principles of other components of the cochlear implant, reference can be made to the prior art, which will not be expanded here.

[0054]

Embodiment Two

[0055] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the cochlear implant device provided in the first embodiment and the second embodiment.

[0056] The same parts of the cochlear implant device in the second embodiment are not described again. Only the differences will be described below.

[0057] In the second embodiment, as Figure 1 shown, the stent monofilament 100 of the cochlear implant device includes an optical fiber, and the signal part 200 includes an optical fiber light-transmitting port for transmitting light. The optical fiber can be directly set as a tubular structure A, and the optical signal of the optical fiber is used for optical stimulation through the optical fiber light-transmitting port. The optical fiber not only has a supporting function but also plays a role in optical stimulation. In actual use, the staff can first enhance the strength of the optical fiber to ensure that it can meet the standard for supporting the cochlea.

[0058] Furthermore, the stent monofilament 100 further includes a stent monofilament body 110 and an optical fiber groove. The optical fiber groove extends along the axial direction of the stent monofilament body 110, and the optical fiber is arranged in the optical fiber groove, so that the optical fiber with lower strength can be accommodated in the stent monofilament 100, enabling the stent monofilament 100 to have a supporting function and ensuring that the tubular structure A has a supporting function.

[0059] It should be noted that the key points described in each embodiment are the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. In addition, the different parts in the first embodiment and the second embodiment can be combined and used. For example, the integrated structure of the signal part 200, the stent monofilament 100, and the wire 300 in the first embodiment is combined with the optical fiber in the second embodiment to jointly form the same tubular structure, so that the cochlear implant device can stimulate the cochlear nerve with electrical signals and can also stimulate the cochlear nerve with optical signals, thereby laying a foundation for improving the use effect of patients.

[0060] In summary, in a cochlear implant device and a cochlear implant provided by the present invention, the cochlear implant device includes a tubular structure formed by winding stent monofilaments and a signal part; the tubular structure has an implanted state and a released state. In the implanted state, the tubular structure is used to be arranged on an implantation guiding device and is used to be implanted into a cochlea along with the implantation guiding device; during the conversion of the tubular structure from the implanted state to the released state, the tubular structure expands with a variable diameter in the radial direction; the signal part is arranged on the stent monofilament and is used to send or receive signals. With such a setting, the cochlear implant device can adapt to the individual differences of different cochleas, ensure that the signal part is closely attached to the cochlea after implantation, ensure excellent signal stimulation effects, improve the accuracy of the signal position, and enhance the use effect of patients.

[0061] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art of the present invention based on the above disclosure fall within the scope of protection of the claims.

Claims

1. An artificial cochlear implant device, characterized in that, Comprising: A tubular structure formed by coiling a stent monofilament, and a signal part; The tubular structure has an implanted state and a released state. In the implanted state, the tubular structure is configured to be disposed on an implantation guiding device and implanted into a cochlea along with the implantation guiding device. During the conversion of the tubular structure from the implanted state to the released state, the tubular structure expands with a reduced diameter in the radial direction. The tubular structure is formed by coiling at least two stent monofilaments along different trajectories; The signal part is disposed on the stent monofilament and is configured to emit or receive signals. The tubular structure is formed by braiding at least two stent monofilaments, and the number of signal parts disposed on each stent monofilament is different; The cochlear implant device further includes a wire, and the wire is connected to the signal part. The stent monofilament includes a stent monofilament body and a wire groove, and the wire groove extends along the axial direction of the stent monofilament body, and the wire is disposed in the wire groove.

2. The cochlear implant device according to claim 1, wherein At least one signal part is disposed on at least one stent monofilament.

3. The cochlear implant device according to claim 2, wherein One signal part is disposed on each stent monofilament, the length of each stent monofilament is equal, and each signal part is equidistantly disposed along the axial direction of the stent monofilament.

4. The cochlear implant device according to claim 1, characterized in that, The signal part is disposed at the intersection of two stent monofilaments, and the signal part is located closer to the outer side of the tubular structure.

5. The cochlear implant device according to claim 1, wherein At least one signal part is disposed on each stent monofilament.

6. The cochlear implant device according to claim 1, wherein The signal part is disposed on the stent monofilament body and is located outside the wire groove.

7. The cochlear implant device according to claim 1, characterized in that, The signal part includes an electrical signal component and / or an optical signal component; the electrical signal component includes an electrode, and the optical signal component includes an LED and / or a light intensity sensor.

8. The cochlear implant device according to claim 1, characterized in that, The stent monofilament further includes a drug groove for accommodating a drug.

9. The cochlear implant device according to claim 1, wherein The stent monofilament includes an optical fiber, and the signal part includes an optical fiber light-transmitting port for transmitting light.

10. The cochlear implant device according to claim 9, wherein, The stent monofilament further includes a stent monofilament body and an optical fiber groove, and the optical fiber groove extends along the axial direction of the stent monofilament body, and the optical fiber is disposed in the optical fiber groove.

11. A cochlear implant, characterized in that, Comprising: The cochlear implant device according to any one of claims 1-10 and a cochlear implant external device, and the cochlear implant external device is in signal connection with the cochlear implant device.

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