Artificial cochlea implant protection device for MRI (Magnetic Resonance Imaging) examination

Abstract

The invention relates to the technical field of auditory function equipment, and discloses an artificial cochlea implant protection device for MRI (Magnetic Resonance Imaging) examination, the artificial cochlea implant protection device comprises a fixed shell and a cooling bag, the inner side of the fixed shell is provided with a positioning cavity, the inner side opening of the positioning cavity is used for being matched and clamped with a bone groove, the fixed shell is made of silica gel, and the cooling bag is arranged in the positioning cavity. A clamping groove is formed in the inner side of the fixed shell and surrounds the periphery of the positioning cavity; the cooling bag comprises a bag body and a cooling medium filled in the bag body, the cooling bag is arranged in the clamping groove, and at least part of the cooling bag protrudes out of the inner side face of the fixed shell and is used for being attached to the skin; the cooling bag can take away heat emitted by the implant of the patient during MRI examination after being filled with the cooling medium, and therefore the problems that in the prior art, due to the fact that the implant is hot, the patient feels strong in burning feeling, and MRI examination is difficult to conduct are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hearing function equipment, and in particular to a cochlear implant protection device for MRI examination. Background Art

[0002] The cochlear implant, also known as the electronic cochlear or bionic ear, is a high-tech electronic device and one of the important achievements of modern medicine. The cochlear implant system usually consists of two parts: an external part and an internal part. The external part includes a microphone, a speech processor, and a transmission coil, which are worn by the patient himself on the bone groove opened during the cochlear implant surgery; the internal part includes the implant, which needs to be implanted by the doctor through surgery. The implant is implanted in the mastoid bone above and behind the auricle, and its stimulating electrode is implanted through the middle ear into the scala tympani of the cochlea in the inner ear.

[0003] Currently, when patients with cochlear implants need to undergo MRI examinations due to ear diseases or other diseases, the implant located under their skin cannot be removed at will. However, the implant contains metal parts and magnets, which will release a lot of heat under the action of the magnetic field and cause burns to the patient's soft tissue. Some patients even find it difficult to persist until the end of the examination. Summary of the invention

[0004] The purpose of the present invention is to provide a cochlear implant protection device for MRI examination, which solves the problem in the prior art that the implant becomes hot and causes the patient to have a strong burning sensation, making it difficult to perform MRI examination.

[0005] In order to achieve the above-mentioned object, the technical solution of the present invention provides a cochlear implant protection device for MRI examination, the protection device comprising:

[0006] A fixed shell, wherein a positioning cavity is provided on the inner side of the fixed shell, wherein the inner opening of the positioning cavity is used for engaging with the bone groove, wherein the material of the fixed shell is silicone, and a card slot is provided on the inner side of the fixed shell around the outer periphery of the positioning cavity;

[0007] A cooling sac comprises a sac body and a cooling medium filled in the sac body. The cooling sac is arranged in the slot, and the sac body at least partially protrudes from the inner side surface of the fixed shell for fitting with the skin.

[0008] As an optional solution, a heat dissipation hole is opened on the outer side of the fixed shell, and the heat dissipation hole is communicated with the positioning cavity.

[0009] As an optional solution, the bag body includes a main body and a flange portion, the main body is arranged in the slot, the flange portion extends radially outward along the inner section of the main body, the bottom end surface of the flange portion is used to fit the skin, and the outer contour of the flange portion is used to wrap the bone groove.

[0010] As an optional solution, a liquid inlet pipe and a liquid outlet pipe are also included;

[0011] The outer circumference of the main body is provided with a liquid inlet and a liquid outlet at intervals, and the outer circumference of the fixed shell is provided with a liquid inlet end and a liquid outlet end at positions corresponding to the liquid inlet and the liquid outlet respectively;

[0012] The liquid outlet end of the liquid inlet pipe passes through the liquid inlet end of the fixed shell and communicates with the liquid inlet, and the liquid inlet end of the liquid outlet pipe passes through the liquid outlet end of the fixed shell and communicates with the liquid outlet.

[0013] As an optional solution, the liquid inlet pipeline is further provided with a first rubber plug, a limit plug and a spring;

[0014] The first rubber stopper is fixedly disposed in the liquid inlet pipe, and the first rubber stopper seals the liquid inlet pipe;

[0015] The stopper is slidably disposed in the liquid inlet pipe, and the sliding direction of the stopper is the same as the length direction of the tube body of the liquid inlet pipe. The stopper is used to limit the position of the syringe that fills the cooling medium into the cooling bag.

[0016] The two ends of the spring are respectively fixed on the first rubber plug and the limit plug. When the spring is at the maximum length position in a natural state, the limit plug is located at the liquid inlet end of the liquid inlet pipe.

[0017] As an optional solution, a direction guide groove for allowing the strap to pass through and for guiding the binding direction of the strap is formed on the outer periphery of the fixed shell.

[0018] As an optional solution, the cooling medium in the capsule is alcohol or water.

[0019] As an optional solution, the fixed shell is made of a transparent material.

[0020] The present invention provides a cochlear implant protection device for MRI examination, which has the following beneficial effects compared with the prior art: in the embodiment of the present invention, a fixed shell made of silicone material is engaged with the bone groove through a positioning cavity, and a slot is arranged around the outer periphery of the positioning cavity of the fixed shell, and a cooling bag for fitting with the skin is arranged in the slot. The cooling bag can take away the heat generated by the patient's implant in the magnetic field, thereby solving the problem in the prior art that the implant becomes hot and causes the patient to have a strong burning sensation, making it difficult to perform MRI examination. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an overall schematic diagram of a cochlear implant protection device for MRI examination according to an embodiment of the present invention;

[0022] Figure 2 is an exploded view of a cochlear implant protection device for MRI examination according to an embodiment of the present invention;

[0023] Figure 3 is a partial cross-sectional view of a cochlear implant protection device for MRI examination according to an embodiment of the present invention after being installed in a patient's bone socket;

[0024] Figure 4 This is a diagram showing parts of a cochlear implant protection device for MRI examination according to an embodiment of the present invention;

[0025] Figure 5 is a schematic diagram of the back side of a cochlear implant protection device for MRI examination according to an embodiment of the present invention;

[0026] Figure 6 It is a schematic diagram of installing a cochlear implant protection device for MRI examination in a cooling bag according to an embodiment of the present invention;

[0027] In the figure, 1. fixed shell; 101. positioning cavity; 102. heat dissipation hole; 103. direction guide groove; 104. card slot; 2. cooling bag; 201. main body; 202. flange; 3. liquid inlet pipe; 301. first rubber plug; 302. limit plug; 303. spring; 4. liquid outlet pipe; 5. skin. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be understood that the terms "connected", "connected", "fixed" and the like used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a welding connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1 to 6 As shown, a preferred embodiment of the present invention provides a cochlear implant protection device for MRI examination, and the protection device includes: a fixed shell 1 and a cooling bag 2.

[0032] A positioning cavity 101 is provided on the inner side of the fixed shell 1. The inner opening of the positioning cavity 101 is used to engage with the bone groove. The edge positions of the inner opening of the positioning cavity 101 are chamfered to avoid scratching the skin 5. The positioning cavity 101 can prevent the skin 5 from being squeezed against the surface of the fixed shell 1 and causing pain to the patient.

[0033] The material of the fixed shell 1 is silicone, and a card slot 104 is provided on the inner side of the fixed shell 1 around the outer periphery of the positioning cavity 101. The fixing method of the fixed shell 1 is similar to that of the external device. The fixed shell 1 covers the bone groove opened when the patient implants the cochlear implant, and the on-site medical staff uses a strap or bandage to tie the fixed shell 1 to complete the fixation.

[0034] The cooling capsule 2 includes a capsule body and a cooling medium filled in the capsule body. The cooling capsule 2 is arranged in the card slot 104, and the cooling capsule 2 at least partially protrudes from the inner side surface of the fixed shell 1, and is used to fit with the skin 5. The shape of the capsule is not further limited here. The capsule body can be an annular capsule. At this time, the cooling capsule 2 is only located at the outer edge of the fixed shell 1, and the middle position of the bottom end surface of the capsule body can be empty, so that the skin 5 can obtain a better natural heat dissipation effect; the capsule body can be completely similar to the shape of the fixed shell 1. At this time, the bottom end surface of the capsule body completely covers the skin in the bone groove, the fitting area of ​​the cooling capsule 2 and the patient's scalp is the largest, and the cooling effect of the cooling capsule 2 on the heat dissipated by the implant is the strongest.

[0035] Based on this, the fixed shell 1 is directly installed in the bone groove of the patient where the external machine is usually installed, and the cooling bag 2 is arranged in the fixed shell 1 to take away the heat released by the external machine during the MRI examination, thereby solving the problem in the prior art that the implant becomes hot and causes the patient to have a strong burning sensation, making it difficult to perform MRI examination.

[0036] In actual applications, in addition to heat, other problems may occur in the implant under the action of the magnetic field. For example, the metal coil in the implant may shift under the action of the magnetic field and even cause some parts to fall out, which may require the patient to undergo re-surgery to restore the implant position. Moreover, as the examination time increases, the possibility of the above problems increases. However, in the daily treatment of such patients, on the premise of ensuring the examination effect of such patients, in order to reduce their pain of diagnosis and treatment, doctors often perform repeated scans on the parts that need to be examined to avoid secondary examinations. This also causes the MRI examination time of such patients to be 2-3 times that of normal patients, which invisibly increases the risk of subcutaneous implantation of patients. Therefore, the fixed shell of the protective device uses a method of clamping with the bone groove to fix the fixed shell 1 itself while also fixing the position of the implant, thereby avoiding its displacement under the skin to the greatest extent.

[0037] Furthermore, if Figures 1 to 6 As shown, a heat dissipation hole 102 is provided on the outer side of the fixed shell 1, and the heat dissipation hole 102 is connected to the positioning cavity 101. The heat dissipation hole 102 ensures air flow at the position of the patient's covered skin 5, thereby taking away part of the heat released by the implant through natural heat dissipation.

[0038] The aperture and setting spacing of the heat dissipation holes 102 are not further limited here. When the aperture of the heat dissipation holes 102 is large, the on-site nurse can observe the patient's scalp condition through the heat dissipation holes 102 to control the progress of the MRI examination according to the patient's condition, thereby optimizing the diagnosis and treatment experience of such patients during MRI examinations.

[0039] Since the bandages or straps used by on-site medical staff to fix the housing 1 are common medical products with good air permeability, even if the on-site medical staff cover the heat dissipation holes 102 with the bandages or straps, the heat dissipation effect will not be greatly affected.

[0040] Furthermore, if Figures 1 to 6 As shown, the bag body includes a main body 201 and a flange 202, and the main body 201 is arranged in the slot 104. At this time, the shape of the main body 201 is safely the same as the slot 104, and the main body 201 further expands so that the main body 201 and the slot 104 are in an interference state, so the main body 201 will not naturally fall out of the slot 104.

[0041] The bottom end surface of the flange portion 202 is used to fit with the skin 5, and the parts of the flange portion 202 that contact the skin 5 are all made of flexible material. The outer contour of the flange portion 202 is used to wrap the bone groove. At this time, a part of the skin 5 covered on the surface of the bone groove position enters into the positioning cavity 101 under the extrusion of the flange portion 202. The setting of the flange portion 202 avoids the indentation on the patient's skin caused by fixing the fixed shell 1 and the pain caused by extrusion, thereby optimizing the patient's diagnosis and treatment experience.

[0042] Furthermore, if Figures 1 to 6 As shown, the protection device is also provided with a liquid inlet pipe 3 and a liquid outlet pipe 4;

[0043] The outer circumference of the main body 201 is provided with a liquid inlet and a liquid outlet at intervals, and the outer circumference of the fixed shell 1 is provided with a liquid inlet end and a liquid outlet end at positions corresponding to the liquid inlet and the liquid outlet, respectively;

[0044] The liquid outlet end of the liquid inlet pipe 3 passes through the liquid inlet end of the fixed shell 1 and is connected to the liquid inlet port, and the liquid inlet end of the liquid outlet pipe 4 passes through the liquid outlet end of the fixed shell 1 and is connected to the liquid outlet port. The liquid inlet end of the liquid inlet pipe 3 and the liquid outlet end of the liquid outlet pipe 4 are both located outside the MRI examination area. On-site medical staff can replace the cooling medium in the cooling bag 2 in real time through the liquid inlet pipe 3 and the liquid outlet pipe 4 to form a flow circuit, thereby ensuring the cooling effect of the cooling bag 2.

[0045] Furthermore, this embodiment is not shown in the accompanying drawings. The liquid inlet and liquid outlet ends of the fixed shell 1 are both provided with a second rubber plug, and the second rubber plug seals the liquid inlet or liquid outlet at the corresponding position; the liquid outlet end of the liquid inlet pipe 3 is inserted into the second rubber plug located at the liquid inlet end of the fixed shell 1, and the liquid outlet end of the liquid inlet pipe 3 is provided with a needle that can penetrate into the corresponding second rubber plug, and the liquid outlet end of the liquid inlet pipe 3 enters the liquid inlet of the cooling bag 2 through the liquid inlet end of the fixed shell 1; the outlet end of the liquid inlet pipe 3 is inserted into the second rubber plug located at the liquid outlet end of the fixed shell 1 The liquid inlet end of the liquid pipeline 4, the liquid inlet end of the liquid outlet pipeline 4 is provided with a needle that can penetrate into the corresponding second rubber plug, the liquid inlet end of the liquid outlet pipeline 4 enters the liquid outlet of the cooling bag 2 through the liquid outlet end of the fixed shell 1, and the liquid outlet end of the liquid outlet pipeline 4 is also provided with a sealing plug that can be opened by medical staff on site; at this time, the liquid inlet pipeline 3, the cooling bag 2, and the liquid outlet pipeline 4 are connected; the on-site medical staff can replace the liquid inlet pipeline 3 and the liquid outlet pipeline 4 of the cooling bag 2 to ensure the clean use of the protective device and avoid disease transmission between patients.

[0046] The materials of the liquid inlet pipe 3 and the liquid outlet pipe 4 are not further limited here, and the liquid inlet pipe 3 and the liquid outlet pipe 4 are both common medical drainage tubes.

[0047] Furthermore, if Figures 1 to 6 As shown, the liquid inlet pipeline 3 is also provided with a first rubber stopper 301 , a limit stopper 302 and a spring 303 .

[0048] The first rubber stopper 301 is fixedly disposed in the liquid inlet pipe 3 , and the first rubber stopper 301 seals the liquid inlet pipe 3 .

[0049] The limit plug 302 is slidably disposed in the liquid inlet pipe 3, and the sliding direction of the limit plug 302 is the same as the length direction of the tube body of the liquid inlet pipe 3. The limit plug 302 can clamp the syringe to prevent the syringe from entering too deeply when the on-site nurse uses the syringe to replace the cooling medium of the cooling bag 2.

[0050] The two ends of the spring 303 are respectively fixed on the first rubber stopper 301 and the limit stopper 302. When the spring 303 is at the maximum length position in the natural state, the limit stopper 302 is just located at the liquid inlet end of the liquid inlet pipe 3. The syringe operated by the on-site nurse can push the syringe bayonet, and the spring 303 is used to reset the syringe bayonet.

[0051] Furthermore, if Figures 1 to 6 As shown, the outer periphery of the fixed shell 1 is provided with a direction guiding groove 103 for the strap to pass through and for guiding the binding direction of the strap. The direction guiding groove 103 is opened on the outer periphery of the fixed shell 1 opposite to each other, and the two opposite groove walls of the direction guiding groove 103 are respectively in contact with the two sides of the strap, and the direction guiding groove 103 is used to place the strap for fixing the fixed shell 1; the groove walls of the two direction guiding grooves 103 are parallel to each other, and the strap is wound in the two direction guiding grooves 103 and fixes the fixed shell 1, and the on-site medical staff can determine the binding and winding direction by visually observing the direction of the direction guiding groove 103. At the same time, the groove wall of the direction guiding groove 103 prevents the strap from slipping when fixing the fixed shell 1, thereby reducing the difficulty of using the fixed shell 1.

[0052] Furthermore, this embodiment is not shown in the drawings, and the cooling medium in the capsule is alcohol or water.

[0053] When the cooling medium in the capsule is alcohol, the cooling effect of the cooling capsule 2 is better due to the physical properties of alcohol.

[0054] When the cooling medium in the bladder is water, it has low cost and can be used in a flowing manner, thereby improving the heat dissipation efficiency of the protective device.

[0055] Furthermore, this embodiment is not shown in the drawings, and the material of the fixed housing 1 is a transparent material to avoid interfering shadows during MRI imaging.

[0056] The working process of the present invention is as follows: first, the fixed shell 1 is installed on the patient's bone groove, and then the liquid inlet pipe 3 and the liquid outlet pipe 4 are connected to the cooling bag 2, and the cooling medium is injected into the cooling bag 2 through the liquid inlet pipe 3. After the MRI examination begins, the nurse is located outside the magnetic field area and further injects the cooling medium through the liquid inlet pipe 3. The cooling medium that cannot be carried in the cooling bag 2 flows out from the liquid outlet pipe 4, so that the cooling medium in the cooling bag 2 flows until the patient's MRI examination is completed.

[0057] In summary, the fixed shell 1 is clamped on the patient's bone socket through the positioning cavity 101, and the cooling bag 2 arranged in the fixed shell 1 can take away the heat generated by the patient's implant during MRI examination, thereby solving the problem in the prior art that the implant becomes hot and causes the patient to have a strong burning sensation, making it difficult to undergo MRI examination.

[0058] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A cochlear implant protection device for MRI examination, characterized in that: The protection device comprises: A fixed shell, wherein a positioning cavity is provided on the inner side of the fixed shell, wherein the inner opening of the positioning cavity is used for engaging with the bone groove, wherein the material of the fixed shell is silicone, and a card slot is provided on the inner side of the fixed shell around the outer periphery of the positioning cavity; A cooling sac comprises a sac body and a cooling medium filled in the sac body. The cooling sac is arranged in the slot, and the sac body at least partially protrudes from the inner side surface of the fixed shell for fitting with the skin.

2. The cochlear implant protection device for MRI examination according to claim 1, characterized in that: A heat dissipation hole is formed on the outer side of the fixed shell, and the heat dissipation hole is communicated with the positioning cavity.

3. The cochlear implant protection device for MRI examination according to claim 1, characterized in that: The capsule body includes a main body and a flange portion, wherein the main body is disposed in the card slot, and the flange portion extends radially outward along the inner section of the main body, the bottom end surface of the flange portion is used to fit the skin, and the outer contour of the flange portion is used to wrap the bone groove.

4. The cochlear implant protection device for MRI examination according to claim 3, characterized in that: Also includes a liquid inlet pipe and a liquid outlet pipe; The outer circumference of the main body is provided with a liquid inlet and a liquid outlet at intervals, and the outer circumference of the fixed shell is provided with a liquid inlet end and a liquid outlet end at positions corresponding to the liquid inlet and the liquid outlet respectively; The liquid outlet end of the liquid inlet pipe passes through the liquid inlet end of the fixed shell and communicates with the liquid inlet, and the liquid inlet end of the liquid outlet pipe passes through the liquid outlet end of the fixed shell and communicates with the liquid outlet.

5. The cochlear implant protection device for MRI examination according to claim 4, characterized in that: The liquid inlet pipeline is also provided with a first rubber plug, a limit plug and a spring; The first rubber stopper is fixedly disposed in the liquid inlet pipe, and the first rubber stopper seals the liquid inlet pipe; The stopper is slidably disposed in the liquid inlet pipe, and the sliding direction of the stopper is the same as the length direction of the tube body of the liquid inlet pipe. The stopper is used to limit the position of the syringe that fills the cooling medium into the cooling bag. The two ends of the spring are respectively fixed on the first rubber plug and the limit plug. When the spring is at the maximum length position in a natural state, the limit plug is located at the liquid inlet end of the liquid inlet pipe.

6. The cochlear implant protection device for MRI examination according to claim 1, characterized in that: The outer periphery of the fixed shell is provided with a direction guide groove for the binding belt to pass through and for guiding the binding direction of the binding belt.

7. The cochlear implant protection device for MRI examination according to claim 1, characterized in that: The cooling medium in the capsule is alcohol or water.

8. The cochlear implant protection device for MRI examination according to claim 1, characterized in that: The fixed shell is made of transparent material.

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