CN108969194B - Magnet tool in artificial cochlea - Google Patents
Magnet tool in artificial cochlea Download PDFInfo
- Publication number
- CN108969194B CN108969194B CN201810903015.7A CN201810903015A CN108969194B CN 108969194 B CN108969194 B CN 108969194B CN 201810903015 A CN201810903015 A CN 201810903015A CN 108969194 B CN108969194 B CN 108969194B
- Authority
- CN
- China
- Prior art keywords
- magnet
- push rod
- necking
- artificial cochlea
- thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000003477 cochlea Anatomy 0.000 title claims abstract description 33
- 239000007943 implant Substances 0.000 claims abstract description 22
- 230000008602 contraction Effects 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000002513 implantation Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000002595 magnetic resonance imaging Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/04—Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense, e.g. through the touch sense
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0526—Head electrodes
- A61N1/0541—Cochlear electrodes
Abstract
The invention discloses an artificial cochlea inner magnet tool.A push rod is connected with a push plate at one end, the other end of the push rod is provided with a push rod thread, the push rod thread is matched with the magnetic part thread, and the push rod is connected with a magnetic part; the push rod is sleeved with the spring, the spring is sleeved with the sheath and the outer sleeve, one end of the sheath is provided with a limiting part which is propped against a limiting ring arranged outside the outer sleeve, and the sheath is prevented from being separated from the spring when the spring rebounds; the handle is arranged between the threaded part and the outer sleeve; one end of the necking part is sleeved outside the magnetic attraction part and the threaded part, the window is arranged on the necking part and is used for placing the magnet in the artificial cochlea, the other end of the necking part is elastic necking, and the necking diameter is matched with the magnet placing opening in the artificial cochlea implant. The invention combines the implantation and the taking-out of the magnet in the artificial cochlea, realizes multiple functions of one tool, simplifies operation steps, shortens operation time, reduces pain of patients, is simple to operate, and brings great convenience to operation.
Description
Technical Field
The invention belongs to the field of medical appliances, and particularly relates to an artificial cochlear implant magnet tool.
Background
Some implantable medical devices, such as cochlear implant systems, may include subcutaneous magnets that are used to hold a plurality of external elements, such as transmission coils, in place. However, these magnets are not compatible with various medical imaging systems, such as large field Magnetic Resonance Imaging (MRI). The magnet may demagnetize or distort the image and even cause injury to the patient. In order to perform MRI on a patient with an implanted magnet, a pre-imaging surgical procedure is first required to remove the magnet before imaging can be performed, after which another post-imaging surgical procedure is required to replace the magnet. In addition to these inconveniences, there is removal and replacement of the magnet during daily use. The magnet is sized to be a small disc-shaped or small sphere-shaped device that is difficult for the surgeon to grasp and manipulate. In the prior art, the removable magnet is located in a silicone having an opening in the upper surface of the implanted coil, and magnet removal and replacement is accomplished with conventional forceps.
Disclosure of Invention
The technical problems solved by the invention are as follows: how to simplify the operation steps and shorten the operation time; the pain of the patient is reduced; how to design a proper tool for implanting and taking out the magnet in the artificial cochlea.
In order to solve the problems, the technical scheme of the invention is as follows: an artificial cochlea inner magnet tool comprises a push plate, a push rod, a sheath, a spring, a limit ring, a limit part, an outer sleeve, a handle, a thread part, a magnetic attraction part, a window, a contraction part, a push rod thread and a magnetic part thread, wherein,
one end of the push rod is connected with the push plate, the other end of the push rod is provided with the push rod thread, the push rod thread is matched with the magnetic part thread, and the push rod is connected with the magnetic part;
the push rod is sleeved with the spring, the spring is sleeved with the sheath and the outer sleeve, one end of the sheath is provided with a limiting part which is propped against a limiting ring arranged outside the outer sleeve, and the sheath is prevented from being separated from the spring when the spring rebounds;
the handle is arranged between the threaded part and the outer sleeve; one end of the necking part is sleeved outside the magnetic attraction part and the threaded part, the window is arranged on the necking part and is used for placing the magnet in the artificial cochlea, the other end of the necking part is provided with an elastic necking, and the necking diameter is matched with the placement opening of the magnet in the artificial cochlea implant.
Preferably, sleeve threads are arranged outside the outer sleeve, and the limiting ring is connected with the outer sleeve in an adjustable position through the sleeve threads.
Preferably, anti-skid patterns are arranged on the periphery of the limiting ring.
Preferably, the magnetic attraction part comprises a magnet push block, a first magnet cover plate and a first magnet, wherein the first magnet is arranged inside the magnet push block, the first magnet cover plate covers the first magnet and is flush with the surface of the magnet push block, and the magnetic attraction of the first magnet is smaller than that of the magnet in the artificial cochlea.
Preferably, the magnetic attraction part comprises a magnet attraction block, a second magnet cover plate and a second magnet, wherein the second magnet is arranged inside the magnet pushing block, the second magnet cover plate covers the first magnet and forms a groove with the magnet attraction block, the diameter of the groove is 1.1-1.4 times of the diameter of the magnet in the artificial cochlea, and the magnetic attraction force of the second magnet is at least 1.3 times of the magnetic attraction force of the magnet in the artificial cochlea.
Preferably, the wall of the outer sleeve is provided with a sleeve groove, and the limiting part moves in the sleeve groove when the push plate is pushed and pulled.
Preferably, the necking part comprises a plurality of necking spring plates, and the tail ends of the necking spring plates are curled and used for expanding silica gel of the inner magnet wrapped by the artificial cochlea implant body so as to expose the inner magnet; when the push rod pushes and pulls the magnetic attraction part, the magnetic attraction part moves in the necking spring piece.
The invention has the beneficial effects that: in the prior art, no good solution is provided for implanting and taking out the magnet in the artificial cochlea, and the implantation and taking out can only be performed with brute force, which can certainly lead to long operation time in the operation process and secondary injury. The invention combines the implantation and the taking-out of the magnet in the artificial cochlea, realizes multiple functions of one tool, simplifies operation steps, shortens operation time, reduces pain of patients, is simple to operate, and brings great convenience to operation.
Drawings
Fig. 1 is a cross-sectional view of an intra-cochlear implant magnet tool according to an embodiment of the present invention;
fig. 2 is a perspective view of a pusher plate and pusher bar of a cochlear implant magnet tool in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a magnet assembly of an intra-cochlear implant of an embodiment of the present invention;
fig. 4 is a cross-sectional view of a magnetic attraction part of a magnet tool in an artificial cochlea according to another embodiment of the present invention;
fig. 5 is a perspective view of an outer sleeve portion of an intra-cochlear implant magnet tool according to an embodiment of the present invention;
fig. 6 is a perspective view of a reduced portion of a cochlear implant magnet tool according to an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, an intra-cochlear implant magnet tool comprises a push plate 1, a push rod 2, a sheath 3, a spring 4, a limit ring 5, a limit part 6, an outer sleeve 7, a handle 9, a thread part 10, a magnetic attraction part, a window 12, a necking part 13, push rod threads 16 and magnetic part threads 17, wherein,
referring to fig. 2, one end of the push rod 2 is connected with the push plate 1, and may be welded, riveted or screwed; the other end of the push rod 2 is provided with a push rod thread 16, the push rod thread 16 is matched with a magnetic part thread 17, and the push rod 2 is connected with the magnetic part;
the push rod 2 is sleeved with the spring 4, the spring 4 is sleeved with the sheath 3 and the outer sleeve 7, one end of the sheath 3 is provided with a limiting part 6 which is propped against a limiting ring 5 arranged outside the outer sleeve 7, and the sheath 3 is prevented from being separated from the spring 4 when the spring 4 rebounds;
the handle 9 is arranged between the threaded portion 10 and the outer sleeve 7; one end of the shrinkage part 13 is sleeved outside the magnetic attraction part and the thread part 10, a window 12 is arranged on the shrinkage part and is used for placing the magnet in the artificial cochlea, the other end of the shrinkage part 13 is provided with an elastic shrinkage opening, and the diameter of the shrinkage opening is matched with the placement opening of the magnet in the artificial cochlea implant.
The outside of the outer sleeve 7 is provided with sleeve threads 8, and the limiting ring 5 is connected with the outer sleeve 7 in an adjustable position through the sleeve threads 8. The periphery of the limiting ring 5 is provided with anti-skid patterns.
Referring to fig. 3, the magnetic attraction portion in an embodiment of the present invention includes a magnet push block 11, a first magnet cover plate 14 and a first magnet 15, where the first magnet 15 is disposed inside the magnet push block 11, and the first magnet cover plate 14 covers the first magnet 15 and is flush with the surface of the magnet push block 11, and the magnetic attraction force of the first magnet 15 is smaller than that of the magnet in the cochlear implant.
When the inner magnet of the artificial cochlea is placed, the inner magnet is placed into the shrinkage cavity 13 through the window 12, the first magnet 15 attracts the inner magnet, the shrinkage cavity 13 is aligned with a silica gel round hole at the position of the inner magnet of the artificial cochlea implant, the push plate 1 is pushed by holding the handle 9, and the inner magnet is placed into the artificial cochlea implant by the magnetic attraction part.
Referring to fig. 4, the magnetic attraction part in another embodiment of the present invention includes a magnet attraction block 19, a second magnet cover plate 21 and a second magnet 22, the second magnet 22 is disposed inside the magnet push block 11, the second magnet cover plate 21 covers the first magnet 15 and forms a groove with the magnet attraction block 19, the diameter of the groove is 1.1-1.4 times of the diameter of the magnet in the artificial cochlea, and the magnetic attraction force of the second magnet 22 is at least 1.3 times of the magnetic attraction force of the magnet in the artificial cochlea.
When the magnet in the artificial cochlea is taken out, the necking part 13 is aligned with the silica gel round hole at the position of the magnet in the artificial cochlea implant body, the push plate 1 is pushed by holding the handle 9, the magnet is attracted by the magnet attraction part, the push plate 1 is relaxed, the spring 4 rebounds, the magnet attraction part drives the magnet to be pulled back, and the magnet is moved out of the groove.
Referring to fig. 5, in an embodiment of the present invention, a sleeve groove 24 is formed in the wall of the outer sleeve 7, and the limiting portion 6 moves in the sleeve groove 24 when the push plate 1 is pushed and pulled.
Referring to fig. 6, the necking part 13 includes a plurality of necking spring plates 27, and the tail ends of the necking spring plates 27 are curled to expand the silica gel holes of the inner magnet wrapped by the cochlear implant so as to expose the inner magnet; when the push rod 2 pushes and pulls the magnetic attraction part, the magnetic attraction part moves in the necking spring piece 27.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. An artificial cochlea inner magnet tool is characterized by comprising a push plate, a push rod, a sheath, a spring, a limiting ring, a limiting part, an outer sleeve, a handle, a thread part, a magnetic attraction part, a window, a contraction part, a push rod thread and a magnetic part thread, wherein,
one end of the push rod is connected with the push plate, the other end of the push rod is provided with the push rod thread, the push rod thread is matched with the magnetic part thread, and the push rod is connected with the magnetic part;
the push rod is sleeved with the spring, the spring is sleeved with the sheath and the outer sleeve, one end of the sheath is provided with a limiting part which is propped against a limiting ring arranged outside the outer sleeve, and the sheath is prevented from being separated from the spring when the spring rebounds;
the handle is arranged between the threaded part and the outer sleeve; one end of the necking part is sleeved outside the magnetic attraction part and the threaded part, the window is arranged on the necking part and is used for placing the magnet in the artificial cochlea, the other end of the necking part is provided with an elastic necking, and the necking diameter is matched with the placement opening of the magnet in the artificial cochlea implant;
the magnetic attraction part comprises a magnet push block, a first magnet cover plate and a first magnet, the first magnet is arranged inside the magnet push block, the first magnet cover plate covers the first magnet and is flush with the surface of the magnet push block, and the magnetic attraction of the first magnet is smaller than that of the magnet in the artificial cochlea;
the magnetic attraction part comprises a magnet attraction block, a second magnet cover plate and a second magnet, wherein the second magnet is arranged inside the magnet push block, the second magnet cover plate covers the first magnet and forms a groove with the magnet attraction block, the diameter of the groove is 1.1-1.4 times of the diameter of the magnet in the artificial cochlea, and the magnetic attraction force of the second magnet is at least 1.3 times of the magnetic attraction force of the magnet in the artificial cochlea.
2. The intra-cochlear implant magnet tool according to claim 1, wherein a sleeve thread is provided outside the outer sleeve, and the limit ring is adjustably connected with the outer sleeve through the sleeve thread.
3. The intra-cochlear implant tool of claim 1, wherein the limit ring is provided with anti-slip grooves on the outer periphery.
4. The artificial cochlea inner magnet tool according to claim 1, wherein a sleeve groove is formed in the wall of the outer sleeve, and the limiting part moves in the sleeve groove when the push plate is pushed and pulled.
5. The cochlear implant tool of claim 1, wherein the reduced portion comprises a plurality of reduced shrapnel, the end of which is curled for expanding the silicone of the cochlear implant around the inner magnet to expose the inner magnet; when the push rod pushes and pulls the magnetic attraction part, the magnetic attraction part moves in the necking spring piece.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810903015.7A CN108969194B (en) | 2018-08-09 | 2018-08-09 | Magnet tool in artificial cochlea |
| RU2021102060A RU2764836C1 (en) | 2018-08-09 | 2019-07-19 | Tool for installing and removing an internal magnet in a cochlear implant |
| PCT/CN2019/096647 WO2020029765A1 (en) | 2018-08-09 | 2019-07-19 | Tool for magnet in artificial cochlea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810903015.7A CN108969194B (en) | 2018-08-09 | 2018-08-09 | Magnet tool in artificial cochlea |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108969194A CN108969194A (en) | 2018-12-11 |
| CN108969194B true CN108969194B (en) | 2024-04-09 |
Family
ID=64555003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810903015.7A Active CN108969194B (en) | 2018-08-09 | 2018-08-09 | Magnet tool in artificial cochlea |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN108969194B (en) |
| RU (1) | RU2764836C1 (en) |
| WO (1) | WO2020029765A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969194B (en) * | 2018-08-09 | 2024-04-09 | 浙江诺尔康神经电子科技股份有限公司 | Magnet tool in artificial cochlea |
| CN114286262B (en) * | 2021-11-18 | 2024-04-12 | 贵州电网有限责任公司 | Magnetic sound signal acquisition cochlea |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862229A (en) * | 2010-06-13 | 2010-10-20 | 杭州诺尔康神经电子科技有限公司 | Artificial cochlea |
| CN206214572U (en) * | 2016-06-24 | 2017-06-06 | 沈阳弘鼎康医疗器械有限公司 | A kind of artificial cochlear implant |
| CN107308543A (en) * | 2017-07-03 | 2017-11-03 | 浙江诺尔康神经电子科技股份有限公司 | A kind of artificial cochlea's magnet and device |
| CN209137081U (en) * | 2018-08-09 | 2019-07-23 | 浙江诺尔康神经电子科技股份有限公司 | A kind of artificial cochlea's internal magnet tool |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2008222724B2 (en) * | 2007-03-07 | 2010-09-23 | Med-El Elektromedizinische Geraete Gmbh | Implantable device with removable magnet |
| CA2702352C (en) * | 2007-10-12 | 2015-06-02 | Med-El Elektromedizinische Geraete Gmbh | Implant magnet insertion and removal tools |
| EP2355889B1 (en) * | 2008-11-12 | 2013-12-18 | Advanced Bionics, LLC | Cochlear implant systems including magnetic flux redirection means |
| CN105188839B (en) * | 2013-03-13 | 2018-05-22 | 领先仿生公司 | The magnet installation system and method used for cochlear implant |
| EP2853287B1 (en) * | 2013-09-26 | 2017-10-25 | Oticon Medical A/S | Implantable device with removable magnet |
| EP3154630B1 (en) * | 2014-06-16 | 2020-12-30 | MED-EL Elektromedizinische Geräte GmbH | Implant magnet insertion and removal tools |
| CN204487448U (en) * | 2015-03-26 | 2015-07-22 | 重庆大学 | A kind of screwdriver of controllable magnetic |
| CN108969194B (en) * | 2018-08-09 | 2024-04-09 | 浙江诺尔康神经电子科技股份有限公司 | Magnet tool in artificial cochlea |
-
2018
- 2018-08-09 CN CN201810903015.7A patent/CN108969194B/en active Active
-
2019
- 2019-07-19 RU RU2021102060A patent/RU2764836C1/en active
- 2019-07-19 WO PCT/CN2019/096647 patent/WO2020029765A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862229A (en) * | 2010-06-13 | 2010-10-20 | 杭州诺尔康神经电子科技有限公司 | Artificial cochlea |
| CN206214572U (en) * | 2016-06-24 | 2017-06-06 | 沈阳弘鼎康医疗器械有限公司 | A kind of artificial cochlear implant |
| CN107308543A (en) * | 2017-07-03 | 2017-11-03 | 浙江诺尔康神经电子科技股份有限公司 | A kind of artificial cochlea's magnet and device |
| CN209137081U (en) * | 2018-08-09 | 2019-07-23 | 浙江诺尔康神经电子科技股份有限公司 | A kind of artificial cochlea's internal magnet tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020029765A1 (en) | 2020-02-13 |
| RU2764836C1 (en) | 2022-01-21 |
| CN108969194A (en) | 2018-12-11 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tan Zhiping Inventor after: Zhou Daomin Inventor after: Luo Nianming Inventor after: Qi Shuqi Inventor before: Tan Zhiping Inventor before: Zhou Daoming Inventor before: Luo Nianming Inventor before: Qi Shuqi |
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