CN115862996B - Medical device trigger - Google Patents
Medical device trigger Download PDFInfo
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- CN115862996B CN115862996B CN202310134203.9A CN202310134203A CN115862996B CN 115862996 B CN115862996 B CN 115862996B CN 202310134203 A CN202310134203 A CN 202310134203A CN 115862996 B CN115862996 B CN 115862996B
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- 230000000747 cardiac effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
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- 238000002513 implantation Methods 0.000 description 1
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- 239000007924 injection Substances 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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Abstract
The invention provides a medical equipment trigger, which comprises a magnetic field constraint space formed by a magnetic field constraint structure, wherein a magnet is arranged in the magnetic field constraint space, and the magnet is not contacted with the magnetic field constraint structure; the magnetic field constraint structure is made of magnetic conductive materials and comprises a first magnetic field constraint structure and a second magnetic field constraint structure, and the second magnetic field constraint structure is movably connected with the first magnetic field constraint structure; the second magnetic field constraint structure is used for opening the magnetic field constraint space so that the magnetic field intensity outside the magnetic field constraint space is larger than or equal to a magnetic field trigger threshold value of the medical trigger device within a specific distance. In the invention, the magnetic force of the magnet is restrained in the magnetic field restraining space, so that the leakage of the magnetic force to the outside of the medical equipment trigger can be reduced, the magnetic field intensity of the outside of the medical equipment trigger can not reach the threshold value for activating the medical equipment when a patient carries the medical equipment trigger, and the false triggering event of the medical equipment can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of implantable medical equipment, in particular to a medical equipment trigger.
Background
Implantable medical devices are typically provided with a magnet pattern, i.e. a specific function of the implantable medical device is activated by triggering of an external magnet to perform a corresponding diagnosis and treatment. Taking an implantable cardiac monitor (Insertable Cardiac Monitor, ICM) as an example, when a patient feels uncomfortable, the patient takes the magnet out to approach the implantation site, and when a magnetic sensor (such as a hall sensor) in the ICM senses that the magnetic field strength reaches a threshold value, the controller in the ICM is awakened to record and store electrocardiographic data in the ICM circulation memory, and the electrocardiographic data is stored in the permanent memory.
However, existing ICM magnet triggers are typically designed as bare magnets without a protective device, which are prone to false triggering events of medical devices when carried by a patient because the magnets are typically designed to be strong to maintain a magnetic field strength to ensure that they can wake up the ICM. Meanwhile, the bare magnet has the problem of unnecessary magnetic object adsorption during carrying, such as adsorption of magnetic permeability objects like keys and coins.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a medical equipment trigger.
To achieve the above and other objects, the present invention is achieved by comprising the following technical solutions: the invention provides a medical equipment trigger which is characterized by comprising a magnetic field constraint space formed by a magnetic field constraint structure, wherein a magnet is arranged in the magnetic field constraint space, and the magnet is not contacted with the magnetic field constraint structure; the magnetic field constraint structure is made of magnetic conductive materials and comprises a first magnetic field constraint structure and a second magnetic field constraint structure, and the second magnetic field constraint structure is movably connected with the first magnetic field constraint structure; the second magnetic field constraint structure is used for opening the magnetic field constraint space so that the magnetic field intensity outside the magnetic field constraint space is larger than or equal to a magnetic field trigger threshold value of the medical trigger device within a specific distance. In the invention, the magnetic force of the magnet is restrained in the magnetic field restraining space, so that the leakage of the magnetic force to the outside of the medical equipment trigger can be reduced, the magnetic field intensity outside the medical equipment trigger can not reach the threshold value for activating the medical equipment, and the false triggering event of the medical equipment can be effectively avoided; meanwhile, the magnet has magnetic attraction to the second magnetic field constraint structure, reset alignment after rotation of the second magnetic field constraint structure can be guaranteed, dislocation movement of the second magnetic field constraint structure is not easy to occur in the carrying process, and magnetic objects can be effectively prevented from being adsorbed during carrying.
In some embodiments, the first and second magnetic field containment structures are plate-like; the first magnetic field restraining structure and the magnet are arranged in the main shell, and the first magnetic field restraining structure is opposite to the first surface of the magnet; the second magnetic field restraining structure is arranged in a cover shell, and the cover shell is movably arranged on the main shell; the second magnetic field confinement structure is disposed directly opposite the second face of the magnet when the cover housing completely covers the main housing.
In this embodiment, the first magnetic field constraining structure and the second magnetic field constraining structure are disposed in the housing made of the non-magnetically conductive material, which can reduce the use of magnetically conductive material, reduce the overall mass of the medical device trigger, and reduce the manufacturing cost.
Further, the magnet is sleeved with a magnetic field restriction ring, and the magnetic field restriction ring is made of a magnetic conductive material. The magnetic field constraint ring can carry out magnetic field constraint on the outer peripheral surface of the magnet when the magnet is thicker, so that the magnetic field intensity outside the medical equipment trigger is further ensured to not reach the threshold value for activating the medical equipment.
Further, an isolating ring is sleeved between the magnet and the magnetic field constraint ring. The isolating ring is made of non-magnetic conductive materials, so that the magnet can be prevented from being contacted with the magnetic field constraint ring.
Further, the cross sections of the first magnetic field restraining piece and the second magnetic field restraining structure are U-shaped structures. The two-layer design may further improve the magnetic field confinement capability of the first magnetic field confinement structure and the second magnetic field confinement structure.
Further, chamfers are arranged on two sides of the bottoms of the first magnetic field restraining structure and the second magnetic field restraining structure. The chamfer may be designed such that the bottom profile of the first and second magnetic field containment structures is adapted to the heart profile of the medical device trigger.
Further, the main shell comprises a first accommodating shell, a first step hole and a second step hole are formed in the apex of the first accommodating shell, and the first step hole is communicated with the second step hole; the cover shell comprises a second accommodating shell, and a shaft sleeve is arranged at the apex of the second accommodating shell; the cover shell is rotationally connected with the main shell through a pivot structure, the pivot structure comprises a shaft and a locking screw, a cap part of the shaft is embedded in the shaft sleeve, and one end of the shaft with a hole sequentially penetrates through the first step hole and the second step hole and is connected with the locking screw in the second step hole. This design enables the cover housing to be slide opened and closed relative to the main housing.
Further, a first transverse plate and a first longitudinal plate are arranged in the first accommodating shell, and a first accommodating groove is formed by the first transverse plate and the first longitudinal plate; the second accommodating shell is internally provided with a second transverse plate and a second longitudinal plate, and the second transverse plate and the second longitudinal plate form a second accommodating groove. The design is beneficial to fixedly accommodating the first magnetic field restraining structure and the second magnetic field restraining structure.
Further, the main housing further comprises a first ornamental plate, and the first ornamental plate is mounted on the first accommodating housing through a first step groove formed on the first transverse plate and the upper surface of the first accommodating housing; the cover housing further includes a second trim panel mounted on the second housing case through a second stepped groove formed by the second lateral plate and a lower surface of the second housing case. The design of the ornamental plate is beneficial to dust prevention and beautiful appearance.
In some embodiments, the first magnetic field containment structure is an open hollow solid, the magnet is disposed within the first magnetic field containment structure, and a non-magnetically permeable material is filled between the magnet and the first magnetic field containment structure; the second magnetic field restraining structure is covered at the opening and is movably connected with the first magnetic field restraining structure.
In this embodiment, the design without a non-magnetically permeable housing may simplify the overall structure of the medical device trigger.
Further, the second magnetic field restraint structure opens the magnetic field restraint space in a manner that the second magnetic field restraint structure slides, turns over or separates relative to the first magnetic field restraint structure.
The invention has the beneficial effects that:
1. the first magnetic field restraining structure and the second magnetic field restraining structure can realize magnetic field restraint on two bottom surfaces of the magnet due to magnetism conductivity, when the first magnetic field restraining structure and the second magnetic field restraining structure are closed, or when the main shell with the first magnetic field restraining structure and the cover shell with the second magnetic field restraining structure are closed, the magnetic force of the two bottom surfaces of the magnet is restrained in the first magnetic field restraining structure and the second magnetic field restraining structure, so that the magnetic force is reduced from leaking to the outside of the medical equipment trigger, the magnetic field intensity outside the medical equipment trigger can not reach the threshold value for activating the medical equipment, and false triggering events of the medical equipment can be effectively avoided;
2. the first magnetic field restraining structure and the second magnetic field restraining structure can form magnetic attraction force with the magnet due to magnetism conductivity, so that automatic alignment of the second magnetic field restraining structure or the cover shell with the second magnetic field restraining structure during resetting can be realized, and meanwhile, when the first magnetic field restraining structure and the second magnetic field restraining structure are closed, or the main shell with the first magnetic field restraining structure and the cover shell with the second magnetic field restraining structure are closed, dislocation movement of the second magnetic field restraining structure or the cover shell with the second magnetic field restraining structure is not easy to occur in the carrying process, and the occurrence of false triggering events of medical equipment and unnecessary magnetic object adsorption problems during carrying can be effectively avoided.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 shows an exploded view of the main housing and the components disposed therein in a first embodiment of the present invention.
Fig. 3A is a schematic perspective view of a first housing according to a first embodiment of the invention.
Fig. 3B is a schematic cross-sectional view of the first housing according to the first embodiment of the invention.
Fig. 4 shows an exploded view of the cap housing and the components disposed therein according to the first embodiment of the present invention.
Fig. 5A is a schematic perspective view of a second housing according to the first embodiment of the invention.
Fig. 5B is a schematic cross-sectional view of the second housing according to the first embodiment of the invention.
Fig. 6 shows an exploded view of a hub structure according to a first embodiment of the present invention.
Fig. 7A is a schematic view showing a state when the first embodiment of the present invention is pushed open.
Fig. 7B is a schematic view showing a state when the medical device is triggered according to the first embodiment of the present invention.
Fig. 8 is a schematic perspective view of a second embodiment of the present invention.
Fig. 9 is a schematic perspective view of a third embodiment of the present invention.
Detailed Description
Please refer to fig. 1 to 9. Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or scope thereof.
In the present invention, for a clearer description, the following description is made: the observer views fig. 1, the observer's left side is set up, the observer's right side is set down, and the terms "upper" and "lower" and the like herein indicate orientations or positional relationships based on the orientations or positional relationships set forth in fig. 1, only for convenience in describing the present invention clearly, and do not indicate or imply that the structures or components referred to must have a specific orientation, be configured in a specific orientation, and therefore should not be construed as limiting the present invention. The reference numerals used for the components in the present specification, such as "first", "second", etc., are used for distinguishing the described objects, and do not have any sequential or technical meaning. The term "coupled", where the context clearly indicates otherwise, includes both direct and indirect coupling.
The invention provides a medical equipment trigger, wherein a magnet of the medical equipment trigger is arranged in a magnetic field constraint space, the magnetic field constraint space is surrounded by a magnetic field constraint structure made of a magnetic conductive material, so that the magnetic field of the magnet can be effectively constrained, the magnetic field intensity outside the magnetic field constraint space is smaller than a threshold value for triggering medical equipment in a non-use state, and the false triggering event of the medical equipment when a patient carries the naked magnet can be effectively avoided. When the medical equipment is required to be used, a part of the magnetic field constraint structure can be opened, so that the magnetic field constraint space is opened, and the magnetic field of the constrained magnet is released, so that the magnetic field intensity outside the magnetic field constraint space is larger than or equal to the magnetic field triggering threshold of the medical equipment within a specific distance, and the triggering of the medical equipment is realized.
1-7B illustrate a first embodiment of the present invention in which a medical device trigger 1 may include a housing 100, a magnetic field confinement space disposed within the housing 100, and a magnet 200 disposed within the magnetic field confinement space.
As shown in fig. 1, the housing 100 may be made of a non-magnetic conductive material, such as non-magnetic stainless steel, a non-metallic material, etc., the housing 100 may include a main housing 110 and a cover housing 120, the cover housing 120 is rotatably mounted on the main housing 110, and the cover housing 120 may entirely cover the surface of the main housing 110. Specifically, the overall structure of the medical device trigger 1 may be heart-shaped, and the thickness of the cover housing 120 may be smaller than that of the main housing 110.
As shown in fig. 2, the magnet 200 may have a columnar shape, for example, a columnar shape. The magnet 200 may be disposed within the main housing 110. The main housing 110 may have a first magnetic field confinement structure 310 disposed therein, and the first magnetic field confinement structure 310 may be made of a magnetically permeable material, such as silicon steel, iron, nickel, or the like. In particular, the first magnetic field confinement structure 310 may be a plate-like structure, so as to ensure that the first magnetic field confinement structure 310 is disposed opposite to the first face 210 of the magnet 200 and is not in contact with the magnet 200, for confining the magnetic field at the first face 210 into the first magnetic field confinement structure 310, such that the magnetic field strength of the first face 210 falls below a threshold value for triggering a medical device.
As shown in fig. 4, a second magnetic field confinement structure 320 may be disposed in the cover housing 120, and the second magnetic field confinement structure 320 may be made of a magnetically conductive material, such as silicon steel, iron, nickel, and the like. In particular, the second magnetic field confinement structure 320 may be a plate-like structure. Referring to fig. 1 and 2, when the cover housing 120 completely covers the main housing 110, the second magnetic field constraining structure 320 is disposed opposite to the second face 220 of the magnet 200, so as to constrain the magnetic field at the second face 220 into the second magnetic field constraining structure 320, so that the magnetic field strength of the second face 220 falls below a threshold value for triggering a medical device.
For example, when the thickness of the magnet 200 is small, the outer circumferential magnetic field of the magnet 200 does not always reach the threshold value for triggering the medical device 2. Referring to fig. 1, 2 and 4, when the cover housing 120 completely covers the main housing 110, the first and second magnetic field constraining structures 310 and 320 form a magnetic field constraining space outside the magnet 200. At this time, the magnetic field intensity outside the magnetic field confinement space is smaller than the magnetic field triggering threshold of the medical device 2 (see fig. 7B), which is insufficient to trigger the medical device 2.
Referring to fig. 2, 4, 7A and 7B, when the cover housing 120 is rotated by the patient to be opened, the second magnetic field restraining structure 320 is offset from the second surface 220 by a certain angle, for example, 60 ° to 120 °, so that the magnetic field restraining space is opened, and the magnetic field of the restrained second surface 220 is released. At this time, the magnetic field strength outside the magnetic field confinement space is greater than or equal to the magnetic field triggering threshold of the medical device 2 within the specific distance D, sufficient to achieve triggering of the medical device 2. Specifically, the specific distance D may be 5 mm to 500 mm.
The first magnetic field restraining structure 310 and the second magnetic field restraining structure 320 designed by the invention have magnetic permeability, on one hand, the magnetic force restraint of the magnet 200 can be realized, namely, when the cover shell 120 and the main shell 110 are closed, the two bottom edges of the magnet 200 are respectively subjected to magnetic field restraint, and the magnetic force of the magnet 200 is restrained in the first magnetic field restraining structure 310 and the second magnetic field restraining structure 320, so that the magnetic force leakage to the outside of the shell 100 is reduced, and the magnetic field intensity outside the shell 100 can not reach the threshold value for activating medical equipment; on the other hand, the magnet 200 may generate a magnetic attraction force to the first magnetic field restraining structure 310 and the second magnetic field restraining structure 320, when the offset angle between the cover housing 120 and the main housing 110 reaches a specific value, the cover housing 120 may be automatically aligned to the main housing 110, and the dislocation movement of the cover housing 120 is not easy to occur in the carrying process, so as to effectively avoid the occurrence of a false triggering event of medical equipment and the unnecessary magnetic object adsorption problem during carrying.
Referring back to fig. 2, the main housing 110 may include a first housing shell 111 having a heart shape and a first ornamental plate 112 having a notch at a apex, wherein the first housing shell 111 is configured to house the first magnetic field restraint structure 310 and the magnet 200, the first magnetic field restraint structure 310 is located at a bottommost portion of the first housing shell 111, and the magnet 200 is located above the first magnetic field restraint structure 310 and is not in contact with the first magnetic field restraint structure 310. The first decorative board 112 may cover the upper surface of the first housing case 111, and may have effects of dust protection, aesthetic appearance, and the like.
For example, when the thickness of the magnet 200 is large, the magnetic field of the outer circumferential surface of the magnet 200 may reach the threshold value for triggering the medical device 2, and at this time, a magnetic field confinement ring 500 may be sleeved on the outer side of the magnet 200, where the magnetic field confinement ring 500 is made of a magnetically conductive material, such as silicon steel, iron, nickel, etc., and is used to confine the magnetic field of the outer circumferential surface of the magnet 200 to the magnetic field confinement ring 500, so that the magnetic field strength of the outer circumferential surface of the magnet 200 falls below the threshold value for triggering the medical device. At this time, the magnetic field confinement space is formed by the first magnetic field confinement structure 310, the second magnetic field confinement structure 320, and the magnetic field confinement ring 500 together. Further, an isolating ring 400 may be sleeved between the magnet 200 and the magnetic field constraining ring 500, where the isolating ring 400 is made of a non-magnetic material and is used for isolating the magnet 200 and the magnetic field constraining ring 500 to weaken the attractive force therebetween.
Specifically, the first magnetic field confinement structure 310 may be folded into two layers, and the cross section of the first magnetic field confinement structure is a U-shaped structure, so as to further improve the magnetic field confinement effect. The projection of the first magnetic field constraint structure 310 may be rectangular, and two sides of the bottom of the first magnetic field constraint structure 310 may be provided with chamfer 311, and the chamfer 311 may enable the bottom shape of the first magnetic field constraint structure 310 to be adapted to the heart-shaped shape of the first housing shell 111.
Referring to fig. 2, 3A and 3B, a first transverse plate 113 and a first longitudinal plate 114 may be disposed inside the first housing 111, and the first transverse plate 113 and the first longitudinal plate 114 may form a first housing groove 115, and the first housing groove 115 is used for limiting and housing the first magnetic field restraint structure 310 and the magnet 200. The first receiving groove 115 is matched with the shape of the first magnetic field confinement structure 310. Further, the first receiving groove 115 may further be provided with an annular supporting structure 116, so that the first magnetic field restraining structure 310 may be more firmly fixed in the first receiving groove 115. Further, the apex of the first housing case 111 is provided with a first stepped hole 117a and a second stepped hole 117b communicating with each other. The first and second stepped holes 117a and 117b are used to mount a pivot structure. Reinforcing ribs may be provided between the first and second stepped holes 117a and 117b and the first transverse plate 113 and the first receiving case 111 to reinforce structural stability of the first and second stepped holes 117a and 117b.
Further, as shown in fig. 3B, a height difference exists between the first transverse plates 113 and the upper surface of the first receiving case 111, so that a first stepped groove 118 is formed between the two first transverse plates 113 and the upper surface of the first receiving case 111, and the first decorative plate 112 may be mounted on the upper surface of the first receiving case 111 through the first stepped groove 118 and may be clamped with the first receiving case 111.
As shown in fig. 4, the cover housing 120 may include a second receiving case 121 and a second decorative plate 122 having a heart shape. The first housing 111 is configured to house the second magnetic field restraint structure 320, and a tip of the second housing 121 is provided with a shaft 131 for rotatably connecting the main housing 110. Further, the second magnetic field confinement structure 320 may be folded into two layers, and the cross section of the second magnetic field confinement structure is a U-shaped structure, so as to further improve the magnetic field confinement effect. The projection of the second magnetic field constraint structure 320 may be rectangular, further, two sides of the bottom of the second magnetic field constraint structure 320 may be provided with chamfers 321, and the chamfers 321 may enable the bottom shape of the second magnetic field constraint structure 320 to be adapted to the heart-shaped shape of the second housing shell 121. The core tip of the second decorative plate 122 is provided with a notch, and the second decorative plate 122 may cover the lower surface of the second housing 121, so as to achieve the effects of dust protection, aesthetics, etc. Further, an annular supporting structure 122a may be further disposed on the second decoration plate 122, for pressing the second magnetic field confinement structure 320 into the second housing case 121.
As shown in fig. 5A, the second housing case 121 may be provided at an inner portion thereof with a second transverse plate 123 and a second longitudinal plate 124, and the second transverse plate 123 and the second longitudinal plate 124 may form a second housing groove 125, and the second housing groove 125 is used for mounting the second magnetic field confinement structure 320. Referring to fig. 4, the second receiving groove 125 may be matched with the shape of the second magnetic field confinement structure 320. Further, a tip portion of the second housing 121 may be provided with a boss 126 for fixing the shaft 131. Reinforcing ribs can be arranged between the shaft sleeve 126 and the second transverse plate 123 and the second accommodating case 121, so as to strengthen the structural stability of the shaft sleeve 126.
As shown in fig. 5B, a height difference exists between the second transverse plate 123 and the lower surface of the second receiving case 121, so that a second stepped groove 127 is formed between the two second transverse plates 123 and the lower surface of the second receiving case 121, and the second decorative plate 122 may be mounted on the lower surface of the second receiving case 121 through the second stepped groove 127 and may be clamped with the second receiving case 121.
As shown in fig. 5B, a cap 131a may be disposed at one end of the shaft 131, the cap 131a may be embedded in a apex of the second housing 121, and a hole 131B may be formed at the other end of the shaft 131, and the hole 131B may be used to connect with a pivot structural member disposed on the main housing 110. The shaft 131 may have a larger shaft diameter near the end of the cap 131a than the end near the hole 131b, that is, the shaft 131 may further have a step 131c formed thereon, where the step 131c is configured to abut against the first step hole 117 a.
Further, the shaft 131 may be injection molded together with the second housing case 121.
As shown in fig. 6, the apex of the cover housing 120 may be rotatably coupled to the apex of the main housing 110 by a pivot structure. In particular, the pivot structure may include a shaft 131, a first bearing 132, a second bearing 133, a locking screw 134, and a locking nut 135. Referring to fig. 3B and 5B, an end of the shaft 131 having the hole 131B may sequentially pass through the first stepped hole 117a having the first bearing 132 and the second stepped hole 117B having the second bearing 133, and be connected to the locking screw 134 through the hole 131B; the lock nut 135 is sleeved outside the lock screw 134 and is clamped in the second stepped hole 117b. The pivot structure may enable rotation of the cover housing 120 relative to the main housing 110.
Further, although the opening of the cover housing 120 in the present embodiment is a slide type, this is not essential, and the opening of the cover housing 120 may be a flip type as shown in fig. 8, and even the cover housing 120 may be completely separated from the main housing 110.
As shown in fig. 8 and 9, which illustrate a second embodiment and a third embodiment of the present invention, respectively, in which the magnetic field confinement structure of the medical device trigger 1 is an outer housing of the medical device trigger 1, the magnet 200 is disposed in a magnetic field confinement space 300 formed by the magnetic field confinement structure, and the magnet 200 is not in contact with the magnetic field confinement structure. In particular, the magnetic field confinement structure is made of magnetically permeable material, such as silicon steel, iron, nickel, etc. The magnetic field confinement structure may include a first magnetic field confinement structure 310 and a second magnetic field confinement structure 320, the first magnetic field confinement structure 310 being an open hollow solid, the magnet 200 being disposed within the first magnetic field confinement structure 310, and an upper surface of the magnet 200 may be lower than an upper surface of the opening; a non-magnetically permeable material may be filled between the magnet 200 and the first magnetic field containment structure 310; the second magnetic field confinement structure 320 may be a solid structure, and is covered at the opening and movably connected with the first magnetic field confinement structure 310.
When the second magnetic field confining structure 320 completely covers the opening, the first magnetic field confining structure 310 and the second magnetic field confining structure 320 together form a closed magnetic field confining space 300; when the second magnetic field confinement structure 320 is rotated open, the magnetic field confinement space 300 is opened, and the magnetic field strength outside the magnetic field confinement space 300 may be greater than or equal to the magnetic field triggering threshold of the medical device 2 within a certain distance D.
Further, although the second magnetic field constraining structure 320 is shown as being turned over, this is not a requirement, and the second magnetic field constraining structure 320 may be turned over in a sliding manner as shown in fig. 7A, or may be completely separated from the first magnetic field constraining structure 310.
Specifically, in order to uniformly confine the peripheral magnetic field of the magnet 200, it is generally designed such that the intervals between the magnet 200 and the respective faces of the magnetic field confinement structure are equal everywhere. For example, as shown in fig. 8, when the magnet 200 is a cylinder, the first magnetic field confinement structure 310 may be an open hollow sphere, and the second magnetic field confinement structure 320 may form a complete sphere with the first magnetic field confinement structure 310. For example, as shown in fig. 9, when the magnet 200 is a rectangular parallelepiped, the first magnetic field confinement structure 310 may be an open hollow rectangular parallelepiped, and the second magnetic field confinement structure 320 may form a larger rectangular parallelepiped with the first magnetic field confinement structure 310. It will be appreciated that it is not necessary that the spacing between the faces of the magnet 200 and the magnetic field containment structure be equal everywhere, and thus in other embodiments, when the magnet 200 is a cylinder, the first magnetic field containment structure 310 and the second magnetic field containment structure 320 may also be rectangular or other shapes as desired by the design; when the magnet 200 is a rectangular parallelepiped, the first and second magnetic field confinement structures 310, 320 may also be spheres or other shapes as desired by the design. In addition, the magnet 200 may have other shapes, and the first magnetic field confinement structure 310 and the second magnetic field confinement structure 320 may be corresponding mating structures, or may have any shape required by design.
In conclusion, the medical equipment trigger 1 provided by the invention has the advantages of small and exquisite whole appearance, and quick and convenient use. When needed, the second magnetic field restraint structure 320 or the cover housing 120 with the second magnetic field restraint structure 320 can be opened with only one hand, so that the magnetic field restraint space 300 is opened to release the magnetic field of the restrained magnet 200, so that the magnetic field intensity outside the magnetic field restraint space 300 can be greater than or equal to the magnetic field triggering threshold of the medical device 2 within a specific distance D; when the use is finished, the second magnetic field restraint structure 320 or the cover housing 120 with the second magnetic field restraint structure 320 is reset by loosening the hand or pushing the hand, and the second magnetic field restraint structure 320 or the cover housing 120 with the second magnetic field restraint structure 320 can be automatically aligned with the first magnetic field restraint structure 310 or the main housing 110 with the first magnetic field restraint structure 310 under the action of the magnetic attraction of the magnet 200, so that the magnetic field intensity outside the magnetic field restraint space 300 can be smaller than the magnetic field triggering threshold of the medical device 2.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value. The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. A medical device trigger, comprising
The magnetic field restraining structure is arranged in the magnetic field restraining space, and the magnetic body is not contacted with the magnetic field restraining structure;
the magnetic field constraint structure is made of magnetic conductive materials and comprises a first magnetic field constraint structure and a second magnetic field constraint structure, and the second magnetic field constraint structure is movably connected with the first magnetic field constraint structure; the second magnetic field constraint structure is used for opening the magnetic field constraint space so that the magnetic field intensity outside the magnetic field constraint space is larger than or equal to a magnetic field trigger threshold value of the medical trigger equipment within a specific distance;
the first magnetic field restraining structure and the magnet are arranged in the main shell, and the first magnetic field restraining structure is opposite to the first surface of the magnet; the second magnetic field restraining structure is arranged in a cover shell, and the cover shell is movably arranged on the main shell; the second magnetic field confinement structure is disposed directly opposite the second face of the magnet when the cover housing completely covers the main housing.
2. The medical device trigger of claim 1, wherein the first and second magnetic field containment structures are plate-shaped.
3. The medical device trigger of claim 2, wherein the magnet housing is provided with a magnetic field confinement ring made of magnetically permeable material.
4. The medical device trigger of claim 3, wherein a spacer ring is sleeved between the magnet and the magnetic field confinement ring.
5. The medical device trigger of claim 4, wherein the first magnetic field containment structure and the second magnetic field containment structure have a U-shaped cross-section.
6. The medical device trigger of claim 2, wherein the main housing comprises a first housing shell, a apex portion of the first housing shell being provided with a first stepped bore and a second stepped bore, the first stepped bore in communication with the second stepped bore; the cover shell comprises a second accommodating shell, and a shaft sleeve is arranged at the apex of the second accommodating shell; the cover shell is rotationally connected with the main shell through a pivot structure, the pivot structure comprises a shaft and a locking screw, a cap part of the shaft is embedded in the shaft sleeve, and one end of the shaft with a hole sequentially penetrates through the first step hole and the second step hole and is connected with the locking screw in the second step hole.
7. The medical device trigger of claim 6, wherein the interior of the first housing is provided with a first transverse plate and a first longitudinal plate, the first transverse plate and the first longitudinal plate forming a first housing slot; the second accommodating shell is internally provided with a second transverse plate and a second longitudinal plate, and the second transverse plate and the second longitudinal plate form a second accommodating groove.
8. The medical device trigger of claim 7, wherein the main housing further comprises a first trim panel mounted to the first housing through a first stepped slot formed by the first transverse panel and an upper surface of the first housing; the cover housing further includes a second trim panel mounted on the second housing case through a second stepped groove formed by the second lateral plate and a lower surface of the second housing case.
9. The medical device trigger of claim 1, wherein the second magnetic field containment structure opens the magnetic field containment space in a manner that slides, flips, or detaches relative to the first magnetic field containment structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310134203.9A CN115862996B (en) | 2023-02-20 | 2023-02-20 | Medical device trigger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310134203.9A CN115862996B (en) | 2023-02-20 | 2023-02-20 | Medical device trigger |
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| Publication Number | Publication Date |
|---|---|
| CN115862996A CN115862996A (en) | 2023-03-28 |
| CN115862996B true CN115862996B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310134203.9A Active CN115862996B (en) | 2023-02-20 | 2023-02-20 | Medical device trigger |
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| Country | Link |
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| CN (1) | CN115862996B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1568527A (en) * | 2001-08-24 | 2005-01-19 | 澳大利亚儿童玩具控股有限公司 | Switchable magnetic device |
| CN103988267A (en) * | 2011-12-07 | 2014-08-13 | 创新工程解决方案公司 | Rotary switchable multi-core element permanent magnet-based apparatus |
| CN110237423A (en) * | 2019-05-28 | 2019-09-17 | 北京品驰医疗设备有限公司 | Homing device and Implanted medical system |
| CN115363532A (en) * | 2022-08-22 | 2022-11-22 | 苏州无双医疗设备有限公司 | Implantable medical device and system and method for triggering storage thereof |
-
2023
- 2023-02-20 CN CN202310134203.9A patent/CN115862996B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1568527A (en) * | 2001-08-24 | 2005-01-19 | 澳大利亚儿童玩具控股有限公司 | Switchable magnetic device |
| CN103988267A (en) * | 2011-12-07 | 2014-08-13 | 创新工程解决方案公司 | Rotary switchable multi-core element permanent magnet-based apparatus |
| CN110237423A (en) * | 2019-05-28 | 2019-09-17 | 北京品驰医疗设备有限公司 | Homing device and Implanted medical system |
| CN115363532A (en) * | 2022-08-22 | 2022-11-22 | 苏州无双医疗设备有限公司 | Implantable medical device and system and method for triggering storage thereof |
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| Publication number | Publication date |
|---|---|
| CN115862996A (en) | 2023-03-28 |
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