CN100492813C - Electromagnetic energy wireless transmitter for human-body insertion motion device - Google Patents
Electromagnetic energy wireless transmitter for human-body insertion motion device Download PDFInfo
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- CN100492813C CN100492813C CNB2007100419814A CN200710041981A CN100492813C CN 100492813 C CN100492813 C CN 100492813C CN B2007100419814 A CNB2007100419814 A CN B2007100419814A CN 200710041981 A CN200710041981 A CN 200710041981A CN 100492813 C CN100492813 C CN 100492813C
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Abstract
The invention comprises an external part of human body composed of transmitting coil and a transmitting resonant circuit, an internal part of human body composed of a receiving coil, a floating type coil supporter and a rectification filter circuit. The weight balancing is made for the receiving coil in order to make its gravity center located under the geographical center and above the axial line; the floating type coil has three rings which are inner, middle and outer rings; between two rings there is a inter-ring supporter; in the inter-ring supporter, the support pin is closely inserted into the support pin socket which is fixed on one of rings and protected by an insulated sleeve; the support column is secured on a neighboring ring and protected by an insulted sleeve; the support pin and the support column make point contact. The lead wire of the receiving coil is led out through the support pin, support pin socket and the support column; under force of the off-center gravity, the receiving coil self-adaptively keep a pose in order to mostly receive the magnetic flux from the external transmitting coil.
Description
Technical field
The present invention relates to a kind of electromagnetic energy radio transmitting device, relate in particular to a kind of towards human body insertion type motion device based on electromagnetic field couples away from wireless energy transform device, belong to mechanical, electrical technology and clinical medicine domain.
Background technology
Human body insertion type medical device, comprise long-term built-in type device, as artificial heart, artificial anus, also comprise process type device a middle or short term, as miniature electronic capsule endoscopic, capsule-type gastroenteritic power checkout gear, robotic endoscope etc., be the general level of the health that improves people, prevent disease etc. and brought into play very important effect.
At present, the energy supply of these devices is divided into two kinds of cable energy supply and battery-powered.The former is because cable to the obstruction of device motion, has limited the flexibility and the applicability of access device; The latter, owing to there are not the needs that wound gets involved, can provide the space that is used for installing battery very narrow and small, so the battery-powered capacity is very limited, directly influenced the operating time of access device, for the needs sports type apparatus of multipotency more, its capacity is nowhere near, and these have brought very large difficulty all for the clinical practice of intervention apparatus.Therefore, wireless sustainably access device to be carried out the device of energy supply very urgent and necessary in research.
On clinical medicine, the energy transmission technology comparative maturity of microwave spectrum, and should be in industrial occasions, but since human body to the absorption of certain electric magnet rate, this technology is for human body and inapplicable.Use electromagnetic field couples or photoelectricity coupling principle than low-frequency range to carry out wireless energy supply at present mostly, concentrate on skin power transfer aspect, the energy launching site arrives receiving device through the skin superficial layer.Electromagnetism through the skin energy transmission system (Transcutaneous Energy Transmission System, TETS) in, receiving coil is embedded under the skin, two coil-spans are from generally being no more than 2cm, the size difference of coil is little, degree of coupling is higher.Optically coupled system is embedded in the skin shallow-layer with the luminous energy gathering element, and when using the irradiate light of special frequency channel, inner implant devices produces electric energy because of photoelectric action, externally energy supply after collecting.More than two kinds of systems be difficult to carry out the energy supply for buried device in body cavities or motion therein.And, the short transverse sensitiveness of power transfer makes these two kinds of systems can only apply to the energy supply of the static access device of relative human body, and for insertion type sports type device, robotic endoscope system for example, this energy method of supplying just can't have been used.The Korea S scholar has proposed a kind of based on the electromagnetic coupled principle, and is applied to power supply device (Proceeding of 2005 IEEE﹠amp that human body is got involved the motion device; EMBS, pp809-813).Two receiving coil angle in twos is 90 degree, and experiment test shows that coupling coefficient is lower, and the energy that receives is very limited.Consider the size of coil itself, practical three-dimensional orthogonal coil winding is difficulty very.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of electromagnetic energy radio transmitting device towards human body insertion type motion device is provided, improve the electromagnetic coupled coefficient, improve efficiency of transmission, the energy supply of the no cable that can continue the intervention campaign device of human body depths.
In order to achieve the above object, the present invention considers that transmitting coil and receiving coil are when parallel axes, higher electromagnetic coupled coefficient will be obtained, a kind of wireless energy transform device based on the electromagnetic coupled principle has been proposed, comprise by transmitting coil, the outer body that constitutes of emission resonant circuit part in the body that constitutes by receiving coil, floating type coil support frame and current rectifying and wave filtering circuit.Receiving coil is provided with counterweight and makes its center of gravity be positioned under the geometric center and be positioned on the axis, that floating type coil support frame has is interior, in, outer three rings, between two rings by the interannular support and connection.During interannular supports, support pin and closely insert the support needle stand, be fixed under the protection of insulating sleeve on the ring, support column is being fixed under the protection of insulating sleeve on the adjacent ring, supports pin and contacts with the support pin deck.The lead-in wire of receiving coil is drawn by supporting pin, support needle stand and support column.Receiving coil adaptively remains on a kind of attitude under the effect of eccentric gravity, thus can be maximum receive magnetic flux from external transmitting coil, thereby improved coupling coefficient.
Electromagnetic energy radio transmitting device concrete structure towards human body insertion type motion device of the present invention comprises the outer body by transmitting coil, emission resonant circuit constituent apparatus, part in the body that constitutes by receiving coil, current rectifying and wave filtering circuit, the receiving coil of part places in the floating type coil support frame in the body, and the central axis of receiving coil is parallel to the central axis of transmitting coil.Floating type coil support frame is made of outer shroud, middle ring, interior ring, and receiving coil is provided with center of gravity that counterweight makes coil and is positioned under the geometric center and is positioned on the axis.Inner loop tight buffered is outside receiving coil, in between ring and the middle ring, between middle ring and the outer shroud respectively separately the interannular by two symmetrical distributions support and realize that some contact, between encircling in two between the line of interannular support and two the middle outer shrouds line of interannular support vertical mutually.Be symmetrical arranged ring lead-in wire in two sections at the inwall of middle ring, an end of middle ring lead-in wire with in the interannular of ring support and link to each other, the other end of middle ring lead-in wire links to each other with the interannular support of middle outer shroud.Two lead-out wires of receiving coil from interior ring respectively the interannular by ring in two support and guide to middle ring, guide to the interannular support of two middle outer shrouds more respectively along ring in two sections, guide to outer shroud by the interannular support of two middle outer shrouds then, draw from outer shroud again, link current rectifying and wave filtering circuit.
Among the present invention, between the ring and in interannular between the outer shroud support and have identical architectural feature.Described interannular supports and comprises support needle stand, support pin and support column, supporting needle stand is installed in the insulating sleeve of a ring, support column is installed in the insulating sleeve of adjacent ring, support pin and be fixed in the center of supporting needle stand, the needle point that supports pin stretches into the conical socket that the support column front end face opens and withstands support column.Support on needle stand and the support column and all have V-shaped valley, the leading-in end of receiving coil lead-out wire is in the V-shaped valley that supports needle stand, in the V-shaped valley of the exit of receiving coil lead-out wire on the support column.
Receiving coil among the present invention is fixed in the interior ring of floating type coil support frame and interior ring constitutes an integral body.Interior ring all supports by interannular with outer shroud with middle ring, middle ring and realizes that point contacts, and frictional force is very little, and still contact is good.Interior ring rotate freely continuously with the axis that receiving coil can support around interannular in middle ring, and the axis that middle ring can support around interannular in outer shroud rotate freely continuously.
Under natural situation, the axis of receiving coil is always perpendicular to horizontal plane, and this attitude is a kind of stable balance.When the receiving coil attitude changed, its deviation of gravity center axis made receiving coil rotate around the interannular axis of support of middle ring or outer shroud because the effect of counterweight can produce moment, is returned to poised state.No matter the coil relocation mechanism is at any pose, total energy guarantees the axis normal of receiving coil in horizontal plane, thus can be maximum receive magnetic flux from external transmitting coil, thereby improved coupling coefficient.
The present invention utilizes support pin and support column to draw the lead-in wire of receiving coil respectively in interannular supports, and has avoided the issuable wrapping phenomena of lead-out wires of coil.Adopt metal material to guarantee the rigidity of each ring, adopt insulating sleeve to carry out the good insulation performance protection to supporting needle stand and support column simultaneously.
The present invention has overcome shortcomings such as existing electromagnetic coupled energy transmission efficiency is little, energy supply finite capacity, the viewpoint that mismatches from the space that reduces transmitting coil and receiving coil, for attitude and position all at random insertion type motion medicine equipment a kind of energy supply device of lasting no cable is provided.
Description of drawings
Fig. 1 is the general structure schematic diagram of electromagnetic energy radio transmitting device of the present invention.
Among Fig. 1,1 is transmitting coil, and 2 is floating type coil support frame, and 3 is receiving coil, and 4 is the human body environment, and 5 is current rectifying and wave filtering circuit, and 6 are the emission resonant circuit.
Fig. 2 is the structural representation of floating type coil support frame.
Among Fig. 2, (a) be the end view of floating type coil support frame, wherein, 7 is outer shroud, and 8 is middle ring, and 9 is interior ring, and 10 is counterweight, and 11 is magnetic core, and 12 is winding; (b) be the vertical view of floating type coil support frame, wherein, 13 are the interannular support.
Fig. 3 is the positional structure schematic diagram of coil two ends lead-out wire.
Among Fig. 3,14 is middle ring lead-in wire.
Fig. 4 is the interannular supporting construction schematic diagram between middle ring and the outer shroud.
Among Fig. 4,15 is support column, and 16 is the coil exit, and 17 is the coil leading-in end, and 18 for supporting needle stand, and 19 for supporting pin, and 20 is insulating sleeve.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail.
General structure design of the present invention as shown in Figure 1.By transmitting coil 1, the part of emission resonant circuit 6 constituent apparatus outside human body environment 4, be used for the emission of electromagnetic energy.Constitute the part within the human body environment 4 by floating type coil support frame 2, receiving coil 3, current rectifying and wave filtering circuit 5, be used for the reception and the rectifying and wave-filtering of electromagnetic energy, thereby can press for access device provides galvanic current.The output of emission resonant circuit 6 connects transmitting coil 1, and emission resonant circuit 6 is used for producing sinusoidal wave, and stimulated emission coil 1 produces alternating magnetic field.Receiving coil 3 places in the floating type coil support frame 2, and the central axis of receiving coil 3 is parallel to the central axis of transmitting coil 1, and the output of receiving coil 3 connects current rectifying and wave filtering circuit 5.
Core feature of the present invention is the floating type coil support frame 2 of receiving coil 3, and its structure wherein, (a) is end view as shown in Figure 2; (b) be vertical view.Floating type coil support frame 2 is made of outer shroud 7, middle ring 8, interior ring 9, is supporting the receiving coil 3 that is made of magnetic core 11, winding 12 and counterweight 10.Winding 12 is that multilayer is close around solenoid, and tube hub inserts magnetic core 11, can improve magnetic flux, and the copper counterweight 10 of column type is big than magnetic core 11 density, is bonded in the winding 12, and compresses magnetic core 11.Receiving coil 3 is owing to the existence of counterweight 10, and its center of gravity is positioned at geometric center on the lower side, and is positioned on the axis.Interior ring 9 tightly is enclosed within outside the receiving coil 3, in between ring 9 and the middle ring 8 interannular by two symmetrical distributions support 13 realizations and contact, in between ring 8 and the outer shroud 7 also the interannular by two symmetrical distributions support 13 and realize that some contact, between encircling in two between the line of interannular support 13 and two the middle outer shrouds line of interannular support 13 vertical mutually.
The interannular that the present invention adopts supports 13, in making between ring 9 and the middle ring 8, be between middle ring 8 and the outer shroud 7 and contact, can provide two rotational freedoms of receiving coil 3 around X-axis and Y-axis.In coordinate system as shown in Figure 2, can in middle ring 8, rotate continuously around the Y-axis of middle ring 8 by the integral body that receiving coil 3 and interior ring 9 synthesize, middle ring 8 can rotate in outer shroud 7 continuously around the X-axis of outer shroud 7.Under natural situation, the axis of receiving coil 3 is always perpendicular to horizontal plane, and this attitude is a kind of stable balance.When receiving coil 3 attitudes changed, its deviation of gravity center axis made receiving coil 3 rotate around X-axis or Y-axis because counterweight 10, therefore can produce moment than big many of magnetic core 11 density, is returned to poised state.Because receiving coil 3 can turn round in middle ring 8 and outer shroud 7 continuously, so no matter the coil relocation mechanism, can guarantee that the axis normal of receiving coil 3 is in horizontal plane at any pose.
A key technology among the present invention is the continuous rotating realization of receiving coil 3 in the relocation mechanism, its lead-out wire as shown in Figure 3, inwall at middle ring 8 is symmetrical arranged ring lead-in wire 14 in two sections, in ring lead-in wire 14 an end with in the interannular of ring support 13 and link to each other, the other end of middle ring lead-in wire 14 links to each other with the interannular support 13 of middle outer shroud.
If directly draw two cables from receiving coil 3, will hinder the motion of receiving coil 3.In the present invention, two lead-out wires of receiving coil 3 earlier from interior ring 9 respectively the interannular by ring in two support 13 guide in ring 8, guide to the interannular support 13 of two middle outer shrouds more respectively along ring lead-in wire 14 in two sections, guide to outer shroud 7 by the interannular support 13 of two middle outer shrouds then, draw from outer shroud 7 again.
Middle ring lead-in wire 14 adopts tiny enamelled wire, uses instant drying adhesive to be bonded on middle ring 8 inwalls.
A very important feature is exactly to have utilized supporting mechanism to realize that as lead terminal the lead-in wire of receiving coil 3 draws among the present invention, its detailed structure can outer shroud 7 and middle ring 8 between interannular support 13 for example illustrates, as shown in Figure 4.
The interannular of middle outer shroud supports 13 and comprises support needle stand 18, support pin 19 and support column 15, supporting needle stand 18 is installed in the middle insulating sleeve 20 that encircles, support column 15 is installed in the insulating sleeve 20 of outer shroud, support pin 19 and be fixed in the center of supporting needle stand 18, the needle point that supports pin 19 stretches into the conical socket that support column 15 front end faces open and withstands support column 15.Support on needle stand 18 and the support column 15 and all have V-shaped valley, in the V-shaped valley that supports needle stand 18, in the V-shaped valley of the exit 16 of receiving coil lead-in wire on the support column 15, and draw from outer shroud from the leading-in end 17 of the receiving coil lead-in wire of middle ring lead-in wire 14.
In order to guarantee certain mechanical strength, outer shroud 7 and middle ring 8 adopt metal material processing, and the insulating sleeve of middle ring and the insulating sleeve of outer shroud are used for guaranteeing the insulation of receiving coil lead-out wire, use strength adhesive to be connected with outer shroud 7 with middle ring 8 respectively.Support needle stand 18 and support column 15 and be metal material processing.
Interannular in the present invention between ring 9 and the middle ring 8 supports 13 structure and the interannular between middle ring 8 and the outer shroud 7 and supports 13 similar.
So, four supporting mechanisms are drawn the lead-out wire of receiving coil 3 respectively via interior ring 9, middle ring 8, outer shroud 7, be connected to current rectifying and wave filtering circuit 5, but the energy that receiving coil 3 is coupled to is produced the D.C. regulated power supply of foreign work through current rectifying and wave filtering circuit 5.
Device of the present invention can be by the mode transmission of power of space alternating electromagnetic field coupling, the FREQUENCY CONTROL of electromagnetic field is in the scope of 10KHz～100KHz, external emission coil 1 axis normal is in horizontal plane, and its frequency is adjustable continuously, will obtain maximum transmitting power when reaching resonance.
Claims (2)
1. electromagnetic energy radio transmitting device towards human body insertion type motion device, comprise outer body by transmitting coil (1), emission resonant circuit (6) constituent apparatus, by part in the body of receiving coil (3), current rectifying and wave filtering circuit (5) formation, the receiving coil (3) that it is characterized in that part in the body places in the floating type coil support frame (2), and the central axis of receiving coil (3) is parallel to the central axis of transmitting coil (1); Floating type coil support frame (2) is made of outer shroud (7), middle ring (8), interior ring (9), and receiving coil (3) is provided with counterweight (10) is positioned under the geometric center center of gravity of coil, and is positioned on the axis; Interior ring (9) tightly is enclosed within outside the receiving coil (3), in between ring (9) and the middle ring (8), between middle ring (8) and the outer shroud (7) respectively separately the interannular by two symmetrical distributions support (13) and realize that some contact, in two between interior the ring between the line of interannular support (13) and two the middle outer shrouds line of interannular support (13) vertical mutually; Be symmetrical arranged ring lead-in wire (14) in two sections at the inwall of middle ring (8), an end of middle ring lead-in wire (14) with in the interannular of ring support (13) and link to each other, the go between other end of (14) of middle ring links to each other with the interannular support (13) of middle outer shroud; Two lead-out wires of receiving coil (3) from interior ring (9) respectively the interannular by ring in two support (13) and guide to middle ring (8), guide to the interannular support (13) of two middle outer shrouds more respectively along ring lead-in wire (14) in two sections, guide to outer shroud (7) by the interannular support (13) of two middle outer shrouds then, draw from outer shroud (7) again, link current rectifying and wave filtering circuit (5).
2, according to the electromagnetic energy radio transmitting device towards human body insertion type motion device of claim 1, it is characterized in that described interannular supports (13) and comprises support needle stand (18), supports pin (19) and support column (15), supporting needle stand (18) is installed in the insulating sleeve (20) of a ring, support column (15) is installed in the insulating sleeve (20) of adjacent ring, support pin (19) and be fixed in the center of supporting needle stand (18), the needle point that supports pin (19) stretches into the conical socket that support column (15) front end face opens and withstands support column (15); Support on needle stand (18) and the support column (15) and all have V-shaped valley, the leading-in end (17) of receiving coil (3) lead-out wire is in the V-shaped valley of support needle stand (18), in the V-shaped valley of the exit of receiving coil lead-out wire (16) on the support column (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100419814A CN100492813C (en) | 2007-06-14 | 2007-06-14 | Electromagnetic energy wireless transmitter for human-body insertion motion device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100419814A CN100492813C (en) | 2007-06-14 | 2007-06-14 | Electromagnetic energy wireless transmitter for human-body insertion motion device |
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| CN101075755A CN101075755A (en) | 2007-11-21 |
| CN100492813C true CN100492813C (en) | 2009-05-27 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9107684B2 (en) * | 2010-03-05 | 2015-08-18 | Covidien Lp | System and method for transferring power to intrabody instruments |
| CN102005829B (en) * | 2010-12-03 | 2012-07-25 | 重庆大学 | Magnetic field tracking servo mechanism for wireless electric power transmission system |
| CN103784144B (en) * | 2012-10-30 | 2015-10-21 | 上海理工大学 | The sine alternating magnetic field generating means of many Magnetic Field Source |
| CN103070659B (en) * | 2013-01-07 | 2015-05-20 | 上海交通大学 | Cable-free air bag type robot system |
| EP3632164B1 (en) * | 2017-06-01 | 2021-07-21 | Signify Holding B.V. | Determining a duty schedule for a group of lighting devices providing a similar lighting service |
| CN109301945A (en) * | 2018-08-27 | 2019-02-01 | 珠海格力电器股份有限公司 | Air conditioner power transmission method and device and air conditioner |
| CN113241240B (en) * | 2021-05-25 | 2022-03-08 | 上海交通大学 | Three-dimensional receiving coil device for wireless energy transmission of capsule endoscopy robot |
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2007
- 2007-06-14 CN CNB2007100419814A patent/CN100492813C/en not_active Expired - Fee Related
Non-Patent Citations (3)
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| A Dual Band Wireless Power and Data TelemetryforRetinalProsthesis. Guoxing Wang, WentaiLiu,Mohanasankar Sivaprakasam,MingcuiZhou,JamesD.Weiland, Mark S.Humayun.Proceedings of the 28th IEEE EMBS Annual International Conference. 2006 |
| A Dual Band Wireless Power and Data TelemetryforRetinalProsthesis. Guoxing Wang, WentaiLiu,Mohanasankar Sivaprakasam,MingcuiZhou,JamesD.Weiland, Mark S.Humayun.Proceedings of the 28th IEEE EMBS Annual International Conference. 2006 * |
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