CN104941065A - Implanted type electrical nerve stimulation system and protection sleeve applied to same - Google Patents
Implanted type electrical nerve stimulation system and protection sleeve applied to same Download PDFInfo
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- CN104941065A CN104941065A CN201510370954.6A CN201510370954A CN104941065A CN 104941065 A CN104941065 A CN 104941065A CN 201510370954 A CN201510370954 A CN 201510370954A CN 104941065 A CN104941065 A CN 104941065A
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Abstract
The invention relates to an implanted type electrical nerve stimulation system. The system comprises a pulse generator, at least one electrode wire and a protection sleeve, wherein the at least one electrical wire comprises an extension lead and an electrode lead, the extension lead is implanted in a human body through a created first subcutaneous tunnel and has a first end part and a second end part which are opposite in the extension direction, the first end part of the extension lead is electrically connected with the pulse generator, and the second end part of the extension lead is electrically connected with the electrode lead, so that a connection part is formed; the protection sleeve comprises a body, the body has at least two cavities which are formed in the body at intervals and used for accommodating the connection part, and the cross section area of the protection sleeve is larger than that of the subcutaneous tunnel.
Description
Technical field
The invention belongs to implantation medical equipment manufacturing technology field, be specifically related to a kind of implantable neural electrical stimulator and be applied to the protective sleeve of this implantable neural electrical stimulator.
Background technology
Implantable neural electrical stimulator is a kind of active implantable medical devices.Implantable neural electrical stimulator by the mode of electricity irritation come excited, suppress or nervous system regulation conduction, thus reach the therapeutic effect recovering or improve function of human body running.Implantable neural electrical stimulation therapy has been proved plants maladjusted nervous system disease to more than 20 and has definite curative effect.Compare with surgical operation damage method with traditional pharmaceutical methods, implantable nerve irritation therapy safety is reversible, is used just more and more clinically.Implantable neural electrical stimulator is according to the difference of stimulation location, implanted lesions located in deep brain system, implanted cortex stimulating system can be subdivided into, implanted spinal cord stimulation trial system, implanted Sacral nerve electrical stimulation system, implanted vagus nerve electric stimulation etc.
Implanted lesions located in deep brain system primarily of pulse generator, extension lead and electrode cable three part composition.The stimulus signal that pulse generator produces is by extension lead and electrode cable, and final arrival stimulates target spot, excites nerve, and produces the effect for the treatment of.Pulse generator is generally placed on the subcutaneous of human chest, is connected with the plug of extension lead; Brain deep is inserted in electrode cable one end, and the other end passes skull, is connected under scalp with the socket of extension lead.Extension lead and electrode cable are by creating hypodermic tunnel implant into body, and it is inner that extension lead and electrode cable are arranged on described hypodermic tunnel.Electrode cable is placed in human body brain, and be limited to the factors such as material, structure, size, the tensile force that electrode cable can bear is very little.Human motion and cervical region activity may make extension lead glide in hypodermic tunnel, and then stretching electrode cable, and this makes electrode cable occur fracture because of over-stressed.Electrode cable, once fracture, must carry out operating substitution, cause very large burden to patient, doctor.
In clinical practice, need the connecting portion of extension lead and electrode cable to be fixed, stretched to avoid electrode catheter.Fixing means known at present has: (1) is fixed with sutures.In operation, one end of sutures is tied up on the connection portion by doctor, and the other end is tied up in tissue, but the situation of Clinical practice shows that this fixed form reliability is poor, has electrode to rupture because of solid failure here.(2) fix with bone groove.In operation, doctor's pre-grinding bone-discharging groove in patient's skull, is placed on coupling part in bone groove.The operation of mill bone groove is comparatively complicated, and fixed effect is large by doctor's operating influence.(3) fix by fixture.As operation in doctor by the titanium sheet with screw hole by coupling part by being pressed on skull, by trip bolt, coupling part, titanium sheet, skull are fixed together, play the effect in the portion of being fixedly connected with.Fixedly there is the drawback of several respects in screw: one, screw expensive, adds the medical expense of patient; Its two, screw generally needs to be fixed on skeleton, needs the skeleton of patient of polishing, can give patient's sense of discomfort; Its three, doctor's mounting screw operation technique in operation process is complicated, not easy to operate; Its four, the fixing of the junction of each extension lead and electrode cable needs to arrange screw, when having multiple connecting portion, needing to arrange more screw, adding the complexity of operation, and misoperation likely toner screw, makes solid failure.
Summary of the invention
In view of this, necessary provide a kind of structure simple, be easy to operation, cost lower and the implantable neural electrical stimulator that can effectively avoid electrode cable to rupture because of Tensile and the protective sleeve being applied to this implantable neural electrical stimulator.
A kind of implantable neural electrical stimulator, comprise a pulse generator, at least one electrode wires and a protective sleeve, described electrode wires comprises an extension lead and an electrode cable, described extension lead is implanted in inside of human body by the first hypodermic tunnel created, described extension lead has relative first end and the second end in the direction of extension, described first end is electrically connected with described pulse generator, described the second end is electrically connected with described electrode cable and forms a junction, described protective sleeve comprises a body, described body has at least two cavitys, at least two described cavitys are disposed on described body interior for holding described connecting portion, the cross-sectional area of described protective sleeve is greater than the cross-sectional area of described hypodermic tunnel.
A kind of protective sleeve being applied to implantable neural electrical stimulator; described protective sleeve comprises a body; described body has at least two cavitys; at least two described cavitys are disposed on described body interior; described cavity is for holding extension lead and electrode cable; it is inner that described extension lead is arranged on a hypodermic tunnel, and the cross-sectional area of described protective sleeve is greater than the cross-sectional area of described hypodermic tunnel.
Relative to prior art; implantable neural electrical stimulator provided by the invention has following beneficial effect: by the cross-sectional area making the cross-sectional area of described protective sleeve be greater than the hypodermic tunnel of coated described extension lead; make extension lead can not along hypodermic tunnel slippage; reach the effect of fixing extension lead and electrode cable connecting portion, and then avoid the fracture causing electrode cable because of stretching electrode cable.This protective sleeve is fixed without the need to arranging screw, and fix outside hypodermic tunnel by protective sleeve self, cost is low and simple to operate, also can not bring sense of discomfort to patient.Simultaneously; when needs arrange multiple electrode wires; protective sleeve comprises at least two cavitys; at least two electrode wires can be held simultaneously; namely can hold at least two connecting portions that extension lead and electrode cable are formed, without the need to arranging multiple independently protective sleeve, when entirety does not increase volume or do not take up space simultaneously; achieve fixing simultaneously, and simplify operation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of implantable neural electrical stimulator of the present invention.
Fig. 2 is the cross-section illustration intention of the protective sleeve of the embodiment of the present invention.
Fig. 3 is the structural representation of the protective sleeve of first embodiment of the invention.
Fig. 4 be the protective sleeve of first embodiment of the invention along II-II line profile.
Fig. 5 is the structural representation of the protective sleeve of second embodiment of the invention.
Fig. 6 is the structural representation of the protective sleeve of third embodiment of the invention.
Fig. 7 is the structural representation of the protective sleeve of fourth embodiment of the invention.
Fig. 8 is the structural representation of the protective sleeve of fifth embodiment of the invention.
Main element symbol description
| Implantable neural electrical stimulator | 100，110，120，130，140，150 |
| Pulse generator | 10 |
| Extension lead | 20 |
| Electrode cable | 30 |
| Protective sleeve | 40 |
| Body | 41 |
| Sub-body | 41a |
| Part I | 411 |
| Part II | 412 |
| Part III | 413 |
| Cavity | 42 |
| Continual-connecting-part | 43 |
| Minor structure body | 431 |
| Protuberance | 44 |
| Space | 47 |
| Protruding | 45 |
| Label | 46 |
| Connecting portion | 50 |
| First hypodermic tunnel | 60 |
| 3rd hypodermic tunnel | 70 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the specific embodiments implantable neural electrical stimulator provided by the invention and the protective sleeve that is applied to this implantable neural electrical stimulator are described in further detail.
Refer to Fig. 1 and Fig. 2, one embodiment of the invention provides implantable neural electrical stimulator 100.Described implantable neural electrical stimulator 100 comprises a pulse generator 10, at least one electrode wires and a protective sleeve 40, described electrode wires comprises extension lead 20 and an electrode cable 30, described extension lead 20 is implanted in inside of human body by the first hypodermic tunnel 60 created, described extension lead 20 has relative first end and the second end in the direction of extension, described first end is electrically connected with described pulse generator 10, described the second end is electrically connected with described electrode cable 30 and forms a junction 50, described protective sleeve 40 comprises a body 41, described body 41 has at least two cavitys 42, at least two described cavitys 42 are disposed on described body 41 inside for holding described connecting portion 50, the cross-sectional area of described protective sleeve 40 is greater than the cross-sectional area of described first hypodermic tunnel 60.
Described implantable neural electrical stimulator 100, according to the difference of stimulation location, can be implanted lesions located in deep brain system, implanted cortex electric stimulation, implanted spinal cord stimulation trial system, implanted Sacral nerve electrical stimulation system or implanted vagus nerve electric stimulation.In this example, described implantable neural electrical stimulator 100 is implanted lesions located in deep brain system.
It is subcutaneous that described pulse generator 10 is implanted in chest, for generation of stimulus signal.Described pulse generator 10 is electrically connected with the first end of described extension lead 20.
Described extension lead 20 is implanted in inside of human body by described first hypodermic tunnel 60 created, for transmitting the stimulus signal that described pulse generator 10 produces.It is inner that described extension lead 20 is arranged on described first hypodermic tunnel 60.Described extension lead 20 has relative first end and the second end in the direction of extension.Described first end is electrically connected with described pulse generator 10, and described the second end and described electrode cable 30 are connected to form described connecting portion 50.The described first end of described extension lead 20 can be a plug construction, and the described the second end of described extension lead 20 can be a socket.
Described electrode cable 30 is implanted in brain deep by establishment second hypodermic tunnel (not shown), and for transmitting the stimulus signal that described pulse generator 10 produces, stimulus signal is arrived stimulates target spot, excites nerve, and produces the effect for the treatment of.Described electrode cable 30 has the 3rd relative end and the 4th end in the direction of extension.Brain deep is inserted in described 3rd end, and described 4th end is electrically connected with the described the second end of described extension lead 20 and forms described connecting portion 50.Described 4th end of described electrode cable 30 can be a plug construction, arranges for being connected with the described the second end of described extension lead 20.
Described connecting portion 50 is made up of the second end of described extension lead 20 and described 4th end of described electrode cable 30, is the part that the second end of described extension lead 20 is connected with described 4th end of described electrode cable 30.Described connecting portion 50 is arranged in the wherein cavity 42 described in of described protective sleeve 40.
Described protective sleeve 40 is implanted in inside of human body by the 3rd hypodermic tunnel 70 created.Described 3rd hypodermic tunnel 70 is connected with described first hypodermic tunnel 60 and the second hypodermic tunnel respectively and arranges.When performing the operation; described 3rd hypodermic tunnel 70 arranges an opening; described extension lead 20 is arranged on after the inner and described electrode cable 30 of described first hypodermic tunnel 60 is arranged on described second hypodermic tunnel inside by described opening by described opening; described opening will be sewn, and form the outside that described 3rd hypodermic tunnel 70 is coated on described protective sleeve 40.
The cross-sectional area of described protective sleeve 40 is greater than the cross-sectional area of described first hypodermic tunnel 60.Defining described extension lead 20 is X with the bearing of trend of described electrode cable 30, and the direction vertical with described X-direction is Y.Then, the cross-sectional area of described protective sleeve 40 is described protective sleeve 40 sectional area in the Y direction.The cross-sectional area of described first hypodermic tunnel 60 is described first hypodermic tunnel 60 sectional area in the Y direction.
The shape of described body 41 and described cavity 42 is not limit, and can select according to actual needs, as long as ensure that the cross-sectional area of described protective sleeve 40 is greater than the cross-sectional area of described first hypodermic tunnel 60.
Described cavity 42 is for holding the described connecting portion 50 of described electrode wires.As long as the size of described cavity 42 makes described extension lead 20 and described electrode cable 30 not easily slide in the described cavity 42 of described protective sleeve.Preferably, the diameter of described cavity 42 mates mutually with the diameter of described extension lead 20.Each described cavity 42 can hold connecting portion 50 described in.When needing in described implantable neural electrical stimulator 100 by arranging at least two described electrode wires for realizing effect of stimulation; this described protective sleeve 40 with at least two described cavitys 42 can hold at least two described connecting portions 50 for fixing at least two described electrode wires simultaneously; and then hold each described electrode wires respectively without the need to arranging multiple independently protective sleeve; when entirety does not increase volume or does not take up space; achieve fixing simultaneously, and simplify operation.In addition, described protective sleeve 40 also can comprise cavity described in two or more further, and the quantity of described cavity can the quantity of electrode wires as required be determined.
Described protective sleeve 40 comprises body 41 described in, and described body 41 has at least two described cavitys 42.As long as ensure that described protective sleeve 40 comprises at least two described cavitys 42, the shape of described body 41 is not limit.Particularly, described body 41 can comprise at least one sub-body.Described body 41 can be a hollow structure, and centre can arrange barrier film, makes described body 41 be isolated into the structure with at least two described cavitys 42.As shown in Figure 2, the shape of described body 41 can be cylindrical shape.In the middle of cylindric described body 41, a barrier film is set, the described body 41 of cylindrical shape is isolated into the structure with two described cavitys 42.
Further, described body 41 can comprise two sub-body 41a and a continual-connecting-part 43.Described two sub-body 41a are arranged side by side, and connect by described continual-connecting-part 43.Every sub-body 41a has a described cavity 42.Two described cavity 42 intervals are arranged.The structure of described two sub-body 41a can identical also can be different.Preferably, the structure of described two sub-body 41a is identical.
Particularly, the shape of a described sub-body 41a can as shown in Figure 3, and described book body 41a can be made up of Part I 411, Part II 412 and Part III 413 successively on length bearing of trend.Part I 411 and Part III 413 are a cylinder-like structure body.Described Part III 413 is the end carrying described electrode cable 30, and described Part I 411 is the end carrying described extension lead 20.The diameter of described Part II 412 reduces gradually on the direction extended from Part I 411 to Part III 413, is a frustum cone structure.Described Part II 412 has relative five terminal portion and the 6th end.The diameter in described five terminal portion equals the diameter of described Part I 411.Described 6th end equals the diameter of described Part III 413.Because described electrode cable 30 is implanted in human brain neural for stimulation target, in order to avoid bringing excessive burden to patient, the size of described electrode cable 30 needs to become more meticulous, and described extension lead 20 is implanted in human body, strict without the need to the size as described electrode cable 30 to the control overflow of its size.Therefore, in implantable neural electrical stimulator 100, the size of described electrode cable 30 is less than the size of described extension lead 20 usually, and in the described body 41 in Fig. 3 of the present invention correspondingly, the diameter of described Part III 413 is less than the diameter of described Part I 411.Described Part II 412 is the transition structure connecting described Part I 411 and described Part III 413.
Further, the outer surface of described sub-body 41a can arrange at least one protuberance 44, and at least one described protuberance 44 is arranged on described sub-body 41a near one end of described electrode cable 30, bundlees surgical thread for doctor in operation.As long as described protuberance 44 can bundle surgical thread, shape and the quantity of described protuberance 44 are not limit.Described protuberance 44 is the protuberance of a wire, can around the outer surface of described Part III 413 being arranged on described sub-body 41a, and the direction along the outer surface away from described Part III 413 is given prominence to.Particularly, as Fig. 3 when protective sleeve after II-II line section, the cross sectional shape of this protuberance 44 can be semicircle, the rectangle of band fillet, oval or other shapes.Further, when the outer surface of described sub-body 41a can arrange multiple described protuberance 44, multiple described protuberance 44 can be set in parallel in the outer surface of the described Part III 413 of described sub-body 41a.Multiple described protuberance 44 be arranged in parallel and refers to that perpendicular on described sub-body 41a axial direction, multiple described protuberance 44 is parallel to each other.
Further, the outer surface of described sub-body 41a can arrange multiple protruding 45, and multiple described protruding 45 is that point-like is protruding, scattering device at described sub-body 41a near the end of described extension lead 20.Preferably, the multiple described protruding 45 described Part I 411 being arranged on described sub-body 41a.Multiple described shape of protruding 45 and not limitting at the distributing position of the outer surface of described Part I 411, can select according to actual needs.Such as, multiple described protruding 45 can be circular protrusions, are evenly distributed on the outer surface of described Part I 411.Multiple described protruding 45 can be used for increasing frictional force, are beneficial to doctor and grasp protective sleeve and prevent from skidding, be also beneficial to simultaneously and prevent protective sleeve from sliding.
Further; when described protective sleeve 40 comprises at least two described sub-body 41a; also different described sub-body 41a is distinguished by multiple described shape of protruding 45 and distributing position; for distinguishing different described electrode wires; be beneficial to the described electrode cable 30 that doctor judges to be connected with described extension lead 20; by described electrode cable 30 respectively correspondence be arranged on human body diverse location, the effect of stimulation required for acquisition.Particularly, difform described projection 45 can be set respectively to distinguish different described sub-body 41a on the surface of at least two described sub-body 41a; Or form different patterns by arranging different distributing positions by multiple described protruding 45 respectively at least two described sub-body 41a surfaces, distinguish different described sub-body 41a.
Further; when described protective sleeve 40 comprises at least two described sub-body 41a; the outer surface of at least two sub-body 41a can arrange different label 46 respectively; for distinguishing different described electrode wires; be beneficial to the described electrode cable 30 that doctor judges to be connected with described extension lead 20; by described electrode cable 30 respectively correspondence be arranged on human body diverse location, the effect of stimulation required for acquisition.Described label 46 can be the diacritic labellings such as letter, numeral, symbol.
Further, two described sub-body 41a, by the outer wall connection setting of described sub-body 41a, also connect by a continual-connecting-part 43 and arrange.Described continual-connecting-part 43 can be a continuous print structure, also can have multiple minor structure bodies 431 of spaced setting.When described continual-connecting-part 43 is a continuous print structure, described continual-connecting-part 43 can have at least one through hole (not shown).When described continual-connecting-part 43 has multiple minor structure body 431 of spaced setting, between adjacent two sub-structures 431, there is a space 47.Shape and the large I in described through hole and described space 47 are arranged according to actual needs.During operation, suture can be penetrated described through hole or described space 47 by doctor, ties up in tissue by protective sleeve 40, can overlap the fixed effect of 40 by more protection further, avoid protective sleeve to slide.
Described body 41 can comprise plural described cavity 42 further, and now, described body 41 can arrange multiple barrier film and form plural described cavity 42, also may correspond to the sub-body 41a identical with described cavity 42 quantity comprising and being arranged side by side.
Embodiment 1
Refer to Fig. 3 and Fig. 4, the embodiment of the present invention 1 provides implantable neural electrical stimulator 110.Described implantable neural electrical stimulator 100 comprises a pulse generator 10, two described extension leads 20, two described electrode cables 30 and a protective sleeve 40, each described extension lead 20 has relative first end 21 and the second end 22 in the direction of extension, described first end 21 is electrically connected with described pulse generator 10, described the second end 22 is electrically connected with described electrode cable 30 and forms a junction 50, described protective sleeve 40 comprises two described sub-body 41a and two described cavitys 42, each described sub-body 41a has a described cavity 42, two described cavitys 42 are disposed on described sub-body 41a inside, it is inner that each described connecting portion 50 is separately positioned on a described cavity 42, the cross-sectional area of described protective sleeve 40 is greater than the cross-sectional area of described first hypodermic tunnel 60 of coated described extension lead 20.
Particularly, in the present embodiment 1, the outer surface of the described Part III 413 of described sub-body 41a arranges a circular protrusions 44.Two described sub-body 41a connect setting by a continuous print continual-connecting-part 43.
Embodiment 2
Refer to Fig. 5, the embodiment of the present invention 2 provides implantable neural electrical stimulator 120.The structure of described implantable neural electrical stimulator 120 is substantially identical with the structure of described implantable neural electrical stimulator 110, and described difference is: described continual-connecting-part 43 has multiple spaced described minor structure body 431.Between adjacent two described minor structure bodies 431, there is space 47 described in.
Embodiment 3
Refer to Fig. 6, the embodiment of the present invention 3 provides implantable neural electrical stimulator 130.The structure of described implantable neural electrical stimulator 130 is substantially identical with the structure of described implantable neural electrical stimulator 110, and described difference is: the outer surface of the Part I 411 of described sub-body 41a evenly arranges projection 45 described in multiple round shape.
Embodiment 4
Refer to Fig. 7, the embodiment of the present invention 4 provides implantable neural electrical stimulator 140.The structure of described implantable neural electrical stimulator 140 is substantially identical with the structure of described implantable neural electrical stimulator 110, described difference is: the described label 46 that the outer surface of the Part I 411 of two described sub-body 41a arranges two different described labels 46, two different is respectively respectively " I ", " II ".
Particularly, described implantable neural electrical stimulator 140 comprises one first extension lead, one second extension lead, one first electrode cable and one second electrode cable, described first extension lead can be electrically connected with described first electrode cable, described first extension lead can be arranged on the described sub-body 41a of described label symbol " I " inner with the described connecting portion 50 of described first electrode cable, described second extension lead is electrically connected with described second electrode cable, the described connecting portion 50 of described second extension lead and described second electrode cable is arranged on the described sub-body 41a inside of described label symbol " II ".The symbol " I " arranged by the outer surface of described sub-body 41a, " II ", doctor can judge and the described electrode cable 30 that different described extension lead 20 connects, by described electrode cable 30 respectively correspondence be arranged on human body diverse location, the effect of stimulation required for acquisition.
Embodiment 5
Refer to Fig. 8, the embodiment of the present invention 5 provides implantable neural electrical stimulator 150.The structure of described implantable neural electrical stimulator 150 is substantially identical with the structure of described implantable neural electrical stimulator 110, described difference is: described continual-connecting-part 43 has multiple spaced described minor structure body 431, has space 47 described between adjacent two described minor structure bodies 431; The outer surface of the Part I 411 of described sub-body 41a evenly arranges projection 45 described in multiple round shape; The described label 46 that the outer surface of the Part I 411 of two described sub-body 41a arranges two different described labels 46, two different is respectively respectively " I ", " II ".
Implantable neural electrical stimulator provided by the invention has following beneficial effect: by the cross-sectional area making the cross-sectional area of described protective sleeve be greater than the hypodermic tunnel of coated described extension lead; make extension lead can not along hypodermic tunnel slippage; reach the effect of fixing extension lead and electrode cable connecting portion, avoid stretching electrode cable and then avoid causing because of stretching electrode cable the fracture of electrode cable.This protective sleeve is fixed without the need to arranging screw, and fix outside hypodermic tunnel by protective sleeve self, cost is low and simple to operate, also can not bring sense of discomfort to patient.Simultaneously; when needs arrange multiple electrode wires; protective sleeve comprises at least two cavitys; at least two electrode wires can be held simultaneously; namely can hold at least two connecting portions that extension lead and electrode cable are formed, without the need to arranging multiple independently protective sleeve, when entirety does not increase volume or do not take up space simultaneously; achieve fixing simultaneously, and simplify operation.
In addition, those skilled in the art also can do other changes in spirit of the present invention, and certainly, these changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.
Claims (10)
1. an implantable neural electrical stimulator, comprise a pulse generator, at least one electrode wires and a protective sleeve, described electrode wires comprises an extension lead and an electrode cable, described extension lead is implanted in inside of human body by the first hypodermic tunnel created, described extension lead has relative first end and the second end in the direction of extension, described first end is electrically connected with described pulse generator, described the second end is electrically connected with described electrode cable and forms a junction, it is characterized in that, described protective sleeve comprises a body, described body has at least two cavitys, at least two described cavitys are disposed on described body interior for holding described connecting portion, the cross-sectional area of described protective sleeve is greater than the cross-sectional area of described hypodermic tunnel.
2. implantable neural electrical stimulator as claimed in claim 1, it is characterized in that, described body comprises two sub-bodies and a continual-connecting-part, and described continual-connecting-part connects two described sub-bodies, each described sub-body has a described cavity, and two described cavity intervals are arranged.
3. implantable neural electrical stimulator as claimed in claim 2, described implantable neural electrical stimulator comprises two described electrode wires, two described extension leads and two described electrode cables form two described connecting portions, and each described connecting portion is separately positioned in a described cavity.
4. implantable neural electrical stimulator as claimed in claim 2, it is characterized in that, described continual-connecting-part has multiple minor structure bodies of spaced setting, has a space between adjacent two described minor structure bodies.
5. one kind is applied to the protective sleeve of implantable neural electrical stimulator; described protective sleeve comprises a body; described body has at least two cavitys; at least two described cavitys are disposed on described body interior; described cavity is for carrying extension lead and electrode cable; it is inner that described extension lead is arranged on a hypodermic tunnel, and the cross-sectional area of described protective sleeve is greater than the cross-sectional area of described hypodermic tunnel.
6. be applied to the protective sleeve of implantable neural electrical stimulator as claimed in claim 5, it is characterized in that, the outer surface of described body is provided with multiple point-like projection, and described in multiple point-like, projection is arranged on described body one end near described extension lead.
7. be applied to the protective sleeve of implantable neural electrical stimulator as claimed in claim 5, it is characterized in that, the outer surface of described body is provided with the protuberance of at least one wire, and described protuberance is around being arranged on described body one end near described electrode cable.
8. be applied to the protective sleeve of implantable neural electrical stimulator as claimed in claim 5; it is characterized in that; described body comprises two sub-bodies and a continual-connecting-part; described continual-connecting-part connects two described sub-bodies; each described sub-body has a described cavity, and two described cavity intervals are arranged.
9. be applied to the protective sleeve of implantable neural electrical stimulator as claimed in claim 8, it is characterized in that, the outer surface of two described sub-bodies arranges different labels respectively.
10. be applied to the protective sleeve of implantable neural electrical stimulator as claimed in claim 8, it is characterized in that, described continual-connecting-part has multiple minor structure bodies of spaced setting, has a space between adjacent two described minor structure bodies.
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| CN110721402A (en) * | 2018-07-16 | 2020-01-24 | 上海交通大学 | Implanted nerve electrode system |
| CN112156357A (en) * | 2020-09-30 | 2021-01-01 | 北京品驰医疗设备有限公司 | Skull screw |
| CN113713259A (en) * | 2021-11-02 | 2021-11-30 | 上海神奕医疗科技有限公司 | Implanted electrode and implanted electrical stimulation system |
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| CN204890959U (en) * | 2015-06-30 | 2015-12-23 | 北京品驰医疗设备有限公司 | Neural electro photoluminescence system of implanted and be applied to protective sheath of neural electro photoluminescence system of this implanted |
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| CN110721402B (en) * | 2018-07-16 | 2023-11-21 | 上海交通大学 | Implantable neural electrode system |
| CN112156357A (en) * | 2020-09-30 | 2021-01-01 | 北京品驰医疗设备有限公司 | Skull screw |
| CN112156357B (en) * | 2020-09-30 | 2023-08-04 | 北京品驰医疗设备有限公司 | Self-tapping and self-drilling skull screw |
| CN113713259A (en) * | 2021-11-02 | 2021-11-30 | 上海神奕医疗科技有限公司 | Implanted electrode and implanted electrical stimulation system |
| CN113713259B (en) * | 2021-11-02 | 2022-03-18 | 上海神奕医疗科技有限公司 | Implanted electrode and implanted electrical stimulation system |
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