CN209003999U

CN209003999U - A kind of Intracranical deep electrode

Info

Publication number: CN209003999U
Application number: CN201820980967.4U
Authority: CN
Inventors: 戴欢; 张文涛; 陈新蕾; 孟栋良
Original assignee: Hangzhou Nobel Medical Technology Co Ltd
Current assignee: Hangzhou Nobel Medical Technology Co Ltd
Priority date: 2018-06-25
Filing date: 2018-06-25
Publication date: 2019-06-21
Anticipated expiration: 2028-06-25

Abstract

A kind of Intracranical deep electrode, including multi-lumen tube, a certain number of beckets and a certain number of conducting wires, multi-lumen tube axially offer several perforative cavitys, radially offer several holes connection cavity, and each cavity accommodates a conducting wire, and metal ring is in multi-cavity pipe outer wall.The pole strength of the utility model is high, an only conducting wire in each cavity, and caused by the structure being isolated between one side conducting wire is avoided because of breakage on the other hand in process short circuit facilitates discrimination and chooses, improve efficiency.

Description

A kind of Intracranical deep electrode

Technical field

The utility model relates to the field of medical instrument technology, more particularly, to a kind of Intracranical deep electrode.

Background technique

Intracranical deep electrode is placed in cerebral deep by cerebral surgery operation or stereotaxis device, and intracerebral electric signal passes through electricity Extremely incoming eeg signal reception device.Intracranical deep electrode can assist in region and the epilepsy of interictal dysfunction Stove, cooperation stereotaxis electroencephalogram (SEEG) monitoring positioning causes insane stove, and can determine that the function brain deep cortex of suspicious cortex The intensity and range of paradoxical discharge.Although intracranial skin electrode can be presented to multiple neopallium regions and provide high quality Record, but for several deep regions that may have substantial connection with epileptic attack, energy is monitored using Intracranical deep electrode Obtain better effect.In addition to this, the also recordable brain ditch depths of the Intracranical deep electrode even information of isocortex and right The activity of brain hemisphere depths ectopic neuronal tissue carries out electrophysiologic monitoring.Intracranical deep electrode can be not only used for sending out in epilepsy Make to record brain bioelectrical activity during phase and breaking-out, functional indicia can be carried out with the brain area where opposed access point. In addition, the simply connected record of Intracranical deep electrode additionally aids and is associated special behavior state and neuron activity, and The concussion activity of brain is characterized during epileptic attack.

But to guarantee to bring the smallest wound and pain to patient, the outer diameter of existing Intracranical deep electrode is all Minimum, wall thickness is very thin, and between 0.1-0.2mm range, it is extremely soft that thin-wall construction results in electrode tube, the low easy breakage of intensity.And And Intracranical deep electrode is multi-channel testing, so stranded conductor is to be in twisted wire structure as shown in Figure 1, it is right first that twisted wire is processed Conducting wire just has damage in varying degrees, if wherein there is conducting wire damaged, short circuit easily occurs, causes unnecessary loss.If Some point of insulation protection tube leaks, and entire stranded conductor can be all immersed in body fluid.In addition, in production, due to multi cord It twists together, is difficult to distinguish and choose.

Utility model content

For the above demand, the utility model provides a kind of Intracranical deep electrode, and pole strength is high, in each cavity only A piece conducting wire, short circuit caused by the structure being isolated between conducting wire is avoided because of breakage.

In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:

A kind of Intracranical deep electrode, including multi-lumen tube, a certain number of beckets and a certain number of conducting wires, multi-lumen tube axis To several perforative cavitys are offered, several holes connection cavity is radially offered, each cavity accommodates a conducting wire, metal ring In multi-cavity pipe outer wall.Multi-lumen tube intensity with part solid core design is high, is mutually isolated between conducting wire, on the one hand breakage is avoided to make At short circuit, on the other hand conducting wire in the process easy to process distinguishes and chooses.

Preferably, described multi-lumen tube one end is equipped with electrode tip, electrode tip one end is spherical end, and the other end is equipped with Inserted block, multi-cavity end surfaces offer the slot to match.It processes and easy to assembly, and reduces the wound and pain of patient.

Preferably, the cavity is in circumferential array at a circle or two circles.It is evenly arranged on one or two concentric circles, Two circles are applicable to the more situation of number of conductors, and interior external cavity is staggered, convenient for the setting in hole.

Preferably, the hole arranges in the shape of a spiral.

Preferably, the material of the becket is platinumiridio.

Utility model has the advantages that the structure of 1, multi-lumen tube increases the intensity of electrode entirety, greatly reduce brokenly The probability of damage, even if multi-lumen tube certain point leaks, the only wherein a certain conducting wire of influence；

2, multi-lumen tube keeps being isolated between each conducting wire, will not short circuit even if conducting wire has breakage；

3, there was only single line in each chamber, in processing technology, facilitate discrimination and choose, improve efficiency；

4, motor overall security is high, facilitates fault detection；

5, wire rod used by current electrode fabrication is largely external customization, and the process-cycle of twisted wire is excessively long, if Using per share isolated form, then the time consumed by buying twisted wire is eliminated.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of existing electrode cable；

Fig. 2 is the structural schematic diagram of embodiment one；

Fig. 3 is the cross-sectional view of one medial end portions of embodiment；

Fig. 4 is the structural schematic diagram of multi-lumen tube and conducting wire in embodiment one；

Fig. 5 is the structural schematic diagram of multi-lumen tube in embodiment one；

Fig. 6 is the structural schematic diagram of multi-lumen tube in embodiment two；

Fig. 7 is the structural schematic diagram of electrode tip in embodiment one.

Main element symbol description in figure: 1, multi-lumen tube；1.1, cavity；1.2, hole；1.3, slot；2, becket；3, it leads Line；4, electrode tip；4.1, end；4.2, inserted block.

Specific embodiment

For clearer statement the utility model, the utility model will be further described with reference to the accompanying drawing.

Embodiment one: as shown in Fig. 2-5 and Fig. 7, a kind of Intracranical deep electrode, including multi-lumen tube 1, a certain number of metals Ring 2, a certain number of conducting wires 3 and electrode tip 4, multi-lumen tube 1 is axial to offer several perforative cavitys 1.1, if radially offering The dry hole 1.2 arranged in the shape of a spiral is connected to cavity 1.1, and each cavity 1.1 accommodates a conducting wire 3, and 2 sets of becket in multi-lumen tube 1 Outer wall and its material are platinumiridio.4 one end of electrode tip is spherical end 4.1, and the other end is equipped with inserted block 4.2, multi-lumen tube 1 End face offers the slot 1.3 to match.

In the present embodiment, cavity 1.1 is evenly arranged on a concentric circles in circumferential array at a circle, is suitable for electricity The case where polar conductor negligible amounts.

Embodiment two: as shown in connection with fig. 6, the difference with embodiment one is, 1 upper plenum 1.1 of multi-lumen tube is in circumferential array It at two circles, is evenly arranged on two concentric circles, and interior external cavity 1.1 is staggered, it is a fairly large number of to be suitable for electrode cable Situation.

The foregoing is merely the structure features of specific embodiment of the utility model, but the utility model to be not limited to This, the utility model can be used on similar product, and any those skilled in the art is in the field of the utility model, institute The changes or modifications of work all cover among the scope of the patents of the utility model.

Claims

1. a kind of Intracranical deep electrode, it is characterised in that: including multi-lumen tube (1), a certain number of beckets (2) and certain amount Conducting wire (3), multi-lumen tube (1) axially offers several perforative cavitys (1.1), it is empty radially to offer several holes (1.2) connection Chamber (1.1), each cavity (1.1) accommodate a conducting wire (3), and becket (2) is covered in multi-lumen tube (1) outer wall.

2. a kind of Intracranical deep electrode according to claim 1, it is characterised in that: described multi-lumen tube (1) one end is equipped with electricity Cartridge (4), electrode tip (4) one end are spherical end (4.1), and the other end is equipped with inserted block (4.2), and multi-lumen tube (1) end face is opened Equipped with the slot (1.3) to match.

3. a kind of Intracranical deep electrode according to claim 1, it is characterised in that: the cavity (1.1) is in circumferential array At a circle or two circles.

4. a kind of Intracranical deep electrode according to claim 3, it is characterised in that: the hole (1.2) arranges in the shape of a spiral.

5. a kind of Intracranical deep electrode according to claim 1, it is characterised in that: the material of the becket (2) is platinum Iridium alloy.