CN105919589A - Magnetic-positioning ring mapping electrode catheter provided with sensor and disc-like spiral structure at head end - Google Patents
Magnetic-positioning ring mapping electrode catheter provided with sensor and disc-like spiral structure at head end Download PDFInfo
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- CN105919589A CN105919589A CN201610362762.5A CN201610362762A CN105919589A CN 105919589 A CN105919589 A CN 105919589A CN 201610362762 A CN201610362762 A CN 201610362762A CN 105919589 A CN105919589 A CN 105919589A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
- A61B5/065—Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
- A61B5/283—Invasive
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
- A61B5/6869—Heart
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0223—Magnetic field sensors
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a magnetic-positioning ring mapping electrode catheter provided with a sensor and a disc-like spiral structure at the head end and aims to shorten exposure time of X-rays generated through traditional cardiac electrophysiology mapping, reduce use of a contrast medium and reduce identification difficulty of a doctor. A controllable ring is fixedly connected onto a far end head of a catheter and comprises a controllable ring shaped steel wire, the controllable ring shaped steel wire adopts a spiral structure spirally encircled by at least one loop in a plane, the spiral structure is disc-like, the controllable ring shaped steel wire and an axis of the catheter are arranged in the same plane, the controllable ring shaped steel wire is covered with a controllable ring shaped steel wire outer sleeve and an electrode end tube sequentially, at least one ring electrode is arranged on the surface of a ring body of the electrode end tube, the sensor is arranged in a near end of the controllable ring, and a bracing wire is arranged in the catheter. Compared with the prior art, the magnetic-positioning ring mapping electrode catheter has the advantages that the collecting capability of signals is improved, effectiveness and operability of an operation are greatly improved clinically, and the operation time is saved.
Description
Technical field
The present invention relates to a kind of medical surgical instrument, particularly a kind of for cardiac electrophysiology field, coordinate three
The head end of the belt sensor that dimension Mapping System uses has the magnetic orientation Circumferential catheter of coiled spiral structure leads
Pipe.
Background technology
In recent years, three-dimensional mapping system due to safety, accuracy and the high efficiency of its uniqueness, now international,
Domestic clinical heart electro physiology field is widely used to the ARR mapping of various complexity and conduit radio frequency disappears
Melt.Cardiac three-dimensional mapping largely changes traditional cardiac electrophysiology method.For Mu Qian, tradition
Cardiac electrophysiology method be all to obtain the structural information in human body by X-ray imaging or contrast imaging, this
Kind of method one adds patient for the X-ray exposure time, and two add the usage amount of contrast agent, easily
Damaging patient, three, become image is two dimensional image, adds the difficulty of doctor's identification, operation
Very inconvenient.
For the problems referred to above, number of patent application is: 201210370788.6, invention entitled with screw electrode
The mapping catheter of assembly, a kind of mapping catheter being suitable in heart chamber using of this disclosure of the invention has band
Have the far-end mapping assembly of spiral belt, described spiral belt can by means of dilator radial dilatation and contraction,
Making the electrode on described belt to contact heart wall in multiple positions, this have band spiral belt simultaneously
Far-end mapping assembly, this spiral belt is arranged on the same axis with conduit, and spiral belt is along its axle
Line is directed around forming, and this structure is not easy to contact with wall of the heart, but also easily causes signal overlap
Problem.
Summary of the invention
It is an object of the invention to provide the head end of a kind of belt sensor, to have the magnetic orientation of coiled spiral structure ring-type
Mapping electrode catheter, will solve the technical problem that it is to reduce the X-ray exposure that traditional cardiac electrophysiology mapping produces
The light time, and the most three-dimensional mapping 3-dimensional image can be formed within the shorter time, decrease
The use of contrast agent, and reduce the difficulty of doctor's identification, in combination with conduit location in the chambers of the heart,
The operation technique making doctor is convenient a lot.
For solving the problems referred to above, the present invention realizes by the following technical solutions: the head end tool of a kind of belt sensor
There is the magnetic orientation Circumferential catheter conduit of coiled spiral structure, including handle apparatus and the tool of far-end of near-end
Resilient conduit, is provided with adapter on the near-end of handle apparatus, fixing in the distal tip of described conduit
Connection has controlled circle, controlled circle to include, and controlled delineation shaped steel wire, controlled delineation shaped steel wire are in one plane
The helical structure of at least one loop of spiral surrounding, this helical structure is plate-like, controlled delineation shaped steel wire with lead
The axis of pipe is disposed on the same plane, and is coated with controlled delineation shaped steel outside controlled delineation shaped steel wire successively
Silk trocar sheath and electrode tip pipe, at least provided with a ring electrode on the circle body surface of electrode tip pipe, at ring electricity
The inner side of pole wire in being located at conduit, handle apparatus is connected with adapter, sets in the near-end of controlled circle
Having sensor, the wire of sensor is connected with adapter through conduit and handle apparatus；Bracing wire it is provided with in conduit,
The distal tip of bracing wire is welded with the fixing end termination of controlled delineation shaped steel wire through the inner chamber of electrode tip pipe, bracing wire
Near-end be connected with handle apparatus.
Controlled circle of the present invention also include the union joint be located on controlled delineation shaped steel wire movable end termination with
And connect the fixing end termination of controlled delineation shaped steel wire and the changeover portion conduit of double-hole tube distal tip, electrode tip
The inner chamber of pipe and the inner chamber UNICOM of changeover portion conduit, sensor is located in changeover portion conduit.
Conduit of the present invention includes being located at the conduit pipe shaft of handle apparatus far-end, being located at conduit pipe shaft far-end
Flexible double-hole tube on termination, described double-hole tube has two tube chambers, the respectively first tube chamber, second
Tube chamber, the inner chamber of changeover portion conduit and the first tube chamber of double-hole tube, the second tube chamber UNICOM；The inner side of ring electrode
Wire in being located at the first tube chamber of double-hole tube, conduit pipe shaft, handle apparatus is connected with adapter；Bracing wire
Distal tip after the inner chamber of the second tube chamber, the inner chamber of changeover portion conduit and the electrode tip pipe of double-hole tube with
The fixing end termination welding of controlled delineation shaped steel wire.
Ring electrode of the present invention is disposed on the circle body of electrode tip pipe.
The tube wall of conduit pipe shaft of the present invention has been embedded in stainless steel cloth.
Handle apparatus of the present invention includes the handle casing with through hole, and through hole is arranged on handle casing axle
On line, the distal tip of handle casing is provided with threaded handle cover, in the far-end end face of handle cover
Portion is provided with the handle cap bore with through hole UNICOM, and the far-end of described handle casing is provided with push rod, described push rod near
Holding and insert in through hole from handle cap bore, be provided with one week protruding handle on push rod, push rod is divided into by handle
Distal rod portion, proximal stem portion, be provided with in push rod and run through push rod far-end end face and the push rod of proximal face
Through hole, push rod through hole is arranged on the axis of push rod, and it is remote that the proximal tips of conduit pipe shaft is fixed on push rod through hole
In the tube chamber of end；The periphery wall of proximal stem portion is provided with guide groove, on the perisporium of the far-end of handle casing with
Corresponding section, guide groove position is provided with the spacing post holes with through hole UNICOM, and spacing post holes has female thread, spacing
Being provided with the spacing stud threadeded with it in post holes, the lower end of spacing stud is stretched in guide groove, spacing stud
For limiting the shift position of push rod；Distal rod portion is cased with threaded locking nut；Described through hole
Near-end in be provided with handle inner core, the axis of handle inner core is provided with inner core through hole, in the periphery of handle inner core
Wall is provided with the first fixation with steel wire post holes connected with inner core through hole, and the first fixation with steel wire post holes is provided with interior spiral shell
Stricture of vagina, is provided with the second fixation with steel wire post holes on the near-end perisporium of handle casing, sets in the second fixation with steel wire post holes
There are fixation with steel wire post, fixation with steel wire post and the first fixation with steel wire post holes threaded, under fixation with steel wire post
It is fixed that end is provided with the steel wire connected after fixation with steel wire post is fully screwed in the second fixation with steel wire post holes with inner core through hole
Position post through hole, the proximal tips of described bracing wire is through push rod through hole, inner core through hole distal portions, steel wire locating dowel
After through hole and inner core through hole proximal part, turn fixation with steel wire post, make steel wire locating dowel through hole lead to inner core
Hole misplaces, and bracing wire is fixed.
Pass through between distal tip and the fixing end termination of controlled delineation shaped steel wire of bracing wire of the present invention
Riveting sealing of tube.
Riveting tube-surface of the present invention cladding riveting pipe-in-pipe.
A diameter of 0.8mm-1mm of sensor of the present invention；A length of 8mm-12mm, described sensor
For electromagnetic transducer；The maximum outside diameter of controlled circle is 10mm-25mm, and the spacing between adjacent two loops is
1mm-6mm；Controlled delineation shaped steel wire is provided with the loop of more than two, and the steel wire diameter of controlled delineation shaped steel wire is
0.2mm-0.4mm, controlled delineation shaped steel wire uses the material with elastic shape memory to make；Controlled delineation type
The lumen diameter of steel wire trocar sheath is 0.3mm-0.5mm, and external diameter is 0.5mm-0.7mm, controlled delineation shaped steel wire
Trocar sheath uses PEBAX, polyurethane, block polyamide or nylon material to make；The internal diameter of ring electrode is
1.3mm-1.8mm, external diameter is 1.35mm-1.85mm, and width is 1mm-2mm, and ring electrode uses platinumiridio
Or gold makes；Electrode tip bore is 0.8mm-1.2mm, and external diameter is 1mm-2mm, a length of 90mm-110mm,
Electrode tip pipe uses PEBAX, polyurethane, block polyamide or nylon material to make；The external diameter of double-hole tube is
1.6mm-4mm, a length of 30mm-50mm, a diameter of 0.75mm-0.85mm of the first tube chamber of double-hole tube,
A diameter of 0.6mm-0.7mm of the second tube chamber, double-hole tube uses PEBAX, polyurethane, block polyamide or Buddhist nun
Dragon material is made；The external diameter of changeover portion conduit is 1.6mm-4mm, and internal diameter is 1mm-3mm, a length of 5mm-25mm,
Changeover portion conduit uses polyurethane, block polyamide or nylon material to make；The internal diameter of conduit pipe shaft is
1mm-3mm, external diameter is 1.6mm-4mm, a length of 1100mm-1300mm, conduit pipe shaft employing polyurethane,
Block polyamide or nylon material are made；The copper cash of a diameter of 0.1-0.2mm of wire.
Controlled delineation shaped steel wire of the present invention uses Nitinol to make.
The present invention compared with prior art, the sensor being provided with in distal end of catheter, it is possible to achieve to conduit
Location, the helical structure of at least one loop of in one plane spiral surrounding of distal end of catheter end controlled
Circle, is provided with multiple ring electrode on controlled circle, and it can improve contacting between conduit with heart, improves letter
Number collection ability, can directly quickly patient be entered by Computerized three-dimensional cardiac electrophysiology Mapping
The three-dimensional imaging of the row chambers of the heart, completes three-dimensional modeling, considerably increases effectiveness and the operation of operation clinically
Property, save operating time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation after the conduit pipe shaft bending of the present invention.
Fig. 3 is the structural representation of the controlled circle of the present invention.
Fig. 4 is the internal structure schematic diagram of electrode tip pipe of the present invention and double-hole tube.
Fig. 5 is the internal structure partial enlarged drawing of electrode tip pipe of the present invention and double-hole tube
Fig. 6 is the internal structure schematic diagram of union joint of the present invention and electrode tip pipe
Fig. 7 is the internal structure schematic diagram of handle apparatus of the present invention.
Fig. 8 is the sectional view of conduit pipe shaft of the present invention.
Detailed description of the invention
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, the magnetic orientation ring-type mapping electricity of the head end coiled spiral structure of the belt sensor of the present invention
Pole conduit includes the handle apparatus 1 of near-end and the resilient conduit of tool 2 of far-end, and described conduit 2 includes being located at
The conduit pipe shaft 3 of handle apparatus 1 far-end, be located in conduit pipe shaft 3 distal tip flexible there are two
The double-hole tube 4 of tube chamber, is provided with controlled circle 5 in double-hole tube 4 distal tip, and the tube chamber of double-hole tube 4 is respectively
One tube chamber the 41, second tube chamber 42, the double-hole tube 4 of distal end of catheter can be entered by conduit 2 by handle apparatus 1
The adjustable bending of row, the near-end of conduit pipe shaft 3 is connected with the far-end of handle apparatus 1, at handle apparatus 1
Near-end be provided with adapter 6；Controlled circle 5 includes controlled delineation shaped steel wire 51, controlled delineation shaped steel wire 51
For the helical structure of in one plane at least one loop of spiral surrounding, this helical structure is plate-like, controlled
Delineation shaped steel wire 51 is disposed on the same plane, outside controlled delineation shaped steel wire 51 with the axis of conduit 2
It is coated with controlled delineation shaped steel wire trocar sheath 56 and electrode tip pipe 54 successively, at the circle body table of electrode tip pipe 54
At least provided with a ring electrode 52 on face, in the inner side of ring electrode 52 through being located at the first tube chamber of double-hole tube 4
41, the wire in conduit pipe shaft 3, handle apparatus 1 is connected with adapter 6, described controlled delineation shaped steel wire
51 have the movable end being located at distal medial and the fixing end being located at proximal lateral, movable end it be in controlled
The helical structure center of the plate-like of delineation shaped steel wire 51, and it is in controlled delineation shaped steel wire 51 to fix end
Proximal end at.
As shown in Figure 3 and Figure 4, controlled circle 5 also includes being located at the distal medial of controlled delineation shaped steel wire 51
Union joint 53 on movable end termination and by the fixing end termination of the proximal lateral of controlled delineation shaped steel wire 51
The changeover portion conduit 55 being connected with the distal tip of double-hole tube 4, the inner chamber of electrode tip pipe 54 and changeover portion conduit
The inner chamber UNICOM of 55, the Liang Ge tube chamber UNICOM of the inner chamber of changeover portion conduit 55 and double-hole tube 4, ring electrode 52
It is provided with several, is respectively separated on the circle body being arranged on electrode tip pipe 54, so can make the current potential of mapping more
Add uniformly, and the covering of ring electrode 52 is more comprehensively, such as, general normal ducts unit plane in heart
Long-pending can only cover 5 electrodes, and the present invention equal unit area can cover 10 the most.
As shown in Figure 4 and Figure 5, being provided with bracing wire 7 in conduit pipe shaft 3, bracing wire 7 Surface coating has bracing wire outer tube
71, main purpose is to prevent wire and bracing wire from producing interference, and the distal tip of bracing wire 7 is through the of double-hole tube 4
The inner chamber of two tube chambers 42, the inner chamber of changeover portion conduit 55 and electrode tip pipe 54 and controlled delineation shaped steel wire 51
The fixing end termination welding of near-end, welded by riveting pipe 8 between the two, changeover portion conduit is located at by riveting pipe 8
55 tube chamber bottoms, riveting pipe 8 surface is coated with by riveting pipe-in-pipe 81, prevents riveting pipe 8 surface and wire, sensing
Device 9 produces contact, and the near-end of bracing wire 7 is connected with handle shape 1.It is provided with sensor in changeover portion conduit 55
9, the wire of sensor 9 through changeover portion conduit 55, the first tube chamber 41 of double-hole tube 4, conduit pipe shaft 3, with
And handle apparatus 1 is connected with adapter 6.
As shown in Figure 6, union joint 53 and electrode tip pipe 54 by the hierarchic structure on union joint 53 near-end with
The tight grafting of far-end of electrode tip pipe 54 is connected, and is provided with union joint cavity for controlled delineation type in union joint 53
The movable end termination of the distal medial of steel wire 51 is stretched into, the movable end of controlled delineation shaped steel wire 51 distal medial
Termination polishes smooth process, prevents from damaging inside union joint.
As it is shown in fig. 7, handle apparatus 1 includes the handle casing 11 with through hole 12, through hole 12 is arranged on
On handle casing 11 axis, the distal tip of handle casing 11 is provided with threaded handle cover 13,
The distal end Middle face of handle cover 13 is provided with and the handle cap bore 14 of through hole 12 UNICOM, described handle casing 11
Far-end be provided with push rod 15, the near-end of described push rod 15 inserts in through hole 12 from handle cap bore 14, at push rod
15 are provided with one week protruding handle 151, and push rod 15 is divided into distal rod portion 152, near-end by handle 151
Bar portion 153, the push rod through hole being provided with in push rod 15 with running through push rod 15 far-end end face and proximal face
154, push rod through hole 154 is arranged on the axis of push rod 15, and the proximal tips of conduit pipe shaft 3 is fixed on and pushes away
In the tube chamber of rod through-hole 154 far-end；The periphery wall of proximal stem portion 153 is provided with guide groove 155, outside handle
It is provided with and the spacing post holes of through hole 12 UNICOM with corresponding section, guide groove 155 position on the perisporium of the far-end of shell 11
111, spacing post holes 111 has female thread, is provided with the spacing spiral shell threadeded with it in spacing post holes 111
Post 16, the lower end of spacing stud 16 is stretched in guide groove 155, and spacing stud 16 is for limiting the shifting of push rod 15
Dynamic position；Distal rod portion 152 is cased with threaded locking nut 17；In the near-end of described through hole 12
Being provided with handle inner core 18, the axis of handle inner core 18 is provided with inner core through hole 181, at handle inner core 18
Periphery wall is provided with the first fixation with steel wire post holes 182 connected with inner core through hole 181, the first fixation with steel wire post holes
182 are provided with female thread, are provided with the second fixation with steel wire post holes 112 on the near-end perisporium of handle casing 11,
Fixation with steel wire post 19, fixation with steel wire post 19 and the first fixation with steel wire post it is provided with in second fixation with steel wire post holes 112
Hole 182 is threaded, is provided with when fixation with steel wire post 19 is fully screwed into second in the lower end of fixation with steel wire post 19
The steel wire locating dowel through hole 191 connected with inner core through hole 181 after in fixation with steel wire post holes 112, described bracing wire 7
Proximal tips through push rod through hole 154, inner core through hole 181 distal portions, steel wire locating dowel through hole 191 and
After inner core through hole 181 proximal part, turn fixation with steel wire post 19, make steel wire locating dowel through hole 191 and inner core
Through hole 181 misplaces, and bracing wire 17 is fixed.
When promoting push rod 15, the degree of crook (shown in Fig. 2) of scalable double-hole tube 4, this double-hole tube 4 curved
Qu Fangxiang is for be bent downwardly along controlled circle 1 place plane.Its cardinal principle is as follows:
Bracing wire steel wire 7 through the second tube chamber 42 of double-hole tube 4 owing to being the eccentric orfice in deviation conduit 2 axle center,
When the head end of bracing wire steel wire 7 be connected with riveting pipe 8 fixing after, after tail end is connected with handle inner core 18 and fixes, draw
Line 7 length of Tensile in conduit is fixing.When promoting push rod 15 when, owing to double-hole tube 4 is
Can bend, therefore the thrust of push rod 15 will force double-hole tube 4 to an eccentric lateral bending by bracing wire 7
Song, by controlling the offset of the second tube chamber 42 of double-hole tube, removes to realize the degree of crook of double-hole tube.
As shown in Figure 8, the tube wall at conduit pipe shaft 3 has been embedded in stainless steel cloth 31.
A diameter of 0.8mm-1mm of sensor of the invention 9；A length of 8mm-12mm, preferably electromagnetic sensing
Device；The maximum outside diameter of controlled circle 5 is 10mm-25mm, and the spacing between adjacent two loops is 1mm-6mm；
Controlled delineation shaped steel wire 51 is preferably the loop of more than two, and the steel wire diameter of controlled delineation shaped steel wire 51 is
0.2mm-0.4mm, uses the material with elastic shape memory, preferably Nitinol；Controlled delineation shaped steel
Silk trocar sheath 56 lumen diameter be 0.3mm-0.5mm, external diameter is 0.5mm-0.7mm, material be PEBAX,
Polyurethane, block polyamide or nylon material.The internal diameter of ring electrode 52 is 1.3mm-1.8mm, and external diameter is
1.35mm-1.85mm, width is 1mm-2mm, and the making material of ring electrode 52 is preferably platinumiridio or gold；
Electrode tip pipe 54 internal diameter is 0.8mm-1.2mm, and external diameter is 1mm-2mm, a length of 90mm-110mm, uses
PEBAX, polyurethane, block polyamide or nylon material；The external diameter of double-hole tube 4 is 1.6mm-4mm, external diameter
Being preferably 2mm-3mm, a length of 30mm-50mm, the length of double-hole tube 4 can be curved according to the spiral of controlled circle 5
Bent shape determines the length of double-hole tube 4, and a diameter of 0.75mm of the first tube chamber of double-hole tube 4 is extremely
0.85mm, a diameter of 0.6mm-0.7mm of the second tube chamber, use PEBAX, polyurethane, block polyamide or
Nylon material；The external diameter of changeover portion conduit 55 is 1.6mm-4mm, and external diameter is preferably 2mm-3mm, and internal diameter is
1mm-3mm, preferably 1mm-2mm, a length of 5mm-25mm, preferably 10mm-20mm, changeover portion conduit 55
Making material be polyurethane, block polyamide or nylon；The internal diameter of conduit pipe shaft 3 is 1mm-3mm, internal diameter
Being preferably 2mm-3mm, external diameter is 1.6mm-4mm, and external diameter is preferably 2mm-3mm, a length of
1100mm-1300mm, the making material of conduit pipe shaft 3 is polyurethane, block polyamide or nylon；Wire
The copper cash of a diameter of 0.1-0.2mm.
The using method of the present invention: the head end of belt sensor is had the ring-type mark of magnetic orientation of coiled spiral structure
Survey electrode catheter and push in the heart chambers of the heart from femoral artery, control double-hole tube 4 bending by handle apparatus 1 and make
The controlled circle of far-end 5 ring electrode 52 above reclines with chambers of the heart inwall, obtains each some position information, feeds back to three
Dimension Mapping System modeling.Compared with prior art, head end has in one plane that spiral surrounding is at least to the present invention
The controlled circle of the helical structure of one loop, has multiple ring electrode 52 above, and changeover portion conduit 55 is internal to be put
It is equipped with sensor 9, three-dimensional mapping system can be coordinated quickly to realize the mapping of cardiac three-dimensional anatomical structure and build
Mould, and realize catheter positioning and navigation.
The present invention increases mapping area and the signals collecting number of each catheter manipulation on the basis of existing technology
Amount, and on tradition assignment test method so that the current potential of mapping is more uniform, covers more comprehensive, such as
The conduit of the present invention adds the mapping of inner ring, and the distal end of catheter termination of prior art is individual pen circulus,
Compared with existing circulus, the present invention has more loop to go to place ring electrode, thus reaches mapping
Purpose.Secondly, the design of the helical structure of the plate-like of this in one plane spiral surrounding, it is possible to more preferably
The inwall of contact heart, and cannot be easily caused the overlap of signal, and lead with traditional operation operation mapping
The method of pipe is similar to, and is easily understood.The increase of the mapping current potential of operation every time, the data of modeling are the most detailed
Carefully, considerably increase the accuracy of modeling, simultaneously, it is also possible to reduce the number of times of doctor's operation, save operation
Time；From the point of view of the helical structure of conduit header terminal design, compared with conventional circular structure, increase conduit and the heart
The contact area of dirty inwall, meanwhile, helical structure can make the more uniform of the Potential distribution of conduit mapping,
Because standoff distance is all uniform between ring electrode.Secondly, in one plane the spiral of spiral surrounding is tied
Structure can help conduit preferably to take in sheath pipe in operation process, and reduces the resistance between conduit and sheath pipe,
Facilitate operation technique, make operation more safe and efficient.
Claims (10)
1. the head end of belt sensor has a magnetic orientation Circumferential catheter conduit for coiled spiral structure, including near
The handle apparatus (1) of end and the resilient conduit of the tool (2) of far-end, at the near-end of handle apparatus (1)
It is provided with adapter (6), it is characterised in that: it is fixedly connected with in the distal tip of described conduit (2)
Controlled circle (5), controlled circle (5) includes controlled delineation shaped steel wire (51), controlled delineation shaped steel wire (51)
For the helical structure of in one plane at least one loop of spiral surrounding, this helical structure is plate-like, can
Control delineation shaped steel wire (51) is disposed on the same plane, in controlled delineation type with the axis of conduit (2)
Steel wire (51) is outside is coated with controlled delineation shaped steel wire trocar sheath (56) and electrode tip pipe (54) successively,
At least provided with a ring electrode (52) on the circle body surface of electrode tip pipe (54), in ring electrode (52)
Inner side wire in being located at conduit (2), handle apparatus (1) be connected with adapter (6), can
Be provided with sensor (9) in the near-end of control circle (5), the wire of sensor (9) through conduit (2) and
Handle apparatus (1) is connected with adapter (6)；Bracing wire (7), bracing wire (7) it is provided with in conduit (2)
The fixing end termination of the distal tip inner chamber through electrode tip pipe (54) and controlled delineation shaped steel wire (51)
Welding, the near-end of bracing wire (7) is connected with handle apparatus (1).
The head end of belt sensor the most according to claim 1 has the ring-type mapping of magnetic orientation of coiled spiral structure
Electrode catheter, it is characterised in that: described controlled circle (5) also includes being located at controlled delineation shaped steel wire (51)
Union joint (53) on movable end termination and connect the fixing end termination of controlled delineation shaped steel wire (51)
With the changeover portion conduit (55) of double-hole tube (4) distal tip, the inner chamber of electrode tip pipe (54) and transition
The inner chamber UNICOM of section conduit (55), sensor (9) is located in changeover portion conduit (55).
The head end of belt sensor the most according to claim 2 has the ring-type mapping of magnetic orientation of coiled spiral structure
Electrode catheter, it is characterised in that: described conduit (2) includes the conduit being located at handle apparatus (1) far-end
Pipe shaft (3), the flexible double-hole tube (4) being located in conduit pipe shaft (3) distal tip, described double
Hole pipe (4) has two tube chambers, the respectively first tube chamber (41), the second tube chamber (42), changeover portion
The inner chamber of conduit (55) and first tube chamber (41) of double-hole tube (4), the second tube chamber (42) UNICOM；
The inner side of ring electrode (52) through be located at first tube chamber (41) of double-hole tube (4), conduit pipe shaft (3),
Wire in handle apparatus (1) is connected with adapter (6)；The distal tip of bracing wire (7) is through diplopore
Pipe second tube chamber (42) of (4), the inner chamber of changeover portion conduit (55) and electrode tip pipe (54)
After inner chamber, the fixing end termination with controlled delineation shaped steel wire (51) is welded.
4. there is the magnetic of coiled spiral structure according to the head end of the belt sensor described in claims 1 to 3 any one
Position ring-type mapping electrode catheter, it is characterised in that: described ring electrode (52) is disposed on electrode tip
On the circle body of pipe (54).
The head end of belt sensor the most according to claim 4 has the ring-type mapping of magnetic orientation of coiled spiral structure
Electrode catheter, it is characterised in that: the tube wall of described conduit pipe shaft (3) has been embedded in stainless steel cloth (31).
The head end of belt sensor the most according to claim 5 has the ring-type mapping of magnetic orientation of coiled spiral structure
Electrode catheter, it is characterised in that: described handle apparatus (1) includes having outside the handle of through hole (12)
Shell (11), through hole (12) is arranged on handle casing (11) axis, at handle casing (11)
Distal tip is provided with threaded handle cover (13), and the distal end Middle face of handle cover (13) sets
Having the handle cap bore (14) with through hole (12) UNICOM, the far-end of described handle casing (11) is provided with and pushes away
Bar (15), the near-end of described push rod (15) inserts in through hole (12) from handle cap bore (14),
Push rod (15) is provided with one week protruding handle (151), and push rod (15) is split by handle (151)
For distal rod portion (152), proximal stem portion (153), it is provided with in push rod (15) and runs through push rod (15)
The push rod through hole (154) of far-end end face and proximal face, push rod through hole (154) is arranged on push rod (15)
Axis on, the proximal tips of conduit pipe shaft (3) is fixed in the tube chamber of push rod through hole (154) far-end；
The periphery wall of proximal stem portion (153) is provided with guide groove (155), at the far-end of handle casing (11)
Perisporium on be provided with and the spacing post holes (111) of through hole (12) UNICOM with guide groove (155) corresponding section, position,
Spacing post holes (111) has female thread, is provided with, in spacing post holes (111), the limit threadeded with it
Position stud (16), the lower end of spacing stud (16) is stretched in guide groove (155), spacing stud (16)
For limiting the shift position of push rod (15)；Distal rod portion (152) are cased with threaded lock
Jack panel (17)；Handle inner core (18), handle inner core (18) it is provided with in the near-end of described through hole (12)
Axis be provided with inner core through hole (181), the periphery wall of handle inner core (18) is provided with inner core lead to
The first fixation with steel wire post holes (182) that hole (181) connects, the first fixation with steel wire post holes (182) sets
There is female thread, the near-end perisporium of handle casing (11) be provided with the second fixation with steel wire post holes (112),
Fixation with steel wire post (19) it is provided with, fixation with steel wire post (19) and the in second fixation with steel wire post holes (112)
One fixation with steel wire post holes (182) is threaded, is provided with in the lower end of fixation with steel wire post (19) and works as steel wire
Fixing post (19) connects with inner core through hole (181) in being fully screwed into the second fixation with steel wire post holes (112) afterwards
Logical steel wire locating dowel through hole (191), the proximal tips of described bracing wire (7) through push rod through hole (154),
Inner core through hole (181) distal portions, steel wire locating dowel through hole (191) and inner core through hole (181)
After proximal part, turn fixation with steel wire post (19), make steel wire locating dowel through hole (191) and inner core through hole
(181) dislocation, fixes bracing wire (17).
The head end of belt sensor the most according to claim 6 has the ring-type mapping of magnetic orientation of coiled spiral structure
Electrode catheter, it is characterised in that: the distal tip of described bracing wire (7) and controlled delineation shaped steel wire (51)
Fixing end termination between by riveting pipe (8) weld.
The head end of belt sensor the most according to claim 7 has the ring-type mapping of magnetic orientation of coiled spiral structure
Electrode catheter, it is characterised in that: described riveting pipe (8) Surface coating has riveting pipe-in-pipe (81).
The head end of belt sensor the most according to claim 8 has the ring-type mapping of magnetic orientation of coiled spiral structure
Electrode catheter, it is characterised in that: a diameter of 0.8mm-1mm of described sensor (9)；A length of
8mm-12mm, described sensor (9) is electromagnetic transducer；The maximum outside diameter of controlled circle (5) is
10mm-25mm, the spacing between adjacent two loops is 1mm-6mm；Controlled delineation shaped steel wire (51) sets
Having the loop of more than two, the steel wire diameter of controlled delineation shaped steel wire (51) is 0.2mm-0.4mm, can
Control delineation shaped steel wire (51) uses the material with elastic shape memory to make；Outside controlled delineation shaped steel wire
The lumen diameter of sleeve pipe (56) is 0.3mm-0.5mm, and external diameter is 0.5mm-0.7mm, controlled delineation type
Steel wire trocar sheath (56) uses PEBAX, polyurethane, block polyamide or nylon material to make；Ring electricity
The internal diameter of pole (52) is 1.3mm-1.8mm, and external diameter is 1.35mm-1.85mm, and width is 1mm-2mm,
Ring electrode (52) uses platinumiridio or gold to make；Electrode tip pipe (54) internal diameter is 0.8mm-1.2mm,
External diameter is 1mm-2mm, a length of 90mm-110mm, electrode tip pipe (54) use PEBAX, polyurethane,
Block polyamide or nylon material are made；The external diameter of double-hole tube (4) is 1.6mm-4mm, a length of
30mm-50mm, a diameter of 0.75mm-0.85mm of the first tube chamber of double-hole tube (4), the second tube chamber
A diameter of 0.6mm-0.7mm, double-hole tube (4) uses PEBAX, polyurethane, block polyamide or nylon
Material is made；The external diameter of changeover portion conduit (55) is 1.6mm-4mm, and internal diameter is 1mm-3mm, length
For 5mm-25mm, changeover portion conduit (55) uses polyurethane, block polyamide or nylon material to make；
The internal diameter of conduit pipe shaft (3) is 1mm-3mm, and external diameter is 1.6mm-4mm, a length of 1100mm-1300mm,
Conduit pipe shaft (3) uses polyurethane, block polyamide or nylon material to make；Wire a diameter of
The copper cash of 0.1-0.2mm.
The head end of belt sensor the most according to claim 9 has the ring-type mark of magnetic orientation of coiled spiral structure
Survey electrode catheter, it is characterised in that: described controlled delineation shaped steel wire (51) uses Nitinol to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610362762.5A CN105919589B (en) | 2016-05-27 | 2016-05-27 | The head end of belt sensor has the magnetic orientation Circumferential catheter conduit of coiled spiral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610362762.5A CN105919589B (en) | 2016-05-27 | 2016-05-27 | The head end of belt sensor has the magnetic orientation Circumferential catheter conduit of coiled spiral structure |
Publications (2)
| Publication Number | Publication Date |
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| CN105919589A true CN105919589A (en) | 2016-09-07 |
| CN105919589B CN105919589B (en) | 2018-12-18 |
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|---|---|---|---|
| CN201610362762.5A Active CN105919589B (en) | 2016-05-27 | 2016-05-27 | The head end of belt sensor has the magnetic orientation Circumferential catheter conduit of coiled spiral structure |
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Cited By (8)
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| CN107583171A (en) * | 2016-07-08 | 2018-01-16 | 四川锦江电子科技有限公司 | Mapping catheter and there is its mapping catheter component |
| CN108742605A (en) * | 2018-06-19 | 2018-11-06 | 苏州修普诺斯医疗器械有限公司 | Mobile brain wave acquisition device with screw electrode |
| CN109717949A (en) * | 2019-01-04 | 2019-05-07 | 湖南埃普特医疗器械有限公司 | A kind of detection device and interventional therapy instrument |
| CN110251123A (en) * | 2019-07-09 | 2019-09-20 | 深圳市惠泰医疗器械有限公司 | Can simultaneously coordination electrode conduit two kinds of bendings of head end control mechanism |
| CN112285279A (en) * | 2020-09-21 | 2021-01-29 | 山东斯诺电子有限公司 | Malodorous gas detector with integrated temperature compensation technology |
| WO2022088802A1 (en) * | 2020-10-29 | 2022-05-05 | 深圳市赛诺思医疗科技有限公司 | Electrophysiological mapping catheter apparatus |
| CN115137466A (en) * | 2022-07-11 | 2022-10-04 | 洲瓴(上海)医疗器械有限公司 | Electrode catheter for pulse electric field ablation |
| CN116965908A (en) * | 2023-06-27 | 2023-10-31 | 上海玮启医疗器械有限公司 | Intracardiac mapping electrode catheter |
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| CN112285279A (en) * | 2020-09-21 | 2021-01-29 | 山东斯诺电子有限公司 | Malodorous gas detector with integrated temperature compensation technology |
| WO2022088802A1 (en) * | 2020-10-29 | 2022-05-05 | 深圳市赛诺思医疗科技有限公司 | Electrophysiological mapping catheter apparatus |
| CN115137466A (en) * | 2022-07-11 | 2022-10-04 | 洲瓴(上海)医疗器械有限公司 | Electrode catheter for pulse electric field ablation |
| CN116965908A (en) * | 2023-06-27 | 2023-10-31 | 上海玮启医疗器械有限公司 | Intracardiac mapping electrode catheter |
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