CN105919589B - The head end of belt sensor has the magnetic orientation Circumferential catheter conduit of coiled spiral structure - Google Patents
The head end of belt sensor has the magnetic orientation Circumferential catheter conduit of coiled spiral structure Download PDFInfo
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- CN105919589B CN105919589B CN201610362762.5A CN201610362762A CN105919589B CN 105919589 B CN105919589 B CN 105919589B CN 201610362762 A CN201610362762 A CN 201610362762A CN 105919589 B CN105919589 B CN 105919589B
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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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Abstract
The invention discloses the magnetic orientation Circumferential catheter conduits that a kind of head end of belt sensor has coiled spiral structure, technical problems to be solved are the X-ray exposure time for reducing traditional cardiac electrophysiology mapping and generating, reduce the use of contrast agent, and reduces the difficulty of doctor's identification.Controllable circle is fixedly connected in the distal tip of conduit of the present invention, controllable circle includes controllable delineation shaped steel wire, controllable delineation shaped steel wire is the helical structure of in one plane at least one loop of spiral surrounding, helical structure is plate-like, the axis of controllable delineation shaped steel wire and conduit is disposed on the same plane, controllable delineation shaped steel wire outer tube and electrode end pipe are successively coated with outside controllable delineation shaped steel wire, at least provided with a ring electrode on the circle body surface of electrode end pipe, it is equipped with sensor in the proximal end controllably enclosed, is equipped with bracing wire in conduit.Compared with prior art, the ability to collect of signal is improved, the validity and operability of operation are clinically considerably increased, saves operating time.
Description
Technical field
The present invention relates to a kind of medical surgical instruments, especially a kind of to be used for cardiac electrophysiology field, cooperate three-dimensional mapping
The head end for the belt sensor that system uses has the magnetic orientation Circumferential catheter conduit of coiled spiral structure.
Background technique
In recent years, due to its unique safety, accuracy and high efficiency, the now international, country faces three-dimensional mapping system
Bed cardiac electrophysiology field is widely used to the mapping and catheter ablation of various complicated arrhythmia cordis.Cardiac three-dimensional mapping
Largely change traditional cardiac electrophysiology method.For at present, traditional cardiac electrophysiology method is all to pass through X-ray
Imaging or contrast imaging obtain the intracorporal structural information of people, and this method one increases patient for the X-ray exposure time, and two
It increases the usage amount of contrast agent, is easy to damage patient, three, institute is two dimensional image at image, increases doctor
The difficulty of identification operates very inconvenient.
In view of the above-mentioned problems, number of patent application are as follows: 201210370788.6, it is entitled with spiral electrode assembly
Mapping catheter, the disclosure of the invention is a kind of to be suitble to the mapping catheter used in heart chamber to have the distal end with spiral belt
Mapping component, the spiral belt can enable the electrode on the belt more by means of expander radial dilatation and contraction
Heart wall is contacted at a position simultaneously, this to have the distal end mapping component with spiral belt, the spiral belt and conduit are arranged
On same axis, and spiral belt is along its axis direction around forming, and this structure is not easy to contact with wall of the heart, and
And it is also easy to the problem of causing signal overlap.
Summary of the invention
The object of the present invention is to provide the magnetic orientation ring-type mappings that a kind of head end of belt sensor has coiled spiral structure
Electrode catheter, technical problems to be solved are the X-ray exposure time for reducing traditional cardiac electrophysiology mapping and generating, and can be with
More accurate three-dimensional mapping 3-dimensional image is formed within the shorter time, reduces the use of contrast agent, and reduce doctor
The difficulty of raw identification facilitates the surgical procedure of doctor many in combination with positioning of the conduit in the chambers of the heart.
To solve the above problems, the present invention is implemented with the following technical solutions: a kind of head end of belt sensor has plate-like
The magnetic orientation Circumferential catheter conduit of helical structure, the flexible conduit of handle apparatus and distal end including proximal end,
The proximal end of handle apparatus is equipped with connector, is fixedly connected with controllable circle in the distal tip of the conduit, and controllable circle includes can
Control delineation shaped steel wire, it is controllable to draw a circle to approve the helical structure that shaped steel wire is in one plane at least one loop of spiral surrounding, the spiral shell
Rotation structure is plate-like, and the axis of controllable delineation shaped steel wire and conduit is disposed on the same plane, outside controllably delineation shaped steel wire
It is successively coated with controllable delineation shaped steel wire outer tube and electrode end pipe, at least provided with a ring on the circle body surface of electrode end pipe
Electrode connect with connector in the conducting wire that the inside of ring electrode passes through in conduit, handle apparatus, sets in the proximal end controllably enclosed
There is sensor, the conducting wire of sensor is connect through conduit and handle apparatus with connector；Bracing wire, the distal end of bracing wire are equipped in conduit
Inner cavity of the end through electrode end pipe and the fixing end end of controllable delineation shaped steel wire are welded, and the proximal end of bracing wire and handle apparatus connect
It connects.
Controllable circle of the present invention further includes connector and company on controllable delineation shaped steel wire movable end end
Connect the fixing end end of controllable delineation shaped steel wire and the changeover portion conduit of double-hole tube distal tip, the inner cavity of electrode end pipe and transition
The inner cavity connection of section conduit, sensor are set in changeover portion conduit.
Conduit of the present invention includes set on the conduit pipe shaft of handle apparatus distal end, in conduit pipe shaft distal tip
Flexible double-hole tube, double-hole tube tool is there are two lumen, respectively the first lumen, the second lumen, changeover portion conduit
First lumen of inner cavity and double-hole tube, the second lumen connection；The inside of ring electrode passes through the first lumen set on double-hole tube, catheter tube
Conducting wire in body, handle apparatus is connect with connector；Second lumen of the distal tip of bracing wire through double-hole tube, changeover portion conduit
It welds fixing end end behind inner cavity and the inner cavity of electrode end pipe with controllable delineation shaped steel wire.
Ring electrode of the present invention is arranged at intervals on the circle body of electrode end 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 axis,
The handle cover being threadedly coupled is equipped in the distal tip of handle casing, the distal end Middle face of handle cover is equipped with and through-hole connection
Handle cap bore, the distal end of the handle casing is equipped with push rod, and the proximal end of the push rod is being pushed away out of handle cap bore insertion through-hole
Bar is equipped with the handle of one week protrusion, and push rod is divided into distal end bar portion, proximal stem portion by handle, is equipped in push rod and pushes away with running through
The push rod through-hole of bar distal end end face and proximal face, push rod through-hole are arranged on the axis of push rod, the proximal end end of conduit pipe shaft
Head is fixed in the lumen of push rod through-hole distal end；Guide groove is equipped on the periphery wall of proximal stem portion, in the distal end of handle casing
The limit post holes with through-hole connection is equipped on peripheral wall with guide groove position corresponding section, limit post holes has internal screw thread, in limited post
The limit stud being threadedly coupled with it is equipped in hole, the lower end for limiting stud is protruded into guide groove, and limit stud is for limiting push rod
Shift position；The locking nut of threaded connection is cased in the bar portion of distal end；Handle inner core, hand are equipped in the proximal end of the through-hole
The axis of handle inner core is equipped with inner core through-hole, and it is solid that the first steel wire being connected to inner core through-hole is equipped on the periphery wall of handle inner core
Fixed column hole, the first fixation with steel wire post holes are equipped with internal screw thread, and the second fixation with steel wire column is equipped on the proximal end peripheral wall of handle casing
Hole, the second fixation with steel wire post holes is interior to be equipped with fixation with steel wire column, and fixation with steel wire column is threadedly coupled with the first fixation with steel wire post holes, in steel
The lower end of silk fixed column is equipped with the steel being connected to after fixation with steel wire column is fully screwed into the second fixation with steel wire post holes with inner core through-hole
Silk positioning column through-hole, the proximal tips of the bracing wire through push rod through-hole, inner core through-hole distal portions, steel wire positioning column through-hole and
After inner core through-hole proximal part, fixation with steel wire column is turned, so that steel wire positioning column through-hole and inner core through-hole is misplaced, bracing wire is fixed.
Pass through riveting pipe between the distal tip of bracing wire of the present invention and the fixing end end of controllable delineation shaped steel wire
Welding.
Riveting pipe surface of the present invention coats riveting pipe-in-pipe.
The diameter of sensor of the present invention is 0.8mm-1mm；Length is 8mm-12mm, and the sensor is electromagnetism biography
Sensor；The maximum outside diameter controllably enclosed is 10mm-25mm, and the spacing between two neighboring loop is 1mm-6mm；Controllable delineation fashioned iron
Silk is equipped with two or more loops, and the controllable steel wire diameter for drawing a circle to approve shaped steel wire is 0.2mm-0.4mm, and controllable shaped steel wire of drawing a circle to approve uses
Material with elastic shape memory is made；The lumen diameter of controllable delineation shaped steel wire outer tube is 0.3mm-0.5mm, and outer diameter is
0.5mm-0.7mm, controllable shaped steel wire outer tube of drawing a circle to approve are made of PEBAX, polyurethane, block polyamide or nylon material；Ring
The internal diameter of electrode is 1.3mm-1.8mm, outer diameter 1.35mm-1.85mm, width 1mm-2mm, and ring electrode uses platinumiridio
Or gold is made；Electrode tip bore is 0.8mm-1.2mm, outer diameter 1mm-2mm, length 90mm-110mm, electrode end pipe
It is made of PEBAX, polyurethane, block polyamide or nylon material；The outer diameter of double-hole tube is 1.6mm-4mm, length 30mm-
50mm, the diameter of the first lumen of double-hole tube are 0.75mm-0.85mm, and the diameter of the second lumen is 0.6mm-0.7mm, double-hole tube
It is made of PEBAX, polyurethane, block polyamide or nylon material；The outer diameter of changeover portion conduit is 1.6mm-4mm, and internal diameter is
1mm-3mm, length 5mm-25mm, changeover portion conduit are made of polyurethane, block polyamide or nylon material；Conduit pipe shaft
Internal diameter be 1mm-3mm, outer diameter 1.6mm-4mm, length 1100mm-1300mm, conduit pipe shaft is poly- using polyurethane, block
Amide or nylon material are made；The diameter of conducting wire is the copper wire of 0.1-0.2mm.
Controllable delineation shaped steel wire of the present invention is made of Nitinol.
Compared with prior art, the present invention the sensor being equipped in distal end of catheter, may be implemented the positioning to conduit, leads
The controllable circle of the helical structure of at least one loop of the in one plane spiral surrounding of pipe distal end is arranged on controllable circle
There are multiple ring electrodes, it can be improved the contact between conduit and heart, improve the ability to collect of signal, pass through the Computerized three-dimensional heart
Dirty Electrophysiological mapping technology can directly quickly carry out the three-dimensional imaging of the chambers of the heart to patient, complete three-dimensional modeling, clinically
The validity and operability of operation are considerably increased, operating time is saved.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is conduit pipe shaft structural schematic diagram after bending of the invention.
Fig. 3 is the structural schematic diagram that the present invention controllably encloses.
Fig. 4 is the schematic diagram of internal structure of electrode end pipe and double-hole tube of the present invention.
Fig. 5 is the internal structure partial enlarged view of electrode end pipe of the present invention and double-hole tube
Fig. 6 is the schematic diagram of internal structure of connector of the present invention Yu electrode end pipe
Fig. 7 is the schematic diagram of internal structure of handle apparatus of the present invention.
Fig. 8 is the cross-sectional view of conduit pipe shaft of the present invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the magnetic orientation Circumferential catheter conduit of the head end coiled spiral structure of belt sensor of the invention
The flexible conduit 2 of handle apparatus 1 and distal end including proximal end, the conduit 2 include leading set on 1 distal end of handle apparatus
There are two the double-hole tubes 4 of lumen for pipe pipe shaft 3, the flexible tool in 3 distal tip of conduit pipe shaft, in 4 distal end of double-hole tube
End is equipped with controllable circle 5, and the lumen of double-hole tube 4 is respectively the first lumen 41, the second lumen 42, and conduit 2 can be filled by handle
The double-hole tube 4 for setting 1 pair of distal end of catheter carries out adjustable bending, and the proximal end of conduit pipe shaft 3 is connect with the distal end of handle apparatus 1,
Connector 6 is equipped on the proximal end of handle apparatus 1；Controllable circle 5 includes controllable delineation shaped steel wire 51, and controllable shaped steel wire 51 of drawing a circle to approve is
The in one plane helical structure of at least one loop of spiral surrounding, which is plate-like, controllable to draw a circle to approve shaped steel wire 51
It is disposed on the same plane with the axis of conduit 2, controllable delineation shaped steel wire is successively coated with outside controllably delineation shaped steel wire 51
Outer tube 56 and electrode end pipe 54, at least provided with a ring electrode 52 on the circle body surface of electrode end pipe 54, in ring electrode 52
The conducting wire that passes through in the first lumen 41 of double-hole tube 4, conduit pipe shaft 3, handle apparatus 1 of inside connect with connector 6, it is described
Controllable delineation shaped steel wire 51 has a fixing end set on the movable end of distal medial and set on proximal lateral, movable end it be to be located at
At the helical structure center of the plate-like of controllable delineation shaped steel wire 51, and fixing end it be positioned at the proximal end of controllable delineation shaped steel wire 51
End.
As shown in Figure 3 and Figure 4, controllable circle 5 further includes set on the movable end end of the distal medial of controllable delineation shaped steel wire 51
Connector 53 on head and will controllable delineation shaped steel wire 51 proximal lateral fixing end end and double-hole tube 4 distal tip
The inner cavity connection of the changeover portion conduit 55 of connection, the inner cavity of electrode end pipe 54 and changeover portion conduit 55, changeover portion conduit 55 it is interior
Two lumen connection of chamber and double-hole tube 4, ring electrode 52 are provided with several, are respectively separated the circle body that electrode end pipe 54 is arranged in
On, the current potential of mapping can be made more uniform in this way, and the covering of ring electrode 52 is more comprehensively, for example, general normal ducts
Unit area can only cover 5 electrodes in heart, and the present invention equal unit area can cover 10 it is even more.
As shown in Figure 4 and Figure 5, bracing wire 7 is equipped in conduit pipe shaft 3,7 surface of bracing wire is coated with bracing wire outer tube 71, main mesh
Be to prevent conducting wire and bracing wire from generating interference, the distal tip of bracing wire 7 is through the second lumen 42, the changeover portion conduit 55 of double-hole tube 4
Inner cavity and the fixing end end of proximal end of inner cavity and controllable delineation shaped steel wire 51 of electrode end pipe 54 weld, lead between the two
The welding of riveting pipe 8 is crossed, riveting pipe 8 is set to 55 lumen lower part of changeover portion conduit, and 8 surface of riveting pipe is coated by riveting pipe-in-pipe 81, prevents riveting
8 surface of pipe and conducting wire, sensor 9 generate contact, and the proximal end of bracing wire 7 is connect with handle shape 1.It is equipped with and passes in changeover portion conduit 55
Sensor 9, first lumen 41, conduit pipe shaft 3 and handle apparatus 1 of the conducting wire of sensor 9 through changeover portion conduit 55, double-hole tube 4
It is connect with connector 6.
As shown in fig. 6, connector 53 and electrode end pipe 54 pass through the hierarchic structure and electrode end pipe on 53 proximal end of connector
The close grafting in 54 distal end is connected, equipped with connector cavity for the work of the distal medial of controllable delineation shaped steel wire 51 in connector 53
Moved end end is protruded into, and the controllable movable end end for drawing a circle to approve 51 distal medial of shaped steel wire polishes smooth processing, prevents damage connector
It is internal.
As shown in fig. 7, handle apparatus 1 includes the handle casing 11 with through-hole 12, through-hole 12 is arranged in handle casing 11
On axis, the handle cover 13 being threadedly coupled, the distal end Middle face of handle cover 13 are equipped in the distal tip of handle casing 11
Equipped with the handle cap bore 14 with 12 connection of through-hole, the distal end of the handle casing 11 is equipped with push rod 15, the proximal end of the push rod 15
It is inserted into through-hole 12 from handle cap bore 14, the handle 151 of one week protrusion is equipped on push rod 15, handle 151 divides push rod 15
For distal end bar portion 152, proximal stem portion 153, it is equipped in push rod 15 and pushing away through 15 distal end end face of push rod and proximal face
Rod through-hole 154, push rod through-hole 154 are arranged on the axis of push rod 15, and the proximal tips of conduit pipe shaft 3 are fixed on push rod through-hole
In the lumen of 154 distal ends；Guide groove 155 is equipped on the periphery wall of proximal stem portion 153, on the peripheral wall of the distal end of handle casing 11
It is equipped with the limit post holes 111 with 12 connection of through-hole with 155 position corresponding section of guide groove, limit post holes 111 has internal screw thread, limiting
The limit stud 16 being threadedly coupled with it is equipped in the post holes 111 of position, the lower end of limit stud 16 is protruded into guide groove 155, and spiral shell is limited
Column 16 is used to limit the shift position of push rod 15；The locking nut 17 of threaded connection is cased in distal end bar portion 152；The through-hole
Handle inner core 18 is equipped in 12 proximal end, the axis of handle inner core 18 is equipped with inner core through-hole 181, in the periphery of handle inner core 18
Wall is equipped with the first fixation with steel wire post holes 182 being connected to inner core through-hole 181, and the first fixation with steel wire post holes 182 is equipped with interior spiral shell
Line is equipped with the second fixation with steel wire post holes 112 on the proximal end peripheral wall of handle casing 11, is equipped in the second fixation with steel wire post holes 112
Fixation with steel wire column 19, fixation with steel wire column 19 are threadedly coupled with the first fixation with steel wire post holes 182, are set in the lower end of fixation with steel wire column 19
There is the steel wire positioning column being connected to after fixation with steel wire column 19 is fully screwed into the second fixation with steel wire post holes 112 with inner core through-hole 181
Through-hole 191, the proximal tips of the bracing wire 7 are through push rod through-hole 154,181 distal portions of inner core through-hole, steel wire positioning column through-hole
191 and 181 proximal part of inner core through-hole after, turn fixation with steel wire column 19, make steel wire positioning column through-hole 191 and inner core through-hole
181 dislocation, bracing wire 7 is fixed.
When pushing push rod 15, the bending degree (shown in Fig. 2) of double-hole tube 4 is adjusted, the bending direction of the double-hole tube 4 is edge
1 place plane of controllable circle is bent downwardly.Its cardinal principle is as follows:
Bracing wire steel wire 7 passes through the second lumen 42 of double-hole tube 4 due to being the eccentric orfice for deviateing 2 axle center of conduit, when bracing wire steel
After the head end and riveting pipe 8 of silk 7 are connected and fixed, after tail end is connected and fixed with handle inner core 18, the length of the Tensile in conduit of bracing wire 7
Degree is fixed.When pushing push rod 15, due to double-hole tube 4 be can be curved, the thrust of push rod 15 will lead to
Crossing bracing wire 7 forces double-hole tube 4 to eccentric curving, and the eccentricity of the second lumen 42 by controlling double-hole tube goes to realize
The bending degree of double-hole tube.
As shown in figure 8, the tube wall in conduit pipe shaft 3 has been embedded in stainless steel cloth 31.
The diameter of sensor of the invention 9 is 0.8mm-1mm；Length is 8mm-12mm, preferred electromagnetic sensor；Controllable circle
5 maximum outside diameter is 10mm-25mm, and the spacing between two neighboring loop is 1mm-6mm；Controllably delineation shaped steel wire 51 is preferably
Two or more loops, the controllable steel wire diameter for drawing a circle to approve shaped steel wire 51 is 0.2mm-0.4mm, using with elastic shape memory
Material, preferably Nitinol；The lumen diameter of controllable delineation shaped steel wire outer tube 56 is 0.3mm-0.5mm, and outer diameter is
0.5mm-0.7mm, material PEBAX, polyurethane, block polyamide or nylon material.The internal diameter of ring electrode 52 is 1.3mm-
1.8mm, outer diameter 1.35mm-1.85mm, width 1mm-2mm, the making material of ring electrode 52 are preferably platinumiridio or Huang
Gold；54 internal diameter of electrode end pipe is 0.8mm-1.2mm, outer diameter 1mm-2mm, length 90mm-110mm, using PEBAX, poly- ammonia
Ester, block polyamide or nylon material；The outer diameter of double-hole tube 4 is 1.6mm-4mm, and outer diameter is preferably 2mm-3mm, and length is
30mm-50mm, the length of double-hole tube 4 can determine the length of double-hole tube 4, diplopore according to the shape of the helical buckling of controllable circle 5
The diameter of first lumen of pipe 4 is 0.75mm to 0.85mm, and the diameter of the second lumen is 0.6mm-0.7mm, using PEBAX, is gathered
Urethane, block polyamide or nylon material；The outer diameter of changeover portion conduit 55 is 1.6mm-4mm, and outer diameter is preferably 2mm-3mm, interior
Diameter is 1mm-3mm, preferably 1mm-2mm, length 5mm-25mm, preferably 10mm-20mm, the making material of changeover portion conduit 55
It is polyurethane, block polyamide or nylon；The internal diameter of conduit pipe shaft 3 is 1mm-3mm, and internal diameter is preferably 2mm-3mm, and outer diameter is
1.6mm-4mm, outer diameter are preferably 2mm-3mm, length 1100mm-1300mm, the making material of conduit pipe shaft 3 be polyurethane,
Block polyamide or nylon；The diameter of conducting wire is the copper wire of 0.1-0.2mm.
Application method of the invention: the head end of belt sensor is had to the magnetic orientation Circumferential catheter of coiled spiral structure
Conduit pushes in the heart chambers of the heart from femoral artery, and controlling the bending of double-hole tube 4 by handle apparatus 1 makes above the controllable circle 5 in distal end
Ring electrode 52 reclines with chambers of the heart inner wall, obtains each point information, feeds back to three-dimensional mapping system modelling.The present invention and existing skill
Art is compared, and head end has the controllable circle of the in one plane helical structure of at least one loop of spiral surrounding, is possessed above multiple
Ring electrode 52 is placed with sensor 9 inside changeover portion conduit 55, three-dimensional mapping system can be cooperated to fast implement cardiac three-dimensional solution
The mapping and modeling of structure are cutd open, and realizes conduit positioning and navigation.
The present invention increases the mapping area and signal acquisition quantity of each catheter manipulation on the basis of existing technology, and
On traditional map mode, so that the current potential of mapping is more uniform, the more comprehensive such as of the invention conduit of covering increases interior
The distal end of catheter end of the mapping of circle, the prior art is individual pen cyclic structure, and compared with existing cyclic structure, the present invention has more
More loops goes to place ring electrode, to achieve the purpose that mapping.Secondly, the plate-like of this in one plane spiral surrounding
The design of helical structure can preferably contact the inner wall of heart, and not allow to easily cause the overlapping of signal, and with traditional hand
The method that art operates mapping catheter is similar, is easily understood.The increase of the mapping current potential operated every time, the data of modeling are just more detailed
Carefully, the accuracy of modeling is considerably increased, meanwhile, the number of doctor's operation can be also reduced, operating time is saved；From conductor housing
From the point of view of the helical structure for holding design, compared with conventional circular structure, increase the contact area of conduit and wall of the heart, meanwhile, spiral shell
Rotation structure can make the more uniform of the Potential distribution of conduit mapping, because standoff distance is all uniform between ring electrode.Its
Secondary, in one plane the helical structure of spiral surrounding can help conduit preferably to take in sheath in the course of surgery, and subtract
Resistance between few conduit and sheath, facilitates surgical procedure, keeps operation more safe and efficient.
Claims (9)
1. a kind of head end of belt sensor has the magnetic orientation Circumferential catheter conduit of coiled spiral structure, the hand including proximal end
The flexible conduit (2) of handle device (1) and distal end is equipped with connector (6) on the proximal end of handle apparatus (1), feature
It is: is fixedly connected with controllable circle (5) in the distal tip of the conduit (2), controllable enclose (5) include controllable delineation shaped steel wire
(51), the helical structure that shaped steel wire (51) are in one plane at least one loop of spiral surrounding, the spiral knot are controllably drawn a circle to approve
Structure is plate-like, controllably draws a circle to approve shaped steel wire (51) and the axis of conduit (2) is disposed on the same plane, in controllably delineation shaped steel wire
(51) external to be successively coated with controllable delineation shaped steel wire outer tube (56) and electrode end pipe (54), the circle body in electrode end pipe (54)
At least provided with a ring electrode (52) on surface, passed through in conduit (2), handle apparatus (1) in the inside of ring electrode (52)
Conducting wire is connect with connector (6), is equipped with sensor (9) in the controllably proximal end of circle (5), the conducting wire of sensor (9) is through conduit (2)
And handle apparatus (1) is connect with connector (6)；Bracing wire (7) are equipped in conduit (2), the distal tip of bracing wire (7) is through electrode tip
The fixing end end of the inner cavity and controllable delineation shaped steel wire (51) of managing (54) is welded, and the proximal end and handle apparatus (1) of bracing wire (7) are even
It connects；The controllable circle (5) further includes connector (53) and connection on controllable delineation shaped steel wire (51) movable end end
The fixing end end of controllable delineation shaped steel wire (51) and the changeover portion conduit (55) of double-hole tube (4) distal tip, electrode end pipe
(54) the inner cavity connection of inner cavity and changeover portion conduit (55), sensor (9) are set in changeover portion conduit (55)；The connector
(53) pass through the close grafting in distal end of hierarchic structure and electrode end pipe (54) on connector (53) proximal end with electrode end pipe (54)
It is connected, the movable end end in connector (53) equipped with connector cavity for the distal medial of controllable delineation shaped steel wire (51) is stretched
Enter, the movable end end for controllably drawing a circle to approve shaped steel wire (51) distal medial polishes smooth processing.
2. there is the head end of belt sensor according to claim 1 the magnetic orientation Circumferential catheter of coiled spiral structure to lead
Pipe, it is characterised in that: the conduit (2) includes set on the conduit pipe shaft (3) of handle apparatus (1) distal end, set on conduit pipe shaft (3)
Flexible double-hole tube (4) in distal tip, the double-hole tube (4) tool is there are two lumen, respectively the first lumen (41), the
Two lumens (42), the inner cavity of changeover portion conduit (55) and the first lumen (41), the second lumen (42) connection of double-hole tube (4)；Ring
The inside of electrode (52) pass through conducting wire in first lumen (41) of double-hole tube (4), conduit pipe shaft (3), handle apparatus (1) with
Connector (6) connection；The inner cavity of second lumen (42) of the distal tip of bracing wire (7) through double-hole tube (4), changeover portion conduit (55)
And the fixing end end behind the inner cavity of electrode end pipe (54) with controllable delineation shaped steel wire (51) is welded.
3. the magnetic orientation ring-type mapping electricity that the head end of belt sensor according to claim 1 or 2 has coiled spiral structure
Pole conduit, it is characterised in that: the ring electrode (52) is arranged at intervals on the circle body of electrode end pipe (54).
4. there is the head end of belt sensor according to claim 2 the magnetic orientation Circumferential catheter of coiled spiral structure to lead
Pipe, it is characterised in that: the tube wall of the conduit pipe shaft (3) has been embedded in stainless steel cloth (31).
5. there is the head end of belt sensor according to claim 4 the magnetic orientation Circumferential catheter of coiled spiral structure to lead
Pipe, it is characterised in that: the handle apparatus (1) includes the handle casing (11) with through-hole (12), and through-hole (12) is arranged in hand
On handle shell (11) axis, the handle cover (13) being threadedly coupled, handle cover are equipped in the distal tip of handle casing (11)
(13) distal end Middle face is equipped with the handle cap bore (14) with through-hole (12) connection, and the distal end of the handle casing (11) is equipped with
Push rod (15), the proximal end of the push rod (15) are equipped with one week on push rod (15) out of handle cap bore (14) insertion through-hole (12)
The handle (151) of protrusion, push rod (15) is divided into distal end bar portion (152), proximal stem portion (153) by handle (151), in push rod
(15) it is equipped in and the push rod through-hole (154) through push rod (15) distal end end face and proximal face, push rod through-hole (154) setting
On the axis of push rod (15), the proximal tips of conduit pipe shaft (3) are fixed in the lumen of push rod through-hole (154) distal end；Close
The periphery wall in side pole portion (153) be equipped with guide groove (155), on the peripheral wall of the distal end of handle casing (11) with guide groove (155) position
Corresponding section is set equipped with the limit post holes (111) with through-hole (12) connection, limit post holes (111) has internal screw thread, in limited post
The limit stud (16) being threadedly coupled with it is equipped in hole (111), the lower end of limit stud (16) is protruded into guide groove (155), limit
Position stud (16) is used to limit the shift position of push rod (15)；The locking nut of threaded connection is cased on distal end bar portion (152)
(17)；Handle inner core (18) are equipped in the proximal end of the through-hole (12), the axis of handle inner core (18) is equipped with inner core through-hole
(181), the first fixation with steel wire post holes (182) being connected to inner core through-hole (181) is equipped on the periphery wall of handle inner core (18),
First fixation with steel wire post holes (182) is equipped with internal screw thread, and the second fixation with steel wire is equipped on the proximal end peripheral wall of handle casing (11)
Post holes (112), the second fixation with steel wire post holes (112) is interior to be equipped with fixation with steel wire column (19), fixation with steel wire column (19) and the first steel wire
Fixing post hole (182) is threadedly coupled, and is equipped in the lower end of fixation with steel wire column (19) when fixation with steel wire column (19) are fully screwed into second
The steel wire positioning column through-hole (191) that is connected to inner core through-hole (181) after in fixation with steel wire post holes (112), the bracing wire (7) it is close
Hold end through push rod through-hole (154), inner core through-hole (181) distal portions, steel wire positioning column through-hole (191) and inner core through-hole
(181) after proximal part, fixation with steel wire column (19) are turned, steel wire positioning column through-hole (191) and inner core through-hole (181) is made to misplace,
Bracing wire (7) are fixed.
6. there is the head end of belt sensor according to claim 5 the magnetic orientation Circumferential catheter of coiled spiral structure to lead
Pipe, it is characterised in that: pass through between the distal tip of the bracing wire (7) and the fixing end end of controllable delineation shaped steel wire (51)
Riveting pipe (8) welding.
7. there is the head end of belt sensor according to claim 6 the magnetic orientation Circumferential catheter of coiled spiral structure to lead
Pipe, it is characterised in that: riveting pipe (8) surface is coated with riveting pipe-in-pipe (81).
8. there is the head end of belt sensor according to claim 7 the magnetic orientation Circumferential catheter of coiled spiral structure to lead
Pipe, it is characterised in that: the diameter of the sensor (9) is 0.8mm-1mm；Length is 8mm-12mm, and the sensor (9) is electricity
Magnetic Sensor；The maximum outside diameter of controllable circle (5) is 10mm-25mm, and the spacing between two neighboring loop is 1mm-6mm；Controllably
The loop that shaped steel wire (51) are equipped with two or more is drawn a circle to approve, the steel wire diameter for controllably drawing a circle to approve shaped steel wire (51) is 0.2mm-0.4mm, can
Control delineation shaped steel wire (51) is made of the material with elastic shape memory；The lumen of controllable delineation shaped steel wire outer tube (56)
Internal diameter is 0.3mm-0.5mm, outer diameter 0.5mm-0.7mm, and controllable draw a circle to approve shaped steel wire outer tube (56) use PEBAX, polyurethane
Or block polyamide is made；The internal diameter of ring electrode (52) is 1.3mm-1.8mm, outer diameter 1.35mm-1.85mm, width 1mm-
2mm, ring electrode (52) are made of platinumiridio or gold；Electrode end pipe (54) internal diameter is 0.8mm-1.2mm, outer diameter 1mm-
2mm, length 90mm-110mm, electrode end pipe (54) are made of PEBAX, polyurethane or block polyamide；Double-hole tube (4)
Outer diameter is 1.6mm-4mm, length 30mm-50mm, and the diameter of the first lumen of double-hole tube (4) is 0.75mm-0.85mm, second
The diameter of lumen is 0.6mm-0.7mm, and double-hole tube (4) is made of PEBAX, polyurethane or block polyamide；Changeover portion conduit
(55) outer diameter is 1.6mm-4mm, internal diameter 1mm-3mm, length 5mm-25mm, changeover portion conduit (55) using polyurethane or
Block polyamide is made；The internal diameter of conduit pipe shaft (3) is 1mm-3mm, outer diameter 1.6mm-4mm, length 1100mm-
1300mm, conduit pipe shaft (3) are made of polyurethane or block polyamide；The diameter of conducting wire is the copper wire of 0.1-0.2mm.
9. there is the head end of belt sensor according to claim 8 the magnetic orientation Circumferential catheter of coiled spiral structure to lead
Pipe, it is characterised in that: the controllable delineation shaped steel wire (51) is made of Nitinol.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN105919589A CN105919589A (en) | 2016-09-07 |
| CN105919589B true CN105919589B (en) | 2018-12-18 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN109717949B (en) * | 2019-01-04 | 2021-11-19 | 湖南埃普特医疗器械有限公司 | Detection device and interventional therapy instrument |
| CN110251123B (en) * | 2019-07-09 | 2024-05-24 | 深圳惠泰医疗器械股份有限公司 | Control mechanism capable of simultaneously controlling two bending shapes of electrode catheter head end |
| 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 |
| CN214632164U (en) * | 2020-10-29 | 2021-11-09 | 深圳市赛诺思医疗科技有限公司 | Electrophysiology mapping catheter device |
| 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 |
| CN116965908B (en) * | 2023-06-27 | 2024-04-09 | 上海玮启医疗器械有限公司 | Intracardiac mapping electrode catheter |
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| US20010007070A1 (en) * | 1999-04-05 | 2001-07-05 | Medtronic, Inc. | Ablation catheter assembly and method for isolating a pulmonary vein |
| US6711428B2 (en) * | 2000-01-27 | 2004-03-23 | Biosense Webster, Inc. | Catheter having mapping assembly |
| JP2008531135A (en) * | 2005-03-02 | 2008-08-14 | カソリック リミテッド | Heat treatment catheter |
| JP4027411B1 (en) * | 2007-03-29 | 2007-12-26 | 日本ライフライン株式会社 | Electrode catheter |
| CN102579031B (en) * | 2012-01-19 | 2014-10-01 | 洪浪 | Right ventricular outflow tract mapping and angiographic catheter and preparation method of angiographic catheter |
| CN102551705B (en) * | 2012-01-19 | 2014-01-29 | 赖珩莉 | Auricular tachycardia mapping catheter and preparation method thereof |
| US20140200639A1 (en) * | 2013-01-16 | 2014-07-17 | Advanced Neuromodulation Systems, Inc. | Self-expanding neurostimulation leads having broad multi-electrode arrays |
| CN104434307B (en) * | 2014-12-19 | 2017-01-25 | 四川锦江电子科技有限公司 | Mapping catheter |
| CN205988285U (en) * | 2016-05-27 | 2017-03-01 | 深圳市惠泰医疗器械有限公司 | The head end of belt sensor has the magnetic orientation Circumferential catheter conduit of coiled spiral structure |
| 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 |
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Address after: 518110 601, building B, Tongfang information port, No. 11, Langshan Road, songpingshan community, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen huitai Medical Equipment Co., Ltd Address before: 518110 Guangdong province Shenzhen city Longhua District Guanlan Street Road Zhang Qi Guanlan with rich industrial park A7 Building 2 floor Patentee before: Shenzhen Huitai Medical Instrument Co., Ltd. |
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