CN110152191A - Without conducting wire pacemaker - Google Patents
Without conducting wire pacemaker Download PDFInfo
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- CN110152191A CN110152191A CN201910430451.1A CN201910430451A CN110152191A CN 110152191 A CN110152191 A CN 110152191A CN 201910430451 A CN201910430451 A CN 201910430451A CN 110152191 A CN110152191 A CN 110152191A
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- pacemaker
- conducting wire
- ontology
- extension component
- head
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
- A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
- A61N1/36514—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure
- A61N1/36578—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure controlled by mechanical motion of the heart wall, e.g. measured by an accelerometer or microphone
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- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
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- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Physiology (AREA)
- Hematology (AREA)
- Electrotherapy Devices (AREA)
Abstract
The present invention provides a kind of no conducting wire pacemaker comprising pacemaker ontology, extension component and head-end segment.The pacemaker ontology is to pace or perceive the first object；One end of the extension component is electrically connected with the pacemaker ontology；The head-end segment is electrically connected with the other end of the extension component；Wherein, the pacemaker ontology is also to be paced or be perceived the second object by the head-end segment.Configured in this way, pacemaker ontology perceives point as first pace-making, and head-end segment is electrically connected by extension component with pacemaker ontology, that is, forms second pace-making and perceive point.Compared to existing no conducting wire pacemaker, the problems such as atrium can be paced or be perceived with ventricle respectively, can be reduced or even avoid chamber asynchronous, indication range is wider.In addition, the setting of extension component, is also suitable for just to lead to replace pacemaker in developmental children because cardiac growth becomes larger, reducing the pain and financial burden of patient.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of no conducting wire pacemaker.
Background technique
Pacemaker is that one kind is implanted in intracorporal electronic therapeutic instrument, provides electric pulse by impulse generator, leads to
The conduction of lead electrode, and then the cardiac muscle that stimulating electrode is contacted are crossed, heart excitement is made and is shunk, to reach treatment due to certain
The purpose of a little arrhythmia caused heart dysfunctions.But for it is traditional have the pacemaker of conducting wire for, on the one hand
Need to make pouch, another aspect conducting wire is applied in vein blood vessel for a long time, and relevant complication rate is high, to the life of patient
Health care belt is ordered to adversely affect.And battery, loop and pacing electrode are integrated into and can be all implanted into the chambers of the heart without conducting wire pacemaker
" pocket capsule ", it is only necessary to percutaneous puncture microcatheter technology implantation, have it is easy to operate, convenient, wound is small, be not necessarily to surgical operation system
Make pouch, do not influence patient's appearance, the advantages that related complication caused by no pacemaker pouch and conducting wire, therefore, clinically
It is widely used.
However, existing no conducting wire pacemaker is typically mounted on apex, and only one pace-making perception point, function list
One, indication application range is small.
Summary of the invention
The purpose of the present invention is to provide a kind of no conducting wire pacemaker, with solve existing no conducting wire pacemaker only one
The problem of pace-making perception point.
In order to solve the above technical problems, the present invention provides a kind of no conducting wire pacemakers comprising:
Pacemaker ontology, to pace or perceive the first object；
Extension component, one end are electrically connected with the pacemaker ontology；And
Head-end segment is electrically connected with the other end of the extension component；
Wherein, the pacemaker ontology is also to be paced or be perceived the second object by the head-end segment.
Optionally, the head-end segment includes fixing piece, and the fixing piece is described the extension component to be fixed to
Second object.
Optionally, the fixing piece is in hook-shaped, and the free end of the fixing piece is equipped with needle portion, and the needle portion is to be inserted into
State the first predetermined position of the second object.
Optionally, the needle portion is equipped with non-slip groove.
Optionally, the non-slip groove includes at least one cricoid groove, and the groove is circumferentially disposed at the needle portion.
Optionally, the head-end segment further includes shank, and the shank is clamped with for external conveyer.
Optionally, the shank has positive stop lug boss, and the positive stop lug boss is to limit the conveyer.
Optionally, the extension component is flexibility.
Optionally, the extension component includes several conductive filaments and the insulating sleeve that is coated on outside the conductive filament.
Optionally, the pacemaker ontology includes fixing seat, and the fixing seat is pre- to second with first object
Positioning, which is set, mutually to be fixed, and the fixing seat is electric conductor, is electrically connected with the internal circuit of the pacemaker ontology.
Optionally, the fixing seat includes the fixed pin extended spirally, and the fixed pin is to be inserted into first object
The second predetermined position.
Optionally, the fixing seat includes more than two fixed pins, more than two fixed pin spirals in the same direction
Extend.
Optionally, the length that the fixed pin extends spirally is less than a circle.
Optionally, the helix angle of the fixed pin is 5~20 °.
Optionally, the pacemaker ontology further includes adapter, and the adapter is to connect the pacemaker ontology
Internal circuit and the extension component；Sealing connects between the adapter and the extension component and the pacemaker ontology
It connects.
In conclusion no conducting wire pacemaker provided by the invention includes pacemaker ontology, extension component and head-end segment.Institute
Pacemaker ontology is stated to pace or perceive the first object；One end of the extension component is electrically connected with the pacemaker ontology；
The head-end segment is electrically connected with the other end of the extension component；Wherein, the pacemaker ontology is also to pass through the head
The second object of end pieces pace-making or perception.Configured in this way, pacemaker ontology perceives point as first pace-making, and head-end segment passes through
Extension component is electrically connected with pacemaker ontology, that is, is formed second pace-making and perceived point.First pace-making perception point such as may be provided at
Ventricle, second pace-making perception point such as may be provided at atrium, compare existing no conducting wire pacemaker, can be respectively to atrium and ventricle
The problems such as being paced or perceived, being can be reduced or even avoid chamber asynchronous, indication range are wider.In addition, extension component
Setting is also suitable for just to lead to replace pacemaker in developmental children because cardiac growth becomes larger, reducing patient's
Pain and financial burden.
Detailed description of the invention
It will be understood by those skilled in the art that the attached drawing provided is for a better understanding of the present invention, without to this
The range of invention constitutes any restriction.Wherein:
Fig. 1 is the schematic diagram without conducting wire pacemaker that one embodiment of the invention provides；
Fig. 2 is the schematic diagram for the extension component that one embodiment of the invention provides；
Fig. 3 is the schematic diagram for the head-end segment that one embodiment of the invention provides；
Fig. 4 is the schematic diagram for the adapter that one embodiment of the invention provides；
Fig. 5 is the schematic diagram for the fixing seat that one embodiment of the invention provides；
Fig. 6 is schematic diagram when using without conducting wire pacemaker that one embodiment of the invention provides.
In attached drawing:
1- pacemaker ontology；11- adapter；111- first shell；112- feed-through insulators；113- feedthrough conductor；In 12-
Portion's circuit；13- second shell；14- fixing seat；141- fixed pin；15- clamping part；
2- extension component；21- conductive filament；22- insulating sleeve；
3- head-end segment；31- needle portion；311- non-slip groove；32- shank；321- positive stop lug boss；
41- right ventricle；The atrium dextrum 42-；43- superior vena cava；The apical region of heart 44-.
Specific embodiment
To keep the purpose of the present invention, advantages and features clearer, below in conjunction with the drawings and specific embodiments to the present invention
It is described in further detail.It should be noted that attached drawing is all made of very simplified form and is not drawn on scale, only to side
Just, the purpose of the embodiment of the present invention is lucidly aided in illustrating.In addition, the structure that attached drawing is shown is often one of practical structures
Point.Particularly, the emphasis that each attached drawing needs to show is different, uses different ratios sometimes.
As used in this specification and in the appended claims, singular "a", "an" and "the" packet
Plural reference is included, in addition in addition non-content explicitly points out.As used in the specification and the appended claims, term
"or" be usually carried out with including the meaning of "and/or" using, in addition in addition non-content explicitly points out.
Core of the invention thought is to provide a kind of no conducting wire pacemaker comprising pacemaker ontology, extension component with
Head-end segment.The pacemaker ontology is to pace or perceive the first object；One end of the extension component and the pacemaker
Ontology electrical connection；The head-end segment is electrically connected with the other end of the extension component；Wherein, the pacemaker ontology also to
The second object is paced or perceived by the head-end segment.Configured in this way, pacemaker ontology perceives point, head as first pace-making
End pieces are electrically connected by extension component with pacemaker ontology, that is, are formed second pace-making and perceived point.First pace-making perceives point
It such as may be provided at ventricle, second pace-making perception point such as may be provided at atrium, compare existing no conducting wire pacemaker, can be right respectively
The problems such as atrium is paced or perceived with ventricle, be can be reduced or even is avoided chamber asynchronous, indication range is wider.In addition,
The setting of extension component is also suitable for just to lead to replace pacemaker because cardiac growth becomes larger in developmental children,
Reduce the pain and financial burden of patient.
It is described below with reference to attached drawing.
Fig. 1 is please referred to Fig. 6, wherein Fig. 1 is the schematic diagram without conducting wire pacemaker that one embodiment of the invention provides, Fig. 2
It is the schematic diagram for the extension component that one embodiment of the invention provides, Fig. 3 is showing for the head-end segment that one embodiment of the invention provides
It is intended to, Fig. 4 is the schematic diagram for the adapter that one embodiment of the invention provides, and Fig. 5 is the fixing seat that one embodiment of the invention provides
Schematic diagram, Fig. 6 be one embodiment of the invention provide without conducting wire pacemaker use when schematic diagram.
As shown in Figure 1, one embodiment of the invention provides a kind of no conducting wire pacemaker comprising: pacemaker ontology 1 extends
Component 2 and head-end segment 3.For the pacemaker ontology 1 to pace or perceive the first object, which such as can be ventricle；
One end of the extension component 2 is electrically connected with the pacemaker ontology 1；The head-end segment 3 is another with the extension component 2
End electrical connection；Wherein, the pacemaker ontology 1 by the head-end segment 3 also to pace or perceive the second object, this second
Object such as can be atrium.Referring to FIG. 6, its for no conducting wire pacemaker provided in this embodiment for being set to when heart
Preferable example, wherein pacemaker ontology 1 is mainly set to right ventricle, and extension component 2 is after the extraction of pacemaker ontology 1, via
Tricuspid valve is worn to atrium dextrum, and head-end segment 3 is mainly set to superior vena cava and atrium dextrum transition region.Configured in this way, pacemaker sheet
Body 1 perceives point as first pace-making, mainly to pace or perceive ventricle；Head-end segment 3 passes through extension component 2 and pacemaker
Ontology 1 is electrically connected, and head-end segment is fixed on the second object and forms second pace-making perception point, mainly to pace or perceive the heart
Room.Compared to existing no conducting wire pacemaker, can atrium be paced or be perceived with ventricle respectively, can be reduced or even avoid chamber
The problems such as asynchronous, indication range are wider.In addition, the setting of extension component, is also suitable for just in developmental children, it will not
Lead to replace pacemaker because cardiac growth becomes larger, reduces the pain and financial burden of patient.
Referring to FIG. 2, and combine Fig. 6, further, the head-end segment 3 include fixing piece, the fixing piece to will
The extension component 2 is fixed to second object.It is preferred that the fixing piece, in hook-shaped, the free end of the fixing piece is equipped with
Needle portion 31, first predetermined position of the needle portion 31 to be inserted into second object.Needle portion 31 has a tip, the tip energy
It is enough pierced into the first predetermined position (tissue of such as heart), head-end segment 3 is fixed on to the first predetermined position of heart.This
In, the second object refers mainly to atrium dextrum region, and the first predetermined position of the second object can be such as superior vena cava 43 and atrium dextrum 42
Transition region, for another example can for superior vena cava 43 at sinoatrial node.Needle portion 31 is configured as being easy the second object of insertion, when needle portion
31 when being inserted in the region, has preferable pace-making and perceived effect, and be not easy to puncture the tissue of heart.Preferably, the needle
Portion 31 is equipped with non-slip groove 311, and non-slip groove 311 such as may include at least one cricoid groove, and the groove is circumferentially disposed at institute
State needle portion 31.If the non-slip groove includes more than two grooves, more than two groove arranged for interval.Non-slip groove 311
Setting can prevent head-end segment 3 from deviating from from the first predetermined position.Preferably, stay hook is curved form, with preferably solid
Due to the first predetermined position.It should be understood that in the present embodiment, the bending angle of stay hook is not limited to as shown in the figure, head-end segment 3
It is also not necessarily limited to only include a stay hook, several stay hooks can be set as needed in those skilled in the art.Stay hook is preferred
It is made of corrosion resistant metal material, also can be used as electrode simultaneously for fixing, to realize auricular pacemaking or sense
Know.
With continued reference to FIG. 2, the head-end segment 3 further includes shank 32, the shank 32 is with for external conveyer
Clamping.Preferably, the shank 32 has positive stop lug boss 321, and the positive stop lug boss 321 is to limit the conveyer.Shank
32 such as can be a cylindrical body, the disc for the periphery that positive stop lug boss 321 such as can be raised in shank 32 for one, shank 32 and limit convex
Platform 321 can be coaxial arrangement.Configured in this way, external conveyer is when pushing and pulling head-end segment 3, the limit through positive stop lug boss 321
Without loosening.Compared to existing no conducting wire pacemaker, no conducting wire pacemaker provided in this embodiment is easier when removing, i.e.,
Make easily remove after being implanted into the several years.
Referring to FIG. 3, the extension component 2 is flexibility, it is preferred that extension component 2 can be conductive, the extension component 2
Including several conductive filaments 21 and the insulating sleeve 22 being coated on outside the conductive filament 21.In practice, extension component 2 be it is soft and
Loose conducting wire, with certain extensibility, in developmental children, will not just causing because cardiac growth becomes larger
Pacemaker is replaced, the pain and financial burden of patient are reduced.Conductive filament 21 is preferably twisted by strands of metal wire, is so set
It sets, even if the overall performance for thering is one metal wire fracture to nor affect on conductive filament 21.In general, being traditionally used for implantation patient's body
Interior bipolar electrode conducting wire is thicker, and general diameter is 2 millimeters, and in order to achieve the purpose that ventricular pacemaking, traditional bipolar electrode
Conducting wire needs to penetrate through tricuspid valve, has a certain impact to tricuspid valve closure, some patients result even in tricuspid valve closure not
Entirely, myocardial blood flows back into atrium.And in the present embodiment, since extension component 2 is without pass through blood vessel, twisted wire can be used
Structure and relatively hard thinner insulating sleeve 22.For example, conductive filament 21 can be in the state of spring like coiled coil, to mention
High flexibility.The relatively traditional bipolar electrode conducting wire of the outer diameter of extension component 2 is thinner, if the outer diameter of extension component 2 can be 0.8mm, by
This, extension component 2 is arranged across tricuspid valve, can be without influence on the closure of tricuspid valve.In addition, relative to traditional implantable electrode
21 tensile strength of conductive filament of conducting wire, the present embodiment is higher, flexible stronger, therefore reliability is also higher.Preferably, the conduction
Silk 21 is made of MP35N alloy material, and MP35N alloy material is a kind of nickel cobalt chrome molybdenum of no magnetic, has unique superelevation
Tensile strength, good ductility and toughness and extraordinary corrosion resistant material.
The setting of insulating sleeve 22 then keeps apart conductive filament 21 with heart tissue, and conductive filament 21 is avoided to connect with heart tissue
Touching is known to avoid accidentally pace-making or false sense is generated to heart other than predetermined position.1 electricity of one end and pacemaker ontology of conductive filament 21
Connection, the other end can then be realized with needle portion 31 by the shank 32 of head-end segment 3 and be electrically connected.
Referring to FIG. 4, the pacemaker ontology 1 further includes adapter 11, the adapter 11 is to connect the pace-making
The internal circuit 12 of device ontology 1 and the extension component 2；The adapter 11 and the extension component 2 and the pacemaker sheet
It is tightly connected between body 1.In an exemplary embodiment, adapter 11 such as can be a feedthrough, and the feedthrough includes the
One shell 111, feed-through insulators 112 and feedthrough conductor 113, the feedthrough conductor 113 are worn by the feed-through insulators 112
In the first shell 111；One end of the feedthrough conductor 113 and the internal circuit 12 of the pacemaker ontology 1 are electrically connected
It connects, the other end is electrically connected with the extension component 2.Preferably, one end of the feedthrough conductor 113 and the pacemaker ontology 1
Internal circuit 12 weld, the other end and the extension component 2 weld, and mainly weld with the conductive filament 21 of extension component 2.Switching
The effect of part 11 is the internal circuit 12 and extension component 2 of connection pacemaker ontology 1, and pacemaker ontology 1 is passed through extension
Component 2 is electrically connected with the realization of head-end segment 3.It is connected to it since head-end segment 3 is mainly used for pace-making or perception to atrium
Electric conductor should be avoided to be in contact with ventricle, is known to avoid accidentally pace-making or false sense.Therefore, feedthrough conductor 113 is exhausted by feedthrough
Edge body 112 is connect with first shell 111.In practice, feedthrough conductor 113 may include one or more wire, feedthrough insulation
Body 112 is a cylinder with through hole, and wire is arranged in the through hole of feed-through insulators 112, and then feed-through insulators
112 are arranged in the first shell 111 of tubular.In this way, feedthrough conductor 113 is electrically insulated with first shell 111.Further, extend
It is connected and sealed between component 2 and the pacemaker ontology 1 by adapter 11, can guarantee feedthrough conductor 113 and heart group
It knits and does not generate contact, to effectively avoid the electric signal transmitted between extension component 2 and the pacemaker ontology 1 and heart group
Knit contact；Furthermore it is connected and sealed between extension component 2 and the pacemaker ontology 1 by adapter 11 and is also avoided that body fluid
The inside of no conducting wire pacemaker is not entered.
Further, the pacemaker ontology 1 further includes second shell 13, the second shell 13 and the first shell
111 connections, to be installed with internal circuit 12.Second shell 13 is preferably corrosion resistant metal shell, can be used as electrode, to realize
Ventricular pacemaking or perception.Second shell 13 such as can be cylinder, and one end is installed with fixing seat 14, and the other end is realized by adapter 11
Sealing, to protect the internal circuit 12 being located in inside second shell 13.Specifically, internal circuit 12 can be set, there are two electrodes to connect
Contact perceives the electrode of point to connect two different pace-makings respectively.Wherein, first electrode connection points and feedthrough conductor
113 welding, internal circuit 12 pass sequentially through feedthrough conductor 113, the conductive filament 21 of extension component 2, shank 32 and needle portion 31, real
The pace-making in existing atrium or perception.Second electrode connection points is electrically connected pace-making or perception, it can be achieved that ventricle with second shell 13.
Optionally, first shell 111 can also be that corrosion resistant metal shell, first shell 111 and second shell 13 pass through connection realization etc.
Current potential, i.e. first shell 111 are also electrically connected with second electrode connection points realization, first shell 111 and second shell 13
As a part for the electrode for realizing ventricular pacemaking or perception, to expand the contact area of electrode and heart tissue.
Referring to FIG. 5, and combine Fig. 6, the pacemaker ontology 1 include fixing seat 14, the fixing seat 14 to institute
The second predetermined position for stating the first object is mutually fixed.Preferably, the fixing seat 14 includes the fixed pin 141 extended spirally, institute
State second predetermined position of the fixed pin 141 to be inserted into first object.Here, the second predetermined position of the first object, such as
It can be the apical region of heart 44 of right ventricle 41.When the rotation of 14 relative heart tissue of fixing seat, fixed pin 141 can screw in cardiac muscular tissue simultaneously
It is fixed, that is, it may make pacemaker ontology 1 to be fixed in cardiac muscular tissue, be fixed conveniently.It is furthermore preferred that fixing seat 14 include two with
On fixed pin 141, more than two fixed pins 141 extend spirally in the same direction.In an exemplary embodiment, Gu
Reservation 14 be set to pacemaker ontology 1 far from be equipped with extension component 2 one end, fixing seat 14 include two fixed pins 141, two
Fixed pin 141 is centrosymmetric distribution about the axis of pacemaker ontology 1, fixation when being used to be inserted into cardiac muscular tissue, can
It leans on.It is preferred that the length that fixed pin 141 extends spirally is less than a circle, helix angle (the i.e. extension of fixed pin 141 of fixed pin 141
The angle in direction and the end face of pacemaker ontology 1) it is 5~20 °, configured in this way, when fixed pin 141 is in the thickness of insertion cardiac muscular tissue
It spends in lesser situation, self-lock ability is good, good fixing effect, and does not allow to easily cause myocardial perforation.In addition, due to fixed pin 141
Helix angle it is limited, fixed pin 141 be inserted into cardiac muscular tissue thickness it is smaller, need take out without conducting wire pacemaker when, only need
Reversed (i.e. with the contrary direction of fixed pin 141 extended spirally) rotation pacemaker ontology 1 can be taken off no conducting wire
The process of pacemaker, taking-up is more convenient.Preferably, fixing seat 14 is electric conductor, can be made of corrosion resistant metal material.Gu
Reservation 14 is electrically connected with the internal circuit 12 of pacemaker ontology 1, is such as electrically connected with second electrode connection points of internal circuit 12,
So set, fixing seat 14 and second shell 13 realize equipotential, fixing seat 14 can it is for fixing simultaneously, also can be used as
A part of electrode realizes ventricular pacemaking or perception.
Preferably, the pacemaker ontology 1 further includes clamping part 15, and the clamping part 15 is pressed from both sides with for external conveyer
It holds.Since the fixation of fixing seat 14 needs the entire pacemaker ontology 1 of turn, so can be in the second shell 13 of pacemaker ontology 1
Upper setting clamping part 15.Clamping part 15 such as can be outer-hexagonal shape, and shape applies torsion convenient for conveyer.Preferably
, the clamping part 15 is made of nonmetallic materials, is insulator.Clamping part 15 may be provided at adapter 11 and extension component 2
One end of connection.Since the welding of feedthrough conductor 113 and conductive filament 21 can expose the wire or conductive filament of a part of conduction,
The clamping part 15 of insulation is also used as the wire that protective exposes this part or conductive filament package, avoids this part sudden and violent
The wire or conductive filament of exposing are contacted with blood or heart tissue, internal from extension component 2 to pacemaker ontology 1 to realize
The complete insulation system of circuit 12.Certainly in some other embodiment, the protective that can also separately set insulation is sudden and violent by this part
The wire or conductive filament of exposing wrap up, and the setting position of clamping part 15 can be unlimited at this time, such as clamping part 15 at this time
The shape of outer-hexagonal can be formed by the periphery of second shell 13 to realize.The present embodiment is unlimited to this.
The no adoptable working method of conducting wire pacemaker provided in this embodiment is for example:
1. auricular pacemaking -- ventricular sense: excitement under normal Atrioventricular Conduction approach through passing after patient's auricular pacemaking, by ventricle
Perception and inhibition ventricular pace pulse granting, are similar to AAI mode；
2. auricular pacemaking -- ventricular pacemaking: patient's intrinsic atrial rate is slower than lower bound frequency, and there are AVB (AV BLOCK, rooms
Room block, A are the abbreviations in (atrium) Atria, and V is the abbreviation of Ventricular (ventricle)), then atrium first paces, then passes through
Preset atrio-ventricular delay paces ventricle, is in atrial-ventricular sequential pacing, is similar to AAI+VVI mode or DVI mode；
3. atrial sense -- ventricular sense: patient's intrinsic atrial rate is faster than lower bound frequency, and Atrioventricular Conduction is normal,
P-R interphase is shorter than preset atrio-ventricular delay, then atrial ventricle's pace-making is suppressed；
4. atrial sense -- ventricular pacemaking: patient's intrinsic atrial rate is faster than lower bound frequency, but has AVB, then perceives the P of itself
After wave, ventricle is paced by preset atrio-ventricular delay, is equivalent to VAT mode or VDD mode.
The working method of no conducting wire pacemaker provided in this embodiment is similar to DDD pacemaker, and DDD pacemaker is ideal
Two-chamber Physiological Pacing device, be suitable for permanent or intermittent AVB (atrioventricular block), sick sinus syndrome or with
The patient of AVB, it is more demanding to heart rate response and haemodynamics or once have the patient of pacemaker syndrome even more ideal.It needs to manage
Solution, above-mentioned several working method are only schematical example and non-limiting, and those skilled in the art can also be according to different trouble
The setting others working method of person and different situations to no conducting wire pacemaker.
In conclusion no conducting wire pacemaker provided by the invention includes pacemaker ontology, extension component and head-end segment.Institute
Pacemaker ontology is stated to pace or perceive the first object；One end of the extension component is electrically connected with the pacemaker ontology；
The head-end segment is electrically connected with the other end of the extension component；Wherein, the pacemaker ontology is also to pass through the head
The second object of end pieces pace-making or perception.Configured in this way, pacemaker ontology perceives point as first pace-making, and head-end segment passes through
Extension component is electrically connected with pacemaker ontology, that is, is formed second pace-making and perceived point.First pace-making perception point such as may be provided at
Ventricle, second pace-making perception point such as may be provided at atrium, compare existing no conducting wire pacemaker, can be respectively to atrium and ventricle
The problems such as being paced or perceived, being can be reduced or even avoid chamber asynchronous, indication range are wider.In addition, extension component
Setting is also suitable for just to lead to replace pacemaker in developmental children because cardiac growth becomes larger, reducing patient's
Pain and financial burden.
It should be noted that above-mentioned several embodiments are only to exemplary description of the invention rather than to limit of the invention
Fixed, without departing from the inventive concept of the premise, various modifications and improvements can be made by those skilled in the art,
Belong to the protection scope of claims.
Claims (15)
1. a kind of no conducting wire pacemaker characterized by comprising
Pacemaker ontology, to pace or perceive the first object；
Extension component, one end are electrically connected with the pacemaker ontology；And
Head-end segment is electrically connected with the other end of the extension component；
Wherein, the pacemaker ontology is also to be paced or be perceived the second object by the head-end segment.
2. no conducting wire pacemaker according to claim 1, which is characterized in that the head-end segment includes fixing piece, described
Fixing piece is to be fixed to second object for the extension component.
3. no conducting wire pacemaker according to claim 2, which is characterized in that the fixing piece is in hook-shaped, the fixing piece
Free end be equipped with needle portion, first predetermined position of the needle portion to be inserted into second object.
4. no conducting wire pacemaker according to claim 3, which is characterized in that the needle portion is equipped with non-slip groove.
5. no conducting wire pacemaker according to claim 4, which is characterized in that the non-slip groove includes that at least one is cricoid
Groove, the groove are circumferentially disposed at the needle portion.
6. no conducting wire pacemaker according to claim 1, which is characterized in that the head-end segment further includes shank, described
Shank is clamped with for external conveyer.
7. no conducting wire pacemaker according to claim 6, which is characterized in that the shank has positive stop lug boss, the limit
Position boss is to limit the conveyer.
8. no conducting wire pacemaker according to claim 1, which is characterized in that the extension component is flexibility.
9. no conducting wire pacemaker according to claim 1, which is characterized in that the extension component include several conductive filaments and
The insulating sleeve being coated on outside the conductive filament.
10. no conducting wire pacemaker according to claim 1, which is characterized in that the pacemaker ontology includes fixing seat, institute
Fixing seat is stated mutually to fix with the second predetermined position of first object, the fixing seat is electric conductor, with the pace-making
The internal circuit of device ontology is electrically connected.
11. no conducting wire pacemaker according to claim 10, which is characterized in that the fixing seat includes consolidating of extending spirally
Determine needle, second predetermined position of the fixed pin to be inserted into first object.
12. no conducting wire pacemaker according to claim 11, which is characterized in that the fixing seat includes more than two solid
Determine needle, more than two fixed pins extend spirally in the same direction.
13. no conducting wire pacemaker according to claim 11, which is characterized in that the length that the fixed pin extends spirally is small
In a circle.
14. no conducting wire pacemaker according to claim 11, which is characterized in that the helix angle of the fixed pin be 5~
20°。
15. no conducting wire pacemaker according to claim 1, which is characterized in that the pacemaker ontology further includes adapter,
Internal circuit and the extension component of the adapter to connect the pacemaker ontology；The adapter and the extension
It is tightly connected between component and the pacemaker ontology.
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| CN110152191B (en) | 2023-06-16 |
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