CN106806977A - Through conduit intramyocardial injection system - Google Patents
Through conduit intramyocardial injection system Download PDFInfo
- Publication number
- CN106806977A CN106806977A CN201510868549.7A CN201510868549A CN106806977A CN 106806977 A CN106806977 A CN 106806977A CN 201510868549 A CN201510868549 A CN 201510868549A CN 106806977 A CN106806977 A CN 106806977A
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- Prior art keywords
- conduit
- puncture needle
- distal end
- injection system
- needle
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- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 238000005452 bending Methods 0.000 claims abstract description 23
- 238000002679 ablation Methods 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 210000002837 heart atrium Anatomy 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009954 braiding Methods 0.000 description 3
- 210000004165 myocardium Anatomy 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 210000000130 stem cell Anatomy 0.000 description 3
- 206010019280 Heart failures Diseases 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920002614 Polyether block amide Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 208000010125 myocardial infarction Diseases 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 210000005241 right ventricle Anatomy 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 210000001215 vagina Anatomy 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 208000001778 Coronary Occlusion Diseases 0.000 description 1
- 206010011086 Coronary artery occlusion Diseases 0.000 description 1
- 206010061216 Infarction Diseases 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000560 biocompatible material Substances 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004413 cardiac myocyte Anatomy 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003191 femoral vein Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000007574 infarction Effects 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 210000005240 left ventricle Anatomy 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 210000005245 right atrium Anatomy 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000002620 vena cava superior Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses one kind through conduit intramyocardial injection system, including catheter body, the distal end of the catheter body is fixed with ablation part, and the near-end of the catheter body is fixed with handle portion.The ablation part includes elastic head end pipe, and ablating electrode is provided with the distal end of the elastic head end pipe, and it includes at least one chamber；Needle outlet is provided with the ablating electrode.Puncture needle is extended in the chamber of the ablating electrode by the elastic head end pipe；The puncture needle is extended to outside the conduit by the needle outlet；The distal end of the puncture needle includes a bending section, and its internal diameter of tube body is 0.25~0.35mm.When in use, medicine can pass through puncture needle tube body to system of the invention, ensure that puncture needle tube body does not occur dead folding in use.
Description
Technical field
The present invention relates to a kind of injecting systems, concretely it is related to one kind through conduit intramyocardial injection system.
Background technology
The heart of human body includes atrium sinistrum, atrium dextrum, left ventricle and right ventricle.Wherein atrium dextrum and superior vena cava and cavity of resorption
Vein is connected, and has one layer of barrier film between atrium sinistrum and atrium dextrum.At present, coronary heart disease is the most common disease for causing death,
When generation coronary occlusion seriously limits the blood flow of cardiac muscle, heart failure or myocardial infarction just occurs.At present,
There is 70% to be all derived from miocardial infarction in patients with heart failure.Of short duration ischemic or obstruction can make cardiac muscle sustain damage, positive reason
Under condition, cardiac muscle cell can not regenerate.
At present, generally using the less interventional systems of infringement, such as conduit system is come to injection of heart medicine.Such as U.S. Publication
Patent US20060095004 (" deflectable micro- implantation delivery conduit "), US6059770 (" conduit entered in chamber is provided ")
And US6059969 (" for the system and method for local conveying medicament ").
But, existing injection catheter, its effect is still undesirable, it is necessary to a kind of new conduit finds myocardial infarction area
Domain, carries out injection of drug.
The content of the invention
The present invention provide one kind through conduit intramyocardial injection system, including catheter body, the catheter body have distal end,
Near-end and central lumen, the distal end of the catheter body are fixed with ablation part, and the near-end of the catheter body is fixed with
Handle portion；The ablation part includes elastic head end pipe, and the elastic head end pipe has distal end, near-end and at least
Individual chamber, ablating electrode is provided with the distal end of the elastic head end pipe；The ablating electrode includes at least one chamber,
Needle outlet is provided with the ablating electrode；Also include puncture needle, wire in the central chamber of the catheter body,
The puncture needle and wire are extended in the chamber of the ablating electrode by the elastic head end pipe；The puncture needle leads to
The needle outlet is crossed to extend to outside the conduit；The puncture needle is made up of highly elastic material, and its distal end includes that one is curved
Tune, the internal diameter of tube body of the puncture needle is 0.25~0.35mm.
According to the embodiment of the invention, the ablating electrode include a lumen therethrough room, the insertion chamber it is remote
It is needle outlet to hold, and the distal end of the puncture needle is extended in lumen therethrough room, is extended outside conduit by needle outlet.
The angle of bend scope for puncturing needle tube body is 30-90 degree.The bending direction of the bending section and the conduit
The curved direction of control it is consistent.
Angle between the curved plane of puncture needle distal end bending section and the plane of bending of the distal end of catheter is less than
30 degree.Preferably, the curved plane of puncture needle distal end bending section and the plane of bending of the distal end of catheter are same
In plane.
The tip for puncturing needle tube body is one section of straightway, and the length of straigh line is 1-4mm.The puncture needle
It is microcosmic fillet structure at the needle point of body.
Sealing ring is additionally provided with the needle outlet of the ablating electrode.
The distal end body of the puncture needle is provided with some apertures.Preferably, the hole between the aperture at intervals of
1.5~2mm, 120 degree of deciles of each hole phase.
The handle portion includes pin handle and catheter control curved hand grip, and the conduit control curved hand grip goes out pin hand described in
The distal end of handle, its pass through tail end connecting tube with it is described go out pin handle be connected.Preferably, it is described go out pin handle distal end set
There are slide cores, the slide cores are provided with scale, its precision is 1mm.
One of the invention preferred embodiment in, described through in conduit intramyocardial injection system, the puncture
The internal diameter of tube body of pin 18 is 0.25~0.35mm, and wall thickness is 0.05mm-0.4mm, and the design can ensure injection liquid,
As stem cell passes through needle tubing, ensure that needle tubing does not occur dead folding in use.
Brief description of the drawings
Fig. 1 is the structural representation through conduit intramyocardial injection system of the invention；
Shown in Fig. 2 be catheter body 14 according to a preferred embodiment of the invention cross-sectional view；
Fig. 3 is the sectional view along the line A-A shown in Fig. 2；
Fig. 4 is the sectional view of the line C-C along Fig. 3；
Fig. 5 is the sectional view of the line B-B along Fig. 3；
Fig. 6 is the enlarged drawing at I in Fig. 3；
Fig. 7 is the enlarged drawing at II in Fig. 3；
Shown in Fig. 8 is that the puncture needle goes out pin figure.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail, but this hair
It is bright to be not limited only to the following examples.
Shown in Fig. 1 is a kind of preferred structural representation through conduit intramyocardial injection system 10 of the invention, including
Catheter body 14, it has proximally and distally, ablation part 15 is provided with the distal end of the catheter body 14, described
The near-end of catheter body 14 is provided with handle portion 13.
The handle portion 13 includes pin handle 31 and conduit control curved hand grip 32, wherein it is described go out pin handle 31 it is near
End is provided with syringe connecting seat, and its distal end is provided with slide cores 35.The slide cores 35 are provided with scale, and its precision is 1mm,
When pin is gone out, scale numerical value is out pin length.The syringe connecting seat is connected with female Luer.The conduit control is curved
Handle 32 located at it is described go out pin handle distal end, its pass through tail end connecting tube 36 with it is described go out pin handle 31 be connected.Institute
The near-end for stating conduit control curved hand grip 32 is additionally provided with wire and wire connection plug 37.
Shown in Fig. 2 be catheter body 14 according to a preferred embodiment of the invention cross-sectional view, Fig. 3 is along Fig. 2
Shown in line A-A sectional view.Fig. 4 is the sectional view of the line C-C along Fig. 3；Fig. 5 is the line B-B along Fig. 3
Sectional view.
The catheter body 14 includes reinforced pipe and is placed on its outside main body tube, and described main body tube can be by bio-compatible
Property macromolecular material be made, such as polyether block amide, polyurethane or nylon material.The inwall of described main body tube may be used also
Including at least one of which wire braid (not shown), being stainless steel braiding layer, the metal wire knitted
Layer can be one layer, two-layer or more.The reinforced pipe includes a single central lumen 41, and it can be by any suitable
Macromolecular material be made, such as polyether block amide, polyurethane or nylon material one extrusion forming.The catheter body
14 can be elongated, flexible, but incompressible in its longitudinal direction, and the central lumen 41 is in catheter body
14 it is axially extending.Wire 43, draught line 42 extend in described central lumen 41.
The ablation part 15 includes elastic head end pipe 54, and it can be made up of biocompatible materials, including distal end, near
End and at least one chamber.According to the embodiment of the invention, the elastic head end pipe 54 include first chamber 51,
The chamber 53 of second chamber 52 and the 3rd.Described first chamber 51, the chamber 53 of second chamber 52 and the 3rd can all be
Eccentric chamber, or a central lumen and two eccentric chambers are constituted.The inwall of the elastic head end pipe 54 is also
At least one of which wire braid (not shown) can be included, can be stainless steel braiding layer, the wire is compiled
Tissue layer can be one layer, two-layer or more；Can also be without braiding layer.
The near-end of the elastic head end pipe 54 is levigate end, as shown in figure 3, the internal diameter phase of its external diameter and catheter body 14
Coordinate, by the levigate end insertion catheter body 14, it can be entered by bonding, welding or other suitable modes
Row is fixed, and it is adhesively fixed with catheter body 14 by ultraviolet curing glue such as.
Fig. 6 is the enlarged drawing at I in Fig. 3；Fig. 7 is the enlarged drawing at II in Fig. 3；Shown in Fig. 8 is the puncture
Pin goes out pin figure.
As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, ablating electrode 16 is provided with the distal end of the elastic head end pipe 54.
On length direction along elastic head end pipe 54, be also provided with ring electrode 17, its quantity can according to actual needs and
Difference, can be without ring electrode, or one, two, three, four or more.The ablating electrode 16
Including at least one insertion chamber.According to a specific embodiment of the invention, the ablating electrode 16 can include three
Chamber 61,62,63.Three chambers 61,62,63 can all be eccentric chamber, or a center cavity
Room and two eccentric chambers are constituted.One of chamber is insertion chamber, and its distal end is in the ablating electrode 16
Opening is needle outlet 64.The axis of the insertion chamber 61 can be the diameter parallel with the catheter body 14,
Can there is certain angle between the axis of the catheter body 14.
The ablating electrode 16 can also include at least one cavity, and the housing of the ablating electrode 16 is provided with out pin
Hole 64.According to a specific embodiment of the invention, adapter is set between the ablating electrode 16 and elastic head end pipe,
The adapter includes three holes, first chamber 51 respectively with elastic head end pipe, the chamber 53 of second chamber 52 and the 3rd
It is connected.Can respectively be sealed in three holes of the adapter and be fixed with hollow tube.One of hollow tube is extended to
In the needle outlet.The hollow tube can be sealingly fastened in the hole by welding, bonding or other suitable modes.
Puncture needle 18, it can be made up of any suitable highly elastic material, such as nickel-titanium alloy material.The puncture needle 18
Distal end can be extended in the first chamber 51 of the elastic head end pipe by the central lumen 41 of catheter body 14,
Then extend into one of insertion chamber 61 of the ablating electrode 16.The distal end of the puncture needle 18 can be with
Extend the outside of insertion chamber 61 by needle outlet 64.
The bending of the tolerable smaller radius of curvature actively or passively of the puncture needle 18, such as R >=1.5mm, now internal diameter
Do not change and can recover straight.The internal diameter of tube body of the puncture needle 18 is 0.25~0.35mm, and wall thickness is
0.05mm-0.4mm, can so ensure do not occur in bending " dead folding ".If external diameter be more than 0.4mm, excessive high hardness,
Cannot realize controlling curved function.The design can ensure to irrigate liquid, and such as stem cell passes through puncture needle tube body, ensures that
Puncture needle tube body and dead folding does not occur in use.
The needle tubing distal end of the puncture needle 18 includes a bending section 81.The puncture needle 18 is to stretch in catheter interior
State, when the puncture needle extends to the conduit outside, the distal end of the puncture needle 18 reverts to case of bending.
When needle point stretches out conduit head end, the presence of the bending section 81 makes the direction of advance of needle point deflect, the puncture
The angle of bend scope of the body of pin 18 is 30-90 degree.This structure is adapted to penetrate ventricle muscular tissue, is not susceptible to pass through
It is logical.The bending direction of the bending section 81 is consistent with the curved direction of the control of conduit, the curved plane of the bending section 81 and institute
The angle between the plane of bending of distal end of catheter is stated less than 30 degree, preferably in the same plane.This structure is conducive to pin
Point punctures stress, and is conducive to making puncture be oriented parallel to the internal membrane of heart.The tip for puncturing needle tube body is one section of straightway,
The length of straigh line is 1-4mm.This structure advantageously ensures that needle point through after the internal membrane of heart, further according to curved transformation
Needle point direction.
There is microcosmic fillet design at the needle point for puncturing needle tube body, tip location is not deposited in puncture needle tube wall
It is needle interior wall.The fillet direction of needle point makes needle point " tilting " direction consistent with curved direction towards curved direction.
This structure is conducive to making needle point sharper, and is conducive to during pin is gone out, and needle point is punctured direction towards curved side
To deflection.
Sealing ring is also provided with the needle outlet 64 of the ablating electrode 16, it can be by silica gel, PTFE or TPU
Polymer material is made.So on the one hand the air in needle tubing passage out of shape can be avoided from entering blood, while can also keep away
Exempt from blood to be back in needle tubing passage out of shape.When the extreme position in needle tip retracts to ablating electrode, its tip does not contact
Sealing ring, can avoid sealing ring from being scratched by needle point.
Can only be irrigated by distal port without hole on the distal end body of the puncture needle 18.The puncture needle 18 it is remote
Many apertures can also be provided with end pipe body, the quantity of the aperture can be decided according to the actual requirements.The aperture it
Between hole interval can be 1.5~2mm, 120 degree of deciles of each hole phase.It is total that the body of the puncture needle 18 is exported
Section is less than the area of section that body is most carefully located, it is ensured that the equalization of pressure of each hole water outlet.
The central lumen 41 proximally by catheter body 14 of the puncture needle 18 goes out in pin handle 31 described in extending to,
Its fixing means can be fixed using any suitable method well known to those skilled in the art.
Perfusion liquid, can be any suitable medicine, such as stem cell, its pass through it is described go out pin handle 31 near-end
Into in the body of the puncture needle 18.When the body of the puncture needle 18 extends to the insertion of the ablating electrode 16
During 61 outside of chamber, perfusion liquid flows out to corresponding perfusion position by the body of puncture needle 18.
Also include that at least one heat sensor 45 extends in it in described central lumen 41, it can be thermocouple
Or thermistor；The quantity of the heat sensor can also be two, three, four or more, such as Fig. 3, Fig. 4,
Shown in Fig. 5 and Fig. 6, the distal end of the heat sensor 45 extends to elasticity by the central lumen 41 of catheter body 14
In the second chamber 52 of head end pipe, subsequently enter in one of chamber 62 of the ablating electrode 16.The heat is passed
Sensor 45 can be fixed on the electrode shell of the ablating electrode 16 by welding, bonding or other suitable modes,
Such as can be by being welded and fixed.The heat sensor 45 to extend into the conduit control proximally by central lumen 41 curved
Handle 13, and extended out from the conduit control curved hand grip 13, be connected (not shown) with device for detecting temperature.
Draught line 42, can be made of stainless steel or nickel-titanium alloy material, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6,
Its distal end is extended in the second chamber 52 of elastic head end pipe by central lumen 41.In the center cavity of catheter body 14
One section of draught line 42 of indoor extension, can also be cased with bourdon tube outside it.The bourdon tube can be with the tight of tightening force
Close structure, is cased with protective case pipe (not shown) outside it.The second protection sleeve pipe can be by any suitable material
It is made, such as polyamide material, extends in it for the bourdon tube.Described second protects proximally and distally may be used for sleeve pipe
It is fixed on the bourdon tube with by bonding, welding or other suitable modes, such as can be gluing by ultraviolet curing
Tie on the bourdon tube.As shown in figure 3, the one section of draught line 42 extended in the elastic head end pipe, outside it
Protection sleeve pipe can be cased with, the protection sleeve pipe can be made up of any suitable material, such as polytetrafluoroethylmaterial material.
The distal end of the draught line 42 is extended into one of chamber 62 of the ablating electrode 16, and its end leads to
Cross welding, bonding or other suitable modes to be fixed in the ablating electrode 16, be such as fixed by welding.Institute
Being proximally secured on the conduit control curved hand grip 13 for draught line 21 is stated, its fixing means can use people in the art
Any suitable method known to member is fixed.
Wire 43, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, its distal end extends to elastic head end by central lumen 41
In 3rd chamber 53 of pipe, electrically connected with ablating electrode 16 and ring electrode 17 respectively, its connected mode for welding or
Other suitable modes, such as by being welded and fixed.Thread-protected tube is also provided with the outside of the wire 43.
Wire 43 is proximally secured on the conduit control curved hand grip 13, and its fixing means can use people in the art
Any suitable method known to member is fixed, for example, be fixed by welding on wire connection plug 37.
It is described through conduit intramyocardial injection system 10 when in use, first passing through common puncture needle carries out femoral vein or stock
Arteriopuncture, is put into vagina vasorum after the completion of puncture.Injecting systems 10 are put into Ink vessel transfusing by vagina vasorum, by cavity of resorption
Vein or sustainer enter atrium dextrum, right ventricle or atrium sinistrum.Target position is found using electrode mapping function, using X
The developing location of image or tip electrode determines site of puncture, punctures the needle point of puncture needle 18 and enters cardiac muscle, by Rule
Joint is to intracavitary administration medicine.
Embodiments of the present invention are not limited to described in above-described embodiment, in situation without departing from the spirit and scope of the present invention
Under, those of ordinary skill in the art can make various changes and improvement to the present invention in form and details, and these are equal
It has been considered within protection scope of the present invention.
Claims (10)
1. one kind is through conduit intramyocardial injection system, it is characterised in that including catheter body, and the catheter body has distal end, near
End and central lumen, the distal end of the catheter body are fixed with ablation part, and the near-end of the catheter body is fixed with hand
Handle portion；
The ablation part includes elastic head end pipe, and the elastic head end pipe has distal end, near-end and at least one chamber,
Ablating electrode is provided with the distal end of the elastic head end pipe；The ablating electrode includes at least one chamber, described
Ablating electrode is provided with needle outlet；
Also include puncture needle, wire in the central chamber of the catheter body, the puncture needle and wire are by described
Elastic head end pipe is extended in the chamber of the ablating electrode；The puncture needle is extended to described by the needle outlet
Outside conduit；
The puncture needle is made up of highly elastic material, and its distal end includes a bending section, and the internal diameter of tube body of the puncture needle is
0.25~0.35mm.
2. it is according to claim 1 through conduit intramyocardial injection system, it is characterised in that the ablating electrode includes an insertion
Chamber, the distal end of the insertion chamber is needle outlet, and the distal end of the puncture needle is extended in lumen therethrough room, by going out
Pin hole extends outside conduit；Preferably, the body wall thickness of the puncture needle is 0.05mm-0.4mm.
3. according to claim 1 and 2 through conduit intramyocardial injection system, it is characterised in that the puncture needle tube body it is curved
Bent angular range is 30-90 degree.
4. it is according to claim 1 and 2 through conduit intramyocardial injection system, it is characterised in that the bending side of the bending section
To consistent with the curved direction of the control of the conduit.
5. it is according to claim 4 through conduit intramyocardial injection system, it is characterised in that puncture needle distal end bending section
Angle between the plane of bending of curved plane and the distal end of catheter is less than 30 degree；Preferably, the puncture needle is remote
The curved plane of end bending section is with the plane of bending of the distal end of catheter in the same plane.
6. according to any of the above-described claim through conduit intramyocardial injection system, it is characterised in that the puncture needle tube body
Tip be one section of straightway, the length of straigh line be 1-4mm.
7. according to any of the above-described claim through conduit intramyocardial injection system, it is characterised in that the puncture needle tube body
Needle point at be microcosmic fillet structure.
8. according to any of the above-described claim through conduit intramyocardial injection system, it is characterised in that the ablating electrode
Sealing ring is additionally provided with needle outlet.
9. according to any of the above-described claim through conduit intramyocardial injection system, it is characterised in that the puncture needle
Distal end body is provided with some apertures；Preferably, the hole between the aperture is at intervals of 1.5~2mm, each hole phase
120 degree of deciles.
10. according to any of the above-described claim through conduit intramyocardial injection system, it is characterised in that the handle portion
Including going out pin handle and catheter control curved hand grip, the conduit control curved hand grip goes out the distal end of pin handle described in, and it passes through
Tail end connecting tube with it is described go out pin handle be connected；Preferably, it is described go out pin handle distal end be provided with slide cores, the cunning
Dynamic core is provided with scale, and its precision is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868549.7A CN106806977B (en) | 2015-11-28 | 2015-11-28 | Transcatheter intramyocardial injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868549.7A CN106806977B (en) | 2015-11-28 | 2015-11-28 | Transcatheter intramyocardial injection system |
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| Publication Number | Publication Date |
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| CN106806977A true CN106806977A (en) | 2017-06-09 |
| CN106806977B CN106806977B (en) | 2024-04-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107802955A (en) * | 2017-11-16 | 2018-03-16 | 中国人民解放军火箭军总医院 | A kind of Pulsed Electric Fields oncotherapy electrode |
| CN110339433A (en) * | 2019-08-20 | 2019-10-18 | 中国人民解放军总医院 | A kind of three puncture needle device and method for ultrasound guidance through chest transexocardial intramyocardial injection |
| CN111513842A (en) * | 2020-04-24 | 2020-08-11 | 绍兴梅奥心磁医疗科技有限公司 | Combined ablation catheter |
| CN111513841A (en) * | 2020-04-24 | 2020-08-11 | 绍兴梅奥心磁医疗科技有限公司 | Magnetic navigation radio frequency and injection combined ablation flexible catheter |
| JP2021115467A (en) * | 2020-01-21 | 2021-08-10 | プレッシャー プロダクツ メディカル サプライズ インコーポレイテッドPressure Products Medical Supplies Inc. | Improvement in cardiac transseptal instrument, assembly, and method of use of the same |
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| CN107802955A (en) * | 2017-11-16 | 2018-03-16 | 中国人民解放军火箭军总医院 | A kind of Pulsed Electric Fields oncotherapy electrode |
| CN107802955B (en) * | 2017-11-16 | 2024-03-22 | 中国人民解放军火箭军总医院 | Steep pulse electric field tumor treatment electrode |
| CN110339433A (en) * | 2019-08-20 | 2019-10-18 | 中国人民解放军总医院 | A kind of three puncture needle device and method for ultrasound guidance through chest transexocardial intramyocardial injection |
| CN110339433B (en) * | 2019-08-20 | 2024-05-14 | 中国人民解放军总医院 | Triple puncture needle device and method for transthoracic epicardial intramyocardial injection under ultrasonic guidance |
| JP2021115467A (en) * | 2020-01-21 | 2021-08-10 | プレッシャー プロダクツ メディカル サプライズ インコーポレイテッドPressure Products Medical Supplies Inc. | Improvement in cardiac transseptal instrument, assembly, and method of use of the same |
| JP7185710B2 (en) | 2020-01-21 | 2022-12-07 | プレッシャー プロダクツ メディカル サプライズ インコーポレイテッド | Improving transcardiac transseptal devices, assemblies, and methods of use thereof |
| CN111513842A (en) * | 2020-04-24 | 2020-08-11 | 绍兴梅奥心磁医疗科技有限公司 | Combined ablation catheter |
| CN111513841A (en) * | 2020-04-24 | 2020-08-11 | 绍兴梅奥心磁医疗科技有限公司 | Magnetic navigation radio frequency and injection combined ablation flexible catheter |
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| CN106806977B (en) | 2024-04-19 |
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