CN209091556U - Three-dimensional atrial septal puncture component - Google Patents
Three-dimensional atrial septal puncture component Download PDFInfo
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- CN209091556U CN209091556U CN201820825057.9U CN201820825057U CN209091556U CN 209091556 U CN209091556 U CN 209091556U CN 201820825057 U CN201820825057 U CN 201820825057U CN 209091556 U CN209091556 U CN 209091556U
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Abstract
The utility model discloses a kind of three-dimensional atrial septal puncture components, including Interaurcular septum puncture needle and expander, wherein the expander includes expander tube body, the expander tube body includes central lumen, proximally and distally, the distal end of the expander tube body is equipped with aperture, contact assembly is equipped in the aperture, the contact assembly includes elastic element；The proximal end of the expander tube body is connect with female Luer.The three-dimensional atrial septal puncture component of the utility model, allows the position of Interaurcular septum puncture needle needle point real-time display in three dimension system, has reduced or eliminated the risk that needle point causes damage to superior vena cava and endocardial tissue.
Description
Technical field
The utility model relates to a kind of three-dimensional atrial septal puncture components.
Background technique
The patient of Chinese affected by atrial trembling (atrial fibrillation) is more than 12,000,000, penetrating under radical cure atrial fibrillation first choice three dimension system guidance
Frequency ablation.One of the important step for completing the operation is exactly heart atrial septal puncture art.
The atrial septal puncture art of country's mainstream is still the atrial septal puncture art under radioscopy guidance at present, this is half
Technology under a kind of two-dimensional surface visual angle that developed before a more centuries lacks the accurate finger that three-dimensional space is given
Show, grasps this technology and need prolonged clinical accumulation, venipuncture difficulty is very big if patient's heart variation, and be too obese trouble
Person and puncture success rate and safety are more influenced when not high X-ray machine clarity.External country, especially U.S. etc. advocates
Intracardiac echocardiography guidance under atrial septal puncture art be to increase by a radical center endo-luminal ultrasound (ICE) on the basis of radioscopy to lead
Pipe is also a kind of two-dimensional surface technology, it is difficult to good to embody the true of heart although increasing the accuracy of positioning on the whole
Real three-dimensional space feeling, additionally, due to needing corresponding cardiac ultrasonic to gain knowledge and expensive ultrasound catheter, actually
Substantially increase equipment and technical threshold.
In recent years, as the application of three dimension system is further extensive, a kind of novel three-dimensional atrial septal puncture method is derived,
It is operated under Three Dimensional Interface completely, does not need X-ray and contrast agent.The accuracy and successfully of atrial septal puncture can not only be improved
Rate, safety are also completely secure.The more crucial step of such piercing method is the visualization of seal wire and Interaurcular septum puncture needle.
Any good conductor, such as seal wire or puncture needle can be defined as a two pole mapping catheters in three dimension system, and pass through two
Pole connects buttock line and conductor is accessed three-dimensional mapping system.When puncture, seal wire and long sheath are sent into superior vena cava first.Using having
Long sheath is sent into superior vena cava by the conduit of magnetic orientation device, is then exchanged for interior sheath and is added seal wire.Including wherein seal wire remains
Outside sheath, when 2~3mm outside interior sheath is stretched out in the distal end of seal wire, the head end of seal wire can be shown in three dimension system.Then it will lead
Silk is exchanged for Interaurcular septum puncture needle, and the opposite position of puncture needle and long sheath is judged by the length that puncture needle handle stays in outside long sheath
It sets；The position of Interaurcular septum puncture needle is confirmed with this.
Finally Interaurcular septum puncture needle is visualized using three-dimensional mapping system.It, can be in three-dimensional when needle point goes out 2~3mm of sheath
The display of needle is seen on Mapping System and judges position of the needle in heart and blood vessel.By puncture needle handle indicator and long sheath
4 directions are directed toward in direction, are pulled down simultaneously, the movement of visible puncture needle in three dimension system.When puncture needle slide to the puncture of label
When point, i.e. atrial septum oval hole site, generally having the sense that falls through can try on, and breakthrough sense is generally had when across interval.This
When three dimension system in can be clearly apparent puncture needle and enter 1~1.5cm of atrium sinistrum.If there is visual fusion, it is clear that and wears
Pricker and the isostructural three-dimensional relationship of left and right atrium and aorta.
The problem of such piercing method, is, could be real in three dimension system since needle point need to expose interior 2~3mm of sheath always
When show the position of puncture needle, during operation Interaurcular septum puncture needle slides into oval foramen point of puncture by epicoele passages through which vital energy circulates, needle point
Superior vena cava and endocardial tissue may be caused to damage, are badly in need of a kind of new expander head construction now, in reduction or not
Need X-ray, do not need to complete centesis in the case where echocardiogram guidance, and reduce or eliminate needle point to superior vena cava and
Endocardial tissue causes to damage.
Therefore, it is necessary to a kind of novel three-dimensional atrial septal puncture components.
Summary of the invention
A kind of three-dimensional atrial septal puncture component, including Interaurcular septum puncture needle and expander, wherein the expander includes expanding
Prop tube body, the expander tube body include central lumen, proximally and distally, and the distal end of the expander tube body is equipped with small
Hole, the aperture is interior to be equipped with contact assembly, and the contact assembly includes elastic element；The proximal end of the expander tube body and Rule
Connector connection.
The contact assembly includes elastic element.The contact assembly further includes sliding members.
The contact assembly further includes frame and end cap.
The elastic element is spring, is set in the frame, and sliding members is set at the top of elastic element.
The sliding members is the combination of sphere, cylindrical body or sphere and cylindrical body.
The elastic element is made of sheet metal bending.
The elastic element includes the arch section and main part on top, and the side of the main part is fixed to institute
It states on frame, another lateral suspension.
The distance of the distal end end face of expander tube body described in the centre distance of the aperture is 3-20mm；Preferably, described
The distance of the distal end end face of expander tube body described in the centre distance in hole is 5-15mm.
The aperture is set to the one or both sides of expander body distal end；Preferably, the expander body distal end
Two sides are equipped with aperture, and described two apertures are through hole.
The cross section of the aperture is round or rectangle.
When the aperture is round hole, diameter 0.6-1.2mm；Preferably, the diameter in the hole is 0.85mm.
The distal diameter of the central lumen of the expander tube body from large to small, lesser one section of the diameter the length is
8-9mm。
The distal end bilateral of the expander tube body is equipped with contact assembly.
The three-dimensional atrial septal puncture component according to a kind of embodiment in the utility model, by expander
Head side wall punching and placement contact assembly, enable Interaurcular septum puncture needle to realize that electrical property is led close to tip portion and blood
Logical, when needle point is hidden in expander, three dimension system can display real-time tip position, reduce or eliminate needle point to superior vena cava
And endocardial tissue causes the risk of damage.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of three-dimensional atrial septal puncture component 10；
Shown in Fig. 2 is the distal structure schematic diagram of expander 30；
Shown in Fig. 3 is the cross-sectional view of the line A-A along Fig. 2；
Shown in Fig. 4 is the top view of contact assembly 13；
Shown in fig. 5 is the cross-sectional view of the line B-B along figure；
Shown in fig. 6 is the cross-sectional view after contact assembly 13 assembles；
Shown in Fig. 7 is the distal structure schematic diagram of the three-dimensional atrial septal puncture component 10 of another embodiment；
Shown in Fig. 8 is the cross-sectional view of the line C-C along Fig. 7；
Shown in Fig. 9 is the top view of contact assembly 130；
Shown in Fig. 10 is the cross-sectional view of the line D-D along figure；
It is the cross-sectional view after contact assembly 130 assembles shown in Figure 11；
Figure 12 is the enlarged drawing in Figure 11 at I.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solution of the utility model is described in further detail, but
The utility model is not limited only to the following examples.
Fig. 1 show the structural schematic diagram of three-dimensional atrial septal puncture component 10；Shown in Fig. 2 is according to the utility model one
The distal structure schematic diagram of the expander 30 of kind embodiment；Shown in Fig. 3 is the cross-sectional view of the line A-A along Fig. 2.Such as Fig. 1, figure
Shown in 2 and Fig. 3, three-dimensional atrial septal puncture component 10 includes Interaurcular septum puncture needle 20 and expander 30, and the expander includes expanding
Prop tube body 32, the expander tube body 32 include central lumen, proximally and distally.It is set on the distal end of the expander tube body 32
There is aperture 33, the cross section of the aperture 33 can be any suitable shape, such as circle, oblong, rectangle or square
Deng.When the cross section of the aperture 33 is round hole, diameter can be 0.6-1.2mm, preferably 0.85mm.The aperture
33 center is 3-20mm, preferably 5-15mm at a distance from the distal end end face of the expander tube body 32.The aperture 33 can
To be the side for being set to 32 distal end of expander tube body, its two sides can also be set to.When two sides are equipped with hole, two apertures
It can penetrate through, can not also penetrate through.The aperture 33 includes 1-3 group aperture, it is preferred that is equipped with two groups of apertures.The expander
The proximal end of tube body 32 is connected with female Luer 34.
The expander tube body 32 passes through for medical instrument, such as Interaurcular septum puncture needle.In the expander tube body 32
From large to small, the length is 8-9mm for lesser one section of the diameter for the distal diameter of chambers of the heart room.This structure can limit room
Go out needle length every puncture needle, avoids out the too long bring of needle dangerous.
The Interaurcular septum puncture needle 20 includes proximally and distally.The needle body of the puncture needle 20 can be one section of pipe one at
Shape is also possible to two sections of pipes and connects and composes.The diameter of the needle body distal end of the puncture needle 20 is less than the diameter of proximal end.The puncture
The needle body of needle 20 can be made of conductive metal material, such as stainless steel.Insulating layer or set can also be coated with outside the needle body
There is an insulation tube, it is exposed at the needle point, it is not provided with insulating layer, does not also cover insulation tube.
The proximal end of the puncture needle 20 is equipped with haemostatic valve 21, and the haemostatic valve 21 is equipped with conducting wire 22.The conducting wire 22
Proximal end is connect with contact pin.
Shown in Fig. 4 is the top view of contact assembly 33；Shown in fig. 5 is the cross-sectional view of the line B-B along Fig. 4；Shown in Fig. 6
Be contact assembly 33 assemble after cross-sectional view.As shown in Figures 4 to 6, the cross section of the aperture 33 is circle, the aperture
Contact assembly 35 is equipped in 33.The contact assembly 35 includes elastic element 51 and sliding members 52.The elastic element 51 can
To be that spring or other suitable elements, the sliding members 52 can be the combination of sphere, cylindrical body or sphere and cylindrical body
Etc. suitable element.The needle body of sliding members 52 and Interaurcular septum puncture needle can be made to realize by the elastic force of elastic element reliable
Contact.
The contact assembly 35 can also include frame 53 and end cap 54, and the end cap 54 can pass through any suitable side
Formula is fixed on said frame, such as welds.The elastic element 51 is set to the inside of the frame 53, and the sliding members 52 is set
In the top of the elastic element 51.The elastic element 51, sliding members 52, frame 53 and end cap 54 are by conductive material
It is made.Annular groove (not shown) is also provided in the aperture 33, the frame 53 can also be equipped with corresponding annular
Protrusion, the frame 53 described in this way can buckle in a ring groove, than stronger.
The contact assembly 35 is embedded in aperture 33 by hot melting way.The top of the sliding members 52 protrudes from expansion
The inner surface of 30 tube body of prop.When Interaurcular septum puncture needle out of described expander 30 by when, the distal end of the expander 30 with
Contact force size between Interaurcular septum puncture needle is determined by the pressing force of elastic element 51.The contact assembly 35 can also be set to
The two sides of the distal end of expander 30.
Aperture 33 or needle point needle body side wall and sliding member is completely covered in the side wall of the needle point needle body of the Interaurcular septum puncture needle
When part 52 contacts, electric performance conducting is realized by contact assembly 35 and blood, can see needle in three-dimensional mapping system at this time
Display and judge position of the needle in heart and blood vessel.
When in use according to the three-dimensional atrial septum component 10 of one embodiment of the utility model, first with magnetic orientation
Long sheath is sent into superior vena cava by the conduit of device, is then exchanged for expander 30 and seal wire.When expander is stretched out in the distal end of seal wire
When 30 2~3mm of outside, the head end of seal wire can be shown in three dimension system, in this way can be by three dimension system to seal wire
It is positioned.Then seal wire is exchanged for Interaurcular septum puncture needle, when aperture 33 or needle point needle body is completely covered in needle point needle body side wall
When side wall and sliding members 51 contact, needle point needle body realizes electric performance conducting by contact assembly 35 and blood, at this time can be
The display of Interaurcular septum puncture needle is seen in three-dimensional mapping system, thus judges position of the puncture needle in heart and blood vessel.It will wear
4 o'clock direction is directed toward in the direction of pricker handle indicator and long sheath, is pulled down simultaneously, the movement of visible puncture needle in three dimension system.
Since needle point is integrally located in expander 30 at this time, so needle point will not make epicoele passages through which vital energy circulates and endocardial tissue in moving process
At damage.When point of puncture of the puncture needle slide to label, i.e. atrial septum oval hole site generally has the sense that falls through, can carry out
It tries on, breakthrough sense is generally had when across interval.Can be clearly apparent in three dimension system at this time puncture needle enter atrium sinistrum 1~
1.5cm.If there is visual fusion, it is clear that puncture needle and left and right atrium and the isostructural three-dimensional space of aorta
Relationship.
Shown in Fig. 7 is the distal structure schematic diagram of the expander 300 of another embodiment；Shown in Fig. 8 is along Fig. 7
The cross-sectional view of middle line C-C；Shown in Fig. 9 is the top view of contact assembly 330；Shown in Fig. 10 is the section view of the line D-D along figure
Figure；It is the cross-sectional view after contact assembly 330 assembles shown in Figure 11；Figure 12 is the enlarged drawing in Figure 11 at I.Such as Fig. 7 to Figure 12
Shown, the cross section of the aperture 330 is rectangle, contact assembly 350 is equipped in the aperture 330, by conductive
The material of energy is made.The contact assembly 350 includes elastic element 510, and the elastic element 510 can be curved by sheet metal
Song is constituted, and is also possible to other suitable elements.
The contact assembly 350 can also include frame 530 and end cap 540, and the end cap 540 can be by any suitable
Mode it is fixed on said frame, such as weld.If the elastic element 510 is made of sheet metal bending, such as Figure 10
Shown, the elastic element 510 includes the arch section and main part on top, and the side of the main part can weld
On the frame 530, the other side is not fixed, and is suspended state.The arch section of the sheet metal protrudes from the frame
Outside.Since sheet metal is than relatively thin, and side is unlocked, and when depressed, the loose part of sheet metal can be with
It moves up and down.When aperture 330 or needle point needle body side wall and bullet is completely covered in the side wall of the needle point needle body of the Interaurcular septum puncture needle
Property element 510 arch section contact when, electric performance conducting is realized by contact assembly 350 and blood, at this time can be in three-dimensional
The display of needle is seen on Mapping System and judges position of the needle in heart and blood vessel.
Remaining structure of the expander 300 with shown in Fig. 2 to Fig. 6, the three-dimensional atrial septal puncture needle assemblies 100 its
Remaining structure is the same as shown in Fig. 1 to Fig. 7.
The embodiments of the present invention is not limited to described in above-described embodiment, without departing from the utility model spirit and
In the case where range, those of ordinary skill in the art can make various changes to the utility model in form and details and change
Into, and these are all considered to fall into the protection scope of the utility model.
Claims (17)
1. a kind of three-dimensional atrial septal puncture component, it is characterised in that including Interaurcular septum puncture needle and expander, wherein the expansion
Device includes expander tube body, and the expander tube body includes central lumen, proximally and distally, on the distal end of the expander tube body
Equipped with aperture, contact assembly is equipped in the aperture, the contact assembly includes elastic element.
2. three-dimensional atrial septal puncture component according to claim 1, it is characterised in that the cross section of the aperture is circle
Or rectangle.
3. three-dimensional atrial septal puncture component according to claim 1 or 2, it is characterised in that the contact assembly further includes sliding
Dynamic element.
4. three-dimensional atrial septal puncture component according to claim 3, it is characterised in that the contact assembly further includes frame
And end cap.
5. three-dimensional atrial septal puncture component according to claim 4, it is characterised in that the elastic element is spring, is set
In in the frame, sliding members is set at the top of elastic element.
6. three-dimensional atrial septal puncture component according to claim 5, it is characterised in that the sliding members is sphere, cylinder
The combination of body or sphere and cylindrical body.
7. three-dimensional atrial septal puncture component according to claim 4, it is characterised in that the elastic element is by sheet metal
Bending is constituted.
8. three-dimensional atrial septal puncture component according to claim 7, it is characterised in that the elastic element includes top
The side of arch section and main part, the main part is fixed on the frame, another lateral suspension.
9. three-dimensional atrial septal puncture component according to claim 1 or 2, it is characterised in that the centre distance institute of the aperture
The distance for stating the distal end end face of expander tube body is 3-20mm.
10. three-dimensional atrial septal puncture component according to claim 9, it is characterised in that described in the centre distance of the aperture
The distance of the distal end end face of expander tube body is 5-15mm.
11. three-dimensional atrial septal puncture component according to claim 1 or 2, it is characterised in that the aperture is set to expansion
The one or both sides of device body distal end.
12. three-dimensional atrial septal puncture component according to claim 11, it is characterised in that the expander body distal end
Two sides are equipped with aperture, and the aperture of the two sides is through hole.
13. three-dimensional atrial septal puncture component according to claim 5, it is characterised in that be additionally provided with annular in the aperture
Slot, the frame are equipped with annular protrusion.
14. three-dimensional atrial septal puncture component according to claim 13, it is characterised in that when the aperture is round hole, directly
Diameter is 0.6-1.2mm.
15. three-dimensional atrial septal puncture component according to claim 14, it is characterised in that the diameter in the hole is 0.85mm.
16. three-dimensional atrial septal puncture component according to claim 1 or 2, it is characterised in that in the expander tube body
From large to small, the length is 8-9mm for lesser one section of diameter for the distal diameter of chambers of the heart room.
17. three-dimensional atrial septal puncture component according to claim 1 or 2, it is characterised in that the expander tube body it is remote
End bilateral is equipped with contact assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820825057.9U CN209091556U (en) | 2018-05-30 | 2018-05-30 | Three-dimensional atrial septal puncture component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820825057.9U CN209091556U (en) | 2018-05-30 | 2018-05-30 | Three-dimensional atrial septal puncture component |
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| CN209091556U true CN209091556U (en) | 2019-07-12 |
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ID=67146201
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| CN201820825057.9U Active CN209091556U (en) | 2018-05-30 | 2018-05-30 | Three-dimensional atrial septal puncture component |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110547857A (en) * | 2018-05-30 | 2019-12-10 | 蔡衡 | Three-dimensional interatrial septum puncture assembly |
| CN111557713A (en) * | 2020-05-12 | 2020-08-21 | 上海微创电生理医疗科技股份有限公司 | Puncture needle assembly and puncture system |
| WO2021031587A1 (en) * | 2019-08-20 | 2021-02-25 | 武汉律动医疗科技有限公司 | Pericardiocentesis device and pericardiocentesis method |
-
2018
- 2018-05-30 CN CN201820825057.9U patent/CN209091556U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110547857A (en) * | 2018-05-30 | 2019-12-10 | 蔡衡 | Three-dimensional interatrial septum puncture assembly |
| WO2021031587A1 (en) * | 2019-08-20 | 2021-02-25 | 武汉律动医疗科技有限公司 | Pericardiocentesis device and pericardiocentesis method |
| CN111557713A (en) * | 2020-05-12 | 2020-08-21 | 上海微创电生理医疗科技股份有限公司 | Puncture needle assembly and puncture system |
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