CN209347171U - A kind of atrial septal puncture system - Google Patents
A kind of atrial septal puncture system Download PDFInfo
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- CN209347171U CN209347171U CN201821341471.9U CN201821341471U CN209347171U CN 209347171 U CN209347171 U CN 209347171U CN 201821341471 U CN201821341471 U CN 201821341471U CN 209347171 U CN209347171 U CN 209347171U
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- section
- seal wire
- atrial septal
- expander
- puncture needle
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Abstract
The application provides a kind of atrial septal puncture system, including sheath, expander, puncture needle and seal wire, the seal wire can travel freely in the puncture needle, the puncture needle can travel freely in the expander, the expander can travel freely in the sheath, and the seal wire includes guidewire body and soft section, one end of the puncturing end on the guidewire body and close to the puncture needle is arranged in the softness section, further includes developing section in the softness section.The atrial septal puncture system of the application can be accurately positioned without using contrast agent, can effectively avoid that there is a situation where Needle localization inaccuracy or puncture force are excessive and left atrial wall is caused to be wounded by stabbing.
Description
Technical field
This application involves medical instruments field, in particular to a kind of atrial septal puncture system.
Background technique
With the development in cardiovascular intervention diagnosis and therapy field, the technology of various intervention diagnosis and therapy operations is carried out increasingly in atrium sinistrum
It is more, for example, catheter ablation, mitral balloon expansion, left atrial appendage occlusion etc. are flutterred in catheter ablation of atrial fibrillation, the room left room Fang Suyu
Deng.Theoretically, into atrium sinistrum approach there are two: puncture atrial septum through atrium dextrum and drive in the wrong direction to left room, but the latter through left room
It drives in the wrong direction after needing to puncture femoral artery by aorta petal and bicuspid valve, the feasibility of catheter manipulation is small, therefore, through femoral vein direct motion
It is the unique channel of the intervention diagnosis and therapies such as above-mentioned atrial fibrillation catheter ablation operation to atrium dextrum again through atrial septum to atrium sinistrum.So room
Thus being spaced puncture technique also becomes the committed step for completing these intervention operations.Since atrial septal puncture position is limited to very much, a left side
The features such as room space is small, roof and left auricle of heart are thin, pressure ratio is adjacent after aorta ascendens, atrial septal puncture technical difficulty is larger, is easy to draw
Play the severe complications such as myocardial perforation, cardiac tamponade, main artery bleeding, body circulation thrombus or air embolism.
Traditional atrial septal puncture process is as follows: Interaurcular septum puncture needle is sent to atrium dextrum oval by sheath and expander
Nest, fixed sheath and expander, push puncture needle puncture fossa ovalis and enter atrium sinistrum, inject contrast agent or pressure by puncture needle
Detection confirms that puncture needle in atrium sinistrum, is keeping puncturing pin position while atrium sinistrum is fixed, delaying forward along puncture needle
The slow component for promoting sheath and expander makes expander front end by atrial septum to atrium sinistrum, exiting Interaurcular septum puncture needle, hands over
J-type seal wire is changed to left superior pulmonary vein, is sent into sheath and expander along seal wire, and is fully advanced sheath forward to a left side along expander
In atrium, expander and J-type seal wire are finally exited.
Traditional Interaurcular septum puncture needle/system has the shortcomings that in common in actual clinical: 1. puncture needles puncture oval
After nest enters atrium sinistrum, contrast agent or monitoring pressure verification are needed.It is found in clinical application, the contrast agent injected by puncture needle
Amount seldom, is often developed unintelligible, there are the risks of erroneous judgement；Meanwhile 1 bottle of contrast agent is used in order to inject 1-2ml contrast agent,
Economic waste is caused, individuals patients are also due to contrast medium sensitivity cannot be used.2. pair many elderly patients, surgical postoperative or
Patient after atrial septum repairing/percutaneous transcatheter closure, after atrial septal puncture success, by traditional exchange J-type seal wire method pushing sheath tube,
Due to support force deficiency, sheath often, if not exchanging J-type seal wire, can not directly be promoted together with puncture needle by atrial septum,
Puncture needle or expander may inertia pierces left atrial wall or the left heart due to moment loses resistance after sheath breaks through atrial septum
Ear causes severe complication.Both increase operating time, also bring risk to patient.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of atrial septal puncture system, which is not necessarily to contrast agent
It can be accurately positioned, can effectively avoid that Needle localization inaccuracy occurs or puncture force is excessive and left atrial wall is caused to be wounded by stabbing
Situation.
A kind of atrial septal puncture system described in the utility model, which is characterized in that including sheath, expander, puncture needle
With seal wire, the seal wire can travel freely in the puncture needle, and the puncture needle can travel freely in the expander, institute
Stating expander can travel freely in the sheath, and the seal wire includes guidewire body and soft section, the softness section setting
On the guidewire body and close to the puncture needle puncturing end one end, it is described softness section on further include developing section.
As a further improvement of the utility model, since atrial septal puncture system described in the utility model is applied to people
Systemic heart operation, thus by the atrial septal puncture system sheath, expander, puncture needle and seal wire distal end be pre-bent to
Curved shape with arc, the bending of curved shape according to the anatomical structure of human heart shape.
Preferably, the soft section on the seal wire head is designed as closing twist shape structure, which can be further ensured that
The flexibility of soft section makes soft section 12 be easy to bend, and intensity ensures to be easy hair when seal wire touches atrial walls rear direction
It is raw to change, guarantee soft section 12 and the contact of atrium sinistrum inner wall smooth.
As the further improvement to seal wire head the softness section and guidewire body connection type, by the soft section with
Guidewire body links together by welding.
Preferably, the long 10cm-50cm of the guidewire length needle length, preferably 15cm-25cm, especially
20cm。
Preferably, the soft segment length is 50mm-200mm, preferably 80mm-120mm, especially 100mm；The development
Partial-length is 30mm-50mm, preferably 30-40mm, especially 30mm.
Since the seal wire will play certain support and protective effect, so seal wire diameter is too small to will lead to seal wire intensity
It is not able to satisfy using needs, so seal wire diameter is set as 0.3mm-0.4mm as the further improvement to the seal wire,
It is preferred that 0.34mm-0.38mm, especially 0.36mm.
Preferably, the material of the developing section is one or more of platinumiridio, platinum-tungsten alloys, gold.
Since the prices such as platinumiridio, platinum-tungsten alloys, gold are valuable, so as the improvement to the developing section, institute
Stating developing section is the coating being coated in the soft section, and the coating contains platinumiridio, platinum-tungsten alloys, one in gold
Kind is several.
Atrial septal puncture system provided by the utility model,
Firstly, seal wire during passing through the inner cavity of expander, can be stretched out the needle point 2cm- of puncture needle by puncture needle
3cm can so effectively prevent puncture needle to scratch expander inner wall.
Secondly as the presence of the softness section and the developing section, so without applying radiography in operating process
Seal wire safely can be sent into left room to push to left pulmonary forward quiet by agent and/or pressure monitoring by puncturing pin inner chamber
Arteries and veins, it is whether correct with this accurate judgement atrial septal puncture position, avoid being sent into because of erroneous judgement completely caused by expander it is serious simultaneously
Disease is sent out, while reducing the economic cost and drug allergy risk of contrast agent；Then sheath, expander and puncture needle along seal wire together
It pushes ahead, until sheath is completely into atrium sinistrum, which is not necessarily to for puncture needle to be exchanged into J seal wire guiding protectives feedings,
Operating procedure is optimized, X-ray exposure time and operating time are shortened, simultaneously as the support of puncture needle, sheath is easy to certainly
Atrium dextrum enters atrium sinistrum by atrial septum, and has soft seal wire to guide and protect in front during walking, and patient is without load
Heart puncture needle or sheath can damage left room wall or left auricle of heart.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is each mate schematic diagram of atrial septal puncture system described in the utility model；
Fig. 2 is the partial enlarged view of one end of puncturing end of each mate structure close to puncture needle in Fig. 1；
Fig. 3 is the structural schematic diagram of seal wire described in the utility model；
Fig. 4 is seal wire head described in the utility model structural schematic diagram.
In figure, 1- seal wire, 11- guidewire body, 12- softness section, 121- developing section, 2- puncture needle, 3- expander, 4- sheath
Pipe.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without making creative work
Range.
It elaborates with reference to the accompanying drawing to the specific embodiment of the utility model atrial septal puncture system.
As shown in Figures 1 to 4, including sheath 4, expander 3, puncture needle 2 and seal wire 1, seal wire 1 can be in puncture needles 2 certainly
By walking, puncture needle 2 can travel freely in expander 3, and expander 3 can travel freely in sheath 4.
Seal wire 1 includes that the distal end of guidewire body 11 is arranged in guidewire body 11 and soft section 12, soft section 12, soft
It further include developing section 121 in section 12.
Since atrial septal puncture system described in the utility model is performed the operation applied to human heart, as the utility model reality
The preferred embodiment for applying example, by the sheath 4 in atrial septal puncture system described in the utility model, expansion it can be seen from Fig. 1 and Fig. 2
Prop 3, puncture needle 2 and 1 distal end of seal wire are pre-bent to the curved shape with arc, and the bending of curved shape is according to the human body heart
The shape of dirty anatomical structure.
As the further improvement of the utility model embodiment, as shown in Figure 4, the soft section on 1 head of seal wire will be located at
12 are set as closing twist shape structure, and the design of the structure can further improve the pliability of soft section 12, make soft section 12 easily
In bending, intensity ensures to be easy to happen change when seal wire touches atrial walls rear direction, guarantees soft section 12 and atrium sinistrum
Inner wall smooth contact.
The utility model softness section 12 is connected to one by way of welding, bonding or mechanical connection with guidewire body 11
It rises.
Preferably, the long 10cm-50cm of the guidewire length needle length, preferably 15cm-25cm, especially
20cm。
Preferably, the soft segment length is 50mm-200mm, preferably 80mm-120mm, especially 100mm；The development
Partial-length is 30mm-50mm, preferably 30-40mm, especially 30mm.
Since the seal wire will play certain support and protective effect, so seal wire diameter is too small to will lead to seal wire intensity
It is not able to satisfy using needs, so seal wire diameter is set as 0.3mm-0.4mm as the further improvement to the seal wire,
It is preferred that 0.34mm-0.38mm, especially 0.36mm.
Developing section 121 described in the utility model is made of platinumiridio.
Developing section 121 described in the utility model is made of platinum-tungsten alloys.
Developing section 121 described in the utility model is made of platinumiridio and gold.
Developing section 121 described in the utility model is made of platinumiridio, platinum-tungsten alloys and gold.
Since the prices such as platinumiridio, platinum-tungsten alloys, gold are valuable, so as the improvement to the developing section 121,
The developing section 121 is the coating being coated in the soft section, and the coating contains platinumiridio.
Coating described in the utility model contains platinumiridio and platinum-tungsten alloys.
Coating described in the utility model contains platinumiridio, platinum-tungsten alloys and gold.
During carrying out clinical operation, sheath 4 and expander 3 are first sent to superior vena cava through femoral vein, band is led
The Interaurcular septum puncture needle 2 of silk 1 is sent to 3 apical segment of expander (in this process seal wire 1 stretching needle point 2cm-3cm protection expander 3
Layer), seal wire 1 is retracted into puncture needle 2, and the entire lancing system that then retracts to fossa ovalis, fixed sheath 4 and expander 3, wear by push
After pricker 2 punctures fossa ovalis, seal wire 1 is sent out puncture needle 2 and enters left room, since the distal end of seal wire 1 has by fixed puncture needle 2
Soft section 12 and developing section 121, so seal wire 1 can safely be admitted to left side pulmonary vein, (x-ray shows that seal wire 1 is sent to a left side
Outside the heart shadow of side), and will not mechanical damage left room wall, left auricle of heart or pulmonary vein etc., the process is without using contrast agent and/or pressure
Monitoring, can be avoided and be sent into severe complication caused by expander because of erroneous judgement, reduce and make while improving operation safety
The economic cost and drug allergy risk of shadow agent；After the completion of positioning, under the guide and protection of seal wire 1, by puncture needle 2 and sheath
4 expander, 3 system pushed atrial septum together and enters left room, and last expander 3, puncture needle 2 and the seal wire 1 of exiting simultaneously (enters
After left room, seal wire head softness section 12 is retained in always outside puncture needle 2).The process is worn due to having the guidance and protection of seal wire 1
Pricker 2 and 4 expander of sheath, 3 system can push together atrial septum and enter left room, overcome traditional piercing method because of support force
Deficiency causes sheath 4 by the disadvantage of atrial septum difficulty, in addition, handing over puncture needle 2 without traditional when sheath 4 being sent to enter left room
It changes J seal wire guiding protectives into be sent into, optimizes operating procedure, shorten X-ray exposure time and operating time, wear atrial septum
Pierce it is safer, quick, easy with it is effective.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (9)
1. a kind of atrial septal puncture system, which is characterized in that including sheath, expander, puncture needle and seal wire, the seal wire can be
It is travelled freely in the puncture needle, the puncture needle can travel freely in the expander, and the expander can be in the sheath
It is travelled freely in pipe,
Wherein, the seal wire includes guidewire body and soft section, and the softness section setting is on the guidewire body and close
One end of the puncturing end of the puncture needle, it is described softness section on further include developing section.
2. atrial septal puncture system according to claim 1, it is characterised in that: the sheath, expander, puncture needle and lead
One end equal pre-bending camber of the silk by the soft section.
3. atrial septal puncture system according to claim 2, it is characterised in that: the softness section is closing twist shape knot
Structure.
4. atrial septal puncture system according to claim 3, it is characterised in that: the softness section and the guidewire body are logical
The mode for crossing welding links together.
5. atrial septal puncture system as claimed in any of claims 1 to 4, it is characterised in that: the guidewire length
It is 10cm-50cm longer than the needle length.
6. atrial septal puncture system as claimed in any of claims 1 to 4, it is characterised in that: the softness segment length
Degree is 50mm-200mm；The developing section length is 30mm-50mm.
7. atrial septal puncture system as claimed in any of claims 1 to 4, it is characterised in that: the seal wire it is straight
Diameter is 0.3mm-0.4mm.
8. atrial septal puncture system as claimed in any of claims 1 to 4, it is characterised in that: the developing section
Material be one or more of platinumiridio, platinum-tungsten alloys, gold.
9. atrial septal puncture system as claimed in any of claims 1 to 4, it is characterised in that: the developing section
For the coating being coated in the soft section, the coating contains one or more of platinumiridio, platinum-tungsten alloys, gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821341471.9U CN209347171U (en) | 2018-08-20 | 2018-08-20 | A kind of atrial septal puncture system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821341471.9U CN209347171U (en) | 2018-08-20 | 2018-08-20 | A kind of atrial septal puncture system |
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| Publication Number | Publication Date |
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| CN209347171U true CN209347171U (en) | 2019-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821341471.9U Active CN209347171U (en) | 2018-08-20 | 2018-08-20 | A kind of atrial septal puncture system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113229865A (en) * | 2021-04-21 | 2021-08-10 | 启晨(上海)医疗器械有限公司 | Conveying device for atrium shunt |
-
2018
- 2018-08-20 CN CN201821341471.9U patent/CN209347171U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113229865A (en) * | 2021-04-21 | 2021-08-10 | 启晨(上海)医疗器械有限公司 | Conveying device for atrium shunt |
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