CN208823060U - A kind of novel guiding catheter for aorta petal across valve - Google Patents
A kind of novel guiding catheter for aorta petal across valve Download PDFInfo
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- CN208823060U CN208823060U CN201821135282.6U CN201821135282U CN208823060U CN 208823060 U CN208823060 U CN 208823060U CN 201821135282 U CN201821135282 U CN 201821135282U CN 208823060 U CN208823060 U CN 208823060U
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- catheter
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- inner catheter
- aorta petal
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- 210000000709 aorta Anatomy 0.000 title claims abstract description 42
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 206010002906 aortic stenosis Diseases 0.000 description 9
- 230000004083 survival effect Effects 0.000 description 6
- 208000024891 symptom Diseases 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 206010002383 Angina Pectoris Diseases 0.000 description 3
- 210000001765 aortic valve Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010019280 Heart failures Diseases 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000002308 calcification Effects 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003319 supportive effect Effects 0.000 description 2
- 206010042772 syncope Diseases 0.000 description 2
- 208000027896 Aortic valve disease Diseases 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010013971 Dyspnoea exertional Diseases 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000002429 anti-coagulating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 210000005240 left ventricle Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007425 progressive decline Effects 0.000 description 1
- 208000002815 pulmonary hypertension Diseases 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000552 rheumatic effect Effects 0.000 description 1
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Abstract
The utility model relates to a kind of novel guiding catheter for aorta petal across valve, including outer catheter, fixing layer inner catheter and across valve layer inner catheter, the fixing layer inner catheter, across valve layer inner catheter are set in the outer catheter；Fixing layer inner catheter one end separates angled setting with across valve layer inner catheter, and the fixing layer inner catheter is equipped with elastic device with across the valve layer inner catheter place of separation.This is used for novel guiding catheter of the aorta petal across valve, simple and ingenious structure, by the way that fixing layer inner catheter is separated angled setting with across valve layer inner catheter one end, and elastic device is set between the fixing layer inner catheter and across valve layer inner catheter at separation, so that the novel guiding catheter adaptability is excellent, have a wide range of application, convenient for operation, it can reduce the complexity of patient's operation, reduce through difficulty of the guiding catheter seal wire across valve, be conducive to the guiding catheter and promote and apply in the market.
Description
Technical field
It is specifically a kind of to be led for aorta petal across the novel guide of valve the utility model relates to the field of medical instrument technology
Pipe.
Background technique
Aorta petal is semilunar valve, and between left ventricle left ventricular outflow tract view and aorta, blood flow can pass through aorta
Flow forward, closing Shi Zeke prevent reflux to valve in the clear, and aorta petal is in center, with each chambers of the heart and valve
It is in close relations.
Aortic stenosis refers to the aorta petal mouth face due to rheumatic, congenital abnormality and senile calcification etc.
Product is narrow.Aortic stenosis can undergo quite long asymptomatic stage, but be in progress if occurring rapidly, if performing the operation not in time
Intervene, 2 years survival rates only 20~50%.The classical symptom of general aortic valve disease is exertional dyspnea, angina pectoris and swoons
It faints.Ultrasound electrocardiogram is the evaluation means for diagnosing aortic stenosis first choice.
Aortic stenosis in patients early stage is in latence mostly, most of asymptomatic, or some non-specificity occurs
Performance such as palpitaition, dizziness and symptom out of strength, with the progress of aortic stenosis degree, the effective orifice area of patient is more next
It is smaller, in fact it could happen that the exercise tolerance of progressive declines.Aortic stenosis in patients can hide to close to 60 years old and just show
The clinical symptoms (angina pectoris, syncope, heart failure) of work, and survival rate is worsened after there is symptom, such as without positive
, there is the aortic stenosis in patients life span average out to of labor angina symptom 5 years, the master of pre-syncopal symptoms occurs in treatment
The narrow survival of patients time average out to of arterial valve 3 years, and the patient of severe heart failure occur, life span only 1.5-2, has
Patient's median survival time that severe aortic stenosis merges pulmonary hypertension is only 436 days.U.S. National Institutes (NIH)
There is the severe aortic stenosis in patients of clinical symptoms in statistical result showed, such as without surgical operation or percutaneous aorta
Valved prosthesis (transcatheter aortic valve replacement, TAVR), 5 years survival rates still deficiency half
(48%), 10 years survival rates are even more less than 10%.
Refer to through conduit aorta petal implantation (TAVR) and assembled aorta petal is placed to aortic root through conduit
Portion substitutes original aorta petal, functionally completes the displacement of aorta petal.This technology is concerned from once being born, closely
Already become Interventional cardiology one bright " star " within several years.
It passes through in the surgical procedure of conduit aortic valve replacement, can routinely first pass through guiding catheter for seal wire across narrow
Narrow aorta petal is laid the foundation with constructing an access for subsequent sequence of operations.But currently used guiding catheter
It is the conduit for being directed to calcification score and designing.Because aortic valve root and aorta ascendens morphosis are different, and existing finger
Operation difficulty is big in the small operating process of guiding tube adaptation range, thus it is higher to patient's technical requirements, it is difficult disposable suitable in place
Sharply by guiding catheter by seal wire across aorta petal, it usually needs multi-pass operation is just able to achieve, and increases relevant operation wind
It also will increase possible complication while dangerous.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the utility model provides one kind for aorta petal across valve
Novel guiding catheter, the guiding catheter structure is simply ingenious, convenient for operation, adaptability is good, can effectively mitigate the pain of patient
Bitterly, be conducive to the guiding catheter in the popularization and application of the field of medical instrument technology.
In order to achieve the above-mentioned object of the invention, the utility model uses following technical scheme: one kind is for aorta petal across valve
Novel guiding catheter, including outer catheter, fixing layer inner catheter and across valve layer inner catheter, the fixing layer inner catheter, across valve layer
Inner catheter is set in the outer catheter；Fixing layer inner catheter one end separates angled setting with across valve layer inner catheter, described
Fixing layer inner catheter is equipped with elastic device with across the valve layer inner catheter place of separation.
As a kind of preferred embodiment of the utility model, across the valve layer inner catheter is installed far from fixing layer inner catheter side
There are lines.
As a kind of preferred embodiment of the utility model, the fixing layer inner catheter separates one end with across valve layer inner catheter and is
Proximal end, the other end are distal end, and the fixing layer inner catheter distal end is connected to fixing layer guide coupling.
As a kind of preferred embodiment of the utility model, across valve layer inner catheter distal end connecting conduit seat.
As a kind of preferred embodiment of the utility model, the outer catheter is connected to catheter block.
As a kind of preferred embodiment of the utility model, the catheter block is equipped with connector, lines one end connection
In connector.
As a kind of preferred embodiment of the utility model, the connector is rotary connector.
As a kind of preferred embodiment of the utility model, the lines are made of stainless steel material.
As a kind of preferred embodiment of the utility model, the lines outer surface is covered with polytetrafluoroethylene film layer.
As a kind of preferred embodiment of the utility model, the elastic device is spring.
Compared with prior art, the utility model has the beneficial effects that being used for aorta petal across valve in the utility model
Novel guiding catheter, simple and ingenious structure, by the way that fixing layer inner catheter is separated angled set with across valve layer inner catheter one end
It sets, and elastic device is set between the fixing layer inner catheter and across valve layer inner catheter at separation, so that the novel guiding catheter
Adaptability is excellent, has a wide range of application, convenient for operation, can reduce patient operation complexity, reduce by guiding catheter seal wire across
The difficulty of valve is conducive to the guiding catheter and promotes and apply in the market.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that novel guiding catheter of the aorta petal across valve is used in embodiment；
Fig. 2 is the structure enlargement diagram in Fig. 1 at A；
Fig. 3 is the structure enlargement diagram in Fig. 1 at B；
Fig. 4 is the structural schematic diagram that novel guiding catheter of the aorta petal across valve is used in embodiment；
Fig. 5 is for aorta petal in embodiment across the structure sectional view at catheter block in the novel guiding catheter of valve；
Fig. 6 is the use state diagram that novel guiding catheter of the aorta petal across valve is used in embodiment.
Appended drawing reference: 1, outer catheter；2, fixing layer inner catheter；3, across valve layer inner catheter；4, elastic device；5, lines；6,
Catheter block；7, fixing layer guide coupling；8, connector.
Specific embodiment
It elaborates with reference to the accompanying drawing to the utility model embodiment.
Embodiment: as shown in Figures 1 to 6, a kind of novel guiding catheter for aorta petal across valve, including it is outer catheter 1, solid
Given layer inner catheter 2 and across valve layer inner catheter 3, fixing layer inner catheter 2, across valve layer inner catheter 3 are arranged in above-mentioned outer catheter 1, and
It is arranged along 1 edge of outer catheter, can be led by changing the direction of outer catheter 1 to change in fixing layer inner catheter 2 and across valve layer
The convenience of pipe 3 operates convenient for medical staff.
2 one end of fixing layer inner catheter separates angled setting with across valve layer inner catheter 3, and fixing layer inner catheter 2 with across
Elastic device 4 is equipped at 3 separation of valve layer inner catheter, the spacing for making fixing layer inner catheter 2 separate place with across valve layer inner catheter 3 can
It adjusts, the main lobe to cope with different situations keeps the guiding catheter scope of application wider across valve.
Outer catheter 1 (is irradiated in hospital with X-ray, conduit is white on X imaging film, is used for X using full radiography TPU raw material
Catheter position is determined under light) it is made, 20%~50%(of contrast agent adding proportion is weight ratio, contrast agent such as barium sulfate, by it herein
It is tuned into that suspension is swallowed or bowel lavage is for gastrointestinal image), contrasting effects are good, and 1 internal-and external diameter ratio of outer catheter is 0.58~
0.68, it can guarantee that supportive is good, convenient for setting pipe.
Elastic device 4 can be spring, and structure is simple, and use cost is low, can be effectively reduced the manufacturing cost of guiding catheter,
And then reduce the use cost of patient.
Across valve layer inner catheter 3 is equipped with lines 5 far from 2 side of fixing layer inner catheter, and lines 5 can simply lead for structure
Across valve layer guiding catheter proximal end is directed at narrow aorta petal mouth in order to facilitate medical staff by silk, and lines 5 use stainless steel
Matter is made, preferably medical stainless steel (main component is+10% nickel of 18% chromium to make) can antirust, and it is durable against corrosion, use
Effect is good, and when sending conduit forward, elastic device 4 is in zero tensional state, in outer catheter 1, fixing layer inner catheter 2 and across valve layer
Conduit 3 is in a straight line, and outer catheter 1, fixing layer inner catheter 2 and across valve layer inner catheter 3 push softly, makes the best use of the situation, thoroughly
Depending on lower observation trend, shadowgraph technique can be cooperated to confirm when necessary.
5 outer surface of lines can also be covered with polytetrafluoroethylene film layer, it is therefore an objective to keep seal wire more smooth, reduce and conduit
Coefficient of friction, more good seal wire can be handled by heparin, in addition to frictional force is small, also have anticoagulative ability.
It is proximal end that fixing layer inner catheter 2, which separates one end with across valve layer inner catheter 3, is led in fixing layer inner catheter 2 and across valve layer
The other end that pipe 3 separates one end is distal end, and 2 distal end of fixing layer inner catheter is connected to fixing layer guide coupling 7, fixing layer conduit
Connector 7 plays a supportive role, and fixing layer guide coupling 7 is exposed at outside patient body, hand-held convenient for operator.In fixing layer
Contain harder seal wire in conduit 2, facilitates fixing layer inner catheter 2 to play the role of relatively-stationary, in subsequent across valve layer inner catheter 3
Adjustment in, the position of fixing layer inner catheter 2 is opposite without obvious displacement.
Across valve 3 distal end of layer inner catheter is connected on catheter block 6, and the setting of catheter block 6 is convenient for across valve 3 one end of layer inner catheter
It is fixed, 1 internal shift of outer catheter in across valve layer inner catheter 3 is avoided, influences to operate.
Outer catheter 1 is connected on catheter block 6, and convenient for the fixation of 1 one end of outer catheter, same catheter block 6 is exposed at patient body
Outside, hand-held convenient for operator.
Connector 8 is installed on catheter block 6,5 one end of lines is connected on connector 8, and connector 8 is rotary connector,
External screw thread can be set on lines 5, internal screw thread is set on connector 8, make to be threadedly coupled between lines 5 and connector 8.
It is fewer that narrow aorta petal mouth can hold the area passed through, aorta petal mouth and each angle of aorta ascendens also because
People and different, the complicated multiplicity of anatomical structure can pass through lines 5 and pull across valve layer inner catheter by the setting of rotary connector
3, under the balance of elastic device 4, based on fixing layer inner catheter 2, different angles is adjusted, so that the guide of across valve layer is led
Pipe proximal end is directed at narrow aorta petal mouth
Novel guiding catheter of the aorta petal across valve, simple and ingenious structure, by by fixing layer are used in the present embodiment
Inner catheter 2 separates angled setting with across valve 3 one end of layer inner catheter, and in the fixing layer inner catheter 2 at separation and across valve layer
Elastic device 4 is arranged between conduit 3 to have a wide range of application so that the novel guiding catheter adaptability is excellent, convenient for operation, can drop
The complexity of low patient's operation, reduces through difficulty of the guiding catheter seal wire across valve, is conducive to the guiding catheter in the market
It promotes and applies.
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.
Although appended drawing reference in figure: 1, outer catheter is used more herein；2, fixing layer inner catheter；3, it is led in across valve layer
Pipe；4, elastic device；5, lines；6, catheter block；7, fixing layer guide coupling；8, the terms such as connector, but be not precluded and make
A possibility that with other terms.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；
It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
Claims (10)
1. a kind of novel guiding catheter for aorta petal across valve, it is characterised in that: including being led in outer catheter (1), fixing layer
(2) and across valve layer inner catheter (3) are managed, the fixing layer inner catheter (2), across valve layer inner catheter (3) are set to the outer catheter (1)
It is interior；Described fixing layer inner catheter (2) one end separates angled setting, the fixing layer inner catheter (2) with across valve layer inner catheter (3)
Elastic device (4) are equipped with across valve layer inner catheter (3) place of separation.
2. a kind of novel guiding catheter for aorta petal across valve according to claim 1, it is characterised in that: it is described across
Valve layer inner catheter (3) is equipped with lines (5) far from fixing layer inner catheter (2) side.
3. a kind of novel guiding catheter for aorta petal across valve according to claim 2, it is characterised in that: described solid
It is proximal end that given layer inner catheter (2), which separates one end with across valve layer inner catheter (3), and the other end is distal end, the fixing layer inner catheter (2)
Distal end is connected to fixing layer guide coupling (7).
4. a kind of novel guiding catheter for aorta petal across valve according to claim 3, it is characterised in that: it is described across
Valve layer inner catheter (3) distal end connecting conduit seat (6).
5. a kind of novel guiding catheter for aorta petal across valve according to claim 4, it is characterised in that: described outer
Conduit (1) is connected to catheter block (6).
6. a kind of novel guiding catheter for aorta petal across valve according to claim 4, it is characterised in that: described to lead
Tube socket (6) is equipped with connector (8), and described lines (5) one end is connected to connector (8).
7. a kind of novel guiding catheter for aorta petal across valve according to claim 6, it is characterised in that: the company
Connecing device (8) is rotary connector.
8. a kind of novel guiding catheter for aorta petal across valve according to claim 2, it is characterised in that: the line
Item (5) is made of stainless steel material.
9. a kind of novel guiding catheter for aorta petal across valve according to claim 8, it is characterised in that: the line
Item (5) outer surface is covered with polytetrafluoroethylene film layer.
10. a kind of novel guiding catheter for aorta petal across valve according to claim 1, it is characterised in that: described
Elastic device (4) is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821135282.6U CN208823060U (en) | 2018-07-18 | 2018-07-18 | A kind of novel guiding catheter for aorta petal across valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821135282.6U CN208823060U (en) | 2018-07-18 | 2018-07-18 | A kind of novel guiding catheter for aorta petal across valve |
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| Publication Number | Publication Date |
|---|---|
| CN208823060U true CN208823060U (en) | 2019-05-07 |
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ID=66306655
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821135282.6U Active CN208823060U (en) | 2018-07-18 | 2018-07-18 | A kind of novel guiding catheter for aorta petal across valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852559A (en) * | 2018-07-18 | 2018-11-23 | 浙江大学 | Novel guiding catheter for aorta petal across valve |
-
2018
- 2018-07-18 CN CN201821135282.6U patent/CN208823060U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852559A (en) * | 2018-07-18 | 2018-11-23 | 浙江大学 | Novel guiding catheter for aorta petal across valve |
| CN108852559B (en) * | 2018-07-18 | 2024-02-20 | 浙江大学 | Novel guiding catheter for aortic valve transvalve |
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