CN107510527A - A kind of trunk stent-expansion shaping device - Google Patents
A kind of trunk stent-expansion shaping device Download PDFInfo
- Publication number
- CN107510527A CN107510527A CN201710904055.9A CN201710904055A CN107510527A CN 107510527 A CN107510527 A CN 107510527A CN 201710904055 A CN201710904055 A CN 201710904055A CN 107510527 A CN107510527 A CN 107510527A
- Authority
- CN
- China
- Prior art keywords
- water pocket
- hollow pipe
- trunk
- column water
- shaping device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007493 shaping process Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 210000000709 aorta Anatomy 0.000 claims description 19
- 210000002376 aorta thoracic Anatomy 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims 1
- 238000002224 dissection Methods 0.000 abstract description 7
- 230000002980 postoperative effect Effects 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000004393 prognosis Methods 0.000 abstract 1
- 230000002631 hypothermal effect Effects 0.000 description 4
- 230000004087 circulation Effects 0.000 description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000025494 Aortic disease Diseases 0.000 description 1
- 208000002251 Dissecting Aneurysm Diseases 0.000 description 1
- 208000010496 Heart Arrest Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 206010002895 aortic dissection Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000001361 intraarterial administration Methods 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 210000003270 subclavian artery Anatomy 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000004026 tunica intima Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
Abstract
The invention provides a kind of trunk stent-expansion shaping device, column water pocket including hard conduit and positioned at hard conduit distal surface, the near-end of hard conduit is hollow pipe, its distal end is reality structure, the distal end of hollow pipe is provided with hollow tube opening, hollow tube opening is directly opened on the intracavitary of column water pocket, the proximal threads of hollow pipe connect hollow pipe joint, hollow pipe seal connects water injection pipe, pressure monitor is fixedly mounted on the stage casing of water injection pipe, structure of the present invention is concise, it is easy to use, by ensureing that trunk support normal expansion and the support for meeting dissection are moulding to the water filling of column water pocket, improve operation safety and improve postoperative nearly prognosis situation at a specified future date.
Description
Technical field
The present invention relates to medical device technical field, specially a kind of trunk stent-expansion shaping device.
Background technology
Acute Stanford A type dissection of aorta is that a kind of morbidity is anxious, progress is fast, the death rate is high, operating difficulty is big, pre-
Poor Acute Aortic disease afterwards.The pathologic, physiologic of dissection of aorta is aortic tunica intima rupture, and blood flow rushes in medial,
Medial is caused to divide to form true and false chamber.Morbidity 1~3 day in the death rate per hour be about 1%~2%, 50% patient 1
It is dead in week, it is dead in 90% patient 1 year.The internal medicine conservative treatment death rate is up to 50%, at the same time, because of surgical operation difficulty
High, complex operation and Aortic Dissection are complicated, and operative mortality rate is also up to 15%~35%.
Domestic and foreign scholars try to explore modus operandi, the sustainer that Beijing An Zhen hospital professor Sun Lizhong initiates in the world
Bow is replaced plus support " trunk " operation (i.e. " Sun Shi " performs the operation) is the commonly used modus operandi in China.Adopted in " Sun Shi " surgery
Aortic arch and its three vessel branches (truncus brachiocephalicus, Zuo Jing are replaced with descending artificial four bifurcated vessels of Deep Hypothermia Circulatory Arrest
Total artery, left subclavian artery), and the trunk Stent of row aorta distal end simultaneously, stop while opening the arch of aorta
Circulation, arch of aorta distal end recover to circulate again after rebuilding well.The trunk support used in art is using memory alloy wires such as NiTis
The overlay film frame formed is woven, can be expanded automatically after the true chamber of trunk stenter to implant dissection of aorta.Tear in dissection of aorta middle level
Split, cause false chamber substantially to expand and with a large amount of thrombosis, and true lumen chamber substantially narrows.The above situation has a strong impact on trunk
The automatic expansion of support, causes postoperative true chamber increase unobvious, and severe postoperative influences the vital tissue devices such as liver, kidney, enteron aisle
Official irrigates, and causes corresponding complication, and severe patient often results in operative failure.At the same time, the trunk support of prior art is adopted
It is straight tubular design, and the equal non-straight structure of the dissection of the arch of aorta and isthmus.If memory alloy stent is implanted with giving birth to
Manage the arch of aorta of crooked radian and the wide-angle corner of aortic isthmus, the then shape after memory alloy stent is expanded automatically
Shape can not be bonded the anatomical structure of sustainer completely, postoperative that trunk support can be caused to have relative motion to rub with aorta wall inwall
Wipe, damage aorta wall, cause intra-arterial to leak to be formed, need surgical intervention again if necessary, severe patient's aortic perforation goes out greatly
Blood threat to life.So in art ensure trunk support normal expansion and it is moulding be one of urgent problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of trunk stent-expansion shaping device, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：A kind of trunk stent-expansion shaping device, including hard
Conduit and the column water pocket positioned at hard conduit distal surface, the near-end of the hard conduit is hollow pipe, and its distal end is reality
Structure, the distal end of the hollow pipe are provided with hollow tube opening, and the hollow tube opening is directly opened on the column water pocket
Intracavitary, the proximal threads of the hollow pipe connect hollow pipe joint, the hollow pipe seal connection water injection pipe, the water filling
Pressure monitor is fixedly mounted on the stage casing of pipe.
Preferably, the entirety of the hard conduit is in inverted " j " type structure, and the hard conduit is moderate using hardness and has
Certain flexible steel are made.
Preferably, the column water pocket is cylinder-like structure, overall in the inverted " j " type knot to match with the hard conduit
Structure, its slightly shorter one section is located at descending aorta near-end, the entire length of the column water pocket positioned at arch of aorta distal end, remainder
Using five kinds of specifications such as three kinds of specifications such as 60mm, 80mm, 100mm, its diameter 24mm, 26mm, 28mm, 30mm, 32mm.
Preferably, the internal pressure of the column water pocket is controlled in safe range, and the near-end of described column water pocket should
Away from trunk mount proximal end edge 1cm~2cm, the region that trunk support is not bonded with the column water pocket is reserved.
Preferably, the end face of the hollow pipe joint is provided with through hole, the through hole fixed connection and sealing part, the seal
The water injection pipe is socketed with, the seal, which uses, has elastomeric medical macromolecular materials.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, structure of the present invention is concise, easy to use, by the complete diastole of column water pocket water filling trunk support and tight
Aorta wall is affixed on, avoids trunk support that relative motion friction occurs with sustainer inwall, aorta wall damage is reduced, improves hand
Art security and quickening postoperative rehabilitation；
2nd, column water pocket length of the invention is longer, and the area being bonded with sustainer is larger, blocks reliable and stable so that as
The circulation time that stops of nose stretcher shortens dramatically, and can avoid relatively low profound hypothermia, in this embodiment it is not even necessary to which profound hypothermia, only middle low temperature is with regard to energy
Meet operation needs, so as to shorten cooling and rewarming and cardiopulmonary bypass time, reduce caused by long period extracorporal circulatory system
The complication that complication and profound hypothermia operation are brought.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is hollow pipe joint structure schematic diagram in the present invention；
Fig. 3 is structural representation when present invention operation uses.
In figure：1 hard conduit, 2 column water pockets, 3 hollow pipes, 4 hollow tube openings, 5 hollow pipe joints, 6 water injection pipes, 7 pressures
Power monitor, 8 seals, 9 trunk supports, 10 arch of aortas, 11 descending aortas.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：A kind of trunk stent-expansion shaping device, including hard are led
Pipe 1 and the column water pocket 2 positioned at the distal surface of hard conduit 1, the entirety of hard conduit 1 are in inverted " j " type structure, hard conduit 1
It is moderate using hardness and be made with certain flexible steel.Column water pocket 2 is cylinder-like structure, is in integrally and hard
The inverted " j " type structure that conduit 1 matches, its slightly shorter one section is located at descending aorta 11 positioned at the distal end of the arch of aorta 10, remainder
Near-end, the entire length of column water pocket 2 using three kinds of specifications such as 60mm, 80mm, 100mm, its diameter 24mm, 26mm, 28mm,
Five kinds of specifications such as 30mm, 32mm.The internal pressure of column water pocket 2 controlled in the range of 6KPa~8KPa, column water pocket 2
Near-end should reserve the region that trunk support 100 is not bonded with column water pocket 2 away from the near-end edge 1cm~2cm of trunk support 9.
The near-end of hard conduit 1 is hollow pipe 3, and its distal end is reality structure, and the distal end of hollow pipe 3 is provided with hollow pipe and opened
Mouth 4, hollow tube opening 4 are directly opened on the intracavitary of column water pocket 2, and the proximal threads of hollow pipe 3 connect hollow pipe joint 5, side
Just dismounting is cleared up.Hollow pipe joint 5 is tightly connected water injection pipe 6, and the end face of hollow pipe joint 5 is provided with through hole, the through hole
Fixed connection and sealing part 8, seal 8 are socketed with water injection pipe 6, and seal 8, can using having elastomeric medical macromolecular materials
So that the port of export of water injection pipe 6 is firmly fixed in hollow pipe joint 5, the outlet end position of water injection pipe 6 is avoided to leak.
Pressure monitor 7 is fixedly mounted on the stage casing of water injection pipe 6, control is provided with pressure monitor 7 into the hydraulic pressure of column water pocket 2
Control valve, prevents the internal pressure of column water pocket 2 excessive or too small phenomenon occurs.
Operation principle：By injecting sterile physiological saline into water injection pipe 6, pass through the control of control pressure monitor 7
Valve gradually steps up the pressure in column water pocket 2, and keeps the interior pressure of column water pocket 2 in safe range.In operation, such as accompanying drawing
Shown in 3, after implantation trunk support 9, implantation column water pocket 2, the saline injection of column water pocket 2 makes trunk support while expansion
Complete diastole is simultaneously close to the vascular wall of aorta wall, compresses dissection of aorta vacation chamber.Column water pocket 2 and the distal end of hard conduit 1
Between to be sealedly and fixedly connected, the plasticity of column water pocket 2 and the distal portions of hard conduit 1 is consistent.Make post so as to reach
2 whole drum surface of shape water pocket is bonded sustainer inwall, reaches the homogeneity of expansion trunk support 9 without damaging active blood vessel wall.
When column water pocket 2, trunk support 9 and the homogeneous fitting of sustainer inwall three, and after pressure reaches standard in column water pocket 2, post
Shape water pocket 2 can block sustainer, the perfusion of the femoral artery lower part of the body of can recovery at once, when reducing the ischemic of the lower part of the body completely
Between.It is larger in the area of sustainer fitting and the length of column water pocket 2 is longer, block reliable and stable.This operating process only needs 1min
~2min, greatly shortens and stops circulation time.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of trunk stent-expansion shaping device, including hard conduit (1) and the columnar water positioned at hard conduit (1) distal surface
Capsule (2), it is characterised in that：The near-end of the hard conduit (1) is hollow pipe (3), and its distal end is reality structure, the hollow pipe
(3) distal end is provided with hollow tube opening (4), and the hollow tube opening (4) is directly opened on the chamber of the column water pocket (2)
Interior, the proximal threads of the hollow pipe (3) connect hollow pipe joint (5), and the hollow pipe joint (5) is tightly connected water injection pipe
(6) pressure monitor (7), is fixedly mounted on the stage casing of the water injection pipe (6).
A kind of 2. trunk stent-expansion shaping device according to claim 1, it is characterised in that：The hard conduit (1)
Overall is in inverted " j " type structure, and the hard conduit (1) is moderate using hardness and is made with certain flexible steel.
A kind of 3. trunk stent-expansion shaping device according to claim 1, it is characterised in that：The column water pocket (2) is
Cylinder-like structure, overall in the inverted " j " type structure to match with the hard conduit (1), its slightly shorter one section is located at the arch of aorta
(10) distal end, remainder be located at descending aorta (11) near-end, the entire length of the column water pocket (2) use 60mm, 80mm,
Five kinds of specifications such as three kinds of specifications such as 100mm, its diameter 24mm, 26mm, 28mm, 30mm, 32mm.
A kind of 4. trunk stent-expansion shaping device according to claim 1, it is characterised in that：The column water pocket (2)
Internal pressure is controlled in safe range, the near-end of described column water pocket (2) should away from trunk support (9) near-end edge 1cm~
2cm, reserve the region that trunk support (9) is not bonded with the column water pocket (2).
A kind of 5. trunk stent-expansion shaping device according to claim 1, it is characterised in that：The hollow pipe joint (5)
End face be provided with through hole, the through hole fixed connection and sealing part (8), the seal (8) is socketed with the water injection pipe (6), institute
Stating seal (8) and using has elastomeric medical macromolecular materials.
A kind of 6. trunk stent-expansion shaping device according to claim 1, it is characterised in that：The pressure monitor (7)
On be provided with control into column water pocket (2) hydraulic pressure control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710904055.9A CN107510527A (en) | 2017-09-29 | 2017-09-29 | A kind of trunk stent-expansion shaping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710904055.9A CN107510527A (en) | 2017-09-29 | 2017-09-29 | A kind of trunk stent-expansion shaping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107510527A true CN107510527A (en) | 2017-12-26 |
Family
ID=60726828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710904055.9A Pending CN107510527A (en) | 2017-09-29 | 2017-09-29 | A kind of trunk stent-expansion shaping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107510527A (en) |
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| CN208958422U (en) * | 2017-09-29 | 2019-06-11 | 中山大学附属第一医院 | A kind of trunk stent-expansion shaping device |
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| US5785685A (en) * | 1994-09-16 | 1998-07-28 | Scimed Life Systems, Inc. | Balloon catheter with improved pressure source |
| CN2518466Y (en) * | 2002-01-25 | 2002-10-30 | 同济大学 | Support implanting device for use in aortic dissecting and arch dissecting |
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