CN109330742A - A kind of support system - Google Patents
A kind of support system Download PDFInfo
- Publication number
- CN109330742A CN109330742A CN201810899154.7A CN201810899154A CN109330742A CN 109330742 A CN109330742 A CN 109330742A CN 201810899154 A CN201810899154 A CN 201810899154A CN 109330742 A CN109330742 A CN 109330742A
- Authority
- CN
- China
- Prior art keywords
- sacculus
- bracket
- support system
- dilating catheter
- same pressure
- 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
- 230000000916 dilatatory effect Effects 0.000 claims abstract description 35
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims 1
- 210000004204 blood vessel Anatomy 0.000 abstract description 16
- 230000003902 lesion Effects 0.000 abstract description 11
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 238000002513 implantation Methods 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 210000000013 bile duct Anatomy 0.000 abstract description 2
- 210000003238 esophagus Anatomy 0.000 abstract description 2
- 210000003708 urethra Anatomy 0.000 abstract description 2
- 230000002792 vascular Effects 0.000 abstract description 2
- 231100000216 vascular lesion Toxicity 0.000 abstract description 2
- 210000000621 bronchi Anatomy 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000019553 vascular disease Diseases 0.000 description 2
- 206010002329 Aneurysm Diseases 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010070693 Vascular dissection Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Gastroenterology & Hepatology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to a kind of medical instruments for being input to human body, and in particular to a kind of for treating the support system of the lesions such as vascular lesion or bronchus, bile duct, urethra, esophagus.In the case of applying same pressure by dilating catheter, radial diameter of the sacculus and support under expansion state along one end of dilating catheter to the other end is different.The present invention only need to be implanted into the case where lesion vessels different-diameter the same pressure of a support system can reach mount proximal end and distal diameter it is not of uniform size to and vessel size match.Support system of the invention is easier in use, and release and implantation bracket enter the gradually smaller blood vessel of caliber, and vascular wall uniform force is made under expansion state, can be effectively reduced injury of blood vessel, rupture and the risk of occlusion.
Description
Technical field
The present invention relates to a kind of medical instruments for being input to human body, and in particular to one kind is for treating vascular lesion or branch gas
The support system of the lesions such as pipe, bile duct, urethra, esophagus.
Background technique
Cardiovascular disease is to threaten one of the principal disease of human health and life, and intravascular stent has been widely used the heart
In the treatment of vascular diseases, over the course for the treatment of, intravascular stent is put into the blood vessel of human body by implantation, is treated and prevented
The vascular diseases such as cardiovascular narrow, obstruction, aneurysm and interlayer.
The intravascular stent applied at present is largely to be placed on sacculus in advance, and balloon center has silk guide passage to pass through,
Bracket balloon system can reach target lesion position in blood vessel along seal wire in this way, discharge bracket after balloon expandable after allowing
The position of target lesion.The size of support system applied currently on the market, stent diameter and balloon diameter proximally arrives distal end all
It is consistent and pre-set.In use, the size that user arrives lesion vessels according to the observation is selected different straight
Then the support system of diameter arrives the stent-expansion to be implanted by sacculus with different pressure according to lesion vessels size
With the matched size of blood vessel.
However the diameter of blood vessel is not proximally to arrive distally unalterable, most of blood vessel, especially heart in human body
Blood vessel, all proximally (flow into end) gradually becomes smaller to distally (outflow end).Therefore, it can usually find that lesion vessels are close
End and distal end it is not of uniform size, difference is larger, especially encounter blood vessel it is forked when, in this case, it will usually need
After being implanted into a bracket, be expanded to after different size of sacculus and lesion vessels matching or two different size of branch
Then frame overlapping is matched with different size of rear expansion balloon expandable to lesion vessels.This operation not only increases expense, and
And increase operating procedure and difficulty, it is also easy to the complication for vascular dissection occur sometimes.And due to intravascular stent diameter and sacculus
The size of diameter proximally arrives distal end under expansion state and is all consistent, and bracket is in process of expansion, and caliber is smaller in blood vessel
One end bear main expansionary force, contact area is small and stress quickly increases and leads to injury of blood vessel, occlusion and the probability of rupture
Increase.
Therefore, it is necessary to manufacture the diameter difference intravascular stent system that a kind of and vessel size natural trend matches.
Summary of the invention
The purpose of the present invention is overcoming bracket and the unmatched technological deficiency of caliber change, a kind of and vessel size is provided certainly
So change the diameter difference intravascular stent system to match, adopts the following technical scheme that
A kind of support system, including radially distensible sacculus, the axial sacculus dilating catheter for being arranged in balloon center, and
It is wrapped in the expandable bracket of sacculus outer surface, which is characterized in that in the situation for applying same pressure by dilating catheter
Under, radial diameter of the sacculus and support under expansion state along one end of dilating catheter to the other end is different.It is excellent
The scheme of choosing, which is characterized in that in the case of applying same pressure by dilating catheter, the sacculus and support are expanding
Radial diameter under the state of opening along one end of dilating catheter to the other end is successively decreased.
As a further improvement of the above technical scheme: the support system, bracket is led along expansion in a contracted state
The radial diameter of one end of pipe to the other end is also possible to different, such as can be along one end of dilating catheter to the other end
Radial diameter gradually become smaller.Sacculus and support are under expansion state along the radial diameter of one end of dilating catheter to the other end
Difference can realize that implementation of the invention further includes the following two kinds in several ways: the first is sacculus by difference
The material of elasticity modulus is made, so that the expansion shape of sacculus different location at the same pressure is different, so as to cause bracket expansion
The expansion shape of different location is different under the state of opening；Second is made of material of the bracket by different surrender degree, so that bracket exists
The different state of different location radial diameter is showed under the action of the identical expansion pressure of sacculus.Above-mentioned improved technical solution
It is described in detail below:
A kind of support system, including radially distensible sacculus, the axial sacculus dilating catheter for being arranged in balloon center, and
It is wrapped in the expandable bracket of sacculus outer surface, which is characterized in that the sacculus is along one end of dilating catheter to another
Hold elasticity modulus different, in the case of applying same pressure by dilating catheter, so that bracket is under balloon expandable state
Radial diameter along one end of dilating catheter to the other end is different.Preferably, which is characterized in that the sacculus is along expansion
The one end for opening conduit is successively decreased to other end elasticity modulus, in the case of applying same pressure by dilating catheter, so that branch
Radial diameter of the frame under balloon expandable state along one end of dilating catheter to the other end is successively decreased.
A kind of support system, including radially distensible sacculus, the axial sacculus dilating catheter for being arranged in balloon center, and
It is wrapped in the expandable bracket of sacculus outer surface, which is characterized in that the telescope support is arrived along one end of dilating catheter
Other end surrender degree is different, in the case of applying same pressure by dilating catheter, so that in balloon expandable state lower edge
The radial diameter of one end of dilating catheter to other end bracket is different.Preferably, which is characterized in that the flexible branch
Frame successively decreases along one end of dilating catheter to other end surrender degree, in the case of applying same pressure by dilating catheter, so that
The radial diameter under balloon expandable state along one end of dilating catheter to other end bracket is obtained to successively decrease.
Bracket above-mentioned is all close to sacculus outer wall under sacculus unexpanded state.
Compared with prior art, the present invention only needs to be implanted into a support system in the case where lesion vessels different-diameter
Mount proximal end can be reached with same pressure and distal diameter is not of uniform size to match with vessel size.This hair
The bright support system is easier in use, and release and implantation bracket enter the gradually smaller blood vessel of caliber,
Make vascular wall uniform force under expansion state, can be effectively reduced injury of blood vessel, rupture and the risk of occlusion.
Detailed description of the invention
It is following that the present invention will be described in more detail based on the embodiments and with reference to the accompanying drawings.Following figure is in order to become apparent from
The various structures for seeing invention, change the ratio and size of various structures, and attached drawing is only schematic diagram.Wherein:
Fig. 1 is the support system under contraction state
Fig. 2 is the support system under expansion state
Fig. 3 is the variant of expansion state lower bracket system
Each label respectively indicates in figure: 1, support system；2, sacculus；3, metallic support；4, dilating catheter；5, seal wire is logical
Road, 11, proximal location；12, proximally and distally between position；13, remote location.
Specific embodiment
Under the present invention will be described in further details in conjunction with Figure of description and specific embodiment, but therefore do not limit
Protection scope of the present invention processed, figures 1 and 2 show that the embodiment of intravascular stent system of the present invention.
In the present embodiment, support system 1 includes radially distensible sacculus 2, the axial balloon expandable for being arranged in balloon center
Conduit 4, and be wrapped in the metallic support 3 of the expandable of sacculus outer surface, dilating catheter 4 wear in sacculus 2
The heart forms the silk guide passage 5 passed through for seal wire.
In the present embodiment, as shown in Figure 1, in the case where sacculus 2 and metallic support 3 are in contraction state, support system it is close
The radial diameter of end and distal end is identical.Sacculus 2 is made from distal end to proximal end of the different material of elasticity modulus, 2 material of sacculus
The elasticity modulus of material is gradually incremented by, and the surrender degree different location of metallic support is identical.As shown in Fig. 2, being led by expansion
Pipe 4 applies pressure to sacculus 2, under expansion state, due to the difference of elasticity modulus, and 2 different location of sacculus under uniform pressure
Strain it is different.In the present embodiment, should the becoming larger for metallic support 3 of proximal end and distal end should become smaller, show under expansion state
Metallic support 3 gradually becomes smaller along one end of dilating catheter to other end radial diameter.
It is of the invention it is another improve, the elasticity modulus of sacculus 2 along one end of dilating catheter 4 to other end elasticity modulus by
The material of same elastic modulus is made, and the surrender degree of metallic support 3 is gradually incremented by from distal end to proximal end.As shown in Fig. 2, passing through
Dilating catheter 4 applies pressure to sacculus 2, under expansion state, since the surrender degree on each position of metallic support 3 is different, makes
Under the expansion of the identical deformational stress of sacculus, the deformation of proximal end is greater than the deformation of distal end for it, shows metal branch under expansion state
Frame 3 gradually becomes smaller along one end of dilating catheter to other end radial diameter.
As further improvement of the invention, according to the spatial form of the blood vessel of releasing position, sacculus 2 is beaten by 3D
The mode of print is made, it is characterised in that the difference according to the irregular of the spatial form of releasing position blood vessel in sacculus 2
Position is made of the material of dual extension-compression modulus, makes it when applying pressure to sacculus 2 by dilating catheter 4, due to difference
The difference of position elasticity modulus size generates different size of strain, and expanded metal bracket good can be bonded and release
Put the blood vessel of position.
As a kind of variant of the invention, as shown in figure 3, the position 12 between proximally and distally indicates proximal end 11 and distal end
Any position between 13.Proximally the position 12 between proximally and distally is arrived in position 11, and the elasticity modulus of sacculus 2 is gradually
Reduce, proximally remote location 13 is arrived in the position 12 between distal end, and the elasticity modulus of sacculus 2 is consistent.In expansion shape
Under state, due to the difference of elasticity modulus, the strain of 2 different location of sacculus is different under uniform pressure.In the present embodiment, expand
The expansion pressure different by sacculus 2 of metallic support 3 under state and show proximally position 11 to 12 metallic support of position
3 radial diameter gradually becomes smaller；Proximally remote location 13 is arrived in the position 12 between distal end, since sacculus 2 is in this section of elasticity
Modulus is consistent, and expansionary force is also consistent, and under expansion state, the radial diameter of metallic support 3 is identical in this section.
Pressure is applied to sacculus 2 by dilating catheter 4, under expansion state, due to the difference of elasticity modulus, uniform pressure
The strain of lower 2 different location of sacculus is different.In the present embodiment, should the becoming larger for metallic support 3 of proximal end and distal end strain
It is small, it shows metallic support 3 under expansion state and is gradually become smaller along one end of dilating catheter to other end radial diameter.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (6)
1. a kind of support system, including radially distensible sacculus, the axial sacculus dilating catheter for being arranged in balloon center, and packet
Be wrapped in the expandable bracket of sacculus outer surface, which is characterized in that in the case of applying same pressure, the sacculus and
Radial diameter of the bracket under expansion state from one end to the other end is not always identical.
2. support system according to claim 1, which is characterized in that in the case of applying same pressure, the ball
The radial diameter of capsule and bracket under expansion state from one end to the other end is successively decreased.
3. a kind of support system, including radially distensible sacculus, the axial sacculus dilating catheter for being arranged in balloon center, and packet
It is wrapped in the expandable bracket of sacculus outer surface, which is characterized in that the sacculus is from one end to other end elasticity modulus
Difference, in the case of applying same pressure by dilating catheter so that bracket under balloon expandable state from one end to
The radial diameter of the other end is different.
4. support system according to claim 3, which is characterized in that the sacculus is elastic from its one end to the other end
Modulus is successively decreased, apply same pressure in the case of, so that bracket is under balloon expandable state from one end to the other end
Radial diameter is successively decreased.
5. a kind of support system, including radially distensible sacculus, the axial sacculus dilating catheter for being arranged in balloon center, and packet
It is wrapped in the expandable bracket of sacculus outer surface, which is characterized in that the telescope support is surrendered from one end to the other end
Degree is different, in the case of applying same pressure, so that in balloon expandable state lower bracket from one end to other end bracket
Radial diameter be different.
6. intravascular stent system according to claim 5, which is characterized in that the telescope support is along from one end to another
One end surrender degree successively decreases, in the case of applying same pressure, so that in balloon expandable state lower bracket from one end to another
The radial diameter of one end bracket is successively decreased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810899154.7A CN109330742A (en) | 2018-08-08 | 2018-08-08 | A kind of support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810899154.7A CN109330742A (en) | 2018-08-08 | 2018-08-08 | A kind of support system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109330742A true CN109330742A (en) | 2019-02-15 |
Family
ID=65291796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810899154.7A Pending CN109330742A (en) | 2018-08-08 | 2018-08-08 | A kind of support system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109330742A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080208307A1 (en) * | 2003-11-03 | 2008-08-28 | B-Balloon Ltd. | Treatment of Vascular Bifurcations |
| CN202313820U (en) * | 2011-04-27 | 2012-07-11 | 郭伟 | Balloon for extending peripheral vessel stent |
| CN202478393U (en) * | 2012-03-09 | 2012-10-10 | 徐庆国 | Coronary artery dilation balloon |
| CN202569167U (en) * | 2012-03-09 | 2012-12-05 | 徐庆国 | Coronary balloon expandable stent |
| CN204050643U (en) * | 2014-07-08 | 2014-12-31 | 竺妙飞 | A kind of coronary dilation device |
| CN209405016U (en) * | 2018-08-08 | 2019-09-20 | 唐利龙 | A kind of support system |
-
2018
- 2018-08-08 CN CN201810899154.7A patent/CN109330742A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080208307A1 (en) * | 2003-11-03 | 2008-08-28 | B-Balloon Ltd. | Treatment of Vascular Bifurcations |
| CN202313820U (en) * | 2011-04-27 | 2012-07-11 | 郭伟 | Balloon for extending peripheral vessel stent |
| CN202478393U (en) * | 2012-03-09 | 2012-10-10 | 徐庆国 | Coronary artery dilation balloon |
| CN202569167U (en) * | 2012-03-09 | 2012-12-05 | 徐庆国 | Coronary balloon expandable stent |
| CN204050643U (en) * | 2014-07-08 | 2014-12-31 | 竺妙飞 | A kind of coronary dilation device |
| CN209405016U (en) * | 2018-08-08 | 2019-09-20 | 唐利龙 | A kind of support system |
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