CN109171833A - A kind of closure of blood flow freeze mode double side walls sacculus, foley's tube - Google Patents
A kind of closure of blood flow freeze mode double side walls sacculus, foley's tube Download PDFInfo
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- CN109171833A CN109171833A CN201811107429.5A CN201811107429A CN109171833A CN 109171833 A CN109171833 A CN 109171833A CN 201811107429 A CN201811107429 A CN 201811107429A CN 109171833 A CN109171833 A CN 109171833A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00592—Elastic or resilient implements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/0061—Implements located only on one side of the opening
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00623—Introducing or retrieving devices therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00646—Type of implements
- A61B2017/00659—Type of implements located only on one side of the opening
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Abstract
The present invention provides a kind of blood flow freeze mode double side walls to block sacculus, foley's tube.A kind of blood flow freeze mode double side walls closure sacculus, including outer sacculus and interior sacculus, the interior sacculus are surrounded by filling liquid chamber, and the filling liquid chamber is grid-shaped；Exocoel is surrounded between the outer sacculus and the interior sacculus；The distal end of the outer sacculus is connect with the distal end of the interior sacculus to close the port of the exocoel；When the filling liquid chamber is filling liquid state, the interior sacculus surrounds inner cavity.Sacculus and foley's tube of the invention can carry out the closure of blood vessel side wall simultaneously and blood flow is kept, and also have many advantages, such as to can be used for irregular lumen, be easily implanted into, be removable.
Description
Technical field
The present invention relates to area of medical devices, block sacculus, sacculus more particularly, to a kind of blood flow freeze mode double side walls
Conduit.
Background technique
In the interventional therapy means of vascular diseases, the reparation of blood vessel and the expansion of lumen are two for must be taken into consideration
Target, related equipment mainly has sacculus, overlay film frame, Shunt pipeline etc. at present.These conventional fixtures have certain
Limitation cannot be considered in terms of the reparation of blood vessel and the normal circulation of blood, or not be suitable for the treatment of certain organs.
For example, sacculus is one of the tool that current medicine intervention field is most widely used, sacculus can in unexpanded mode
To be placed in inside lumen, after injecting liquid, balloon expandable plays the dilating effect to lumen, while can play blocking tube
Chamber effect, this is because body cavities (blood vessel or other pipelines) are closed after balloon expandable.In some cases,
It blocks lumen that may bring serious consequence, if liver week inferior caval vein blocks, causes returned blood volume sharply to reduce, in Liver Trauma
Or haemorrhagic shock patient can cause patient dead；Perhaps arterial injury lumen closure have cause distal limb or
Organ ischemia, downright bad possibility.
Overlay film frame can carry out intracavitary reparation to damage blood vessel, and still, it has as following drawbacks: 1. the bracket is expensive；②
Digital outline machine (DSA) is needed, operation could be implemented, and the latter is large medical equipment, not all medical institutions can open
Exhibition；3., since time is long, for emergency treatment severe blood loss patient, reducing treatment efficiency even if being able to use the equipment；④
It needs Invasive Technology Department doctor to participate in, increases participant, reduce treatment efficiency；5. bracket specification needed for different damage locations is different,
Basic hospital can not be carried out；6. most importantly, such bracket is once put into vivo, need to carry throughout one's life,
Such bracket itself can bring many complication.
Shunt turn of tidal stream pipeline: this is a kind of method being reported in 1960-1970, original using hollow hard tube turn of tidal stream
Lumen of vessels blood flow prevents the intravascular blood flow of Local Damaged excessive using sacculus or ligating methods.This method is confined to,
The pipe used is hard tube, and immutable caliber causes pipeline merging difficult, and in the later period, Shunt shunt tube, which has had already appeared, to be changed
Into effect is bad, does not continue to use down, in my previous work, it is found that the internal diameter of part pipeline is small, is unable to satisfy blood
The reason of hydromechanics requirement, this is its failure.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of blood flow freeze mode double side walls and blocks sacculus, which can be same
Shi Jinhang blood vessel side wall blocks and blood flow is kept, and also has many advantages, such as to can be used for irregular lumen, is easily implanted into, can be removed.
The second object of the present invention is a kind of foley's tube, and the foley's tube is applied widely, easy implantation, can be removed
The advantages that.
In order to achieve the goal above, the present invention provides following technical schemes:
A kind of blood flow freeze mode double side walls closure sacculus, including outer sacculus and interior sacculus, the interior sacculus is by filling liquid chamber
It surrounds, the filling liquid chamber is grid-shaped；
Exocoel is surrounded between the outer sacculus and the interior sacculus；The distal end of the outer sacculus is remote with the interior sacculus
End is connected to close the port of the exocoel；
When the filling liquid chamber filling liquid state, the interior sacculus surrounds inner cavity.
The above blood flow freeze mode double side walls of the invention block sacculus and have the characteristics that.
(1) side wall closure is carried out simultaneously and keeps normal blood flow:
The difference of the present invention and traditional double-layered balloon is to change the ball wall construction of interior sacculus, i.e., using filling liquid chamber
As the ball wall of interior sacculus, the pressure after can use filling liquid chamber filling liquid in this way stablizes the shape of interior sacculus, guarantees that there is foot in inner cavity
Enough big spaces meet haemodynamics requirement, keep blood flow unobstructed；The ball wall of outer sacculus can block blood vessel side wall simultaneously, keep away
Exempt from side leakage.
(2) it is used in the lumen of arbitrary shape:
Since sacculus of the invention uses traditional hose material, there is certain compliance, caliber can change, together
When interior sacculus " liquid-filled " ball wall there is certain rigidity after filling liquid, therefore, it is suitable that double side walls of the invention block sacculus
For irregular lumen reparation, the lumen even distorted.
(3) it is easy implantation:
In the state of exocoel and filling liquid chamber not filling liquid, the caliber of sacculus is minimum, convenient for implantation, and to implantation
Mode with no restrictions, can cooperate in the equipment intervening body such as traditional guiding tube, seal wire, or cooperate other equipment intervening body
It is interior.
(4) it can be removed:
It, can there is no need to carry throughout one's life since double-layered balloon auxiliary is completed thoroughly repair the blood vessel of damage
To be removed after the completion of reparation.
The special designing of the sacculus enables it have other usages, such as the processing of Stenosis.
In actual use, blood flow freeze mode double side walls are blocked to the narrow part of sacculus implantable intravascular with equipment such as seal wires
Position, the ball wall internal-filling liquid of inside sacculus, until interior balloon expandable is completed, internal environment meets haemodynamics requirement；This
When outer sacculus also expanded, and the inner wall for being tightly attached to lesion vessels (if not being close to, intracavitary injection liquid can make outside outward
Sacculus is extremely close to vascular wall).After sacculus supports for a long time, narrow blood vessel is expanded, and completes treatment, is taken out
Sacculus.This sacculus has advance for current dilating sacculus.
If narrow vascular wall also needs drug therapy, the outer sacculus for having micropore on ball wall can be selected.Actual use
When, blood flow freeze mode double side walls are blocked to the narrow positions of sacculus implantable intravascular, the ball wall of inside sacculus with equipment such as seal wires
Filling liquid, until interior balloon expandable is completed, internal environment meets haemodynamics requirement；Outer sacculus is also expanded simultaneously at this time
, and the inner wall for being tightly attached to lesion vessels (if not being close to, can make outer sacculus to abutting blood by intracavitary injection liquid outward
Tube wall), then gas-liquid intracavitary outside pumpback, injection of medicine, drug pass through the micropore permeation on ball wall to vascular wall thereto.
After sacculus supports for a long time and drug is treated for a long time, narrow blood vessel is expanded, and completes treatment, is taken out
Sacculus.This sacculus has advance for current medicine-coated balloon.
It can be seen that the central characteristics of double-layered balloon of the invention are: being not only able to maintain blood flow, but also blood vessel side wall can be blocked.
In the present invention, the effect of filling liquid chamber is setting, even if interior sacculus forms sufficiently large interior of stable structure and space
Chamber.Therefore, the present invention (is advisable) to the form for the liquid being filled with no restrictions to inject liquid.Meanwhile filling liquid chamber is limited as net
Trellis is to improve the stability of interior balloon structure in order to improve setting dynamics, it is made to have enough tension, keep blood stream
It is dynamic, secondary blocking caused by avoiding interior sacculus from collapsing.Therefore, the present invention does not do the concrete shape and distribution of grid
Limitation, but generally select rule and be evenly distributed latticed, the pressure to guarantee all positions of lumen is consistent.
The structure of the above double-layered balloon can also be further improved, specific as follows.
Preferably, the interior sacculus is semi-compliant or non-compliance material.
Preferably, the outer sacculus is compliance material.
Preferably, described latticed for matts or day word lattice or other shapes, after keeping interior balloon expandable
Form.
Preferably, the filling liquid chamber is filled with multiple partitions, and the multiple partition is joined together to form latticed.
Preferably, the filling liquid chamber is composed by multiple small cavitys are grid-shaped, and the multiple small cavity is mutual
Connection.
Preferably, micropore is installed on the ball wall of the outer sacculus.
Preferably, the connection type of the distal end of the outer sacculus and the distal end of the interior sacculus is welding, bonding or seam
It closes.
The structure that the foley's tube of double-layered balloon composition is made is as follows:
Sacculus is blocked including inner tube, outer tube and the blood flow freeze mode double side walls；
Said inner tube is connected to the filling liquid chamber, and the outer tube is connected to the exocoel；
Said inner tube and the outer tube share injected system or are separately connected an injected system.
Wherein, inner tube conveys liquid for (i.e. filling liquid chamber) in inside sacculus ball wall；Outer tube is used for outside intracavitary conveying liquid
Body.The above transmission process can be completed by shared injected system, or the injected system respectively connected is completed.
The present invention to the structure of injected system with no restriction.
The structure of the foley's tube can also be further improved, specific as follows.
It preferably, further include seal wire, the seal wire is located at the inner cavity.
To sum up, compared with prior art, invention achieves following technical effects:
(1) side wall closure can be carried out simultaneously and keeps normal blood flow；
(2) the lumen reparation of suitable arbitrary shape；
(3) it is easy implantation；
(4) it without carrying throughout one's life, can be removed.
Detailed description of the invention
It, below will be to tool in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Body embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing be some embodiments of the present invention, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the stereoscopic schematic diagram for the double-layered balloon that the embodiment of the present invention 1 provides；
Fig. 2 is the structural schematic diagram of interior sacculus in Fig. 1；
Fig. 3 is the sectional view in Fig. 1；
Appended drawing reference:
The outer sacculus of 1-, sacculus in 2-, 3- exocoel, the inner cavity 4-, 201- small column cavity.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with the drawings and specific embodiments, but
Be it will be understood to those of skill in the art that it is following described embodiments are some of the embodiments of the present invention, rather than it is whole
Embodiment is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.Based on the embodiments of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.The person that is not specified actual conditions in embodiment, carries out according to conventional conditions or manufacturer's recommended conditions.It is used
Production firm person is not specified in reagent or instrument, is the conventional products that can be obtained by commercially available purchase.
The core of following embodiment of the present invention is that the ball wall of sacculus uses specific structure, specific as follows.
A kind of blood flow freeze mode double side walls closure sacculus, including outer sacculus and interior sacculus, the interior sacculus is by filling liquid chamber
It surrounds, the filling liquid chamber is grid-shaped；
Exocoel is surrounded between the outer sacculus and the interior sacculus；The distal end of the outer sacculus is remote with the interior sacculus
End is connected to close the port of the exocoel；
When the filling liquid chamber is filling liquid state, the interior sacculus surrounds inner cavity.
The above structure determines that the major functions and features of the double-layered balloon are: being not only able to maintain blood flow, but also can block vessel side
Wall；Certain double-layered balloon also has other advantages, specific as follows.
(1) side wall closure is carried out simultaneously and keeps normal blood flow:
The difference of the present invention and traditional double-layered balloon is to change the ball wall construction of interior sacculus, i.e., using filling liquid chamber
As the ball wall of interior sacculus, the pressure after can use filling liquid chamber filling liquid in this way stablizes the shape of interior sacculus, guarantees that there is foot in inner cavity
Enough big spaces meet haemodynamics requirement, keep blood flow unobstructed；The ball wall of outer sacculus can block blood vessel side wall simultaneously, keep away
Exempt from side leakage.
(2) lumen of suitable arbitrary shape:
Since sacculus of the invention uses traditional hose material, there is certain compliance, caliber can change, together
When interior sacculus " liquid-filled " ball wall there is certain rigidity after filling liquid, therefore, it is suitable that double side walls of the invention block sacculus
For irregular lumen reparation, the lumen even distorted.
(3) it is easy implantation:
In the state of exocoel and filling liquid chamber not filling liquid, the caliber of sacculus is minimum, convenient for implantation, and to implantation
Mode with no restrictions, can cooperate in the equipment intervening body such as traditional guiding tube, seal wire, or cooperate other equipment intervening body
It is interior.
(4) it can be removed:
Since the double-layered balloon can thoroughly repair the blood vessel of damage, there is no need to carry throughout one's life, can repair
It removes after the completion.
The special designing of the sacculus enables it have other usages.Such as the processing of Stenosis.
In actual use, blood flow freeze mode double side walls are blocked to the narrow part of sacculus implantable intravascular with equipment such as seal wires
Position, the ball wall internal-filling liquid of inside sacculus, until interior balloon expandable is completed, internal environment meets haemodynamics requirement；This
When outer sacculus also expanded simultaneously, and be tightly attached to lesion vessels inner wall (if not being close to, can intracavitary injection liquid outward
Make outer sacculus to abutting vascular wall).After sacculus supports for a long time, narrow blood vessel is expanded, and completes treatment,
Take out sacculus.
If narrow vascular wall also needs drug therapy, the outer sacculus for having micropore on ball wall can be selected.Actual use
When, blood flow freeze mode double side walls are blocked to the narrow positions of sacculus implantable intravascular, the ball wall of inside sacculus with equipment such as seal wires
Internal-filling liquid, until interior balloon expandable is completed, internal environment meets haemodynamics requirement；Outer sacculus is also by simultaneously at this time
Expansion, and the inner wall for being tightly attached to lesion vessels (if not being close to, can make outer sacculus to abutting by intracavitary injection liquid outward
Vascular wall), then gas-liquid intracavitary outside pumpback, injection of medicine, drug pass through the micropore permeation on ball wall to blood vessel thereto
Wall.After sacculus supports for a long time and drug is treated for a long time, narrow blood vessel is expanded, damaged tube wall
It is repaired, completes treatment, take out sacculus.
For the different parts of the double-layered balloon, structure can also be advanced optimized, specific as follows.
(1) it is directed to the structure of filling liquid chamber:
Since filling liquid chamber serves as the ball wall of interior sacculus, effect is setting, make interior sacculus formed stable structure and
The sufficiently large inner cavity in space.Therefore, theoretically, the present invention to the form of the liquid being filled with no restrictions.
Meanwhile filling liquid chamber is limited to be latticed, it is to improve the stability of interior balloon structure to improve setting dynamics,
So that it is had enough tension, keeps blood flow, secondary blocking caused by avoiding interior sacculus from collapsing.Latticed generation type
It is various, such as following two mode.
The inside of mode one, the filling liquid chamber is filled with multiple partitions, and the multiple partition is joined together to form grid
Shape.The features of shape of this chamber is: when being in filling liquid state, the outer surface of chamber is in smooth state, internal by multiple partitions point
Multiple regions are cut into, partition plays a supportive role, and increases the stability of filling liquid chamber.
Mode two, the filling liquid chamber is composed by multiple small cavitys are grid-shaped, and the multiple small cavity is mutual
Connection.The features of shape of this chamber is: when being in filling liquid state, the outer surface of chamber is in rough state, i.e., interior sacculus
Ball wall surrounded by multiple small bulges.
Obviously, the geometry of mode two has more toughness, can bear bigger pressure, and more conducively blood flow is kept.
As for latticed shape, then be it is various, generally use the shape of rule, such as matts or day word lattice.
(2) it is directed to the material of sacculus:
The interior sacculus is preferably semi-compliant or non-compliance material, and the outer sacculus is preferably compliance material.
Interior sacculus is semi-compliant or non-compliance, and elasticity is small, its is small in size in a contracted state, after filling liquid chamber injects liquid,
Under pressure, interior sacculus is fully deployed, and forms a cricoid latticed sacculus.Balloon interior is hollow, sacculus net
Gap is film covering between lattice, and liquid can not pass through, and does not allow liquid or other outside leakages in the sacculus.This is interior
The main purpose of sacculus is to produce hollow channel of blood flow.Outer sacculus is compliant balloon, and elasticity is big, minimum pressure
It can also be enabled to expand outward, because interior sacculus is semi-compliant or non-compliance sacculus, tension stress ability is strong, and deformation is small.
When outer sacculus expands under minimum pressure effect, internal sacculus internal diameter is expanded outwardly almost without influence, outer sacculus.This is outer
The main purpose of balloon design is the gap blocked between above-mentioned interior sacculus and outer sacculus, realizes that side wall blocks.
(3) it is directed to the ball wall of outer sacculus:
If desired blood vessel is repaired with composite medicine, then micropore can be set on the ball wall of outer sacculus, be used for osmotic drug.
(4) it is directed to the connection type of outer sacculus and interior sacculus:
The present invention it is without limitation, such as the outer sacculus distal end and the distal end of the interior sacculus connection type
For welding, bonding or suture etc..
(5) intracorporal mode is intervened for double-layered balloon:
The present invention to intervening mode with no restrictions, such as can using the current equipment such as existing guiding catheter and seal wire,
Other equipment leaved for development can also be used.
When using the intervention of existing equipment, i.e. structure similar to traditional conduit, that is, includes that inner tube, outer tube and blood flow are protected
It holds formula double side walls and blocks sacculus；Said inner tube is connected to the filling liquid chamber, and the outer tube is connected to the exocoel；In described
Pipe and the outer tube share injected system or are separately connected an injected system；Seal wire is also typically included, the seal wire is located at institute
State inner cavity.
Embodiment 1
Double-layered balloon as shown in figs. 1 and 3, including outer sacculus and interior sacculus.
The interior sacculus 2 is surrounded by filling liquid chamber, and the filling liquid chamber is by the grid-shaped row of multiple small column cavitys 201
Column are composed, and the multiple small cavity is interconnected.When the filling liquid chamber filling liquid state, the interior sacculus 2 surrounds interior
Chamber 4, as shown in Figure 2.
Exocoel 3 is surrounded between the outer sacculus 1 and the interior sacculus 2；The distal end of the outer sacculus 1 and the interior sacculus 2
Distal end connection to close the port of the exocoel 3, the proximal end of two sacculus connects injected system or guidance group when in use
Part.
Interior sacculus 2 is semi-compliant or non-compliance material, and outer sacculus 1 is compliance material.
The small column cavity 201 of the embodiment can be replaced other shapes such as prism, centrum etc..
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；
Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its
It is still possible to modify the technical solutions described in the foregoing embodiments, or special to some or all of technologies
Sign is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
The range of technical solution.
Claims (10)
1. a kind of blood flow freeze mode double side walls block sacculus, which is characterized in that including outer sacculus and interior sacculus, the interior sacculus
It is surrounded by filling liquid chamber, the filling liquid chamber is grid-shaped；
Exocoel is surrounded between the outer sacculus and the interior sacculus；The distal end of the outer sacculus is connect with the distal end of the interior sacculus
To close the port of the exocoel；
When the filling liquid chamber filling liquid state, the interior sacculus surrounds inner cavity.
2. blood flow freeze mode double side walls according to claim 1 block sacculus, which is characterized in that the interior sacculus is half
Compliance or non-compliance material.
3. blood flow freeze mode double side walls according to claim 1 or 2 block sacculus, which is characterized in that the outer sacculus
For compliance material.
4. blood flow freeze mode double side walls according to claim 1 block sacculus, which is characterized in that described latticed for field
Word lattice or day word lattice.
5. blood flow freeze mode double side walls according to claim 1 block sacculus, which is characterized in that the filling liquid chamber filling
There are multiple partitions, the multiple partition is joined together to form latticed.
6. blood flow freeze mode double side walls according to claim 1 block sacculus, which is characterized in that the filling liquid chamber is by more
A small cavity is grid-shaped to be composed, and the multiple small cavity is interconnected.
7. blood flow freeze mode double side walls according to claim 1 block sacculus, which is characterized in that the ball of the outer sacculus
Micropore is installed on wall.
8. blood flow freeze mode double side walls according to claim 1 block sacculus, which is characterized in that the outer sacculus it is remote
The connection type of end and the distal end of the interior sacculus is welding, bonding or suture.
9. a kind of foley's tube, which is characterized in that kept including inner tube, outer tube and the described in any item blood flows of claim 1-8
Formula double side walls block sacculus；
Said inner tube is connected to the filling liquid chamber, and the outer tube is connected to the exocoel；
Said inner tube and the outer tube share injected system or are separately connected an injected system.
10. foley's tube according to claim 9, which is characterized in that further include seal wire, the seal wire is located in described
Chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811107429.5A CN109171833A (en) | 2018-09-21 | 2018-09-21 | A kind of closure of blood flow freeze mode double side walls sacculus, foley's tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811107429.5A CN109171833A (en) | 2018-09-21 | 2018-09-21 | A kind of closure of blood flow freeze mode double side walls sacculus, foley's tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115137949A (en) * | 2022-06-27 | 2022-10-04 | 上海心玮医疗科技股份有限公司 | Metal rod body plugging balloon catheter |
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