CN107669382A - Foley's tube conveying device is used in a kind of entocranial artery shaping - Google Patents
Foley's tube conveying device is used in a kind of entocranial artery shaping Download PDFInfo
- Publication number
- CN107669382A CN107669382A CN201711091411.6A CN201711091411A CN107669382A CN 107669382 A CN107669382 A CN 107669382A CN 201711091411 A CN201711091411 A CN 201711091411A CN 107669382 A CN107669382 A CN 107669382A
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- Prior art keywords
- guiding tube
- tube
- foley
- delivery conduit
- conveying device
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- Pending
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- 210000001367 artery Anatomy 0.000 title claims abstract description 20
- 238000007493 shaping process Methods 0.000 title claims abstract description 18
- 230000000916 dilatatory effect Effects 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000003902 lesion Effects 0.000 abstract description 14
- 238000011282 treatment Methods 0.000 description 5
- 206010033799 Paralysis Diseases 0.000 description 3
- 238000007917 intracranial administration Methods 0.000 description 3
- 208000021090 palsy Diseases 0.000 description 3
- 238000002399 angioplasty Methods 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- 206010008092 Cerebral artery thrombosis Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 229960001138 acetylsalicylic acid Drugs 0.000 description 1
- 230000002785 anti-thrombosis Effects 0.000 description 1
- 239000003146 anticoagulant agent Substances 0.000 description 1
- 210000001841 basilar artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 201000005851 intracranial arteriosclerosis Diseases 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000216 vascular lesion Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
-
- 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
- A61F2002/9583—Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve
- A61F2002/9586—Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve the means being inside the balloon
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to a kind of entocranial artery shaping foley's tube conveying device, including delivery conduit, delivery conduit has the delivery conduit inner chamber for being used for passing through for corresponding seal wire and support, the distal end of delivery conduit is provided with dilating sacculus, the one end of dilating sacculus away from delivery conduit is provided with the guiding tube that length is 8 ~ 20mm, guiding tube is plastic guiding tube or the preformed guiding tube with elbow section, and guiding tube has the guiding tube cavity connected with delivery conduit inner chamber passed through for the seal wire and support.Accurately sacculus and support can be guided to the entocranial artery shaping foley's tube conveying device of lesion locations the invention provides a kind of.
Description
Technical field
The present invention relates to the entocranial artery shaping foley's tube conveying device in a kind of medical instruments field.
Background technology
Cerebral arterial thrombosis is one of the main reason for lethal of disabling, and wherein 10%-15% is Intracranial Atherosclerosis
Narrow to cause, asian population may be up to 33%-50%.
WASID experiment displays：Even if the strict anti-bolt prevention of oral aspirin, annual Recurrent stroke risk are still up to
18%；SAMPPRIS experiment displays：Strengthening medical treatment, palsy sends out palsy rate as 5.8% again first in January, is sent out again in 32.8 months
Palsy rate is 15%；Especially for those antithrombotic treatments symptoms repeatedly or Low perfusion morbidity patient, selective stent forming
It is necessary that blood flow, which is rebuild,.Just there is scholar to attempt percutaneous transluminal angioplasty (PTA) treatment basilar artery narrowing, mesh early in 1980
No matter preceding clinic uses Gateway sacculus-Wingspan from swollen mounting system or Apollo balloon expandable stent systems, technology
Success rate is up to more than 97%, and intracavitary blood flow rebuilds feasibility and obtains the checking of large case and RCT researchs.
But the security of operation annoyings the popularization and application of Intracranial Arteries Stenoses stent forming treatment, SAMPPRIS examinations always
Test middle peri-operation period and be up to 14.7% Primary endpoint events incidence and allow people to hang back.Existing stent forming system operatio is numerous
It is trivial, the undoubtedly immediate cause of high concurrent disease rate, especially with intracranialed hemorrhage caused by seal wire unusual fluctuation it is closely related.With relatively simple
Ball expands exemplified by mounting system, and operation includes super select and remain of seal wire and puts, expands after sacculus pre-expansion, stent forming and sacculus, and apparatus is handed over repeatedly
Swap-in goes out system four times, main flow it is increasingly complex from swollen stent forming system.
On the other hand, Chinese patent CN204951911U is disclosed " a kind of foley's tube ", the foley's tube includes catheter block, with
The pipe shaft of catheter block connection and the sacculus of pipe shaft distal surface is arranged at, pipe shaft includes pipe shaft body and to be arranged on pipe shaft body remote
From the spike tube section of base one end, external diameter of the spike tube section away from pipe shaft body one end is less than the external diameter of pipe shaft body, pipe shaft body tool
There is the inner chamber that can pass through for seal wire and support, the internal diameter of spike tube section is more than the external diameter of seal wire, set on the internal chamber wall of spike tube section
There is the breach that spike tube section can be made radially outward to split.In use, sacculus is delivered to the lesion locations of blood vessel, sacculus by seal wire
Lesion locations are expanded, support is then delivered to by lesion locations by the inner chamber of pipe shaft body, apparatus is not required to and exchanges repeatedly, from one
Determine to add the security of operation in degree.But existing this foley's tube still suffers from problems with：Positioned at balloon distal
Pipe shaft it is shorter, it is impossible to plastic deformation, it is impossible to play guiding function, can not be accurately by ball when running into branch vessel lesion
Capsule is guided to lesion locations, support accurately can not be sent into lesion locations, be increased operating difficulty；Spike tube section can increase support
Submitting resistance, can also increase operating difficulty.
The content of the invention
It is an object of the invention to provide it is a kind of can accurately by sacculus and support guide to the entocranial artery of lesion locations into
Shape foley's tube conveying device.
In order to solve the above technical problems, technical scheme is as follows：
A kind of entocranial artery shaping foley's tube conveying device, including delivery conduit, delivery conduit, which has, to be used for for accordingly leading
The delivery conduit inner chamber that silk and support pass through, the distal end of delivery conduit are provided with dilating sacculus, and dilating sacculus is away from delivery conduit
One end be provided with length be 8 ~ 20mm guiding tube, guiding tube be plastic guiding tube or with elbow section preformed guiding tube,
Guiding tube has the guiding tube cavity connected with delivery conduit inner chamber passed through for the seal wire and support.
The length of the plastic guiding tube is 13 ~ 17mm.
The length of the plastic guiding tube is 15mm.
Hydrophilic coating is scribbled in delivery conduit inner chamber cavity wall and the inner chamber cavity wall of guiding tube.
One end end of the plastic guiding tube away from sacculus is provided with guiding tube developing mark.
The opening position adjacent with sacculus is provided with sacculus developing mark on delivery conduit, guiding tube.
The guiding tube is the preformed guiding tube with elbow section, and the bent angle of elbow section is 1 ~ 45 degree.
The bent angle of the elbow section is 45 degree.
The inner chamber and periphery of the guiding tube are cylindrical surface structure.
The external diameter of the guiding tube is 0.67--0.75mm, and internal diameter is 0.50 ~ 0.55mm.
Beneficial effects of the present invention are：Foley's tube conveying device in the present invention when in use, by seal wire by sacculus
Catheter delivery device is delivered to intravascular, is arranged at the guiding tube of distal end for the plastic guiding tube with certain length or with curved
The preformed guiding tube of head section, can be directly moulding to guiding tube for corresponding to plastic guiding tube, for preformed guiding tube,
Elbow section then can be directly utilized, guiding sacculus enters in the branch vessel of lesion, carries out pre-expansion, after pre-expansion terminates, support
Lesion locations directly can be delivered to through delivery conduit inner chamber and guiding tube cavity, avoid cumbersome swap operation, greatly letter
Operation technique is changed, has helped to reduce complication probability.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention 1；
Fig. 2 is A-A in Fig. 1 to sectional view；
Fig. 3 is the B-B direction sectional view in Fig. 1；
Fig. 4 is the structural representation of embodiments of the invention 2.
Embodiment
A kind of entocranial artery shaping uses the embodiment 1 of foley's tube conveying device as shown in Figure 1 and 2：Conduit including Y shape
Seat 1, delivery conduit 2 is provided with catheter block, and delivery conduit has in the delivery conduit for being used for passing through for corresponding seal wire and support
Chamber 10, the side of delivery conduit inner chamber 10 are provided with inclined chamber 11, and the positive arm 8 of catheter block communicates with delivery conduit inner chamber 10, catheter block
Side arm 7 communicated with inclined chamber 11.A diameter of 0.9mm of delivery conduit exocoel in the present embodiment, can be used for seal wire, support it is defeated
Send.The distal end of delivery conduit is provided with dilating sacculus 3, and dilating sacculus is semi-compliant sacculus, and it is completely full rear a diameter of
4mm, length 10mm, the inclined chamber 11 of delivery conduit is used to filling/discharge sacculus.The one end of dilating sacculus away from delivery conduit is set
The guiding tube 4 that length is 15mm is equipped with, guiding tube 4 is straight plastic guiding tube, and guiding tube has to be passed through for seal wire and support
The guiding tube cavity 9 connected with delivery conduit inner chamber, scribble parent in the inner chamber cavity wall of delivery conduit inner chamber cavity wall and guiding tube
Water coating, so contribute to reduce the frictional force between support so that support is easier to be pushed success, the external diameter of guiding tube
Less than the external diameter of delivery conduit, the external diameter of guiding tube is 0.7mm in the present embodiment, and the internal diameter of delivery conduit is 0.53mm.Entirely
The length of foley's tube conveying device is 150cm.One end end set of the guiding tube away from dilating sacculus has roentgenopaque draw
Conduit developing mark 5, delivery conduit, the guiding tube opening position adjacent with dilating sacculus are provided with sacculus developing mark 6.
The operating process of this foley's tube conveying device is：1st, guiding tube is carried out it is moulding in advance, utilize micro-wire will this
Foley's tube conveying device is delivered to intravascular, and guiding tube can guide sacculus to enter in the branch vessel for lesion occur, accurate
True is positioned at dilating sacculus at vascular lesion；2nd, the side arm of catheter block connects compression pump, is filled by inclined chamber into dilating sacculus
The contrast agent of dilution is filled out, slowly full dilating sacculus carries out predilation to lesion；3rd, seal wire is withdrawn from outside, and support is led along conveying
Pipe and guiding tube accurately push to lesion locations, are accurately positioned release；4th, if necessary by foley's tube conveying device along support
Expand after push seal wire follow-up, remove device outside after radiography satisfaction and terminate to perform the operation.The present invention make full use of the design of commercially available intracranial stent and
The tremendous development obtained in recent years is processed, coordinates microtubular, dilating sacculus, stent delivery system and rear expansion sacculus etc. multinomial the past
Apparatus and operation, which are cleverly merged, in a system, realizes 200cm short-length guidewires, the intracranial stent forming treatment without exchange, pole
Big simplifies operation, helps to reduce complication.
Dilating sacculus and support accurately can be delivered to by lesion locations by guiding tube in the present invention, while avoided repeatedly
Operation, reduce complication probability.In other embodiments of the invention：The length of guiding tube can also be 13mm, 17mm or 8
Other length values between ~ 20mm；Diameter after dilating sacculus is full can also be other values between 2 ~ 5mm；Delivery conduit
External diameter can also be other values between 0.84 ~ 0.95mm；The external diameter of guiding tube can also be between 0.67--0.75mm
Other values, other values that the internal diameter of guiding tube can also be between 0.50 ~ 0.55mm.
A kind of entocranial artery shaping is as shown in Figure 4 with the embodiment 2 of foley's tube conveying device：Embodiment 2 and embodiment 1
The difference is that guiding tube 4 is the preformed guiding tube with elbow section 12, in the present embodiment, the angle of elbow section is 45 degree.At this
In the other embodiments of invention, the angle of elbow section can also be other values between 1 ~ 45 degree or 60 degree, 70 degree etc. it is other
Value.
Claims (10)
1. a kind of entocranial artery shaping foley's tube conveying device, including delivery conduit, delivery conduit, which has, to be used for for corresponding
The delivery conduit inner chamber that seal wire and support pass through, the distal end of delivery conduit are provided with dilating sacculus, it is characterised in that：Dilating sacculus
One end away from delivery conduit is provided with the guiding tube that length is 8 ~ 20mm, and guiding tube is plastic guiding tube or has elbow section
Preformed guiding tube, guiding tube have the guiding tube cavity connected with delivery conduit inner chamber passed through for the seal wire and support.
2. foley's tube conveying device is used in entocranial artery shaping according to claim 1, it is characterised in that：It is described plastic to draw
The length of conduit is 13 ~ 17mm.
3. foley's tube conveying device is used in entocranial artery shaping according to claim 1, it is characterised in that：It is described plastic to draw
The length of conduit is 15mm.
4. foley's tube conveying device is used in entocranial artery shaping according to claim 1, it is characterised in that：In delivery conduit
Hydrophilic coating is scribbled in chamber cavity wall and the inner chamber cavity wall of guiding tube.
5. foley's tube conveying device is used in entocranial artery shaping according to claim 1, it is characterised in that：Plastic guiding tube
One end end away from sacculus is provided with guiding tube developing mark.
6. foley's tube conveying device is used in entocranial artery shaping according to claim 1, it is characterised in that：Delivery conduit,
The opening position adjacent with sacculus is provided with sacculus developing mark on guiding tube.
7. foley's tube conveying device is used in entocranial artery shaping according to claim 1, it is characterised in that：The guiding tube
For the preformed guiding tube with elbow section, the bent angle of elbow section is 1 ~ 45 degree.
8. foley's tube conveying device is used in entocranial artery shaping according to claim 7, it is characterised in that：The elbow section
Bent angle be 45 degree.
9. foley's tube conveying device is used in the entocranial artery shaping according to claim 1 ~ 8 any one, it is characterised in that：
The inner chamber and periphery of the guiding tube are cylindrical surface structure.
10. foley's tube conveying device is used in entocranial artery shaping according to claim 9, it is characterised in that：The guiding
The external diameter of pipe is 0.67--0.75mm, and internal diameter is 0.50 ~ 0.55mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091411.6A CN107669382A (en) | 2017-11-08 | 2017-11-08 | Foley's tube conveying device is used in a kind of entocranial artery shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091411.6A CN107669382A (en) | 2017-11-08 | 2017-11-08 | Foley's tube conveying device is used in a kind of entocranial artery shaping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107669382A true CN107669382A (en) | 2018-02-09 |
Family
ID=61145990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711091411.6A Pending CN107669382A (en) | 2017-11-08 | 2017-11-08 | Foley's tube conveying device is used in a kind of entocranial artery shaping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107669382A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745145A (en) * | 2019-01-29 | 2019-05-14 | 王赞鑫 | Initiative pulse support blood vessel system and application method of the top with sacculus |
| CN110478601A (en) * | 2019-08-28 | 2019-11-22 | 赛诺医疗科学技术股份有限公司 | Foley's tube |
| CN116271457A (en) * | 2023-05-23 | 2023-06-23 | 杭州亿科医疗科技有限公司 | Force-gathering expansion balloon and force-gathering expansion balloon system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616652A (en) * | 1983-10-19 | 1986-10-14 | Advanced Cardiovascular Systems, Inc. | Dilatation catheter positioning apparatus |
| JP2002119598A (en) * | 2000-10-13 | 2002-04-23 | Unitika Ltd | Indwelling balloon intracatheter |
| US20020099433A1 (en) * | 1999-11-22 | 2002-07-25 | Fischell Robert E. | Stent delivery system with a fixed guide wire |
| CN103239795A (en) * | 2013-05-13 | 2013-08-14 | 上海凯利泰医疗科技股份有限公司 | Guide-wire-free bending controllable balloon catheter device and use method thereof |
| CN203989426U (en) * | 2014-08-01 | 2014-12-10 | 深圳市金瑞凯利生物科技有限公司 | Sacculus dilating catheter |
| CN204147401U (en) * | 2014-07-24 | 2015-02-11 | 深圳市金瑞凯利生物科技有限公司 | A kind of foley's tube with spinous process |
| CN105126231A (en) * | 2015-09-15 | 2015-12-09 | 仇汉诚 | Balloon catheter |
-
2017
- 2017-11-08 CN CN201711091411.6A patent/CN107669382A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616652A (en) * | 1983-10-19 | 1986-10-14 | Advanced Cardiovascular Systems, Inc. | Dilatation catheter positioning apparatus |
| US20020099433A1 (en) * | 1999-11-22 | 2002-07-25 | Fischell Robert E. | Stent delivery system with a fixed guide wire |
| JP2002119598A (en) * | 2000-10-13 | 2002-04-23 | Unitika Ltd | Indwelling balloon intracatheter |
| CN103239795A (en) * | 2013-05-13 | 2013-08-14 | 上海凯利泰医疗科技股份有限公司 | Guide-wire-free bending controllable balloon catheter device and use method thereof |
| CN204147401U (en) * | 2014-07-24 | 2015-02-11 | 深圳市金瑞凯利生物科技有限公司 | A kind of foley's tube with spinous process |
| CN203989426U (en) * | 2014-08-01 | 2014-12-10 | 深圳市金瑞凯利生物科技有限公司 | Sacculus dilating catheter |
| CN105126231A (en) * | 2015-09-15 | 2015-12-09 | 仇汉诚 | Balloon catheter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745145A (en) * | 2019-01-29 | 2019-05-14 | 王赞鑫 | Initiative pulse support blood vessel system and application method of the top with sacculus |
| CN110478601A (en) * | 2019-08-28 | 2019-11-22 | 赛诺医疗科学技术股份有限公司 | Foley's tube |
| CN116271457A (en) * | 2023-05-23 | 2023-06-23 | 杭州亿科医疗科技有限公司 | Force-gathering expansion balloon and force-gathering expansion balloon system |
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