WO2022137763A1 - Ballonnet pour cathéter à ballonnet - Google Patents
Ballonnet pour cathéter à ballonnet Download PDFInfo
- Publication number
- WO2022137763A1 WO2022137763A1 PCT/JP2021/038819 JP2021038819W WO2022137763A1 WO 2022137763 A1 WO2022137763 A1 WO 2022137763A1 JP 2021038819 W JP2021038819 W JP 2021038819W WO 2022137763 A1 WO2022137763 A1 WO 2022137763A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- balloon
- distal
- proximal
- tip
- balloon body
- Prior art date
Links
- 238000003825 pressing Methods 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- 230000008602 contraction Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 230000003902 lesion Effects 0.000 description 19
- 208000031481 Pathologic Constriction Diseases 0.000 description 18
- 230000036262 stenosis Effects 0.000 description 18
- 208000037804 stenosis Diseases 0.000 description 18
- 239000012530 fluid Substances 0.000 description 15
- 229920005989 resin Polymers 0.000 description 15
- 239000011347 resin Substances 0.000 description 15
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 229920002647 polyamide Polymers 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 7
- 239000000806 elastomer Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 210000004204 blood vessel Anatomy 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 3
- 238000002399 angioplasty Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 2
- 229920000299 Nylon 12 Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000071 blow moulding Methods 0.000 description 2
- 230000002308 calcification Effects 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920006146 polyetheresteramide block copolymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 206010002383 Angina Pectoris Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 208000037803 restenosis Diseases 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
Definitions
- Angioplasty which uses a balloon catheter to dilate the stenosis.
- Angioplasty is a minimally invasive therapy that does not require thoracotomy, such as bypass surgery, and is widely practiced.
- Patent Document 1 has a scoring element made of a polymer material having a higher rigidity than the polymer material forming the balloon body, and the scoring element is provided at one end and the other end of the balloon.
- Patent Document 2 has a scoring balloon structure in which the height of the scoring element decreases along the tapered shape of the balloon. Discloses a balloon catheter provided with a medial protrusion.
- the present invention also provides the method for manufacturing a balloon for a balloon catheter described above.
- a manufacturing method according to an embodiment of the present invention has a space portion extending in the longitudinal axis direction inside, and has a holding member on the inner side surface that can be recessed from the outside to the inside.
- FIG. 12 shows a partial cross-sectional view in the longitudinal axis direction in a contracted state of the balloon according to still another embodiment of the present invention, that is, a cross-sectional view of the balloon membrane including the balloon body and the protrusion.
- FIG. 13 shows a plan view of the balloon shown in FIG. 2 as viewed from the protruding portion side.
- the tip portion 61 of at least one of the protruding portions 60 of the distal tapered portion 24 and the proximal tapered portion 22 is outward in the radial direction y of the balloon body 20 so as to satisfy the above predetermined conditions. Since the balloon 2 is delivered to the lesion, the stenosis can be incised by the tip 61 while the balloon 2 is advanced or retracted in the contracted state during the delivery of the balloon 2 or when the balloon 2 is delivered to the lesion.
- FIG. 4 showing a sectional view of the straight pipe portion 23 in the contracted state in the radial direction y
- FIG. 5 showing a sectional view of the tapered portion (distal side tapered portion 24 or proximal side tapered portion 22) showing the radial direction y.
- the straight pipe portion 23 is the portion of the balloon 2 having the maximum diameter in the expanded state and the tapered portion is the diameter-reduced portion, the blade 29 of the straight pipe portion 23 in the radial cross section.
- the length y in the radial direction is longer than the length y in the radial direction of the blade 29 of the tapered portion.
- the tip 61 of the protrusion 60 is not arranged outward in the radial direction y of the balloon 20, the diameter of the distal tapered portion 24 that first passes through the body cavity when advancing the balloon 20 should be reduced. Therefore, the balloon 2 can be contracted and easily passed through the body cavity, and the constricted portion can be incised by the tip portion 61 of the protruding portion 60 of the proximal side tapered portion 22.
- the tip portion 61 of the protruding portion 60 is arranged outward in the radial direction y of the balloon body 20 so as to satisfy the above-mentioned predetermined condition only in the distal side tapered portion 24, and in the proximal side tapered portion 22.
- the amount of protrusion of the tip portion 61 of the protrusion 60 in the radial direction of the balloon body 20 is adjusted by the amount at which the inner surface of the balloon body 20 of the portion where the protrusion 60 is formed floats from the shaft 3 (inner tube 32). It can be adjusted by the length of the protruding portion 60 in the radial direction y in the radial direction y, but from the viewpoint of the insertability in the expanded state of the balloon 2, in the radial direction y of the tip portion 61.
- the amount of protrusion is preferably adjusted by the amount at which the inner surface of the balloon body 20 at the portion where the protrusion 60 is formed floats from the shaft 3.
- the balloon body 20 has a blade forming portion 28 that forms a blade 29 in a contracted state, and the protruding portion 60 is arranged in addition to the blade forming portion 28. It is preferable that it is. If the protrusion 60 is arranged other than the blade forming portion 28, the protrusion 60 does not hinder the folding of the blade 29, so that the balloon 2 can be easily folded, and the outer diameter of the balloon 2 in the folded state can be easily folded. Can be suppressed. In a more preferred embodiment, as shown in FIGS. 4 and 5, a plurality of blades 29 are formed in a contracted state, and the protrusions 60 are preferably arranged between the plurality of blades 29.
- a tubular parison 200 made of a resin as shown in FIG. 14 is placed in a mold having a groove in the lumen, and biaxially stretched blow molding is performed.
- the protrusion 60 inserts the parison 200 into the lumen of the mold, inserts the thick portion 220 of the parison 200 into the groove of the mold, and introduces a fluid into the lumen 210 of the parison 200 to introduce the parison 200. It can be formed by inflating.
- the length of the first tubular object 310 in the longitudinal axis direction x, the length of the second tubular object 320 in the longitudinal axis direction x, and the length of the third tubular object 330 in the longitudinal axis direction x are It should be approximately the same as the length of the distal taper portion 24 in the longitudinal direction x, the length of the proximal taper portion 22 in the longitudinal axis direction x, and the length of the straight pipe portion 23 in the longitudinal axis direction x, respectively. preferable.
- the space inside the first cylindrical object 310, the second tubular object 320, and the third tubular object 330 has a diameter slightly larger than the outer diameter of the straight pipe portion 23. Is preferable.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Child & Adolescent Psychology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
La présente divulgation concerne un ballonnet pour un cathéter à ballonnet qui peut inciser une partie rétrécie à l'état contracté. Le ballonnet pour un cathéter à ballonnet a un corps de ballonnet (20) et une partie en saillie (60) qui a une partie d'extrémité de pointe (61), et satisfait aux conditions (1) et/ou (2) ci-dessous. (1) La partie d'extrémité de pointe (61) de D20 à D50 d'une partie effilée côté distal (24) est disposée vers l'extérieur dans la direction radiale y par rapport à une surface incurvée virtuelle Cd qui est obtenue par rotation autour de l'axe central (20C) d'une ligne droite Ld reliant la partie d'extrémité de pointe (61) de D0 et la partie d'extrémité de pointe (61) de D100. (2) La partie d'extrémité de pointe (61) de D20 à D50 d'une partie effilée côté proximal (22) est disposée vers l'extérieur dans la direction radiale y par rapport à une surface incurvée virtuelle Cp qui est obtenue par rotation autour de l'axe central (20C) d'une ligne droite Lp reliant la partie d'extrémité de pointe (61) de D0 et la partie d'extrémité de pointe (61) de D100.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022571903A JPWO2022137763A1 (fr) | 2020-12-24 | 2021-10-20 | |
| CN202180085823.7A CN116635105A (zh) | 2020-12-24 | 2021-10-20 | 球囊导管用球囊 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020215753 | 2020-12-24 | ||
| JP2020-215753 | 2020-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022137763A1 true WO2022137763A1 (fr) | 2022-06-30 |
Family
ID=82158946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2021/038819 WO2022137763A1 (fr) | 2020-12-24 | 2021-10-20 | Ballonnet pour cathéter à ballonnet |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2022137763A1 (fr) |
| CN (1) | CN116635105A (fr) |
| WO (1) | WO2022137763A1 (fr) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792158A (en) * | 1995-11-15 | 1998-08-11 | Lary; Banning Gray | University dilator with expandable incisor |
| JP2006340914A (ja) * | 2005-06-09 | 2006-12-21 | Sekisui Chem Co Ltd | バルーンカテーテル |
| JP2018102353A (ja) * | 2016-12-22 | 2018-07-05 | テルモ株式会社 | バルーンカテーテル及びそれを用いた処置方法 |
-
2021
- 2021-10-20 JP JP2022571903A patent/JPWO2022137763A1/ja active Pending
- 2021-10-20 WO PCT/JP2021/038819 patent/WO2022137763A1/fr active Application Filing
- 2021-10-20 CN CN202180085823.7A patent/CN116635105A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792158A (en) * | 1995-11-15 | 1998-08-11 | Lary; Banning Gray | University dilator with expandable incisor |
| JP2006340914A (ja) * | 2005-06-09 | 2006-12-21 | Sekisui Chem Co Ltd | バルーンカテーテル |
| JP2018102353A (ja) * | 2016-12-22 | 2018-07-05 | テルモ株式会社 | バルーンカテーテル及びそれを用いた処置方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2022137763A1 (fr) | 2022-06-30 |
| CN116635105A (zh) | 2023-08-22 |
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