WO2009146248A1 - Eccentric abrading and cutting head for high-speed rotational atherectomy devices - Google Patents
Eccentric abrading and cutting head for high-speed rotational atherectomy devices Download PDFInfo
- Publication number
- WO2009146248A1 WO2009146248A1 PCT/US2009/043451 US2009043451W WO2009146248A1 WO 2009146248 A1 WO2009146248 A1 WO 2009146248A1 US 2009043451 W US2009043451 W US 2009043451W WO 2009146248 A1 WO2009146248 A1 WO 2009146248A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive shaft
- atherectomy device
- rotational
- rotational atherectomy
- axis
- Prior art date
Links
- 208000031481 Pathologic Constriction Diseases 0.000 claims abstract description 45
- 230000036262 stenosis Effects 0.000 claims abstract description 36
- 208000037804 stenosis Diseases 0.000 claims abstract description 36
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- 208000014674 injury Diseases 0.000 abstract description 13
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- 230000008733 trauma Effects 0.000 abstract description 13
- 230000003902 lesion Effects 0.000 abstract description 9
- 230000000284 resting effect Effects 0.000 abstract description 6
- 210000001519 tissue Anatomy 0.000 description 49
- 239000002245 particle Substances 0.000 description 12
- 239000003082 abrasive agent Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 208000037260 Atherosclerotic Plaque Diseases 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000002399 angioplasty Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
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- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 231100000241 scar Toxicity 0.000 description 2
- 230000000472 traumatic effect Effects 0.000 description 2
- 206010002383 Angina Pectoris Diseases 0.000 description 1
- 201000001320 Atherosclerosis Diseases 0.000 description 1
- 229910052580 B4C Inorganic materials 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
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- 230000000903 blocking effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
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- 230000004927 fusion Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
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- 238000007788 roughening Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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- 229910052721 tungsten Inorganic materials 0.000 description 1
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- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
- A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B2017/320004—Surgical cutting instruments abrasive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
- A61B2017/320766—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven eccentric
Definitions
- the distal portion 40 of the enlarged abrading head 28 has an outer surface which is substantially defined by the lateral surface of a frustum of a cone, the cone having an axis 42 which also intersects the rotational axis 21 of the drive shaft 20 at a relatively shallow angle ⁇ .
- the cone axis 32 of the proximal portion 30 and the cone axis 42 of the distal portion 40 intersect each other and are coplanar with the longitudinal rotational axis 21 of the drive shaft.
- FIG 15 illustrates an abrading head similar to that provided in Figures 7-11 but with flexibility slots 46 being disposed on the abrading head 28.
- the slots 46 are illustrated as being cut completely through the abrading head 28 and into lumen 23 to allow for maximum flex of the abrading head 28.
- the slots 46 need not extend into lumen 23 and may instead achieve flexibility by in effect scoring the abrading head 28 but not extending into lumen 23.
- abrading head 28 will flex with the flexible drive shaft 20 to ease negotiation of tortuous passageways within the subject lumen. Such flexibility in the abrading head 28 thus may provides a less traumatic entry enroute to the lesion to be abraded as well as a less traumatic exit therefrom.
- F c is the centrifugal force
- m is the mass of the eccentric enlarged abrading head
- ⁇ x is the distance between the center of mass of the eccentric enlarged abrading head and the rotational axis of the drive shaft
- n is the rotational speed in revolutions per minute (rpm).
- the abrading head 28 of the present invention comprises more mass than prior art high speed atherectomy abrading devices. As a result, a larger orbit may be achieved during high speed rotation which, in turn, allows for use of a smaller abrading head than with prior art devices. In addition to allowing for the creation of pilot holes in completely or substantially blocked arteries and the like, using a smaller abrading head will allow for greater ease of access and less trauma during insertion.
- At least a portion of the tissue removal section may rotate through a path having a diameter at least about 20% larger than the maximum nominal diameter of the eccentric enlarged abrading head 28, preferably at least about 25% larger than the maximum nominal diameter of the eccentric enlarged abrading head 28, and most preferably at least about 30% larger than the maximum nominal diameter of the eccentric enlarged abrading head 28.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2718074A CA2718074C (en) | 2008-05-30 | 2009-05-11 | Eccentric abrading and cutting head for high-speed rotational atherectomy devices |
AU2009251467A AU2009251467B2 (en) | 2008-05-30 | 2009-05-11 | Eccentric abrading and cutting head for high-speed rotational atherectomy devices |
NO09755610A NO2303149T3 (en) | 2008-05-30 | 2009-05-11 | |
CN200980119846.4A CN102046100B (en) | 2008-05-30 | 2009-05-11 | Eccentric abrading and cutting head for high-speed rotational atherectomy devices |
EP09755610.4A EP2303149B1 (en) | 2008-05-30 | 2009-05-11 | Eccentric abrading and cutting head for high-speed rotational atherectomy devices |
DK09755610.4T DK2303149T3 (en) | 2008-05-30 | 2009-05-11 | Eccentric grinding and cutting head for high speed rotary atherectomy devices |
JP2011511690A JP5653347B2 (en) | 2008-05-30 | 2009-05-11 | Eccentric polishing and cutting head for high speed rotary atherectomy devices |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/130,024 US8758377B2 (en) | 2008-05-30 | 2008-05-30 | Eccentric abrading and cutting head for high-speed rotational atherectomy devices |
US12/130,024 | 2008-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009146248A1 true WO2009146248A1 (en) | 2009-12-03 |
Family
ID=41377525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/043451 WO2009146248A1 (en) | 2008-05-30 | 2009-05-11 | Eccentric abrading and cutting head for high-speed rotational atherectomy devices |
Country Status (9)
Country | Link |
---|---|
US (1) | US8758377B2 (en) |
EP (1) | EP2303149B1 (en) |
JP (1) | JP5653347B2 (en) |
CN (1) | CN102046100B (en) |
AU (1) | AU2009251467B2 (en) |
CA (1) | CA2718074C (en) |
DK (1) | DK2303149T3 (en) |
NO (1) | NO2303149T3 (en) |
WO (1) | WO2009146248A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014042752A3 (en) * | 2012-09-17 | 2015-07-02 | Cardiovascular Systems, Inc. | Rotational atherectomy device with eccentric abrading heads |
US10869689B2 (en) | 2017-05-03 | 2020-12-22 | Medtronic Vascular, Inc. | Tissue-removing catheter |
US11690645B2 (en) | 2017-05-03 | 2023-07-04 | Medtronic Vascular, Inc. | Tissue-removing catheter |
US11819236B2 (en) | 2019-05-17 | 2023-11-21 | Medtronic Vascular, Inc. | Tissue-removing catheter |
Families Citing this family (19)
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US8551130B2 (en) * | 2010-02-18 | 2013-10-08 | Cardiovascular Systems, Inc. | Therapeutic agent delivery system, device and method for localized application of therapeutic substances to a biological conduit |
US9907567B2 (en) * | 2010-05-04 | 2018-03-06 | Samuel Shiber | Mechanical — pharmaceutical system for opening obstructed bodily vessels |
US20150005791A1 (en) * | 2013-06-28 | 2015-01-01 | Cardiovascular Systems, Inc. | Atherectomy device having combined open/close drive shaft |
US20150080795A1 (en) | 2013-07-26 | 2015-03-19 | Cardiovascular Systems, Inc. | Devices, systems and methods for performing atherectomy and subsequent balloon angioplasty without exchanging devices |
US10271869B2 (en) | 2014-03-01 | 2019-04-30 | Rex Medical, L.P. | Atherectomy device |
US9855070B2 (en) | 2014-03-12 | 2018-01-02 | Boston Scientific Limited | Infusion lubricated atherectomy catheter |
US10405878B2 (en) | 2014-07-25 | 2019-09-10 | Boston Scientific Scimed, Inc. | Rotatable medical device |
EP3226784B1 (en) | 2014-12-04 | 2020-09-09 | Boston Scientific Scimed, Inc. | Rotatable medical device |
US10463389B2 (en) | 2014-12-27 | 2019-11-05 | Rex Medical, L.P. | Atherectomy device |
US10433868B2 (en) | 2014-12-27 | 2019-10-08 | Rex Medical, L.P. | Artherectomy device |
US10226276B2 (en) | 2015-06-26 | 2019-03-12 | Covidien Lp | Tissue-removing catheter including operational control mechanism |
US11253292B2 (en) | 2015-09-13 | 2022-02-22 | Rex Medical, L.P. | Atherectomy device |
US10307175B2 (en) | 2016-03-26 | 2019-06-04 | Rex Medical, L.P | Atherectomy device |
CN106214216B (en) * | 2016-08-31 | 2019-01-25 | 赵萍萍 | A kind of thrombus removing instrument |
CN111513818A (en) * | 2020-05-12 | 2020-08-11 | 安徽一升医疗设备有限公司 | Rotary grinding interventional therapeutic apparatus for treating coronary artery calcification lesion |
CN114144131A (en) * | 2020-07-03 | 2022-03-04 | 为泰医疗器械(深圳)有限公司 | Rotary grinding device for calcified lesion in blood vessel |
CN112494111A (en) * | 2020-12-10 | 2021-03-16 | 蚌埠冠硕医疗科技有限公司 | Interventional rotational atherectomy device for arterial plaque |
CN114129227B (en) * | 2022-02-08 | 2022-05-10 | 广州博鑫医疗技术有限公司 | Manufacturing tool and manufacturing method of eccentric rotary grinding head and intrusive rotary grinding device |
WO2024026919A1 (en) * | 2022-08-05 | 2024-02-08 | 广州博鑫医疗技术有限公司 | Eccentric rotary grinding head, manufacturing method therefor, driving shaft, and interventional medical device |
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-
2008
- 2008-05-30 US US12/130,024 patent/US8758377B2/en active Active
-
2009
- 2009-05-11 AU AU2009251467A patent/AU2009251467B2/en active Active
- 2009-05-11 WO PCT/US2009/043451 patent/WO2009146248A1/en active Application Filing
- 2009-05-11 EP EP09755610.4A patent/EP2303149B1/en active Active
- 2009-05-11 DK DK09755610.4T patent/DK2303149T3/en active
- 2009-05-11 CN CN200980119846.4A patent/CN102046100B/en active Active
- 2009-05-11 JP JP2011511690A patent/JP5653347B2/en active Active
- 2009-05-11 CA CA2718074A patent/CA2718074C/en active Active
- 2009-05-11 NO NO09755610A patent/NO2303149T3/no unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US5314438A (en) * | 1992-12-17 | 1994-05-24 | Shturman Cardiology Systems, Inc. | Abrasive drive shaft device for rotational atherectomy |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014042752A3 (en) * | 2012-09-17 | 2015-07-02 | Cardiovascular Systems, Inc. | Rotational atherectomy device with eccentric abrading heads |
US9289230B2 (en) | 2012-09-17 | 2016-03-22 | Cardiovascular Systems, Inc. | Rotational atherectomy device with a system of eccentric abrading heads |
US10869689B2 (en) | 2017-05-03 | 2020-12-22 | Medtronic Vascular, Inc. | Tissue-removing catheter |
US10925632B2 (en) | 2017-05-03 | 2021-02-23 | Medtronic Vascular, Inc. | Tissue-removing catheter |
US10987126B2 (en) | 2017-05-03 | 2021-04-27 | Medtronic Vascular, Inc. | Tissue-removing catheter with guidewire isolation liner |
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Also Published As
Publication number | Publication date |
---|---|
US8758377B2 (en) | 2014-06-24 |
JP2011521713A (en) | 2011-07-28 |
JP5653347B2 (en) | 2015-01-14 |
AU2009251467A1 (en) | 2009-12-03 |
CN102046100A (en) | 2011-05-04 |
EP2303149B1 (en) | 2018-02-28 |
DK2303149T3 (en) | 2018-06-06 |
CA2718074C (en) | 2016-07-05 |
EP2303149A4 (en) | 2011-11-23 |
EP2303149A1 (en) | 2011-04-06 |
US20090299391A1 (en) | 2009-12-03 |
NO2303149T3 (en) | 2018-07-28 |
CA2718074A1 (en) | 2009-12-03 |
CN102046100B (en) | 2013-04-24 |
AU2009251467B2 (en) | 2014-07-10 |
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