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公开(公告)号：US5209727A
公开(公告)日：1993-05-11
申请号：US827330
申请日：1992-01-29
IPC分类号： A61M29/02
CPC分类号： A61M25/09 , A61M2025/09008 , A61M2025/09066
摘要： An angioplasty device for dilating the lumen of a human blood vessel has a balloon and a tubular guide wire bonded to one end of the balloon. The guide wire is in fluid communication with the balloon. A guide extension is bonded to the opposite end of the balloon from the guide wire. An elongated spring member is positioned within the balloon, and is bonded at one end of the spring to the guide wire and at the opposite end of the spring to the guide extension to interconnect the wire and the extension. The spring member is attached between the wire and the extension in compression to urge the balloon into a collapsed configuration when the balloon is not inflated with fluid. The guide wire is strengthened by bonding a helical structural member to the outer wall of the guide wire.
摘要翻译： 用于扩张人血管腔的血管成形术装置具有气球和连接到气囊的一端的管状引导线。 导丝与球囊流体连通。 引导延伸部从引导线结合到球囊的相对端。 细长的弹簧构件定位在球囊内，并且在弹簧的一端处连接到导丝线并且在弹簧的相对端处连接到引导件延伸部以使线材和延伸部互连。 当气囊未被流体充气时，弹簧构件被连接在电线和延伸部之间以压缩，以将气囊推入塌缩构型。 通过将螺旋结构构件接合到导丝的外壁来加强导丝。
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公开(公告)号：US4895166A
公开(公告)日：1990-01-23
申请号：US123713
申请日：1987-11-23
CPC分类号： A61B17/320758
摘要： A cutter penetrates at its forward end into, and excises, obstructive tissue in a lumen in a living being by providing two spaced external segments of a conical generally hollow portion with cutting surfaces at their edges. The cutter may have a forward portion of restricted dimensions to facilitate the penetration of the cutter into the obstructive tissue. A progressively expanding portion such as a truncated cone extends rearwardly from the portion of restricted dimensions. In this way, the cutter expands the area of excision of the obstructive tissue from the lumen wall at progressive positions rearwardly from the forward end. The obstructive tissue in the lumen at the progressively expanding positions may be excised at the positions of penetration of the obstructive tissue by rotating the cutter manually or by a motor. The cutter may then be moved forwardly to penetrate the obstructive tissue through an additional distance in the lumen. The cutter may also have a hollow portion of substantially constant dimensions, such as a hollow cylinder, at the laterally expanded end. This hollow cylinder is coupled to a torque tube which has strong and resilient properties to follow the contour of the lumen and to communicate a penetrating force to the forward end of the cutter and a torque to the cutter to rotate the cutter. A vacuum may be applied to the cutter through the torque tube to remove fragments of obstructive tissue excised from the lumen.
摘要翻译： 切割器通过在其边缘处设置切割表面的两个具有锥形的中空部分的间隔开的外部部分，在其前端穿过其中并阻塞生物体腔内的阻塞性组织。 切割器可以具有限制尺寸的前部，以便于切割器穿入阻塞性组织。 逐渐扩大的部分，例如截头圆锥体从受限尺寸的部分向后延伸。 以这种方式，切割器从前端向后扩展从阻塞性组织切除的区域。 在逐渐扩大的位置处的内腔中的阻塞性组织可以通过手动或电动机旋转切割器在阻塞性组织的穿透位置处被切除。 然后可以向前移动切割器以在管腔中通过另外的距离穿透阻塞性组织。 切割器还可以在横向扩展的端部处具有基本恒定尺寸的中空部分，例如中空圆柱体。 该中空圆柱体连接到扭矩管，该扭矩管具有强烈和弹性的特性，以跟随管腔的轮廓并且将穿透力传递到切割器的前端，并且向切割器传递扭矩以使切割器旋转。 可以通过扭矩管向切割器施加真空以去除从内腔切除的阻塞性组织的碎片。
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公开(公告)号：US5026384A
公开(公告)日：1991-06-25
申请号：US433032
申请日：1989-11-07
CPC分类号： A61B17/320758
摘要： An atherectomy system includes a guide wire which can be inserted into an artery of a patient to a region of occlusion, a torque tube having a cutter device affixed to its distal end which is insertable into the artery over the guide wire, and a protective support sheath surrounding the guide wire and the torque tube. A retraction device controllably retracts the support sheath so as to allow the cutter on the distal end of the torque tube to extend progressively greater distances beyond the distal end of the support sheath. The system also includes means for rotating the torque tube, thereby simultaneously rotating the cutter, and vacuum means connected to the torque tube for extracting dislodged cuttings from the patient's bloodstream. The guide wire is preferably provided with an abutment on its distal end which both mechanically limits the distance the cutter can advance into the patient's body and assists in retrieving the cutter from the patient's body following the atherectomy operation.
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公开(公告)号：US4942788A
公开(公告)日：1990-07-24
申请号：US386905
申请日：1989-07-26
IPC分类号： A61B17/22
CPC分类号： A61B17/320758
摘要： A cutter penetrates at its forward end into, and excises, obstructive tissue in a lumen in a living being by providing two spaced external segments of a conical generally hollow portion with cutting surfaces at their edges. The cutter may have a forward portion of restricted dimensions to facilitate the penetration of the cutter into the obstructive tissue. A progressively expanding portion such as a truncated cone extends rearwardly from the portion of restricted dimensions. In this way, the cutter expands the area of excision of the obstructive tissue from the lumen wall at progressive positions rearwardly from the forward end. The obstructive tissue in the lumen at the progressively expanding positions may be excised at the positions of penetration of the obstructive tissue by rotating the cutter manually or by a motor. The cutter may then be moved forwardly to penetrate the obstructive tissue through an additional distance in the lumen. The cutter may also have a hollow portion of substantially constant dimensions, such as a hollow cylinder, at the laterally expanded end. This hollow cylinder is coupled to a torque tube which has strong and resilient properties to follow the contour of the lumen and to communicate a penetrating force to the forward end of the cutter and a torque to the cutter to rotate the cutter. A vacuum may be applied to the cutter through the torque tube to remove fragments of obstructive tissue excised from the lumen.
摘要翻译： 切割器通过在其边缘处设置切割表面的两个具有锥形的中空部分的间隔开的外部部分，在其前端穿过其中并阻塞生物体腔内的阻塞性组织。 切割器可以具有限制尺寸的前部，以便于切割器穿入阻塞性组织。 逐渐扩大的部分，例如截头圆锥体从受限尺寸的部分向后延伸。 以这种方式，切割器从前端向后扩展从阻塞性组织切除的区域。 在逐渐扩大的位置处的内腔中的阻塞性组织可以通过手动或电动机旋转切割器在阻塞性组织的穿透位置处被切除。 然后可以向前移动切割器以在管腔中通过另外的距离穿透阻塞性组织。 切割器还可以在横向扩展的端部处具有基本恒定尺寸的中空部分，例如中空圆柱体。 该中空圆柱体连接到扭矩管，该扭矩管具有强烈和弹性的特性，以跟随管腔的轮廓并且将穿透力传递到切割器的前端，并且向切割器传递扭矩以使切割器旋转。 可以通过扭矩管向切割器施加真空以去除从内腔切除的阻塞性组织的碎片。
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公开(公告)号：US5101682A
公开(公告)日：1992-04-07
申请号：US549186
申请日：1990-07-06
CPC分类号： F16C1/26 , A61M25/005 , A61B2017/22001 , A61M25/0053 , Y10T428/12611 , Y10T428/12924 , Y10T74/20456 , Y10T74/20462
摘要： A reinforced tubing has an inner continuous hollow metallic tube. To strengthen the tube, a metallic helical structural member is bonded in tension by nickel or cobalt electroplating to the outside wall of the tube. Thus, a surrounding layer of electroplated material (i.e. nickel or cobalt) covers the tube and the structural member to bond the structural member to the tube. The individual coils of the helical structural member are spaced apart, so that the edges of successive coils do not touch or overlap. Importantly, the angular pitch between successive coils is in the range 20.degree.-60.degree., the pitch being variable throughout the length of the tubing.For applications wherein the tubing is to be used as a rigid platform, a longitudinal stiffening member may be bonded to the inside of the tube. Additionally, regardless of the particular application of the tubing, a polymeric coating may be molded onto the outside of the tube, the helical structural member, and the surrounding electroplated layer to cover and protect the tubing.
摘要翻译： 加强管具有内连续的中空金属管。 为了加强管，通过镍或钴电镀将金属螺旋结构构件张紧地接合到管的外壁。 因此，电镀材料（即镍或钴）的周围层覆盖管和结构构件以将结构构件结合到管。 螺旋结构构件的单个线圈间隔开，使得连续线圈的边缘不接触或重叠。 重要的是，连续线圈之间的角度间距在20°-60°的范围内，间距在管道的整个长度上是可变的。 对于其中管道用作刚性平台的应用，纵向加强构件可以结合到管的内部。 另外，无论管道的具体应用如何，聚合物涂层可以模制在管的外侧，螺旋结构构件和周围的电镀层上，以覆盖和保护管道。
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公开(公告)号：US4887613A
公开(公告)日：1989-12-19
申请号：US213691
申请日：1988-06-30
CPC分类号： A61B17/320758
摘要： A cutter penetrates at its forward end into, and excises, obstructive tissue in a lumen in a living being by providing two spaced external segments of a conical generally hollow portion with cutting surfaces at their edges. The cutter may have a forward portion of restricted dimensions to facilitate the penetration of the cutter into the obstructive tissue. A progressively expanding portion such as a truncated cone extends rearwardly from the portion of restricted dimensions. In this way, the cutter expands the area of excision of the obstructive tissue from the lumen wall at progressive positions rearwardly from the forward end. The obstructive tissue in the lumen at the progressively expanding positions may be excised at the positions of penetration of the obstructive tissue by rotating the cutter manually or by a motor. The cutter may then be moved forwardly to penetrate the obstructive tissue through an additional distance in the lumen. The cutter may also have a hollow portion of substantially constant dimensions, such as a hollow cylinder, at the laterally expanded end. This hollow cylinder is coupled to a torque tube which has strong and resilient properties to follow the contour of the lumen and to communicate a penetrating force to the forward end of the cutter and a torque to the cutter to rotate the cutter. A vacuum may be applied to the cutter through the torque tube to remove fragments of obstructive tissue excised from the lumen.
摘要翻译： 切割器通过在其边缘处设置切割表面的两个具有锥形的中空部分的间隔开的外部部分，在其前端穿过其中并阻塞生物体腔内的阻塞性组织。 切割器可以具有限制尺寸的前部，以便于切割器穿入阻塞性组织。 逐渐扩大的部分，例如截头圆锥体从受限尺寸的部分向后延伸。 以这种方式，切割器从前端向后扩展从阻塞性组织切除的区域。 在逐渐扩大的位置处的内腔中的阻塞性组织可以通过手动或电动机旋转切割器在阻塞性组织的穿透位置处被切除。 然后可以向前移动切割器以在管腔中通过另外的距离穿透阻塞性组织。 切割器还可以在横向扩展的端部处具有基本恒定尺寸的中空部分，例如中空圆柱体。 该中空圆柱体连接到扭矩管，该扭矩管具有强烈和弹性的特性，以跟随管腔的轮廓并且将穿透力传递到切割器的前端，并且向切割器传递扭矩以使切割器旋转。 可以通过扭矩管向切割器施加真空以去除从内腔切除的阻塞性组织的碎片。
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公开(公告)号：US5226887A
公开(公告)日：1993-07-13
申请号：US832366
申请日：1992-02-07
CPC分类号： A61M25/1027 , A61M25/1038 , A61M25/104 , A61M2025/1004 , A61M2025/1084 , A61M25/1002
摘要： An inflatable angioplasty balloon is formed in an unstressed configuration for inflation into an expanded configuration and deflation into a collapsed configuration. The balloon has a body portion and two hollow end portions, with the end portions being attached to opposite ends of the body portion.In the balloon's unstressed configuration, the body portion has three flat folding regions extending the length of the body portion. Successive folding regions are separated from each other by curved reinforcing regions. The end portions are configured and oriented to guide the folding regions of the balloon into a pleated, collapsed configuration when the interior of the balloon is evacuated.
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公开(公告)号：US4950277A
公开(公告)日：1990-08-21
申请号：US299146
申请日：1989-01-23
申请人： Andrew F. Farr
发明人： Andrew F. Farr
IPC分类号： A61B17/32 , A61B17/22 , A61B17/3211
CPC分类号： A61B17/320758 , A61B2017/22038
摘要： An atherectomy cutting device for removing obstructive tissue from the lumen of a body vessel comprises a guide wire positionable in the lumen of the vessel, and a rotatable cutter supported on an eccentric wire. The eccentric wire has a distal portion extension establishing a substantially right angle with the eccentric wire and having a ring to permit sliding movement of the eccentric wire and cutter along the guide wire. The extension and eccentric wire also permit manipulative movement of the rotatable cutter in an arc around the guide wire. There is included a dual lumen sheath having a first lumen for supporting the guide wire and a second lumen for supporting the eccentric wire carrying the rotatable cutter.Also included is a method for removing obstructive tissue which involves manipulating the eccentric wire about the guide wire to move the cutter in an arc about the guide wire and thus increase the portion of obstructive tissue contacted by the cutter.
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公开(公告)号：US5112345A
公开(公告)日：1992-05-12
申请号：US628397
申请日：1990-12-17
申请人： Andrew F. Farr
发明人： Andrew F. Farr
IPC分类号： A61B17/22
CPC分类号： A61B17/320758 , A61B2017/22045
摘要： An over-the-wire atherectomy cutter includes a hollow cylindrical sleeve which is coaxially attached at its proximal end to a hollow rotatable catheter. The periphery of the distal end of the sleeve is sharpened.A hollow, substantially cylindrical body is coaxially positioned within the sleeve in an interference fit. A frustum-shaped portion is formed on the distal end of the body and tapers inwardly toward a hollow cylindrical distal tip. The frustum-shaped portion has two openings which extend the axial length of the frustum-shaped portion, to create a pair of straight blades that connect the body to the tip. The straight blades are contiguous to the sharpened distal end of the sleeve to establish a pair of diametrically opposed arcuate cutting edges that are positioned on the distal end of sleeve.
摘要翻译： 线上粥样斑块切除刀具包括中空圆柱形套筒，其中心圆柱形套筒的近端同轴地连接到中空的可旋转导管。 套筒末端的周边被磨削。 中空的基本上圆柱形的主体以过盈配合同轴地定位在套筒内。 截头锥形部分形成在主体的远端上并向内朝向中空的圆柱形远端尖端逐渐变细。 截头锥形部分具有延伸截头锥形部分的轴向长度的两个开口，以产生将主体连接到尖端的一对直叶片。 直的刀片与套筒的锋利的远端邻接，以建立一对直径相对的弧形切割边缘，其位于套筒的远端上。
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公开(公告)号：US5019088A
公开(公告)日：1991-05-28
申请号：US432512
申请日：1989-11-07
申请人： Andrew F. Farr
发明人： Andrew F. Farr
CPC分类号： A61B17/320758
摘要： A rotatable atherectomy cutter for removing obstructive tissue from a body vessel includes a hollow cylindrical base having an outer wall, a hollow cylindrical guide tip coaxially distanced from the base for slidably receiving a guide wire and a pair of dismetrically opposed blades each having a distal end and a proximal end. The distal end of each blade is connected to the guide tip and the proximal end connected to the base for alternately cutting the tissue with a first cutting edge and a second cutting edge longer than the first cutting edge. The proximal end of each blade is connected to an ovoid portion formed in the base for allowing the second cutting edge of the blade to extend beyond the outer diameter of the cylindrical base to cut a diameter of tissue larger than the diameter of the base. The base includes a straight wall portion connecting the pair of blades to establish the first cutting edge on each of the blades. The blades are inclined to the longitudinal axis of the cutter at an angle in the range of between thirty 30) and seventy (70) degrees and are preferably made of stainless steel. Also included is a mechanism for removing debris through an opening in the top of the base. The ovoid portion extends the second cutting edge of the blades beyond the outer wall a distance of approximately five (5) to ten 10) percent of the diameter of the base.
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