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131. 发明授权

US5756632A Systems for premeating molecules of predetermined molecular weight range 失效
标题翻译：用于预分解预定分子量范围的分子的系统
公开(公告)号：US5756632A
公开(公告)日：1998-05-26
申请号：US460701
申请日：1995-06-02
申请人： Robert S. Ward , Kathleen A. White
发明人： Robert S. Ward , Kathleen A. White
IPC分类号： A61L27/18 , A61L29/06 , A61L31/06 , A61L33/06 , B01D69/08 , B01D71/54 , C07K1/34 , C08G18/12 , C08G18/28 , C08G18/44 , C08G18/48 , C08G18/65 , C08G18/66 , C08J5/18 , C12N11/08 , C08G77/04
CPC分类号： C12N11/08 , A61L27/18 , A61L29/06 , A61L31/06 , A61L33/068 , B01D69/08 , B01D71/54 , B01D71/80 , C07K1/34 , C08G18/12 , C08G18/283 , C08G18/2865 , C08G18/2885 , C08G18/289 , C08G18/44 , C08G18/4808 , C08G18/4833 , C08G18/4854 , C08G18/6674 , C08G18/6685 , B01D71/38 , B01D71/60
摘要： A biocompatible, hydrophilic, segmented block polyurethane copolymer which comprises 5 to 45 wt % of a hard segment and 95 to 55 wt % of a soft segment selected from a hydrophilic, hydrophobic and amphipathic oligomer is disclosed. The copolymer is capable of forming a non-porous, semi-permeable film of a tensile strength greater than 300 and up to 10,000 psi, and has an ultimate elongation greater than 300% and up to 1,500% and a water absorption such that the sum of the volume fraction of absorbed water and the hydrophilic volume fraction of the soft segment exceeds about 100% and is up to about 2,000% of the dry polymer volume. The film is permeable to cell nutrients and waste molecules of up to about 6,000 to 600,000 molecular weight and is substantially impermeable to cells and particulate matter. A non-porous, semi-permeable, biocompatible film is formed from the block copolymer of the invention in the form of a flexible sheet or a hollow fiber. Also disclosed is a method of permeating molecules of a predetermined molecular weight range while preventing the passage of larger molecular weight molecules, cells, and condensed phases of matter between two fluids comprising interposing between the two fluids the non-porous film of the invention.
摘要翻译：公开了一种生物相容的，亲水的，分段的嵌段聚氨酯共聚物，其包含5至45重量％的硬链段和95至55重量％的选自亲水性，疏水性和两亲性低聚物的软链段。共聚物能够形成拉伸强度大于300和高达10,000psi的无孔半透膜，并且具有大于300％和高达1500％的极限伸长率，并且吸水率使得总和的吸收水的体积分数和软链段的亲水体积分数超过约100％，高达干聚合物体积的约2,000％。该膜对细胞营养物和分子量高达约6,000至600,000的废物分子是可渗透的，并且对于细胞和颗粒物质是基本上不可渗透的。由本发明的嵌段共聚物以柔性片或中空纤维的形式形成无孔，半渗透的生物相容性膜。还公开了一种渗透预定分子量范围的分子的方法，同时防止在包含两种流体之间的两种流体之间的较大分子量分子，细胞和物质的冷凝相通过本发明的无孔膜。

132. 发明授权

US5702372A Lined infusion catheter 失效
标题翻译：内衬输液管
公开(公告)号：US5702372A
公开(公告)日：1997-12-30
申请号：US385498
申请日：1995-02-08
申请人： Timothy S. Nelson
发明人： Timothy S. Nelson
IPC分类号： A61L29/04 , A61L29/06 , A61L29/08 , A61M25/00
CPC分类号： A61M25/0045 , A61L29/041 , A61L29/06 , A61L29/085 , A61M2025/0047 , A61M2025/0048 , A61M25/0069
摘要： An infusion catheter for delivering drugs or other agents to selected sites in an organism, such as a human. In an alternate embodiment, a catheter system is disclosed having an infusion catheter and a pump that may be implanted or disposed outside the organism. In either embodiment, the free end of the catheter bears a rounded tip that has at least one elution hole for discharging an agent or drug to a selected site. The catheter has a tubular inner liner that is integral with the tip. The inner liner and tip are formed from a drug compatible polymeric material that is relatively nonporous and unreactive with the agent to be infused. A biocompatible flexible elastomeric tubular jacket surrounds the inner liner and a portion of the tip excluding that portion containing the elution hole or holes. Since the agent flowing in the catheter is isolated from the jacket while flowing through the catheter, and since the inner liner is relatively nonporous and unreactive with the agent to be infused, the agent is prevented from diffusing out of the catheter, adsorbing to the surface of the biocompatible jacket, reacting adversely with the jacket material or becoming exposed to substances diffusing through the jacket.
摘要翻译：用于将药物或其它试剂递送到生物体例如人的选定部位的输液导管。在替代实施例中，公开了具有输注导管和可以植入或设置在生物体外部的泵的导管系统。在任一实施例中，导管的自由端具有圆形尖端，其具有用于将药剂或药物排出到选定部位的至少一个洗脱孔。导管具有与尖端成一体的管状内衬。内衬和尖端由与药物相容的聚合物材料形成，其相对无孔并且与待注入的药剂不反应。生物相容的柔性弹性体管状护套围绕内衬和除了包含洗脱孔或孔的部分之外的尖端的一部分。由于在导管中流动的药剂在流过导管的同时与护套隔离，并且由于内衬相对无孔并且与待注射药物不反应，因此防止药剂扩散出导管，吸附到表面的生物相容性护套，与护套材料不利地反应或暴露于通过护套扩散的物质。

133. 发明授权

US5620698A Blends of absorbable polyoxaesters containing amines and/or amido groups 失效
标题翻译：含有胺和/或酰氨基的可吸收聚氧乙烯的共混物
公开(公告)号：US5620698A
公开(公告)日：1997-04-15
申请号：US665141
申请日：1996-06-14
申请人： Rao S. Bezwada , Dennis D. Jamiolkowski
发明人： Rao S. Bezwada , Dennis D. Jamiolkowski
IPC分类号： A61K47/30 , A61K9/20 , A61K9/22 , A61L15/00 , A61L15/22 , A61L15/26 , A61L15/60 , A61L17/10 , A61L27/00 , A61L27/18 , A61L27/52 , A61L29/04 , A61L29/06 , A61L29/14 , A61L31/00 , A61L31/04 , A61L31/06 , C08G63/66 , C08G63/664 , C08G63/672 , C08G69/40 , C08G69/44 , C08L67/00 , C08L67/02 , C08L101/00 , C09D167/00 , A61F2/00 , C08F20/00
CPC分类号： C08L67/025 , A61K9/204 , A61L15/225 , A61L15/26 , A61L15/60 , A61L17/105 , A61L27/18 , A61L27/52 , A61L29/049 , A61L29/06 , A61L29/145 , A61L31/041 , A61L31/06 , C08G63/66 , C08G63/664 , C08G63/672 , C08G69/40 , C08G69/44 , C08L67/00 , C09D167/00 , C08L101/00 , Y10T428/1352 , Y10T428/1355 , Y10T428/1362 , Y10T428/24 , Y10T428/249921 , Y10T428/249953 , Y10T428/29 , Y10T428/2904 , Y10T428/2913 , Y10T428/2947 , Y10T428/31551 , Y10T428/31786 , Y10T442/2295
摘要： The present invention describes aliphatic polyoxaesters containing amines and/or amido groups and blends thereof with other polymers that may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like. The aliphatic polyoxaesters of the present invention have a first divalent repeating unit of formula I:[O--C(O)--C(R.sub.1)(R.sub.2)--O--(R.sub.3)--O--C(R.sub.1)(R.sub.2)--C(O)--]Iand a second repeating unit of the formula:[--O--R.sub.12 --].sub.U, XVIand optionally a third repeating unit with a formula selected from the group consisting of:[--O--R.sub.4 --].sub.A, II[--O--R.sub.5 --C(O)--].sub.B, III([--O--R.sub.5 --C(O)].sub.P --O--).sub.L G XIand combinations thereof wherein R.sub.12 contains an internal amine or internal amide group.
摘要翻译：本发明描述了含有胺和/或酰胺基的脂族聚氧酯及其与可用于生产手术装置如缝线，带有连接针的缝合线，模制装置等的其它聚合物的共混物。本发明的脂族聚氧酸酯具有式I的第一个二价重复单元：[OC（O）-C（R 1）（R 2）-O-（R 3）-OC（R 1）（R 2）-C（O） ]和第二个具有下式的重复单元：[-O-R 12 - ] U，XVI和任选地具有选自以下的式的第三重复单元：[-O-R 4 - ] A，II [-O -R 5 -C（O） - ] B，III（[-O-R 5 -C（O）] PO-）LG XI及其组合，其中R 12含有内胺或内酰胺基。

134. 发明授权

US5510121A Glycosaminoglycan-synthetic polymer conjugates 失效
标题翻译：糖胺聚糖合成聚合物共轭物
公开(公告)号：US5510121A
公开(公告)日：1996-04-23
申请号：US434958
申请日：1995-05-04
申请人： Woonza M. Rhee , Richard A. Berg
发明人： Woonza M. Rhee , Richard A. Berg
IPC分类号： A61L27/00 , A61F2/00 , A61F2/06 , A61K38/00 , A61K47/48 , A61L24/10 , A61L26/00 , A61L27/18 , A61L27/20 , A61L27/24 , A61L27/26 , A61L27/34 , A61L27/44 , A61L27/54 , A61L29/04 , A61L29/06 , A61L29/16 , A61L31/04 , A61L31/10 , A61L31/12 , C07K14/495 , C07K14/78 , C08B37/00 , C08B37/08 , C08H1/06 , C08L89/06 , C09J189/06 , A61K35/12 , A61K35/14 , A61K35/24 , A61K35/37
CPC分类号： A61K47/48215 , A61K47/4823 , A61K47/48292 , A61L24/102 , A61L26/0033 , A61L27/18 , A61L27/20 , A61L27/24 , A61L27/26 , A61L27/34 , A61L27/44 , A61L27/54 , A61L29/043 , A61L29/045 , A61L29/06 , A61L29/16 , A61L31/041 , A61L31/042 , A61L31/044 , A61L31/10 , A61L31/125 , C07K14/495 , C07K14/78 , C08B37/0069 , C08B37/0072 , C08H1/06 , C08L89/06 , C09J189/06 , A61F2/07 , A61F2310/00365 , A61K38/00 , A61L2300/236 , A61L2300/252 , A61L2300/414 , A61L2300/802 , A61L2430/16 , Y10S525/937
摘要： Pharmaceutically acceptable, nonimmunogenic compositions are formed by covalently binding glycosaminoglycans or derivatives thereof, to hydrophilic synthetic polymers via specific types of chemical bonds to provide biocompatible conjugates. Useful glycosaminoglycans include hyaluronic acid, the chondroitin sulfates, keratan sulfate, chitin and heparin, each of which is chemically derivatized to react with a hydrophilic synthetic polymer. The conjugate comprising a glycosaminoglycan covalently bound to a hydrophilic synthetic polymer may be further bound to collagen to form a three component conjugate having different properties. The hydrophilic synthetic polymer may be polyethylene glycol and derivatives thereof having an average molecular weight over a range of from about 100 to about 100,000. The compositions may include other components such as fluid, pharmaceutically acceptable carders to form injectable formulations, and/or biologically active proteins such as growth factors or cytokines. The conjugates of the invention generally contain large amounts of water when formed. The conjugates can be dehydrated to form a relatively solid implant for use in hard tissue augmentation. The dehydrated, solid implant can further be ground into particles which can be suspended in a non-aqueous fluid and injected into a living being (preferably human) for soft tissue augmentation. Once in place, the solid implants or particles rehydrate and expand in size approximately three- to five-fold.
摘要翻译：药学上可接受的非免疫原性组合物通过将糖胺聚糖或其衍生物与亲水性合成聚合物共价结合而形成，通过特定类型的化学键提供生物相容性缀合物。有用的糖胺聚糖包括透明质酸，硫酸软骨素，硫酸角质素，几丁质和肝素，其中每一种都被化学衍生以与亲水性合成聚合物反应。共价结合亲水性合成聚合物的糖胺聚糖的缀合物可以进一步与胶原结合，形成具有不同性质的三组分共轭物。亲水性合成聚合物可以是平均分子量在约100至约100,000范围内的聚乙二醇及其衍生物。组合物可以包括其它组分如流体，药学上可接受的梳理剂以形成可注射制剂，和/或生物活性蛋白质例如生长因子或细胞因子。当形成时，本发明的共轭物通常含有大量的水。可以将缀合物脱水以形成用于硬组织增加的相对固体植入物。脱水的固体植入物可以进一步研磨成可以悬浮在非水性流体中的颗粒，并注入到生物体（优选人）中用于软组织增加。一旦到位，固体植入物或颗粒再水化并且尺寸扩大约三至五倍。

135. 发明授权

US5496291A Ionomeric modified poly-ether-ester plastic tube for use in conveying medical solutions and the like 失效
标题翻译：用于输送医疗溶液等的离聚物改性聚醚酯塑料管
公开(公告)号：US5496291A
公开(公告)日：1996-03-05
申请号：US219828
申请日：1994-03-30
申请人： Dudley W. C. Spencer
发明人： Dudley W. C. Spencer
IPC分类号： A61L29/04 , A61L29/06 , A61M39/08 , A61M25/00
CPC分类号： A61M39/08 , A61L29/049 , A61L29/06
摘要： An ionomeric modified poly-ether-ester plastic material is used as a substitute for the conventional uses of polyvinyl chloride in such applications as tubing for medical applications, for bags and other medical containers, for tubing in food processing and as sheets and films for bacterial and virus exclusion. The ionomeric modified poly-ether-ester has various advantages which make it particularly suitable for such uses.
摘要翻译：使用离聚物改性的聚醚醚酮塑料材料作为用于医疗用途的管材，袋子和其他医疗容器，食品加工用管材和用于细菌的片材和膜的常规用途的聚氯乙烯的替代品和病毒排除。离聚物改性聚醚醚具有各种优点，使其特别适用于这种用途。

136. 发明授权

US5413791A Collagen-polymer conjugates 失效
标题翻译：胶原 - 聚合物共轭物
公开(公告)号：US5413791A
公开(公告)日：1995-05-09
申请号：US198128
申请日：1994-02-17
申请人： Woonza Rhee , Donald G. Wallace , Alan S. Michaels , Ramon A. Burns, Jr. , Louis Fries , Frank DeLustro , Hanne Bentz
发明人： Woonza Rhee , Donald G. Wallace , Alan S. Michaels , Ramon A. Burns, Jr. , Louis Fries , Frank DeLustro , Hanne Bentz
IPC分类号： A61L27/00 , A61F2/00 , A61F2/06 , A61K38/00 , A61K38/17 , A61K38/21 , A61K38/22 , A61K45/06 , A61K47/48 , A61L15/22 , A61L24/10 , A61L26/00 , A61L27/18 , A61L27/20 , A61L27/24 , A61L27/26 , A61L27/34 , A61L27/44 , A61L27/54 , A61L29/04 , A61L29/06 , A61L29/16 , A61L31/04 , A61L31/10 , A61L31/12 , A61P17/00 , A61P43/00 , C07K14/495 , C07K14/78 , C08B37/08 , C08G81/00 , C08H1/00 , C08H1/06 , C08L89/00 , C08L89/06 , C09J189/06 , G02B1/04 , A61F13/00 , A61K9/14 , A61K9/50
CPC分类号： C08L89/06 , A61K47/48215 , A61K47/4823 , A61K47/48292 , A61L15/225 , A61L24/102 , A61L26/0033 , A61L27/18 , A61L27/20 , A61L27/24 , A61L27/26 , A61L27/34 , A61L27/44 , A61L27/54 , A61L29/043 , A61L29/045 , A61L29/06 , A61L29/16 , A61L31/041 , A61L31/042 , A61L31/044 , A61L31/10 , A61L31/125 , C07K14/495 , C07K14/78 , C08B37/0069 , C08B37/0072 , C08H1/06 , C09J189/06 , G02B1/043 , A61F2/07 , A61F2310/00365 , A61K38/00 , A61L2300/252 , A61L2300/414 , A61L2300/426 , A61L2300/62 , A61L2300/802 , A61L2430/16 , Y10S525/937
摘要： Pharmaceutically acceptable, non-immunogenic compositions are formed by covalently binding atelopeptide collagen to pharmaceutically pure, synthetic, hydrophilic polymers via specific types of chemical bonds to provide collagen/polymer conjugates. The atelopeptide collagen can be type I, type II or type III and may be fibrillar or non-fibrillar. The synthetic hydrophilic polymer may be polyethylene glycol and derivatives thereof having a weight average molecular weight over a range of from about 100 to about 20,000. The compositions may include other components such as liquid, pharmaceutically acceptable, carriers to form injectable formulations, and/or biologically active proteins such as growth factors. The collagen-polymer conjugates of the invention generally contain large amounts of water when formed. The conjugates can be dehydrated to form a relatively solid object. The dehydrated, solid object can be ground into particles which can be suspended in a non-aqueous fluid such as an oil and injected into a living being for the purpose of providing soft tissue augmentation. Once in place, the particles rehydrate and expand in size five fold or more.
摘要翻译：药学上可接受的非免疫原性组合物通过经由特定类型的化学键共价结合肽肽胶原与药学纯合成的亲水性聚合物形成，以提供胶原/聚合物共轭物。糖尿病胶原可以是I型，II型或III型，并且可以是纤维状或非纤维状的。合成亲水性聚合物可以是重均分子量在约100至约20,000范围内的聚乙二醇及其衍生物。组合物可以包括其它组分，例如液体，药学上可接受的，载体以形成可注射制剂，和/或生物活性蛋白质例如生长因子。当形成时，本发明的胶原 - 聚合物共轭物通常含有大量的水。可以将共轭物脱水形成相对固体的物体。脱水的固体可以被研磨成可以悬浮在诸如油之类的非水性流体中的颗粒，并注入活体以提供软组织增加。一旦就位，颗粒再水合并扩大五倍以上。

137. 发明授权

US5403292A Thin wall catheter having enhanced torqueability characteristics 失效
标题翻译：具有增强的扭矩特性的薄壁导管
公开(公告)号：US5403292A
公开(公告)日：1995-04-04
申请号：US245428
申请日：1994-05-18
申请人： Byung H. Ju
发明人： Byung H. Ju
IPC分类号： A61L29/00 , A61L29/04 , A61L29/06 , A61L29/18 , A61M25/00 , A61M25/16
CPC分类号： A61M25/0045 , A61L29/049 , A61L29/06 , A61L29/18 , A61M25/005 , A61M2025/0098 , A61M25/0069
摘要： A diagnostic catheter comprises an inner layer of 100 percent polyamide over which is a braided metal wire sleeve and an outer layer formed as a blend of either the polyamide and PEBA along with a suitable radiopaque filler or, alternatively, a blend of PEBA having different durometers. Affixed either directly to the end of the above tubular body or to a stem member secured to that tubular body is a soft-tip formed from a blend of PEBA whose hardness is such that the catheter can be considered as having an atraumatic tip. The resulting catheter exhibits excellent torque and column strength characteristics while providing a relatively large diameter lumen for a given outside diameter.
摘要翻译：诊断导管包括100％聚酰胺的内层，编织的金属线套管和内层由聚酰胺和PEBA与合适的不透射线填料一起混合而形成，或者另外具有不同硬度的PEBA的共混物。直接粘贴到上述管状体的端部或固定到该管状体的杆部件上，是由PEBA的混合物形成的软尖端，其硬度使导管可以被认为具有无创伤的尖端。所得到的导管表现出优异的扭矩和柱强度特性，同时为给定的外径提供相对较大直径的腔。

138. 发明授权

US5383861A Flexible cannula 失效
标题翻译：柔性插管
公开(公告)号：US5383861A
公开(公告)日：1995-01-24
申请号：US135216
申请日：1993-10-12
申请人： Sven Hempel , Thomas Wulf
发明人： Sven Hempel , Thomas Wulf
IPC分类号： A61B1/00 , A61B17/34 , A61L29/06 , A61M39/00 , A61M39/04
CPC分类号： A61B17/3421 , A61L29/06 , A61B17/3498
摘要： A flexible cannula consists of a flexible tube, whose distal zone is introducible into the inside of the body through a trocar puncture point, and a top piece. The top piece is divided into a housing which is flat when seen in the direction of the longitudinal axis of the cannula and which is secured at the proximal end of the tube and contains a closure device and a flexible intermediate tube which, starting from the proximal end wall of the housing, extends along the longitudinal axis of the cannula.
摘要翻译：柔性套管由柔性管组成，其远端区域通过套管针穿刺点可引入身体的内部，以及顶部件。顶部件被分成当沿套管的纵向轴线方向看时平坦的壳体，该外壳固定在管的近端，并且包含封闭装置和柔性中间管，其从近端壳体的端壁沿着插管的纵向轴线延伸。

139. 发明授权

US5360402A Hand-actuated retention catheter 失效
标题翻译：手动保持导管
公开(公告)号：US5360402A
公开(公告)日：1994-11-01
申请号：US827936
申请日：1992-01-29
申请人： Anthony J. Conway , Philip J. Conway , Richard D. Fryar, Jr.
发明人： Anthony J. Conway , Philip J. Conway , Richard D. Fryar, Jr.
IPC分类号： A61F2/958 , A61L29/06 , A61L29/16 , A61M25/00 , B29C41/14 , B29C41/22 , A61M29/00
CPC分类号： A61L29/06 , A61L29/16 , A61M25/0009 , A61M25/0045 , A61M25/10 , A61M25/1018 , A61M25/1029 , A61M25/1036 , B29C41/14 , B29C41/22 , A61L2300/204 , A61L2300/22 , A61L2300/222 , A61L2300/404 , A61L2300/41 , A61L2300/45 , A61L2300/452 , A61L2300/602 , A61M2025/0056 , A61M2025/0062 , A61M2025/1075 , A61M25/0017 , A61M25/1011 , B29C2791/001 , B29K2083/00 , B29K2083/005 , B29L2031/7542
摘要： A hand-actuated retention catheter 5 is disclosed. The retention catheter includes a tube 12, an overcoat layer 14 encircling the tube 12 and a cavity 16 interposed between the tube 12 and the overcoat layer 14. The cavity 16 encircles the tube and includes a bulbous balloon portion 24 and an enlarged fluid reservoir portion 22 interconnected and separated by a catheter sleeve portion 26 which has a narrowed outside diameter. The expandable balloon portion 24 can be expanded by compressing the fluid reservoir portion 22. Methods of making the hand-actuated retention catheter and methods of using the same are also disclosed.
摘要翻译：公开了一种手动保持导管5。保持导管包括管12，围绕管12的外涂层14和插入在管12和外涂层14之间的空腔16.腔16围绕管并且包括球状球囊部分24和扩大的流体储存部分 22由具有变窄的外径的导管套筒部分26互连和分开。还可以通过压缩流体储存部分22来膨胀可膨胀气囊部分24.还公开了制造手动保持导管的方法及其使用方法。

140. 发明授权

US5356591A Tailoring expansion properties of balloons for medical devices 失效
标题翻译：为医疗器械调整气球膨胀性能
公开(公告)号：US5356591A
公开(公告)日：1994-10-18
申请号：US62846
申请日：1993-05-14
申请人： Leonard Pinchuk , Robert S. Shonk , Thomas Trotta
发明人： Leonard Pinchuk , Robert S. Shonk , Thomas Trotta
IPC分类号： A61B17/00 , A61L29/06 , A61M25/00 , A61M29/02 , B29C35/04 , B29C49/18 , B29C49/64 , B29C49/08
CPC分类号： A61L29/06 , A61M25/1029 , A61M25/1034 , A61M25/104 , B29C49/18 , B29C49/6409 , A61B2017/00783 , A61M2025/1086 , A61M29/02 , B29C2049/4605 , B29C2049/4608 , B29C2049/465 , B29C2049/4655 , B29C35/041
摘要： Dilatation balloons are fabricated of a material such as a nylon or a polyamide material, and they have an inflated, non-distended working profile as well as a stretched inflated profile which is achieved by applying pressure through a dilatation catheter or the like that is in excess of that needed to achieve the inflated, non-distended profile and which is adequate to effect dilatation or the like up to a maximum pre-bursting pressure application. The maximum pre-bursting size of the balloon can be tailored depending upon the needs of the particular balloon within a wide range of possible maximum pre-bursting sizes.
摘要翻译：膨胀气球由诸如尼龙或聚酰胺材料的材料制成，并且它们具有膨胀的，不扩张的加工轮廓以及拉伸的膨胀型材，其通过将压力施加在膨胀导管等中而实现，实现膨胀的，不扩张的轮廓所需的足够多的，并且其足以实现扩张等直到最大的预破裂压力应用。可以根据特定气球在可能的最大预爆破尺寸的宽范围内的需要来调整气囊的最大预爆破尺寸。

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