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1. 发明申请

WO2008112364A2 BALLOON TROCAR 审中-公开
标题翻译：巴洛克TROCAR
公开(公告)号：WO2008112364A2
公开(公告)日：2008-09-18
申请号：PCT/US2008/053298
申请日：2008-02-07
申请人： APPLIED MEDICAL RESOURCES CORPORATION , ALBRECHT, Jeremy, J. , AU, Gigi , NGUYEN, Eric , GADBERRY, Donald, L. , BRUSTAD, John, R. , JOHNSON, Gary, M. , HART, Charles, C. , MICHAUD, Michael, L. , BERCERRA, Matthew, M. , PRAVONGVIENGKHAM, Kennii
发明人： ALBRECHT, Jeremy, J. , AU, Gigi , NGUYEN, Eric , GADBERRY, Donald, L. , BRUSTAD, John, R. , JOHNSON, Gary, M. , HART, Charles, C. , MICHAUD, Michael, L. , BERCERRA, Matthew, M. , PRAVONGVIENGKHAM, Kennii
IPC分类号： A61M25/00
CPC分类号： A61B17/3421 , A61B2017/3482 , A61B2017/3486 , A61B2017/3492
摘要： A balloon trocar includes a cannula assembly including a cannula and an outer sleeve fitting over the cannula. The distal end of the outer sleeve is proximal to the distal end of the cannula. A balloon is coupled to a distal portion of the sleeve and a distal portion of the cannula The outer surface of the cannula includes a plurality of longitudinal channels for transmitting gas or fluid to the balloon A bolster having a gel pad at its distal portion is slidably mounted to the cannula assembly and may be locked in a desired position In use, the trocar is inserted into an incision through a body wall and into a body cavity The balloon is inflated and the cannula assembly pulled proximaliy against the incision while the bolster is slid distally to the body wall and locked in place to seal the incision with the compressed balloon
摘要翻译：气球套管针包括插管组件，其包括套管和套管上套管的外套管。外套筒的远端靠近套管的远端。气囊联接到套管的远端部分和套管的远端部分。套管的外表面包括用于将气体或流体传送到球囊的多个纵向通道。在其远端部分具有凝胶垫的枕头可滑动地安装到插管组件并且可以被锁定在期望的位置。在使用中，套针针被插入穿过体壁的切口并进入体腔。气囊被充气，并且插管组件相对于切口被拉近，而垫子滑动远离身体壁并锁定到位以用压缩气囊密封切口

2. 发明申请

WO2007106750A2 BALLOON TROCAR 审中-公开
标题翻译：巴洛克TROCAR
公开(公告)号：WO2007106750A2
公开(公告)日：2007-09-20
申请号：PCT/US2007/063728
申请日：2007-03-09
申请人： APPLIED MEDICAL RESOURCES CORPORATION , ALBRECHT, Jeremy, J. , AU, Gigi , NGUYEN, Eric , GADBERRY, Donald, L. , BRUSTAD, John, R. , HART, Charles, C. , JOHNSON, Gary, M.
发明人： ALBRECHT, Jeremy, J. , AU, Gigi , NGUYEN, Eric , GADBERRY, Donald, L. , BRUSTAD, John, R. , HART, Charles, C. , JOHNSON, Gary, M.
IPC分类号： A61B17/34 , A61B17/00 , A61B17/02
CPC分类号： A61B17/3417 , A61B17/0218 , A61B17/3415 , A61B17/3421 , A61B17/3423 , A61B17/3498 , A61B2017/00477 , A61B2017/00557 , A61B2017/22051 , A61B2017/3419 , A61B2017/3433 , A61B2017/3445 , A61B2017/347 , A61B2017/3486 , A61B2017/3488 , A61B2017/349 , A61J15/0053 , A61M25/04 , A61M39/0247 , A61M39/06 , A61M2039/0261 , A61M2039/0273 , A61M2039/0279 , A61M2039/0294 , A61M2039/062 , A61M2039/0626 , A61M2039/0686
摘要： A balloon trocar includes a cannula assembly including a cannula and an outer sleeve fitting over the cannula The distal end of the outer sleeve is proximal to the distal end of the cannula. A balloon is coupled to a distal portion of the sleeve and a distal portion of the cannula. The outer surface of the cannula includes a plurality of longitudinal channels for transmitting gas or fluid to the balloon. A bolster having a gel pad at its distal portion is slidably mounted to the cannula assembly and may be locked in a desired position. In use, the trocar is inserted into an incision through a body wall and into a body cavity The balloon is inflated and the cannula assembly pulled proximally against the incision while the bolster is slid distally to the body wall and locked in place to seal the incision with the compressed balloon.
摘要翻译：球囊套管针包括套管组件，其包括插管和套管上的外套筒。外套管的远端靠近套管的远端。气囊联接到套管的远端部分和套管的远端部分。套管的外表面包括用于将气体或流体传送到球囊的多个纵向通道。在其远端部分具有凝胶垫的枕头可滑动地安装到套管组件上并且可以锁定在期望的位置。在使用中，套针针通过体壁插入到切口中并进入体腔。气囊膨胀，并且套管组件向近侧拉近抵靠切口，同时将垫片向远侧滑动到体壁并锁定到位以密封切口与压缩气球。

3. 发明申请

WO2003103548A1 WOUND RETRACTOR 审中-公开
标题翻译：绕线器
公开(公告)号：WO2003103548A1
公开(公告)日：2003-12-18
申请号：PCT/US2003/017389
申请日：2003-06-03
申请人： APPLIED MEDICAL RESOURCES CORPORATION , ALBRECHT, Jeremy, J , NGUYEN, Eric , GADBERRY, Donald, L. , JOHNSON, Gary, M. , HART, Charles, C. , BRUSTAD, John, R. , BOWES, Robert, R, II , SAKAKINE, Ghassan , KALE, Henry
发明人： NGUYEN, Eric , GADBERRY, Donald, L. , JOHNSON, Gary, M. , HART, Charles, C. , BRUSTAD, John, R. , BOWES, Robert, R, II , SAKAKINE, Ghassan , KALE, Henry
IPC分类号： A61F13/00
CPC分类号： A61B17/0293 , A61B17/0206 , A61B17/0218 , A61B17/3423 , A61B17/3498 , A61B2017/00889 , A61B2017/00938 , A61B2017/0225 , A61B2017/3419 , A61B2017/3435
摘要： An incrementally adjustable wound retractor (199), having a first ring (102) with a diameter greater than the desired diameter of the wound incision. A second ring (104), having an annular axis and a diameter greater than the desired diameter of the wound incision. A flexible sleeve (106), disposed in a generally cylindrical form between the first and the second rings (012, 104), the second ring may be rolled over itself and around the annular axis to provide a sleeve with a radical retraction force sufficient to stretch the incision to the desired diameter.
摘要翻译：一种增量可调的伤口牵开器（199），具有直径大于伤口切口所需直径的第一环（102）。第二环（104），其具有环形轴线和直径大于所述伤口切口的期望直径。柔性套筒（106）以大致圆柱形的形式设置在第一和第二环（012,104）之间，第二环可以在其自身上并围绕环形轴线滚动以提供具有足够的自由基回缩力的套筒将切口拉伸至所需的直径。

4. 发明申请

WO2007044850A1 WOUND RETRACTOR WITH GEL CAP 审中-公开
标题翻译：带盖帽的回缩器
公开(公告)号：WO2007044850A1
公开(公告)日：2007-04-19
申请号：PCT/US2006/039905
申请日：2006-10-12
申请人： APPLIED MEDICAL RESOURCES CORPORATION , ALBRECHT, Jeremy, J. , HART, Charles, C. , BRUSTAD, John, R. , JOHNSON, Gary, M. , KO, Jennifer, T. , GADBERRY, Donald, L.
发明人： ALBRECHT, Jeremy, J. , HART, Charles, C. , BRUSTAD, John, R. , JOHNSON, Gary, M. , KO, Jennifer, T. , GADBERRY, Donald, L.
IPC分类号： A61B17/34 , A61B17/02
CPC分类号： A61B17/0293 , A61B17/02 , A61B17/0218 , A61B17/3423 , A61B17/3431 , A61B17/3439 , A61B17/3462 , A61B17/3496 , A61B17/3498 , A61B90/40 , A61B2017/00477 , A61B2017/00526 , A61B2017/0225 , A61B2017/0287 , A61B2017/3419 , A61B2017/347 , A61B2050/005 , A61B2050/0051
摘要： An incrementally adjustable wound retractor, which provides access to a body cavity, includes an inner ring having a diameter greater than the desired diameter of the wound incision, an outer ring having an annular axis and a diameter greater than the desired diameter of the wound incision, and a flexible sleeve disposed in a generally cylindrical form between the inner and outer rings. The outer ring includes first and second circular tubes spaced apart axially with each including a lumen having a rigid, noncompliant split hoop positioned therein. The outer ring may be rolled over itself and around the annular axis to retract the sleeve with sufficient force to stretch the incision to the desired diameter. A gel cap seal may be coupled to the outer ring outside of the biological body to seal the opening produced by the wound retractor between the body cavity and outside the body cavity.
摘要翻译：提供进入体腔的增量可调的伤口牵开器包括直径大于伤口切口的期望直径的内环，具有环形轴线的外环和直径大于伤口切口的期望直径的内环以及在内环和外环之间以大致圆柱形的形式设置的柔性套管。外环包括轴向间隔开的第一和第二圆形管，其中每个包括具有定位在其中的刚性的，不一致的分割箍的内腔。外环可以自身滚动并围绕环形轴线以足够的力使套筒缩回以将切口拉伸到期望的直径。凝胶帽密封件可以联接到生物体外部的外环，以密封由卷绕牵开器在体腔和体腔外部产生的开口。

5. 发明申请

WO2007056627A1 TROCARS WITH ADVANCED FIXATION 审中-公开
标题翻译：具有高级固定的TROCARS
公开(公告)号：WO2007056627A1
公开(公告)日：2007-05-18
申请号：PCT/US2006/060212
申请日：2006-10-25
申请人： APPLIED MEDICAL RESOURCES CORPORATION , AU, Gigi , ALBRECHT, Jeremy, J. , HART, Charles, C. , JOHNSON, Gary, M. , BRUSTAD, John, R.
发明人： AU, Gigi , ALBRECHT, Jeremy, J. , HART, Charles, C. , JOHNSON, Gary, M. , BRUSTAD, John, R.
IPC分类号： A61B17/34
CPC分类号： A61B17/34 , A61B17/3421 , A61B2017/3484 , A61B2017/349
摘要： A trocar fixation device includes a cannula and an elongate tube mounted onto and coupled to the exterior surface of the cannula with the distal end of the cannula extending distally beyond the distal end of the elongate tube. The elongate tube includes a plurality of slits cut at an angle to a longitudinal axis of the elongate tube. The trocar fixation device is activated by rotating the proximal-end region of the elongate tube in a first direction and is deactivated by rotating the proximal-end region of the elongate tube in a second direction, opposite to the first direction . Activation of the trocar fixation device compresses the material positioned between adjacent slits and forces the material radially outwardly, away from the exterior surface of the cannula, thereby forming ridges. Deactivation of the trocar fixation device returns the exterior surface of the elongate tube to a substantially smooth condition.
摘要翻译：套管针固定装置包括插管和安装到套管的外表面上并连接到套管的外表面的细长管，套管的远端向远侧延伸超过细长管的远端。细长管包括与细长管的纵向轴线成一定角度切割的多个切口。套管针固定装置通过沿着第一方向旋转细长管的近端区域而被激活，并且通过沿与第一方向相反的第二方向旋转细长管的近端区域来停用。套针针固定装置的激活压缩位于相邻狭缝之间的材料，并迫使材料径向向外，远离插管的外表面，从而形成脊。套针针固定装置的停用将细长管的外表面返回到基本平滑的状态。

6. 发明申请

WO2011011538A3 SURGICAL ACCESS DEVICE COMPRISING INTERNAL RETRACTOR 审中-公开
公开(公告)号：WO2011011538A3
公开(公告)日：2011-01-27
申请号：PCT/US2010/042781
申请日：2010-07-21
申请人： APPLIED MEDICAL RESOURCES CORPORATION , HART, Charles, C. , JOHNSON, Gary, M. , NGUYEN, Eric , PINGLETON, Edward, D. , PRAVONGVIENGKHAM, Kennii , SAKAKINE, Ghassan , WACHLI, Serene , BRUSTAD, John, R. , TRAN, Olivia, J.
发明人： HART, Charles, C. , JOHNSON, Gary, M. , NGUYEN, Eric , PINGLETON, Edward, D. , PRAVONGVIENGKHAM, Kennii , SAKAKINE, Ghassan , WACHLI, Serene , BRUSTAD, John, R. , TRAN, Olivia, J.
IPC分类号： A61B17/02 , A61B17/34
摘要： Devices and systems provide a surgical access device (300) comprising an internal retractor device (370) integrated with or coupled to a body wall (40) or wound retractor (350). The wound retractor (350) retracts an opening in a body wall (40) into a body cavity (42), while the internal retractor (370) permits a user to control the positions of internal structures (30) within the body cavity (42), thereby permitting a user to define a surgical field (70). Embodiments of the internal retractor (370) are adjustable.

7. 发明申请

WO2007109700A2 CANNULA STABILIZATION SEAL 审中-公开
标题翻译：肛门稳定性密封
公开(公告)号：WO2007109700A2
公开(公告)日：2007-09-27
申请号：PCT/US2007/064471
申请日：2007-03-21
申请人： APPLIED MEDICAL RESOURCES CORPORATION , HART, Charles, C. , AU, Gigi , PRAVONGVIENGKHAM, Kennii , ALBRECHT, Jeremy, J.
发明人： HART, Charles, C. , AU, Gigi , PRAVONGVIENGKHAM, Kennii , ALBRECHT, Jeremy, J.
IPC分类号： A61B17/34 , A61B17/00
CPC分类号： A61B17/3421 , A61B2017/00557 , A61B2017/3419 , A61B2017/3482 , A61B2017/3486 , A61B2017/349 , A61B2017/3492
摘要： A stabilization seal is used with existing cannulas for forming a gas-tight seal with tissue in a body wall. The stabilization seal includes a cylindrical inflatable elongate tube having a graduated wall-thickness that is thicker in a central region and thinner in a distal-end region. The tube includes a sealing cuff, having an inflation port, for sealing around a cannula Application of inflation pressure greatly expands the distal-end region while the central region expands slightly. Another embodiment of a stabilization seal includes an inflatable thread that is used with a cannula having a helical channel on its outer surface. An inflatable tube is wound into the channel. A distal end of the tube includes a gas-tight seal and a proximal end of the tube includes an inflation port. In the uninflated condition the nested tube is flush with the channel Inflating the tube enlarges the cannula assembly
摘要翻译：与现有的插管一起使用稳定密封件，用于与体壁中的组织形成气密密封。稳定密封件包括圆柱形可充气细长管，其具有在中心区域较厚并且在远端区域中较薄的刻度壁厚。该管包括具有充气端口的密封箍，用于围绕套管密封。当中心区域稍微膨胀时，充气压力的应用大大地扩展了远端区域。稳定密封件的另一实施例包括可与其外表面上具有螺旋通道的套管一起使用的可充气螺纹。充气管缠绕在通道中。管的远端包括气密密封，并且管的近端包括充气端口。在未膨胀的条件下，嵌套管与通道齐平。充气管扩大插管组件

8. 发明申请

WO2009124097A1 ELECTROSURGICAL SYSTEM 审中-公开
标题翻译：电磁系统
公开(公告)号：WO2009124097A1
公开(公告)日：2009-10-08
申请号：PCT/US2009/039046
申请日：2009-03-31
申请人： APPLIED MEDICAL RESOURCES CORPORATION , FALKENSTEIN, Zoran , CAPPELLO, Christopher, J. , JOHNSON, Gary, M. , GIANNESCHI, Benjamin, A. , TRAN, Oliva, J. , WIXEY, Matthew, A. , PRAVONGVIENGKHAM, Kennii , PRAVONG, Boun , YAWATA, Haruyasu , BRUSTAD, John, R. , COHEN, Adam, J. , HILAL, Nabil , BECERRA, Matthew, M. , PINGLETON, Edward, D. , HILAL, Said, S. , HART, Charles, C. , WIKOFF, Chris, R.
发明人： FALKENSTEIN, Zoran , CAPPELLO, Christopher, J. , JOHNSON, Gary, M. , GIANNESCHI, Benjamin, A. , TRAN, Oliva, J. , WIXEY, Matthew, A. , PRAVONGVIENGKHAM, Kennii , PRAVONG, Boun , YAWATA, Haruyasu , BRUSTAD, John, R. , COHEN, Adam, J. , HILAL, Nabil , BECERRA, Matthew, M. , PINGLETON, Edward, D. , HILAL, Said, S. , HART, Charles, C. , WIKOFF, Chris, R.
IPC分类号： A61B17/285
CPC分类号： A61B18/1445 , A61B17/07207 , A61B18/1206 , A61B18/1442 , A61B18/16 , A61B90/90 , A61B2017/00199 , A61B2017/2945 , A61B2018/00041 , A61B2018/00077 , A61B2018/00178 , A61B2018/00208 , A61B2018/00345 , A61B2018/00404 , A61B2018/00494 , A61B2018/00511 , A61B2018/00589 , A61B2018/00601 , A61B2018/00607 , A61B2018/00619 , A61B2018/00642 , A61B2018/00666 , A61B2018/00702 , A61B2018/00869 , A61B2018/00875 , A61B2018/00892 , A61B2018/00898 , A61B2018/00916 , A61B2018/00922 , A61B2018/00988 , A61B2018/124 , A61B2018/126 , A61B2018/1266 , A61B2018/1412 , A61B2018/1432 , A61B2018/144 , A61B2018/1455 , A61B2018/1467 , A61B2018/162
摘要： Phase end point determination is provided to automatically halt the application of energy to tissue. Prior to the application of energy, the phase end point determination is identified by measuring the product of permittivity and conductivity of the tissue to be treated. An electrosurgical system can include an electrosurgical generator, a feedback circuit or controller, and an electrosurgical tool. The feedback circuit can provide an electrosurgery endpoint by determining the phase end point of a tissue to be treated. The electrosurgical system can include more than one electrosurgical tool for different electrosurgical operations and can include a variety of user interface features and audio/visual performance indicators. The electrosurgical system can also power conventional bipolar electrosurgical tools and direct current surgical appliances.
摘要翻译：提供相位终点确定以自动停止向组织施加能量。在施加能量之前，通过测量待处理组织的介电常数和电导率的乘积来确定相位终点确定。电外科系统可以包括电外科发生器，反馈电路或控制器以及电外科手术工具。反馈电路可以通过确定待治疗的组织的相位终点来提供电外科终点。电外科系统可以包括多个用于不同电外科手术的电外科工具，并且可以包括各种用户界面特征和音频/视觉性能指标。电外科系统还可以为传统的双极电外科手术工具和直流手术器械提供电力。

9. 发明申请

WO2008128186A1 METHOD AND APPARATUS FOR TISSUE MORCELLATION 审中-公开
标题翻译：用于组织移植的方法和装置
公开(公告)号：WO2008128186A1
公开(公告)日：2008-10-23
申请号：PCT/US2008/060243
申请日：2008-04-14
申请人： APPLIED MEDICAL RESOURCES CORPORATION , PRAVONG, Boun , PRAVONGVIENGKHAM, Kennii , BECERRA, Matthew, M. , WIXEY, Matthew, A. , YAWATA, Haruyasu , JOHNSON, Gary, M. , FALKENSTEIN, Zoran , BRUSTAD, John, R. , HART, Charles, C.
发明人： PRAVONG, Boun , PRAVONGVIENGKHAM, Kennii , BECERRA, Matthew, M. , WIXEY, Matthew, A. , YAWATA, Haruyasu , JOHNSON, Gary, M. , FALKENSTEIN, Zoran , BRUSTAD, John, R. , HART, Charles, C.
IPC分类号： A61B17/32 , A61B17/14
CPC分类号： A61B17/32002 , A61B17/29 , A61B17/32053 , A61B90/361 , A61B2017/00902 , A61B2017/2948 , A61B2017/320024 , A61B2017/320775
摘要： The invention relates to a tissue morcellator for minimally invasive surgery. The morcellator has a metallic cutting ring mounted on a visually transparent hollow cylinder, which in combination with a visually transparent outer morcellator tube enables a surgeon to visualize the inside of the morcellator shaft for detection of loose tissue fragments in the device, A tenaculum used with the morceilation device has a spacer for preventing contact with the blade. The cutting tube can oscillate, rather than rotate, along the longitudinal axis of the cutting tube. The morcellator utilizes an extendable tissue guide on the outer tube of the morcellator shaft for preventing the tissue from rotating along the longitudinal axis of the morcellator tube. This allows the tissue to be continuously rotated into the morcellator device for continuous peel. The tissue guide can also be fully retracted to allow for coring of the bulk tissue.
摘要翻译：本发明涉及用于微创手术的组织移植器。旋转器具有安装在视觉上透明的中空圆柱体上的金属切割环，其与视觉上透明的外部致动器管组合，使得外科医生能够将morcellator轴的内部可视化，以检测装置中的松散的组织碎片。该光泽装置具有用于防止与叶片接触的间隔件。切割管可以沿着切割管的纵向轴线而摆动而不是旋转。 morcellator在morcellator轴的外管上使用可延伸的组织引导件，用于防止组织沿着morcellator管的纵向轴线旋转。这允许组织连续地旋转到morcellator装置中用于连续剥离。组织引导件也可以完全缩回以允许大块组织的取芯。

10. 发明申请

WO2005072806A2 MEDICAL TUBING HAVING VARIABLE CHARACTERISTICS AND METHOD OF MAKING SAME 审中-公开
标题翻译：具有可变特性的医疗管道及其制造方法
公开(公告)号：WO2005072806A2
公开(公告)日：2005-08-11
申请号：PCT/US2005/001129
申请日：2005-01-12
申请人： APPLIED MEDICAL RESOURCES CORPORATION , BRUSTAD, John, R. , HILAL, Said, S. , HILAL, Nabil , HART, Charles, C. , JOHNSON, Gary, M. , HILAL, Serene , SAKAKINE, Ghassan , GADBERRY, Donald, L. , PINGLETON, Edward, D. , PETRIME, Matthew, N. , ADLPARVAR, Payam , HADLEY, Carl, B. , VU, Kenneth, K.
发明人： BRUSTAD, John, R. , HILAL, Said, S. , HILAL, Nabil , HART, Charles, C. , JOHNSON, Gary, M. , HILAL, Serene , SAKAKINE, Ghassan , GADBERRY, Donald, L. , PINGLETON, Edward, D. , PETRIME, Matthew, N. , ADLPARVAR, Payam , HADLEY, Carl, B. , VU, Kenneth, K.
IPC分类号： A61M25/00
CPC分类号： A61M25/0012 , A61B1/0011 , A61B1/0055 , A61B17/3421 , A61B2017/003 , A61M25/0043
摘要： The invention primarily is directed to a medical tubing adapted for insertion into a body tissue or cavity and method of manufacturing different variations of the tubing along a length of the tubing. The tubing comprises a plurality of individual, discrete, generally ring-shaped elements arranged in series and fused or bonded together forming a continuous tubular structure. The ring-shaped elements may be formed of a thermoplastic or a thermoset material. The ring-shaped elements may include plastic rings, metallic rings, un-reinforced plastic rings and/or metal reinforced plastic rings assembled along the length of the tubular structure to provide variable flexibility and kink-resistance. The tubular structure may have a cross-section of any geometric shape and it may be bent, twisted or curved without kinking. The ring-shaped elements may have different flexural modulus. The ring-shaped elements may include a combination of flexible and rigid ring-shaped elements assembled along different portions or sections of the tubular structure. The ring-shaped elements may be metallic and may be bonded with a resilient, flexible elastomeric adhesive, wherein the ring-shaped elements may have different lengths and may be fused closer or further apart to one another depending on the characteristics of a portion or section of the tubing. In another aspect of the invention, the medical tubing may further comprise a secondary lumen and a pull wire to control the tubular structure. The ring-shaped elements may be truncated to provide a bending bias. In another aspect of the invention, the ring-shaped elements may vary in diameter and/or composition in different portions or sections of the tubular structure. In yet another aspect of the invention, some of the ring-shaped elements may be radiopaque, or the ring-shaped elements may comprise of different colors to operate as indicators along the tubular structure.
摘要翻译：本发明主要针对适于插入身体组织或空腔的医用管道以及沿管道长度制造管道的不同变化的方法。管道包括多个独立的，分立的，大致环形的元件，其串联布置并且熔合或粘合在一起，形成连续的管状结构。环形元件可以由热塑性材料或热固性材料形成。环形元件可以包括沿着管状结构的长度组装的塑料环，金属环，未增强塑料环和/或金属增强塑料环，以提供可变的柔性和抗扭结性。管状结构可以具有任何几何形状的横截面，并且其可以弯曲，扭曲或弯曲而没有扭结。环形元件可以具有不同的弯曲模量。环形元件可以包括沿着管状结构的不同部分或部分组装的柔性和刚性环形元件的组合。环形元件可以是金属的并且可以用弹性的柔性弹性体粘合剂粘合，其中环形元件可以具有不同的长度，并且可以根据部分或部分的特性彼此靠近或更远地彼此熔合的管道。在本发明的另一方面，医疗管道还可包括用于控制管状结构的次管腔和拉线。环形元件可以被截断以提供弯曲偏压。在本发明的另一方面，环形元件可以在管状结构的不同部分或部分中的直径和/或组成变化。在本发明的另一方面，一些环形元件可以是不透射线的，或者环形元件可以包括不同的颜色以作为沿着管状结构的指示器。

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