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1. 发明申请

WO2005030293A2 ANTI-INVERSION TROCAR SEAL 审中-公开
标题翻译：防反射密封
公开(公告)号：WO2005030293A2
公开(公告)日：2005-04-07
申请号：PCT/US2004/031485
申请日：2004-09-23
申请人： APPLIED MEDICAL RESOURCES CORPORATION , HART, Charles, C. , KAHLE, Henry , TAYLOR, Scott, V.
发明人： HART, Charles, C. , KAHLE, Henry , TAYLOR, Scott, V.
IPC分类号： A61M
CPC分类号： A61B17/3498 , A61B17/3462 , A61B2017/3464
摘要： The invention is directed to a trocar seal adapted to form a seal around a surgical instrument, the trocar seal comprising a housing having an axis extending between a proximal end and a distal end and forming a working channel sized and configured to receive the surgical instrument; an elastomeric septum seal having a proximal face and a distal face, the septum seal being disposed in the housing and extending transverse to the axis of the housing across the working channel; portions of the septum seal defining a hole having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel the septum seal forms a seal with the instrument; and at least one structure formed integrally with or proximate to the septum seal to prevent inversion of the septum seal upon withdrawal of the surgical instrument. The septum seal or the housing may further comprise a sidewall to include the structure extending from the sidewall to the distal face of the seal to tether the seal distally. The structure may be integrally formed with the proximal face of the septum seal to reinforce the seal, or the structure may be integrally formed with the distal face of the septum seal to tether the seal distally. The structure may be an annular reinforcement or rib, and is formed so as to allow side-to-side movement or floatation of the seal. The trocar seal may further comprise a plurality of radially extending ribs formed on the proximal or distal face of the septum seal to reinforce the seal. The trocar seal may further comprise a tensile element formed on the distal face of the septum seal.
摘要翻译：本发明涉及适于在外科器械周围形成密封的套针针密封件，套管针密封件包括具有在近端和远端之间延伸的轴线的壳体，并形成尺寸和构造成接收外科器械的工作通道; 具有近端面和远侧面的弹性体隔膜密封件，所述隔膜密封件设置在所述壳体中并横跨所述工作通道横向于所述壳体的轴线延伸; 隔膜密封件的部分限定了直径小于或等于外科器械直径的孔，使得在沿着工作通道插入仪器期间，隔垫密封件与仪器形成密封; 以及与隔膜密封件一体地或靠近隔膜密封件形成的至少一个结构，以防止外科器械撤回时隔垫密封件反转。隔膜密封件或壳体还可以包括侧壁，以包括从密封件的侧壁延伸到远端面的结构，以将密封件向远侧系绳。该结构可以与隔膜密封件的近侧面一体地形成，以加强密封，或者结构可以与隔膜密封件的远侧面一体地形成，从而将密封件向远侧系绳。该结构可以是环形加强件或肋，并且形成为允许密封件的侧面移动或浮动。套针针密封件还可以包括形成在隔膜密封件的近侧或远侧面上的多个径向延伸的肋条，以加强密封。套针针密封件还可以包括形成在隔膜密封件的远侧面上的拉伸元件。

2. 发明申请

WO2004075741A2 WOUND RETRACTOR FOR USE IN HAND ASSISTED LAPAROSCOPIC SURGERY 审中-公开
标题翻译：伤口牵引器用于手部辅助腹腔镜手术
公开(公告)号：WO2004075741A2
公开(公告)日：2004-09-10
申请号：PCT/US2004/005487
申请日：2004-02-25
申请人： APPLIED MEDICAL RESOURCES CORPORATION , PINGLETON, Edward, D. , BRUSTAD, John , EWERS, Richard , HILAL, Nabil , ADLPARVAR, Payam , TAYLOR, Scott, V. , DULAK, Gary, R. , DUNN, Michael, J. , MORALES, Norman, L. , HART, Charles, C. , BOWES, Robert, R., II
发明人： PINGLETON, Edward, D. , BRUSTAD, John , EWERS, Richard , HILAL, Nabil , ADLPARVAR, Payam , TAYLOR, Scott, V. , DULAK, Gary, R. , DUNN, Michael, J. , MORALES, Norman, L. , HART, Charles, C. , BOWES, Robert, R., II
IPC分类号： A61B1/32
CPC分类号： A61B17/3423 , A61B17/0293 , A61B17/3431 , A61B90/50 , A61B2017/00557 , A61B2017/0084 , A61B2017/00867 , A61B2017/3407 , A61B2017/3441 , A61B2017/3486 , A61B2017/3492
摘要： A surgical retractor (10) is adapted for use in opening an incision (12) in a body wall (14) to facilitate access into a body cavity. The retractor includes an interior anchor (16) that is disposed interiorly of the body wall and an exterior tensioning device (56) that is disposed exteriorly of the body wall. At least one tension element (21) is coupled to the interior anchor and adapted to pass through the incision to engage the exterior tensioning device. Engaging elements (59, 62) are provided on the exterior tensioning device to engage the tension element and to maintain a tensile force on the tension element as it passes through the incision. Multiple concentric rings can also be used to maintain a tensile force on the tension element.
摘要翻译：手术牵开器（10）适于用于打开体壁（14）中的切口（12）以便于进入体腔。牵开器包括布置在体壁内部的内锚（16）和布置在体壁外部的外部张紧装置（56）。至少一个张紧元件（21）联接到内部锚固件并适于穿过切口以接合外部张紧装置。接合元件（59,62）设置在外部张紧装置上以接合张紧元件并且在张紧元件穿过切口时保持张紧元件上的张力。也可以使用多个同心环来保持拉力元件上的张力。

3. 发明申请

WO2004073487A2 SURGICAL CLIP AND METHOD FOR MAKING SAME 审中-公开
标题翻译：外科剪辑及其制作方法
公开(公告)号：WO2004073487A2
公开(公告)日：2004-09-02
申请号：PCT/US2004/002862
申请日：2004-02-02
申请人： APPLIED MEDICAL RESOURCES CORPORATION , HART, Charles, C. , KAHLE, Henry , SAKAKINE, Ghassan
发明人： HART, Charles, C. , KAHLE, Henry , SAKAKINE, Ghassan
IPC分类号： A61B
CPC分类号： A61B17/08 , A61B17/083 , A61B17/1227 , A61B2017/00946 , A61B2017/1103 , A61B2017/1107 , A61B2017/1135
摘要： An improved clip or clamp is provided having a one-piece wire-form construction that is suited for rapid and repeatable manufacture. The clamp, which may be disposable or reusable, includes a first jaw portion, a second jaw portion, a first handle portion, a second handle portion and a central coil or tensioning device, all of which are formed from a single piece of wire. The central coil or tensioning device comprises one or more turns. The handle portions may include ring-shaped distal ends that further enhance grip. The jaw portions may be shaped, curved, bent or otherwise configured to provide access to specific areas of a procedure. The clamp may be coated with a material providing improved traction and padding. In a method of the invention, a single wire is wound at least one turn forming the central coil and two extensions. A first extension of the wire is formed into the first jaw portion by bending back on itself, the first extension is then returned to the central coil where it is formed to rest upon an outer surface of the central coil. The bent first extension, which now extends rearward in a direction opposite to the direction of the first jaw portion, is then bent again forming the first handle portion. A second extension is similarly bent to form the second jaw portion and the second handle portion. The singlewire construction of the clamp may be achieved through programmed wire forming. In another aspect of the invention, a plurality of clamps may be placed upon a traction rod made from a metal or plastic material to align two or more stump portions of a severed vessel or tissue for reconnection or anastomosis.
摘要翻译：提供了一种改进的夹子或夹具，其具有适合于快速和可重复制造的一体式线形结构。可以是一次性的或可重复使用的夹具包括第一钳口部分，第二钳口部分，第一手柄部分，第二手柄部分和中心线圈或张紧装置，它们都由单片线形成。中心线圈或张紧装置包括一个或多个匝。手柄部分可以包括进一步增强抓地力的环形远端。钳口部分可以成形，弯曲，弯曲或以其他方式构造成提供对程序的特定区域的访问。夹具可以涂覆有提供改进的牵引和填充的材料。在本发明的方法中，单线缠绕形成中心线圈和两个延伸部的至少一圈。电线的第一延伸部通过自身弯曲而形成为第一钳口部分，然后将第一延伸部返回到中心线圈，在中心线圈处，其被安置在中心线圈的外表面上。然后弯曲的第一延伸部现在在与第一钳口部分的方向相反的方向上向后延伸，然后再次弯曲形成第一手柄部分。类似地，第二延伸部弯曲以形成第二钳口部分和第二手柄部分。夹具的单线结构可以通过编程的线形成来实现。在本发明的另一方面，多个夹具可以放置在由金属或塑料材料制成的牵引杆上，以对准切断的血管或组织的两个或多个残端部分用于重新连接或吻合。

4. 发明申请

WO2005123169A1 STEERABLE VASCULAR SHEATH 审中-公开
标题翻译：可行的血管
公开(公告)号：WO2005123169A1
公开(公告)日：2005-12-29
申请号：PCT/US2005/021262
申请日：2005-06-14
申请人： APPLIED MEDICAL RESOURCES CORPORATION , DEMARCHI, Thomas , SAKAKINE, Ghassan , BRUSTAD, John, R. , GADBERRY, Donald, L. , KAHLE, Henry , HART, Charles, C. , HILAL, Nabil
发明人： DEMARCHI, Thomas , SAKAKINE, Ghassan , BRUSTAD, John, R. , GADBERRY, Donald, L. , KAHLE, Henry , HART, Charles, C. , HILAL, Nabil
IPC分类号： A61M25/01
CPC分类号： A61M25/0147 , A61M25/005 , A61M25/0051 , A61M25/0053 , A61M25/0054 , A61M25/0136 , A61M25/0138 , A61M25/0662
摘要： A vascular steerage access device is provided having an elongate body (81) and a steerable portion. The access sheath (80) has an outside diameter sufficiently small so that it may be inserted into a vessel and a sufficient length to extend through a patient's circulatory system. The access sheath may have two internal lumen, a first lumen sized and configured as an access to a surgical site and a second lumen sized and configured to contain a tensioning device (86) that, when acted upon, will deflect the steerable portion. The tensioning device may be directly or remotely attached to an actuation device that operates to control the tensioning and loosening of the tensioning device.
摘要翻译：提供了一种具有细长主体（81）和可转向部分的血管导管进入装置。进入护套（80）具有足够小的外径，使得其可以插入容器中并具有足够的长度以延伸通过患者的循环系统。进入护套可以具有两个内腔，第一内腔的尺寸和构造为进入外科手术部位，并且构造成第二内腔，其尺寸和构造成容纳张紧装置（86），所述张紧装置当被作用时将使可转向部分偏转。张紧装置可以直接或远程地附接到操作以控制张紧装置的张紧和松动的致动装置。

5. 发明申请

WO2007044911A1 METHOD OF MAKING A HAND ACCESS LAPAROSCOPIC DEVICE 审中-公开
标题翻译：制造手部光学装置的方法
公开(公告)号：WO2007044911A1
公开(公告)日：2007-04-19
申请号：PCT/US2006/040154
申请日：2006-10-12
申请人： APPLIED MEDICAL RESOURCES CORPORATION , BRUSTAD, John, R. , ALBRECHT, Jeremy, J. , HILAL, Nabil , JOHNSON, Gary, M. , HART, Charles, C.
发明人： BRUSTAD, John, R. , ALBRECHT, Jeremy, J. , HILAL, Nabil , JOHNSON, Gary, M. , HART, Charles, C.
IPC分类号： B29C39/18 , B29C39/42 , A61B17/34
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： The invention relates to a hand access laparoscopy device having a gelcap, a retainer, a sleeve and a retention ring. The gelcap includes gel that is bonded to a cap. The cap includes an inner cylindrical wall to which the gel in bonded, thereby providing a sealing area between the device and the wound in a body wall. By securing the gel to the inner cylindrical wall, the thickness of the gel and corresponding cap is minimized along with the overall footprint of the device. With the gel thickness reduced and able to be substantially flush, the "doming" phenomenon produced by insufflation of a patient's abdomen is reduced.
摘要翻译：本发明涉及一种具有凝胶帽，保持器，套筒和保持环的手动腹腔镜装置。凝胶帽包括粘合到盖子上的凝胶。盖包括内部圆柱形壁，凝胶粘合到该内部圆柱形壁上，从而在装置和身体壁上的伤口之间提供密封区域。通过将凝胶固定到内圆柱形壁上，凝胶和相应的盖的厚度与装置的总体尺寸一起被最小化。随着凝胶厚度降低并且能够基本上齐平，通过吹入患者腹部产生的“隆起”现象减少。

6. 发明申请

WO2005046430A2 SUTURE SECURING DEVICE AND METHOD 审中-公开
标题翻译：防静电装置和方法
公开(公告)号：WO2005046430A2
公开(公告)日：2005-05-26
申请号：PCT/US2004/035420
申请日：2004-10-26
申请人： APPLIED MEDICAL RESOURCES CORPORATION , WIXEY, Matthew, A. , HART, Charles, C. , ADLPARVAR, Payam
发明人： WIXEY, Matthew, A. , HART, Charles, C. , ADLPARVAR, Payam
IPC分类号： A61B
CPC分类号： A61B17/0487 , A61B2017/045 , A61B2017/0488
摘要： The invention is directed to a device and method for securing a passed surgical suture in a manner similar to a tied knot. The suture securing device comprises a male piece having a top portion, a center shaft having one end connected to the top portion, and an end member having a capturing feature connected to another end of the center shaft; and a female piece having a top end and a bottom end comprising a column being generally cylindrical in shape and forming a hollow opening along its length, wherein the opening slidingly receives the center shaft and a suture to be captured and held by the capturing feature, the suture being secured in place between the column and the center shaft. The assembled male and female pieces are irreversibly interlocked and form a lightly compressed, convoluted or tortuous pathway. The capturing feature is formed to engage and obliquely capture the suture from different angles. The radii of the male and female pieces are preferably greater than the radius of the suture. The securing device may further comprise a link formed between the male and female pieces. The link may be a tether formed when the male and female pieces are formed. The link may be severed and removed after placement and assembling of the male and female pieces. In another aspect of the invention, a method for applying a suture securing device is disclosed comprising the steps of: (1) providing the suture securing device of the invention; (2) aligning the male piece and the female piece at a desired location for applying the suture securing device; and (3) pressing the center shaft of the male piece into the opening of the female piece. The method may further comprise the step of applying a compressive load on the male piece to dislodge an enlargement from an undercut of the female piece and to place the male piece and the female piece in a condition where they may be advanced to a desired position along the suture.
摘要翻译：本发明涉及一种用于以类似于束缚结的方式固定通过的手术缝合线的装置和方法。所述缝合线固定装置包括：阳件，其具有顶部，中心轴的一端连接到所述顶部;以及端部构件，其具有连接到所述中心轴的另一端的捕获特征; 以及具有顶端和底端的阴件，其包括通常为圆柱形的柱，并且沿着其长度形成中空的开口，其中所述开口滑动地容纳所述中心轴和缝合线以被所述捕获特征捕获和保持，缝合线被固定在柱和中心轴之间的适当位置。组合的阳性和阴性片段是不可逆地互锁的并且形成轻微压缩，褶皱或曲折的路径。捕获特征被形成为从不同的角度接合并倾斜地捕获缝合线。男性和女性片的半径优选大于缝合线的半径。固定装置还可以包括形成在阳件和阴件之间的连杆。连接件可以是当形成阳件和阴件时形成的系绳。在插入和组装男性和女性部件之后，链接可能被切断和移除。在本发明的另一方面，公开了一种施加缝合线固定装置的方法，包括以下步骤：（1）提供本发明的缝线固定装置; （2）将所述阳件和所述阴件对准在用于施加所述缝合线固定装置的期望位置处; 和（3）将阳件的中心轴压入阴件的开口中。该方法还可以包括以下步骤：将压缩载荷施加到阳片上以从阴片的底切移除放大图，并将阳片和阴片放置在可以前进到期望位置的状态缝合线

7. 发明申请

WO2005042646A2 SURFACE TREATMENTS AND MODIFICATIONS USING NANOSTRUCTURE MATERIALS 审中-公开
标题翻译：表面处理和使用纳米结构材料的改性
公开(公告)号：WO2005042646A2
公开(公告)日：2005-05-12
申请号：PCT/US2004/036166
申请日：2004-10-29
申请人： APPLIED MEDICAL RESOURCES CORPORATION , BRUSTAD, John, R. , HILAL, Nabil , JOHNSON, Gary, M. , HART, Charles, C.
发明人： BRUSTAD, John, R. , HILAL, Nabil , JOHNSON, Gary, M. , HART, Charles, C.
IPC分类号： C09D
CPC分类号： A61B17/064 , A61B17/02 , A61B17/06166 , A61B17/122 , A61B2017/00345 , A61B2017/00858 , A61F2002/0086 , A61L27/30 , A61L31/082 , A61L2400/12 , A61L2400/18
摘要： The invention is directed to nanostructure surface treatments, coatings or modifications formed from nanoscale building blocks. The nanostructure surface treatments, modifications or coatings have hydrophobic, hydrophilic and surface adherence properties. The nanoscale building blocks Nave orientation, geometry, packing density and composition that may be adjusted to control the unique surface characteristics of the desired treatment, coating or modification. Applications of this nanostructure technology include surgical clips, staples, retractors, sutures and manipulators where an improvement in traction, retention or occlusion is desired without excessive material or tissue deformation or where high compressive forces would be undesirable, dangerous or ineffective. In one aspect, a nanostructure surface treatment for a medical device having an external surface is disclosed wherein the treatment is applied on the external surface to provide a hydrophobic or a hydrophilic surface. With this aspect, the treatment comprises titanium dioxide and provides nanoscopic structures having nearly vertical sidewalls. The treated surface of the device has contact angles greater than or equal to 150 degrees. The vertical sidewalls provide a negative capillary effect and Nave a width of about 200 nm. The vertical sidewalls attach to a wet surface by the negative capillary effect. The van der Waals forces of the vertical sidewalls enable the treated surface to attach to a dry surface. The treatment may be vapor deposited and cured on the device, or the treatment may be laser blasted on the device.
摘要翻译：本发明涉及纳米结构表面处理，由纳米级构建块形成的涂层或改性。纳米结构表面处理，改性或涂层具有疏水性，亲水性和表面附着性。纳米尺度构件可以调节以调节所需处理，涂层或改性的独特表面特性，以确定方向，几何形状，包装密度和组成。该纳米结构技术的应用包括手术夹，钉，牵开器，缝合线和操纵器，其中希望改善牵引力，保持力或闭塞，而不会产生过多的材料或组织变形，或者高压缩力是不希望的，危险的或无效的。一方面，公开了一种具有外表面的医疗装置的纳米结构表面处理，其中将处理施加在外表面上以提供疏水或亲水表面。在这方面，处理包括二氧化钛并提供具有近似垂直侧壁的纳米结构。该设备的被处理表面具有大于或等于150度的接触角。垂直侧壁提供负毛细管效应，并具有约200nm的宽度。垂直侧壁通过负毛细管效应附着在潮湿的表面上。垂直侧壁的范德华力使得经处理的表面附着在干燥的表面上。处理可以在装置上气相沉积和固化，或者可以在装置上激光喷射处理。

8. 发明申请

WO2003068046A3 TISSUE FUSION/WELDER APPARATUS CORPORATION 审中-公开
公开(公告)号：WO2003068046A3
公开(公告)日：2003-08-21
申请号：PCT/US2003/001586
申请日：2003-01-16
申请人： APPLIED MEDICAL RESOURCES CORPORATION , BRUSTAD, John, R. , HART, Charles, C. , JOHNSON, Gary, M. , HILAL, Said, S. , PINGLETON, Edward, D.
发明人： HART, Charles, C. , JOHNSON, Gary, M. , HILAL, Said, S. , PINGLETON, Edward, D.
IPC分类号： A61B17/08
摘要： A tissue welding apparatus is adapted to fuse a first piece of tissue to a second piece of tissue which are disposed in a surface proximate relationship. An elongate shaft carries a first jaw, and a second opposing jaw moveable relative to the first jaw. At least one penetrating member is carried by the first jaw and moveable relative to the second jaw to create a channel through the first piece of material and the second piece of material. A source of heat is coupled to the penetrating member for denaturing the tissue defining the channel. This denatured tissue forms a column binding the first piece of tissue to the second piece of tissue. A chemical agent can be carried to the tissue with the penetrating member.

9. 发明申请

WO2002091930A1 TRACTION TROCAR APPARATUS AND METHOD 审中-公开
标题翻译： TRACTION TROCAR设备和方法
公开(公告)号：WO2002091930A1
公开(公告)日：2002-11-21
申请号：PCT/US2001/015390
申请日：2001-05-11
申请人： APPLIED MEDICAL RESOURCES CORPORATION , HART, Charles, C. , PINGLETON, Edward, D. , BRUSTAD, John, R. , HILAL, Nabil , PINEDJIAN, Raffi, S.
发明人： HART, Charles, C. , PINGLETON, Edward, D. , BRUSTAD, John, R. , HILAL, Nabil , PINEDJIAN, Raffi, S.
IPC分类号： A61B17/34
CPC分类号： A61B17/34 , A61B17/3417 , A61B17/3421 , A61B17/3431 , A61B17/3476 , A61B17/3496 , A61B2017/32006 , A61B2017/3454 , A61B2090/08021
摘要： The trocar system includes a cannula insertable through a body wall using an obturator having a distal tip. A traction tread disposed interiorly of the obturator inverts at the distal tip and extends proximally along the outer surface of the obturator or cannula. At the distal tip the tread can facilitate parting rather than cutting the tissue. Along the outer surface, the tread can engage the tissue to pull it proximally along the advancing obturator. This produces counter forces which can result in a net proximal force facilitating distention of the abdominal wall and separation of the abdominal wall from internal organs. The traction tread can be axially and/or radially continuous. An associated method of operation includes the steps of contacting the body wall with the traction tread at the distal tip, and engaging the body wall with the traction tread along wall portions facing the outer surface.
摘要翻译：套管针系统包括可使用具有远端尖端的闭孔器通过体壁插入的套管。设置在封闭器内部的牵引踏板在远端顶端反转，并沿闭塞器或插管的外表面向近侧延伸。在远端，胎面可以促进分离而不是切割组织。沿着外表面，胎面可以接合组织以沿着前进的闭孔向近侧拉。这产生反作用力，其可导致净近端力促进腹壁的膨胀和腹壁与内脏的分离。牵引踏板可以是轴向和/或径向连续的。相关联的操作方法包括以下步骤：使身体壁与远侧末端处的牵引踏板相接触，并且沿着面向外表面的壁部分与身体壁与牵引踏板接合。

10. 发明申请

WO2012151276A2 LOW-PROFILE SURGICAL UNIVERSAL ACCESS PORT 审中-公开
标题翻译：低型外科手术通用口
公开(公告)号：WO2012151276A2
公开(公告)日：2012-11-08
申请号：PCT/US2012/036119
申请日：2012-05-02
申请人： APPLIED MEDICAL RESOURCES CORPORATION , HART, Charles, C.
发明人： HART, Charles, C.
IPC分类号： A61B17/34
CPC分类号： A61B17/3498 , A61B17/3421 , A61B17/3462
摘要： A surgical access device includes an elongate cannula having a side wall at the proximal end that is coaxial with and movable relative to a seal-housing. A seal assembly that includes at least one seal is disposed within the seal-housing. An inflation port is formed in on the seal housing and configured to align with an opening in the side wall at the proximal end of the cannula. The seal housing is movable relative to the side wall between an open and closed configuration. In an open configuration, the inflation port is aligned with the opening in the side wall permitting fluid to flow across the cannula side wall. In a closed configuration, the inflation fort is offset from the opening in the side wall preventing fluid flow across the cannula side wall. In one variation, a resilient retention member is disposed inside the seal housing to bias the seal.
摘要翻译：外科进入装置包括细长插管，该套管具有在近端处的侧壁，其与密封壳体同轴并且可相对于密封壳体移动。包括至少一个密封件的密封组件设置在密封壳体内。充气端口形成在密封壳体上并且构造成与套管近端处的侧壁中的开口对准。密封壳体可以在打开和关闭构型之间相对于侧壁移动。在打开构造中，充气口与侧壁中的开口对准，允许流体流过套管侧壁。在闭合构型中，充气堡垒偏离侧壁中的开口，防止流体流过套管侧壁。在一个变型中，弹性保持构件设置在密封壳体的内部以偏置密封。

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