|Número de publicación||CN101584907 B|
|Tipo de publicación||Concesión|
|Número de solicitud||CN 200910203856|
|Fecha de publicación||12 Sep 2012|
|Fecha de presentación||20 May 2009|
|Fecha de prioridad||20 May 2008|
|También publicado como||CN101584907A|
|Número de publicación||200910203856.8, CN 101584907 B, CN 101584907B, CN 200910203856, CN-B-101584907, CN101584907 B, CN101584907B, CN200910203856, CN200910203856.8|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (3), Otras citas (1), Clasificaciones (4), Eventos legales (5)|
|Enlaces externos: SIPO, Espacenet|
导管用把手 Catheter with handle
技术领域 Technical Field
 本发明涉及导管用把手，更详细地涉及可微调整操作部的操作力的导管用把手。  The present invention relates to a catheter handle, more particularly to micro-adjust the operating force operating portion of catheter handle. 背景技术 Background
 作为医疗用导管，提出了各种导管的方案。  as a medical catheter, various conduit programs. 在导管的近位端侧通常设有导管用把手。 At the proximal side of the catheter has a catheter usually handle. 导管用把手根据导管的种类提出了各种方案。 The catheter according to the type of catheter handle various proposals.
 例如存在操作导管用把手的操作部，想使导管的远位端部时而弯曲时而拉伸的情况。  The catheter handle operations such as the presence of the operating unit, want to make the distal end of the catheter sometimes bowing sometimes stretching.
 作为在这种情况使用的导管用把手，例如下述的专利文献I所示，提出了在长筒中装入驱动部件的活塞构造的把手的方案。  As used in this case, a catheter with a handle, for example, the following Patent Document I, the proposed program handles mounted drive unit in the shaft of the piston structure. 在该现有的把手中，通过使活塞相对缸体沿轴方向移动，可以使导管的远位端部时而弯曲时而延伸。 In the hands of the existing, by the piston relative to the cylinder axial direction, you can make the distal end of the catheter sometimes extends sometimes bent.
 根据导管的使用方法，存在将导管的远位端插入患者的体内、欲保持导管的远位端原样弯曲着的形状的情况。  A method of using a catheter, and the presence of the distal end of the catheter inserted into the patient's body, the distal end of the catheter as they want to maintain the bent shape of the case. 在这样的情况下，相对导管用把手需要对操作部的轴向移动进行制动。 In such a case, the need to grip the catheter relative axial movement of the brake operating unit. 因此，提出了在活塞外周和缸体内周之间安装0形环等环状弹性部件，利用螺纹拧入部件的螺纹拧入量，调整环状弹性部件的紧固力，使导管用把手的操作部沿轴向可以在任意的位置制动的构造的方案。 Therefore, proposed in the outer periphery of the piston between the cylinder and an annular elastic member mounting circumferential 0-ring, the use of threaded member is screwed into the volume, adjusting the fastening force of the annular elastic member, so that the handle of the catheter program operation portion in the axial direction of the brake can be constructed at an arbitrary position.
，但是，在现有的把手中，为提高制动性能，若要增强环状弹性部件的紧固力，则存在对把手的操作部的移动操作从最初变重，操作困难的课题。  However, in the conventional hands, in order to improve the braking performance, to enhance the tightening force of the annular elastic member, there is a move operation on the operation handle portion from the initial weight becomes difficult task operation . 另外，若要提高操作性，则存在环状弹性部件的紧固力下降，制动性能下降的课题，难以微调整紧固强度。 Further, to improve the operability, the annular elastic member fastening force drops, the braking performance degradation problem exists, it is difficult to adjust the micro fastening strength.
 另外，现有的把手在将环状弹性部件的紧固强度设定成适度值以后，存在由于弹性部件的弹性导致紧固强度时效改变的风险。  In addition, conventional grip strength after fastening the annular elastic member is set to an appropriate value, there is a risk due to the elasticity of the elastic member causes the fastening strength of the aging change. 为了防止时效改变，也考虑了用粘接剂固定螺纹拧入部件的螺纹拧入位置，但在该情况下，此后，不能微调节环状弹性部件的紧固强度。 In order to prevent aging changes, it is also contemplated using an adhesive fixing screw screwed into a threaded member screwed into position, but in this case, then, the fastening strength can not be micro-adjusted annular elastic member.
[专利文献I]日本特开2003-319915号公报发明内容  [Patent Document I] JP 2003-319915 DISCLOSURE OF THE INVENTION
 发明要解决的课题  The invention Problems to be solved
 本发明是鉴于这样的实际情况提出的，目的在于提供一种导管用把手，其在任意的轴方向位置都可以使操作部容易地止动，而且能微调整操作部的操作力，一旦设定紧固力后,紧固力的时效改变少。  The present invention has been made in view of such actual situation, and aims to provide a catheter with a handle, which can make the operation portion at an arbitrary axial position of the stopper easily, but also the fine adjustment operation force of the operation unit, Once set tightening force tightening force less aging change.
 解决课题的手段  Solution to Problem
 为了达到所述目的，本发明所涉及的导管用把手包括：  In order to achieve the above object, the present invention relates to a catheter handle comprising:
 把手本体；  The grip body;
 具有沿轴向移动自由地被安装在所述把手本体的轴孔中的中轴部分的操作部；  having a central axis portion of the operation portion to move freely in the axial direction is mounted in the axial bore of the grip body;
 位于所述中轴部分的外周，沿轴向移动自由、围绕轴芯转动地螺纹结合在所述把手本体的远位端的前端罩； 在所述把手本体的远位端和所述前端罩的远位端之间，位于该前端罩的内周和所述中轴部分的外周之间，根据所述前端罩相对所述把手本体的轴向的螺纹结合位置，改变对所述中轴部分的外周面的紧固力的环状弹性部件；  located at the outer peripheral portion of the central axis, to move freely in the axial direction around the spool core rotatably screwed in the distal end of the handle body's distal end cap;  at the distal end of the handle body and between the distal end of said front cover, and between the periphery of the central axis of the distal end portion is positioned within the periphery of the cover, the front cover according to the relative axial position of the handle is screwed into the body, changes to the the central axis of said annular portion of the elastic member outer peripheral surface of the tightening force;
 安装在所述前端罩和所述把手本体之间，根据所述前端罩相对所述把手本体的围绕轴芯的转动螺距角度赋予棘轮感的棘轮感赋予机构。  mounted between the cover and the front end of the handle body, imparting a sense of the ratchet mechanism of the ratchet imparting a sense about the axis of rotation according to the pitch angle of the distal end of the cover relative to the handle body.
 优选为，所述棘轮感赋予机构具有：固定在所述前端罩的内周、在其内周形成与所述转动螺距角度对应的周方向凹凸的棘轮用环；在所述把手本体的外周、沿该把手本体的外周方向、按所述转动螺距角度的复数倍的间隔形成、与所述棘轮用环的周方向凹凸啮合的棘轮用凸部。  Preferably, imparting a sense of the ratchet mechanism has: the front end fixed to the inner periphery of the cover, is formed in the circumferential direction of the inner circumference of the rotation angle corresponding to the pitch of the uneven with ratchet ring; in the grip body the outer periphery along the outer circumferential direction of the grip body, according to the rotation angle of pitch intervals plural times, the ratchet and the ratchet ring with a circumferential direction of the convex portion of the concavo-convex engagement.
 优选为，所述棘轮用凸部在所述把手本体的外周沿周方向形成三个或更多个。  Preferably, the projecting portion is formed with a ratchet three or more in the circumferential direction of the outer periphery of the grip body.
 或者，所述棘轮感赋予机构也可以具有：在所述把手本体的外周中、形成与所述转动螺距角度对应的凹凸的周方向凹凸部；固定在所述罩的内周，在其内周沿周方向、按所述转动螺距角度的复数倍的间隔形成与所述周方向凹凸部啮合的棘轮用凸部的棘轮用环。  Alternatively, the ratchet mechanism being given may have: in the outer periphery of the grip body, are formed in the circumferential direction of the convex portion of the concavo-convex pitch angle corresponding to the rotation; fixed to the inner periphery of the cover, in along the circumferential direction of the inner periphery, according to the rotation angle of pitch intervals plural times with the ratchet portion of the circumferential direction of the concave and convex engagement with the convex portion with the ratchet ring. [0021 ] 在该情况下，优选为，所述棘轮用凸部在所述棘轮用环的内周，沿周方向形成三个或更多个。  In this case, preferably, the ratchet projections with the inner periphery of the ring, is formed along the circumferential direction of three or more in the ratchet.
 优选为，导管管件的近位端固定在所述操作部的远位端，在所述操作部的中轴部分的外周面上形成向远位端方向外径变小的锥面，所述环状弹性部件的内周面与所述锥面的外周面接触并沿轴向能够移动地构成。  Preferably, the proximal end of the catheter tube fixed to the distal end portion of the operation, in the outer peripheral surface of the axial portion of the operating portion having an outer diameter smaller cone to the distal end direction, The annular elastic member in contact with the inner peripheral surface of the tapered outer circumferential surface and can be constructed movably in the axial direction.
 发明效果  Effect of the Invention
 在本发明所涉及的导管用把手中，在把手本体的外周螺纹结合前端罩，通过调节其螺纹拧入深度，可以调整环状弹性部件对中轴部分的外周面的紧固力。  In the present invention relates to a catheter with their hands, in the outer periphery of the grip body screwed the front cover, by adjusting the screw-in depth, you can adjust the fastening force of the annular elastic member axis portion of the outer peripheral surface. 而且，此时，棘轮感赋予机构根据前端罩相对把手本体的围绕轴芯的转动螺距角度赋予棘轮感。 Further, at this time, the ratchet wheel ratchet sense imparting mechanism being opposite the distal end cover according to the grip body is rotated around the axis of the pitch angle.
 因此，可以适当保证环状弹性部件的紧固力，在任意的轴向位置都能够容易止动操作部。  Thus, the tightening force can be appropriately guaranteed annular elastic member, in any axial position can easily operate the stopper portion. 另外，可以再调整相对把手本体的前端罩的螺纹拧入深度，按规定数的转动螺距角度使前端罩的螺纹拧入停止，能微调整操作部的操作力。 In addition, you can then adjust the relative grip body of the front cover of the screw-in depth, pitch angle by rotating a predetermined number of the tip cap is screwed stop, can micro-adjust the operating portion of the operating force. 另外，一旦设定环状弹性部件的紧固力以后，由于通过棘轮感赋予机构限制前端罩相对把手本体的转动，所以紧固力的时效改变少。 Further, once the annular elastic fastening force setting member, since the rotation imparting mechanism limits distal end of the cover relative to the grip body via ratchet sense, so the fastening force less aging change.
附图说明 Brief Description
 图I是本发明的一实施方式所涉及的导管的整体立体图。  Figure I is an overall perspective view of an embodiment of the present invention. FIG catheter.
 图2是图I所示的导管用把手的主要部分的剖视图。  FIG. 2 is a sectional view of a main part of the catheter handle I shown in FIG.
 图3是进一步表示图2的主要部分的剖视图。  FIG. 3 is a further cross-sectional view showing a main part of FIG. 2.
 图4是沿图3所示的IV-IV线的横剖视图。  FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3.
 图5是本发明的另一实施方式所涉及的导管用把手的与图4对应的横剖视图。  FIG. 5 is a cross-sectional view of the catheter corresponding to another embodiment of the present invention with the handle in Fig. 4.
 图6是本发明的又一实施方式所涉及的导管用把手的与图4对应的横剖视图。  FIG. 6 is a cross-sectional view of the catheter corresponding to still another embodiment of the present invention with the handle in Fig. 4.
 符号说明  Symbol Description
 2...前端可偏向操作导管4...导管管件20...导管用把手22...操作用按钮24...把手本体28...中轴部分30...操作用丝线40...锥面42. . . 0形环50...棘轮用环52、52a...周方向凹凸54、54a...棘轮用凸部、具体实施方式  2 ... the tip deflectable catheter tube operating conduit 4 ... 20 ... 22 ... catheter manipulation handle buttons handle body 28 ... 24 ... 30 ... operation axis part 40 ... with a tapered thread 42... 0-ring 50 with the ratchet ring ... 52,52a ... 54,54a ... uneven circumferential direction ratchet projections, specific embodiments
 下面，根据附图所示的实施方式说明本发明。  Next, according to the embodiment shown in the drawings illustrate the invention.
 如图I所示，本发明的一实施方式所涉及的前端可偏向操作导管2，例如用于心率不齐的诊断或治疗，在导管管件（管部件）4的远位端部安装有前端片10和多个中间环12。  Figure I shows, the front end of an embodiment of the present invention may be biased operating conduit 2, e.g., for the diagnosis or treatment of arrhythmias, the catheter tube (pipe member) of the distal end of the mounting portion 4 There are a plurality of front sheet 10 and the intermediate ring 12. 前端片10及中间环12，作为电极发挥功能，例如通过用粘接剂的粘接等相对导管管件4连接固定。 The front sheet 10 and the intermediate ring 12 functions as an electrode, for example, by connecting adhesive 4 and other relatively Catheter Tubing adhesive fixed.
 在导管管件4的近位端安装有把手本体20。  In the proximal end of the catheter tube 4 is mounted grip body 20. 在导管管件4及把手本体20的内部分别拉通导线，导线的前端与构成电极的前端片10及中间环12电连接。 Inside the catheter tube 4 and pull the handle body 20 respectively through wires 10 and intermediate the front and the front sheet having a ring electrode 12 is electrically connected to the wire. 另外，这些导线的基端与固定在图2所示的把手本体20的后端部的连接器21进行连接。 Further, the base end of the wires are fixed in the grip body 2 shown in FIG. 20, the rear end portion of the connector 21 are connected. 另外，在把手本体20上安装用于进行导管管件4的远位端部的偏向移动操作（摆头操作）的操作按钮22。 In addition, the fitted for biased movement operation (swing operation) of the operation buttons distal end portion of the catheter tube member 4 of 22 in the handle body 20.
 导管管件4由中空的管部件构成，也可以由沿着轴向特性相同的管件构成，优选为，具有弯曲性比较好的远位端部分和相对远位端部分在轴向一体形成、比远位端部分比较具有刚性的近位端部分。  The conduit pipe 4 is composed of a hollow tubular member may be formed of the same characteristics along the axial direction of the tube member, preferably, has a relatively good bending the distal end portion and an opposite distal end portions in the axial direction are formed integrally than the distal end portion having a relatively rigid proximal end portion. 另外，在图I中，虽然导管管件4的长度图示较短，但实际上，t匕把手本体20的轴向长度长数倍〜数十倍左右。 In addition, in FIG. I, although the length of the catheter tube 4 illustrated short, but in fact, t dagger handle 20 of the axial length of the body length of about several to several dozen times.
 导管管件4例如由聚烯烃、聚酰胺、聚醚聚酰胺、聚氨酯等合成树脂构成。  Catheter Tubing 4 for example, a polyolefin, a polyamide, a polyether polyamide, polyurethane and other synthetic resins. 导管管件4的外径一般为0. 6〜3mm的程度,其内径为0. 5〜2. 5mm的程度。 The outer diameter of the catheter tube 4 is generally 0. 6~3mm degree, the extent of an inner diameter of 0. 5~2. 5mm in. 与构成图I所不的电极的前端片10及中间环12连接的导线分别绝缘通过导管管件4的轴向管腔。 And front sheet I do not constitute the electrode pattern 10 and the wire connecting the intermediate ring 12 are insulated by an axial lumen catheter tube 4.
 图I所示的前端片10及中间环12，例如由铝、铜、不锈钢、金、钼金等导电性好的金属构成。  Figure I shown in the front sheet 10 and intermediate ring 12, for example made of aluminum, copper, stainless steel, gold, molybdenum, gold and other metals of good electrical conductivity. 另外，为了具有对X射线良好的造影性，这些前端片10及中间环12由白金等构成是优选的。 Further, in order to have a good X-ray contrast properties, the front sheet 10 and the intermediate ring 12 made of platinum or the like are preferable. 前端片10及中间环12的外径虽然没有特别限定，但与导管管件4的外径同等程度是优选的，通常为0. 5〜3_的程度。 Front sheet 10 and the outer diameter of the intermediate ring 12 is not particularly limited, but the outer diameter of the catheter tube 4 is preferably the same extent, usually the extent of 0.5 5~3_.
 在导管管件4的远位端附近的内部收容着摆头部件。  In the vicinity of the distal end of the inner catheter tube member 4 accommodating the swing member. 作为摆头部件不特别限定，例如由板簧等构成。 A swing member is not particularly limited, for example, a leaf spring. 在作为该摆头部件的板簧上，连接固定如图2〜图4所示的操作用丝线30的远位端。 As part of the swing in the leaf spring is connected and fixed operation as shown in Figure 2 ~ 4 with the distal end of the wire 30.
 操作用丝线30的外径虽然没有特别限定，但优选为0. 01〜0. 3mm,更优选为  The outer diameter of the operation wire 30 is not particularly limited, but is preferably 0. 01~0. 3mm, more preferably
0. 03〜0. 08mm。 0. 03~0. 08mm. 该操作用丝线30例如由Ni-Ti系超弹性合金构成,但不必由金属构成。 This operation is for example, a 30 is made with silk Ni-Ti-based super-elastic alloy, but not necessarily made of metal. 操作用丝线30例如也可以由高强度的非导电性丝线等构成。 Operations such as may be formed of a high strength non-conductive yarns 30, etc. with silk.
 操作用丝线30的近位端，在本实施方式中，调整操作用丝线30的张力后，如图2所示，固定在丝线张力调整器32上。 After the  operating with the proximal end 30 of the thread, in the present embodiment, by adjusting operation of the thread tension 30, shown in Figure 2, is fixed on the thread tension regulator 32. 丝线张力调整器32在轴向移动自由地安装在把手20的把手本体24的内部。 Thread tension adjuster 32 is free to move axially mounted inside the handle body 24 of the handle 20. 通过将该丝线张力调整器32固定在把手本体24内部规定的轴向位置上，可以调整操作用丝线30的张力。 Through the thread tension regulator 32 is fixed to the grip body 24 a predetermined axial position on the inside, with a thread tension adjusting operation may be 30.
 如图2所示，导管管件4的近位端，通过套管26固定在操作用按钮22及中轴部分28上。 , the proximal end of the catheter tube 4 shown in Figure 2, the sleeve 26 is fixed by the operation with the button 22 and the axial portion 28. 操作用按钮22及中轴部分28与操作部对应。 Corresponding to the operation portion 28 with the central axis 22 and the operation section button. 中轴部分28插入形成于把手本体24内部的轴孔25的内部，相对把手本体24成轴向移动自由状态。 Inner shaft hole 25 formed in the axial portion 28 is inserted inside the handle body 24 relative to the axial movement of the grip body 24 in a free state.
 操作者用单手抓住把手本体24，用该单手的手指操作操作用按钮22，使中轴部分28相对把手本体24沿轴向可移动操作。  The operator Grasp the handle with one hand body 24, with a finger of one hand with the operation of the button 22, so that the central axis relative to the handle portion 28 of the body 24 axially movable operating. 因为中轴部分28连接固定在导管管件4的近位端，所以当使中轴部分28相对把手本体24沿轴向移动时，导管管件4的近位端相对操作用丝线30在轴向上相对移动。 Because the axis connecting portion 28 is fixed to the proximal end of the catheter tube member 4, so when the central axis of the handle portion 28 relative axial movement of the body 24, the proximal end of the catheter tube member 4 with respect to the operation thread 30 in the axial direction relative Mobile. 另外，操作用丝线30的前端固定在设于导管管件4的远位端附近的摆头部件上，操作用丝线30的近位端固定在固定于把手20的丝线张力调整器32上。 In addition, operating with the front end of the wire 30 is fixed is provided on the distal end of the catheter tube near the swing member 4, operating with 30 of the proximal end of the wire is fixed to the handle 20 fixed thread tension adjuster 32.
 当使中轴部分28向远位端侧移动时，则在操作用丝线30的近位端保持固定在丝线张力调整器32上的状态下，导管管件4的近位端向远位端侧相对移动。  When the axial portion 28 is moved to the distal end side, in operation with silk proximal end 30 remains fixed on the wire tensioning device 32 of the state, the proximal end of the catheter tube 4 to the distal end side relative movement. 在这种情况下，通过该中轴部分28的操作，对操作用丝线30施加张力，对导管管件4在轴向施加压缩力。 In this case, by operation of the axial portion 28, tension is applied by the operating wire 30, the catheter tube 4 for applying a compressive force in the axial direction. 另外，由于操作用丝线30及导管管件4轴向的长度几乎不变，所以导管管件4及操作用丝线30将会弯曲。 In addition, since the operation 30 4 axial length of thread and the catheter tube is almost constant, so the catheter tube 4 and the operation will bend with silk 30. 其结果，如图I所示，导管管件4的远位端部，如箭头A所示进行摆头偏向动作。 As a result, as shown in Figure I, the distal end of the catheter tube 4, as performed swing biased action arrow A in Fig.
 S卩，导管2的远位端通过沿轴向X操作图I所示的把手20的操作用按钮22，从而能够偏向A方向曲折移动。  S Jie, the distal end of the catheter 2 by operating in the axial direction X operating handle 20 as shown in Figure I with button 22, which can bias A meandering direction. 另外，若使把手本体20围绕轴转动，则在插入体腔内的状态下，可以自由设定相对导管2的A方向的方向。 Further, when the grip body 20 is rotated about the shaft, the body cavity in the inserted state, can be freely set the direction A relative to the conduit 2 in a direction.
 在本实施方式，如图2所示，在中轴部分28的外周面上形成锥面40。  In the present embodiment, as shown in Figure 2, the outer peripheral surface of the axial portion 28 of the tapered surface 40 is formed. 锥面40是越往把手本体24的远位端侧外径越变小的锥面。 Cone 40 is more to handle the change of the body 24 of the distal end side of the small diameter cone. 优选锥面40轴向的长度与操作用按钮22相对把手本体24在轴向可相对移动的范围的长度相等或更长。 Preferably the axial length of the tapered surface 40 and 24 operate relatively movable in the axial direction length range equal to or more buttons 22 relative to the grip body with. 具体地说，锥面40轴向的长度，优选为5〜20mm。 In particular, the axial length of the tapered surface 40, preferably 5~20mm. 锥面40的锥倾斜角度相对轴芯优选为0. I〜2. 0度的角度。 Cone tilt angle relative to the axis of the tapered surface 40 is preferably at an angle of 0. I~2. 0 degrees.
 锥面40的最大外径是比图2所示的轴孔25的内径小或相等的尺寸，以决定操作用筒体28可沿轴向X在轴孔25的内部移动。 Maximum outer diameter  The tapered surface 40 is the inner diameter of the shaft hole 25 as shown in a small or equal size than FIG. 2, to determine the operating cylinder 28 can be used to move in the X axial hole 25 of the inner shaft. 操作用筒体28轴向的长度比锥面40的轴向长度优选长40〜80mm。 Operating cylinder 28 with an axial length longer than the axial length of the tapered surface 40 is preferably 40~80mm.
 在把手本体24的远位端24a的外周形成阳螺纹部51，在前端罩44的内周形成阴螺纹部52。  In the grip body 24 of the distal outer peripheral male threaded portion 24a formed on the end 51, the inner periphery of the distal end cover 44 in the female threaded portion 52 is formed. 阳螺纹部51和阴螺纹部52螺纹结合。 Male threaded portion 51 and the female threaded portion 52 is screwed. 前端罩44的远位端44a的内径比形成有阴螺纹部52的前端罩44的内周的内径小。 The distal end cover 44 distal end 44a of an inner diameter smaller than the inner diameter of the inner periphery formed with a female threaded portion 52 of the distal end cover 44. 在把手本体24的远位端24a和前端罩44的远位端44a之间，在阴螺纹部52的内周和中轴部分28的外周之间形成0形环槽46。 In the grip body distal end 24 of the front cover 24a and the distal end 44 between 44a, between the inner periphery of the female thread portion 52 and the outer periphery of the axial portion 28 is formed an O-ring groove 46.
 在0形环槽46中安装着作为环状弹性部件的0形环42、在其轴向的两侧安装着垫圈41及43。  In an O-ring groove 46 is mounted as a ring-shaped elastic member is an O-ring 42 in the axial direction is mounted on both sides of the washer 41 and 43. 通过将把手本体24的阳螺纹部51拧入前端罩44的阴螺纹部52，调节0形环槽46的轴向长度，0形环42沿轴向变形，0形环42相对中轴部分28的锥面40的紧固力改变。 By the male thread portion 51 of the grip body 24 is screwed into the front end of the female threaded portion 44 of the cover 52, adjust the axial length of the O-ring groove 46, O-ring 42 along the axial deformation, 42 relative to the central axis O-ring portion 28 The tapered surface 40 of the fastening force change.
 0形环42，例如由硅橡胶、丁腈橡胶、氟橡胶等橡胶或合成树脂等构成。  0-ring 42, for example, a silicone rubber, nitrile rubber, fluorine rubber, synthetic resin, rubber or the like. 垫圈41、43例如由氟树脂、金属等构成是优选的。 Washers 41, 43 for example, a fluorine resin, metal or the like are preferable.
 图3是表示图2的主要部分的剖视图。  FIG. 3 is a sectional view of a main portion of FIG. 2 FIG. 如该图3所示，在靠近前端罩44的近位端的圆筒部分44b的内周上，利用螺纹结合方式固定棘轮用环50。 As shown in Figure 3, near the proximal end of the distal end cover 44 of the inner periphery of the cylindrical portion 44b on the use of screwed with fixed ratchet ring 50. 即，如图3所示，棘轮用环50是具有与圆筒部分44b的内径大致相同外径的环状的部件，在其外周部分形成能与设在圆筒部分44b的内周的阴螺纹结合的阳螺纹。 That is, as shown in FIG. 3, with the ratchet ring 50 having an annular inner diameter of the cylindrical portion 44b of the outer diameter substantially the same components, with the cylindrical portion 44b provided in the inner periphery of the female screw is formed in an outer peripheral portion combined with male threads. 另外，棘轮用环50也可以用螺纹结合方式以外的手段在前端罩44的内周面上实现一体化。 Further, the ratchet means can also be used in conjunction with a threaded ring 50 in a manner other than the inner circumferential surface of the distal end cover 44 of the integration. 例如，棘轮用环50可以粘接在前端罩44的内周面上，或者通过注射成形一体成形。 For example, the ratchet with ring 50 may be bonded to the front cover of the inner circumferential surface 44, or integrally formed by injection molding.
 如图4所示，在棘轮用环50的内周面上形成与转动螺距角度0对应的周方向凹凸52。  As shown in Figure 4, the inner peripheral surface of the ratchet ring 50 is formed with the circumferential direction of the rotation angle of 0 corresponds to the pitch of the irregularities 52. 周方向凹凸52的转动螺距角度0是相邻的凹凸52的凸部和凸部之间或者凹部和凹部之间的围绕轴芯的角度，优选为5〜10度。 Circumferential direction 52 of the rotation unevenness pitch angle 0 is the angle around the axis between the convex portion and the convex portion 52 of the adjacent convex or concave portion and the concave portion, and preferably 5 to 10 degrees.
 另外，在位于该环50的内周侧的把手本体24的外周面上，与周方向凹凸52啮合的棘轮用凸部54沿周方向按转动螺距角度0的复数倍的间隔形成。  Further, the outer circumferential surface located on the inner circumferential side of the ring 50 of the grip body 24, with the circumferential direction of the concavo-convex engaging projection 52 of the ratchet portion 54 is formed along the circumferential direction of the pitch angle is rotated by plural times 0 interval. 在图4所示的实施方式中，沿把手本体24的外周面在周方向按90度的间隔在把手本体24的外周面一体成形四个棘轮用凸部54。 In the embodiment shown in FIG. 4, along the outer circumferential surface of the grip body 24 in the circumferential direction by 90 degrees apart on the outer circumferential surface of the grip body 24 is integrally formed with four projecting portion 54 of the ratchet. 棘轮用环50和棘轮用凸部54相当于棘轮感赋予机构。 Ratchet ratchet with ring 50 and convex portion 54 is equivalent to giving a sense of the ratchet mechanism.
 接着，对本实施方式所涉及的前端可偏向操作导管2的使用方法进行说明。  Next, the front end of this embodiment of deflectable catheters operation method will be described. 操作者用单手抓住把手本体24，用该单手的手指操作操作用按钮22，如图2所示，将操作用按钮22从前端罩44的远位端向拉离方向操作。 Operator Grasp the handle with one hand body 24, with the fingers of one hand operating the operation with the button 22, shown in Figure 2, the manipulation button 22 from the distal end of the distal end cover 44 to pull away from the direction of the operation. 在该情况下，因为中轴部分28连接固定在导管管件4的近位端，所以导管管件4相对操作用丝线30沿轴向相对移动。 In this case, since the axial portion 28 is connected and fixed at the proximal end of the catheter tube 4, so that the catheter tube 4 with respect to the operation wire 30 is relatively moved in the axial direction. 其结果，如图I所示，导管管件4的远位端部从直线状态如箭头A所示变成弯曲状态。 As a result, as shown in Figure I, the distal end of the catheter tube member 4 from the linear state as shown by arrow A into a bent state.
 而且在本实施方式中，通过中轴部分28相对把手本体24向远位端方向移动，0形环42相对该中轴部分28从锥面40的外径小的一侧向大的一侧沿轴向相对移动。  Further, in this embodiment, the distal end 24 to the direction of movement relative to the handle portion 28 through the central axis of the body, an O-ring 42 with respect to the axis of the small diameter portion 28 from one side to the large cone 40 axial relative movement along one side. 即，在这种情况下，与该移动相应，使0形环42向圆周方向扩大的方向的力增加。 That is, in this case, corresponding to the mobile, so that 0-ring to expand in the circumferential direction of the force direction 42 increases. 另外，由于环形槽46的内径不变，所以与该移动对应，中轴部分28和0形环槽46的间隔变窄，0形环42推压中轴部分28及前端罩44的力加强，0形环42和中轴部分28的摩擦力增加。 In addition, since the inner diameter of the annular groove 46 of the same, so the move corresponds to the axial portion 28 and the interval 0-ring groove 46 is narrowed, O-ring force 42 pushes the front end of the axial portion 28 and cover 44 to strengthen, O-ring 42 and bottom portion 28 of friction increases.
 另外，在使中轴部分28相对把手本体24向最近位端方向移动时，0形环42相对中轴部分28相对地位于锥面40的外径最小的位置。  Further, when the axial portion 28 of the grip body 24 is moved relative to the direction of the nearest end position, the O-ring portion 28 relative to the central axis 42 relative to the position of the tapered surface 40 at the minimum outer diameter. 因此，在这种情况下，因为中轴部分28和0形环槽46的间隔最宽，所以0形环42推压中轴部分28及前端罩44的力最小，0形环42和中轴部分28的摩擦力降低。 Thus, in this case, since the axial portion 28 and 0-ring groove 46 spaced widest, so O-ring axial force urging portion 42 and distal end 28 of the cover 44 minimum, O-ring 42 and the central axis friction portion 28 is reduced. 因此，在使操作用按钮22相对把手本体24向离开轴向的方向移动的移动初期，操作用按钮22由很轻的力沿轴向移动。 Accordingly, when the manipulation button 22 to move relative to the handle body 24 to the initial direction away from the axial movement of the operation button 22 with a very light force by the axial movement.
 另外，即使让手指离开操作用按钮22，由于0形环42与外径大的锥面40接触，因此由于其摩擦力，操作用按钮22不在轴向移动。  In addition, even if you keep your finger off the operation button 22, due to the O-ring 42 outer diameter of the tapered surface 40 in contact with, so because of its friction, manipulation button 22 is not axially movable. 因此，即使让手指离开操作用按钮22，如图I所示的导管管件4的远位端部也可以保持弯曲的状态。 Therefore, even if you keep your finger off the operation button 22, as shown in the distal end of the catheter tube 4 is shown I can be kept bent.
 为了使图I所示的导管管件4的远位端部为笔直的状态，逆着锥面40和0形环42的摩擦力，只要使操作用按钮22轴向移动就可以。  In order to make the diagram I distal end of the catheter tube 4 is shown as straight state against the tapered surface 40 and the O-ring 42 of friction, as long as the operator with the button 22 can move axially. 此时，0形环42从锥面40的大的外径部分向小的外径部分移动，所以锥面40和0形环42的摩擦力逐渐变小。 At this time, O-ring 42 from the large outer diameter portion of the tapered surface 40 to move the small outer diameter portion, the tapered surface 40 and so the O-ring 42 of the friction force becomes gradually smaller.
 在本实施方式所涉及的导管用把手20中，将前端罩44螺纹结合在把手本体24的外周上，通过调节其螺纹拧入深度，可以调整0形环42对中轴部分28的外周锥面40的紧固力。  In the present embodiment the handle 20 of the catheter, the distal end cover 44 is screwed in the grip body 24 on the outer periphery, by adjusting the screw-in depth can be adjusted O-ring 42 of the centering section 28 taper outer surface 40 of the fastening force. 而且，此时，通过作为棘轮感赋予机构的棘轮用凸部54和周方向凹凸52的啮合，根据前端罩44相对把手本体24的围绕轴芯的转动螺距角度0赋予棘轮感（咯嗒声和感觉）。 And, this time, the engaging bump 52 by a ratchet mechanism of ratchet imparting a sense of protrusion 54 and the circumferential direction, 0 to the ratchet sense (snapping sound according to the front cover 44 relative to the grip body is rotated around the axis of the core 24 and the pitch angle feeling). 因此，作业者可以对每一转动螺距角度微调整前端罩44的螺纹拧入深度。 Thus, the operator can rotate the pitch angle of each micro-adjust the front cover screw 44 screwed into the depth. 即，作业者可以根据棘轮感的数目微调整0形环42的紧固力。 That is, the operator can finely adjust an O-ring fastening force 42 depending on the number of ratchet sense.
 因此，可以适当保证0形环42的紧固力，在任意轴向位置能够使操作用按钮22容易地止动。  Therefore, it is appropriate to ensure that an O-ring fastening force of 42, in any axial position allows the operator to use the stop button 22 easily. 另外，可以再调整相对把手本体24的前端罩44的螺纹拧入深度，能够按规定数的转动螺距角度9停止前端罩44的螺纹拧入，能够微调整0形环42的紧固力，即微调整操作用按钮22的操作力。 In addition, you can then adjust the relative grip body end cover 24 of the thread 44 of the screw-in depth can be rotated by a predetermined number of pitch angle 9 to stop the front cover 44 is screwed, can finely adjust the fastening force of O-ring 42, that is, the fine adjustment operation force with the button 22. 另外，一旦0形环42的紧固力设定以后，由于通过棘轮用凸部54和周方向凹凸52的啮合，限制相对把手本体24的前端罩44的转动，所以对0形环42的锥面40的紧固力的时效改变少。 Further, once the O-ring 42 of the fastening force setting, since the ratchet 52 engages with convex protrusions 54 and circumferential directions, limiting the relative rotation of the grip body distal end 44 of the cover 24, so the O-ring 42 of the cone The surface 40 of the fastening force less aging change.
 另外，本发明不限于上述的实施方式，可以进行各种改变。  Further, the present invention is not limited to the above embodiments, various changes can be made. 例如，在上述的实施方式中，如图4所示，在把手本体24的外周沿周方向等间隔形成四个棘轮用凸部54，但也可以如图5所示，沿周方向等间隔或不等间隔形成三个或者其它数量的棘轮用凸部54。 For example, in the above-described embodiment, shown in Figure 4, the outer periphery of the grip body 24 at equal intervals along the circumferential direction of the four convex portions 54 are formed by a ratchet, but may be 5, or along the circumferential direction at equal intervals unequal intervals of three or other number of convex portion 54 of the ratchet. 但是沿周方向在把手本体24的外周面上等间隔形成三个或更多的棘轮用凸部54是优选的。 However, along the circumferential direction on the outer circumferential surface of the grip body 24, etc. are formed of three or more spaced ratchet projections 54 are preferred. 形成三个或更多的棘轮用凸部54时，可以减轻相对把手本体24的中轴部分28 (操作部）的晃动（向与轴向垂直的方向的晃动）。 Forming three or more projections 54 with the ratchet portion, it can be reduced relative to the central axis of the grip portion 28 of the body 24 (the operation portion) of the rock (the direction perpendicular to the axial shaking).
 或如图6所示，在把手本体24的外周面上，与图4所示的转动螺距角度0对应地形成周方向凹凸52a，在棘轮用环50的内周面上，也可以沿周方向按转动螺距角度的复数倍的间隔形成与周方向凹凸52a啮合的棘轮用凸部54a。  or, as shown, on the outer circumferential surface of the grip body 24, and the pitch angle of the rotation as shown in FIG. 4 0 6 formed corresponding to the circumferential direction irregularities 52a, the inner peripheral surface of the ratchet ring 50 to be circumferential direction by an angle of rotation of plural times the pitch interval in the circumferential direction is formed with the ratchet 52a engages with the convex protrusions 54a. 棘轮用环50和棘轮用凸部54相当于棘轮感赋予机构。 Ratchet ratchet with ring 50 and convex portion 54 is equivalent to giving a sense of the ratchet mechanism.  进而，本发明所涉及的导管用把手，不限于图示的实施方式的前端可偏向操作导管，也可以适用于其他的导管。  Furthermore, the present invention relates to a catheter with a handle, the front is not limited to the illustrated embodiment of the catheter may be biased operation can also be applied to other catheters.
|Patente citada||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|CN101132827A||1 Mar 2006||27 Feb 2008||导管治疗有限公司||A catheter handle and a catheter assembly including such a handle|
|US6602242||15 Feb 2000||5 Ago 2003||Biosense Webster, Inc.||Irrigated tip catheter|
|US6795721||25 Mar 2002||21 Sep 2004||Biosense Webster, Inc.||Bidirectional catheter having mapping assembly|
|25 Nov 2009||C06||Publication|
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