CN1824339B - Medical implement - Google Patents

Medical implement Download PDF

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Publication number
CN1824339B
CN1824339B CN 200610008611 CN200610008611A CN1824339B CN 1824339 B CN1824339 B CN 1824339B CN 200610008611 CN200610008611 CN 200610008611 CN 200610008611 A CN200610008611 A CN 200610008611A CN 1824339 B CN1824339 B CN 1824339B
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CN
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catheter
tube
needle
puncturing
body
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CN 200610008611
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Chinese (zh)
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CN1824339A (en )
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松波秀明
池田昌夫
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住友电木株式会社
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Abstract

The invention is aimed to provide a medical implement capable of variably keeping a certain length in a puncturing needle to be projected, and securely projecting the puncturing needle from the top of even a curved catheter. This medical implement comprises an inner tube catheter 11 with the puncturing needle 1 attached to the top, an outer tube catheter 12 which houses at least a part of the inner tube catheter 11, allowing it to move back and forth therein, a cylindrical body 2 fixed on the rear end of the inner tube catheter 11, an enclosure 5 which houses the cylindrical body 2, allowing it to move back and forth therein, and an adjustment mechanism 9 which variably adjusts the stroke length of the cylindrical body 2. When the cylindrical body 2 is moved backward, the puncturing needle 1 is housed in the outer tube catheter 12. When the cylindrical body 2 is moved forward, the puncturing needle 1 is projected from the outer tube catheter 12. The projection length of the puncturingneedle 1 can be variably adjusted by the adjustment mechanism 9.

Description

医疗用器具 Medical instruments

技术领域 FIELD

[0001] 本发明涉及一种医疗用器具。 [0001] The present invention relates to a medical instrument. 背景技术 Background technique

[0002] 为了将药液等注入到体腔内的患部,公知有从内视镜的钳口插入注射针而穿刺到患部,从而注入药剂的情况(例如专利文献1)。 Where [0002] In order to inject a chemical solution into a body cavity of an affected part, is known from the injection needle is inserted into the jaws of the endoscope and to puncture the affected area, so as to inject a medicament (e.g. Patent Document 1). 作为这样的注射针的结构如下所述。 Such a configuration of the injection needle as described below. (a) 具有在前端安装有穿刺针的内筒探针,在该内筒探针具有药液流动的腔,在后端安装有内部握柄,(b)外筒探针将该内筒探针容纳在内腔内,由容纳使内筒探针从外筒探针的前端突出的内筒握柄的外部握柄、和用于确定前后滑动的针的位置的设置在外筒探针前端的接触定位面构成。 (A) having a distal end attached to the inner tube of the probe needle, the chamber having a liquid flowing in the inner cylinder probe, mounted inside the handle at a rear end, (b) the inner tube outer cylindrical probe Probe inner pin receiving cavity by a probe accommodating the inner cylinder from the outer cylinder of the probe distal end projecting outside the inner tube grip handle, arranged for determining the position of the front and rear outer tube slidable needle tip of the probe positioning the contact surface is formed.

[0003] 为使穿刺针前端从外筒探针前端突出,通过将容纳在外部握柄内的内部握柄向前端侧压入,从而沿设置于外部握柄的滑动槽而将内部握柄也压入,因此穿刺针从外筒探针的前端突出。 [0003] The front end of the puncture needle protrudes from the front end of the probe outer tube, accommodated by the interior within the outer handle grip is pushed into the distal end side to the outside is provided along the sliding grip handle also the internal groove press-fitting, and therefore the puncture needle from the front end of the probe outer tube projection. 这时,在外筒前端设置有止动片,通过穿刺针的根部与止动片接触,从而决定从止动片的前端突出的穿刺针的突出长度。 At this time, the front end of the outer cylinder is provided with a stopper piece, through the roots of the puncture needle into contact with the movable stop plate, projecting from the stop to determine the length of the front end of the movable piece protruding puncture needle.

[0004] 但是,这种类型的医疗用器具,由于能够突出的穿刺针的长度是一定的,所以具有这样的问题:在改变使用的部位,或者想根据患者的状态而直接改变穿刺针的突出长度的情况下,必须准备另外的突出长度的医疗用器具。 [0004] However, this type of medical apparatus, since the length of the puncture needle can be protruded is constant, it has a problem: changing the protruding portion used in accordance with the state of the patient or the like directly change puncture needle the length of the case, must be prepared to further highlight the length of medical equipment. 还有,由于根据使用的部位或患者的状态,必须备齐多个不同的突出长度的医疗用器具,因此出现库存数增加的问题。 Also, since according to the state or the patient's use of the site, it must have the health of a number of different lengths with outstanding equipment, inventory increase in the number of questions therefore arise.

[0005] 作为别的类型的握柄结构,具有在外部握柄的内腔内前后移动的内部握柄,在外筒探针的末端侧内腔设置有锥面,还有在内部握柄外周也设置有锥面,使穿刺针突出时,在外部握柄侧压入内部握柄,成为在两者的锥面相合的部分突出的状态(例如,专利文献2)。 [0005] As another type of handle structure, the handle having an internal cavity to move around the outside of the handle, the end side of the outer cylinder of the probe lumen is provided with a tapered surface, and an outer circumference of the inner grip also in is provided with a tapered surface, while the puncture needle protrudes outside the handle side are pushed into the handle, becomes prominent state (e.g., Patent Document 2) in the tapered portion of both coincide.

[0006] 进而作为别的类型,具有这样类型的医疗用器具:设置有用位于探针的端部的握柄调整穿刺针的突出长度的结构,设定固定的突出长度之后,使穿刺针突出(例如,专利文献3)。 [0006] Further, as another type, having such a medical instrument type: After setting the adjustment structure located Useful needle length of the protruding end of the grip portion of the probe, a fixed set of projection length, the puncture needle protrudes ( For example, Patent Document 3). 在该类型中,成为通过握柄的设定而调整穿刺针的突出长度的结构。 In this type, the needle be adjusted by setting the configuration projecting grip length.

[0007] 作为这些医疗用器具共同的问题点,具有如下问题:穿刺针是处于被容纳在外筒探针内腔内的状态,还是突出的状态,一下子很难判断,在内部握柄和外部握柄同色的情况下,更难明白。 [0007] As the medical appliance common problems, has the following problems: the needle is in a state in which the probe is received within the cavity of the outer cylinder, or the projected state is difficult to judge at once, and within the outer handle case grip of the same color, more difficult to understand. 有可能错误地将穿刺针在从外筒探针突出的情况下从内视镜的钳口拔出,或者,在插入的情况下,使内视镜的钳口内腔部破损。 It may mistakenly pulled out from the puncture needle in the case where the outer cylindrical probe projecting from the jaws of the endoscope, or, in the case of insertion, the inner lumen of the jaw portion of the endoscope damage. 还有,在使穿刺针在突出的状态下从钳口拔出时,有从穿刺针前端飞溅药液的可能性。 Further, in the puncture needle is pulled out from the jaws in the projected state, there is a possibility of splashing liquid from the front end of the puncture needle.

[0008] 还有,在调整该突出长度的类型中,根据经验可知,由于探针的弯曲程度和弯曲部位的数量不同,而产生如下这种在结构上想要避免的现象,即,由于探针成双重结构,因此根据外筒探针和内筒探针的间隙造成的内筒探针在外筒探针内的微小的弯曲的堆积、以及在外筒探针内与内筒探针的摩擦阻力,而在内视镜插入前确认的穿刺针的突出长度、和实际的穿刺时的突出长度不同,特别是在进行将内视镜前端大幅弯曲的操作时,有可能产生在外筒探针内与内筒探针的摩擦阻力极度变大而穿刺针不突出这样的问题。 [0008] In addition, in the type of adjusting the protruding length, the empirically known that, since the number of different probes and the degree of bend of the bent portion, which is generated in the following structure want to avoid a phenomenon, i.e., since the probe needle into a double structure, the inner tube probe according to the gap between the outer cylinder and the inner cylinder probes of the probe caused by the accumulation of slight curved outer cylinder probe, and the frictional resistance of the outer cylinder and the inner cylinder probe probe , while the inner projecting length of the front of the endoscope insertion puncture needle acknowledgment, and actual protruding length different puncturing, especially during the sharp distal end of the endoscope bending operation, may occur within the outer tube and the probe frictional resistance of the inner cylinder of the probe becomes extremely large and the puncture needle does not protrude such problems.

[0009] 专利文献1 JP实开平1-68052号公报。 [0009] Patent Document 1 JP Patent Publication No. 1-68052 solid. [0010] 专利文献2 JP实开平2-139649号公报。 [0010] Patent Document 2 JP Patent Publication No. 2-139649 solid.

[0011] 专利文献3 JP实公昭63-26351号公报。 [0011] Document 3 JP Patent Publication No. Sho 63-26351 Patent Publication solid. 发明内容 SUMMARY

[0012] 本发明是鉴于上述情况而提出的,其目的在于提供一种医疗用器具,能够可变地维持一定的突出量,进而即使是弯曲了的探针,也能够使穿刺针确实从前端突出。 [0012] The present invention was made in view of the above circumstances, and its object is to provide a medical instrument, a certain amount of projection can be variably maintained, and thus even if a probe is curved, it is possible to do so from the front end of the puncture needle prominent.

[0013] 根据本发明,提供一种医疗用器具,其特征在于,具有:在前端安装有穿刺针的内筒探针;将上述内筒探针的至少一部分以能够进退的方式进行容纳的外筒探针;固定设置在上述内筒探针的后端的筒状体;将上述筒状体以能够进退的方式进行容纳的筐体;以可变的方式调整上述筒状体的行程长度的调整机构,在使上述筒状体后退时,上述穿刺针被容纳在上述外筒探针中,在使上述筒状体前进时,上述穿刺针从上述外筒探针突出,通过由上述调整机构进行的上述行程长度的调整,而以可变的方式调整上述穿刺针的突出量。 [0013] According to the present invention, there is provided a medical instrument, comprising: a distal end attached to the inner tube of the probe needle; and the inner tube of the probe to advance and retreat contained manner at least part of the outer cylindrical probe; provided fixed to the rear end of the inner cylindrical tubular body of the probe; and the cylindrical body to advance and retreat manner accommodated housing; adjusted variably adjusts the stroke length of the cylindrical body of It means, when the back of the cylindrical member, the puncture needle is accommodated in the outer cylinder of the probe, so that the cylindrical body in advance when the puncture needle protrudes from the outer cylinder probe, by the adjustment means by adjusting the stroke length, in a variable manner and adjusting the projecting amount of the puncture needle.

[0014] 本发明所述的医疗用器具,是为了将药液等注入体腔内的患部,由内视镜的钳口, 将在前端安装有穿刺针的内筒探针插入而穿刺到患部,注入药液等情况下使用的器具。 [0014] The medical instrument according to the present invention, to the affected body cavity chemical solution injected from the jaws of the endoscope, the inner cylinder is mounted at the front end of the probe insertion puncture needle to puncture the affected area, injection tool used in case of chemical or the like. 由于设置有调整穿刺针的突出长度的调整机构,因此设定一定的突出长度之后,使穿刺针突出,所以能够使任意的突出长度一定而突出。 Since the puncture needle is provided with adjustment means adjusting the projection length, thus projecting a certain length after setting, the puncture needle projection, it is possible to make an arbitrary projection protrudes a certain length.

[0015] 还有,在本发明的医疗用器具中,也可以是上述调整机构包括:在规定范围内对上述行程长度进行微调的第一调整部;粗调成比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部。 [0015] In addition, the medical appliance of the present invention, may be the adjustment means includes: a first adjusting unit of the above-described trim run length within a predetermined range; coarse than the first adjustment portion can be adjusted by the the second adjusting portion large maximum stroke length stroke length.

[0016] 还有,在本发明的医疗用器具中,也可以是上述筒状体以及上述筐体的一方上设置有滑块,另一方上设置有引导滑块的引导槽,通过上述滑块的滑动而上述筒状体进行进退,同时,上述调整机构,以可变的方式限制上述滑块向着上述穿刺针侧的滑动。 [0016] In addition, the medical appliance of the present invention, a slider may be provided on one of the cylindrical body and the housing is provided with a guide groove guiding the other slider, the slider by and said cylindrical sliding member forward and backward, simultaneously, the adjustment means, a variable limited slip manner toward the slider side of the puncture needle.

[0017] 还有,在本发明的医疗用器具中,也可以是上述调整机构具有在上述滑块向上述穿刺针侧滑动时与上述滑块接触而限制上述滑块的滑动范围的接触面,该医疗用器具能够调整上述滑块的滑动方向上的上述接触面的位置。 [0017] In addition, in the medical instrument of the present invention, the adjusting mechanism may be a contact surface to limit the sliding range of the slider when the slider is slid to the side of the puncture needle into contact with the slider, the medical possible to adjust the position of the contact surface in the sliding direction of the slider with a tool.

[0018] 进而,在本发明的医疗用器具中,也可以是上述调整机构具有与上述筐体相同的中心轴,是配置在上述筐体的后端侧的筒状构件,上述筒状构件具有相对于与上述中心轴成直角的面而沿着以上述中心轴为中心的圆周方向倾斜的倾斜面,通过上述滑块接触于上述倾斜面而限制上述滑块的滑动范围,同时,通过使上述筒状构件围绕上述中心轴进行旋转而调整接触位置。 [0018] Further, in the medical appliance of the present invention, the adjusting means may be the above-described housing having the same central axis, the cylindrical member is disposed at the rear end side of the housing body, the cylindrical member having with respect to the central axis of the inclined plane at right angles to the central axis along a circumferential direction centered on an inclined surface, via the slider into contact with the inclined surface to limit the sliding range of the slider, while, by the above-described the cylindrical member is rotated to adjust the contact position around the central axis. 通过使筒状构件围绕中心轴进行旋转而能够可变地调整穿刺针的突出量。 By rotating the cylindrical member and the protrusion amount can be variably adjusted about a central axis of the puncture needle.

[0019] 由此,能够设为对应于症例的任意的突出长度。 [0019] This can be an arbitrary length corresponding to the protruded disease embodiment.

[0020] 还有,在本发明的医疗用器具中,也可以是上述倾斜面包括:以第一角度倾斜的第一倾斜面;与上述第一倾斜面连续设置的、以大于上述第一角度的第二角度倾斜的第二倾斜面,上述筒状构件中,具有第一倾斜面的部分构成在规定范围内微调上述行程长度的第一调整部,具有第二倾斜面的部分构成粗调成比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部,通过上述滑块接触于第一倾斜面而限制上述滑块的上述滑动范围的第一状态、和通过上述滑块接触于第二倾斜面而限制上述滑块的上述滑动范围的第二状态,是通过使上述筒状构件围绕上述中心轴进行旋转而进行转换的。 [0020] In addition, the medical appliance of the present invention, may be the inclined surface comprises: a first inclined surface inclined at a first angle; and said first inclined surface continuously arranged, larger than the first angle second inclined surface is inclined at a second angle, the cylindrical member, a first portion having a first inclined surface constituting the above-described fine adjustment portion adjusting the stroke length within a predetermined range, a second inclined surface portion having a configuration as coarse larger than the maximum value can be adjusted by the first adjusting unit of adjusting the stroke length of the second portion of the stroke length, via the slide contact with the first inclined surface and the first state to limit the sliding range of the slider, and by the second state of the sliding range of the slider to limit the contact of the slider in the second inclined surface, is performed by converting the cylindrical member is rotated about said central axis. [0021] 进而,在本发明的医疗用器具中,也可以是上述倾斜面包括以第一角度倾斜的第一倾斜面和切口部,具有第一倾斜面的部分构成在规定范围内微调上述行程长度的第一调整部,具有上述切口部的部分,构成粗调成比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部,通过上述滑块接触于第一倾斜面而限制上述滑块的上述滑动范围的第一状态、和通过上述滑块接触于切口部的端部而限制上述滑块的上述滑动范围的第二状态,是通过使上述筒状构件围绕上述中心轴进行旋转而进行转换的。 [0021] Further, in the medical appliance of the present invention, may be the inclined surface comprises a first inclined surface and the notch portion is inclined at a first angle, the first inclined surface portion having a predetermined configuration within the range of the fine adjustment stroke adjusting the length of the first portion, having a portion of the cutout portion, is larger than the maximum configured by the first adjustment portion capable of adjusting the stroke length of the second adjusting portion into coarse stroke length, via the contact with the first slider a first state to limit the sliding range of the slider and the inclined surface, and a second state of the sliding range of the slider is restricted by the end portion of the slider in contact with the cutout portion, by making the cylindrical member surrounds the central axis of rotation and conversion. 由此,由于同时具有能够微调突出长度的区域、和粗调突出长度的区域,所以使内视镜前端很大弯曲而进行操作这样的情况下,由于在外筒探针内与内筒探针的摩擦,在第一调整部穿刺针没有突出的情况下,通过使用粗调部,而能够使穿刺针突出。 Thereby, since while a region capable of trimming the length of the projection, and the projection length of the coarse area, so that the distal end of the endoscope great bending operation carried out in this case, since the inner tube within the outer tube and the probe of the probe friction adjusting portion in the first puncture needle does not protrude case, by using coarse portion, and the puncture needle can be protruded.

[0022] 还有,在本发明的医疗用器具中,也可以是在上述滑块位于基端侧的状态下,使处于上述第一状态的上述筒状构件围绕上述中心轴而旋转时,限制从第一状态向第二状态的转换,在上述滑块位于上述穿刺针侧的状态下,使处于上述第一状态的上述筒状构件围绕上述中心轴而旋转时,允许从第一状态向第二状态的转换。 [0022] In addition, the medical appliance of the present invention, may be in a state where the slider is located in the base end side, so that the cylindrical member is in said first state is rotated around the central axis, the limit transition from a first state to a second state, in a state where the slider located at the side of the puncture needle, so that the cylindrical member is in said first state is rotated around the central axis, the second from the first state to allow converting the second state. 通过限制从第一状态向第二状态的转换,能够防止穿刺针从微调区域立刻向大的行程区域移动。 By limiting the transition from the first state to the second state, it is possible to prevent the puncture needle is moved from a large stroke region immediately trimming region.

[0023] 还有,在本发明的医疗用器具中,也可以是上述筒状构件具有对应于第二调整部的位置而设置的接触定位面,在使处于上述第一状态的上述筒状构件围绕上述中心轴而旋转时,上述滑块与上述接触定位面接触而限制向第二状态的转换。 [0023] In addition, the medical appliance of the present invention, may be of the cylindrical member has a contact surface positioned at a position corresponding to the second adjustment portion is provided, so that the cylindrical member in the first state in the when rotated about the central axis, the slider to limit the conversion to the second state in contact with the contact positioning surface.

[0024] 还有,在本发明的医疗用器具中,也可以是上述筒状构件具有相对于包含上述中心轴的平面而沿上述中心轴倾斜的引导面,在使上述筒状体后退时,上述滑块沿着上述引导面从第二状态向第一状态进行转换。 [0024] In addition, the medical appliance of the present invention, may be a cylindrical member having the above-described with respect to a plane including the central axis and the central axis along a guide surface inclined in the backward so that the cylindrical body, the conversion into the slider along the guide surface of the first state from the second state. 由此,操作人员不用特意而仅进行容纳穿刺针的操作就能够变更成第一调整部,能够防止错误的以突出长度最大的状态进行使用。 Accordingly, the operator need only be intentionally puncture needle receiving operation can be changed to the first adjusting portion, the error can be prevented to the maximum projecting length of the state for use.

[0025] 还有,在本发明的医疗用器具中,也可以是具有显示上述穿刺针的突出长度的突出长度显示部。 [0025] In addition, the medical appliance of the present invention may be a display projecting length of the projecting length of the puncture needle display unit.

[0026] 还有,在本发明的医疗用器具中,也可以是上述突出长度显示部,在上述筒状构件的侧面具有沿圆周方向标注了表示上述穿刺针的突出长度的数值的刻度部,与上述筒状构件的旋转位置对应而显示上述数值。 [0026] In addition, the medical appliance of the present invention, may be the length of the projection display unit, having a marked scale portion indicates values ​​of the puncture needle projection length in the circumferential direction in the side surface of the cylindrical member, corresponding to the rotational position of the cylindrical member and displaying the numerical value. 操作人员用手的动作能够确认突出长度,能够防止以错误的突出长度进行穿刺,所以是安全的。 The operator can confirm the operation of the hand protruding length, the error can be prevented from protruding to the piercing length, it is safe.

[0027] 根据本发明,能够提供一种能够可变的维持一定的突出量、进而即使是弯曲的探针也能够确实使穿刺针从前端突出的医疗用器具。 [0027] According to the present invention, it is possible to provide a variable to maintain a certain amount of protrusion, and thus even a curved probe can reliably puncture needle protrude from the distal end of a medical instrument.

[0028] 另外,本发明涉及一种医疗用器具,其特征在于,具有:在前端安装有穿刺针的内筒探针;将上述内筒探针的至少一部分以能够进退的方式进行容纳的外筒探针;固定设置在上述内筒探针的后端的筒状体;将上述筒状体以能够进退的方式进行容纳的筐体;以可变的方式调整上述筒状体的行程长度的调整机构;在使上述筒状体后退时,上述穿刺针被容纳在上述外筒探针中,在使上述筒状体前进时,上述穿刺针从上述外筒探针突出,通过由上述调整机构进行的上述行程长度的调整,而以可变的方式调整上述穿刺针的突出量,上述筒状体以及上述筐体的一方上设置有滑块,另一方上设置有引导滑块的引导槽,通过上述滑块的滑动而上述筒状体进行进退,上述调整机构构成为以可变的方式限制上述滑块向着上述穿刺针侧的滑动,并且,上述调整机构具 [0028] Further, the present invention relates to a medical instrument, comprising: a distal end attached to the inner tube of the probe needle; and the inner tube of the probe to advance and retreat contained manner at least part of the outer cylindrical probe; provided fixed to the rear end of the inner cylindrical tubular body of the probe; and the cylindrical body to advance and retreat manner accommodated housing; adjusted variably adjusts the stroke length of the cylindrical body of mechanism; when retracted so that the cylindrical body, the puncture needle is accommodated in the outer cylinder of the probe, when the above-described cylindrical body is advanced, the puncture needle protrudes from the outer cylinder probe, by the adjustment means by slider, the slider guide provided with a guide groove on the other of the adjustment of the stroke length, provided one of the projecting amount variably adjusting the puncture needle, the tubular body and the housing are, by sliding of the slider and said cylindrical body for advancing and retracting the adjusting mechanism is configured to variably limit the slider sliding toward the puncture needle side, and the adjusting mechanism has 有与上述筐体相同的中心轴,是配置在上述筐体的后端侧的筒状构件,上述筒状构件具有相对于与上述中心轴成直角的面而沿着以上述中心轴为中心的圆周方向倾斜的倾斜面,通过上述滑块接触于上述倾斜面而限制上述滑块的滑动范围,并且通过使上述筒状构件围绕上述中心轴进行旋转而调整接触位置,上述倾斜面包括:以第一角度倾斜的第一倾斜面;切口部或者以大于上述第一角度的第二角度倾斜的第二倾斜面;上述第二倾斜面连续于上述第一倾斜面而设置,具有第一倾斜面的部分构成在规定范围内微调上述行程长度的第一调整部,具有上述切口部或者上述第二倾斜面的部分构成粗调成比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部,通过上述滑块接触于第一倾斜面而限制上述滑块的上述滑动范围的第一状态、和通过上 Has the same central axis of the housing, the cylindrical member is disposed in the rear end side of the housing, said cylindrical member with respect to the central axis at right angles to a plane along the central axis of the above-described circumferential direction of the inclined surface, in contact with the slider by the inclined surface to limit the sliding range of the slider, and is adjusted so that the contact position by the cylindrical member is rotated about the center axis, the inclined surface comprising: a first a first inclined surface inclined at an angle; cutout portion or the second inclined surface at a second angle greater than the first angle of inclination; and the second inclined surface continuous with the first inclined surface is provided, having a first inclined surface a first adjusting portion constituting part of the above-described fine adjustment of the stroke length within a predetermined range, having a portion of the cutout portion or the second inclined plane is configured to be larger than the maximum value of the coarse first adjustment portion can be adjusted by the stroke length of the run length a first state of the sliding range of the second adjusting portion by the slider to limit contact of the slider in the first inclined surface, and by the 滑块接触于上述切口部的端部或者上述第二倾斜面而限制上述滑块的上述滑动范围的第二状态,是通过使上述筒状构件围绕上述中心轴进行旋转而进行转换的。 The second state of the sliding range of the slider in contact with the end portion of the cutout portion or the second inclined surface of the slider is limited, the conversion is performed by allowing the cylindrical member to rotate about said central axis.

[0029] 附图说明 [0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 图1是表示在作为本发明实施例的医疗用器具中,穿刺针从外筒探针的前端突出的状态的一个例子。 [0030] FIG. 1 shows an example of a tool, the distal end of the puncture needle protrude from the outer cylinder in the medical probe as an embodiment of the present invention. 在外筒探针中间部为了省略全长而断裂表示,在断裂表示部为了省略全长而将内筒探针断裂表示。 Cylindrical intermediate portion of the outer probe is omitted for the full length expressed broken, the broken portion for showing a full-length probe by omitting the inner cylinder rupture FIG.

[0031] 图2是表示在作为本发明实施例的医疗用器具中,穿刺针容纳在外筒探针的内腔内的状态。 [0031] FIG. 2 shows a tool, a puncture needle housed within the lumen of the outer tubular state in the medical probe as an embodiment of the present invention. 在外筒探针中间部为了省略全长而断裂表示,在断裂表示部为了省略全长而将内筒探针断裂表示。 Cylindrical intermediate portion of the outer probe is omitted for the full length expressed broken, the broken portion for showing a full-length probe by omitting the inner cylinder rupture FIG.

[0032] 图3A〜图3G是表示在作为本发明实施例的医疗用器具中,表示突出级别调整握柄以及筒状体的操作结果的窗口内的突出状态显示部、突出级别显示部的例子的图。 [0032] FIG 3A~ FIG 3G shows the present invention in a medical instrument for the embodiment, an example of the state of projecting in the window level adjustment operation result projecting grip and the cylindrical body display unit, the level display section projecting Fig.

[0033] 图4是作为本发明实施例的医疗用器具的握柄部的分解图,是表示作为被容纳在筐体的内腔内而看不见的部件的调整机构的图。 [0033] FIG. 4 is an embodiment of the present invention as medical exploded embodiment of FIG handle portion of the appliance, is a member of the adjusting mechanism is housed within the cavity of the housing being invisible FIG.

[0034] 图5A、图5B是表示作为本发明实施例的医疗用器具的行程调整机构的详细例子的图。 [0034] FIGS. 5A, 5B shows an embodiment of the present invention as medical a detailed example of the stroke adjusting mechanism of the appliance of FIG.

[0035] 图6A、图6B是表示作为本发明实施例的医疗用器具的穿刺针的突出状态的图,表示了外筒探针的开口部的例子。 [0035] FIGS. 6A, 6B shows a medical embodiment of the invention with the state of FIG puncture needle projection instrument, showing an example of the opening portion of the outer tube of the probe.

[0036] 具体实施方式 [0036] DETAILED DESCRIPTION

[0037] 以下,对于本发明的实施方式,使用附图进行说明。 [0037] Hereinafter, embodiments of the present invention, will be described with reference to the drawings. 此外,在全部的附图中,对于共通的构成要素标上相同的附图标记,在以下的说明中适当省略详细的说明。 Further, in all drawings, the same reference numerals on the common constituent elements, a detailed description will be appropriately omitted in the following description.

[0038] 如图1所示,医疗用器具具有:在前端安装有穿刺针1的内筒探针11 ;可进退地容纳内筒探针11的至少一部分的外筒探针12 ;固定设置在内筒探针11的后端的筒状体(内部握柄)2 ;可进退地容纳筒状体2的筐体(外部握柄)5 ;可变地调整筒状体2的行程长度的调整机构(行程调整结构)9,在使筒状体2后退时,将穿刺针1容纳在外筒探针12 内,在使筒状体2前进时,使穿刺针1从外筒探针12突出,通过由调整机构9进行的行程长度的调整,而可变地调整穿刺针1的突出量。 [0038] As shown in FIG. 1, a medical instrument comprising: a distal end attached to the inner tube 1 of the probe needle 11; at least a portion of the outer tube can accommodate the inner tube to advance and retract the probe 11 of the probe 12; provided fixed the rear end of the inner tube 11 of the probe of the cylindrical body (inner handle) 2; forward and backward can receive the cylindrical housing body 2 (outer handle) 5 thereof; variably adjusting mechanism 2 to adjust the stroke length of the cylindrical body (stroke adjustment structure) 9, when the cylindrical body 2 backward, the puncture needle cartridge 1 accommodated in the outer probe 12, when the cylindrical body 2 advances, the puncture needle probe 1 protrudes from the outer cylinder 12, by stroke length adjustment performed by the adjustment means 9, and variably adjusting the amount of protrusion of the puncture needle 1. 还有,表示穿刺针1的突出长度的状态的突出状态显示部,设置在筒状体2的外周前端侧。 Further, the projecting STATUS indicates puncture needle projection length of the display unit 1 provided on the outer periphery of the front end side of the cylindrical body 2. 进而,在调整机构9的侧面,具有沿圆周方向标记了表示穿刺针的突出长度的数值的刻度部8,其与调整机构9的旋转位置对应而显示数值。 Further, the side surface of the adjusting mechanism 9, a mark having a numeric representation of the puncture needle projection length scale portion 8 in the circumferential direction, with the rotational position adjustment mechanism 9 corresponds to displayed value.

[0039] 以下,对各部的结构进行说明。 [0039] Hereinafter, the configuration of each component will be described.

[0040] 内筒探针11是以在外筒探针12内腔内沿长轴方向前后移动的方式而使用的, 另一方面,外筒探针12由内视镜的钳口插入。 [0040] The inner cylindrical probe 11 is moved back and forth within the cavity 12 along the longitudinal direction of the outer cylinder of the probe embodiment is used, on the other hand, the outer tube 12 by the endoscope probe is inserted into the jaws. 作为内筒探针11所使用的材料,由于基于上述理由,而优选表面光滑性好,还有在穿刺后透过探针而在针的根部能够目测确认血液的逆流的情况,因此优选具有透明性的材料。 As the inner cylinder 11 of the probe material used, due to the above reasons, the preferred surface smoothness is good, there are confirmed reverse flow of blood at the root of the needle can be visually through the probe after the puncture, and therefore preferably has transparency sexual material. 进而,为了将从内视镜前端突出的探针穿刺到患部,优选在穿刺时探针不弯曲、还有在弯曲的内视镜的钳口内腔内前后移动时具有适度的弯曲弹性的材料,优选使用聚四氟乙烯树脂(PTFE)、四氟乙烯-六氟丙烯共聚物树脂(FEP)、聚酰胺类树脂等合成树脂。 Further, in order from the distal end of the endoscope protrusion puncture probe to the diseased part, preferably the probe is not bent upon puncturing, as well as having a moderate flexurally elastic material that moves back and forth within the jaws of the curved lumen of the endoscope, preferably polytetrafluoroethylene resin (PTFE), tetrafluoroethylene - hexafluoropropylene copolymer resin (FEP), synthetic resin such as polyamide.

[0041] 外筒探针12是以由内视镜的钳口插入的方式而使用的,所以与内筒探针11同样, 优选表面光滑性好、还有在穿刺后透过探针在针的根部能够目测确认血液的逆流的情况, 因此优选具有透明性的材料。 [0041] The probe outer tube 12 is inserted by the jaws of the embodiment of the endoscope is used, so that the same probe 11 and the inner cylinder, preferably good surface smoothness, as well as through the probe needle after puncturing the roots can be visually confirmed reverse flow of blood, it is preferable that a material having transparency. 由此,作为材料,与内筒探针11同样,优选使用聚四氟乙烯树脂(PTFE)、四氟乙烯-六氟丙烯共聚物树脂(FEP)、聚酰胺类树脂等合成树脂。 Accordingly, as the material, and the inner cylinder 11 likewise probe, preferably polytetrafluoroethylene resin (PTFE), tetrafluoroethylene - hexafluoropropylene copolymer resin, synthetic resin (FEP), polyamide-based resin and the like.

[0042] 作为探针的尺寸,由于内筒探针11是为了流入高粘度的药液,所以若太细则药液注入阻力变大,若太粗则药液注入阻力太小的同时操作性不好,因此,作为内径,优选为0. 4mm以上、1. 2mm以下。 [0042] As the size of the probe, the probe since the inner cylinder 11 flows into the liquid to a high viscosity, so if too Details liquid injection resistance becomes large, if it is too thick liquid medicine injection resistance is not too small, while workability good, therefore, as the inner diameter, or more preferably 0. 4mm, 1. 2mm or less. 外径只要是具有能够经得住药液注入时的压力的厚度的外径即可,不用特别规定,但需要考虑外筒探针12的尺寸。 As long as the outer diameter to an outer diameter capable of withstanding the injection pressure of liquid medicine thickness, not particularly specified, but the need to consider the size of the outer tube 12 of the probe.

[0043] 外筒探针12的内径,若内筒探针11的外径和外筒探针12的内径的间隙狭小,则在将穿刺针1突出或者容纳时摩擦阻力变大,还有若太宽则在弯曲了内视镜的弯曲部中, 以沿着弯曲的外筒探针12内径的方式,内筒探针11外径部在弯曲侧贴紧,因此内筒探针11的长度变短,短于所设定的突出长度,因此优选为比内筒探针11的外径大0. Imm以上、 0.3mm以下的内径。 [0043] The inner diameter of the outer tube of the probe 12, the inner diameter of the gap when the outer diameter of the probe 11 of the inner tube and the outer tube of the probe 12 is small, the frictional resistance becomes large when the puncture needle 1 projecting or receiving, if there too wide at the bending portion of the endoscope is bent in the manner of the probe 12 along the curved inner diameter of the outer tube, the inner tube outer diameter of the probe 11 in close contact with the curved side portion, so the length of the inner tube 11 of the probe becomes shorter in projecting length of the set, it is preferable for the outer diameter of the probe 11 above the large 0. Imm, 0.3mm inner diameter less than the inner cylinder. 作为外径,若在内视镜的钳口顺利插入,不会妨碍送气、吸引即可,尺寸没有规定。 As the outer diameter, inner endoscope when the jaws smoothly inserted, does not interfere with the air supply, can attract, the size is not specified.

[0044] 进而,作为长度,虽然从内筒探针11、外筒探针12同时穿刺的部位起有所不同,但优选1. 5〜2. 5m。 [0044] Further, as the length, while the probe 11 from the inner tube, the outer tube of the probe 12 while the puncture site is different from, but is preferably 1. 5~2. 5m.

[0045] 为防止从筐体5抻出的内筒探针11和外筒探针12的弯曲,可以将弯曲防止管13 以覆盖外筒探针12的外径部的方式用粘着或压接等方式安装在筐体5上。 [0045] In order to prevent the inner tube from the probe stretch out housing 11 and the outer tube 5 is bent probe 12 can be prevented from bending tube portion 13 to cover the outer diameter of the outer tube 12 of the probe with adhesive or crimping the like mounted on the casing 5. 弯曲防止管13 是用于防止内筒探针11和外筒探针12的弯曲的管,所以优选具有弹性的材料,优选聚酰胺类树脂、软质聚氯乙烯树脂(PVC)等合成树脂这样的具有适度弹性的树脂。 Bending preventing tube 13 is a probe 11 for preventing the inner tube and the outer tube bent probe tube 12, it is preferable that an elastic material, preferably a polyamide resin, a soft polyvinyl chloride resin (PVC) and other synthetic resin such a resin having appropriate elasticity. 作为自筐体5 起的长度,优选30mm〜60mm。 As the housing 5 from the starting length, preferably 30mm~60mm. 还有,只要得到适当的弯曲刚性而能够防止弯曲即可,而使用热收缩管也是优选的一个例子。 Further, as long as appropriate to give flexural rigidity to bending can be prevented, and the heat-shrinkable tube is also preferable example.

[0046] 作为安装在内筒探针11的前端的穿刺针1的尺寸优选20G〜25G,根据使用的部位和药液选择即可,还有作为从外筒探针12前端突出的穿刺针1的长度,优选2〜8m,该情况也是根据使用的部位选择即可。 [0046] As the size of the probe is preferably attached to the inner tube distal end of the puncture needle 11 20G~25G 1, according to the site of use, and the solution can be selected, as well as the puncture needle 12 protrudes from the tip of the probe outer tube 1 length, preferably 2~8m, this case is selected according to the site of use.

[0047] 筒状体2设置在内筒探针11的后端侧,通过使筒状体2进退而能够使穿刺针1从外筒探针12进出。 [0047] The cylindrical body 2 is provided with a rear end side of the inner cylinder 11 of the probe, through the cylindrical body 2 capable of advancing and retracting the puncture needle 1 from the outer tube 12 and out of the probe. 而且,是以如下方式构成的医疗用器具:在筒状体2或者筐体5的任意一方上设置有滑块3,另一方上设置有引导滑块3的引导槽,通过滑块3的滑动而筒状体2 进行进退,同时,调整机构9可变地限制滑块3向着穿刺针侧的滑动。 Further, the following embodiment is configured with a medical instrument: slider 3 is provided on either one of the cylindrical body 2 or the housing body 5, the guide is provided with a slide guide groove 3 on the other, by sliding the slider 3 the cylindrical body 2 forward and backward while adjusting mechanism 9 variably restricting sliding the slider 3 toward the side of the puncture needle.

[0048] 作为筒状体2的形状,为了连接用于在末端注入药液的注射器,而注入高粘度的药液,需要成为能够连接引导锥形形状的注射器的形状。 [0048] As the cylindrical shape of the body 2, in order to connect the syringe to inject a medical solution at the end, a high viscosity liquid is injected, the shape of the syringe to be connectable guiding tapered shape. 还有,由于插入到筐体5的内腔中而与筐体5 —体使用,所以作为材料,需要与筐体5同样,需要是相对于使用的药液具有耐性的材料。 Further, since the housing is inserted into the lumen 5 with the housing 5 - member used, so as a material, and the housing 5 need Similarly, with respect to the chemical needs to be used a material having a resistance.

[0049] 筐体5是将筒状体2可进退地容纳的构件。 [0049] The casing 5 is a cylindrical member 2 can receive the advancing and retracting member. 作为筐体5的形状,在使穿刺针1突出时将筐体5外形部分用手保持,并压入筒状体2,因此优选圆筒形状或多棱柱形状,但如果是易握的形状即可,并不特别限定。 The shape of the housing 5 of the puncture needle in the casing 1 when the protrusion portion of the hand holding profile 5, and pressed into the cylindrical body 2, and therefore preferably a cylindrical shape or a prismatic shape, but if it is a shape that is easy to grip may be, it is not particularly limited. 还有,作为材料,优选加工性好、便宜且轻的塑料,进而优选ABS树脂、聚碳酸酯树脂、硬质聚氯乙烯树脂。 Further, as the material, preferably good processability, cheap and lightweight plastic, more preferably ABS resin, a polycarbonate resin, hard polyvinyl chloride resin.

[0050] 调整机构9由在规定范围内微调行程长度的第一调整部、和粗调成比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部。 [0050] The trimming section 9 by the first adjusting the stroke length within a predetermined range, and is larger than the maximum value can be adjusted by the first adjusting unit of adjusting the stroke length of the second portion of the stroke length adjusting means into coarse. 还有,调整机构9具有在滑块3向穿刺针1侧滑动时与滑块3接触而限制滑块3的滑动范围的接触面,而能够调整滑块3的滑动方向上的接触面的位置。 Further, the adjusting mechanism having a contact surface 9 with the slide 3 and the sliding limit the scope of the slider 3 when the slider 3 is slid to a side of the puncture needle, it is possible to adjust the position of the contact surface in the sliding direction of the slider 3 .

[0051] 而且,是这样的医疗用器具:调整机构9与筐体5具有相同的中心轴,是配置在筐体5的后端侧的筒状构件,筒状构件具有相对于与中心轴垂直的面而沿以中心轴为中心的圆周方向倾斜的倾斜面,通过滑块3接触于倾斜面而限制滑块3的滑动范围,同时通过使筒状构件围绕中心轴进行旋转而调整接触位置。 [0051] Further, a medical instrument is: adjusting mechanism 9 and the housing 5 have the same center axis, the cylindrical member is disposed in the rear end side of the housing body 5 with respect to the cylindrical member perpendicular to the central axis It surfaces inclined to the central axis along the circumferential direction of the inclined surface, the inclined surface 3 and limit the sliding range of the slider by contacting the slider 3, while the contact position is adjusted by rotating the cylindrical member about the central axis.

[0052] 突出级别的调整是通过与突出长度调整握柄7联动工作的调整机构9而进行的。 [0052] The projection level adjustment is performed by adjusting grip 7 work in conjunction with protruding length adjusting mechanism 9. 即,如图3A〜图3G所示,将作为滑块3的往复运动的滑动距离的滑块3和滑块接触定位部10的距离通过调整机构9上的滑块接触定位部10而进行调整,并调整将筒状体2向筐体5 侧压入的距离,从而调整得到穿刺针1从外筒探针12前端突出的长度。 That is, as shown in FIG. 3A~ 3G, the contacting portion as the positioning of the slider 3 and the slider sliding distance of the slider 3 reciprocates by the distance of the slider 10 on the positioning portion 9 in contact with the adjustment mechanism 10 adjusts and adjusting the cylindrical body 2 to the housing 5 from the side of press-fitting, thereby adjusting the puncture needle 1 to give the probe 12 from the outer tube distal end projection length.

[0053] 调整机构9与突出长度调整握柄7的操作联动,而通过将与筒状体2长轴方向的轴相同的轴作为中心的旋转驱动,从而能够改变与筒状体2的旋转位置关系的情况是重要的特征,根据与筒状体2的旋转位置,滑块3和接触面10的直线距离发生变化,由此来调整筒状体2的压入距离,从而调整穿刺针1的突出长度。 [0053] The adjusting mechanism 9 operatively coupled to the adjustment handle 7 and the projecting length, and by the same shaft with the longitudinal direction of the cylindrical member 2 as the rotational center of the drive, it is possible to change the rotational position of the cylindrical body 2 where a relationship is an important feature, the rotational position of the cylindrical body 2, the slider 3 and the linear distance the contact surface 10 is changed, thereby adjusting the distance of the cylindrical body 2 is pressed, thereby adjusting the puncture needle 1 protrusion length. 因此,不一定必须是图4的分解图这样的部件结构,例如在外部握柄的内面一体设置行程调整机构9,在筒状体2将滑块3和突出长度调整握柄7以一体或者粘着或者其他的方法固定,由于突出长度调整握柄7的操作而使筒状体2围绕长轴方向轴进行旋转,使筒状体2和行程调整机构9的旋转位置变化,由此即使是调整并得到滑块3和接触面10的直线距离的结构,也能够得到同样的效果,考虑决定使用情况和组装工序等即可。 Therefore, is not necessarily 4 is an exploded view of the components of such a structure, for example stroke adjusting mechanism 9 is integrally provided in the outer surface of the handle, the cylindrical body 3 and the slider 2 to adjust the protruding length of the grip 7 or integrally adhered to or other fixing method, since the operation projecting length adjusting grip 7 is rotated about the cylindrical body 2 long axis direction of the shaft, the rotational position of the stroke adjusting mechanism 2 and the cylindrical body 9 changes, and thereby, even after adjustment of structure 3 and the linear distance of the slide contact surface 10, the same effect can be obtained, considering usage and decide to assembling process or the like.

[0054] 接触面10如图5A所示,由第一倾斜面23和第二倾斜面M构成,第一倾斜面23是通过上述结构而选择性控制滑块3的行程长度的部分,不限于如图所示那样的光滑的曲线形状,也可以是多段的具有高度差的形状或更复杂的曲线形状等,考虑到想调整的穿刺针1 的突出长度级别的数量而决定即可,但通过曲线形状,能够调整连续的突出长度,则更为理想。 [0054] The contact surface 10 shown in Figure 5A, a first inclined surface and the second inclined surface 23 M, and the first inclined surface 23 is selectively controlled by the above-described structure of the run length portion of the slider 3 is not limited to as smooth curved shape as shown, or may be a multi-section has the shape of a more complex curved shape or height difference, taking into account the number of levels want to adjust the protruding length of the needle 1 can be determined, but by curve shape, can be adjusted continuously projection length, the more preferable. 第二倾斜面M是以相比于第一倾斜面23而滑块3的行程长度更长的方式构成的,穿刺针1的突出长度通常为最大。 Run length longer, a second inclined surface M is compared to the first inclined surface 23 and the slider 3 constituted, the protruding length of the puncture needle 1 is typically the largest.

[0055] 如已经叙述的那样,由于在使内视镜的前端极度弯曲时外筒探针12和内筒探针11的间隙以及摩擦阻力的增大而有可能在调整通常的突出长度的行程调整范围内穿刺针1不突出,为解决该问题如图5A、图5B所示在行程调整机构9的接触面10上设置第一倾斜面23和第二倾斜面M。 [0055] As already described above, since when the distal end of the endoscope probe increases extremely curved outer cylinder and the inner cylinder 12 of the probe 11 and the frictional resistance of the gap is possible to adjust the stroke length of the projecting generally 1 within the adjustment range of the puncture needle does not protrude, in order to solve the problem of FIG. 5A, a first inclined surface and the second inclined surface 23 as shown in FIG. 5B stroke adjusting mechanism 9 on the contact face 10 M. 由于第二倾斜面M比第一倾斜面23进一步延长行程长度,因此在外筒探针12和内筒探针11的摩擦阻力带来的穿刺针1的突出不足/不良产生时向第二倾斜面M转换而进一步使穿刺针1突出,而能够确实突出穿刺针1。 M second inclined surface due to further extend the stroke length than the first inclined surface 23, thus projecting the probe outer tube and the inner tube 12 is less than the frictional resistance of the probe 11 to bring the puncture needle 1 / second inclined surface to generate undesirable M conversion a further puncture needle projection, it is possible to do the puncture needle 1 protrudes. 第二倾斜面对是穿刺针1完全从外筒探针12突出,突出长度通常为最大。 The second inclined face of the puncture needle 1 is entirely probe 12 protrudes from the outer tube, generally the maximum protruding length.

[0056] 在第二倾斜面M,如图6A所示,假设了不仅穿刺针1,连内筒探针11也由外筒探针12前端突出的情况。 [0056] In a second inclined surface M, shown in Figure 6A, it is assumed that not only the puncture needle 1, the inner tube probe 11 is also connected by an outer cylinder 12 protruding distal end probe case. 穿刺针1的突出长度是从穿刺针1的前端到内筒探针11的前端的9穿刺针1的长度本身作为突出长度。 A puncture needle projection length from the distal end of the probe 1, the puncture needle 9 into the length of the barrel 11 of the puncture needle 1 itself as the leading end of the protruding length. 在有可能从穿刺的目的部位,不仅穿刺针1,连内筒探针11也向身体组织内刺入的情况下,如图6B所示将外筒探针12前端的开口部19缩小直径,仅穿刺针1能够插入贯通,从而内筒探针11不能插入贯通,由此防止了在穿刺时与身体组织接触的面变大、而连探针也向活体组织内刺入的情况,而能够排除穿孔的危险,因此成为优选的例子。 Where possible target site from the puncture, the puncture needle 1 is not only, but also even the inner tube 11 piercing probe into the body tissue, the outer cylinder 6B, the front end of the probe 19 of the opening portion 12 of reduced diameter, only 1 can be inserted through the puncture needle, so that the inner tube can not be inserted through the probe 11, thereby preventing the surface upon contact with body tissue puncture becomes large, and even the case where the probe is also pierced into the living tissue, it is possible eliminate the risk of perforation, and therefore is a preferable example.

[0057] 由于第二倾斜面对是穿刺针1的突出长度常为最大,所以平时总处在第二倾斜面24的情况从安全面来看并不优选。 [0057] Since the projecting length of the second inclined face is often the puncture needle 1 is the maximum, so usually always in the case of the second inclined surface 24 is not preferable from a security perspective. 该问题是通过设置如图5A、图5B所示的引导面14而解决。 This problem is solved by setting in FIG. 5A, 5B, the guide surface 14 as shown solved. 穿刺针1的容纳操作使筒状体2滑动,滑块3与引导面14接触。 A puncture needle receiving operation causes the sliding of the cylindrical body, the slider 3 in contact with the guide surface 14. 由于引导面14为倾斜面,所以若滑块3接触时,使行程调整机构9围绕轴中心旋转,能够改变到第一倾斜面23。 Since the guide surface 14 of the inclined surface, so that if the slider 3 contacts the stroke adjusting mechanism 9 is rotated about the shaft center can be changed to the first inclined surface 23. 由此,不用技术人员特别注意,仅用容纳穿刺针1的操作就能够变更到第一倾斜面23,而能够防止错误地以突出长度为最大的状态使用。 Thus, without special attention in the art, only the receiving operation of the puncture needle 1 can be changed to the first inclined surface 23, it is possible to prevent erroneous state of maximum protrusion length used.

[0058] 倾斜面包含:以第一角度倾斜的第一倾斜面23 ;与第一倾斜面23连续设置的、以大于第一角度的第二角度倾斜的第二倾斜面24,筒状构件之中,具有第一倾斜面23的部分,构成在规定范围内微调上述行程长度的第一调整部,具有第二倾斜面M的部分构成粗调为比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部,通过滑块3接触于第一倾斜面23而限制滑块3的滑动范围的第一状态、通过滑块3接触于第二倾斜面M而限制滑块3的滑动范围的第二状态,是通过使筒状构件围绕中心轴进行旋转而进行转换的。 [0058] The inclined surface comprises: a first inclined surface 23 is inclined at a first angle; continuous with the first inclined surface 23 is provided, the second inclined surface at a second angle greater than the first angle of inclination 24 of the cylindrical member having a first inclined surface portion 23, the first adjusting portion constituting the above-described fine adjustment of the stroke length within a predetermined range, having a second inclined surface portion configured M coarse than the first adjustment portion can be adjusted by the stroke length adjusting the maximum value of the second portion of the large stroke length, the first inclined surface 23 in a first state to limit the sliding range of the slider 3 by contacting the slider 3, a second inclined surface M by restricting sliding contact slide 3 the second state of the sliding block 3 range, the conversion is performed by the cylindrical member is rotated around the central axis.

[0059] 还有,如图5B所示,作为其他实施方式,也可以是以下这样的医疗用器具:倾斜面包括以第一角度倾斜的第一倾斜面23和切口部25,具有第一倾斜面23的部分构成在规定范围内微调上述行程长度的第一调整部,具有切口部25的部分,构成粗调为比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部,通过滑块3接触于第一倾斜面23限制滑块3的滑动范围的第一状态、通过滑块3接触于切口部25的端部而限制滑块3的滑动范围的第二状态,是通过使筒状构件围绕中心轴而旋转来进行转换的。 [0059] Further, as shown in FIG. 5B, as another embodiment, it may be such a medical instrument for the following: a first inclined surface comprises an inclined surface 23 and the cutout portion 25 is inclined at a first angle, having a first inclined surface portion 23 constituting the above-described first adjustment section trim stroke length within a predetermined range, the cutout portion 25 has a portion configured as the first coarse larger than the maximum value can be adjusted by the first adjustment portion of the stroke length of the run length two adjustment portions, a first state of the sliding range of the slider 3 in the first inclined surface 23 limited by the contact with the slider 3, the cutout portion 25 at an end portion of the sliding range of the slider 3 is restricted by contact of the second slider 3 state, and the rotation is converted by the cylindrical member about the central axis.

[0060] 在滑块3位于基端侧的状态下,使处于第一状态的筒状构件围绕中心轴而旋转时,限制从第一状态向第二状态的转换,在滑块3位于穿刺针1侧的状态下,使处于第一状态的筒状构件围绕中心轴而旋转时,允许从第一状态向第二状态的转换,筒状构件具有对应于第二调整部的位置而设置的接触定位面15,使处于第一状态的筒状构件围绕中心轴而旋转时,滑块3与接触定位面接触而限制向第二状态的转换。 [0060] In the state where the slider 3 is located on the proximal side of the cylindrical member in a first state when rotated around the central axis, to limit to a second state from a first state, the puncture needle 3 is positioned in the slide 1 side in the state, the cylindrical member is in the first state is rotated around the central axis, allowing the conversion from a first state to a second state, the tubular member having a contact position corresponding to the second adjustment portion is provided positioning surface 15, the cylindrical member is in the first state is rotated around the central axis, the slider 3 is restricted transition to the second state in contact with the positioning surface contacts.

[0061] 这是考虑到了在容纳穿刺针1的状态下的突出长度调整操作时,并非出于己愿却转移到第二倾斜面M的情况,而假设了错误地在突出长度为最大的状态下进行穿刺的情况,但这是如图5A、图5B所示通过设置接触定位面15而解决了的。 When [0061] which is given to the projecting length adjusting operation in a state where the puncture needle 1 is housed, but not wish to have transferred out of the case to the second inclined surface M, an error in the assumed maximum protruding length state a case where the puncture, but it is shown in FIG. 5A, 5B, by providing a contact surface 15 and the positioning of the resolved. 即滑块3与接触定位面15接触,限制行程调整机构9的动作,从而能够防止在无意的操作下转移到第二倾斜面M 的情况,与上述引导面14成为连续面能够实现突出和容纳的顺利操作而是优选的实施例。 I.e., the slider 3 positioned in contact with the surface 15 in contact, to limit the operation of the stroke adjusting mechanism 9, it is possible to prevent the transfer of a case where the second inclined surface M in an unintended operation, with the guide surface 14 protrudes into a continuous and receiving surface can be achieved but smooth operation of the preferred embodiment.

[0062] 筒状构件具有相对于包含中心轴的平面而沿中心轴倾斜的引导面,在使筒状构件围绕中心轴而旋转时,沿引导面引导滑块3,在第一状态和第二状态之间进行转换。 [0062] The cylindrical member having a center along the axis of the guide surface is inclined relative to the plane including the central axis, when the cylindrical member is rotated around the central axis, the slider along the guide surface of the guide 3, in a first state and a second transition between states.

[0063] 具有表示穿刺针1的突出长度的刻度部8,刻度部8在筒状构件的侧面,沿着圆周方向标注表示穿刺针1的突出长度的数值,与筒状构件的旋转位置对应而显示数值。 [0063] indicates a scale having a projecting portion of the length of the puncture needle 1 8, the scale on the side surface portion 8 of the cylindrical member, a numerical value in the circumferential direction denoted by the protruding length of the needle 1, the rotational position of the tubular member in correspondence display value.

[0064] 表示突出长度级别以及突出状态的窗口6,设置在筐体5外周上的一部分上,作为位置,只要是在握住筐体5时不隐藏而易见的位置即可,而不特别限定。 [0064] indicates the length of the projecting portion and the protruding state level window 6, is provided on the outer periphery of the housing body 5, as the position, as long as the position of holding the housing 5 is not hidden apparent to see, and is not particularly limited. 还有,在本实施例中,也作为滑块3的轨道使用,但,不一定需要集中功能,即使每个功能分开也没有问题。 Further, in the present embodiment, as the slide rail 3 is also used, however, do not necessarily need to focus on the function, each function separately even if there is no problem. 但是,由于滑块3的移动和位置也表示穿刺针1的突出状态,因此能够有效的活用,所以更加优选本实施例这样的方式。 However, due to the movement and position of the slider 3 also represents the state of projecting the puncture needle 1, it is possible to effectively utilize, in such a way so that the present embodiment further preferred embodiment.

[0065] 作为筒状体2的外周上的突出状态显示部4,为了一眼就能够判断,优选在处于突出状态时和在处于容纳状态时成为对照色,在本实施例中,通过与筒状体2的颜色成为对照色,而能够明确表示突出状态和容纳状态,所以是优选的。 [0065] The display unit 4 as a projecting state on the outer periphery of the cylindrical body 2, for one can determine, preferred and become control color when in the housed state when in the projection state, in the present embodiment, by the cylindrical 2 becomes a color control color, it is possible to clear the protruding and receiving state status, which is preferable. 还有,窗口6内的突出状态显示部4必须能够清楚的目测识别,因此通过与筐体5的外周上的颜色成为对照色,对比明显而目测性提高,所以是优选的。 Further, the projecting state in the window display section 4 6 can clearly visually be identified, so the color on the outer periphery of the control housing 5 becomes color, contrasting and visually improved, which is preferable. 突出状态显示部4和筐体5以及筒状体2的颜色,以丝网印刷和烫印印刷或者密封件等的贴附、部件自身的着色等进行即可,尤其是方法没有限定。 Projecting state display section 5 and the housing 4, and the color of the cylindrical body 2, screen printing and attaching to the printing or stamping the seal or the like, the coloring component itself can be, in particular, the method is not limited.

[0066] 以下,对本实施方式的医疗用器具的效果进行说明。 [0066] Hereinafter, the present embodiment of the medical embodiment will be described effects of the appliance.

[0067] 本实施方式的医疗用器具,具有:在前端安装有穿刺针1的内筒探针11 ;将该内筒探针11的至少一部分可进退地容纳的外筒探针12 ;固定设置在内筒探针11的后端的筒状体2 ;可进退地容纳筒状体2的筐体5 ;可变地调整筒状体2的行程长度的调整机构9,以在使筒状体2后退时,穿刺针1被容纳在外筒探针12中,在使筒状体2前进时,穿刺针1从外筒探针12突出,通过由调整机构9进行的行程长度的调整而可变地调整穿刺针1的突出量的方式来进行构成,从而设置调整穿刺针1的突出长度的调整机构9,所以设定一定的突出长度之后而使穿刺针1突出,因此能够使任意的突出长度一定而突出。 [0067] The present embodiment is a medical instrument, comprising: a distal end attached to the inner tube 1 of the probe needle 11; at least a portion of the outer cylinder may be housed in the advance and retract the inner tube 11 of the probe 12 probe; fixed the rear end of the inner cylindrical tube 11 of the probe body 2; can advance and retract housing 52 accommodating cylindrical body; variably adjusting means adjusting the stroke of the cylindrical member 9 of length 2, in order that the cylindrical body 2 when retracted, the puncture needle 1 is 12, when the cylindrical body 2 advances, the needle probe 1 from the outer cylinder 12 accommodated in the outer probe tube protrudes variably adjust the stroke length by the adjusting mechanism 9 projecting the puncture needle after the puncture needle projection adjustment of the amount to constitute a manner so as to set the adjustment mechanism adjusting the protruding length 1 of the puncture needle 9, so that a certain set length of the projection, it is possible to make an arbitrary constant projecting length and prominent.

[0068] 还有,通过调整机构9由在规定范围内微调行程长度的第一调整部23、和粗调成比由第一调整部23能够调整的行程长度的最大值大的行程长度的第二调整部M构成,从而能够成为对应于症例的任意的突出长度。 [0068] Further, by the first adjusting section 9 by the first trimming length of the stroke 23 within a predetermined range, and to be larger than the maximum value of the coarse adjustment by the first portion 23 can be adjusted to the stroke length of the stroke length adjustment mechanism two adjusting unit M configured so as to become an arbitrary length corresponding to the projecting disease embodiment.

[0069] 倾斜面包括以第一角度倾斜的第一倾斜面23和切口部25,具有第一倾斜面23的部分构成在规定范围内微调上述行程长度的第一调整部,具有切口部25的部分,构成粗调成比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部,通过滑块3 接触于第一倾斜面23而限制滑块3的滑动范围的第一状态、和通过滑块3接触于切口部25的端部而限制滑块3的滑动范围的第二状态,通过使筒状构件围绕中心轴进行旋转而进行转换,由此由于兼有能够对突出长度进行微调的区域、和对突出长度进行粗调的区域,所以在使内视镜前端大幅弯曲而操作这样的情况下,即使由于在外筒探针12内与内筒探针11的摩擦使得在第一调整部23穿刺针1没有突出的情况下,通过使用粗调部,而能够使穿刺针1突出。 [0069] The inclined surface includes a first inclined surface 23 and the cutout portion 25 is inclined at a first angle, the first inclined surface portion 23 constituting the first adjustment portion having the above-described fine adjustment of the stroke length within a predetermined range, having a cutout portion 25 part constituting the coarse larger than the maximum stroke length of the second adjusting portion adjusting a first portion can be adjusted by the stroke length of the slider 3 in contact with the first inclined surface 23 to restrict the sliding range of the slider 3 a first state and a second state at the end portion of the cutout portion 25 of the sliding range of the slider 3 is restricted by contact of the slider 3, and converted by the cylindrical member is rotated around the central axis, whereby since both can be region of the projecting length fine tuning, and the length of the projection area of ​​the coarse, so deeply curved inner endoscope distal operate such a case, even if the probe 12 within the outer tube and the inner tube probe 11 of the friction such that in a first adjusting portion 23 does not protrude a puncture needle case, by using coarse portion, and the puncture needle 1 protrudes.

[0070] 还有,在滑块3位于基端侧的状态下,使处于第一状态的筒状构件围绕中心轴而旋转时,限制从第一状态向第二状态的转换,在滑块位于穿刺针侧的状态下,使处于第一状态的筒状构件围绕中心轴而旋转时,允许从第一状态向第二状态的转换,由此,通过限制从第一状态向第二状态的转换,能够防止穿刺针1从微调区域马上向大的行程区域移动的情况。 [0070] Further, in the state where the slider 3 is located on the proximal side of the cylindrical member in a first state when rotated around the central axis, to limit to a second state from a first state, the slider is located the state of the puncture needle side, the cylindrical member is in the first state is rotated around the central axis, allowing the conversion from a first state to a second state, whereby, by limiting the transition from the first state to the second state , the puncture needle can be prevented from a trimming area immediately to the large stroke area of ​​the mobile case.

[0071] 还有,筒状构件具有相对于包含中心轴的平面而沿中心轴倾斜的引导面,通过在使筒状体后退时,滑块沿着引导面而从第二状态向第一状态转换,从而操作人员不用特意, 就能够仅用容纳穿刺针1的操作而变更到第一调整部23,能够防止错误地在突出长度最大时进行使用。 [0071] Further, the cylindrical member having a center along the axis of the guide surface is inclined relative to the plane including the central axis, by the cylindrical body when retracted, the slider along the guide surface and from the second state to the first state conversion, so that the operator need not deliberately, it is possible to receive only the operation of the puncture needle 1 is changed to the first adjusting portion 23, it is possible to prevent erroneous maximum projecting length for use. [0072] 也可以作为如下结构的医疗用器具,突出长度显示部4,在筒状构件的侧面,具有沿着圆周方向标注了表示穿刺针1的突出长度的数值的刻度部8,对应于筒状构件的旋转位置而显示数值。 [0072] The tool can also be used, the protruding length of the display portion 4, the side surface of the cylindrical member, having a marked scale indicating the value of the protruding length portion of the puncture needle 8 of the circumferential direction, corresponding to the structure as a medical tube shaped member and the rotational position of the displayed value. 操作人员用手的动作就能够确认突出长度,所以能够防止以错误的突出长度进行穿刺,因此安全。 The operator can confirm the hand operation projection length, it is possible to prevent the erroneous puncture projecting length, and therefore safe.

[0073] 以下,按使用例说明本发明。 [0073] Hereinafter, the present invention is described using embodiments.

[0074] 本发明的医疗用器具的穿刺针1,为了安全以及保护穿刺性能,在使用前保持在外筒探针12前端的内腔内,如图3A所示,通过滑块3和窗口6固定位置,不会错误地使穿刺针1突出。 [0074] The medical instrument according to the present invention a puncture needle, in order to protect the safety and puncture resistance, holding at the distal end provided with the cavity 12 of the outer tube probe shown in Figure 3A, is fixed by the slider 3 and the window 6 position, the needle will not mistake the 1 outstanding. 在将穿刺针1保持在外筒探针12的内腔的状态下,由外筒探针12的前端部通过内视镜的钳口,而将外筒探针12前端引导向患部。 In the puncture needle cartridge holding state of the outer lumen 12 of the probe, the probe distal end portion by the outer cylinder 12 by the jaws of the endoscope, and the distal outer tube 12 to guide the probe to the diseased part. 在这里作为穿刺针1的突出准备而旋转突出长度调整握柄7,使行程调整机构9动作的同时,将显示在窗口6内的突出级别显示部8的显示设定为希望的突出长度级别。 Preparation herein as projecting the puncture needle 1 is rotated to adjust the protruding length of the handle 7, so that the operation of the stroke adjusting mechanism 9 at the same time, will be displayed in the window 6 protrudes level displayed on the display unit 8 for setting a desired level of projection length.

[0075] 在该状态下,穿刺针1没有突出,但在窗口6内,能看见着色成与筒状体2自身的颜色不同的颜色的突出状态显示部4,表示针处于能够突出的状态。 [0075] In this state, the puncture needle 1 is not projecting, but within the window 6, can see the projected state different colored cylindrical body 2 itself of the color of the color display unit 4, showing the needle is able to protrude. 在本实施例中如图3A〜图3G所示,突出长度级别在第一倾斜面23内是3〜5,在该范围内进行调整。 FIG 3A~ embodiment of the present embodiment shown in FIG. 3G, the projection length is 3 to 5 in the first level of the inclined surface 23, is adjusted within the range. 处于滑块3基端侧、而在穿刺针1没有突出的状态下滑块3与接触定位面15接触,为抑制行程调整机构9的动作而不向第二调整部M、25移动。 3 at the base end side of the slider, and the slider 3 positioned face contact with the contact projection 15 in the state without the puncture needle 1, the operation of the stroke adjusting mechanism 9 without inhibition, the second adjusting portion 25 moves to the M. 其成为避免穿刺针1的突出长度常为最大的第二调整部04、25)的误使用的安全装置。 Which avoids the protruding length of the puncture needle become constant maximum 1 second adjusting portion 04,25) of the safety device of misuse.

[0076] 若突出长度的调整结束,则将筒状体2向筐体5侧压入,使滑块3与能看到窗口6 内的滑块接触定位部10接触,并进行固定。 [0076] When adjusting the length of the protruding ends, the cylindrical body 2 to the side of the housing 5 is pressed into the slider 3 and the slider into contact with the positioning portion can be seen in the window 610 contacts, and fixed. 内筒探针11被压入筒状体2所压入的长度,穿刺针1在外筒探针12内腔内向前方前进,从外筒探针12前端仅突出穿刺针1设定的突出长度级别部分。 Protruding length of the inner tube level probe 11 is pressed into the two press-in length of the cylindrical body, the puncture needle 12 within the lumen of the outer tube 1 forward in the probe, the probe tip end 12 protrudes from the outer cylinder 1 only the puncture needle set section. 在这里,窗口6的突出状态显示部4变得看不见,而能看见筒状体2的颜色, 表示穿刺针1为突出状态。 Here, the window display portion 6 projecting state 4 becomes invisible, and can see the color of the cylindrical body 2, showing the state of the puncture needle 1 protrudes.

[0077] 将穿刺针1的突出状态用内视镜的监视器确认,确认实际的穿刺针1的突出长度。 [0077] The state of the puncture needle 1 protrudes with the endoscope monitor an acknowledgment of the actual length of protrusion of the puncture needle 1. 在判断出没有达到设定的突出长度、或者没有突出时而突出长度最大为佳的情况下,保持突出穿刺针1的状态而进一步操作突出长度调整握柄7,转换到第二调整部对、25。 In the case where it is determined that not reached the set protruding length, and sometimes does not protrude or protrudes preferably a maximum length of projecting the holding state of the puncture needle 1 projecting length adjusting operation further handle 7, to a second adjusting unit pair 25 . 在这里, 通过操作筒状体2而将穿刺针1向突出方向顶出,能够确实的使穿刺针1突出。 Here, by the operation of the cylindrical puncture needle 2 and the body 1 in the protruding direction, so that the puncture needle can be reliably protruding.

[0078] 而且,将突出的穿刺针1对患部进行穿刺,虽然未图示,但通过安装在筒状体2的末端的注射器而将药剂等注入患部。 [0078] Further, the one pair of projecting the puncture needle punctures the affected area, although not shown, installed in the cylindrical end of the syringe body 2 and the other drug injection affected. 若药液的注入结束,则将筒状体2向从筐体5拔出的方向操作,并将穿刺针1容纳在外筒探针12内腔内。 If the chemical liquid injection ends, the cylindrical body 2 in the direction of the operating body pulled out of the casing 5, the puncture needle and the inner lumen 12 of the outer cylinder 1 accommodating the probe. 这时,即使通过第二调整部M、25而使穿刺针1突出,通过该容纳操作而使滑块3按压引导面14而使行程调整机构9动作,转移到第一倾斜面23,因此即使在继续使穿刺针1突出而进行穿刺操作的情况下,也能够避免错误地保持在第二调整部对、25而突出的情况。 In this case, even if the second adjusting portion M, 25 protruding the puncture needle, the guide surface 14 of the slider 3 so that the pressing operation of the stroke adjusting mechanism 9 by receiving the operation proceeds to the first inclined surface 23, even if in the case of continuing the protruding puncture needle puncturing operation is performed, it is possible to avoid errors held in the second adjustment portion pair, the case 25 protrudes.

[0079] 全部的穿刺以及药液注入结束,则将本发明从内视镜拔除,则手上的工作结束。 [0079] All liquid puncture and injection ends, the present invention is the removal from the endoscope, the end of the task at hand.

[0080] 本发明的医疗用器具,具有穿刺针的突出长度通过操作突出长度调整握柄而能够容易地调整、即使在探针施加了弯曲时穿刺针也能够确实突出的装置,还有,通过筐体上的窗口内的显示而能够容易的确认调整结果,进而也能够容易的确认穿刺针的突出状态,所以能够将操作性的提高以及操作错误带来的问题防患于未然,在内视镜治疗的药液注入方面广泛应用。 [0080] The medical instrument according to the present invention, having a puncture needle projection length can be easily adjusted by adjusting the length of the operating grip protrudes, even when the probe is applied to the puncture needle can be reliably curved projection apparatus, as well as by displayed in the window on the casing and can be easy to verify the adjustment, and thus can be easily confirm the state of the puncture needle projection, it is possible to improve the operability problems caused by operating errors as well as preventive measures, including visual injecting liquid mirror aspects of the treatment of a wide range of applications.

Claims (8)

  1. 1. 一种医疗用器具,其特征在于,具有: 在前端安装有穿刺针的内筒探针;将上述内筒探针的至少一部分以能够进退的方式进行容纳的外筒探针; 固定设置在上述内筒探针的后端的筒状体; 将上述筒状体以能够进退的方式进行容纳的筐体; 以可变的方式调整上述筒状体的行程长度的调整机构;在使上述筒状体后退时,上述穿刺针被容纳在上述外筒探针中,在使上述筒状体前进时,上述穿刺针从上述外筒探针突出,通过由上述调整机构进行的上述行程长度的调整,而以可变的方式调整上述穿刺针的突出量,上述筒状体以及上述筐体的一方上设置有滑块,另一方上设置有引导滑块的引导槽, 通过上述滑块的滑动而上述筒状体进行进退,上述调整机构构成为以可变的方式限制上述滑块向着上述穿刺针侧的滑动,并且,上述调整机构具有与上述筐体相 1. A medical instrument, comprising: a distal end attached to the inner tube in the puncture needle probe; and to advance and retreat of the inner tube at least part of the probe is accommodated in the outer cylinder probe; fixed in the rear end of the cylindrical body of the inner cylinder of the probe; and the cylindrical body to advance and retreat manner accommodated housing; variably adjusting mechanism adjusting the stroke length of the cylindrical body; in the cylinder so that the when the shaped body is retracted, the puncture needle is accommodated in the outer cylinder of the probe, so that the cylindrical body in advance when the puncture needle protrudes from the outer cylinder probe, by adjusting the length of the stroke performed by the adjustment means , provided on one of the projecting amount variably adjusting the puncture needle, the tubular housing body and the slider body, the slider guide provided on the other of the guide groove, and by sliding the slider advancing and retracting the tubular body, the adjustment mechanism is configured to variably limit the slider sliding toward the puncture needle side, and the adjusting mechanism has a housing with the above-described 的中心轴,是配置在上述筐体的后端侧的筒状构件,上述筒状构件具有相对于与上述中心轴成直角的面而沿着以上述中心轴为中心的圆周方向倾斜的倾斜面,通过上述滑块接触于上述倾斜面而限制上述滑块的滑动范围,并且通过使上述筒状构件围绕上述中心轴进行旋转而调整接触位置,上述倾斜面包括:以第一角度倾斜的第一倾斜面;切口部或者以大于上述第一角度的第二角度倾斜的第二倾斜面;上述第二倾斜面连续于上述第一倾斜面而设置,具有第一倾斜面的部分构成在规定范围内微调上述行程长度的第一调整部, 具有上述切口部或者上述第二倾斜面的部分构成粗调成比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部,通过上述滑块接触于第一倾斜面而限制上述滑块的上述滑动范围的第一状态、和通过上述滑块接触于上 Central axis, the cylindrical member is disposed at a rear end side of the housing, said member having a cylindrical surface with respect to the central axis at right angles to the above-described inclined along a central axis of the inclined surface in the circumferential direction the slider into contact with the inclined surface to limit the sliding range of the slider, and is adjusted so that the contact position by the cylindrical member is rotated about the central axis by the inclined surface comprising: a first inclined angle of the first inclined surface; cutout portion or the second inclined surface at a second angle greater than the first angle of inclination; and the second inclined surface continuous with the first inclined surface is provided, having a first portion constituting the inclined surface within a predetermined range the above-described first adjustment section trim length of travel, having a portion of the cutout portion or the second inclined surface constituting the second adjusting portion larger than the maximum length of stroke can be adjusted by the first adjustment portion of the length of the stroke into a coarse adjustment, a first state in contact with the sliding range of the slider is restricted by the first inclined surface of the slider, and the slider by the contact 切口部的端部或者上述第二倾斜面而限制上述滑块的上述滑动范围的第二状态,是通过使上述筒状构件围绕上述中心轴进行旋转而进行转换的。 An end portion of the notch portion or the second state of the sliding range of the second inclined surface of the slider is limited, the conversion is performed by allowing the cylindrical member to rotate about said central axis.
  2. 2.如权利要求1所记载的医疗用器具,其特征在于,上述调整机构包括: 在规定范围内对上述行程长度进行微调的第一调整部;粗调成比由第一调整部能够调整的行程长度的最大值大的行程长度的第二调整部。 2. The medical a tool according to claim, wherein said adjusting means includes: a first adjusting unit of the above-described trim run length within a predetermined range; coarse than the first adjusting portion can be adjusted large maximum stroke length of the second portion of the adjustment of the stroke length.
  3. 3.如权利要求1所记载的医疗用器具,其特征在于,上述调整机构具有在上述滑块向上述穿刺针侧滑动时与上述滑块接触而限制上述滑块的滑动范围的接触面,该医疗用器具能够调整上述滑块的滑动方向上的上述接触面的位置。 3. The medical a tool according to claim, wherein said adjusting means having a contact surface and limit said slider when said slider slides to the side in contact with the puncture needle sliding range of the slider, which medical possible to adjust the position of the contact surface in the sliding direction of the slider with a tool.
  4. 4.如权利要求1所记载的医疗用器具,其特征在于,在上述滑块位于基端侧的状态下,使处于上述第一状态的上述筒状构件围绕上述中心轴而旋转时,限制从第一状态向第二状态的转换,在上述滑块位于上述穿刺针侧的状态下,使处于上述第一状态的上述筒状构件围绕上述中心轴而旋转时,允许从第一状态向第二状态的转换。 4. The medical a tool according to claim, characterized in that, in a state where the slider is located in the base end side, so that the cylindrical member is in the first state of rotation about said central axis, from the restrictions a first state to a second state transition in a state where the slider located at the side of the puncture needle, so that the cylindrical member is in said first state is rotated around the central axis, the second from the first state to allow the transition state.
  5. 5.如权利要求4所记载的医疗用器具,其特征在于,上述筒状构件具有对应于第二调整部的位置而设置的接触定位面,在使处于上述第一状态的上述筒状构件围绕上述中心轴而旋转时,上述滑块与上述接触定位面接触而限制向第二状态的转换。 5. The medical four appliance according to claim, wherein said tubular member has a contact surface positioned at a position corresponding to the second adjustment portion is provided in the cylindrical member so that the first state is about when the central shaft is rotated, the slider to limit the conversion to the second state in contact with the contact positioning surface.
  6. 6.如权利要求4所记载的医疗用器具,其特征在于,上述筒状构件具有相对于包含上述中心轴的平面而沿上述中心轴倾斜的引导面, 在使上述筒状体后退时,上述滑块沿着上述引导面从第二状态向第一状态进行转换。 6. The medical four appliance according to claim, wherein said cylindrical member has a plane containing the central axis with respect to the guide surface along the center axis is inclined, so that the cylindrical member in the retracted when the converting a first state to slide along the guide surface from the second state.
  7. 7.如权利要求1所记载的医疗用器具,其特征在于,具有显示上述穿刺针的突出长度的突出长度显示部。 7. The medical a tool according to claim, characterized in that the protruding length having a display length of the puncture needle projection display unit.
  8. 8.如权利要求7所记载的医疗用器具,其特征在于,上述突出长度显示部,在上述筒状构件的侧面具有沿圆周方向标注了表示上述穿刺针的突出长度的数值的刻度部,与上述筒状构件的旋转位置对应而显示上述数值。 8. The medical 7 appliance according to claim, characterized in that the projection length of the display unit, the side surface of the cylindrical member having a circumferential direction denoted by the value of the scale portion indicates the puncture needle projection length, and the rotational position of the cylindrical member and displays the corresponding value.
CN 200610008611 2004-08-31 2006-02-20 Medical implement CN1824339B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2005-043494 2005-02-21
JP2005043494A JP4650020B2 (en) 2004-08-31 2005-02-21 Medical instrument

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5944700A (en) 1997-09-26 1999-08-31 Becton, Dickinson And Company Adjustable injection length pen needle
CN1596138A (en) 2001-11-30 2005-03-16 诺沃挪第克公司 Safety needle assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5944700A (en) 1997-09-26 1999-08-31 Becton, Dickinson And Company Adjustable injection length pen needle
CN1596138A (en) 2001-11-30 2005-03-16 诺沃挪第克公司 Safety needle assembly

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JP特开2001-299909A 2001.10.30
JP特开2004-290367A 2004.10.21

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