TW202100087A - Overtube assembly - Google Patents

Overtube assembly Download PDF

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Publication number
TW202100087A
TW202100087A TW108121763A TW108121763A TW202100087A TW 202100087 A TW202100087 A TW 202100087A TW 108121763 A TW108121763 A TW 108121763A TW 108121763 A TW108121763 A TW 108121763A TW 202100087 A TW202100087 A TW 202100087A
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TW
Taiwan
Prior art keywords
outer sleeve
aforementioned
locking
sleeve assembly
mouthpiece
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TW108121763A
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Chinese (zh)
Inventor
炭山和毅
樺俊介
脇田昭治
田中寬人
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學校法人慈惠大學
日商村中醫療器股份有限公司
日商奧村股份有限公司
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Application filed by 學校法人慈惠大學, 日商村中醫療器股份有限公司, 日商奧村股份有限公司 filed Critical 學校法人慈惠大學
Priority to TW108121763A priority Critical patent/TW202100087A/en
Publication of TW202100087A publication Critical patent/TW202100087A/en

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Abstract

An outside tube assembly has an outside tube capable of adjusting length. The outside tube assembly includes an outside tube and a mouth tube. The outside tube has a plurality of recesses (e.g., grooves) on its outer periphery. The mouth tube has a stuck part (e.g., a protrusion or a ridge) locked in the recesses. The mouth tube can be moved between a stuck position and a non-sticking position, wherein the stuck part is a positon for the stuck part stuck in the recesses. The non-sticking position is a position for the stuck part that does not stick in the recesses.

Description

外套管組件Outer casing assembly

本發明是有關於一種外套管組件。The invention relates to an outer sleeve assembly.

以往,例如作為內視鏡用的外套管組件,已知有下述外套管組件,該外套管組件具備有:外套管,被內視鏡內插;接合器,設置於外套管的基端;及接口管,將外套管相對於受驗者固定(例如,參照專利文獻1)。In the past, for example, as an outer sleeve assembly for an endoscope, the following outer sleeve assembly is known. The outer sleeve assembly includes: an outer sleeve, which is inserted into the endoscope; and an adapter, which is provided at the base end of the outer sleeve; And the mouthpiece, which fixes the overtube to the subject (for example, refer to Patent Document 1).

又,作為醫療用管,已知有蛇腹管狀的管(例如,參照專利文獻2)。In addition, as a medical tube, a bellows tube is known (for example, refer to Patent Document 2).

然而,專利文獻1的外套管,因於塑膠管內藏金屬線圈進行補強,很難在醫療現場切斷外套管以調整為適當長度。因此,有必要配合各種體型的受驗者,準備不同長度的複數種外套管。However, in the outer tube of Patent Document 1, because the plastic tube contains a metal coil for reinforcement, it is difficult to cut the outer tube to adjust to an appropriate length in a medical field. Therefore, it is necessary to prepare multiple outer sleeves of different lengths to suit subjects of various sizes.

專利文獻2的醫療用管,只不過是波紋管。又,專利文獻2並沒有揭露或教示將蛇腹管切斷以調整長度。 先前技術文獻 專利文獻The medical tube of Patent Document 2 is nothing but a corrugated tube. Furthermore, Patent Document 2 does not disclose or teach cutting the bellows tube to adjust the length. Prior art literature Patent literature

專利文獻1:日本專利特開2008-220794號公報。專利文獻2:日本專利特開2014-113179號公報。Patent Document 1: Japanese Patent Laid-Open No. 2008-220794. Patent Document 2: Japanese Patent Laid-Open No. 2014-113179.

發明概要 發明欲解決之課題 本發明之課題在於提供一種可調整從接口管至管前端之長度的外套管組件。 用以解決課題之手段Summary of the invention Problems to be solved by the invention The subject of the present invention is to provide an outer sleeve assembly that can adjust the length from the mouthpiece to the front end of the tube. Means to solve the problem

本發明實施形態的外套管組件(1)具備: 外套管(2),呈中空筒狀,具有可撓性,並於兩端具有開口;及 接口管(3),沿該外套管(2)的中心軸方向可移動地裝設於前述外套管(2)的外周, 前述外套管(2),具有複數個凹部(5),該複數個凹部(5) 沿該外套管(2)的中心軸方向隔開預定的間隔而設置於該外套管(2)的外周, 前述接口管(3),具有卡止部(19),該卡止部(19)被卡止於前述外套管(2)的前述凹部(5)。The outer sleeve assembly (1) of the embodiment of the present invention has: The outer sleeve (2) is in the shape of a hollow cylinder, has flexibility, and has openings at both ends; and The mouthpiece (3) is movably installed on the outer periphery of the aforementioned outer sleeve (2) along the central axis of the outer sleeve (2), The outer sleeve (2) has a plurality of recesses (5), and the plurality of recesses (5) are arranged on the outer periphery of the outer sleeve (2) at predetermined intervals along the central axis direction of the outer sleeve (2), The mouthpiece (3) has a locking portion (19), and the locking portion (19) is locked in the concave portion (5) of the outer sleeve (2).

根據如此構成之實施形態的外套管組件(1),藉由選擇供接口管(3)的卡止部(19)卡止的凹部(5),改變接口管(3)之相對於外套管(2)的位置,可調整從接口管(3)到外套管(2)前端的距離。因此,沒必要將不同長度的複數種外套管作為庫存保管。According to the overtube assembly (1) of the embodiment thus constituted, by selecting the recess (5) for the locking portion (19) of the mouthpiece (3) to be locked, the mouthpiece (3) relative to the overtube ( The position of 2) can be adjusted from the interface tube (3) to the front end of the outer tube (2). Therefore, there is no need to keep multiple outer tubes of different lengths as inventory.

用以實施發明之形態 依照附件圖面說明本發明之外套管組件的實施形態。在以下說明,將外套管向受驗者(患者)插入的端部稱為「末端」,其相反側的端部稱為「基端」,將外套管從其基端側面向末端側看時,將表示外套管左右的側分別稱為「左側」、「右側」。The form used to implement the invention The embodiment of the sleeve assembly outside the present invention will be described according to the attached drawings. In the following description, the end of the overtube inserted into the subject (patient) is called the "end", and the end on the opposite side is called the "base end". When the overtube is viewed from the base end side to the end side , And refer to the left and right sides of the outer sleeve as "left" and "right" respectively.

顯示於圖1的本實施形態之內視鏡用外套管組件1,大致具有外套管2、接口管3、接合器4。The overtube assembly 1 for an endoscope of this embodiment shown in FIG. 1 roughly includes an overtube 2, a mouthpiece 3, and a adaptor 4.

外套管2是將合成樹脂材料(例如:聚乙烯)成形加工成兩端具有開口的中空圓筒狀,且其構造與厚度被決定為可輕易地用小力彎曲。The outer sleeve 2 is formed by forming a synthetic resin material (for example: polyethylene) into a hollow cylindrical shape with openings at both ends, and its structure and thickness are determined to be easily bent with a small force.

例如,如圖3所示,本實施形態之外套管2為可撓性的軟管,該可撓性的軟管是將小徑部與大徑部在中心軸方向上交替且連續地配置。具體而言,於外套管2的外周面,在外套管2的長邊方向(外套管的中心軸方向)上交替地形成有:外側環狀溝部(凹部)5,向徑方向內側凹陷;及外側環狀凸部6,位於相鄰的外側環狀溝部5之間並向徑方向外側突出。如圖所示,外側環狀溝部5的寬度(具體而言,構成溝部且在軸方向上相對向的一對側面的距離W),是從溝部的底往徑方向外側逐漸變大。For example, as shown in FIG. 3, the sleeve 2 outside this embodiment is a flexible hose in which small diameter parts and large diameter parts are alternately and continuously arranged in the central axis direction. Specifically, on the outer peripheral surface of the overtube 2, alternately formed in the longitudinal direction of the overtube 2 (the direction of the central axis of the overtube): outer annular grooves (recesses) 5, recessed radially inward; and The outer annular convex portion 6 is located between adjacent outer annular groove portions 5 and protrudes radially outward. As shown in the figure, the width of the outer annular groove portion 5 (specifically, the distance W between a pair of side surfaces that constitute the groove portion and face each other in the axial direction) gradually increases from the bottom of the groove portion toward the outside in the radial direction.

於外套管2的內周面,在外套管2的中心軸方向上隔著預定的間隔形成有:內側環狀溝部7,向徑方向外側凹陷;及內側環狀凸部8,位於相鄰的內側環狀溝部7之間並向徑方向內側突出。On the inner peripheral surface of the outer tube 2, at predetermined intervals in the central axis direction of the outer tube 2 are formed: an inner annular groove 7 recessed radially outward; and an inner annular protrusion 8 located adjacent The inner annular grooves 7 protrude radially inwardly between them.

在實施形態中,外側環狀溝部5及內側環狀凸部8,彼此之間隔開一定的距離且相對向,外側環狀凸部6及內側環狀溝部7,彼此之間隔開一定的距離且相對向,外套管2其全體被給予一定的厚度t。In the embodiment, the outer annular groove portion 5 and the inner annular convex portion 8 are spaced apart and opposed to each other by a certain distance, and the outer annular convex portion 6 and the inner annular groove portion 7 are separated by a certain distance from each other. In the opposite direction, the entire outer sleeve 2 is given a certain thickness t.

外套管2的溝部以及凸部的尺寸與厚度是以下述方式被決定:可將此外套管2輕易地用小力彎曲,又,即使被認定為在使用時會作用於外套管2的力發生作用也不會被壓垮或不會被彎折並且於內側保持穩定的圓筒通道。因此,對外套管2從其基端插入的內視鏡,可用小力推進至外套管2的末端。當然,實施形態的外套管2,是將大徑部與小徑部交替地連續設置的軟管,因此與沒有那樣的大徑部與小徑部的具有固定徑的管相比對彎曲的剛性較大。因此,即使管的厚度相同,實施形態的軟管,在使用時(插管時)即使受到出乎預料的大彎曲力作用也不會如固定徑的管輕易地被彎曲與被壓垮,而可確保穩定的內視鏡插入空間。The size and thickness of the grooves and protrusions of the outer sleeve 2 are determined in the following way: the outer sleeve 2 can be easily bent with a small force, and even if it is deemed that the force acting on the outer sleeve 2 occurs during use The function will not be crushed or bent and maintain a stable cylinder channel inside. Therefore, the endoscope into which the outer sleeve 2 is inserted from its base end can be pushed to the end of the outer sleeve 2 with a small force. Of course, the outer tube 2 of the embodiment is a hose in which large-diameter parts and small-diameter parts are alternately arranged continuously. Therefore, it is more rigid to bending than a tube with a fixed diameter without such large-diameter parts and small-diameter parts. Larger. Therefore, even if the thickness of the tube is the same, the hose of the embodiment will not be bent and crushed as easily as a fixed diameter tube even if it is subjected to an unexpectedly large bending force during use (during intubation). A stable space for inserting the endoscope can be ensured.

外套管2的各部分的具體尺寸如下。 外套管2的直徑D:15.0mm~20.0mm 外套管2的厚度t:0.3mm~1.0mm 外側環狀凸部6的齒距尺寸P:2.0mm~4.0mm 外側環狀凸部6的寬度尺寸W1:1.0mm~2.5mm 外側環狀溝部5的寬度尺寸W2:1.0mm~2.5mm 外側環狀凸部6的突出尺寸H:1.2mm~2.0mm 在此情況下,決定各部分尺寸時的優先順序為上述記載的順序。對於彎曲力作用於管時的壓垮的強度,截面的直徑D與管的厚度t有很大的影響。接著,以外側環狀凸部的齒距尺寸P與凸部的寬度尺寸W1、溝部的寬度尺寸W2、突出尺寸H的順序,影響強度與彎曲的難易度。The specific dimensions of each part of the outer sleeve 2 are as follows. Diameter D of outer sleeve 2: 15.0mm~20.0mm The thickness of the outer casing 2 t: 0.3mm~1.0mm Pitch size P of the outer annular convex part 6: 2.0mm~4.0mm The width dimension W1 of the outer annular convex part 6: 1.0mm~2.5mm The width dimension W2 of the outer annular groove 5: 1.0mm~2.5mm Projection size H of outer annular convex part 6: 1.2mm~2.0mm In this case, the order of priority when determining the size of each part is the order described above. For the strength of crushing when bending force acts on the tube, the diameter D of the cross section and the thickness t of the tube have a great influence. Next, in the order of the pitch dimension P of the outer annular convex portion, the width dimension W1 of the convex portion, the width dimension W2 of the groove portion, and the protrusion dimension H, the strength and the ease of bending are affected.

藉由如此地決定外套管2的各部分的尺寸,可將外套管2本身輕量化。又,因外側環狀溝部5與外側環狀凸部6交替地連續配置,可使剛性提升,且即使使外套管2彎曲也能維持圓筒形狀且不會壓垮內部空間。如此,外套管2是輕量且容易彎曲的構成,因此可順暢地插入身體(例如:從口腔往食道等)內。By determining the size of each part of the outer tube 2 in this way, the outer tube 2 itself can be lightened. In addition, since the outer annular groove portions 5 and the outer annular convex portions 6 are alternately and continuously arranged, rigidity can be improved, and even if the outer tube 2 is bent, the cylindrical shape can be maintained without crushing the internal space. In this way, the overtube 2 has a lightweight and easily bent structure, and therefore can be smoothly inserted into the body (for example, from the oral cavity to the esophagus).

如圖所示,至少外側環部凸部6的在圓周方向延伸的角部,宜被平滑地削角。藉此,外套管2從受驗者的口被插入時,不會傷及喉頭或食道。As shown in the figure, at least the corners of the outer ring convex portion 6 extending in the circumferential direction should be smoothly chamfered. Thereby, when the overtube 2 is inserted from the mouth of the subject, the throat or esophagus will not be injured.

在實施形態中,雖然將外側環狀溝部5與內側環狀凸部8的表面,特別是出現於圖3的內側與外側的表面形狀做成大致托架形狀,但也可將外側環狀溝部5、外側環狀凸部6、內側環狀溝部7、以及內側環狀凸部8的至少1個表面做成大致圓形、大致U形、或大致三角形。In the embodiment, although the surfaces of the outer annular groove portion 5 and the inner annular convex portion 8, particularly the inner and outer surface shapes appearing in FIG. 3, are made into a substantially bracket shape, the outer annular groove portion may be 5. At least one surface of the outer annular convex portion 6, the inner annular groove portion 7, and the inner annular convex portion 8 is formed into a substantially circular shape, a substantially U-shape, or a substantially triangular shape.

回到圖1、2,在實施形態中,外套管2的末端固定有筒狀外殼9。構成外殼9的材料為較外套管2軟的材料,例如宜為矽橡膠。當然,外殼9也可以由矽橡膠以外的材料(例如:較矽橡膠硬的聚氯乙烯)來形成。在此情況下,藉由縮小外殼9的厚度,可確保外殼9所需要的柔軟度。Returning to FIGS. 1 and 2, in the embodiment, a cylindrical casing 9 is fixed to the end of the outer tube 2. The material constituting the outer shell 9 is a material softer than the outer sleeve 2, for example, silicon rubber is preferable. Of course, the housing 9 can also be formed of materials other than silicon rubber (for example, polyvinyl chloride, which is harder than silicon rubber). In this case, by reducing the thickness of the housing 9, the required flexibility of the housing 9 can be ensured.

在實施形態中,如圖2所示,外殼末端部分9a的外周,形成為越朝向末端外徑漸漸變得越小的錐形面。於外殼9的內周面,交替形成有對應外套管2的外側環狀溝部5與外側環狀凸部6的形狀的小徑環狀凸部9b與大徑環狀溝部9c,藉由將外殼9的小徑環狀凸部9b與大徑環狀溝部9c各別嵌入於外套管2的外側環狀溝部5與外側環狀凸部6,以將外殼9固定於外套管2。In the embodiment, as shown in FIG. 2, the outer periphery of the housing end portion 9a is formed as a tapered surface that gradually becomes smaller in outer diameter toward the end. On the inner peripheral surface of the housing 9, there are alternately formed small-diameter annular convex portions 9b and large-diameter annular groove portions 9c corresponding to the shape of the outer annular groove 5 and the outer annular convex portion 6 of the outer sleeve 2, and the outer annular groove 9c The small-diameter annular convex portion 9b and the large-diameter annular groove 9c of 9 are respectively fitted into the outer annular groove 5 and the outer annular convex portion 6 of the outer tube 2 to fix the casing 9 to the outer tube 2.

接口管3由較外套管2硬質的合成樹脂材料(例如:ABS樹脂)來形成,並如圖2以及圖4所示,具有中空筒狀的插入筒部10。於插入筒部10安裝有中空筒狀的墊構件30。墊構件30由胺基甲酸酯、矽橡膠等的軟性材料所構成,並以藉由形成於插入筒部10的前端部分的凸緣部10D固定的狀態插入受驗者的口中。藉由使墊構件30介於其中,受驗者較容易咬住。The mouthpiece 3 is formed of a synthetic resin material (for example, ABS resin) harder than the outer tube 2, and has a hollow cylindrical insertion tube portion 10 as shown in FIGS. 2 and 4. A hollow cylindrical cushion member 30 is attached to the insertion tube 10. The cushion member 30 is made of a soft material such as urethane or silicone rubber, and is inserted into the subject's mouth in a state of being fixed by a flange portion 10D formed at the tip portion of the insertion tube portion 10. With the cushion member 30 interposed therebetween, it is easier for the subject to bite.

插入筒部10具有供外套管2插通的第1筒狀面10A。第1筒狀面10A也就是插入筒部10的通道截面形狀並非為完美的圓,而具有左右方向較上下方向展開的形狀。即,如圖8所示,第1筒狀面10A由小徑圓弧面10a、及大徑圓弧面10b所構成,該小徑圓弧面10a構成為上下部分且接近於外套管2;該大徑圓弧面10b構成為左右部分且內徑尺寸較小徑圓弧面10a大。又,插入筒部10的通道截面積僅稍微大於外套管2的通道截面積。The insertion cylindrical portion 10 has a first cylindrical surface 10A through which the overtube 2 is inserted. The first cylindrical surface 10A, that is, the cross-sectional shape of the passage through which the cylindrical portion 10 is inserted, is not a perfect circle, but has a shape that expands in the left-right direction relative to the up-down direction. That is, as shown in FIG. 8, the first cylindrical surface 10A is composed of a small-diameter arc surface 10a and a large-diameter arc surface 10b, and the small-diameter arc surface 10a is configured as an upper and lower part and is close to the outer sleeve 2; The large-diameter circular arc surface 10b is configured as a left and right portion, and the inner diameter size is small and the diameter circular arc surface 10a is large. In addition, the cross-sectional area of the passage of the insertion tube 10 is only slightly larger than the cross-sectional area of the passage of the outer sleeve 2.

在插入筒部10的基端側端部固定有面板(Face plate)(凸緣)11。面板11沿插入筒部10的基端側端部的全周,從該基端部往徑方向外側展開。在實施形態中,面板11相較於上下方向在左右方向上展開得更大。面板11的左右凸緣部分向插入筒部10的末端側緩緩地彎曲,受驗者將安裝有墊構件30的插入筒部10咬在口中的狀態下,左右凸緣部分形成為沿著受驗者的臉頰。於面板11的左右凸緣部分形成有口腔護理用的開口11a,又於左右凸緣部分的外側端部一體地形成有用於卡止固定用繩等的鉤14。A face plate (flange) 11 is fixed to the proximal end of the insertion cylinder 10. The panel 11 extends along the entire circumference of the proximal end of the insertion tube 10 and expands outward in the radial direction from the proximal end. In the embodiment, the panel 11 is expanded more in the left-right direction than the up-down direction. The left and right flanges of the panel 11 are gently bent toward the distal end of the insertion tube 10, and the subject bites the insertion tube 10 with the cushion member 30 in the mouth. The left and right flanges are formed along the receiving tube. The cheek of the examiner. The left and right flange portions of the panel 11 are formed with openings 11a for oral care, and the outer ends of the left and right flange portions are integrally formed with hooks 14 for locking fixing cords and the like.

於面板11的基端側表面(與連結有插入筒部10的面相反側的表面),一體地固定有托座12。在實施形態中,托座12具有從面板11往基端側延伸的一對凸緣15。在實施形態中,一對凸緣15由在上下方向上隔開預定的間隔而設置的上部凸緣及下部凸緣所構成。如圖4所示,上部凸緣的下表面(下部凸緣對向面)與下部凸緣的上表面(上部凸緣對向面)沿著第2筒狀面10B形成,該第2筒狀面10B將插入筒部10的第1筒狀面10A往基端側延長。此些第1筒狀面10A與第2筒狀面10B(正確地說是上部凸緣部的下表面與下部凸緣部的上表面),形成供外套管2插通的筒狀通道10C。The bracket 12 is integrally fixed to the base end side surface of the panel 11 (the surface on the opposite side to the surface to which the insertion tube 10 is connected). In the embodiment, the bracket 12 has a pair of flanges 15 extending from the panel 11 to the base end side. In the embodiment, the pair of flanges 15 are composed of an upper flange and a lower flange provided at a predetermined interval in the vertical direction. As shown in Figure 4, the lower surface of the upper flange (the lower flange facing surface) and the upper surface of the lower flange (the upper flange facing surface) are formed along the second cylindrical surface 10B. The surface 10B extends the first cylindrical surface 10A inserted into the cylindrical portion 10 toward the proximal side. These first cylindrical surface 10A and second cylindrical surface 10B (to be precise, the lower surface of the upper flange portion and the upper surface of the lower flange portion) form a cylindrical passage 10C through which the outer sleeve 2 is inserted.

如圖4所示,於上部凸緣的圓筒下表面與下部凸緣的圓筒上表面的圓周方向中央,形成有溝狀的定位部(凹部)16,該定位部(凹部)16從上部凸緣與下部凸緣的基端側端部往末端側延伸。又,將上部凸緣的左側與右側的緣部分別往外側延伸而形成上部軸承凸緣17,同樣地,將下部凸緣的左側與右側的緣部分別往外側延伸而形成下部軸承凸緣17。As shown in Fig. 4, a groove-shaped positioning portion (recessed portion) 16 is formed in the circumferential center of the lower surface of the cylinder of the upper flange and the upper surface of the cylinder of the lower flange. The base end side ends of the flange and the lower flange extend toward the distal end side. In addition, the left and right edges of the upper flange are respectively extended outward to form the upper bearing flange 17, and similarly, the left and right edges of the lower flange are respectively extended outward to form the lower bearing flange 17 .

在上部與下部的軸承凸緣17,各別形成有軸承孔17a,該軸承孔17a是沿著垂直於筒狀通道10C的中心軸而在上下方向上延伸的軸(圖未示)形成。在上部與下部的軸承凸緣17之間,配置有左右的鎖板(旋轉構件)13。各鎖板13具有末端側部分18a與基端側部分18b。以兩鎖板13的末端側部分18a與基端側部分18b、及上下凸緣15的內面,構成與筒狀通道10C大致相同的通道截面形狀的內側筒狀面,或,比其稍微較大的內側筒狀面。末端側部分18a的內面與基端側部分18b的內面並非整齊排列,基端側部分18b的內面從末端側圓筒內面的基端往徑方向外側傾斜地延伸。在各鎖板13的中的末端側部分18a的內面,形成有卡止部(第1卡止部)19。在實施形態中,卡止部19由大致對應於外套管2的外側環狀溝部5之形狀的凸條所構成。取而代之,卡止部19也可以是一個凸起或複數個凸起。如圖4所示,在各鎖板13也可設置複數個凸條。凸條或凸起的間隔,宜設定為外側環狀溝部5的齒距或其整數倍。The upper and lower bearing flanges 17 are respectively formed with bearing holes 17a, and the bearing holes 17a are formed along an axis (not shown) extending in the vertical direction perpendicular to the central axis of the cylindrical passage 10C. Between the upper and lower bearing flanges 17, left and right lock plates (rotating members) 13 are arranged. Each lock plate 13 has an end side portion 18a and a base end side portion 18b. The end side portion 18a and the base end side portion 18b of the two lock plates 13 and the inner surfaces of the upper and lower flanges 15 constitute an inner cylindrical surface having approximately the same channel cross-sectional shape as the cylindrical channel 10C, or slightly larger Large inner cylindrical surface. The inner surface of the distal end portion 18a and the inner surface of the proximal portion 18b are not aligned neatly, and the inner surface of the proximal portion 18b extends obliquely outward in the radial direction from the proximal end of the distal cylindrical inner surface. A locking portion (first locking portion) 19 is formed on the inner surface of the distal end side portion 18a of each lock plate 13. In the embodiment, the locking portion 19 is constituted by a ridge substantially corresponding to the shape of the outer annular groove 5 of the overtube 2. Instead, the locking portion 19 may also be one protrusion or a plurality of protrusions. As shown in FIG. 4, a plurality of protruding bars may be provided on each lock plate 13. The interval between the protrusions or protrusions is preferably set to the tooth pitch of the outer annular groove 5 or an integer multiple thereof.

末端側部分18a與基端側部18b的高度(上下方向的尺寸),大致等於上部軸承凸緣17與下部軸承凸緣17的距離。在末端側部分18a與基端側部分18b的邊界附近的上下緣部,形成有從該處各別往上下方向突出的軸部(轉軸)20。因此,左右的鎖板13,以將軸部20插入上下的軸承孔17a的狀態下,配置於上部與下部軸承凸緣17之間,並在卡止位置(圖4、7所示位置)與非卡止位置(圖未示)之間搖動,該卡止位置是卡止部19進入於第2筒狀面10B的內側的位置;該非卡止位置是卡止部19退避至第2筒狀面10B的外側的位置。The height (the vertical dimension) of the distal end side portion 18a and the base end side portion 18b is substantially equal to the distance between the upper bearing flange 17 and the lower bearing flange 17. In the upper and lower edge portions near the boundary between the distal end portion 18a and the proximal end portion 18b, shaft portions (rotating shafts) 20 respectively protruding in the up and down direction are formed therefrom. Therefore, the left and right lock plates 13 are arranged between the upper and lower bearing flanges 17 with the shaft portion 20 inserted into the upper and lower bearing holes 17a, and are at the locking position (position shown in Figures 4 and 7) and Shake between non-locking positions (not shown), the locking position is the position where the locking portion 19 enters the inner side of the second cylindrical surface 10B; the non-locking position is the locking portion 19 retracted to the second cylindrical surface The position on the outside of the surface 10B.

如圖1所示,接合器4可裝卸地被安裝在外套管2的基端。如圖5所示,接合器4由較軟的合成樹脂材料(例如:矽橡膠)的筒體構成。在實施形態中,接合器4在末端側具有圓筒部21。圓筒部21具有:內徑,與外套管2的外徑大小大致相同;及外徑,與接口管3的基端側的第2筒狀面10B的內徑大小大致相同。As shown in FIG. 1, the adapter 4 is detachably mounted on the base end of the outer sleeve 2. As shown in FIG. 5, the adapter 4 is made of a cylinder made of a relatively soft synthetic resin material (for example, silicone rubber). In the embodiment, the adapter 4 has a cylindrical portion 21 on the tip side. The cylindrical portion 21 has an inner diameter that is approximately the same as the outer diameter of the outer tube 2 and an outer diameter that is approximately the same as the inner diameter of the second cylindrical surface 10B on the proximal side of the mouthpiece 3.

在圓筒部21的外周面上部與下部,形成有向徑方向外側突出的定位部(凸部)24。定位部24對應於上下凸緣15的內面定位部(凹部)16。On the upper and lower portions of the outer peripheral surface of the cylindrical portion 21, positioning portions (convex portions) 24 projecting outward in the radial direction are formed. The positioning portion 24 corresponds to the inner surface positioning portion (recessed portion) 16 of the upper and lower flanges 15.

在圓筒部21的內面,形成有向內方突出的卡止部(第2卡止部)25。在實施形態中,卡止部25由一個或複數個大致對應外套管2的外側環狀溝部5的形狀的凸條(在此為兩個)所構成。取而代之,卡止部25也可是一個凸起或複數個凸起。On the inner surface of the cylindrical portion 21, a locking portion (second locking portion) 25 protruding inward is formed. In the embodiment, the locking portion 25 is composed of one or a plurality of protrusions (here, two) approximately corresponding to the shape of the outer annular groove 5 of the outer sleeve 2. Instead, the locking portion 25 may also be one protrusion or a plurality of protrusions.

圓筒部21的基端連接於圓錐圓筒部22。圓錐圓筒部22從其基端往末端側內徑逐漸擴大。圓錐圓筒部22的末端連接於環狀部23。環狀部23從圓錐圓筒部22的末端向徑方向內側延伸,並於中央形成有圓形的開口23a。從開口23a更形成有環狀閥23b,該環狀閥23b向基端側內徑逐漸變小。環狀閥23b薄化為可容易變形。又,環狀閥23b的中心孔23c,被決定為較插入於外套管2的插入物(例如:內視鏡)的外徑小。因此,在從中心孔23c插入於接合器4的插入物的外周,中心孔23c的內周緣緊貼並於其接觸部形成密封。The base end of the cylindrical portion 21 is connected to the conical cylindrical portion 22. The inner diameter of the conical cylindrical portion 22 gradually expands from the base end toward the distal end side. The end of the conical cylindrical portion 22 is connected to the annular portion 23. The annular portion 23 extends radially inward from the distal end of the conical cylindrical portion 22, and has a circular opening 23a formed in the center. An annular valve 23b is further formed from the opening 23a, and the inner diameter of the annular valve 23b gradually decreases toward the proximal side. The ring valve 23b is thinned to be easily deformable. In addition, the center hole 23c of the ring valve 23b is determined to be smaller than the outer diameter of the insert (for example, an endoscope) inserted into the overtube 2. Therefore, on the outer periphery of the insert inserted into the adapter 4 from the center hole 23c, the inner peripheral edge of the center hole 23c is in close contact with the contact portion to form a seal.

將由以上構成所組成的外套管組件1組合於接口管3時,將在末端側固定有外殼9的外套管2,從其末端側或基端側插入於接口管3的筒狀通道10C。此時,左右的鎖板13設定於非卡止位置,且使末端側部分18a的卡止部(第1卡止部)19,不干涉從末端側往基端側或其相反方向插入的外套管2。When the overtube assembly 1 composed of the above configuration is combined with the mouthpiece 3, the overtube 2 to which the housing 9 is fixed on the tip side is inserted into the cylindrical channel 10C of the mouthpiece 3 from the tip or base side. At this time, the left and right lock plates 13 are set at the non-locking position, and the locking portion (first locking portion) 19 of the distal end portion 18a does not interfere with the outer casing inserted from the distal side to the proximal side or the opposite direction Tube 2.

為了依照受驗者的體型調整外套管2的長度,將接口管3的基端側切斷必要長度。此時,因外套管2的厚度較小,又無端狀的外側環狀溝部5連續於圓周方向,可徹底地弄齊切斷端。又,因外側環狀溝部5的齒距為固定,可輕易地辨認切斷位置。例如,外側環狀溝部5形成為齒距3mm時,為了切除3.0cm,不用放上比例尺來測量長度,大概從基端起算第10個外側環狀溝部5的位置切斷即可。In order to adjust the length of the outer tube 2 according to the body shape of the subject, the base end side of the mouthpiece 3 is cut to a necessary length. At this time, since the thickness of the outer sleeve 2 is small, and the endless outer annular groove 5 continues in the circumferential direction, the cut ends can be completely aligned. In addition, since the tooth pitch of the outer annular groove 5 is fixed, the cutting position can be easily recognized. For example, when the outer annular groove portion 5 is formed with a pitch of 3 mm, in order to cut 3.0 cm, the length can be measured without placing a scale, and the outer annular groove portion 5 may be cut roughly at the position of the tenth outer annular groove portion 5 from the base.

調整外套管2的長度後,於外套管2的基端崁入接合器4。藉此,接合器4的內面卡止部(第2卡止部)25,崁入外套管2的外側環狀溝部5,接合器4相對於外套管2可拆卸地固定。After adjusting the length of the outer sleeve 2, the adapter 4 is inserted into the base end of the outer sleeve 2. Thereby, the inner surface locking portion (second locking portion) 25 of the adapter 4 is embedded in the outer annular groove portion 5 of the outer tube 2, and the adapter 4 is detachably fixed to the outer tube 2.

使用時,即插管時,在事前將內視鏡插通於外套管2,將內視鏡插入受驗者的食道後,將外套管2沿內視鏡從受驗者的嘴往喉頭再往食道插入。此時,在外套管2因外側環狀溝部5與內側環狀溝部7交替地連續,所以外套管2依照喉頭與食道的形狀容易地彎曲。又,即使從外側向外套管2施加局部的力,因圓環狀壁的存在,管的內徑也不會局部地變小。接口管3將其插入筒部10插入受驗者的嘴,並將已安裝於左右的鉤14的繩繞於受驗者的後頭部,以固定於受驗者。When in use, that is, when intubating, insert the endoscope into the overtube 2 beforehand, insert the endoscope into the esophagus of the subject, and move the overtube 2 along the endoscope from the subject’s mouth to the throat. Insert into the esophagus. At this time, since the outer annular groove portion 5 and the inner annular groove portion 7 are alternately continuous in the outer tube 2, the outer tube 2 is easily bent according to the shape of the larynx and esophagus. In addition, even if a local force is applied to the outer sleeve 2 from the outside, the inner diameter of the tube will not be locally reduced due to the existence of the annular wall. The mouthpiece 3 is inserted into the barrel 10 into the mouth of the subject, and the cords attached to the left and right hooks 14 are wound around the back of the subject to fix it to the subject.

外套管2的末端插入至目的位置後,左右的鎖板13的末端側互相被往另一方向推。藉此,鎖板13從非卡止位置往卡止位置移動,卡止部19嵌入於外套管2的外側環狀溝部5,並使外套管2相對於接口管3固定。After the end of the outer sleeve 2 is inserted to the target position, the end sides of the left and right lock plates 13 are pushed in the other direction. Thereby, the lock plate 13 moves from the non-locking position to the locking position, the locking portion 19 is fitted into the outer annular groove portion 5 of the outer tube 2 and the outer tube 2 is fixed to the mouthpiece 3.

又,外套管2的末端插入至目的位置後,接合器4的定位部(凸部)24嵌入於接口管3的定位部(凹部)16,並防止外套管2對接口管3的旋轉(繞著中心軸的旋轉)。Furthermore, after the end of the outer sleeve 2 is inserted to the target position, the positioning portion (convex portion) 24 of the adapter 4 is fitted into the positioning portion (concave) 16 of the mouthpiece 3, and prevents the outer sleeve 2 from rotating (around the mouthpiece) 3 The rotation of the central axis).

在此狀態下,內視鏡等的插入物從接合器4的中心孔23c透過外套管2插入於受驗者的體內、拔除、進行目的的處置。In this state, an insert such as an endoscope is inserted into the body of the subject through the overtube 2 from the center hole 23c of the adapter 4, removed, and the intended treatment is performed.

處置結束後,將被插管的外套管2從受驗者拆卸時,將左右的鎖板13的基端側互相往另一方向推,以將鎖板13從卡止位置往非卡止位置移動。藉此,外套管2可拔出至受驗者的體外。After the treatment, when removing the overtube 2 to be inserted from the subject, push the base ends of the left and right lock plates 13 in the other direction to move the lock plates 13 from the locked position to the non-locked position mobile. Thereby, the outer sleeve 2 can be pulled out of the subject's body.

上述的實施形態的外套管組件,可有多種變化。The outer sleeve assembly of the above-mentioned embodiment can have various changes.

例如,形成於外套管2的外周面的溝,沒有必要為無端狀的環狀溝,也可形成為螺旋狀地相連接的一個或複數個螺旋溝。For example, the groove formed on the outer peripheral surface of the outer sleeve 2 does not need to be an endless annular groove, and may be formed as one or a plurality of spiral grooves connected spirally.

又,第1卡止部19可以不是設置於鎖板13的末端側部分(18a),而是設置於基端側部分(18b)。In addition, the first locking portion 19 may not be provided in the distal end portion (18a) of the lock plate 13, but may be provided in the proximal end portion (18b).

又,在以上說明,鎖板13雖設置於接口管3的左右兩側,但至少有一個即可。但,如上述的實施形態所示,若將鎖板13配置於接口管3的左右兩側,因可用例如:大拇指、食指按壓此些鎖板13,所以達成更安定的卡止(非卡止)操作。In addition, as described above, although the lock plates 13 are provided on the left and right sides of the mouthpiece 3, at least one of them is sufficient. However, as shown in the above-mentioned embodiment, if the lock plates 13 are arranged on the left and right sides of the mouthpiece 3, the lock plates 13 can be pressed with, for example, the thumb and index finger, so that a more stable locking (non-locking) is achieved. Stop) operation.

1:外套管組件 2:外套管 3:接口管 4:接合器 5:外側環狀溝部(凹部) 6:外側環狀凸部 7:內側環狀溝部 8:內側環狀凸部 9:外殼 9a:外殼末端部分 9b:小徑環狀凸部 9c:大徑環狀溝部 10:插入筒部 10a:小徑圓弧面 10b:大徑圓弧面 10A:第1筒狀面 10B:第2筒狀面 10C:筒狀通道 10D:凸緣部 11:面板(凸緣) 11a:開口 12:托座 13:鎖板(旋轉構件) 14:鉤 15:凸緣 16:定位部(凹部) 17:軸承凸緣 17a:軸承孔 18a:末端側部分 18b:基端側部分 19:卡止部(第1卡止部) 20:軸部(轉軸) 21:圓筒部 22:圓錐圓筒部 23:環狀部 23a:開口 23b:環狀閥 23c:中心孔 24:定位部(凸部) 25:卡止部(第2卡止部) 30:墊構件 D:直徑 H:突出尺寸 P:齒距尺寸 W:距離 W1:寬度尺寸 W2:寬度尺寸 t:厚度1: Outer tube assembly 2: outer tube 3: Interface tube 4: Adapter 5: Outer annular groove (concave) 6: Outer ring convex 7: Inside annular groove 8: inner ring convex 9: Shell 9a: The end part of the shell 9b: Small diameter ring convex 9c: Large diameter annular groove 10: Insert the barrel 10a: Small diameter arc surface 10b: Large diameter arc surface 10A: The first cylindrical surface 10B: 2nd cylindrical surface 10C: Cylindrical channel 10D: Flange 11: Panel (flange) 11a: opening 12: Bracket 13: Lock plate (rotating member) 14: hook 15: flange 16: positioning part (concave part) 17: Bearing flange 17a: Bearing hole 18a: End side part 18b: Base end part 19: Locking part (1st locking part) 20: Shaft (rotation shaft) 21: Cylinder 22: Cone cylindrical part 23: Ring 23a: opening 23b: Ring valve 23c: Center hole 24: Positioning part (convex part) 25: Locking part (Second locking part) 30: Pad member D: diameter H: Protruding size P: Pitch size W: distance W1: width size W2: width size t: thickness

圖1是本發明之實施形態的外套管組件的立體圖。 圖2是顯示於圖1的外套管組件的立體分解圖。 圖3是構成顯示於圖1的外套管組件之外套管的局部放大截面圖。 圖4是切除構成顯示於圖1的外套管組件之接口管的一部分的立體圖。 圖5是切除構成顯示於圖1的外套管組件之接合器的一部分的立體圖。 圖6是切除顯示於圖1的外套管組件的一部分的立體圖。 圖7是切除顯示於圖1的外套管組件的一部分的立體圖。 圖8是從顯示於圖1的外套管組件的接口管側的相反側來看的局部立體圖。Fig. 1 is a perspective view of an overtube assembly according to an embodiment of the present invention. Fig. 2 is an exploded perspective view of the outer sleeve assembly shown in Fig. 1. Fig. 3 is a partial enlarged cross-sectional view of the outer sleeve constituting the outer sleeve assembly shown in Fig. 1. Fig. 4 is a perspective view of a part of the mouthpiece constituting the outer sleeve assembly shown in Fig. 1 cut away. Fig. 5 is a perspective view of a part of the adaptor constituting the outer sleeve assembly shown in Fig. 1 cut away. Fig. 6 is a perspective view of a part of the outer sleeve assembly shown in Fig. 1 cut away. Fig. 7 is a perspective view of a part of the outer sleeve assembly shown in Fig. 1 cut away. Fig. 8 is a partial perspective view seen from the side opposite to the mouthpiece side of the overtube assembly shown in Fig. 1.

2:外套管 2: outer tube

3:接口管 3: Interface tube

4:接合器 4: Adapter

5:外側環狀溝部(凹部) 5: Outer annular groove (concave)

7:內側環狀溝部 7: Inside annular groove

8:內側環狀凸部 8: inner ring convex

10:插入筒部 10: Insert the barrel

10C:筒狀通道 10C: Cylindrical channel

11:平板(凸緣) 11: Flat plate (flange)

16:定位部(凹部) 16: positioning part (concave part)

23:環狀部 23: Ring

23a:圓形開口 23a: round opening

23b:環狀閥 23b: Ring valve

23c:中心孔 23c: Center hole

24:定位部(凸部) 24: Positioning part (convex part)

25:卡止部(第2卡止部) 25: Locking part (Second locking part)

Claims (9)

一種外套管組件,其特徵在於具備: 外套管,呈中空筒狀,具有可撓性,並於兩端具有開口;及 接口管,沿該外套管的中心軸方向可移動地裝設於前述外套管的外周, 前述外套管,具有複數個凹部,該複數個凹部沿該外套管的中心軸方向隔開預定的間隔而設置於該外套管的外周, 前述接口管,具有卡止部,該卡止部被卡止於前述外套管的前述凹部。An outer sleeve assembly, which is characterized by having: The outer sleeve is in the shape of a hollow cylinder, has flexibility, and has openings at both ends; and The mouthpiece is movably installed on the outer circumference of the outer sleeve along the central axis of the outer sleeve, The aforementioned outer sleeve has a plurality of recesses, and the plurality of recesses are provided on the outer periphery of the outer sleeve at a predetermined interval along the central axis direction of the outer sleeve, The mouthpiece has a locking portion that is locked to the concave portion of the outer tube. 如請求項1之外套管組件,其中前述卡止部被構成為可移動於卡止位置與非卡止位置之間,該卡止位置為卡止於前述凹部的位置;該非卡止位置為不卡止於前述凹部的位置。For example, the sleeve assembly outside claim 1, wherein the aforementioned locking portion is configured to be movable between a locking position and a non-locking position, the locking position is a position locked to the aforementioned recess; the non-locking position is not It is locked at the position of the aforementioned recess. 如請求項1之外套管組件,其中前述接口管具有:筒狀通道,被前述外套管插通, 前述卡止部被構成為可移動於卡止位置與非卡止位置之間,該卡止位置為進入前述筒狀通道並卡止於前述凹部的位置;該非卡止位置為從前述筒狀通道退避並不卡止於前述凹部的位置。For example, the sleeve assembly outside claim 1, wherein the aforementioned mouthpiece has: a cylindrical channel inserted through the aforementioned outer sleeve, The locking portion is configured to be movable between a locking position and a non-locking position, the locking position is a position where it enters the cylindrical passage and is locked in the recess; the non-locking position is from the cylindrical passage The retreat does not stop at the position of the aforementioned recess. 如請求項3之外套管組件,其中前述接口管具有:旋轉構件,以軸部為中心旋轉,該軸部朝垂直於前述筒狀通道的中心軸之方向配置, 前述旋轉構件具有:末端側部分,位於前述軸部的末端側;及基端側部分,位於前述軸部的基端側, 前述卡止部被設置於前述末端側部分或前述基端側部分之任一者。For example, the sleeve assembly other than claim 3, wherein the aforementioned mouthpiece has: a rotating member that rotates around a shaft portion that is arranged in a direction perpendicular to the central axis of the aforementioned cylindrical passage, The aforementioned rotating member has: a distal end portion located on the distal side of the aforementioned shaft portion; and a proximal end portion located on the proximal side of the aforementioned shaft portion, The said locking part is provided in either the said terminal side part or the said base end side part. 如請求項4之外套管組件,其中前述旋轉構件以包夾前述筒狀通道而相對向的方式被配置於前述筒狀通道的兩側。As in claim 4, the sleeve assembly, wherein the rotating member is arranged on both sides of the cylindrical passage so as to sandwich the cylindrical passage and face each other. 如請求項1至請求項5中任一項之外套管組件,其中前述凹部為沿前述外套管的圓周方向延伸的溝。As in any one of claims 1 to 5, the outer sleeve assembly, wherein the aforementioned recess is a groove extending along the circumferential direction of the aforementioned outer sleeve. 如請求項6之外套管組件,其中前述溝為沿前述外套管的圓周方向無端狀地延伸的環狀溝。As in claim 6, the outer sleeve assembly, wherein the groove is an annular groove extending endlessly along the circumferential direction of the outer sleeve. 如請求項6之外套管組件,其中前述溝為沿前述外套管的圓周方向螺旋狀地延伸的螺旋溝。As in claim 6, the outer sleeve assembly, wherein the aforementioned groove is a spiral groove extending spirally along the circumferential direction of the aforementioned outer sleeve. 如請求項6至請求項8中任一項之外套管組件,其中前述卡止部為對應前述溝的細長凸條。For example, the outer sleeve assembly in any one of claim 6 to claim 8, wherein the aforementioned locking portion is an elongated convex strip corresponding to the aforementioned groove.
TW108121763A 2019-06-21 2019-06-21 Overtube assembly TW202100087A (en)

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