TWM605102U

TWM605102U - Negative pressure suction device

Info

Publication number: TWM605102U
Application number: TW109211185U
Authority: TW
Inventors: 萬肖蓬
Original assignee: 康成生醫科技有限公司
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-12-11

Abstract

本創作公開了一種負壓吸引裝置，包括負壓吸引器、擴張管、中空的鞘管；所述的鞘管由近端鞘管和遠端鞘管連接而成，在近端鞘管的近端設有活動密封蓋，所述擴張管能夠由近端鞘管的近端***並延伸到遠端鞘管的遠端並把擴張管固定在近端鞘管上；所述的近端鞘管上連接有至少2個中空的側管，所述的負壓吸引器連接在其中一個側管遠離鞘管的一端。本創作旨在提供一種能夠有效、便捷、準確、高效的移除結石的負壓吸引裝置，同時該負壓吸引裝置還可以用於人體內腔的異物和切除的組織的移除。This creation discloses a negative pressure suction device, which includes a negative pressure suction device, an expansion tube, and a hollow sheath; the sheath is formed by connecting a proximal sheath and a distal sheath, and is located near the proximal sheath. The end is provided with a movable sealing cover, the expansion tube can be inserted from the proximal end of the proximal sheath and extend to the distal end of the distal sheath and fix the expansion tube on the proximal sheath; the proximal sheath At least two hollow side tubes are connected to the upper part, and the negative pressure suction device is connected to one end of the side tube away from the sheath tube. The purpose of this creation is to provide a negative pressure suction device that can effectively, conveniently, accurately and efficiently remove stones. At the same time, the negative pressure suction device can also be used for the removal of foreign bodies and resected tissues in the body cavity.

Description

負壓吸引裝置Negative pressure suction device

本創作關於醫療設備領域，特別是一種操作容易、結構簡單、移除效率高的負壓吸引裝置。This creation is about the field of medical equipment, especially a negative pressure suction device with easy operation, simple structure and high removal efficiency.

腎結石和膽結石困擾人類很久。結石存在於尿道或膽道導致的併發症，通常需要外科手術介入治療。傳統的移除結石的外科手術是外科醫生切開病人的腹部移除結石，病人需要在醫院待很長的時間康復。外部取出結石設計减少了病人遭受痛苦和康復的時間。Kidney stones and gallstones have plagued humans for a long time. Complications caused by stones in the urethra or biliary tract usually require surgical intervention. The traditional surgical procedure for removing stones is that the surgeon cuts the patient's abdomen to remove the stones. The patient needs to stay in the hospital for a long time to recover. The external stone removal design reduces the patient's pain and recovery time.

在過去的四十年中，結石疾病的治療已經取得很大的進步，特別是在體外內視鏡碎石領域。然而所有的這些新型聚焦於通道和結石的破碎。體外衝擊波碎石技術利用壓力波來壓碎結石，但是要求病人自身排除石頭碎片。在碎石術中經皮腎造口術鞘和各種輸尿管鞘允許接觸結石。然而，他們也要求病人靠自身排除石頭碎片或者碎石的時候透過壓力沖洗和結石鑷子排出。壓力沖洗和結石鑷子增加了手術時間和外科的複雜度。In the past four decades, the treatment of stone diseases has made great progress, especially in the field of external endoscopic lithotripsy. However, all these new types focus on the breaking of channels and stones. Extracorporeal shock wave lithotripsy technology uses pressure waves to crush stones, but requires the patient to remove the stone fragments. Percutaneous nephrostomy sheaths and various ureteral sheaths allow contact with stones during lithotripsy. However, they also require patients to remove stone fragments or crushed stones by themselves through pressure washing and stone forceps. Pressure irrigation and stone forceps increase the operation time and surgical complexity.

本創作的目的在於提供一種能夠有效、便捷、準確、高效的移除結石的負壓吸引裝置，同時該負壓吸引裝置還可以用於人體內腔的異物和切除的組織的移除。The purpose of this creation is to provide a negative pressure suction device that can effectively, conveniently, accurately and efficiently remove stones. At the same time, the negative pressure suction device can also be used to remove foreign bodies and resected tissues in the body cavity.

本創作的技術手段爲一種負壓吸引裝置，包括負壓吸引器、擴張管、中空的鞘管；其特徵在於，所述的鞘管由近端鞘管和遠端鞘管連接而成，在近端鞘管的近端設有活動密封蓋，所述擴張管能夠由近端鞘管的近端***並延伸到遠端鞘管的遠端並把擴張管固定在近端鞘管上；所述的近端鞘管上連接有至少2個中空的側管，所述的負壓吸引器連接在其中一個側管遠離鞘管的一端。The technical means of this creation is a negative pressure suction device, including a negative pressure suction device, a dilation tube, and a hollow sheath; it is characterized in that the sheath is formed by connecting a proximal sheath and a distal sheath. The proximal end of the proximal sheath is provided with a movable sealing cover, and the expansion tube can be inserted from the proximal end of the proximal sheath and extend to the distal end of the distal sheath and fix the expansion tube on the proximal sheath; At least two hollow side tubes are connected to the proximal sheath tube, and the negative pressure suction device is connected to one end of the side tube away from the sheath tube.

在上述的負壓吸引裝置中，所述的鞘管的外側設有輔助通道，所述的鞘管和輔助通道形成雙腔結構。In the above-mentioned negative pressure suction device, an auxiliary channel is provided on the outer side of the sheath tube, and the sheath tube and the auxiliary channel form a double-lumen structure.

在上述的負壓吸引裝置中，在所述的遠端鞘管的遠端設有一個可擴大結構。In the above-mentioned negative pressure suction device, an expandable structure is provided at the distal end of the distal sheath.

在上述的負壓吸引裝置中，所述的可擴大結構爲可充放氣的氣囊或者可以擴大或收縮的膨脹彈簧。In the above-mentioned negative pressure suction device, the expandable structure is an inflatable airbag or an expansion spring that can be expanded or contracted.

在上述的負壓吸引裝置中，在所述的鞘管內壁設有不透射線的夾層，或者在所述的鞘管外壁設有不透射線的夾層，或者在所述的鞘管管壁鑲嵌有不透射線的夾層。In the above-mentioned negative pressure suction device, a radiopaque interlayer is provided on the inner wall of the sheath, or a radiopaque interlayer is provided on the outer wall of the sheath, or on the wall of the sheath. Inlaid with radiopaque interlayer.

在上述的負壓吸引裝置中，所述的活動密封蓋上設有用於***內視鏡的通孔，所述的通孔的直徑與內視鏡的外徑相適應。In the above-mentioned negative pressure suction device, the movable sealing cover is provided with a through hole for inserting the endoscope, and the diameter of the through hole is adapted to the outer diameter of the endoscope.

在上述的負壓吸引裝置中，所述的側管的內徑爲近端鞘管的中空部直徑的0.8～1.2倍；或者所述的側管的內徑爲遠端鞘管的中空部直徑的0.8～1.2倍。In the above-mentioned negative pressure suction device, the inner diameter of the side tube is 0.8 to 1.2 times the diameter of the hollow part of the proximal sheath; or the inner diameter of the side tube is the diameter of the hollow part of the distal sheath 0.8 to 1.2 times of

在上述的負壓吸引裝置中，所述的側管沿近端鞘管方向延伸，並且所述的側管與近端鞘管的夾角爲20°～70°。In the above-mentioned negative pressure suction device, the side tube extends in the direction of the proximal sheath tube, and the included angle between the side tube and the proximal sheath tube is 20° to 70°.

在上述的負壓吸引裝置中，所述的鞘管爲剛性、半剛性或柔性管，所述的近端鞘管爲透明或半透明結構；所述的連接有負壓吸引器的側管與近端鞘管的連接處的上方設有標記帶；所述的側管上連接有用於調節壓力的壓力調節機構。In the above-mentioned negative pressure suction device, the sheath tube is a rigid, semi-rigid or flexible tube, and the proximal sheath tube is a transparent or semi-transparent structure; the side tube connected with the negative pressure suction device and A marking band is arranged above the connection of the proximal sheath; the side tube is connected with a pressure adjusting mechanism for adjusting the pressure.

在上述的負壓吸引裝置中，所述的負壓吸引器包括採集容器，所述的採集容器包括瓶體和與所述瓶體以可拆卸方式連接的上端蓋體，所述的採集容器的上端蓋體上設有入口管和出口管，所述的入口管透過連接管與對應的側管相連，所述的出口管與負壓産生設備相連；所述的出口管透過一三通閥與負壓産生設備相連。In the above-mentioned negative pressure suction device, the negative pressure suction device includes a collection container, and the collection container includes a bottle body and an upper end cover that is detachably connected to the bottle body. The upper end cover is provided with an inlet pipe and an outlet pipe, the inlet pipe is connected to the corresponding side pipe through a connecting pipe, the outlet pipe is connected to the negative pressure generating device; the outlet pipe is connected to the corresponding side pipe through a three-way valve The negative pressure generating device is connected.

本創作的負壓吸引裝置結構簡單，並且具有一個或者多個側管，提高了輔助設備***的可行性，並且透過輔助通道，提高了定位的準確性，透過可擴大機構，提高了吸取碎石或者其他組織結構的範圍和效果。本創作的負壓吸引裝置可以廣泛用於結石的移除、組織碎片的提取，降低了患者的痛苦，提高了操作效率。The negative pressure suction device of this creation is simple in structure and has one or more side tubes, which improves the feasibility of inserting auxiliary equipment, and improves the accuracy of positioning through the auxiliary channel, and improves the suction of rubble through the expandable mechanism Or the scope and effect of other organizational structures. The negative pressure suction device of the invention can be widely used for the removal of stones and the extraction of tissue fragments, which reduces the pain of patients and improves operation efficiency.

下面結合具體實施方式，對本創作的技術手段作進一步的詳細說明，但不構成對本創作的任何限制。The technical means of this creation will be further described in detail below in conjunction with specific implementations, but it does not constitute any restriction on this creation.

實施例1Example 1

如圖1～11所示，一種負壓吸引裝置10，包括負壓吸引器、擴張管90、中空的鞘管20；所述的鞘管20由近端鞘管30和遠端鞘管40連接而成，在近端鞘管30的近端設有活動密封蓋100，所述擴張管90能夠由近端鞘管30的近端***並延伸到遠端鞘管40的遠端並把擴張管固定在近端鞘管30上；所述的近端鞘管30上連接有至少2個中空的側管，較佳爲2、3、4、5根，在本實施例中側管的數量爲2根，在此標注爲第一側管50和第二側管60，所述的負壓吸引器連接在其中一個側管即第一側管50遠離鞘管的一端。具體來說，近端鞘管30包括第一近端31和第一遠端32以及第一內腔33，所述的遠端鞘管40包括第二近端41和第二遠端42以及第二內腔43，所述的第一側管50包括第三近端51和第三遠端52以及第三內腔53，所述的近端鞘管30的第一遠端32和遠端鞘管40的第二近端41連接，其連接較佳爲可剝離的連接或可拆卸的連接方式，如遠端鞘管40是由可剝離或可撕材料製成。這也可以用沿遠端鞘管40的縱向軸線製造的穿孔來實現。進一步較佳地，在遠端鞘管40的與近端鞘管30連接的地方設置有兩個側翼，這將有利於分離、剝離、撕裂，活動密封蓋100設置在第一近端31上，擴張管90經第一近端31***到鞘管20中。As shown in Figures 1-11, a negative pressure suction device 10 includes a negative pressure suction device, a dilation tube 90, and a hollow sheath 20; the sheath 20 is connected by a proximal sheath 30 and a distal sheath 40 The movable sealing cap 100 is provided at the proximal end of the proximal sheath 30, and the expansion tube 90 can be inserted from the proximal end of the proximal sheath 30 and extended to the distal end of the distal sheath 40 and the expansion tube Fixed on the proximal sheath 30; the proximal sheath 30 is connected with at least 2 hollow side tubes, preferably 2, 3, 4, 5, and the number of side tubes in this embodiment is Two, here are marked as the first side tube 50 and the second side tube 60, the negative pressure aspirator is connected to one of the side tubes, that is, the end of the first side tube 50 away from the sheath tube. Specifically, the proximal sheath 30 includes a first proximal end 31, a first distal end 32, and a first lumen 33, and the distal sheath 40 includes a second proximal end 41, a second distal end 42 and a Two inner cavities 43, the first side tube 50 includes a third proximal end 51, a third distal end 52 and a third inner cavity 53, the first distal end 32 and the distal sheath of the proximal sheath 30 The second proximal end 41 of the tube 40 is connected, and the connection is preferably a peelable connection or a detachable connection. For example, the distal sheath 40 is made of a peelable or tearable material. This can also be achieved with perforations made along the longitudinal axis of the distal sheath 40. Further preferably, two side wings are provided at the place where the distal sheath 40 is connected to the proximal sheath 30, which will facilitate separation, peeling, and tearing. The movable sealing cover 100 is provided on the first proximal end 31 , The expansion tube 90 is inserted into the sheath 20 through the first proximal end 31.

如圖3所示，所述的活動密封蓋100上設有用於***內視鏡的通孔101，所述的通孔101的直徑與內視鏡的外徑相適應。如圖3所示，所述的第一側管50連接在所述的近端鞘管31外側。所述的第一側管50的內徑爲近端鞘管30的第一內腔33直徑的80％～120％，如80％、100％、120％；或者所述的第一側管50的內徑爲遠端鞘管40的第二內腔43直徑的80％～120％，如80％、100％、120％，以能夠保證結石或者其他組織結構能夠順利排出爲準，所述的鞘管20爲剛性的、半剛性的或柔性管。該鞘管20由任何醫用級材料構成，其包括但並不限定於，尼龍、聚乙烯、聚氯乙烯、聚碳酸酯、聚丙烯或氟化乙烯丙烯。鞘管20可以用剛性或半剛性的線圈或細絲予以加强它的管壁强度，以達到理想的强度。近端鞘管30和遠端鞘管40可以連接在一起作爲一個單件或可連接在一起的套式連接。較佳地，近端鞘管30是剛性的，為聚丙烯、聚碳酸酯或聚氯乙烯的構造，而遠端鞘管40是半剛性的，由尼龍、聚乙烯或氟化的乙烯丙烯構成。鞘管20還具有內腔23和外表面24。鞘管20的長度可以對應於在本領域中已知的任何長度。比如，所述鞘管20的長度爲15～45公分的範圍內。鞘管20的內腔23可以是允許碎石術中常用的內視鏡通道的任何直徑，比如，內腔23的直徑可在3至8毫米或8至24Fr的範圍內變化。進一步較佳地，在所述的鞘管20內壁設有不透射線的夾層(圖中未示出)，或者在所述的鞘管20外壁設有不透射線的夾層，或者在所述的鞘管20管壁鑲嵌有不透射線的夾層。比如，不透射線的材料的夾層也可以使用在鞘管20的外表面24，其可以在確定患者體內的鞘管20的位置中提供幫助。As shown in FIG. 3, the movable sealing cover 100 is provided with a through hole 101 for inserting an endoscope, and the diameter of the through hole 101 is adapted to the outer diameter of the endoscope. As shown in FIG. 3, the first side tube 50 is connected to the outside of the proximal sheath 31. The inner diameter of the first side tube 50 is 80% to 120% of the diameter of the first lumen 33 of the proximal sheath 30, such as 80%, 100%, 120%; or the first side tube 50 The inner diameter is 80% to 120% of the diameter of the second lumen 43 of the distal sheath 40, such as 80%, 100%, 120%, so as to ensure the smooth discharge of stones or other tissue structures. The sheath 20 is a rigid, semi-rigid or flexible tube. The sheath 20 is made of any medical grade material, including but not limited to nylon, polyethylene, polyvinyl chloride, polycarbonate, polypropylene or fluorinated ethylene propylene. The sheath 20 can be strengthened by rigid or semi-rigid coils or filaments to achieve the desired strength. The proximal sheath 30 and the distal sheath 40 may be connected together as a single piece or a sleeved connection that can be connected together. Preferably, the proximal sheath 30 is rigid and is constructed of polypropylene, polycarbonate or polyvinyl chloride, while the distal sheath 40 is semi-rigid and is composed of nylon, polyethylene or fluorinated ethylene propylene. . The sheath 20 also has an inner cavity 23 and an outer surface 24. The length of the sheath 20 may correspond to any length known in the art. For example, the length of the sheath 20 is in the range of 15 to 45 cm. The inner cavity 23 of the sheath 20 can be any diameter that allows an endoscope channel commonly used in lithotripsy. For example, the diameter of the inner cavity 23 can vary in the range of 3 to 8 mm or 8 to 24 Fr. Further preferably, a radiopaque interlayer (not shown in the figure) is provided on the inner wall of the sheath 20, or a radiopaque interlayer is provided on the outer wall of the sheath 20, or The wall of the sheath 20 is inlaid with a radiopaque interlayer. For example, a sandwich of radiopaque material can also be used on the outer surface 24 of the sheath 20, which can provide assistance in determining the position of the sheath 20 in the patient.

所述的近端鞘管30爲透明或半透明結構，以利於在結石被吸出時的可視。所述的第一側管50上連接有用於調節壓力的壓力調節機構110，壓力調節機構110可以爲簡單的狹縫或孔的形式的控制通氣口，或者它可以是更複雜的機構，例如閥，更進一步地，壓力調節機構110爲沿第一側管50的軸線延伸的可以調節開度的狹縫，當無需調節時，該狹縫處於關閉狀態。此外，壓力調節機構110還可以爲三通閥或者其他種類的閥門，以調節負壓。如圖10-11所示，所述的遠端鞘管40的第二遠端42即鞘管20的遠端22爲可擴大結構120，所述的可擴大結構120爲可充放氣的氣囊或者可以擴大或收縮的膨脹彈簧，可擴大結構120可以被用來收集鞘管裏面的結石、異物或者目標組織進行治療。更進一步地，鞘管20的遠端22即遠端鞘管40的第二遠端42被配置爲錐形結構，以方便所述鞘管20***到患者的體腔內。一旦鞘管20的遠端22到位，遠端22然後可根據需要擴大，提高了吸附結石或者其他組織的範圍和力度，有效地提高了負壓吸附的效率。The proximal sheath 30 has a transparent or semi-transparent structure to facilitate visualization when the stone is sucked out. The first side pipe 50 is connected with a pressure adjusting mechanism 110 for adjusting pressure. The pressure adjusting mechanism 110 may be a simple slit or hole control vent, or it may be a more complicated mechanism, such as a valve. Furthermore, the pressure adjusting mechanism 110 is a slit extending along the axis of the first side tube 50 and whose opening degree can be adjusted. When no adjustment is required, the slit is in a closed state. In addition, the pressure adjusting mechanism 110 may also be a three-way valve or other types of valves to adjust the negative pressure. As shown in FIGS. 10-11, the second distal end 42 of the distal sheath 40, that is, the distal end 22 of the sheath 20, is an expandable structure 120, and the expandable structure 120 is an inflatable and deflated balloon. Or an expansion spring that can be expanded or contracted, and the expandable structure 120 can be used to collect stones, foreign bodies or target tissues in the sheath for treatment. Further, the distal end 22 of the sheath tube 20, that is, the second distal end 42 of the distal sheath tube 40, is configured in a tapered structure to facilitate the insertion of the sheath tube 20 into the body cavity of the patient. Once the distal end 22 of the sheath 20 is in place, the distal end 22 can then be expanded as needed, increasing the range and strength of the adsorption of stones or other tissues, and effectively improving the efficiency of negative pressure adsorption.

所述的連接有負壓吸引器的第一側管50與近端鞘管30的連接處的上方設有標記帶36，第一側管50的第三遠端52與近端鞘管30的側面相連，第一側管50與近端鞘管30從連接處至第一近端31方向的角度A在0°到180°範圍內，介於10°和170°之間，20°和160°之間，30°和150°之間，在20°和110°之間，2°和90°之間，或介於20°和70°之間。進一步較佳地，第一側管50與連接處至近端鞘管30的第一近端31的方向的夾角爲45°、或25°、或30°。第一側管50的第三近端51被配置爲連接一個連接管70，第一側管50的第三近端51可以是直的、張開的、錐形的、可擴展的，包括但不侷限於一個鐵絲籃、導絲、管心針、圈、抓鉗等。回流防止器也可以結合附屬在第一側管50的第三近端51上。標記帶36的作用在於當內視鏡置於鞘管20內時，由於結石較大無法順利排出，需要將內視鏡從鞘管20內移至標記帶處，這樣，結石或者其他人體組織可以順利地透過第一側管50排出。The first side tube 50 connected with the negative pressure aspirator and the proximal sheath 30 are provided with a marking band 36 above the connection point. The third distal end 52 of the first side tube 50 is connected to the proximal sheath 30. Side connection, the angle A between the first side tube 50 and the proximal sheath 30 from the connection to the first proximal end 31 is in the range of 0° to 180°, between 10° and 170°, 20° and 160° °, between 30° and 150°, between 20° and 110°, between 2° and 90°, or between 20° and 70°. Further preferably, the angle between the first side tube 50 and the direction from the connection to the first proximal end 31 of the proximal sheath 30 is 45°, or 25°, or 30°. The third proximal end 51 of the first side tube 50 is configured to be connected to a connecting tube 70. The third proximal end 51 of the first side tube 50 can be straight, flared, tapered, expandable, including but Not limited to a wire basket, guide wire, stylet, loop, grasping forceps, etc. The backflow preventer may also be attached to the third proximal end 51 of the first side tube 50 in combination. The function of the marker band 36 is that when the endoscope is placed in the sheath 20, the stones cannot be discharged smoothly due to the large size. The endoscope needs to be moved from the sheath 20 to the marker band, so that the stones or other human tissues can be removed. Smoothly drain through the first side tube 50.

如圖3所示，第二側管60爲提供補充沖洗或導絲、結石籃子或其他在異物去除過程期間可能需要的設備的附加通道的側管，它也可以被用於結石或異物疏散的附加通道。第二側管60可位於近端鞘管的外表面34的任意位置。第二側管60沿該近端鞘管30的外表面34發散向上形成，並且與所述近端鞘管30的角度B在0°到180°範圍內，介於10°和170°之間，20°和160°之間，30°和150°之間，在20°和110°之間，20°和90°之間，或介於20°和70°之間。較佳地，該角度爲45°、30°或25°。較佳地，第二側管60的內腔63的直徑小於第一內腔33的直徑，或者小於第二內腔43的直徑。在另一個實施方式中，第二側管60的內腔的直徑與第一內腔33或第二內腔43是相同的或爲其直徑的120％，當第二側管60的內腔內徑較大時可以促進結石、結石碎片或其他異物的有效疏散。每個第二側管60包括第六近端61和第六遠端62，第六遠端62被固定到近端鞘管30的外表面34。第二側管60也可以包括壓力調節機構110。壓力調節機構110可簡單的是狹縫或孔的形式的控制通氣口，或者它可以是更複雜的機構，例如閥。較佳地，第二側管60的壓力調節機構110爲沿所述第二側管60的軸線的縱向狹縫，該縱向狹縫爲一個控制通氣開度的可控機構。當最小負壓力是必須的，該狹縫保持打開或最低限度地封閉。當負壓力需要根據需要，最高可完全封閉的狹縫。較佳地，該壓力調節機構110還可以爲一三通閥，其具有直腔88和直角腔89。當然如圖4和5所示，其也可以不用添加壓力調節機構110。As shown in FIG. 3, the second side tube 60 is a side tube that provides additional channels for supplementary flushing or guide wires, stone baskets, or other equipment that may be required during the foreign body removal process. It can also be used for the evacuation of stones or foreign bodies. Additional channel. The second side tube 60 can be located anywhere on the outer surface 34 of the proximal sheath. The second side tube 60 is formed diverging upward along the outer surface 34 of the proximal sheath 30, and the angle B with the proximal sheath 30 is in the range of 0° to 180°, between 10° and 170° , Between 20° and 160°, between 30° and 150°, between 20° and 110°, between 20° and 90°, or between 20° and 70°. Preferably, the angle is 45°, 30° or 25°. Preferably, the diameter of the inner cavity 63 of the second side tube 60 is smaller than the diameter of the first inner cavity 33 or smaller than the diameter of the second inner cavity 43. In another embodiment, the diameter of the inner cavity of the second side tube 60 is the same as or 120% of the diameter of the first inner cavity 33 or the second inner cavity 43. When the inner cavity of the second side tube 60 is Larger diameters can promote effective evacuation of stones, stone fragments or other foreign bodies. Each second side tube 60 includes a sixth proximal end 61 and a sixth distal end 62, and the sixth distal end 62 is fixed to the outer surface 34 of the proximal sheath 30. The second side tube 60 may also include a pressure adjustment mechanism 110. The pressure adjusting mechanism 110 may simply be a control vent in the form of a slit or a hole, or it may be a more complicated mechanism, such as a valve. Preferably, the pressure adjusting mechanism 110 of the second side tube 60 is a longitudinal slit along the axis of the second side tube 60, and the longitudinal slit is a controllable mechanism for controlling the ventilation opening. When minimum negative pressure is necessary, the slit remains open or minimally closed. When the negative pressure is required, the slit can be completely closed at most. Preferably, the pressure adjusting mechanism 110 can also be a three-way valve with a straight cavity 88 and a right angle cavity 89. Of course, as shown in FIGS. 4 and 5, the pressure adjustment mechanism 110 may not be added.

遠端鞘管40的第二內腔43可供醫療工具如內視鏡、擴張管，還可供結石、人體組織碎片等通過，其具有外表面44和鎖緊件45，如圖3所示，鎖緊件45用於保持遠端鞘管40和近端鞘管30的可靠連接，遠端鞘管40與近端鞘管30可以被配置爲單件的套筒式結構。遠端鞘管40可以是直的、錐形的、可擴展的。遠端鞘管40的第二遠端42可以是平坦的、傾斜的、凸的或凹的，較佳地，其爲平面端部，較佳地，遠端鞘管40的第二遠端42可以塗覆有親水性塗層和/或聚四氟乙烯，特別是在體液環境以减少摩擦。所述遠端鞘管40可以是不透明的、半透明的、透明的或這些的組合。在較佳實施方式中，遠端鞘管40是不透明，以避免內視鏡的照明光反射。如圖4所示，所述遠端鞘管40還可以具有測量標記46，以指示遠端鞘管40的長度已被推進到體腔內。遠端鞘管40的長度可在15～45公分的範圍內。The second lumen 43 of the distal sheath 40 can be used for medical tools such as endoscopes, dilation tubes, stones, human tissue fragments, etc., and has an outer surface 44 and a locking member 45, as shown in FIG. 3 The locking member 45 is used to maintain a reliable connection between the distal sheath 40 and the proximal sheath 30, and the distal sheath 40 and the proximal sheath 30 can be configured as a single-piece telescopic structure. The distal sheath 40 may be straight, tapered, and expandable. The second distal end 42 of the distal sheath 40 may be flat, inclined, convex or concave, preferably, it is a flat end, preferably, the second distal end 42 of the distal sheath 40 It can be coated with a hydrophilic coating and/or polytetrafluoroethylene, especially in a body fluid environment to reduce friction. The distal sheath 40 may be opaque, translucent, transparent, or a combination of these. In a preferred embodiment, the distal sheath 40 is opaque to avoid reflection of the illumination light of the endoscope. As shown in FIG. 4, the distal sheath 40 may also have a measurement mark 46 to indicate that the length of the distal sheath 40 has been advanced into the body cavity. The length of the distal sheath 40 may be in the range of 15 to 45 cm.

在本實施例中，如圖3所示，擴張管90爲腹腔鏡技術的儀器，擴張管90由剛性的，半剛性的或柔性的材料製成，並且可以具有軸和外表面94，其質地光滑，其爲一個實心結構或有一個空心中心的結構。擴張管90具有第五近端91和第五遠端92，從近端鞘管的第一近端31***，經第一內腔33和第二內腔43***到鞘管20中。第五遠端92可以是直的、圓的、錐形的、或斜削的。擴張管90是適合緊貼在鞘管20的內壁。較佳地，擴張管90具有一中空中心構成第五內腔和一個錐形的第五遠端92，導向線可以透過第五內腔傳遞。更佳地，擴張管90是固體並且第五遠端92爲斜面。擴張管90的第五近端91可以被配置爲易於把持的提把，並用魯爾鎖定機構，以允許對一個注射器的附連。在本實施例中，在擴張管90和鞘管20的近端21即近端鞘管30的第一近端31之間的界面處設有連接機構35。該連接機構35較佳爲螺紋連接機構或者螺釘連接機構，以保證擴張管90和鞘管20的穩定連接，比如，該連接機構35爲一螺釘和對應的螺釘孔，它允許擴張管90被接合到近端鞘管的第一近端31之後，在連接機構上的螺釘可以被取出，而擴張管90從鞘管的內腔23取出。又如，連接機構35是透過纏繞的擴張管90和鞘管20的魯爾鎖定機構進行。這將防止擴張管90脫離鞘管20並穿過主體的通道中。擴張管90的外表面設有刻度96，可以清楚地觀察擴張管90的***深度。In this embodiment, as shown in FIG. 3, the expansion tube 90 is an instrument of laparoscopic technology. The expansion tube 90 is made of rigid, semi-rigid or flexible material, and may have a shaft and an outer surface 94. Smooth, it is a solid structure or a structure with a hollow center. The expansion tube 90 has a fifth proximal end 91 and a fifth distal end 92, inserted from the first proximal end 31 of the proximal sheath, and inserted into the sheath 20 through the first lumen 33 and the second lumen 43. The fifth distal end 92 may be straight, rounded, tapered, or tapered. The expansion tube 90 is adapted to be closely attached to the inner wall of the sheath tube 20. Preferably, the expansion tube 90 has a hollow center forming a fifth inner cavity and a tapered fifth distal end 92, and the guide wire can be passed through the fifth inner cavity. More preferably, the expansion tube 90 is solid and the fifth distal end 92 is beveled. The fifth proximal end 91 of the expansion tube 90 can be configured as an easy-to-handle handle with a luer locking mechanism to allow attachment of a syringe. In this embodiment, a connecting mechanism 35 is provided at the interface between the expansion tube 90 and the proximal end 21 of the sheath tube 20, that is, the first proximal end 31 of the proximal sheath tube 30. The connection mechanism 35 is preferably a threaded connection mechanism or a screw connection mechanism to ensure a stable connection between the expansion tube 90 and the sheath tube 20. For example, the connection mechanism 35 is a screw and a corresponding screw hole, which allows the expansion tube 90 to be joined. After reaching the first proximal end 31 of the proximal sheath, the screw on the connecting mechanism can be removed, and the dilation tube 90 is removed from the inner cavity 23 of the sheath. For another example, the connecting mechanism 35 is performed through the luer locking mechanism of the wound expansion tube 90 and the sheath tube 20. This will prevent the expansion tube 90 from escaping from the sheath 20 and passing through the passage of the main body. The outer surface of the expansion tube 90 is provided with a scale 96, so that the insertion depth of the expansion tube 90 can be clearly observed.

在本實施例中，如圖3所示，活動密封蓋100，是指經配置以適合近端鞘管30的第一近端31。中心開口可以是自密封的，活動密封蓋100可以由橡膠、矽樹脂或已知在本領域中可接受的任何材料製成。其中心設有一個供內視鏡穿過的通孔101，在沒有內視鏡穿過時，該通孔101可以透過一密封塞進行密封。In this embodiment, as shown in FIG. 3, the movable sealing cover 100 refers to the first proximal end 31 of the proximal sheath 30 configured to fit. The central opening may be self-sealing, and the movable sealing cover 100 may be made of rubber, silicone, or any material known to be acceptable in the art. A through hole 101 for the endoscope to pass through is provided in the center. When no endoscope passes through, the through hole 101 can be sealed by a sealing plug.

如圖8和圖9所示，所述的負壓吸引器包括採集容器80，所述的採集容器80包括瓶體84和與所述瓶體以可拆卸方式連接的上端蓋體81，所述的瓶體84的高度爲上端蓋體81的高度的1～4倍，較佳爲1～3倍，更佳爲上端蓋體81和瓶體84的高度比爲3:7，採用該比例的優點在於，可以提高採集容器80的穩定性，在上端蓋體81設置有多個組件的情况下，適當的上端蓋體81和瓶體84的比例有助於密封性能的保持，所述的瓶體84和上端蓋體81透過連接件連接，連接件的選擇可以爲多種，如瓶體84上設有密封圈，上端蓋體81與瓶體84配合的地方設有容納該密封圈的容納槽，又或者，瓶體84和上端蓋體81在分別具有密封的情况下，採用螺栓固定連接，又或者，瓶體84和上端蓋體81在分別具有密封的情况下，採用可緊固的塑膠綁帶或者可鎖緊的金屬條進行固定連接。所述的採集容器80的上端蓋體81上設有入口管82和出口管83，所述的入口管82透過連接管70與對應的第一側管50相連。連接管70可以是剛性的、半剛性或柔性管中的任何醫用級材料。連接管70具有一個連接管近端71和一個連接管遠端72、連接管內腔73。在具有應用中，連接管70是透明的PVC管。採集容器80是任何形狀的容器。入口管82可以具有或可以不具有一個單向閥，以防止流體和其他物質返流進入連接管70。出口管83或沿出口管83的任意位置可裝配有類似防止小結石或異物片段或其他材料流入收集容器80機構的篩子85。入口管82部具有連接機構，用於連接到連接管70。出口管83透過一根輔助連接管78連接到一個標準的負壓抽吸機，如圖10所示。As shown in Figures 8 and 9, the negative pressure aspirator includes a collection container 80. The collection container 80 includes a bottle body 84 and an upper end cover 81 detachably connected to the bottle body. The height of the bottle body 84 is 1 to 4 times the height of the upper end cap body 81, preferably 1 to 3 times, and more preferably the height ratio of the upper end cap body 81 and the bottle body 84 is 3:7, using this ratio The advantage is that the stability of the collection container 80 can be improved. When the upper end cover 81 is provided with multiple components, a proper ratio of the upper end cover 81 to the bottle body 84 helps to maintain the sealing performance. The body 84 and the upper end cover body 81 are connected through a connecting piece. The choice of connecting pieces can be various. For example, a sealing ring is provided on the bottle body 84, and the upper end cover body 81 and the bottle body 84 are fitted with a receiving groove for accommodating the sealing ring. Or alternatively, the bottle body 84 and the upper end cover 81 are connected by bolts when they are sealed separately, or the bottle body 84 and the upper end cover 81 are connected by a fastenable plastic when they are sealed separately. Strap or lockable metal strip for fixed connection. The upper end cover 81 of the collection container 80 is provided with an inlet pipe 82 and an outlet pipe 83, and the inlet pipe 82 is connected to the corresponding first side pipe 50 through the connecting pipe 70. The connecting tube 70 may be any medical grade material in a rigid, semi-rigid or flexible tube. The connecting tube 70 has a connecting tube proximal end 71, a connecting tube distal end 72, and a connecting tube lumen 73. In some applications, the connecting pipe 70 is a transparent PVC pipe. The collection container 80 is a container of any shape. The inlet pipe 82 may or may not have a one-way valve to prevent fluid and other substances from flowing back into the connecting pipe 70. The outlet pipe 83 or any position along the outlet pipe 83 may be equipped with a sieve 85 similar to a mechanism for preventing small stones, foreign body fragments or other materials from flowing into the collection container 80. The inlet pipe 82 has a connecting mechanism for connecting to the connecting pipe 70. The outlet pipe 83 is connected to a standard negative pressure suction machine through an auxiliary connecting pipe 78, as shown in FIG. 10.

在本實施例中，出口管83安裝有具有三通閥。三通閥的直腔88連接到負壓系統而直角腔89被連接到注射器。在正常操作中的直角腔閉合。然而，當有結石碎片、血塊或組織碎片阻塞出口管83，該直角腔89可被打開以利用附加注射器沖洗來清除阻塞物。In this embodiment, the outlet pipe 83 is installed with a three-way valve. The straight cavity 88 of the three-way valve is connected to the negative pressure system and the right angle cavity 89 is connected to the syringe. The right-angle cavity is closed in normal operation. However, when stone fragments, blood clots, or tissue fragments block the outlet tube 83, the right-angle cavity 89 can be opened to flush the blockage with an additional syringe.

在實際應用中，將活動密封蓋100取下，然後將擴張管90從第一近端31***，並透過鎖緊機構35鎖定在鞘管20的近端21(即近端鞘管30的第一近端31)上，透過擴張管90將遠端鞘管40引導至需要吸取碎石或者其他人體組織碎片的部位，然後將擴張管90取下，將安裝有內視鏡的活動密封蓋100蓋到鞘管20的近端(即近端鞘管30的第一近端31)上，透過內視鏡協助定位吸取碎石或者其他人體組織碎片，當碎石或者其他人體組織碎片的體積較大，但是又小於第二內腔43直徑時，將內視鏡抽至標記帶位置，然後透過負壓吸出。在此過程中，負壓是透過負壓吸引器來提供的，透過收集容器80，可以有效地避免回吸、堵塞標準的負壓抽吸機如真空泵等問題，可以透過第一側管50上所連接的壓力調節機構110調節壓力，整個操作程序簡單，加工容易，能夠有效地移除碎石或組織碎片，更爲重要的是，透過遠端鞘管40的第二遠端42上的可擴大結構120可以有效的擴大碎石或者組織碎片移除的範圍，提高了移除效率。透過增設該第二側管60，可以附加輸入更多的設備，此外還可以作爲碎石或者組織碎片的通道，提高碎石或者組織碎片移除的準確性。In practical applications, the movable sealing cap 100 is removed, and then the expansion tube 90 is inserted from the first proximal end 31, and locked to the proximal end 21 of the sheath 20 (that is, the first proximal end of the sheath 30) through the locking mechanism 35 On a proximal end 31), the distal sheath 40 is guided through the dilation tube 90 to the site where gravel or other human tissue fragments need to be sucked, and then the dilation tube 90 is removed, and the movable sealing cover 100 with the endoscope is installed. Cover the proximal end of the sheath 20 (that is, the first proximal end 31 of the proximal sheath 30), through the endoscope to assist in positioning and sucking gravel or other human tissue fragments, when the volume of the gravel or other human tissue fragments is larger When it is large but smaller than the diameter of the second inner cavity 43, the endoscope is drawn to the position of the marking tape, and then sucked out through negative pressure. In this process, the negative pressure is provided through a negative pressure suction device. Through the collection container 80, the problem of sucking back and blocking the standard negative pressure suction machine such as vacuum pump can be effectively avoided. It can be passed through the first side tube 50. The connected pressure adjusting mechanism 110 adjusts the pressure, the whole operation procedure is simple, the processing is easy, and it can effectively remove the gravel or tissue fragments. More importantly, the second distal end 42 of the distal sheath 40 can be The expansion structure 120 can effectively expand the removal range of crushed stones or tissue fragments, and improve the removal efficiency. By adding the second side tube 60, more equipment can be added, and it can also be used as a passage for crushed stones or tissue fragments to improve the accuracy of removing the crushed stones or tissue fragments.

實施例2Example 2

如圖12a、12b、13a、13b所示，與實施例1大致相同，不同的地方在於，在本實施例中，所述的鞘管20的外側設有一用於***導絲的輔助通道130，該輔助通道130包括第四近端131和第四遠端132以及第四內腔133，導絲***到第四內腔133內，所述的輔助通道130的第四遠端132超出所述的遠端鞘管的第二遠端42，如圖13a和13b所示，或者與第二遠端42齊平，如圖12a和12b所示，較佳地，其超出所述的第二遠端42，超出距離大約爲1公分、2公分3公分或小於5公分，輔助通道130協助定位所述鞘管的遠端22在緊靠著結石或異物的位置。此外，輔助通道130還可用於引導額外的沖洗、導管、異物籃、逆止儀器或設備，以接近結石或異物的位置，該額外的沖洗、導管、異物籃、逆止儀器或設備透過輔助通道130輸送。As shown in Figures 12a, 12b, 13a, and 13b, they are roughly the same as Embodiment 1, except that, in this embodiment, the outer side of the sheath 20 is provided with an auxiliary channel 130 for inserting a guide wire. The auxiliary channel 130 includes a fourth proximal end 131, a fourth distal end 132, and a fourth lumen 133. The guide wire is inserted into the fourth lumen 133. The fourth distal end 132 of the auxiliary channel 130 extends beyond the The second distal end 42 of the distal sheath, as shown in Figures 13a and 13b, or flush with the second distal end 42, as shown in Figures 12a and 12b, preferably extends beyond the second distal end 42. The excess distance is about 1 cm, 2 cm, 3 cm, or less than 5 cm. The auxiliary channel 130 helps to locate the distal end 22 of the sheath close to the stone or foreign body. In addition, the auxiliary channel 130 can also be used to guide additional flushing, catheters, foreign body baskets, backstop instruments or equipment to approach the location of stones or foreign bodies. The additional flushing, catheters, foreign body baskets, backstop instruments or equipment pass through the auxiliary channels 130 delivery.

導絲透過該輔助通道130可以協助鞘管20精確定位，提高碎石或者組織碎片吸取時的準確性。The guide wire through the auxiliary channel 130 can assist in the precise positioning of the sheath 20 and improve the accuracy of the extraction of gravel or tissue fragments.

以上所述的僅爲本創作的較佳實施例，凡在本創作的精神和原則範圍內所作的任何修改、等同替換和改進等，均應包含在本創作的保護範圍之內。The above are only the preferred embodiments of this creation, and any modification, equivalent replacement and improvement made within the spirit and principle of this creation should be included in the protection scope of this creation.

10:負壓吸引裝置 20:鞘管 21:近端 22:遠端 23:內腔 24:外表面 30:近端鞘管 31:第一近端 32:第一遠端 33:第一內腔 34:外表面 35:連接機構 36:標記帶 40:遠端鞘管 41:第二近端 42:第二遠端 43:第二內腔 44:外表面 45:鎖緊件 46:測量標記 50:第一側管 51:第三近端 52:第三遠端 53:第三內腔 60:第二側管 61:第六近端 62:第六遠端 63:內腔 70:連接管 71:連接管近端 72:連接管遠端 73:連接管內腔 78:輔助連接管 80:採集容器 81:上端蓋體 82:入口管 83:出口管 84:瓶體 85:篩子 88:直腔 89:直角腔 90:擴張管 91:第五近端 92:第五遠端 94:外表面 96:刻度 100:活動密封蓋 101:通孔 110:壓力調節機構 120:可擴大結構 130:輔助通道 131:第四近端 132:第四遠端 133:第四內腔 A:角度 B:角度10: Negative pressure suction device 20: sheath 21: Near end 22: remote 23: inner cavity 24: outer surface 30: Proximal sheath 31: first proximal 32: First remote 33: The first cavity 34: outer surface 35: connecting mechanism 36: Marker tape 40: Distal sheath 41: second proximal 42: second remote 43: second cavity 44: outer surface 45: Locking parts 46: measurement mark 50: first side tube 51: Third Near End 52: third far end 53: Third cavity 60: second side tube 61: sixth proximal 62: sixth far end 63: inner cavity 70: connecting pipe 71: proximal end of connecting tube 72: Connecting tube distal end 73: connecting tube lumen 78: auxiliary connecting pipe 80: Collection container 81: Upper end cover 82: inlet pipe 83: export pipe 84: bottle body 85: Sieve 88: straight cavity 89: Right Angle Cavity 90: expansion tube 91: Fifth Near End 92: Fifth Far End 94: outer surface 96: scale 100: movable sealing cover 101: Through hole 110: Pressure regulating mechanism 120: Expandable structure 130: auxiliary channel 131: Fourth Near End 132: Fourth remote 133: The fourth cavity A: Angle B: Angle

圖1爲本創作實施例1的鞘管立體圖；圖2爲本創作實施例1的具有標記帶的鞘管的立體圖；圖3爲本創作實施例1的立體剖視圖；圖4爲本創作實施例1的主視圖；圖5爲本創作實施例1的後視圖；圖6爲本創作實施例1的俯視圖；圖7爲本創作實施例1的仰視圖；圖8爲本創作實施例1的一種負壓吸引裝置的立體圖；圖9爲本創作實施例1的另一種負壓吸引裝置的立體圖；圖10爲本創作實施例1的具有可擴大結構的遠端鞘管剖視圖；圖11爲本創作實施例1的具有可擴大結構的遠端鞘管在擴大情况下的剖視圖；圖12a爲本創作實施例2的一種實現形式的主視圖；圖12b爲本創作實施例2的一種實現形式的剖視圖；圖13a爲本創作實施例2的另一種實現形式的主視圖；圖13b爲本創作實施例2的另一種實現形式的剖視圖。 Figure 1 is a three-dimensional view of the sheath of the creative embodiment 1; Figure 2 is a perspective view of the sheath with marker tape of Creation Example 1; Figure 3 is a three-dimensional cross-sectional view of Creative Example 1; Figure 4 is a front view of Creative Embodiment 1; Figure 5 is a rear view of Creative Embodiment 1; Figure 6 is a top view of Creative Example 1; Figure 7 is a bottom view of Creative Embodiment 1; Figure 8 is a three-dimensional view of a negative pressure suction device of Creative Embodiment 1; Fig. 9 is a three-dimensional view of another negative pressure suction device of creative embodiment 1; Figure 10 is a cross-sectional view of the distal sheath with an expandable structure of Creative Embodiment 1; 11 is a cross-sectional view of the distal sheath with an expandable structure of Creation Embodiment 1 in an expanded condition; Figure 12a is a front view of an implementation form of Creative Embodiment 2; Figure 12b is a cross-sectional view of an implementation form of Creative Embodiment 2; Figure 13a is a front view of another form of realization of Creative Embodiment 2; Figure 13b is a cross-sectional view of another implementation form of Creative Embodiment 2.

10:負壓吸引裝置 10: Negative pressure suction device

20:鞘管 20: sheath

24:外表面 24: outer surface

40:遠端鞘管 40: Distal sheath

50:第一側管 50: first side tube

60:第二側管 60: second side tube

88:直腔 88: straight cavity

89:直角腔 89: Right Angle Cavity

90:擴張管 90: expansion tube

96:刻度 96: scale

110:壓力調節機構 110: Pressure regulating mechanism

Claims

一種負壓吸引裝置，包括負壓吸引器、擴張管、中空的鞘管；其特徵在於，所述鞘管由近端鞘管和遠端鞘管連接而成，在所述近端鞘管的近端設有活動密封蓋，所述擴張管能夠由所述近端鞘管的近端***並延伸到所述遠端鞘管的遠端並把所述擴張管固定在所述近端鞘管上；所述近端鞘管上連接有至少2個中空的側管，所述負壓吸引器連接在其中一個側管遠離所述鞘管的一端。A negative pressure suction device, comprising a negative pressure suction device, a dilation tube, and a hollow sheath; it is characterized in that the sheath is formed by connecting a proximal sheath and a distal sheath. The proximal end is provided with a movable sealing cover, the expansion tube can be inserted from the proximal end of the proximal sheath tube and extended to the distal end of the distal sheath tube and the expansion tube is fixed to the proximal sheath tube On; the proximal sheath is connected with at least two hollow side tubes, and the negative pressure suction device is connected to one end of the side tube away from the sheath.

如請求項1所述的負壓吸引裝置，其中，所述鞘管的外側設有輔助通道，所述鞘管和所述輔助通道形成雙腔結構。The negative pressure suction device according to claim 1, wherein an auxiliary channel is provided on the outer side of the sheath tube, and the sheath tube and the auxiliary channel form a double-lumen structure.

如請求項1或2所述的負壓吸引裝置，其中，在所述遠端鞘管的遠端設有一個可擴大結構。The negative pressure suction device according to claim 1 or 2, wherein an expandable structure is provided at the distal end of the distal sheath.

如請求項1所述的負壓吸引裝置，其中，所述可擴大結構爲可充放氣的氣囊或者可以擴大或收縮的膨脹彈簧。The negative pressure suction device according to claim 1, wherein the expandable structure is an air bag that can be inflated and deflated or an expansion spring that can be expanded or contracted.

如請求項1所述的負壓吸引裝置，其中，在所述鞘管內壁設有不透射線的夾層，或者在所述鞘管外壁設有不透射線的夾層，或者在所述鞘管的管壁鑲嵌有不透射線的夾層。The negative pressure suction device according to claim 1, wherein a radiopaque interlayer is provided on the inner wall of the sheath, or a radiopaque interlayer is provided on the outer wall of the sheath, or the sheath is The wall of the tube is inlaid with a radiopaque interlayer.

如請求項1所述的負壓吸引裝置，其中，所述活動密封蓋上設有用於***內視鏡的通孔，所述通孔的直徑與內視鏡的外徑相適應。The negative pressure suction device according to claim 1, wherein the movable sealing cover is provided with a through hole for inserting the endoscope, and the diameter of the through hole is adapted to the outer diameter of the endoscope.

如請求項1所述的負壓吸引裝置，其中，所述側管的內徑爲所述近端鞘管的中空部直徑的0.8～1.2倍；或者所述側管的內徑爲所述遠端鞘管的中空部直徑的0.8～1.2倍。The negative pressure suction device according to claim 1, wherein the inner diameter of the side tube is 0.8 to 1.2 times the diameter of the hollow portion of the proximal sheath; or the inner diameter of the side tube is the distal 0.8 to 1.2 times the diameter of the hollow part of the end sheath.

如請求項1所述的負壓吸引裝置，其中，所述側管沿所述近端鞘管方向延伸，並且所述側管與所述近端鞘管的夾角爲20°～70°。The negative pressure suction device according to claim 1, wherein the side tube extends in the direction of the proximal sheath tube, and an included angle between the side tube and the proximal sheath tube is 20° to 70°.

如請求項1所述的負壓吸引裝置，其中，所述鞘管爲剛性、半剛性或柔性管，所述近端鞘管爲透明或半透明結構；所述連接有負壓吸引器的側管與近端鞘管的連接處的上方設有標記帶；所述側管上連接有用於調節壓力的壓力調節機構。The negative pressure suction device according to claim 1, wherein the sheath tube is a rigid, semi-rigid or flexible tube, and the proximal sheath tube is a transparent or semi-transparent structure; the side connected with the negative pressure suction device A marking band is arranged above the connection between the tube and the proximal sheath; the side tube is connected with a pressure adjustment mechanism for adjusting the pressure.

如請求項1所述的負壓吸引裝置，其中，所述負壓吸引器包括採集容器，所述採集容器包括瓶體和與所述瓶體以可拆卸方式連接的上端蓋體，所述採集容器的上端蓋體上設有入口管和出口管，所述入口管透過一連接管與對應的側管相連，所述出口管與負壓産生設備相連；所述出口管透過一三通閥與所述負壓産生設備相連。The negative pressure suction device according to claim 1, wherein the negative pressure suction device includes a collection container, the collection container includes a bottle body and an upper cover body detachably connected to the bottle body, and the collection container The upper end cap of the container is provided with an inlet pipe and an outlet pipe. The inlet pipe is connected to the corresponding side pipe through a connecting pipe. The outlet pipe is connected to the negative pressure generating device; the outlet pipe is connected to the outlet pipe through a three-way valve. The negative pressure generating device is connected.