CN113730694A - Novel peritoneal dialysis tube - Google Patents

Abstract

Translated fromChinese

本发明提供了一种新型腹膜透析管，属于医疗器械技术领域。该新型腹膜透析管包括覆膜透析管结构和固定结构。所述覆膜透析管结构包括体外端管、腹腔端管和涤纶套，所述皮下隧道管固定在所述体外端管的一侧，所述腹腔端管固定在所述皮下隧道管的一侧，所述涤纶套固定在所述皮下隧道管的外表面，所述腹腔端管的内壁中开设有引流通道，所述管内侧孔位于所述管外侧孔的一侧，所述固定结构包括支撑件和挤压件，所述支撑件固定在所述涤纶套的一端，所述挤压件固定在所述支撑件上。本发明采用了椭圆式管体设计来降低管体侧方移位的发生率，管壁侧孔采用低出高入的设计来实现侧孔的副引流管作用，降低堵塞带来的引流障碍风险。

The invention provides a novel peritoneal dialysis tube, which belongs to the technical field of medical devices. The novel peritoneal dialysis tube includes a membrane-covered dialysis tube structure and a fixed structure. The membrane-covered dialysis tube structure includes an external end tube, an abdominal cavity end tube and a polyester sleeve, the subcutaneous tunnel tube is fixed on one side of the external end tube, and the abdominal cavity end tube is fixed on one side of the subcutaneous tunnel tube , the polyester sleeve is fixed on the outer surface of the subcutaneous tunnel tube, a drainage channel is opened in the inner wall of the abdominal cavity end tube, the inner hole of the tube is located on one side of the outer hole of the tube, and the fixing structure includes a support A piece and an extrusion piece, the support piece is fixed on one end of the polyester sleeve, and the extrusion piece is fixed on the support piece. The invention adopts an elliptical tube body design to reduce the occurrence rate of lateral displacement of the tube body, and the side hole of the tube wall adopts a low-out and high-in design to realize the role of the auxiliary drainage tube of the side hole and reduce the risk of drainage obstruction caused by blockage. .

Description

Novel peritoneal dialysis tube

Technical Field

The invention relates to the technical field of medical instruments, in particular to a novel peritoneal dialysis tube.

Background

The peritoneal dialysis pipe is an important pipeline for peritoneal dialysis patients to perform dialysis, peritoneal dialysis liquid is delivered into an abdominal cavity through the peritoneal dialysis pipe, most of the peritoneal dialysis liquid implanted into the abdominal cavity at present is the peritoneal dialysis pipe made of soft materials, at present, Tenck-hoff straight pipes are mostly used in China, the lowest part (rectal bladder/uterine pouch) of a true pelvis needs to be placed at the tail end of the peritoneal dialysis pipe during implantation, and the peritoneal dialysis pipe is implanted into two operation modes of opening and laparoscope at present. Both the crimped and straight tubes have cylindrical tube bodies, which result in the same deformation force required to bend the tube body in any direction. However, when the tube body is implanted into the abdominal cavity, the tube body can be fixed in the front and the back due to the fact that the intestinal tube is arranged behind the abdominal wall in the front, the two sides of the tube body are free due to the fact that the tube body is free left and right under the extrusion of tissues, when the free range is too large, the tube body is not easy to reset due to the fact that the tube body deforms and rebounds due to the soft side of the tube body, the peritoneal dialysis tube can be shifted, and the peritoneal dialysis solution is not smooth in entering and exiting. The peritoneal dialysis catheter which can not be restored in time increases the chance of wrapping the tail end of the drainage catheter by the omentum majus because the tail end of the catheter body moves upwards at the moment. The straight tube type penetrating tube design of the side hole enables the main tube cavity to be easily entered when the omentum majorana invades the side hole, so that the blockage tube is caused, the blockage tube highly takes place at the highest position of the side hole, and the tube cavity can not drain incomplete drainage even.

Disclosure of Invention

In order to make up for the defects, the invention provides a novel peritoneal dialysis tube, aiming at improving the problems that the peritoneal dialysis tube is seriously obstructed in and out liquid and the lateral hole adopts a straight cylinder type, and a large net membrane easily grows in a main tube through the lateral hole due to the fact that the lateral floating tube is shifted and the position of an official cavity blocking tube is at the high position of the lateral hole.

The invention is realized by the following steps:

the invention provides a novel peritoneal dialysis tube which comprises a membrane dialysis tube structure and a fixing structure.

The tectorial membrane dialysis tubing structure includes external end pipe, subcutaneous tunnel pipe, abdominal cavity end pipe and dacron cover, subcutaneous tunnel pipe fixes one side of external end pipe, abdominal cavity end pipe fixes one side of subcutaneous tunnel pipe, the dacron cover is fixed the surface of subcutaneous tunnel pipe, drainage channel has been seted up in abdominal cavity end pipe's the inner wall, the outside of tubes side opening has been seted up to drainage channel's surface, the inside pipe side opening has been seted up to drainage channel's internal surface, the inside pipe side opening is located one side of outside of tubes side opening, fixed knot constructs including support piece and extruded article, support piece fixes the one end of dacron cover, the extruded article is fixed support piece is last.

In one embodiment of the invention, an internal threaded tube is fixed at the other end of the external end tube, and a connecting tube is connected to the internal thread of the internal threaded tube.

In one embodiment of the invention, the end of the connecting tube is threaded with an end cap.

In an embodiment of the present invention, the cross section of the abdominal cavity end tube is disposed in an oval shape, and the tube outer side holes and the tube inner side holes are circumferentially distributed on the abdominal cavity end tube.

In an embodiment of the invention, the surface of the subcutaneous tunnel tube and the abdominal cavity tip tube is provided with a developing line.

In an embodiment of the invention, the supporting member includes a fixing frame and clamping plates, the fixing frame is fixed at the other end of the dacron sleeve, the clamping plates are symmetrically fixed at the upper end and the lower end of the fixing frame, the clamping plates are clamped on the surface of the subcutaneous tunnel pipe, and a groove is formed in the top surface of the fixing frame.

In one embodiment of the invention, the extrusion part comprises a fixed block and a threaded column, the fixed block is fixed on the top surface of the fixed frame, a sliding groove is formed in the fixed block, the threaded column rotatably penetrates through the sliding groove, a sliding block is in threaded connection with the surface of the threaded column, the sliding block is in sliding connection with the inner surface of the sliding groove, the sliding block penetrates through the groove, and an extrusion part is fixed at the end part of the sliding block.

In an embodiment of the present invention, the cross section of the sliding block is square, and the sliding block and the sliding groove are arranged in a matching manner.

In one embodiment of the present invention, a rotating portion is fixed to the other end of the threaded post, and the rotating portion is located on the top surface of the fixed block.

In one embodiment of the invention, the pressing part comprises a pressing plate and pressing teeth, the pressing plate is fixedly connected with the end part of the sliding block, and the pressing teeth are fixed on the bottom of the pressing plate at equal intervals.

The invention has the beneficial effects that: according to the novel peritoneal dialysis tube obtained through the design, in the process of liquid injection, liquid flows to the abdominal cavity of a patient through the abdominal cavity end tube, and simultaneously flows to the abdominal cavity through the drainage channel, the outer side hole of the tube and the inner side hole of the tube.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a first perspective structure of a novel peritoneal dialysis tube provided by an embodiment of the invention;

FIG. 2 is a schematic view of a first perspective, partially exploded cross-sectional view of a novel peritoneal dialysis catheter according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the invention at B of FIG. 2;

FIG. 5 is an enlarged view of FIG. 2 at C;

FIG. 6 is a schematic cross-sectional view of a peritoneal end tube of the novel peritoneal dialysis catheter provided by the embodiment of the invention;

FIG. 7 is a schematic cross-sectional view of a novel peritoneal dialysis tube support member according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a novel extrusion part of a peritoneal dialysis tube according to an embodiment of the invention.

In the figure: 100-a membrane-covered dialysis tube structure; 110-an extracorporeal end tube; 111-an internally threaded tube; 120-subcutaneous tunnel tube; 130-abdominal cavity end tube; 131-a drainage channel; 132-tube outside aperture; 133-side and inside holes of the pipe; 140-connecting tube; 150-an end cap; 160-polyester sleeve; 170-developing line; 200-a fixed structure; 230-a support; 231-a fixing frame; 232-card board; 233-grooves; 240-extrusion; 241-fixed block; 242-chute; 243-threaded column; 2431-rotating part; 244-a slider; 245-an extrusion; 2451-stripper plate; 2452 pressing teeth.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1-8, the present invention provides a technical solution: a novel peritoneal dialysis tube comprises a membranedialysis tube structure 100 and a fixingstructure 200.

The fixingstructure 200 is mounted and fixed on thestructure 100 of the membrane-covered dialysis tube and is used for fixing and intercepting the membrane-covered dialysis tube.

Referring to fig. 1-6, thestructure 100 of the membrane-covered dialysis tube includes anexternal end tube 110, asubcutaneous tunnel tube 120, an abdominalcavity end tube 130 and apolyester sleeve 160, thesubcutaneous tunnel tube 120 is fixed on one side of theexternal end tube 110, the abdominalcavity end tube 130 is fixed on one side of thesubcutaneous tunnel tube 120, thepolyester sleeve 160 is fixed on the outer surface of thesubcutaneous tunnel tube 120, adrainage channel 131 is opened in the inner wall of the abdominalcavity end tube 130, anexternal tube hole 132 is opened on the outer surface of thedrainage channel 131, aninternal tube hole 133 is opened on the inner surface of thedrainage channel 131, and theinternal tube hole 133 is located on one side of theexternal tube hole 132.

The other end of theexternal end tube 110 is fixed with an internal threadedtube 111, the internal thread of the internal threadedtube 111 is connected with a connectingtube 140, and the connectingtube 140 can be conveniently connected with an external peritoneal dialysis tube and a liquid exchange tube; the end of the connectingtube 140 is screwed with anend cap 150, wherein theend cap 150 can facilitate sealing of the lumen; the cross section of the abdominalcavity end pipe 130 is arranged in an oval shape, the outerpipe side hole 132 and the innerpipe side hole 133 are circumferentially distributed on the abdominalcavity end pipe 130, the long axis of the oval abdominalcavity end pipe 130 is parallel to the intestinal wall abdominal wall plane, the short sleeve is perpendicular to the oval abdominal cavity end pipe, and meanwhile, the innerpipe side hole 133 and the outerpipe side hole 132 adopt a low-out high-in design, so that the function of an auxiliary drainage tube can be played, and drainage obstacles caused by the fact that a net membrane invades into a main pipe body can be avoided; the surfaces of thesubcutaneous tunnel tube 120 and theabdominal tip tube 130 are provided with avisualization line 170.

Referring to fig. 1 to 8, thefixing structure 200 includes a supportingmember 230 and apressing member 240, the supportingmember 230 is fixed to the other end of thepolyester sleeve 160, and thepressing member 240 is fixed to the supportingmember 230.

The supportingmember 230 comprises afixing frame 231 andclamping plates 232, thefixing frame 231 is fixed at the other end of thepolyester sleeve 160, theclamping plates 232 are symmetrically fixed at the upper end and the lower end of thefixing frame 231, theclamping plates 232 are clamped on the surface of thesubcutaneous tunnel tube 120, and the top surface of thefixing frame 231 is provided with agroove 233; theextruded part 240 comprises afixed block 241 and a threadedcolumn 243, thefixed block 241 is fixed on the top surface of thefixed frame 231, asliding groove 242 is formed in thefixed block 241, the threadedcolumn 243 rotates to penetrate through thesliding groove 242, a bearing is connected to the surface of the threadedcolumn 243 in an interference mode, the bearing is embedded in thesliding groove 242, the threadedcolumn 243 can be conveniently fixed through the arrangement, threads of the threadedcolumn 243 rotate conveniently, asliding block 244 is connected to the surface of the threadedcolumn 243 in a threaded mode, thesliding block 244 is connected with the inner surface of thesliding groove 242 in a sliding mode, the slidingblock 244 penetrates through thegroove 233, and anextruded part 245 is fixed to the end portion of the slidingblock 244.

The cross section of thesliding block 244 is square, thesliding block 244 and thesliding chute 242 are arranged in a matching way, and thesliding block 244 with the square cross section can prevent the slidingblock 244 from being driven with the threadedcolumn 243, so that the use is influenced; arotating part 2431 is fixed at the other end of the threadedpost 243, therotating part 2431 is located on the top surface of thefixed block 241, therotating part 2431 is a cylindrical block, and the threadedpost 243 can be conveniently rotated by the arrangement of therotating part 2431; theextrusion part 245 comprises anextrusion plate 2451 and pressingteeth 2452, theextrusion plate 2451 is fixedly connected with the end part of thesliding block 244, thepressing teeth 2452 are fixed at the bottom of theextrusion plate 2451 at equal intervals, thepressing teeth 2452 are arranged in a conical shape, and the arrangement of thepressing teeth 2452 can reduce the contact area between thepressing teeth 2452 and thesubcutaneous tunnel pipe 120, so that thesubcutaneous tunnel pipe 120 can be stopped conveniently.

Specifically, the working principle of the novel peritoneal dialysis tube is as follows: when the device is used, the abdominalcavity end tube 130 is inserted into the abdominal cavity of a patient, then theexternal end tube 110 is connected with the external liquid bag tube through theconnecting tube 140, at this time, the rotatingpart 2431 drives the threadedcolumn 243 to rotate, the slidingblock 244 drives theextrusion plate 2451 and thepressing teeth 2452 to move towards the inside of thesliding chute 242, at this time, thesubcutaneous tunnel tube 120 is communicated with theexternal end tube 110 and the abdominalcavity end tube 130, liquid flows towards the abdominal cavity of the patient through the abdominalcavity end tube 130 in the liquid injection process, and simultaneously can flow towards the abdominal cavity through thedrainage channel 131, theexternal side hole 132 and theinternal side hole 133, because the abdominalcavity end tube 130 adopts an elliptical tube body design, the tension of deformation and displacement of the abdominalcavity end tube 130 is increased, the possibility of lateral displacement is reduced, theexternal side hole 132 and theinternal side hole 133 adopt a low-out-high-in design, the omentum can invade the main cavity, and simultaneously has the auxiliary drainage capability, when the main lumen of the abdominalcavity end tube 130 is blocked, the drainage tube still has certain drainage capacity, thereby gaining time for drug treatment and prolonging the service life of the peritoneal dialysis tube.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

Translated fromChinese

1.一种新型腹膜透析管，其特征在于，包括1. a novel peritoneal dialysis tube, is characterized in that, comprises覆膜透析管结构(100)，所述覆膜透析管结构(100)包括体外端管(110)、皮下隧道管(120)、腹腔端管(130)和涤纶套(160)，所述皮下隧道管(120)固定在所述体外端管(110)的一侧，所述腹腔端管(130)固定在所述皮下隧道管(120)的一侧，所述涤纶套(160)固定在所述皮下隧道管(120)的外表面，所述腹腔端管(130)的内壁中开设有引流通道(131)，所述引流通道(131)的外表面开设有管外侧孔(132)，所述引流通道(131)的内表面开设有管内侧孔(133)，所述管内侧孔(133)位于所述管外侧孔(132)的一侧；A membrane-covered dialysis tube structure (100) includes an extracorporeal end tube (110), a subcutaneous tunnel tube (120), an abdominal cavity end tube (130) and a polyester sleeve (160), the subcutaneous The tunnel tube (120) is fixed on one side of the external end tube (110), the abdominal cavity end tube (130) is fixed on one side of the subcutaneous tunnel tube (120), and the polyester sleeve (160) is fixed on the On the outer surface of the subcutaneous tunnel tube (120), the inner wall of the abdominal cavity end tube (130) is provided with a drainage channel (131), and the outer surface of the drainage channel (131) is provided with a tube outer hole (132), The inner surface of the drainage channel (131) is provided with a tube inner hole (133), and the tube inner hole (133) is located on one side of the tube outer hole (132);固定结构(200)，所述固定结构(200)包括支撑件(230)和挤压件(240)，所述支撑件(230)固定在所述涤纶套(160)的一端，所述挤压件(240)固定在所述支撑件(230)上。A fixing structure (200), the fixing structure (200) includes a support piece (230) and an extrusion piece (240), the support piece (230) is fixed at one end of the polyester sleeve (160), the extrusion piece (240) A piece (240) is fixed on the support piece (230).2.根据权利要求1所述的一种新型腹膜透析管，其特征在于，所述体外端管(110)的另一端固定有内螺纹管(111)，所述内螺纹管(111)的内部螺纹连接有连接管(140)。2. A new type of peritoneal dialysis tube according to claim 1, wherein the other end of the external end tube (110) is fixed with an internally threaded tube (111), and the inner threaded tube (111) is The threaded connection is provided with a connecting pipe (140).3.根据权利要求2所述的一种新型腹膜透析管，其特征在于，所述连接管(140)的端部螺纹连接有端帽(150)。3 . The novel peritoneal dialysis tube according to claim 2 , wherein an end cap ( 150 ) is threadedly connected to the end of the connecting tube ( 140 ). 4 .4.根据权利要求1所述的一种新型腹膜透析管，其特征在于，所述腹腔端管(130)的截面成椭圆形设置，所述管外侧孔(132)和所述管内侧孔(133)成周向分布在所述腹腔端管(130)上。4. A new type of peritoneal dialysis tube according to claim 1, characterized in that, the cross section of the abdominal cavity end tube (130) is set in an oval shape, and the tube outside hole (132) and the tube inside hole ( 133) are circumferentially distributed on the abdominal cavity end tube (130).5.根据权利要求1所述的一种新型腹膜透析管，其特征在于，所述皮下隧道管(120)和腹腔端管(130)的表面设置有显影线(170)。5. A novel peritoneal dialysis tube according to claim 1, characterized in that, a developing line (170) is provided on the surfaces of the subcutaneous tunnel tube (120) and the abdominal cavity end tube (130).6.根据权利要求1所述的一种新型腹膜透析管，其特征在于，所述支撑件(230)包括固定架(231)和卡板(232)，所述固定架(231)固定在所述涤纶套(160)的另一端，所述卡板(232)对称固定在所述固定架(231)的上端和下端，所述卡板(232)卡接在所述皮下隧道管(120)的表面，所述固定架(231)的顶面开设有凹槽(233)。6. A novel peritoneal dialysis tube according to claim 1, characterized in that, the support (230) comprises a fixing frame (231) and a clamping plate (232), and the fixing frame (231) is fixed on the On the other end of the polyester sleeve (160), the clamping plate (232) is symmetrically fixed on the upper end and the lower end of the fixing frame (231), and the clamping plate (232) is clamped on the subcutaneous tunnel tube (120) The top surface of the fixing frame (231) is provided with a groove (233).7.根据权利要求6所述的一种新型腹膜透析管，其特征在于，所述挤压件(240)包括固定块(241)和螺纹柱(243)，所述固定块(241)固定在所述固定架(231)的顶面，所述固定块(241)的内部开设有滑槽(242)，所述螺纹柱(243)转动贯穿所述滑槽(242)，所述螺纹柱(243)的表面螺纹连接有滑块(244)，所述滑块(244)与所述滑槽(242)的内表面滑动连接，所述滑块(244)贯穿所述凹槽(233)，所述滑块(244)的端部固定有挤压部(245)。7. A new type of peritoneal dialysis tube according to claim 6, characterized in that, the extrusion part (240) comprises a fixing block (241) and a threaded post (243), and the fixing block (241) is fixed on the On the top surface of the fixing frame (231), a chute (242) is opened inside the fixing block (241), the threaded post (243) rotates through the chute (242), and the threaded post (243) rotates through the chute (242). 243) is threadedly connected with a sliding block (244), the sliding block (244) is slidably connected with the inner surface of the sliding groove (242), and the sliding block (244) penetrates the groove (233), A pressing part (245) is fixed at the end of the sliding block (244).8.根据权利要求7所述的一种新型腹膜透析管，其特征在于，所述滑块(244)的截面为正方形，所述滑块(244)与所述滑槽(242)为相匹配设置。8 . The novel peritoneal dialysis tube according to claim 7 , wherein the cross section of the slider ( 244 ) is square, and the slider ( 244 ) is matched with the chute ( 242 ). 9 . set up.9.根据权利要求7所述的一种新型腹膜透析管，其特征在于，所述螺纹柱(243)的另一端部固定有旋转部(2431)，所述旋转部(2431)位于所述固定块(241)的顶面。9 . The novel peritoneal dialysis tube according to claim 7 , wherein a rotating part ( 2431 ) is fixed on the other end of the threaded post ( 243 ), and the rotating part ( 2431 ) is located in the fixed part. 10 . Top surface of block (241).10.根据权利要求7所述的一种新型腹膜透析管，其特征在于，所述挤压部(245)包括挤压板(2451)和压齿(2452)，所述挤压板(2451)与所述滑块(244)的端部固定连接，所述压齿(2452)等距离固定在所述挤压板(2451)的底部。10. A novel peritoneal dialysis tube according to claim 7, characterized in that the pressing part (245) comprises a pressing plate (2451) and pressing teeth (2452), and the pressing plate (2451) Fixedly connected with the end of the sliding block (244), the pressing teeth (2452) are equidistantly fixed on the bottom of the pressing plate (2451).

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