阅读说明：本技术 一种新型腹膜透析管 (Novel peritoneal dialysis tube ) 是由 秦晓华 高明明 邹宏昌 朱淑英 徐曼 于 2021-09-18 设计创作，主要内容包括：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, and belongs to the technical field of medical instruments. The novel peritoneal dialysis tube comprises a membrane dialysis tube structure and a fixing structure. The tectorial membrane dialysis tube structure includes external end 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, set up drainage channel in the inner wall of abdominal cavity end pipe, intraductal 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. The invention adopts an elliptical tube body design to reduce the occurrence rate of lateral displacement of the tube body, and the tube wall side holes adopt a low-out-high-in design to realize the effect of the side holes on the auxiliary drainage tube, thereby reducing the risk of drainage obstacle caused by blockage.)

1. A novel peritoneal dialysis tube is characterized by comprising

The membrane dialysis tube structure (100) comprises an external end tube (110), a subcutaneous tunnel tube (120), an abdominal cavity end tube (130) and a polyester sleeve (160), wherein the subcutaneous 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), the polyester sleeve (160) is fixed on the outer surface of the subcutaneous tunnel tube (120), a drainage channel (131) is arranged in the inner wall of the abdominal cavity end tube (130), an external tube side hole (132) is arranged on the outer surface of the drainage channel (131), an internal tube side hole (133) is arranged on the inner surface of the drainage channel (131), and the internal tube side hole (133) is positioned on one side of the external tube hole (132);

the fixing structure (200) comprises a support piece (230) and an extrusion piece (240), wherein the support piece (230) is fixed at one end of the terylene sleeve (160), and the extrusion piece (240) is fixed on the support piece (230).

2. The novel peritoneal dialysis tube of claim 1, wherein an internally threaded tube (111) is fixed to the other end of the external end tube (110), and a connecting tube (140) is connected to the internal thread of the internally threaded tube (111).

3. A new peritoneal dialysis tube as claimed in claim 2, characterized in that the end of the connecting tube (140) is threaded with an end cap (150).

4. The novel peritoneal dialysis tube of claim 1, wherein the cross-section of the peritoneal end tube (130) is oval, and the tube-outside holes (132) and the tube-inside holes (133) are circumferentially distributed on the peritoneal end tube (130).

5. The new peritoneal dialysis tube of claim 1 wherein the surface of the subcutaneous tunnel tube (120) and the celiac tip tube (130) is provided with a visualization line (170).

6. The novel peritoneal dialysis tube as claimed in claim 1, wherein the supporting member (230) comprises a fixing frame (231) and a clamping plate (232), the fixing frame (231) is fixed at the other end of the dacron sleeve (160), the clamping plate (232) is symmetrically fixed at the upper end and the lower end of the fixing frame (231), the clamping plate (232) is clamped on the surface of the subcutaneous tunnel tube (120), and the top surface of the fixing frame (231) is provided with a groove (233).

7. The novel peritoneal dialysis tube of claim 6, wherein the extrusion component (240) comprises a fixed block (241) and a threaded post (243), the fixed block (241) is fixed on the top surface of the fixed frame (231), a sliding groove (242) is formed in the fixed block (241), the threaded post (243) rotatably penetrates through the sliding groove (242), a sliding block (244) is connected to the surface of the threaded post (243) in a threaded manner, the sliding block (244) is slidably connected with the inner surface of the sliding groove (242), the sliding block (244) penetrates through the groove (233), and an extrusion part (245) is fixed at the end of the sliding block (244).

8. The novel peritoneal dialysis tube of claim 7, wherein the cross-section of the slider (244) is square, and the slider (244) and the chute (242) are matched.

9. The novel peritoneal dialysis tube of claim 7, wherein a rotating portion (2431) is fixed to the other end of the threaded post (243), and the rotating portion (2431) is located on the top surface of the fixed block (241).

10. The novel peritoneal dialysis tube of claim 7, wherein the squeezing portion (245) comprises a squeezing plate (2451) and pressing teeth (2452), the squeezing plate (2451) is fixedly connected with the end of the sliding block (244), and the pressing teeth (2452) are fixed at the bottom of the squeezing plate (2451) at equal intervals.

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 membrane dialysis tube structure 100 and a fixing structure 200.

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

Referring to fig. 1-6, the structure 100 of the membrane-covered dialysis tube includes an external end tube 110, a subcutaneous tunnel tube 120, an abdominal cavity end tube 130 and a polyester sleeve 160, the subcutaneous 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, the polyester sleeve 160 is fixed on the outer surface of the subcutaneous tunnel tube 120, a drainage channel 131 is opened in the inner wall of the abdominal cavity end tube 130, an external tube hole 132 is opened on the outer surface of the drainage channel 131, an internal tube hole 133 is opened on the inner surface of the drainage channel 131, and the internal tube hole 133 is located on one side of the external tube hole 132.

The other end of the external end tube 110 is fixed with an internal threaded tube 111, the internal thread of the internal threaded tube 111 is connected with a connecting tube 140, and the connecting tube 140 can be conveniently connected with an external peritoneal dialysis tube and a liquid exchange tube; the end of the connecting tube 140 is screwed with an end cap 150, wherein the end cap 150 can facilitate sealing of the lumen; the cross section of the abdominal cavity end pipe 130 is arranged in an oval shape, the outer pipe side hole 132 and the inner pipe side hole 133 are circumferentially distributed on the abdominal cavity end pipe 130, the long axis of the oval abdominal cavity 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 inner pipe side hole 133 and the outer pipe 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 the subcutaneous tunnel tube 120 and the abdominal tip tube 130 are provided with a visualization line 170.

Referring to fig. 1 to 8, the fixing structure 200 includes a supporting member 230 and a pressing member 240, the supporting member 230 is fixed to the other end of the polyester sleeve 160, and the pressing member 240 is fixed to the supporting member 230.

The supporting member 230 comprises a fixing frame 231 and clamping plates 232, the fixing frame 231 is fixed at the other end of the polyester sleeve 160, the clamping plates 232 are symmetrically fixed at the upper end and the lower end of the fixing frame 231, the clamping plates 232 are clamped on the surface of the subcutaneous tunnel tube 120, and the top surface of the fixing frame 231 is provided with a groove 233; the extruded part 240 comprises a fixed block 241 and a threaded column 243, the fixed block 241 is fixed on the top surface of the fixed frame 231, a sliding groove 242 is formed in the fixed block 241, the threaded column 243 rotates to penetrate through the sliding groove 242, a bearing is connected to the surface of the threaded column 243 in an interference mode, the bearing is embedded in the sliding groove 242, the threaded column 243 can be conveniently fixed through the arrangement, threads of the threaded column 243 rotate conveniently, a sliding block 244 is connected to the surface of the threaded column 243 in a threaded mode, the sliding block 244 is connected with the inner surface of the sliding groove 242 in a sliding mode, the sliding block 244 penetrates through the groove 233, and an extruded part 245 is fixed to the end portion of the sliding block 244.

The cross section of the sliding block 244 is square, the sliding block 244 and the sliding chute 242 are arranged in a matching way, and the sliding block 244 with the square cross section can prevent the sliding block 244 from being driven with the threaded column 243, so that the use is influenced; a rotating part 2431 is fixed at the other end of the threaded post 243, the rotating part 2431 is located on the top surface of the fixed block 241, the rotating part 2431 is a cylindrical block, and the threaded post 243 can be conveniently rotated by the arrangement of the rotating part 2431; the extrusion part 245 comprises an extrusion plate 2451 and pressing teeth 2452, the extrusion plate 2451 is fixedly connected with the end part of the sliding block 244, the pressing teeth 2452 are fixed at the bottom of the extrusion plate 2451 at equal intervals, the pressing teeth 2452 are arranged in a conical shape, and the arrangement of the pressing teeth 2452 can reduce the contact area between the pressing teeth 2452 and the subcutaneous tunnel pipe 120, so that the subcutaneous 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 abdominal cavity end tube 130 is inserted into the abdominal cavity of a patient, then the external end tube 110 is connected with the external liquid bag tube through the connecting tube 140, at this time, the rotating part 2431 drives the threaded column 243 to rotate, the sliding block 244 drives the extrusion plate 2451 and the pressing teeth 2452 to move towards the inside of the sliding chute 242, at this time, the subcutaneous tunnel tube 120 is communicated with the external end tube 110 and the abdominal cavity end tube 130, liquid flows towards the abdominal cavity of the patient through the abdominal cavity end tube 130 in the liquid injection process, and simultaneously can flow towards the abdominal cavity through the drainage channel 131, the external side hole 132 and the internal side hole 133, because the abdominal cavity end tube 130 adopts an elliptical tube body design, the tension of deformation and displacement of the abdominal cavity end tube 130 is increased, the possibility of lateral displacement is reduced, the external side hole 132 and the internal 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 abdominal cavity 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.