Rectum balloon dilatation type intestinal function training catheter

Abstract

The utility model discloses a rectum balloon dilatation type intestinal function training catheter, which relates to the field of medical instruments and comprises an outer catheter and an inner catheter, a first side tube and a second side tube are fixedly arranged on two sides of the lower end of the outer catheter respectively, and a first balloon and a second balloon are fixedly arranged on the wall of the outer catheter. A first flow guide channel is arranged in the tube wall of the outer catheter, the two ends of the first flow guide channel are communicated with the first side tube and the first balloon respectively, a second flow guide channel is arranged in the tube wall of the outer catheter, and the two ends of the second flow guide channel are communicated with the second side tube and the second balloon respectively. The device is convenient for neurogenic bowel patients and family members to use by themselves for training to form a regular defecation habit, so that the intestinal function rehabilitation self-protection capability of the patients is improved, the defecation pain of the patients is relieved or relieved, the occurrence of complications is prevented, and the device is safe and effective, conforms to natural therapy, and fully embodies the value and effect of nursing.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and particularly relates to a rectal balloon dilatation type intestinal function training catheter. Background Art

[0002] For patients after rectal resection or with neurogenic bowel, problems such as fecal incontinence or poor defecation control ability are clinically common. In order to reduce the incidence of constipation or fecal incontinence in patients, reduce the dependence on drugs, help patients establish gastrocolic reflex, rectocolic reflex, and rectoanal reflex, and help most patients complete defecation independently using the natural defecation mechanism and control defecation during social activities. At present, for the training and treatment of pelvic floor muscles, it is targeted training and treatment for the sensation, contraction, capacity of the rectum, and internal receptors in the pelvis. Among them, the publication (announcement) number: CN204307193U discloses a double-balloon rectal dilator, including a catheter. The catheter includes a head end and a tail end that are interconnected. A small balloon and a large balloon are provided at a position of the catheter close to the head end, and the small balloon is located inside the large balloon; two side tubes communicating with the catheter are provided at a position of the catheter close to the tail end, and the two side tubes are respectively communicated with the large balloon and the small balloon through two thin tubes.

[0003] In the above solution, by introducing gas and liquid into the interiors of the small balloon and the large balloon, the small balloon and the large balloon are filled and inflated to train with the rectum of the patient. However, it is found in actual use that: since the small balloon and the large balloon are too close, they will squeeze each other after inflation, resulting in poor training effect; in addition, the length of the catheter extending into the patient's rectum cannot be adjusted, and it is impossible to accurately locate and induce defecation (the rectum is 12 - 15 cm, the sigmoid colon is 20 - 60 cm, and the descending colon is 20 cm). For this reason, a rectal balloon dilatation type intestinal function training catheter is proposed. Summary of the Utility Model

[0004] In view of the problems existing in the above-mentioned existing double-balloon rectal dilator, the present utility model is proposed.

[0005] Therefore, the purpose of the present utility model is to provide a rectal balloon dilatation type intestinal function training catheter, which solves the problems raised in the background art.

[0006] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A rectal balloon dilation type intestinal function training catheter, comprising an outer catheter and an inner catheter. On both sides of the lower end of the outer catheter, a first side tube and a second side tube are respectively fixedly provided. On the tube wall of the outer catheter, a first balloon and a second balloon are fixedly provided. Inside the tube wall of the outer catheter, a first diversion channel is provided, and both ends of the first diversion channel are respectively communicated with the first side tube and the first balloon. Inside the tube wall of the outer catheter, a second diversion channel is provided, and both ends of the second diversion channel are respectively communicated with the second side tube and the second balloon. One end of the inner catheter is inserted into the inside of the outer catheter, and an inlet is provided at the other end of the inner catheter. Inside the outer catheter, a rotary extension mechanism connected to one end of the inner catheter is provided.

[0008] Preferably, the rotary extension mechanism comprises a lead screw and a turning handle. At the lower end of the inner catheter, a threaded component is fixedly provided. At the lower end of the outer catheter, a support component is fixedly provided. The lead screw is vertically located inside the outer catheter. The upper end of the lead screw extends into the inside of the inner catheter and is threadedly connected with the threaded component. The lower end of the lead screw extends outside the outer catheter and is rotatably connected with the support component. The turning handle is fixedly arranged at the lower end of the lead screw.

[0009] Preferably, the diameter of the lead screw is smaller than the diameter of the inner catheter. A gap is left between the threaded component and the inner catheter as well as between the support component and the outer catheter.

[0010] Preferably, a limiting block is fixedly provided on the outer side wall of the inner catheter, and a limiting groove matching the limiting block is provided on the inner side wall of the outer catheter.

[0011] Further, when the first balloon and the second balloon are filled, they are elliptical.

[0012] Preferably, scale lines are provided on the tube wall of the inner catheter.

[0013] In the above technical solution, the technical effects and advantages provided by the present utility model:

[0014] In this utility model, through the first balloon and the second balloon arranged on the outer catheter, gas can be introduced into the interior of the first balloon through the first side tube. The expansion of the first balloon can slowly and continuously expand the anus, so as to relieve the spasm of the internal and external anal sphincters. At the same time, it can expand the rectal cavity, induce the rectoanal inhibitory reflex, make the anus expand slowly, promote defecation, and the first balloon can effectively prevent the internal catheter from slipping during the treatment process. Liquid is introduced into the interior of the second balloon through the second side tube, so that the second balloon expands, and the second balloon fits the shape of the intestinal cavity and generates pressure on the rectal wall, stimulating the nerve impulses generated by the receptors in the intestinal wall and the nearby receptors. The nerve impulses reach the defecation center of S2-4 along the pelvic nerve and the hypogastric nerve, and impulses are sent out from this center along the parasympathetic nerve of the pelvic nerve, causing the descending colon, sigmoid colon and rectum to contract, and the internal and external anal sphincters to relax, promoting the feces to be excreted out of the body. The internal catheter inserted into the intestine can complete three modes of flushing, drug administration and enema. At the same time, there is a gap between the first balloon and the second balloon, and the first balloon and the second balloon will not interfere with each other after inflation, improving the training effect.

[0015] In this utility model, through the provided internal catheter, the internal catheter can be extended from the interior of the outer catheter for use, so that the use length of the internal catheter can be adjusted, and thus the use length can be adjusted arbitrarily according to different patients, and the defecation can be accurately induced (12-15 cm in the rectum, 20-60 cm in the sigmoid colon, 20 cm in the descending colon).

[0016] In this utility model, through the provided lead screw and the rotating handle, when it is necessary to adjust the extending length of the internal catheter, the medical staff rotates the rotating handle by hand, and the rotating handle can drive the lead screw to rotate, so that the lead screw can drive the internal catheter to move inside the outer catheter in a spiral manner, thereby being able to adjust the length of the internal catheter inside the outer catheter. The whole process of operation and adjustment is more convenient, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in this utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0018] Figure 1 is a schematic structural diagram of this utility model;

[0019] Figure 2 is of this utility model Figure 1 partial cross-sectional view;

[0020] Figure 3 is of this utility model Figure 2 enlarged schematic view of part A.

[0021] Description of the reference numerals:

[0022] 1. Outer catheter; 2. Inner catheter; 3. First side tube; 4. Second side tube; 5. First balloon; 6. Second balloon; 7. First diversion channel; 8. Second diversion channel; 9. Inlet; 10. Lead screw; 11. Rotating handle; 12. Thread assembly; 13. Support assembly; 14. Limiting block; 15. Limiting groove; 16. Scale line. Detailed implementation manners

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] An embodiment of the present invention discloses a rectal balloon dilatation type intestinal function training catheter.

[0025] The present invention provides a rectal balloon dilatation type intestinal function training catheter as shown in Figure 1-2 which includes an outer catheter 1 and an inner catheter 2. On both sides of the lower end of the outer catheter 1, a first side tube 3 and a second side tube 4 are respectively fixed. Inside the tube wall of the outer catheter 1, a first balloon 5 and a second balloon 6 are fixed. Inside the tube wall of the outer catheter 1, a first diversion channel 7 is provided, and both ends of the first diversion channel 7 are respectively communicated with the first side tube 3 and the first balloon 5. Inside the tube wall of the outer catheter 1, a second diversion channel 8 is provided, and both ends of the second diversion channel 8 are respectively communicated with the second side tube 4 and the second balloon 6. When the first balloon 5 and the second balloon 6 are filled, they are oval. Positive pressure connectors are provided at the ends of the first side tube 3 and the second side tube 4. Through the first side tube 3, gas can be introduced into the first diversion channel 7, and the gas can enter the first balloon 5, so that the first balloon 5 expands and abuts against the inner side of the anus. The expansion of the first balloon 5 can slowly and continuously expand the anus to relieve the spasm of the internal and external sphincters of the anus. At the same time, it expands the rectal cavity, induces the rectoanal inhibitory reflex, slowly expands the anus, promotes defecation, and at the same time, the first balloon 5 can effectively prevent the inner catheter 2 from slipping during the treatment process. By introducing liquid into the second diversion channel 8 through the second side tube 4, the liquid can enter the second balloon 6 to make the second balloon 6 expand, and the second balloon 6 fits the shape of the intestinal cavity and generates pressure on the rectal wall, stimulating the nerve impulses generated by the receptors in the intestinal wall and the nearby receptors. The nerve impulses reach the defecation center of S2-4 along the pelvic nerve and the hypogastric nerve, and impulses are sent out from this center along the parasympathetic nerve of the pelvic nerve, causing the descending colon, sigmoid colon and rectum to contract, and the internal and external sphincters of the anus to relax, promoting the feces to be discharged out of the body. At the same time, there is a gap between the first balloon 5 and the second balloon 6, and the first balloon 5 and the second balloon 6 will not interfere with each other after expansion, improving the training effect.

[0026] In order to accurately locate and induce defecation, as Figure 2 shown, one end of the inner catheter 2 is inserted into the inside of the outer catheter 1, and an inlet 9 is provided at the other end of the inner catheter 2. A scale line 16 is provided on the tube wall of the inner catheter 2. Through the scale line 16, the extended length of the inner catheter 2 can be accurately controlled. A rotary extension mechanism connected to one end of the inner catheter 2 is provided inside the outer catheter 1. The rotary extension mechanism includes a lead screw 10 and a turning handle 11. A threaded component 12 is fixedly provided at the lower end of the inner catheter 2, and a support component 13 is fixedly provided at the lower end of the outer catheter 1. The lead screw 10 is vertically located inside the outer catheter 1. The upper end of the lead screw 10 extends into the inside of the inner catheter 2 and is threadedly connected to the threaded component 12, and the lower end of the lead screw 10 extends outside the outer catheter 1 and is rotatably connected to the support component 13. The turning handle 11 is fixedly provided at the lower end of the lead screw 10. The diameter of the lead screw 10 is smaller than the diameter of the inner catheter 2. A gap is left between the threaded component 12 and the inner catheter 2 and between the support component 13 and the outer catheter 1. The gap can ensure that the feces in the rectum are discharged through the outer catheter 1 and the inner catheter 2. When it is necessary to adjust the extended length of the inner catheter 2, the medical staff turns the turning handle 11 by hand. The turning handle 11 can drive the lead screw 10 to rotate, so that the lead screw 10 can helically drive the inner catheter 2 to move inside the outer catheter 1, thereby being able to adjust the length of the inner catheter 2 inside the outer catheter 1. The whole process of operation and adjustment is more convenient, time-saving and labor-saving. After the length is adjusted appropriately, the inner catheter 2 can be directly inserted into the rectum through the anus. Generally, the length of the inner catheter 2 is: 12 - 15 cm for the rectum, 20 - 60 cm for the sigmoid colon, and 20 cm for the descending colon. The feces enter the inner catheter 2 through the inlet 9 and are then discharged outward through the outer catheter 1.

[0027] Finally, in order to prevent the inner catheter 2 from rotating inside the outer catheter 1, as Figure 2-3 shown, a limiting block 14 is fixedly provided on the outer side wall of the inner catheter 2, and a limiting groove 15 matching the limiting block 14 is provided on the inner side wall of the outer catheter 1. The limiting block 14 can move up and down inside the limiting groove 15, thereby preventing the inner catheter 2 from rotating between the outer catheters 1 and ensuring that the inner catheter 2 can be helically extended or retracted.

[0028] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rectal balloon dilatation intestinal function training catheter, comprising an outer catheter (1) and an inner catheter (2), characterized in that: A first side tube (3) and a second side tube (4) are fixedly provided on both sides of the lower end of the outer catheter (1), a first balloon (5) and a second balloon (6) are fixedly provided on the tube wall of the outer catheter (1), a first flow guiding channel (7) is provided inside the tube wall of the outer catheter (1), and the two ends of the first flow guiding channel (7) are respectively connected to the first side tube (3) and the first balloon (5), a second flow guiding channel (8) is provided inside the tube wall of the outer catheter (1), and the two ends of the second flow guiding channel (8) are respectively connected to the second side tube (4) and the second balloon (6); One end of the inner catheter (2) is inserted into the interior of the outer catheter (1), and the other end of the inner catheter (2) is provided with an entry port (9). The interior of the outer catheter (1) is provided with a rotating extension mechanism connected to one end of the inner catheter (2).

2. The rectal balloon dilatation intestinal function training catheter according to claim 1, characterized in that: The rotating extension mechanism comprises a screw rod (10) and a rotating handle (11); a threaded component (12) is fixedly provided at the lower end of the inner guide tube (2); a supporting component (13) is fixedly provided at the lower end of the outer guide tube (1); the screw rod (10) is vertically located inside the outer guide tube (1); the upper end of the screw rod (10) extends to the inside of the inner guide tube (2) and is threadedly connected to the threaded component (12); and the lower end of the screw rod (10) extends to the outside of the outer guide tube (1) and is rotatably connected to the supporting component (13); and the rotating handle (11) is fixedly provided at the lower end of the screw rod (10).

3. The rectal balloon dilatation intestinal function training catheter according to claim 2, characterized in that: The diameter of the screw rod (10) is smaller than the diameter of the inner conduit (2), and a gap is left between the threaded component (12) and the inner conduit (2), and between the support component (13) and the outer conduit (1).

4. The rectal balloon dilatation intestinal function training catheter according to claim 1, characterized in that: A limiting block (14) is fixedly provided on the outer side wall of the inner conduit (2), and a limiting groove (15) matching with the limiting block (14) is provided on the inner side wall of the outer conduit (1).

5. The rectal balloon dilatation intestinal function training catheter according to claim 1, characterized in that: The first balloon (5) and the second balloon (6) are elliptical when inflated.

6. The rectal balloon dilatation intestinal function training catheter according to claim 1, characterized in that: The tube wall of the inner catheter (2) is provided with scale lines (16).

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