Anti-blocking enema drainage device

Abstract

The utility model relates to the technical field of medical instruments, in particular to an anti-blocking enema drainage device which comprises an anal tube, an enema bag and a drainage tube, the enema bag and the drainage tube are respectively communicated with the anal tube, the drainage tube is connected with a negative pressure assembly, and the negative pressure assembly comprises a shell and a needle cylinder piston matched with the shell. A pressure cavity is formed in the shell, the two ends of the pressure cavity are connected with the drainage tube and the liquid drainage tube respectively, two plugs slide in the pressure cavity, and the two plugs block two ports of the pressure cavity under the action of elastic pieces respectively; hole channels are formed in the two plug bodies, and when the pressure cavity is in a negative pressure state, the hole channel of the first plug body is communicated with the pressure cavity and the drainage tube; when the pressure cavity is in a positive pressure state, the hole channel of the second plug body communicates with the pressure cavity and the liquid discharging pipe. The liquid dung in the intestinal tract after enema can be rapidly removed by continuously pulling the needle cylinder piston, compared with a current drainage mode, the operation is smoother, blockage can be reduced, frequent replacement and replacement are not needed, and the leakproofness and the working efficiency of the drainage apparatus are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a kind of anti-clogging enema drainage device. BACKGROUND

[0002] Enema is a common nursing operation, mainly used for cleaning the intestinal tract to facilitate colonoscopy, abdominal surgery or X-ray plain film examination. In some cases, such as severe pancreatitis, abdominal distension and long-term enteral nutrition but no natural defecation patients, enema is also used as an adjuvant therapy. In ICU, enema operation of critical patients is frequent, especially those with fecal incontinence and using anal bag, the anal bag needs to be removed before enema operation, and after enema, the patient needs to discharge a large amount of excrement, usually the anal tube is pulled out and the excrement is collected in a basin. This process may contaminate the bed unit, and the nurse needs to spend a lot of time and effort to clean up.

[0003] Therefore, some researchers have designed enema equipment with drainage function. For example, Chinese utility model patents 202222733095.0 and 202121757618.4 add a drainage tube to the traditional enema drainage equipment. The drainage tube communicates with the anal tube inserted into the human body, and the fecal water after enema is discharged through the drainage tube to realize the discharge of excrement without pulling out the anal tube. Since the fecal water is thick or contains a lot of undigested residues, the natural discharge of fecal water through the drainage tube is not efficient, and the residues in the fecal water may block the liquid outlet of the anal tube during discharge. Patent 202222733095.0 provides a solution by providing multiple side holes at the end of the anal tube and cooperating with a negative pressure device. Negative pressure suction can more effectively remove solid waste in fecal water and reduce the occurrence of blockage.

[0004] In patent 202222733095.0, a negative pressure bottle is used as a negative pressure device and also as a container for fecal water. However, the capacity of a commonly used negative pressure bottle is limited and cannot accommodate a large amount of excrement. After the negative pressure bottle is full, it needs to be replaced or a new negative pressure source needs to be introduced after the waste liquid is discharged. In addition to the negative pressure bottle, a disposable negative pressure device commonly used in the department also includes a syringe. The syringe is easy to carry and can be discarded after use, which has unique advantages. However, when using the syringe to extract fecal water, the syringe needs to be removed after one extraction, and a tube clamp is used to temporarily close the drainage tube. After the fecal water is discharged, the drainage tube is connected again for extraction. The frequent disassembly and replacement affect the discharge efficiency and also affect the airtightness of the enema drainage device during the disassembly and replacement process. Therefore, the applicant believes that there is still room for improvement in the current enema drainage equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an anti-clogging enema drainage device to solve the problems in the prior art.

[0006] To achieve these objects, the present application provides the following technical solutions: An anti-blocking enema drainage device comprises an anal tube, an enema bag and a drainage tube which are in communication with the anal tube, and a negative pressure assembly connected to the drainage tube, wherein the negative pressure assembly comprises a shell and a needle cylinder piston matched with the shell; a pressure cavity is arranged in the shell, and the pressure cavity is connected with the drainage tube and a liquid discharge pipe at two ends respectively; two plug bodies are slidably arranged in the pressure cavity, and the two plug bodies block two ports of the pressure cavity under the action of elastic members respectively; a hole is arranged on each of the two plug bodies, wherein when the pressure cavity is in a negative pressure state, the first plug body slides towards the pressure cavity, and the hole of the first plug body is in communication with the pressure cavity and the drainage tube; when the pressure cavity is in a positive pressure state, the second plug body slides away from the pressure cavity, and the hole of the second plug body is in communication with the pressure cavity and the liquid discharge pipe.

[0007] As a preferred embodiment, the plug body comprises a sliding block and a sealing cone head, and the sealing cone head is used to block the connection between the adjacent cavity of the pressure cavity and the pressure cavity.

[0008] As a preferred embodiment, a cone head cavity in communication with the hole is formed between the sealing cone head and the shell, the cone head cavity at one end of the liquid inlet cavity is in communication with the pressure cavity, and the cone head cavity at one end of the liquid discharge port is in communication with the liquid discharge port.

[0009] As a preferred embodiment, the negative pressure assembly further comprises a connecting pipe fixedly connected with the shell, and a corresponding independent cavity for mounting the elastic member is formed between the connecting pipe and the shell.

[0010] As a preferred embodiment, the hole comprises a side hole and a central vertical hole in communication with the cone head cavity, the sliding block is arranged on the connecting pipe through the central vertical hole, and the inner side and the outer side of the sliding block are slidably and sealingly arranged with the connecting pipe and the shell respectively.

[0011] As a preferred embodiment, an air vent is further arranged on the shell, one end of the air vent is in communication with the atmosphere, and the other end is in communication with the corresponding independent cavity for mounting the elastic member.

[0012] As a preferred embodiment, the elastic member is a spring or an elastic rubber member.

[0013] As a preferred embodiment, the two ends of the elastic member are respectively in abutment with the connecting pipe and the corresponding plug body.

[0014] As a preferred embodiment, a plurality of liquid outlet holes are arranged on the anal tube.

[0015] As a preferred embodiment, an air bag and an inflation pipe are further arranged on the anal tube, one end of the inflation pipe is in communication with the air bag, and the other end is in communication with an inflation head.

[0016] Compared with the prior art, the application has the beneficial effects of:

[0017] The application improves the structure of the negative pressure assembly, and the fecal water in the intestinal tract after enema can be quickly removed by continuously pulling the needle cylinder piston, which is more smooth than the current negative pressure bottle and the drainage mode of the ordinary needle cylinder, and helps to reduce the occurrence of blockage; in addition, this design does not need to be frequently disassembled and replaced, simplifies the operation steps, and improves the sealing performance and working efficiency of the drainage device. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is an embodiment structure diagram of the anti-blocking enema drainage device of the present application;

[0020] Figure 2 It is an embodiment structure diagram of the negative pressure assembly provided by the anti-blocking enema drainage device of the present application;

[0021] Figure 3 It is an embodiment structure diagram of the plug provided by the anti-blocking enema drainage device of the present application;

[0022] Figure 4 It is a state diagram of the negative pressure assembly piston pulling away from the pressure cavity provided by the anti-blocking enema drainage device of the present application;

[0023] Figure 5 It is a state diagram of the negative pressure assembly piston pushing towards the pressure cavity provided by the anti-blocking enema drainage device of the present application;

[0024] Figure 6 It is a local structure diagram of the anal tube provided by the anti-blocking enema drainage device of the present application;

[0025] Figure 7 It is an embodiment structure diagram of the negative pressure assembly provided by the anti-blocking enema drainage device of the present application;

[0026] Anus tube; 2- irrigation bag; 3- drainage tube; 4- negative pressure assembly; 5- liquid discharge pipe; 6- air bag; 7- inflation pipe; 8- inflation head; 101- liquid outlet hole; 401- shell; 402- piston; 403- pressure cavity; 404- first plug; 405- second plug; 406- first return spring; 407- second return spring; 408- hole; 409- sealing cone; 410- slider; 411- liquid inlet cavity; 412- liquid discharge cavity; 413- cone chamber A; 414- cone chamber B; 415- connecting pipe A; 416- connecting pipe B; 417- side hole; 418- central vertical hole; 419- first sealing ring; 420- second sealing ring; 421- third sealing ring; 422- fourth sealing ring; 423- vent hole. DETAILED DESCRIPTION

[0027] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 , the present embodiment provides a kind of anti-clogging enema drainage device, including anus tube 1, and irrigation bag 2 and drainage tube 3 are communicated with anus tube 1 respectively, the drainage tube 3 is connected with negative pressure assembly 4, the negative pressure assembly 4 includes shell 401, and piston 402 of needle barrel sliding seal cooperation with shell 401;The shell 401 is provided with pressure cavity 403, the pressure cavity 403 two ends are connected with drainage tube 3 and liquid discharge pipe 5 respectively, two plugs (404,405) are slidably and sealingly arranged in the pressure cavity 403, two plugs (404,405) are respectively blocked at the two ends of pressure cavity 403 under the action of corresponding elastic member (406,407);Two plugs (404,405) are all equipped with hole 408, please refer to Figure 4 , as an example, when piston 402 is pulled to the position shown in the figure, pressure cavity 403 is in negative pressure state, first plug 404 slides towards the direction close to pressure cavity 403, the hole 408 of first plug 404 is communicated with pressure cavity 403 and drainage tube 3, and fecal water enters pressure cavity 403 from drainage tube 3;Please refer to Figure 5As an example, when the piston 402 is pushed into the pressure cavity 403 to the position shown in the figure, the pressure cavity 403 is in a positive pressure state, the second plug body 405 slides away from the pressure cavity 403, the hole of the second plug body 405 communicates the pressure cavity and the drain pipe, and the fecal water enters the drain pipe from the pressure cavity. By continuously pulling the syringe piston 402, the fecal water in the intestine after the enema can be quickly removed. Compared with the current negative pressure bottle and the drainage mode of the ordinary syringe, this design does not need to be frequently disassembled and replaced, simplifies the operation steps, and makes the drainage smoother, which helps to reduce the occurrence of blockage and improve the sealing performance and working efficiency of the drainage device.

[0029] Please refer to Figure 1 and Figure 6 In some embodiments of the present application, a plurality of liquid outlet holes 101 are further provided on the anal canal 1, which cooperate with the negative pressure assembly 4 to further prevent the anal canal 1 from being blocked when the fecal water is discharged. The anal canal further comprises an air bag 6 and an inflation pipe 7, one end of the inflation pipe 7 communicates with the air bag 6, and the other end communicates with an inflation head 8. The air bag 6 can be inflated through the inflation head 8 to block the anus of the patient, prevent the enema liquid and fecal water from overflowing from the anus of the patient, and avoid contaminating the bed unit.

[0030] Please refer to Figure 3 and Figure 2 The plug body (the first plug body 404 and the second plug body 405) comprises a sliding block 401 and a sealing cone head 409, and the sealing cone head 409 is used to block the connection between the pressure cavity 403 and the adjacent cavity. Specifically, please refer to Figure 7 The cavity adjacent to the pressure cavity 403 comprises a liquid inlet cavity 411 communicating with the drainage pipe 3 and a liquid outlet cavity 412 communicating with the drain pipe 5, the sealing cone head of the first plug body 404 can be in sealing connection with the port of the liquid inlet cavity 411, and the sealing cone head of the second plug body 405 can be in sealing connection with the port of the pressure cavity 403. The conical design can effectively contact the ports of the cavities in the housing 401, form a good sealing effect, and on the other hand, the self-cleaning ability of the conical structure is strong, which can reduce the risk of solid pollutants in the fecal water remaining in the port of the liquid inlet cavity 4011. In some embodiments of the present application, the sealing cone head 409 can also be provided in a circular arc shape or a trapezoidal shape.

[0031] Please refer to Figure 3 and Figure 7The sealing cone head 409 and the shell 1 form a cone head chamber in communication with the hole 408, including a cone head chamber A 413 at one end of the liquid inlet chamber 411 in communication with the pressure chamber 403; a cone head chamber B 414 at one end of the liquid outlet 412 in communication with the liquid outlet 412; optionally, the maximum flow diameter of the cone head chamber A 413 is smaller than the maximum flow diameter of the drainage pipe 3, so as to ensure that the fecal water can be effectively accelerated and concentrated when entering the cone head chamber A 413, reduce the backflow phenomenon of the fecal water in the cone head chamber A 413, and reduce the retention of solid pollutants.

[0032] Please refer to Figure 7 The negative pressure assembly 4 further includes a connecting pipe, including a connecting pipe A 415 and a connecting pipe B 416, the connecting pipe is fixedly connected with the shell 401, and the connecting pipe A 415 and the connecting pipe B 416 each form an independent chamber for installing the elastic member (406, 407) with the shell 401, so as to avoid direct contact of the fecal water with the elastic member (406, 407), thereby preventing the elastic member (406, 407) from being stuck by the solid pollutants in the fecal water, and ensuring smooth drainage of the device.

[0033] Please refer to Figure 3 and Figure 7 The hole 408 includes a side hole 417 and a central vertical hole 418, the central vertical hole 418 is in communication with the side hole 417, the side hole 417 is in communication with the corresponding cone head chamber, the side hole 417 can be provided in multiple groups, the first plug body 404 is slidably arranged on the connecting pipe A 415 through the central vertical hole, a first sealing ring 419 is arranged between the upper sliding block of the first plug body 404 and the connecting pipe A 415, and the first sealing ring 419 is used to ensure the sealed connection between the upper sliding block of the first plug body 404 and the connecting pipe A 415; the second plug body 405 is slidably arranged on the connecting pipe B 416 through the central vertical hole, a second sealing ring 420 is arranged between the upper sliding block of the second plug body 405 and the connecting pipe B 416, and the second sealing ring 420 is used to ensure the sealed connection between the upper sliding block of the second plug body 405 and the connecting pipe B 416; in addition, a third sealing ring 421 is arranged between the upper sliding block of the first plug body 401 and the shell 401, and the third sealing ring 421 is used to ensure the sealed connection between the upper sliding block of the first plug body 401 and the shell 401; a fourth sealing ring 422 is arranged between the upper sliding block of the second plug body 405 and the shell 401, and the fourth sealing ring 422 is used to ensure the sealed connection between the upper sliding block of the second plug body 405 and the shell 401, so as to avoid the fecal water entering the independent chamber for installing the elastic member.

[0034] Please refer to Figure 7The shell 401 is further provided with a vent hole 423, one end of which is communicated with the outside atmosphere and the other end is communicated with a corresponding independent chamber for mounting the elastic member. The vent hole 423 is used to balance the pressure inside and outside the independent chamber for mounting the elastic member, so as to avoid hindering the movement of the plug body. Optionally, the elastic member is a spring, including a first return spring 406 and a second return spring 407. The two ends of the first return spring 406 are respectively abutted with the connecting pipe A 415 and the first plug body 404. The conical plug head of the first return spring 406 is abutted against the port of the liquid inlet chamber 4011 under the elastic force of the first return spring 406, so as to form a seal. When the piston 402 is separated from the pressure chamber, the first return spring 406 is compressed, the conical plug head of the first plug body 404 slides downward, and the fecal water can enter the pressure chamber through the conical head chamber A 413 and the connecting pipe A 415 from the liquid inlet chamber 4011. The two ends of the second return spring 407 are respectively abutted with the connecting pipe B 416 and the second plug body 405. The conical plug head of the second return spring 407 is abutted against the port of the pressure chamber 403 under the elastic force of the second return spring 407, so as to form a seal. When the piston 402 pushes the pressure chamber, the conical plug head of the first plug body 404 is reset under the action of the first return spring 406, so as to block the liquid inlet chamber 4011. The second return spring 407 is compressed, the conical plug head of the second plug body 405 slides downward, the fecal water can enter the liquid outlet chamber 412 from the pressure chamber 403 through the conical head chamber B 414 and the connecting pipe B 416, and then is discharged through the liquid outlet pipe 5. In some embodiments of the present application, the elastic member can also be an elastic rubber member.

[0035] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clogging-preventing enema drainage device, comprising an anal tube, an enema bag and a drainage tube in communication with the anal tube respectively, characterized in that the drainage tube is connected with a negative pressure assembly, the negative pressure assembly comprises a shell and a syringe piston matched with the shell, a pressure cavity is arranged in the shell, and the pressure cavity is connected with the drainage tube and a liquid discharge tube respectively at two ends, two plug bodies are slidably arranged in the pressure cavity, the two plug bodies block two ports of the pressure cavity under the action of elastic members respectively, and holes are arranged on the two plug bodies.

2. The enema drainage device according to claim 1, wherein the plug bodies comprise sliding blocks and sealing cone heads, the sealing cone heads are used to block the connection between adjacent cavities of the pressure cavity and the pressure cavity, the sealing cone heads and the shell form cone cavity chambers in communication with the holes, the cone cavity chamber located at one end of the liquid inlet cavity is in communication with the pressure cavity, and the cone cavity chamber located at one end of the liquid discharge port is in communication with the liquid discharge port.

3. The enema drainage device according to claim 1, wherein the negative pressure assembly further comprises a connecting tube fixedly connected with the shell, and the connecting tube and the shell form corresponding independent cavities for mounting the elastic members.

4. The enema drainage device according to claim 1, wherein the holes comprise side holes and central vertical holes in communication with the cone cavity chambers, the sliding blocks are arranged on the connecting tube through the central vertical holes, and the inner side and the outer side of the sliding blocks are slidably and sealingly arranged with the connecting tube and the shell respectively.

5. The enema drainage device according to claim 1, wherein the shell is further provided with a vent hole, one end of the vent hole is in communication with the atmosphere, and the other end of the vent hole is in communication with the corresponding independent cavity for mounting the elastic members.

6. The enema drainage device according to claim 1, wherein the elastic members are springs or elastic rubber members.

7. The enema drainage device according to claim 1, wherein the two ends of the elastic members are in abutment with the connecting tube and the corresponding plug bodies respectively.

8. The enema drainage device according to claim 1, wherein the anal tube is provided with a plurality of liquid outlet holes.

9. The enema drainage device according to claim 1, wherein the anal tube is further provided with an air bag and an inflation tube, one end of the inflation tube is in communication with the air bag, and the other end of the inflation tube is in communication with an inflation head. ​ ​ 2. The anti-clog enteral feeding tube of claim 1, wherein, ​ 3. The anti-clog enteral feeding tube of claim 2, wherein, ​ 4. The anti-clog enteral feeding tube of claim 3, wherein, ​ 5. The anti-clog enteral feeding tube of claim 4, wherein, ​ 6. The anti-clog enteral feeding tube of claim 5, wherein, ​ 7. The anti-clog enteral feeding tube of claim 4, wherein, ​ 8. The anti-clog enteral feeding tube of claim 4, wherein, ​ 9. The anti-clog enteral feeding set of any one of claims 1 to 8, wherein, ​ 10. The anti-clog enteral feeding tube of claim 9, wherein, ​

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