Duckbill valve for fixing transnasointestinal obstruction catheter

Abstract

The utility model discloses a duckbill valve for fixing a nasointestinal obstruction catheter. Comprising a first pipeline and a second pipeline; a duckbill valve mechanism is mounted in the first pipeline; the duckbill valve mechanism comprises a threaded connecting ring, a supporting part is fixedly arranged at one end of the threaded connecting ring, and a valve port part is fixedly arranged on one side of the supporting part. The first pipeline or the second pipeline is installed through an adjustable fixing mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a duckbill valve used for fixing a nasointestinal obstruction catheter. Background Art

[0002] Intestinal obstruction is a common clinical condition that hinders the passage of intestinal contents due to various causes, such as inflammation, tumors, abdominal surgery, or trauma. Its prevention and treatment remain challenging. While surgery can resolve the symptoms of obstruction, postoperative adhesions can form in the patient's abdominal cavity, leading to angulation of the intestine or compression of the intestine by adhesion bands, potentially causing re-obstruction.

[0003] The treatment principle of obstruction is to relieve the obstruction, relieve intestinal flatulence, and maintain water, electrolyte, and acid-base balance. Intestinal obstruction is treated conservatively or surgically depending on the situation, and gastrointestinal decompression is the primary measure. Compared with traditional gastrointestinal decompression, nasogastric intestinal obstruction catheterization has more advantages. It can reach the distal part of the ascending duodenum through the pylorus to decompress and drain the small intestine, quickly reduce intestinal pressure, and thus quickly and effectively relieve various symptoms such as abdominal distension caused by obstruction, promote blood circulation to the intestinal wall, and relieve symptoms such as intestinal mucosal edema, congestion, and adhesions. Therefore, nasogastric intestinal obstruction catheterization is of great significance for the treatment of intestinal obstruction. However, there are still various problems with the placement and structure of various nasogastric intestinal obstruction catheters on the market.

[0004] For example, a nasal intestinal obstruction catheter anti-blocking device disclosed in the authorization announcement number CN215194817U realizes the movement of the designed squeezing mechanism to replace the squeezing of the catheter by the fingers of the person, thereby making the squeezing of the catheter easier and avoiding repeated long-term pressing of the fingers, which causes hand soreness. At the same time, compared with the method of exhausting the air with the fingers to generate negative pressure, the exhaust component can adjust the squeezing effect and maintain long-term exhaust without loosening, thereby making the exhaust generate negative pressure effect better. However, it does not solve the problems of the existing nasal intestinal obstruction catheter being prone to blockage during use and being inconvenient to fix and install the nasal intestinal obstruction catheter. For this reason, we propose a duckbill valve for fixing the nasal intestinal obstruction catheter. Utility Model Content

[0005] The purpose of the present utility model is to provide a duckbill valve for fixing a nasointestinal obstruction catheter, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a duckbill valve for fixing a nasointestinal obstruction catheter, comprising a first pipe and a second pipe, wherein the first pipe and the second pipe are connected to each other;

[0007] The connecting ends of the first pipe and the second pipe are respectively provided with a first internal thread ring and a second internal thread ring, and a duckbill valve mechanism is installed inside the first pipe;

[0008] The duckbill valve mechanism includes a threaded connecting ring, which is threadedly connected to the inner sides of the first internal threaded ring and the second internal threaded ring, one end of the threaded connecting ring is fixedly provided with a support part, and one side of the support part is fixedly provided with a valve mouth part, and a plurality of steel wire boosting rings are embedded in the support part and the valve mouth part, and a plurality of the steel wire boosting rings are arranged in a circular ring shape inside the support part, and a plurality of the steel wire boosting rings are arranged in a flat shape inside the valve mouth part. The preparation material of the duckbill valve mechanism is flexible rubber, and the duckbill valve mechanism is prepared by integrally molding the flexible rubber into the support part and the valve mouth part, the threaded connecting ring is supported by PVC material, and the threaded connecting ring and the support part are fixedly connected by hot melt technology, and the duckbill valve mechanism uses internal pressure difference to open and external pressure difference to close;

[0009] The first pipe or the second pipe is fixedly installed by an adjustable fixing mechanism, which includes a fixing seat, and a binding belt is fixedly provided on one side of the fixing seat. The adjustable fixing mechanism fixes the first pipe or the second pipe on the fixing seat through the binding belt.

[0010] Preferably, the adjustable fixing mechanism is fixedly adhered to the upper part of the hydrocolloid dressing, the adhesive surface of the hydrocolloid dressing is adhered with release paper, and the hydrocolloid dressing is used to adhere to one side of the patient's face to fix the nasointestinal obstruction catheter.

[0011] Preferably, a snap-fitting groove is provided on the upper portion of the fixing seat, the snap-fitting groove is used to place the first pipe or the second pipe, and the binding belt is used to bind and fix the first pipe or the second pipe.

[0012] Preferably, a through hole is provided inside the fixing seat, a fixed tooth is fixedly provided on the middle upper end surface of the through hole, and a plurality of movable teeth are fixedly provided on one side surface of the end of the binding belt.

[0013] Preferably, one end of the binding belt is movably passed through the inside of the passing hole, and the movable teeth and the fixed teeth are engaged with each other, that is, the binding belt is fixed by the engagement between the movable teeth and the fixed teeth, thereby fixing the first pipe or the second pipe.

[0014] Preferably, the duckbill valve mechanism is threadedly connected to the interior of the first pipe through the threaded connection ring, the support portion and the valve mouth portion are located inside the first pipe, and the discharge flow direction of the support portion and the valve mouth portion is that the discharge flows from the threaded connection ring to the support portion and the valve mouth portion.

[0015] Preferably, one end of the second pipe is threadedly connected to the threaded connecting ring through the second internal threaded ring, so that the ends of the first pipe and the second pipe are correspondingly connected to maintain sealing. The setting of the threaded connecting ring forms a whole between the first pipe and the second pipe, and the first pipe is inserted into the patient's nasal and intestinal structure.

[0016] Preferably, the size of the hydrocolloid dressing is 2.5 cm × 7 cm, the adjustable fixing mechanism is adhered to the center of the front of the hydrocolloid dressing, and the nasal intestinal obstruction catheter is fixed and installed at a position 20 cm away from the nose by the adjustable fixing mechanism;

[0017] A hydrophilic guide wire is provided inside the transnasal intestinal obstruction catheter. The guide wire inside the transnasal intestinal obstruction catheter can play a supporting role when placing the catheter and increase the toughness of the catheter. Its surface is treated with a hydrophilic coating, which can reduce friction resistance after being wetted by water. Therefore, injecting water into the transnasal intestinal obstruction catheter is more conducive to increasing the success rate of catheter placement.

[0018] Preferably, before the nasal intestinal obstruction catheter is inserted, the nasal intestinal obstruction catheter and its structural equipment are disinfected. First, they are rinsed with running water for one minute, then sterilized using pressure steam sterilization or low-temperature sterilization, then rinsed with 75% ethanol, and finally soaked in saline for two minutes to clean off the ethanol residue on the nasal intestinal obstruction catheter and its structural equipment.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model controls on and off through a flexible rubber check valve. The new fully flexible check valve made of rubber material uses internal pressure difference to open and external pressure difference to close, thereby relieving obstruction, alleviating intestinal flatulence, and maintaining water-electrolyte acid-base balance. The duckbill valve mechanism is mostly an integrated structure 100% made of high-quality elastic rubber material with internal fiber reinforcement. Except for the sleeve type, which uses a stainless steel sleeve, the interior does not contain any metal accessories and will not corrode or rust, and is highly wear-resistant. There is no worry about mechanical failure and no maintenance is required. Due to its unique material and structure, it can still be tightly closed even if it is blocked by solid objects. Since it is made of rubber material, the pure flexible check valve is very quiet when working, reducing noise pollution to the environment. It is realized by the internal and external pressure difference without any electricity or manpower, so it is the best choice for preventing backflow. Since the valve body is particularly flexible, it ensures maximum back pressure resistance while minimizing the water head. Some can be opened with only 1 cm water head, so that the valve's discharge and back pressure resistance are perfectly unified. The sealing performance is good, and the leakage is zero when the valve is closed.

[0021] The adjustable fixing mechanism is used for fixed installation, which makes it easy to fix the nasal intestinal obstruction catheter to the fixing seat through the binding belt, maintains the stability of the installation, prevents the nasal intestinal obstruction catheter from shifting during use, and facilitates disassembly and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the adjustable fixing mechanism of the present utility model;

[0024] Figure 3 This is a cross-sectional view of the adjustable fixing mechanism of the present utility model;

[0025] Figure 4 For the utility model Figure 3 A is an enlarged schematic diagram;

[0026] Figure 5 This is a cross-sectional view of the nasal intestinal obstruction catheter of the present invention;

[0027] Figure 6 For the utility model Figure 5 A magnified schematic diagram of point B in FIG.

[0028] Figure 7 This is a schematic diagram of the duckbill valve mechanism of the present utility model;

[0029] Figure 8 Schematic diagram of the steps of the present invention.

[0030] In the figure: 1. hydrocolloid dressing; 2. release paper; 3. adjustable fixing mechanism; 301. fixing seat; 302. engaging groove; 303. binding belt; 304. insertion hole; 305. fixed teeth; 306. movable teeth; 4. first pipe; 5. second pipe; 6. duckbill valve mechanism; 601. threaded connecting ring; 602. support portion; 603. valve mouth portion; 7. first internal thread ring; 8. second internal thread ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 7, the utility model provides a technical solution: a duckbill valve for fixing a nasointestinal obstruction catheter, comprising a first pipe 4 and a second pipe 5, wherein the first pipe 4 and the second pipe 5 are connected to each other;

[0033] The connecting ends of the first pipe 4 and the second pipe 5 are respectively provided with a first internal thread ring 7 and a second internal thread ring 8, and a duckbill valve mechanism 6 is installed inside the first pipe 4;

[0034] The duckbill valve mechanism 6 includes a threaded connection ring 601, which is threadedly connected to the inner sides of the first internal threaded ring 7 and the second internal threaded ring 8. A support portion 602 is fixedly arranged at one end of the threaded connection ring 601, and a valve mouth portion 603 is fixedly arranged at one side of the support portion 602. Several steel wire boosting rings are embedded in the support portion 602 and the valve mouth portion 603. Several of the steel wire boosting rings are arranged in a circular ring shape inside the support portion 602, and several of the steel wire boosting rings are arranged in a flat shape inside the valve mouth portion 603. The duckbill valve mechanism 6 is made of flexible rubber, and the support portion 602 and the valve mouth portion 603 are prepared by integrally molding the flexible rubber. The threaded connection ring 601 is supported by PVC material, and the threaded connection ring 601 and the support portion 602 are fixedly connected by hot melt technology. The duckbill valve mechanism 6 uses internal pressure difference to open and external pressure difference to close.

[0035] The first pipe 4 or the second pipe 5 is fixedly installed by an adjustable fixing mechanism 3, and the adjustable fixing mechanism 3 includes a fixing seat 301. A binding belt 303 is fixedly provided on one side of the fixing seat 301. The adjustable fixing mechanism 3 fixes the first pipe 4 or the second pipe 5 on the fixing seat 301 through the binding belt 303.

[0036] In order to achieve fixed installation of the nasointestinal obstruction catheter, in this embodiment, preferably, the adjustable fixing mechanism 3 is fixedly adhered to the upper part of the hydrocolloid dressing 1, and the adhesive surface of the hydrocolloid dressing 1 is adhered with a release paper 2. The hydrocolloid dressing 1 is used to adhere to one side of the patient's face to fix the nasointestinal obstruction catheter.

[0037] In order to achieve fixed clamping of the nasointestinal obstruction catheter and maintain stability, in this embodiment, preferably, a snap-fit ​​groove 302 is provided on the upper portion of the fixing seat 301, and the snap-fit ​​groove 302 is used to place the first pipe 4 or the second pipe 5, and the binding belt 303 is used to bind and fix the first pipe 4 or the second pipe 5.

[0038] In order to lock the binding belt 303 and maintain the stability of the fixed clamping, in this embodiment, preferably, a through hole 304 is opened inside the fixing seat 301, and a fixed tooth 305 is fixed on the upper end face of the middle of the through hole 304, and a plurality of movable teeth 306 are fixed on one side of the end of the binding belt 303.

[0039] In order to enable the binding belt 303 to stably clamp and fix the nasointestinal obstruction catheter on the fixing seat 301, in this embodiment, preferably, one end of the binding belt 303 is movably passed through the inside of the passing hole 304, and the movable teeth 306 and the fixed teeth 305 are engaged with each other, that is, the binding belt 303 is fixed by the engagement between the movable teeth 306 and the fixed teeth 305, and the first pipe 4 or the second pipe 5 is fixed.

[0040] In order to achieve fixed installation of the duckbill valve mechanism 6 and maintain on-off control, in this embodiment, preferably, the duckbill valve mechanism 6 is threadedly connected to the inside of the first pipe 4 through the threaded connection ring 601, the support part 602 and the valve mouth part 603 are inside the first pipe 4, and the discharge flow direction of the support part 602 and the valve mouth part 603 is that the discharge flows from the threaded connection ring 601 to the support part 602 and the valve mouth part 603.

[0041] In order to facilitate the installation and disassembly of the duckbill valve mechanism 6, the first pipe 4 and the second pipe 5 are combined for installation and connection. In this embodiment, preferably, one end of the second pipe 5 is threadedly connected to the threaded connection ring 601 through the second internal threaded ring 8, so that the ends of the first pipe 4 and the second pipe 5 are correspondingly connected to maintain sealing. The setting of the threaded connection ring 601 forms a whole between the first pipe 4 and the second pipe 5, and the first pipe 4 is a structure inserted into the patient's nose and intestines.

[0042] refer to Figure 8 The method for using a duckbill valve for fixing a nasointestinal obstruction catheter includes the following steps:

[0043] S1. Assembly of the transnasal ileus catheter: Install the duckbill valve mechanism 6 inside the first pipe 4 and connect it to the threaded connecting ring 601 via the first internally threaded ring 7, so that the support portion 602 and the valve opening portion 603 are located inside the first pipe 4. The second pipe 5 is connected to the threaded connecting ring 601 via the second internally threaded ring 8, so that the first pipe 4 and the second pipe 5 form a whole. That is, the first pipe 4 and the second pipe 5 constitute the transnasal ileus catheter;

[0044] S2. Transnasal intestinal obstruction catheter placement: Under the guidance of gastroscopy or X-ray, the transnasal intestinal obstruction catheter is placed into the patient's body;

[0045] S3. Introduction method: A guidewire is used to insert the transnasal intestinal obstruction catheter into the deep small intestine proximal to or beyond the jejunum. The leading tip of the transnasal intestinal obstruction catheter is connected by five small metal balls. The gravity of the metal balls and intestinal peristalsis can be used to facilitate the catheter's passage through the pylorus. The catheter is then guided forward in the intestinal cavity until it reaches the proximal end of the obstruction to decompress the pressure.

[0046] S4. Detecting the position of the transnasal intestinal obstruction catheter: Detecting the position of the inserted transnasal intestinal obstruction catheter through gastroscopy or X-ray to determine whether the position of the transnasal intestinal obstruction catheter is correct. If the position of the transnasal intestinal obstruction catheter is correct, fix the transnasal intestinal obstruction catheter.

[0047] S5. Fixing the nasal intestinal obstruction catheter: Fix the nasal intestinal obstruction catheter through the adjustable fixing mechanism 3, remove the release paper 2 on the hydrocolloid dressing 1 at the lower part of the adjustable fixing mechanism 3, and stick the hydrocolloid dressing 1 on the facial skin.

[0048] In order to achieve fixed installation of the nasal intestinal obstruction catheter and adjust the comfortable position distance, in this embodiment, preferably, the size of the hydrocolloid dressing 1 is 2.5 cm × 7 cm, the adjustable fixing mechanism 3 is adhered to the front center of the hydrocolloid dressing 1, and the nasal intestinal obstruction catheter is fixed and installed at a position 20 cm away from the nose tip using the adjustable fixing mechanism 3;

[0049] A hydrophilic guide wire is provided inside the transnasal intestinal obstruction catheter. The guide wire inside the transnasal intestinal obstruction catheter can play a supporting role when placing the catheter and increase the toughness of the catheter. Its surface is treated with a hydrophilic coating, which can reduce friction resistance after being wetted by water. Therefore, injecting water into the transnasal intestinal obstruction catheter is more conducive to increasing the success rate of catheter placement.

[0050] In order to achieve sterilization and disinfection and facilitate use by patients, in this embodiment, preferably, before the nasal intestinal obstruction catheter is inserted, the nasal intestinal obstruction catheter and its structural equipment are disinfected. First, it is rinsed with running water for one minute, and then sterilized using pressure steam sterilization or low-temperature sterilization, and then rinsed with 75% ethanol, and finally soaked in saline for two minutes to clean off the ethanol residue on the nasal intestinal obstruction catheter and its structural equipment.

[0051] The working principle and use process of this utility model:

[0052] Step 1: Assembling the transnasal intestinal obstruction catheter: Install the duckbill valve mechanism 6 inside the first pipe 4 and connect it to the threaded connecting ring 601 through the first internal threaded ring 7, so that the support part 602 and the valve mouth part 603 can be inside the first pipe 4, and connect the second pipe 5 to the threaded connecting ring 601 through the second internal threaded ring 8, so that the first pipe 4 and the second pipe 5 form a whole, that is, the first pipe 4 and the second pipe 5 constitute the transnasal intestinal obstruction catheter;

[0053] Step 2: Insertion of the nasal intestinal obstruction catheter: Under the guidance of gastroscopy or X-ray, insert the nasal intestinal obstruction catheter into the patient's body;

[0054] Step 3: Introduction: Use a guidewire to insert the transnasal intestinal obstruction catheter into the deep small intestine proximal to the jejunum or beyond. The leading tip of the transnasal intestinal obstruction catheter is connected by five small metal balls. The gravity of the metal balls and intestinal peristalsis can be used to facilitate the catheter to pass through the pylorus. The catheter is then guided forward in the intestinal cavity so that it reaches the proximal end of the obstruction site to decompress the pressure.

[0055] Step 4: Detect the position of the transnasal intestinal obstruction catheter: Detect the position of the inserted transnasal intestinal obstruction catheter through gastroscopy or X-ray to determine whether the position of the transnasal intestinal obstruction catheter is correct. If the position of the transnasal intestinal obstruction catheter is correct, fix the transnasal intestinal obstruction catheter;

[0056] Step 5: Fixing the nasal intestinal obstruction catheter: Fix the nasal intestinal obstruction catheter through the adjustable fixing mechanism 3, remove the release paper 2 on the hydrocolloid dressing 1 at the lower part of the adjustable fixing mechanism 3, and stick the hydrocolloid dressing 1 on the facial skin.

[0057] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A duckbill valve for fixing a nasointestinal obstruction catheter, comprising a first conduit (4) and a second conduit (5), characterized in that: The first pipe (4) and the second pipe (5) are connected to each other; The connecting ends of the first pipe (4) and the second pipe (5) are respectively provided with a first internal thread ring (7) and a second internal thread ring (8), and a duckbill valve mechanism (6) is installed inside the first pipe (4); The duckbill valve mechanism (6) includes a threaded connection ring (601), which is threadedly connected to the inner sides of the first internal threaded ring (7) and the second internal threaded ring (8), and a support portion (602) is fixedly provided at one end of the threaded connection ring (601), and a valve mouth portion (603) is fixedly provided at one side of the support portion (602), and a plurality of steel wire boosting rings are embedded in the interior of the support portion (602) and the valve mouth portion (603), and the plurality of steel wire boosting rings are arranged in a circular ring inside the support portion (602). The plurality of steel wire boosting rings are arranged in a flat shape inside the valve mouth portion (603); the duckbill valve mechanism (6) is made of flexible rubber, and the duckbill valve mechanism (6) is formed into the support portion (602) and the valve mouth portion (603) by integrally molding the flexible rubber; the threaded connection ring (601) is supported by PVC material, and the threaded connection ring (601) and the support portion (602) are fixedly connected by hot-melt technology; the duckbill valve mechanism (6) is opened by internal pressure difference and closed by external pressure difference; The first pipe (4) or the second pipe (5) is fixedly installed via an adjustable fixing mechanism (3), wherein the adjustable fixing mechanism (3) comprises a fixing seat (301), a binding belt (303) is fixedly provided on one side of the fixing seat (301), and the adjustable fixing mechanism (3) fixes the first pipe (4) or the second pipe (5) on the fixing seat (301) via the binding belt (303).

2. The duckbill valve for fixing a nasointestinal obstruction catheter according to claim 1, characterized in that: The adjustable fixing mechanism (3) is fixedly adhered to the upper part of the hydrocolloid dressing (1), and the adhesive surface of the hydrocolloid dressing (1) is adhered with a release paper (2). The hydrocolloid dressing (1) is used to adhere to one side of the patient's face to fix the nasointestinal obstruction catheter.

3. The duckbill valve for fixing a nasointestinal obstruction catheter according to claim 1, characterized in that: The upper portion of the fixing seat (301) is provided with a snap-fitting groove (302), the snap-fitting groove (302) is used to place the first pipe (4) or the second pipe (5), and the binding belt (303) is used to bind and fix the first pipe (4) or the second pipe (5).

4. The duckbill valve for fixing a nasointestinal obstruction catheter according to claim 1, characterized in that: A through hole (304) is provided inside the fixing seat (301), and a fixed tooth (305) is fixedly provided on the middle upper end surface of the through hole (304). A plurality of movable teeth (306) are fixedly provided on one side surface of the end of the binding belt (303).

5. The duckbill valve for fixing a nasointestinal obstruction catheter according to claim 4, characterized in that: One end of the binding belt (303) is movably passed through the inside of the passing hole (304), and the movable teeth (306) and the fixed teeth (305) are engaged with each other, that is, the binding belt (303) is fixed by the engagement between the movable teeth (306) and the fixed teeth (305), thereby fixing the first pipe (4) or the second pipe (5).

6. The duckbill valve for fixing a nasointestinal obstruction catheter according to claim 1, characterized in that: The duckbill valve mechanism (6) is threadedly connected to the inside of the first pipe (4) through the threaded connection ring (601), the support portion (602) and the valve mouth portion (603) are located inside the first pipe (4), and the discharge flow direction of the support portion (602) and the valve mouth portion (603) is that the discharge flows from the threaded connection ring (601) to the support portion (602) and the valve mouth portion (603).

7. The duckbill valve for fixing a nasointestinal obstruction catheter according to claim 1, characterized in that: One end of the second pipe (5) is threadedly connected to the threaded connection ring (601) through the second internal threaded ring (8), so that the ends of the first pipe (4) and the second pipe (5) are connected correspondingly to maintain sealing. The setting of the threaded connection ring (601) allows the first pipe (4) and the second pipe (5) to form a whole, and the first pipe (4) is inserted into the patient's nasal and intestinal structure.

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