CN214859358U

CN214859358U - Direction-adjustable blind-insertion gastrointestinal nutrient canal

Info

Publication number: CN214859358U
Application number: CN202120820745.8U
Authority: CN
Inventors: 李颖川; 李备成
Original assignee: Guangzhou Laifu Medical Equipment Co ltd
Current assignee: Guangzhou Laifu Medical Equipment Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-26
Anticipated expiration: 2031-04-21

Abstract

The direction-adjustable blind-insertion gastrointestinal nutrition tube is provided with a tube body, a guide mechanism and a support assembled at the rear end of the tube body, wherein the guide mechanism is provided with a guide wire and at least one core wire, the guide wire and the core wire are sleeved inside the tube body, the front end of the guide wire is fixedly connected with the front end of the core wire, and the tail end of the guide wire and the tail end of the core wire are respectively assembled on the support. The guide wire is welded and fixed with the front end of the core wire. The front end of at least one of the guide wire and the core wire is connected with a soft head. The number of the core wires is one, two or three. The front end of the tube body is provided with an opening for the guide wire and the core wire to partially leak out of the tube body. The outer surface of the guide wire or the core wire is covered with a soft protective layer, and the diameter of the core wire is smaller than that of the guide wire. This blind-insertion gastrointestinal nutrition tube with adjustable direction can adjust the direction in a flexible way in the intubation process, shortens the time that the intubation tube passes through the pylorus, improves the success rate that the intubation tube passes through the pylorus, and the injury that the intubation tube in-process caused the human alimentary canal is little.

Description

Direction-adjustable blind-insertion gastrointestinal nutrient canal

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an adjustable type blind-insertion gastrointestinal nutrition tube of direction.

Background

Serious diseases and serious wounds can cause the change of the metabolism of the organism, so that the catabolism of the organism is greater than anabolism, if the organism is in the process of being greater than anabolism for a long time, serious malnutrition and low immunity of the organism can be caused, and further the problems of poor gastric emptying, multiple organ dysfunction or failure and the like can be caused. The nutrition supply is implemented after the operation of the seriously ill or the seriously injured patient, so that the nutrition condition of the patient can be improved, the disease condition is relieved, the disease course is shortened, and the fatality rate is reduced. Nutrition supply 12-24 hours after operation is generally considered to be safe, and the problems of incision infection, lung infection and the like are reduced.

At present, the nutrition supply mode after the operation of the seriously ill or the seriously invasive patient mainly comprises two modes of enteral nutrition and parenteral nutrition. Parenteral nutrition is a means of supplying nutrition intravenously before and after surgery and for patients with severe or severe illness or trauma, and enteral nutrition is a means of supplying nutrients needed for metabolism via the gastrointestinal tract. Current medical studies indicate that patients receiving enteral nutrition have a significantly lower risk of infection and mortality than patients receiving parenteral nutrition. Therefore, as long as the patient has gastrointestinal function, enteral nutrition is the first choice for nutrition supply. Is especially suitable for the postpyloric nutrition supply for patients with severe pancreatitis, intolerance of transgastric feeding and high risk of regurgitation and aspiration.

The enteral nutrition can be taken orally or fed via catheter, and can be directly supplied to patients without eating disorder by oral administration of nutrient substances. For patients with eating disorders, the nutrition needs to be infused by using catheters, which currently include common gastric and naso-intestinal tubes. Compared with the method of intermittently supplying nutrition by using a common stomach tube, the method of continuously dripping the naso-intestinal tube to supply nutrition to the critically ill patient can not only protect the normal functions of the gastrointestinal tract of the patient, especially the patient with the impaired stomach function, but also reduce the occurrence of a plurality of complications. Therefore, continuous nasal-intestinal instillation has become the mainstream enteral nutrition supply.

In the case of nutrition supply after pylorus, the methods of tube placement usually adopted clinically include guidance and blind insertion. The guiding method is to place the tube with the help of gastroscope, X-ray or endoscope, the guiding method has definite diameter of the placing tube and high accuracy, but the guiding method needs to transport the patient in the hospital and has the risk of cross infection and the like. In order to avoid risks such as cross infection caused by transportation, medical staff usually adopt a blind insertion method to carry out a post-pylorus nutrition supply tube. The blind insertion method is a method for medical care personnel to manually place a nose intestine into the back of the pylorus without any auxiliary equipment. The blind insertion method comprises a passive waiting mode and an active blind insertion mode, the passive waiting blind insertion method is based on the premise that the stomach power of a patient is normal, the nasointestinal tube is placed into the stomach of the patient when the blind insertion method is used, and the nasointestinal tube automatically passes through the pylorus after 8-12 hours under the action of the stomach power. The active blind insertion method is a method in which medical staff adjusts the direction by sensing resistance and moving the nasointestinal tube up and down to find pylorus and finally place the nasointestinal tube into the pylorus. The blind insertion method has the advantages of convenient operation and small wound, can improve the tolerance of enteral nutrition, has low risk of aspiration, and reduces the occurrence of complications such as VAP. However, passive waiting for blind insertion tube placement takes a long time and easily misses the time for enteral nutrition supply of patients; the success rate of pylorus is low through the present initiative blind insertion method, and is difficult to operate, and the nose intestines pipe is easily convoluteed in the stomach, and when constantly reciprocating of nose intestines pipe and looking for the pylorus, causes the damage to the alimentary canal easily.

Therefore, it is necessary to provide a direction-adjustable blind-insertion gastrointestinal nutrient canal to overcome the deficiencies in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point and provide an adjustable type blind insertion stomach intestines nutrition tube of direction, can adjust the front end direction in a flexible way inserting the in-process, can shorten the time of looking for the pylorus, it is easy and simple to handle, put into the pylorus success rate height and need not adopt the method that constantly reciprocates the nutrition tube when adjusting the front end direction, it is little to the damage that the human alimentary canal caused.

The purpose of the utility model is realized through the following technical measures.

The direction-adjustable blind-insertion gastrointestinal nutrient canal is provided with a canal body, a guide mechanism and a bracket assembled at the rear end of the canal body;

the guide mechanism is provided with a guide wire and at least one core wire, the guide wire and the core wire are sleeved inside the tube body, the front end of the guide wire is fixedly connected with the front end of the core wire, and the tail end of the guide wire and the tail end of the core wire are respectively assembled on the support.

Preferably, the guide wire is welded and fixed with the front end of the core wire.

Preferably, a soft tip is connected to a tip of at least one of the guide wire and the core wire.

Preferably, the core wire is provided with one core wire; or

The number of the core wires is two, the two core wires are distributed on two sides of the guide wire, and the two core wires and the guide wire in the middle are arranged in a straight line shape; or

The number of the core wires is three, and the three core wires are arranged around the guide wire in the middle in an equilateral triangle shape.

Preferably, the front end of the tube body is provided with an opening for the guide wire and the core wire to partially leak out of the tube body; or

The front end of the tube body is closed, the guide wire and the core wire are abutted against the front end of the tube body, and at least one side opening is formed in the side face of the tube body.

Preferably, the outer surface of the guide wire or the core wire is covered with a soft protective layer, and the diameter of the core wire is smaller than that of the guide wire.

Preferably, the bracket is provided with a mounting channel and at least one supply channel, the supply channel is communicated with the mounting channel, and the mounting channel is fixedly assembled with the input end of the pipe body.

Preferably, the end of the guide wire is connected with a first end, the end of the core wire is connected with a second end, and the first end and the second end are respectively assembled on the supply channel.

Preferably, the first end head is assembled to the supply passage, the first end head is provided with a through hole for the core wire to pass through, the core wire passes through the through hole provided in the first end head, and the second end head at the tail end of the core wire is assembled to the first end head; or

The supply channel is provided with a joint, the guide wire passes through a through hole arranged on the joint and used for the guide wire to pass through, the first end of the tail end of the guide wire is assembled on the joint, the core wires respectively pass through the through holes arranged on the joint and used for the core wires to pass through, and the second end of the tail end of the core wire is assembled on the joint.

Preferably, the outer surfaces of the core wire and the guide wire are provided with scale marks, and the outer tube wall of the tube body is provided with cardia scale marks, pylorus scale marks and jejunum scale marks.

The utility model discloses a type blind insertion stomach intestines nutrition tube that direction is adjustable is provided with body, guiding mechanism and assembles in the support of body rear end, and guiding mechanism is provided with seal wire and an at least core silk, and the seal wire is adorned inside the body with the core silk suit, and the front end of seal wire and the front end fixed connection of core silk, and the end of seal wire, the end of core silk assemble respectively in the support. When the blind intubation is carried out, the front end of the gastrointestinal nutrition tube is inserted from the nasal cavity or the oral cavity of a human body, the front end of the gastrointestinal nutrition tube drives the whole gastrointestinal nutrition tube to sequentially pass through the esophagus, the stomach and the pylorus and then enter the duodenum of the human body, and after the front end of the gastrointestinal nutrition tube passes through the pylorus and enters the duodenum, the intubation is successful. After successful intubation, the guide wire and the core wire are withdrawn. At this time, only the tube body is left in the human body, and the nutrient substances can be conveyed into the human body through the tube body.

Due to the particularity of the esophagus, the stomach and the pylorus, the gastrointestinal nutrition tube is inserted into the stomach from the esophagus in a substantially straight line, so that the front direction of the gastrointestinal nutrition tube needs to be adjusted to be aligned with the pylorus when the pylorus is inserted.

The utility model discloses a blind-insertion gastrointestinal nutrition tube with adjustable direction is through guiding mechanism adjustment gastrointestinal nutrition tube front end direction, during the regulation direction, makes the core silk be close to pylorus place direction, and fixed seal wire is motionless, stimulates the core silk, and gastrointestinal nutrition tube's front end direction will be adjusted for the direction of seal wire place one side to the core silk, to pylorus place direction adjustment promptly, finally aims at pylorus place direction.

The utility model discloses a blind-insertion gastrointestinal nutrition tube with adjustable direction can adjust the front end direction of gastrointestinal nutrition tube in a flexible way, when the intubate passes through the pylorus, can find pylorus place direction fast, has shortened the blind time of inserting the pipe through the pylorus and has improved the blind success rate of inserting the pipe through the pylorus, has further shortened the nutrition infusion time of critical disease, is favorable to the patient to be recovered, shortens the time of being in hospital. Additionally, the utility model discloses a type blind insertion stomach intestines nutrient canal that direction is adjustable need not reciprocate the stomach intestines nutrient canal when carrying out the adjustment of front end direction, constantly reciprocates the damage that the stomach intestines nutrient canal caused to the alimentary canal when can avoiding adjusting the direction among the prior art.

Drawings

The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.

Fig. 1 is a schematic view of the internal structure of the blind-insertion gastrointestinal nutrition tube with adjustable direction in embodiment 1 of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic view of the position relation structure between the direction-adjustable blind-insertion gastrointestinal nutrition tube and the stomach when inserted into the stomach.

Fig. 4 is a schematic structural diagram of a guiding mechanism of the direction-adjustable blind-insertion gastrointestinal nutrition tube of the embodiment 3 of the present invention.

Fig. 5 is a schematic structural diagram of a guiding mechanism of the direction-adjustable blind-insertion gastrointestinal nutrition tube of embodiment 4 of the present invention.

Fig. 6 is a schematic view of the sectional structure "B-B" of fig. 5.

Fig. 7 is a schematic view of the connection relationship between the first end and the second end of the direction-adjustable blind-insertion gastrointestinal nutrition tube of embodiment 6 of the present invention and the supply channel.

Fig. 8 is a schematic structural view of the front end of the tube body of the direction-adjustable blind-insertion gastrointestinal nutrition tube of embodiment 7 of the present invention.

In fig. 1 to 8, there are included:

tube 100, opening 110, side port 120, guide mechanism 200, guide wire 210, core wire 220, installation channel 310, supply channel 320, nutrient channel 321, drug channel 322, cap 330, connecting portion 331, main body 332, connector 400, first tip 410, second tip 420.

Detailed Description

The present invention will be further illustrated with reference to the following examples.

Example 1.

A direction-adjustable blind-insertion gastrointestinal nutrition tube is provided with a tube body 100, a guide mechanism 200 and a bracket assembled at the rear end of the tube body 100, wherein the guide mechanism 200 is provided with a guide wire 210 and at least one core wire 220, the guide wire 210 and the core wire 220 are sleeved inside the tube body 100, the front end of the guide wire 210 is fixedly connected with the front end of the core wire 220, and the tail end of the guide wire 210 and the tail end of the core wire 220 are respectively assembled on the bracket, as shown in fig. 1 and 2.

When the blind intubation is carried out, the front end of the gastrointestinal nutrition tube is inserted from the nasal cavity or the oral cavity of a human body, the front end of the gastrointestinal nutrition tube drives the whole gastrointestinal nutrition tube to sequentially pass through the esophagus, the stomach and the pylorus and then enter the duodenum of the human body, and after the front end of the gastrointestinal nutrition tube passes through the pylorus and enters the duodenum, the intubation is successful. After successful intubation, the guide wire and the core wire are withdrawn. At this time, only the tube 100 is left in the human body, and nutrients can be delivered into the human body through the tube 100.

Due to the particularity of the esophagus, the stomach and the pylorus, the gastrointestinal nutrition tube is inserted into the stomach from the esophagus in a substantially straight line, so that the front direction of the gastrointestinal nutrition tube needs to be adjusted to be aligned with the pylorus when the pylorus is inserted. After the direction-adjustable blind-insertion gastrointestinal nutrition tube is inserted into the stomach, the position relationship between the nutrition tube and the stomach is shown in fig. 3.

The direction-adjustable blind-insertion gastrointestinal nutrition tube of the embodiment adjusts the direction of the front end of the gastrointestinal nutrition tube through the guide mechanism, when the direction is adjusted, the core wire 220 is close to the direction of a pylorus, the guide wire 210 is fixed and is not moved, the core wire 220 is pulled, the direction of the front end of the gastrointestinal nutrition tube is adjusted towards the direction of the core wire 220 relative to the direction of one side of the guide wire 210, and finally the direction of the pylorus is aligned.

When the catheter is inserted into the pylorus, the core wire 220 is oriented to the front end of the catheter body 100 in a definite direction toward the position of the core wire 220 in the present embodiment. Medical personnel can be according to the human body structure, adjust the front end direction of body 100 to the pylorus direction fast, then put into the pylorus with body 100 after, can shorten the time that the pylorus was crossed to the intubate, improve the success rate that the pylorus was crossed to the intubate. Further shortening the nutrition supply time after pylorus of the patient, being beneficial to the rehabilitation of the patient and shortening the hospitalization time.

For convenience of description, nutrients are introduced from one end of the tube and from the other end of the tube into the intestine. The end of the tube 100 where the nutrients are introduced is defined as the rear end of the tube, and the end of the tube 100 where the nutrients are discharged is defined as the front end of the tube. In the same positioning manner, the end of the guide wire 210 at the output end of the tube body 100 is the front end of the guide wire 210, and the end at the input end of the tube body 100 is the tail end of the guide wire 210; the end of the core wire 220 at the output end of the tube 100 is the front end of the core wire 220, and the end at the input end of the tube 100 is the tail end of the core wire 220.

When the traditional gastrointestinal nutrition tube is adjusted in the tube inserting direction, the gastrointestinal nutrition tube needs to be moved up and down to adjust the direction of the front end of the gastrointestinal nutrition tube, the direction adjusting mode easily causes the damage of the digestive tract of a human body, and the tube body is soft and is easy to spiral in the stomach. The traditional gastrointestinal nutrient canal can stimulate the digestive tract of a human body in the process of moving up and down and adjusting the direction, so that the human body generates abnormal discharge and vomit symptoms, and the insertion of the gastrointestinal nutrient canal is not facilitated. And the utility model discloses a blind insertion gastrointestinal nutrition tube with adjustable direction need not reciprocate body 100 in the process of core silk 220 adjustment body 100 front end direction, can avoid reciprocating and cause the damage to the human alimentary canal, and the stimulation that produces the human body is little, and human comfortable degree is high. In addition, the core wire also increases the toughness of the guide wire, so that the medical care personnel can conveniently sense the resistance of the nutrient canal, the nutrient canal is not easy to spiral in the stomach, and the success rate of placing the canal and passing the pylorus is improved.

In this embodiment, the core wire 220 is provided as one piece. The front end of the hose is provided with an opening 110 for the guide wire 210 and the core wire 220 to partially leak out of the hose. The outer surface of the guide wire 210 or the core wire 220 is covered with a soft protective layer. The guide wire 210 and the core wire 220 are both led out of the opening 110 of the feeding tube, and the trouble of tube placement caused by bending the front end of the tube body 100 can be prevented. The protective layer can be made of various materials meeting medical conditions and capable of enhancing the toughness of the guide wire 210 or the core wire 220, and has the functions of enhancing the toughness of the core wire 220 and the guide wire 210 and reducing abrasion to the inner wall of the tube body 100 when the core wire 220 and the guide wire 210 are drawn out of the tube body 100.

In this embodiment, the tube body 100 may be made of any polymer material such as polyurethane, PVC, or silica gel, and the guide wire 210 and the core wire 220 may be made of any material that satisfies the strength and toughness of the blind-mate feeding tube guiding mechanism 200. The guide mechanism 200 consists of the guide wire 210 and the core wire 220, so that the toughness of the guide mechanism 200 is increased, the guide effect of the guide mechanism 200 is enhanced, the sensing capability of medical staff to resistance in the blind plugging process can be improved, and the medical staff is not easy to fold in the stomach. In order to save cost, the guide mechanism 200 in this embodiment is preferably made of metal material and plastic material. In addition, the length and diameter of the tube 100 and the length of the guide mechanism 200 are designed according to the human body structure, which is well known in the art and will not be described herein.

In this embodiment, the bracket is provided with a mounting channel 310 and at least one supply channel 320, the supply channel 320 is communicated with the mounting channel 310, and the mounting channel 310 is fixedly assembled with the input end of the pipe body 100. It should be noted that, in the present embodiment, the number of the supply channels 320 is specifically two, and the supply channels 321 and the medicine channels 322 are respectively, but in practical use, the number of the supply channels 320 is not limited to two, and is not limited to only the supply channels 321 and the medicine channels 322. In this embodiment, the channel radius of the drug channel 322 is smaller than the channel radius of the nutrient channel 321. It should be noted that the mounting channel 310 may be integrally connected with the input end of the tube 100, or may be sleeved with the input end of the tube. The integral connection can prevent liquid from overflowing from the joint of the installation channel 310 and the pipe body 100, the support can be conveniently replaced by sleeving, and the pipe placing process does not need to be carried out again when the support is replaced. In this embodiment, the mounting channel 310 is integrally connected to the input end of the tube 100.

In order to facilitate control of the guide wire 210 and the core wire 220, a first end 410 is connected to the end of the guide wire 210, a second end 420 is connected to the end of the core wire 220, and the first end 410 and the second end 420 are respectively assembled to the supply passage 320. Wherein the first stub 410 is fitted to the supply passage 320, the first stub 410 is provided with a through hole for the core wire 220 to pass through, the core wire 220 passes through the through hole provided in the first stub 410, and the second stub 420 at the end of the core wire 220 is fitted to the first stub 410. The first and

second headers

410 and 420 in this embodiment are specifically assembled to the feeding channel 321, but are not limited to the feeding channel 321. It should be noted that, in this embodiment, specifically, the first end 410 is sleeved on the feeding channel 320, and the second end 420 is sleeved on the first end 410, but in practice, the assembly method is not limited to this, and two fixing clips may be provided on the feeding channel 320, and may be used for respectively clamping the guide wire 210 and the core wire 220.

The application method of the direction-adjustable blind-insertion gastrointestinal nutrition tube in the embodiment specifically comprises the following steps:

step 1: placing the tube into the stomach;

specifically, before the tube is placed, an operator washes hands, prepares objects, assists a patient to take a half-sitting position, makes an angle of 30-45 degrees between the body and the horizontal plane of the bed, lays a treatment towel, places a bent disc at the corner of the mouth, cleans the patient and selects one nostril with smooth ventilation. Preferably, the right side position is selected, and 2ml lidocaine gel is optionally injected into the nasal cavity for lubrication and topical anesthesia. Wetting the nutrient canal with 0.9% physiological saline, activating the hydrophilic coating, inserting the direction-adjustable blindly-inserted gastrointestinal nutrient canal into the selected nostril, slightly upwards, then parallelly, slowly and slightly backwards inserting, so that the patient can drink water and insert while slowly inserting into the throat part (14-16 cm), order the patient to swallow after drinking water, and insert the lubricated gastric nutrient canal. When the tube is inserted, the head of the patient can be supported by hands, so that the lower jaw of the patient is close to the sternum peduncle, and the tube can pass through the pharynx conveniently. If the tube is placed through a gastric minimally invasive, the tube is placed to the corresponding size.

Step 2: placing the tube through the pylorus;

specifically, when the pipe is continuously fed to a position of about 65cm, the pipe is stopped when resistance is met. At this time, the first end 410 of the nutrition tube input end 120 connected with the guide wire 210 is fixed, the second end 420 connected with the core wire 220 is pulled forcefully, so that the second end 420 is far away from the nutrition channel 321, after the front end direction of the gastrointestinal nutrition tube is changed, the tube is continuously fed in a proper way, when a slight breakthrough feeling is met, the output end 110 of the nutrition tube passes through the pylorus, and the tube is slowly fed to about 105cm, namely, the jejunum is reached.

And step 3: judging the position of the catheter by a preliminary method;

specifically, when the front end of the feeding tube reaches the front of the pylorus of the stomach, air can be injected into the feeding tube, the abdomen auscultation air makes a water sound, the placing tube reaches the stomach cavity, liquid is extracted to monitor the pH value, the pH value is confirmed to be less than 5, the tube is continuously and slowly placed, a slight breakthrough feeling is caused when the tube passes through the pylorus, the tube is continuously pushed to about 95-105 cm, the tube is pumped back, if light yellow secretion which is not more than 5-10mL exists, the feeding tube is likely to enter the small intestine, the pH value is detected to be 6-7, if the liquid cannot be pumped out, about 10mL of air is injected into the tube, the back pumping meets an obstacle, the feeding tube is determined to have entered the small intestine, 10 mL0.9% physiological saline is injected into the tube body 100, and the liquid is pumped back to be less than 5mL, so that the feeding tube is determined to have entered the small intestine.

The application method of the direction-adjustable blind-insertion gastrointestinal nutrition tube in the embodiment is that medical staff judges the position of the output end 110 of the nutrition tube by using the sensing resistance of the guide mechanism 200, and when the resistance is met, the direction of the front end of the nutrition tube is adjusted by stretching the core wire 220, so that the front end of the nutrition tube faces towards the pylorus. The in-process of nutrition pipe at adjustment front end direction need not reciprocate the nutrition pipe on the alimentary canal, can avoid moving up and down the nutrition pipe when adjusting the direction among the prior art and cause the damage to the alimentary canal. It should be noted that, in the blind-insertion tube placement process, if the resistance completely disappears, the direction-adjustable blind-insertion gastrointestinal nutrition tube in the embodiment may be coiled in the stomach, and at this time, the tube should be withdrawn properly, and the tube placement is performed again according to the above steps; if a breakthrough is sensed with momentarily less resistance and the push continues, the resistance remains, indicating that the placement has been successful through the pylorus to the duodenum.

The direction-adjustable blind-insertion gastrointestinal nutrition tube can flexibly adjust the direction of the front end of the nutrition tube in the intubation process; the front end direction of the nutrient canal can be quickly aligned to the pylorus by adjusting the front end direction of the nutrient canal, so that the intubation time is shortened, and the success rate of intubation through the pylorus is improved; when the direction of the front end of the nutrition tube is adjusted, the whole nutrition tube does not need to move up and down along the alimentary canal, so that the damage to the alimentary canal caused by the continuous up and down movement of the nutrition tube when the direction of the front end of the nutrition tube is adjusted in the prior art can be avoided; the time that the intubation tube passes through the pylorus is short, so that the nutrition infusion time of critical patients is further shortened, the rehabilitation of the patients is facilitated, and the hospitalization time is shortened.

Example 2.

A direction-adjustable blind-insertion gastrointestinal nutrition tube, which has the same other characteristics as the embodiment 1, except that: the guide wire 210 is welded and fixed to the front end of the core wire 220. The tip of at least one of the guide wire 210 and the core wire 220 is connected to a soft tip. After the guide wire 210 and the core wire 220 are fixed, the connection point between the core wire 220 and the guide wire 210, that is, the front end of the entire guide mechanism 200 is a soft head, and when the guide mechanism 200 is inserted into the tube 100 or pulled out from the tube 100, the soft head can prevent the leading end from scratching the inner wall of the tube 100. And can also avoid the damage of the guiding mechanism 200 to the human body in the process of blind insertion of the tube.

The direction-adjustable blind-insertion gastrointestinal nutrition tube can flexibly adjust the direction of the front end of the nutrition tube in the intubation process; the front end direction of the nutrient canal can be quickly aligned to the pylorus by adjusting the front end direction of the nutrient canal, so that the intubation time is shortened, and the success rate of intubation through the pylorus is improved; when the direction of the front end of the nutrition tube is adjusted, the whole nutrition tube does not need to move up and down along the alimentary canal, so that the damage to the alimentary canal caused by the continuous up and down movement of the nutrition tube when the direction of the front end of the nutrition tube is adjusted in the prior art can be avoided; the time that the intubation tube passes through the pylorus is short, so that the nutrition infusion time of critically ill patients is further shortened, the rehabilitation of patients is facilitated, and the hospitalization time is shortened; the soft head can avoid the damage of the guide mechanism to the pipe body and the human body.

Example 3.

A direction-adjustable blind-insertion gastrointestinal nutrition tube, which has the same other characteristics as the embodiment 1, except that: as shown in fig. 4, two core wires 220 are provided, and the two core wires 220 are distributed on both sides of the guide wire 210, and the two core wires 220 and the guide wire 210 in the middle are arranged in a straight line. The diameter of the core wire 220 is smaller than the diameter of the guide wire 210. The leading end of the guide wire 210 can be adjusted to the orientation of the two core wires 220. The diameter of the core wire 220 is smaller than the diameter of the guide wire 210, which reduces resistance to insertion of the guide mechanism 200 into the tubular body 100 and withdrawal of the guide mechanism 200 from the tubular body 100 after successful cannulation.

The direction-adjustable blind-insertion gastrointestinal nutrition tube can flexibly adjust the direction of the front end of the nutrition tube in the intubation process; the front end direction of the nutrient canal can be quickly aligned to the pylorus by adjusting the front end direction of the nutrient canal, so that the intubation time is shortened, and the success rate of intubation through the pylorus is improved; when the direction of the front end of the nutrition tube is adjusted, the whole nutrition tube does not need to move up and down along the alimentary canal, so that the damage to the alimentary canal caused by the continuous up and down movement of the nutrition tube when the direction of the front end of the nutrition tube is adjusted in the prior art can be avoided; the time that the intubation tube passes through the pylorus is short, so that the nutrition infusion time of critically ill patients is further shortened, the rehabilitation of patients is facilitated, and the hospitalization time is shortened; the number of the core wires is large, and the direction selectivity of the front end direction adjustment of the nutrition tube is large.

Example 4.

A direction-adjustable blind-insertion gastrointestinal nutrition tube, which has the same other characteristics as the embodiment 1, except that: as shown in fig. 5 and 6, the core wires 220 are arranged in three, and three core wires 220 are arranged in an equilateral triangle around the central guide wire 210. The front end of the guide wire 210 can be adjusted to the direction of the three core wires 220.

Example 5.

A direction-adjustable blind-insertion gastrointestinal nutrition tube, which has the same other characteristics as the embodiment 1, except that: as shown in fig. 7, the supply channel 320 is fitted with a joint 400, the guide wires 210 are passed through holes provided in the joint 400 for the guide wires 210 to pass through, first ends 410 of the distal ends of the guide wires 210 are fitted to the joint 400, the core wires 220 are respectively passed through the through holes provided in the joint 400 for the core wires 220 to pass through, and second ends 420 of the distal ends of the core wires 220 are fitted to the joint 400. The mounting channel 310 and the supply channel 320 are provided with caps 330, each cap 330 is provided with a connecting portion 331 and a main body 332, the connecting portion 331 is fixedly connected with the outer wall of the mounting channel 310 or the supply channel 320, and the main body 332 is inserted into the mounting channel 310 or the supply channel 320. After the tube is successfully inserted out of the guiding mechanism 200, the cap 330 may be inserted into the feeding channel 320 when the feeding tube is not carrying out material transportation, so as to prevent other materials from entering the tube body 100 of the feeding tube.

The direction-adjustable blind-insertion gastrointestinal nutrition tube can flexibly adjust the direction of the front end of the nutrition tube in the intubation process; the front end direction of the nutrient canal can be quickly aligned to the pylorus by adjusting the front end direction of the nutrient canal, so that the intubation time is shortened, and the success rate of intubation through the pylorus is improved; when the direction of the front end of the nutrition tube is adjusted, the whole nutrition tube does not need to move up and down along the alimentary canal, so that the damage to the alimentary canal caused by the continuous up and down movement of the nutrition tube when the direction of the front end of the nutrition tube is adjusted in the prior art can be avoided; the time that the intubation tube passes through the pylorus is short, so that the nutrition infusion time of critically ill patients is further shortened, the rehabilitation of patients is facilitated, and the hospitalization time is shortened; the use of cap can prevent that the nutrition tube from not carrying out the material and transmitting other material and get into the nutrition tube, has improved the security of nutrition tube.

Example 6.

A direction-adjustable blind-insertion gastrointestinal nutrition tube, which has the same other characteristics as the embodiment 1, except that: the outer surfaces of the core wire 220 and the guide wire 210 are provided with scale marks, and the outer wall of the tube body 100 is provided with cardia scale marks, pylorus scale marks and jejunum scale marks. When the tube placing direction is adjusted, the scale marks are arranged on the outer surfaces of the core wire 220 and the guide wire 210 to reflect the adjustment degree of the direction, and when the front end of the feeding tube passes through the pylorus, the guide wire 210 and the core wire 220 are drawn out of the tube body 100 according to the scales on the guide wire 210 and the core wire 220, the distance equal to the part of the opening 110 of the tube body 100, where the guide wire 210 and the core wire 220 are exposed out, is equal to the distance, so that the guide wire 210 and the core wire 220 are retracted into the tube body, and the part, where the guide wire 210 and the core wire 220 are exposed out of the tube body 100, is prevented from scratching the digestive tract of a human body. In this embodiment, the positions of the scale marks are specifically described by taking the adult feeding tube as an example. According to the human body structure of an adult, the distance from the cardia to the nasal orifice of the human body is generally 45cm, the distance from the pylorus to the nasal orifice of the human body is generally 65cm, and the distance from the jejunum to the nasal orifice of the human body is generally 105 cm. Therefore, the cardia scale mark is located at a position 45cm away from the front end of the tube 100 on the can body, the pylorus scale mark is located at a position 65cm away from the front end of the tube 100 on the tube 100, and the jejunum scale mark is located at a position 105cm away from the front end of the tube 100 on the tube 100. Cardia scale mark, pylorus scale mark and jejunum scale mark's setting can provide a reference standard for the blind pipe of inserting, improves medical personnel and inserts the control of putting the pipe in-process to the blind, and medical personnel need not remember the distance of human nose mouth to cardia, pylorus and jejunum wantonly to need refer to three kinds of scale marks and put the pipe can. For example, when the nasal opening of the human body coincides with the pylorus scale mark when the medical staff performs blind insertion of the tube, the subsequent operation of the blind insertion tube can be performed according to step 2 of the method for using the direction-adjustable blind insertion gastrointestinal nutrition tube in the embodiment 1.

The direction-adjustable blind-insertion gastrointestinal nutrition tube can flexibly adjust the direction of the front end of the nutrition tube in the intubation process; the front end direction of the nutrient canal can be quickly aligned to the pylorus by adjusting the front end direction of the nutrient canal, so that the intubation time is shortened, and the success rate of intubation through the pylorus is improved; when the direction of the front end of the nutrition tube is adjusted, the whole nutrition tube does not need to move up and down along the alimentary canal, so that the damage to the alimentary canal caused by the continuous up and down movement of the nutrition tube when the direction of the front end of the nutrition tube is adjusted in the prior art can be avoided; the time that the intubation tube passes through the pylorus is short, so that the nutrition infusion time of critically ill patients is further shortened, the rehabilitation of patients is facilitated, and the hospitalization time is shortened; the number of the core wires is large, and the direction selectivity of the front end direction adjustment of the nutrition tube is more; the scale marks arranged on the outer surfaces of the core wire and the guide wire can facilitate the medical staff to control the direction adjustment range, and the length of the guide wire and the core wire drawn out of the tube body can be conveniently controlled; the cardia scale mark, the pylorus scale mark and the jejunum scale mark arranged on the outer tube wall of the tube body can improve the control of the medical personnel on the blind insertion tube placement depth.

Example 7.

A direction-adjustable blind-insertion gastrointestinal nutrition tube, which has the same other characteristics as the embodiment 1, except that: as shown in fig. 8, the distal end of the tube 100 is closed, the guide wire 210 and the core wire 220 are in contact with the distal end of the tube 210, and at least one side port 120 is provided on the side surface of the tube. The side port 120 must be located near the front end of the tube 100. It should be noted that, in the embodiment, the distance from the side port 120 to the front end of the tube 100 is less than 1cm, but is not limited to less than 1 cm. The front end of the tube body 100 is closed, so that the guide wire 210 and the core wire 220 can be prevented from being directly contacted with the digestive tract of the human body to damage the digestive tract of the human body, and the side port 120 is used for conveying nutrient substances and medicines or draining. In the present embodiment, the number of the side ports 120 is two, but the number is not limited to two in actual use, and may be specifically set according to the amount and speed of the substance to be transported by the tube 100, or may be three, four, or the like.

The direction-adjustable blind-insertion gastrointestinal nutrition tube can flexibly adjust the direction of the front end of the nutrition tube in the intubation process; the front end direction of the nutrient canal can be quickly aligned to the pylorus by adjusting the front end direction of the nutrient canal, so that the intubation time is shortened, and the success rate of intubation through the pylorus is improved; when the direction of the front end of the nutrition tube is adjusted, the whole nutrition tube does not need to move up and down along the alimentary canal, so that the damage to the alimentary canal caused by the continuous up and down movement of the nutrition tube when the direction of the front end of the nutrition tube is adjusted in the prior art can be avoided; the time that the intubation tube passes through the pylorus is short, so that the nutrition infusion time of critically ill patients is further shortened, the rehabilitation of patients is facilitated, and the hospitalization time is shortened; the front end of the tube body is closed, so that the guide wire and the core wire can be prevented from exposing out of the tube body to damage the digestive tract of a human body.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a direction adjustable type blind-insertion gastrointestinal nutrition tube which characterized in that: the device is provided with a pipe body, a guide mechanism and a bracket assembled at the rear end of the pipe body;

2. The directionally adjustable blind-insertion gastrointestinal nutrition tube of claim 1, wherein: the guide wire is welded and fixed with the front end of the core wire.

3. The directionally adjustable blind-insertion gastrointestinal nutrition tube of claim 1, wherein: the front end of at least one of the guide wire and the core wire is connected with a soft head.

4. The directionally adjustable blind-insertion gastrointestinal nutrition tube of claim 2, wherein: the number of the core wires is one; or

5. The directionally adjustable blind-insertion gastrointestinal nutrition tube of claim 4, wherein: the front end of the tube body is provided with an opening for the guide wire and the core wire to partially leak out of the tube body; or

6. The directionally adjustable blind mount gastrointestinal nutrition tube of any one of claims 1 to 5, wherein: the outer surface of the guide wire or the core wire is covered with a soft protective layer, and the diameter of the core wire is smaller than that of the guide wire.

7. The directionally adjustable blind mount gastrointestinal nutrition tube of any one of claims 1 to 5, wherein: the support is provided with an installation channel and at least one supply channel, the supply channel is communicated with the installation channel, and the installation channel is fixedly assembled with the input end of the pipe body.

8. The directionally adjustable blind-insertion gastrointestinal nutrition tube of claim 7, wherein: the tail end of the guide wire is connected with a first end head, the tail end of the core wire is connected with a second end head, and the first end head and the second end head are respectively assembled on the supply channel.

9. The directionally adjustable blind-insertion gastrointestinal nutrition tube of claim 8, wherein: the first end head is assembled on the supply channel, the first end head is provided with a through hole for the core wire to pass through, the core wire passes through the through hole arranged on the first end head, and the second end head at the tail end of the core wire is assembled on the first end head; or

10. The directionally adjustable blind-insertion gastrointestinal nutrition tube of claim 9, wherein: the outer surfaces of the core wire and the guide wire are provided with scale marks, and the outer pipe wall of the pipe body is provided with cardia scale marks, pylorus scale marks and jejunum scale marks.