CN112915032A - Jejunum tube guided by external magnetic force and operation method thereof - Google Patents

Abstract

The invention provides a jejunum tube guided by external magnetic force and an operation method thereof, wherein the jejunum tube comprises a jejunum tube body, a guide wire and a magnetic force guider arranged outside the jejunum tube body; the jejunum tube body is of a hollow tubular structure, and a plurality of nutrient holes are formed in the side wall, close to the tail end, of the jejunum tube body; the guide wire is in a long strip shape and is arranged in the jejunum tube body, the length of the guide wire is matched with that of the jejunum tube body, the tail end of the guide wire is integrally connected with a guide part, and the guide part can move towards the magnetic guide under the magnetic adsorption action of the magnetic guide. The invention can not only improve the success rate and efficiency of the placement of the gastrointestinal tract, but also reduce the pain of the patient and improve the compliance of the patient.

Description

Jejunum tube guided by external magnetic force and operation method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to an in-vitro magnetic force guided jejunum tube and an operation method thereof.

Background

The upper digestive tract region such as esophagus and stomach is diseased, and requires surgery, which can result in failure to eat food. Referring to fig. 1, the clinical practice is to insert a jejunal tube from the mouth or nose, the end of which passes through the throat, esophagus 1, stomach 2, pylorus 3, and duodenum 4, in order, to the jejunum 5, with the open end of the jejunal tube being open to the outside of the body, and then to deliver liquid food or medicine to the jejunum 5 through the jejunal tube.

The current methods for arranging jejunal tubes mainly comprise the following methods, but all have more or less defects and shortcomings:

1. blind insertion method: namely, the jejunum tube is inserted into the jejunum 5 by bare hands, and in the operation process, the jejunum tube needs to pass through the throat, the esophagus 1, the stomach 2, the pylorus 3 and the duodenum 4 in sequence until reaching the jejunum 5. The defects are that the operation is generally required for a long time (1-5 hours), and the operation is blindly easy to cause complications such as respiratory tract and digestive tract injury, perforation and the like. The blind-insertion hollow intestinal canal is difficult to pass through the pylorus 3 and reach the target position (jejunum 5) because the stomach 2 is a large hollow organ, the pylorus 3 is very small, the stomach 2 is similar to a bag, and the pylorus 3 is similar to an opening which is tied by a rope and has a small gap; and the entrance and exit of the stomach are at an angle of almost ninety degrees, depending on the anatomy of the human body. The direction of the front end of the jejunum tube can not be controlled, an operator can only insert and test repeatedly by experience, and not only is the patient painful, but also the medical care workload is large, and the success rate is low.

2. Placing the jejunum tube under ultrasonic guidance: although ultrasound can roughly judge the position of the jejunum tube, the ultrasound cannot control the direction of the tail end of the jejunum tube like a blind insertion method, and cannot solve the fundamental problem.

3. Placing a jejunum tube under a gastroscope: the pain degree of the patient is high, the patient needs to go to a special gastroscope room and is operated by a special gastroscope doctor, the operation is inconvenient, the price is high, and the feasibility is low.

Disclosure of Invention

Aiming at the defects that the success rate and the efficiency of placement cannot be ensured by the hollow intestinal tube indwelling technology in the prior art, or the pain of a patient is too much during placement and the like, the invention provides the hollow intestinal tube guided by the external magnetic force and the operation method thereof, which not only can improve the success rate and the efficiency of placement of the hollow intestinal tube, but also can relieve the pain of the patient and improve the compliance of the patient.

In order to achieve the above object, a first aspect of the present invention provides an external magnetic force guided jejunum tube, comprising a jejunum tube body, a guide wire, and a magnetic force guider arranged outside the jejunum tube body;

the jejunum tube body is of a hollow tubular structure, and a plurality of nutrient holes are formed in the side wall, close to the tail end, of the jejunum tube body;

the guide wire is in a long strip shape and is arranged in the jejunum tube body, the length of the guide wire is matched with that of the jejunum tube body, the tail end of the guide wire is integrally connected with a guide part, and the guide part can move towards the magnetic guide under the magnetic adsorption action of the magnetic guide.

Preferably, the magnetic force director is a super magnet that can display magnetic force.

Preferably, the open end of the jejunum tube body is provided with a tube orifice for filling fluid, and the tube orifice is of a horn-shaped structure.

Preferably, the opening end of the guide wire is provided with a plugging body capable of plugging the orifice of the jejunal tube body, and the plugging body is matched with the orifice of the jejunal tube body in shape.

The second aspect of the present invention provides a method for operating the jejunum tube under the in vitro magnetic guidance, which comprises the following steps:

s1, carrying out body surface positioning on the pylorus and the duodenum under ultrasound, and marking the positions of the pylorus and the duodenum on the body surface;

s2, placing the jejunum tube to the stomach through mouth or nasal cavity by using a method of inserting a gastric tube blindly;

s3, according to the position marks of the pylorus and the duodenum in the step S1, the magnetic guider is placed outside the body of one end of the duodenum close to the pylorus, and the magnetic guider adsorbs the tail end of the traction guide wire, so that the tail end of the traction guide wire is pulled to enter the duodenum through the pylorus position;

s4, taking the magnetic guider out of the body, and continuing to convey the jejunum tube forwards to the jejunum position.

The invention has the following beneficial effects:

magnetic force guide places in the duodenum through the body surface mark and is close to the external of pylorus one end, and the in-process of carrying forward after the jejunum pipe gets into the stomach, the guide part at jejunum pipe end receives magnetic force guide's adsorption, makes the jejunum pipe can move towards magnetic force guide direction, thereby pull the jejunum pipe and pass through the pylorus comparatively accurately, solved the problem of internal jejunum pipe unable control direction in cavity internal organs (stomach), thereby improve success rate and the efficiency that the jejunum pipe was settled. Compared with various methods for indwelling jejunum tubes in the prior art, the method provided by the invention has the advantages that the success rate and efficiency of indwelling the jejunum tubes under the guidance of the external magnetic force are obviously improved, and the damage to human bodies is reduced. In addition, the jejunum tube guided by the in vitro magnetic force has the advantages of simple operation method, low technical difficulty, easy conversion and good practicability and popularization in medical clinic.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a background art jejunal tube placement;

FIG. 2 is a schematic structural diagram of an in vitro magnetic force guided jejunal tube according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a jejunal tube body according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a guidewire according to an embodiment of the present invention;

reference numerals

1-esophagus; 2-stomach; 3-pylorus; 4-duodenum; 5-jejunum;

100-jejunum tube body; 200-a guide wire; 300-a magnetic introducer;

101-nutrient pores; 102-a nozzle;

201-a guide; 202-closure body.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the following further detailed description of the embodiments of the present application with reference to the drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 2 and 3, an extracorporeal magnetic-guided jejunal tube includes a jejunal tube body 100, a guide wire 200, and a magnetic guide 300 disposed outside the jejunal tube body. The jejunum tube body 100 is a hollow tubular structure, and a plurality of nutrition holes 101 are arranged on the side wall close to the tail end. The guide wire 200 is in a long strip shape and is arranged in the jejunum tube body 100, the length of the guide wire 200 is matched with that of the jejunum tube body 100, the tail end of the guide wire 200 is integrally connected with a guide part 201, and the guide part 201 can move towards the magnetic guide 300 under the magnetic adsorption action of the magnetic guide 300.

Referring to fig. 1, the method for operating the jejunal tube under the external magnetic force guidance includes the following steps:

s1, carrying out body surface positioning on the pylorus 3 and the duodenum 4 under ultrasound, and marking the positions of the pylorus 3 and the duodenum 4 on the body surface;

s2, placing the jejunum tube to the stomach 2 through mouth or nasal cavity by using a method of inserting a gastric tube blindly;

s3, according to the position marks of the pylorus and the duodenum in the step S1, the magnetic guider is placed outside the duodenum 4 at one end close to the pylorus 3, and the magnetic guider adsorbs the tail end of the guide wire, so that the tail end of the guide wire is drawn into the duodenum 4 through the position of the pylorus 3;

s4, taking the magnetic guider out of the body, and continuing to convey the jejunum tube forwards to the jejunum position.

The whole guide wire 200 can not be attracted by the magnetic guider 300, a guiding part 201 at the tail end of the guide wire 200 is provided with a substance with stronger magnetic force so as to be attracted with the magnetic guider outside the body, and the guiding part 201 and the guide wire 200 are integrally arranged in the specific embodiment. In particular embodiments, magnetic introducer 300 may employ a super magnet capable of exhibiting magnetic forces.

It can be seen from the above embodiment that the magnetic guide 300 is placed outside the duodenum 4 at the end close to the pylorus 3 through the body surface mark, and when the jejunum enters the stomach 2 and is conveyed forwards, the guide part 201 at the end of the jejunum tube is adsorbed by the magnetic guide 300, so that the jejunum tube can move towards the magnetic guide 300, and because the magnetic guide 300 is placed at the downstream of the pylorus 3, the jejunum tube can be pulled to pass through the pylorus 3 more accurately.

It is easy to understand that the invention solves the problem that the jejunum tube can not control the direction in the hollow viscus (stomach) by the mode, thereby improving the success rate and the efficiency of the jejunum tube placement. In addition, the jejunum tube under the external magnetic force guidance has the advantages of simple operation method, low technical difficulty, easy conversion and good practicability and popularization in medical clinic.

In a further technical scheme, in order to facilitate filling of fluids such as medicines or nutrient solutions, a nozzle 102 for filling the fluids is arranged at the beginning of the jejunum tube body 100, and the nozzle 102 is arranged in a horn-shaped structure so as to facilitate filling of the fluids and prevent the fluids from being thrown.

In a further technical scheme, a blocking body 202 capable of blocking the orifice 102 of the jejunal tube body is arranged at the opening end of the guide wire 200, and the blocking body 202 is matched with the orifice 102 of the jejunal tube body 100 in shape. Through the structural arrangement, the blocking body 202 can prevent the guide wire 200 from sliding into the jejunum tube body 100 due to unexpected factors such as stress; and the guide wire 200 can be conveniently held by people so as to insert the guide wire 200 into the jejunum tube body 100 or take the guide wire 200 out of the jejunum tube body 100, thereby being beneficial to cleaning and maintaining the jejunum tube in the later period.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (5)

1. The jejunum tube under the external magnetic guidance is characterized by comprising a jejunum tube body, a guide wire and a magnetic guide device arranged outside the jejunum tube body;

the jejunum tube body is of a hollow tubular structure, and a plurality of nutrient holes are formed in the side wall, close to the tail end, of the jejunum tube body;

the guide wire is in a long strip shape and is arranged in the jejunum tube body, the length of the guide wire is matched with that of the jejunum tube body, the tail end of the guide wire is integrally connected with a guide part, and the guide part can move towards the magnetic guide under the magnetic adsorption action of the magnetic guide.

2. The in vitro magnetically guided jejunal tube of claim 1, wherein: the magnetic force guider is a super magnet capable of displaying magnetic force.

3. The in vitro magnetically guided jejunal tube of claim 1 or 2, wherein: the opening end of the jejunum tube body is provided with a tube opening for filling fluid, and the tube opening is of a horn-shaped structure.

4. The in vitro magnetically guided jejunal tube of claim 3, wherein: the opening end of the guide wire is provided with a plugging body capable of plugging the orifice of the jejunal tube body, and the plugging body is matched with the orifice of the jejunal tube body in shape.

5. A method of manipulating the magnetic-guided jejunal tube in vitro according to claim 1, comprising the steps of:

s1, carrying out body surface positioning on the pylorus and the duodenum under ultrasound, and marking the positions of the pylorus and the duodenum on the body surface;

s2, placing the jejunum tube to the stomach through mouth or nasal cavity by using a method of inserting a gastric tube blindly;

s3, according to the position marks of the pylorus and the duodenum in the step S1, the magnetic guider is placed outside the body of one end of the duodenum close to the pylorus, and the magnetic guider adsorbs the tail end of the traction guide wire, so that the tail end of the traction guide wire is pulled to enter the duodenum through the pylorus position;

s4, taking the magnetic guider out of the body, and continuing to convey the jejunum tube forwards to the jejunum position.

Images