CN108606930A - A kind of Medical Devices and preparation method thereof for congenital esophageal atresia - Google Patents

Abstract

The invention discloses a medical device for congenital esophageal atresia, comprising an upper guiding device, a lower guiding device and a digital Gauss meter, the upper guiding device includes a first upper flexible tube, and a first upper flexible tube arranged at the lower end of the first upper segment flexible tube The upper segment magnetic attraction device, the lower segment guide device includes a first lower segment hose, and a lower segment magnetic attraction device arranged at the upper end of the first lower segment hose. The invention also discloses a preparation method of the medical device for congenital esophageal atresia. The invention can realize the synchronous growth of the upper blind end and the lower blind end of the esophagus and self-healing and penetration, retain the integrity of the structure and function of the esophagus of the patient, avoid the surgical method of replacing the esophagus with other organs, and at the same time make the upper blind end through the action of magnetic force. The end and the lower blind end of the esophagus are automatically anastomosed and connected, and the growth of the esophagus is assisted by a digital gauss meter to reduce the number of operations and minimize the trauma caused by surgical treatment.

Description

A medical device for congenital esophageal atresia and its preparation method

technical field

The invention relates to a medical device and a preparation method thereof, in particular to a medical device for congenital esophageal atresia and a preparation method thereof.

Background technique

Esophageal atresia is a serious congenital disease in newborns, and the incidence rate is about 1/2500-1/4000 of newborns. Refers to the congenital discontinuity of the children's esophagus, forming discontinuity and penetration of the proximal and distal ends, forming the upper and lower ends. Blind end With the development of medical technology, the treatment of esophageal atresia has made great progress, but there are still many problems, especially the treatment of long-segment esophageal atresia, which is still a difficult problem in pediatric surgery. At present, although there are many surgical methods for long-segment esophageal atresia, most of them use esophageal replacement surgery (gastric esophagus replacement, colon esophagus replacement), which requires multiple operations, and the physiological structure is greatly damaged, which seriously affects children. Quality of life in the future; esophageal traction (Foker operation) for extending the esophagus also requires repeated operations, which has a long cycle, large trauma, and unsatisfactory curative effect.

Currently, there are two solutions for long-segment deletion esophageal atresia. 1. Surgical methods for esophageal extension, including 1) esophageal seromuscular incision (Livaditis) (can effectively extend the esophagus by 5-10 mm), but the disadvantage is that the length of extension is limited and the necrosis of the proximal end of the esophagus may cause anastomotic leakage Dangerous; 2) Esophageal traction (Foker surgery) uses external force such as sutures to accelerate the growth of the esophagus and delay the first-stage anastomosis. The disadvantage is that the sutures are easy to fall off and repeated thoracotomies are required. 2. Esophageal replacement surgery (including gastric esophagus replacement surgery, colon esophagus replacement operation, small intestine esophagus replacement operation, etc.), gastrostomy and proximal neck esophagostomy in stage I surgery, feeding through gastrostomy tube after operation More than 6 months to stage II surgery. The disadvantage is that the treatment period is long, which changes the physiological and anatomical structure of the digestive tract in children, and there are many postoperative complications, which affect the long-term quality of life.

Chinese patent 105380686A discloses a device for promoting the growth of the upper blind end of congenital esophageal atresia, but the patent still has the following problems: 1) Only the upper blind end can be promoted, but the precise docking of the upper blind end and the lower blind end cannot be realized. In the end, it is still necessary to suture the upper blind end and the lower blind end through thoracotomy; 2) The esophageal extension method is rough and mechanical, which is likely to cause complications or other unknown factors of esophageal extension; 3) The feeding problem of the child is not considered, During actual use, it is still necessary to adopt additional settings to feed the esophagus or try to feed by other methods; 4) the problem of digestive juice accumulated in the esophagus cannot be dealt with.

Contents of the invention

In view of the above deficiencies, the object of the present invention is to provide a method for preparing a medical device for congenital esophageal atresia, which is convenient, efficient, and easy to manufacture in batches; The upper blind end and the lower blind end esophagus grow synchronously, retaining the structural and functional integrity of the child's esophagus, retaining the child's own esophageal structure, and avoiding the use of other organs to replace the esophagus, which is in line with human physiology and greatly improves At the same time, the upper blind end and the lower blind end esophagus are automatically anastomosed and connected, reducing the number of operations and minimizing the trauma caused by surgical treatment.

The technical scheme that the present invention adopts for achieving the above object is:

A medical device for congenital esophageal atresia, comprising an upper guiding device, a lower guiding device and a digital gauss meter, the upper guiding device includes a first upper flexible tube and an upper magnetic attraction set at the lower end of the first upper flexible tube device, the lower section guiding device includes a first lower section hose, and a lower section magnetic attraction device arranged at the upper end of the first lower section hose.

As a further improvement of the present invention, the upper end of the first upper section of the hose is respectively provided with a negative pressure suction port and an upper section of nutrition port; the lower end of the first lower section of the hose is provided with a hydraulic propulsion port; the lower section of the guiding device also includes: Section nutrition tube, one end of the lower section of the nutrition tube is passed through the lower section of the first lower section of the flexible pipe, and the other end is passed through the middle section of the first lower section of the flexible pipe.

As a further improvement of the present invention, the upper magnetic attraction device includes a plurality of perforated metal balls arranged inside the lower end of the first upper hose, and an upper conduction magnet arranged at the lower end of the first upper hose.

As a further improvement of the present invention, the upper section guiding device also includes a second upper section hose sleeved outside the first upper section hose, an upper section conducting hard tube arranged at the lower end of the second upper section hose, and the upper section conducting hard tube The tube is also attached to the lower end of the upper conduction magnet. The lower part of the second upper hose is provided with a number of through holes. A through opening, and its lower end is a convex interface or a concave interface.

As a further improvement of the present invention, the upper segment of the conductive magnet is vertically penetrated with a vertical through hole for the upper segment magnet, the horizontal through left and right is provided with horizontal through holes, and the horizontal front and rear through holes are provided with horizontal front and rear through holes; the perforated metal ball is With the center of the circle as the center, a left opening and a right opening are opened along the horizontal left and right directions, an upper opening and a lower opening are opened along the vertical direction, and a front opening and a rear opening are opened along the horizontal front and rear directions. The left opening, right opening, upper opening, The lower opening, the front opening and the rear opening communicate with each other.

As a further improvement of the present invention, the lower guiding device further includes a second lower hose sleeved outside the first lower hose, and the second lower hose is arranged on the outer part of the lower section of the first lower hose. There is an inner support device, and an outer support device is arranged on the outer portion of the lower section of the first lower section of the hose and outside the human body.

As a further improvement of the present invention, the shape of the inner support device or the outer support device is a polygon with a hollow center.

As a further improvement of the present invention, the upper section of the first lower hose is a threaded telescopic tube.

As a further improvement of the present invention, the lower segment magnetic attraction device includes a lower segment conduction magnet arranged at the upper end of the first lower segment hose, and a lower segment conduction hard tube arranged at the upper end of the lower segment conduction magnet, and the lower segment conduction magnet The vertical through-hole is provided with the vertical through-hole of the lower segment of the magnet, and the vertical through-hole of the lower segment of the hard tube is provided with a vertical through-hole of the lower segment of the hard tube, and its lower end is a concave or convex interface that matches the upper segment of the hard tube; the lower segment The conduction magnet is a permanent magnet or an electromagnet.

As a further improvement of the present invention, the lower magnetic attraction device further includes a pinhole camera arranged inside the vertical through opening of the lower magnet.

A preparation method for medical equipment for congenital esophageal atresia, comprising the following steps:

Prepare the upper section guide device, which includes: preparing the first upper section hose, and preparing the upper section magnetic attraction device, and setting the upper section magnetic attraction device at the lower end of the first upper section hose;

Prepare the lower guiding device, which includes: preparing the first lower hose, and preparing the lower magnetic attraction device, and setting the lower magnetic attraction device on the upper end of the first lower hose;

Prepare a digital gaussmeter.

As a further improvement of the present invention, the step of preparing the upper magnetic attraction device includes:

Prepare a number of perforated metal balls and upper conducting magnets;

A number of perforated metal balls are arranged inside the lower end of the first upper section of the hose;

The upper conducting magnet is arranged at the lower end of the first upper hose.

As a further improvement of the present invention, the step of preparing the upper guide device also includes:

Set up a negative pressure suction port and a nutrition port at the upper end of the first upper section of the hose;

Prepare the second upper segment hose and the upper segment conduction hard tube;

Sleeve the second upper hose on the outside of the first upper hose;

Set the upper conduction hard tube on the lower end of the second upper hose, and attach the upper conduction hard tube to the lower end of the upper conduction magnet

A number of through holes are opened in the lower section of the second upper section of the hose;

A vertical through opening of the upper section of the hard tube is provided vertically on the upper conduction hard tube, and a number of horizontal through openings are provided in the horizontal connection, and the lower end is set as a convex interface or a concave interface.

As a further improvement of the present invention, the step of preparing the lower guide device also includes:

Prepare the second lower hose, the inner support device, and the outer support device;

Sleeve the second lower hose on the outside of the first lower hose;

An inner support device is provided on the outer portion of the second lower section of the hose located at the lower section of the first lower section of the hose;

An external support device is arranged on the outer portion of the second lower section of the hose located at the lower section of the first lower section of the hose and outside the human body.

As a further improvement of the present invention, the step of preparing the lower magnetic attraction device includes:

Prepare the lower conduction magnet, the lower conduction hard tube, and the pinhole camera;

The lower conduction magnet is arranged on the upper end of the first lower hose;

Set the lower conduction hard tube on the upper end of the lower conduction magnet;

A vertical through-hole for the lower magnet is provided for the vertical penetration of the lower conduction magnet;

Set the pinhole camera inside the vertical through-hole of the lower magnet;

Open the vertical through opening of the lower section of the hard tube in the vertical connection of the lower section of the hard tube;

Set the lower end of the lower conduction hard tube as a concave interface or a convex interface that matches the upper conduction hard tube;

The lower conduction magnet is set as a permanent magnet or an electromagnet.

The beneficial effects of the present invention are:

1) The upper blind end and the lower blind end simultaneously promote the growth of the esophagus, shortening the operation time;

2) The upper blind end and the lower blind end esophagus are connected through the convex tube and the concave tube to realize automatic anastomosis and penetration, reduce the number of operations, and minimize the trauma caused by surgical treatment;

3) Accurately control the traction force and direction of esophageal extension, and at the same time use food stimulation, appropriate gravity traction, magnetic traction, hydraulic thrust and gentle mechanical stretching to extend the esophagus, avoiding rough mechanical extension methods and reducing esophageal elongation complications and uncertainties;

4) The integrity of the structure and function of the esophagus of the child is preserved, and the surgical method of replacing the esophagus with other organs is avoided, which is in line with human physiology and greatly improves the quality of life of the child in the future;

5) Preserving the original organs and anatomical relationship to the greatest extent, avoiding the thoracoabdominal adhesion and scar caused by multiple operations, and creating good anatomical conditions for further treatment;

6) Through precise control, the blind end of the esophagus can be gradually extended, closed, adhered, and penetrated, reducing the number of operations, breaking through the confinement of long-segment esophageal atresia surgery as the only way to treat it, greatly simplifying the treatment of esophageal atresia, reducing The surgical threshold for the treatment of esophageal atresia has been raised;

7) The digital gaussmeter non-invasively measures the distance between the upper and lower blind ends of the esophagus, which reduces the need to use X-ray to observe the growth of the esophagus, reduces the radiation exposure of children with image evaluation, and protects the radiation-sensitive tissues and organs of children;

8) Clinical trials have shown that when the equipment provided by the present invention is used for treatment, the number of operations can be effectively reduced, the number of times of anesthesia and X-ray for children can be reduced, auxiliary injuries can be reduced, and hospitalization time can be reduced by more than half. The pain of the child and the economic pressure of the family save about half of the hospitalization expenses.

The foregoing is an overview of the technical solution of the invention, and the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the use state of the present invention;

Fig. 2 is a schematic structural view of the upper guide device of the present invention;

Fig. 3 is a schematic structural view of the lower guiding device of the present invention;

Fig. 4 is the schematic structural view of the perforated metal ball of the present invention;

Fig. 5 is a schematic structural view of the upper section of the conduction magnet of the present invention;

Fig. 6 is a schematic structural view of the upper conduction hard tube of the present invention;

Fig. 7 is a structural schematic diagram of the lower stage conduction magnet of the present invention;

Fig. 8 is a schematic structural view of the lower conduction hard tube of the present invention.

Among them, the upper section guide device 1, the lower section guide device 2, the first upper section hose 11, the upper section magnetic attraction device 12, the first lower section hose 21, the lower section magnetic attraction device 22, the negative pressure suction port 111, the upper section nutrition port 112, Pediatric surgical aspirator 15, perforated metal ball 121, upper conducting magnet 122, second upper hose 13, through hole 131, upper conducting hard tube 14, hydraulic propulsion device 23, second lower hose 24, inner support Device 25, external support device 26, lower conduction magnet 221, lower conduction hard tube 27, pinhole camera 222, digital gauss meter 3, hydraulic propulsion port 211, lower nutrition tube 28.

Detailed ways

In order to further illustrate the technical means and functions adopted by the present invention to achieve the predetermined purpose, the specific implementation modes of the present invention will be described in detail below in conjunction with preferred embodiments.

1 to 3, the present embodiment provides a medical device for congenital esophageal atresia, including an upper guiding device 1, a lower guiding device 2, and a digital gauss meter 3, and the upper guiding device 1 includes a first The upper hose 11, and the upper magnetic attraction device 12 arranged at the lower end of the first PU upper pipe, the lower guide device 2 includes the first lower hose 21, and the lower magnetic attraction device arranged at the upper end of the first lower hose 21. The suction device 22 realizes the combination of the upper blind end and the lower blind end esophagus through magnetic guidance. The digital gauss meter cooperates with the outside to measure the distance between the upper and lower blind ends of the esophagus non-invasively, reducing the need to use X-ray to observe the growth of the esophagus, reducing the radiation exposure of children in image evaluation, and protecting the radiation-sensitive tissues and organs of children.

Please refer to Fig. 2 and Fig. 4-6, as a further improvement of the present invention, the upper end of the first upper section hose 11 is respectively provided with a negative pressure suction port 111 and an upper section nutrition port 112; the lower end of the first lower section hose is provided with There is a hydraulic propulsion port 211; the lower section guiding device 2 also includes a lower nutrition tube 28, one end of the lower nutrition tube 28 is connected by the lower section of the first lower hose 21, that is, the first lower hose 21 is located outside the patient's body. Partially penetrates, and the other end passes through the middle section of the first lower segment flexible pipe 21, and reaches the stomach of the child. Negative pressure suction port 111 is connected with pediatric surgical aspirator 15 to suck out excess digestive juice in the esophagus. Hydraulic propulsion port 211 is used to connect with hydraulic propulsion device 23 to propel the growth of the lower esophagus through hydraulic pressure. The upper nutritional port 112 and the lower segment The nutrition tube 21 is used for feeding, to ensure the normal intake of nutrition for the child, and to stimulate the growth of the esophagus through food.

As a further improvement of the present invention, the upper magnetic attraction device 12 includes a number of perforated metal balls 121 arranged inside the lower end of the first PU upper tube, and an upper conductive magnet 122 arranged at the lower end of the first PU upper tube. The upper section of the conducting magnet 122 is vertically connected with vertical openings for the upper section of the magnet, horizontally connected horizontally with left and right openings, and horizontally connected with front and rear is provided with horizontal front and rear through openings. The perforated metal ball 121 plays the role of gravity traction, and the upper conducting magnet 122 plays the role of magnetic traction. At the same time, the perforated metal ball 121 is attached to the upper conducting magnet 122, and the perforated metal ball 121 will be gradually magnetized. Increase the attractive force of the upper magnetic attraction device 12 to further promote the growth of the upper blind end of the esophagus; set the upper magnet vertical through-holes, horizontal left-right through-holes, and horizontal front-back through-holes to provide unobstructed passages for feeding and sucking out digestive juices for children.

As a further improvement of the present invention, the upper guiding device 1 also includes a second upper hose 13 sheathed outside the first upper hose 11, an upper conduction hard tube 14 arranged at the lower end of the second upper hose 13, The upper conduction hard tube 14 is also attached to the lower end of the upper conduction magnet 122, and the lower part of the second upper segment hose 13 is provided with a plurality of through holes 131, and the upper segment of the conduction hard tube 14 is vertically connected with an upper segment of the hard tube. There are several horizontal through openings for vertical through openings and horizontal through openings, and the lower ends are convex joints or concave joints. The second upper section hose 13 is used to protect the first upper section hose 11 and the upper section magnetic attraction device 12, the upper section conduction hard tube 14 is used as the bottom end for feeding and absorbing the digestion liquid, and at the same time, follow-up preparations and the lower section conduction hard tube 27 join.

As a further improvement of the present invention, the perforated metal ball 121 is centered on the center of the circle, with a left opening and a right opening along the horizontal left and right directions, an upper opening and a lower opening along the vertical direction, and a front opening along the horizontal front and rear directions. And the rear opening, the left opening, the right opening, the upper opening, the lower opening, the front opening and the rear opening communicate with each other. It is convenient to feed food around the esophagus and absorb digestive fluid at the same time.

Please refer to Fig. 3, Fig. 7 and Fig. 8, as a further improvement of the present invention, the lower section guide device 2 also includes a second lower section hose 24 sleeved outside the first lower section hose 21, the second lower section The hose 24 is provided with an inner supporting device 25 at the outer part of the lower section of the first lower hose 21 , and an outer supporting device 26 is arranged at the outer part of the lower section of the first lower hose 21 outside the human body. The hydraulic propulsion device 23 can continuously or intermittently transmit thrust to the second lower hose 24 and the first lower hose 21 with better supporting capacity according to actual needs, so that the lower esophagus can grow in a specific direction as much as possible, which is convenient for subsequent passage Magnetic engagement.

As a further improvement of the present invention, the shape of the inner support device 25 or the outer support device 26 is a polygon with a hollow center. In this embodiment, hexagonal silica gel with a hollow center is used as the support device. The inner supporting device 25 or the outer supporting device 26 plays a role in supporting the lower guiding device 2, so as to avoid the occurrence of the lower guiding device 2 when the hydraulic propulsion device 23 exerts force.

As a further improvement of the present invention, the upper section of the first lower section of the flexible tube 21 is a threaded telescopic tube, which has a better ability to support the esophagus than ordinary smooth round tubes, avoids the position change of the lower section of the guiding device 2, and is more convenient to perform Direction change, with a certain degree of stretching ability, to avoid excessive stimulation to the esophagus.

As a further improvement of the present invention, the lower segment magnetic attraction device 22 includes a lower segment conduction magnet 221 arranged at the upper end of the first lower segment hose 21, and a lower segment conduction hard tube 27 arranged at the upper end of the lower segment conduction magnet 221, so The lower conduction magnet 221 is vertically penetrated with a lower magnet vertical through opening, and the lower conduction hard tube 27 is vertically penetrated with a lower hard tube vertical through opening, and its lower end is a concave hole that matches the upper conduction hard tube 14. interface or convex interface; the lower conduction magnet 221 is a permanent magnet or an electromagnet, and the electromagnet is convenient for adjusting the magnetic force to adjust the magnetic force guiding effect. The lower conduction magnet 221 cooperates with the upper conduction magnet 122 to play a magnetic guiding role. The lower conduction magnet 221 and the lower conduction hard tube 27 are connected to facilitate the diffusion of salt water or distilled water injected by the hydraulic propeller.

The upper conduction magnet 122 is arranged behind the upper conduction hard tube 14, and the lower conduction magnet 221 is arranged behind the lower conduction hard tube 27, in order to avoid violent bonding between the magnets and damage to the esophagus. The back of the hard tube 14 and the hard tube 27 of the lower segment provides a gentle continuous force, and the size of the continuous force can be controlled by adjusting the length of the hard tube 14 of the upper segment and the hard tube 27 of the lower segment. The connection between the upper guide device 1 and the lower guide device 2 is completed by the upper conduction hard tube 14 and the lower conduction hard tube 27 .

As a further improvement of the present invention, the lower segment magnetic attraction device 22 also includes a pinhole camera 222 arranged inside the vertical through opening of the lower segment magnet, which is convenient for adjusting the growth direction of the lower blind end esophagus and for the lower segment guide device 2 to pass through the gastric cardia.

A preparation method for medical equipment for congenital esophageal atresia, comprising the following steps:

Prepare the upper section guide device 1, which includes: preparing the first upper section hose 11, and preparing the upper section magnetic attraction device 12, and setting the upper section magnetic attraction device 12 at the lower end of the first upper section hose 11;

Prepare the lower guiding device 2, which includes: preparing the first lower hose 21, and preparing the lower magnetic attraction device 22, and setting the lower magnetic attraction device 22 on the upper end of the first lower hose 21;

Preparation of digital gaussmeter3.

As a further improvement of the present invention, the step of preparing the upper magnetic attraction device 12 includes:

Prepare a number of perforated metal balls 121 and upper conducting magnets 122;

A number of perforated metal balls 121 are arranged inside the lower end of the first upper hose 11;

The upper conducting magnet 122 is arranged at the lower end of the first upper hose 11 .

As a further improvement of the present invention, the step of preparing the upper guiding device 1 also includes:

A negative pressure suction port 111 and a nutrition port 112 are respectively provided at the upper end of the first upper hose;

Prepare the second upper segment hose 13 and the upper segment conduction hard tube 14;

The second upper hose 13 is sleeved on the outside of the first upper hose 11;

The upper segment conduction hard tube 14 is arranged on the second upper segment hose 13 lower end, and the upper segment conduction hard tube 14 is attached to the upper segment conduction magnet 122 lower end

A plurality of through holes 131 are opened in the lower section of the second upper hose 13;

On the upper section conduction hard pipe 14, the vertical through opening of the upper section hard pipe is provided vertically, and several horizontal through openings are provided in the horizontal connection, and its lower end is set as a convex interface or a concave interface.

As a further improvement of the present invention, the step of preparing the lower guide device 2 also includes:

Prepare the second lower segment hose 24, the inner support device 25, and the outer support device 26;

Set the second lower hose 24 outside the first lower hose 21;

An inner support device 25 is provided on the outer part of the second lower hose 24 located at the lower section of the first lower hose 21;

An external support device 26 is provided on the outer portion of the second lower section hose 24 located at the lower section of the first lower section hose 21 and outside the human body.

As a further improvement of the present invention, the step of preparing the lower magnetic attraction device 22 includes:

Prepare the lower conduction magnet 221, the lower conduction hard tube 27, and the pinhole camera 222;

The lower conduction magnet 221 is arranged on the upper end of the first lower hose 21;

The lower conduction hard tube 27 is arranged on the upper end of the lower conduction magnet 221;

A vertical through-hole for the lower magnet is provided in the lower conduction magnet 221 vertically;

The pinhole camera 222 is arranged inside the vertical through-hole of the lower magnet;

A vertical through opening of the lower hard pipe is provided in the lower conduction hard pipe 27 vertically;

Set the lower end of the lower conduction hard tube 27 as a concave interface or a convex interface that matches the upper conduction hard tube 14;

The lower conduction magnet 221 is set as a permanent magnet or an electromagnet.

The use process of this embodiment is as follows:

(1) The upper guide device 1 enters the bottom of the upper blind end esophagus from the throat, and the lower guide device 2 uses the pinhole camera 222 to observe, find the gastric cardia, and reach the lower esophagus through the full-thickness skin, gastrostomy opening, and gastric cardia For the blind end, after the lower guiding device 2 falls off to the stomach, the pinhole camera 222 is used to observe again, and it is introduced into the blind end of the lower esophagus through the pylorus;

(2) The upper guide device 1 stimulates the growth of the upper blind end esophagus according to gravity guidance and metal ball magnetization, and the lower guide device 2 provides intermittent or continuous thrust to the threaded telescopic tube through the hydraulic propulsion device 23 to stimulate the growth of the lower blind end esophagus ;

(3) The upper guiding device 1 feeds food through the nutrition port 112, and at the same time stimulates the growth of the esophagus through the food, and draws out excess digestive juice in the esophagus through the suction port;

(4) The lower guiding device 2 observes the growth of the lower blind end of the esophagus through the pinhole camera 222 or X-ray, and at the same time changes the forward direction of the lower guiding device 2 through the first lower flexible tube 21 to guide the lower blind end of the esophagus to the upper blind end of the esophagus. terminal growth;

(5) The lower blind end of the esophagus and the upper blind end of the esophagus are gradually approaching, reaching the magnetic force distance between the upper conducting magnet 122 and the lower conducting magnet 221, and starting to guide the lower blind end of the esophagus and the upper blind end of the esophagus to grow closer to each other through magnetic force ;

(6) Using a digital gauss meter 3, measure the distance between the upper conducting magnet 122 and the lower conducting magnet 221 outside the patient's body, to know the distance between the lower blind end of the esophagus and the upper blind end of the esophagus, and at the same time assist in appropriate X-ray observation, while continuing to adjust the growth direction;

(7) Under the action of the upper conduction magnet 122 and the lower conduction magnet 221, the concave surface and the convex surface of the upper conduction hard tube 14 and the lower conduction hard tube 27 are interlocked with each other under the principle of maximizing the gravitational area;

(8) Under the action of continuous, uniform and stable magnetic force, the outer edge of the esophagus on the concave-convex surface is adhered, the esophagus inside the tube is necrotic and falls off, and enters the new esophagus, the outer edge of the esophagus is anastomosed, and the esophagus is unblocked.

The key point of the present invention mainly lies in, the application adopts similar (1.8kg) with neonatal body weight, and esophagus and neonatal esophagus lumen (diameter 3mm), muscle strength similar experiment big white rabbit (from Guangdong Provincial Animal Experiment Center, Three generations of purebred white rabbits), after stretching the esophagus in vitro, it was found that for every increase of 9 Newton force, the esophagus would be extended by 2mm, and when the force exceeded 20 Newton, the esophagus would tear. The esophagus was cut into two sections and sutured (similar to the upper blind end and lower blind end of the esophagus), and a magnet slightly smaller than the diameter of the esophagus was placed. After an attraction test, it was found that when the magnets meet 2 cm away, the attractive force is very small, which is not enough Acting as an external force to pull the esophagus, the gravitational force increases at a distance of 1 cm, and it is instantly attracted and close, and the esophagus is cut off due to excessive gravitational force. Afterwards, the magnetic testing equipment was used to measure the mutual attraction between two magnets with a diameter of 3mm. It was found that when the distance between the two magnets was greater than 2cm, the attraction could be ignored.

However, the common esophageal defect in newborns is 3-7 cm. When the esophageal defect is less than 3 cm, the esophagus can be sutured directly through surgery without using additional equipment to promote its growth. Since thoracic and laparoscopic operations are minimally invasive operations, only using the upper blind-end conducting magnet and the lower blind-end conducting magnet to realize the self-healing connection between the esophagus is not very practical in clinical practice.

However, the present application improves the magnetic effect and the gravity effect by setting porous metal balls, so that the upper blind end guide device has the function of promoting the growth of the upper blind end of the esophagus, and at the same time, the upper blind end conduction magnet and the lower blind end conduction are added. The magnetic force between the magnets enables the upper blind end and the lower blind end of the esophagus to approach each other through the magnetic force when the upper blind end and the lower blind end of the esophagus are at a relatively long distance, thereby realizing the effect of promoting the growth of the esophagus through the magnetic force. The application also effectively controls the interaction force between the magnets by arranging the upper conduction hard tube and the lower conduction hard tube, avoiding the situation that the attraction force between the magnets increases sharply and causes the esophagus to tear. In the present application, a hydraulic propulsion device is also provided so that the lower blind end can also grow simultaneously. Because the trauma site is small and the nutrition port is provided to effectively supply nutrition, this application also effectively ensures that the child can maintain a certain range of activities during the operation and maintain sufficient nutrition intake.

This application realizes the precise control of the traction force and direction of esophageal extension. At the same time, food stimulation, appropriate gravity traction, magnetic traction, hydraulic thrust and gentle mechanical stretching are used to extend the esophagus, avoiding rough mechanical extension methods, and reducing esophagus. Prolonged complications and uncertainties have greater clinical significance.

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention in any way, so adopting the same or similar technical features as the above-mentioned embodiments of the present invention is within the protection scope of the present invention.

Claims (12)

1. a kind of Medical Devices for congenital esophageal atresia, which is characterized in that including epimere guide device, hypomere guiding dress It sets and digital gaussmeter, the epimere guide device includes the first epimere hose and is set to the first epimere hose lower end Epimere magnetic force suction device, the hypomere guide device includes the first hypomere hose, and is set on the first hypomere hose The hypomere magnetic force suction device at end.

2. being used for the Medical Devices of congenital esophageal atresia as described in claim 1, which is characterized in that first epimere is soft Pipe upper end offers vacuum aspiration port and hypomere nutrition mouth respectively；The first hypomere hose lower end is provided with hydraulic drive Mouthful；The hypomere guide device further includes a hypomere nutrient canal, which is worn by the hypomere of the first hypomere hose Enter, the other end is pierced by by the stage casing of the first hypomere hose.

3. being used for the Medical Devices of congenital esophageal atresia as described in claim 1, which is characterized in that the epimere magnetic force is inhaled Leading-in device includes several open-porous metal balls being set to inside the first epimere hose lower end and is set under the first epimere hose Magnet is connected in the epimere at end；The epimere guide device further include be sheathed on the second epimere hose outside the first epimere hose, It is set to the epimere conducting hard tube of the second epimere hose lower end, magnet lower end is also connected with epimere and is affixed for epimere conducting hard tube It closes, the second epimere hose hypomere offers several through-holes, and the epimere conducting hard tube is vertically through offering epimere hard tube Vertically through mouth, level perforation offers several horizontal openings, and its lower end is convex interface or recessed interface.

4. being used for the Medical Devices of congenital esophageal atresia as claimed in claim 3, which is characterized in that magnetic is connected in the epimere Iron is vertically through epimere magnet is offered vertically through mouth, and the perforation of level left and right offers horizontal left and right openings, before and after horizontal Perforation offers openings before and after level；The open-porous metal ball offers a left side centered on the center of circle, along horizontal left and right directions and opens Mouthful and right opening, vertically offer opening and under shed, along horizontal front-rear direction offer open front and After-opening, the left opening, right opening, upper opening, under shed, open front, after-opening interconnect.

5. being used for the Medical Devices of congenital esophageal atresia as described in claim 1, which is characterized in that the hypomere guiding dress It further includes the second hypomere hose being sheathed on outside the first hypomere hose to set, and the second hypomere hose is in positioned at the first hypomere hose The exterior section of hypomere is provided with inner supporting device, in the exterior section positioned at the first hypomere hose hypomere and is located at human vitronectin Place is provided with outer support device.

6. being used for the Medical Devices of congenital esophageal atresia as claimed in claim 5, which is characterized in that the inner supporting device Or the shape of outer support device is the hollow polygonal in middle part.

7. being used for the Medical Devices of congenital esophageal atresia as described in claim 1, which is characterized in that first hypomere is soft The epimere of pipe is screw telescopic pipe.

8. being used for the Medical Devices of congenital esophageal atresia as described in claim 1, which is characterized in that the hypomere magnetic force is inhaled Leading-in device includes being set to the hypomere conducting magnet of the first hypomere hose upper end and being set under hypomere conducting magnet upper end Hard tube is connected vertically through mouth, the hypomere vertically through hypomere magnet is offered in section conducting hard tube, the hypomere conducting magnet Vertically through offering hypomere hard tube vertically through mouth, and its lower end is that recessed interface that hard tube matches is connected with epimere or convex connects Mouthful；The hypomere conducting magnet is permanent magnetic iron or electromagnet.

9. being used for the Medical Devices of congenital esophageal atresia as claimed in claim 8, which is characterized in that the hypomere magnetic force is inhaled Leading-in device further includes being set to hypomere magnet vertically through the pinhole cameras inside mouth.

10. a kind of preparation method as described in any one of claim 1~9 for the Medical Devices of congenital esophageal atresia, It is characterized in that, includes the following steps：

Prepare epimere guide device comprising：It prepares the first epimere hose and prepares epimere magnetic force suction device, and will be upper Section magnetic force suction device is set to the first epimere hose lower end；

Prepare hypomere guide device comprising：Prepare the first hypomere hose, and prepare hypomere magnetic force suction device, and will under Section magnetic force suction device is set to the first hypomere hose upper end；

Prepare digital gaussmeter.

11. the preparation method for the Medical Devices of congenital esophageal atresia as claimed in claim 10, which is characterized in that institute It states and prepares epimere guide device step and further include：

Vacuum aspiration port and nutrition mouth are opened up respectively in the first epimere hose upper end；

Prepare the second epimere hose, epimere conducting hard tube；

Second epimere Hose Jacket is set to outside the first epimere hose；

Epimere conducting hard tube is set to the second epimere hose lower end, and magnet lower end is connected into epimere for epimere conducting hard tube It fits

Several through-holes are opened up in the second epimere hose hypomere；

Vertically through epimere hard tube is opened up vertically through mouth on epimere conducting hard tube, level perforation opens up several horizontal perforations Mouthful, it is convex interface or recessed interface that its lower end, which is arranged,；

The epimere magnetic force suction device step for preparing includes：

Prepare several open-porous metal balls and epimere conducting magnet；

Several open-porous metal balls are set to inside the first epimere hose lower end；

Epimere conducting magnet is set to the first epimere hose lower end.

12. the preparation method for the Medical Devices of congenital esophageal atresia as claimed in claim 11, which is characterized in that institute It states and prepares hypomere guide device step and further include：

Prepare the second hypomere hose, inner supporting device and outer support device；

Second hypomere Hose Jacket is set to outside the first hypomere hose；

Inner supporting device is arranged in the exterior section for being located at the first hypomere hose hypomere in the second hypomere hose；

It is located at the exterior section of the first hypomere hose hypomere in the second hypomere hose and setting outer support fills at human vitronectin It sets.

The hypomere magnetic force suction device step for preparing includes：

Prepare hypomere conducting magnet, hypomere conducting hard tube, pinhole cameras；

Hypomere conducting magnet is set to the first hypomere hose upper end；

Hypomere conducting hard tube is set to hypomere conducting magnet upper end；

In hypomere conducting magnet vertically through opening up hypomere magnet vertically through mouth；

By pinhole cameras be set to hypomere magnet vertically through mouth inside；

In hypomere conducting hard tube vertically through opening up hypomere hard tube vertically through mouth；

It is that the recessed interface or convex interface that hard tube matches are connected with epimere that hypomere conducting hard tube lower end, which is arranged,；

It is permanent magnetic iron or electromagnet hypomere to be arranged magnet is connected.