CN111281459A - Esophagus extension and anastomat capable of being accurately controlled in vitro - Google Patents

Abstract

The invention discloses an esophagus lengthening and anastomat capable of being accurately controlled in vitro, and belongs to the field of medical instruments. This anastomat divide into internal part (coincide), conduction part and external part (control part) coincide the part and be two disc appearance structures, the conduction part comprises hollow metal soft pipe and inside steel wire, but the control part accurate control extension length is at the millimeter level, will exert oneself through the conduction part and conduct to the anastomat can reach the esophagus extension of slowly controllable gradually and squeeze anastomotic effect. The lengthening and anastomosing device can lengthen and anastomose, has the functions of lengthening and anastomosing, and can overcome the defects that the existing anastomat cannot lengthen and the force, distance and the like cannot be accurately controlled.

Description

Esophagus extension and anastomat capable of being accurately controlled in vitro

Technical Field

The invention belongs to the technical field of medical treatment, and belongs to the class of medical instruments.

Background

Congenital esophageal blockade and esophageal-tracheal fistulas are the most common and serious malformations in esophageal dysplasia. The esophagus prolonging technology is mainly applied to long-section deletion type congenital esophagus closure and treatment of esophageal stenosis caused by various reasons such as chemical burns, operations, wounds, tumors and the like. At present, the treatment of esophageal stenosis has certain difficulties, and the current treatment techniques comprise: surgical excision anastomosis, surgical suture traction, magnetic force extension and squeezing technologies, and esophageal surgery is replaced by intestinal tubes, but various modes have certain limitation defects. Performing surgical excision anastomosis: the method is mainly suitable for normal esophagus anastomosis within a short distance of generally 2cm, can adopt a thoracotomy or thoracoscope anastomosis mode, and has difficult anastomosis and more complications if the esophagus is lost more. Traction of surgical suture: at present, some reports are made abroad, the domestic report has low success rate, complications such as suture falling, thoracic cavity infection, pneumothorax and the like easily occur, and the failure rate is high. Magnetic force lengthening and squeezing technology: 1 case is reported in China, but the defects that the magnetic force cannot be controlled, the magnetic force cannot act after a long distance, and premature anastomosis, squeezed esophagus rupture, pneumothorax, empyema and other thoracic cavity infections are easily caused by a short distance. Intestinal canal with esophagus operation, which is one of the treatment modes of replacing esophagus, the operation wound is large, the tissue structures of the intestinal canal and the esophagus are not the same, and the long-term effect is not certain. The expansion is carried out by using hard instruments such as a sacculus, a bougie and the like. The indications are narrow, and the traditional Chinese medicine composition is only suitable for patients with narrow esophagus and cannot be suitable for patients with esophageal loss. The effect is poor, and many children need to be dilated for several times or even tens of times. The diseased esophagus is still present. However, the above researches also find that the esophagus can be prolonged under the action of certain tension, and how to accurately control the prolonged esophagus organizes the treatment key point. The principle that human tissue can be elongated by being subjected to tension can be confirmed as follows. For example, the boao family of women is famous for the "long neck women". They wear the first copper collar two years later and the second collar from their 5 s. The collar is typically 8.5mm in diameter. With age, the neck can be worn with 5 to 25 collars, and the final weight can reach 25 to 30 kg. Magnetic force extension: the domestic research of Gaoya and Liushi Qi, etc. shows that the goal of prolonging the esophagus can be achieved by the anastomosis technology of magnetic squeezing, etc. It is shown that the aim of prolonging the tissues of the human body can be achieved by increasing the stress at the near-far end of the esophagus. The metal corrugated pipe is a composite metal pipe which has a long history and is formed by coating metal, spiral grains are arranged outside a hollow part, wires with certain sizes can pass through the pipe hole, the pipe can be bent into a certain shape in a three-dimensional space at will and can keep the shape of the pipe, the length and the size are basically stable during bending, the bent pipe has certain supporting force to support objects with certain weight, and the supporting force is controllable within a certain range. The surface is coated with plastic to protect the mucosa. May be used as a conductive portion of the stapler.

Disclosure of Invention

In order to solve the above problems, the present invention provides a novel soft force transmission device, which utilizes a tissue expansion technique to longitudinally extend the inside of an esophagus, so that two ends of a defective esophagus can gradually approach each other, and the end can be seamlessly anastomosed under the squeezing action to recover the continuity of the esophagus, thereby providing a new method for the treatment of long-section esophageal closure and complex stenosis. In order to achieve the purpose, the device adopts the following technical scheme. The device is divided into an intracorporeal portion (i.e., an anastomosis portion), a conduction portion, and an extracorporeal portion (i.e., a control portion). The intracorporeal anastomotic part adopts two disc-like structures, one of which is positioned at the upper end of the esophagus and close to the oral cavity, and the other is positioned at the far end of the esophagus and close to the stomach. The two disc-like structures are pressed and matched through a convex and concave nested mortise and tenon structure, and necrotic tissues are excised. A small hole is arranged between the two discs and can penetrate through the metal wire to conduct force, and the esophagus approaches to each other to play a role in prolonging and inosculating. The disc structure of the upper end can be acted with force through the metal corrugated pipe structure, and the effect of increasing the tension of the near-far end esophagus is achieved through the upward lifting of the metal wire and the downward pressing of the metal hose. To better control the extension length, the other section of the conductive portion is connected to a control device. The control device is composed of a sleeve with an internal thread and a hollow screw rod through which a metal wire can pass, after the screw rod and the metal wire are fixed, the length can be accurately controlled and extended through the screw rod and the spiral of the sleeve, and the length of the screw rod after being retracted is the length of the two metal discs close to each other. When the two disks are close to each other, the screw rod is continuously tightened to squeeze and necrose the tissues between the two disks, and the connected tissues are anastomosed to complete the anastomosis process. The device can solve the problems of extension and anastomosis of the esophagus at one time. The esophagus extension and the identical problem in current esophagus disease treatment process can be solved to this device, overcome the operation treatment and be limited to overcoming the uncontrollable nature of magnetism pressing technique, simultaneously through the length of the normal esophagus of controllable extension, be limited to the problem in the 2cm within range, the problem of having avoided operation many times among the existing treatment scheme, excise pathological change esophagus simultaneously in the normal esophagus of extension, reach the purpose of rebuilding a normal esophagus, the device structure is not complicated, the preparation technique degree of difficulty is not high, easy-to-use popularization.

FIG. 1 is a schematic side view of the device after bending;

FIG. 2 is a schematic view of the apparatus in its entirety straightened;

FIG. 3 is an exploded view of the anastomosis portion device;

FIG. 4 is a schematic view of the device in place;

FIG. 5 is a schematic view of the device after actuation;

fig. 6 is a schematic diagram of the effect of the device after anastomosis.

In fig. 1, the device is divided into an intracorporeal portion (anastomotic portion), a conductive portion, and an extracorporal portion (control portion). The intracorporeal part consists of one part of 1, 2 and 3. The conducting part consists of 3, 4. The extracorporeal part consists of 5, 6 and 7. 1 is a disk-like edge-raised structure with a small hole in the center, and is a force action part. 2 is a device which is arranged on the center of the other side and is matched with the esophagus 1, 4 is an action point, and a central small hole and a local annular bulge play a role in preventing slipping. 3 a device 4 which is used for preventing slipping after the practical thin medical stainless steel guide wire is pulled to pass through the device 1 is welded into a hose with a metal framework and can transmit the external force to the device 2. 5. The external sleeve 6 with internal thread is a hollow screw rod with external thread matched with the external sleeve 5 and is provided with an auxiliary force application handle. And 7 is a metal buckle device for preventing the sliding-off after 3 passes through 6. Wherein the materials 1, 2, 4, 5, 6, 7 and the like are made of medical implantation stainless steel materials or high-strength and anti-corrosion medical environment-friendly materials or medical metal materials. 3 is a medical metal material. Can be used for transmitting the force transmitted by the 6 and has the purpose of mutually balancing the two sheets of the anastomat. The specific implementation mode is as follows: the following detailed description of the present patent refers to the accompanying drawings and detailed description. 1. 2, the anastomotic part is in a two-disc-shaped structure, and the two parts have the functions of esophagus extension and squeezing anastomosis under the action of force. And 3 is a stainless steel wire which plays a role of drawing the part 1 and plays a role of transmitting force to the part 1. 4 is stainless steel metal corrugated pipe with diameter of 2-3mm, which can be arranged at the upper end of the esophagus and can longitudinally conduct pressure to 2 to play a role of squeezing. 5 and 6 are combined to form a continuous traction device, 5 is an external fixed sleeve, and after 6 and 3 are fixed, the continuous traction device plays a role in prolonging through the rotation of 6. When 1 and 2 are close to each other, the tissues between the two are necrotized by squeezing, and the anastomosis effect is achieved. When in use, the 3 passes through the holes in sequence 1, 2, 4, 5 and 6. The 1 is put into the near stomach end of the esophagus and fixed by purse-string suture. 2 is placed at the upper end of the esophagus and is sutured in a purse-string way to avoid tearing. 3 is led out through mouth after passing through the device 4, 6 is rotated to the bottom of 5, 3 passes through the bottom, and a small hole with the diameter of 4 being larger than the front end of 5 cannot pass through. After passing through 6, the 3 is carefully pushed 4 to approach the 2 and enter the anti-displacement groove. The 3 and the buckle are tightly fixed by the 6 device, and the surplus is reduced. When the postoperative health care product is used after operation, the health care product is rotated for 6 days every day, and rotated for a plurality of circles every day, the health care product is prolonged by 1-5mm, and the health care product is prolonged and gradually approached by 1-2. When the 1 and the 2 are close to each other, the screw can be screwed down to play a role of pressing and inosculating. See figure 4. the use of the device is that the device rotates 6 every day, rotates several circles every day, extends 1-5mm, and makes 1-2 close to each other to achieve the effect of extension and gradual approach, see figure 5. When 1 and 2 are close to each other, the screw can be screwed down to achieve the squeezing fit, and the pressing fit is shown in figure 6. And taking out the anastomotic stoma through the mouth after anastomosis is finished.

Claims (7)

1. An esophagus extending and anastomat is characterized by comprising an anastomosis portion, a transmission portion and a control portion, and is characterized in that the transmission portion is a deformable force transmission tube, and the control portion is an internal threaded tube accurate control structure.

2. The extender and stapler of claim 1 wherein the stapling portion is connected to one end of the conducting portion and the other end of the conducting portion is connected to the control portion.

3. The extender and stapler of claim 1 wherein the anastomosis portion is a nested disk-like structure having two parallel central apertures, the structure having anti-slip means.

4. The extension and anastomosis device according to claim 1, wherein said conducting portion comprises a soft force conducting device having an outer deformable force conducting tube and an inner metal guide wire.

5. The lengthening and stapling instrument according to claim 1, wherein the control portion has a precise control structure consisting of an externally threaded sleeve and an internally threaded hollow tube.

6. The extender and stapler of claim 1 wherein the conductive tube has a diameter greater than the cannula orifice but less than its outer diameter.

7. The lengthening and stapling device according to claim 1, characterized in that the material used is a medical metal material or a corrosion-resistant, high-hardness medical environmental-friendly material.

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