CN106236174A - A kind of magnetic anastomat being applicable to Cholangio-jejunostomy under peritoneoscope - Google Patents

Abstract

The invention discloses a magnetic stapler suitable for laparoscopic biliary-enteric anastomosis, comprising a magnetic stapler body, the magnetic stapler body including a magnetic stapler and a stapler used in conjunction with the magnetic stapler; The magnetic stapling head can be replaced; the stapler is reusable; the magnetic stapling head includes a first magnetic ring body and a second magnetic ring body; the stapler includes an operating handle, a stapler rod, a magnetic ring release device, Stapler rod steering adjustment device and thread adjustment device. The invention provides a magnetic stapler suitable for laparoscopic biliary-enteric anastomosis, which combines the minimally invasive characteristics of laparoscopic technology with many advantages of magnetic compression anastomosis technology, which can realize fast, safe, and no foreign matter in the anastomosis Residual laparoscopic biliary anastomosis.

Description

A magnetic stapler suitable for laparoscopic biliary-enteric anastomosis

technical field

The invention relates to the technical field of medical instruments, in particular to a magnetic stapler suitable for laparoscopic cholangioenterostomy.

Background technique

In many operations of hepatobiliary surgery, anastomosis of the bile duct and the small intestine is very important to restore the continuity of the digestive tract. The size of the abdominal incision brings different psychological pressures to the patients and affects the recovery and quality of life of the patients. Laparoscopic technique is a minimally invasive surgical technique, which avoids the disadvantages of large incisions in traditional hepatobiliary surgery, and is more in line with aesthetic requirements. However, at present, the laparoscopic choledochojejunostomy still adopts the traditional method (ie, suturing), which is a very difficult operation, and complications such as anastomotic leakage, anastomotic stenosis, and foreign body residues in the anastomotic stoma occur after operation. The probability of disease is very high and often endangers the life of the patient. Even if doctors who have been trained in professional laparoscopic techniques for many years complete laparoscopic cholangioenterostomy with absorbable sutures, there is still a high incidence of complications. Therefore, the clinical application of laparoscopic suture cholangioenterostomy is greatly limited and difficult to popularize. Magnetic compression anastomosis technology is a kind of compression anastomosis technology. The anastomosis pressure of the tissue to be anastomotic is provided by magnetic force. After the anastomosis is formed, the anastomosis is tight and there is no foreign matter residue. Many experiments and applications of magnetic compression anastomosis at home and abroad have repeatedly confirmed that magnetic compression anastomosis has the advantages of rapidity, safety, no foreign matter residue at the anastomosis, narrow anastomosis and low incidence of anastomotic leakage compared with traditional anastomosis.

However, there is currently no laparoscopic biliary-enteric magnetic anastomosis instrument designed for the special procedure of laparoscopic biliary-enteric anastomosis, which prevents the technique of biliary-enteric magnetic anastomosis from being widely promoted and benefiting patients all over the world.

Contents of the invention

The purpose of the present invention is to provide a magnetic stapler suitable for laparoscopic biliary anastomosis, which combines the minimally invasive characteristics of laparoscopy with many advantages of magnetic compression anastomosis, which can achieve fast, safe and fast anastomosis Laparoscopic cholangioenterostomy with no foreign body residue in the mouth.

In order to achieve the above object, the technical solution adopted by the present invention is: a magnetic stapler suitable for laparoscopic biliary-enteric anastomosis, including a magnetic stapler body,

The magnetic stapler body includes a magnetic stapler and a stapler used in conjunction with the magnetic stapler; the magnetic stapler can be replaced; the stapler is reusable;

The magnetic stapling head includes a first magnetic ring body and a second magnetic ring body;

The first magnetic ring body includes a first magnetic ring, a first magnetic ring shielding shell and a central tube;

The first magnetic ring shielding shell is wrapped on the outer side wall and the distal section of the first magnetic ring; the central tube is arranged at the center of the first magnetic shielding shell, wherein the inner diameter of the central tube is larger than The outer diameter of the puncture rod of the stapler; the inner wall of the central tube is provided with a boss, which is fitted with the groove at the top of the puncture rod;

The second magnetic ring body includes a second magnetic ring and a second magnetic shielding shell;

The second magnetic ring shielding shell is wrapped on the outer wall and the proximal section of the second magnetic ring; the cross-sectional center of the second magnetic shielding shell has a through hole consistent with the inner diameter of the second magnetic ring, which is used for the inner diameter of the second magnetic ring. The central tube of the first magnetic ring body passes through;

It also includes a fixed shell, which includes a circular card slot and two clip feet arranged on the circular clip slot; the end of the circular clip slot far away from the clip feet is evenly provided with multiple a toothed groove; the toothed groove is used in conjunction with the second magnetic shielding shell; the convex groove on the clamping foot is used in conjunction with the axial groove at the head end of the stapler;

The fixed shell is sleeved on the outer wall of the second magnetic ring shielding shell, and slides with the second magnetic shielding shell, and the maximum mutual static friction force is greater than the maximum suction force when the first magnetic ring and the second magnetic ring are attached;

The stapler includes an operating handle, a stapler rod, a magnetic ring release device, a stapler rod steering adjustment device and a thread adjustment device;

The stapler rod includes a first rod body away from the operating handle and a second rod body close to the operating handle; a steering joint for controlling the turning of the first rod body is provided between the first rod body and the second rod body ; The head end of the first rod body is used in conjunction with the magnetic anastomosis head; the end of the second rod body is inserted into the operating handle;

The head end of the first rod body is provided with an axial groove, which is matched and connected with the fixed shell and is detachable; a lever-like structure is also arranged in the lumen of the head end of the first rod body; the lever-like structure is magnetized The forward movement of the ring release lever can excite and squeeze the fork-like structure at the end of the puncture rod, making it close;

The operating handle is provided with a magnetic ring release device, a stapler rod steering adjustment device and a thread adjustment device;

The magnetic ring release device is used to control the release of the magnetic anastomosis head;

The stapler rod steering adjustment device is used to control the rotation of the head end of the stapler rod of the stapler;

The screw adjusting device can control the reciprocating movement of the puncture rod.

A magnetic stapler suitable for laparoscopic biliary anastomosis as described above, wherein the magnetic ring release device includes a magnetic ring release lever, a magnetic ring release handle, and a magnetic ring release safety;

The magnetic ring release lever is a tubular structure, which is arranged in the lumen of the first rod body in the operating handle; its end is provided with a V-shaped groove, and the V-shaped groove interacts with the lever-like structure in the first rod body. Function: the end of the magnetic ring release rod extends out of the first rod body and contacts the second magnetic shielding shell, and the other end passes through the wire through the steering joint, the inner cavity of the second rod body, and the steering joint and the magnetic ring to release the insurance and the magnetic ring The release handle is associated; when the magnetic ring release lever moves forward, its slope can make the lever-like structure move around its fulcrum, press down a tuning fork-like foot of the piercing rod and make the tuning-fork-like structure of the piercing rod close; the tuning-fork-like structure of the piercing rod After the structure is folded, it can be separated from the central tube of the first magnetic shielding shell, and is used to push and release the attracted first magnetic ring, the second magnetic ring, the first magnetic shielding shell and the second magnetic shielding shell.

The magnetic ring release handle is connected with the magnetic ring release safety and the magnetic ring release handle through the steering knuckle, the cavity of the second rod body and the steering joint through the wire; after the magnetic ring release safety is opened, pressing the magnetic ring release handle can drive The magnetic ring release rod reciprocates in the lumen of the first rod body;

The magnetic ring release safety is a movable protrusion located on the outer shell of the operating handle, and has two states: locked and released; in the locked state, it can prevent the movement of the magnetic ring release handle, and in the released state, the magnetic ring release handle can be released. After being pressed, the magnetic ring release rod can be driven to reciprocate in the lumen of the first rod body.

A magnetic stapler suitable for laparoscopic biliary anastomosis as described above, wherein the stapler rod steering adjustment device includes a steering control button and a steering trigger;

Steering control button, which is located on the shell of the operating handle; runs through the two sides of the main body of the shell; has two states of locking and steering; in the locked state, the steering control button is in the middle position, at this time the steering trigger is locked, press the steering The trigger cannot trigger the steering joint movement to turn; press the steering control button to make it in the steering state, and the steering trigger is activated at this time, press the steering trigger to make the steering joint move, so that the first rod body turns to the direction indicated by the steering control button. direction.

The movement state of the steering trigger is controlled by the steering control button. When it is activated, squeezing it can trigger the movement of the steering joint, causing the first rod body to form an angle with the second rod body.

A magnetic stapler suitable for laparoscopic biliary anastomosis as described above, wherein the threaded adjustment device includes a threaded adjustment handle and a puncture rod;

The threaded adjustment handle is arranged at the proximal end of the operating handle, and is connected with the puncture rod in the lumen of the first rod body through the threaded rod located in the main body of the operating handle through a wire; turning the threaded adjusting handle can control the reciprocating movement of the puncture rod;

The puncture rod passes through the magnetic ring release rod, and its end extends out of the first rod body in a tuning-fork-like structure; the outer wall of the tuning-fork-like structure has an annular groove; the tuning-fork-like structure of the puncture rod can be connected to the center of the first magnetic shielding shell The tube is connected, and can be fixed by fitting the boss in the central tube and the groove of the tuning fork-like structure; the other end of the puncture rod is threaded through the steering knuckle, the second rod body, the steering knuckle, and the operating handle through the wire at the other end. The rod is connected, and the reciprocating movement of the puncture rod can be controlled by turning the threaded adjustment handle.

As mentioned above, a magnetic stapler suitable for laparoscopic biliary-enteric anastomosis, wherein the operating handle is made of medical hard plastic or light non-magnetic metal; there are different shapes according to human body mechanics,

The magnetic ring release handle is made of medical hard plastic or metal;

The threaded adjusting handle is made of hard medical plastic or metal;

The puncture rod is made of nonmagnetic hard metal.

Compared with the prior art, the beneficial effects produced by the present invention are mainly reflected in:

1. A magnetic stapler suitable for laparoscopic biliary-enteric anastomosis of the present invention can realize fast, safe and laparoscopic biliary-enteric anastomosis without foreign matter residue by combining laparoscopic instruments with magnetic compression anastomosis technology. Anastomosis, and the technical requirements for operating doctors are also reduced;

2. A magnetic stapler of the present invention suitable for laparoscopic cholangioenterostomy can accelerate postoperative recovery, reduce the risk of infection, and shorten the anastomosis cycle;

3. Laparoscopic technique has the characteristics of minimal invasiveness, clear field of view, and precision; while magnetic compression anastomosis technique has the advantages of simplicity, no foreign body residue at the anastomosis, and low incidence of complications such as anastomotic leakage.

Description of drawings

Fig. 1A is a structural schematic diagram of the magnetic anastomosis head of the present invention;

Fig. 1B is a schematic structural view of the second magnetic ring body of the present invention used in conjunction with the fixed housing;

Fig. 2 is a schematic structural view of the stapler of the present invention;

Fig. 3A is a side view of the magnetic stapling head installed on the operating handle of the present invention;

Fig. 3B is a top view of the operating handle of the present invention after the magnetic stapling head is installed;

4A is a schematic diagram of the open state of the puncture rod of the lever-like structure of the present invention;

Fig. 4B is a schematic diagram of the closed state of the puncture rod of the lever-like structure of the present invention;

Fig. 5 is a schematic diagram of the purse-string suture operation of the magnetic anastomosis head of the present invention (the first magnetic ring body has not yet been embedded in the bile duct);

Fig. 6 is a schematic diagram of the purse-string suture operation of the magnetic anastomosis head of the present invention (the first magnetic ring body has been embedded in the bile duct);

Fig. 7 is a schematic diagram of the biliary-enteric anastomosis operation of the present invention (after the stapler is connected to the second magnetic ring, the puncture rod is poked out through the cavity of the small intestine);

Fig. 8 is a schematic diagram of the biliary-enterostomy operation of the present invention (the puncture rod is connected to the central tube of the first magnetic shielding shell);

Fig. 9 is a schematic diagram of the operation of biliary-enteric anastomosis of the present invention (the magnetic anastomosis head is released after suction, the main body of the stapler is taken out, and the anastomosis process ends).

Explanation of reference signs:

1. The first magnetic ring 2. The second magnetic ring 3. The first magnetic shield

4. Second magnetic shielding shell 5. Central tube 6. Fixed shell

7. Operating handle 8. First rod body 9. Steering joint

10. Second lever body 11. Steering trigger 12. Magnetic ring release handle

13. Threaded adjustment handle 14. Magnetic ring release safety 15. Steering control button

16. Slope 17. Magnetic ring release lever 18. Piercing rod

19. Fulcrum 20. Lever-like structure 21. Bile duct

22. Intestinal tube 23. Circular card slot 24. Card feet

25. Toothed groove

detailed description

In order to facilitate the understanding of the purpose, technical solutions and effects of the present invention, the present invention will now be further described in detail in conjunction with examples.

As shown in Figure 1A, Figure 1B and Figure 2, a magnetic stapler suitable for laparoscopic biliary-enteric anastomosis of the present invention includes a magnetic stapler body, and the magnetic stapler body includes a magnetic stapler head and the A stapler used in conjunction with a magnetic stapling head; the magnetic stapling head can be replaced; the stapler can be used repeatedly.

As shown in Figure 1A and Figure 1B, the magnetic anastomosis head includes a first magnetic ring 1 body and a second magnetic ring 2 body;

The first magnetic ring 1 body includes the first magnetic ring 1, the first magnetic ring 1 shielding shell and the central tube 5; the first magnetic ring 1 shielding shell is wrapped on the outer wall of the first magnetic ring 1; The central tube 5 is arranged at the center of the first magnetic shielding shell 3, wherein the inner diameter of the central tube 5 is greater than the outer diameter of the puncture rod 18 of the stapler; the inner wall of the central tube 5 is provided with a boss , the boss fits into the groove at the top of the puncture rod 18;

The body of the second magnetic ring 2 includes a second magnetic ring 2 and a second magnetic shielding shell 4; the shielding shell of the second magnetic ring 2 covers the outer wall and the proximal section of the second magnetic ring 2; There is a through hole consistent with the inner diameter of the second magnetic ring 2 in the cross-sectional center of the two magnetic shielding shells 4, which is used for passing through the central tube 5 of the first magnetic ring 1 body; it also includes a fixed shell 6, the The fixed shell 6 includes a circular card slot 23 and two clip feet 24 located in the circular clip slot; the end of the circular clip slot 23 away from the clip feet 24 is evenly provided with a plurality of teeth along the circumferential direction. shaped groove 25; the toothed groove 25 is used in conjunction with the tuning fork structure inside the first rod body 8; the convex groove on the clamp foot 24 is used in conjunction with the axial groove of the first rod body 8; the fixed shell 6 Sleeved on the outer wall of the shielding case of the second magnetic ring 2, and sliding with the second magnetic shielding case 4, the maximum mutual static friction force is greater than the maximum suction force when the first magnetic ring 1 and the second magnetic ring 2 are bonded together;

As shown in Figure 2, the structural schematic view of the stapler of the present invention; the stapler includes an operating handle 7, a stapler rod, a magnetic ring release device, a stapler rod steering adjustment device and a thread adjustment device; the stapler rod includes A first rod body 8 away from the operating handle 7 and a second rod body 10 close to the operating handle 7; a steering wheel for controlling the steering of the first rod body 8 is provided between the first rod body 8 and the second rod body 10 joint 9; the head end of the first rod body 8 is used in conjunction with the magnetic stapling head; the end of the second rod body 10 is inserted into the operating handle 7; the head end of the first rod body 8 is provided with an axial The groove is matched with the fixed shell 6 and is detachable; a lever-like structure 20 is also provided in the lumen of the head end of the first rod body 8; the lever-like structure 20 can be excited by the forward movement of the magnetic ring release rod 17 And extrude the fork-shaped structure at the end of the puncture rod 18 to make it folded and closed; the operating handle 7 is provided with a magnetic ring release device, a stapler rod steering adjustment device and a thread adjustment device; the magnetic ring release device is used for Control the release of the magnetic stapling head; the stapler rod steering adjustment device is used to control the rotation of the head end of the stapler rod of the stapler; the thread adjustment device can control the reciprocating movement of the puncture rod 18 .

As shown in Figure 3A, Figure 3B, Figure 4A and Figure 4B, a magnetic stapler suitable for laparoscopic biliary anastomosis of the present invention, the magnetic ring release device includes a magnetic ring release lever 17, a magnetic ring release handle 12 and magnetic ring release insurance 14;

The magnetic ring release lever 17 is a tubular structure, which is arranged in the lumen of the first rod body 8 in the operating handle 7; Lever-like structure 20 interaction;

The end of the magnetic ring release lever 17 stretches out from the first rod body 8 to contact the second magnetic shield shell 4, and the other end is released through the steering knuckle 9, the lumen of the first rod body 8 and the steering knuckle 9 and the magnetic ring through the wire. Safety 14 is associated with magnetic ring release handle 12; when magnetic ring release lever 17 moves forward, its slope 16 can make lever-like structure 20 move around its fulcrum 19 and press down a tuning fork-like foot of puncture rod 18 and make puncture rod The tuning fork-like structure of 18 is folded; the tuning-fork-like structure of the puncture rod 18 can be separated from the central tube 5 of the first magnetic shield shell 3 after being folded, and is used to push and release the first magnetic ring 1 and the second magnetic ring 1 after the attraction. The ring 2, the first magnetic shield shell 3 and the second magnetic shield shell 4.

The magnetic ring release handle 12 is associated with the magnetic ring release safety 14 and the magnetic ring release handle 12 through the steering knuckle 9, the inner cavity of the second rod body 10 and the steering joint 9 through the wire; after the magnetic ring release safety 14 is opened, Pressing the magnetic ring release handle 12 can drive the magnetic ring release rod 17 to reciprocate in the lumen of the first rod body 8;

The magnetic ring release safety 14 is a movable protrusion located on the shell of the operating handle 7, and has two states of locking and releasing; in the locked state, the movement of the magnetic ring release handle 12 can be prevented, and in the released state, the magnetic ring is released. After being pressed, the handle 12 can drive the magnetic ring release rod 17 to reciprocate in the lumen of the first rod body 8 .

As shown in Figure 3A and Figure 3B, a magnetic stapler suitable for laparoscopic biliary-enteric anastomosis according to the present invention, the stapler rod steering adjustment device includes a steering control button 15 and a steering trigger 11;

Steering control button 15, which is located on the shell of operating handle 7; runs through the two sides of the shell main body; has two states: locked and turned; in the locked state, the steered control button 15 is in the center position, and now the steering trigger 11 is locked Dead, pressing the steering trigger 11 can not trigger the movement of the steering joint 9 to turn; pressing the steering control button 15 can make it in the steering state, at this time, the steering trigger 11 is in the activated state, and pressing the steering trigger 11 can make the steering joint 9 move, so that the first rod body 8 Turn to the direction indicated by the steering control button 15.

Steering trigger 11, its motion state is controlled by steering control button 15, when it is activated, squeezing can trigger the movement of steering joint 9, causing the first rod body 8 and the second rod body 10 to form an angle.

As shown in Figure 3A and Figure 3B, a magnetic stapler suitable for laparoscopic biliary anastomosis according to the present invention, the thread adjustment device includes a thread adjustment handle 13 and a puncture rod 18;

The threaded adjustment handle 13 is arranged on the proximal end of the operating handle 7, and is connected with the puncture rod 18 in the lumen of the first rod body 8 via the threaded rod located in the main body of the operating handle 7; turning the threaded adjusting handle 13 can control The puncture rod 18 reciprocates;

Puncture rod 18 passes through magnetic ring release rod 17, and its end stretches out the first bar body 8 in the shape of a tuning fork; the outer wall of the tuning fork structure has an annular groove; The central tube 5 of the shielding shell 3 is connected, and can be fixed by fitting the boss in the central tube 5 and the groove of the tuning fork-like structure; the other end of the piercing rod 18 is passed through the steering knuckle 9 and the second rod body 10. The steering knuckle 9 extends to the operating handle 7 and is connected with the threaded rod, and the reciprocating motion of the puncture rod 18 can be controlled by turning the threaded adjustment handle 13 .

As shown in Figure 3A, a magnetic stapler suitable for laparoscopic biliary-enteric anastomosis of the present invention, the operating handle 7 is made of medical hard plastic or light non-magnetic metal; it has different shape designs according to human body mechanics ,

The magnetic ring release handle 12 is made of medical hard plastic or metal, and has different sizes and outer tube designs;

The threaded adjusting handle 13 is made of hard medical plastic or metal, and has different appearance designs;

The piercing rod 18 is made of nonmagnetic hard metal.

As shown in Figure 4A, Figure 4B, Figure 5, Figure 6, Figure 7, Figure 8 and Figure 9, the working principle of the present invention is:

The first step (Fig. 5 and Fig. 6): suture the first magnetic ring 1 and the stump of the bile duct 21 to be anastomosed, so that the first magnetic ring 1 and the first magnetic shielding shell 3 except the central tube 5 Partially embedded in the cavity of the bile duct 21, only part of the end of the central tube 5 is exposed;

The second step (Fig. 7): connect and fix the fixed casing 6 of the second magnetic ring 2 with the end of the stapler rod of the operating handle 7; The intestinal wall of the anastomotic intestinal tube 22 is poked out;

The third step (Fig. 8): the puncture rod 18 is connected and fixed with the exposed central tube 5 of the first magnetic shield shell 3 exposed after the bile duct 21 is purse sutured and embedded; The ring 1 and the first magnetic shielding shell 3 move back and forth; when the stump of the bile duct 21 and the side wall of the stump of the intestinal tube 22 are firmly attached, press the magnetic ring release handle 12 to move the magnetic ring release lever 17 forward, triggering the lever-like structure 20 to squeeze The tuning fork-like structure of the puncture rod 18 makes it contract and disengage from the central tube 5; continue to press the magnetic ring release handle 12 to make the magnetic ring release rod 17 continue to move forward, contact the second magnetic shielding shell 4, and push the second magnetic shielding shell 4 to make It is detached from the fixed shell 6; that is, the first magnetic ring 1, the first magnetic shielding shell 3, the second magnetic ring 2, and the second magnetic shielding shell 4 are separated from the operating handle 7, and the matching is completed so far;

As shown in Figure 9, after the anastomosis is completed, the first magnetic ring 1, the first magnetic shielding shell 3, the second magnetic ring 2 (2), and the second magnetic shielding shell 4 are left at the anastomotic port to perform magnetic compression anastomosis, and the device The remaining components are brought out with the withdrawal of the operating handle 7; when the anastomosis is healed, the first magnetic ring 1, the first magnetic shielding shell 3, the second magnetic ring 2, and the second magnetic shielding shell 4 can fall off and be excreted with the peristalsis of the intestinal tract , to achieve anastomotic anastomosis without foreign matter.

A magnetic stapler suitable for laparoscopic biliary-enteric anastomosis of the present invention, a laparoscopic biliary-enteric magnetic anastomosis device is designed by combining magnetic compression anastomosis technology with laparoscopic technology, which can realize fast and reliable non-invasive Suture biliary anastomosis. The use of the device can reduce the difficulty of performing laparoscopic biliary-enteric anastomosis and increase the safety of the operation; at the same time, it can avoid complications such as anastomotic foreign body, anastomotic stenosis, anastomotic leakage, and anastomotic bleeding caused by traditional anastomosis methods. After the device achieves biliary-enteric magnetic anastomosis, the operating handle 7 can be taken out and sterilized and used repeatedly, which can reduce medical costs and save medical resources; at the same time, the magnetic ring can be excreted from the body without metal residues in the body, maximizing the benefits of the patient.

The present invention has been further described above in conjunction with the embodiments, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various modifications can be made without departing from the gist of the present invention. kind of change.

Claims (5)

1. it is applicable to a magnetic anastomat for Cholangio-jejunostomy under peritoneoscope, including magnetic anastomat body, it is characterised in that:

Described magnetic anastomat body include magnetic coincide head and with described magnetic coincide head with the use of anastomat；Described magnetic coincide head Replaceable use；Described anastomat is reusable；

The described magnetic head that coincide includes the first magnetic ring body and the second magnetic ring body；

Described first magnetic ring body includes the first magnet ring, the first magnet ring shielding case and central canal；

Described first magnet ring shielding case is coated on lateral wall and the distal sections of described first magnet ring；Described central canal is located at described The center of the first magnetic shield shell, wherein, the internal diameter of described central canal is more than the external diameter of the puncturing lever of anastomat；Described central canal Inwall is provided with boss, this boss and the groove tabling on puncturing lever top；

Described second magnetic ring body includes the second magnet ring and the second magnetic shield shell；

Described second magnet ring shielding case is coated on lateral wall and the proximal cross-section of the second magnet ring；The cross section of described second magnetic shield shell There is the through hole consistent with the internal diameter of the second magnet ring at center, passes for the central canal for described first magnetic ring body；

Also including fixing shell, described fixing shell includes circular draw-in groove and is located at two card bases of described circular draw-in groove；Described One end away from described card base of circular draw-in groove is circumferentially uniformly provided with multiple dentation groove；Described dentation groove and described second magnetic cup Cover shell with the use of；The axial groove of the head end of the tongue on described card base and anastomat with the use of；

Described fixing casing is located at the lateral wall of described second magnet ring shielding case, mutually slides, mutually with the second magnetic shield shell The maximum static friction force maximum suction when fitting more than the first magnet ring and the second magnet ring；

Described anastomat includes operating handle, anastomat bar, magnet ring discharges device, anastomat bar turns to adjusting means and screw thread is adjusted Regulating device；

Described anastomat bar includes first body of rod away from described operation handle and second body of rod near described operation handle；Institute State and be provided with between first body of rod and second body of rod for controlling the steering connections that described first body of rod turns to；Described first body of rod Head end and described magnetic coincide head with the use of；The end of described second body of rod inserts in described operation handle；

The head end of described first body of rod is provided with axial groove, is connected, detachably with described fixing shell coupling；Described first body of rod Lever spline structure it is additionally provided with in the tube chamber of head end；Described lever spline structure can be excited by the reach of magnet ring release lever and extrude puncturing lever The prong like of latter end, is allowed to draw Guan Bi in；

Be provided with magnet ring release device in described operation handle, anastomat bar turns to adjusting means and screw thread adjusting means；

Described magnet ring release device coincide the release of head for controlling magnetic；

Described anastomat bar turns to adjusting means for controlling the rotation of the head end of the anastomat bar of anastomat；

Described screw thread adjusting means can control the reciprocating motion of puncturing lever.

A kind of magnetic anastomat being applicable to Cholangio-jejunostomy under peritoneoscope the most according to claim 1, it is characterised in that:

Described magnet ring release device includes magnet ring release lever, magnet ring release lever and magnet ring release insurance；

Magnet ring release lever, for tubular structure, it is located in the tube chamber of first body of rod in described operation handle；Its end is provided with V Type groove, the lever spline structure in this V-type groove and first body of rod interacts；The end of described magnet ring release lever stretches out first The body of rod and the second magnetic shield shell contact, the other end by tinsel via steering connections, second body of rod tube chamber in and turn to Joint associates with magnet ring release insurance and magnet ring release lever；When magnet ring release lever moves forward, it domatic can make lever spline structure Press down the foot of a tuning fork-like of puncturing lever around its fulcrum activity and make the tuning fork-like structure of puncturing lever draw in；The sound of puncturing lever Prong like can make it depart from from the first magnetic shield shell central canal after drawing in, is used for the first magnetic after promoting and discharge adhesive Ring, the second magnet ring and the first magnetic shield shell and the second magnetic shield shell.

Magnet ring release lever, its by tinsel via steering connections, first body of rod tube chamber in and steering connections and magnet ring Release insurance and the association of magnet ring release lever；After magnet ring release insurance is opened, pressing magnet ring release lever can drive magnet ring Release lever moves back and forth in the tube chamber of first body of rod；

Magnet ring release insurance, for being positioned at the movable property projection on the shell of operation handle, has locked and release two states；Lock The activity of magnet ring release lever can be stoped during death situation state, during release conditions, make magnet ring release lever can drive magnetic after being pressed Ring release lever moves back and forth in the tube chamber of first body of rod.

A kind of magnetic anastomat being applicable to Cholangio-jejunostomy under peritoneoscope the most according to claim 1, it is characterised in that:

Described anastomat bar turns to adjusting means include course changing control button and turn to trigger；

Course changing control button, it is located on the shell of operation handle；Run through two sides of housing main body；Have locked and turn to two The state of kind；During locking state, course changing control button is in center position, now turns to trigger locked, and pressing turns to trigger not touch Send out steering connections motion to turn to；Pressing course changing control button can be at steering state, now turns to trigger to be in activation State, pressing turns to trigger that steering connections can be made to move, makes first body of rod go to the side indicated by described course changing control button To.

Turning to trigger, its kinestate is by course changing control button control, and during state of activation, extruding can trigger steering connections activity, Cause first body of rod and the second body of rod angulation.

A kind of magnetic anastomat being applicable to Cholangio-jejunostomy under peritoneoscope the most according to claim 1, it is characterised in that:

Described screw thread adjusting means includes threaded adjusting handle and puncturing lever；

Threaded adjusting handle, is arranged at the near-end of operation handle, by being positioned at the threaded rod of operation handle main body, via tinsel The intraluminal puncturing lever of line and first body of rod connects；Rotate threaded adjusting handle and can control puncturing lever reciprocating motion；

Puncturing lever, through magnet ring release lever, its end is that tuning fork-like structure stretches out first body of rod；The outside of described tuning fork-like structure Wall has annular groove；The tuning fork-like structure of puncturing lever can be connected with the central canal of the first magnetic shield shell, it is possible to by central canal Boss and the groove tabling of tuning fork-like structure and fix；The other end of puncturing lever by tinsel through steering connections, the Bipole body, steering connections are connected with threaded rod after stretching and operating handle, rotate threaded adjusting handle and can control the past of puncturing lever Multiple motion.

A kind of magnetic anastomat being applicable to Cholangio-jejunostomy under peritoneoscope the most according to claim 1, it is characterised in that:

Described operation handle is prepared by medical rigid plastics or lightweight not magnetic conductive metal；Different profile is had to set according to body mechanics Meter,

Described magnet ring release lever is prepared by medical rigid plastics or metal；

Described threaded adjusting handle is made up of hard medical plastic or metal；

Described puncturing lever is prepared by not magnetic conduction hard metal.