CN111151940A

CN111151940A - Intestinal canal welding device and intestinal canal welding method

Info

Publication number: CN111151940A
Application number: CN202010028828.3A
Authority: CN
Inventors: 刘克富; 朱才会; 印丽; 邱剑; 王亦凡; 项骁伟
Original assignee: Fudan University
Current assignee: Fudan University
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-05-15

Abstract

The invention relates to the technical field of surgical medicine, in particular to an intestinal canal welding device based on a high-frequency soft tissue welding technology, a welding head of the intestinal canal welding device, and an intestinal canal welding method based on the high-frequency soft tissue welding technology. The intestinal canal welding device provided by the invention comprises two welding heads which are respectively used for fixing the outer part of a section of the broken intestine. Each welding head comprises a ring electrode which is arranged at the tail end of the main body of the welding head and is used for matching with the ring electrode of the other welding head to press the two sections of everted cesarean. The ring electrode is also electrically connected with a high-frequency power supply and is used for providing high-frequency voltage for the anastomosis of the severed intestine. The invention can simplify the structure of the device, improve the hemostatic effect, avoid intestinal stenosis and avoid secondary injury to the patient caused by the incision on the side wall of the intestinal canal, thereby reducing the pain of the patient and accelerating the recovery of the patient.

Description

Intestinal canal welding device and intestinal canal welding method

Technical Field

The invention relates to the technical field of surgical medicine, in particular to an intestinal canal welding device based on a high-frequency soft tissue welding technology, a welding head of the intestinal canal welding device, and an intestinal canal welding method based on the high-frequency soft tissue welding technology.

Background

Surgery is the main treatment of gastrointestinal tumors, and intestinal anastomosis is an essential key step in surgery. Traditional open surgery typically employs a skin or silk suture for intestinal anastomosis. However, such conventional methods are prone to serious complications of intestinal anastomosis, such as anastomotic bleeding and anastomotic fistula, and even risk causing postoperative death of the patient.

With the development of laparoscopic techniques, the conventional anastomosis techniques have failed to meet the requirements of the modern surgery for intestinal anastomosis. In recent decades, medical instruments in the technical field of electrosurgery have been rapidly developed, and related theories of electrosurgery also provide new ideas and new methods for the development and progress of digestive tract staplers.

The high-frequency soft tissue welding technology is a novel wireless anastomosis technology which is proposed by Ukrainian Barton welding research institute in the 90 s of the 20 th century, and the temperature and the time of high-frequency current acting on soft tissue are accurately controlled mainly by sensing the electrical impedance of the tissue, so that the cutting, coagulation and welding effects on the soft tissue are realized. Compared with the traditional anastomosis, the high-frequency soft tissue welding technology has many advantages, including reduction of tissue bleeding, improvement of hemostasis efficiency, minimally invasive scarless, shortening of operation time, reduction of patient operation risk, and thus, the damage and necrosis of surrounding tissues can be reduced to the maximum extent.

However, the existing high-frequency soft tissue welding device has a complex structure and a large difficulty in mechanical design, and needs to be inserted into a cavity for intestinal canal anastomosis by making an incision on the side wall of the intestinal canal. This type of bowel anastomosis not only narrows the bowel lumen of the patient, but also causes secondary damage to the bowel lumen of the patient, thereby increasing the risk of surgery and adversely affecting patient recovery.

Therefore, in order to overcome the above-mentioned defects existing in the prior art, there is a need in the art for a safe and efficient intestinal anastomosis technique for simplifying the device structure, improving the hemostatic effect, avoiding intestinal stenosis, and avoiding secondary injury to the patient caused by the incision of the side wall of the intestinal tract, thereby reducing the pain of the patient and accelerating the recovery of the patient.

Disclosure of Invention

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

In order to overcome the defects in the prior art, the invention provides an intestinal canal welding device based on a high-frequency soft tissue welding technology, a welding head of the intestinal canal welding device, and an intestinal canal welding method based on the high-frequency soft tissue welding technology.

The welding head provided by the invention comprises a main body and a ring electrode. The body is used for fixing the exterior of a section of the intestine. The annular electrode is arranged at the tail end of the main body and is used for being matched with the annular electrode of the other welding head to compress the two sections of everted cesarean. The ring electrode is also electrically connected with a high-frequency power supply and is used for providing high-frequency voltage for the anastomosis of the severed intestine.

Preferably, in one embodiment of the present invention, the body may include two clamping pieces. The two clamping pieces are movably connected to form the cylindrical main body and are used for surrounding the sausage to fix the outside of the sausage.

Preferably, in one embodiment of the present invention, the ring electrode may include two sub-electrodes. The two sub-electrodes can be semi-annular and are respectively arranged at the tail ends of the clamping pieces, wherein the vertical surfaces of the two sub-electrodes are matched and are tightly attached along with the closing of the two clamping pieces to form the annular electrode.

Preferably, in an embodiment of the present invention, the clamping member may be made of an insulating material. The clamp may be provided with a wire. One end of the lead is electrically connected with the sub-electrode, and the other end of the lead is led out from the outer wall of the clamping piece.

Alternatively, in one embodiment of the invention, the two clamping members may be movably connected by a rotating member. The two clamping pieces can be rotated to be opened under the limitation of the rotating piece, or can be rotated to be closed to form the cylindrical main body.

Preferably, in one embodiment of the invention, one of the two clamping members may be provided with a locking catch and the other of the two clamping members may be provided with a locking socket. The catch and the lock housing may cooperate to close the two clamps tightly.

Alternatively, in one embodiment of the present invention, the rotating member may be an elastic rotating member. The two clamping pieces can be tightly closed under the elastic force of the elastic rotating piece to form the cylindrical main body.

Preferably, in one embodiment of the present invention, the elastic rotating member may include a clamp body. The clamp body is used for opening the two clamping pieces under the pinching force provided by a user.

Optionally, in one embodiment of the invention, both sides of one of the two clamping members may comprise two tongues and both sides of the other of the two clamping members may comprise two grooves. The tongue and the groove may cooperate to slidably connect the two clamps.

Preferably, in an embodiment of the present invention, the convex groove may be provided with a screw hole, and both groove walls of the concave groove may be respectively provided with a screw hole. The screw hole of the convex groove is opposite to the screw hole of the groove. The threaded hole may cooperate with a screw to tightly close the two clamping members.

Alternatively, in one embodiment of the invention, the welding surface of the ring electrode may be provided with a concave-convex shape, and matched with the welding surface of the other ring electrode to compress the two everted cesarean sections.

Optionally, in one embodiment of the invention, the weld head may be removably mounted to a weld shank by a threaded arrangement to facilitate replacement, cleaning and sterilization by a user.

Alternatively, in one embodiment of the present invention, the body may be cylindrical. The inner diameter of the body may be adapted to the outer diameter of the sausage to be welded to secure the exterior of the sausage.

Optionally, in an embodiment of the present invention, the welding head may further comprise a snap ring. The inner diameter of the snap ring may be adapted to the outer diameter of the body for securing the eversion portion of the intestine to the outer wall of the body.

According to another aspect of the present invention, there is also provided herein an intestinal tube welding device based on high frequency soft tissue welding technology.

The intestinal canal welding device provided by the invention comprises two welding heads which are respectively used for fixing the outer part of a section of the broken intestine. Each welding head comprises a ring electrode which is arranged at the tail end of the main body of the welding head and is used for matching with the ring electrode of the other welding head to press the two sections of everted cesarean. The ring electrode is also electrically connected with a high-frequency power supply and is used for providing high-frequency voltage for the anastomosis of the severed intestine. It will be appreciated by a person skilled in the art that the welding head may be any of the welding heads described above with corresponding technical effects.

Preferably, in an embodiment of the invention, the force with which the intestine is compressed may be positively correlated with the amplitude of the high frequency voltage supplied to the intestine. The amplitude of the high frequency voltage may depend on the size of the intestine and the intestinal tube thickness.

Optionally, in an embodiment of the present invention, each of the welding heads may be fixedly connected to a welding handle. The two welding handles can be rotatably connected through a hinge for transmitting the force applied to the ends of the two welding handles to the two welding heads to press the sausage.

Preferably, in an embodiment of the present invention, each of the welding handles may include a stopper rib. The spacing clip strip may comprise at least one catch for engaging a catch of another spacing clip strip to maintain a force compressing the severed intestine.

Preferably, in an embodiment of the present invention, the position of the catching groove on the stopper catch strip may depend on the hardness of the welding handle. The clamping grooves of the two limiting clamping strips can be mutually meshed so as to enable the two welding handles to deform. The deformation can generate a pressing force corresponding to the amplitude of the high-frequency voltage at the two welding heads via the hinge waist.

Optionally, in an embodiment of the present invention, the limiting clip strip may further include a virtual clip slot. The virtual clamping groove can be positioned on the inner side of the limiting clamping strip. The two limit clamping strips can be used for responding to the butt joint of the two virtual clamping grooves to release the occlusion.

Optionally, in one embodiment of the invention, the hinge waist may be located between a front end of the welding shank and a midpoint of the welding shank. The distance of the hinge waist to the front end may depend on the target compression force required to weld the sausage portion.

Optionally, in an embodiment of the present invention, each of the welding handles may further include a wire interface electrically connected to the ring electrode of the corresponding welding head to provide an external high frequency voltage.

Preferably, in one embodiment of the present invention, the welding shank may be a hollow structure. The hollow structure can be internally provided with a lead. The lead may electrically connect the lead interface and the ring electrode to transmit the high frequency voltage.

According to another aspect of the present invention, there is also provided herein a method of bowel welding based on high frequency soft tissue welding techniques.

The intestinal canal welding method provided by the invention comprises the following steps: fixing the outer part of a section of the sausage by two welding heads respectively; turning the fracture of the two sections of the fractured intestines outwards along the annular electrode corresponding to the welding head, wherein the annular electrode is arranged at the tail end of the main body of the welding head; compressing the two sections of the everted cecum by using the two ring electrodes; and providing high-frequency voltage to the anastomosis of the broken intestine by the two annular electrodes.

Preferably, in one embodiment of the present invention, the step of fixing the exterior of the open bowel may comprise: opening the two clamps of the welding head to place the sausage; and a main body closing the two holders to constitute the welding head in a cylindrical shape, the main body surrounding the sausage to fix an outer portion of the sausage.

Optionally, in an embodiment of the present invention, the step of compacting the severed bowel may further comprise: determining the amplitude of the high-frequency voltage according to the size of the broken intestine and the thickness of the intestinal canal; and providing a force to the ring electrode positively correlated to the magnitude to compress the severed bowel.

Optionally, in an embodiment of the present invention, the welding method may further include the steps of: the eversion part of the sausage is fixed on the outer wall of the welding head main body by a clamping ring.

Drawings

The above features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.

Fig. 1 shows a schematic structural diagram of an intestinal tube welding device provided according to an embodiment of the present invention.

FIG. 2A illustrates a back view of a weld head provided in accordance with one embodiment of the present invention.

FIG. 2B illustrates a front view of a weld head provided in accordance with one embodiment of the present invention.

Fig. 3 illustrates an assembly view of a lock case and a shackle provided according to one embodiment of the present invention.

Fig. 4 shows a schematic structural view of a welding head provided according to another embodiment of the present invention.

Fig. 5 shows a schematic structural view of a welding head provided according to another embodiment of the present invention.

Fig. 6A is a schematic structural view of a clip with a tongue and groove according to an embodiment of the present invention.

Fig. 6B shows a schematic diagram of a grooved clip provided in accordance with an embodiment of the present invention.

Fig. 7 shows a schematic structural diagram of a ring electrode provided according to an embodiment of the present invention.

Fig. 8 shows a schematic structural diagram of a snap ring provided according to an embodiment of the present invention.

Fig. 9 shows a schematic flow diagram of a method of intestinal tube welding provided in accordance with another aspect of the present invention.

Reference numerals

10. 20 welding heads;

11. 21, 50 main body;

111. 112, 51, 52 clamps;

12. 22 a ring electrode;

121. 122 sub-electrodes;

123 facade;

13 a rotating member;

141 locking and buckling;

142 a lock seat;

31 a spring member;

32 a locking ring;

40 a resilient rotating member;

41 a clamp body;

511. 512 convex grooves;

521. 522 a groove;

60. 70 welding the handle;

61. 71 refers to a ring hole;

62. 72 limiting clamping strips;

63. 73 card slots;

64. 74 virtual card slot;

65. 75 a wire interface;

80 a snap ring;

81. 82 semicircular rings;

83 a movable bolt;

84, buckling;

90, hinging the waist;

901-904 steps of the intestinal canal welding method.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in connection with the preferred embodiments, there is no intent to limit its features to those embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Additionally, the terms "upper," "lower," "left," "right," "top," "bottom," "horizontal," "vertical" and the like as used in the following description are to be understood as referring to the segment and the associated drawings in the illustrated orientation. The relative terms are used for convenience of description only and do not imply that the described apparatus should be constructed or operated in a particular orientation and therefore should not be construed as limiting the invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, regions, layers and/or sections, these elements, regions, layers and/or sections should not be limited by these terms, but rather are used to distinguish one element, region, layer and/or section from another element, region, layer and/or section. Thus, a first component, region, layer or section discussed below could be termed a second component, region, layer or section without departing from some embodiments of the present invention.

As described above, the conventional high-frequency soft tissue welding apparatus has a complicated structure and a high difficulty in mechanical design, and it is necessary to perform intestinal anastomosis by making an incision in the side wall of the intestinal tract to extend into the lumen. This type of bowel anastomosis not only narrows the bowel lumen of the patient, but also causes secondary damage to the bowel lumen of the patient, thereby increasing the risk of surgery and adversely affecting patient recovery.

Therefore, in order to overcome the above defects in the prior art, the invention provides an intestinal canal welding device based on a high-frequency soft tissue welding technology, a welding head of the intestinal canal welding device, and an intestinal canal welding method based on the high-frequency soft tissue welding technology, which are used for simplifying the device structure, improving the hemostasis effect, avoiding intestinal lumen stenosis, and avoiding secondary damage to a patient caused by a side wall incision of an intestinal canal, thereby reducing the pain of the patient and accelerating the recovery of the patient.

Referring to fig. 1, fig. 1 is a schematic structural diagram illustrating an intestine welding device according to an embodiment of the present invention.

As shown in fig. 1, the intestinal tube welding device provided by the present invention may include two welding heads 10 and 20. In some embodiments, the weld head 10 may include a body 11 and a ring electrode 12. The body 11 may be cylindrical for securing the exterior of a section of severed bowel. The ring electrode 12 may be disposed at the end of the body 11 and electrically connected to a high frequency power source for supplying a high frequency voltage. In some embodiments, the welding head 20 may include a body 21 and a ring electrode 22. The body 21 may be cylindrical for securing the exterior of another section of severed bowel. A ring electrode 22 may be provided at the distal end of the body 21 and electrically grounded to cooperate with the ring electrode 12 to provide a high frequency voltage to the anastomosis where the intestine is to be welded.

It will be appreciated by those skilled in the art that the above-described arrangement of electrically connecting the ring electrode 12 to a high frequency power source and electrically grounding the ring electrode 22 is only one example provided by the present invention, and is provided primarily for clearly illustrating the concepts of the present invention and to provide a specific arrangement for facilitating implementation by the public and not for limiting the scope of the invention. Alternatively, in other embodiments, the ring electrode 22 may be electrically connected to the high frequency power source and the ring electrode 12 may be electrically grounded to achieve the same effect.

In some embodiments, before the intestinal canal is welded, an operator can clamp the fracture 5-10cm away from the two sections of the broken intestines to prevent the matters such as feces and the like in the intestinal canal from continuously overflowing, and clean and disinfect the mucosa on the inner wall of the intestinal canal at the anastomosis position. It is understood that a distance of 5-10cm is not a limiting description. In other embodiments, any other suitable distance that does not interfere with the securing of the severed end by the welding heads 10, 20 may be used. The operator can then wrap the body 11 of the welding head 10 around the outside of the severed end of a section of intestine to secure the intestine and evert the severed end of the intestine along the ring electrode 12 until the anastomosis to be welded abuts the ring electrode 12. Similarly, the operator can wrap the body 21 of the welding head 20 around the outside of the severed end of another section of intestine to secure the intestine and evert the severed end of the intestine along the ring electrode 22 until the anastomosis to be welded abuts the ring electrode 22. The two welding heads 10, 20 can then be pressed against each other so that the two

ring electrodes

12, 22 cooperate with each other to press against the inner wall of the two everted sections of sausage. The two

ring electrodes

12, 22 may then be used in cooperation to apply a high frequency voltage to the anastomosis between the two sections of severed bowel to weld the inner walls of the two sections of severed bowel using high frequency soft tissue welding techniques.

The principle of welding soft tissue by using high-frequency soft tissue welding technology is that a special high-frequency voltage is applied to two ends of the soft tissue to break cell membranes of the soft tissue so as to release collagen and denature the released collagen. Meanwhile, the thermal effect of the high-frequency voltage accelerates the molecular thermal motion. The denatured collagen forms a coagulative adhesion at the anastomosis of the soft tissue segment to seal the soft tissue segment.

In some embodiments, the high frequency voltage may have a voltage magnitude of 30-300V. In some embodiments, the pulse width of the high frequency voltage may be 0.1 μ s to 100 μ s. In some embodiments, the duty cycle of the high frequency voltage may be 8: 11. In some embodiments, the frequency of the high frequency voltage may be 100-800 kHz. In some embodiments, the discharge time for intestinal tube welding using the high frequency voltage may be 1-30 s.

It will be appreciated by persons skilled in the art that the embodiments described above relate to an operator and are not intended to be limiting. In some embodiments, the operator may be a medical professional performing the welding of the bowel. In other embodiments, the operator may also be a robotic arm performing the corresponding operations during the intestinal welding process.

Referring to fig. 1 and 2A in combination, fig. 2A illustrates a back view of a welding head provided in accordance with an embodiment of the present invention.

As shown in FIG. 1, in one embodiment of the invention, the weld head 10 may include a body 11 and a ring electrode 12. The body 11 may be used to encircle the exterior of a section of severed bowel for fixation. A ring electrode 12 may be provided at the end of the body 11 for engaging a ring electrode 22 of another welding head 20 to compress the inner walls of the two everted segments. In some embodiments, the ring electrode 12 may be electrically connected to a high frequency power source (not shown) for providing a high frequency voltage to the anastomosis of the two sections of severed intestine.

As shown in fig. 2A, in some embodiments, the main body 11 may include two clamping

members

111 and 112. The two clamping

members

111 and 112 can be movably connected to form a cylindrical main body 11 for surrounding the intestine to fix the outside of the intestine. Accordingly, the ring electrode 12 may also include two

sub-electrodes

121 and 122. The sub-electrode 121 may be a semi-ring shape and is disposed at the end of the corresponding holder 111. The sub-electrode 122 may be a semi-ring shape and is disposed at the end of the corresponding clamping member 112. The structures of the vertical surfaces 123 of the two

sub-electrodes

121 and 122 can be matched with each other, and are tightly attached to each other with the two clamping

members

111 and 112 closed to form the ring-shaped electrode 12.

It is understood that the above semi-cyclic is a non-limiting description referring to a portion of a cyclic ring, and is not strictly limited to one half of a cyclic ring. In some embodiments, the sub-electrodes 121-122 may be adapted to the shape and size of the clamping members 111-112 are the same and are half of the ring shape. In some embodiments, sub-electrode 121 may be a large portion of a ring shape and sub-electrode 122 may be a small portion of a ring shape, accommodating that holder 111 is larger and holder 112 is smaller. In some embodiments, the sub-electrode 122 may be a large portion of a ring shape and the sub-electrode 121 may be a small portion of a ring shape, in response to the clamp 112 being larger and the clamp 111 being smaller.

In some embodiments, the clamping

members

111 and 112 may be made of an insulating material such as rubber, plastic, etc. to prevent electric shock to the patient and the operator. The inner walls of the clamping

members

111 and 112 may be provided with wires. One end of the wire can be electrically connected to the

sub-electrodes

121 and 122, and the other end can be led out from the outer wall of the clamping

member

111 and 112 to connect to the high-frequency power source. By arranging the lead on the inner wall of the clamping piece 111 and the inner wall of the clamping piece 112, the operator can be prevented from touching the lead by mistake in the intestinal canal welding process, so that medical accidents caused by the contact can be avoided. In some embodiments, the length of the clamping members 111-112 can be 3.0-5.0cm, and the thickness thereof can be 2.0-6.0 mm.

In some embodiments, the body 11 may be cylindrical and may have an inner diameter of 1.5-3.0 cm. In some embodiments, the body 11 may be provided with a threaded structure. The weld head 10 may be removably mounted to a weld shank by the threaded configuration. The operator can easily replace the welding head 10 of the body 11 with an adapted inner diameter according to the outer diameter of the sausage to be welded, thus better fixing the outside of the sausage. It is understood that the conformable inner diameter may refer to a dimension slightly smaller (e.g., 0.1-0.5cm smaller) than the outer diameter of the severed bowel. By selecting a body 11 having an inner diameter slightly smaller than the outer diameter of the intestine, an inward force can be applied to the intestine to secure the exterior of the intestine. In some embodiments, the operator can also easily remove, clean, and disinfect a used weld head 10 by the threaded configuration.

As shown in fig. 2A, in some embodiments, the clamping

members

111 and 112 can be movably connected by a rotating member 13. Specifically, the two clamping

members

111 and 112 can be rotated open under the restriction of the rotating member 13 for the operator to put in the intestine, or rotated closed to constitute the cylindrical body 11 for fixing the outside of the intestine.

In some embodiments, the rotating member 13 may be a hinge. The hinge may have a length consistent with the main body 11, thereby improving structural stability of the main body 11. The hinge may be made of stainless steel material. Specifically, the hinge may include a first hinge leaf, a second hinge leaf, and a hinge shaft. The first hinge plate may be fixed to the holder 111. The second hinge plate may be secured to the clamp 112. The first hinge sheet and the second hinge sheet are respectively fixedly connected with the hinge shaft and can rotate around the hinge shaft. In some embodiments, the operator can force outward to open the two clamping

members

111 and 112, i.e., increase the angle at which the two clamping

members

111 and 112 open until the body 11 is fully opened. Accordingly, the operator can also force the two clamping

members

111 and 112 inward to close, i.e. reduce the opening angle of the two clamping

members

111 and 112 until the main body 11 is completely closed.

Referring further to fig. 2B, fig. 2B illustrates a front view of a weld head provided in accordance with an embodiment of the present invention.

In some preferred embodiments, as shown in FIG. 2B, the clamping member 111 may be provided with a catch 141. The clamp 112 may be provided with a lock seat 142. The lock 141 can cooperate with the lock seat 142 to provide an inward force to the two clamping

members

111 and 112, so that the two clamping

members

111 and 112 are tightly closed to stably clamp and fix the exterior of a section of the intestine. In some embodiments, the latch 141 and the latch seat 142 can be disposed at the border of the two clamping

members

111 and 112 to provide a more stable clamping and fixing effect. In some embodiments, the latch 141 may be mounted at 1/2 of the clip member 111 and the latch seat 142 may be mounted at 1/2 of the clip member 112 to provide a more stable clip securing effect. In some embodiments, the clamping member 111 may be provided with a plurality of locking catches 141, and the clamping member 112 may be provided with a plurality of locking seats 142 to provide a more stable clamping and fixing effect.

Referring to fig. 3, fig. 3 is a schematic view illustrating an assembly of a lock case and a lock catch according to an embodiment of the present invention.

As shown in fig. 3, the lock catch 141 and the lock seat 142 provided in this embodiment can be respectively and fixedly mounted on the

corresponding clamping members

111 and 112 by screws. Specifically, the latch 141 may include a spring member 31 and a lock ring 32. Spring member 31 is coupled to locking ring 32 for providing a downward force to locking ring 32. When the lock catch 141 and the lock seat 142 are required to lock the two clamping

members

111 and 112 to form the cylindrical body 11, an upward force can be applied to the spring member 31 to lift the lock ring 32. The shackle 32 may then be sleeved into the lock housing 142 and the upward force removed. The locking ring 32 will snap over the locking seat 142 under the downward force provided by the spring member 31 to lock the two clamping

members

111 and 112. In a preferred embodiment, the ends of the lock housing 142 may be angled upward to provide a more stable securing effect.

It will be appreciated by those skilled in the art that the above-described clamping and fixing of the exterior of the severed intestine by the lock 141 and the lock holder 142 is only one example provided by the present invention, and is provided primarily for clearly illustrating the concept of the present invention and providing a specific solution for the convenience of the public, and is not intended to limit the scope of the present invention.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a welding head according to another embodiment of the invention.

In another embodiment of the present invention, as shown in fig. 4, the rotating member 13 may be an elastic rotating member 40. The two clamping

members

111 and 112 can be tightly closed by the elastic force of the elastic rotating member 40 to form the cylindrical main body 11. Specifically, the elastic rotary member 40 may be provided with a spring inside. One end of the spring is fixedly connected with the clamping piece 111, and the other end is fixedly connected with the clamping piece 112. The spring can provide an inward elastic force to the two clamping

members

111 and 112, so that the two clamping

members

111 and 112 are automatically closed tightly to clamp and fix the outside of a section of the intestine.

In some embodiments, the elastic rotating member 40 may further include a clamp body 41. The clamping bodies 41 are respectively connected to two ends of the spring, and are used for providing an outward force to the spring under a pinching force to open the two clamping

members

111 and 112. In some embodiments, the operator can provide a pinching force to the clamp body 41 to open the two clamping

members

111 and 112, i.e., to increase the opening angle of the two clamping

members

111 and 112. The greater the pinching force applied, the greater the angle at which the two clamping

members

111 and 112 open until the body 11 is fully opened. Accordingly, the operator can also remove the pinching force to close the two clamping

members

111 and 112, i.e. reduce the opening angle of the two clamping

members

111 and 112. In response to the pinching force being removed, the two

clamps

111 and 112 will automatically close under the inward spring force provided by the spring until the body 11 is fully closed.

By preferably providing the rotatable member 13 as the resilient rotatable member 40, the two clamping

members

111 and 112 can be automatically closed in response to the operator removing the pinching force, thereby improving the efficiency of clamping the exterior of the immobilized intestine. Further, by selecting a spring having a suitable elasticity and a material of the body 11 having a suitable flexibility, it is possible to further adjust the holding force of the body 11 to the outside of the intestine, thereby providing a more stable fixing effect.

It will be understood by those skilled in the art that the two clamping

members

111 and 112 rotatably connected by the rotating member 13 and the elastic rotating member 40 are only an embodiment provided by the present invention, and are mainly used for clearly illustrating the concept of the present invention and providing a specific solution for the public to implement, but not for limiting the protection scope of the present invention.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a welding head according to another embodiment of the invention.

In another embodiment of the invention, as shown in fig. 5, two holding members 51-52 are slidably connected to form a cylindrical body 50 for encircling a segment of the intestine to secure the exterior of the intestine. In some embodiments, the body 50 may be cylindrical with a diameter of 1.5-3.0 cm. The body 50 may have a length of 3.0-5.0cm and a thickness of 2.0-6.0 mm. In some embodiments, the clamp 51 may be a cylindrical 1/3, which may have a 1/3 circular ring-shaped sub-electrode at its end. Accordingly, the holder 52 may be a cylindrical 2/3, the end of which may be provided with a 2/3 circular sub-electrode. In some embodiments, the operator may push the clamp 51 to the left away from the clamp 52 to open the body 50. Accordingly, the operator may also push the clamp 51 to the right toward the clamp 52 to close the main body 50. When the clamp 51 is completely overlapped with the clamp 52, the main body 11 is completely closed. Meanwhile, the two sub-electrodes are matched and tightly attached to each other to form a complete annular electrode.

It will be appreciated by those skilled in the art that the above-described solution for opening and closing the main body 50 is only one example provided by the present invention, and is mainly used for clearly illustrating the concept of the present invention and providing a concrete solution for the convenience of the public, and is not used for limiting the scope of protection of the present invention. Alternatively, in other embodiments, the operator may push the clamp member 51 away from the clamp member 52 to the right to open the main body 50, or push the clamp member 51 toward the left to the clamp member 52 to close the main body 50. Alternatively, in other embodiments, the operator may push the clamp member 51 upward away from the clamp member 52 to open the main body 50, or push the clamp member 51 downward toward the clamp member 52 to close the main body 50.

In some embodiments, the clamping members 51-52 may be slidably coupled by a sliding structure of tongue and groove.

Referring further to fig. 6A-6B, fig. 6A is a schematic structural diagram of a clip with a tongue and groove according to an embodiment of the present invention. Fig. 6B shows a schematic diagram of a grooved clip provided in accordance with an embodiment of the present invention.

As shown in FIG. 6A, the two sides of the clamping member 51 may include two protruding

grooves

511 and 512, the height of the protruding portion is 0.5-1.5 cm. As shown in FIG. 6B, the two sides of the clamping member 52 may include two

grooves

521 and 522, the depth of the concave portion is 0.5-1.5cm, and the concave portion matches with the height of the

convex groove

511 and 512. The tongue 511 is engageable with the groove 521 and the tongue 521 is engageable with the groove 522 to slidably couple the two clamps 51-52 to form the cylindrical body 50.

In some preferred embodiments, a screw hole may be formed in the middle of each of the protruding

grooves

511 and 512. The middle parts of the two groove walls of each

groove

521 and 522 can also be respectively provided with a screw hole. The screw hole of the male groove 511 may be positioned opposite to two screw holes of the female groove 521 so as to cooperate with a screw for fixing one side of the two clamping members 51-52. Accordingly, the screw hole of the tongue 512 may be positioned opposite to the two screw holes of the groove 522, thereby cooperating with another screw to fix the other side of the two clamping members 51-52. Under the combined action of the sliding structure formed by the

convex grooves

511 and 512 and the

concave grooves

521 and 522 and the thread structure formed by the screw hole and the screw, the two clamping pieces 51-52 can be tightly closed to fix the outside of the colon.

In some embodiments of the invention, the

ring electrodes

12, 22 of the two weld heads 10, 20 may be made of copper or nichrome, which may be 1.0-3.0mm thick. In some embodiments, the width of the

ring electrodes

12, 22 may be 2.0-6.0mm, consistent with the thickness of the

body

11, 21. In some embodiments, the inner ring diameter of the

ring electrodes

12, 22 may be 1.5-3.0cm, consistent with the inner diameter of the

body

11, 21. In some embodiments, the

ring electrodes

12, 22 may be bonded to the ends of the

bodies

11, 21 by a suitable adhesive material. The adhesive material may be determined according to the specific materials of the

main bodies

11, 21 and the

ring electrodes

12, 22. In some embodiments, the weld faces of the

ring electrodes

12, 22 may both be planar so as to mate with each other to compress the two everted sections of the intestine.

Referring further to fig. 7, fig. 7 is a schematic structural diagram of a ring electrode according to an embodiment of the invention.

In a preferred embodiment, as shown in fig. 7, the bonding surfaces of the

ring electrodes

12, 22 may be provided in a concave-convex shape, wherein the bonding surface shape of the ring electrode 12 should match the bonding surface shape of the ring electrode 22. When the two welding heads 10, 20 are pressed against each other, the welding surface of the ring electrode 12 and the welding surface of the ring electrode 22 will abut against each other to press the two everted segments of the intestine together. In some embodiments, the concavo-convex welding surface comprises a wavy welding surface. By providing the welding surfaces of the

ring electrodes

12, 22 in a concave-convex shape, the welding area of the intestinal canal can be further increased in a limited ring electrode width, thereby improving the mechanical strength of the anastomosis.

In some preferred embodiments, the welding heads 10, 20 may also be used in conjunction with a snap ring 80 to better secure the severed bowel. Specifically, the inner diameter of the snap ring 80 may be adapted to the outer diameter of the

bodies

11, 21. After the operator everts the fracture of the severed intestine along the

ring electrodes

12, 22 until the anastomosis to be welded abuts against the

ring electrodes

12, 22, the operator further sleeves the snap ring 80 with a suitable inner diameter outside the everted part of the severed intestine, thereby further fixing the everted part of the severed intestine to the outer wall of the

main body

11, 21.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a snap ring according to an embodiment of the invention.

As shown in fig. 8, the snap ring 80 may be formed of two

semicircular rings

81, 82. The two

semi-circular rings

81 and 82 are movably connected by a movable bolt 83. The ends of the two

semicircular rings

81 and 82 can be provided with two mutually matched buckles 84, and the buckles 84 are structurally provided with grooves. In some embodiments, the operator can force the two

semicircular rings

81, 82 to engage the end catches 84. The two half rings 81, 82, which are engaged with each other, apply an inward force to the eversion part of the intestine, thereby fixing the eversion part of the intestine to the outer wall of the

main body

11, 21. In some embodiments, the operator can again force the two half-

rings

81, 82 into engagement to disengage the snap 84 at their ends.

With continued reference to fig. 1, in the sausage welding apparatus of the present invention, the welding head 10 may further be fixedly connected to a welding handle 60, and the welding head 20 may further be fixedly connected to a welding handle 70. The two

welding shanks

60, 70 may be pivotally connected by a hinge 90 for transmitting forces experienced at the ends of the two

welding shanks

60, 70 to the two welding heads 10, 20 for compressing the two segments of the intestine. In some embodiments, the center of the hinge 90 may be fixed by a screw to facilitate rotation of the weld shank 60 and the weld shank 70 about the hinge 90. In some preferred embodiments, the hinge waist 90 may be made of a non-conductive material, and a high strength insulator such as teflon may be used to ensure voltage isolation between the two

weld shanks

60, 70 to prevent a short circuit in the power supply.

In some embodiments, the operator may determine the electrical parameters of the high frequency voltage required to weld the severed bowel based on the tissue size, and bowel thickness of the severed bowel. The electrical parameters include, but are not limited to, amplitude, frequency, pulse width, duty cycle, and discharge time of the high frequency voltage. In some preferred embodiments, the amplitude of the high frequency voltage may be positively correlated to the tissue size, size and intestinal thickness of the section. Preferably, the force with which the two welding heads 10, 20 compress the intestine may be positively correlated with the magnitude of the high frequency voltage supplied by their

ring electrodes

12, 22 to the intestine.

As shown in FIG. 1, in some embodiments, the end of the welding shank 60 may be provided with a finger ring hole 61, and the end of the welding shank 70 may also be provided with a finger ring hole 71. The finger ring holes 61, 71 may be non-standard oval shapes suitable for finger gripping, and the hole diameter may be 1.5-3.0 cm. The operator can insert his thumb and forefinger into the two finger ring holes 61, 71 to press or separate the two weld heads 10, 20 at the other end of the

weld shanks

60, 70.

In some embodiments, the

weld shanks

60, 70 may be formed from a titanium alloy or other low density, high hardness, and metal stable metallic material, and may have a length of 8.0-15.0 cm. The hinge waist 90 may be located at the front of the

welding shanks

60, 70, i.e. the area between the front end where the

welding head

10, 20 is located and the midpoint of the

welding shank

60, 70, thereby providing a compressive force to the

welding head

10, 20 through the moment arm structure that is a multiple of the operator's grip. The specific distance of the hinge waist 90 from the front end of the

welding handle

60, 70 may be specifically designed according to the desired target compression force required to weld the severed bowel.

In some preferred embodiments, as shown in fig. 1, the rear portion of the welding shank 60, i.e., the region between the end where the finger ring hole 61 is located and the midpoint of the welding shank 60, may also be provided with a limit clip 62. The limit stop strip 62 may include at least one catch slot 63. Accordingly, the rear portion of the welding handle 70, i.e., the region between the end where the finger ring hole 71 is located and the midpoint of the welding handle 70, may also be provided with a limit clip 72. The positive stop strip 72 may also include at least one catch slot 73. The position-limiting clamping strip 62 and the position-limiting clamping strip 72 can be arranged oppositely, so that the clamping

grooves

63 and 73 of the position-limiting clamping strip and the position-limiting clamping strip are mutually meshed. In some embodiments, an operator may press the ends of the two welding handles 60, 70 through the finger ring holes 61, 71 to force the locking grooves 63 of the position limiter bar 62 into engagement with the locking grooves 73 of the position limiter bar 72. The snap-

fit detents

63, 73 secure to each other and provide a constant inward force to the ends of the

weld shanks

60, 70 to maintain the force with which the weld heads 10, 20 compress the severed bowel.

In a preferred embodiment, the location of the detent 63 on the retention clip 62 and the location of the detent 73 on the retention clip 72 may be designed based on the hardness of the

weld shanks

60, 70. Specifically, the

notches

63, 73 of the two positive stop tabs 62, 72 may engage each other to provide a constant inward force to the ends of the

welding shanks

60, 70 to deform the two

welding shanks

60, 70. This deformation can be caused by the arm structure of the hinge waist 90, which produces an inward pressing force at the two welding heads 10, 20. The designer can perform arm structure conversion on the target pressing force corresponding to the amplitude of the high-frequency voltage to obtain the corresponding target deformation force. Then, the designer can determine the position of the engaging groove 63 on the stopper rib 62 and the position of the engaging groove 73 on the stopper rib 72 by finding the corresponding target deformation amount based on the target deformation force and the hardness of the

welding shanks

60 and 70.

It will be appreciated by those skilled in the art that the above-described embodiment wherein each of the position-limiting straps 62, 72 includes only one engaging

groove

63, 73 is only one example provided by the present invention, and is provided primarily for clearly illustrating the concepts of the present invention and to provide a specific embodiment for facilitating the implementation by the public and not intended to limit the scope of the present invention. Optionally, in other embodiments, each of the retainer strips 62, 72 may also include a plurality of slots. Preferably, each card slot corresponds to the amplitude of a high-frequency voltage at the position corresponding to the limiting card strip.

In some embodiments, a dummy groove 63 may be further formed on the inner side of the position-limiting locking strip 62, i.e., the side connected to the welding handle 60. Correspondingly, the inner side of the position-limiting clamping strip 72, i.e. the side connected with the welding handle 70, may also be provided with a virtual clamping groove 73. In some embodiments, the operator may apply an inward force to the interengaging weld stems 60, 70 to further compress the two positive stop tabs 62, 72. In response to the

virtual slots

63, 73 of the two position-limiting strips 62, 72 being in abutment, the two position-limiting strips 62, 72 can be disengaged and freely opened. At this point, the compressive force provided by the weld heads 10, 20 to the severed bowel is removed.

As shown in fig. 1, in some embodiments, the weld shank 60 may also include a wire interface 65. The wire interface 65 can be electrically connected to a high frequency power source and electrically connected to the ring electrode 12 of the welding head 10 via a wire to provide an external high frequency voltage. Accordingly, the weld shank 70 may also include a wire interface 75. The lead interface 75 may be electrically grounded and electrically connected to the ring electrode 22 of the welding head 20 via a lead to provide an external high frequency voltage to the anastomosis site of the severed bowel to be welded in cooperation with the ring electrode 12. In some embodiments, a wire interface 65 may be provided between the spacing clip strip 62 and the finger ring aperture 63. The wire interface 75 may be disposed between the limit clip strip 72 and the finger ring hole 73. In some embodiments, the wire interfaces 65, 75 may be cylindrical interfaces made of copper, which may be 1.0-2.0cm in length.

In some preferred embodiments, the

weld shanks

60, 70 may be hollow structures. The lead electrically connected to the lead interface 65 may be electrically connected to the ring electrode 12 of the welding head 10 through the hollow structure of the welding shank 60 to supply an external high frequency voltage. The wire electrically connected to the wire interface 75 may be electrically grounded through the hollow structure of the welding handle 70 to cooperate with the ring electrode 12 to provide an external high frequency voltage to the anastomosis of the severed bowel to be welded. In some embodiments, two wires may be connected to the respective weld heads 10, 20 through a hollow structure inside the hinge waist 90. By providing the lead in the hollow structure of the welding handles 60, 70, the structure of the welding device can be simplified, preventing the operator from mistakenly touching the lead during the welding of the intestinal canal, thereby avoiding medical accidents caused thereby.

Referring to fig. 9, fig. 9 is a flow chart illustrating a sausage welding method according to another aspect of the present invention.

As shown in fig. 9, the intestinal tube welding method provided by the present invention may include the steps of:

901: fixing the outer part of a section of the sausage by two welding heads respectively;

902: turning the fracture of the two sections of the fractured intestines outwards along the annular electrode corresponding to the welding head, wherein the annular electrode is arranged at the tail end of the main body of the welding head;

903: two ring electrodes are used for pressing the two sections of the everted cecum; and

904: two ring electrodes are used to supply high frequency voltage to the anastomotic site of the severed intestine.

It is understood that the intestinal tube welding method provided by the invention can be implemented by relying on the intestinal tube welding device provided by any one of the above embodiments. In some non-limiting embodiments, the method may be performed by an operator as referred to in any of the embodiments above. The operator includes, but is not limited to, a medical worker who performs the intestinal canal welding, and a robot arm which performs a corresponding operation during the intestinal canal welding. Therefore, the intestinal canal welding method provided by the invention can include the technical characteristics corresponding to any one of the intestinal canal welding devices provided by the embodiments, and can obtain the corresponding technical effects.

In particular, in some non-limiting embodiments, the step of fixing the exterior of the intestine may further comprise the steps of opening two clamps of a welding head to place a section of the intestine, and closing the two clamps to form the body of the tubular welding head. The body may surround the severed bowel to secure the exterior of the severed bowel.

In some non-limiting embodiments, the step of compressing the bowel may further include the step of determining an amplitude of the high frequency voltage based on the size of the bowel and the thickness of the bowel tube, and the step of providing a force to the ring electrode positively correlated to the amplitude to compress the bowel.

In some non-limiting embodiments, the welding method may further include the step of fixing the everted portion of the sausage log to an outer wall of the body of the welding head with a snap ring.

While, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as would be understood by one skilled in the art.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intestinal canal welding device is characterized by comprising two welding heads which are respectively used for fixing the outside of a section of the intestinal canal, wherein,

each welding head comprises a ring electrode which is arranged at the tail end of the main body of the welding head and is used for matching with the ring electrode of the other welding head to press the two sections of the outwards turned-out cesarean and provide high-frequency voltage for the anastomosis position of the cesarean.

2. The intestinal tube welding device according to claim 1, wherein each of the welding heads further comprises two clamping members movably connected to form the cylindrical body for surrounding the intestine to fix the exterior of the intestine.

3. The intestinal tube welding device of claim 1, wherein the force compressing the severed bowel is positively correlated to the magnitude of the high frequency voltage provided to the severed bowel, the magnitude of the high frequency voltage being dependent upon the size of the severed bowel and the thickness of the intestinal tube.

4. The intestinal tube welding device according to claim 1, wherein each welding head is fixedly connected with a welding handle, and the two welding handles are rotatably connected through a hinge for transmitting the force applied to the ends of the two welding handles to the two welding heads to press the intestinal section.

5. The intestinal tube welding device according to claim 4, wherein each welding handle comprises a limiting clamping strip, and the limiting clamping strip comprises at least one clamping groove for engaging with the clamping groove of another limiting clamping strip to maintain the force for pressing the intestinal section.

6. The intestinal tube welding device according to claim 5, wherein the position of the locking groove at the position-limiting locking strip depends on the hardness of the welding handle, and the locking grooves of the two position-limiting locking strips are engaged with each other to deform the two welding handles, and the deformation generates a pressing force corresponding to the amplitude of the high-frequency voltage at the two welding heads through the hinge.

7. The intestinal tube welding device according to claim 5, wherein the limiting clamping strip further comprises a virtual clamping groove, the virtual clamping groove is positioned on the inner side of the limiting clamping strip, and the two limiting clamping strips are released from occlusion in response to the two virtual clamping grooves being butted.

8. The intestinal welding device of claim 4, wherein the hinge is located between a front end of the welding handle and a midpoint of the welding handle, the distance from the hinge to the front end being dependent on a target compressive force required to weld the severed bowel.

9. The intestinal tube welding device according to claim 4, wherein each welding handle further comprises a wire interface electrically connected to the ring electrode of the corresponding welding head for providing an external high frequency voltage.

10. The intestinal canal welding device according to claim 9, wherein the welding handle is a hollow structure, a lead is arranged inside the hollow structure, and the lead is electrically connected with the lead interface and the ring electrode to transmit the high-frequency voltage.