Small anastomat based on electromagnetic system

Abstract

The invention discloses a small anastomat based on an electromagnetic system. The small anastomat comprises an anastomat main body, an electromagnetic adjusting device, a fixed sleeve and a magnetic ball, the anastomat body comprises a bearing tube and a handle, the handle is fixedly installed at the lower end of the bearing tube, the fixed sleeve is fixedly installed at the front end of the bearing tube, and the electromagnetic adjusting device is installed in the rear end of the bearing tube; the magnetic ball is fixedly and detachably mounted in the fixed sleeve; through the interaction of the magnetic ball and the hard metal sleeve (the metal sleeve is electrified), the pancreatic duct (or bile duct) after broken end ligation can be smoothly sucked in, and then the thermal electrode and the cutting knife which are arranged in the fixed sleeve are used for cutting and anastomosing the intestinal wall and the pancreatic duct (or bile duct), so that the anastomosing effect is achieved; according to the anastomat, anastomosis can be carried out through mutual cooperation of the small magnetic ball and the hard metal sleeve, and after the small metal ball is attracted in a magnetic mode, corresponding tissue is cut off in a mechanical or electric heating cutting mode and then anastomosis is carried out.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a small stapler based on an electromagnetic system. Background Art

[0002] At present, some common surgical anastomosis, such as gastrointestinal anastomosis, enteroenterostomy, gastroesophageal anastomosis, etc., are completed by staplers. There are two main types of common staplers, namely end-to-end staplers and side-to-side staplers. These staplers use mechanical force to cut and anastomose tissues. They are more suitable for large anastomotic openings. To a certain extent, it is convenient for doctors to perform anastomosis surgery.

[0003] However, for small anastomoses, such as bile-intestinal and pancreatico-intestinal anastomoses, the diameter of the anastomosis is generally only a few millimeters. Such anastomoses are generally sutured directly by surgeons, which requires a high level of suture experience by surgeons. Otherwise, the incidence of complications such as anastomotic stenosis, leakage, and bleeding after suture is high. The current stapler is not suitable for bile-intestinal and pancreatico-intestinal anastomoses due to its size, and still has defects to a certain extent.

[0004] Therefore, a small stapler suitable for bile-enteric and pancreatic-enteric anastomosis is needed to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention designs a small stapler based on an electromagnetic system. The small stapler disclosed in the present invention is a small stapler based on an electromagnetic system (that is, under the action of magnetism generated by electricity). The stapler can be operated through the mutual cooperation of a small magnetic ball and a hard metal sleeve. After the small metal ball is attracted by magnetic force, the corresponding tissue is cut and anastomosed by mechanical or electrothermal cutting. Since it uses a non-completely mechanical cutting and anastomosis method, it uses electromagnetic attraction and thermal cutting and anastomosis, and can complete cutting and anastomosis on the basis of greatly reducing the volume, and is suitable for small diameter anastomosis.

[0006] In order to achieve the above technical effects, the present invention designs a small stapler based on an electromagnetic system, comprising: a stapler body, an electromagnetic adjustment component, a fixed sleeve, and a magnetic ball; the stapler body comprises a carrying tube and a handle, the handle is fixedly installed at the lower end of the carrying tube, the front end of the carrying tube is fixedly installed with the fixed sleeve, and the rear end is installed with the electromagnetic adjustment component; the magnetic ball is fixedly and detachably installed inside the fixed sleeve; The fixed sleeve is a hollow structure, a hot electrode is fixedly mounted on the inner side wall of the fixed sleeve, a hard metal sleeve is fixedly mounted on the hot electrode, a cutting knife is fixedly mounted on the thermal micromotor at the same time, the cutting knife extends to the inner side of the hard metal sleeve, a power source is fixedly mounted near the rear end of the inner side of the supporting tube, the hard metal sleeve and the hot electrode are powered by the power source to attract the magnetic ball, and the cutting knife on the hot electrode is used to perform thermal cutting and matching; Furthermore, the electromagnetic adjustment component includes: a rotating knob, a coil, and a conductive block; the rotating knob is movably mounted on the rear end of the supporting tube through a thread, a groove is provided at the front end of the rotating knob, the coil is sleeved and mounted inside the groove, the other end of the coil is fixedly mounted on the supporting tube, a conductive block is fixedly mounted inside the rear end of the rotating knob, and the coil is electrically connected to the hard metal sleeve at the front end; Furthermore, an electromagnetic start button is fixedly provided on the handle, and a protective cover is detachably installed on the outside of the electromagnetic start button; Further, the thermode can be replaced by a transmission assembly, which includes a micromotor, a support rod, a transmission rod, a ball head, and a fixed block; the micromotor is fixedly installed inside the support tube, the support rod is fixedly installed on the output shaft of the micromotor, a transmission rod is fixedly installed on the support rod, the transmission rod passes through a ball head sleeved on a fixed block fixedly arranged inside the support tube, a slider is fixed at the end of the transmission rod, the slider is slidably installed on an annular slide groove provided on the fixed sleeve, and a cutting knife is fixedly installed on the inner side of the slider; the micromotor is controlled to rotate forward or reversely to drive the transmission rod to rotate forward or reversely to control the cutting knife to perform annular cutting on the tissue; Furthermore, a start / stop button and an adjusting knob are fixedly provided on the upper end of the supporting tube, and the start / stop button and the adjusting knob are electrically connected to the micro motor.

[0007] The beneficial effects of the present invention are: The present invention designs a small stapler based on an electromagnetic system, comprising: a stapler body, an electromagnetic adjustment component, a fixed sleeve, and a magnetic ball; the stapler body comprises a carrying tube and a handle, the handle is fixedly installed at the lower end of the carrying tube, the front end of the carrying tube is fixedly installed with the fixed sleeve, and the rear end is installed with the electromagnetic adjustment component; the magnetic ball is fixedly and detachably installed inside the fixed sleeve; the pancreatic duct (or bile duct) after ligation can be smoothly sucked in through the interaction between the arranged magnetic ball and the hard metal sleeve (the metal sleeve is electrified), and then the intestinal wall and the pancreatic duct (or bile duct) are cut by the hot electrode and the cutting knife arranged inside the fixed sleeve, so as to achieve the effect of anastomosis and cutting; In addition, the stapler can be operated through the cooperation of a small magnetic ball and a hard metal sleeve. After the small metal ball is attracted by magnetic force, the corresponding tissue is excised and anastomosed by mechanical or electrothermal cutting. Since it uses a non-completely mechanical cutting and anastomosis method, but uses electromagnetic attraction and thermal cutting and anastomosis, it can complete the cutting and anastomosis on the basis of greatly reducing the volume, and is suitable for small diameter anastomosis; it can effectively replace the traditional surgical suturing method that requires high experience for anastomosis, and can effectively reduce the occurrence of complications such as stenosis, leakage, and bleeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for describing the embodiment are briefly introduced below.

[0009] Figure 1 It is a schematic diagram of the overall structure of a small stapler based on an electromagnetic system; Figure 2 is another overall structural schematic diagram of a small stapler based on an electromagnetic system; Figure 3 It is a side view of a small stapler based on an electromagnetic system; Figure 4 It is a cross-sectional schematic diagram of the thermode structure in Example 1 of a small stapler based on an electromagnetic system; Figure 5 It is a schematic diagram of the enlarged structure of the C portion of a small stapler based on an electromagnetic system; Figure 6 The diagram is a simulation diagram of the actual use of the structure of the embodiment 1 of the small stapler based on the electromagnetic system; Figure 7 It is a cross-sectional schematic diagram of the structure of Example 3 of a small stapler based on an electromagnetic system; Figure 8 It is a schematic diagram of the enlarged structure of the A portion of a small stapler based on an electromagnetic system; Fig. 9 It is a schematic diagram of the enlarged structure of the B portion of a small stapler based on an electromagnetic system; Fig.10 It is a schematic diagram of a simulation of the actual use of the structure of Embodiment 3 of a small stapler based on an electromagnetic system; Fig.11 The diagram is a structural diagram of another anastomosis method in Example 1 of a small stapler based on an electromagnetic system.

[0010] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1- stapler body, 11- start / stop button, 12- adjustment knob, 13- support tube, 131- power supply, 14- transmission assembly, 141- micro motor, 142- support rod, 143- transmission rod, 144- fixed block, 145- ball head, 15- handle, 151- protective cover, 1511- electromagnetic start button, 2- electromagnetic adjustment assembly, 21- rotating knob, 211- groove, 22- coil, 23- conductive block, 3- fixed sleeve, 31- hard metal sleeve, 32- slider, 321- cutting knife, 322- heating ring, 33- annular slide groove, 34- hot electrode, 4- magnetic ball, 5- intestinal wall, 6- pancreatic duct. DETAILED DESCRIPTION Example

[0011] The present invention discloses a small stapler based on an electromagnetic system, comprising: a stapler body 1, an electromagnetic adjustment component 2, a fixed sleeve 3, and a magnetic ball 4; the stapler body 1 comprises a supporting tube 13 and a handle 15, the handle 15 is fixedly installed at the lower end of the supporting tube 13, the front end of the supporting tube 13 is fixedly installed with the fixed sleeve 3, and the rear end is installed with the electromagnetic adjustment component 2; the magnetic ball 4 is fixedly and detachably installed inside the fixed sleeve 3; The fixed sleeve 3 is a hollow structure, a hot electrode 34 is fixedly mounted on the inner side wall of the fixed sleeve 3, a hard metal sleeve 31 is fixedly mounted on the hot electrode 34, a cutting knife 321 is fixedly mounted on the thermal micro motor 141, and the cutting knife 321 extends to the inner side of the hard metal sleeve 31, and a power supply 131 is fixedly mounted near the rear end of the inner side of the supporting tube 13, and the hard metal sleeve 31 and the hot electrode 34 are attracted to the magnetic ball 4 by the power supply 131, and the cutting knife 321 on the hot electrode 34 is used to cut the magnetic ball 4. The cutter 321 performs thermal cutting and anastomosis; the interaction between the magnetic ball 4 and the hard metal sleeve 31 (electricity is passed through the metal sleeve) allows the pancreatic duct (or bile duct) after the broken end is ligated to be smoothly sucked in, and then the intestinal wall and the pancreatic duct (or bile duct) are cut by the hot electrode 34 and the cutter 321 set inside the fixed sleeve 3 to achieve the effect of anastomosis; at the same time, the magnetic ball 4 is a solid metal ball, the material of which can be attracted by magnetic force, and the outer side of the magnetic ball 4 is provided with a high temperature resistant and insulating material. During the operation, the tissues in the non-cutting part can be protected from being damaged and involved by heat energy.

[0012] In addition, the stapler can be operated by the cooperation between the small magnetic ball 4 and the hard metal sleeve 31. After the small metal ball is attracted by magnetic force, the corresponding tissue is cut and anastomosed by mechanical or electrothermal cutting. Due to the volume, it uses a non-complete mechanical cutting and anastomosis method, and uses electromagnetic attraction and thermal cutting and anastomosis methods to complete the cutting and anastomosis on the basis of greatly reducing the volume, which is suitable for small diameter anastomosis; it can effectively replace the traditional surgical suturing method that requires high experience for suturing; Specifically, the cutting knife 321 is a ring-shaped conical structure, and a thermode 34 releases a large amount of heat in a short time, so that the tip of the cutting knife 321 can generate heat. The thermal cutting method can not only complete the cutting, but also effectively reduce bleeding; the cutting method can be replaced by laser cutting, but it may not be suitable for small cutting, but it can still be used as a conventional stapler.

[0013] In addition, in this embodiment, after cutting by the cutting knife 321, it is often necessary to perform anastomosis. In the above process, after cutting, the cutting port is further heated continuously to perform anastomosis; thereby achieving the function of anastomosis; although the above method can perform anastomosis, the anastomosis is performed after cutting. After the heat generated by the cutting knife 321, the blood in the anastomotic port may be relatively coagulated, thereby causing certain problems during anastomosis; therefore, in order to solve the above technical problems, a heating ring 322 (such as a heating ring 322) may be provided on the side of the cutting knife 321. Fig.11 As shown), after cutting with the cutting knife 321, the heating ring 322 is further used for anastomosis and adhesion. At the same time, the energy (heat) on the heating ring is small, and the anastomotic opening after cutting can be anastomosed, which can effectively solve the above technical problems. Example

[0014] In this embodiment, the voltage in the hard metal sleeve 31 can be adjusted by the electromagnetic adjustment component 2, so that it has a greater magnetic force and can better attract the metal ball, that is, the magnetic force can be strengthened; specifically, the electromagnetic adjustment component 2 includes: a rotating knob 21, a coil 22, and a conductive block 23; the rotating knob 21 is movably installed at the rear end of the supporting tube 13 through a thread, and a groove 211 is provided at the front end of the rotating knob 21. The coil 22 is installed inside the groove 211, and the other end of the coil 22 is fixedly installed on the supporting tube 13. The conductive block 23 is fixedly installed at the rear end of the rotating knob 21, and the coil 22 is electrically connected to the hard metal sleeve 31 at the front end; when in use, the rotating knob 21 is rotated forwardly to change the position of the conductive block 23 on the coil 22, thereby changing the resistance of the entire circuit, and thereby adjusting the magnitude of the magnetic force; its principle is similar to the sliding rheostat in the prior art, and belongs to the modified application of this principle; In addition, in the present embodiment, an electromagnetic start button 1511 is fixedly provided on the handle 15, and a protective cover 151 is detachably installed on the outside of the electromagnetic start button 1511; the power is turned on and off by the electromagnetic start button 1511, and the protective cover 151 can effectively prevent accidental pressing. When it is needed, the protective cover 151 can be uncovered. The installation method of the protective cover 151 can be a plug-in installation or a shaft rotation method. Example

[0015] In the present embodiment, the hot electrode 34 can be replaced by a transmission assembly 14, and mechanical cutting can be performed by means of the provided rotating assembly, that is, another method for cutting tissue is provided in the present embodiment, and the transmission assembly 14 specifically comprises a micro motor 141, a support rod 142, a transmission rod 143, a ball head 145, and a fixing block 144; the micro motor 141 is fixedly mounted inside the support tube 13, the support rod 142 is fixedly mounted on the output shaft of the micro motor 141, the transmission rod 143 is fixedly mounted on the support rod 142, and the transmission rod 143 passes through the ball head 145 sleeved on the fixing block 144 fixedly arranged inside the support tube 13; specifically, , the fixing block 144 is fixedly mounted on the supporting tube 13, the ball head 145 is sleeved and mounted on the fixing block 144, the ball head 145 passes through the transmission rod 143, a slider 32 is fixed at the end of the transmission rod 143, the slider 32 is slidably mounted on the annular groove 33 opened on the fixing sleeve, and a cutting knife 321 is fixedly mounted on the inner side of the slider 32; the transmission rod 143 is driven to rotate forward or reversely by controlling the micro motor 141 to control the cutting knife 321 to perform annular cutting on the tissue; the upper end of the supporting tube 13 is fixedly provided with a start-stop button 11 and an adjusting knob 12, and the start-stop button 11 and the adjusting knob 12 are electrically connected to the micro motor 141. The electrical connection described here is connected by wires (not shown in the wire diagram) so that they can communicate and work with each other. The electrical connection is a prior art and will not be described in detail here.

[0016] When in use, the electrode is started by the start / stop button 11 of the device. Driven by the electrode, the support rod 142 rotates accordingly, and the support rod 142 drives the transmission rod 143 to rotate. At the same time, since the transmission rod 143 is installed on the ball head 145, the end of the rotating rod will also rotate. The rotation of the transmission rod 143 drives the slider 32 to rotate along the slide groove, thereby driving the cutting knife 321 located on the slider 32 to cut the intestinal wall and the pancreatic duct (or bile duct); in this embodiment, the cutting knife 321 is different from that in Example 1. The cutting knife 321 in Example 1 is annular, and its main function is to perform annular cutting through heat and taper. However, the cutting knife 321 in this embodiment is a non-annular structure, which is an arc-shaped sheet structure. Cutting is performed by sliding and rotating the slider 32. The two are completely different, but the effects to be achieved are the same, both of which are cutting effects.

[0017] In addition, the present device is not only applicable to the above-mentioned bile-enteric anastomosis and pancreatico-enteric anastomosis, but can also be applied to the anastomosis of the ureter and the small intestine or bladder. Specifically, it can be applied to the anastomosis of smaller anastomotic openings, and the anastomotic operation is the same as in the above-mentioned embodiment.

[0018] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A small stapler based on an electromagnetic system, characterized in that: include: The stapler body, the electromagnetic adjustment component, the fixed sleeve, and the magnetic ball; the stapler body includes a supporting tube and a handle, the handle is fixedly installed at the lower end of the supporting tube, the front end of the supporting tube is fixedly installed with the fixed sleeve, and the rear end is installed with the electromagnetic adjustment component; the magnetic ball is fixedly and detachably installed inside the fixed sleeve; The fixed sleeve has a hollow structure, a thermode is fixedly mounted on the inner side wall of the fixed sleeve, a hard metal sleeve is fixedly mounted on the thermode, a cutting knife is fixedly mounted on the thermal micromotor at the same time, the cutting knife extends to the inner side of the hard metal sleeve, a power supply is fixedly mounted near the rear end inside the supporting tube, the hard metal sleeve and the thermode are powered by the power supply, and the magnetic ball is attracted by the hard metal sleeve and the thermode, while thermal cutting and matching are performed by the cutting knife on the thermode.

2. According to claim 1, a small stapler based on an electromagnetic system, characterized in that: The electromagnetic adjustment component includes: a rotating knob, a coil, and a conductive block; the rotating knob is movably installed on the rear end of the supporting tube through a thread, a groove is opened at the front end of the rotating knob, the coil is installed inside the groove, the other end of the coil is fixedly installed on the supporting tube, a conductive block is fixedly installed at the rear end of the rotating knob, and the coil is electrically connected to the hard metal sleeve at the front end.

3. According to claim 1, a small stapler based on an electromagnetic system, characterized in that: An electromagnetic start button is fixedly arranged on the handle, and a protective cover is detachably installed on the outside of the electromagnetic start button.

4. A small stapler based on an electromagnetic system as claimed in any one of claims 1 to 3, characterized in that: The thermode is replaced by a transmission assembly, and the thermode can be replaced by a transmission assembly, and the transmission assembly includes a micromotor, a support rod, a transmission rod, a ball head, and a fixed block; the micromotor is fixedly installed inside the carrier tube, the support rod is fixedly installed on the output shaft of the micromotor, and the transmission rod is fixedly installed on the support rod, the transmission rod passes through the ball head sleeved on the fixed block fixedly arranged inside the carrier tube, and a slider is fixed at the end of the transmission rod, and the slider is slidably installed on an annular groove opened on the fixed sleeve, and a cutting knife is fixedly installed on the inner side of the slider; the micromotor is controlled to rotate forward or reversely to drive the transmission rod to rotate forward or reversely to control the cutting knife to perform annular cutting on the tissue.

5. A small stapler based on an electromagnetic system according to claim 4, characterized in that: A start / stop button and an adjusting knob are fixedly arranged on the upper end of the supporting tube, and the start / stop button and the adjusting knob are electrically connected to the micro motor.

6. A small stapler based on an electromagnetic system according to any one of claims 1 to 3, characterized in that: The thermode is replaced by a heating ring, which is arranged on one side of the cutting knife. The heating ring is used for heating and matching after the cutting knife cuts.

Images