Novel use method of contrast agent in laparoscope and marking device

Abstract

The invention provides a novel use method of a contrast agent in a laparoscope and a marking device, and belongs to the technical field of medical instruments. Comprising an execution device and a marking gun handle, a conical sleeve is fixedly installed at the front end of the marking gun handle, a gun barrel is fixedly installed at the front end of the conical sleeve, the gun barrel is composed of two detachable casing pipes, and the execution device is located in the marking gun handle, the conical sleeve and the gun barrel. The marking assembly is used for regulating and controlling the positions of the needle head and the spray head, so that the needle head and the spray head can adapt to the position of diseased tissue in real time, meanwhile, the injection assembly and the control panel are used for controlling single injection of medicine and spraying of medicine powder, and the reciprocating assembly and the control panel are used for continuously marking the diseased tissue; the problems that an existing tissue marking mode affects the positioning and operation effect, and meanwhile the effect of the existing tissue marking mode is single are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a new method for using a contrast agent in a laparoscope and a marking device. Background Art

[0002] Currently, endoscopic resection can be used for early digestive tract tumors, such as ESD, EMR, etc. In the process of endoscopic resection of digestive tract tumors, the marking and positioning technology of tumor position has gradually matured, such as Olympus disposable endoscopic injection needles NM-400U / L and NM-200U / L.

[0003] At present, when performing laparoscopic resection surgery for rectal cancer, sigmoid colon cancer, descending colon cancer, transverse colon cancer, small intestine cancer, and gastric cancer, the first step is often to mark the resection boundary. At present, commonly used marking methods include homelock clip marking, electric hook burn mark marking, and other methods. However, these methods are unstable. Among them, the clip is easy to fall off during the separation of tissues, and once the clip is clamped, it cannot be removed, which will cause irreversible damage to the clamped tissue. The burn marks left by the electric hook are often stained by bleeding during the separation of tissues, making them unclear. The fuzzy positioning of the resection boundary will lead to inaccurate resection of the intestinal tract and its mesentery, thus affecting the surgical effect.

[0004] At the same time, patients with portal cirrhosis accompanied by portal vein thrombosis and cavernous changes currently need to undergo TIPS. Traditional surgery cannot be completed through the inferior vena cava route. At this time, laparotomy is required to separate the branches of the superior mesenteric vein, and then use an injection needle to create contrast agents in the blood vessels to guide the completion of the TIPS surgery. Laparotomy is very traumatic, and changing to laparoscopy will cause less harm to patients. However, contrast agents are now injected into blood vessels, and cannot be used directly to mark the resection margins in laparoscopic surgery. The purpose of marking cannot be achieved by directly using existing contrast agent usage methods. Secondly, there are currently two types of surgical wound bleeding: clear vascular bleeding and extensive oozing. Vascular bleeding can be coagulated with energy devices. When there is extensive oozing, it is generally necessary to inject hemostatic drugs into the surgical wound, spray hemostatic powder, etc., but there is currently a lack of such equipment.

[0005] Therefore, the present application provides a new method for using contrast agents in laparoscopy and a marking device to meet the needs. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a new method for using contrast agents in laparoscopy and a marking device, by utilizing a marking component to adjust the position of a needle and a nozzle so that they can adapt to the position of diseased tissue in real time, while utilizing an injection component and a control panel to control a single injection of a drug and the spraying of a powder, and utilizing a reciprocating component and a control panel to continuously mark the diseased tissue, so as to solve the problem that existing tissue marking methods affect positioning and surgical effects, and that the existing tissue marking methods have a single effect.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A new method for using contrast medium in laparoscopy comprises injecting a plurality of dot marks around the position of the mesentery to be removed using the contrast medium under laparoscopy, wherein the plurality of dot marks can form a unique indicating line.

[0009] A marking device for contrast agent in a laparoscope comprises an execution device and a marking gun handle, wherein a conical sleeve is fixedly mounted at the front end of the marking gun handle, a gun rod is fixedly mounted at the front end of the conical sleeve, and the gun rod is composed of two sections of detachable sleeves, and the execution device is located inside the marking gun handle, the conical sleeve and the gun rod;

[0010] The actuator comprises a reciprocating assembly, which is installed inside the marking gun handle and the conical sleeve, an injection assembly is installed at the front end of the reciprocating assembly, and the injection assembly is located in the rear end sleeve of the gun rod, and a marking assembly is installed at the front end of the injection assembly, and the marking assembly is located in the front end sleeve of the gun rod;

[0011] The marking component includes a base cylinder seat, the top of the base cylinder seat has an inclination setting, the bottom inner wall of the base cylinder seat is provided with a meshing area, the top inner wall of the base cylinder seat is provided with an oblique groove, the oblique groove has the same inclination as the top of the base cylinder seat, the right inner wall of the meshing area is rotatably connected with a gear, the inner wall of the oblique groove is rotatably connected with a rotating cylinder, the bottom of the rotating cylinder is fixedly installed with an inner gear ring, the inner gear ring is meshed with the gear, the inner gear ring and the gear both have an inclination setting, and the inclination is the same as the inclination of the oblique groove, the bottom of the base cylinder seat is fixedly installed with a motor 1, and the output shaft of the motor 1 is fixedly connected to the gear.

[0012] Optionally, a bottom cover is sleeved on the outer wall of the bottom of the base cylinder seat, an inclined rotating cylinder is provided on the top of the base cylinder seat, a receiving groove is opened at the bottom of the inclined rotating cylinder, the bottom of the inclined rotating cylinder is rotatably connected to the inner wall of the top of the base cylinder seat, and the top of the rotating cylinder is fixedly connected to the inner wall of the receiving groove, a cross beam is fixedly installed on the inner wall of the middle part of the inclined rotating cylinder, sliding grooves are opened on both side walls of the top of the beam, an assembly groove is opened on the top of the cross beam, a screw is rotatably connected to the inner wall of the assembly groove, a sliding seat is meshed on the screw, and the sliding seat is slidably connected to the two groups of sliding grooves, a motor 2 is fixedly installed at the end wall of the assembly groove, and the output shaft of the motor 2 is fixedly connected to the end wall of the screw, a blood-isolating cloth is installed on the top surface of the assembly groove, retaining rings are fixedly installed on both side walls of the slide seat, and a top cover is sleeved on the outer wall of the top of the inclined rotating cylinder.

[0013] Optionally, the inner walls of the two groups of the clamping rings are clamped with syringes, the tops of the two groups of the syringes are respectively fixedly installed with needles and nozzles, the ends of the two groups of the syringes are respectively fixedly installed with injection hoses, and the two groups of injection hoses are both located in the hollow area in the middle of the base cylinder seat, and barrel-type piston mechanisms are fixedly installed on both sides of the inner wall of the sleeve at the front end of the gun barrel, and the ends of the two groups of injection hoses are respectively fixedly connected to the output ends of the two groups of barrel-type piston mechanisms.

[0014] Optionally, the injection assembly includes an outer sleeve, which is slidably connected to the inner wall of the sleeve at the rear end of the gun barrel, and the inner walls on both sides of the outer sleeve are provided with slideways. The inner wall of the outer sleeve is rotatably connected with a stud, and two groups of the inner walls of the slideways are slidably connected to the same internally threaded sleeve, and the internally threaded sleeve is meshed with the stud, and the end wall of the internally threaded sleeve is fixedly installed with a connecting tube, which penetrates the end wall of the outer sleeve, and part of the stud is located inside the connecting tube, and a push plate is fixedly installed on the outer end wall of the connecting tube, and the push plate is sealingly and slidably connected to the inner wall of the gun barrel, connecting rod 1 is inserted on both sides of the push plate end wall, and the other end walls of the two groups of connecting rod 1 are fixedly connected to the bottom cover, and a motor 3 is fixedly installed on the outer end wall of the outer sleeve, and the output shaft of the motor 3 is fixedly connected to the end wall of the stud.

[0015] Optionally, the reciprocating assembly includes a positioning cylinder, which is fixedly connected to the inner wall of the tapered sleeve, and the inner wall of the positioning cylinder is slidably connected with an internal slide cylinder, and a linkage rod is fixedly installed on the end wall of the internal slide cylinder, and the linkage rod passes through the end wall of the positioning cylinder, and the other end wall of the linkage rod is fixedly connected to the outer wall of the outer sleeve, the inner wall of the marking gun handle is rotatably connected to a crank shaft, a connecting rod 2 is sleeved on the middle part of the crank shaft, and the other end of the connecting rod 2 is rotatably connected to the inner wall of the internal slide cylinder, a motor is fixedly installed on the outer wall of the marking gun handle, and the motor output shaft is fixedly connected to the end wall of the crank shaft.

[0016] Optionally, ventilation grooves are provided on the top and bottom inner walls of the gun barrel end, an air injection tube is fixedly installed on the output end of the cylinder piston mechanism end, and the other ends of the two groups of air injection tubes are respectively sealed and connected with the two groups of ventilation grooves, and a micro air pump is fixedly installed on the top and bottom walls of the positioning cylinder, and an air guide tube is fixedly installed on the output end of the micro air pump, and the two groups of air guide tubes are respectively sealed and connected with the two groups of ventilation grooves.

[0017] Optionally, a control panel is installed on the side wall of the marking gun handle, and the control panel is electrically connected to motor one, motor two, motor three and the motor. Trigger one and trigger two are movably connected to the bottom of the marking gun handle, and trigger one and trigger two are electrically connected to the control panel.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above scheme, when a single drug injection is performed on the diseased tissue, after adjusting the position of the syringe and the needle using the control panel, the motor three is driven by pressing the trigger one, so that the stud and the internal threaded sleeve are engaged, thereby driving the push plate to slide in the gun barrel, and through the guiding action of the connecting rod one, the connecting rod one pushes the bottom cover forward, so that the needle is inserted into the diseased tissue. Thereafter, the micro air pump is driven by the control panel to inject gas into the cylinder piston mechanism, thereby pushing the piston in the cylinder piston mechanism and injecting the drug at the front end of the piston into the diseased tissue. Similarly, the above method can be used to inject hemostatic drugs and spray hemostatic powder into the surgical wound when extensive bleeding occurs during surgery.

[0020] When continuously marking the diseased tissue, the control panel is adjusted in real time according to each injection position of the tissue to be marked, so that the needle can be smoothly inserted into the marked position. At the same time, the motor is driven by pressing the second trigger, so that the crank shaft drives the second connecting rod to rotate, and drives the linkage rod to reciprocate, so that the linkage rod drives the outer sleeve to reciprocate, thereby driving the syringe and the needle to reciprocate. At this time, the control panel drives the micro air pump to inject the dye into the tissue at a constant speed, so as to clearly mark the resection boundary, ensure the surgical effect, and reduce secondary damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 A new method for using contrast agents in laparoscopy and a schematic diagram of the three-dimensional structure of a marking device;

[0023] Figure 2A new method for using contrast media in laparoscopy and a side view of the marking device;

[0024] Figure 3 A partial cross-sectional view of a new method for using contrast media in laparoscopy and a marking device;

[0025] Figure 4 It is a schematic diagram of the structure of the reciprocating component;

[0026] Figure 5 is a schematic diagram of the structure of the marked component;

[0027] Figure 6 A split diagram of the labeled components;

[0028] Figure 7 The location diagram of the receiving slot is as follows:

[0029] Figure 8 A plan view of the marked components;

[0030] Fig. 9 It is a schematic diagram of the installation of the oblique rotating cylinder and the injection cylinder;

[0031] Fig.10 The figure is a schematic diagram of the installation of various components on the inclined drum;

[0032] Fig.11 This is the assembly drawing of the top cover;

[0033] Fig.12 This is the assembly diagram of the needle and the nozzle;

[0034] Fig.13 It is a structural schematic diagram of the base cylinder seat;

[0035] Fig.14 is a cross-sectional view of the base cylinder seat;

[0036] Fig.15 The figure is a schematic diagram of the installation of the drum and the inner gear ring;

[0037] Fig.16 It is the plan view of the base cylinder seat;

[0038] Fig.17 The schematic diagram of the execution device is as follows:

[0039] Fig.18 for Fig.17 The enlarged view of point A in the middle;

[0040] Fig.19 for Fig.17 The enlarged view of point B in the middle;

[0041] Fig. 20 A schematic diagram of the structure of the injection component.

[0042] Reference numerals:

[0043] Actuator 100, marking assembly 110, base cylinder seat 111, meshing area 112, oblique groove 113, gear 114, rotating cylinder 115, inner gear ring 116, motor 1 117, bottom cover 120, oblique rotating cylinder 130, receiving groove 131, slide groove 132, assembly groove 133, screw 134, slide seat 135, snap ring 136, motor 2 137, top cover 138, crossbeam 139, injection cylinder 140, injection hose 141, needle 142, nozzle 143, cylinder piston mechanism 144, gas injection pipe 145, Micro air pump 146, air guide tube 147, injection assembly 150, outer sleeve 151, slide 152, stud 153, internal threaded sleeve 154, connecting tube 155, push plate 156, connecting rod one 157, motor three 158, reciprocating assembly 160, positioning cylinder 161, built-in slide cylinder 162, linkage rod 163, crank shaft 164, connecting rod two 165, motor 166, marking gun handle 200, tapered sleeve 210, gun barrel 220, ventilation groove 221, control panel 230, trigger one 231, trigger two 232.

[0044] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0045] The following is a detailed description of a new method for using a contrast agent in a laparoscope and a marking device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0046] like Figures 1 to 20 As shown, an embodiment of the present invention provides a new method for using contrast agent in laparoscopy, including injecting a plurality of dot marks around the position of the mesentery to be resected using contrast agent under laparoscopy, wherein the plurality of dot marks can form a unique indicator line.

[0047] A marking device for contrast agent in laparoscope, comprising an execution device 100 and a marking gun handle 200, wherein a conical sleeve 210 is fixedly installed at the front end of the marking gun handle 200, a gun rod 220 is fixedly installed at the front end of the conical sleeve 210, and the gun rod 220 is composed of two sections of detachable sleeves, and the execution device 100 is located inside the marking gun handle 200, the conical sleeve 210 and the gun rod 220;

[0048] The actuator 100 includes a reciprocating assembly 160, which is installed inside the marking gun handle 200 and the tapered sleeve 210. The front end of the reciprocating assembly 160 is installed with an injection assembly 150, which is located in the rear end sleeve of the gun rod 220. The front end of the injection assembly 150 is installed with a marking assembly 110, which is located in the front end sleeve of the gun rod 220.

[0049] The marking component 110 includes a base cylinder seat 111, the top of the base cylinder seat 111 has an inclination setting, the bottom inner wall of the base cylinder seat 111 is provided with a meshing area 112, the top inner wall of the base cylinder seat 111 is provided with an oblique groove 113, the oblique groove 113 has the same inclination as the top of the base cylinder seat 111, the right inner wall of the meshing area 112 is rotatably connected with a gear 114, the inner wall of the oblique groove 113 is rotatably connected with a rotating cylinder 115, the bottom of the rotating cylinder 115 is fixedly installed with an inner gear ring 116, the inner gear ring 116 is meshed with the gear 114, the inner gear ring 116 and the gear 114 are both set with an inclination, and the inclination is the same as the inclination of the oblique groove 113, a motor 117 is fixedly installed at the bottom of the base cylinder seat 111, and the output shaft of the motor 117 is fixedly connected to the gear 114.

[0050] In this embodiment, if Figures 5 to 16As shown, the bottom outer wall of the base cylinder seat 111 is sleeved with a bottom cover 120, the top of the base cylinder seat 111 is provided with an inclined rotating cylinder 130, and a receiving groove 131 is opened at the bottom of the inclined rotating cylinder 130. The bottom of the inclined rotating cylinder 130 is rotatably connected to the inner wall of the top of the base cylinder seat 111, and the top of the rotating cylinder 115 is fixedly connected to the inner wall of the receiving groove 131. A crossbeam 139 is fixedly installed on the inner wall of the middle part of the inclined rotating cylinder 130, and both side walls of the top of the crossbeam 139 are provided with sliding grooves 132. The top of the crossbeam 139 is provided with an assembly groove 133. The inner wall of the assembly groove 133 is rotatably connected with a screw rod 134, and a sliding seat 135 is meshed on the screw 134, and the sliding seat 135 is slidably connected with the two groups of sliding grooves 132. A motor 2 137 is fixedly installed at the end wall of the assembly groove 133, and the output shaft of the motor 2 137 is fixedly connected to the end wall of the screw 134. A blood-isolating cloth is installed on the top surface of the assembly groove 133 to prevent blood-isolating cloth from To prevent the drug from entering the assembly groove 133, both side walls of the slide 135 are fixedly installed with a retaining ring 136, and the top outer wall of the inclined rotating cylinder 130 is sleeved with a top cover 138. In the present invention, when the diseased tissue is treated in laparoscopic surgery, the gun rod 220 is inserted into the patient's body through external surgery, so that the front end of the gun rod 220 is located near the tissue to be marked, and the motor 117 is driven by the control panel 230 according to the position of the tissue to be marked, so that the gear 114 is driven to mesh with the inner gear ring 116, thereby driving the rotating cylinder 115 to rotate, so that the inclined rotating cylinder 130 fixedly connected to the rotating cylinder 115 rotates synchronously, and at the same time, the motor 2 137 is started to drive the screw 134 to cooperate with the slide 135, thereby changing the position of the injection cylinder 140 and the needle 142, ensuring that the needle 142 can always be inserted into the patient's diseased tissue in real time from all directions.

[0051] The inner walls of the two groups of clamping rings 136 are both clamped with syringes 140, and the tops of the two groups of syringes 140 are respectively fixedly installed with needles 142 and nozzles 143, and the ends of the two groups of syringes 140 are both fixedly installed with injection hoses 141, and the two groups of injection hoses 141 are both located in the hollow area in the middle of the base cylinder seat 111, and both sides of the inner wall of the front end sleeve of the gun barrel 220 are fixedly installed with cylinder piston mechanisms 144, the cylinder piston mechanism 144 is composed of a sealing cylinder and a piston, and the piston divides the sealing cylinder into two areas, the area connected to the air injection pipe 145 is filled with air, and the interior of the area connected to the injection hose 141 and the injection hose 141 and the syringe 140 are all filled with dyeing liquid (drug, anti-drug powder), and the ends of the two groups of injection hoses 141 are respectively fixedly connected to the output ends of the two groups of cylinder piston mechanisms 144.

[0052] As an implementation method in this embodiment, Fig.17 and Fig. 20As shown, the injection assembly 150 includes an outer sleeve 151, which is slidably connected to the inner wall of the sleeve at the rear end of the gun barrel 220. Slideways 152 are provided on the inner walls on both sides of the outer sleeve 151. The inner wall of the outer sleeve 151 is rotatably connected with studs 153. The inner walls of the two sets of slideways 152 are slidably connected to the same internally threaded sleeve 154, and the internally threaded sleeve 154 is meshed with the studs 153. A connecting sleeve 155 is fixedly installed on the end wall of the internally threaded sleeve 154. The connecting sleeve 155 passes through the end wall of the outer sleeve 151, and part of the studs 153 are located inside the connecting sleeve 155. A push plate 156 is fixedly installed on the outer end wall of the connecting sleeve 155, and the push plate 156 is rotatably connected to the inner wall of the gun barrel 220. Sealed sliding connection, connecting rods 157 are inserted on both sides of the end wall of the push plate 156, and the other end walls of the two groups of connecting rods 157 are fixedly connected to the bottom cover 120. A motor 3 158 is fixedly installed on the outer end wall of the outer sleeve 151, and the output shaft of the motor 3 158 is fixedly connected to the end wall of the stud 153. In the present invention, the motor 3 158 is driven by pressing the trigger 1 231, so that the stud 153 and the internal threaded sleeve 154 are engaged, thereby driving the push plate 156 to slide in the gun barrel 220, and through the guiding effect of the connecting rod 157, the connecting rod 157 pushes the bottom cover 120 forward, so that the needle 142 is inserted into the diseased tissue.

[0053] As an implementation method in this embodiment, Figure 3 and Figure 4 As shown, the reciprocating assembly 160 includes a positioning cylinder 161, which is fixedly connected to the inner wall of the tapered sleeve 210, and the inner wall of the positioning cylinder 161 is slidably connected to the inner wall of the tapered sleeve 210, and a built-in slide cylinder 162 is fixedly installed on the end wall of the built-in slide cylinder 162. The end wall of the built-in slide cylinder 162 is fixedly installed with a linkage rod 163, and the linkage rod 163 penetrates the end wall of the positioning cylinder 161, and the other end wall of the linkage rod 163 is fixedly connected to the outer wall of the outer sleeve 151. The inner wall of the marking gun handle 200 is rotatably connected to a crank shaft 164, and a connecting rod 165 is sleeved in the middle of the crank shaft 164. The other end of the connecting rod 165 is rotatably connected to the inner wall of the built-in slide cylinder 162, and the outer wall of the marking gun handle 200 is fixedly installed with a Motor 166, and the output shaft of motor 166 is fixedly connected to the end wall of crank shaft 164. In the present invention, the motor 166 is driven by pressing trigger 232, so that crank shaft 164 drives connecting rod 2 165 to rotate, drives linkage rod 163 to reciprocate, and makes linkage rod 163 drive outer sleeve 151 to reciprocate, thereby drives syringe 140 and needle 142 to reciprocate. At this time, the control panel 230 drives the micro air pump 146, so as to inject dye into the tissue at a constant speed, thereby clearly marking the resection boundary, ensuring the surgical effect and reducing secondary damage.

[0054] As an implementation method in this embodiment, Figure 3 and Fig.17As shown, ventilation grooves 221 are provided on the top and bottom inner walls of the end of the gun rod 220, an air injection tube 145 is fixedly installed at the output end of the cylinder piston mechanism 144, and the other ends of the two groups of air injection tubes 145 are respectively sealed and connected with the two groups of ventilation grooves 221, and a micro air pump 146 is fixedly installed on the top and bottom walls of the positioning cylinder 161, and an air guide tube 147 is fixedly installed at the output end of the micro air pump 146, and the two groups of air guide tubes 147 are respectively sealed and connected with the two groups of ventilation grooves 221, and the air guide tube 147, the ventilation groove 221 and the air injection tube 145 can form a complete sealing interval. In the present invention, the micro air pump 146 can be driven by the control panel 230 to increase the pressure in the sealing interval formed by the air guide tube 147, the ventilation groove 221 and the air injection tube 145, thereby pushing the piston in the cylinder piston mechanism 144 to inject the medicine at the front end of the piston into the diseased tissue.

[0055] In this embodiment, if Figure 1 As shown, a control panel 230 is installed on the side wall of the marking gun handle 200, and the control panel 230 is electrically connected to the motor 1 17, the motor 2 137, the motor 3 158 and the motor 166. The control panel 230 can control the turning of the needle 142 and the nozzle 143, and can also control the spraying of the medicine in the needle 142 and the nozzle 143. A trigger 1 231 and a trigger 2 232 are movably connected to the bottom of the marking gun handle 200, and the trigger 1 231 and the trigger 2 232 are both electrically connected to the control panel 230. The trigger 1 231 can control the injection of a single drug, and the trigger 2 232 can control the needle 142 to perform continuous injection during the marking process.

[0056] The working method of the technical solution provided by the present invention is as follows: when treating the diseased tissue during laparoscopic surgery, the gun rod 220 is inserted into the patient's body through external surgery, so that the front end of the gun rod 220 is located near the tissue to be marked, and the motor 117 is driven through the control panel 230 according to the position of the tissue to be marked, so that the gear 114 is driven to engage with the inner gear ring 116, thereby driving the rotating cylinder 115 to rotate, so that the inclined rotating cylinder 130 fixed to the rotating cylinder 115 rotates synchronously, and at the same time, the motor 2 137 is started to drive the screw 134 to cooperate with the slide seat 135, thereby changing the position of the injection cylinder 140 and the needle 142, ensuring that the needle 142 can always be inserted into the patient's diseased tissue in real time from all directions.

[0057] When performing a single drug injection into the diseased tissue, after adjusting the positions of the syringe 140 and the needle 142 using the control panel 230, the motor three 158 is driven by pressing the trigger one 231, so that the stud 153 and the internal threaded sleeve 154 are engaged, thereby driving the push plate 156 to slide in the gun barrel 220, and through the guiding action of the connecting rod one 157, the connecting rod one 157 pushes the bottom cover 120 forward, so that the needle 142 is inserted into the diseased tissue. Thereafter, the micro air pump 146 is driven by the control panel 230 to inject gas into the cylinder piston mechanism 144, thereby pushing the piston in the cylinder piston mechanism 144 and injecting the drug at the front end of the piston into the diseased tissue. Similarly, the above method can be used to inject hemostatic drugs and spray hemostatic powder into the surgical wound when extensive bleeding occurs during surgery.

[0058] When continuously marking the diseased tissue, the control panel 230 is adjusted in real time according to each injection position of the tissue to be marked, so that the needle 142 can be smoothly inserted into the marked position. At the same time, the motor 166 is driven by pressing the trigger 232, so that the crank shaft 164 drives the connecting rod 2 165 to rotate, and drives the linkage rod 163 to reciprocate, so that the linkage rod 163 drives the outer sleeve 151 to reciprocate, thereby driving the syringe 140 and the needle 142 to reciprocate. At this time, the control panel 230 drives the micro air pump 146 to inject the dye into the tissue at a constant speed, so as to clearly mark the resection boundary, ensure the surgical effect, and reduce secondary damage.

[0059] By pulling out the front end sleeve of the gun barrel 220, the gas injection tube 145 can be separated from the ventilation groove 221. At the same time, the connecting rod 157 is pulled out to separate the connecting rod 157 from the push plate 156. Thereafter, a new connecting rod 157 and the front end sleeve of the gun barrel 220 are inserted, and the new gas injection tube 145 is connected to the ventilation groove 221. The sterile injection needle can be replaced after the operation is completed or before the operation begins.

[0060] At the same time, when performing marking work, this device needs to be used in conjunction with a laparoscope. Several marking points are injected around the diseased tissue that needs to be cut, and these points are used as indicators. When performing specific operations, because these points can be displayed in the laparoscope, at this time, only the surgical cutting needs to be performed along the only line formed by the points to complete the operation.

[0061] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A new method for using contrast agent in laparoscopy, characterized in that: include: Under laparoscopy, contrast medium is used to inject several dot marks around the position of the mesentery to be resected, and the several dot marks can form a unique indicator line.

2. A marking device for contrast agent in laparoscope, the marking device is used to implement the new method of use as claimed in claim 1, characterized in that: The marking device comprises an execution device (100) and a marking gun handle (200), wherein a conical sleeve (210) is fixedly mounted at the front end of the marking gun handle (200), a gun rod (220) is fixedly mounted at the front end of the conical sleeve (210), and the gun rod (220) is composed of two sections of detachable sleeves, and the execution device (100) is located inside the marking gun handle (200), the conical sleeve (210) and the gun rod (220); The actuator (100) comprises a reciprocating assembly (160), the reciprocating assembly (160) being installed inside a marking gun handle (200) and a conical sleeve (210), an injection assembly (150) being installed at the front end of the reciprocating assembly (160), the injection assembly (150) being located in a rear end sleeve of a gun rod (220), a marking assembly (110) being installed at the front end of the injection assembly (150), the marking assembly (110) being located in a front end sleeve of the gun rod (220); The marking assembly (110) comprises a base cylinder seat (111), the top of the base cylinder seat (111) is provided with an inclination, the bottom inner wall of the base cylinder seat (111) is provided with a meshing area (112), the top inner wall of the base cylinder seat (111) is provided with an oblique groove (113), the oblique groove (113) has the same inclination as the top of the base cylinder seat (111), the right inner wall of the meshing area (112) is rotatably connected with a gear (114), and the oblique groove (113) is provided with a gear (114). ) is rotatably connected to the inner wall of the base (111), and an inner gear ring (116) is fixedly installed at the bottom of the base (115). The inner gear ring (116) is meshed with the gear (114). Both the inner gear ring (116) and the gear (114) are set with an inclination, and the inclination is the same as the inclination of the inclined groove (113). A motor 1 (117) is fixedly installed at the bottom of the base (111), and the output shaft of the motor 1 (117) is fixedly connected to the gear (114).

3. The device for marking contrast agents in laparoscopy according to claim 2, characterized in that: The outer wall of the bottom of the base cylinder seat (111) is sleeved with a bottom cover (120), the top of the base cylinder seat (111) is provided with an inclined rotating cylinder (130), the bottom of the inclined rotating cylinder (130) is provided with a receiving groove (131), the bottom of the inclined rotating cylinder (130) is rotatably connected to the inner wall of the top of the base cylinder seat (111), and the top of the rotating cylinder (115) is fixedly connected to the inner wall of the receiving groove (131), a cross beam (139) is fixedly installed on the inner wall of the middle part of the inclined rotating cylinder (130), both side walls of the top of the cross beam (139) are provided with sliding grooves (132), and the top of the cross beam (139) is provided with an assembly groove ( 133), the inner wall of the assembly groove (133) is rotatably connected with a screw rod (134), the screw rod (134) is meshed with a slide seat (135), and the slide seat (135) is slidably connected with the two sets of slide grooves (132), a second motor (137) is fixedly installed at the end wall of the assembly groove (133), and the output shaft of the second motor (137) is fixedly connected with the end wall of the screw rod (134), a blood-isolating cloth is installed on the top surface of the assembly groove (133), and retaining rings (136) are fixedly installed on both side walls of the slide seat (135), and a top cover (138) is sleeved on the top outer wall of the inclined rotating cylinder (130).

4. The device for marking contrast agents in laparoscopy according to claim 3, characterized in that: The inner walls of the two groups of clamping rings (136) are clamped with syringes (140), the tops of the two groups of syringes (140) are respectively fixedly mounted with needles (142) and nozzles (143), the ends of the two groups of syringes (140) are respectively fixedly mounted with injection hoses (141), and the two groups of injection hoses (141) are both located in the hollow area in the middle of the base cylinder seat (111), and the inner walls of the front end sleeve of the gun rod (220) are both fixedly mounted with barrel piston mechanisms (144), and the ends of the two groups of injection hoses (141) are respectively fixedly connected to the output ends of the two groups of barrel piston mechanisms (144).

5. The device for marking contrast agents in laparoscopy according to claim 4, characterized in that: The injection assembly (150) comprises an outer sleeve (151), the outer sleeve (151) is slidably connected to the inner wall of the rear end sleeve of the gun barrel (220), the inner walls of both sides of the outer sleeve (151) are provided with slideways (152), the inner wall of the outer sleeve (151) is rotatably connected with a stud (153), the inner walls of the two groups of the slideways (152) are slidably connected with the same internally threaded sleeve (154), and the internally threaded sleeve (154) is meshed with the stud (153), and the end wall of the internally threaded sleeve (154) is fixedly installed with a connecting sleeve (155), and the connecting sleeve (155) is connected through The end wall of the outer sleeve (151) is penetrated, and part of the stud (153) is located inside the connecting tube (155); a push plate (156) is fixedly installed on the outer end wall of the connecting tube (155), and the push plate (156) is sealingly and slidably connected to the inner wall of the gun barrel (220); connecting rods (157) are inserted on both sides of the end wall of the push plate (156); the other end walls of the two groups of connecting rods (157) are fixedly connected to the bottom cover (120); a motor (158) is fixedly installed on the outer end wall of the outer sleeve (151), and the output shaft of the motor (158) is fixedly connected to the end wall of the stud (153).

6. The device for marking contrast agents in laparoscopy according to claim 5, characterized in that: The reciprocating assembly (160) comprises a positioning cylinder (161), wherein the positioning cylinder (161) is fixedly connected to the inner wall of the conical sleeve (210), the inner wall of the positioning cylinder (161) is slidably connected to an internal slide cylinder (162), an end wall of the internal slide cylinder (162) is fixedly mounted with a linkage rod (163), and the linkage rod (163) penetrates the end wall of the positioning cylinder (161), and the other end wall of the linkage rod (163) is fixedly connected to the outer wall of the outer sleeve (151), the inner wall of the marking gun handle (200) is rotatably connected to a crank shaft (164), a second connecting rod (165) is sleeved in the middle of the crank shaft (164), and the other end of the second connecting rod (165) is rotatably connected to the inner wall of the internal slide cylinder (162), a motor (166) is fixedly mounted on the outer wall of the marking gun handle (200), and an output shaft of the motor (166) is fixedly connected to the end wall of the crank shaft (164).

7. The marking device for contrast agent in laparoscope according to claim 6, characterized in that: A ventilation groove (221) is provided on the top and bottom inner wall of the end of the gun rod (220); an air injection pipe (145) is fixedly installed at the output end of the cylinder piston mechanism (144); the other ends of the two groups of air injection pipes (145) are respectively sealed and connected to the two groups of ventilation grooves (221); a micro air pump (146) is fixedly installed on the top and bottom wall of the positioning cylinder (161); an air guide pipe (147) is fixedly installed at the output end of the micro air pump (146); the two groups of air guide pipes (147) are respectively sealed and connected to the two groups of ventilation grooves (221).

8. The device for marking contrast agents in laparoscopy according to claim 7, characterized in that: A control panel (230) is installed on the side wall of the marking gun handle (200), and the control panel (230) is electrically connected to the motor 1 (117), the motor 2 (137), the motor 3 (158) and the motor (166). A trigger 1 (231) and a trigger 2 (232) are movably connected to the bottom of the marking gun handle (200), and the trigger 1 (231) and the trigger 2 (232) are electrically connected to the control panel (230).

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