A laparoscopic digestive endoscope combined positioning and measuring ruler and its control method

Abstract

The present invention belongs to the technical field of medical auxiliary appliances, and discloses a laparoscopic digestive endoscope combined positioning and measuring ruler and its control method. A roller is arranged between a left shell and a right shell. A connecting bolt connecting the left shell and the right shell passes through the middle of the roller. The roller can rotate around the bolt shaft. A roller groove is formed on the outer surface of the roller, and a steel wire harness is wound around the roller groove in a circle; the other end of the steel wire harness extends to the front end and is connected to a ruler bending section light strip; a plurality of annularly distributed gear grooves are arranged on the inner side of the roller, and an elastic electrode is arranged in each gear groove. An electrode cover is arranged at the lower end of the elastic electrode; two gear pins corresponding to the gear grooves and the extending length of the steel wire harness are connected to the inner side of the right shell, and a spring is sleeved outside the gear pins. The present invention can be combined with a digestive endoscope for precise positioning during the operation through the tracing of the measuring ruler light strip, and realizes precise measurement under laparoscopy by using different measuring lengths indicated by light strips of different colors.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical auxiliary appliances, and particularly relates to a laparoscopic digestive endoscope combined positioning and measuring ruler and a control method thereof. Background Art

[0002] At present, with the development and maturity of laparoscopic techniques, laparoscopic techniques have gradually been applied to most gastrointestinal surgery operations, especially laparoscopic surgery for gastrointestinal cancer. However, with the emergence and maturity of relevant diagnosis and treatment guidelines, higher precision requirements for the surgical resection margin in laparoscopic radical resection of gastrointestinal cancer have emerged, and the required distances for tumor resection margins in different parts are different. In specific practices, the following deficiencies exist:

[0003] 1. Inaccurate positioning. Since cancer tumors originate from the epithelial layer, that is, the inner side of the gastrointestinal wall, located within the gastrointestinal cavity, when performing laparoscopic surgery and entering the abdominal cavity, what can be observed is the outer side of the gastrointestinal wall, and the tumor cannot be directly observed. Especially for tumors at an earlier stage that have not invaded the entire layer of the gastrointestinal wall, it is even more impossible to locate the position of the tumor and the resection margin. At this time, it is necessary to rely on a gastrointestinal endoscope to enter the gastrointestinal cavity through the mouth / anus to observe the tumor and locate it in response to the laparoscopic view on the inner and outer sides of the gastrointestinal wall. However, in practice, the method of using laparoscopic forceps to touch the gastrointestinal wall while observing the touched point through the endoscope is often used for positioning. This method of positioning has the problem of lack of fineness. Especially in areas where the gastrointestinal wall is thicker or affected by tumors, local gastrointestinal wall edema and stiffness occur, and when the forceps touch, it does not show a dot-like fluctuation under the endoscope view, but a whole area fluctuation, resulting in inaccurate positioning.

[0004] 2. Imprecise measurement. For radical resection of distal gastric cancer, the proximal resection margin of the tumor is required to be 5 cm and the distal resection margin is 2 cm; for cancer of the esophagogastric junction, the proximal resection margin is required to be 2 cm, for mid-low rectal cancer, the distal resection margin is required to be 2 cm, and for ultra-low anus-preserving surgery, the distal resection margin is required to exceed 1 cm, and for colon cancer surgery, the resection margin is required to be more than 10 cm. However, there is currently no dedicated endoscopic measuring ruler. In practice, visual measurement under the endoscope varies from surgeon to surgeon, resulting in large errors; it is time-consuming and laborious to cut out corresponding lengths of sutures outside the body according to a ruler and send them into the body for comparative measurement; using the tip of a laparoscopic instrument for comparison is also time-consuming and prone to errors.

[0005] Due to the inability to accurately measure, the positioning of the resection margin is inaccurate. If the resection margin is too large, the surgical difficulty increases; if the resection margin is too small, the oncological radical effect is affected. Therefore, there is a need for a laparoscopic positioning and measuring ruler that meets the above requirements in current gastrointestinal laparoscopic surgery.

[0006] Through the above analysis, the problems and defects existing in the prior art are as follows:

[0007] In laparoscopic surgery, there are situations of inaccurate positioning and imprecise measurement, resulting in too large a resection margin, increasing the surgical difficulty; too small a resection margin affects the oncological radical effect.

[0008] The difficulty in solving the above problems and defects is as follows:

[0009] In practice, a laparoscopic forceps is often used to touch the gastrointestinal wall while observing the touched point with an endoscope for positioning. However, this positioning method is not precise enough. Especially in areas with a thick gastrointestinal wall or where the local gastrointestinal wall is edematous and rigid due to tumor influence, when the forceps touches, it does not show a dot-like fluctuation under the endoscope view but a whole area fluctuation, resulting in inaccurate positioning. Currently, there is no dedicated endoscopic measuring ruler. In practice, it mainly relies on the surgical experience of the operator, which is greatly affected by subjective factors. Visual measurement under the endoscope varies from operator to operator, with a large error, and sometimes additional resection is required; cutting out a corresponding length of suture outside the body and sending it into the body for comparison and measurement is time-consuming and laborious; using the tip of the laparoscopic instrument for comparison is also time-consuming and prone to errors. However, so far, no mature laparoscopic measuring instrument has been developed. Especially for tumors in different resection sites, with different designed resection margins and measurement lengths, and different angles between the Trocar and the tumor site, the angles that the measuring ruler needs to adjust are variable. Therefore, it is difficult to design a measuring ruler that can adjust both the measuring length and the measuring angles in the horizontal and vertical directions simultaneously, and this problem has not been solved clinically yet.

[0010] The significance of solving the above problems and defects is as follows: Designing a laparoscopic measuring ruler that can adjust both the measuring length and the measuring angles in the horizontal and vertical directions can bring laparoscopic surgery into the era of precise measurement. At the same time, with the light strip design, it can achieve the function of echoing and positioning between the digestive endoscope and the laparoscope even though they are separated by the digestive tract wall, forming a combined laparoscopic digestive endoscope positioning and measuring ruler to ensure intraoperative positioning, resection margin judgment, surgical safety, and radical treatment. Summary of the Invention

[0011] In view of the problems existing in the prior art, the present invention provides a combined laparoscopic digestive endoscope positioning and measuring ruler and its control method.

[0012] The present invention is implemented as follows. A combined laparoscopic digestive endoscope positioning and measuring ruler includes:

[0013] A light tracing module for precise intraoperative positioning by combining the light strip with the digestive endoscope;

[0014] A distance adjustment module for adjusting the light strip to different measurement distances by driving the wire harness wound around the outer side of the roller;

[0015] A color switching module for switching the color of the light strip by the contact between different elastic motors arranged on the inner side of the roller and the gear pins;

[0016] A front-end attitude adjustment module for adjusting the attitude of the front end by rotating the hand lever connected to the front ends of the left housing and the right housing. The other end of the hand lever is connected to the ruler bending section through a pin shaft.

[0017] Further, the roller is arranged between the left housing and the right housing. A connecting bolt for connecting the left housing and the right housing penetrates through the middle of the roller. A roller groove is formed on the outer surface of the roller, and a wire harness is wound around the roller groove. The other end of the wire harness extends to the ruler bending section and is connected to the light strip.

[0018] Further, a plurality of annularly distributed gear grooves are arranged on the inner side of the roller, and different elastic electrodes are installed in different gear grooves. An electrode cover is arranged at the lower end of the elastic electrode.

[0019] Further, there are two gear pins respectively aligned with the gear grooves and the wire harness, and the spring is sleeved outside the gear pins.

[0020] Further, scale lines are engraved on the outer surface of the roller.

[0021] Further, a rear handle is connected between the left housing and the right housing through a rotating shaft, and a thrust spring is clamped between the rear handle and the left and right housings.

[0022] Further, a battery box is arranged on the upper surface of the right housing, and a battery box cover is arranged outside the battery box.

[0023] Further, the light strip is provided with a first light strip and a second light strip. The first light strip is connected to the front end of the wire harness, and the second light strip is connected to the outside of the ruler bending section.

[0024] Further, a traction wire is arranged between the left housing and the right housing. One end of the traction wire is connected to the ruler bending section, and the other end is connected to the rear handle. By driving the rear handle, the bending angle of the ruler bending section relative to the hand lever can be adjusted.

[0025] Another object of the present invention is to provide a control method for a combined positioning and measuring ruler of a laparoscope and a digestive endoscope. The control method for the combined positioning and measuring ruler of the laparoscope and the digestive endoscope includes:

[0026] The light strip is placed at the front end of the ruler bending section to provide light. The ruler bending section and the hand lever are connected by a pin shaft, and the ruler bending section can perform a bending and rotating movement relative to the hand lever.

[0027] The hand lever is threadedly connected between the left and right housings, and the hand lever can perform a 360° rotational movement. By turning the hand lever, the attitude of the ruler bending section can be adjusted.

[0028] When the roller rotates to different gears,

[0029] The gear pin touches different elastic electrodes to trigger lights of different colors. Since the second light strip is composed of five light-emitting diodes with different light-emitting colors, and different light-emitting diodes are lit by electric circuits composed of elastic electrodes in different gears, touching different elastic electrodes with the gear pin triggers lights of different colors; Rotating the roller counterclockwise makes the steel wire harness drive the second light strip to extend out of the ruler bending section, and the extension lengths are five gears of 0mm, 10mm, 20mm, 50mm, and 100mm respectively. Each extension length gear corresponds to a lighting circuit of a different color diode. Rotating the roller clockwise makes the steel wire harness drive the light strip to contract to the ruler bending section.

[0030] The rear handle can achieve rotational movement relative to the left and right shells. There is a thrust spring between the rear handle and the left and right shells to achieve the reset of the rear handle. The ruler bending section is connected to the rear handle through a steel wire, and the ruler bending section can be driven by the rear handle to achieve bending rotational movement, and the bending angle can reach more than 120°.

[0031] Combining all the above technical solutions, the advantages and positive effects of the present invention are as follows:

[0032] The present invention can accurately locate during the operation by combining the laparoscopic digestive endoscope with the measurement ruler light strip tracer, and utilize the different measurement lengths shown by the light strips of different colors to achieve accurate measurement under laparoscopy. Brief Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. Obviously, the following described drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a schematic structural diagram of the laparoscopic digestive endoscope combined positioning measurement ruler provided by the embodiment of the present invention.

[0035] Figure 2 It is an exploded schematic diagram of the laparoscopic digestive endoscope combined positioning measurement ruler provided by the embodiment of the present invention.

[0036] Figure 3 It is a schematic structural diagram of the roller provided by the embodiment of the present invention.

[0037] Figure 4 It is a schematic structural diagram of the elastic electrode provided by the embodiment of the present invention.

[0038] In the figure: 1. Ruler bending section; 2. Hand lever; 3. Left housing; 4. Right housing; 5. Roller; 6. Rear handle; 7. Thrust spring; 8. First light strip; 9. Second light strip; 10. Battery box cover; 11. Connecting bolt; 12. Wire harness; 13. Towing wire; 14. Gear pin and spring; 15. Battery box; 16. Elastic electrode; 17. Electrode cover.

[0039] Figure 5 It is a schematic diagram of the first structural simulation state of the laparoscopic digestive endoscope combined positioning and measuring ruler provided by the embodiment of the present invention.

[0040] Figure 6 It is a schematic diagram of the second structural simulation state of the laparoscopic digestive endoscope combined positioning and measuring ruler provided by the embodiment of the present invention.

[0041] Figure 7 It is a schematic diagram of the third structural simulation state of the laparoscopic digestive endoscope combined positioning and measuring ruler provided by the embodiment of the present invention.

[0042] Figure 8 It is a schematic diagram of the fourth structural simulation state of the laparoscopic digestive endoscope combined positioning and measuring ruler provided by the embodiment of the present invention. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] Aiming at the problems existing in the prior art, the present invention provides a laparoscopic digestive endoscope combined positioning and measuring ruler and its control method. The present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] As Figures 1 to 4 shown, the laparoscopic digestive endoscope combined positioning and measuring ruler provided by the embodiment of the present invention includes a left housing 3 and a right housing 4; a roller is arranged between the left housing 3 and the right housing 4, a connecting bolt connecting the left housing 3 and the right housing 4 is passed through the middle of the roller 5, a roller groove is formed on the outer surface of the roller 5, a wire harness is wound around the roller groove, and the other end of the wire harness extends to the front end and is connected to a light strip; a plurality of annularly distributed gear grooves are arranged inside the roller 5, an elastic electrode 16 is arranged in each gear groove, and an electrode cover 17 is arranged at the lower end of the elastic electrode 16.

[0046] In the embodiment of the present invention, two gear pins respectively aligned with the gear grooves and the wire harness are connected inside the right housing 4, and a spring is sleeved outside the gear pins.

[0047] In the embodiment of the present invention, scale lines are engraved on the outer surface of the roller 5.

[0048] In the embodiment of the present invention, a manual lever is threadedly connected to the front ends of the left housing 3 and the right housing 4, and the other end of the manual lever is connected to the front end by a bolt.

[0049] In the embodiment of the present invention, a rear handle is connected between the left housing 3 and the right housing 4 by a rotating shaft, and a thrust spring is clamped between the rear handle and the left and right housings 4.

[0050] On the upper surface of the right housing 4 in the embodiment of the present invention, a battery box is provided, and a battery box cover is arranged outside the battery box.

[0051] In the embodiment of the present invention, the light strip is provided with a first light strip 8 and a second light strip 9. The first light strip 8 is connected to the outer end of the steel wire harness 12, and the second light strip 9 is connected to the outside of the bent section of the ruler.

[0052] When the present invention is in use, the light strip is placed at the front end to provide a light source. The front end and the manual lever are connected by a bolt, and the front end can rotate relative to the manual lever. The manual lever is threadedly connected to the left and right housings 4, and the manual lever can achieve a 360° rotational movement. By turning the manual lever, the attitude of the front end can be adjusted. The roller 5 is placed between the left and right housings 4. A steel wire harness is wound around the groove of the roller 5, and the other end of the steel wire harness extends to the front end of the bent section of the ruler and is connected to the light strip. The roller 5 is provided with scale lines such as 0, 10, 20, 50, 100, etc. At each scale line, the cooperation between the groove on the roller 5 and the positioning pin and the spring assists the rotation and positioning of the roller 5. At each gear position, an elastic electrode is built into the groove of the roller 5. When the roller 5 rotates to different gear positions, the gear pin touches the elastic electrode to trigger lights of different colors. During the use process, rotate the roller 5 counterclockwise to drive the steel wire harness to drive the light strip to extend out of the bent section of the ruler,

[0053] and the extended lengths are 0mm, 10mm, 20mm, 50mm, 100mm, and each extended length is distinguished by lights of different colors; rotate the roller 5 clockwise to drive the steel wire harness to drive the light strip to contract into the bent section of the ruler. The rear handle is connected to the left and right housings 4 by a rotating shaft, and the rear handle can rotate relative to the left and right housings 4. A thrust spring is arranged between the rear handle and the left and right housings 4 to realize the reset of the rear handle. The bent section of the ruler is connected to the rear handle by a traction wire, and the bent section of the ruler can be driven by the rear handle to realize a bending rotational movement, and the bending angle can reach more than 120°. The simulation experiment effect diagram is as Figures 5 - 8 .

[0054] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0055] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A laparoscopic digestive endoscope combined positioning and measuring ruler, characterized in that, The laparoscopic digestive endoscope combined positioning and measuring ruler includes: A light tracing module for accurately positioning during the operation by combining a light strip with a digestive endoscope; A distance adjustment module for adjusting the light strip to different measurement distances by driving the wire harness wound around the outer side of the roller; A color switching module for switching the lighting circuits of different color diodes in the light strip by contacting different elastic electrodes arranged inside the roller with the gear pins; A posture adjustment module for the bent section of the ruler, for adjusting the posture of the front end by rotating the hand lever connected to the front ends of the left housing and the right housing, and the other end of the hand lever is connected to the bent section of the ruler through a pin shaft; A bending movement adjustment module for the bent section of the ruler, for controlling the bending and rotating movement of the bent section of the ruler by the traction wire connected to the rear handle; The roller is arranged between the left housing and the right housing, a connecting bolt connecting the left housing and the right housing is penetrated through the middle of the roller, the roller can rotate around the bolt shaft, a roller groove is formed on the outer surface of the roller, and a wire harness is wound around the roller groove, and the other end of the wire harness extends to the front end and is connected to the light strip of the bent section of the ruler; A plurality of annularly distributed gear grooves are arranged inside the roller, different elastic electrodes are installed in different gear grooves, and an electrode cover is arranged at the lower end of the elastic electrode; 2. The laparoscopic digestive endoscope combined positioning and measuring ruler according to claim 1, wherein Two gear grooves corresponding to the length of the extended wire harness are arranged at the telescopic position of the gear pin, and a spring is sleeved on the outer shaft of the gear pin; 3. The laparoscopic digestive endoscope combined positioning and measuring ruler according to claim 1, wherein, The outer surface of the roller is engraved with scale lines for indicating different gears; 4. The laparoscopic digestive endoscope combined positioning and measuring ruler according to claim 1, wherein, A rear handle is connected between the left housing and the right housing through a rotating shaft, a thrust spring is clamped between the rear handle and the left and right housings, and the rear handle controls the bending and rotating movement of the bent section of the ruler through a traction wire; 5. The laparoscopic digestive endoscope combined positioning and measuring ruler according to claim 1, characterized in that, A battery box is arranged on the upper surface of the right housing, and a battery box cover is arranged outside the battery box; 6. The laparoscopic digestive endoscope combined positioning and measuring ruler according to claim 1, characterized in that The light strip is provided with a first light strip and a second light strip, the first light strip is connected to the outer end of the wire harness, and the second light strip is connected to the outside of the bent section of the ruler; 7. The laparoscopic digestive endoscope combined positioning and measuring ruler according to claim 1, characterized in that, A traction wire is arranged between the left housing and the right housing;

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