CN106955142B - Gastrointestinal endoscope loop device with scales - Google Patents
Gastrointestinal endoscope loop device with scales Download PDFInfo
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- CN106955142B CN106955142B CN201710279818.5A CN201710279818A CN106955142B CN 106955142 B CN106955142 B CN 106955142B CN 201710279818 A CN201710279818 A CN 201710279818A CN 106955142 B CN106955142 B CN 106955142B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/32056—Surgical snare instruments
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Abstract
the invention discloses a gastrointestinal endoscope ring sleeving device with scales, which has the technical scheme that the gastrointestinal endoscope ring sleeving device comprises a ring operating part and a ring inserting rod, wherein the ring operating part comprises a core rod and a sliding ring sleeved on the core rod, and the sliding ring can slide on the core rod in the axial direction relative to the core rod; the ferrule insertion rod is arranged in a hollow structure, one end of the ferrule insertion rod is fixedly connected with the core rod, a ferrule rope is inserted into the ferrule insertion rod, a ferrule ring is arranged at one end of the ferrule rope penetrating through the ferrule insertion rod, and the other end of the ferrule rope is connected with the slip ring; the ferrule ring comprises a C-shaped ferrule C part and an I-shaped ferrule I part, the ferrule C part and the ferrule I part are connected in a tail-ending mode to form a D-shaped structure, a length mark is arranged on the ferrule I part, and the length mark is arranged at one end, far away from a ferrule rope, of the ferrule I part and extends towards the other end. The snare can quickly and accurately measure the size of sessile polyp and adenoma, so that the operation is more intuitive, the progress of the operation under the endoscope is accelerated, and the pain time of a patient is shortened.
Description
Technical Field
The invention relates to the technical field of medical products, in particular to a gastrointestinal endoscope loop device with scales.
Background
Polyps refer to a neoplasm that protrudes through the mucosal surface, regardless of its size, morphology and histological type. Polyps include hyperplastic, inflammatory, hamartoma, adenomas, and other benign tumors, among others. The form, location, extent, single or multiple, size, morphology and color of the polyp's junction with the intestinal wall are relevant to the judgment of its nature, tendency to malignant transformation and treatment.
Among them, adenomatous polyps are the most common polyps of the digestive tract, including tubular adenomas, villous adenomas and tubular villous adenomas. Tubular adenomas are the most common ones of polyps of the digestive tract, accounting for about 80%, and are composed of a hyperplastic mucosal glandular epithelium. Many or single ones, with nodular surface, usually have pedicles, which usually do not exceed 2cm, are dark red and prone to bleeding. The gland tissue is hyperplastic under the microscope, the gland epithelium is arranged regularly and well differentiated, and the villus component of the tubular structure is less than 20 percent. Villous adenomas, also known as papillary adenomas, are less common, and their superficial skin appears papillary or villous hyperplasia and bulge under the microscope, with villous components > 80%. Often single hair, wide base, generally without pedicles. The surface of the villus is coated by a columnar epithelial layer, and a small amount of interstitium is arranged in the middle of the villus, contains more blood vessels and is easy to bleed. Sometimes the columnar epithelium contains a large amount of mucus. Such epithelial cells may have varying degrees of heterogeneity with high rates of cancer. Tubular villous adenomas have both of these manifestations, with a villous component between 20% and 80%. The cancer rate is high. Multiple adenomas occur well in the colon, but also throughout the digestive tract, such as the stomach and small intestine. It is common among young people and is easy to become cancerous.
Currently, polypectomy is mainly performed using an endoscope with a snare device, and the operation is suitable for pedicled polyps and adenomas of various sizes and sessile polyps and adenomas with a diameter of less than 2cm, while an intra-endoscopic submucosal dissection ESD is applied when sessile polyps and adenomas with a diameter of more than 2cm are found. Therefore, the size of the sessile polyp and the size of the adenoma are very important for a doctor to judge, the size of the sessile polyp and the size of the adenoma cannot be measured by the conventional ferrule device, the doctor needs to repeatedly observe the sessile polyp and the adenoma under the endoscope by virtue of the endoscope to judge the size of the sessile polyp and the adenoma by experience, the operation feasibility of an operator is limited, the operation time is prolonged, the risk is improved, and the pain is increased for a patient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a gastrointestinal endoscope loop device with scales, which can quickly and accurately measure the sizes of sessile polyps and adenomas, so that the operation is more intuitive, the progress of the operation under an endoscope is accelerated, and the pain time of a patient is shortened.
In order to achieve the purpose, the invention provides the following technical scheme: a gastrointestinal endoscope ring sleeving device with scales comprises a ring operating part and a ring inserting rod, wherein the ring operating part comprises a core rod and a sliding ring sleeved on the core rod, and the sliding ring can slide on the core rod relative to the axial direction of the core rod; the ferrule insertion rod is arranged in a hollow structure, one end of the ferrule insertion rod is fixedly connected with the core rod, a ferrule rope is inserted into the ferrule insertion rod, a ferrule ring is arranged at one end of the ferrule rope penetrating through the ferrule insertion rod, and the other end of the ferrule rope is connected with the sliding ring; in the process that the slip ring slides from the tail end of the core rod to one end connected with the ferrule insertion rod, the slip ring pushes the ferrule rope to enable the ferrule ring at the end part of the ferrule rope to extend out of the ferrule insertion rod, and on the contrary, the slip ring pulls the ferrule rope to enable the ferrule ring at the end part of the ferrule rope to retract into the ferrule insertion rod; the ferrule ring comprises a C-shaped ferrule C part and an I-shaped ferrule I part, the ferrule C part and the ferrule I part are connected in a D-shaped structure in a tail-ending mode, a length mark is arranged on the ferrule I part, and the length mark is arranged from one end, far away from the ferrule rope, of the ferrule I part and extends towards the other end.
The invention is further configured to: the ferrule I part comprises a thick rope part and a thin rope part, the outer diameter of the thick rope part is larger than that of the thin rope part, the thick rope part is connected with the thin rope part end to end, and when the length of the thin rope part or the thick rope part is the length of a measuring standard, the thin rope part or the thick rope part is a length mark; when the thick rope part and the thin rope part are arranged in a plurality of numbers and are sequentially connected end to end at intervals, and one thick rope part and/or one thin rope part are both a basic unit of a measurement standard, the total length of the thick rope part and the thin rope part is a length mark.
The invention is further configured to: the ferrule I part is provided with a color layered structure, the color layered structure comprises at least two colors, and when the length of each color is a basic unit of a measurement standard, the color layered structure is a length mark; where the length of one color is the length of the measurement standard, the color is a length stamp.
the invention is further configured to: the core rod is provided with scales, and when the ferrule ring is shrunk in the ferrule insertion rod, the position of the slip ring does not exceed zero scale marks of the scales on the core rod; when the ferrule ring extends out of the ferrule insertion rod, the distance that the end of the ferrule ring extends out of the end of the ferrule insertion rod is consistent with the reading of the scale of the slip ring on the core rod.
the invention is further configured to: the two loop ropes in the loop inserting rod are connected with the loop ring end to form an n-shaped structure, one ends of the two loop ropes are fixedly connected with two ends of the loop ring respectively, and the other ends of the two loop ropes are rotatably connected with the slip ring; the slip ring is provided with two adapter cylinders which are used for two ferrule ropes to pass through respectively, the ferrule ropes can rotate in the adapter cylinders, and one end of each ferrule rope which passes through the adapter cylinders is provided with a driving piece which drives the ferrule ropes to rotate through driving the ferrule ropes to rotate.
The invention is further configured to: one end of each ferrule rope penetrating through the adapter cylinder is coaxially provided with a rotating rod, the two rotating rods are rotatably connected into the adapter cylinder through a sleeve bearing, and two ends of each rotating rod are provided with limiting blocks for limiting the rotating rods to axially float in the adapter cylinder; the driving piece comprises a hand wheel or a driving motor and can drive the loop rope to rotate by being arranged on one or two rotating rods.
The invention is further configured to: the side wall of the circumferential direction of the ferrule ring is provided with a plurality of pushing convex teeth, and the pushing convex teeth extend along the length direction of the ferrule ring.
The invention is further configured to: the pushing convex teeth are arranged in a spiral shape along the circumferential side wall of the ferrule ring, and gaps among the plurality of pushing convex teeth are kept consistent.
The invention is further configured to: the looping ring comprises a plurality of looping ropes, and all the looping ropes are wound into a strand in the same direction.
in conclusion, the invention has the following beneficial effects: after the ferrule ring extends out of the end part of the ferrule insertion rod, the exposed ferrule I part is close to the polyp or adenoma, and whether the size of the polyp or adenoma is suitable for a cutting operation by using the ferrule device or not can be visually judged by comparing the length mark on the ferrule I part with the polyp or adenoma, so that the operation is more visual, the progress of the operation under the endoscope is accelerated, and the pain time of a patient is shortened.
Drawings
FIG. 1 is a schematic structural view of a gastrointestinal endoscope snare with scales;
FIG. 2 is a schematic view of a partial structure at the ferrule ring of the ferrule instrument (first embodiment of length print);
FIG. 3 is a schematic view of a partial structure at the ferrule ring of the ferrule holder (second embodiment of length print);
FIG. 4 is a schematic view of a partial structure at the ferrule ring of the ferrule holder (another embodiment of the second embodiment of the length stamp);
FIG. 5 is a schematic view of a partial structure at the ferrule ring of the ferrule holder (third embodiment of length stamp);
FIG. 6 is a schematic view of a partial structure at the ferrule ring of the ferrule holder (a fourth embodiment of a length stamp);
FIG. 7 is a partial structural view of a slip ring at a transition cylinder;
FIG. 8 is a schematic view of a collar ring;
fig. 9 is another structural diagram of the ferrule ring.
Reference numerals: 1. a ferrule operating section; 11. a core bar; 111. calibration; 12. a slip ring; 121. a transfer cylinder; 2. a ferrule insertion rod; 3. looping a rope; 31. rotating the rod; 32. a bearing; 33. a limiting block; 4. a ferrule ring; 41. a ferrule C portion; 42. a ferrule I portion; 43. pushing the convex teeth; 44. looping a rope; 5. length imprinting; 51. a thick rope portion; 52. a thin rope portion; 53. a color hierarchy; 6. a drive member.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It is noted that the words "front", "rear" and "front" used in the following description,
"left," "right," "upper," and "lower" refer to directions in the drawings, and the words "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-9, a scaled gastrointestinal endoscope loop device comprises a loop operating part 1 and a loop inserting rod 2, wherein the loop operating part 1 comprises a core rod 11 and a slip ring 12 sleeved on the core rod 11, and the slip ring 12 can slide on the core rod 11 relative to the axial direction of the core rod 11; the ferrule insertion rod 2 is arranged in a hollow structure, one end of the ferrule insertion rod is fixedly connected with the core rod 11, a ferrule rope 3 is inserted into the ferrule insertion rod 2, a ferrule ring 4 is arranged at one end of the ferrule rope 3 penetrating through the ferrule insertion rod 2, and the other end of the ferrule rope is connected with a slip ring 12; when the slip ring 12 is used, in the process of sliding from the tail end of the core rod 11 to the end connected with the ferrule insertion rod 2, the slip ring 12 pushes the ferrule rope 3 to enable the ferrule ring 4 at the end part to extend out of the ferrule insertion rod 2, and conversely, in the process of sliding the slip ring 12 from the core rod 11 to the tail end, the slip ring 12 pulls the ferrule rope 3 to enable the ferrule ring 4 at the end part to be retracted into the ferrule insertion rod 2.
The ferrule ring 4 comprises a C-shaped ferrule C portion 41 and an I-shaped ferrule I portion 42, the ferrule C portion 41 and the ferrule I portion 42 are connected in a D-shaped structure, the ferrule I portion 42 is provided with a length mark 5, and the length mark 5 is arranged from one end of the ferrule I portion 42 far away from the ferrule rope 3 and extends to the other end. After the ferrule ring 4 extends out of the end part of the ferrule insertion rod 2, the exposed ferrule I part 42 is close to a polyp or an adenoma, and the length mark 5 on the ferrule I part 42 is compared with the polyp or the adenoma, so that accurate measurement under an endoscope can be realized, and medical staff can quickly, accurately and visually judge whether the size of the polyp or the adenoma is suitable for a ferrule device to perform resection operation, so that the operation is more visual, the progress of operation under a scope is accelerated, and the pain time of a patient is shortened.
In addition, the polyp can contract after being taken out of the human body, so that the volume of the polyp measured in vitro is not accurate, measurement under an endoscope can be realized through the length mark 5, accurate measurement on the size of the polyp is facilitated, the risk of polyp removal treatment before the polyp is cut off by medical staff is facilitated, and the polyp can be used for evaluating postoperative complications according to the size of the polyp, evaluating the risk of the polyp, facilitating the formulation of follow-up visit plans, and improving the compliance of patients.
In the process of performing resection operation by using the snare, after the snare ring 4 is used for snare tightening, the snare ring 4 is shrunk into the snare insertion rod 2 by pulling the sliding ring 12, the snare C portion 41 and the snare I portion 42 are shrunk into the snare insertion rod 2 at the same time, and since the length of the snare C portion 41 is greater than that of the snare I portion 42, most of the snare ring 4 tightening the polyp is the slender snare C portion 41, so that the resection effect of the snare is not affected.
The length stamp 5 described above may include various embodiments:
First embodiment of the length stamp 5: the ferrule I part 42 comprises a thick rope part 51 and a thin rope part 52, the outer diameter of the thick rope part 51 is larger than that of the thin rope part 52, and the difference between the outer diameters of the thick rope part 51 and the thin rope part 52 can be judged by naked eyes; and the thick string portion 51 and the thin string portion 52 are connected end to end, when the length of the thin string portion 52 or the thick string portion 51 is a measured standard length, that is, when the length of the thin string portion 52 or the thick string portion 51 is 2cm, the thin string portion 52 or the thick string portion 51 is a length mark 5, as shown in fig. 2. The scheme can facilitate a doctor to compare polyps or adenomas with the thin rope part 52 or the thick rope part 51, when the diameters of the polyps or adenomas are larger than the thin rope part 52 or the thick rope part 51, the diameters of the polyps or adenomas are larger than 2cm, and endoscopic submucosal dissection ESD should be performed; otherwise the diameter of the polyp or adenoma is less than 2cm, the snare can be used to perform a polypectomy.
Second embodiment of the length stamp 5: the ferrule I part 42 also comprises a thick rope part 51 and a thin rope part 52, the outer diameter of the thick rope part 51 is larger than that of the thin rope part 52, and the difference between the outer diameters of the thick rope part 51 and the thin rope part 52 can be judged by naked eyes; when the thick rope portion 51 and the thin rope portion 52 are provided in several numbers and are connected end to end at intervals in sequence, and one thick rope portion 51 and/or one thin rope portion 52 are a basic unit of a measurement standard, that is, when the length of one thick rope portion 51 and one thin rope portion 52 is 0.5cm, the total length of the two thick rope portions 51 and the two thin rope portions 52 is a length mark 5, as shown in fig. 3.
Alternatively, the length of the first thick string portion 51 may be 0.5cm, the length of the first thin string portion 52 may be 1cm, the length of the second thick string portion 51 may be 1.5cm, and the length of the second thin string portion 52 may be 2cm, so that each of the thick string portion 51 and the thin string portion 52 has a length mark 5, as shown in fig. 4.
third embodiment of the length stamp 5: a color layering structure 53 is provided on the ferrule I portion 42, the color layering structure 53 including at least two colors, the color layering structure 53 being a length stamp 5 when the length of each color is one basic unit of a measurement standard. That is, when the length of each color is 1cm, the layered structure of two colors may be the length stamp 5; when the length of each color is 0.5cm, the layered structure formed by the four colors is the length stamp 5, which is shown in fig. 5; and each color needs to be different or distinctive.
Fourth embodiment of length stamp 5: a color layering structure 53 is provided on the ferrule I portion 42, and the color layering structure 53 includes at least two colors, wherein when the length of one color is the length of the measurement standard, the color is the length print 5. That is, when one of the colors has a length of 2cm, a second color is applied to both ends of the color for indicating the color having a length of 2cm, which is the length mark 5; or when there are three colors, the first color is 1.5cm, the second color is 0.5cm, the third color is applied to both ends of the adjacent first and second colors for indicating two colors having a length of 2cm, and the first and second colors are length marks 5, as shown with reference to fig. 6.
The second to fourth protocols described above enable the size of a polyp or adenoma to be measured, measuring the approximate size of the polyp or adenoma, and further facilitating further diagnosis by a physician.
The core rod 11 is provided with a scale 111, and when the ferrule ring 4 is contracted in the ferrule insertion rod 2, the position of the slip ring 12 does not exceed the zero scale 111 line of the scale 111 on the core rod 11; when the ferrule ring 4 is extended from the ferrule insertion rod 2, the end of the ferrule ring 4 extends beyond the end of the ferrule insertion rod 2 by a distance consistent with the reading of the scale 111 on the stem 11 by the slip ring 12. When the length mark 5 on the ferrule ring 4 is not convenient to observe clearly in the intestinal cavity, the ferrule ring 4 can also be extended for a certain distance through the structure, and the size of the polyp or adenoma sleeved by the ferrule ring 4 can be judged through the reading of the scale 111 of the sliding ring 12 on the core rod 11, so that the lesion tissues with different sizes can be easily coped with, and the operation efficiency is improved.
The two ferrule ropes 3 in the ferrule insertion rod 2 are connected end to form an n-shaped structure, one ends of the two ferrule ropes 3 are fixedly connected with two ends of the ferrule ring 4 respectively, and the other ends of the two ferrule ropes 3 are rotatably connected with the sliding ring 12; the slip ring 12 is provided with two adapter cylinders 121 through which two ferrule ropes 3 can pass, the ferrule ropes 3 can rotate in the adapter cylinders 121, and one end of the ferrule ropes 3 passing through the adapter cylinders 121 is provided with a driving part 6 which drives the ferrule ropes 3 to rotate so as to drive the ferrule ring 4 to rotate. In the above solution, the driving member 6 may be provided with one or two, and when the driving member 6 is provided with one, it may be provided at the end of any one of the looped ropes 3, and when the driving member 6 is provided with two, it may be provided at the ends of two looped ropes 3, respectively. When the device is used, after the snare loop 4 is used for sheathing the polyp or the adenoma, the snare loop 4 is enabled to be abutted against the intestinal wall, at the moment, the snare loop 4 can also rotate along with the rotation of the snare loop 3 in the process of rotating the snare loop in the switching cylinder 121 by controlling the driving piece 6, and the rotation of the snare loop 4 can intensively push the connection part of the polyp or the adenoma on the intestinal wall, so that the complete excision of the polyp or the adenoma is facilitated, the carcinogenesis of the polyp or the adenoma is terminated, and the colorectal cancer in the intermittent period caused by incomplete excision of the polyp is avoided.
one end of each of the two ferrule ropes 3 penetrating through the adapter cylinder 121 is coaxially provided with a rotating rod 31, and the two rotating rods 31 are rotatably connected in the adapter cylinder 121 through a bearing 32; the reason is that the loop rope 3 needs to penetrate through the loop insertion rod 2, so that the loop rope is thin in manufacture, and the added rotating rod 31 can enable the loop rope 3 to stably and flexibly rotate in the adapter cylinder 121, so that the loop ring 4 is favorable for effectively gathering the polyp or adenoma at the connection position on the intestinal wall. In addition, an adapter cylinder 121 can be arranged on the inner wall of one end of the ferrule insertion rod 2 close to the ferrule ring 4, so that the ferrule rope 3 can drive the ferrule ring 4 to rotate smoothly in the adapter cylinder 121.
The two ends of the two rotating rods 31 are respectively provided with a limiting block 33 for limiting the rotating rods 31 to axially move in the adapter cylinder 121, so that the slip ring 12 can drive the loop rope 3 to move in the process of sliding on the core rod 11. And the driving part 6 comprises a handwheel or a driving motor and can drive the loop rope 3 to rotate by being arranged on one or two rotating rods 31. The driving part 6 can be manually rotated by arranging a hand wheel or a driving motor.
The plurality of pushing convex teeth 43 are distributed on the circumferential side wall of the ferrule ring 4, the pushing convex teeth 43 extend along the length direction of the ferrule ring 4, the pushing convex teeth 43 are arranged on the circumferential outer side wall of the ferrule ring 4 in a strip-shaped structure, the friction force of the ferrule ring 4 during rotating and pushing polyps or adenomas on the intestinal wall is increased, and the polyps or adenomas can be completely cut off.
Furthermore, the pushing convex teeth 43 are wound into a spiral shape along the circumferential side wall of the ferrule ring 4, and the gaps among the plurality of pushing convex teeth 43 are kept consistent, so that the ferrule ring 4 further improves the gathering effect of intensively gathering the polyp or adenoma at the joint of the polyp or adenoma on the intestinal wall when rotating, and is further beneficial to completely cutting off the polyp or adenoma.
The looping loop 4 comprises a plurality of looping ropes 44, and all the looping ropes 44 are wound into a strand in a consistent direction. The plurality of looped ropes 44 wound into a strand can enable the looped ropes 44 to rotate more tightly due to certain gaps left among the looped ropes 44, and the whole looped ring 4 can rotate more tightly in the process that the looped ropes 3 drive the looped ring 4 to rotate, so that the looped ring 4 can push the polyp or adenoma on the joint of the intestinal wall in a concentrated manner.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
1. a gastrointestinal endoscope ring device with scales comprises a ring operating part (1) and a ring inserting rod (2), wherein the ring operating part (1) comprises a core rod (11) and a sliding ring (12) sleeved on the core rod (11), and the sliding ring (12) can slide on the core rod (11) in the axial direction of the core rod (11); the ferrule insertion rod (2) is arranged in a hollow structure, one end of the ferrule insertion rod is fixedly connected with the core rod (11), a ferrule rope (3) is inserted into the ferrule insertion rod (2), a ferrule ring (4) is arranged at one end of the ferrule rope (3) penetrating through the ferrule insertion rod (2), and the other end of the ferrule rope is connected with a sliding ring (12); in the process that the slip ring (12) slides from the tail end of the core rod (11) to one end connected with the ferrule insertion rod (2), the slip ring (12) pushes the ferrule rope (3) to enable the ferrule ring (4) at the end part to extend out of the ferrule insertion rod (2), and on the contrary, the slip ring (12) pulls the ferrule rope (3) to enable the ferrule ring (4) at the end part to retract into the ferrule insertion rod (2); the method is characterized in that: the ferrule ring (4) comprises a C-shaped ferrule C part (41) and an I-shaped ferrule I part (42), the ferrule C part (41) and the ferrule I part (42) are connected in a D-shaped structure at the tail end, a length mark (5) is arranged on the ferrule I part (42), and the length mark (5) is arranged from one end, far away from the ferrule rope (3), of the ferrule I part (42) and extends towards the other end;
the ferrule I part (42) comprises a thick rope part (51) and a thin rope part (52), the outer diameter of the thick rope part (51) is larger than that of the thin rope part (52), the thick rope part (51) and the thin rope part (52) are connected end to end, and when the length of the thin rope part (52) or the thick rope part (51) is a measuring standard length, the thin rope part (52) or the thick rope part (51) is a length mark (5);
When the thick rope part (51) and the thin rope part (52) are arranged in a plurality of numbers and are sequentially connected end to end at intervals, when one thick rope part (51) and/or one thin rope part (52) are both a basic unit of a measuring standard, the total length of the thick rope part (51) and the thin rope part (52) is a length mark (5);
The core rod (11) is provided with scales (111), and when the ferrule ring (4) is contracted in the ferrule insertion rod (2), the position of the slip ring (12) does not exceed the zero scale (111) line of the scales (111) on the core rod (11); when the ferrule ring (4) extends out of the ferrule insertion rod (2), the distance that the end part of the ferrule ring (4) extends out of the end part of the ferrule insertion rod (2) is consistent with the reading of the scale (111) of the slip ring (12) on the core rod (11);
the two ferrule ropes (3) in the ferrule insertion rod (2) are connected end to form an n-shaped structure, one ends of the two ferrule ropes (3) are fixedly connected with two ends of the ferrule ring (4), and the other ends of the two ferrule ropes (3) are rotatably connected with the sliding ring (12); the slip ring (12) is provided with two adapter cylinders (121) which are used for two ferrule ropes (3) to pass through respectively, the ferrule ropes (3) can rotate in the adapter cylinders (121), and one end of each ferrule rope (3) which passes through the adapter cylinders (121) is provided with a driving piece (6) which drives the ferrule ring (4) to rotate by driving the ferrule ropes (3) to rotate.
2. The scaled gastroenterology loop set of claim 1, wherein: one end of each of the two ferrule ropes (3) penetrating through the adapter cylinder (121) is coaxially provided with a rotating rod (31), the two rotating rods (31) are rotatably connected into the adapter cylinder (121) through a sleeve bearing (32), and two ends of each of the two rotating rods (31) are respectively provided with a limiting block (33) used for limiting the rotating rod (31) to axially move in the adapter cylinder (121); the driving piece (6) comprises a hand wheel or a driving motor, and can drive the loop rope (3) to rotate by being arranged on one or two rotating rods (31).
3. The scaled gastroenterology loop set of claim 2, wherein: the pushing device is characterized in that a plurality of pushing convex teeth (43) are distributed on the circumferential side wall of the ferrule ring (4), and the pushing convex teeth (43) extend along the length direction of the ferrule ring (4).
4. A scaled gastroscope snare according to claim 3, wherein: the pushing convex teeth (43) are wound into a spiral shape along the circumferential side wall of the ferrule ring (4), and gaps among the plurality of pushing convex teeth (43) are kept consistent.
5. The scaled gastroenterology loop set of claim 2, wherein: the looping ring (4) comprises a plurality of looping ropes (44), and all the looping ropes (44) are wound into a strand in the same direction.
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| CN201710279818.5A CN106955142B (en) | 2017-04-25 | 2017-04-25 | Gastrointestinal endoscope loop device with scales |
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| CN201710279818.5A CN106955142B (en) | 2017-04-25 | 2017-04-25 | Gastrointestinal endoscope loop device with scales |
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| CN106955142B true CN106955142B (en) | 2019-12-13 |
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| CN109009489B (en) * | 2018-08-01 | 2023-09-22 | 华中科技大学同济医学院附属协和医院 | Fixing device and fixing method for assisting in removing myxoma |
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