CN112220442A - Choledochoscope guider in laparoscopic surgery - Google Patents
Choledochoscope guider in laparoscopic surgery Download PDFInfo
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- CN112220442A CN112220442A CN202011201386.4A CN202011201386A CN112220442A CN 112220442 A CN112220442 A CN 112220442A CN 202011201386 A CN202011201386 A CN 202011201386A CN 112220442 A CN112220442 A CN 112220442A
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- sealing
- guide tube
- choledochoscope
- laparoscopic
- guide pipe
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- 238000002357 laparoscopic surgery Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 111
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 210000003815 abdominal wall Anatomy 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 3
- 210000001953 common bile duct Anatomy 0.000 abstract description 14
- 210000003228 intrahepatic bile duct Anatomy 0.000 abstract description 6
- 210000002603 extrahepatic bile duct Anatomy 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 abstract description 4
- 210000003445 biliary tract Anatomy 0.000 description 5
- 210000000013 bile duct Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000015163 Biliary Tract disease Diseases 0.000 description 1
- 208000005646 Pneumoperitoneum Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003459 common hepatic duct Anatomy 0.000 description 1
- 238000012277 endoscopic treatment Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
- A61B1/00137—End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
- A61B1/3132—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes for laparoscopy
Abstract
The invention discloses a choledochoscope guider in laparoscopy, which relates to the field of medical instruments and comprises a first guide tube, wherein one end of the first guide tube is connected with a second guide tube, a laparoscope poking card is movably sleeved outside the first guide tube, choledochoscopes are respectively communicated inside the first guide tube and the second guide tube, a first threaded head is integrally formed at the middle section of the outer part of the laparoscope poking card, a limiting cylinder is sleeved on the first threaded head, and a limiting plate is fixedly sleeved outside the limiting cylinder. The adjusting assembly can be used for conveniently adjusting the expansion degree of the cylindrical air bag by a user according to actual requirements, so that the second guide tube is always positioned on the inner wall of the common bile duct to fully expand the intrahepatic and extrahepatic bile ducts, the adjusting assembly is high in adjusting precision, the phenomenon that the cylindrical air bag expands beyond the standard can be avoided, and the clear visual field is further ensured.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a choledochoscope guider in laparoscopy.
Background
The biliary tract examination is an effective method for examining biliary tract diseases, and the apparatus thereof is divided into a hard type mirror and a soft type mirror, wherein the hard type mirror can only observe the common bile duct, and the soft type mirror can send the endoscope to the 2-3 grade hepatic duct, so the soft type biliary tract examination is mostly adopted at present. There are generally two ways in which a cholangioscope may enter the biliary system: the common bile duct is inserted after the common bile duct is cut in an open abdominal operation or a laparoscopic operation, and enters the bile duct through a T-shaped sinus after the biliary tract operation. In the biliary tract operation, more people need to know the conditions of the biliary duct system, such as: whether calculus, stenosis and tumor of intrahepatic bile duct exist; whether the lower segment of the common bile duct is unobstructed, whether calculi, stenosis or tumor exists or not can be examined by a choledochoscope in the operation.
Chinese patent discloses a choledochoscope guider (No. CN 106264426B) in laparoscopy, which can conveniently guide the choledochoscope to enter the bile duct through the abdominal wall, and can ensure that the choledochoscope always keeps good controllability in the process of performing endoscopic treatment operation, but in the using process of the guider, although a cylindrical air bag can fix the guider on the inner wall of a common bile duct, and can also prevent injected saline from flowing into the abdominal cavity through the incision of the common bile duct to fully expand the intrahepatic and extrahepatic bile ducts, the expansion degree of the cylindrical air bag is difficult to be accurately controlled, the expansion degree of the cylindrical air bag does not reach the standard, the effect of fully expanding the intrahepatic and extrahepatic bile ducts is difficult to be achieved, when the expansion degree of the cylindrical air bag is larger, the notch of the common bile duct is increased, and meanwhile, the rubber spacer added in the patent can play a role of preventing gas leakage, but the sealing mode is single, so that the sealing effect is not ideal. Accordingly, those skilled in the art have provided a choledochoscope introducer for laparoscopy to solve the problems set forth in the background art as described above.
Disclosure of Invention
The invention aims to: in order to solve the above-mentioned problems in the background art, a choledochoscope guide for laparoscopy is provided.
In order to achieve the purpose, the invention provides the following technical scheme: a cholangioscope guider in laparoscopic surgery comprises a first guide tube, wherein one end of the first guide tube is connected with a second guide tube, a laparoscopic stabbing card is sleeved on the outer portion of the first guide tube in a movable mode, the insides of the first guide tube and the second guide tube are communicated with cholangioscopes, a first threaded head is integrally formed at the middle section of the outer portion of the laparoscopic stabbing card, a limiting tube is sleeved on the first threaded head, a limiting plate is fixedly sleeved on the outer portion of the limiting tube, a silica gel pad is fixedly connected to the side wall of the limiting plate, an abdominal wall is attached to the silica gel pad, a gas pipe is further installed inside the laparoscopic stabbing card, one end of the gas pipe is connected with an adjusting component, the other end of the gas pipe is connected with a cylindrical air bag, the adjusting component comprises a gas outlet, a piston, a barrel body, a threaded rod and a handle, one end of the barrel body, a threaded rod in threaded connection with the barrel is embedded into the other end of the barrel, a handle is vertically and fixedly connected to one end of the threaded rod along the length direction of the threaded rod, a piston is rotatably connected to the other end of the threaded rod along the length direction of the threaded rod through a bearing, scale marks are further arranged on the front surface of the barrel, a liner pipe is further sleeved outside the cylindrical air bag, sealing assemblies are respectively arranged inside the first guide pipe and the second guide pipe and comprise sealing plugs, first sealing plates, placing grooves, sealing balls and second sealing plates, the sealing plugs are fixedly connected inside the second guide pipe, the placing grooves are horizontally formed in the sealing plugs, the sealing balls are fixedly connected inside the placing grooves, the first sealing plates and the second sealing plates are fixedly connected to positions, close to the two sides of the sealing balls, of the placing grooves respectively, and one end of the first guide pipe is provided with a clamping groove, the inside joint in joint groove has the joint piece, the rigid coupling has first sealing washer on the joint piece, the one end edge of second guiding tube still the block has the second sealing washer, and the one end center department of second guiding tube still the rigid coupling has the second thread head.
Preferably, one end of the gas conveying pipe is connected to the gas outlet, and the cylinder body is made of glass fiber reinforced plastic.
Preferably, the piston is of a cuboid structure, and the piston is attached to the inner wall of the cylinder.
As a still further scheme of the invention: the inside of first closing plate, sealed ball and second closing plate all transversely is seted up and is located same water flat line and the recess that the size equals.
Preferably, the first sealing plate and the second sealing plate are both circular truncated cone-shaped, and the first sealing plate and the second sealing plate are both rubber members.
Preferably, one end of the choledochoscope passes through the interiors of the first sealing plate, the sealing ball and the second sealing plate and extends to the exterior of the second guide tube.
Preferably, the first guide tube and the second guide tube are made of the same material, and are connected through threads.
Preferably, the diameter of the first sealing ring is equal to the diameter of the first guide pipe, the diameter of the second sealing ring is equal to the diameter of the second guide pipe, and the diameters of the first sealing ring and the second sealing ring are equal.
Preferably, the number of the clamping grooves and the clamping blocks is four, and the clamping grooves are matched with the clamping blocks.
Compared with the prior art, the invention has the beneficial effects that:
1. the adjusting assembly can be used for conveniently adjusting the expansion degree of the cylindrical air bag by a user according to actual needs, so that the second guide tube is always positioned on the inner wall of the common bile duct to fully expand the intrahepatic and extrahepatic bile ducts, the adjusting assembly is high in adjusting precision, the phenomenon that the cylindrical air bag expands beyond the standard can be avoided, and the clear visual field is further ensured;
2. according to the invention, the sealing performance between the choledochoscope and the guide tube can be improved through the sealing assembly, and the multilayer sealing mode is adopted, so that the gas leakage can be effectively prevented, and the sealing performance is more excellent compared with the traditional rubber spacer;
3. the invention divides the guide pipes into two parts, which can be conveniently replaced and maintained, when one of the guide pipes is damaged, only one group of the guide pipes needs to be replaced, thereby reducing the maintenance cost, and the corresponding sealing rings are arranged at one end of the first guide pipe and one end of the second guide pipe, and are fastened by adopting a thread mode, thereby greatly increasing the connection sealing performance between the first guide pipe and the second guide pipe, and being more convenient to use.
Drawings
FIG. 1 is a schematic structural view of a choledochoscope introducer in laparoscopy;
FIG. 2 is a schematic view showing the structure of an adjusting assembly in a laparoscopic choledochoscope guide;
FIG. 3 is a schematic structural view of a position-limiting cylinder in a choledochoscope introducer in laparoscopy;
FIG. 4 is a schematic structural view of a silicone pad in a choledochoscope introducer in laparoscopy;
FIG. 5 is a schematic view of a seal assembly in a laparoscopic choledochoscope introducer;
FIG. 6 is a schematic structural view of a first sealing plate of a choledochoscope introducer in laparoscopy;
FIG. 7 is a schematic view showing a structure of a groove in a choledochoscope guide in laparoscopy;
FIG. 8 is a schematic structural view of a second screw head in a choledochoscope introducer in laparoscopy;
fig. 9 is a schematic structural view of a clamping block in a choledochoscope introducer in laparoscopy.
In the figure: 1. a choledochoscope; 2. a first guide tube; 3. a laparoscope stab card; 4. a second guide tube; 5. a common bile duct; 6. a cylindrical air bag; 7. the abdominal wall; 8. a gas delivery pipe; 9. an adjustment assembly; 10. an air outlet; 11. a piston; 12. a barrel; 13. a threaded rod; 14. a handle; 15. a first thread start; 16. a limiting plate; 17. a limiting cylinder; 18. a silica gel pad; 19. a sealing plug; 20. a first sealing plate; 21. a placement groove; 22. a sealing ball; 23. a second sealing plate; 24. a seal assembly; 25. a groove; 26. a first seal ring; 27. a second seal ring; 28. a second thread start; 29. a clamping groove; 30. and a clamping block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.
Referring to fig. 1-9, a choledochoscope guider in laparoscopy comprises a first guide tube 2, a second guide tube 4 is connected to one end of the first guide tube 2, a laparoscope poking card 3 is movably sleeved outside the first guide tube 2, the first guide tube 2 and the second guide tube 4 are made of the same material, the first guide tube 2 and the second guide tube 4 are connected through a screw thread, the first guide tube 2 and the second guide tube 4 are both communicated with a choledochoscope 1, a first screw head 15 is integrally formed at the middle section of the outside of the laparoscope poking card 3, a limiting tube 17 is sleeved on the first screw head 15, a limiting plate 16 is fixedly sleeved outside the limiting tube 17, a silica gel pad 18 is further fixedly connected to the side wall of the limiting plate 16, an abdominal wall 7 is attached to the silica gel pad 18, a gas pipe 8 is further installed inside the laparoscope poking card 3, and an adjusting assembly 9 is connected to one end of the gas pipe 8, the other end of the gas pipe 8 is connected with a cylindrical airbag 6, the adjusting component 9 comprises a gas outlet 10, a piston 11, a cylinder 12, a threaded rod 13 and a handle 14, one end of the cylinder 12 is communicated with the gas outlet 10, the other end of the cylinder 12 is embedded with the threaded rod 13 in threaded connection with the cylinder 12, one end of the threaded rod 13 is vertically and fixedly connected with the handle 14 along the length direction of the threaded rod 13, the other end of the threaded rod 13 is rotatably connected with the piston 11 along the length direction of the threaded rod through a bearing, the front surface of the cylinder 12 is also provided with scale marks, a liner pipe 5 is sleeved outside the cylindrical airbag 6, one end of the gas pipe 8 is connected with the gas outlet 10, the cylinder 12 is a component made of glass fiber reinforced plastic, the piston 11 is of a cuboid structure, the piston 11 is attached to the inner wall of the cylinder 12, and the expansion degree of the cylindrical airbag 6 can, therefore, the second guide tube 4 is always positioned on the inner wall of the common bile duct 5, the intrahepatic and extrahepatic bile ducts are fully expanded, the adjusting assembly 9 has high adjusting precision, the phenomenon that the cylindrical air bag 6 expands to exceed the standard can not occur, and the definition of the visual field is further ensured.
In fig. 5, 6 and 7: the sealing assemblies 24 are respectively installed inside the first guide pipe 2 and the second guide pipe 4, each sealing assembly 24 comprises a sealing plug 19, a first sealing plate 20, a placing groove 21, a sealing ball 22 and a second sealing plate 23, the sealing plug 19 is fixedly connected inside the second guide pipe 4, the placing groove 21 is horizontally arranged inside the sealing plug 19, the sealing ball 22 is fixedly connected inside the placing groove 21, the first sealing plate 20 and the second sealing plate 23 are respectively fixedly connected inside the placing groove 21 close to two sides of the sealing ball 22, grooves 25 which are located on the same horizontal line and have the same size are transversely arranged inside the first sealing plate 20, the sealing ball 22 and the second sealing plate 23, the first sealing plate 20 and the second sealing plate 23 are both in a round table shape, the first sealing plate 20 and the second sealing plate 23 are both made of rubber materials, one end of the choledochoscope 1 penetrates through the first sealing plate 20, the sealing ball 22 and the inside of the second sealing plate 23 and extends to the outside of the second guide pipe 4, can increase the sealing performance between cholangioscope 1 and the guide tube through seal assembly 24, adopt the sealed mode of multilayer formula moreover, can play the effect that prevents gas leakage effectively, compare in traditional rubber septum, sealing performance is more excellent.
In fig. 8 and 9: one end of the first guide pipe 2 is provided with a clamping groove 29, a clamping block 30 is clamped in the clamping groove 29, a first sealing ring 26 is fixedly connected onto the clamping block 30, a second sealing ring 27 is clamped at the edge of one end of the second guide pipe 4, a second screw head 28 is fixedly connected to the center of one end of the second guide pipe 4, the diameter of the first sealing ring 26 is equal to that of the first guide pipe 2, the diameter of the second sealing ring 27 is equal to that of the second guide pipe 4, the diameters of the first sealing ring 26 and the second sealing ring 27 are equal, the number of the clamping grooves 29 and the clamping blocks 30 is four, the clamping grooves 29 are matched with the clamping blocks 30, the guide pipes are divided into two parts, the two parts can be conveniently replaced and maintained, when one guide pipe is damaged, only one group of the guide pipes needs to be replaced, the maintenance cost is reduced, and corresponding sealing rings are respectively arranged at one ends of the first guide pipe 2 and the second guide pipe 4, meanwhile, the two are fastened in a threaded mode, so that the connection sealing performance between the two can be greatly increased, and the use is more convenient.
The working principle of the invention is as follows: the user firstly puts the clamping block 30 into the clamping groove 29 and clamps the clamping block, then clamps the second sealing ring 27 on the second guide pipe 4, finally aligns the second screw head 28 with the inside of the first guide pipe 2 and screws the clamping block, thereby fastening the first guide pipe 2 and the second guide pipe 4, and can increase the sealing performance between the first sealing ring 26 and the second sealing ring 27, so the guide pipes are divided into two parts, the two parts can be conveniently replaced and maintained, when one of the guide pipes is damaged, only one group of the guide pipes needs to be replaced, the maintenance cost is reduced, and the corresponding sealing rings are respectively arranged at one end of the first guide pipe 2 and one end of the second guide pipe 4, and simultaneously, the two parts are fastened by adopting a screw thread mode, the connection sealing performance between the two parts can be greatly increased, the use is more convenient, then the user inserts one end of the choledochoscope 1 into the first guide pipe 2, then sequentially passes through the second sealing plate 23, the sealing ball 22 and the first sealing plate 20, and finally extends out through one end of the second guide tube 4, and because the laparoscopic surgery needs to be performed with artificial pneumoperitoneum, two groups of sealing components 24 are added to mainly play a role of preventing gas from leaking out, so the sealing performance between the choledochoscope 1 and the guide tube can be increased through the sealing components 24, and the multilayer sealing mode is adopted to effectively play a role of preventing gas from leaking out, compared with the traditional rubber spacer, the sealing performance is more excellent, then a user screws the first thread head 15 in the limiting cylinder 17, and the limiting plate 16 and the limiting cylinder 17 are added on the original laparoscopic stab card 3, and the contact area of the limiting plate 16 is increased, so that the firm degree of connection between the first guide tube 2 and the abdominal wall 7 can be greatly increased, and the looseness can be prevented, and the silica gel pad 18 is more comfortable after contacting the abdominal wall 7, the uncomfortable feeling of the patient is reduced, finally the user holds the handle 14 to rotate positively, at the moment, the threaded rod 13 can be driven to rotate positively, the piston 11 is driven to move leftwards, along with the continuous left movement of the piston 11, the cylindrical air bag 6 is inflated through the air pipe 8, the cylindrical air bag 6 is inflated at the moment, and similarly, when the user holds the handle 14 to rotate reversely, the cylindrical air bag 6 is shriveled, and the inflation amount can be accurately controlled through the scale marks on the surface of the cylinder body 12, so that the user can conveniently adjust the inflation degree of the cylindrical air bag 6 according to the actual requirement through the adjusting component 9, the second guide pipe 4 is always positioned on the inner wall of the common bile duct 5, the inner and outer bile ducts of the liver are fully expanded, the adjusting component 9 has high adjusting precision, and the phenomenon that the cylindrical air bag 6, thereby ensuring the clear visual field.
In summary, when the guide is operated, the guide enters through the position of the laparoscope stab card 3, wherein the tail end of the guide is placed in the common bile duct 5, the tail end of the guide is fixed on the inner wall of the common bile duct 5 through the cylindrical air bag 6, and then the choledochoscope 1 enters the guide to perform corresponding choledochoscopy.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The cholangioscope guider in laparoscopic surgery comprises a first guide tube (2) and is characterized in that one end of the first guide tube (2) is connected with a second guide tube (4), a laparoscopic stabbing card (3) is sleeved outside the first guide tube (2), the first guide tube (2) and the second guide tube (4) are both communicated with a cholangioscope (1), a first threaded head (15) is integrally formed at the middle section of the outside of the laparoscopic stabbing card (3), a limiting barrel (17) is sleeved on the first threaded head (15), a limiting plate (16) is fixedly sleeved outside the limiting barrel (17), a silica gel pad (18) is fixedly connected to the side wall of the limiting plate (16), an abdominal wall (7) is laminated on the silica gel pad (18), and an air conveying pipe (8) is further installed inside the laparoscopic stabbing card (3), one end of the gas conveying pipe (8) is connected with an adjusting component (9), the other end of the gas conveying pipe (8) is connected with a cylindrical airbag (6), the adjusting component (9) comprises a gas outlet (10), a piston (11), a barrel (12), a threaded rod (13) and a handle (14), one end of the barrel (12) is communicated with the gas outlet (10), the other end of the barrel (12) is embedded with the threaded rod (13) in threaded connection with the barrel (12), one end of the threaded rod (13) is perpendicularly fixedly connected with the handle (14) in the length direction of the threaded rod, the other end of the threaded rod (13) is rotatably connected with the piston (11) through a bearing in the length direction of the threaded rod, the front surface of the barrel (12) is further provided with scale marks, a trunk pipe (5) is further sleeved outside the cylindrical airbag (6), and sealing components (24) are respectively installed inside the first guide pipe (2) and the second guide pipe (4), the sealing assembly (24) comprises a sealing plug (19), a first sealing plate (20), a placing groove (21), a sealing ball (22) and a second sealing plate (23), the sealing plug (19) is fixedly connected inside the second guide pipe (4), a placing groove (21) is horizontally arranged in the sealing plug (19), a sealing ball (22) is fixedly connected in the placing groove (21), and a first sealing plate (20) and a second sealing plate (23) are respectively and fixedly connected in the placing groove (21) close to the two sides of the sealing ball (22), one end of the first guide pipe (2) is provided with a clamping groove (29), a clamping block (30) is clamped in the clamping groove (29), a first sealing ring (26) is fixedly connected to the clamping block (30), a second sealing ring (27) is clamped at the edge of one end of the second guide pipe (4), and a second thread head (28) is fixedly connected at the center of one end of the second guide pipe (4).
2. The laparoscopic choledochoscope introducer of claim 1, wherein: one end of the gas pipe (8) is connected to the gas outlet (10), and the cylinder body (12) is made of glass fiber reinforced plastic.
3. The laparoscopic choledochoscope introducer of claim 1, wherein: the piston (11) is of a cuboid structure, and the inner walls of the piston (11) and the cylinder body (12) are attached to each other.
4. The laparoscopic choledochoscope introducer of claim 1, wherein: the first sealing plate (20), the sealing ball (22) and the second sealing plate (23) are all transversely provided with grooves (25) which are located on the same horizontal line and are equal in size.
5. The laparoscopic choledochoscope introducer of claim 1, wherein: the first sealing plate (20) and the second sealing plate (23) are both in a circular truncated cone shape, and the first sealing plate (20) and the second sealing plate (23) are both rubber members.
6. The laparoscopic choledochoscope introducer of claim 1, wherein: one end of the choledochoscope (1) passes through the interiors of the first sealing plate (20), the sealing ball (22) and the second sealing plate (23) and extends to the exterior of the second guide tube (4).
7. The laparoscopic choledochoscope introducer of claim 1, wherein: the first guide pipe (2) and the second guide pipe (4) are made of the same material in different sizes, and the first guide pipe (2) is connected with the second guide pipe (4) through threads.
8. The laparoscopic choledochoscope introducer of claim 1, wherein: the diameter of the first sealing ring (26) is equal to that of the first guide pipe (2), the diameter of the second sealing ring (27) is equal to that of the second guide pipe (4), and the diameters of the first sealing ring (26) and the second sealing ring (27) are equal.
9. The laparoscopic choledochoscope introducer of claim 1, wherein: the number of the clamping grooves (29) and the number of the clamping blocks (30) are four, and the clamping grooves (29) are matched with the clamping blocks (30).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011201386.4A CN112220442A (en) | 2020-11-02 | 2020-11-02 | Choledochoscope guider in laparoscopic surgery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011201386.4A CN112220442A (en) | 2020-11-02 | 2020-11-02 | Choledochoscope guider in laparoscopic surgery |
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| CN112220442A true CN112220442A (en) | 2021-01-15 |
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