CN111773519A - Double-cavity bile pancreatic duct radiography conduit - Google Patents
Double-cavity bile pancreatic duct radiography conduit Download PDFInfo
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- CN111773519A CN111773519A CN202010739341.6A CN202010739341A CN111773519A CN 111773519 A CN111773519 A CN 111773519A CN 202010739341 A CN202010739341 A CN 202010739341A CN 111773519 A CN111773519 A CN 111773519A
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- 210000000277 pancreatic duct Anatomy 0.000 title claims abstract description 39
- 238000002601 radiography Methods 0.000 title claims abstract description 18
- 210000000941 bile Anatomy 0.000 title claims description 4
- 210000000013 bile duct Anatomy 0.000 claims abstract description 37
- 239000002872 contrast media Substances 0.000 claims abstract description 9
- 238000002583 angiography Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000009606 cholecystography Methods 0.000 claims 2
- 230000009977 dual effect Effects 0.000 claims 2
- 238000002627 tracheal intubation Methods 0.000 abstract description 12
- 210000005070 sphincter Anatomy 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 210000004877 mucosa Anatomy 0.000 abstract 1
- 230000002183 duodenal effect Effects 0.000 description 17
- 238000007459 endoscopic retrograde cholangiopancreatography Methods 0.000 description 5
- 210000004185 liver Anatomy 0.000 description 5
- 210000000232 gallbladder Anatomy 0.000 description 4
- 206010033645 Pancreatitis Diseases 0.000 description 3
- 210000003445 biliary tract Anatomy 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 210000000496 pancreas Anatomy 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 241000283070 Equus zebra Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 206010051341 Bile duct stenosis Diseases 0.000 description 1
- 206010004637 Bile duct stone Diseases 0.000 description 1
- 201000009331 Choledocholithiasis Diseases 0.000 description 1
- 206010013554 Diverticulum Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010033647 Pancreatitis acute Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 206010071229 Procedural haemorrhage Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 201000003229 acute pancreatitis Diseases 0.000 description 1
- 210000001953 common bile duct Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001198 duodenum Anatomy 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 208000020694 gallbladder disease Diseases 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002350 laparotomy Methods 0.000 description 1
- 208000019423 liver disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 208000024691 pancreas disease Diseases 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 210000001187 pylorus Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/091—Guide wires having a lumen for drug delivery or suction
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides a double-cavity bile duct pancreatic duct radiography conduit. The contrast agent injection tube comprises a first tube section, a second tube section and a third tube section, wherein the first tube section is generally conical, the front end of the first tube section is spherical, a first side hole and a second side hole which are oppositely arranged are formed in the side wall of the conical section of the first tube section, the second tube section is a double-channel tube, the third tube section is a double-channel tube, and a contrast agent injection connector is arranged on the side wall of the third tube section. When the biliary pancreatography catheter works, the left cavity and the right cavity of the biliary pancreatography catheter can realize selective bile duct or pancreatic duct intubation. The head end of the tube body is spherical and has no damage to papillary mucosa, two sides of the tube body at the head end are provided with two channels of a bile duct and a pancreatic duct cannula, a guide wire is inserted through the bile duct channel, and the conical head end of the drainage tube can block the opening of the pancreatic duct sphincter and reduce the probability of the guide wire entering the pancreatic duct; the guide wire is inserted into the pancreatic duct channel, and the conical head end of the drainage tube can block the opening of the sphincter of the bile duct, so that the probability of the guide wire entering the bile duct is reduced.
Description
Technical Field
The invention relates to the technical field of biliary-pancreatic duct medical instruments, in particular to a double-lumen biliary-pancreatic duct radiography catheter.
Background
With the continuous development of endoscopic technology and the continuous improvement of accessories thereof, the duodenoscope technology (ERCP) is becoming an important measure for diagnosing and treating diseases of liver, gallbladder and pancreas at present, including choledocholithiasis, bile duct injury, bile duct stenosis, biliary tract complications after liver transplantation and the like. Compared with the traditional laparotomy, the technique has the advantages of small wound, high safety factor, quick recovery and the like. The patient can observe under direct vision, and can detect diseases of liver, gallbladder and pancreas which can not be detected by conventional examination of liver, gallbladder, spleen and pancreas, ultrasound, magnetic resonance and the like, and treat the diseases simultaneously, such as duodenal papillary inflammation, papillary stenosis, diverticulum beside the papilla, overlong duodenal papillary, biliary-pancreatic confluence abnormality and the like.
Although the ERCP treatment of the liver, gallbladder and pancreas diseases has the advantages, the operation difficulty coefficient is relatively high. The key to the success of ERCP surgery is the successful selective intubation of the pancreaticobiliary duct, and some patients directly fail ERCP surgery due to intubation failure. Repeated duodenal papilla intubation not only prolongs the operation time, increases the operation risk, but also easily induces acute pancreatitis, further increases the treatment cost, prolongs the hospitalization time, brings great pain to patients, and has a certain mortality. Clinically, to improve the success rate of papillary intubation in ERCP surgery, a guide wire-assisted angiography catheter is often used for bile duct intubation or pancreatic duct intubation.
For example, the biliary tract catheter of WO9323106a1, the biliary tract angiography catheter of CN 209253911U, etc., the currently clinically applied biliary and pancreatic angiography catheters are single-channel drainage tubes, the drainage tube body is cylindrical, the head end is frustum-shaped, and the drainage tube is opened at the head end of the catheter. When the bile duct is intubated, the radiography conduit is firstly inserted into the common channel of the duodenal papillary sphincter, then the zebra guide wire is placed into the bile duct or the pancreatic duct through the radiography conduit, and the guide wire is placed into the bile duct or the pancreatic duct by adjusting the direction of the head end of the radiography conduit. The contrast catheter has the following defects: 1. the opening at the head end of the radiography conduit is a circular plane, the radiography conduit is difficult to be inserted into a common duodenal papilla channel, the radiography conduit is difficult to be directly placed into a bile duct or a pancreatic duct, particularly for the duodenal papilla with a single hole opening, and repeated intubation easily causes edema of the duodenal papilla, increases the intubation difficulty and the incidence rate of complications such as intraoperative hemorrhage, postoperative pancreatitis and the like; 2. after the radiography conduit is placed into the common duodenal papilla channel, the opening of the radiography conduit is easily blocked by the bile duct pancreatic duct diaphragm or muscle interval, so that the guide wire is difficult to enter the bile duct or the pancreatic duct, the depth of the radiography conduit entering the common duodenal papilla channel needs to be repeatedly adjusted, and the operation time is prolonged; 3. after the radiography conduit is placed into a common duodenal papilla channel, the direction of the guide wire entering cannot be controlled, the guide wire enters a pancreatic duct when a bile duct is inserted, and the guide wire enters a bile duct when the bile duct is inserted, so that the success rate of selective bile-pancreatic duct insertion is reduced, the operation time is prolonged, duodenal papilla edema is easily caused, and the incidence rate of complications such as hemorrhage in the operation and post-operation pancreatitis is increased.
Disclosure of Invention
In view of the above-mentioned technical problems, a double-lumen cholangiopancreatography catheter is provided. The technical means adopted by the invention are as follows:
a double-cavity bile duct pancreatic duct radiography conduit, which comprises a first conduit section, a second conduit section and a third conduit section,
the first pipe section is generally conical, the front end of the first pipe section is spherical, a first side hole and a second side hole which are oppositely arranged are formed in the side wall of the conical section of the first pipe section, a first through hole and a second through hole are formed in the bottom surface of the conical section, the first side hole is connected with the first through hole to form a first channel, and the second side hole is connected with the second through hole to form a second channel;
the second pipe section is a double-channel pipe, and a third channel connected with the first through hole and a fourth channel connected with the second through hole are formed in the second pipe section;
the third pipe section is a double-channel pipe, a fifth channel communicated with the third channel and a sixth channel connected with the fourth channel are formed in the third pipe section, a first joint is arranged on the side wall of the third pipe section, a second joint is arranged on the other side wall of the third pipe section, the first joint is connected with the fifth channel, the second joint is connected with the sixth channel, the tail end of the fifth channel is a first guide wire inlet, and the tail end of the sixth channel is a second guide wire inlet;
in a working state, the first side hole of the first pipe section is over against a bile duct or a pancreatic duct, the second side hole is over against the pancreatic duct or the bile duct, and when the guide wire is introduced into the first guide wire inlet, the second connector is used for injecting a contrast medium; when the second guide wire inlet is communicated with the guide wire, the first connector is used for injecting contrast medium; the second tube segment enters the body and the third tube segment is located outside the body.
Furthermore, the first side hole and the second side hole are arranged at the same height, and the distance from the top end of the head to the top end of the head is 2-4 mm.
Further, the surface of the first pipe section is coated with a hydrophilic coating.
Further, the outer wall of the third pipe section is also provided with a pipe rotating mechanism fixed on the third pipe section for rotating the pipe.
Further, the outer diameters of the second pipe section and the third pipe section and the outer diameter of the bottom surface of the first pipe section are the same and are all 7 Fr.
Further, there is a portion where the third channel and the fourth channel intersect, the length of the intersection line is smaller than the outer diameter of the guide wire, and the specifications of the fifth channel and the sixth channel are the same.
Further, the diameter of the third channel, the fourth channel, the fifth channel and the sixth channel is 1 mm.
Further, the tapered head end is 10mm in length.
The invention has the following advantages:
1. the front end of the invention is conical, the head end of the tube body is spherical, the surface of the tube body is coated with a hydrophilic coating, the tube body can more easily enter a common duodenal papilla channel or directly enter a bile duct and a pancreatic duct, and the mucous membrane of the papilla is not damaged;
2. according to the drainage tube, the two channels of the bile duct and the pancreatic duct intubation tube are arranged on the two sides of the tube body at the head end, the two channels of the tube body are opened on the side wall of the conical head end, the guide wire is inserted through the bile duct channel, the conical head end of the drainage tube can block the opening of the pancreatic duct sphincter, and the probability that the guide wire enters the pancreatic duct is reduced; a guide wire is inserted into the pancreatic duct channel, the opening of the sphincter of the bile duct can be blocked by the conical head end of the drainage tube, the probability of the guide wire entering the bile duct is reduced, and then selective bile duct or pancreatic duct intubation is realized;
3. the double channels in the tube body are designed in a double-circle cross mode, so that the outer diameter of the drainage tube is reduced while the guide wire does not enter the adjacent channel.
4. The catheter rotating handle is arranged at the near end of the catheter body, so that the angles of the planes of the two side holes at the head end of the catheter and the plane of the bile duct are controlled, and the success rate of guide wire intubation is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the general structure of the present invention.
FIG. 2 is a cross-sectional view of a third pipe segment in an embodiment of the present invention.
Fig. 3 is a state diagram of the present invention in an operating state.
In the figure: 11. a spherical front end of the first tube section; 12. a first tube section conical body; 13. a first channel; 14. a second channel; 2. a second tube section; 21. a third channel; 22. a fourth channel; 3. a third tube section; 31. a fifth channel; 32. a sixth channel; 33. a first joint; 33. a catheter rotation mechanism; 35. a second joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
As shown in fig. 1 and fig. 2, the embodiment of the invention discloses a double-lumen cholangiopancreatography catheter, which comprises a first tube section, a second tube section and a third tube section,
the general body 12 of the first pipe section is conical, the front end 11 of the first pipe section is spherical, a first side hole and a second side hole which are oppositely arranged are formed in the side wall of the conical section of the first pipe section, a first through hole and a second through hole are formed in the bottom surface of the conical section, the first side hole is connected with the first through hole to form a first channel 13, the second side hole is connected with the second through hole to form a second channel 14, and the spherical head end of the first pipe section can easily enter a common duodenal papilla channel or directly enter a bile duct and a pancreatic duct without damaging papilla mucous membranes;
the second pipe section 2 is a double-channel pipe, and a third channel 21 connected with the first through hole and a fourth channel 22 connected with the second through hole are formed in the second pipe section;
the third pipe section 3 is a double-channel pipe, a fifth channel 31 communicated with the third channel 21 and a sixth channel 32 connected with the fourth channel 22 are formed in the third pipe section, a first joint 33 is arranged on the side wall of the third pipe section, a second joint 35 is arranged on the other side wall of the third pipe section, the first joint is connected with the fifth channel, the second joint is connected with the sixth channel, the tail end of the fifth channel is a first guide wire inlet, and the tail end of the sixth channel is a second guide wire inlet;
in a working state, the first side hole of the first pipe section is over against a bile duct or a pancreatic duct, the second side hole is over against the pancreatic duct or the bile duct, and when the guide wire is introduced into the first guide wire inlet, the second connector is used for injecting a contrast medium; when the second guide wire inlet is communicated with the guide wire, the first connector is used for injecting contrast medium; the second tube segment enters the body and the third tube segment is located outside the body.
In a preferred embodiment, the first side hole and the second side hole have the same opening position height, and are both 2-4 mm, preferably 3mm in the embodiment, away from the top end of the head.
As a preferred embodiment, the first tube section surface is coated with a hydrophilic coating.
In a preferred embodiment, the outer wall of the third pipe section is further provided with a pipe rotating mechanism 33 fixed thereon for rotating the pipe, and the pipe rotating mechanism is made of an abrasion-resistant material different from the material of the third pipe section or is of a handle structure convenient for grasping.
In a preferred embodiment, the outer diameters of the second pipe section and the third pipe section and the outer diameter of the bottom surface of the first pipe section are the same and are all 7 Fr.
In order to reduce the outer diameter of the drainage tube while preventing the guide wire from entering the adjacent channel, as a preferred embodiment, the third channel and the fourth channel have intersecting parts, and the length of the intersecting line is smaller than the outer diameter of the guide wire, for example, a zebra guide wire is selected, the diameter of the guide wire has specifications of 0.635mm and 0.828mm, and the length of the intersecting line can be ensured to be smaller than the diameter of the corresponding guide wire which is selected. The specifications of the fifth channel and the sixth channel are the same.
The specifications of the third channel, the fourth channel, the fifth channel and the sixth channel can be the same or different, the main body is a regular cylindrical cavity or a cylindrical cavity with an oval cross section, and as a preferred embodiment, the cross section of the third channel, the fourth channel, the fifth channel and the sixth channel in the embodiment is a circle, and the diameter of the cross section is 1 mm.
In a preferred embodiment, the tapered tip is 10mm in length.
The specific application method of this example is as follows: the duodenoscope is placed through the mouth and enters the stomach through the esophagus, passes through the pylorus and enters the duodenum, and the duodenal papilla of the duct is searched.
The biliary pancreatic duct radiography catheter is placed through a duodenoscope forceps channel, holes on two sides of the head end of the drainage tube are respectively positioned on the left side and the right side of a visual field by rotating a handle, the radiography catheter enters a common duodenal papilla channel through an opening of a duodenal papilla, and contrast agent is injected through a first connector or a second connector to simultaneously develop the shapes of a bile duct and a pancreatic duct.
Adjusting the direction of the head end of the contrast catheter in the common channel of the duodenal papilla, sliding the contrast catheter into the pancreatic duct in the direction of 1 o 'clock or sliding the contrast catheter into the common bile duct in the direction of 11 o' clock, injecting contrast through the pancreatic duct joint after the catheter enters the bile duct, and displaying the shape of the bile duct or the pancreatic duct by the pancreatic duct in the same way.
When the direct placement of the angiography catheter fails, as shown in fig. 3, the elbow guide wire is placed through a bile duct passage port (the tail end of the fifth passage) at the tail part of the angiography catheter, and the guide wire enters the bile duct through the first side hole; and (3) placing an elbow guide wire through a pancreatic duct channel port (the tail end of the sixth channel) at the tail part of the angiography catheter, and enabling the guide wire to enter the pancreatic duct through the second side hole.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A double-cavity bile pancreatic duct radiography conduit is characterized in that the conduit comprises a first pipe section, a second pipe section and a third pipe section,
the first pipe section is generally conical, the front end of the first pipe section is spherical, a first side hole and a second side hole which are oppositely arranged are formed in the side wall of the conical section of the first pipe section, a first through hole and a second through hole are formed in the bottom surface of the conical section, the first side hole is connected with the first through hole to form a first channel, and the second side hole is connected with the second through hole to form a second channel;
the second pipe section is a double-channel pipe, and a third channel connected with the first through hole and a fourth channel connected with the second through hole are formed in the second pipe section;
the third pipe section is a double-channel pipe, a fifth channel communicated with the third channel and a sixth channel connected with the fourth channel are formed in the third pipe section, a first joint is arranged on the side wall of the third pipe section, a second joint is arranged on the other side wall of the third pipe section, the first joint is connected with the fifth channel, the second joint is connected with the sixth channel, the tail end of the fifth channel is a first guide wire inlet, and the tail end of the sixth channel is a second guide wire inlet;
in a working state, the first side hole of the first pipe section is over against a bile duct or a pancreatic duct, the second side hole is over against the pancreatic duct or the bile duct, and when the guide wire is introduced into the first guide wire inlet, the second connector is used for injecting a contrast medium; when the second guide wire inlet is communicated with the guide wire, the first connector is used for injecting contrast medium; the second tube segment enters the body and the third tube segment is located outside the body.
2. The dual-chamber bile pancreatic duct angiography catheter as claimed in claim 1, wherein the first side hole and the second side hole are provided at the same height and are 2-4 mm from the top end of the head.
3. The dual lumen cholepancreatography catheter of claim 1, wherein the first tube segment surface is coated with a hydrophilic coating.
4. The dual-lumen cholecystography catheter according to claim 1, wherein the outer wall of the third tube segment is further provided with a catheter rotation mechanism fixed thereto for rotating the catheter.
5. The dual-lumen cholangiopancreatography catheter according to any one of claims 1 to 4, wherein the outer diameters of the second tube section, the third tube section, and the bottom surface of the first tube section are the same, and are all 7 Fr.
6. The dual-lumen cholepancreatography catheter according to claim 1, wherein there is a portion where the third and fourth channels intersect, the length of the intersection line is smaller than the outer diameter of the guide wire, and the specifications of the fifth and sixth channels are the same.
7. The dual-lumen cholepancreatography catheter of claim 1, wherein the third, fourth, fifth, and sixth channels have a diameter of 1 mm.
8. The dual lumen cholecystography catheter of claim 1, wherein the tapered tip is 10mm in length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739341.6A CN111773519A (en) | 2020-07-28 | 2020-07-28 | Double-cavity bile pancreatic duct radiography conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739341.6A CN111773519A (en) | 2020-07-28 | 2020-07-28 | Double-cavity bile pancreatic duct radiography conduit |
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| Publication Number | Publication Date |
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| CN111773519A true CN111773519A (en) | 2020-10-16 |
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| CN202010739341.6A Pending CN111773519A (en) | 2020-07-28 | 2020-07-28 | Double-cavity bile pancreatic duct radiography conduit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773518A (en) * | 2020-07-28 | 2020-10-16 | 上海市东方医院（同济大学附属东方医院） | Biliary pancreatic duct radiography conduit |
| CN114612475A (en) * | 2022-05-12 | 2022-06-10 | 青岛美迪康数字工程有限公司 | Bile duct support specification selection method and device |
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| CN201591896U (en) * | 2010-01-11 | 2010-09-29 | 慕常松 | Medical dual-cavity contrast silicone tube |
| CN103202723A (en) * | 2013-03-29 | 2013-07-17 | 河南科技大学 | Support tube combined thruster for laparoscopic operation |
| CN203953614U (en) * | 2014-06-19 | 2014-11-26 | 李健 | Per os choledochoscope guiding device |
| US20140350463A1 (en) * | 2013-05-22 | 2014-11-27 | Boston Scientific Scimed, Inc. | Dual lumen pancreaticobiliary catheter and methods of cannulating the pancreaticobiliary system |
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| CN114612475A (en) * | 2022-05-12 | 2022-06-10 | 青岛美迪康数字工程有限公司 | Bile duct support specification selection method and device |
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