CN212281615U - Three-cavity papilla sphincter incision knife - Google Patents
Three-cavity papilla sphincter incision knife Download PDFInfo
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- CN212281615U CN212281615U CN202021517103.2U CN202021517103U CN212281615U CN 212281615 U CN212281615 U CN 212281615U CN 202021517103 U CN202021517103 U CN 202021517103U CN 212281615 U CN212281615 U CN 212281615U
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Abstract
The utility model provides a three-cavity papilla sphincter incision knife. The utility model discloses a first pipeline section, second pipeline section and third pipeline section, first pipeline section totality is coniform, the front end is the ball shape, relative first side opening and the second side opening that sets up are seted up to the conical section lateral wall of first pipeline section, third pipeline section lateral wall is equipped with the first/second seal wire entry that links to each other with it, the incision sword includes electrotome wire, metal connecting rod and incision sword handle, electrotome wire end system is on the outer wall of second pipeline section head end, the other end enters into in the inside wire passageway of second pipeline section through the clearing hole of second pipeline section middle part lateral wall. The utility model is easy to enter the common channel of duodenal papilla or directly enter the bile duct and pancreatic duct without damaging papilla mucous membrane; two sides of the head end pipe body are provided with two channels of a bile duct and a pancreatic duct intubation, so that selective bile duct or pancreatic duct intubation can be realized.
Description
Technical Field
The utility model relates to the technical field of biliary pancreatic duct medical equipment, especially, relate to a three-cavity nipple sphincter incision sword.
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 and papillary sphincterotomy 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, in order to improve the success rate of papillary intubation in ERCP operation, a guide wire is often used to assist papillary sphincter incision for bile duct intubation or pancreatic duct occupation for bile duct intubation.
At present clinical application's nipple sphincter opens the sword pipe shaft and is cylindrically, and the head end is the frustum form, cuts the sword head end opening, carries out intubate or radiography through the seal wire. When the bile duct is intubated, the papillary sphincter incision knife is firstly inserted into a common channel of the duodenal papillary sphincter, then the zebra guide wire is placed into the bile duct or the pancreatic duct through the papillary incision knife, the guide wire is placed into the bile duct or the pancreatic duct by adjusting the direction of the head end of the papillary incision knife, and then the guide wire is tensioned to enable the head end to be arched, so that the papillary sphincter is incised. The papillary sphincter incision knife has the following defects: 1. the opening at the head end of the papillary sphincter incising knife is a circular plane, a certain difficulty exists when the papillary sphincter incising knife is inserted into a common channel of the duodenal papilla, the papillary sphincter incising knife is directly placed into a bile duct or a pancreatic duct, especially for a duodenal papilla with a single hole opening, repeated intubation easily causes duodenal papilla edema, and increases the difficulty of intubation and the incidence rate of complications such as hemorrhage in the operation, pancreatitis after the operation and the like; 2. after the papillary sphincter incision knife is placed into a common duodenal papilla channel, the opening of the papillary sphincter incision knife is easily blocked by a bile duct pancreatic duct diaphragm or a muscle interval, so that a guide wire is difficult to enter a bile duct or a pancreatic duct, the depth of the papillary sphincter incision knife entering the common duodenal papilla channel needs to be adjusted repeatedly, and the operation time is prolonged; 3. after the papillary sphincter incision knife is placed in a common duodenal papilla channel, the entering direction of a guide wire cannot be controlled, so that the guide wire enters a pancreatic duct during bile duct intubation, and the guide wire enters a bile duct during pancreatic duct intubation, so that the success rate of selective bile-pancreatic duct intubation 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; 4. when there is a stenosis of the bile duct or pancreatic duct, the papillary sphincter incision knife is difficult to smoothly pass through the stenosis, and the mucosa is easily damaged to the head end to cause bleeding and mucosal injury.
SUMMERY OF THE UTILITY MODEL
In accordance with the above-mentioned technical problem, there is provided a three-chamber teat sphincter incision knife. The utility model discloses a technical means as follows:
a three-cavity papilla sphincter incision knife comprises a first pipe section, a second pipe section and a third pipe section which are hollow cavities; first pipeline section totality is coniform, and the front end is the ball shape, the first side opening and the second side opening of relative setting are seted up to the circular cone section lateral wall of first pipeline section, third pipeline section lateral wall is equipped with first seal wire entry and second seal wire entry, through first seal wire passageway intercommunication between first seal wire entry and the first side opening, through second seal wire passageway intercommunication between second seal wire entry and the second side opening, the incision sword includes electrotome wire, metal connecting rod and incision handle, electrotome wire end system is on the outer wall of second pipeline section head end, and the other end enters into the inside wire passageway of second pipeline section through the clearing hole of second pipeline section middle part lateral wall, wire passageway and first seal wire passageway, second seal wire passageway contactless.
Furthermore, a first through hole and a second through hole are formed in the bottom surface of the conical section of the first pipe 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 three-channel pipe, 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, and the fifth channel is the metal wire channel;
the third pipe section is a three-channel pipe, a sixth channel communicated with the third channel, a seventh channel connected with the fourth channel and an eighth channel connected with the fifth channel are formed in the third pipe section, the first guide wire inlet is connected with the sixth channel, the second guide wire inlet is connected with the seventh channel, and a metal connecting rod is arranged in the eighth channel;
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 of the first pipe section is over against the pancreatic duct or the bile duct, the second pipe section enters a human body, and the third pipe section is located outside the human body.
Furthermore, the extension pipe of the eighth channel extends out of the bottom end of the third pipe section, the tail of the extension pipe is connected with the handle of the incision knife, and the side wall of the extension pipe is provided with an electric knife connecting joint.
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 3 mm.
Further, the surface of the first pipe section is coated with a hydrophilic coating.
Furthermore, the outer wall of the third pipe section is also provided with a cylindrical handle sleeved on the third pipe section and used for rotating the catheter, and handle rings are arranged at two ends of the cylindrical handle.
Further, the outer diameters of the guide wire inlets are both 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 sixth channel and the seventh channel are the same.
Further, the diameter of the first guide wire inlet and the second guide wire inlet is 1 mm.
Furthermore, the length of the conical head end is 10mm, the length of the electrotome wire channel is 0.7mm, the length of the electrotome wire at the head end is 2cm, and the diameter of the wire is 0.5 mm.
The utility model has the advantages of it is following:
1. the utility model has the advantages that the front end pipe body is conical, the head end of the pipe body is spherical, the surface is coated with the hydrophilic coating, and the pipe body can more easily enter a common duodenal papilla channel or directly enter a bile duct and a pancreatic duct without damaging papilla mucous membranes;
2. the front end pipe body of the utility model is conical, the head end of the pipe body is spherical, and the surface is coated with a hydrophilic coating, so that the pipe body can more easily pass through a narrow bile duct;
3. the two sides of the head end pipe body of the utility model are provided with the two channels of the bile duct and the pancreatic duct intubation tube, the two channels of the pipe body are opened on the side wall of the cone-shaped head end, the guide wire is inserted through the bile duct channel, the cone-shaped head end of the drainage pipe 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;
4. the utility model discloses a passageway through the seal wire in the body takes the cross design of two circles, when realizing that the seal wire does not get into and closes on the passageway, reduces the external diameter of drainage tube.
5. The utility model discloses a body near-end is equipped with pipe twist grip, and two side opening planes of control pipe head end and the planar angle of bile duct increase seal wire intubate success rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are 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 inventive labor.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of a third pipe section according to an embodiment of the present invention.
Fig. 3 is the general structure diagram of the utility model after pulling the handle of the incision knife.
Fig. 4 is a schematic diagram of the working state of the present invention.
In the figure: 11. a spherical front end of the first tube section; 12. a first tube section conical body; 13. a first side hole; 14. a second side hole; 21. a second pipe segment head end; 22. through the hole; 23. an electrotome wire; 24. a third channel; 25. a fourth channel; 26. a fifth channel; 31. a cylindrical handle; 32. a first guidewire inlet; 33. a second guidewire inlet; 34. a handle ring; 41. an eighth channel extension; 42. the electric knife is connected with the joint; 43. a handle of the incision knife.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the present embodiment discloses a three-cavity papillary sphincter incision knife, which comprises a first tube section, a second tube section and a third tube section, all of which are hollow cavities; the first pipe section 12 is conical in general, the front end 11 is spherical, the spherical head end can easily enter a common duodenal papilla channel or directly enter a bile duct and a pancreatic duct, and papilla mucosa is not damaged. The utility model discloses a pipe joint, including the circular cone section lateral wall of first pipeline section, the circular cone section lateral wall of first pipeline section sets up relative first side hole 13 and second side hole 14 that sets up, the third pipeline section lateral wall is equipped with first seal wire entry 32 and second seal wire entry 33, through first seal wire passageway intercommunication between first seal wire entry and the first side hole, through second seal wire passageway intercommunication between second seal wire entry and the second side hole, the incision sword includes electrotome wire, metal connecting rod and incision sword handle, electrotome wire 23 head end system is on the outer wall of second pipeline section head end 21, and the other end enters into the inside wire passageway of second pipeline section through the clearing hole 22 of second pipeline section middle part lateral wall, the wire passageway is with first seal wire passageway, second seal wire passageway contactless, has preset angle between first seal wire entry and the second seal wire entry and the third pipeline section, and this angle makes the seal wire be convenient for stretching into.
Specifically, a first through hole and a second through hole are formed in the bottom surface of the conical section of the first pipe 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 three-channel pipe, a third channel 24 connected with the first through hole and a fourth channel 25 connected with the second through hole are formed in the second pipe section, and a fifth channel 26 is the metal wire channel;
the third pipe section is a three-channel pipe, a sixth channel communicated with the third channel, a seventh channel connected with the fourth channel and an eighth channel connected with the fifth channel are formed in the third pipe section, the first guide wire inlet is connected with the sixth channel, the second guide wire inlet is connected with the seventh channel, and a metal connecting rod is arranged in the eighth channel;
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 of the first pipe section is over against the pancreatic duct or the bile duct, the second pipe section enters a human body, and the third pipe section is located outside the human body.
The extending part 41 of the eighth channel extends out of the bottom end of the third pipe section, the tail part of the eighth channel is connected with a handle 43 of the incision knife, and the side wall of the eighth channel is provided with an electric knife connecting joint 42.
The first side hole and the second side hole are arranged at the same position and have the same height, and the distance from the top end of the head to the top end of the head is 3 mm.
The surface of the first pipe section is coated with a hydrophilic coating.
The outer wall of the third pipe section is also provided with a cylindrical handle 31 which is sleeved on the third pipe section and is used for rotating the catheter, and handle rings 34 are arranged at two ends of the cylindrical handle.
The outer diameters of the guide wire inlets are both 7Fr, in the embodiment, the guide wire inlets are positioned at the same side with the first side hole or the second side hole, and the guide wire inlets are in a connector type.
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, a crossed part exists in the third channel and the fourth channel, the length of the crossed line is smaller than the outer diameter of the guide wire, and the specifications of the sixth channel and the seventh channel are the same.
The diameter of the guide wire channel is 1 mm.
The length of the conical head end is 10mm, the length of the electrotome wire channel is 0.7mm, the length of the electrotome wire at the head end is 2cm, and the diameter of the wire is 0.5 mm.
The specific application method of this embodiment is as follows: as shown in fig. 4, the duodenoscope was placed transorally, passed transesophageally into the stomach, passed through the pylorus into the duodenum, and looked for the tunnel duodenal papilla.
The biliary pancreatic duct angiography catheter is placed through a duodenoscope forceps channel, the cylindrical handle 31 is rotated to enable the side holes at the head end of the papillary sphincter incision knife to be respectively positioned at the left side and the right side of the visual field, the papillary sphincter incision knife enters a common duodenal papilla channel through a duodenal papilla opening, and contrast agent is injected through the contrast agent injection hole to simultaneously visualize the shapes of a bile duct and a pancreatic duct.
The end direction of the cutter head of the sphincter of the nipple in the common passage of the duodenal papilla is adjusted, the cutter head slides into the pancreatic duct in the direction of 1 o 'clock or slides into the common bile duct in the direction of 11 o' clock, and contrast agent is injected through the injection joint of the sphincter of the nipple, so that the shape of the bile duct or the pancreatic duct can be displayed.
When the direct placement of the papillary sphincter incision knife fails, a bend guide wire is placed through the joint of the bile duct of the papillary sphincter incision knife, and the guide wire enters the bile duct through the first side hole; the pancreatic duct joint is arranged into an elbow guide wire through a papillary sphincter incision knife, and the guide wire enters the pancreatic duct through a second side hole.
After successful intubation, the head end of the electrotome wire of the papillary sphincter incision knife is positioned in a common duodenal papilla channel, the electric electrotome wire is tensioned by the handle of the incision knife to enable the head end of the papillary sphincter incision knife to be arched, a high-frequency generator is communicated, and the papillary sphincter is incised by using the electric electrotome wire.
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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A three-cavity papilla sphincter incision knife is characterized by comprising a first tube section, a second tube section and a third tube section which are all hollow cavities; first pipeline section totality is coniform, and the front end is the ball shape, the first side opening and the second side opening of relative setting are seted up to the circular cone section lateral wall of first pipeline section, third pipeline section lateral wall is equipped with first seal wire entry and second seal wire entry, through first seal wire passageway intercommunication between first seal wire entry and the first side opening, through second seal wire passageway intercommunication between second seal wire entry and the second side opening, the incision sword includes electrotome wire, metal connecting rod and incision handle, electrotome wire end system is on the outer wall of second pipeline section head end, and the other end enters into the inside wire passageway of second pipeline section through the clearing hole of second pipeline section middle part lateral wall, wire passageway and first seal wire passageway, second seal wire passageway contactless.
2. The three-cavity papillary sphincter incision knife according to claim 1, wherein the bottom surface of the conical section of the first tube section is provided with a first through hole and a second through hole, 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 three-channel pipe, 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, and the fifth channel is the metal wire channel;
the third pipe section is a three-channel pipe, a sixth channel communicated with the third channel, a seventh channel connected with the fourth channel and an eighth channel connected with the fifth channel are formed in the third pipe section, the first guide wire inlet is connected with the sixth channel, the second guide wire inlet is connected with the seventh channel, and a metal connecting rod is arranged in the eighth channel;
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 of the first pipe section is over against the pancreatic duct or the bile duct, the second pipe section enters a human body, and the third pipe section is located outside the human body.
3. The three-cavity teat sphincter incision knife according to claim 2, characterized in that the extension tube of the eighth channel extends out of the bottom end of the third tube section, and the tail part of the extension tube is connected with the incision knife handle, and the side wall is provided with an electric knife connecting joint.
4. The three-cavity teat sphincter incision knife according to claim 1, characterized in that the first side hole and the second side hole are arranged at the same height and are 3mm away from the top end of the head.
5. The three-lumen papillary sphincter incision knife of claim 1, wherein said first tube segment surface is coated with a hydrophilic coating.
6. The three-cavity teat sphincter incision knife according to claim 1, characterized in that the outer wall of said third tube section is further provided with a cylindrical handle for rotating the catheter, which is sleeved thereon, and the two ends of the cylindrical handle are provided with handle rings.
7. The tri-lumen papillary sphincter incision knife of claim 1, wherein both guide wire inlet outer diameters are 7 Fr.
8. The tri-lumen papillary sphincter incision knife of claim 2, wherein 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 sixth channel and the seventh channel are the same.
9. The tri-lumen papillary sphincter incision knife of claim 1, wherein the diameter of the first and second guide wire inlets is 1 mm.
10. The three-lumen papillary sphincter incision knife of claim 1, wherein the tapered head end is 10mm in length, the electrotome wire channel is 0.7mm, the head end electrotome wire is 2cm in length, and the wire diameter is 0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517103.2U CN212281615U (en) | 2020-07-28 | 2020-07-28 | Three-cavity papilla sphincter incision knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517103.2U CN212281615U (en) | 2020-07-28 | 2020-07-28 | Three-cavity papilla sphincter incision knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212281615U true CN212281615U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021517103.2U Active CN212281615U (en) | 2020-07-28 | 2020-07-28 | Three-cavity papilla sphincter incision knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212281615U (en) |
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2020
- 2020-07-28 CN CN202021517103.2U patent/CN212281615U/en active Active
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