CN213372757U - Split-mouth-shaped pancreatic duct bracket - Google Patents
Split-mouth-shaped pancreatic duct bracket Download PDFInfo
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- CN213372757U CN213372757U CN202020857253.1U CN202020857253U CN213372757U CN 213372757 U CN213372757 U CN 213372757U CN 202020857253 U CN202020857253 U CN 202020857253U CN 213372757 U CN213372757 U CN 213372757U
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Abstract
The utility model provides a cleft-shaped pancreatic duct bracket. The utility model discloses a head, drainage portion and the afterbody that links to each other in proper order, drainage portion includes the gap pipeline section, the gap pipeline section includes the arc pipe wall, the arc of arc pipe wall is the major arc, and the minor arc side rather than matching is the rip of indulging, is equipped with a plurality of from last oval side openings of walking the shape to the spiral extremely down on the arc pipe wall, under the operating condition, during pancreas pipe was put into to head and drainage portion, the duodenum nipple is pressed close to the afterbody. The utility model is pushed into the pancreatic duct by a propeller under the guide of the guide wire, the duct wall of the utility model is provided with a longitudinal crack and an oval side hole, which can fully drain pancreatic liquid in the main pancreatic duct and the branch pancreatic duct, and the drainage effect is better than that of the pancreatic duct bracket with only round side holes; the utility model discloses be interrupted on the pipe wall and set up the rip column crack, crack and side opening are the spiral and arrange, and have kept the drainage effect, can keep the holding power and the tension of pancreas pipe again.
Description
Technical Field
The utility model relates to a minimally invasive medical technology and surgical instruments, in particular to a cleft-shaped pancreatic duct bracket.
Background
Endoscopic Retrograde Cholangiopancreatography (ERCP) is a minimally invasive surgical scheme for treating diseases of liver, gallbladder and pancreas at present, and has the advantages of small wound, quick recovery, few complications and the like. Complications such as hemorrhage, acute pancreatitis and acute bile duct exist in ERCP operation, wherein the incidence rate of the acute pancreatitis is highest, and the main reasons are that duodenal papillary sphincter edema is caused after bile duct is repeatedly intubated and papillary sphincter is cut and expanded, pancreatic duct opening inflammatory stenosis is caused, and pancreatic duct high pressure is caused by pancreatic duct excretion difficulty. The current prevention scheme for post-ERCP pancreatitis comprises two types, namely drug conservation treatment and endoscopic pancreatic duct stent implantation (ERPD).
The drug therapy is mainly used for reducing pancreatic duct pressure by inhibiting pancreatic juice secretion or preventing pancreatitis by inhibiting pancreatic enzyme activity; ERPD is to place a pancreatic duct stent through the duodenal papilla, and reduce pancreatic duct pressure by draining pancreatic juice in a pancreatic duct to the duodenum through the stent. Wherein, ERPD curative effect is definite, which is the main operation scheme for preventing acute pancreatitis after ERCP operation. The pancreatic duct stent used at present comprises three types, namely a straight pancreatic duct stent with barbs, a single pigtail pancreatic duct stent and a double pigtail pancreatic duct stent. Although placing the pancreatic duct stent can obviously reduce the incidence rate of acute pancreatitis after ERCP operation, the incidence rate of the hyperpylaemia is increased at the same time. Compared with acute pancreatitis, hyperamylase does not cause pancreatitis and edema, and patients do not have abdominal pain symptoms, but too high amylase in blood has damage to various organs of the whole body, and the postoperative treatment needs to be carried out by medicines.
The pancreatic duct stent can drain pancreatic juice in the main pancreatic duct, so that the pressure of the main pancreatic duct is reduced. However, as can be seen in the self-releasing pancreatic duct stent and the implanting device with publication number CN 109260576a, the currently used pancreatic duct stent has limited side holes on the duct wall, but the pancreatic duct has more branches, and the side holes on the duct wall are not enough to drain pancreatic juice in the branched pancreatic duct. For the patients without partial pancreatic duct expansion, after the pancreatic duct stent is placed, the pancreatic duct wall can even block the openings of branch pancreatic ducts, so that pancreatic juice in the branch pancreatic ducts is not smoothly discharged, and the occurrence of hyperpylaemia and acute pancreatitis is induced.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned problems, a slit-shaped pancreatic duct stent is provided. The utility model discloses a technical means as follows:
the utility model provides a breach form pancreatic duct support, pancreatic duct support is the single channel, including consecutive head, drainage portion and afterbody, drainage portion includes the gap pipeline section, the gap pipeline section includes the arc pipe wall, the arc of arc pipe wall is the major arc, and the minor arc side rather than matching is indulged the breach, is equipped with a plurality of from last oval side openings of walking down the spiral shape on the arc pipe wall, under the operating condition, in the pancreatic duct was put into to head and drainage portion, the duodenum nipple is pressed close to the afterbody, pancreatic duct support external diameter includes 5, 7Fr, correspondingly, and its internal diameter is 4, 6 Fr.
Furthermore, the drainage part comprises a slit pipe section and a complete pipe section which are arranged at intervals, and the slit pipe section and the next slit pipe section adjacent to the interval complete pipe section are in a spiral walking shape, so that the adjacent splits are arranged in a spiral shape.
Furthermore, a first metal ring for positioning is arranged between the gap pipe section connected with the head part and the head part, and a second metal ring for positioning is arranged between the gap pipe section connected with the tail part and the tail part.
Further, the afterbody is including preventing the displacement structure, prevent that the displacement structure combines for flank, spherical and flank and pigtail shape one of them, the flank is the barb, barb department still is equipped with rather than corresponding barb hole, the angle orientation of opening of barb the head direction, barb hole and the lumen intercommunication of afterbody.
Furthermore, a propeller and an outer sleeve structure are matched, the sphere consists of four pipe walls, the diameter of the inner ring of the single pigtail is 0.5-1cm, and the length of the propeller and the outer sleeve is 200 cm.
Furthermore, the total length of the pancreatic duct bracket is 5-12 cm.
The utility model has the advantages of it is following:
1. the tube wall of the utility model is provided with the longitudinal crack and the oval side hole, which can fully drain the pancreatic juice in the main pancreatic duct and the branch pancreatic duct, and the drainage effect is better than that of the pancreatic duct bracket with only round side holes;
2. the utility model has the advantages that the pipe wall is discontinuously provided with the longitudinal cracks, the cracks and the side holes are spirally arranged, the drainage effect is kept, and the supporting force and the tension of the pancreatic duct can be kept;
3. the tail part of the utility model is provided with a displacement prevention structure, which plays a role in positioning in the placing process of the pancreatic duct bracket and can prevent the pancreatic duct bracket from moving inwards;
4. the utility model discloses both ends are equipped with the becket, can fix a position pancreatic duct support position and the depth of putting into.
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 the utility model discloses embodiment 1 concrete structure schematic diagram.
Fig. 2 is a schematic cross-sectional view of a crack in the embodiment of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.
In the figure: 1. a head portion; 2. an arc-shaped pipe wall; 3. a tail portion; 4. a barb; 5. puncturing holes; 6. a first metal ring; 7. a second metal ring; 8. draining the gap; 9. an elliptical side hole; 10. a complete pipe section.
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.
The embodiment discloses a breach form pancreatic duct support, pancreatic duct support is the single channel, including consecutive head, drainage portion and afterbody, the head is the arc, drainage portion includes the gap pipeline section, the gap pipeline section includes the arc pipe wall, as shown in fig. 2, the arc of arc pipe wall is the major arc, and the minor arc side rather than matching is the rip that moves in the same direction, is equipped with a plurality of oval side openings of walking the shape from last to spiral down on the arc pipe wall, under the operating condition, the head is put into pancreatic duct with drainage portion, the duodenum nipple is pressed close to the afterbody, pancreatic duct support external diameter includes 5, 7Fr, and correspondingly, its internal diameter is 4, 6 Fr.
The drainage part comprises a gap pipe section and a complete pipe section which are arranged at intervals, the gap pipe section and the next gap pipe section adjacent to the gap complete pipe section are in a spiral shape, so that the adjacent splits are arranged in a spiral shape, the oval side holes are in a spiral shape in the same direction as the gap pipe section, and the oval side holes are in a counterclockwise spiral shape in the attached drawing.
In order to position the position of the pancreatic duct support and the depth of the pancreatic duct support, a first metal ring for positioning is arranged between the slit tube section connected with the head part and the head part, and a second metal ring for positioning is arranged between the slit tube section connected with the tail part and the tail part.
The afterbody is including preventing the displacement structure, prevent one of them kind that the displacement structure combines for flank, sphere and flank and pigtail shape, the flank is the barb, barb department still is equipped with rather than corresponding barb hole, the angle of opening orientation of barb the head direction, barb hole and the lumen intercommunication of afterbody. The spherical shape can prevent the displacement of the bile duct stent; the single pigtail shape can prevent the biliary tract stent from moving in the biliary tract, and is beneficial to the late-stage prolapse of the stent under the action of intestinal peristalsis. The corresponding stent is selected according to the actual clinical situation, which is detailed in the following embodiments.
The total length of the pancreatic duct bracket is 5-12 cm.
Example 1
As shown in fig. 1, in this embodiment, the anti-displacement structure is a side wing, for a patient with high risk factors for pancreatitis after ERCP surgery, a pancreatic duct is inserted in advance, a guide wire is left after successful intubation, the device is placed under the guide wire, a cutting knife or a special propeller is used to push a pancreatic duct support into a pancreatic duct, when a barb at the tail of the pancreatic duct support is close to the sphincter of papilla of duodenum, the propeller is fixed and the guide wire is withdrawn, the device is separated from the propeller, and the release of the pancreatic duct support is completed.
Example 2
As shown in fig. 3, in the present embodiment, the anti-displacement structure is spherical and is composed of four pipe walls. The propeller is a single-channel tube. The outer sleeve is a single-channel tube, and the tail part of the pancreatic duct bracket and the propeller can be arranged in the outer sleeve. For the patients with high risk factors for pancreatitis after ERCP operation, firstly, the pancreatic duct is intubated, after the intubatton succeeds, the guide wire is retained, under the guide of the guide wire, the pancreatic duct bracket and the propeller are successively placed, then the pancreatic duct bracket and the propeller are placed into the outer sleeve, the assembled device is placed into the pancreatic duct under the guide of the guide wire, when the head end of the outer sleeve is exposed, the propeller is fixed, the outer sleeve is pulled back, and the tail part of the pancreatic duct bracket naturally forms a sphere. Under the guidance of the guide wire, the pancreatic duct bracket is continuously pushed by using the propeller, the spherical tail part of the pancreatic duct bracket is close to the duodenal papilla, the propeller is fixed and exits from the guide wire, and the pancreatic duct bracket is separated from the propeller to finish the release of the pancreatic duct bracket. The longitudinal clefts and the elliptical side holes on the wall of the drainage tube can fully drain pancreatic juice, the spherical tail part has the function of preventing the stent from shifting in the stent, and the pancreatic tube stent can automatically fall off under the action of intestinal peristalsis.
Example 3
As shown in FIG. 4, in this embodiment, the anti-displacement structure is of single pigtail type, for patients with high risk factor for post-ERCP pancreatitis, the existing pancreatic duct is intubated, the guide wire is left after successful intubation, the device is arranged under the guide of the guide wire, the pancreaticobiliary stent is pushed into the pancreaticobiliary by using a cutting knife or a special propeller, when the agnail at the tail part of the pancreatic duct bracket is close to the papillary sphincter, the propeller is fixed and withdraws from the guide wire until the soft part enters the pancreatic duct bracket, and the duodenoscope is pushed into the distal end of the duodenum, and the head end of the duodenum is pressed downwards, the tail end of the pancreatic duct bracket is pushed into the far end of the duodenum by a propeller, simultaneously, the guide wire is completely withdrawn, the device is separated from the propeller to complete the release of the pancreatic duct bracket, the barb plays a role in positioning in the placing process of the pancreatic duct bracket, meanwhile, the single pigtail can be prevented from entering the pancreatic duct in the process of placing the pancreatic duct bracket, and the internal displacement of the pancreatic duct bracket in the later period can be prevented.
The outer sleeve, the propeller and the like according to embodiments 1, 2 and 3 may be selected from conventional ones, such as a self-detachable pancreatic duct stent and an implantation device of application No. 201811399459.8.
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 (5)
1. The utility model provides a breach form pancreatic duct support, a serial communication port, pancreatic duct support is the single channel, including consecutive head, drainage portion and afterbody, drainage portion includes the gap pipeline section, the gap pipeline section includes the arc pipe wall, the arc of arc pipe wall is the major arc, and the minor arc side rather than matching is for indulging the breach, is equipped with a plurality of from last oval side openings of walking to the spiral down on the arc pipe wall, under the operating condition, the pancreatic duct is put into to head and drainage portion, the duodenum nipple is pressed close to the afterbody, pancreatic duct support external diameter includes 5, 7Fr, correspondingly, and its internal diameter is 4, 6 Fr.
2. The split pancreatic stent as in claim 1, wherein said drainage portion comprises spaced slit and full segments, the slit segment and the next slit segment adjacent to the spaced full segment being helically shaped such that adjacent splits are helically arranged.
3. The split pancreatic duct stent of claim 1 or 2, wherein a first metal ring for positioning is provided between the slit tube section connected to the head section and the head section, and a second metal ring for positioning is provided between the slit tube section connected to the tail section and the tail section.
4. The split pancreatic duct support of claim 1, wherein the tail portion comprises an anti-displacement structure, the anti-displacement structure is one of a side wing, a sphere and a combination of a side wing and a pigtail, the side wing is a barb, the barb is further provided with a barb hole corresponding thereto, an opening angle of the barb faces the head direction, and the barb hole is communicated with the lumen of the tail portion.
5. The split pancreatic stent as claimed in claim 1, wherein the pancreatic stent has a total length of 5 to 12 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020857253.1U CN213372757U (en) | 2020-05-20 | 2020-05-20 | Split-mouth-shaped pancreatic duct bracket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020857253.1U CN213372757U (en) | 2020-05-20 | 2020-05-20 | Split-mouth-shaped pancreatic duct bracket |
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| CN213372757U true CN213372757U (en) | 2021-06-08 |
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| CN202020857253.1U Active CN213372757U (en) | 2020-05-20 | 2020-05-20 | Split-mouth-shaped pancreatic duct bracket |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939226A (en) * | 2022-07-25 | 2022-08-26 | 中南大学 | Pancreatin inactivation stent drainage tube applied to pancreaticojejunostomy and preparation method thereof |
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2020
- 2020-05-20 CN CN202020857253.1U patent/CN213372757U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939226A (en) * | 2022-07-25 | 2022-08-26 | 中南大学 | Pancreatin inactivation stent drainage tube applied to pancreaticojejunostomy and preparation method thereof |
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