CN212755768U - Anti-displacement metal stent for cholangiojejunostomy - Google Patents
Anti-displacement metal stent for cholangiojejunostomy Download PDFInfo
- Publication number
- CN212755768U CN212755768U CN202020756798.3U CN202020756798U CN212755768U CN 212755768 U CN212755768 U CN 212755768U CN 202020756798 U CN202020756798 U CN 202020756798U CN 212755768 U CN212755768 U CN 212755768U
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- CN
- China
- Prior art keywords
- bracket
- metal
- plastic
- bracket body
- stent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 47
- 239000002184 metal Substances 0.000 title claims abstract description 47
- 238000006073 displacement reaction Methods 0.000 title abstract description 6
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 229910001000 nickel titanium Inorganic materials 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000741 silica gel Substances 0.000 claims abstract description 4
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 4
- 238000009941 weaving Methods 0.000 claims abstract description 4
- 230000003872 anastomosis Effects 0.000 claims description 6
- 238000013508 migration Methods 0.000 claims description 3
- 210000000936 intestine Anatomy 0.000 abstract description 4
- 210000000232 gallbladder Anatomy 0.000 abstract description 2
- 230000003886 intestinal anastomosis Effects 0.000 abstract description 2
- 210000001630 jejunum Anatomy 0.000 abstract description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 8
- 208000037804 stenosis Diseases 0.000 description 8
- 230000036262 stenosis Effects 0.000 description 8
- 210000000013 bile duct Anatomy 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000003228 intrahepatic bile duct Anatomy 0.000 description 3
- 206010051341 Bile duct stenosis Diseases 0.000 description 2
- 206010023126 Jaundice Diseases 0.000 description 2
- 210000000941 bile Anatomy 0.000 description 2
- 210000003445 biliary tract Anatomy 0.000 description 2
- 230000002183 duodenal effect Effects 0.000 description 2
- 238000012277 endoscopic treatment Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000968 intestinal effect Effects 0.000 description 2
- 210000004347 intestinal mucosa Anatomy 0.000 description 2
- 230000003211 malignant effect Effects 0.000 description 2
- 210000004877 mucosa Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- 206010004637 Bile duct stone Diseases 0.000 description 1
- 201000009331 Choledocholithiasis Diseases 0.000 description 1
- 206010019663 Hepatic failure Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000012654 Primary biliary cholangitis Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000003459 common hepatic duct Anatomy 0.000 description 1
- 210000002919 epithelial cell Anatomy 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 210000002603 extrahepatic bile duct Anatomy 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 208000007903 liver failure Diseases 0.000 description 1
- 231100000835 liver failure Toxicity 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000004379 membrane Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 208000037803 restenosis Diseases 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
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- Prostheses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The utility model provides a prevent displacement courage intestinal anastomosis metal support, include: the device comprises a plastic bracket, a bracket body, a recovery line and a releaser; the stent body is formed by weaving nickel-titanium alloy wires and is in a grid shape; the head end of the bracket body is arc-shaped, the body part of the bracket body is cylindrical, and the tail end of the bracket body is spherical; the inner surface and the outer surface of the bracket body are both covered with silica gel films; the recovery wire is an annular metal wire and is led out from the tail end of the bracket body; the head end of the plastic bracket is in a single-pig tail shape, and the tail end of the pipe wall is fixed at the head end of the bracket body; the releaser comprises a single-channel outer sleeve and a single-channel inner core arranged in the outer sleeve; the metal bracket of the utility model can be used for supporting the narrow anastomotic stoma of the gallbladder and the intestine, and the plastic bracket can prevent the metal bracket from shifting; the recovery wire is exposed in the jejunum cavity, and the metal bracket can be taken out by pulling the recovery wire.
Description
Technical Field
The utility model relates to a minimally invasive medical technology and surgical instrument technical field especially relate to a prevent displacement courage intestinal anastomotic stoma metal support, be a be used for treating narrow duodenoscope minimally invasive surgery apparatus of courage intestinal anastomotic stoma.
Background
The biliary-enteric anastomosis stenosis is a common long-term complication in clinic after the biliary-enteric anastomosis, can cause the pressure rise of biliary tracts and unsmooth bile excretion, can cause the symptoms of high fever due to chills, jaundice and pain in the upper abdomen, and can cause cholestatic cirrhosis, calculus formation of intrahepatic bile ducts, liver failure and even endanger the life of a patient due to continuous obstruction.
The treatment of the narrow biliary-intestinal anastomotic stoma comprises surgical operation, endoscope and interventional therapy, wherein the narrow anastomotic stoma is removed in surgery, and the risk of restenosis of the anastomotic stoma is still faced when the biliary-intestinal anastomotic stoma is performed twice; the intervention treatment mostly adopts bile external drainage, which can relieve jaundice, but has poor treatment effect on stenosis. Therefore, at present, endoscopic treatment is mainly adopted, the trauma is small, the recovery is fast, the complication is few, and the patients who do not have endoscopic treatment can still receive surgical treatment.
The method for treating extrahepatic bile duct stenosis under the endoscope comprises a biliary tract plastic bracket and a metal bracket for supporting stenosis, wherein the plastic bracket is small, a plurality of plastic brackets are required to be arranged for supporting stenosis, but the recurrence rate of stenosis is high after the plastic bracket is taken out; although the metal stent is expensive, the diameter of the metal stent is larger, the self-expanding recyclable metal stent can continuously press stenosis through the tension of the stent, the effect of the metal stent is better than that of a plastic stent, but the hepatic duct reserved by the choledocholithiasis is shorter, so that the metal stent is easy to fall off.
The metal stents in clinical application at present include full-covered metal stents, half-covered metal stents and full-naked stents. When the semi-covered or full-naked stent is placed in the bile duct, tumor and epithelial cells of the mucous membrane of the bile duct grow into and wrap the stent metal wire, so that the stent cannot be taken out, and the stent is generally used for malignant bile duct stenosis. For benign stenosis or benign and malignant biliary duct stenosis which is not clear, the implantation treatment of a full-tectorial membrane self-expanding metal stent is generally adopted.
SUMMERY OF THE UTILITY MODEL
According to the technical problems provided by the patent, the anti-displacement metal stent for the biliary-intestinal anastomotic stoma is provided. The utility model mainly utilizes the bracket body with spherical tail end to prevent the metal bracket from moving inwards, and has small stimulation to the intestinal mucosa, and the two ends of the bracket body can not be wrapped by the mucosa; the plastic bracket with the head end in the shape of a single pig tail is utilized, so that the metal bracket is prevented from moving outwards. The utility model discloses a technical means as follows:
an anti-migration chole-intestinal anastomotic stoma metal stent comprising: the device comprises a plastic bracket, a bracket body, a recovery line and a releaser;
the stent body is formed by weaving nickel-titanium alloy wires and is in a grid shape; the head end of the bracket body is arc-shaped, the body part of the bracket body is cylindrical, and the tail end of the bracket body is spherical; the inner surface and the outer surface of the bracket body are both covered with silica gel films;
the recovery wire is an annular metal wire and is led out from the tail end of the bracket body;
the head end of the plastic bracket is in a single-pig tail shape, and the tail end of the pipe wall is fixed at the head end of the bracket body;
the releaser comprises a single-channel outer sleeve and a single-channel inner core arranged in the outer sleeve;
under the working state, the support body and the plastic support are sleeved on the inner core, the support body is placed in the outer sleeve, and the plastic support is positioned outside the outer sleeve.
Further, the length of the stent body is 4cm, and the diameter of the body part of the stent body is 6mm, 8mm or 10 mm.
Further, the length of the plastic support is 7cm, and the circumference is 7Fr or 8.5 Fr.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model provides a prevent bile duct intestines anastomosis metal support that shifts, support body tail end are spherical, have the effect of the interior aversion of prevention metal support, and is amazing little to the intestinal mucosa moreover, and support body both ends can not be wrapped up by the mucosa.
2. The utility model provides a prevent the bile-intestine anastomosis stoma metal support that shifts, plastic support head end are single pigtail shape, can prevent that metal support from shifting outward.
3. The utility model provides a prevent bile duct intestines coincide mouthful metal support that shifts, its recovery line are located the metal support tail end, draw forth through support body intracavity, expose in the jejunum intracavity, retrieve the line through the tractive and can take out metal support smoothly.
Based on the above reasons, the utility model can be widely popularized in the technical fields of minimally invasive medical technology, surgical instruments and the like.
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 structural view of a biliary-intestinal anastomosis anastomotic stoma metal stent for preventing displacement according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a releaser in the embodiment of the present invention.
Fig. 3 is a schematic view illustrating the placement of the metal stent in the intrahepatic bile duct according to the embodiment of the present invention.
In the figure: 1. a plastic support; 2. a stent body; 3. recovering the wire; 4. an inner core; 5. an outer sleeve.
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. 1-3, the utility model provides a displacement-preventing metal stent for a biliary-intestinal anastomotic stoma, which comprises: plastic support 1, support body 2, recovery line 3 and releaser.
The stent body 2 is formed by weaving nickel-titanium alloy wires, and the nickel-titanium alloy wires are woven into a grid shape; the head end of the bracket body 2 is arc-shaped, the body part is cylindrical, and the tail end is spherical; the inner surface and the outer surface of the bracket body 2 are both covered with silica gel films; wherein, the total length of the bracket body 2 is 4cm, and the diameter of the body part is 6mm, 8mm or 10 mm.
The recovery line 3 is an annular metal wire and is led out from the tail end of the bracket body 2.
The head end of the plastic bracket 1 is in a single-pig tail shape, and the tail end of the pipe wall is fixed on the alloy wire at the head end of the bracket body 2; wherein, the length of the plastic bracket 1 is 7cm, and the circumference is 7Fr or 8.5 Fr.
The releaser comprises a single-channel outer sleeve 5 and a single-channel inner core 4 arranged in the outer sleeve 5.
The utility model discloses an use: the bracket body 2 and the plastic bracket 1 are sleeved on the inner core 4, the bracket body 2 is arranged in the outer sleeve 5, and the plastic bracket 1 is arranged outside the outer sleeve 5. Put into the seal wire through inner core 4, will under the guide wire guide the utility model discloses metal support enters into intrahepatic bile duct through the courage intestinal anastomosis stoma, and after the adjustment position, fixed outer tube 5 impels inner core 4, releases plastic support 1 earlier, and the head end is the pigtail form, slowly releases metal support again, withdraws from the seal wire at last, and outer tube 5 withdraws from and separates with metal support. As shown in fig. 3, the cylindrical shape at the anastomotic site of the gallbladder and intestine is the metal stent of the present invention.
Taking out the metal bracket: and (3) placing a foreign body clamp through the duodenal clamp channel, biting the recovery wire, pulling back the foreign body clamp, tightening the head end of the metal bracket, continuously pulling back the foreign body clamp, and pulling the metal bracket and the plastic bracket into the duodenal clamp channel until the metal bracket and the plastic bracket are completely taken out.
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 (3)
1. A displacement-preventing metal stent for a biliary-intestinal anastomosis, which is characterized by comprising: the device comprises a plastic bracket (1), a bracket body (2), a recovery line (3) and a releaser;
the stent body (2) is formed by weaving nickel-titanium alloy wires and is in a grid shape; the head end of the bracket body (2) is arc-shaped, the body part is cylindrical, and the tail end is spherical; the inner surface and the outer surface of the bracket body (2) are both covered with silica gel films;
the recovery wire (3) is an annular metal wire and is led out from the tail end of the bracket body (2);
the head end of the plastic bracket (1) is in a single-pig tail shape, and the tail end of the pipe wall is fixed at the head end of the bracket body (2);
the releaser comprises a single-channel outer sleeve (5) and a single-channel inner core (4) arranged in the outer sleeve (5);
under the working state, the support body (2) and the plastic support (1) are sleeved on the inner core (4), the support body (2) is placed in the outer sleeve (5), and the plastic support (1) is located outside the outer sleeve (5).
2. The anti-migration choleintestinal anastomotic stoma metal stent according to claim 1, wherein the stent body (2) has a length of 4cm and a body diameter of 6mm, 8mm or 10 mm.
3. The anti-migration choleintestinal anastomotic stoma metal stent according to claim 1, wherein the plastic stent (1) has a length of 7cm and a circumference of 7Fr or 8.5 Fr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020756798.3U CN212755768U (en) | 2020-05-09 | 2020-05-09 | Anti-displacement metal stent for cholangiojejunostomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020756798.3U CN212755768U (en) | 2020-05-09 | 2020-05-09 | Anti-displacement metal stent for cholangiojejunostomy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212755768U true CN212755768U (en) | 2021-03-23 |
Family
ID=75066791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020756798.3U Expired - Fee Related CN212755768U (en) | 2020-05-09 | 2020-05-09 | Anti-displacement metal stent for cholangiojejunostomy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212755768U (en) |
-
2020
- 2020-05-09 CN CN202020756798.3U patent/CN212755768U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |