CN217219138U - Stone-taking net bag - Google Patents
Stone-taking net bag Download PDFInfo
- Publication number
- CN217219138U CN217219138U CN202220713006.3U CN202220713006U CN217219138U CN 217219138 U CN217219138 U CN 217219138U CN 202220713006 U CN202220713006 U CN 202220713006U CN 217219138 U CN217219138 U CN 217219138U
- Authority
- CN
- China
- Prior art keywords
- basket
- net
- bag
- conduit
- stone
- 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
Links
- 239000004575 stone Substances 0.000 claims abstract description 36
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000000151 anti-reflux effect Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 2
- 239000012528 membrane Substances 0.000 claims 1
- 210000001953 common bile duct Anatomy 0.000 abstract description 13
- 210000005077 saccule Anatomy 0.000 description 11
- 230000002183 duodenal effect Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 206010004637 Bile duct stone Diseases 0.000 description 4
- 210000000013 bile duct Anatomy 0.000 description 4
- 238000007459 endoscopic retrograde cholangiopancreatography Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 210000005070 sphincter Anatomy 0.000 description 4
- 210000001198 duodenum Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 206010033645 Pancreatitis Diseases 0.000 description 2
- 206010033647 Pancreatitis acute Diseases 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 201000003229 acute pancreatitis Diseases 0.000 description 2
- 208000003167 cholangitis Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 201000009331 Choledocholithiasis Diseases 0.000 description 1
- 206010023129 Jaundice cholestatic Diseases 0.000 description 1
- 201000005267 Obstructive Jaundice Diseases 0.000 description 1
- 208000012654 Primary biliary cholangitis Diseases 0.000 description 1
- 210000000941 bile Anatomy 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000013189 cholangiography Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 201000010304 suppurative cholangitis Diseases 0.000 description 1
Images
Abstract
The utility model provides a get stone string bag, include: the tail part of the catheter is provided with a handle, and the handle is provided with an injection joint; the basket inner core comprises a basket, a net bag, a connecting rod and a connector, the basket is sleeved outside the net bag, one ends of the basket and the net bag are connected with the connector at the same time, the other ends of the basket and the net bag are connected with the connecting rod at the same time, and the connecting rod is inserted into the guide pipe from the outside of the guide pipe; under the tightened state, the net basket and the net bag are arranged in the guide pipe, and the joint is contacted with the top of the guide pipe; in the release state, the net basket and the net bag are expanded out of the conduit, and the joint is jacked up. The utility model can be put into the expanded common bile duct through the endoscopic forceps channel to get the small stones and the gravels which can not be taken by the conventional common basket.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a calculus removal string bag.
Background
Common bile duct stones are a common disease and frequently encountered diseases in China, acute complications such as acute suppurative cholangitis, obstructive jaundice and acute pancreatitis can be caused by the blockage of common bile ducts by the stones, chronic complications such as common bile duct dilatation and cholestatic cirrhosis can be caused by continuous biliary obstruction, and the health of people is damaged.
Endoscopic Retrograde Cholangiopancreatography (ERCP) is a first-line surgical scheme for treating choledocholithiasis, has the advantages of small wound, quick recovery, strong repeatability and the like, and also has complications such as reflux cholangitis, hemorrhage, acute pancreatitis and the like. The calculus removing basket and the calculus removing saccule are common surgical instruments for treating common bile duct calculus by ERCP, the head end of the basket is generally made of four metal wires, and the calculus is sleeved by the four metal wires and then taken out through the duodenal papilla, so that the calculus removing basket and the calculus removing saccule are suitable for large-blocky calculus. The calculus removing saccule is used for extruding calculus out from a gap between the saccule conduit and the papillary sphincter through filling the saccule and through the extrusion force between the saccule and the wall of the bile duct, and is suitable for small calculus, broken stone or silt calculus. In order to reduce the occurrence of reflux cholangitis after ERCP calculus removal, small incision of duodenal papilla sphincter is generally adopted at present, and an expansion balloon with the diameter of less than 1.5cm is generally selected for expanding the duodenal papilla. Therefore, the calculus removing net basket is generally used for removing the calculus with the size of below 1.5cm, and the calculus with the size of below 1cm, particularly the calculus with the size of crushed stone or sand which cannot be taken out by the net basket, is generally removed by the calculus removing ball bag.
The basket generally comprises four metal wires, and in the stone removing process, the adjacent metal wires are easy to transversely shift, so that the shape of the basket is unfixed, the connected metal wires are even interwoven, and the four metal wires are changed into three metal wires, so that the sleeved stones are easy to slip. During the process of removing the calculus, the tension of the filled balloon is easy to cause tearing and bleeding of the papillary root when the filled balloon passes through the sphincter of the duodenal papillary. In addition, for the patients with common bile duct expansion, particularly when the diameter of the common bile duct exceeds 2cm, the small stones, broken stones or sand-like stones are difficult to be taken by the stone taking basket. When the saccule is used for cleaning, negative pressure is generated in the bile duct above the saccule, and small stones are easy to pass through a gap between the stone removing saccule and the wall of the common bile duct and are sucked into the bile duct above the saccule by bile, so that the stone removal fails.
SUMMERY OF THE UTILITY MODEL
According to the technical problems, the stone-taking net bag is provided by combining the defects of treating the bile duct stones through different operation schemes. The utility model discloses mainly take basket and string bag to combine together, the string bag is the star, and less calculus can be through the rhombus clearance that forms between string bag edge and the basket in getting into the string bag, realizes the mesh that basket cover got lithangiuria, rubble. The utility model discloses a technical means as follows:
a stone retrieval string bag comprising: the tail part of the catheter is provided with a handle, and the handle is provided with an injection joint; the basket inner core comprises a basket, a net bag, a connecting rod and a connector, the basket is sleeved outside the net bag, one ends of the basket and the net bag are connected with the connector at the same time, the other ends of the basket and the net bag are connected with the connecting rod at the same time, and the connecting rod is inserted into the guide pipe from the outside of the guide pipe; under the tightened state, the net basket and the net bag are arranged in the guide pipe, and the joint is contacted with the top of the guide pipe; in the release state, the net basket and the net bag are expanded out of the conduit, and the joint is jacked up.
Further, the pipe is a single-channel pipe, a single channel is arranged inside the pipe, the net basket and the net bag are placed in the single channel in a tightened state, and the connecting rod is inserted into the single channel from the outside of the pipe.
Furthermore, the separation holes in the net bag are in a diamond shape, and the edge of the near end of the net bag is in a star shape.
Furthermore, a rhombic gap is formed between the edge of the net bag and the net basket.
Further, an anti-backflow film is arranged in the handle.
Further, the outer diameter of the catheter tube body is 7-8.5Fr, and the length of the catheter tube body is 250 cm.
Further, the maximum diameter of the net basket is 3-5cm, and the length of the net basket is 6-10 cm.
Furthermore, the basket is made of steel wires or nickel-titanium alloy.
Further, the connecting rod is made of steel wires.
Furthermore, the conduit and the net bag are made of polyethylene.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model provides a get stone string bag takes basket and string bag to combine together, and the string bag is the star, and less calculus can realize the purpose that basket cover got little calculus, rubble in the rhombus clearance that forms between string bag edge and the basket gets into the string bag.
2. The utility model provides a get stone string bag, the string bag gap is the rhombus, is the state of tightening up under the natural state, and it is intraductal to get into the string bag sheath easily.
3. The utility model provides a get stone string bag, after the basket release, forced under the effect of basket wire to open, under the restriction of basket, get stone in-process basket and can not warp.
Based on the reason, the utility model discloses can extensively promote in fields such as medical treatment.
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 diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention in an operating state.
In the figure: 1. a basket; 2. a net bag; 3. a conduit; 4. a connecting rod; 5. an injection fitting; 6. and (4) a joint.
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 and 2, the utility model provides a calculus removing net bag, which is a minimally invasive surgical instrument, a duodenoscope minimally invasive surgical instrument for removing calculus from common bile duct.
Get stone string bag includes: the catheter comprises a catheter 3 and a basket inner core, wherein the tail part of the catheter 3 is provided with a handle, and the handle is provided with an injection joint; the basket inner core comprises a basket 1, a net bag 2, a connecting rod 4 and a connector 6, the basket 1 is sleeved outside the net bag 2, one ends of the basket 1 and the net bag 2 are connected with the connector 6 at the same time, the other ends of the basket 1 and the net bag 2 are connected with the connecting rod 4 at the same time, and the connecting rod 4 is inserted into the conduit 3 from the outside of the conduit 3; under the tightened state, the net basket 1 and the net bag 2 are arranged in the conduit 3, and the joint 6 is contacted with the top of the conduit 3; in the released state, the net basket 1 and the net bag 2 are expanded out of the conduit 3 to the outside of the conduit 3, and the joint 6 is jacked up.
In a preferred embodiment, the conduit 3 is a single-channel pipe, a single channel is arranged inside the conduit, the net basket 1 and the net bag 2 are placed in the single channel in a tightened state, and the connecting rod 4 is inserted into the single channel from the outside of the conduit 3.
In a preferred embodiment, the string bag 2 has a diamond shape with holes (gaps) and the edge of the near end of the string bag 2 has a star shape.
In a preferable embodiment, a rhombic gap is formed between the edge of the net bag 2 and the net basket 1.
In a preferred embodiment, an anti-reflux film is arranged in the handle.
In a preferred embodiment, the outer diameter of the tube body of the catheter 3 is 7-8.5Fr, and the length of the tube body is 250 cm.
In a preferred embodiment, the basket 1 has a maximum diameter of 3 to 5cm and a length of 6 to 10 cm.
In a preferred embodiment, the basket 1 is made of steel wire or nitinol.
In a preferred embodiment, the connecting rod 4 is made of steel wire.
In a preferred embodiment, the conduit 3 and the net bag 2 are made of polyethylene.
The utility model can be put into the expanded common bile duct through the endoscopic forceps channel to get the small stones and the gravels which can not be taken by the conventional common basket.
The duodenoscope is placed through the mouth, after the bile duct is inserted successfully, an endoscope is firstly used for retrograde cholangiography to determine the number, the position and the size of calculus, then the duodenal papilla sphincter is slightly cut, and a cylindrical saccule with the diameter of 1.0cm is used for expanding the duodenal papilla.
The calculus removing net bag is placed in the duodenum clamp channel to crush large calculus, then enters the common bile duct through duodenal papilla, releases the basket, sleeves the small calculus of the common bile duct, and is directly dragged into duodenum. When the diameter of the calculus exceeds 1cm, the basket catheter is released to sleeve the calculus, when the basket is tightened, the calculus is close to the end electrode of the catheter head, and the calculus is broken by plasma, microelectrode or laser to break the large calculus in the common bile duct.
After mechanical, laser or liquid stone breaking is carried out on stones with the length of more than 1cm, the device is placed on the upper section of the common bile duct, the net basket is released to sleeve the stones, and the stones are dragged into duodenum to guide the position without stones in the common bile duct.
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 stone extraction net bag is characterized by comprising: the device comprises a catheter (3) and a basket inner core, wherein the tail part of the catheter (3) is provided with a handle, and the handle is provided with an injection joint; the basket inner core comprises a basket (1), a net bag (2), a connecting rod (4) and a connector (6), the basket (1) is sleeved outside the net bag (2), one ends of the basket (1) and the net bag (2) are connected with the connector (6) at the same time, the other ends of the basket (1) and the net bag (2) are connected with the connecting rod (4) at the same time, and the connecting rod (4) is inserted into the conduit (3) from the outside of the conduit (3); under the tightening state, the net basket (1) and the net bag (2) are arranged in the conduit (3), and the joint (6) is contacted with the top of the conduit (3); under the release state, the net basket (1) and the net bag (2) are expanded out of the conduit (3) and the joint (6) is jacked up.
2. The stone retrieval string bag according to claim 1, wherein the conduit (3) is a single channel pipe, a single channel is arranged inside, the basket (1) and the string bag (2) are arranged in the single channel in a tightened state, and the connecting rod (4) is inserted into the single channel from the outside of the conduit (3).
3. The stone retrieval string bag as claimed in claim 1, wherein the holes on the string bag (2) are in a diamond shape, and the edge of the near end of the string bag (2) is in a star shape.
4. The stone net according to claim 1, characterized in that the edge of the net (2) and the net basket (1) form a diamond gap.
5. The stone retrieval string bag of claim 1, wherein an anti-reflux membrane is provided in the handle.
6. The stone retrieval string bag according to claim 1 or 2, wherein the pipe body of the conduit (3) has an outer diameter of 7-8.5Fr and a length of 250 cm.
7. The stone retrieval string bag according to claim 1, wherein the basket (1) has a maximum diameter of 3-5cm and a length of 6-10 cm.
8. The stone retrieval string bag as claimed in claim 1 or 7, wherein the basket (1) is made of steel wire or nickel-titanium alloy.
9. The stone retrieval string bag according to claim 1, wherein the connecting rod (4) is made of steel wire.
10. The stone extraction tuck net according to claim 1, characterized in that the conduit (3) and the tuck net (2) are made of polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220713006.3U CN217219138U (en) | 2022-03-25 | 2022-03-25 | Stone-taking net bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220713006.3U CN217219138U (en) | 2022-03-25 | 2022-03-25 | Stone-taking net bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217219138U true CN217219138U (en) | 2022-08-19 |
Family
ID=82843122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220713006.3U Expired - Fee Related CN217219138U (en) | 2022-03-25 | 2022-03-25 | Stone-taking net bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217219138U (en) |
-
2022
- 2022-03-25 CN CN202220713006.3U patent/CN217219138U/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 |
Granted publication date: 20220819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |