CN204500790U - A kind of conduit being applied to ERCP art guides micro-biopsy device in lower biliary tract - Google Patents
A kind of conduit being applied to ERCP art guides micro-biopsy device in lower biliary tract Download PDFInfo
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- CN204500790U CN204500790U CN201520111598.1U CN201520111598U CN204500790U CN 204500790 U CN204500790 U CN 204500790U CN 201520111598 U CN201520111598 U CN 201520111598U CN 204500790 U CN204500790 U CN 204500790U
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- biopsy
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- passage
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Abstract
This utility model relates to a kind of conduit being applied to ERCP art and guides micro-biopsy device in lower biliary tract, and described micro-biopsy device comprises conduit, biopsy main body; Described conduit is provided with silk guide passage and biopsy forceps passage; Described silk guide passage and biopsy forceps passage are separate structure; Wear seal wire in described silk guide passage, its seal wire insert port is positioned at handle one end; Described biopsy forceps passage inserts biopsy main body; Described biopsy main body comprises jaw, jaw action bars, vice body, hands handle; Described jaw is alligator jaws, is made up of the pincers lobe of two opening and closing, and two pincers lobes are moving component; Described jaw action bars and two clamps lobe and forms movable joint; Described vice body is stainless steel screwed tube, and the steel wire of traction tongs lobe mouth folding is equipped with in inside; Described handle is provided with circle and wide circular groove.Its advantage shows: flexible and convenient operation, and biopsy angular range is wide, stings that to cut sample effective, performs the operation safe and reliable, can significantly improve Transhepatic Cholangiobiopsy in Malignant Obstructive Jaundice positive rate.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically, is that a kind of conduit being applied to ERCP art guides micro-biopsy device in lower biliary tract.
Background technology
Biliary tract stenosis is one of clinical common disease, the judgement of its good pernicious matter to patient treatment way choice and disease prognosis very important, but Clinical differential diagnosis is very difficult, especially pernicious biliary tract stenosis, because early symptom is not true to type, patient belongs to middle and advanced stage when there is obvious clinical manifestation, radical surgery resection rate and survival rate low, poor prognosis.ERCP can show extrahepatic duct overall picture, but not high enough to the sensitivity of stenosis of bile duct etiologic diagnosis, specificity and accuracy; IDUS can directly carry out ultrasonic in bile duct, more presses close to pathological tissues, but still belongs to imaging diagnosis, can not obtain pathology foundation.
At present, about histopathologic examination's method of biliary tract mainly contains cytological brushings, biliary drainage cytolgical examination etc. under ERCP, but its positive rate lower (only having 20-30%), poor accuracy.Other method is as costly in per os primary and secondary choledochoscope, operating cost time, the fragile rapid wear of shank, traumatic large, the operating difficulties of percutaneous transhepatic cholangiobiopsy and have hemobilia and perforation, be easy to tumour spread equivalent risk, causes clinical practice to be restricted.
In sum, need a kind of conduit being applied to ERCP art badly and guide micro-biopsy device in lower biliary tract, guide through conduit in ERCP art and focus micro-in biliary tract is stung except sampling censorship pathology, thus clear and definite lesion nature.
Summary of the invention
The purpose of this utility model is for deficiency of the prior art, provides a kind of reasonable in design, easy-to-operate, stings and cut micro-biopsy device in the stable biliary tract of sample.
For achieving the above object, the technical scheme that this utility model is taked is:
The conduit being applied to ERCP art guides a micro-biopsy device in lower biliary tract, and described micro-biopsy device comprises conduit, biopsy main body; Described conduit is provided with silk guide passage and biopsy forceps passage; Described silk guide passage and biopsy forceps passage are separate structure, lay respectively at the avris of conduit, and its silk guide passage is concordant with end of conduit with biopsy forceps channel end; Wear seal wire in described silk guide passage, its seal wire insert port is positioned at handle one end; Described biopsy forceps passage inserts biopsy main body; Described biopsy main body comprises jaw, jaw action bars, vice body, hands handle; Described jaw is alligator jaws, is made up of the pincers lobe of two opening and closing, and two pincers lobes are moving component; Described jaw action bars and two clamps lobe and forms movable joint; Described vice body is stainless steel screwed tube, and the steel wire of traction tongs lobe mouth folding is equipped with in inside; Described handle is provided with circle and wide circular groove.
Described conduit active length is 200cm, work external diameter 3.0mm, its head end external diameter 2.7mm.
Described biopsy forceps passage aperture 1.3mm; Described silk guide passage aperture 1.0mm.
Described vice body external diameter 1.0mm; The maximum bore that opens of described jaw is 2.5mm.
This utility model advantage is:
1, a kind of conduit being applied to ERCP art of this utility model guides micro-biopsy device in lower biliary tract, and carry out biopsy to all directions, each position after guiding biopsy forceps to enter biliary tract by seal wire, biopsy angular range is wide;
2, sting cut tissue by two pincers lobes, sting that to cut sample effective, and device bore is little, traumatic little;
3, protected by catheter jacket, perform the operation safe and reliable, effectively can improve positive rates of biopsy, simultaneously low cost, be easy to promote;
4, two pincers lobes are moving component, can be controlled the size of jaw folding, make to sting to cut and organize accuracy high by handle.
Accompanying drawing explanation
Accompanying drawing 1 is the overall structure schematic diagram that a kind of conduit being applied to ERCP art of the present utility model guides micro-biopsy device in lower biliary tract.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention that this utility model provides is elaborated.
The Reference numeral related in accompanying drawing and ingredient as follows:
1. conduit 2. biopsy main body
3. biopsy forceps passage 4. silk guide passage
5. jaw action bars 6. vice body
7. handle 8. jaw
9. clamp lobe 10. circle
11. wide circular groove 12. seal wires
13. seal wire insert ports
Embodiment 1
Please refer to Fig. 1, Fig. 1 is the overall structure schematic diagram that a kind of conduit being applied to ERCP art of the present utility model guides micro-biopsy device in lower biliary tract.The conduit 1 being applied to ERCP guides a micro-biopsy device in lower biliary tract, and described micro-biopsy device comprises conduit 1, biopsy main body 2; Described conduit 1 is provided with silk guide passage 4 and biopsy forceps passage 3; Described silk guide passage 4 and biopsy forceps passage 3 are separate structure, lay respectively at the avris of conduit 1, and its silk guide passage 4 is concordant with conduit 1 end with biopsy forceps passage 3 end; Wear seal wire 12 in described silk guide passage 4, its seal wire insert port 13 is positioned at handle 7 one end; Described biopsy forceps passage 3 inserts biopsy main body 2; Described biopsy main body 2 comprises jaw 8, jaw action bars 5, vice body 6, handle 7; Described jaw 8 is alligator jaws, is made up of the pincers lobe 9 of two opening and closing, and two pincers lobes 9 are moving component; Described jaw action bars 5 and two clamps lobe 9 and forms movable joint; Described vice body 6 is stainless steel screwed tube, and the steel wire of traction tongs lobe 9 mouthfuls of foldings is equipped with in inside; Described handle 7 is provided with circle 10 and wide circular groove 11.
Described conduit 1 active length is 200cm, work external diameter 3.0mm, its head end external diameter 2.7mm; Described biopsy forceps passage 3 aperture 1.3mm; Described silk guide passage 4 aperture 1.0mm; Described vice body 6 external diameter 1.0mm; The maximum bore that opens of described jaw 8 is 2.5mm.
It should be noted that: described jaw action bars 5 and two clamps lobe 9 and forms movable joint, and during occlusion, two pincers lobe 9 symmetries move to the midline and are engaged biopsy tissue; Circle 10 on described handle 7 is for entangling thumb, described wide circular groove 11 is for placing forefinger and middle finger, under three operations referred to, strength is delivered to pincers lobe 9 place through traction steel wire and carries out folding, in a state of use, when handle 7 is pushed ahead, steel wire transmitting force is to jaw 8, two pincers lobes 9 open, and when handle 7 is toward post-tensioning, two pincers lobes 9 close; Described seal wire 12 has traction assosting effect, and guide micro-biopsy forceps multiple directions in biliary tract, biopsy is carried out at each position; Described conduit 1 has protective effect, makes operation safety reliable; Described micro-biopsy device bore is little, and can be accommodated in conduit 1, during operation, wound is little.
In the lower biliary tract of conduit guiding of a kind of ERCP of being applied to art of the present utility model, the operational approach of micro-biopsy device is: during operation, narrow position and length are determined to the patient of biliary tract stenosis leading ERCP radiography, insert seal wire 12, after seal wire 12 crosses narrow section bile duct, narrow section upper end is inserted to seal wire 12 guide catheter 1, exit seal wire 12 under X-ray examination and the biopsy forceps under closure state inserted bile duct and crosses narrow section gallbladder pipe, below narrow section lower end is fallen back on rear tube 1, biopsy forceps is opened and slowly downward tractive in adjustment conduit 1 direction then, when biopsy forceps retreats to stenotic lesion place, stung by jaw stick 6 occluding forceps lobe 9 and get tissue, so repeatedly sting to get and organize the censorship of 2-3 block.
A kind of conduit being applied to ERCP art of this utility model guides micro-biopsy device in lower biliary tract, and carry out biopsy to all directions, each position after guiding biopsy forceps to enter biliary tract by seal wire 12, biopsy angular range is wide; Sting cut tissue by two pincers lobes 9, sting that to cut sample effective, and device bore is little, traumatic little; By the protection of conduit 1 overcoat, perform the operation safe and reliable, effectively can improve positive rates of biopsy, simultaneously low cost, be easy to promote; Two pincers lobes 9 are moving component, can be controlled the size of jaw 8 folding, make to sting to cut and organize accuracy high by handle 7.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from this utility model method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection domain of the present utility model.
Claims (4)
1. the conduit being applied to ERCP art guides a micro-biopsy device in lower biliary tract, and it is characterized in that, described micro-biopsy device comprises conduit, biopsy main body; Described conduit is provided with silk guide passage and biopsy forceps passage; Described silk guide passage and biopsy forceps passage are separate structure, lay respectively at the avris of conduit, and its silk guide passage is concordant with end of conduit with biopsy forceps channel end; Wear seal wire in described silk guide passage, its seal wire insert port is positioned at handle one end; Described biopsy forceps passage inserts biopsy main body; Described biopsy main body comprises jaw, jaw action bars, vice body, hands handle; Described jaw is alligator jaws, is made up of the pincers lobe of two opening and closing, and two pincers lobes are moving component; Described jaw action bars and two clamps lobe and forms movable joint; Described vice body is stainless steel screwed tube, and the steel wire of traction tongs lobe mouth folding is equipped with in inside; Described handle is provided with circle and wide circular groove.
2. micro-biopsy device according to claim 1, is characterized in that, described conduit active length is 200cm, work external diameter 3.0mm, its head end external diameter 2.7mm.
3. micro-biopsy device according to claim 1, is characterized in that, described biopsy forceps passage aperture 1.3mm; Described silk guide passage aperture 1.0mm.
4. micro-biopsy device according to claim 1, is characterized in that, described vice body external diameter 1.0mm; The maximum bore that opens of described jaw is 2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520111598.1U CN204500790U (en) | 2015-02-16 | 2015-02-16 | A kind of conduit being applied to ERCP art guides micro-biopsy device in lower biliary tract |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520111598.1U CN204500790U (en) | 2015-02-16 | 2015-02-16 | A kind of conduit being applied to ERCP art guides micro-biopsy device in lower biliary tract |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204500790U true CN204500790U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520111598.1U Expired - Fee Related CN204500790U (en) | 2015-02-16 | 2015-02-16 | A kind of conduit being applied to ERCP art guides micro-biopsy device in lower biliary tract |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204500790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171829A (en) * | 2018-09-26 | 2019-01-11 | 常州市久虹医疗器械有限公司 | Cross the molding connection method of the seal wire pass joint of seal wire biliary tract sample pickup tongs and sample pickup tongs |
-
2015
- 2015-02-16 CN CN201520111598.1U patent/CN204500790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171829A (en) * | 2018-09-26 | 2019-01-11 | 常州市久虹医疗器械有限公司 | Cross the molding connection method of the seal wire pass joint of seal wire biliary tract sample pickup tongs and sample pickup tongs |
| CN109171829B (en) * | 2018-09-26 | 2024-04-16 | 常州市久虹医疗器械有限公司 | Forming connection method of guide wire through joint of guide wire biliary tract sampling forceps and sampling forceps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |