CN105942964A - Biliary tract exploration method and device based on superfine endoscope - Google Patents
Biliary tract exploration method and device based on superfine endoscope Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
- A61B1/3132—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes for laparoscopy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00147—Holding or positioning arrangements
- A61B1/00154—Holding or positioning arrangements using guiding arrangements for insertion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
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Abstract
The invention provides a biliary tract exploration method and device based on a superfine endoscope. The biliary tract exploration method is characterized by comprising the following steps that a conical guide head is fixedly connected, and the superfine endoscope is mounted in an inserted mode; the superfine endoscope is put into the duodenum descending part; the conical guide head is fixed to the open position of duodenal papilla; a guide wire is inserted, and the superfine endoscope is brought into the common bile duct and the common hepatic duct by the guide wire; an annular surrounding saccule is opened through inflation, and an outer sleeve is fixed; the guide wire and the superfine endoscope are taken out and the outer sleeve is dwelled to form a stable biliary tract exploration channel. The biliary tract exploration device comprises the guide wire, a duodenoscope and the superfine endoscope and is characterized by further comprising the conical guide head, wherein the conical guide head is arranged at the front end of the superfine endoscope and is fixedly connected with the superfine endoscope, the annular surrounding saccule and a traction wire are arranged at the front portion of the outer sleeve, the superfine endoscope and the guide wire are inserted into the outer sleeve and enter the common bile duct, and the annular surrounding saccule is opened through inflation to fix the outer sleeve so as to form the biliary tract exploration channel.
Description
Technical field
The present invention relates to diagnosis and treatment method and medical apparatus and instruments, be bile duct exploration method based on ultra-fine scope and device thereof.
Background technology
Per os choledochoscope (POC-peroral cholangioscopy) is divided three classes at present: 1. biliary tract primary and secondary mirror.②
Spyglass choledochoscope.The most ultra-fine scope.Compared with both the above choledochoscope and traditional radiography, ultra-fine scope enters biliary tract
Having the advantage that in 1 diagnosis: the visual field is big, image is clear, can be with water filling, it is also possible to gas injection, and it is convenient to observe；2 treatments are upper: can
Looking at laser lithotripsy straight with high definition, common bile duct neoplasms can clearly be observed and take work with Endoscopic Treatment by biliary tract pathological changes in early days
Inspection, guides seal wire by narrow biliary tract, assists to place the treatments such as biliary tract rack；3 equipment are relatively cheap, are difficult to infringement, can weigh
Multiple use.
Ultra-fine scope enters biliary system and there is techniques below difficult point: 1. normal nipple openings of sizes can only pass through seal wire,
Diameter about 0.1mm, if choledochoscope enters biliary tract through nipple, it is necessary to just can enter on the basis of sufficiently cutting and expanding
Enter biliary tract；2. the common bile duct place that axially intersects with duodenal bulb fall portion is at an acute angle, and ultra-fine scope arrival descendant duodenum must
Nipple could be directed at after must becoming J-type reversion, but cannot continue to enter mirror to common bile duct direction；After the most ultra-fine scope enters common bile duct,
Due to ultra-fine scope flexible relative, can be tortuous at gastric, dynamics can not be conducted effectively to front end, goes successively to common hepatic duct and left and right
Common hepatic duct crotch operating difficulties, entrance wastes time and energy, and operation easier is high, it is desirable to have the scope doctor of rich experiences and nursing staff
Coordinate.
How to be prevented effectively from above-mentioned difficult point, become doctor to need the difficult problem solved.According to literature search, the state of prior art
Inside and outside scholar uses ultra-fine scope to enter choledoch-method mainly following several method: 1. seal wire guides
Gastrointest Endosc.2006 May;63 (6): 853-7, Endoscopic retrograde cholangiopancreatography (encoscopic
Retrograde cholangio-pancreatography, ERCP) descending sphincterotomy or cylinder balloon expansion,
It is expanded to 10-12 mm backed off after random duodenoscope, first seal wire is introduced common bile duct, withdraw from duodenoscope and retain seal wire,
Under x-ray guides, to insert ultra-fine scope along seal wire and enter common bile duct through vater's papilla. in this kind of technology, seal wire shifts
Shortcoming relatively common.2. anchoring balloon guides Gastrointest Endosc.2009 Aug;70 (2): 297-302, use
The detachable foley's tube of a duodenoscope piece seal wire of insertion or 5 Fr is to stones in intrahepatic bile duct or narrow upstream, by sacculus
Inflation, makes sacculus be anchored to above stones in intrahepatic bile duct or narrow positions, after then being separated with conduit by the handle of balloon catheter proximal end
Conduit is carried out suitable blocking in case sacculus gas leakage, exit duodenoscope and seal wire, then by scope by " J " font edge
Foley's tube is inserted into bile duct, during intervention, needs to withdraw from sacculus from service aisle, so can cause scope in bile duct
Position unstable. these more external cases anchoring balloon to be difficult in bile duct, especially has bile duct narrow interior
The case that narrow or common bile duct is substantially expanded;Because occurring that air embolism and biliary tract rupture complication, stop using this
Method；3. trocar sheath auxiliary Endoscopy.2012 Nov.44 (11): 1037-44, at distance trocar sheath far-end 65-75 cm
Place opens a side opening allowing scope to pass through, and from side opening, scope is inserted trocar sheath, is inserted into 12 together with trocar sheath
Duodenum 12 bulb, after trocar sheath inflated grappling, withdraws from gastroscope, inserts ultra-fine scope, be directly entered sphincter and cut
Open or the main nipple of duodenum of balloon expandable. but currently available trocar sheath is very big, by outward relative to ultra-fine scope
Casing operations difficulty.4. occlusion balloon auxiliary (Endoscopy.2012.42;681-683), design one is with guiding conduit
Sacculus, crossing the duodenal bulb fall portion at nipple, inflation is fixing, blocks duodenoscope and continues to move down, by resistance
The strength of plug makes ultra-fine scope enter biliary tract, and the method is carried out on the basis of nipple must carry out bigger incision or expansion,
The stability of operation is relatively poor；5. snare auxiliary (China's digestive endoscopy magazine, the 2nd phase of volume 32 in February, 2015),
ERCP descending nipple cylinder balloon is expanded, and is expanded to 10-12 mm backed off after random duodenoscope, and assistance application snare entangles super
Thin endoscopic bending section tightens up, and ultra-fine scope enters mirror to the nipple opening part expanded, regulation scope with the snare tightened up
Size knob bending scope alignment opening (in most cases for the left and on lift scope tip), assistant's mild traction snare
And rotation shank can enter biliary tract smoothly the most counterclockwise, if desired can be through biopsy forceps for the patient that far-end bile duct is tortuous
Road inserts seal wire as guiding. and the usual flexible tip of ultra-fine scope about 6 cm can enter epimere in common bile duct.This operational approach
Repeatable needs is verified further, continues into mirror probe operation difficulty.
In sum, above operational approach cuts both ways, it is impossible to make easy and simple to handle, stable, meets entrance biliary tract repeatedly and examines
The needs treated.
Summary of the invention
The technical problem to be solved is: the shortcoming overcoming prior art, it is provided that a kind of based on ultra-fine scope
Between bile duct exploration method and device thereof, it is possible in oral cavity, esophagus, stomach, duodenal bulb fall portion and nipple opening, common bile duct
Set up passage, make ultra-fine scope enter common bile duct end, continue deeper into and enter into common hepatic duct and left and right bile duct bifurcated facilitates feasible,
Prevent ultra-fine scope tortuous at gastric, reach direct view under endoscope diagnosis, the purpose for the treatment of, and simple to operate, be prone to grasp, steady
Qualitative good, the needs of repeated multiple times turnover biliary system are met when therapeutic endoscopy.
The present invention solves the scheme of technical problem: a kind of bile duct exploration method based on ultra-fine scope, it is characterized in that: step
Rapid as follows:
1) the tapered guide head that ultra-fine scope front end is connected transparent, more ultra-fine scope is installed in trocar sheath；
2) with transparent tapered guide head and be socketed with the ultra-fine scope per os of trocar sheath, pharynx, esophagus, stomach enter duodenum
Ball fall portion, after crossing vater's papilla, plays J-type reversion；
3), when playing J-type reversion, draw, with draught line, trocar sheath of pulling back, after ultra-fine scope searches out vater's papilla opening, thoroughly
Bright tapered guide head is fixed to vater's papilla opening part, and makes ultra-fine scope and vater's papilla opening part be formed
The observation space of effect；
4) being inserted seal wire by ultra-fine scope duct, and lead into common bile duct by transparent tapered guide head, seal wire enters gallbladder
After house steward, leading ultra-fine scope to enter common bile duct with seal wire, tapered guide head easily clamp-ons common bile duct, advances ultra-fine scope to enter gallbladder
House steward and common hepatic duct；
5) after ultra-fine scope enters common hepatic duct, loosen draught line, advance trocar sheath to enter common bile duct, trocar sheath along ultra-fine scope
Entering common bile duct a length of A=2-4 centimeters, what inflatable open trocar sheath front portion was arranged holds annular balloon, is fixed by trocar sheath
At the vater's papilla in duodenal bulb fall portion；
6) trocar sheath has expanded vater's papilla, and the eccentric annular balloon that holds artificially increases by duodenum entrance 12
The angle of duodenum 12 nipple, holds annular balloon and is fixed at the vater's papilla in duodenal bulb fall portion and forms stable biliary tract
Detect passage；
7) the bile duct exploration passage formed can make ultra-fine scope or choledochoscope from mouth, pharynx, esophagus, Stomach duodenum ball fall portion,
In vater's papilla, common bile duct repeated multiple times entrance biliary system, it is simple to Endoscopic Treatment；
8) advance ultra-fine scope time tractive draught line, prevent ultra-fine scope away from common bile duct.
Described step 1) or employing: after vater's papilla is carried out cutting expansion by duodenoscope routine ERCP, will
The tapered guide head that ultra-fine scope front end is connected transparent, more ultra-fine scope is installed in trocar sheath.
A kind of bile duct exploration method equipment therefor based on ultra-fine scope, it includes seal wire, ultra-fine scope, it is characterized in that:
Also including that tapered guide head, trocar sheath, described tapered guide head are transparent tapered cap, transparent tapered guide head is placed in ultra-fine
Scope front end is also connected, and anterior setting of described trocar sheath holds annular balloon and draught line, holds annular balloon and trocar sheath
Front end there is distance L, install ultra-fine scope and seal wire in trocar sheath successively, trocar sheath, ultra-fine scope and seal wire draw in taper
Under the guiding of top guide, entering common bile duct by vater's papilla, trocar sheath enters a length of A of vater's papilla i.e. to be stopped leading
Enter, inflatable open trocar sheath front portion arrange hold annular balloon, trocar sheath is fixed, then withdraw from seal wire and ultra-fine in
Mirror, indwelling trocar sheath, form bile duct exploration passage.
Described distance L=2-5 centimetre holding annular balloon and trocar sheath front end.
Described trocar sheath enters vater's papilla length A=2-4 centimetre.
Described hold between annular balloon and trocar sheath in eccentric setting.
Present invention bile duct exploration based on ultra-fine scope method and device thereof provide the benefit that: its ultra-fine scope front end is solid
Transparent tapered guide head even can make to be formed between camera lens and duodenal wall the space of observation, it is simple to finds duodenum
Nipple opening, the small end of transparent tapered guide head is easily accessible the vater's papilla opening that opening is less；Trocar sheath is arranged
Draught line and bias hold annular balloon and be fixed on duodenal bulb fall portion, play tractive, support and Stabilization so that be outer
Sleeve pipe enters angle at vater's papilla and becomes big in duodenal bulb fall portion, and the most ultra-fine scope enters.Insert duodenum
Trocar sheath after nipple enters common bile duct defines from oral cavity, and pharyngeal, esophagus, stomach, duodenal bulb fall portion has to choledoch-
Effect passage so that the turnover biliary tract that ultra-fine scope and other choledochoscopes can repeat smoothly, along with grinding of corresponding auxiliary accessories
Sending out, can pass through common bile duct under the guiding of above-mentioned scope, gallbladder neck tube enters gallbladder and detects diagnosis and treatment.Have and prevent ultra-fine scope
Tortuous at gastric, reduce patient suffering, simple to operate, be prone to grasp, the advantage of good stability.
Accompanying drawing explanation
Fig. 1 is the ultra-fine scope structural representation of the connected tapered guide head of the present invention；
Fig. 2 is the I close-up schematic view of Fig. 1；
Fig. 3 is the outer sleeve structure schematic diagram of the present invention；
Fig. 4 is the II close-up schematic view of Fig. 3；
Fig. 5 is the structural representation that the ultra-fine scope of the connected tapered guide head of the present invention is installed in trocar sheath；
Fig. 6 is the III close-up schematic view of Fig. 5；
Fig. 7 is that the ultra-fine scope of the present invention inserts the structural representation in patient's common bile duct together with trocar sheath；
Fig. 8 is the A-A generalized section of Fig. 7；
Fig. 9 is that the present invention ultra-fine scope duct insertion seal wire leads ultra-fine scope to enter choledoch-structural representation；
Figure 10 is the B-B generalized section of Fig. 9；
Figure 11 is that the trocar sheath of the present invention opens the structural representation holding annular balloon.
In figure: 2 ultra-fine scopes, 3 tapered guide heads, 4 trocar sheaths, 5 hold annular balloon, 6 left common hepatic ducts, and 7
Seal wire, 8 stomaches, 9 common bile duct, 10 duodenums, 11 draught lines, 12 right common hepatic ducts.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
With reference to Fig. 1～Figure 11, embodiment 1, a kind of bile duct exploration method based on ultra-fine scope of the present embodiment, its step is such as
Under:
1) the tapered guide head 3 that ultra-fine scope 2 front end is connected transparent, more ultra-fine scope 2 is installed in trocar sheath 4；
2) with transparent tapered guide head 3 and be socketed with ultra-fine scope 2 per os of trocar sheath 4, pharynx, esophagus, stomach 8 enter 12
Duodenum 12 ball fall portion, after crossing vater's papilla, plays J-type reversion；
3) when playing J-type reversion, drawing, with draught line 11, trocar sheath 4 of pulling back, ultra-fine scope 2 searches out vater's papilla opening
After, transparent tapered guide head 3 is fixed to vater's papilla opening part, makes ultra-fine scope 2 and vater's papilla opening part
Form effective observation space；
4) being inserted seal wire 7 by ultra-fine scope duct, and lead into common bile duct 9 by transparent tapered guide head 3, seal wire 7 enters
After entering common bile duct 9, leading ultra-fine scope 2 to enter common bile duct 9 with seal wire 7, tapered guide head 3 easily clamp-ons common bile duct, advances ultra-fine
Scope 2 enters common bile duct 9 and common hepatic duct；
5) after ultra-fine scope 2 enters common hepatic duct, loosen draught line 11, advance trocar sheath 4 to enter common bile duct 9 along ultra-fine scope 2,
Trocar sheath 4 enters common bile duct 9 a length of A=2-4 centimeters, and what inflatable open trocar sheath 4 front portion was arranged holds annular balloon 5, will
Trocar sheath 4 is fixed at the vater's papilla in duodenal bulb fall portion；
6) trocar sheath 4 has expanded vater's papilla, and eccentric annular balloon 5 people that holds is entered by duodenum 10 for increasing
The angle of vater's papilla, hold annular balloon 5 be fixed at the vater's papilla in duodenal bulb fall portion formed stable
Bile duct exploration passage；
7) the bile duct exploration passage formed can make ultra-fine scope 2 or choledochoscope from mouth, pharynx, esophagus, Stomach duodenum ball fall
In portion, vater's papilla, common bile duct repeated multiple times entrance biliary system, it is simple to Endoscopic Treatment；
8) advance ultra-fine scope 2 time tractive draught line 11, prevent ultra-fine scope 2 away from common bile duct 9.
The structure of the present embodiment equipment therefor is: it includes seal wire 7, ultra-fine scope 2, also includes tapered guide head 3, overcoat
Pipe 4, described tapered guide head 3 is transparent tapered cap, and transparent tapered guide head 3 is placed in ultra-fine scope 2 front end and is connected, institute
The anterior setting stating trocar sheath 4 holds annular balloon 5 and draught line 11, hold the front end of annular balloon 5 and trocar sheath 4 have away from
From L=2-5 centimetre, hold in eccentric setting between annular balloon 5 and trocar sheath 4, in trocar sheath 4, install ultra-fine scope 2 He successively
Seal wire 7, trocar sheath 4, ultra-fine scope 2 and seal wire 7, under the guiding of tapered guide head 3, enter gallbladder by vater's papilla total
Pipe 9, trocar sheath 4 enters a length of A=3 centimetre of vater's papilla i.e. to be stopped importing, the anterior setting of inflatable open trocar sheath 4
Hold annular balloon 5, trocar sheath 4 is fixed, then withdraw from seal wire 7 and ultra-fine scope 2, indwelling trocar sheath 4, form biliary tract
Detect passage.
The present embodiment uses prior art manufacture, and described ultra-fine scope 2, seal wire 7 are the commercially available prod of prior art.
Embodiment 2, a kind of based on ultra-fine scope the bile duct exploration method of the present embodiment, it is adaptable to guide at ultra-fine scope
Seal wire enters the case of common bile duct difficulty, and its step is as follows:
1), after vater's papilla is carried out cutting expansion by duodenoscope routine ERCP, ultra-fine scope 2 front end is connected transparent
Tapered guide head 3, more ultra-fine scope 2 is installed in trocar sheath 4；
2) with transparent tapered guide head 3 and be socketed with ultra-fine scope 2 per os of trocar sheath 4, pharynx, esophagus, stomach 8 enter 12
Duodenum 12 ball fall portion, after crossing vater's papilla, plays J-type reversion；
3) when playing J-type reversion, drawing, with draught line 11, trocar sheath 4 of pulling back, ultra-fine scope 2 searches out vater's papilla opening
After, transparent tapered guide head 3 is fixed to vater's papilla opening part, makes ultra-fine scope 2 and vater's papilla opening part
Form effective observation space；
4) being inserted seal wire 7 by ultra-fine scope duct, and lead into common bile duct 9 by transparent tapered guide head 3, seal wire 7 enters
After entering common bile duct 9, leading ultra-fine scope 2 to enter common bile duct 9 with seal wire 7, tapered guide head 3 easily clamp-ons common bile duct, advances ultra-fine
Scope 2 enters common bile duct 9 and common hepatic duct；
5) after ultra-fine scope 2 enters common hepatic duct, loosen draught line 11, advance trocar sheath 4 to enter common bile duct 9 along ultra-fine scope 2,
Trocar sheath 4 enters common bile duct 9 a length of A=2-4 centimeters, and what inflatable open trocar sheath 4 front portion was arranged holds annular balloon 5, will
Trocar sheath 4 is fixed at the vater's papilla in duodenal bulb fall portion；
6) trocar sheath 4 has expanded vater's papilla, and eccentric annular balloon 5 people that holds is entered by duodenum 10 for increasing
The angle of vater's papilla, hold annular balloon 5 be fixed at the vater's papilla in duodenal bulb fall portion formed stable
Bile duct exploration passage；
7) in the bile duct exploration passage formed can make ultra-fine scope 2 or choledochoscope repeated multiple times entrance biliary system, it is simple to super
Thin Endoscopic Treatment；
8) advance ultra-fine scope 2 time tractive draught line 11, prevent ultra-fine scope 2 away from common bile duct 9.
The present embodiment equipment therefor is essentially identical with embodiment 1 equipment therefor, and difference is: first use duodenum
After vater's papilla is carried out cutting expansion by mirror routine ERCP, then embodiment 1 equipment therefor is used to set up stable biliary tract bougie
Look into passage.
The present invention is not limited to this detailed description of the invention, to those skilled in the art, without creative work
Simple copy and improve belong to the scope that the claims in the present invention are protected.
Claims (6)
1. a bile duct exploration method based on ultra-fine scope, is characterized in that: step is as follows:
1) the tapered guide head that ultra-fine scope front end is connected transparent, more ultra-fine scope is installed in trocar sheath；
2) with transparent tapered guide head and be socketed with the ultra-fine scope per os of trocar sheath, pharynx, esophagus, stomach enter 12 finger balls
Fall portion, after crossing vater's papilla, plays J-type reversion；
3), when playing J-type reversion, draw, with draught line, trocar sheath of pulling back, after ultra-fine scope searches out vater's papilla opening, thoroughly
Bright tapered guide head is fixed to vater's papilla opening part, and makes ultra-fine scope and vater's papilla opening part be formed
The observation space of effect；
4) being inserted seal wire by ultra-fine scope duct, and lead into common bile duct by transparent tapered guide head, seal wire enters gallbladder
After house steward, leading ultra-fine scope to enter common bile duct with seal wire, tapered guide head easily clamp-ons common bile duct, advances ultra-fine scope to enter gallbladder
House steward and common hepatic duct；
5) after ultra-fine scope enters common hepatic duct, loosen draught line, advance trocar sheath to enter common bile duct, trocar sheath along ultra-fine scope
Entering common bile duct a length of A=2-4 centimeters, what inflatable open trocar sheath front portion was arranged holds annular balloon, is fixed by trocar sheath
At the vater's papilla in duodenal bulb fall portion；
6) trocar sheath has expanded vater's papilla, and the eccentric annular balloon that holds artificially increases by duodenum entrance 12
The angle of duodenum 12 nipple, holds annular balloon and is fixed at the vater's papilla in duodenal bulb fall portion and forms stable biliary tract
Detect passage；
7) the bile duct exploration passage formed can make ultra-fine scope or choledochoscope from mouth, pharynx, esophagus, Stomach duodenum ball fall portion,
In vater's papilla, common bile duct repeated multiple times entrance biliary system, it is simple to Endoscopic Treatment；
8) advance ultra-fine scope time tractive draught line, prevent ultra-fine scope away from common bile duct.
2. bile duct exploration method based on ultra-fine scope as claimed in claim 1, is characterized in that: described step 1) or adopt
With: after vater's papilla is carried out cutting expansion by duodenoscope routine ERCP, be connected transparent cone by ultra-fine scope front end
Shape seeker, more ultra-fine scope is installed in trocar sheath.
3. a bile duct exploration method equipment therefor based on ultra-fine scope, it includes seal wire, ultra-fine scope, it is characterized in that: go back
Including tapered guide head, trocar sheath, described tapered guide head is transparent tapered cap, and transparent tapered guide head is placed in ultra-fine interior
Mirror front end is also connected, and anterior setting of described trocar sheath holds annular balloon and draught line, holds annular balloon and trocar sheath
Front end has distance L, installs ultra-fine scope and seal wire in trocar sheath successively, and trocar sheath, ultra-fine scope and seal wire are at tapered guide
Under the guiding of head, entering common bile duct by vater's papilla, trocar sheath enters a length of A of vater's papilla i.e. to be stopped leading
Enter, inflatable open trocar sheath front portion arrange hold annular balloon, trocar sheath is fixed, then withdraw from seal wire and ultra-fine in
Mirror, indwelling trocar sheath, form bile duct exploration passage.
4. bile duct exploration method equipment therefor based on ultra-fine scope as claimed in claim 3, is characterized in that: described in hold ring
Shape sacculus and distance L=2-5 centimetre of trocar sheath front end.
5. bile duct exploration method equipment therefor based on ultra-fine scope as claimed in claim 3, is characterized in that: described trocar sheath
Enter vater's papilla length A=2-4 centimetre.
6. bile duct exploration method equipment therefor based on ultra-fine scope as claimed in claim 3, is characterized in that: described in hold ring
In eccentric setting between shape sacculus and trocar sheath.
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| CN201610426555.1A CN105942964A (en) | 2016-06-16 | 2016-06-16 | Biliary tract exploration method and device based on superfine endoscope |
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| CN201610426555.1A CN105942964A (en) | 2016-06-16 | 2016-06-16 | Biliary tract exploration method and device based on superfine endoscope |
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| CN106859736A (en) * | 2017-02-23 | 2017-06-20 | 中南大学湘雅医院 | A kind of rotatable sphincterotomy knife |
| CN107007240A (en) * | 2017-05-12 | 2017-08-04 | 上海成运医疗器械股份有限公司 | With the visual seal wire superfine electric mirror that sacculus is hot-swappable |
| CN107028581A (en) * | 2017-05-12 | 2017-08-11 | 上海成运医疗器械股份有限公司 | Visual seal wire superfine electric mirror with warm connection function |
| CN109770832A (en) * | 2019-02-27 | 2019-05-21 | 刘奇为 | Superfine electric endoscopic system and its application method with guide function |
| CN110584849A (en) * | 2019-10-14 | 2019-12-20 | 江苏诺瑞思医疗器械有限公司 | Shape memory alloy coated anchor bracket and manufacturing method thereof |
| CN117814728A (en) * | 2024-03-01 | 2024-04-05 | 吉林省沃鸿医疗器械制造有限公司 | Choledochoscope with reducing structure and portable electronic endoscope image processor |
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