CN209361004U - It is a kind of for bile duct and the claw type bracket removal equipment of pancreas - Google Patents
It is a kind of for bile duct and the claw type bracket removal equipment of pancreas Download PDFInfo
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- CN209361004U CN209361004U CN201822114652.4U CN201822114652U CN209361004U CN 209361004 U CN209361004 U CN 209361004U CN 201822114652 U CN201822114652 U CN 201822114652U CN 209361004 U CN209361004 U CN 209361004U
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- multijaw
- chassis
- outer sheath
- setting
- pancreas
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Abstract
It is a kind of for bile duct and the claw type bracket removal equipment of pancreas comprising outer sheath, the multijaw structure that can be stretched out, chassis and removable disk, which is characterized in that the multijaw structure setting is in the inside of outer sheath；For the multijaw structure setting on chassis, a ring spring structure is arranged in multijaw structure front end；The mobile control structure in one control chassis of setting on the chassis, a removable disk is arranged in chassis front；The one drawing structure of removable disk center setting, drawing structure pass through chassis center and stretch out from outer sheath rear end；Control structure is stretched out after outer sheath from outer sheath；The connection on multijaw structure and chassis is the mode that is rotatably connected；The perforation passed through for multijaw structure is set in removable disk；Each pawl of multijaw structure is inclined outwardly from chassis, and the multijaw structure of formation becomes larger forwards from chassis；Ring spring structure setting is in claw-type structure front end；Ring spring inside configuration diameter of a circle is less than bracket pipe outside diameter under non-deformed state.
Description
Technical field
The utility model belongs to medical instruments field, and in particular to takes out to be a kind of for the claw type bracket of bile duct and pancreas
Instrument.
Background technique
Biliary system have secretion, storage, concentration and biliary function, to bile be discharged into duodenum have it is important
Adjustment effect.By the secondary benign ductal of cholangitis repeatedly or operation on biliary tract is narrow or cholangiocarcinoma, liver cancer, cancer of pancreas and metastatic carcinoma
Etc. Malignent Biliary Obstruction caused by malignant tumours, disease incidence is higher, seriously affects patients ' life quality.
Biliary tract rack is implanted to the better method that stenosis or occlusion position is current treatment obstruction of biliary tract.In complicated gallbladder
During road is rebuild, the application of biliary tract rack still can not be ignored, and indwelling is considered especially in the unsatisfied situation of Biliary reconstruction
Biliary tract rack pipe, biliary tract rack pipe can not only play the role of decompression drainage, support, the healing conducive to biliary tract, while also just
In observing bile situation and the effects of postoperative cholangiography.There is research to confirm that stand tube of the indwelling Jing Guo previous anastomotic is to avoid
One very important factor of biliary complications can play the role of reducing biliary complications, especially in complicated, difficulty
It is acted in biggish Biliary reconstruction significant.During liver transfer operation Biliary reconstruction, for biliary tract condition, good patient can not be stayed
Biliary tract rack pipe is set, but for the Biliary reconstruction of some complexity, different types of biliary tract can be selected according to situation different in art
Stand tube reduces biliary complications after orthotopic liver transplantation in favor of the healing of biliary tract.
After bracket is placed in a period of time, after obstruction of bile duct disappearance or biliary tract recovery, need to take bracket from implanting
Out, the bracket being placed in also tends to there are problems that vacillating, and causes bracket taking-up to have difficulties, currently used technological means is
It is taken out using snare or biopsy forceps, but position of having an effect is parallel to bracket longitudinal direction more, there is difficulty of having an effect, and then take out
Difficult problem.
How much technical solution of the existing technology is by a kind of from row's property gallbladder from row's property mode, such as 201610346785.7
Pipe holder；In addition there are also the therapeutic modality of setting balance spring, e.g., cholangio-stent is can be recycled in 201620595874.0 integral types；
Above-mentioned technical proposal is all a kind of design convenient for taking-up by improving bracket itself, and usually used in existing clinical operation
It is common catheter holder, the prior art lacks the technical solution being configured to removal equipment.
The utility model is directed to problem that is difficult and taking out bracket difficulty of having an effect in the prior art, provides a kind of for bile duct
And the claw type bracket removal equipment of pancreas.
Utility model content
In order to overcome the problems, such as to have an effect in the prior art difficult and take out bracket difficulty, the utility model provides one kind and is used for
The claw type bracket removal equipment of bile duct and pancreas.
It is a kind of for bile duct and the claw type bracket removal equipment of pancreas comprising outer sheath, the multijaw structure that can be stretched out, bottom
Disk and removable disk, which is characterized in that the multijaw structure setting is in the inside of outer sheath；The multijaw structure setting is on chassis
On, a ring spring structure is arranged in multijaw structure front end；The mobile control structure in one control chassis of setting, bottom on the chassis
One removable disk is set in front of disk；One drawing structure of removable disk center setting, drawing structure pass through chassis center from outer
Sheath rear end is stretched out；Control structure is stretched out after outer sheath from outer sheath；The connection on multijaw structure and chassis is rotatably to connect
Connect mode；The perforation passed through for multijaw structure is set in removable disk；Each pawl of multijaw structure is inclined outwardly from chassis, shape
At multijaw structure become larger forwards from chassis；Ring spring structure setting is in claw-type structure front end；Under non-deformed state
Ring spring inside configuration diameter of a circle is less than bracket pipe outside diameter；In the outer sheath front end outer side, location structure is set, it is described
Lateral wall of the location structure around outer sheath front end.Before use, removable disk is arranged in ruler to guarantee the smallest multijaw size
At very little biggish multijaw locations of structures, after reaching designated position, location structure the position of outer sheath can be fixed, and be prevented
Only the mobile deviation for leading to action direction occurs for outer sheath, pushes control structure by recession outer sheath or forward, makes multijaw knot
Structure is stretched out from outer sheath, and rear end is pulled back by pulling structure by the position of control structure control multijaw, made the ruler of multijaw structure
Very little to become larger, front end is opened, and ring spring is made to form the elastic force of retraction, when front end auger Spread plane dimension to when being greater than bracket pipe outside diameter；It is logical
Control control structure and drawing structure are crossed, multijaw structure is moved down, covers multijaw structure on the outside of stand tube, it is rear to unclamp drawing knot
Structure, the ring spring of front end can then encircle multijaw to stent outer by elastic force, and led to extract and.
Further, described 3-6 pawl of multijaw structure setting.
Further, the multijaw structure is preferably provided with 3 pawls.
Further, the chassis is provided in round chassis, and circular base plate edge is arranged 3 notches, is respectively set in notch
One connection structure, connection structure are connect with multijaw structure, and multijaw structure can relatively rotate in junction；Multijaw structure passes through
Relatively rotate the opening and closure for realizing three-jaw.
Further, the connection structure is set as cylindrical connecting column, and the centre of the notch is arranged in the connecting column
Position, the connecting column and chassis integrally connected；The setting of cylindrical connecting column rotates convenient for multijaw structure.
Further, the multijaw structure includes the connection ring of integrally connected, tilting section and with hook segment, the connection ring setting
In the periphery of connecting column, the diameter of connection ring is big compared with the diameter of connecting column, and connection ring relatively rotates by shaft of connecting column；
Band hook segment is the inclined structure in portion slightly inwards；Ring spring structure setting is in band hook segment front.Such setting with hook segment can be with
Guarantee big grasping force when grasping.
Further, the tilting section and the main body with hook segment are set as rectangular slab, and the setting of rectangular slab has multijaw structure
There are stronger stability and grasping force.
Further, the control structure on the chassis is set as control-rod.
Further, the control-rod main body is set as the round and smooth rectangular configuration in edge, the control-rod free end setting one
L shape control-rod handle, control-rod handle stretch out on the outside of outer sheath；It can be with mobile chassis, thus mobile by push-and-pull control-rod
The position of multijaw structure.
Further, the removable disk is provided in round removable disk, and it is logical that 3 ellipses are arranged in round removable disk edge
Hole, the three-jaw of multijaw structure are each passed through 3 ellipse holes, the rectangular slab of the size of the ellipse hole compared with multijaw structure
The size of cross-sectional area is big；It can control the opening and closure of multijaw structure by mobile removable disk.
Further, the removable disk and the round stretch hole of chassis center setting one, interior one drawing of setting of the stretch hole
Structure, drawing structure one end are fixed in removable disk, and the other end passes through chassis center and stretches out outside outer sheath；It is pulled by drawing
Structure, may be implemented the movement of removable disk, to realize the opening and closure of multijaw structure.
Further, the drawing structure setting is drawing silk, and drawing silk is tied in removable disk.By pulling backward
The recession of removable disk may be implemented in wire drawing, opens multijaw structure, by unclamping drawing silk after reaching on the outside of stand tube, in ring
Stand tube is encircled under the effect of shape spring structure elastic force, and stand tube is taken out.
Alternatively, the drawing structure is drawing item；Pull item and removable disk integrally connected or the drawing item close to
Block section is arranged in the position of the over and under of removable disk, and an arc-shaped drawing is arranged in one end that drawing item stretches out outer sheath
Ring；Drawing item can be fixed in removable disk by setting block section, so that removable disk be made to follow drawing item mobile, be led
The setting of pull ring pulls drawing item convenient for operator.During taking out stand tube, drawing item Forward be may further ensure that
The pressure of front end contact surface reduces and slips risk.
Further, the block section is set as cylindrical block section, the diameter of the diameter of cylindrical block section compared with stretch hole
Greatly；Such setting guarantees that drawing item is fixedly secured in removable disk, to guarantee that pulling item drives removable disk mobile.
Further, the ring spring structure and multijaw structure welding；Such setting can make multijaw structure not outer
Certain angle can be opened under the action of power, so as to use lesser power drawing drawing silk that can sufficiently open multijaw knot
Structure.
Further, the location structure includes positioning gasbag, snorkel, inflatable structure；The positioning gasbag setting is outside
On the lateral wall of sheath front end；Described snorkel one end and positioning gasbag integrally connected, the snorkel other end stretch out outside outer sheath
Side is inflated to positioning gasbag by inflatable structure, is affixed on gas cell outer wall in bile duct wall, plays outer sheath being fixed on bile duct
The purpose at middle part.
Further, inflatable structure is set as gas cell, and the snorkel nozzle for stretching out outer sheath one end integrally connects with gas cell
It connects, switch valve is set between gas cell and snorkel；Setting switch valve can close switch valve after the completion of inflation, anti-fastening
Gas in the air bag of position sheds, and opens switch valve after taking out bracket, releases the gas in positioning gasbag, then leads outer sheath
It is external to pull out patient.
Further, the outer sheath is set as cylindrical, massive hose, and 3 channels, including drawing are arranged in outer sheath
Channel, control-rod channel and ventilation tube passage；Such setting can guarantee that pulling item and control-rod follows the synchronous fortune of outer sheath
Dynamic and bending, guarantees the control to front chassis and removable disk.
Further, one section of hollow pipe is arranged in the front end of the outer sheath, and the length of hollow pipe is not less than multijaw structure division
Total length, hollow pipe can accommodate multijaw structure；Multijaw structure is located in hollow pipe before opening, avoids scratching bile duct.
In use, the internal outer sheath with multijaw structure is sent into patient's body, after reaching bracket position, squeeze
Air bag makes positioning gasbag expansion heave and be tightly attached on bile duct inner wall, so that the position of outer sheath be fixed, then to being pushed forward
Control-rod on dynamic chassis is moved to multijaw structure outside outer sheath, rear to make removable disk backward by pulling drawing structure backward
The mobile opening angle for being increased multijaw structure with this is made front end opening dimension be greater than bracket outer diameter and is socketed in stent outer, after
Drawing structure is unclamped, three-jaw then can be tightly attached to stent outer by elastic force, finally pull outer sheath by the ring spring of front end
Patient is external out.
Compared with prior art, the technical solution of the utility model is arranged for bracket removal equipment, this technology
Scenario-frame is ingenious, can accurately take out bracket, and instrument cost of manufacture is cheap, and can be widely popularized in clinic makes
With.
Detailed description of the invention
Fig. 1, which is that the utility model is a kind of, stretches out outer sheath for the claw type bracket removal equipment multijaw structure of bile duct and pancreas
Overall structure diagram；
Fig. 2 is that a kind of part for bile duct and the claw type bracket removal equipment unused state of pancreas of the utility model is put
Big structure schematic diagram；
Fig. 3 is a kind of partial cutaway for bile duct and the claw type bracket removal equipment unused state of pancreas of the utility model
Face enlarged structure schematic diagram；
Fig. 4, which is that the utility model is a kind of, stretches out outer sheath for the claw type bracket removal equipment multijaw structure of bile duct and pancreas
Partial enlargement structural representation；
Fig. 5, which is that the utility model is a kind of, stretches out outer sheath for the claw type bracket removal equipment multijaw structure of bile duct and pancreas
Part section enlarged structure schematic diagram；
Fig. 6, which is that the utility model is a kind of, has drawing item and control-rod for the claw type bracket removal equipment of bile duct and pancreas
Multijaw structure enlarged structure schematic diagram；
Fig. 7 be the utility model it is a kind of for the claw type bracket removal equipment of bile duct and pancreas without drawing item and control
The multijaw structure enlarged structure schematic diagram of bar；
Fig. 8 is a kind of control of claw type bracket removal equipment operator's control terminal for bile duct and pancreas of the utility model
The enlarged structure schematic diagram of bar, drawing item and gas cell；
Multijaw structure is supportted when Fig. 9 is a kind of claw type bracket removal equipment use for bile duct and pancreas of the utility model
The partial enlargement structural representation of open state；
Figure 10 is that a kind of claw type bracket removal equipment for bile duct and pancreas of the utility model is in the more of softened state
The enlarged structure schematic diagram of pawl structure.
Figure 11 is that a kind of claw type bracket removal equipment outer sheath part section for bile duct and pancreas of the utility model is put
Big structure schematic diagram；
Figure 12 is that a kind of enlarged structure on the claw type bracket removal equipment chassis for bile duct and pancreas of the utility model is shown
It is intended to；
Figure 13 is that the utility model is a kind of for the single pawl of claw type bracket removal equipment multijaw structure of bile duct and pancreas
Enlarged structure schematic diagram；
Figure 14 is that the utility model is a kind of to be connected for the claw type bracket removal equipment multijaw structure of bile duct and pancreas and chassis
Connect the section enlarged structure schematic diagram at place.
In figure, 1, outer sheath；11, a channel is pulled；12, control-rod channel；13, ventilation tube passage；14, hollow pipe；2,
Multijaw structure；21, connection ring；22, tilting section；23, band hook segment；24, ring spring structure；3, chassis；31, connecting column；32, it controls
Bar processed；321, L shape control-rod handle；4, removable disk；41, round stretch hole；42, ellipse hole；43, item is pulled；
431, block section；432, arc-shaped stretch ring；5, positioning gasbag；51, snorkel；52, gas cell；521, switch valve.
Specific embodiment
Illustrate the embodiments of the present invention below by way of particular specific embodiment, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.The utility model can also be by another
Outer different specific embodiment is embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.It should be noted that the case where not conflicting
Under, the feature in following embodiment and embodiment can be combined with each other.
Embodiment 1 is a kind of for bile duct and the claw type bracket removal equipment of pancreas
It is a kind of for bile duct and the claw type bracket removal equipment of pancreas comprising outer sheath 1, the multijaw structure 2 that can be stretched out,
Chassis 3 and removable disk 4, which is characterized in that the inside of outer sheath 1 is arranged in the multijaw structure 2；The multijaw structure 2 is set
It sets on chassis 3, a ring spring structure 24 is arranged in 2 front end of multijaw structure；One control chassis 3 of setting is moved on the chassis 3
A removable disk 4 is arranged in front of chassis 3 in dynamic control structure；4 center setting of removable disk, the one drawing structure, drawing knot
Structure passes through 3 center of chassis and stretches out from 1 rear end of outer sheath；Control structure is stretched out after outer sheath 1 from outer sheath 1；Multijaw structure
2 with the connection on chassis 3 be the mode that is rotatably connected；The perforation passed through for multijaw structure 2 is set in removable disk 4；Multijaw structure 2
Each pawl be inclined outwardly from chassis 3, the multijaw structure 2 of formation becomes larger forwards from chassis 3；Ring spring structure
24 are arranged in claw-type structure front end；24 inside diameter of a circle of ring spring structure is less than bracket pipe outside diameter under non-deformed state；?
Location structure, lateral wall of the location structure around 1 front end of outer sheath is arranged in 1 front end outer side of outer sheath.Before use, being
Guarantee the smallest three-jaw size, removable disk 4 is set at larger-size 2 position of multijaw structure, reaches designated position
Afterwards, control structure is pushed by recession outer sheath 1 or forward, stretches out multijaw structure 2 from outer sheath 1, rear end is tied by control
Structure controls the position of three-jaw, is pulled back by pulling structure, makes becoming large-sized for multijaw structure 2, and front end is opened, and makes ring spring shape
At the elastic force of retraction, when front end auger Spread plane dimension to when being greater than bracket pipe outside diameter；By control control structure and drawing structure, move down
Multijaw structure 2 makes 2 sets of multijaw structure on the outside of stand tube, and rear to unclamp drawing structure, the ring spring of front end then can be by elastic force
Multijaw is encircled to stent outer, and is led to extract and.
The multijaw structure 2 is preferably provided with 3 pawls.
The chassis 3 is provided in round chassis 3, and 3 edge of circular base plate is arranged 3 notches, a company is respectively set in notch
Binding structure, connection structure are connect with multijaw structure 2, and multijaw structure 2 can relatively rotate in junction；Multijaw structure 2 passes through
Relatively rotate the opening and closure for realizing three-jaw.
The connection structure is set as cylindrical connecting column 31, and the interposition of the notch is arranged in the connecting column 31
It sets, the connecting column 31 and 3 integrally connected of chassis；The setting of cylindrical connecting column 31 rotates convenient for multijaw structure 2.
The connection ring 21 of the multijaw structure 2 including integrally connected, tilting section 22 and with hook segment 23, the connection ring 21 is set
It sets in the periphery of connecting column 31, the diameter of connection ring 21 is big compared with the diameter of connecting column 31, and connection ring 21 is shaft with connecting column 31
It relatively rotates；Band hook segment 23 is the inclined structure in portion slightly inwards；The setting of ring spring structure 24 is in band 23 front of hook segment.This
Setting of the kind with hook segment 23 can guarantee big grasping force when grasping.
The tilting section 22 is set as rectangular slab with the main body with hook segment 23, and the setting of rectangular slab has multijaw structure 2
Stronger stability and grasping force.
Control structure on the chassis 3 is set as control-rod 32.
32 main body of control-rod is set as the round and smooth rectangular configuration in edge, and one " L " is arranged in 32 free end of control-rod
Shape control-rod handle 321,32 handle of control-rod stretch out 1 outside of outer sheath；By push-and-pull control-rod 32 can with mobile chassis 3, from
And move the position of multijaw structure 2.
The removable disk 4 is provided in round removable disk 4, and 3 ellipse holes are arranged in round 4 edge of removable disk
42, the three-jaw of multijaw structure 2 is each passed through 3 ellipse holes 42, and the size of the ellipse hole 42 is compared with multijaw structure 2
The size of rectangular slab cross-sectional area is big；It can control the opening and closure of multijaw structure 2 by mobile removable disk 4.
The removable disk 4 and the round stretch hole 41 of 3 center setting of chassis one, the interior one drawing knot of setting of the stretch hole
Structure, drawing structure one end are fixed in removable disk 4, and the other end passes through 3 center of chassis and stretches out outside outer sheath 1；By leading
Pull-up structure, may be implemented the movement of removable disk 4, to realize the opening and closure of multijaw structure 2.
The drawing structure setting is shape drawing silk, and drawing silk is tied in removable disk 4.By pulling drawing silk backward
The recession that removable disk 4 may be implemented opens multijaw structure 2, by unclamping drawing silk after reaching on the outside of stand tube, in annular
Stand tube is encircled under the effect of 24 elastic force of spring structure, and stand tube is taken out.
The ring spring structure 24 is welded with multijaw structure 2；Such setting can make multijaw structure 2 in not external force
Effect is lower and can open certain angle, so as to use lesser power drawing drawing silk that can sufficiently open multijaw structure 2.
In use, the internal outer sheath 1 with multijaw structure 2 is sent into patient's body, after reaching bracket position, to
Preceding that the control-rod 32 on chassis 3 is pushed to be moved to multijaw structure 2 outside outer sheath 1, being made afterwards by drawing drawing structure backward can
Mobile disk 4 moves backward the opening angle for increasing multijaw structure 2 with this, so that front end opening dimension is greater than bracket outer diameter and is socketed in
Stent outer, rear to unclamp drawing structure, three-jaw then can be tightly attached to stent outer by elastic force by the ring spring of front end, finally will
It is external that outer sheath 1 is drawn out patient.
Embodiment 2 is a kind of for bile duct and the claw type bracket removal equipment of pancreas
It is a kind of for bile duct and the claw type bracket removal equipment of pancreas comprising outer sheath 1, the multijaw structure 2 that can be stretched out,
Chassis 3 and removable disk 4, which is characterized in that the inside of outer sheath 1 is arranged in the multijaw structure 2；The multijaw structure 2 is set
It sets on chassis 3, a ring spring structure 24 is arranged in 2 front end of multijaw structure；One control chassis 3 of setting is moved on the chassis 3
A removable disk 4 is arranged in front of chassis 3 in dynamic control structure；4 center setting of removable disk, the one drawing structure, drawing knot
Structure passes through 3 center of chassis and stretches out from 1 rear end of outer sheath；Control structure is stretched out after outer sheath 1 from outer sheath 1；Multijaw structure
2 with the connection on chassis 3 be the mode that is rotatably connected；The perforation passed through for multijaw structure 2 is set in removable disk 4；Multijaw structure
2 each pawl is inclined outwardly from chassis 3, and the multijaw structure 2 of formation becomes larger forwards from chassis 3；Ring spring structure
24 are arranged in claw-type structure front end；24 inside diameter of a circle of ring spring structure is less than bracket pipe outside diameter under non-deformed state；?
Location structure, lateral wall of the location structure around 1 front end of outer sheath is arranged in 1 front end outer side of outer sheath.Before use, being
Guarantee the smallest three-jaw size, removable disk 4 is set at larger-size 2 position of multijaw structure, reaches designated position
Afterwards, control structure is pushed by recession outer sheath 1 or forward, stretches out multijaw structure 2 from outer sheath 1, rear end is tied by control
Structure controls the position of three-jaw, is pulled back by pulling structure, makes becoming large-sized for multijaw structure 2, and front end is opened, and makes ring spring shape
At the elastic force of retraction, when front end auger Spread plane dimension to when being greater than bracket pipe outside diameter；By control control structure and drawing structure, move down
Multijaw structure 2 makes 2 sets of multijaw structure on the outside of stand tube, and rear to unclamp drawing structure, the ring spring of front end then can be by elastic force
Multijaw is encircled to stent outer, and is led to extract and.
The multijaw structure 2 is set as 3 pawls.
The chassis 3 is provided in round chassis 3, and 3 edge of circular base plate is arranged 3 notches, a company is respectively set in notch
Binding structure, connection structure are connect with multijaw structure 2, and multijaw structure 2 can relatively rotate in junction；Multijaw structure 2 passes through
Relatively rotate the opening and closure for realizing three-jaw.
The connection structure is set as cylindrical connecting column 31, and the interposition of the notch is arranged in the connecting column 31
It sets, the connecting column 31 and 3 integrally connected of chassis；The setting of cylindrical connecting column 31 rotates convenient for multijaw structure 2.
The connection ring 21 of the multijaw structure 2 including integrally connected, tilting section 22 and with hook segment 23, the connection ring 21 is set
It sets in the periphery of connecting column 31, the diameter of connection ring 21 is big compared with the diameter of connecting column 31, and connection ring 21 is shaft with connecting column 31
It relatively rotates；Band hook segment 23 is the inclined structure in portion slightly inwards；The setting of ring spring structure 24 is in band 23 front of hook segment.This
Setting of the kind with hook segment 23 can guarantee big grasping force when grasping.
The tilting section 22 is set as rectangular slab with the main body with hook segment 23, and the setting of rectangular slab has multijaw structure 2
Stronger stability and grasping force.
Control structure on the chassis 3 is set as control-rod 32.
32 main body of control-rod is set as the round and smooth rectangular configuration in edge, and one " L " is arranged in 32 free end of control-rod
Shape control-rod handle 321,32 handle of control-rod stretch out 1 outside of outer sheath；By push-and-pull control-rod 32 can with mobile chassis 3, from
And move the position of multijaw structure 2.
The removable disk 4 is provided in round removable disk 4, and 3 ellipse holes are arranged in round 4 edge of removable disk
42, the three-jaw of multijaw structure 2 is each passed through 3 ellipse holes 42, and the size of the ellipse hole 42 is compared with multijaw structure 2
Rectangular slab cross-sectional area size it is big；It can control the opening and closure of multijaw structure 2 by mobile removable disk 4.
The removable disk 4 and the round stretch hole 41 of 3 center setting of chassis one, the interior one drawing knot of setting of the stretch hole
Structure, drawing structure one end are fixed in removable disk 4, and the other end passes through 3 center of chassis and stretches out outside outer sheath 1；By leading
Pull-up structure, may be implemented the movement of removable disk 4, to realize the opening and closure of multijaw structure 2.
The drawing structure is drawing item 43；It pulls item 43 and 4 integrally connected of removable disk or the drawing item 43 is tight
Block section 431 is arranged in the position of the over and under of adjacent removable disk 4, and drawing item 43 stretches out one circle of one end setting of outer sheath 1
Arc stretch ring 432；Drawing item 43 can be fixed in removable disk 4 by setting block section 431, to make to move
Disk 4 follows drawing item 43 mobile, and the setting of stretch ring pulls drawing item 43 convenient for operator.During stand tube is taken out,
It pulls item 43 to move forward, may further ensure that the pressure of front end contact surface, reduce and slip risk.
The block section 431 is set as cylindrical block section 431, and the diameter of cylindrical block section 431 is straight compared with stretch hole
Diameter is big；Such setting guarantees that drawing item 43 is fixedly secured in removable disk 4, to guarantee that pulling item 43 drives removable disk 4
It is mobile.
The ring spring structure 24 is welded with multijaw structure 2；Such setting can make multijaw structure 2 in not external force
Effect is lower and can open certain angle, so as to use lesser power drawing drawing silk that can sufficiently open multijaw structure 2.
In 1 front end outer side of outer sheath, location structure, outside of the location structure around 1 front end of outer sheath are set
Wall；Location structure the position of outer sheath 1 can be fixed, and prevent outer sheath 1 from the mobile deviation for leading to action direction occurs.
The location structure includes positioning gasbag 5, snorkel 51, inflatable structure；The positioning gasbag 5 is arranged in outer sheath
On the lateral wall of 1 front end；Described 51 one end of snorkel and 5 integrally connected of positioning gasbag, 51 other end of snorkel stretch out outer sheath 1
Outside is inflated to positioning gasbag 5 by inflatable structure, is affixed on 52 outer wall of gas cell in bile duct wall, plays and consolidate outer sheath 1
The purpose being scheduled in the middle part of bile duct.
Inflatable structure is set as gas cell 52, and 51 nozzle of snorkel for stretching out 1 one end of outer sheath integrally connects with gas cell 52
It connects, switch valve 521 is set between gas cell 52 and snorkel 51；Switch valve 521 is arranged can be after the completion of inflation by switch valve
521 close, and prevent the gas in positioning gasbag 5 from shedding, and open switch valve 521 after taking out bracket, release in positioning gasbag 5
Then it is external to be drawn out patient by gas for outer sheath 1.
In use, the internal outer sheath 1 with multijaw structure 2 is sent into patient's body, after reaching bracket position, squeeze
Air bag is pressed, the expansion of positioning gasbag 5 is heaved and is tightly attached on bile duct inner wall, to the position of outer sheath 1 be fixed, then
The control-rod 32 on chassis 3 is pushed to be moved to multijaw structure 2 outside outer sheath 1 forward, it is rear to be made by pulling drawing structure backward
Removable disk 4 moves backward the opening angle for increasing multijaw structure 2 with this, so that front end opening dimension is greater than bracket outer diameter and is socketed
Rear to unclamp drawing structure in stent outer, three-jaw then can be tightly attached to stent outer by elastic force by the ring spring of front end, finally
It is external that outer sheath 1 is drawn out patient.
Embodiment 3 is a kind of for bile duct and the claw type bracket removal equipment of pancreas
It is a kind of for bile duct and the claw type bracket removal equipment of pancreas comprising outer sheath 1, the multijaw structure 2 that can be stretched out,
Chassis 3 and removable disk 4, which is characterized in that the inside of outer sheath 1 is arranged in the multijaw structure 2；The multijaw structure 2 is set
It sets on chassis 3, a ring spring structure 24 is arranged in 2 front end of multijaw structure；One control chassis 3 of setting is moved on the chassis 3
A removable disk 4 is arranged in front of chassis 3 in dynamic control structure；4 center setting of removable disk, the one drawing structure, drawing knot
Structure passes through 3 center of chassis and stretches out from 1 rear end of outer sheath；Control structure is stretched out after outer sheath 1 from outer sheath 1；Multijaw structure
2 with the connection on chassis 3 be the mode that is rotatably connected；The perforation passed through for multijaw structure 2 is set in removable disk 4；Multijaw structure
2 each pawl is inclined outwardly from chassis 3, and the multijaw structure 2 of formation becomes larger forwards from chassis 3；Ring spring structure
24 are arranged in claw-type structure front end；24 inside diameter of a circle of ring spring structure is less than bracket pipe outside diameter under non-deformed state；?
Location structure, lateral wall of the location structure around 1 front end of outer sheath is arranged in 1 front end outer side of outer sheath.Before use, being
Guarantee the smallest three-jaw size, removable disk 4 is set at larger-size 2 position of multijaw structure, reaches designated position
Afterwards, control structure is pushed by recession outer sheath 1 or forward, stretches out multijaw structure 2 from outer sheath 1, rear end is tied by control
Structure controls the position of three-jaw, is pulled back by pulling structure, makes becoming large-sized for multijaw structure 2, and front end is opened, and makes ring spring shape
At the elastic force of retraction, when front end auger Spread plane dimension to when being greater than bracket pipe outside diameter；By control control structure and drawing structure, move down
Multijaw structure 2 makes 2 sets of multijaw structure on the outside of stand tube, and rear to unclamp drawing structure, the ring spring of front end then can be by elastic force
Multijaw is encircled to stent outer, and is led to extract and.
The multijaw structure 2 is set as 3 pawls.
The chassis 3 is provided in round chassis 3, and 3 edge of circular base plate is arranged 3 notches, a company is respectively set in notch
Binding structure, connection structure are connect with multijaw structure 2, and multijaw structure 2 can relatively rotate in junction；Multijaw structure 2 passes through
Relatively rotate the opening and closure for realizing three-jaw.
The connection structure is set as cylindrical connecting column 31, and the interposition of the notch is arranged in the connecting column 31
It sets, the connecting column 31 and 3 integrally connected of chassis；The setting of cylindrical connecting column 31 rotates convenient for multijaw structure 2.
The connection ring 21 of the multijaw structure 2 including integrally connected, tilting section 22 and with hook segment 23, the connection ring 21 is set
It sets in the periphery of connecting column 31, the diameter of connection ring 21 is big compared with the diameter of connecting column 31, and connection ring 21 is shaft with connecting column 31
It relatively rotates；Band hook segment 23 is the inclined structure in portion slightly inwards；The setting of ring spring structure 24 is in band 23 front of hook segment.This
Setting of the kind with hook segment 23 can guarantee big grasping force when grasping.
The tilting section 22 is set as rectangular slab with the main body with hook segment 23, and the setting of rectangular slab has multijaw structure 2
Stronger stability and grasping force.
Control structure on the chassis 3 is set as control-rod 32.
32 main body of control-rod is set as the round and smooth rectangular configuration in edge, and one " L " is arranged in 32 free end of control-rod
Shape control-rod handle 321,32 handle of control-rod stretch out 1 outside of outer sheath；By push-and-pull control-rod 32 can with mobile chassis 3, from
And move the position of multijaw structure 2.
The removable disk 4 is provided in round removable disk 4, and 3 ellipse holes are arranged in round 4 edge of removable disk
42, the three-jaw of multijaw structure 2 is each passed through 3 ellipse holes 42, and the size of the ellipse hole 42 is compared with multijaw structure 2
Rectangular slab cross-sectional area size it is big；It can control the opening and closure of multijaw structure 2 by mobile removable disk 4.
The removable disk 4 and the round stretch hole 41 of 3 center setting of chassis one, the interior one drawing knot of setting of the stretch hole
Structure, drawing structure one end are fixed in removable disk 4, and the other end passes through 3 center of chassis and stretches out outside outer sheath 1；By leading
Pull-up structure, may be implemented the movement of removable disk 4, to realize the opening and closure of multijaw structure 2.
The drawing structure is drawing item 43；It pulls item 43 and 4 integrally connected of removable disk or the drawing item 43 is tight
Block section 431 is arranged in the position of the over and under of adjacent removable disk 4, and drawing item 43 stretches out one circle of one end setting of outer sheath 1
Arc stretch ring 432；Drawing item 43 can be fixed in removable disk 4 by setting block section 431, to make to move
Disk 4 follows drawing item 43 mobile, and the setting of stretch ring pulls drawing item 43 convenient for operator.During stand tube is taken out,
It pulls item 43 to move forward, may further ensure that the pressure of front end contact surface, reduce and slip risk.
The block section 431 is set as cylindrical block section 431, and the diameter of cylindrical block section 431 is straight compared with stretch hole
Diameter is big；Such setting guarantees that drawing item 43 is fixedly secured in removable disk 4, to guarantee that pulling item 43 drives removable disk 4
It is mobile.
The ring spring structure 24 is welded with multijaw structure 2；Such setting can make multijaw structure 2 in not external force
Effect is lower and can open certain angle, so as to use lesser power drawing drawing silk that can sufficiently open multijaw structure 2.
In 1 front end outer side of outer sheath, location structure, outside of the location structure around 1 front end of outer sheath are set
Wall；Location structure the position of outer sheath 1 can be fixed, and prevent outer sheath 1 from the mobile deviation for leading to action direction occurs.
The location structure includes positioning gasbag 5, snorkel 51, inflatable structure；The positioning gasbag 5 is arranged in outer sheath
On the lateral wall of 1 front end；Described 51 one end of snorkel and 5 integrally connected of positioning gasbag, 51 other end of snorkel stretch out outer sheath 1
Outside is inflated to positioning gasbag 5 by inflatable structure, is affixed on 52 outer wall of gas cell in bile duct wall, plays and consolidate outer sheath 1
The purpose being scheduled in the middle part of bile duct.
Inflatable structure is set as gas cell 52, and 51 nozzle of snorkel for stretching out 1 one end of outer sheath integrally connects with gas cell 52
It connects, switch valve 521 is set between gas cell 52 and snorkel 51；Switch valve 521 is arranged can be after the completion of inflation by switch valve
521 close, and prevent the gas in positioning gasbag 5 from shedding, and open switch valve 521 after taking out bracket, release in positioning gasbag 5
Then it is external to be drawn out patient by gas for outer sheath 1.
The outer sheath 1 is set as cylindrical, massive hose, and 3 channels are arranged in outer sheath 1, including drawing item 43 leads to
51 channel 13 of road 11,32 channel 12 of control-rod and snorkel；It is outer that such setting can guarantee that drawing item 43 and control-rod 32 follow
Sheath 1 is moved synchronously and is bent, and guarantees the control to front chassis 3 and removable disk 4.
One section of hollow pipe 14 is arranged in the front end of the outer sheath 1, and the length of hollow pipe 14 is not less than 2 part of multijaw structure
Total length, hollow pipe 14 can accommodate multijaw structure 2；Multijaw structure 2 is located in hollow pipe 14 before opening, avoids scratching
Bile duct.
In use, the internal outer sheath 1 with multijaw structure 2 is sent into patient's body, after reaching bracket position, squeeze
Air bag is pressed, the expansion of positioning gasbag 5 is heaved and is tightly attached on bile duct inner wall, to the position of outer sheath 1 be fixed, then
The control-rod 32 on chassis 3 is pushed to be moved to multijaw structure 2 out of hollow pipe 14 outside outer sheath 1 forward, it is rear by leading backward
Dragline pull-up structure makes removable disk 4 move backward the opening angle for increasing multijaw structure 2 with this, and front end opening dimension is made to be greater than branch
Frame outer diameter is simultaneously socketed in stent outer, rear to unclamp drawing structure, and three-jaw can be then tightly attached to by the ring spring of front end by elastic force
It is external to be finally drawn out patient by stent outer for outer sheath 1.
The explanation of above-described embodiment is only intended to understand the utility model.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the principle of this utility model, several improvement can also be carried out to the utility model, these change
Into also will be in the protection scope that fall into the utility model claims.
Claims (11)
1. a kind of for bile duct and the claw type bracket removal equipment of pancreas comprising outer sheath (1), the multijaw structure that can be stretched out
(2), chassis (3) and removable disk (4), which is characterized in that inside of multijaw structure (2) setting in outer sheath (1)；It is described
Multijaw structure (2) is arranged on chassis (3), and a ring spring structure (24) is arranged in multijaw structure (2) front end；The chassis
(3) the mobile control structure of one control chassis (3) of setting, is arranged a removable disk (4) in front of chassis (3) on；It is described removable
One drawing structure of disk (4) center setting, drawing structure pass through chassis (3) center and stretch out from outer sheath (1) rear end；Control structure warp
It is stretched out after crossing outer sheath (1) from outer sheath (1)；The connection of multijaw structure (2) and chassis (3) is the mode that is rotatably connected；It is removable
The perforation passed through for multijaw structure (2) is set on Moving plate (4)；Each pawl of multijaw structure (2) is inclined outwardly at chassis (3),
The multijaw structure (2) of formation becomes larger forwards from chassis (3)；Ring spring structure (24) is arranged in claw-type structure front end；
The internal diameter of a circle of ring spring structure (24) is less than bracket pipe outside diameter under non-deformed state；Outside the outer sheath (1) front end
Location structure, lateral wall of the location structure around outer sheath (1) front end is arranged in side.
2. the claw type bracket removal equipment according to claim 1 for being used for bile duct and pancreas, which is characterized in that the multijaw
3-6 pawl is arranged in structure (2).
3. the claw type bracket removal equipment according to claim 2 for being used for bile duct and pancreas, which is characterized in that the multijaw
Structure is preferably provided with 3 pawls.
4. the claw type bracket removal equipment according to claim 1 for being used for bile duct and pancreas, which is characterized in that the chassis
(3) it is provided in round chassis (3), 3 notches are arranged in circular base plate (3) edge, and a connection structure is respectively set in notch.
5. the claw type bracket removal equipment according to claim 4 for being used for bile duct and pancreas, which is characterized in that the connection
Structure setting is cylindrical connecting column (31), and the middle position of the notch, the connecting column is arranged in the connecting column (31)
(31) with chassis (3) integrally connected.
6. the claw type bracket removal equipment according to claim 2 for being used for bile duct and pancreas, which is characterized in that the multijaw
Structure (2) includes the connection ring (21) of integrally connected, tilting section (22) and with hook segment (23), and connection ring (21) setting is even
The periphery of column (31) is connect, the diameter of connection ring (21) is big compared with the diameter of connecting column (31), and connection ring (21) is with connecting column (31)
Shaft relatively rotates；Band hook segment (23) is the inclined structure in portion slightly inwards；Ring spring structure (24) setting is in band hook segment
(23) front.
7. the claw type bracket removal equipment according to claim 1 for being used for bile duct and pancreas, which is characterized in that described removable
Moving plate (4) is provided in round removable disk (4), and 3 ellipse holes (42), multijaw knot is arranged in round removable disk (4) edge
The three-jaw of structure (2) is each passed through 3 ellipse holes (42), and the size of the ellipse hole (42) is compared with multijaw structure (2)
The size of rectangular slab cross-sectional area is big.
8. the claw type bracket removal equipment according to claim 1 for being used for bile duct and pancreas, which is characterized in that described removable
Moving plate (4) and the round stretch hole (41) of chassis (3) center setting one, the interior one drawing structure of setting of the stretch hole, pull structure
One end is fixed on removable disk (4), and the other end passes through chassis (3) center and stretches out outer sheath (1) outside.
9. the claw type bracket removal equipment according to claim 1 for being used for bile duct and pancreas, which is characterized in that the positioning
Structure includes positioning gasbag (5), snorkel (51), inflatable structure；The positioning gasbag (5) is arranged in outer sheath (1) front end
On lateral wall；Described snorkel (51) one end and positioning gasbag (5) integrally connected, snorkel (51) other end stretch out outer sheath
(1) outside.
10. according to any one of claims 1 to 8 exist for bile duct and the claw type bracket removal equipment of pancreas, feature
In the outer sheath (1) is set as cylindrical, massive hose, and 3 channels, including drawing item (43) are arranged in outer sheath (1)
Channel (11), control-rod (32) channel (12) and snorkel (51) channel (13).
11. the claw type bracket removal equipment according to claim 9 for being used for bile duct and pancreas, which is characterized in that described outer
One section of hollow pipe (14) is arranged in the front end of sheath (1), and the length of hollow pipe (14) is not less than the overall length of multijaw structure (2) part
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822114652.4U CN209361004U (en) | 2018-12-17 | 2018-12-17 | It is a kind of for bile duct and the claw type bracket removal equipment of pancreas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822114652.4U CN209361004U (en) | 2018-12-17 | 2018-12-17 | It is a kind of for bile duct and the claw type bracket removal equipment of pancreas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209361004U true CN209361004U (en) | 2019-09-10 |
Family
ID=67833328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822114652.4U Active CN209361004U (en) | 2018-12-17 | 2018-12-17 | It is a kind of for bile duct and the claw type bracket removal equipment of pancreas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209361004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620490A (en) * | 2018-12-17 | 2019-04-16 | 中国医学科学院北京协和医院 | A kind of claw type bile duct and pancreas bracket removal equipment |
-
2018
- 2018-12-17 CN CN201822114652.4U patent/CN209361004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620490A (en) * | 2018-12-17 | 2019-04-16 | 中国医学科学院北京协和医院 | A kind of claw type bile duct and pancreas bracket removal equipment |
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