CN110338856A - Operation sheath transfer - Google Patents
Operation sheath transfer Download PDFInfo
- Publication number
- CN110338856A CN110338856A CN201910642802.5A CN201910642802A CN110338856A CN 110338856 A CN110338856 A CN 110338856A CN 201910642802 A CN201910642802 A CN 201910642802A CN 110338856 A CN110338856 A CN 110338856A
- Authority
- CN
- China
- Prior art keywords
- nodal plate
- fixedly connected
- steel wire
- steering
- inner tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/003—Steerable
- A61B2017/00305—Constructional details of the flexible means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/003—Steerable
- A61B2017/00318—Steering mechanisms
Abstract
The invention discloses a kind of operation sheath transfers, are related to technical field of medical equipment.Including housing parts, inner and outer tubes, housing parts include main casing and sub-shell, and the main casing is fixedly connected with sub-shell, form oval-shaped cavity；The main casing is provided with steering lock apparatus, including ship type switch and gear；The main casing inner wall is provided with resetting apparatus, and the resetting apparatus includes resetting cylinder, resets steel wire, return springs and reset screw；Steering control device, including sliding block and steering steel wire are provided on the sub-shell；Housing parts upper end is provided with scope locking device, including bushing；The lower end of inner and outer tubes is fixedly connected with bending section, and the bending section includes bending head, is bent tail portion and nodal plate；The present invention solves the problems, such as scope understeer in endoscopic surgery, can accurately control the steering of scope, and is provided with the device of fixed scope, convenient for the operation of medical worker.
Description
Technical field
The present invention relates to technical field of medical equipment more particularly to a kind of operation sheath transfers.
Background technique
With the development of medical technology, endoscopic technic has become the major technique overhauled with Minimally Invasive Surgery.
At present when doing endoscopic surgery, enter some cavities when have difficulties the case where, such as enter biliary tract when, position
It sets in 10 directions of duodenal side wall, upwarps a little.It is mainly combined at present using duodenoscope and ultra-fine gastroscope
Mode, duodenoscope enters biliary tract as steering assistance, ultra-fine gastroscope.This mode major defect is: duodenoscope
It is side-view mirror, the object of direction of advance can not be completely seen during advance, is difficult to find the biliary tract position on side wall
It sets.
A kind of Chinese utility model " medical instrument " of Publication No. CN201743767U provides a kind of for Interventional
The medical instrument of diagnosis and treatment gallbladder disease discloses the conduit for being inserted with several traction fibers in dependent claims 2, traction
Silk is inserted into distal end from the proximal end of conduit and stretches out, and traction fiber and catheter interstitial cooperate, and distal end and the end sheath of traction fiber are fixed
Connection, the proximal end of traction fiber is connect with the draw operations component for the proximal end that conduit is arranged in.The utility model passes through on conduit
The steering of traction fiber and draw operations component controls conduit is set, while controlling the steering of other component in conduit, it is preferable to solve
The problem of scope understeer of having determined, but the setting of draw operations component is simple, is not enough to preferably control the steering of scope, and does not have
There are the reset issues in view of traction fiber.
The Chinese utility model " being percutaneously inserted into auxiliary sheath through stomach choledochus scope " of Publication No. CN203763032U provides
It percutaneously is inserted into auxiliary sheath through stomach choledochus scope, including the sheath for descendant duodenum to be percutaneously inserted into and extended to through stomach
Ontology, the tail end of sheath tube body be connected with the integrally formed coiled pipe of sheath tube body, on the pipe shaft of coiled pipe be equipped be used for
The positioning wire of coiled pipe steering position is limited, one end of positioning wire is fixed on coiled pipe tail portion, and the other end is movably
Pipe shaft through sheath tube body extends to the head end of sheath tube body, and extends one section outward for stretching from the head end of sheath tube body
It include for tightening the sincere portion of the folder of positioning wire on the steel wire operating side with the steel wire operating side of fixed coiled pipe steering position
Part.The utility model preferably resolves scope understeer by the steering of positioning wire and the sincere component controls sheath of folder
Problem, but device setting is relatively simple, it is inconvenient.The reset issues of positioning wire are not accounted for, and after scope enters sheath
Without fixed device, operational inconvenient and hidden danger for security is brought.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of steerings for accurately controlling scope, and are capable of fixing the hand of scope
Art sheath transfer.
To solve the above problems, the technical solution of the present invention is as follows:
Including housing parts, the housing parts include main casing and sub-shell, and the main casing and sub-shell, which are fixed, to be connected
It connects, forms inner cavity；
The housing parts upper end, which is provided with, accommodates the channel that scope passes through, and channel part extends to the fixed company of housing cavity
It is connected to inner tube, said inner tube is hose, is stretched out through housing cavity lower end, and distal end is extended to；
The housing parts lower end is fixedly connected with outer tube, and the outer tube is screwed pipe, is coated at inner tube, extends to remote
End, the outer tube diameter are slightly larger than inner tube outside diameter, and steering steel wire can be accommodated and reset steel by being formed between the outer tube and inner tube
The space that silk passes through；
Steering control device is provided on the sub-shell, the steering control device is set as sliding block, and the sliding block is logical
It crosses slide block slot longitudinally-moving and is connected to subshell intracoelomic cavity, the sliding block is integrally formed, including slider button and slider body, described
Slider body is cuboid, and the slider button is set to slider body close to the end face center of sub-shell one end, through sliding block
Button hole protrudes from sub-shell surface, and slider button can vertically move in slider button hole, and the steering fixation with steel wire connects
It is connected to slider body lower end surface, through spatially extended to distal end between outer tube and inner tube；
The housing portion inner cavity is provided with resetting apparatus, and the resetting apparatus includes resetting cylinder, return springs and multiple
Position screw, the reset cylinder is longitudinally fixed to be connected to main casing inner wall, and the return springs are set to reset tube inner chamber, described
Reset screw and be fixedly connected on return springs upper end, described reset steel wire one end is fixedly connected on reset screw, the other end from
It resets cylinder lower end to be pierced by, extends to distal end through the gap between outer tube and inner tube.
Said inner tube and distal outer tube are provided with bending section, and the bending section includes bending head, are bent tail portion and nodal plate,
The bending head, is bent tail portion and nodal plate is the tubular of both ends end-cover-free, and the nodal plate is integrally formed, and the nodal plate is more
A, one annular end of nodal plate is axially disposed lug boss, and the lug boss is arc, is set as two along axisymmetrical,
Another annular end of nodal plate is axially disposed recessed portion, and the recessed portion is arc, is set as two along axisymmetrical, described convex
The portion of rising and recessed portion longitudinal centre line are overlapped, and shape size is identical, and the nodal plate inner wall is vertically arranged with hole portion, the hole portion
Nodal plate inner wall plane is protruded from, the hole portion is set as four, and two-by-two relatively, one pair of them are set to lug boss inner wall, another
To the plane at place perpendicular to the previous plane to place, the height of the nodal plate by two lug bosses it is opposite circumferentially
Even reduction, reach hole portion where position when be reduced to minimum, described bending tail portion one end is fixedly connected on outer tube, described curved
The bent tail portion other end is fixedly connected on the nodal plate being arranged successively along longitudinal direction, and the nodal plate lug boss corresponds to the recess of next nodal plate
Portion, the end nodal plate are connect with bending head, and the bending head is provided with annular end face, the annular far from nodal plate one end
End face is fixedly connected with inner tube, and the multiple nodal plate is connected to by being set to two connection steel wires of the hole portion of lug boss inner wall
Be bent head and bending tail portion, it is described reset steel wire and turn to steel wire one end pass through respectively another pair hole portion be fixedly connected on it is curved
The nodal plate of bent head annular end face and close bending head.
Further, the housing parts are provided with steering lock apparatus, and the steering lock apparatus can fix cunning
Block.
Further, the steering lock apparatus includes ship type switch and gear, and the ship type switch is longitudinally disposed, including
Ship type button and pedestal, the pedestal are fixedly connected on main casing inner wall, and the ship type button protrudes from main casing surface through hole,
The gear is duplicate gear, including canine tooth wheel portion and pinion part, is parallel to pedestal setting, is movably connected on base by axis
Seat, the ship type button are integrally formed, and are provided with retainer on gear side end face, the retainer be it is pointed, with button
Pressing can be inserted in the tooth socket of duplicate gear canine tooth wheel portion, and the slider body is longitudinally disposed with teeth on the end face of inner tube
Item portion, the pinion part are engaged with tooth-strip part.
Further, the return springs are spring.
Further, the housing parts upper end is provided with the connector being connected with inner tube, and the connector is hollow
Cylindrical, outer surface are provided with screw thread, and the connector has been connected through a screw thread scope locking device, the scope locking dress
It is set to upper surface and is not had the tubular of lower end surface, inner wall is provided with and connect the matched screw thread of head thread, the scope
Cylindrical cavity is formed with connector circular end face inside locking device, bushing is provided in the inner cavity, the bushing is sky
Heart cylinder type, the bushing are made of soft material, and scope locking device upper surface is provided centrally with circular aperture, institute
It is equal with bushing inner diameter and inner tube diameter to state hole diameter.
Further, scope locking device upper surface is provided with tapered hole part, and the tapered hole part is far from bushing one
Diameter is held to be greater than base diameter.
Further, the bushing is made of silica gel material.
Compared with prior art, the invention has the following beneficial effects:
1. solving the problems, such as scope understeer in endoscopic surgery.
2. the steering of scope can be accurately controlled.
3. sheath is provided with the device of fixed scope, convenient for the operation of medical worker.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is sub-shell direction schematic diagram of the present invention；
Fig. 2 is main casing direction schematic diagram of the present invention；
Fig. 3 is sub-shell schematic diagram；
Fig. 4 is main body diagram；
Fig. 5 is ship type switch and slide block schematic diagram；
Fig. 6 is bending section schematic diagram；
Fig. 7 is nodal plate schematic diagram；
Fig. 8 is bending section bending state schematic diagram；
Fig. 9 is scope locking device diagrammatic cross-section；
Figure 10 is the scope locking device diagrammatic cross-section for being provided with tapered hole part；
Wherein, 1 is main casing；2 be sub-shell；3 be connector；4 be housing parts lower end；5 switch for ship type；51 be ship
Type button；52 be pedestal；53 be retainer；54 be gear；6 be reset cylinder；7 be reset steel wire；8 be sliding block；81 be sliding block sheet
Body；82 be slider button；83 be tooth-strip part；9 be steering steel wire；10 be scope locking device；11 be bushing；12 be bending head
Portion；13 be bending tail portion；14 be nodal plate；141 be lug boss；142 be recessed portion；143 be hole portion；144 be connection steel wire；15 are
Inner tube；16 be outer tube；17 be tapered hole part.
Specific embodiment
In order to be easy to understand to technical means, creative features, achievable purpose and effectiveness of the invention, below with reference to tool
Body diagram, the present invention is further explained.
Embodiment 1:
As shown in figs 1-9 it is operation sheath transfer, including turns to steel wire 9 and reset steel wire 7.It further include housing section
Point, housing parts are made of main casing 1 and sub-shell 2, and the two is fixedly connected, and form inner cavity, the control of housing parts storing apparatus
Mechanism processed.
Housing parts upper end, which is provided with, accommodates the channel that scope passes through, and channel part extends to housing cavity and is fixedly connected with
Inner tube 15, inner tube 15 are hose, are stretched out through housing cavity lower end, extend to distal end, scope enters from housing parts upper end, through interior
Pipe 15 reaches working region.
Housing parts lower end 4 is fixedly connected with outer tube 16, and outer tube 16 is screwed pipe, can turn to, it is not possible to radial compression.
Outer tube 16 is coated at inner tube 15, extends to distal end, and the internal diameter of outer tube 16 is slightly larger than the outer diameter of inner tube 15, and being formed therebetween can be with
Accommodate the space for turning to that steel wire 9 and reset steel wire 7 pass through.
Steering control device is provided on sub-shell 2, steering control device is set as sliding block 8, and sliding block 8 is vertical by slide block slot
To being movably connected on subshell intracoelomic cavity.Sliding block 8 is integrally formed, including slider button 82, slider body 81.Slider body 81 is length
Cube shape, slider button 82 are set to slider body 81 close to the end face center of 2 one end of sub-shell, protrude from through slider button hole
2 surface of sub-shell.Slider button hole is ellipse, and slider button 82 is also ellipse, and slider button 82 can be in slider button
It is vertically moved in hole.It turns to steel wire 9 and is fixedly connected on 81 lower end surface of slider body, prolong through the gap between outer tube 16 and inner tube 15
Extend to distal end.Sliding slider button 82 drives slider body 81 to slide up and down, and steering steel wire 9 is driven to slide up and down therewith.
1 inner wall of main casing is provided with resetting apparatus, including resets cylinder 6, return springs and reset screw.Reset cylinder 6
It is longitudinally fixed to be connected to main casing inner wall.It resets 6 inner cavity of cylinder and is provided with return springs, it is preferred that return springs are to reset
Spring, return springs upper end are fixedly connected with reset screw, reset screw lower end and are fixedly connected on reset steel wire 7, reset steel
Silk 7 passes through return springs, is pierced by from 6 lower end surface of cylinder is resetted, and extends to distal end through the gap between outer tube 16 and inner tube 15.It is multiple
The setting of position device keeps the steering of bending section more light, while the steering of scope is more light.It is multiple and when endoscopic reduction
The elastic force that position elastic component provides makes the reset of bending section more smoothly.
Inner tube 15 and 16 distal end of outer tube are provided with bending section, including bending head 12, are bent tail portion 13 and nodal plate 14.Bending
Head 12, is bent tail portion 13 and nodal plate 14 is the tubular of both ends end-cover-free.Nodal plate 14 is integrally formed, and is had multiple.Nodal plate 14 1
Annular end is axially disposed lug boss 141.Lug boss 141 is arc, is set as two along axisymmetrical.Another ring of nodal plate 14
Shape end is axially disposed recessed portion 142, and recessed portion 142 is arc, is set as two along axisymmetrical.Lug boss 141 and recessed
142 longitudinal centre line of concave portion is overlapped, and shape size is identical.14 inner wall of nodal plate is vertically arranged with hole portion 143.Hole portion 143 is prominent
In 14 inner wall plane of nodal plate, four are set as, two-by-two relatively, one pair of them are set to 141 inner wall of lug boss, where another pair
Plane is perpendicular to the previous plane to place.The height of nodal plate 11 is opposite by two lug bosses 141 circumferentially uniformly to be reduced,
Minimum is reduced to when reaching the position at 143 place of hole portion.Bending 13 one end of tail portion is fixedly connected on outer tube 16, and the other end is fixed
It is connected to the nodal plate 14 being arranged successively along longitudinal direction.The recessed portion 142 of the corresponding next nodal plate 14 of 14 lug boss 141 of nodal plate.End segment
Piece 14 is connect with bending head 12, and bending head 12 is provided with annular end face, annular end face and inner tube 15 far from 14 one end of nodal plate
It is fixedly connected.Multiple nodal plates 14 by be set to two connection steel wires 144 of the hole portion 143 of 141 inner wall of lug boss be connected to it is curved
Bent head 12 and bending tail portion 13.It resets steel wire 7 and turns to steel wire 9 and bending is fixedly connected on by another pair hole portion 143 respectively
The nodal plate 14 of 12 annular end face of head and close bending head.The other end for resetting steel wire 7 is fixedly connected on housing cavity.
In use, reaching bending section, sliding slider button 82, so that it may adjust from housing parts Upper passage insertion scope
The direction of scope.
Embodiment 2:
Steering lock apparatus, including ship type switch 5 and gear are provided on main casing 1 as shown in Fig. 2, Fig. 4 and Fig. 5
54.Ship type switch 5 is longitudinally disposed, including ship type button 51 and pedestal 52.Pedestal 52 is fixedly connected on the inner wall of main casing 1, ship
Type button 51 is arranged on pedestal 52, protrudes from main casing surface through the hole on main casing 1.Gear 54 is duplicate gear, including
A coaxial gear wheel and a pinion gear, gear 54 are parallel to the setting of pedestal 52, are movably connected on pedestal 52 by axis.Ship
Type button 51 is integrally formed, and is provided with retainer 53 on the end face of 54 side of gear, retainer 53 be it is pointed, with button
Pressing can be inserted in the tooth socket of canine tooth wheel portion of gear 54, the rotation of limiting gear 54.Ship type switch 5 has two works of on and off
Make state, in the off state, retainer 53 blocks gear 54, the rotation of limiting gear 54.Slider body 81 is close to inner tube 15
End face on be vertically arranged with tooth-strip part 83, tooth-strip part 83 is engaged with 54 pinion part of gear.When slider button 82 moves up and down
When, drive tooth-strip part 83 to move up and down, band moving gear 54 rotates, and when gear 54 blocks, tooth-strip part 83 blocks therewith, sliding block sheet
Body 81 and the steering steel wire 9 for being fixedly connected on slider body 81 are also fixed therewith.When in use, the direction of scope is adjusted
Afterwards, ship type button 51 is clicked, so that it may lock the steering of scope.
Embodiment 3:
Picture 1-4, housing parts upper end is provided with the connector 3 being connected with inner tube 15 shown in Fig. 9 and Figure 10.Connection
First 3 be the hollow cylinder bodily form, and outer surface is provided with screw thread, and connector 3 has been connected through a screw thread scope locking device 10.Scope lock
Tight device 10 is with upper surface and without the tubular of lower end surface, and inner wall is provided with screw thread matched with 3 screw thread of connector.It is interior
10 inside of mirror locking device forms cylindrical cavity with 3 circular end face of connector, is provided with bushing 11 in inner cavity.Bushing 11 is sky
Heart cylinder type, is made of flexible material, further, is made of silica gel material.10 circular end face center of scope locking device
It is provided with circular aperture, diameter is equal with 11 internal diameter of bushing and 15 internal diameter of inner tube；In use, scope locking device 10 is unscrewed,
Scope is inserted into from circular aperture, scope reaches inner tube 15 through bushing 11 and the first connector 3, then tightens scope locking device
10, scope locking device 10 oppresses bushing 11, the deformation of 11 longitudinal compression of bushing, while lateral expansion is pressed against scope, reaches lock
The purpose of tight scope.
Further, due to the bad insertion scope of circular aperture, 10 upper surface of scope locking device is provided with bellmouth
Portion 17, the diameter of end face is greater than the diameter of lower end surface thereon, is thus more convenient inserting for scope.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, essence of the invention is not being departed from
Under the premise of mind and range, various changes and improvements may be made to the invention, these changes and improvements both fall within claimed
In invention scope.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (7)
1. operation sheath transfer, including turn to steel wire and reset steel wire, it is characterised in that:
Including housing parts, the housing parts include main casing and sub-shell, and the main casing is fixedly connected with sub-shell, shape
At inner cavity；
The housing parts upper end, which is provided with, accommodates the channel that scope passes through, and channel part extends to housing cavity and is fixedly connected with
Inner tube, said inner tube are hose, are stretched out through housing cavity lower end, and distal end is extended to；
The housing parts lower end is fixedly connected with outer tube, and the outer tube is screwed pipe, is coated at inner tube, extends to distal end, institute
Outer tube diameter is stated slightly larger than inner tube outside diameter, steering steel wire can be accommodated by being formed between the outer tube and inner tube passes through with steel wire is resetted
Space；
Steering control device is provided on the sub-shell, the steering control device is set as sliding block, and the sliding block passes through cunning
Block slot longitudinally-moving is connected to subshell intracoelomic cavity, and the sliding block is integrally formed, including slider button and slider body, the sliding block
Ontology is cuboid, and the slider button is set to slider body close to the end face center of sub-shell one end, through slider button
Hole protrudes from sub-shell surface, and slider button can vertically move in slider button hole, and the steering fixation with steel wire is connected to
Slider body lower end surface, through spatially extended to distal end between outer tube and inner tube；
The housing portion inner cavity is provided with resetting apparatus, and the resetting apparatus includes resetting cylinder, return springs and reset spiral shell
Nail, the reset cylinder is longitudinally fixed to be connected to main casing inner wall, and the return springs are set to reset tube inner chamber, the reset
Screw is fixedly connected on return springs upper end, and described reset steel wire one end is fixedly connected on reset screw, and the other end is from reset
Cylinder lower end is pierced by, and extends to distal end through the gap between outer tube and inner tube；
Said inner tube and distal outer tube are provided with bending section, and the bending section includes bending head, is bent tail portion and nodal plate, described
Be bent head, be bent the tubular that tail portion and nodal plate are both ends end-cover-free, the nodal plate is integrally formed, the nodal plate be it is multiple,
One annular end of nodal plate is axially disposed lug boss, and the lug boss is arc, is set as two along axisymmetrical, nodal plate
Another annular end is axially disposed recessed portion, and the recessed portion is arc, is set as two along axisymmetrical, the lug boss
It is overlapped with recessed portion longitudinal centre line, and shape size is identical, the nodal plate inner wall is vertically arranged with hole portion, and the hole portion is prominent
In nodal plate inner wall plane, the hole portion is set as four, and two-by-two relatively, one pair of them are set to lug boss inner wall, another pair institute
Plane perpendicular to the previous plane to place, the height of the nodal plate circumferentially uniformly subtracts in opposite directions by two lug bosses
It is few, it is reduced to minimum when reaching the position where hole portion, described bending tail portion one end is fixedly connected on outer tube, the bending tail
Portion's other end is fixedly connected on the nodal plate being arranged successively along longitudinal direction, and the nodal plate lug boss corresponds to the recessed portion of next nodal plate, institute
It states end nodal plate to connect with bending head, the bending head is provided with annular end face, the annular end face far from nodal plate one end
It is fixedly connected with inner tube, the multiple nodal plate is connected to bending by being set to two connection steel wires of the hole portion of lug boss inner wall
Head and bending tail portion, described one end for resetting steel wire and turning to steel wire pass through another pair hole portion respectively and are fixedly connected on bending head
The nodal plate of portion's annular end face and close bending head.
2. operation sheath transfer according to claim 1, it is characterised in that: the housing parts are provided with steering
Locking device, the steering lock apparatus can fix sliding block.
3. operation sheath transfer according to claim 2, it is characterised in that: the steering lock apparatus includes ship
Type switch and gear, the ship type switch is longitudinally disposed, including ship type button and pedestal, the pedestal are fixedly connected on main casing
Inner wall, the ship type button protrude from main casing surface through hole, and the gear is duplicate gear, including canine tooth wheel portion and pinion gear
Portion is parallel to pedestal setting, is movably connected on pedestal by axis, the ship type button is integrally formed, on gear side end face
Be provided with retainer, the retainer be it is pointed, can be inserted with button press in the tooth socket of duplicate gear canine tooth wheel portion, it is described
Slider body is vertically arranged with tooth-strip part on the end face of inner tube, and the pinion part is engaged with tooth-strip part.
4. operation sheath transfer according to claim 1, it is characterised in that: the return springs are spring.
5. operation sheath transfer according to claim 1, it is characterised in that: the housing parts upper end is provided with
The connector being connected with inner tube, the connector are the hollow cylinder bodily form, and outer surface is provided with screw thread, and the connector passes through
It is threaded with scope locking device, the scope locking device is with upper surface and without the tubular of lower end surface, inner wall
It is provided with and connect the matched screw thread of head thread, formed in cylinder inside the scope locking device with connector circular end face
Chamber is provided with bushing in the inner cavity, and the bushing is hollow cylinder figure, and the bushing is made of soft material, it is described in
Mirror locking device upper surface is provided centrally with circular aperture, and the hole diameter is equal with bushing inner diameter and inner tube diameter.
6. operation sheath transfer according to claim 5, it is characterised in that: scope locking device upper surface
It is provided with tapered hole part, the tapered hole part is greater than base diameter far from bushing one end diameter.
7. operation sheath transfer according to claim 5 or 6, it is characterised in that: the bushing is silica gel material
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642802.5A CN110338856B (en) | 2019-07-16 | 2019-07-16 | Sheath tube steering device for operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642802.5A CN110338856B (en) | 2019-07-16 | 2019-07-16 | Sheath tube steering device for operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110338856A true CN110338856A (en) | 2019-10-18 |
| CN110338856B CN110338856B (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910642802.5A Active CN110338856B (en) | 2019-07-16 | 2019-07-16 | Sheath tube steering device for operation |
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| CN (1) | CN110338856B (en) |
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| CN101732027A (en) * | 2009-12-02 | 2010-06-16 | 夏萍 | Bendable steering endoscope |
| CN201743767U (en) * | 2010-08-03 | 2011-02-16 | 安瑞医疗器械(杭州)有限公司 | Medical appliance |
| CN203763032U (en) * | 2014-01-13 | 2014-08-13 | 东莞东华医院有限公司 | Auxiliary sheath for inserting endoscope into common bile duct through skin and stomach |
| CN104367372A (en) * | 2014-11-26 | 2015-02-25 | 江苏金鹿集团医疗器械有限公司 | Spine intervertebral epidural minimally-invasive equipment |
| CN205814279U (en) * | 2016-05-19 | 2016-12-21 | 圻逸科技股份有限公司 | Endoscope conduit tail end bend-controlling structures |
| CN107582015A (en) * | 2016-07-08 | 2018-01-16 | 深圳市先赞科技有限公司 | It is a kind of using equidistant spring and the endoscope plug-in package of support component |
| CN106730246A (en) * | 2017-01-16 | 2017-05-31 | 杭州唯强医疗科技有限公司 | It is adapted to the adjustable bent catheter of left-handed operation |
| CN107174724A (en) * | 2017-05-08 | 2017-09-19 | 杭州唯强医疗科技有限公司 | A kind of controllable adjustable bent catheter of deflection distance |
| CN108542340A (en) * | 2018-04-24 | 2018-09-18 | 海纳阳光（北京）医药控股有限公司 | A kind of nested type Flexible ureteroscope |
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