CN110338856B - Sheath tube steering device for operation - Google Patents
Sheath tube steering device for operation Download PDFInfo
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- CN110338856B CN110338856B CN201910642802.5A CN201910642802A CN110338856B CN 110338856 B CN110338856 B CN 110338856B CN 201910642802 A CN201910642802 A CN 201910642802A CN 110338856 B CN110338856 B CN 110338856B
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- 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
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- 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
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- 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
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- Heart & Thoracic Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses a sheath tube steering device for an operation, and relates to the technical field of medical equipment. The device comprises a shell part, an inner pipe and an outer pipe, wherein the shell part comprises a main shell and an auxiliary shell, and the main shell and the auxiliary shell are fixedly connected to form an oval inner cavity; the main shell is provided with a steering locking device which comprises a ship-shaped switch and a gear; the inner wall of the main shell is provided with a reset device, and the reset device comprises a reset cylinder, a reset steel wire, a reset elastic piece and a reset screw; the auxiliary shell is provided with a steering control device which comprises a sliding block and a steering steel wire; the upper end of the shell part is provided with an endoscope locking device which comprises a lining; the lower ends of the inner pipe and the outer pipe are fixedly connected with a bending part, and the bending part comprises a bending head part, a bending tail part and a segment; the endoscope steering device solves the problem of insufficient endoscope steering in endoscope operation, can accurately control the steering of the endoscope, and is provided with a device for fixing the endoscope, thereby facilitating the operation of medical staff.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a sheath tube steering device for an operation.
Background
With the development of medical technology, endoscopic technology has become the primary technique for fine examinations and minimally invasive surgery.
At present, when endoscopic surgery is performed, the situation that some cavities are difficult to enter exists, for example, when the cavities enter the biliary tract, the positions of the cavities are in the 10-point direction of the side wall of the duodenum, and the cavities are slightly upwarped. At present, a mode of entering a duodenoscope and an ultrafine gastroscope in a combined mode is mainly adopted, the duodenoscope is used as steering assistance, and the ultrafine gastroscope enters a biliary tract. The main disadvantages of this approach are: the duodenoscope is a side view mirror, and objects in the advancing direction cannot be seen completely in the advancing process, so that the position of a biliary tract on the side wall is difficult to find.
The chinese utility model "a medical instrument" with publication number CN201743767U provides a medical instrument for interventional diagnosis and treatment of gallbladder diseases, which discloses in the dependent claim 2 a catheter inserted with a plurality of traction wires, the traction wires are inserted from the proximal end to the distal end of the catheter and extend out, the traction wires are in clearance fit with the catheter, the distal end of the traction wires is fixedly connected with the end sheath, and the proximal end of the traction wires is connected with a traction operation component arranged at the proximal end of the catheter. The utility model discloses a through set up turning to of traction wire and traction operation part control pipe on the pipe, turning to of other parts in the simultaneous control pipe, better solution the scope turns to not enough problem, nevertheless traction operation part sets up simply, and the steering to of the control scope that is not enough better, and do not consider the problem of resetting of traction wire.
The utility model discloses a chinese utility model "percutaneous is inserted supplementary sheath through gastroenteric duct house steward scope" CN203763032U provides percutaneous is inserted supplementary sheath through gastroenteric duct house steward scope, including being used for percutaneous to insert and extend to the sheath pipe body of duodenum descending part through the stomach, the end connection of sheath pipe body has the coiled pipe with sheath pipe body integrated into one piece, be equipped with the location steel wire that is used for restricting the coiled pipe steering position on the pipe shaft of coiled pipe, the one end of location steel wire is fixed at the coiled pipe afterbody, its other end is mobile extends to the head end of sheath pipe body through the pipe shaft of sheath pipe body, and outwards extend one section steel wire operation end that is used for tensile and fixed coiled pipe steering position from the head end of sheath pipe body, including the sincere part of clamp that is used for tightening up the location steel wire on this steel wire operation end. The utility model discloses a through the location steel wire with press from both sides turning to of sincere part control sheath pipe, better solution the scope turns to not enough problem, but the device sets up comparatively simply, the operation is inconvenient. The reset problem of the positioning steel wire is not considered, and no fixing device is arranged after the endoscope enters the sheath tube, so that inconvenience in operation and potential safety hazards are brought.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a sheath tube steering device for operation, which can accurately control the steering of an endoscope and can fix the endoscope.
In order to solve the problems, the technical scheme of the invention is as follows:
the shell comprises a shell part, wherein the shell part comprises a main shell and an auxiliary shell, and the main shell and the auxiliary shell are fixedly connected to form an inner cavity;
the upper end of the shell part is provided with a channel for accommodating an endoscope to pass through, the channel part extends to the inner cavity of the shell and is fixedly connected with an inner tube, and the inner tube is a hose and extends out from the lower end of the inner cavity of the shell to the far end;
the lower end of the shell part is fixedly connected with an outer pipe, the outer pipe is a threaded pipe, is sleeved outside the inner pipe and extends to the far end, the inner diameter of the outer pipe is slightly larger than the outer diameter of the inner pipe, and a space for accommodating a steering steel wire and a reset steel wire to pass through is formed between the outer pipe and the inner pipe;
the auxiliary shell is provided with a steering control device, the steering control device is arranged as a sliding block, the sliding block is longitudinally and movably connected to the inner cavity of the auxiliary shell through a sliding block groove, the sliding block is integrally formed and comprises a sliding block button and a sliding block body, the sliding block body is cuboid, the sliding block button is arranged at the center of the end face of the sliding block body, close to one end of the auxiliary shell, and protrudes out of the surface of the auxiliary shell through a sliding block button hole, the sliding block button can longitudinally move in the sliding block button hole, and the steering steel wire is fixedly connected to the lower end face of the sliding block body and extends to the far end through the;
the utility model discloses a reset device, including the casing part inner chamber, the casing part inner chamber is provided with resetting means, resetting means is including a section of thick bamboo that resets, the elastic component that resets and reset screw, the vertical fixed connection of a section of thick bamboo that resets is in main internal wall, the elastic component that resets sets up in a section of thick bamboo inner chamber that resets, reset screw fixed connection in the elastic component upper end that resets, steel wire one end fixed connection that resets in reset screw, the other end is worn out from a section of thick bamboo lower extreme that resets, and the clearance between.
The bending part is arranged at the far end of the inner pipe and the far end of the outer pipe, the bending part comprises a bending head part, a bending tail part and a plurality of segments, the bending head part, the bending tail part and the segments are all cylindrical without end covers at two ends, the segments are integrally formed, a plurality of segments are arranged, a protruding part is axially arranged at one annular end of each segment, the protruding parts are arc-shaped and symmetrically arranged along the axis, a recessed part is axially arranged at the other annular end of each segment, the recessed parts are arc-shaped and symmetrically arranged along the axis, the longitudinal central lines of the protruding parts and the recessed parts are superposed and have the same shape and size, hole parts are longitudinally arranged on the inner wall of each segment, the hole parts protrude out of the plane of the inner wall of each segment, the hole parts are four and are opposite to each other, one pair of the hole parts is arranged on the inner wall of the protruding part, the plane of the other pair of the protruding parts is perpendicular to the, reduce the minimums when reacing the position at hole portion place, crooked afterbody one end fixed connection is in the outer tube, crooked afterbody other end fixed connection is in the festival piece of vertically arranging in proper order along, the depressed part of festival piece bellying corresponds next festival piece, terminal festival piece is connected with crooked head, crooked head is kept away from festival piece one end and is provided with the ring terminal surface, ring terminal surface and inner tube fixed connection, a plurality of festival pieces are connected in crooked head and crooked afterbody through two connecting wires that set up in the hole portion of bellying inner wall, the steel wire that resets and the one end that turns to the steel wire are respectively through another to hole portion fixed connection in crooked head ring terminal surface and the festival piece that is close to crooked head.
Further, the housing portion is provided with a steering lock device, which can fix the slider.
Further, turn to locking device and include ship type switch and gear, the vertical setting of ship type switch, including ship type button and base, base fixed connection is in main internal wall of casing, ship type button protrudes in main internal wall of casing surface through the hole, the gear is duplicate gear, including big gear portion and pinion portion, is on a parallel with the base setting, through axle swing joint in base, ship type button integrated into one piece is close to and is provided with the locking part on the gear side end face, the locking part is the point shape, presses along with the button and can insert in the tooth's socket of big gear portion of duplicate gear, the slider body is close to and vertically is provided with rack portion on the terminal surface of inner tube, pinion portion and rack portion mesh.
Further, the elastic restoring piece is a spring.
Further, casing part upper end is provided with the connector that is linked together with the inner tube, the connector is hollow cylinder, and the surface is provided with the screw thread, the connector has scope locking device through threaded connection, scope locking device is for having the up end and not having the cylindric of terminal surface down, and the inner wall is provided with the screw thread supporting with the connector screw thread, scope locking device is inside to form cylindrical inner chamber with the connector circular end face, be provided with the bush in the inner chamber, the bush is hollow cylinder size, the bush is made for soft materials, scope locking device up end center is provided with circular aperture, aperture diameter equals with bush internal diameter and inner tube internal diameter.
Furthermore, the upper end face of the endoscope locking device is provided with a conical hole part, and the diameter of one end, far away from the bushing, of the conical hole part is larger than that of the bottom of the conical hole part.
Further, the lining is made of a silica gel material.
Compared with the prior art, the invention has the following beneficial effects:
1. the problem of endoscope steering insufficiency in the endoscope operation is solved.
2. The steering of the endoscope can be accurately controlled.
3. The sheath tube is provided with a device for fixing the endoscope, so that the operation of medical staff is facilitated.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the orientation of the sub-housing of the present invention;
FIG. 2 is a schematic view of the main housing of the present invention;
FIG. 3 is a schematic view of the sub-housing;
FIG. 4 is a schematic view of the main housing;
FIG. 5 is a schematic view of a boat switch and slider;
FIG. 6 is a schematic view of a bend;
FIG. 7 is a fragmentary schematic view;
FIG. 8 is a view illustrating a bent state of the bending portion;
figure 9 is a cross-sectional view of an endoscope locking device;
figure 10 is a cross-sectional view of an endoscope locking device with a tapered bore portion;
wherein, 1 is a main shell; 2 is an auxiliary shell; 3 is a connector; 4 is the lower end of the shell part; 5 is a ship-shaped switch; 51 is a boat-shaped button; 52 is a base; 53 is a stopping part; 54 is a gear; 6 is a reset cylinder; 7 is a reset steel wire; 8 is a slide block; 81 is a sliding block body; 82 is a slider button; 83 is a rack portion; 9 is a steering steel wire; 10 is an endoscope locking device; 11 is a lining; 12 is a curved head; 13 is a curved tail; 14 are segments; 141 is a boss; 142 is a concave part; 143 is a hole portion; 144 is a connecting steel wire; 15 is an inner tube; 16 is an outer tube; 17 are tapered bore portions.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the invention easy to understand, the invention is further described with reference to the specific drawings.
Example 1:
as shown in fig. 1-9, the sheath steering device for operation comprises a steering wire 9 and a restoring wire 7. The device also comprises a shell part, wherein the shell part consists of a main shell 1 and an auxiliary shell 2 which are fixedly connected to form an inner cavity, and the shell part contains a control mechanism of the device.
The upper end of the shell part is provided with a channel for accommodating an endoscope, the channel part extends to the inner cavity of the shell and is fixedly connected with an inner tube 15, the inner tube 15 is a hose and extends out from the lower end of the inner cavity of the shell and extends to a far end, and the endoscope enters from the upper end of the shell part and reaches a working area through the inner tube 15.
The lower end 4 of the housing portion is fixedly connected with an outer tube 16, and the outer tube 16 is a threaded tube which can be turned and cannot be radially compressed. An outer tube 16 is sleeved on the inner tube 15 and extends to the far end, the inner diameter of the outer tube 16 is slightly larger than the outer diameter of the inner tube 15, and a space for accommodating the steering steel wire 9 and the reset steel wire 7 is formed between the outer tube and the inner tube.
The auxiliary shell 2 is provided with a steering control device which is a sliding block 8, and the sliding block 8 is longitudinally and movably connected to the inner cavity of the auxiliary shell through a sliding block groove. The slider 8 is integrally formed and comprises a slider button 82 and a slider body 81. The slider body 81 is rectangular, and the slider button 82 is disposed at the center of the end face of the slider body 81 near one end of the sub-housing 2 and protrudes out of the surface of the sub-housing 2 through a slider button hole. The slider button hole is oval-shaped and the slider button 82 is also oval-shaped, and the slider button 82 is longitudinally movable in the slider button hole. The steering wire 9 is fixedly connected to the lower end surface of the slider body 81 and extends to the far end through the gap between the outer tube 16 and the inner tube 15. The sliding block button 82 drives the sliding block body 81 to slide up and down, and then drives the steering steel wire 9 to slide up and down.
The inner wall of the main shell 1 is provided with a reset device which comprises a reset cylinder 6, a reset elastic piece and a reset screw. The reset cylinder 6 is longitudinally and fixedly connected with the inner wall of the main shell. The inner chamber of the reset cylinder 6 is provided with a reset elastic part, preferably, the reset elastic part is a reset spring, the upper end of the reset elastic part is fixedly connected with a reset screw, the lower end of the reset screw is fixedly connected with the reset steel wire 7, the reset steel wire 7 passes through the reset elastic part, penetrates out from the lower end face of the reset cylinder 6 and extends to the far end through the gap between the outer tube 16 and the inner tube 15. The setting of resetting means makes turning to of flexion light more, and turning to of scope is light more simultaneously. And when the endoscope resets, the elastic force provided by the reset elastic piece enables the reset of the bending part to be smoother.
The distal ends of the inner tube 15 and the outer tube 16 are provided with bends including a bent head 12, a bent tail 13 and segments 14. The curved head 12, curved tail 13 and segments 14 are all cylindrical without end caps at both ends. The segment 14 is formed integrally with a plurality of segments. An annular end of the segment 14 is provided with a boss 141 in the axial direction. The protrusions 141 are arc-shaped and are symmetrically arranged in two along the axis. The other annular end of the segment 14 is provided with two concave parts 142 along the axial direction, and the concave parts 142 are arc-shaped and are symmetrically arranged along the axial line. The longitudinal center lines of the convex part 141 and the concave part 142 are overlapped and have the same shape and size. The segment 14 is provided with a hole 143 in the longitudinal direction. The hole portions 143 protrude from the inner wall plane of the segment 14, and are four in number, and two of the hole portions are opposite to each other, one pair of the hole portions is disposed on the inner wall of the protrusion 141, and the other pair of the hole portions is perpendicular to the plane of the previous pair. The height of the segment 11 is uniformly reduced in the circumferential direction from the two protrusions 141 toward each other, and is reduced to the minimum value when reaching the position of the hole 143. The bent tail 13 is fixedly connected at one end to an outer tube 16 and at the other end to segments 14 arranged in series in the longitudinal direction. The raised portion 141 of a segment 14 corresponds to the recessed portion 142 of the next segment 14. The end segment 14 is connected with the bending head 12, and one end of the bending head 12, which is far away from the segment 14, is provided with an annular end surface which is fixedly connected with the inner tube 15. The plurality of segments 14 are connected to the bending head 12 and the bending tail 13 by two connecting wires 144 provided in the hole portions 143 of the inner wall of the boss 141. The return wire 7 and the steering wire 9 are fixedly connected to the annular end surface of the bending head 12 and the segment 14 adjacent to the bending head through another pair of hole portions 143, respectively. The other end of the reset steel wire 7 is fixedly connected with the inner cavity of the shell.
In use, the endoscope is inserted through the upper end passage of the housing portion to the curved portion, and the slider button 82 is slid to adjust the orientation of the endoscope.
Example 2:
as shown in fig. 2, 4 and 5, a steering lock device including a boat switch 5 and a gear 54 is provided on the main casing 1. The boat-shaped switch 5 is longitudinally disposed and includes a boat-shaped button 51 and a base 52. The base 52 is fixedly attached to the inner wall of the main casing 1, and the boat-shaped button 51 is provided on the base 52 and protrudes from the surface of the main casing 1 through a hole in the main casing. The gear 54 is a duplicate gear comprising a large gear and a small gear which are coaxial, and the gear 54 is arranged parallel to the base 52 and movably connected to the base 52 through a shaft. The boat-shaped button 51 is integrally formed, and a stopper 53 is provided on an end surface on the side close to the gear 54, and the stopper 53 is pointed and can be inserted into a tooth groove of a large gear portion of the gear 54 in accordance with the pressing of the button to restrict the rotation of the gear 54. The boat switch 5 has two operating states of on and off, and in the off state, the stopper 53 catches the gear 54 to restrict the rotation of the gear 54. A rack portion 83 is longitudinally provided on an end surface of the slider body 81 near the inner tube 15, and the rack portion 83 meshes with the pinion portion of the gear 54. When the slider button 82 moves up and down, the rack portion 83 is driven to move up and down, the gear 54 is driven to rotate, when the gear 54 is clamped, the rack portion 83 is clamped, and the slider body 81 and the steering wire 9 fixedly connected to the slider body 81 are also fixed. When the steering lock is used, the steering of the endoscope can be locked by pressing the boat-shaped button 51 after the direction of the endoscope is adjusted.
Example 3:
as shown in fig. 1-4, 9 and 10, a connector 3 is provided at the upper end of the housing portion in communication with the inner tube 15. The connector 3 is in a hollow cylinder shape, the outer surface of the connector is provided with threads, and the connector 3 is connected with an endoscope locking device 10 through the threads. The endoscope locking device 10 is cylindrical and has an upper end face and a lower end face, and the inner wall of the endoscope locking device is provided with threads matched with the threads of the connector 3. The interior of the endoscope locking device 10 and the circular end face of the connector 3 form a cylindrical inner cavity, and a lining 11 is arranged in the inner cavity. The bushing 11 is a hollow cylinder made of a soft material, and further made of a silicone material. A small round hole is arranged in the center of the round end face of the endoscope locking device 10, and the diameter of the small round hole is equal to the inner diameter of the lining 11 and the inner diameter of the inner tube 15; during the use, unscrew scope locking device 10, insert the scope from circular aperture, the scope reachs inner tube 15 through bush 11 and first connector 3, then screws up scope locking device 10, and scope locking device 10 oppresses bush 11, and 11 vertical compression deformations of bush transversely expand simultaneously and squeeze down the scope, reach the purpose of locking the scope.
Furthermore, because the circular small hole is not easy to insert the endoscope, the upper end surface of the endoscope locking device 10 is provided with the conical hole part 17, and the diameter of the upper end surface is larger than that of the lower end surface, so that the insertion of the endoscope is more convenient.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. Sheath pipe turns to device for operation, including turning to the steel wire and the steel wire that resets, its characterized in that:
the shell comprises a shell part, wherein the shell part comprises a main shell and an auxiliary shell, and the main shell and the auxiliary shell are fixedly connected to form an inner cavity;
the upper end of the shell part is provided with a channel for accommodating an endoscope to pass through, the channel part extends to the inner cavity of the shell and is fixedly connected with an inner tube, and the inner tube is a hose and extends out from the lower end of the inner cavity of the shell to the far end;
the lower end of the shell part is fixedly connected with an outer pipe, the outer pipe is a threaded pipe, is sleeved outside the inner pipe and extends to the far end, the inner diameter of the outer pipe is slightly larger than the outer diameter of the inner pipe, and a space for accommodating a steering steel wire and a reset steel wire to pass through is formed between the outer pipe and the inner pipe;
the auxiliary shell is provided with a steering control device, the steering control device is arranged as a sliding block, the sliding block is longitudinally and movably connected to the inner cavity of the auxiliary shell through a sliding block groove, the sliding block is integrally formed and comprises a sliding block button and a sliding block body, the sliding block body is cuboid, the sliding block button is arranged at the center of the end face of the sliding block body, close to one end of the auxiliary shell, and protrudes out of the surface of the auxiliary shell through a sliding block button hole, the sliding block button can longitudinally move in the sliding block button hole, and the steering steel wire is fixedly connected to the lower end face of the sliding block body and extends to the far end through the;
the inner cavity of the shell part is provided with a reset device, the reset device comprises a reset cylinder, a reset elastic part and a reset screw, the reset cylinder is longitudinally and fixedly connected to the inner wall of the main shell, the reset elastic part is arranged in the inner cavity of the reset cylinder, the reset screw is fixedly connected to the upper end of the reset elastic part, one end of the reset steel wire is fixedly connected to the reset screw, the other end of the reset steel wire penetrates out of the lower end of the reset cylinder, and the reset steel wire extends to the far end through a gap between the outer;
the bending part is arranged at the far end of the inner pipe and the far end of the outer pipe, the bending part comprises a bending head part, a bending tail part and a plurality of segments, the bending head part, the bending tail part and the segments are all cylindrical without end covers at two ends, the segments are integrally formed, a plurality of segments are arranged, a protruding part is axially arranged at one annular end of each segment, the protruding parts are arc-shaped and symmetrically arranged along the axis, a recessed part is axially arranged at the other annular end of each segment, the recessed parts are arc-shaped and symmetrically arranged along the axis, the longitudinal central lines of the protruding parts and the recessed parts are superposed and have the same shape and size, hole parts are longitudinally arranged on the inner wall of each segment, the hole parts protrude out of the plane of the inner wall of each segment, the hole parts are four and are opposite to each other, one pair of the hole parts is arranged on the inner wall of the protruding part, the plane of the other pair of the protruding parts is perpendicular to the, the bending tail part is fixedly connected to the outer pipe, the other end of the bending tail part is fixedly connected to the segments which are sequentially arranged along the longitudinal direction, the protruding parts of the segments correspond to the recessed parts of the next segment, the tail end segments are connected with the bending head part, one end, far away from the segments, of the bending head part is provided with an annular end face, the annular end face is fixedly connected with the inner pipe, the segments are connected to the bending head part and the bending tail part through two connecting steel wires arranged at the hole parts of the inner wall of the protruding parts, and one ends of the reset steel wire and the steering steel wire are fixedly connected to the annular end face of the bending head part and the segments close to the bending head part through another pair of hole parts respectively;
the shell part is provided with a steering locking device which can fix the sliding block;
the steering locking device comprises a boat-shaped switch and a gear, the boat-shaped switch is longitudinally arranged and comprises a boat-shaped button and a base, the base is fixedly connected to the inner wall of the main shell, the boat-shaped button protrudes out of the surface of the main shell through a hole, the gear is a duplicate gear and comprises a large gear part and a small gear part, the large gear part and the small gear part are arranged in parallel to the base and movably connected to the base through a shaft, the boat-shaped button is integrally formed, a stop part is arranged on the end face close to the side of the gear, the stop part is pointed, the stop part can be inserted into a tooth groove of the large gear part of the duplicate gear along with the pressing of the button, a rack part is longitudinally arranged on the;
casing part upper end is provided with the connector that is linked together with the inner tube, the connector is hollow cylinder, and the surface is provided with the screw thread, there is scope locking device the connector through threaded connection, scope locking device is for having the up end and not having the cylindric of terminal surface down, and the inner wall is provided with the screw thread supporting with the connector screw thread, scope locking device is inside to form cylindrical inner chamber with the circular terminal surface of connector, be provided with the bush in the inner chamber, the bush is hollow cylinder, the bush is made for soft materials, scope locking device up end center is provided with circular aperture, aperture diameter equals with bush internal diameter and internal diameter of tubes.
2. The surgical sheath steering device according to claim 1, wherein: the reset elastic piece is a spring.
3. The surgical sheath steering device according to claim 1, wherein: the endoscope locking device is characterized in that a conical hole part is formed in the upper end face of the endoscope locking device, and the diameter of one end, far away from the bushing, of the conical hole part is larger than that of the bottom of the endoscope locking device.
4. The surgical sheath steering device according to claim 1, wherein: the bush is made of silica gel materials.
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 CN110338856A (en) | 2019-10-18 |
| CN110338856B true 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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| Country | Link |
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| CN (1) | CN110338856B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113057565A (en) * | 2021-03-07 | 2021-07-02 | 杭州洁伊医疗器械有限公司 | Ureter endoscope |
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| CN101732027B (en) * | 2009-12-02 | 2015-01-07 | 武汉佑康科技有限公司 | 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 |
| CN106730246B (en) * | 2017-01-16 | 2019-08-09 | 杭州唯强医疗科技有限公司 | It is suitble 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 |
| CN108542340B (en) * | 2018-04-24 | 2024-03-12 | 海纳阳光（北京）医药控股有限公司 | Nested ureteral soft lens |
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2019
- 2019-07-16 CN CN201910642802.5A patent/CN110338856B/en active Active
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| CN110338856A (en) | 2019-10-18 |
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