CN115414079B - Switching adjusting structure and adjustable bent sheath tube - Google Patents

Switching adjusting structure and adjustable bent sheath tube Download PDF

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Publication number
CN115414079B
CN115414079B CN202211381767.4A CN202211381767A CN115414079B CN 115414079 B CN115414079 B CN 115414079B CN 202211381767 A CN202211381767 A CN 202211381767A CN 115414079 B CN115414079 B CN 115414079B
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CN
China
Prior art keywords
adjusting
piece
adapter
switching
adaptor
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Active
Application number
CN202211381767.4A
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Chinese (zh)
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CN115414079A (en
Inventor
刘文菁
唐斌
张元壮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Meichuang Medical Technology Co ltd
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Suzhou Meichuang Medical Technology Co ltd
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Priority to CN202211381767.4A priority Critical patent/CN115414079B/en
Publication of CN115414079A publication Critical patent/CN115414079A/en
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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0127—Magnetic means; Magnetic markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0136—Handles therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0158—Tip steering devices with magnetic or electrical means, e.g. by using piezo materials, electroactive polymers, magnetic materials or by heating of shape memory materials
    • 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
    • A61B2017/00314—Separate linked members
    • 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
    • A61B2017/00323—Cables or rods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M2025/0161—Tip steering devices wherein the distal tips have two or more deflection regions

Abstract

The invention discloses a switching adjusting structure and an adjustable bent sheath tube, wherein the switching adjusting structure comprises a shell, a switching structure, a first adjusting piece, a second adjusting piece and an operating piece, the switching structure comprises a switching piece, and the switching piece is movably arranged in the shell in a penetrating way; the operating piece is rotatably arranged in the shell and is detachably connected with the adapter piece through the magnetic attraction structure; when the adapter part is driven by external force to pull in and move with the operation part, the adapter part can be respectively locked with the first adjusting part and the second adjusting part, so that the corresponding adjusting part drives the adapter part to move, and the corresponding adjusting part performs bending adjustment operation. According to the switching and adjusting structure, the adapter part and the operating part are configured into a connectable and separable connecting form through the magnetic attraction structure, free bending adjustment of the bending adjusting assembly is promoted, an operator can perform bending adjustment operation by switching the holding position of the adjusting structure, the convenience of operation is effectively improved, and the application scene of the bending adjustable sheath tube in a clinical environment is enlarged.

Description

Switching adjusting structure and adjustable bent sheath tube
Technical Field
The invention relates to the technical field of medical instruments, in particular to a switching adjusting structure and an adjustable bent sheath tube.
Background
Adjustable curved sheaths have been widely used in minimally invasive interventional diagnostic and therapeutic procedures, which are commonly used to create channels, deliver or retrieve instruments, deliver drugs, or remove bodily fluids. Compared with a common sheath, the sheath has a bending adjusting function, the direction of the far end of the sheath is adjusted through the guidance of an instrument, free bending adjustment of a local area is carried out, an expected instrument or medicine can be quickly and accurately transmitted to a target lesion position, lesion tissues can be effectively treated, operation time is greatly shortened, and the degree of damage to a human body is reduced.
In the prior art, the bending-adjustable sheath tube generally comprises a handle, a bending-adjusting mechanism and a bent tube, wherein the bending-adjusting mechanism is installed on the handle, the bent tube is connected to the distal end of the handle, the bending-adjusting end of the bending-adjusting mechanism is connected to the distal end of the bent tube, and the distal end of the bent tube is pulled by the bending-adjusting mechanism to bend the bent tube, so that the orientation of the distal end port of the bent tube is adjusted. The adjustable bent sheath pipe of this structure, the adjustable bent position that the mechanism of bending has the single accent of gripping on the handle, and the flexible degree of bending is low, and the accent is bent and is easily received the structural constraint, and at the operation in-process, needs doctor personnel to carry out the operation of performing the operation through the cooperation of both hands jointly, and the position of bending is transferred in single operation can restrict doctor personnel and adjust the ability that self gripped the gesture, has limited the nimble application of adjustable bent sheath pipe in clinical, and it has the inconvenient operation, transfers the limited problem of bending.
Disclosure of Invention
The invention aims to solve the technical problems that the bending adjusting position of the adjustable bending sheath tube in the prior art can limit the capability of a doctor for adjusting the holding posture of the doctor, and the defects of inconvenient operation and limited bending adjustment exist.
The invention provides a switching regulation structure, comprising:
a housing;
the switching structure comprises a switching piece, the switching piece is suitable for being connected with the bending adjusting assembly, and the switching piece can movably penetrate through the shell;
the first adjusting piece and the second adjusting piece are arranged at intervals and are configured to be in rotating connection with the shell;
the operating piece is rotatably arranged in the shell, the operating piece is detachably connected with the adapter piece through a magnetic attraction structure, and the operating piece is used for driving the adapter piece to slide relative to the shell; the magnetic attraction structure comprises a first magnetic attraction piece and a second magnetic attraction piece, the first magnetic attraction piece is installed on the adapter piece, and the second magnetic attraction piece is installed on the operating piece; under the driving of external force, the first magnetic attraction piece and the second magnetic attraction piece have close attraction state and far separation state; in the attraction state, the operating piece and the adapter piece can synchronously slide relative to the shell under the action of external force; in the separated state, the operating piece can be in sliding fit relative to the shell under the action of external force, and the near end of the adapter is abutted against the shell;
when the switching piece is driven by external force to be attracted and connected with the operating piece to move, the switching piece is locked with the first adjusting piece and separated from the second adjusting piece, so that the first adjusting piece adjusts the first adjusting state of the bending adjusting assembly, and is separated from the first adjusting piece and locked with the second adjusting piece, so that the second adjusting piece adjusts the second adjusting state of the bending adjusting assembly, and the switching piece is switched between the first adjusting state and the second adjusting state.
Optionally, the operating part includes an operating body and a handle part, one end of the operating body is fixedly connected with the handle part, the other end of the operating body is detachably connected with the adaptor, one end of the handle part, which is far away from the operating body, penetrates through the shell and extends out of the shell, and the handle part is used for driving the adaptor to slide; and/or
The adapter is movably sleeved in the adjusting piece, the switching structure comprises a first connecting part and a second connecting part, and any one of the connecting parts is arranged on the outer wall surface of the adapter and faces one side of the shell;
the first adjusting piece is provided with a first mounting part, and the first mounting part is movably connected with the first connecting part; the second adjusting piece is provided with a second mounting part which is movably connected with the second connecting part; any one of the mounting portions is arranged in the adjusting piece;
in the connecting part and the mounting part which are correspondingly arranged, one of the connecting part and the mounting part is a non-circular shaft, and the other one of the connecting part and the mounting part is a non-circular hole.
Optionally, be equipped with spacing portion on the casing, spacing shaping of portion is in on the casing, spacing portion with handle portion rotates and is connected, spacing portion is used for the restriction the turned angle of handle portion.
Optionally, the adapter structure further comprises a first protruding portion and a second protruding portion, and the protruding portions are convexly disposed on one side of the connecting portion facing the housing; and/or
The first accommodating part is arranged on the first adjusting part, the second accommodating part is arranged on the second adjusting part, the accommodating part is formed in the adjusting part, the first accommodating part and the first protruding part are correspondingly arranged, the second accommodating part and the second protruding part are correspondingly arranged, and the accommodating part and the installation part are arranged in an adjacent mode.
Optionally, the limiting part is an arc-shaped groove, and a central angle of the arc-shaped groove is C1;
the handle part is an arc-shaped sheet body, and the central angle of the arc-shaped sheet body is C2;
a projection angle of a first connecting line of the first boss and the extension axis of the adapter and a second connecting line of the second boss and the extension axis of the adapter on a cross section perpendicular to the extension axis of the adapter is C3, and the following formula is satisfied: c1= C2+ C3.
Optionally, the adaptor is of a cylindrical structure, the connecting portion is distributed on the cylindrical structure in a rotation center manner, and a rotation center line of the connecting portion and an axis of the cylindrical structure are arranged in a collinear manner.
Optionally, the connecting portions are distributed around the axis of the cylindrical structure to form a regular polygon structure.
Optionally, at least two adjusting areas are formed on the shell, and the adjusting areas are arranged corresponding to the adjusting pieces;
the adjusting area is an arc-shaped groove structure constructed on the shell, the central angle of the arc-shaped groove structure is 30-360 degrees, and the projections of at least two arc-shaped groove structures along the radial cross section of the arc-shaped groove structures are arranged in a superposition mode or a staggered mode; and/or
The adjusting piece is provided with at least part of an operation end surface and is arranged in the adjusting area, and the radial dimension of the adjusting piece is smaller than or equal to the radial dimension of the shell at the adjusting area.
Optionally, a constraint part is arranged in the housing, the constraint part is arranged on an inner wall surface of the housing facing the sliding direction of the adaptor, the constraint part is used for constraining the sliding stroke of the adaptor, and the constraint part is in form fit with the adaptor; and/or
At least one supporting part is arranged in the shell, the supporting part is movably abutted and matched with the adaptor, and the supporting part and the connecting part are arranged in a staggered manner; and/or
The adjusting piece is provided with a flange part, the flange part is arranged on one side of the adjusting piece far away from the adaptor piece, and the flange part is used for restraining the sliding stroke of the adaptor piece; and/or
The shell is provided with a joint part which is used for being matched with the adjusting piece in a rotating and abutting mode; and/or
And the adjusting piece is provided with a positioning part, and the positioning part is used for being matched with the shell in a rotating and abutting mode.
An adjustable bend sheath, comprising:
a bending adjusting component;
and the switching adjusting structure is fixedly connected with the bending adjusting assembly.
Optionally, transfer curved subassembly to include driving medium, pull wire and transfer the return bend, the driving medium is installed in the adaptor, the near-end of pull wire with driving medium fixed connection, transfer the near-end of return bend with casing fixed connection, transfer the far-end of return bend with the far-end fixed connection of pull wire, the adaptor with be equipped with helicitic texture between the driving medium, the adaptor passes through under the exogenic action helicitic texture transmission the driving medium, so that the driving medium drives the pull wire removes along first direction or second direction, first direction with the opposite setting of second direction.
Optionally, the bending adjusting device further comprises an inner channel, and the inner channel is arranged in the bending adjusting assembly and the switching adjusting structure in a penetrating manner;
and the hemostatic assembly is arranged on the switching and adjusting structure and is used for plugging the inner channel.
The technical scheme provided by the invention has the following advantages:
1. the invention provides a switching adjustment structure, which comprises a shell, a switching structure, a first adjusting piece, a second adjusting piece and an operating piece, wherein the switching structure comprises a switching piece, the switching piece is suitable for being connected with a bending adjustment assembly, and the switching piece is movably arranged in the shell in a penetrating way; the first adjusting piece and the second adjusting piece are arranged at intervals and are configured to be in rotating connection with the shell; the operating piece is rotatably arranged in the shell and is detachably connected with the adapter piece through the magnetic attraction structure; the magnetic attraction structure comprises a first magnetic attraction piece and a second magnetic attraction piece, the first magnetic attraction piece is arranged on the adapter piece, and the second magnetic attraction piece is arranged on the operating piece; the first magnetic attraction piece and the second magnetic attraction piece are provided with close attraction states and far separation states; in the attraction state, the operating part and the adapter part can synchronously slide relative to the shell under the action of external force; in a separated state, the operating piece can be in sliding fit relative to the shell under the action of external force, and the near end of the adapter piece is abutted against the shell; when the operating piece and the adapter piece are driven by external force to attract and move, the adapter piece is locked with the first adjusting piece and separated from the second adjusting piece so that the first adjusting piece adjusts the first adjusting state of the bending adjusting assembly, and is separated from the first adjusting piece and locked with the second adjusting piece so that the second adjusting piece adjusts the second adjusting state of the bending adjusting assembly, and the adapter piece is switched between the first adjusting state and the second adjusting state.
According to the switching and adjusting structure, the adaptor and the operating part are configured into a connecting form which can be connected, fixed and separated through the magnetic attraction structure, the first magnetic attraction part is fixedly connected with the adaptor, the second magnetic attraction part is fixedly connected with the operating part, and the shell limits the adaptor through the external force acting on the operating part, so that the operating part and the adaptor can generate relative displacement, and the first magnetic attraction part and the second magnetic attraction part are in a connecting state of approaching attraction and separating; when the magnetic attraction structure is in an attraction state, the adjusting part can drive the operating part and the adapter part to synchronously rotate so as to perform subsequent bending adjustment; when the magnetic attraction structure is in a separated state, the adjusting piece can drive the adaptor piece to rotate so as to perform subsequent bending adjustment; the interference between the appearance structure of the operating part and the whole switching structure can be avoided, the free bending adjustment of the bending adjustment assembly is limited, in the actual adjustment process, the magnetic suction structure can be selected to rotate the adapter under the separated state, so that the subsequent bending adjustment operation is carried out, the free bending adjustment of the bending adjustment assembly is promoted, the bending adjustment flexibility is improved, and the application of the bending adjustment angle is met; when the drive adaptor of external force links to each other with the operating parts actuation and slides, can make adaptor and first regulating part locking, adaptor and second regulating part separation, thereby transfer curved subassembly through first regulating part operation, also can make adaptor and first regulating part separation, the locking of second regulating part, thereby transfer curved subassembly through the operation of second regulating part, form two different regulation operating position on the casing, through switching regulation structure switching operation adjusting position, so that operator's switching is gripped and is implemented and adjust curved subassembly, it effectively improves the convenience of operation, thereby enlarge the application scene under the clinical environment of the adjustable curved sheath pipe.
2. According to the switching adjusting structure provided by the invention, the adapter is movably sleeved in the adjusting piece, the switching structure comprises a first connecting part and a second connecting part, and any connecting part is arranged on one side, facing the shell, of the outer wall surface of the adapter; the first adjusting piece is provided with a first mounting part which is movably connected with the first connecting part; the second adjusting piece is provided with a second mounting part which is movably connected with the second connecting part; any mounting part is arranged in the adjusting part; one of the connecting part and the mounting part is a non-circular shaft, and the other one is a non-circular hole.
The switching adjusting structure of the structure comprises an adjusting piece, wherein the adjusting piece is movably sleeved in the adjusting piece, when the adjusting piece moves to a position where a first connecting portion is connected with a first installation portion and a second connecting portion is separated from a second installation portion in a staggered mode, the first adjusting piece can drive the adjusting piece, the purpose of operating the first adjusting piece to bend a bending adjusting assembly is achieved, when the adjusting piece moves to a position where the first connecting portion is separated from the first installation portion in a staggered mode and the second connecting portion is connected with the second installation portion, the second adjusting piece can drive the adjusting piece, the purpose of operating the first adjusting piece to bend the bending adjusting assembly is achieved, the connecting portion and the installation portion which are correspondingly arranged are used for matched transmission between the adjusting piece and the adjusting piece, the connecting portion is configured to be a non-circular shaft, the installation portion is configured to be a non-circular hole, the connection portion is configured to be a non-circular shaft, and the installation portion is configured to be a non-circular shaft, and the transmission requirement for locking between the adjusting piece and the adjusting piece is met.
3. The adjustable bending sheath pipe provided by the invention comprises a bending adjusting assembly and a switching adjusting structure, wherein the switching adjusting structure is fixedly connected with the bending adjusting assembly. Through the external force effect adaptor, the adaptor is connected with different adjusting parts and locked, the adjusting parts of the switching adjusting structure and the selection adaptation can be switched, the suitable operation posture of an operator during application is met, and the convenience of operation is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an adjustable bending sheath according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a portion of an adjustable sheath according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of an adjustable bend sheath provided in an embodiment of the invention;
fig. 4 is a schematic perspective view of a housing in a switching adjustment structure provided in an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a housing in a toggle adjustment mechanism provided in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a switching adjustment structure provided in an embodiment of the present invention;
fig. 7 is a schematic structural view of an adjusting member in the switching adjustment structure provided in the embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of a transfer member in a switching adjustment mechanism according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a transfer unit in the switching adjustment structure provided in the embodiment of the present invention;
FIG. 10 is a schematic perspective view of an operating member of the switching adjustment structure provided in an embodiment of the present invention;
FIG. 11 is a schematic structural diagram of an operating member in a switching adjustment structure provided in an embodiment of the present invention;
fig. 12 is a schematic structural view of a proximal end face of a transfer member in a switching adjustment structure provided in an embodiment of the present invention;
fig. 13 is a schematic structural view of a housing and an alignment structure in a switching adjustment structure according to an embodiment of the disclosure;
fig. 14 is a schematic connection diagram of the housing and the alignment structure in the switching adjustment structure provided in the embodiment of the present invention;
FIG. 15 is a schematic view of a projection of a hinge along a central axis of the hinge in a switching adjustment configuration provided in an embodiment of the present invention;
FIG. 16 is an enlarged view of a portion of FIG. 2 at A;
fig. 17 is a schematic structural view of a transmission member and a fixing block in an adjustable bending sheath according to an embodiment of the present invention;
FIG. 18 is a schematic view of the connection between the transmission member and the pulling wire in the sheath with adjustable bending according to the embodiment of the present invention;
FIG. 19 is a schematic view of the connection between the pulling wire and the adjustable bending tube in the sheath tube according to the embodiment of the present invention;
fig. 20 is an exploded view of a hemostatic assembly within an adjustable bend sheath as provided in an embodiment of the invention;
description of reference numerals:
1-a shell; 11-a limiting part; 12-a constraint; 13-a support; 14-a regulatory region; 15-an engagement portion; 16-a first connection hole; 17-a second connection hole; 18-a first alignment portion; 19-a second alignment portion;
2-an adapter; 21-a first connection; 22-a second connection; 23-a first boss; 231-a first end face; 24-a second boss; 241-a second end face; 25-a first engagement;
3-a first adjustment member; 31-a first mounting portion; 32-a first receiving portion; 33-a first bead portion; 34-a first positioning portion; 35-a third alignment portion;
4-a second adjustment member; 41-fourth alignment portion;
5-an operating member; 51-an operating body; 52-a handle portion; 53-a second engagement;
6-a first magnetic attraction piece; 7-a second magnetic element;
8-bending adjusting components; 81-a transmission member; 82-fixing blocks; 83-adjusting a bent pipe; 84-a pull wire; 85-bending adjusting ring;
9-a hemostatic assembly; 91-valve seat; 92-an end cap; 93-hemostatic valve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the switching adjustment structure or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected", "connected" and "connecting" are to be construed broadly and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the following description, the proximal end is the side of the apparatus closer to the operator during use, and the distal end is the side farther from the operator.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a switching and adjusting structure, which is suitable for adjusting medical instruments and the like, and can improve the convenient adjustment and flexible operation capability of the medical instruments. As shown in fig. 1 to 6, the switching adjustment structure includes a housing 1, a switching structure, and a first adjustment member 3 and a second adjustment member 4 arranged at an interval, wherein either one of the adjustment members is configured to be rotatably connected with the housing 1, and the switching structure is mounted on the housing 1.
As shown in fig. 2, fig. 3 and fig. 6, the adapting structure includes an adapting piece 2, the adapting piece 2 is suitable for being connected with a bending adjusting assembly 8, the adapting piece 2 is movably inserted into the housing 1, and the adapting piece 2 is movably connected with a first adjusting piece 3 and a second adjusting piece 4; in the embodiment, the adaptor 2 is installed between the first adjusting part 3 and the second adjusting part 4, the first adjusting part 3 is arranged at the proximal end position of the adaptor 2, the second adjusting part 4 is arranged at the distal end position of the adaptor 2, and the adaptor 2 slides between the first adjusting part 3 and the second adjusting part 4 through external force driving, so that the proximal end part of the adaptor 2 is locked with the first adjusting part 3 and separated from the second adjusting part 4, and the first adjusting part 3 directly adjusts the bending adjusting component 8, and at the moment, the second adjusting part 4 does not participate in the transmission adjustment bending adjusting component 8; of course, the adapter 2 and the second adjusting part 4 can be locked and separated from the first adjusting part 3 through the action of external force, so that the second adjusting part 4 adjusts the bending adjusting component 8, and at the moment, the first adjusting part 3 does not participate in the transmission adjustment of the bending adjusting component 8; when one of the adjusting pieces is operated, even if the other adjusting piece is contacted and rotated, the rotation of the adapter piece 2 can not be caused, and the use mistake-proofing capability in switching can be improved. When the switching is implemented, the adaptor 2 is switched in a sliding mode between the two adjusting pieces, so that when an operator respectively grips the shell 1 by the left hand and the right hand, the adaptor 2 is adjusted through switching, the adaptor 2 is connected and locked with the two different adjusting pieces, the operator can select a proper operation gripping gesture to rotate the corresponding adjusting piece, the follow-up bending operation is realized, and the convenience of operation is improved. The direction of the sliding motion of the adaptor 2 towards the proximal end is a first direction, and the direction of the sliding motion of the adaptor 2 towards the distal end is a second direction, wherein the first direction and the second direction are arranged in a reverse direction.
As shown in fig. 2 to 9, the adaptor 2 is movably sleeved in the adjuster, and the adaptor structure includes a first connecting portion 21 and a second connecting portion 22, and any one of the connecting portions is disposed on the outer wall surface of the adaptor 2 toward one side of the housing 1. The first adjusting piece 3 is provided with a first mounting part 31, and the first mounting part 31 is movably connected with the first connecting part 21; the second adjusting part 4 is provided with a second mounting part which is movably connected with the second connecting part 22; either mounting portion is disposed within the adjustment member. In the present embodiment, the first adjusting member 3 is identical in structure to the second adjusting member 4.
In other embodiments, three or more adjusting members are provided, the adjusting members are mounted on the housing 1 at intervals, and any one of the adjusting members and the housing 1 is configured to be rotatably connected. In addition to the first adjusting member 3 arranged at the proximal end and the second adjusting member 4 arranged at the distal end, one or more adjusting members are arranged between the first adjusting member 3 and the second adjusting member 4, which are named as intermediate adjusting members (not shown in the figure), and the intermediate adjusting members are in sliding fit with the adapter member 2; correspondingly, the middle adjusting part is provided with a middle mounting part, the adaptor part 2 is provided with a middle connecting part matched with the middle mounting part, the middle adjusting part is matched and connected with the middle mounting part through the middle connecting part, so that the middle adjusting part is locked with the adaptor part 2, and an operator can drive the adaptor part 2 through the middle adjusting part to drive the bending adjusting component 8 to perform the bending adjusting process. Through the connection cooperation between middle regulating part and adaptor 2, establish additional operation regulation position between first regulating part 3 and second regulating part 4, improve the nimble degree of operation implementation. When the first connecting part 21 is connected with the first mounting part 31 in an aligned mode and the second connecting part 22 is separated from the second mounting part in a staggered mode, the middle connecting part can be connected with the middle mounting part in an aligned mode, at the moment, an operator can drive the adaptor 2 to rotate by operating and rotating the first adjusting part 3 or the middle adjusting part, and adjustment of the bending adjusting assembly 8 can be achieved; correspondingly, when the second connecting part 22 is connected with the second mounting part in an aligned manner and the first connecting part 21 is separated from the first mounting part 31 in a staggered manner, the middle connecting part can be connected with the middle mounting part in an aligned manner, and at the moment, an operator can drive the rotating and connecting part 2 to rotate by operating and rotating the second adjusting part 4 or the middle adjusting part, so that the adjustment of the bending component 8 can be realized; of course, in another embodiment, when the first connecting portion 21 is separated from the first mounting portion 31 in a staggered manner and the second connecting portion 22 is separated from the second mounting portion in a staggered manner, the intermediate connecting portion can be connected with the intermediate mounting portion in an aligned manner, and at this time, an operator can rotate the intermediate adjusting member by operating the intermediate adjusting member to drive the adaptor 2 to rotate, so that the adjustment of the bending adjusting assembly 8 can be realized. The number and the connection positions of the intermediate connection parts distributed on the adapter 2 and the connection positions with the intermediate adjusting part need to be configured according to actual requirements.
In the switching adjustment structure provided in this embodiment, in the connecting portion and the mounting portion that are correspondingly disposed, for example, as shown in fig. 6 to 9, of the first connecting portion 21 and the first mounting portion 31, the first connecting portion 21 is a non-circular shaft, and the first mounting portion 31 is a non-circular hole; of course, the first mounting portion 31 may be configured as a non-circular slot that fits snugly with a non-circular shaft; accordingly, in other embodiments, the first connecting portion 21 is a non-circular hole, and the first mounting portion 31 is a non-circular shaft; the dimensions of the holes and the grooves are not particularly limited in this embodiment. In the present embodiment, the housing 1 is a hollow cylinder, and the non-circular structure is a structure having two points at least at different distances from a line connecting axes of the housing 1 on the contour of the cross section in the radial direction of the housing 1. The purpose of transmission between the adjusting part and the adapter part 2 is achieved through the connection locking of the non-circular structure.
In this embodiment, the connecting portion is a protruding structure formed on the adaptor 2, and the connecting portion is used for locking the adaptor 2 and the adjusting member when the adaptor 2 slides to switch the adjusting position.
In this embodiment, when the adaptor 2 moves to the position where the first connecting portion 21 is connected to the first mounting portion 31 and the second connecting portion 22 is dislocated and separated from the second mounting portion, the first adjusting portion 3 can drive the adaptor 2, so as to operate the first adjusting portion 3 to bend the bending adjustment assembly 8, when the adaptor 2 moves to the position where the first connecting portion 21 is dislocated and separated from the first mounting portion 31 and the second connecting portion 22 is connected to the second mounting portion, the second adjusting portion 4 can drive the adaptor 2, so as to operate the first adjusting portion 3 to bend the bending adjustment assembly 8, the correspondingly arranged connecting portions and mounting portions are used for the transmission matching between the adjusting portion and the adaptor 2, so as to meet the transmission requirement for locking between the adjusting portion and the adaptor 2.
In the present embodiment, as shown in fig. 6 to 9, the adaptor 2 is a cylindrical structure, the connecting portions are distributed on the cylindrical structure in a rotation center, and the rotation center line of the connecting portion is arranged in a collinear manner with the axis of the cylindrical structure. Wherein, connecting portion distribute around the axis of cylinder structure and constitute and have regular polygon structure, and when connecting portion were regular polygon structure, the installation department also was the regular polygon structure of adaptation, carries out transmission regulating part and adaptor 2 through regular polygon structure to carry out subsequent accent curved process. In this embodiment, the first connecting portion 21 and the second connecting portion 22 respectively form a convex regular polygon structure, the first mounting portion 31 and the second mounting portion respectively form a concave regular polygon structure, when the adaptor 2 slides to be locked with the first adjusting member 3, the first connecting portion 21 is connected to the first mounting portion 31, the second connecting portion 22 is separated from the second mounting portion, when the first adjusting member 3 drives the adaptor 2 to rotate, the end surface of the second connecting portion 22 in the second direction can be abutted and matched with the end surface of the second adjusting member 4 in the first direction, so that a local blocking edge effect on the second connecting portion 22 can be established through the second mounting portion on the second adjusting member 4, the limiting rotation of the adaptor 2 by the overall switching adjusting structure is promoted, and the stability during transmission is enhanced; of course, it is only in the position posture where the second mounting portion and the second connection portion 22 are staggered, the regular polygon structure of the second mounting portion may form a blocking effect on the regular polygon structure of the second connection portion 22; accordingly, when the adaptor 2 is slid to be locked with the second adjusting member 4, the regular polygon structure of the first mounting portion 31 may form a blocking effect on the regular polygon structure of the first connecting portion 21.
As shown in fig. 5, a restriction portion 12 is provided in the housing 1, the restriction portion 12 is provided on an inner wall surface of the housing 1 facing the sliding direction of the adaptor 2, two limit wall surfaces constructed inside the housing 1 form the restriction portion 12, the restriction portion 12 is used for restricting the sliding stroke of the adaptor 2, at two limit positions where the adaptor 2 slides along the first direction and the second direction, the two limit wall surfaces are respectively abutted against a distal end portion and a proximal end portion of the adaptor 2, the limit wall surfaces are in form-fit with an end structure of the adaptor 2, and a connection portion on the adaptor 2 can be limited between the first adjuster 3 and the second adjuster 4.
As shown in fig. 7, the first adjusting member 3 is provided with a first flange portion 33, and the second adjusting member 4 is provided with a second flange portion (not shown), wherein any one of the flange portions is disposed on a side of the adjusting member away from the adaptor 2, the first flange portion 33 and the second flange portion are used for restricting the sliding stroke of the adaptor 2, and when the adaptor 2 slides in the first direction and in the second direction at two extreme positions, the first flange portion 33 and the second flange portion abut against the proximal end portion and the distal end portion of the adaptor 2, respectively.
As shown in fig. 5, any adjusting member is configured to be rotatably connected with the housing 1, and the housing 1 is provided with a joint part 15, wherein the joint part 15 is used for being rotatably abutted and matched with the adjusting member; the adjusting piece is provided with a positioning part which is used for being in rotary butt fit with the shell 1, and the contour and the wall surface of the butt joint part 15 and the positioning part are matched; in this embodiment, the engaging portion 15 is an annular groove and the positioning portion is an annular protrusion, but in another embodiment, the engaging portion 15 is an annular protrusion and the positioning portion is an annular groove.
As shown in fig. 7, in the switching adjustment structure provided in this embodiment, the first positioning portions 34 are annularly distributed on the first adjustment part 3, two or more first positioning portions 34 are provided, and the second positioning portions are annularly distributed on the second adjustment part 4, and two or more second positioning portions are provided. The mode that location portion adopted the segmentation to set up can reduce the area of contact between regulating part and casing 1, reduces frictional resistance between the two, is favorable to reducing the regulating part and drives the transmission resistance of adjusting curved subassembly 8.
As shown in fig. 2 and fig. 3, the switching adjustment structure provided in this embodiment further includes an operation component 5, the operation component 5 is rotatably installed in the housing 1, the operation component 5 is used for driving the adaptor 2 to slide relative to the housing 1, and a sliding space of the operation component 5 is provided in the housing 1. Wherein, as shown in fig. 10 and 11, operating part 5 includes operation body 51 and handle portion 52, and operation body 51 one end and handle portion 52 fixed connection, the operation body 51 other end can be dismantled with adaptor 2 and link to each other, and the one end that operation body 51 was kept away from to handle portion 52 wears to establish and extends the setting of casing 1, and handle portion 52 is used for driving the slip of adaptor 2.
As shown in fig. 4, the housing 1 is provided with a limiting portion 11, the limiting portion 11 is formed on the housing 1, the limiting portion 11 is rotatably connected to the handle portion 52, and the limiting portion 11 is used for limiting the rotation angle of the handle portion 52. Wherein, the limiting part 11 is an arc-shaped groove, the handle part 52 is an arc-shaped protrusion, and when the adaptor 2 rotates, the arc-shaped protrusion rotates in the arc-shaped groove in a matching way.
As shown in fig. 5, a support portion 13 is provided in the housing 1, the support portion 13 is movably abutted and matched with the adaptor 2, and the support portion 13 and the connecting portion are arranged in a staggered manner. In this embodiment, casing 1 is hollow barrel, and supporting part 13 is the radial spacing muscle on the hollow barrel under the shaping, and first direction, second direction sliding fit can be followed with adaptor 2 to radial spacing muscle and adaptor 2 normal running fit, and radial spacing muscle has the circular wall with adaptor 2 butt.
As shown in fig. 8 and 9, the adapter structure further includes a first protrusion 23 and a second protrusion 24, and the protrusions are disposed on the side of the connecting portion facing the housing 1; first accommodating part 32 is arranged on first adjusting part 3, second accommodating part is arranged on second adjusting part 4, the accommodating parts are formed in the adjusting parts, first accommodating part 32 and first protruding part 23 are correspondingly arranged, the second accommodating part and second protruding part 24 are correspondingly arranged, and the accommodating parts and the mounting parts are arranged adjacently. In this embodiment, the protruding portion is a protruding key.
In the switching adjustment structure provided in this embodiment, as shown in fig. 10, 13 to 15, the limiting portion 11 is an arc-shaped groove, and a central angle of the arc-shaped groove is C1; the handle 52 is an arc-shaped sheet body, and the central angle of the arc-shaped sheet body is C2; a projection angle of a first line connecting the first boss 23 and the extension axis of the adaptor 2 and a second line connecting the second boss 24 and the extension axis of the adaptor 2 on a cross section perpendicular to the extension axis of the adaptor 2 is C3, which satisfies the following formula: c1= C2+ C3. The angle setting is favorable for the alignment of the connection locking between the adapter 2 and the first adjusting part 3 and the second adjusting part 4 when the adapter 2 is in the switching position, and the adjustment of an operator is promoted.
In this embodiment, as shown in fig. 4, 6, 10 and 11, two sets of handle portions 52 and limiting portions 11 are provided, C1 is 120 degrees, C2 is 30 degrees, and C3 is 90 degrees, wherein a rotation angle of the arc-shaped sheet body in the arc-shaped groove is 90 degrees, when switching is specifically performed, for example, a spatial angle between a connecting line between the extension axes of the first mounting portion 31 and the adaptor 2 and a connecting line between the extension axes of the second mounting portion and the adaptor 2 is adjusted to be 90 degrees to be aligned with the first protrusion portion 23 and the second protrusion portion 24, when the adaptor 2 and the first adjusting member 3 need to be locked and switched to the second adjusting member 4, the first adjusting member 3 is acted by an external force to drive the adaptor 2 and the operating member 5 to rotate synchronously, when one side of the arc-shaped sheet body abuts against the arc-shaped groove, the arc-shaped groove limits movement of the operating member 5, and simultaneously fixes the adjusting member and the adaptor 2 relative to the housing 1, at this time, the adaptor 2 can be directly acted by driving the operating member 5 to slide relative to the second adjusting member 2 along the second adjusting member 3, and slide relative to lock the adaptor 2 and the second adjusting member 4; of course, when the adaptor 2 and the second adjusting member 4 need to be locked and switched to the first adjusting member 3, the reverse process of the above operation is performed.
In this embodiment, as shown in fig. 15, the adaptor is of a cylindrical structure, a projection angle of a first connection line between a first end surface 231 of the first protrusion 23 away from the adaptor 2 and a central axis of the adaptor 2 and a second connection line between a second end surface 241 of the second protrusion 24 away from the adaptor 2 and the central axis of the adaptor 2 on a cross section perpendicular to the central axis of the adaptor 2 is C3, where C3 is 90 °.
In other embodiments, the protrusions are symmetrically arranged, the first perpendicular bisector of the first protrusion 23 and the second perpendicular bisector of the second protrusion 24 are arranged in a crossed manner, the intersecting line of the first perpendicular bisector and the second perpendicular bisector is collinear with the extending axis of the adaptor 2, and the spatial included angle between the first perpendicular bisector and the second perpendicular bisector is C3.
The size of configuration switching structure and regulating part can be carried out to foretell angular relation, can promote the compactness of structure, reinforcing driven stability, simultaneously when adaptor 2 is in the switching position, reach the purpose of effectively adjusting the connection well, the space angle between the line of two bellyings and adaptor 2 extension axis disposes according to the design demand to optimize the turned angle of regulating part and adaptor 2, in order to satisfy subsequent accent curved demand.
In the present embodiment, in order to facilitate the operator to switch the connecting adjustment member to the adapter 2, an alignment structure is provided on the housing 1 and the adjustment member to facilitate the switching alignment, as shown in fig. 13 and 14, the alignment structure includes a first alignment portion 18, a second alignment portion 19, a third alignment portion 35, and a fourth alignment portion 41, wherein the first alignment portion 18 and the second alignment portion 19 are formed on the housing 1, the third alignment portion 35 is formed on the first adjustment member 3, the fourth alignment portion 41 is formed on the second adjustment member 4, the first alignment portion 18 is used for alignment with the third alignment portion 35, the second alignment portion 19 is used for alignment with the fourth alignment portion 41, and the first alignment portion 18 and the second alignment portion 19 are provided on the outer wall surface structure of the housing 1 around the adjustment region 14. Note that a spatial angle C4 (not shown in the drawings) of a line connecting the first positioning portion 18 and the central axis of the housing 1 and a line connecting the second positioning portion 19 and the central axis of the housing 1 is set to be equal to a spatial angle C3 of a line connecting the first mounting portion 31 and the extension axis of the adaptor 2 and a line connecting the second mounting portion and the extension axis of the adaptor 2, for example, C4= C3=90 °.
In the present embodiment, as shown in fig. 13 and 14, the positioning portion is a groove extending along the central axis of the housing 1; in other embodiments, the alignment portion is a scale with marked lines to facilitate observation by an operator and to facilitate alignment of the housing 1 with the adjustment member.
As shown in fig. 4, the housing 1 is formed with an adjustment region 14, and the adjustment region 14 is disposed corresponding to the adjustment member. In the present exemplary embodiment, the adjustment region 14 is an arc-shaped groove structure formed on the housing, which has an arc-shaped opening region, through which the operator performs a rotational adjustment of the adjustment element. In this embodiment, the adjusting part is adjusting parts such as adjust knob, regulating wheel, regulation handle, and it can be used to drive the rotation of adaptor 2.
In the switching adjustment structure provided in this embodiment, as shown in fig. 4, the central angle of the arc-shaped groove structure is 30 ° to 360 °, preferably, the central angle of the arc-shaped groove structure is configured to be 30 °, 90 °, 180 °, 270 ° or 360 °, for example, when the arc-shaped groove structure with the central angle of 180 ° is adopted, the adjustment member may expose the adjustment region of the half operation end face thereof, the housing 1 forms a cover for the adjustment member, and a holding region of an operator is reserved, which is beneficial to reducing the risk of accidental touch during the adjustment implementation process, and improves the safety of operation. It should be noted that, when 360 when the central angle of arc wall structure chooses, the regulating part can expose its all operation terminal surface's regulation region, wherein, casing 1 borders on regulating part terminal surface department and needs to set up looks fixed connection's cooperation structure, so that casing 1 forms overall structure, this cooperation structure can be for wearing to establish the plate body at the regulating part, the plate body both ends are fixed connection respectively on casing 1, the plate body sets up to the arc structure, the regulating part is when rotatory, the plate body rotates with the regulating part mutually to be connected, the corresponding arc cell body that sets up the plate body motion on the regulating part.
In this embodiment, as shown in fig. 4, the two arc-shaped grooves corresponding to the first adjusting part 3 and the second adjusting part 4 have the same structure and both have the same central angle, and the two arc-shaped grooves are completely overlapped on the projection plane in the extending direction of the housing 1; correspondingly, the two arc-shaped grooves corresponding to the first adjusting piece 3 and the second adjusting piece 4 have the same structure, and are arranged in a staggered manner, and the two arc-shaped grooves can be partially overlapped on a projection plane in the extending direction of the shell 1; of course, in other embodiments, the two arc-shaped grooves corresponding to the first adjusting part 3 and the second adjusting part 4 have the same structure, and are arranged in a staggered manner, and the two arc-shaped grooves do not coincide with each other on a projection plane in the extending direction of the housing 1.
In other embodiments, the two arc-shaped grooves corresponding to the first adjusting part 3 and the second adjusting part 4 have different structures, and have central angles with different angles, and the two arc-shaped grooves are arranged in a superposition manner on a projection plane in the extending direction of the housing 1; correspondingly, the two arc-shaped groove structures corresponding to the first adjusting piece 3 and the second adjusting piece 4 are different, the two arc-shaped groove structures have central angles with different angles, the two arc-shaped groove structures are arranged in a staggered mode, and the two arc-shaped groove structures do not coincide with each other on the projection plane in the extending direction of the shell 1.
In the present embodiment, the radial dimension of the adjusting member is smaller than the radial dimension of the housing 1 at the adjusting region 14, so that the adjusting member is arranged in the housing 1, and the structural shape of the adjusting member can be accommodated in the housing 1, thereby reducing the risk of poor contact to bending during operation. In other embodiments, the radial dimension of the adjustment element is equal to the radial dimension of the housing 1 at the adjustment zone 14. It should be noted that the adjusting member has an operating end surface arranged in the adjusting area 14 for operation by an operator.
In the present embodiment, as shown in fig. 16, the length of the second adjusting member 4 in the central axis direction of the housing 1 is L1, the length of the second mounting portion and the second receiving portion in the central axis direction of the housing 1 is the same, and is set to L2, and the length of the second connecting portion 22 and the length of the second protruding portion 24 in the central axis direction of the housing 1 is the same, and is set to L3, where L1 > L2 > L3, for example: l1=11mm; l2=10mm; l3=9mm, it can make the second installation department install second connecting portion 22, and the second portion of accomodating accepts second bellying 24, and the setting of length is favorable to promoting the compactness of overall structure, strengthens connecting closely and transmission stability, is favorable to avoiding the interference between the structure simultaneously, promotes the assembly of structure. Accordingly, the connecting fit of the first adjusting part 3 to the adapter part 2 can also assume the length relationships described above.
The switching regulation structure that this embodiment provided, wear to establish adapter 2 mobilizable in casing 1 under the external force drive, make adapter 2 and the locking of first regulating part 3, adapter 2 and the separation of second regulating part 4, thereby adjust curved subassembly 8 through the operation of first regulating part 3, also make adapter 2 and the separation of first regulating part 3, the locking of second regulating part 4, thereby adjust curved subassembly 8 through the operation of second regulating part 4, form two different regulation operating position on casing 1, adjust the structure through switching and switch operation adjusting position, so that operator's switching is gripped and is implemented and adjust curved subassembly 8, effectively improve the convenience of operation, thereby enlarge the application scene under the adjustable curved sheath pipe clinical environment.
The switching adjustment structure that this embodiment provided still includes magnetism and inhales the structure, as shown in fig. 2, magnetism is inhaled the structure and is inhaled 6 and second magnetism and inhale 7 including first magnetism, and first magnetism is inhaled 6 and is installed on adaptor 2, and second magnetism is inhaled 7 and is installed on operating parts 5. In this embodiment, the first magnetic element 6 is embedded in the adaptor 2 near the proximal end, and the second magnetic element 7 is embedded in the operating element 5 near the distal end. Wherein, the magnetic part is a magnetic ring.
The first magnetic attraction piece 6 and the second magnetic attraction piece 7 have close attraction states and far separation states; the adapter part 2 and the operation part 5 are configured into a connection form of being capable of being connected, fixed and separated through a magnetic attraction structure, and the operation part 5 and the adapter part 2 can synchronously slide relative to the shell 1 under the action of external force in a suction state; in the separated state, the operation member 5 can be in sliding fit with respect to the housing 1 under the action of external force, and the proximal end of the adapter 2 is abutted against the housing 1.
In the switching adjustment structure provided by this embodiment, the casing 1 limits the adapting piece 2 through the external force acting on the operating piece 5, so that the operating piece 5 and the adapting piece 2 can generate relative displacement, and the first magnetic attraction piece 6 and the second magnetic attraction piece 7 are in a connection state of close attraction and far separation; when the magnetic attraction structure is in an attraction state, the adjusting part can drive the operating part 5 and the adapter part 2 to synchronously rotate so as to perform subsequent bending adjustment; when the magnetic attraction structure is in a separated state, the adjusting piece can drive the adapter piece 2 to rotate so as to perform subsequent bending adjustment; for avoiding operating piece 5's appearance structure and whole switching to adjust the structure and take place structural interference, lead to the restriction to transfer the freely of curved subassembly 8 and turn curved, in actual accommodation process, the structure is inhaled to optional magnetism under the detached state, and the regulating part drives adaptor 2 and rotates to carry out follow-up operation of transferring the curve, thereby promote the freely of transferring curved subassembly 8 and turn curved, in order to satisfy the application of great angle of transferring the curve.
In this embodiment, as shown in fig. 10 to 12, the switching adjustment structure further includes a linking structure, the linking structure includes a first linking portion 25 and a second linking portion 53, the first linking portion 25 is disposed on an end surface of the adaptor 2 close to the operating element 5, the second linking portion 53 is connected to an end surface of the operating body 51 close to the adaptor 2, and the first linking portion 25 and the second linking portion 53 are used for connecting the adaptor 2 and the operating element 5, so that when the first magnetic attraction piece 6 and the second magnetic attraction piece 7 are in an attraction state, the magnetic attraction structure is matched to enable the adjusting element to drive the adaptor 2 and the operating element 5 to rotate synchronously when the adjusting element rotates. The first coupling portion 25 is a coupling groove, and the second coupling portion 53 is a coupling projection; of course, in other embodiments, the first coupling portion 25 is a coupling protrusion, the second coupling portion 53 is a coupling groove, and the coupling protrusion and the coupling groove are non-circular structures in conformal connection.
As an alternative implementation manner of this embodiment, the switching adjustment structure further includes a clamping structure, the clamping structure includes a first clamping portion and a second clamping portion, the proximal end of the adaptor 2 is provided with the first clamping portion, the distal end of the operating element 5 is provided with the second clamping portion, the operating element 5 is acted along the second direction by an external force, so that the operating element 5 is close to the adaptor 2, the distal end of the adaptor 2 abuts against and extrudes the restraint portion 12 of the housing 1 located at the distal end, so that the first clamping portion is connected with the second clamping portion, at this time, the adaptor 2 is clamped and embedded with the operating element 5, the adaptor 2 and the second adjusting member 4 are fixedly arranged, the adaptor 2 is locked with the second adjusting member 4, and the second adjusting member 4 is rotated to drive the adaptor 2 to rotate; afterwards, operating part 5 is acted on along the first direction through external force, make operating part 5 and adaptor 2 relative casing 1 synchronous slip, adaptor 2 near-end and casing 1 lie in the confined portion 12 butt extrusion of near-end, at this moment, can make first joint portion and second joint portion break away from the connection, adaptor 2 and operating part 5 withdraw from the joint scarf joint, both separation sets up, adaptor 2 and first regulating part 3 are locked mutually, can drive adaptor 2 through rotatory first regulating part 3 and rotate. The adapter 2 and the operating element 5 are separated and connected through the clamping structure, so that the purpose of switching two different adjusting operation positions is also achieved.
Example 2
The present embodiment provides an adjustable bending sheath, as shown in fig. 1 and fig. 2, including a bending adjusting component 8 and a switching adjusting structure of the embodiment 1, where the switching adjusting structure is fixedly connected to the bending adjusting component 8.
As shown in fig. 1, 2, and 17 to 19, the bending adjusting assembly 8 includes a transmission element 81, a fixing block 82, a bending adjusting tube 83, a pulling wire 84, and a bending adjusting ring 85, the transmission element 81 is installed in the adapter 2, the fixing block 82 is used for fixedly connecting the pulling wire 84, the pulling wire 84 is installed between the transmission element 81 and the fixing block 82, the fixing block 82 is detachably matched with the transmission element 81, a proximal end of the bending adjusting tube 83 is fixedly connected with the housing 1, a distal end of the bending adjusting tube 83 is provided with the bending adjusting ring 85, the bending adjusting ring 85 is fixedly connected with a distal end of the pulling wire 84, and the pulling wire 84 is slidably inserted into an interlayer channel provided in the bending adjusting tube 83; wherein, be equipped with the helicitic texture between adaptor 2 and the driving medium 81, adaptor 2 passes through helicitic texture transmission medium 81 under the exogenic action to make driving medium 81 drive pull wire 84 and remove along first direction or second direction. Through setting up driving member 81 in adaptor 2, make adaptor 2 constitute axial and radial location to driving member 81, be favorable to strengthening the motion stroke controllability of driving member 81, promote the stability of adjusting the curved process. During bending adjustment, the transmission member 81 drives the pulling wire 84, so that the pulling wire 84 pulls the bending adjustment ring 85, and the bending adjustment ring 85 can drive the bending adjustment pipe 83 to bend, thereby adjusting the bending position of the distal end of the bending adjustment pipe 83 and the orientation of the distal end port.
The adjustable bending sheath provided by the embodiment further includes an inner channel, as shown in fig. 2, fig. 4 and fig. 5, the inner channel is disposed through the bending adjusting component 8 and the switching adjusting structure. Wherein, be equipped with the intercommunication chamber in the driving medium 81, the casing 1 near-end is provided with first connecting hole 16, and the casing 1 distal end is provided with second connecting hole 17, transfers the intraductal direction chamber that is equipped with of elbow 83, and casing 1 inner chamber, intercommunication chamber, connecting hole and direction chamber form interior passageway jointly.
The adjustable bending sheath provided by the embodiment further includes a hemostatic assembly 9, as shown in fig. 2, fig. 6 and fig. 20, the hemostatic assembly 9 is mounted on the switching adjustment structure, and the hemostatic assembly 9 is used for blocking the inner channel. Hemostatic assembly 9 is used for the shutoff interior passageway, and hemostatic assembly 9 includes disk seat 91, end cover 92 and hemostatic valve 93, and disk seat 91 inlays to be established and installs in casing 1, and end cover 92 installs on disk seat 91, and hemostatic valve 93 installs between disk seat 91 and end cover 92, blocks the circulation of interior passageway in the tissue liquid through hemostatic valve 93. In this embodiment, the end cap 92 is configured to be screwed, and the hemostatic valve 93 can be screwed through the end cap 92, so as to improve the sealing effect of the hemostatic valve 93.
When an operator needs to switch from holding the bending adjusting sheath with a right hand to holding the bending adjusting sheath with a left hand for bending adjustment, the application method of the bending adjusting sheath provided by the embodiment is as follows:
when an operator needs to hold the bending sheath tube by a right hand, at the moment, the adapter part 2 is locked with the second adjusting part 4, and the bending adjusting assembly 8 can be adjusted through the second adjusting part 4. During actual switching, firstly, the first adjusting piece 3 is rotated by external force, so that the first mounting part 31 on the first adjusting piece 3 and the first connecting part 21 on the adapter piece 2 are projected relatively to be in positive coincidence along the first direction; then, the operating piece 5 is pushed to the near end of the adapter piece 2 by external force, so that the operating piece 5 drives the adapter piece 2 to slide along the first direction, the second connecting part 22 is disconnected from the second mounting part, the adapter piece 2 and the second adjusting piece 4 are unlocked, the first connecting part 21 is connected with the first mounting part 31 and overlapped, and the adapter piece 2 and the first adjusting piece 3 are locked; finally, rotate first regulating part 3 through external force, first regulating part 3 drives adaptor 2 rotatory, and adaptor 2 is through helicitic texture cooperation effect driving medium 81 when rotatory, makes driving medium 81 move in first direction or second direction to make the pull wire carry out the displacement, thereby make the distal end of pull wire drive the distal end of transferring return bend 83 and bend or reset. And then, the process of using and bending the adjustable bending sheath tube by switching from holding by the right hand to holding by the left hand is completed.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (12)

1. A switching adjustment structure, comprising:
a housing (1);
the switching structure comprises a switching piece (2), wherein the switching piece (2) is suitable for being connected with a bending adjusting assembly (8), and the switching piece (2) is movably arranged in the shell (1) in a penetrating mode;
the first adjusting piece (3) and the second adjusting piece (4) are arranged at intervals, the first adjusting piece (3) and the second adjusting piece (4) are configured to be rotatably connected with the shell (1), the adapter piece (2) is installed between the first adjusting piece (3) and the second adjusting piece (4), and the adapter structure comprises a first connecting portion (21) and a second connecting portion (22), wherein any one of the connecting portions is arranged on the outer wall surface of the adapter piece (2) and faces one side of the shell (1); a first mounting part (31) is arranged on the first adjusting part (3), and the first mounting part (31) is movably connected with the first connecting part (21); a second mounting part is arranged on the second adjusting part (4), and the second mounting part is movably connected with the second connecting part (22); any mounting part is correspondingly arranged in the adjusting part;
the operating piece (5) is rotatably installed in the shell (1), the operating piece (5) is detachably connected with the adapter (2) through a magnetic attraction structure, and the operating piece (5) is used for driving the adapter (2) to slide relative to the shell (1); the magnetic attraction structure comprises a first magnetic attraction piece (6) and a second magnetic attraction piece (7), the first magnetic attraction piece (6) is installed on the adapter piece (2), and the second magnetic attraction piece (7) is installed on the operating piece (5); under the drive of external force, the first magnetic part (6) and the second magnetic part (7) have a close attraction state and a far separation state; in the suction state, the operating part (5) and the adapter part (2) can synchronously slide relative to the shell (1) under the action of external force; in the separated state, the operating piece (5) can slide relative to the shell (1) under the action of external force, and the near end of the adapter piece (2) is abutted against the shell (1);
the external force driving device comprises an adapter (2) and an operating piece (5), wherein when the adapter (2) is driven by external force to attract and connect with the operating piece (5) for movement, the adapter (2) is locked with a first adjusting piece (3) and separated from a second adjusting piece (4) so that the first adjusting piece (3) can adjust a first adjusting state of a bending adjusting assembly (8), and the adapter (2) is separated from the first adjusting piece (3) and locked with the second adjusting piece (4) so that the second adjusting piece (4) can adjust a second adjusting state of the bending adjusting assembly (8), and the adapter (2) is switched between the first adjusting state and the second adjusting state.
2. The switching adjustment structure according to claim 1, wherein the operating element (5) includes an operating body (51) and a handling portion (52), one end of the operating body (51) is fixedly connected with the handling portion (52), the other end of the operating body (51) is detachably connected with the adaptor (2), one end of the handling portion (52) far away from the operating body (51) penetrates through the casing (1) to be arranged, and the handling portion (52) is used for driving the adaptor (2) to slide; and/or
The adapter (2) is movably sleeved in the adjusting piece;
in the connecting part and the mounting part which are correspondingly arranged, one of the connecting part and the mounting part is a non-circular shaft, and the other one of the connecting part and the mounting part is a non-circular hole.
3. The switching adjustment structure according to claim 2, wherein a limiting portion (11) is provided on the housing (1), the limiting portion (11) is formed on the housing (1), the limiting portion (11) is rotatably connected to the handle portion (52), and the limiting portion (11) is used for limiting a rotation angle of the handle portion (52).
4. The switching adjustment structure according to claim 3, characterized in that the changeover structure further comprises a first projection portion (23) and a second projection portion (24), the first projection portion (23) being protrudingly provided on a side of the first connecting portion (21) facing the housing (1), the second projection portion (24) being protrudingly provided on a side of the second connecting portion (22) facing the housing (1); and/or
Be equipped with first portion of acceping (32) on first regulating part (3), be equipped with the second portion of acceping on second regulating part (4), arbitrary the portion of acceping corresponds the shaping and is in the regulating part, first portion of acceping (32) with first bellying (23) are conformal to correspond the setting, the second portion of acceping with second bellying (24) are conformal to correspond the setting, first portion of acceping with first installation department (31) are adjoined the setting, the second portion of acceping with the second installation department is adjoined the setting.
5. The switching adjustment structure according to claim 4, characterized in that:
the limiting part (11) is an arc-shaped groove, and the central angle of the arc-shaped groove is C1;
the handle part (52) is an arc-shaped sheet body, and the central angle of the arc-shaped sheet body is C2;
a projection angle of a first connecting line of the first boss (23) and the extension axis of the adaptor (2) and a second connecting line of the second boss (24) and the extension axis of the adaptor (2) on a cross section perpendicular to the extension axis of the adaptor (2) is C3, and the following formula is satisfied: c1= C2+ C3.
6. The switching adjustment structure according to claim 2, wherein the adaptor (2) is a cylindrical structure, the first connection portion (21) and the second connection portion (22) are respectively distributed on the cylindrical structure in a rotation center, and a rotation center line of any one of the connection portions is arranged in a collinear manner with an axis of the cylindrical structure.
7. Switching regulation structure according to claim 6, characterized in that the first connection (21) and the second connection (22) are each distributed around the axis of the cylindrical structure to constitute a regular polygonal structure.
8. The switching regulation structure according to any one of claims 1 to 7, characterized in that the housing (1) is formed with at least two regulation zones (14), the two regulation zones (14) being provided in correspondence with the first regulation member (3) and the second regulation member (4), respectively;
the adjusting area (14) is an arc-shaped groove structure constructed on the shell (1), the central angle of the arc-shaped groove structure is 30-360 degrees, and at least two arc-shaped groove structures are arranged in a superposition mode or in a staggered mode along the projection of the radial cross section of the arc-shaped groove structures; and/or
Any of the adjusting members has at least part of the operating end surface arranged in the adjusting area (14), and the radial dimension of any of the adjusting members is smaller than or equal to the radial dimension of the shell (1) at the adjusting area (14).
9. The switching adjustment structure according to any one of claims 1 to 7, characterized in that a restraining portion (12) is provided in the housing (1), the restraining portion (12) is provided on an inner wall surface of the housing (1) facing a sliding direction of the adaptor (2), the restraining portion (12) is used for restraining a sliding stroke of the adaptor (2), and the restraining portion (12) is in form fit with the adaptor (2); and/or
At least one supporting part (13) is arranged in the shell (1), the supporting part (13) is movably abutted and matched with the adaptor (2), and the supporting part (13) is respectively arranged in a staggered manner with the first connecting part (21) and the second connecting part (22); and/or
A first edge blocking portion (33) is arranged on the first adjusting piece (3), a second edge blocking portion is arranged on the second adjusting piece (4), the first edge blocking portion (33) is arranged on one side, far away from the adapter piece (2), of the first adjusting piece (3), the second edge blocking portion is arranged on one side, far away from the adapter piece (2), of the second adjusting piece (4), and the first edge blocking portion (33) and the second edge blocking portion are used for restraining the sliding stroke of the adapter piece (2); and/or
A joint part (15) is arranged on the shell (1), and the joint part (15) is used for being in rotary butt fit with the adjusting piece; and/or
The first adjusting piece is provided with a first positioning part (34), the second adjusting piece is provided with a second positioning part, and the first positioning part (34) and the second positioning part are used for being in butt joint with the shell (1) in a rotating mode.
10. An adjustable bending sheath, comprising:
a bending adjustment assembly (8);
and a switching adjustment structure according to any one of claims 1 to 9, fixedly connected with the bending adjustment assembly (8).
11. The sheath with adjustable bending according to claim 10, wherein the bending adjusting component (8) comprises a transmission member (81), a pulling wire and a bending adjusting pipe (83), the transmission member (81) is installed in the adapter member (2), a proximal end of the pulling wire is fixedly connected with the transmission member (81), a proximal end of the bending adjusting pipe (83) is fixedly connected with the housing (1), a distal end of the bending adjusting pipe (83) is fixedly connected with a distal end of the pulling wire, a thread structure is arranged between the adapter member (2) and the transmission member (81), and the adapter member (2) transmits the transmission member (81) through the thread structure under an external force so that the transmission member (81) drives the pulling wire to move along a first direction or a second direction, wherein the first direction is opposite to the second direction.
12. The adjustable bending sheath according to claim 10, further comprising an inner channel passing through the bending adjustment assembly (8) and the switching adjustment structure;
and a hemostatic assembly (9), the hemostatic assembly (9) being mounted on the switching adjustment structure, the hemostatic assembly (9) being for occluding the inner passage.
CN202211381767.4A 2022-11-07 2022-11-07 Switching adjusting structure and adjustable bent sheath tube Active CN115414079B (en)

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CN109223064B (en) * 2018-11-13 2023-02-28 北京华脉泰科医疗器械股份有限公司 Operating handle of adjustable curved sheath pipe and adjustable curved sheath pipe
CN110037760A (en) * 2019-05-30 2019-07-23 北京华脉泰科医疗器械有限公司 Operation handle and medical adjustable bending sheath tube
CN112971871B (en) * 2019-12-17 2023-01-03 先健科技(深圳)有限公司 Adjustable bent sheath tube
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