CN109222855B - Bidirectional ratchet wheel operating device for medical endoscope - Google Patents
Bidirectional ratchet wheel operating device for medical endoscope Download PDFInfo
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- CN109222855B CN109222855B CN201810874667.2A CN201810874667A CN109222855B CN 109222855 B CN109222855 B CN 109222855B CN 201810874667 A CN201810874667 A CN 201810874667A CN 109222855 B CN109222855 B CN 109222855B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0052—Constructional details of control elements, e.g. handles
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Abstract
The invention belongs to the technical field of equipment maintenance, and particularly relates to a bidirectional ratchet operating device for a medical endoscope, which comprises a shell, a rotating wheel core arranged in the shell, a fixing piece fixedly connected with the shell and a ratchet control device in transmission connection with the rotating wheel core, wherein the fixing piece is fixedly connected with the shell; the rotating wheel core comprises a rotating wheel fixedly connected with the traction steel wire and a connecting rod axially and fixedly connected to the rotating wheel; the ratchet wheel control device comprises a fixing piece, a regulating piece, a ratchet wheel core and a ratchet wheel disc which are sequentially arranged; the connecting rod is in transmission connection with the ratchet wheel disc; the invention realizes the control of the rotating wheel core by designing the ratchet wheel control device and utilizing the advantages of forward rotation, reverse rotation, stopping and the like of the fixing piece, the adjusting piece, the ratchet wheel core and the ratchet wheel disc of the ratchet wheel control device, further achieves the control in the direction of the endoscope, enables the endoscope to move or lock in the direction, and has convenient use and single-hand operation.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a bidirectional ratchet wheel operating device for a medical endoscope.
Background
Along with the popularization and application of endoscope technology in clinical daily diagnosis and treatment in hospitals, an electronic endoscope is needed when the hospital needs to use the endoscope for examination and treatment. Sometimes the direction of the head end is fixed to prevent the accident of the operation, and the operation part of the endoscope needs to be fixed. The operation is mostly carried out by using two hands, and the operation by one hand is very inconvenient. The side control structure of the existing endoscope is an edge side rotating wheel type (like wheel type knob control protruding out of the edge side of Orringbach) and an edge side shifting rod type (like a supporting rod protruding out of the edge side of Orringbach) and the existing fixing scheme of the edge side rotating wheel type (knob control) is that a toggle switch is fixed by increasing friction force.
The current fixed scheme relies on increase frictional force for toggle switch to fix, and needs to pay attention to toggle switch and prevents that it from skidding, causes the skew of head end direction. Therefore, it is necessary to develop an endoscope operation device capable of being operated with one hand and being stably controlled.
Disclosure of Invention
In view of the above problems, the present invention aims to provide an endoscope operation device that can be operated with one hand and can be controlled stably.
In order to solve the technical problems, the invention adopts a technical scheme that: the bidirectional ratchet operating device comprises a shell, a rotating wheel core arranged in the shell, a fixing piece fixedly connected with the shell and a ratchet control device in transmission connection with the rotating wheel core;
the rotating wheel core comprises a rotating wheel fixedly connected with the traction steel wire and a connecting rod axially and fixedly connected to the rotating wheel;
the ratchet control device comprises a regulating part, a ratchet core and a ratchet disc which are sequentially arranged; the connecting rod is in transmission connection with the ratchet wheel disc.
As an improvement, the fixed part is fixedly connected with the shell, the fixed part, the ratchet core and the regulating part are provided with through holes, and the connecting rod penetrates through the through holes of the fixed part and the regulating part and then is in transmission connection with the ratchet wheel disc; the ratchet core is provided with a pawl, the ratchet plate is provided with a ratchet, and the pawl is matched with the ratchet; the adjusting and controlling piece is matched with the ratchet wheel core and used for controlling the matching state of the pawl and the ratchet wheel.
As an improvement, the fixing piece is provided with a boss, and the ratchet wheel core is sleeved on the boss in a non-rotatable manner; the ratchet core is circular, the ratchet core has the holding tank, the bottom of holding tank is provided with reset spring, the activity of one end of pawl sets up in the holding tank, the other end of pawl stretches out the holding tank.
Specifically, the outer side of the ratchet wheel disc is provided with corrugations, and the inner side of the ratchet wheel disc is provided with a ratchet wheel.
Furthermore, the adjusting and controlling part is of an annular structure, the adjusting and controlling part is sleeved outside the ratchet core, and the adjusting and controlling part is in clearance fit with the ratchet core; the outer side of the regulating and controlling part is provided with a deflector rod, the inner side of the regulating and controlling part is provided with a control groove, two side edges of the control groove are smoothly connected with the edge of the inner side of the regulating and controlling part, and the control groove is correspondingly matched with the pawl.
As a further improvement, the ratchet wheel adjusting device further comprises a limiting device, wherein the limiting device comprises two limiting grooves, and the limiting grooves are arranged on the inner side of the adjusting part or the outer side of the ratchet wheel core; the limiting device further comprises a limiting protruding structure matched with the limiting groove, the limiting protruding structure comprises a reset spring arranged in the reset groove and a protruding part located at the top end of the reset spring, and the limiting protruding structure is arranged on the outer side of the ratchet core or on the inner side of the regulating part.
As a refinement, the turning wheel core includes a first turning wheel core that controls movement of the endoscope in a first direction and a second turning wheel core that controls movement of the endoscope in a second direction; the ratchet control device comprises a first ratchet control device and a second ratchet control device, the first rotating wheel core is in transmission connection with the first ratchet control device, and the second rotating wheel core is in transmission connection with the second ratchet control device.
As further, still include stator and retaining member, the stator includes a fixed disk and axial fixity connects and is in dead lever on the fixed disk, the dead lever passes behind first runner core, second runner core, first ratchet controlling means and the second ratchet controlling means with retaining member fixed connection.
Furthermore, the ratchet locking device further comprises a first lock catch and a second lock catch, wherein the first lock catch is used for locking and fixing the first ratchet control device and the fixing piece, and the second lock catch is used for locking and fixing the second ratchet control device and the fixing piece.
Further, the device also comprises a first buckle, a second buckle and a third buckle; the first buckle is used for clamping the first rotating wheel core, the fixing piece and the first ratchet wheel control device to prevent displacement, and the second buckle is used for isolating the first ratchet wheel control device from the second ratchet wheel control device to avoid mutual influence; the third buckle is used for clamping the second rotating wheel core, the fixing piece and the second ratchet wheel control device to prevent displacement.
The endoscope operating device realizes the control of the rotating wheel core by designing the ratchet wheel control device and utilizing the advantages of forward rotation, reverse rotation, stopping and the like of the fixing piece, the adjusting piece, the ratchet wheel core and the ratchet wheel disc of the ratchet wheel control device, further achieves the control in the direction of the endoscope, enables the endoscope to move or lock in the direction, and is convenient to use and operated by one hand.
Drawings
FIG. 1 is an assembled perspective view of an endoscopic manipulation device of the present invention;
FIG. 2 is an exploded perspective view of an endoscope operating device of the present invention;
fig. 3 is an exploded front view of an endoscope operating device of the present invention.
Detailed Description
An endoscope operation device according to the present invention will be described in detail below with reference to fig. 1 to 3.
As shown in fig. 1-3, the present invention provides an endoscope operation device, which comprises a housing, a rotating wheel core arranged in the housing, a fixing member 4 fixedly connected with the housing, and a ratchet control device in transmission connection with the rotating wheel core; the rotating wheel core comprises a first rotating wheel core 2 and a second rotating wheel core 3, the first rotating wheel core 2 controls the movement of the endoscope in a first direction, and the second rotating wheel core 3 controls the movement of the endoscope in a second direction; the ratchet control device comprises a first ratchet control device 5 and a second ratchet control device 6, the first rotating wheel core 2 is in transmission connection with the first ratchet control device 5, and the second rotating wheel core 3 is in transmission connection with the second ratchet control device 6.
The rotating wheel core comprises a rotating wheel fixedly connected with the traction steel wire and a connecting rod axially and fixedly connected to the rotating wheel; the rotating wheel core drives the traction steel wire to move, so that a snake bone at the end part of the endoscope moves, and the endoscope is adjusted in the direction.
The ratchet control device comprises a fixing part 4, regulating parts 51 and 61, ratchet cores 53 and 63 and ratchet discs 52 and 62 which are sequentially arranged; the connecting rods are in driving connection with the ratchet plates 52, 62.
As a preferred embodiment, the fixed part 4 is fixedly connected with the shell, the fixed part 4, the ratchet cores 53 and 63 and the regulating parts 51 and 61 are provided with through holes, and the connecting rod passes through the through holes of the fixed part 4 and the regulating parts 51 and 61 and then is in transmission connection with the ratchet wheels 52 and 62; the ratchet core 53, 63 has a pawl 533, 633, the ratchet disc 52, 62 has a ratchet, the pawl 533, 633 cooperates with the ratchet; the adjusting members 51, 61 are matched with the ratchet cores 53, 63 to control the matching state of the pawls 533, 633 and the ratchet.
As a preferred embodiment, the fixing member 4 has a boss, the ratchet core 53, 63 is non-rotatably sleeved on the boss, and the inner side of the ratchet core 53, 63 is matched with the boss of the fixing member 4 through a non-circular shape, so that the fixing member can be well fixed and cannot move in the axial direction; the ratchet cores 53 and 63 are circular, the ratchet cores 53 and 63 are provided with accommodating grooves 531 and 631, return springs 532 and 632 are arranged at the bottoms of the accommodating grooves 531 and 631, one ends of the pawls 533 and 633 are movably arranged in the accommodating grooves 531 and 631, and the other ends of the pawls 533 and 633 extend out of the accommodating grooves 531 and 631.
In a preferred embodiment, the ratchet plates 52, 62 are corrugated on the outside and the ratchet plates 52, 62 are ratcheted on the inside.
As a preferred embodiment, the adjusting members 51, 61 are in a ring structure, the adjusting members 51, 61 are sleeved outside the ratchet cores 53, 63, and the adjusting members 51, 61 are in clearance fit with the ratchet cores 53, 63; the outer sides of the adjusting pieces 51 and 61 are provided with a shift lever, the inner sides of the adjusting pieces 51 and 61 are provided with control grooves, two side edges of the control grooves are smoothly connected with the inner side edges of the adjusting pieces 51 and 61, and the control grooves are correspondingly matched with the pawls 533 and 633.
As a preferred embodiment, the ratchet mechanism further comprises a limiting device, wherein the limiting device comprises two limiting grooves, and the limiting grooves are arranged on the inner sides of the adjusting pieces 51 and 61 or the outer sides of the ratchet cores 53 and 63; the limiting device further comprises a limiting protruding structure matched with the limiting groove, the limiting protruding structure comprises a reset spring 532 and a reset spring 632 arranged in the reset groove and a protruding part located at the top end of the reset spring 532 and the top end of the reset spring 632, and the limiting protruding structure is arranged on the outer side of the ratchet core 53 and 63 or on the inner side of the adjusting part 51 and 61.
As a preferred embodiment, still include stator 1 and retaining member 7, stator 1 includes a fixed disk and axial fixed connection and is in the dead lever on the fixed disk, the dead lever pass behind first runner core 2, second runner core 3, first ratchet controlling means 5 and the second ratchet controlling means 6 with retaining member 7 fixed connection. The fixed disk is mainly fixedly combined with the internal structural component of the control handle, and the fixed combination is rigid combination, namely, cannot move.
In a preferred embodiment, the ratchet locking mechanism further comprises a first locking catch 54 and a second locking catch 56, wherein the first locking catch 54 is used for locking and fixing the first ratchet control device 5 and the fixing member 4, and the second locking catch 56 is used for locking and fixing the second ratchet control device 6 and the fixing member 4.
As a preferred embodiment, a first buckle 55, a second buckle 57 and a third buckle 64 are further included; the first buckle 55 is used for clamping the first wheel core 2, the fixing piece 4 and the first ratchet control device 5 to prevent displacement, and the second buckle 57 is used for isolating the first ratchet control device 5 from the second ratchet control device 6 to avoid mutual influence; the third fastener 64 is used for fastening the second rotating wheel core 3, the fixing part 4 and the second ratchet control device 6 to prevent displacement.
When the ratchet mechanism is used specifically, the ratchet mechanism is moved to the reaching direction as required to be controlled, a corresponding ratchet control device is selected, for example, the first direction needs to be adjusted, the first ratchet control device is selected to be controlled, the positive direction and the negative direction in the first direction needing to move are further determined, the adjusting piece of the first ratchet control device is adjusted according to the positive direction and the negative direction, the corresponding adjusting piece is shifted to the corresponding moving position, and at the moment, the pawl on the ratchet core is extruded by the control groove of the adjusting piece to enable the pawl to contract and deviate from the contact area of the ratchet gear, so that no influence is caused on the movement of the gear; the ratchet wheel pushes the ratchet wheel core to rotate, the ratchet wheel core is in transmission connection with the first rotating wheel core, and the rotating wheel of the rotating wheel core drives the traction steel wire to move, so that the snake bone at the end part of the endoscope moves, and the endoscope can be adjusted in the direction.
And moving in other directions, selecting a corresponding ratchet wheel control device according to the direction, and further shifting the adjusting part to a corresponding position, wherein the moving principle is consistent with that of the ratchet wheel control device.
After the movable action is finished, the endoscope needs to be fixed in the first direction or the second direction, the regulating and controlling piece in the corresponding ratchet wheel control device is shifted to the locking position, the control groove of the regulating and controlling piece does not extrude the pawl, the pawl is contacted with the ratchet wheel, the positive direction and the negative direction are limited at the moment, and the stop state can be achieved.
The endoscope operating device realizes the control of the rotating wheel core by designing the ratchet wheel control device and utilizing the advantages of forward rotation, reverse rotation, stopping and the like of the fixing piece, the adjusting piece, the ratchet wheel core and the ratchet wheel disc of the ratchet wheel control device, further achieves the control in the direction of the endoscope, enables the endoscope to move or lock in the direction, and is convenient to use and operated by one hand. The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A bidirectional ratchet operating device of a medical endoscope is characterized by comprising a shell, a rotating wheel core arranged in the shell, a fixing piece fixedly connected with the shell and a ratchet control device in transmission connection with the rotating wheel core;
the rotating wheel core comprises a rotating wheel fixedly connected with the traction steel wire and a connecting rod axially and fixedly connected to the rotating wheel;
the ratchet control device comprises a regulating part, a ratchet core and a ratchet disc which are sequentially arranged; the connecting rod is in transmission connection with the ratchet wheel disc;
the fixing piece is fixedly connected with the shell, the fixing piece, the ratchet core and the regulating piece are provided with through holes, and the connecting rod penetrates through the through holes of the fixing piece and the regulating piece and then is in transmission connection with the ratchet disc; the ratchet core is provided with a pawl, the ratchet plate is provided with a ratchet, and the pawl is matched with the ratchet; the adjusting and controlling piece is matched with the ratchet wheel core and used for controlling the matching state of the pawl and the ratchet wheel;
the fixing piece is provided with a boss, and the ratchet wheel core is sleeved on the boss in a non-rotatable manner; the ratchet wheel core is circular and provided with an accommodating groove, a reset spring is arranged at the bottom of the accommodating groove, one end of the pawl is movably arranged in the accommodating groove, and the other end of the pawl extends out of the accommodating groove;
the adjusting and controlling piece is of an annular structure, the adjusting and controlling piece is sleeved outside the ratchet core, and the adjusting and controlling piece is in clearance fit with the ratchet core; the outer side of the regulating and controlling part is provided with a deflector rod, the inner side of the regulating and controlling part is provided with a control groove, two side edges of the control groove are smoothly connected with the edge of the inner side of the regulating and controlling part, and the control groove is correspondingly matched with the pawl.
2. The medical endoscope bi-directional ratcheting device of claim 1, wherein the ratchet plate has corrugations on the outside and the ratchet plate has ratchet wheels on the inside.
3. The bidirectional ratcheting device of any one of claims 1 or 2, further comprising a limiting device comprising two limiting grooves disposed inside the adjustment member or outside the ratchet core; the limiting device further comprises a limiting protruding structure matched with the limiting groove, the limiting protruding structure comprises a reset spring arranged in the reset groove and a protruding part located at the top end of the reset spring, and the limiting protruding structure is arranged on the outer side of the ratchet core or on the inner side of the regulating part.
4. The medical endoscope bidirectional ratcheting apparatus of any one of claims 1 or 2, wherein the rotation wheel core comprises a first rotation wheel core that controls movement of the endoscope in a first direction and a second rotation wheel core that controls movement of the endoscope in a second direction; the ratchet control device comprises a first ratchet control device and a second ratchet control device, the first rotating wheel core is in transmission connection with the first ratchet control device, and the second rotating wheel core is in transmission connection with the second ratchet control device.
5. The bidirectional ratcheting apparatus of claim 4, further comprising a stator and a locking member, wherein the stator comprises a fixed plate and a fixing rod axially and fixedly connected to the fixed plate, and the fixing rod passes through the first rotating core, the second rotating core, the first ratchet control device and the second ratchet control device and then is fixedly connected to the locking member.
6. The medical endoscope bi-directional ratcheting apparatus of claim 4, further comprising a first latch for locking the first ratchet control device to the stationary member and a second latch for locking the second ratchet control device to the stationary member.
7. The medical endoscope bi-directional ratcheting device of claim 4, further comprising a first catch, a second catch, and a third catch; the first buckle is used for clamping the first rotating wheel core, the fixing piece and the first ratchet wheel control device to prevent displacement, and the second buckle is used for isolating the first ratchet wheel control device from the second ratchet wheel control device to avoid mutual influence; the third buckle is used for clamping the second rotating wheel core, the fixing piece and the second ratchet wheel control device to prevent displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810874667.2A CN109222855B (en) | 2018-08-03 | 2018-08-03 | Bidirectional ratchet wheel operating device for medical endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810874667.2A CN109222855B (en) | 2018-08-03 | 2018-08-03 | Bidirectional ratchet wheel operating device for medical endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109222855A CN109222855A (en) | 2019-01-18 |
| CN109222855B true CN109222855B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810874667.2A Active CN109222855B (en) | 2018-08-03 | 2018-08-03 | Bidirectional ratchet wheel operating device for medical endoscope |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112460280A (en) * | 2020-10-30 | 2021-03-09 | 上海江南长兴造船有限责任公司 | Valve locking device for valve extension rod |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507717A (en) * | 1993-05-24 | 1996-04-16 | Olympus Optical Co., Ltd. | Device for bending the insertion section of an endoscope |
| US5464007A (en) * | 1994-02-23 | 1995-11-07 | Welch Allyn, Inc. | Fluid insensitive braking for an endoscope |
| CN205555939U (en) * | 2016-04-01 | 2016-09-07 | 杭州贝特设备制造有限公司 | Take ratchet fixing device's chain formula lever block |
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- 2018-08-03 CN CN201810874667.2A patent/CN109222855B/en active Active
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