CN109008904B

CN109008904B - Endoscope operation part and endoscope

Info

Publication number: CN109008904B
Application number: CN201810874629.7A
Authority: CN
Inventors: 张俊俊; 辜嘉
Original assignee: Suzhou Zhongke Advanced Technology Research Institute Co Ltd
Current assignee: Suzhou Zhongke Advanced Technology Research Institute Co Ltd
Priority date: 2018-08-03
Filing date: 2018-08-03
Publication date: 2020-12-18
Anticipated expiration: 2038-08-03
Also published as: CN109008904A

Abstract

An endoscope operation part comprises a rotating wheel assembly, a single-tooth ratchet wheel assembly and a deflector rod; the rotating wheel assembly comprises a rotating wheel and a rotating wheel jacket; the single-tooth ratchet wheel component comprises a ratchet wheel core, an elastic sliding component, a limiting terminal and a regulating and controlling component; the deflector rod is sleeved on the rotating shaft. The endoscope operation part adopts the single external tooth ratchet wheel to fix the operation rotating wheel, can realize two functions of free forward rotation and reverse rotation of the rotating wheel and locking, and has convenient use and single-hand operation. The doctor can separate hands to operate on the focus part under the condition of limiting the position. Compared with the traditional endoscope operation part, the fixing mode is more precise in limiting the fixing mode, the fixing mode is stable, and the operation is more convenient. Further, an endoscope including the endoscope operation portion is provided. The endoscope can achieve the effects of controlling the snake bone suction head to swing back and forth and limiting the swing position by pulling the adjusting part forwards and backwards, and is convenient to use and operable by one hand.

Description

Endoscope operation part and endoscope

Technical Field

The invention relates to the technical field of medical instruments, in particular to an endoscope operating part and an endoscope.

Background

When a hospital needs to use an endoscope for examination and treatment, an electronic endoscope is needed. Sometimes, in order to fix the head end direction and prevent an accident from occurring, the endoscope operation portion 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 endoscope is generally of two types, namely a side runner type and a side poking rod type. Traditional avris runner formula fixed scheme relies on the increase frictional force to fix for toggle switch, and needs to pay attention to toggle switch and prevents that it from skidding, causes the skew of head end direction. The side shifting levers do not provide a means for attachment.

Disclosure of Invention

In view of this, it is desirable to provide an endoscope operation section and an endoscope that can be operated with one hand and that can fix the head end direction well.

An endoscope operation part comprises a rotating wheel assembly, a single-tooth ratchet wheel assembly and a deflector rod;

the rotating wheel assembly comprises a rotating wheel and a rotating wheel outer sleeve, the rotating wheel comprises a rotating disc and a rotating shaft, the rotating shaft is fixedly connected with one side of the rotating disc, an outer gear is arranged at one end, away from the rotating disc, of the rotating shaft, the rotating wheel outer sleeve is sleeved on the rotating shaft, and one end, provided with the outer gear, of the rotating shaft penetrates out of the rotating wheel outer sleeve;

the single-tooth ratchet wheel component comprises a ratchet wheel core, an elastic sliding component, a limiting terminal and a regulating and controlling component;

the ratchet wheel core is sleeved on the rotating wheel outer sleeve, a blind hole and a through groove are formed in the periphery of the ratchet wheel core along the radial direction, the blind hole and the through groove are arranged at intervals, and the elastic sliding assembly is arranged in the blind hole;

the limiting terminal comprises a limiting part and a first elastic part, the limiting part comprises a limiting main body and a buckling part fixedly connected with the limiting main body, the limiting main body is arranged in the through groove, the first elastic part is arranged at one end of the limiting main body, and one end of the limiting main body, which is far away from the first elastic part, penetrates out of the through groove;

the regulating part is sleeved at one end of the rotating shaft, which is provided with the external gear, the regulating part comprises a top plate and a regulating ring formed by extending the edge of the top plate along the direction vertical to the plane of the top plate, the ratchet core is arranged in a containing cavity formed by the regulating ring and the external gear, the inner side of the regulating ring is provided with a first groove and a second groove, one end of the elastic sliding component, which is far away from the bottom of the blind hole, can slide between the first groove and the second groove, one end of the first elastic component, which is far away from the limiting main body, is in contact with the inner side of the regulating ring, one end of the limiting main body, which is far away from the first elastic component, is used for limiting the external gear, the top plate is provided with a strip-shaped regulating hole, and the distance from one end of the regulating hole to the circle center of the top plate is smaller than the distance from the, the buckling part is arranged in the regulating hole and can slide in the regulating hole;

the deflector rod is sleeved on the rotating shaft.

The endoscope operation part adopts the single external tooth ratchet wheel to fix the operation rotating wheel, can realize two functions of free forward rotation and reverse rotation of the rotating wheel and locking, and has convenient use and single-hand operation. The doctor can separate hands to operate on the focus part under the condition of limiting the position. Compared with the traditional endoscope operation part, the fixing mode is more precise in limiting the fixing mode, the fixing mode is stable, and the operation is more convenient.

In one embodiment, the elastic sliding assembly includes a second elastic member and a bead, one end of the second elastic member contacts with the bottom of the blind hole, the bead is disposed at the other end of the second elastic member, the bead is partially accommodated in the first groove or the second groove, and the bead is slidable between the first groove and the second groove.

In one embodiment, the first and second elastic members are each a spring.

In one embodiment, the poking rod comprises a poking disc and a poking rod fixedly connected with the poking disc, the poking disc is circular, a third through hole is formed in the middle of the poking disc, the shape of the third through hole is matched with the structure of one end, far away from the rotating disc, of the rotating shaft, and one end, far away from the poking disc, of the poking rod extends to one end, close to the rotating disc, of the poking rod.

In one embodiment, the wheel housing is fixedly connected to the housing of the operating portion.

In one embodiment, the limiting terminal further comprises a connecting portion fixedly connected with the limiting main body, a third groove is formed in the edge of the through groove, and the connecting portion is clamped in the third groove.

In one embodiment, a fixing screw is arranged at the end part of one end of the rotating shaft, which is far away from the rotating wheel, and the shifting lever and the regulating and controlling part are fixed on the rotating shaft by the fixing screw.

In one embodiment, the ratchet wheel further comprises a nut, the nut is sleeved on the wheel outer sleeve, and the nut is used for locking the ratchet wheel core on the wheel outer sleeve.

In one embodiment, the ratchet mechanism further comprises a casing member, the casing member is arranged on the outer sleeve of the rotating wheel, and the casing member is arranged on one side of the ratchet core far away from the shifting rod.

The endoscope comprises a snake bone suction head and the endoscope operation part, wherein the snake bone suction head is connected with the endoscope operation part.

According to the endoscope, the operating part of the endoscope adopts the single external tooth ratchet wheel to fix the operating rotating wheel, so that two functions of rotating the rotating wheel in a forward and reverse manner and locking the rotating wheel can be realized. The adjusting part is pulled forwards and backwards, so that the effects of controlling the snake bone suction head to swing back and forth and limiting the swing position can be achieved, the use is convenient, and the operation can be carried out by one hand.

Drawings

FIG. 1 is an exploded view of a viewing angle of an endoscope operating portion according to one embodiment;

FIG. 2 is an exploded view of the operating section of the endoscope shown in FIG. 1 from another perspective;

FIG. 3 is an assembled view of the endoscope operating section shown in FIG. 1;

FIG. 4 is a cross-sectional view schematically showing the operation portion of the endoscope shown in FIG. 3;

FIG. 5 is a schematic view of the elastic sliding member at the first groove of the annular adjuster;

FIG. 6 is a schematic view of another perspective of the resilient sliding member at the first groove of the annular adjuster;

FIG. 7 is a schematic view of the elastic sliding element at the second groove of the ring-shaped controlling member;

FIG. 8 is a schematic view of another perspective of the resilient sliding member at the second groove of the annular adjuster;

fig. 9 is a schematic configuration diagram of an endoscope according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4, an endoscope operating portion 100 of an embodiment includes a wheel assembly, a single-tooth ratchet assembly, and a shift lever 70.

The wheel assembly includes a wheel 10 and a wheel sleeve 20. The rotary wheel 10 comprises a rotary disc 12 and a rotary shaft 14, and the rotary shaft 14 is fixedly connected with one side of the rotary disc 12. The end of the shaft 14 remote from the turntable 12 is provided with an external gear 16. The runner 10 is mainly used for driving the traction wire to move so as to enable the snake bone at the end part of the endoscope to move. The wheel 10 is moved by the force transmitted from the lever 70.

The wheel outer sleeve 20 is sleeved on the rotating shaft 14, and one end of the rotating shaft 14, provided with the outer gear 16, penetrates through the wheel outer sleeve 20. The rotor sleeve 20 is primarily used to secure the rotor 10 while limiting the range of rotation of the rotor 10. The wheel housing 20 is fixedly connected to the housing of the endoscope operation section.

The single-tooth ratchet assembly comprises a ratchet core 30, an elastic sliding assembly 40, a limit terminal 50 and a regulating part 60.

The ratchet core 30 is sleeved on the outer sleeve 20. Referring to fig. 1, the ratchet core 30 has a blind hole 32 and a through groove 34 along the radial direction. The blind holes 32 and the through grooves 34 are spaced apart. A resilient slide assembly 40 is disposed within the blind bore 32.

Further, the ratchet core 30 is provided with a first through hole 36 penetrating the ratchet core 30. The shape of the first through hole 36 matches with the structure of the end of the wheel housing 20 away from the rotating disc 12, so that the ratchet core 30 can be well fixed and cannot move axially.

The position limiting terminal 50 includes a position limiting member 52 and a first elastic member 54. The position-limiting member 52 includes a position-limiting main body 522 and a fastening portion 524 fixedly connected to the position-limiting main body 522. The limiting body 522 is arranged in the through groove 34. The first elastic element 54 is disposed at one end of the limiting body 522, and one end of the limiting body 522 far away from the first elastic element 54 passes through the through slot 34. In the present embodiment, the first elastic member 54 is a spring. It is understood that in other embodiments, the first elastic member 54 may be an elastic member of other elastic materials. The first elastic member 54 is used to provide a resilient elastic force to the limiting member 52.

Further, the position limiting terminal 50 further includes a connecting portion 526 fixedly connected to the position limiting body 522. The edge of the through slot 34 is provided with a third groove (not shown), and the connecting portion 526 is clamped in the third groove.

The adjusting member 60 is sleeved on one end of the rotating shaft 14 where the external gear 16 is disposed. The adjustment member 60 includes a top plate 62 and an adjustment ring 64 formed by an edge of the top plate 62 extending in a direction perpendicular to a plane of the top plate 62. Further, the top plate 62 is provided with a second through hole 622, and the shape of the second through hole 622 matches with the structure of the end of the rotating shaft 14 far away from the rotating disc 12.

Referring to fig. 4, the ratchet core 30 is disposed in a cavity (not shown) formed by the adjustment ring 64 and the outer gear 16. Referring to fig. 2, the inner side of the adjusting ring 64 is formed with a first groove 63 and a second groove 65. The end of the resilient slide assembly 40 remote from the bottom of the blind bore 32 is slidable between the first recess 63 and the second recess 65. Further, the elastic sliding assembly 40 includes a second elastic member 42 and a bead 44. One end of the second elastic member 42 is in contact with the bottom of the blind hole 32. A bead 44 is provided at the other end of the second elastic member 42. The ball 44 is partially received in the first groove 63 or the second groove 65, and the ball 44 is slidable between the first groove 63 and the second groove 65. In the present embodiment, the second elastic member 42 is a spring. It is understood that in other embodiments, the second elastic member 42 may have other elastic structures. In the present embodiment, the beads 44 are steel beads. It is understood that in other embodiments, the beads 44 may be beads of other materials.

A strip-shaped regulating hole 67 is formed in the top plate 62, and the distance from one end of the regulating hole 67 to the center of the top plate 62 is smaller than the distance from the other end of the regulating hole 67 to the center of the top plate 62. The locking portion 524 is disposed in the adjustment hole 67, and the locking portion 524 is slidable in the adjustment hole 67. When the adjusting member 60 is operated, the locking portion 524 slides in the adjusting hole 67, and the locking portion 524 drives the limiting terminal 50 to move up and down. One end of the first elastic element 54 away from the limiting body 52 is in contact with the inner side of the regulating ring 64. An end of the limiting body 52 away from the first elastic member 54 is used for limiting the external gear 16.

Further, a poking sheet 68 is fixedly arranged on the periphery of the regulating ring 64. The user can conveniently adjust and control. Limiting the forward rotation, reverse rotation, and stopping of the wheel 10 may be accomplished by adjusting the position of the toggle tabs 68.

One end of the shift lever 70 is sleeved on the rotating shaft 14. Further, the toggle lever 70 includes a toggle plate 72 and a toggle rod 74 fixedly connected to the toggle plate 72. The dial plate 72 is circular. The middle of the dial plate 72 is provided with a third through hole 76. The third through hole 76 is shaped to match the configuration of the end of the shaft 14 remote from the turntable 12. When the lever 70 moves, the wheel 10 also moves. An end of the tap lever 74 remote from the tap plate 72 extends towards an end adjacent the turntable 12.

In the present embodiment, the endoscope operation portion 100 further includes a nut 80. The nut 80 is sleeved on the wheel housing 20, and the nut 80 is used for locking the ratchet wheel core 30 on the wheel housing 20 to prevent the ratchet wheel core from moving. It is understood that in other embodiments, the ratchet wheel core 30 can be fixed to the wheel housing 20 in other manners.

The end of the rotating shaft 14 far away from the rotating wheel 12 is provided with a fixing screw 85. The set screw 85 secures the shift lever 70 and the actuator 60 to the shaft 14 to form a common body of motion.

In the present embodiment, the endoscope operation portion 100 further includes a sheath member 90. The housing member 90 is disposed on the wheel housing 20, and the housing member 90 is disposed on a side of the ratchet core 30 remote from the dial plate 72. The main function of the outer shell 90 is to facilitate the addition of sealing rings to the outer and inner parts, thereby achieving the waterproof effect of the product.

The endoscope operation section 100 is locked when the operation control member 60 is pulled backward. As shown in fig. 6, the locking portion 524 of the position limiting terminal 50 is located at one end of the adjusting hole 67 of the adjusting member 60, which is close to the center of the top plate 62. At this time, one end of the limiting body 522 of the limiting terminal 50, which is far away from the first elastic body 54, is clamped in the gap of the external gear (see fig. 5), so as to interfere with the movement of the external gear 16, and thus the external gear cannot rotate clockwise or counterclockwise. That is, the dial 70 cannot rotate the turning wheel 10, and the endoscope operation portion 100 is in a locked state.

When the adjusting member 60 is pulled forward, the state of free movement is obtained. As shown in fig. 8, since the adjusting member 60 is pulled forward, the buckling portion 524 of the limiting terminal 50 is pressed by the adjusting member 60, so that the position of the buckling portion 524 in the adjusting hole 67 is changed to the end of the adjusting hole 67 far from the center of the top plate 62. That is, the distance between the locking portion 524 and the center of the top plate 62 is increased. Therefore, the end of the position limiting body 522 of the position limiting terminal 50 away from the first elastic body 54 is away from the interference area of the external gear 16 (see fig. 7), and cannot affect the clockwise and counterclockwise rotation of the external gear 16, i.e. the rotating shaft 14 can normally perform clockwise or counterclockwise movement. That is, by dialing the dial 70, the rotating shaft 14 and the rotating disc 12 can be driven to move clockwise or counterclockwise.

The endoscope operation part 100 adopts the single external tooth ratchet wheel to fix the operation rotating wheel 12, can realize two functions of free forward rotation, reverse rotation and locking of the rotating wheel 12, and has convenient use and single-hand operation. The doctor can separate hands to operate on the focus part under the condition of limiting the position, such as cleaning, sucking effusion, taking biopsy and the like. Compared with the traditional endoscope operation part, the fixing mode is more precise in limiting the fixing mode, the fixing mode is stable, and the operation is more convenient.

Referring to fig. 9, an endoscope according to an embodiment is provided, which includes a snake bone suction head and the endoscope operation unit 100, and the snake bone suction head is connected to the endoscope operation unit 100.

In the endoscope, the operating part of the endoscope adopts the single external tooth ratchet wheel to fix the operating runner 12, so that two functions of free forward rotation, reverse rotation and locking of the runner 12 can be realized. By pulling the adjusting part 60 forwards and backwards, the effects of controlling the snake bone suction head to swing back and forth and limiting the swing position can be achieved, and the snake bone suction head is convenient to use and can be operated by one hand.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An endoscope operation part is characterized by comprising a rotating wheel assembly, a single-tooth ratchet wheel assembly and a deflector rod;

the deflector rod is sleeved on the rotating shaft.

2. The endoscope operating portion of claim 1, wherein the elastic sliding assembly comprises a second elastic member and a bead, one end of the second elastic member contacts the bottom of the blind hole, the bead is disposed at the other end of the second elastic member, a portion of the bead is received in the first groove or a portion of the bead is received in the second groove, and the bead is slidable between the first groove and the second groove.

3. The endoscope operating section according to claim 2, wherein each of the first elastic member and the second elastic member is a spring.

4. The endoscope operating section according to claim 1, wherein the lever comprises a dial plate and a lever fixedly connected to the dial plate, the dial plate is circular, a third through hole is formed in a middle portion of the dial plate, a shape of the third through hole matches with a structure of an end of the rotating shaft away from the rotating plate, and an end of the lever away from the dial plate extends toward an end close to the rotating plate.

5. The endoscope operating section according to claim 1, wherein the wheel housing is fixedly connected to a housing of the operating section.

6. The endoscope operating section according to claim 1, wherein the limiting terminal further comprises a connecting portion fixedly connected to the limiting main body, a third groove is formed in an edge of the through groove, and the connecting portion is engaged in the third groove.

7. The endoscope operating section according to claim 1, wherein a fixing screw is provided at an end of the rotating shaft at an end thereof remote from the rotating wheel, and the fixing screw fixes the shift lever and the control member to the rotating shaft.

8. The endoscope operating portion of claim 1, further comprising a nut disposed over the wheel housing, the nut for locking the ratchet core to the wheel housing.

9. The endoscope operating section of claim 1 further comprising a housing member disposed on the wheel housing and on a side of the ratchet core remote from the shifter lever.

10. An endoscope characterized by comprising a snake bone suction head and an endoscope operation part as described in any one of claims 1 to 9, the snake bone suction head and the endoscope operation part being connected.