CN116831502A - Endoscope handle and endoscope system - Google Patents

Abstract

The embodiment of the application provides an endoscope handle and an endoscope system, wherein the endoscope handle comprises: a housing; the sliding rail is arranged in the accommodating cavity of the shell; the two starting slide blocks are arranged on the slide rail, the starting slide blocks are provided with coupling parts, and the coupling parts are used for driving the bending control wires of the consumable mechanism to perform retraction movement; the driving wheel assembly is arranged in the shell, a traction wire is arranged on the driving wheel assembly, one end of the traction wire is connected to the starting slide block, the other end of the traction wire is connected to the driving wheel and used for driving the starting slide block to slide the operation part, and the driving wheel assembly is connected with the driving wheel assembly and used for driving the driving wheel assembly to rotate; the sliding rail comprises two rails which are oppositely arranged, the first starting sliding block is arranged on the first rail, and the second starting sliding block is arranged on the second rail. In the technical scheme of the application, the two opposite rails are arranged on the sliding rail, and the starting slide block is arranged on the rails, so that the structure of the endoscope handle can be simplified, the butt joint with the consumable mechanism is convenient, and meanwhile, the operation of a user is also convenient.

Description

Endoscope handle and endoscope system

Technical Field

The application relates to the technical field of medical instruments, in particular to an endoscope handle and an endoscope system.

Background

An endoscope is a device integrated with an image sensor, an optical lens, an illumination light source, and a precision mechanical structure. The endoscope can enter the inside of the cavity of the human body through the oral cavity or other pore canals and can observe tissues in the human body, carry out biopsy, minimally invasive surgery and the like. A flexible endoscope generally includes a control unit and a flexible tube unit. The hose portion further includes a distal end portion, a bent portion, and an insertion portion. The control part drives the hose bending part to realize the bending action. Along with the development of electromechanical technology, the application of the electric endoscope is more and more extensive, and the electric endoscope can be carried with a robot platform to replace or assist human work, so that the accurate, automatic and intelligent operation control of the endoscope in a long time is realized.

However, in clinical procedures, it is sometimes necessary for the operator to rapidly treat the proximal location of the patient's lumen (e.g., clear sputum) or even repeatedly access the lumen multiple times before the distal end of the flexible tube reaches the distal target location of the patient's lumen. In this case, the endoscope driven by the motor is inconvenient to use, and the endoscope which can be operated manually is more convenient to operate. The endoscope, which is usually manually driven, is complex in structure, inconvenient to dock with the consumable mechanism, and inconvenient to hold by a user.

Disclosure of Invention

The present application has been made in view of the above problems, and provides an endoscope handle and an endoscope system that solve the above problems.

An embodiment of the present application provides an endoscope handle including:

a housing;

the sliding rail is arranged in the accommodating cavity of the shell;

the two starting slide blocks are arranged on the slide rail, the starting slide blocks are provided with coupling parts, and the coupling parts are used for driving bending control wires of the consumable mechanism to perform retraction movement;

the driving wheel assembly is arranged in the shell, a traction wire is arranged on the driving wheel assembly, one end of the traction wire is connected to the starting slide block, and the other end of the traction wire is connected to the driving wheel and used for driving the starting slide block to slide

The operation part is connected with the driving wheel assembly and is used for driving the driving wheel assembly to rotate;

the sliding rail comprises two rails which are oppositely arranged, the first starting sliding block is arranged on the first rail, and the second starting sliding block is arranged on the second rail.

Optionally, the drive wheel assembly comprises a first drive wheel and a second drive wheel;

the first driving wheel and the second driving wheel are respectively connected with different traction wires, so that when the first driving wheel and the second driving wheel rotate, the traction wires can drive different starting sliding blocks to slide.

Optionally, the drive wheel assembly further comprises a crank;

the crank is coaxially connected with the first driving wheel, the second driving wheel and the operating part;

the operation part is operated in different directions, and the first driving wheel or the second driving wheel can be driven to rotate through the crank.

Optionally, the first driving wheel and the second driving wheel are both provided with a first connecting part, and the crank is provided with a second connecting part;

when the crank rotates in different directions, the second connecting part is connected with the first connecting part on the first driving wheel or the second driving wheel so as to drive the first driving wheel or the second driving wheel to rotate.

Optionally, the first connecting part is an arc slot, and the second connecting part is a convex rod;

the extending directions of the arc-shaped slotted holes on the first driving wheel and the second driving wheel are opposite.

Optionally, the device further comprises a guide wheel;

the guide wheel is provided with a groove, and the traction wire is arranged in the groove.

Optionally, the device further comprises a guide plate;

the guide plate is arranged on one side of the tail end of the sliding rail, a guide hole is formed in the guide plate, and the traction wire penetrates through the guide hole and then is connected with the driving wheel.

Optionally, a wheel cover is arranged outside the driving wheel, a through hole is formed in the wheel cover, and the traction wire is connected to the driving wheel along the tangential direction of the driving wheel after passing through the through hole.

Optionally, the extending direction of the first coupling part on the first starting slide block is the same as the extending direction of the second coupling part tail end on the second starting slide block;

the second coupling part is of a U-shaped structure, and the sliding rail is arranged in a groove of the U-shaped structure of the second coupling part.

Optionally, the housing comprises a grip;

the holding part is positioned at one side of the operation part, and the extending direction of the holding part is in the same direction as the axis of the sliding rail.

Optionally, the device further comprises a reset piece;

one end of the reset piece is connected with the starting slide block, and the other end of the reset piece is connected with the sliding rail or the shell and used for providing restoring force for the starting slide block.

In another embodiment of the present application, there is also provided an endoscope system including:

the endoscope handle described above;

an electric driving mechanism provided with an electric driving part;

the consumable mechanism can be detachably connected with the endoscope handle and the electric driving mechanism respectively, a follow-up part is arranged on the consumable mechanism, and the follow-up part can be connected with the coupling part and the electric driving part respectively so as to drive the bending control wire of the consumable mechanism to carry out winding and unwinding movements.

In the technical scheme provided by the embodiment of the application, two opposite tracks are arranged on the sliding rail, the starting slide blocks are arranged on the tracks, and different coupling parts on the two starting slide blocks are respectively used for driving two groups of bending control wires on the consumable mechanism. Not only has simplified the structure of endoscope handle, still the person of facilitating the use installs the endoscope handle on the consumable mechanism of electric drive mode to realize the switching to the electric drive of consumable mechanism and manual drive mode, can satisfy the demand of more service scenarios.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of an interventional catheter according to an embodiment of the present application;

FIG. 2 is an exploded view of an endoscope handle provided in accordance with an embodiment of the present application;

FIG. 3 is an interior perspective view of a first endoscope handle provided in accordance with an embodiment of the present application;

FIG. 4 is a partial perspective view of the interior of a first endoscope handle provided in accordance with an embodiment of the present application;

FIG. 5 is a partial perspective view of a slide rail and a start slide block according to an embodiment of the present application;

FIG. 6 is a perspective view of a drive wheel assembly according to an embodiment of the present application;

FIG. 7 is an interior perspective view of a second endoscope handle provided in accordance with an embodiment of the present application;

FIG. 8 is a partial perspective view of the interior of a second endoscope handle provided in accordance with an embodiment of the present application;

FIG. 9 is a cross-sectional view taken along the direction A-A in FIG. 8;

FIG. 10 is an interior perspective view of a third endoscope handle provided in accordance with an embodiment of the present application;

FIG. 11 is a partial perspective view of the interior of a third endoscope handle provided in accordance with an embodiment of the present application;

FIG. 12 is a cross-sectional view taken in the direction B-B of FIG. 11;

FIG. 13 is a front view of another drive wheel assembly provided in accordance with an embodiment of the present application;

FIG. 14 is a top view of another drive wheel assembly provided in accordance with an embodiment of the present application;

FIG. 15 is a perspective view of a first endoscope handle provided in accordance with an embodiment of the present application;

FIG. 16 is a rear perspective view of a first endoscope handle provided in accordance with an embodiment of the present application;

FIG. 17 is a front view of a first endoscope handle provided by an embodiment of the present application;

FIG. 18 is a perspective view of a second endoscope handle provided in accordance with an embodiment of the present application;

FIG. 19 is a rear perspective view of a second endoscope handle provided in accordance with an embodiment of the present application;

FIG. 20 is a front view of a second endoscope handle provided in accordance with an embodiment of the present application;

FIG. 21 is a perspective view of a third endoscope handle provided in accordance with an embodiment of the present application;

FIG. 22 is a rear perspective view of a third endoscope handle provided in accordance with an embodiment of the present application;

FIG. 23 is a front view of a third endoscope handle provided by an embodiment of the present application;

fig. 24 is a front view of an endoscope handle internal assembly and a portion of an interventional catheter in accordance with an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect. In addition, in the embodiment of the present application, plural means two or more. Those skilled in the art may combine and combine the features of the different embodiments or examples described in this specification and of the different embodiments or examples without contradiction.

The interventional catheter of the endoscope is mainly of a double-control bending structure, namely, the direction of the head end of the catheter needs to be controlled through a control bending wire in the using process. Typically, the interventional catheter is controlled by four bending control wires, and bending or Qu Zhi of the catheter tip is achieved by pulling or releasing the bending control wires. Specifically, referring to fig. 1, as can be seen from a cross-sectional view of the interventional catheter, four bending control wires are disposed in the hollow interventional catheter, and the head end of the catheter can be bent in the X direction by simultaneously pulling the AB two bending control wires. When two control bending wires of the CD are simultaneously pulled, the head end of the catheter can be bent towards the Y direction. After withdrawal of the pulling force, the tip of the catheter will recover Qu Zhi. The bending control wires of different groups (the AB two bending control wires are in one group, the CD two bending control wires are in one group) are controlled through the endoscope handle, and the bending in any direction of the plane where the cross section of the interventional catheter is located can be realized by matching with the rotation of the interventional catheter.

Based on the use characteristics of medical instruments, a complete set of endoscope system is generally composed of a control handle and a consumable mechanism, and an interventional catheter is generally arranged on the consumable mechanism. The control handle is a reusable instrument, and the consumable mechanism is a disposable instrument. After the medical task is finished once, the control handle can be recovered, and a new consumable mechanism can be used for being in butt joint with the control handle when the medical task is finished next time, so that the cost of the medical task can be effectively saved, and the medical burden is lightened for patients.

The consumable mechanism of the endoscope system can be in butt joint with the manual control handle and the electric control handle. And the endoscope system is carried on the robot platform, so that the operation of a doctor part can be replaced or assisted, and the accurate, automatic and intelligent operation control of the endoscope system in a long time can be realized. However, in the clinical use process, before the head end of the interventional catheter reaches the target position at the far end of the human body cavity, the near end of the human body cavity needs to be rapidly processed sometimes, and even the interventional catheter needs to be repeatedly moved into and out of the human body cavity many times. In this case, the doctor can operate more conveniently using a manually driven endoscope. The endoscope with the electric driving function can not meet the use requirement, and a set of manually driven endoscope is additionally arranged in the operation process.

Fig. 2 is an exploded view of an endoscope handle according to an embodiment of the present application, fig. 3 is an internal perspective view of a first endoscope handle according to an embodiment of the present application, and fig. 4 is an internal partial perspective view of the first endoscope handle according to an embodiment of the present application. Referring to fig. 2, 3 and 4, in one embodiment of the present application there is provided an endoscope handle comprising: the device comprises a shell 1, a sliding rail 2, two starting sliding blocks 3, a driving wheel assembly 4 and an operating part 5. The slide rail 2 is arranged in the accommodating cavity of the shell 1. The start sliding block 3 is arranged on the sliding rail 2, and a coupling part is arranged on the start sliding block 3 and used for driving a bending control wire of a consumable mechanism (not shown in the figure) to perform winding and unwinding movements. The drive wheel assembly 4 is arranged in the shell 1, a traction wire 6 is arranged on the drive wheel assembly 4, one end of the traction wire 6 is connected to the starting slide block 3, and the other end of the traction wire is connected to the drive wheel assembly 4 and used for driving the starting slide block 3 to slide. The operating portion 5 is connected to the driving wheel assembly 4, and is used for driving the driving wheel assembly 4 to rotate. The slide rail 2 includes two tracks disposed opposite to each other, a first start slider 31 is disposed on the first track, and a second start slider 32 is disposed on the second track. Specifically, the slide rail 2 is disposed in the track along the length direction of the housing 1, different start sliding blocks 3 can independently slide on the track, and the coupling parts on the different start sliding blocks 3 (the first start sliding block 31 or the second start sliding block 32) can drive different groups of bending control wires on the consumable mechanism to retract.

After the user grips the housing 1, the user can rotate the operating portion 5 in different directions by the thumb, and the driving wheel assembly 4 connected to the operating portion 5 will rotate along with it. During rotation of the drive wheel assembly 4, the traction wire 6 connected to the drive wheel assembly 4 will pull the pick-up slider 3 to slide on the slide rail 2. At this time, the coupling part on the starting slide block 3 can drive different groups of bending control wires to be retracted and extended.

In a specific embodiment, the slide rail 2 may be a rail provided with two parallel tracks. For example, the upper surface of the slide rail 2 is provided with one rail, and the lower surface of the slide rail 2 is provided with the other rail. The two slide rails 2 may be stacked and connected in parallel by a fastener to form one slide rail 2 having two rails.

The control bending wire at the starting end of the interventional catheter 10 is provided with a follow-up part (positioned on the consumable mechanism), and when the consumable mechanism is connected to the endoscope handle, the coupling part is connected with the follow-up part. Along with the sliding of the starting slide block 3, the coupling part drives the following part to act together, and further pulls the bending control wire, so that the head end of the interventional catheter 10 can be bent.

Only a single set of bending control wires is driven to bend the head end of the interventional catheter 10, so that when the operation part 5 rotates in different directions, the driving wheel assembly 4 must drive the different starting slide blocks 3 to slide independently. Referring to fig. 2, 4, 6, 8 and 14, in one embodiment provided by the present application, the drive wheel assembly 4 includes a first drive wheel 41 and a second drive wheel 42. The first driving wheel 41 and the second driving wheel 42 are respectively connected with different traction wires, so that when the first driving wheel 41 and the second driving wheel 42 rotate, different starting slide blocks 3 can be driven to slide by the traction wires. Specifically, during the rotation of the driving wheel, the traction wire 6 is wound on the driving wheel, and then the start sliding block 3 at the other end of the traction wire is pulled.

For example, in one embodiment, the operation part 5 has a middle position, and when the operation part 5 rotates clockwise by a certain angle from the middle position, the operation part 5 drives the first driving wheel 41 to rotate clockwise, and the first traction wire on the first driving wheel 41 pulls the first start sliding block 31 to slide. When the operation part 5 rotates a certain angle from the middle position anticlockwise, the operation part 5 drives the second driving wheel 42 to rotate anticlockwise, and the second traction wire on the second driving wheel 42 pulls the second starting slide block 32 to slide.

In the technical scheme provided by the application, the operation part 5 and the driving wheel can synchronously rotate or differentially rotate. For example, when the operation portion 5 is directly coaxially connected to the driving wheel, the operation portion 5 rotates in synchronization with the driving wheel. This is achieved by providing a differential between the drive wheel and the operating part 5, the operating part 5 rotating differentially from the drive wheel.

The sliding distance of the start slider 3 can be determined by the rotation angle of the operation portion 5, and when the rotation angle of the operation portion 5 is larger, the longer the sliding distance of the start slider 3 is, and the larger the angle at which the head end of the interventional catheter 10 is bent is.

The relationship between the rotation angle of the operation portion 5 and the angle at which the head end of the interventional catheter 10 is bent will be described in detail by a specific formula.

Referring to fig. 24 in combination, f represents the amount of handle driving force.

Fr represents the axial resistance force exerted on the start slide 3, which is normally an intrinsic value, in relation to the structure of the endoscopic interventional catheter 10.

r represents the radius of the drive wheel assembly 4. The radius of the drive wheel assembly 4 may take different values when pushing up and pulling down the drive wheel assembly 4.

R represents the length of the operation portion 5.

L1 represents the rotational travel of the drive wheel assembly 4 at the push-up angle, l1=s1=βrpi/180

L2 represents the rotational travel of the drive wheel assembly 4 at the pull-down angle, l1=s2=αrpi/180

Alpha represents the angle of the lower plate of the operation part 5.

Beta represents the angle by which the operating portion 5 is pushed up.

θ represents the angle of controlled bending at the head end of interventional catheter 10.

Gamma represents the head end angle of the interventional catheter 10.

S1 represents the stroke of the first start slider 31 when the head end of the interventional catheter 10 is bent down (Y direction in fig. 1).

S2 represents the stroke of the second start slide 32 when the head end of the interventional catheter 10 is bent up (X direction in fig. 1).

Because the limit angle of the single push-up and the single pull-down of the thumb is not more than 75 DEG, the thumb has

α≤75°，β≤75°

The head end bending control angles θ, γ of the interventional catheter 10 are functions of the strokes S1, S2 of the start slider 3 when the head end of the interventional catheter 10 is bent, and can be expressed as an empirical formula:

the function f reflects the configuration of the endoscopic interventional catheter 10, and is generally related to factors such as diameter, material, structure, etc. Preferably, 210 DEG.gtoreq.theta.gtoreq.90 DEG, 210 DEG.gtoreq.gamma.gtoreq.90 deg. After θ and γ are determined, S1 and S2 may be obtained from the above empirical formula or may be obtained by actual measurement.

The operating portion 5 is usually driven by the thumb of the left hand, and the driving force of the operating portion 5 is preferably not excessively large, preferably F <20N.

When friction force of the pulley is not counted, the thumb drives the operation part 5, and the following are:

fr is generally an intrinsic value associated with the structure of the endoscopic interventional catheter 10. When lowering of F is required, this can be achieved by increasing the length R of the operating portion 5 and lowering the radius R of the drive wheel assembly 4.

The length R of the operation part 5 is limited by the thumb, and the operation is convenient for users, so that R is less than or equal to 35mm

While the radius r of the drive wheel assembly 4 is constrained by the head end control bend angle θ, γ of the endoscopic interventional catheter 10 and is not too small. According to the above formula, by setting the length R of the operation portion 5 and the radius R of the driving wheel assembly 4, the relationship between the rotation angle of the operation portion 5 and the angle at which the head end of the interventional catheter 10 is bent can be adjusted.

Referring to fig. 2, 6, 8, 13 and 14, in one embodiment of the present application, the driving wheel assembly 4 further includes a crank 7, where the crank 7 is coaxially connected to the first driving wheel 41, the second driving wheel 42 and the operating portion 5, and the operating portion 5 is operated in different directions, so that the first driving wheel or the second driving wheel can be driven to rotate by the crank 7. Specifically, when the operating portion 5 is rotated from the neutral position in the clockwise direction, the crank 7 rotates together with the operating portion 5, and transmits torque to one of the driving wheels. When the operating portion 5 rotates from the neutral position in the clockwise direction, the crank 7 rotates together with the operating portion 5 and transmits torque to the other one of the driving wheels. The crank 7 may be one or a plurality of. For example, as shown in fig. 4 and 6, two driving wheels are coaxially arranged in parallel, and one crank 7 is provided on each of the outward sides of the driving wheels. As shown in fig. 8, for example, a crank 7 is provided between two drive wheels coaxially arranged in parallel.

Further, referring to fig. 9 in combination, both the first drive wheel 41 and the second drive wheel 42 are provided with a first connection portion 71 and the crank 7 is provided with a second connection portion 72. When the crank 7 rotates in different directions, the second connection portion 72 is connected with the first connection portion 71 on the first driving wheel 41 or the second driving wheel 42, respectively, to drive the first driving wheel 41 or the second driving wheel 42 to rotate. Specifically, when the crank 7 is in the neutral position, the second connecting portion 72 is disconnected from the first connecting portion 71. The crank 7 is rotated clockwise from the neutral position, and the second connecting portion 72 is connected with the first connecting portion 71 of the first driving wheel 41 and transmits the transmission torque to the first driving wheel 41. The crank 7 rotates counterclockwise from the neutral position, and the second connecting portion 72 is connected to the first connecting portion 71 of the second driving wheel 42 and transmits the transmission torque to the second driving wheel 42. When the crank 7 drives one of the driving wheels to rotate, the second connecting part 72 is always disconnected from the first connecting part 71 of the other driving wheel, so that the crank 7 can only drive one of the driving wheels to rotate when rotating.

Further, referring to fig. 2, 9 and 13, in one embodiment of the present application, the first connecting portion 71 is an arc slot, the second connecting portion 72 is a protruding rod, and the extending directions of the grooves on the first driving wheel 41 and the second driving wheel 42 are opposite. Specifically, the arc slotted hole penetrates through the side face of the driving wheel, and the circle center of the arc slotted hole coincides with the circle center of the driving wheel. The protruding rod is arranged on the crank, or a longer protruding rod traverses the arc slotted holes on the two driving wheels, and the two ends of the protruding rod are respectively connected to different cranks 7.

The first connecting portion 71 may be an arc-shaped groove or a limit protrusion, in addition to the arc-shaped slot. For example, when the first connecting portion 71 is a limit projection, the second connecting portion 72 is located between limit projections on different two driving wheels. When the second connection portion 72 rotates clockwise, it can abut against the limit projection on the first driving wheel 41 and transmit the driving force. When the second connection portion 72 rotates counterclockwise, it can abut against the limit projection on the second driving wheel 42 and transmit the driving force.

Referring to fig. 2, 3 and 4, in order to ensure that the direction of elongation of the traction wire 6 is substantially parallel to the length direction of the slide rail 2. In one embodiment of the application, the endoscope handle further comprises a guide wheel 8, a groove is arranged on the guide wheel 8, and the traction wire 6 is arranged in the groove. Specifically, the guide wheel 8 is arranged on an extension line of the length direction of the sliding rail 2, at least two grooves are formed in the guide wheel 8, and different traction wires 6 are arranged in the different grooves. In a specific embodiment, the guide wheel 8 may be rotated or non-rotated when the traction wire 6 is pulled. For example, when the guide wheel 8 is in a non-rotating arrangement, the grooves on the guide wheel 8 are relatively smooth, or the grooves are grease coated, and when the traction wire 6 is pulled, the traction wire 6 can slide in the grooves. For another example, when the guide wheel 8 is rotatably disposed, the guide wheel 8 includes two wheels that can be rotated independently, the two wheels are coaxially connected, and a groove is formed in each of the wheels. The wheel body can rotate along with the pulling of the traction wire 6. By providing the guide wheels 8, the stretching direction of the traction wire 6 is approximately parallel to the length direction of the slide rail 2, and the start slide rail 2 is also pulled more easily. In addition, after the guiding is provided, the driving wheel assembly 4 can be arranged at other positions of the shell 1, and is not necessarily arranged in the extending line direction of the sliding rail 2. Thereby improving the rationality of the arrangement of the drive wheel assembly 4 and enabling the endoscope handle to be provided with a smaller and more compact size.

Referring to fig. 2, 8, 9, 11 and 12, in one embodiment of the present application, the endoscope handle further includes a guide plate 12, the guide plate 12 is disposed on one side of the end of the sliding rail, a guide hole 121 (shown in fig. 9) is disposed on the guide plate 12, and the traction wire 6 passes through the guide hole 121 and is connected to the driving wheel. Specifically, the guide plate 12 is located between the driving wheel assembly 4 and the sliding rail 2, and the traction wire 6 is connected with the driving wheel assembly 4 and the start sliding block 3 on the sliding rail 2 after traversing the guide plate 12. At least two guide holes 121 are formed in the guide plate 12, and the diameter of the guide holes 121 is slightly larger than that of the traction wires 6. The guide holes 121 traverse the guide plate 12 at an angle. So that the traction wire 6 on the side of the drive wheel assembly 4 coincides with a tangential line of the drive wheel and the traction wire 6 on the side of the slide rail 2 is substantially parallel to the length direction of the slide rail 2.

Referring to fig. 10, 11 and 12, in one embodiment of the present application, besides guiding the traction wire 6 through the guiding wheel 8 and the guiding plate 12, a wheel cover 9 may be disposed outside the driving wheel, a through hole 91 is disposed on the wheel cover 9, and the traction wire 6 is connected to the driving wheel along the tangential direction of the driving wheel after passing through the through hole 91. The wheel cover 9 can be a semi-arc cover plate or a hollow annular cover plate. The driving wheel assembly 4 is accommodated in the wheel cover 9, a through hole 91 is formed in one side, close to the sliding rail 2, of the wheel cover 9, and the diameter of the through hole 91 is slightly larger than that of the traction wire 6. The axis of the through hole 91 is at an angle to the length axis of the slide rail 2, and the axis of the through hole 91 substantially coincides with one tangential direction of the drive wheel.

In a specific embodiment, referring to fig. 12, in addition to the guiding of the traction wire 6 by using the wheel cover 9 alone, the wheel cover 9 and the guiding plate 12 are also arranged at the same time, so that better guiding effect is provided for the traction wire 6. Specifically, after the guide plate 12 guides the traction wire 6 for the first time, the wheel cover 9 may guide the traction wire 6 for the second time. Therefore, the angle of the traction wire 6 meets the use requirement, namely, the traction wire 6 near one side of the sliding rail 2 is approximately parallel to the length direction of the sliding rail 2, and the traction wire 6 near one side of the driving wheel assembly 4 is tangent to the driving wheel.

Because the endoscope handle is in butt joint with the consumable mechanism, the endoscope handle is located one side of the consumable mechanism. So that the first coupling portion 311 and the second coupling portion 321 can smoothly transmit the driving force to the consumable mechanism. Referring to fig. 2, 3, 5, 8 and 12, in an embodiment of the present application, the extending direction of the ends of the first coupling portion 311 on the first starting slider 31 and the second coupling portion 321 on the second starting slider 32 is the same, and the extending direction extends outwards from the housing 1. When the consumable mechanism is docked with the endoscope handle, portions of the first coupling portion 311 and the second coupling portion 321 will extend into the consumable mechanism. In a specific embodiment, the second coupling portion 321 has a U-shaped structure, and the sliding rail 2 is disposed in a groove of the U-shaped structure of the second coupling portion 321. The first coupling portions 311 are located between the U-shaped second coupling portions 321, and the second coupling portions 321 extend outwardly a distance greater than the distance the second coupling portions 321 extend outwardly. The second coupling portion 321 has a structure with a thick bottom and a thin top.

In order to meet the better holding and handling of the user, referring to fig. 15 to 23, in an embodiment provided by the present application, the housing 1 includes a holding portion 11, the holding portion 11 is located at one side of the operation portion 5, and the extending direction of the holding portion 11 is in the same direction as the axis of the slide rail 2. For example, referring to fig. 15, the housing 1 of the endoscope handle has a U-shaped structure, and a user grasps the grip 11 and then manipulates the operation portion 5 in different directions by pulling down or pushing up the thumb. For another example, fig. 18 shows the endoscope handle housing 1 in a laminated shape, and the grip 11 and the housing 15 having the housing chamber of the drive wheel assembly 4 are positioned on one side of the housing 1 main body. The user can grasp the grip portion 11 and then pull down or push up the operation portion 5 by the thumb. Also for example, in fig. 21, a grip 11 is formed on the main body of the housing 1, a housing 15 having a housing chamber of the driving wheel assembly 4 is located at one side of the main body of the housing 1, and an operation portion 5 is located at a side of the housing 15 having a housing chamber of the driving wheel assembly 4. Also, the user can grasp the grip portion 11 and then pull down or push up the operation portion 5 by the thumb.

During use, the endoscope system is typically required to bend and straighten the head end of the interventional catheter 10. In order to provide sufficient restoring force, in one embodiment of the present application, the endoscope handle further comprises a restoring member (not shown in the drawings), one end of which is connected to the start slide 3, and the other end of which is connected to the slide rail 2 or the housing 1 for providing restoring force to the start slide 3. Reset members include, but are not limited to: springs, elastic ropes, elastic blocks, etc.

In one embodiment of the present application, there is also provided an endoscope system including: the endoscope handle, the electric driving mechanism and the consumable mechanism are described above. The electric drive mechanism is provided with an electric drive section. The consumable mechanism can be detachably connected with the endoscope handle and the electric driving mechanism respectively, the consumable mechanism is provided with a follow-up part, and the follow-up part can be connected with the coupling part and the electric driving part respectively so as to drive the bending wire of the consumable mechanism to carry out winding and unwinding movements. The electric driving mechanism can be a mechanical arm or an electric endoscope operation handle.

In the clinical use process, the endoscope handle or the electric driving mechanism can be selectively docked with the consumable mechanism, so that the manual operation endoscope or the electric operation endoscope is realized. For example, it is sometimes necessary to rapidly process the proximal position of the body lumen, or even repeatedly enter and exit the body lumen, before the tip of the interventional catheter 10 reaches the distal target position of the body lumen. Therefore, the endoscope handle can be in butt joint with the consumable mechanism, and a user can manually operate the endoscope to rapidly process the proximal end position of the human body cavity. After the treatment is completed, the endoscope handle is separated from the consumable mechanism, and then the consumable mechanism is in butt joint with the electric driving mechanism. The interventional catheter 10 will then be controlled by the motorized drive mechanism to reach the distal target location of the body lumen.

There is also provided in one embodiment of the present application a method of operating an endoscope system, the method of operating an endoscope system being applicable to the above-described endoscope system, the method of operating an endoscope system including the steps of:

s101, connecting an endoscope handle with a consumable mechanism.

S102, controlling an interventional catheter of a consumable material mechanism to enter a proximal end position of a human body cavity by using an endoscope handle.

S103, controlling the consumable mechanism through the endoscope handle to complete the operation task of the proximal end position.

S104, the endoscope handle is disassembled, and the electric driving mechanism is connected with the consumable mechanism.

S105, pushing the interventional catheter to a distal target position of a human body cavity through an electric driving mechanism.

In the above steps, in order to facilitate connection between the endoscope handle or the electric driving mechanism and the consumable mechanism, the endoscope handle and the electric driving mechanism are provided with a first clamping part 101, and the consumable mechanism is provided with a second clamping part. The first clamping portion 101 and the second clamping portion may be mutually matched and clamped. The first clamping part 101 on the endoscope handle is arranged on the opposite side of the holding part 11, and after the endoscope handle is in butt joint with the consumable mechanism, the consumable mechanism does not obstruct the comfortable holding of the holding part 11 by a user.

The main function of the endoscope handle is to provide pulling force for the bending control wire on the consumable mechanism, and the follow-up part on the consumable mechanism can also adopt a design similar to the start sliding block 3. That is, after the endoscope handle is docked with the consumable mechanism, the first coupling portion 311 and the second coupling portion 321 are respectively connected with the first follow-up portion and the second follow-up portion on the consumable mechanism. When the first coupling portion 311 and the second coupling portion 321 slide, the first follower portion and the second follower portion slide together, so that the bending wire winding and unwinding operation is driven. In addition, the follower can be directly connected to the ends of different groups of bending control wires, and the first coupling part 311 and the second coupling part 321 directly pull the first follower and the second follower to act in the sliding process and drive the bending control wires to retract and release.

In summary, in the technical scheme provided by the embodiment of the application, two opposite rails are arranged on the sliding rail, the start sliding block is arranged on the rails, and different coupling parts on the two start sliding blocks are respectively used for driving two groups of bending control wires on the consumable mechanism. Not only has simplified the structure of endoscope handle, still the person of facilitating the use installs the endoscope handle on the consumable mechanism of electric drive mode to realize the switching to the electric drive of consumable mechanism and manual drive mode, can satisfy the demand of more service scenarios. In addition, the operating part is arranged on one side of the holding part, which is convenient for a user to hold the endoscope handle and also convenient for the user to pull down or push up the operating part.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (12)

1. An endoscope handle, comprising:

a housing;

the sliding rail is arranged in the accommodating cavity of the shell;

the two starting slide blocks are arranged on the slide rail, the starting slide blocks are provided with coupling parts, and the coupling parts are used for driving bending control wires of the consumable mechanism to perform retraction movement;

the driving wheel assembly is arranged in the shell, a traction wire is arranged on the driving wheel assembly, one end of the traction wire is connected to the starting slide block, and the other end of the traction wire is connected to the driving wheel assembly and used for driving the starting slide block to slide;

the operation part is connected with the driving wheel assembly and is used for driving the driving wheel assembly to rotate;

the sliding rail comprises two rails which are oppositely arranged, the first starting sliding block is arranged on the first rail, and the second starting sliding block is arranged on the second rail.

2. The endoscope handle of claim 1, wherein the drive wheel assembly comprises a first drive wheel and a second drive wheel;

the first driving wheel and the second driving wheel are respectively connected with different traction wires, so that when the first driving wheel and the second driving wheel rotate, the traction wires can drive different starting sliding blocks to slide.

3. The endoscope handle of claim 2, wherein the drive wheel assembly further comprises a crank;

the crank is coaxially connected with the first driving wheel, the second driving wheel and the operating part;

the operation part is operated in different directions, and the first driving wheel or the second driving wheel can be driven to rotate through the crank.

4. An endoscope handle according to claim 3 and wherein said first drive wheel and said second drive wheel are each provided with a first connection portion and said crank is provided with a second connection portion;

when the crank rotates in different directions, the second connecting part is connected with the first connecting part on the first driving wheel or the second driving wheel so as to drive the first driving wheel or the second driving wheel to rotate.

5. The endoscope handle of claim 4, wherein the first connection portion is an arcuate slot and the second connection portion is a male bar;

the extending directions of the arc-shaped slotted holes on the first driving wheel and the second driving wheel are opposite.

6. The endoscope handle of any of claims 1-5, further comprising a guide wheel;

the guide wheel is provided with a groove, and the traction wire is arranged in the groove.

7. The endoscope handle of any of claims 1-5, further comprising a guide plate;

the guide plate is arranged on one side of the tail end of the sliding rail, a guide hole is formed in the guide plate, and the traction wire penetrates through the guide hole and then is connected with the driving wheel.

8. The endoscope handle according to claim 7, wherein a wheel cover is provided outside the driving wheel, a through hole is provided in the wheel cover, and the traction wire is connected to the driving wheel in a tangential direction of the driving wheel after passing through the through hole.

9. The endoscope handle of claim 2, wherein a first coupling portion on the first start slide is identical to a second coupling portion on the second start slide at a distal end thereof extending in a direction;

the second coupling part is of a U-shaped structure, and the sliding rail is arranged in a groove of the U-shaped structure of the second coupling part.

10. The endoscope handle of claim 1, wherein the housing comprises a grip portion;

the holding part is positioned at one side of the operation part, and the extending direction of the holding part is in the same direction as the axis of the sliding rail.

11. The endoscope handle of claim 1, further comprising a reset member;

one end of the reset piece is connected with the starting slide block, and the other end of the reset piece is connected with the sliding rail or the shell and used for providing restoring force for the starting slide block.

12. An endoscope system, comprising:

an endoscope handle as described in any of claims 1 to 11;

an electric driving mechanism provided with an electric driving part;

the consumable mechanism can be detachably connected with the endoscope handle and the electric driving mechanism respectively, a follow-up part is arranged on the consumable mechanism, and the follow-up part can be connected with the coupling part and the electric driving part respectively so as to drive the bending control wire of the consumable mechanism to carry out winding and unwinding movements.