CN111803007A - Endoscope handle and endoscope - Google Patents

Abstract

The invention discloses an endoscope handle, which comprises a handle shell, wherein the handle shell comprises a fixing part and a holding part which are communicated with each other, the front end of the holding part is connected below the fixing part, the rear end of the holding part extends towards the rear of the fixing part, and the front end and the rear end of the fixing part are respectively provided with a front through hole and a rear through hole; and an endoscope comprising the aforementioned endoscope handle and a working channel provided in the endoscope handle; the working channel is arranged in the fixing part, is in a straight tube shape which is nearly horizontal, does not have a large-angle bending part, can be smoother when an instrument enters the working channel, and can reduce the difficulty in operation; and the straight tubular working channel can prevent the tip of the instrument from being pressed against the inner wall of the channel, so that the working channel is prevented from being damaged, the defective rate in use can be reduced, and the effect of improving the product quality is achieved.

Description

Endoscope handle and endoscope

technical field

The invention relates to the field of medical equipment, in particular to an endoscope handle and an endoscope.

Background technique

Endoscopes are widely used in the medical industry. In various operations, flexible ureteral endoscopes can enter the body through the channel to observe the lesion and can cooperate with surgical instruments to perform visual surgical treatment in the body. Clinical in vivo examination and visual surgical treatment require endoscopes with clear images to help doctors improve the accuracy of diagnosis.

At present, the working channel in the endoscope on the market is usually not horizontal, but has a bending angle. When the medical instrument is passed into the working channel, the instrument is easy to be pressed against the inner wall of the bending place, which is easy to damage the instrument or cause damage to the instrument. The working channel is punctured, so that the instrument or the endoscope becomes invalid, which increases the difficulty and time of the operation, and is not conducive to use.

SUMMARY OF THE INVENTION

In order to overcome at least one of the above-mentioned technical problems of the prior art, the present invention provides an endoscope handle and an endoscope with a small bending angle of the working channel, which facilitates the passage of instruments and reduces the defective product rate.

A first aspect provides an endoscope handle, comprising a handle housing, the handle housing comprising a fixing part and a gripping part communicated with each other, the front end of the gripping part is connected below the fixing part, the gripping part The rear end of the fixing part extends toward the rear of the fixing part, and the front and rear ends of the fixing part are respectively provided with a front through hole and a rear through hole.

The above-mentioned endoscope handle has at least the following beneficial effects: the holding part is designed obliquely behind the fixing part, the front through holes and the rear through holes on the fixing part are used to pass through the working channel, and the rear of the rear through hole is not blocked , which is convenient for manipulation and access of instruments to the working channel. The channel between the front through hole and the rear through hole is a straight channel, and there is no large-angle bending part. This straight-in structure can reduce the difficulty of operation and improve the efficiency.

In some embodiments of the above-mentioned endoscope handle, the gripping portion is arc-shaped, and the tail portion of the gripping portion is bent upward or downward. The arc-shaped design is ergonomic and more comfortable to hold.

In some embodiments of the above-mentioned endoscope handle, an accommodating channel passing through the fixing portion is formed between the front through hole and the rear through hole, and the included angle between the axis of the accommodating channel and the horizontal line is less than 10°, Make sure that the channel is roughly straight, and there are no large angled bends.

A second aspect further provides an endoscope, comprising the endoscope handle described in any one of the foregoing; a working channel, the front end of the working channel protruding from the front through hole of the fixing part, the working channel The rear end communicates with the rear through hole of the fixing part.

The above-mentioned endoscope has at least the following beneficial effects: the working channel is arranged in the fixed part, the working channel is a nearly horizontal straight tube, and there is no large-angle bending part, when the instrument enters the working channel, it can be more smoothly, and the operation time can be reduced. In addition, the straight tubular working channel can prevent the tip of the instrument from pressing against the inner wall of the channel, prevent the working channel from being damaged, reduce the defective product rate during use, and achieve the effect of improving product quality.

In some embodiments of the above-mentioned endoscope, a control mechanism is further provided in the handle housing, and the control mechanism includes a control cable for controlling the bending of the tip of the working channel and a control wheel, and the control wheel is arranged in the grip portion, One end of the control cable is fixed on the control wheel, and the other end is connected to the tip of the working channel. Twisting the control wheel can control the tip of the working channel to bend in the plane, adjust the bending angle of the tip of the working channel, and control the mechanism. The layout in the handle shell is reasonable, the volume and weight of the handle are reduced, and the manipulation is very convenient.

In some embodiments of the above endoscope, the working channel is wrapped with a sheath, the working channel and the sheath are both flexible tubular, and the rear end of the sheath is fixed in the fixing portion through the front through hole, The flexible working channel and sheath can easily enter the human body, and the sheath plays the role of protection and positioning.

In some embodiments of the above endoscope, the working channel is provided with a drain hole, the handle housing is provided with a drain channel, one end of the drain channel is connected to the drain hole, and the other end is connected from the drain hole. The rear end of the grip portion protrudes, and the drainage channel is arranged in the handle shell, which can reduce the volume of the fixed portion, make the structure of the handle shell more reasonable, and the drainage operation is more convenient.

In some embodiments of the above-mentioned endoscope, the fixing part is provided with a liquid inlet hole, the working channel is also connected with a liquid inlet channel, and the liquid inlet channel extends out of the handle housing through the liquid inlet hole, and is separately The liquid inlet channel is set beside the working channel, which can easily control the action of the liquid inlet and follow-up equipment at the same time.

In some embodiments of the above-mentioned endoscope, the end of the working channel is connected with a three-way valve, and the end of the three-way valve protrudes from the rear through hole of the fixed part, and the three-way valve can establish multiple channels, reducing the The processing difficulty of the working channel is reduced.

In some embodiments of the above-mentioned endoscope, a cable outlet is provided on the grip portion, and the cable outlet is located below the grip portion and can be separated from other channels, so as to prevent the cable from affecting the user's operation, and the layout is reasonable.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings that are used in the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present invention, but not all of the embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work:

1 is a schematic structural diagram of a preferred embodiment of an endoscope according to the present invention;

FIG. 2 is an internal schematic diagram of a preferred embodiment of the endoscope of the present invention.

Detailed ways

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

It should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

1 and 2, an endoscope handle includes a handle housing 1, the handle housing 1 includes a fixed part 2 and a holding part 3 that communicate with each other, and the front end of the holding part 3 is connected to the fixed part 2 Below, the rear end of the holding portion 3 extends toward the rear of the fixing portion 2 , and the front and rear ends of the fixing portion 2 are respectively provided with a front through hole 21 and a rear through hole 22 . The holding part 3 is designed to be obliquely behind the fixing part 2, the front through hole 21 and the rear through hole 22 on the fixing part 2 are used to pass through the working channel 4, and the rear through hole 22 is not blocked, which is convenient for manipulation and instrument entry. Working channel 4. The channel between the front through hole 21 and the rear through hole 22 is a straight channel without a large-angle bent portion. This straight-in structure can reduce the difficulty of operation.

The grip portion 3 is arc-shaped, and the tail portion of the grip portion 3 is bent upward or downward. In the embodiment of FIG. 1 , the tail portion of the grip portion 3 is bent upward, which conforms to the ergonomic design. It can better fit the shape of the hand, it is more comfortable to hold, and it is not easy to slide.

An accommodating channel passing through the fixing portion is formed between the front through hole 21 and the rear through hole 22, and the included angle between the axis of the accommodating channel and the horizontal line is less than 10°. In order to achieve the effect of reducing bending, it is necessary to It is ensured that the accommodating channel between the front through hole 21 and the rear through hole 22 is substantially horizontal.

An endoscope is also disclosed, comprising the endoscope handle according to any one of the preceding claims; a working channel 4, the front end of the working channel 4 protrudes from the front through hole 21 of the fixing part 2, The rear end of the working channel 4 communicates with the rear through hole 22 of the fixing portion 2 . The working channel 4 is arranged in the fixed part 2, and the working channel 4 is a nearly horizontal straight tube without a large-angle bending part. The working channel 4 can prevent the tip of the instrument from pressing against the inner wall of the channel, prevent the working channel 4 from being damaged, reduce the rate of defective products during use, and achieve the effect of improving product quality.

The handle housing 1 is also provided with a control mechanism, the control mechanism includes a control cable 5 for controlling the bending of the front end of the working channel 4 and a control wheel 6, the control wheel 6 is arranged in the holding part 3, the control One end of the cable 5 is fixed on the control wheel 6 , and the other end is connected to the front end of the working channel 4 . Part of the control wheel 6 is located outside the control part 3, which is convenient for the user to toggle the control wheel 6 with one hand. Toggle the control wheel 6 to control the apex of the working channel 4 to bend in a plane, and adjust the bending angle of the apex of the working channel 4. , the layout of the control mechanism in the handle housing 1 is reasonable, the volume and weight of the handle are reduced, and the manipulation is very convenient.

The working channel 4 is wrapped with a sheath 7, the working channel 4 and the sheath 7 are both flexible tubular, the rear end of the sheath 7 is fixed in the fixing part 2 through the front through hole 21, and the flexible tubular The working channel 4 and the sheath 7 have large bending angles to facilitate entry into the human body, and the sheath 7 can protect the working channel 4 and facilitate entry.

The working channel 4 is provided with a drainage hole 8 , and the handle housing 1 is provided with a drainage channel 9 , one end of the drainage channel 9 is connected with the drainage hole 8 , and the other end is connected from the grip portion 3 . The rear end extends out, and the position of the liquid discharge channel 9 does not interfere with the working channel 4, which can facilitate the manipulation of the instrument and the liquid discharge at the same time. The fixed part 2 is provided with a liquid inlet hole 10, and the working channel 4 is also connected with a liquid inlet channel 11. The liquid inlet channel 11 extends out of the handle housing 1 through the liquid inlet hole 10. The liquid inlet channel 11 They are arranged in the fixing part 21 and the holding part 3 respectively, so that the volume of the handle housing 1 and the sheath 7 can be reduced.

The end of the working channel 4 is connected with a three-way valve 11, and the end of the three-way valve 11 protrudes from the rear through hole 22 of the fixing part 2. In the preferred embodiment of the drawings, the three-way valve 11 is fixed at the At the end of the working channel 4, the liquid inlet hole 10 and the liquid discharge hole 8 are all through holes on the three-way valve 11. The three-way valve 11 plays the role of building multiple channels, which can save the liquid inlet channel 11, and can The processing difficulty of the working channel 4 is reduced, and the difficulty of assembling the working channel 4 and the handle housing 1 can also be reduced. The holding part 3 is provided with a cable outlet 12 to facilitate the connection of cables such as cables and optical cables to electrical equipment.

The above is a detailed description of the preferred embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, those skilled in the art will not violate the present invention. Various equivalent modifications or substitutions can be made under the premise of the spirit of the invention, and other embodiments that can be obtained belong to the protection scope of the present invention.

Claims (10)

1. An endoscope handle, characterized in that: comprising A handle housing (1), the handle housing (1) includes a fixed portion (2) and a grip portion (3) that communicate with each other, and the front end of the grip portion (3) is connected below the fixed portion (2), The rear end of the holding part (3) extends toward the rear of the fixing part (2), and the front and rear ends of the fixing part (2) are respectively provided with a front through hole (21) and a rear through hole (22). 2 . The endoscope handle according to claim 1 , wherein the grip portion ( 3 ) is arc-shaped, and the tail portion of the grip portion ( 3 ) is bent upward or downward. 3 . 3 . The endoscope handle according to claim 1 , characterized in that: an accommodating channel passing through the fixing part is formed between the front through hole ( 21 ) and the rear through hole ( 22 ), and the accommodating channel has The angle between the axis and the horizontal line is less than 10°. 4. An endoscope, characterized in that: comprising An endoscope handle according to any preceding claim; A working channel (4), the front end of the working channel (4) protrudes from the front through hole (21) of the fixing part (2), the rear end of the working channel (4) and the rear of the fixing part (2) The through holes (22) communicate with each other. 5 . The endoscope according to claim 4 , wherein a control mechanism is further provided in the handle housing ( 1 ), and the control mechanism comprises a control cable ( 5 ) that controls the bending of the tip end of the working channel ( 4 ). 6 . ) and a control wheel (6), the control wheel (6) is arranged in the holding part (3), one end of the control cable (5) is fixed on the control wheel (6), and the other end is connected to the working The tips of the channels (4) are connected. 6. The endoscope according to claim 4, characterized in that: the working channel (4) is wrapped with a sheath (7), and both the working channel (4) and the sheath (7) are flexible tubular , the rear end of the sheath (7) is fixed in the fixing part (2) through the front through hole (21). 7 . The endoscope according to claim 4 , characterized in that: the working channel ( 4 ) is provided with a drain hole ( 8 ), and the handle housing ( 1 ) is provided with a drain channel ( 9), one end of the drainage channel (9) is connected with the drainage hole (8), and the other end protrudes from the rear end of the holding part (3). 8 . The endoscope according to claim 4 , characterized in that: the fixing part ( 2 ) is provided with a liquid inlet hole ( 10 ), the working channel ( 4 ) is also connected with a liquid inlet channel, and the The liquid inlet channel extends out of the handle housing (1) through the liquid inlet hole (10). 9 . The endoscope according to claim 4 , wherein a three-way valve ( 11 ) is connected to the end of the working channel ( 4 ), and the end of the three-way valve ( 11 ) extends from the fixing part ( 2 ) to the end of the three-way valve ( 11 ). protruding from the rear through hole (22). 10. The endoscope according to claim 4, characterized in that: a cable outlet (12) is provided on the grip portion (3).

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