CN220557975U - Endoscope and optical and electrical amplification module thereof - Google Patents

Abstract

The utility model provides an endoscope with a doubling amplifying function and an optical and electrical amplifying module thereof, wherein the optical amplifying module and the electronic amplifying module are arranged at the inner side of the endoscope, and the control part controls the optical amplifying module and the electronic amplifying module to respectively optically amplify and electronically amplify imaging of the endoscope; the optical amplifying module comprises an optical lens and a connecting piece connected with the optical lens, the optical lens is arranged at the far end of the insertion part, the near end of the connecting piece is connected with the rotating piece, the far end of the connecting piece is connected with the optical lens, and the rotating piece rotates to drive the connecting piece to move between a first position and a second position; the electronic amplifying module comprises a sliding sheet and a circuit board, wherein the circuit board is used for processing endoscopic imaging, one of the sliding sheet and the circuit board is arranged on the handheld part, and the other of the sliding sheet and the circuit board is arranged on the rotating piece.

Description

Endoscope and optical and electrical amplification module thereof

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an endoscope.

Background

The endoscope is used for checking the human body, is limited by the imaging observation range of the endoscope, and is difficult to observe and capture fine lesions or early lesions, so that the endoscope with a zooming and amplifying function is a development trend for solving the problem. Magnification endoscopes of different magnification have appeared, but there is a limitation in the maximum magnification to ensure the definition of the observation image and the imaging effect. At maximum magnification, the size of the image may also be limited by the display when viewing the local area is desired.

Disclosure of Invention

In a first aspect, the present utility model provides an endoscope with a magnification function, the endoscope includes a handheld portion, a scope body and an insertion portion from a proximal end toward a distal end, the endoscope includes a control portion, an optical amplification module and an electrical amplification module, the optical amplification module and the electrical amplification module are disposed inside the endoscope, and the control portion controls the optical amplification module and the electrical amplification module to optically amplify and electrically amplify an image of the endoscope, respectively; the control part comprises a rotating piece which is rotatably connected to the handheld part; the optical amplifying module comprises an optical lens and a connecting piece connected with the optical lens, the optical lens is arranged at the far end of the insertion part, the near end of the connecting piece is connected with the rotating piece, the far end of the connecting piece is connected with the optical lens, and the rotating piece rotates to drive the connecting piece to move between a first position and a second position; the electrical amplification module comprises a sliding sheet and a circuit board, wherein one of the sliding sheet and the circuit board is arranged on the handheld part, the other one of the sliding sheet and the circuit board is arranged on the rotating piece, the circuit board is used for processing endoscope imaging, the sliding sheet is provided with a sliding sheet contact, the circuit board is provided with a conductive track, and the rotation of the rotating piece drives the sliding sheet contact to slide along the conductive track;

when the connecting piece is positioned at the first position, the lens is positioned at the initial position, and the sliding sheet contact is disconnected with the conductive track; when the connecting piece moves from the first position to the second position, the lens moves from the proximal end to the distal end to the maximum displacement position, and the sliding piece contact is close to the conductive track.

In some embodiments, the rotating member includes an operating portion connected to a rotating portion located outside the hand-held portion, and a rotating portion rotatably mounted inside the hand-held portion.

In some embodiments, the sliding sheet is fixed on the rotating part, the circuit board is arranged on the inner side of the handheld part, and the rotating part drives the sliding sheet to slide along the conductive track of the circuit board.

In some embodiments, the connecting piece comprises a connecting rod and a connecting rope connected with the connecting rod, a guide channel is defined in the lens body, the connecting rope is in sliding fit with the guide channel, the distal end of the connecting rope is connected with the lens, the proximal end of the connecting rod is connected with the rotating part, and the distal end of the connecting rod is connected with the proximal end of the connecting rope.

In some embodiments, a stop is formed in the lens body that cooperates with the connector to limit the maximum displacement of the connector.

In some embodiments, the rotating portion includes an upper rotating disc and a lower rotating disc that are fixedly connected, a connecting shaft is mounted in the handheld portion, the upper rotating disc and the lower rotating disc are rotatably mounted on the connecting shaft, the connecting rope longitudinally extends coaxially with the mirror body, one end of the connecting rod is connected to the edge between the upper rotating disc and the lower rotating disc, and the other end of the connecting rod is connected to the connecting rope.

In some embodiments, a positioning groove extending from the proximal end to the distal end is formed in the lens body, a stop collar is fixed in the positioning groove to form the guiding channel, a stop top is formed at the proximal end of the positioning groove, a stop block matched with the stop top to the stop is connected at the proximal end of the connecting rope, and the stop block is connected with the connecting rod

In some embodiments, the circuit board is formed with a conductive member, and the conductive member extends in an arc shape and is disposed concentrically with the rotating portion.

In a second aspect, the present utility model further provides an optical amplifying module as described above.

In a third aspect, the present utility model further provides an electrical amplifying module as described above.

Compared with the prior art, the utility model has the following beneficial effects:

1. the endoscope provided by the utility model breaks through the limitation of the existing image amplification, and combines the optical amplification module and the electrical amplification module, thereby being beneficial to the observation of local pictures.

2. According to the utility model, optical amplification is realized by controlling the moving distance between the connecting piece and the lens, electrical amplification is realized by controlling the moving stroke of the sliding vane contact, and the whole amplification process is designed by connecting the stroke of the connecting piece with the sliding vane contact, so that the conversion process of optical amplification and electrical amplification is natural and smooth, and the operation and observation are convenient.

Drawings

FIG. 1 is a schematic view of the internal structure of an endoscope provided by the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a schematic structural diagram of a slider and a conductive track according to the present utility model.

Detailed Description

In the description of the present utility model, it should be understood that the terms "upper," "lower," "inner," "outer," "near," "far," "axial," "counterclockwise," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 and 2, the endoscope includes a hand-held portion 1, a scope 2, and an insertion portion (not shown) from a proximal end toward a distal end, the insertion portion being used for entering a human body through a natural duct of the human body or through an incision formed by an operation; the front end of the insertion part is provided with a viewing mirror, and the bending section of the insertion part can bend according to the control of the hand-held part, so that the viewing direction of the viewing mirror is changed or the direction of the surgical instrument extending from the surgical instrument channel or the working channel is changed. Based on the prior art, the utility model provides an endoscope with a doubling amplifying function, which further comprises a control part, an optical amplifying module and an electrical amplifying module, wherein the optical amplifying module and the electrical amplifying module are arranged on the inner side of the endoscope, and the control part controls the optical amplifying module and the electrical amplifying module to respectively optically amplify and electrically amplify the imaging of the endoscope. The control part comprises a rotating member 3 rotatably connected to the hand-held part.

Thus, the endoscope provided by the embodiment breaks through the limitation of the prior image amplification, and combines the optical amplification module and the electrical amplification module, thereby being beneficial to the observation of local pictures

The optical amplifying module comprises an optical lens (not shown) and a connecting piece connected with the optical lens, the optical lens is arranged at the far end of the insertion part, the near end of the connecting piece 5 is connected with the rotating piece 3, the far end of the connecting piece is connected with the optical lens, the rotating piece 3 rotates to drive the connecting piece 5 to move between a first position and a second position, and at the moment, the focusing seat of the front optical lens is pulled by the connecting piece to realize zooming amplification.

Further, referring to fig. 3, the electrical amplifying module provided in this embodiment includes a slide 61 and a circuit board 62, wherein one of the slide 61 and the circuit board 62 is disposed on the hand-holding portion 1, and the other is disposed on the rotating member 3, the circuit board is used for processing endoscopic imaging, the slide has a slide contact 611, the circuit board has a conductive track 621, and the conductive track has a first end and a second end, and as such, the slide contact is driven to slide along the conductive track 621 from the first end toward the second end along with the rotation of the rotating member 3. In this embodiment, the resistance threshold values of the conductive track from the first end to the second end are adopted and set as image amplification signals with different multiples, the image multiple is gradually amplified by sliding the sliding sheet contact along the conductive track from the first end to the second end, and the amplifying process is pixel amplification.

In order to realize the effective connection of the optical amplification and the electrical amplification, the electrical amplification is in a disconnected state in the optical amplification process, and the optical amplification is not easy to play a role in the electrical amplification process, otherwise, the optical amplification and the electrical amplification process can be interfered, and the effective conversion of the optical amplification and the electrical amplification is difficult to realize. Based on this, when the connector 5 provided in this embodiment is located at the first position, the lens is located at the initial position and the sliding contact is disconnected from the conductive track, and when the connector is moved from the first position to the second position, the lens is moved from the proximal end toward the distal end to the maximum displacement (i.e. optical magnification to the maximum multiple), at this time, the sliding contact approaches the conductive track, and the conductive track is about to be entered, and the optical magnification is about to be completed, and the endoscope is about to enter the electrical magnification process; the whole amplifying process is designed by connecting the travel of the connecting piece with the contact of the sliding vane, and the conversion process of optical amplification and electrical amplification is natural and smooth, so that the operation and observation are convenient.

In the present embodiment, the rotating member 3 includes an operation portion 33 and a rotating portion, the operation portion being connected to the rotating portion, the operation portion 33 being located outside the hand-held portion 1, the rotating portion being rotatably mounted inside the hand-held portion so that the rotation of the rotating portion is achieved by manipulating an external operation portion; specifically, the rotating part comprises an upper rotating disc 31 and a lower rotating disc 32 which are fixedly connected, the connecting shaft 7 is installed in the handheld part 1, and the upper rotating disc 31 and the lower rotating disc 32 are rotatably installed on the connecting shaft 7.

To ensure that the movement of the lens is along the proximal to distal longitudinal direction, in some preferred embodiments the connector comprises a connecting rod 51 and a connecting cord 52 connected to the connecting rod, the lens body defines a guiding channel 500, the connecting cord 52 is in sliding engagement with the guiding channel 500, the distal end of the connecting cord 52 is connected to the lens, the proximal end of the connecting rod 51 is connected to the rotating part and the distal end thereof is connected to the proximal end of the connecting cord 52, the design of the guiding channel limits the sliding of the connector in the longitudinal direction only, ensuring that the lens stroke is stable.

Further, to ensure that the lens stops traveling to the maximum displacement, i.e., the maximum optical magnification, for the beginning of electrical magnification; the limiting part 81 is formed in the lens body, and the limiting part 81 is matched with the connecting piece to limit the maximum displacement of the connecting piece.

In this embodiment, a positioning groove 8 extending from a proximal end toward a distal end is formed in the lens body, a stop collar 500 is fixed in the positioning groove 8 to form the guiding channel, a stop top 81 is formed at the proximal end of the positioning groove, a stop block 521 matched with the stop top is connected to the proximal end of the connecting rope 52, and the stop block 521 is connected to the connecting rod 51, so that the rotating member 3 rotates counterclockwise, the connecting rod moves proximally, and when the stop block 521 at the proximal end of the connecting rope 52 reaches the stop top, the stop block is in stop fit with the stop top stop, the connecting rope cannot move further, that is, the connecting rope drives the lens to travel to the maximum displacement position, and the optical magnification is up to the maximum multiple. At this time, the rotating piece continues to rotate anticlockwise, and then the sliding piece contact slides along the conductive track to start the electric amplification process.

Optionally, the connecting rope 52 extends longitudinally and coaxially with the mirror body, one end of the connecting rod 51 is connected to the edge between the upper turntable and the lower turntable, the other end is connected to the connecting rope, and the connecting rod is of an inclined design.

In this embodiment, the sliding piece 61 is fixed on the lower turntable 32, the circuit board 62 is disposed inside the handheld portion 1, and the rotation of the rotating portion drives the sliding piece to slide along the conductive track of the circuit board; specifically, the circuit board 52 is formed with a conductive member 521 to form the conductive track, and the conductive member 521 is disposed concentrically with the rotating portion 3 and extends in an arc shape.

Specifically, the observation mirror at the front end of the insertion part is connected with the main circuit board, the circuit board 52 is connected with the main circuit board to obtain an image so as to electrically amplify the image, the conductive track 521 is arc-shaped, and the sliding sheet contact and the conductive track are made of conductive materials, such as carbon and metal; the lower disc drives the sliding vane to move, so that the sliding vane contact is contacted with the conductive track, and the arc shape of the conductive track is the movement track of the sliding vane contact.

The present embodiment provides an imaging amplification method based on the endoscope described above, the method including the steps of:

1) Adopting a plurality of resistance thresholds between the first end and the second end of the conductive track, setting the resistance thresholds as image amplification signals with different multiples, sliding the self-sliding sheet contact along the conductive track from the first end to the second end, gradually amplifying the image multiples, wherein the amplifying process is pixel amplification; illustratively, three resistance thresholds of the middle section and the rear section of the front section of the conductive track are sampled in advance and set as image magnification signals with different multiples, and the image magnification signals are magnified from front to back. The electrical amplification is pixel amplification;

2) The rotating piece is controlled to rotate anticlockwise, so that the connecting piece is driven to move from the far end to the near end, at the moment, the focusing seat of the optical lens is pulled by the connecting piece to realize zooming amplification, when the connecting piece reaches the maximum displacement, the optical amplification factor is maximum, at the moment, the sliding piece contact rotates to the position close to the conductive track, and the sliding piece enters the conductive track, namely, the optical amplification is finished, and the sliding piece enters the electrical amplification;

3) The rotating piece continuously rotates anticlockwise, the sliding sheet contact on the rotating piece contacts the conductive track and moves along the arc-shaped movement track of the sliding sheet contact, at the moment, the circuit board extracts the resistance threshold value of the contact, converts an electric signal into a digital signal, and transmits the digital signal to the camera system of the endoscope, so that the electric amplification of a camera picture is realized.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "particular embodiments," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described in this specification and the features of the various embodiments or examples may be combined and combined by persons skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The endoscope comprises a handheld part, a scope body and an insertion part from a proximal end to a distal end, and is characterized by comprising a control part, an optical amplification module and an electrical amplification module, wherein the optical amplification module and the electrical amplification module are arranged on the inner side of the endoscope, and the control part controls the optical amplification module and the electrical amplification module to respectively optically amplify and electronically amplify imaging of the endoscope; the control part comprises a rotating piece which is rotatably connected to the handheld part; the optical amplifying module comprises an optical lens and a connecting piece connected with the optical lens, the optical lens is arranged at the far end of the insertion part, the near end of the connecting piece is connected with the rotating piece, the far end of the connecting piece is connected with the optical lens, and the rotating piece rotates to drive the connecting piece to move between a first position and a second position; the electrical amplification module comprises a sliding sheet and a circuit board, wherein one of the sliding sheet and the circuit board is arranged on the handheld part, the other one of the sliding sheet and the circuit board is arranged on the rotating piece, the circuit board is used for processing endoscope imaging, the sliding sheet is provided with a sliding sheet contact, the circuit board is provided with a conductive track, and the rotation of the rotating piece drives the sliding sheet contact to slide along the conductive track;

when the connecting piece is positioned at the first position, the lens is positioned at the initial position, and the sliding sheet contact is disconnected with the conductive track; when the connecting piece moves from the first position to the second position, the lens moves from the proximal end to the distal end to the maximum displacement position, and the sliding piece contact is close to the conductive track.

2. The endoscope of claim 1, wherein the rotating member includes an operating portion and a rotating portion, the operating portion being connected to the rotating portion, the operating portion being located outside the hand-held portion, the rotating portion being rotatably mounted inside the hand-held portion.

3. The endoscope of claim 2, wherein the sliding piece is fixed on the rotating part, the circuit board is arranged on the inner side of the holding part, and the rotating part drives the sliding piece to slide along the conductive track of the circuit board.

4. The endoscope of claim 2, wherein the connector comprises a connector rod and a connector cord connected to the connector rod, the endoscope body defines a guide channel therein, the connector cord is slidably engaged with the guide channel, a distal end of the connector cord is connected to the lens, a proximal end of the connector rod is connected to the rotating portion and a distal end thereof is connected to a proximal end of the connector cord.

5. The endoscope of claim 2, wherein a stop is formed in the endoscope body, the stop cooperating with the connector to limit the maximum displacement of the connector.

6. The endoscope of claim 4, wherein the rotating portion comprises an upper turntable and a lower turntable which are fixedly connected, a connecting shaft is installed in the handheld portion, the upper turntable and the lower turntable are rotatably installed on the connecting shaft, the connecting rope longitudinally extends coaxially with the endoscope body, one end of the connecting rod is connected with the edge between the upper turntable and the lower turntable, and the other end of the connecting rod is connected with the connecting rope.

7. The endoscope of claim 4, wherein a positioning groove extending from a proximal end to a distal end is formed in the endoscope body, a stop collar is fixed in the positioning groove to form the guiding channel, a stop top is formed at the proximal end of the positioning groove, a stop block matched with the stop top to a stop is connected to the proximal end of the connecting rope, and the stop block is connected with the connecting rod.

8. The endoscope of claim 7, wherein the circuit board is formed with a conductive member, and wherein the conductive member is disposed concentrically with the rotating portion in an arcuate extension.

9. An optical amplifying module, wherein the optical amplifying module according to any one of claims 1 to 8 is used.

10. An electrical amplification module, characterized in that it employs the electrical amplification module according to any one of claims 1 to 8.