Electronic hard mirror with bendable head

Abstract

The utility model discloses an electronic hard mirror with a bendable head, which is characterized in that a bending adjusting tube comprises a bending adjusting tube middle tube, and the bending adjusting tube middle tube comprises a bending adjustable part and a bending non-adjustable part; the image acquisition module is fixed in the cavity of the non-bending part; one end of the hard tube is connected to the handle, and the other end is connected to the bend adjusting tube; the image acquisition module comprises a camera module and a connecting line, and one end of the connecting line is connected to the camera module; the handle comprises a handle shell, a control key, a winder, a drawing wire, a bending adjusting motor and a control circuit board. According to the electronic hard lens, the view angle and the view range of the hard lens end can be adjusted, so that the clinical use scene of the electronic hard lens can be greatly improved, and the operation burden of medical staff is also relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely relates to a head can be curved electronic rigid mirror. BACKGROUND

[0002] With the development of minimally invasive surgical technology, endoscopes have been more and more widely used. Endoscopes are generally divided into rigid mirrors and flexible mirrors, the main difference between the two being that rigid mirrors cannot be bent, while flexible mirrors can be bent because of their relatively soft material, especially the head of the mirror, so the field of view that can be observed by the flexible mirror is also relatively wide. In clinical practice, in order to enable rigid mirrors to observe more areas, the operator can only deflect the rigid mirror as a whole, which places a heavy burden on the operator. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model aims to provide a head-bendable electronic rigid mirror, which can expand the clinical use scenarios of rigid mirrors, reduce the use burden of the operator, and solve the problem of limited field of view caused by the inability of rigid mirrors to bend.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A head-bendable electronic rigid mirror, comprising an image acquisition module, a bending-adjustable tube, a handle and a rigid tube;

[0006] The bending-adjustable tube comprises a bending-adjustable tube, which comprises an adjustable bending part and a non-adjustable bending part; the image acquisition module is fixed inside the cavity of the non-adjustable bending part;

[0007] The rigid tube comprises a stainless steel tube, one end of which is connected to the handle, and the other end is connected to the bending-adjustable tube;

[0008] The image acquisition module is arranged in the bending-adjustable tube and comprises a camera module and a connecting line, one end of the connecting line being connected to the camera module;

[0009] The handle comprises a handle shell, control buttons, a wire winder, a pull wire, a bending-adjustable motor and a control circuit board; the control buttons, the bending-adjustable motor and the control circuit board are all arranged in the handle shell, the control buttons and the bending-adjustable motor being connected to the control circuit board; the other end of the connecting line is connected to the control circuit board; one end of the transmission cable is connected to the control circuit board, and the other end is connected to the input interface of an external host computer; the output shaft of the bending-adjustable motor is drivingly connected to the wire winder and can drive the wire winder to rotate; one end of the pull wire is fixed to the front end of the adjustable bending part, and the other end is wound around the wire winder.

[0010] As a preferred solution, the bending pipe further comprises a bending pipe inner tube and a bending pipe outer tube, the bending pipe inner tube, the bending pipe middle tube and the bending pipe outer tube are sequentially sleeved from inside to outside, and the bending pipe inner tube and the bending pipe outer tube entirely cover the inner surface and the outer surface of the bending pipe middle tube; the rear ends of the bending pipe inner tube and the bending pipe outer tube extend rearward and cover the inner wall and the outer wall of the front end of the hard pipe, respectively.

[0011] Further, the rear end of the bending pipe middle tube and the front end of the hard pipe are welded together.

[0012] As a preferred solution, the control buttons are arranged on the outer surface of the handle shell, comprising an image control button and a bending control button, the image control button is used for inputting an image control signal for setting, adjusting and controlling the image acquisition module to the control circuit board, and the bending control button is used for inputting a bending control signal for controlling the forward rotation or the reverse rotation of the bending motor to the control circuit board, so as to control the tension or relaxation of the wire.

[0013] As a preferred solution, the bending motor adopts a motor with a self-locking function. As a preferred solution, the bending motor adopts a motor with a memory function.

[0014] As a preferred solution, the bending pipe middle tube is made of a stainless steel pipe or a nickel-titanium pipe and is formed by local cutting, the cutting area forms an adjustable bending part, and the non-cutting area is a non-adjustable bending part; on the cutting area, a plurality of discontinuous cutting hollows are formed along the length direction of the bending pipe middle tube by cutting, and each cutting hollow extends in the circumferential direction. As another preferred solution, the bending pipe middle tube is assembled by a stainless steel pipe or a nickel-titanium pipe and a snake bone, the stainless steel pipe or the nickel-titanium pipe is a non-adjustable bending part, and the snake bone is an adjustable bending part.

[0015] As a preferred solution, the wire is a stainless steel wire or a nickel-titanium wire.

[0016] As a preferred solution, when two or more wires are arranged, the connection points between each wire and the adjustable bending part are separated by 90°.

[0017] The electronic hard mirror mainly comprises a bending pipe, a hard pipe and a handle, the bending pipe is an execution part of the bending function, the handle is a control part of the bending function, and the hard pipe is an intermediate transition part, so that the angle adjustment of the hard lens end can be realized through the mutual cooperation of the three parts, the field of view angle and the field of view range of the hard lens end can be adjusted, the clinical use scene of the electronic hard mirror can be greatly improved, and the operation burden of medical staff is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the present disclosure. In the drawings:

[0019] Figure 1 It is an external schematic diagram of the electronic rigid mirror in the embodiment of the present application (bent tube is not bent);

[0020] Figure 2 It is an external schematic diagram of the electronic rigid mirror in the embodiment of the present application (bent tube is bent);

[0021] Figure 3 It is a sectional schematic diagram of the electronic rigid mirror in the embodiment of the present application;

[0022] Figure 4 It is a partial enlarged schematic diagram of Figure 3

[0023] Figure 5 It is a first kind of implementation schematic diagram of the tube in the bent tube in the embodiment of the present application;

[0024] Figure 6 It is a second kind of implementation schematic diagram of the tube in the bent tube in the embodiment of the present application;

[0025] Figure 7 It is a third kind of implementation schematic diagram of the tube in the bent tube in the embodiment of the present application;

[0026] Figure 8 It is a fourth kind of implementation schematic diagram of the tube in the bent tube in the embodiment of the present application;

[0027] Figure 9 It is an external schematic diagram of the handle in the embodiment of the present application;

[0028] Figure 10 It is an internal schematic diagram of the handle in the embodiment of the present application;

[0029] Figure 11 It is a first kind of connection schematic diagram of the wire drawing and the adjustable bending part in the embodiment of the present application;

[0030] Figure 12 It is a second kind of connection schematic diagram of the wire drawing and the adjustable bending part in the embodiment of the present application;

[0031] Figure 13 It is a third kind of connection schematic diagram of the wire drawing and the adjustable bending part in the embodiment of the present application. DETAILED DESCRIPTION

[0032] ​The utility model will be further described below with reference to the drawings. It should be noted that the embodiments are based on the technical solutions and provide detailed implementation modes and specific operation processes. However, the protection scope of the utility model is not limited to the embodiments.

[0033] The embodiment provides a head-bendable electronic rigid mirror, as shown in the drawings, which comprises an image acquisition module, a bending adjusting pipe 2, a handle 3, a rigid pipe 6, a wire 5 and a transmission cable 4. The image acquisition module, the bending adjusting pipe and the wire form a bending adjusting section. The handle and the transmission cable form a handle section. Figures 1-13

[0034] Figures 3-4 As shown in the drawings, the bending adjusting pipe 2 comprises a bending adjusting pipe inner pipe 22, a bending adjusting pipe middle pipe 21 and a bending adjusting pipe outer pipe 23. The bending adjusting pipe inner pipe 22, the bending adjusting pipe middle pipe 21 and the bending adjusting pipe outer pipe 23 are sequentially sleeved from inside to outside, and the bending adjusting pipe inner pipe 22 and the bending adjusting pipe outer pipe 23 cover the bending adjusting pipe middle pipe 22 from inside and outside. The rear ends of the bending adjusting pipe inner pipe 22 and the bending adjusting pipe outer pipe 23 extend backward and are wrapped around the inner wall and the outer wall of the front end of the rigid pipe respectively, thereby connecting the bending adjusting pipe and the rigid pipe. In order to improve the connection strength, the rear end of the bending adjusting pipe middle pipe 21 and the front end of the rigid pipe 6 can be welded together. Figures 5-8 As shown in the drawings, the bending adjusting pipe middle pipe 21 comprises an adjustable bending part 211 at the front part and a non-adjustable bending part 212 at the rear part. The image acquisition module is fixed inside the cavity of the non-adjustable bending part. One end of the wire is fixed at the front end of the adjustable bending part to pull the adjustable bending part to change the angle, and the other end is wound around the wire winder.

[0035] The rigid pipe 6 comprises a stainless steel pipe, one end of which is connected to the handle 3, and the other end of which is connected to the bending adjusting pipe 2.

[0036] The image acquisition module comprises a camera module 7 and a connecting line 8. One end of the connecting line 8 is connected to the camera module 7, which is used for transmitting control signals and power supply to the camera module 7. The camera module generally comprises an image acquisition system and an LED light source system, which can be a 2K, 4K or 3D module.

[0037] Figures 9-10 ​​​As shown, the handle 3 comprises a handle shell 31, control buttons, a bending motor 34 and a control circuit board 36; the control buttons, the bending motor 34 and the control circuit board 36 are all arranged in the handle shell 31, and the control buttons and the bending motor 34 are both connected with the control circuit board 36. The other end of the connecting line 8 is connected with the control circuit board 36. One end of the transmission cable 4 is connected with the control circuit board 36, and the other end is connected with the input interface of the external host computer, for transmitting the image signal collected by the image acquisition module to the external host computer for processing. The output shaft 37 of the bending motor 34 is drivingly connected with the winding device 35 and can drive the winding device 35 to rotate. The winding device can be open or closed, and the winding device can accommodate the wire drawn back during bending.

[0038] Specifically, the control buttons are arranged on the handle shell 31 and divided into image control buttons 32 and bending control buttons 33. The image control buttons 32 are used to input image control signals for setting, adjusting and controlling the image acquisition module to the control circuit board. The bending control buttons 33 are used to input bending control signals for controlling the bending motor to rotate forward or reverse, so as to control the wire to be tightened or loosened, so as to realize the bending function.

[0039] In this embodiment, the bending motor needs to be selected to have a self-locking function, such as a worm gear motor, so that the adjustable bending part can be locked at any angle position, and the complex wire length adjustment operation during assembly can be omitted.

[0040] More specifically, the bending motor can be selected to have a memory function, such as a stepping motor with phase memory function, so that the endoscope bending has a memory function, which is convenient for the user to adjust the desired bending angle in time, and can also preset the bending angle according to different clinical use scenarios.

[0041] As an embodiment, as shown in Figures 5-7 As shown, the bending tube middle tube 21 can be a stainless steel tube or a nickel-titanium tube cut locally, and the cutting area forms an adjustable bending part 211, and the uncut area is a non-adjustable bending part 212. Specifically, a plurality of discontinuous cutting hollows are formed on the cutting area along the length direction of the bending tube middle tube 21, and each cutting hollow extends circumferentially. As another embodiment, as shown in Figure 8 As shown, the bending tube middle tube 21 can also be a stainless steel tube or a nickel-titanium tube processed and assembled with a snake bone, and the stainless steel tube or the nickel-titanium tube is a non-adjustable bending part 212, and the snake bone is an adjustable bending part 211. The structure form of the bending tube middle tube needs to be determined according to the bending range requirement.

[0042] Specifically, the inner tube 22 of the bending tube can be made of a material with low friction coefficient such as PTFE, and the outer tube 23 of the bending tube can be made of a material with certain strength such as Pebax.

[0043] In the embodiment, the wire 5 can be a stainless steel wire or a nickel-titanium wire, but preferably a nickel-titanium wire with small elongation.

[0044] In the embodiment, as shown in Figure 11 , one wire 5 can control the bending of the adjustable bending part 211 in a single plane by 90°. As shown in Figure 12 , two wires 5 are arranged at 90° with the connection points of the adjustable bending part 211, so that the adjustable bending part can be bent by 90° in a 90° three-dimensional range. As shown in Figure 13 , if the adjustable bending part 211 is to be bent by 90° in a 360° three-dimensional range, four wires 5 need to be connected to the adjustable bending part 211 at positions separated by 90°. Figures 11-13 , (a) of each of the figures shows the distribution of the connection points of the adjustable bending part 211 and the wire 5, and (b) of each of the figures shows the bending angle that the adjustable bending part 211 can achieve.

[0045] In the embodiment, the inner tube of the bending tube can be heat set by a shape memory alloy such as nickel-titanium alloy. In the initial position, the bending tube can have a certain angle, so that only one wire can be used to bend the bending section by 180° in a single plane, and two wires can be used to bend the bending section by 90° in a 180° three-dimensional range.

[0046] It should be noted that the scheme of the embodiment can be applied to other types of soft mirrors.

[0047] For those skilled in the art, various corresponding changes and modifications can be made according to the above technical solutions and concepts, and all these changes and modifications should be included in the protection scope of the utility model claim.

Claims

1. An electronic hard mirror with a bendable head, characterized in that: The image acquisition module, the bending pipe, the handle, the hard pipe and the transmission cable are included. The bending pipe includes a bending pipe inner pipe, which includes an adjustable bending part and a non-adjustable bending part; the image acquisition module is fixed inside the cavity of the non-adjustable bending part. The hard pipe includes a stainless steel pipe, one end of which is connected to the handle and the other end is connected to the bending pipe. The image acquisition module includes a camera module and a connecting line, one end of the connecting line is connected to the camera module. The handle includes a handle shell, control buttons, a wire winder, a pull wire, a bending motor and a control circuit board; the control buttons, the bending motor and the control circuit board are arranged in the handle shell, the control buttons and the bending motor are connected to the control circuit board; the other end of the connecting line is connected to the control circuit board; one end of the transmission cable is connected to the control circuit board and the other end is connected to the input interface of an external host computer; the output shaft of the bending motor is drivingly connected to the wire winder and can drive the wire winder to rotate; one end of the pull wire is fixed to the front end of the adjustable bending part and the other end is wound around the wire winder.

2. The head-bendable electronic scope of claim 1, wherein, The bending pipe further includes a bending pipe inner pipe and a bending pipe outer pipe, the bending pipe inner pipe, the bending pipe middle pipe and the bending pipe outer pipe are sequentially sleeved from inside to outside, and the bending pipe inner pipe and the bending pipe outer pipe cover the inner surface and the outer surface of the bending pipe middle pipe; the rear ends of the bending pipe inner pipe and the bending pipe outer pipe extend backward and are wrapped around the inner wall and the outer wall of the front end of the hard pipe, respectively.

3. The flexible electronic endoscope head according to claim 1 or 2, wherein The rear end of the bending pipe middle pipe and the front end of the hard pipe are welded together.

4. The electronic hard mirror of claim 1, wherein, The control buttons are arranged on the outer surface of the handle shell and include image control buttons and bending control buttons; the image control buttons are used to input image control signals to the control circuit board to set, adjust and control the image acquisition module; the bending control buttons are used to input bending control signals to the control circuit board to control the bending motor to rotate forward or reverse and thus control the pull wire to be tightened or loosened.

5. The electronic hard mirror of claim 1, wherein, The bending motor is a motor with self-locking function.

6. The electronic hard mirror of claim 1, wherein, The bending motor is a motor with memory function.

7. The electronic hard mirror of claim 1, wherein, The bending pipe middle pipe is made of a stainless steel pipe or a nickel-titanium pipe by local cutting, the cutting area forms an adjustable bending part, and the non-cutting area is a non-adjustable bending part; a plurality of discontinuous cutting hollows are formed on the cutting area along the length direction of the bending pipe middle pipe.

8. The electronic hard mirror of claim 1, wherein, The bending pipe middle pipe is assembled by a stainless steel pipe or a nickel-titanium pipe and a snake bone, the stainless steel pipe or the nickel-titanium pipe is a non-adjustable bending part, and the snake bone is an adjustable bending part.

9. The electronic hard mirror of claim 1, wherein, The pull wire is a stainless steel wire or a nickel-titanium wire.

10. The electronic rigid scope of claim 1, wherein, When two or more pull wires are provided, the connection points between each pull wire and the adjustable bending part are separated by 90°.

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