Ultra-thin single-channel electronic hysteroscope with negative pressure function

Abstract

The invention discloses an ultra-fine single-channel electronic hysteroscope with negative pressure function, which includes a barrel, a handle is sleeved on the rear end of the barrel, the barrel is a single-channel straight tube, the outer diameter of the barrel is not more than 4mm; the wall thickness of the barrel is not more than 0.13mm; an image acquisition end is fixedly arranged at the front end of the barrel, and the image acquisition end seals the front end of the barrel; the outer diameter of the image acquisition end is not greater than the outer diameter of the barrel; a through hole for the entry and exit of uterine distention fluid is arranged on the outer wall of the barrel, and a three-way joint is arranged at the rear end of the barrel, and the three-way joint includes a first interface, a second interface and a third interface; a control switch is arranged on the three-way joint. The hysteroscope of the invention is suitable for performing uterine cavity examination on elderly women after menopause in hospital outpatient clinics, and it is easy to operate and has the advantages of fast examination speed, and has both the function of uterine distention and the function of negative pressure suction, which fully meets the examination needs of hospital outpatient clinics.

Description

Technical Field

[0001] The invention relates to gynecological medical instruments, in particular to an ultra-thin single-channel electronic hysteroscope with a negative pressure function. Background Art

[0002] The hysteroscope currently used in hospital outpatient clinics is suitable for uterine cavity examination of young or middle-aged adult women. The cervix of postmenopausal elderly women is atrophied and the uterine cavity is narrow. The hysteroscope currently used in hospital outpatient clinics cannot enter the uterine cavity of postmenopausal elderly women due to the large outer diameter of the cylinder at the front of the hysteroscope, resulting in the inability to use the hysteroscope for gynecological examinations in hospital outpatient clinics.

[0003] In addition, the existing visual abortion uterine cavity tissue suction system generally has a curved front end cylinder, which is usually double-cavity, with a large outer diameter of about 10 mm, made of plastic or metal, and with a wall thickness of greater than or equal to 0.25 mm. The device is used for abortion surgery for young or middle-aged people, but is limited to use in operating rooms.

[0004] Similar products appearing on the foreign market usually have a plastic tube at the front, which only has a liquid inlet channel but no liquid outlet channel, and is also unable to draw out the uterine cavity tissue.

[0005] Currently, there is no hysteroscope suitable for postmenopausal elderly women to perform uterine cavity examination in hospital outpatient clinics. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide an ultra-thin single-channel electronic hysteroscope with a negative pressure function.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] An ultra-thin single-channel electronic hysteroscope with negative pressure function comprises a barrel, a handle is sleeved on the rear end of the barrel, the barrel is a single-channel straight tube, the outer diameter of the barrel is not more than 4mm; the wall thickness of the barrel is not more than 0.13mm; an image acquisition end is fixedly arranged at the front end of the barrel, and the image acquisition end closes the front end of the barrel; a lens module and a light source module are embedded on the front end surface of the image acquisition end; the outer diameter of the image acquisition end is not greater than the outer diameter of the barrel; a through hole for the entry and exit of uterine distension fluid is arranged on the outer wall of the barrel, and a three-way joint is arranged at the rear end of the barrel, the three-way joint comprises a first interface connected to the barrel, a second interface for connecting to a uterine distension device, and a third interface for connecting to a negative pressure device; a control switch is arranged on the three-way joint for controlling the first interface to be connected only to the second interface or the first interface to be connected only to the third interface.

[0009] The image acquisition end is in the shape of a truncated cone, and the symmetry axis of the image acquisition end coincides with the symmetry axis of the cylinder; the rear end face of the image acquisition end is circular and fixedly connected to the front end of the cylinder, and the front end face of the image acquisition end is elliptical.

[0010] The lens module includes an optical lens and a photoelectric sensor connected in sequence. The photoelectric sensor is connected to a flexible circuit board. The flexible circuit board extends along the inner cavity of the cylinder. The flexible circuit board penetrates the cylinder and extends into the handle.

[0011] The light source module is an LED lamp, the number of the LED lamps is one or two, the LED lamps are arranged around the lens module, and the LED lamps are connected to the flexible circuit board.

[0012] The light source module includes an optical fiber and an LED lamp that provides a light source for the optical fiber. The front end of the optical fiber is arranged around the lens module, the optical fiber extends in the inner cavity of the cylinder to the rear end of the cylinder and passes through the cylinder, the rear end of the optical fiber is located in the handle, the LED lamp is arranged in the handle and outside the cylinder, and the LED lamp is connected to the flexible circuit board.

[0013] There are at least two optical fibers, the front end of which is distributed circumferentially around the lens module. The optical fiber is made of polymer material. A heat shrink tube is provided in the barrel, which is sleeved on the outside of all the optical fibers. The heat shrink tube extends into the handle along with the flexible circuit board.

[0014] The handle is provided with a circuit board interface, and the flexible circuit board is connected to the circuit board interface.

[0015] The through hole is close to the image acquisition end.

[0016] The material of the cylinder is stainless steel.

[0017] The third interface is equipped with a filter.

[0018] The beneficial effects of the present invention are as follows: the hysteroscope of the present invention is suitable for uterine cavity examination of postmenopausal elderly women in hospital outpatient clinics, and is easy to operate and has the advantage of fast examination speed. The hysteroscope of the present invention has the advantage of a small cylinder, has both the function of uterine expansion and the function of negative pressure suction, and fully meets the examination needs of hospital outpatient clinics. The hysteroscope of the present invention has a compact structure and low manufacturing cost, and can be used for single use or multiple times after disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of Example 1 of the present invention.

[0020] Figure 2 Schematic diagram of the internal structure of Example 1 of the present invention.

[0021] Figure 3 for Figure 2Enlarged schematic diagram of part A in the middle.

[0022] Figure 4 Schematic diagram of the structure of the image acquisition terminal of embodiment 1 of the present invention.

[0023] Figure 5 for Figure 4 Center B view.

[0024] Figure 6 Schematic diagram of the internal structure of Example 2 of the present invention.

[0025] Figure 7 This is a structural diagram of the image acquisition end of embodiment 2 of the present invention.

[0026] Figure 8 In the second embodiment of the present invention, when the LED lamp of the light source module is one Figure 7 Center C view.

[0027] Fig. 9 In the second embodiment of the present invention, when the number of LED lamps in the light source module is two Figure 7 Center C view. DETAILED DESCRIPTION

[0028] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0029] Example 1

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an ultra-thin single-channel electronic hysteroscope with negative pressure function comprises a barrel 10, and a handle 20 is sleeved on the rear end of the barrel 10.

[0031] A plurality of clamping blocks 22 for fixing the cylinder are arranged in the handle 20, and the clamping blocks are arranged on both sides of the cylinder respectively.

[0032] The cylinder 10 is a single-channel straight tube, the outer diameter of the cylinder is not greater than 4 mm, the wall thickness of the cylinder is not greater than 0.13 mm, and the material of the cylinder is stainless steel.

[0033] An image collection end 30 is fixedly disposed at the front end of the barrel 10, and the image collection end 30 closes the front end of the barrel 10. The outer diameter of the image collection end 30 is not greater than the outer diameter of the barrel.

[0034] A through hole 11 for the inflow and outflow of uterine distension fluid is provided on the outer wall of the cylinder 10. The through hole 11 is close to the image acquisition end 30.

[0035] A three-way connector 40 is provided at the rear end of the cylinder 10. The three-way connector 40 includes a first interface 41 connected to the cylinder 10, a second interface 42 for connecting to a uterine expansion device, and a third interface 43 for connecting to a negative pressure device.

[0036] The three-way connector 40 is provided with a control switch 44 for controlling the first interface to be connected only to the second interface or the first interface to be connected only to the third interface.

[0037] The third interface 43 is provided with a filter 45. The filter is screwed to the second interface, and the filter can also be connected to the second interface in other detachable ways. Uterine cavity tissue can be left on the filter, and after the filter is disassembled, the uterine cavity tissue can be subjected to medical examination.

[0038] The image acquisition end 30 is truncated cone-shaped, and the symmetry axis of the image acquisition end coincides with the symmetry axis of the barrel; the rear end face of the image acquisition end is circular and fixed to the front end of the barrel, and the front end face of the image acquisition end is elliptical.

[0039] A lens module 31 and a light source module are embedded on the front surface of the image acquisition end 30 .

[0040] The lens module 31 includes an optical lens 34 and a photoelectric sensor 35 connected in sequence. The photoelectric sensor is connected to a flexible circuit board 33. The flexible circuit board extends along the inner cavity of the cylinder. The flexible circuit board passes through the cylinder and extends into the handle.

[0041] A circuit board interface 21 is disposed on the handle 20 , and the flexible circuit board 33 is connected to the circuit board interface 21 .

[0042] The light source module includes an optical fiber 51 and an LED lamp 52 that provides a light source for the optical fiber. The front end of the optical fiber 51 is arranged around the lens module 31. The optical fiber extends in the inner cavity of the barrel to the rear end of the barrel and is passed through the barrel 10. The rear end of the optical fiber 51 is located in the handle 20. The LED lamp 52 is arranged in the handle and outside the barrel. The LED lamp 52 is connected to the flexible circuit board 33.

[0043] There are at least two optical fibers 51, and the front end of the optical fiber is distributed circumferentially around the lens module 31. The material of the optical fiber is a polymer material. A heat shrink tube 50 is provided in the barrel, and the heat shrink tube 50 is sleeved on the outside of all the optical fibers. The heat shrink tube extends into the handle along with the flexible circuit board.

[0044] The LED light in the handle provides the light source, and the optical fiber conducts the light to the outside of the image acquisition end. Since multiple optical fibers can be set on the image acquisition end, multiple "light source points" can be formed around the lens module, so that the light emitted by the image acquisition end is more uniform and the irradiation range is wider, so that the field of view of the lens can be better illuminated, which greatly improves the clarity of the image obtained by the electronic hysteroscope.

[0045] The present invention can be used to perform uterine cavity examination on postmenopausal elderly women in hospital outpatient clinics.

[0046] When used in hospital outpatient clinics, the image acquisition end and the cylinder enter the uterine cavity. The second interface of the three-way connector is connected to the uterine expansion device, and the third interface of the three-way connector is connected to the negative pressure device. The image display device adapted to the hysteroscope is connected to the circuit board interface on the handle.

[0047] Adjust the control switch on the three-way connector to connect the first interface of the three-way connector with the second interface. The uterine distension device pumps out the uterine distension fluid, which passes through the second interface of the three-way connector, the first interface of the three-way connector, the inner cavity of the cylinder, and the through hole on the cylinder in sequence, and then enters the uterine cavity.

[0048] The light source module at the image acquisition end provides light, and the lens module transmits the uterine cavity image to the image display device through the flexible circuit board. The doctor can examine the uterine cavity through the image display device.

[0049] After the inspection is completed, the control switch on the three-way connector is adjusted so that the first interface of the three-way connector is connected to the third interface. Before the control switch is adjusted, the uterine expansion device has been turned off.

[0050] The negative pressure device connected to the third interface of the three-way connector is activated to suck out the uterine distension fluid. The uterine distension fluid passes through the through hole on the cylinder, the inner cavity of the cylinder, the first interface of the three-way connector, and the third interface of the three-way connector in sequence, and is sucked out of the uterine cavity by the negative pressure device.

[0051] The uterine cavity tissue sucked out along with the uterine distension fluid is filtered by the filter and left on the filter. After the filter is removed, the uterine cavity tissue can be subjected to a medical examination.

[0052] The hysteroscope of the present invention is suitable for performing uterine cavity examination on postmenopausal elderly women in hospital outpatient clinics, and is easy to operate and has the advantages of fast examination speed.

[0053] The hysteroscope of the present invention has the advantage of a small barrel, and has both the function of dilating the uterus and the function of negative pressure suction, thus fully meeting the examination needs of hospital outpatient clinics.

[0054] The hysteroscope of the present invention has a compact structure and low manufacturing cost and can be used disposable.

[0055] The hysteroscope of the present invention fills the market gap in this field.

[0056] Example 2

[0057] like Figure 6 , Figure 7 , Figure 8 and Fig. 9The difference between this embodiment and embodiment 1 is only the light source module. Since the other components are the same as those in embodiment 1, they will not be described in detail here.

[0058] In this embodiment, the light source module is an LED lamp 32 , the number of the LED lamps is one or two, the LED lamps are arranged around the lens module, and the LED lamps are connected to the flexible circuit board.

[0059] like Figure 8 As shown, there is one LED lamp 32. Fig. 9 As shown, there are two LED lamps 32. Since the area of ​​the front end surface of the image acquisition end is limited, the size of the LED lamp when there are two LED lamps is much smaller than the size of the LED lamp when there is one LED lamp. When there are two LED lamps, the two LED lamps are respectively arranged on both sides of the lens module, so that better lighting can be obtained within the field of view of the lens, which is conducive to improving the clarity of the image obtained by the electronic hysteroscope.

[0060] The usage and beneficial effects of this embodiment are the same as those of Embodiment 1, and will not be described in detail here.

[0061] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An ultra-thin single-channel electronic hysteroscope with negative pressure function, comprising a barrel, a handle is sleeved on the rear end of the barrel, and is characterized in that: The cylinder is a single-channel straight tube, and the outer diameter of the cylinder is not more than 4mm; the wall thickness of the cylinder is not more than 0.13mm; an image acquisition end is fixedly arranged at the front end of the cylinder, and the image acquisition end closes the front end of the cylinder; a lens module and a light source module are embedded on the front end surface of the image acquisition end; the outer diameter of the image acquisition end is not greater than the outer diameter of the cylinder; a through hole for the entry and exit of uterine distension fluid is arranged on the outer wall of the cylinder, and a three-way joint is arranged at the rear end of the cylinder, and the three-way joint includes a first interface connected to the cylinder, a second interface for connecting to the uterine distension device, and a third interface for connecting to the negative pressure device; a control switch is arranged on the three-way joint for controlling the first interface to be connected only to the second interface or the first interface to be connected only to the third interface: the image acquisition end is a frustum The image acquisition end has a shape, and the symmetry axis of the image acquisition end coincides with the symmetry axis of the barrel; the rear end face of the image acquisition end is circular and fixedly connected to the front end of the barrel, and the front end face of the image acquisition end is elliptical; the lens module includes an optical lens and a photoelectric sensor connected in sequence, the photoelectric sensor is connected to a flexible circuit board, the flexible circuit board extends along the inner cavity of the barrel, the flexible circuit board is penetrated by the barrel and extends into the handle; the through hole is close to the image acquisition end; the material of the barrel is stainless steel; the third interface is provided with a filter; the light source module is an LED lamp, the number of LED lamps is one or two, the LED lamps are arranged around the lens module, and the LED lamps are connected to the flexible circuit board; the light source module includes an optical fiber and an LED lamp that provides a light source for the optical fiber, and the front end of the optical fiber is provided Around the lens module, the optical fiber extends from the inner cavity of the barrel to the rear end of the barrel and is penetrated in the barrel, the rear end of the optical fiber is located in the handle, the LED light is located in the handle and located outside the barrel, and the LED light is connected to the flexible circuit board; there are at least two optical fibers, the front end of the optical fiber is distributed circumferentially around the lens module, the material of the optical fiber is a polymer material, a heat shrink tube is provided in the barrel, the heat shrink tube is sleeved on the outside of all the optical fibers, and the heat shrink tube extends into the handle along with the flexible circuit board; a circuit board interface is provided on the handle, and the flexible circuit board is connected to the circuit board interface; when used in a hospital outpatient clinic, the image acquisition end and the barrel enter the uterine cavity; the second interface of the three-way joint is connected to the uterine expansion device, and the third interface of the three-way joint is connected to the negative pressure device; The image display device adapted to the hysteroscope is connected to the circuit board interface on the handle; the control switch on the three-way connector is adjusted to first connect the first interface of the three-way connector with the second interface; the uterine distension device pumps out uterine distension fluid, which passes through the second interface of the three-way connector, the first interface of the three-way connector, the inner cavity of the barrel, and the through hole on the barrel in sequence, and then enters the uterine cavity; the light source module at the image acquisition end provides light source, and the lens module transmits the uterine cavity image to the image display device through the flexible circuit board; after the inspection is completed, the control switch on the three-way connector is adjusted to connect the first interface of the three-way connector with the third interface; before the control switch is adjusted, the uterine distension device has been turned off; the negative pressure device connected to the third interface of the three-way connector is started to suck out the uterine distension fluid;The uterine distention fluid passes through the through hole on the cylinder, the inner cavity of the cylinder, the first interface of the three-way joint, and the third interface of the three-way joint in sequence, and is sucked out of the uterine cavity by the negative pressure device; the uterine cavity tissue sucked out along with the uterine distention fluid is filtered by the filter net and left on the filter net. ;

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