Gynecological vaginal speculum

Abstract

The utility model relates to the technical field of gynecological medical instruments, concretely is a gynecological vaginal speculum, include: upper blade and its upper integrated leaf arm, lower blade, the upper blade is hinged in the one end of lower blade through leaf arm, when the upper blade unfolds the duck mouth under the handle operation, the upper blade and lower blade form the working channel between, the gear box is slidably installed to the leaf back surface of upper blade, the inner wall rotation swing arm of gear box, the swing arm is assembled with visual sensor, the visual sensor is located on the axis L of working channel, the sliding direction of gear box is parallel to the axis L of working channel, gear box designs the control structure of drive swing arm rotation, the utility model realizes controllable visual collection, and provides the light environment for working channel, that is, can gather the information in working channel, also does not interfere with the operation of staff.

Description

Technical Field

[0001] This utility model relates to the technical field of gynecological medical devices, specifically a gynecological vaginal speculum. Background Technology

[0002] A vaginal speculum is a commonly used medical device in gynecological examinations. It is mainly used to dilate the vagina and expose the cervix and vaginal wall so that doctors can observe, take samples or perform treatments. Its main structure includes a double-leaf design and a locking device. The double-leaf usually consists of two openable blades (duckbill type). The opening angle of the blades is controlled by a handle. Some speculum have knobs or buckles to fix the open state and free the doctor's hands.

[0003] In the current technology, the double-lobed channel is quite difficult for doctors to operate and explore. It requires careful operation to gradually determine the cause and lesion. Prolonged vaginal dilation can cause physical and psychological discomfort to patients. Utility Model Content

[0004] This invention provides a gynecological vaginal speculum that enables controllable visual acquisition and provides a light environment for the working channel. It can collect information within the working channel without interfering with the operator's operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gynecological vaginal speculum, comprising:

[0007] The upper blade and its integrally formed blade arm; the lower blade, wherein the upper blade is hinged to one end of the lower blade via the blade arm; when the upper blade unfolds its beak under the operation of the handle, a working channel is formed between the upper blade and the lower blade; a gearbox is embedded and slidably mounted on the back of the upper blade, and a rotating arm is mounted on the inner wall of the gearbox, wherein a vision sensor is mounted on the rotating arm, and the vision sensor is located on the axis L of the working channel; the sliding direction of the gearbox is parallel to the axis L of the working channel; the gearbox is designed with a control structure to drive the rotating arm to rotate.

[0008] Optionally, the control structure includes a rotating shaft rotatably mounted inside the gearbox, a swing arm fixedly mounted on the outer wall of the rotating shaft, a gear fixedly mounted on the outer wall of the rotating shaft, a rack slidably mounted on the inner top of the gearbox, the rack meshing with the gear, and a probe fixedly mounted on the bottom end of the rack, the probe slidingly through the gearbox and the upper blade in sequence.

[0009] Optionally, the inner wall of the gearbox is fitted with a magnetic sheet, and one end of the rack is magnetically designed. When the rack slides outward to a preset position, it can form a locking state with the magnetic sheet through magnetic attraction. When the swing arm rotates to be perpendicular to the axis L, the rack slides to the preset position. A torsion spring is fixedly installed between the side wall of the gear and the inner wall of the gearbox. The torsion spring is sleeved on the outer wall of the rotating shaft. The elastic potential energy of the torsion spring after torsion is insufficient to break the locking state of magnetic attraction.

[0010] Optionally, a guide groove is provided on the back surface of the upper blade, and an assembly block is slidably installed inside the guide groove. An assembly rod is rotatably installed on the back surface of the upper blade. The assembly rod is located inside the guide groove and one end protrudes from the upper blade. The outer wall of the assembly rod located inside the guide groove is a threaded section. The assembly block is threadedly assembled to the threaded section of the assembly rod. When the assembly rod rotates, it can control the assembly block to move along the axis L.

[0011] Optionally, the swing arm has a telescopic structure design, and the vision sensor is mounted on the telescopic end of the swing arm so that the vision sensor can be located on the axis L of the working channel.

[0012] Optionally, when the swing arm is parallel to the axis L, the control structure is completely hidden within the guide groove.

[0013] Optionally, the lower blade has multiple light guide holes inside, which extend out from the back of the lower blade. An optical fiber is installed inside the light guide hole, and the light rays guided by the optical fiber are inclined at an angle of 15°-30° with the axis L. The multiple light guide holes are arranged at equal intervals.

[0014] Optionally, the undersides of both the upper and lower blades are designed with an arc shape, and the edges of the undersides are rounded.

[0015] This invention provides a gynecological vaginal speculum, which has the following advantages compared to the prior art: the visual sensor can scan and collect the cross-section of the working channel and collect real-time video, which is convenient for staff to observe. As the gearbox moves outward, the visual sensor can collect video of the working channel from the inside out, which is convenient for multiple staff to judge at the same time and avoids excessively long dilation time caused by alternating examinations. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective;

[0018] Figure 3 In this utility model Figure 2 The right view;

[0019] Figure 4 This utility model is based on Figure 3 A schematic diagram of the structure viewed in section AA;

[0020] Figure 5 This is a schematic diagram of the assembly block and assembly rod structure in this utility model;

[0021] Figure 6 This is a diagram showing the fit between the control structure and the assembly block in this utility model.

[0022] Figure 7 This is a schematic diagram of the swing arm in the vertical state in this utility model.

[0023] In the diagram: 1. Upper blade; 2. Lower blade; 3. Blade arm; 4. Assembly block; 5. Gearbox; 6. Rack; 7. Gear; 8. Swing arm; 9. Magnetic sheet; 11. Optical fiber; 12. Probe; 13. Assembly rod; 14. Vision sensor; 15. Torsion spring; 16. Shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 7 This utility model provides a technical solution: a gynecological vaginal speculum, comprising:

[0026] The upper blade 1 and its integrally formed blade arm 3; the lower blade 2, the upper blade 1 is hinged to one end of the lower blade 2 through the blade arm 3; when the upper blade 1 unfolds its beak under the operation of the handle, a working channel is formed between the upper blade 1 and the lower blade 2; a gearbox 5 is embedded and slidably mounted on the back of the upper blade 1, the inner wall of the gearbox 5 rotates the swing arm 8, the swing arm 8 is equipped with a vision sensor 14, the vision sensor 14 is located on the axis L of the working channel; the sliding direction of the gearbox 5 is parallel to the axis L of the working channel; the gearbox 5 is designed with a control structure to drive the swing arm 8 to rotate.

[0027] In existing technologies, although a working channel is formed, doctors still face difficulties in operation and examination, mainly due to the limitations imposed by the working channel window. In this case, by designing a swing arm 8 and a visual sensor 14, when the visual sensor 14 is located on the working channel axis L, it can scan and collect the cross-section of the working channel to generate real-time video, facilitating observation by staff. As the gearbox 5 moves outward, the visual sensor 14 can collect video of the working channel from the inside out, simultaneously creating a work record. This record can be played back or paused by an external display device, allowing multiple staff to make simultaneous judgments and avoiding excessively long dilation times caused by alternating examinations. Compared to existing technologies, this approach enables more efficient judgment and examination of the vaginal condition.

[0028] The vision sensor 14 uses a more sensitive and miniaturized CMOS sensor.

[0029] The part of the leaf that contacts the vaginal wall or tissue is the ventral side of the leaf, while the other side is the abaxial side of the leaf.

[0030] In a preferred embodiment, the control structure includes a rotating shaft 16 rotatably mounted inside the gearbox 5, a swing arm 8 fixedly mounted on the outer wall of the rotating shaft 16, a gear 7 fixedly mounted on the outer wall of the rotating shaft 16, a rack 6 slidably mounted on the inner top of the gearbox 5, the rack 6 meshing with the gear 7, and a probe 12 fixedly mounted on the bottom end of the rack 6. The probe 12 slides through the gearbox 5 and the upper blade 1 in sequence. Please refer to [reference needed]. Figures 4 to 6 In this embodiment, the swing arm 8 is initially in a horizontal state. When the probe 12 is pulled outward, the probe 12 can drive the rack 6 to move outward, thereby using the meshing assembly to drive the gear 7 to rotate counterclockwise, so that the swing arm 8 is removed from the horizontal state. The swing arm 8 will rotate with the rotating shaft 16 so that the vision sensor 14 can be located on the axis L of the working channel, thereby better collecting information in the working channel. Secondly, the meshing assembly of the rack 6 and the gear 7 is simple and efficient, and the transmission efficiency can be easily upgraded and improved with the current manufacturing capabilities.

[0031] Based on the control structure embodiment, the inner wall of the gearbox 5 is fitted with a magnetic sheet 9, and one end of the rack 6 is magnetically designed. When the rack 6 slides outward to a preset position, it can magnetically attract the magnetic sheet 9 to form a locked state. When the swing arm 8 rotates to be perpendicular to the axis L, the rack 6 slides to the preset position. A torsion spring 15 is fixedly installed between the side wall of the gear 7 and the inner wall of the gearbox 5. The torsion spring 15 is sleeved on the outer wall of the rotating shaft 16. The elastic potential energy of the torsion spring 15 after torsion is insufficient to break the magnetic attraction locking state. Please refer to 4 and its detailed enlarged view. In this embodiment, the swing arm 8 is in a horizontal state in the initial state. When the rack 6 slides outward to the preset position, the rack 6 slides to the preset position. When the swing arm 8 moves to the preset position, it is in a vertical state. At this time, the visual sensor 14 can collect data more accurately. Secondly, the rack 6 will also be magnetically attracted to the magnetic plate 9, thereby locking the rotation of the swing arm 8 and preventing the swing arm 8 from shaking and affecting the video acquisition. After the acquisition is completed, the staff may enter the working channel by touch to make a contact judgment on the lesion and make a medical diagnosis in conjunction with the information collected by the video. At this time, it is necessary to manually push the probe 12 to apply force to the rack 6, so that the rack 6 can be released from the locked state, thereby resetting the swing arm 8 and clearing the working channel from obstructions.

[0032] Based on the control structure embodiment, a guide groove is provided on the back of the upper blade 1. An assembly block 4 is slidably installed inside the guide groove. An assembly rod 13 is rotatably installed on the back of the upper blade 1. The assembly rod 13 is located in the guide groove and one end protrudes from the upper blade 1. The outer wall of the assembly rod 13 located in the guide groove is a threaded section. The assembly block 4 is threadedly assembled to the threaded section of the assembly rod 13. When the assembly rod 13 rotates, it can control the assembly block 4 to move along the axis L.

[0033] Furthermore, when the swing arm 8 is parallel to the axis L, the control structure is completely hidden in the guide groove. Through miniaturization and structural design, structural components such as the gear 7 and the swing arm 8 can be hidden in the guide groove to avoid interfering with the smooth flow of the working channel and thus avoid interfering with the inspection of the staff. When visual acquisition is required, the swing arm 8 rotates out of the guide groove to enter the working channel for acquisition.

[0034] The swing arm 8 is a telescopic structure design. The vision sensor 14 is mounted on the telescopic end of the swing arm 8 so that the vision sensor 14 can be located on the axis L of the working channel. In order for the vision sensor 14 to acquire better data, it is best for the vision sensor 14 to be located on the axis L of the working channel. The swing arm 8 can be telescopically adjusted to adapt to different working channels to ensure the quality of vision acquisition.

[0035] Based on the above embodiments, the lower blade 2 is further provided with multiple light guide holes inside, which extend out of the back of the lower blade 2. An optical fiber 11 is installed in the light guide hole, and the light guided by the optical fiber 11 is inclined at an angle of 15°-30° with the axis L. The multiple light guide holes are arranged at equal intervals, and the light obliquely hits the tissue surface, reducing specular reflection and creating a better light environment for the visual sensor 14 to collect data, avoiding specular reflection caused by direct illumination from the central light source or coaxial light source.

[0036] Furthermore, the ventral surfaces of both the upper leaf 1 and the lower leaf 2 are designed with an arc shape, which better fits the vaginal wall tissue, and the edges of the ventral surfaces of the leaves are rounded to protect the vaginal wall tissue and provide a certain degree of slowing down the insertion.

[0037] By utilizing the aforementioned structures, controllable visual acquisition can be achieved, and a lighting environment can be provided for the work channel. This allows for the acquisition of information within the work channel without interfering with the operator's work.

[0038] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the specification and drawings can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gynecological speculum, characterized in that: include: Upper blade (1) and its integrally formed blade arm (3); The lower blade (2) is hinged to one end of the upper blade (1) via a blade arm (3); When the upper blade (1) unfolds the duckbill under the operation of the handle, a working channel is formed between the upper blade (1) and the lower blade (2); A gearbox (5) is embedded and slidably mounted on the back of the upper blade (1). A rotating arm (8) is mounted on the inner wall of the gearbox (5). A vision sensor (14) is mounted on the arm (8). The vision sensor (14) is located on the axis L of the working channel. The sliding direction of the gearbox (5) is parallel to the axis L of the working channel; The gearbox (5) is designed with a control structure to drive the swing arm (8) to rotate.

2. The gynecological speculum according to claim 1, characterized in that: The control structure includes a rotating shaft (16) rotatably installed inside the gearbox (5), a swing arm (8) fixedly installed on the outer wall of the rotating shaft (16), a gear (7) fixedly installed on the outer wall of the rotating shaft (16), a rack (6) slidably installed on the inner top of the gearbox (5), the rack (6) meshing with the gear (7), and a probe (12) fixedly installed at the bottom end of the rack (6), the probe (12) sliding through the gearbox (5) and the upper blade (1) in sequence.

3. The gynecological speculum according to claim 2, characterized in that: The inner wall of the gearbox (5) is fitted with a magnetic sheet (9). One end of the rack (6) is magnetically designed. When the rack (6) slides outward to a preset position, it can form a locking state with the magnetic sheet (9). When the swing arm (8) rotates to be perpendicular to the axis L, the rack (6) slides to the preset position. A torsion spring (15) is fixedly installed between the side wall of the gear (7) and the inner wall of the gearbox (5). The torsion spring (15) is sleeved on the outer wall of the rotating shaft (16). The elastic potential energy of the torsion spring (15) after torsion is insufficient to break the locking state of magnetic attraction.

4. The gynecological speculum according to claim 2, wherein: The upper blade (1) has a guide groove on its back surface. An assembly block (4) is slidably installed inside the guide groove. An assembly rod (13) is rotatably installed on the back surface of the upper blade (1). The assembly rod (13) is located inside the guide groove and one end protrudes from the upper blade (1). The outer wall of the assembly rod (13) located inside the guide groove is a threaded section. The assembly block (4) is threadedly assembled to the threaded section of the assembly rod (13). When the assembly rod (13) rotates, it can control the assembly block (4) to move along the axis L.

5. The gynecological speculum according to claim 2, wherein: The swing arm (8) is a telescopic structure design, and the vision sensor (14) is mounted on the telescopic end of the swing arm (8) so that the vision sensor (14) can be located on the axis L of the working channel.

6. The gynecological speculum according to claim 4, wherein: When the swing arm (8) is parallel to the axis L, the control structure is completely hidden in the guide groove.

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