Rotary vaginal speculum

Abstract

The invention provides a rotary vaginal speculum, and belongs to the technical field of medical instruments, the rotary vaginal speculum comprises a vertical handle shell, the interior of the handle shell is sequentially divided into a first cavity, a second cavity and a third cavity from bottom to top, a rotating assembly is arranged in the handle shell, an expansion assembly is arranged at the upper end of the handle shell, a driving assembly is arranged on the outer side wall of the handle shell, and the driving assembly is arranged on the outer side wall of the handle shell. According to the rotary vaginal speculum, the problems that when a vaginal speculum of a traditional duckbilled pliers type opening and closing structure is used for expanding the vagina, discomfort is likely to be caused to a patient, and the comfort is reduced are solved, and through cooperation of an arc-shaped reed and a matched clamping groove plate, the vaginal speculum is not prone to being damaged, so that the vaginal speculum is more convenient to use. The problem that the opening degree of a traditional duckbilled pliers type vaginal speculum is not easy to control is solved, and therefore injury to a patient is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and in particular relates to a rotary speculum. Background Art

[0002] In current medical gynecological examinations, using vaginal dilators to open the vagina for examination and sampling is a very common examination method. The vaginal dilators currently available on the market are duckbill pliers-type opening and closing structures, which can be controlled by pinching the outside. The duckbill pliers-type opening and closing structure is simple in structure, but it is easy to cause discomfort to patients when using it to expand the vagina, resulting in reduced comfort, and because it is difficult to control the size of the opening, it may even cause harm to patients. At the same time, the cold instrument is easy to cause discomfort to users when used directly, and an external auxiliary light source is required for irradiation and examination, which causes inconvenience to medical staff when using it. Therefore, we need a rotating speculum to solve this problem. Summary of the invention

[0003] To achieve the above-mentioned purpose, the present invention provides a rotary speculum, including a vertical handle shell, the interior of the handle shell is divided into a first cavity, a second cavity and a third cavity from bottom to top by a partition, a rotating assembly is provided in the handle shell, an expansion assembly is provided at the upper end of the handle shell, and a driving assembly is provided on the outer side wall of the handle shell, and the driving assembly is connected to the expansion assembly through the rotating assembly.

[0004] Further, the rotating assembly includes a first double-layer gear and a second double-layer gear arranged vertically, the gear shafts of the first double-layer gear and the second double-layer gear are fixed in the first cavity, the large gear of the first double-layer gear is connected to the driving assembly, the small gear of the first double-layer gear is vertically meshed with the small gear of the second double-layer gear, the large gear of the second double-layer gear is a bevel gear, and the large gear of the second double-layer gear is horizontally meshed with a first bevel gear on the upper side, the upper side of the first bevel gear is fixedly connected with a vertical first connecting shaft, and the first connecting shaft is fixed at the connecting point between the first cavity and the second cavity;

[0005] The upper end of the first connecting shaft is fixedly connected with a horizontally arranged second bevel gear, the second bevel gear is fixed in the second cavity, the second cavity is opened on one side away from the driving assembly, and the second bevel gear is partially exposed outside the second cavity;

[0006] A hollow connecting rod is horizontally arranged in the third cavity, one end of the connecting rod is fixedly connected in the third cavity, the other end of the connecting rod passes out of the handle housing and is fixedly sleeved with a circular base, the portion of the connecting rod located between the base and the handle housing is rotatably sleeved with a gear ring, the teeth on the end face of the gear ring are bevel teeth, and the gear ring is meshed with the second bevel gear;

[0007] An annular fixed cover is fixedly connected to one end face of the base away from the gear ring, and a plurality of rotating gears are arranged on the other end face of the base with the connecting rod as the center circumference, the inner ring surface of the gear ring is provided with teeth, the inner ring surface of the gear ring is meshed with the rotating gear, and the expansion component is connected to the rotating gear.

[0008] Furthermore, the expansion assembly includes a plurality of horizontally arranged expansion rods, the positions of the plurality of expansion rods correspond one-to-one to the positions of the plurality of rotating gears, one end of the expansion rod passes through the base and is rotatably connected to the base, and the rotating gear is sleeved and fixedly connected on the corresponding expansion rod.

[0009] Furthermore, the number of the expansion rods is four.

[0010] Furthermore, the expansion rod is hollow and has a heating wire inside. A battery and a PCB board are provided in the first cavity below the first double-layer gear. The battery is electrically connected to the PCB board and the heating wire.

[0011] Furthermore, a plurality of lighting devices are fixedly connected to one end of the connecting rod close to the base, and the lighting devices are electrically connected to the battery and the PCB board.

[0012] Furthermore, the driving assembly includes a vertical rack, the rack is meshed with the large gear of the first double-layer gear, and a slider is fixedly connected to the side of the rack away from the first double-layer gear;

[0013] The handle housing is vertically provided with a rectangular hole matching the slider on one side of the slider, the slider is vertically slid in the rectangular hole, and a switch is fixedly connected to the side of the slider away from the rack, and the width of the switch and the rack are both greater than the width of the rectangular hole.

[0014] Furthermore, the rack is fixedly connected with springs on both sides along the length direction, and two slot plates matching the ends of the springs are vertically provided in the handle shell, and the two slot plates are fixed on both sides of the handle shell along the width direction of the rectangular hole.

[0015] Furthermore, a gear mark is provided on the outer side wall of the handle housing along the length direction of the rectangular hole.

[0016] Furthermore, the handle shell is composed of a first shell and a second shell symmetrically spliced ​​together.

[0017] The advantages of the present invention are as follows: the present invention provides a rotary speculum, which drives the slider, the rack, the first double-layer gear, the second double-layer gear and other components to rotate by pushing a switch by hand, so that the four expansion rods rotate with the rotating gears and gradually open synchronously, so as to achieve the purpose of expanding the vagina, reduce the pain of the patient, and make the patient feel more comfortable. The device slowly expands during use, and the gear mark is provided to adjust the graded gear, so that it is more convenient for medical workers to check and use it, and solves the problem that when using a traditional duckbill clamp type opening and closing structure of the speculum to expand the vagina, it is easy to cause discomfort to the patient, resulting in reduced comfort. The arc-shaped reed and the matching card slot plate are used to avoid the problem that the opening size of the traditional duckbill clamp type speculum is difficult to control, thereby preventing harm to the patient. At the same time, the lighting device is provided to provide a lighting function, and the heating wire is provided to heat the expansion rod, so as to avoid the discomfort caused by the cold instrument to the user when the expansion rod is used directly, and when an external auxiliary light source is needed for irradiation and inspection, it is more convenient for medical workers to use it.

[0018] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 It is an exploded view of the structure of the present invention.

[0021] Figure 3 It is the first schematic diagram of the internal structure of the present invention.

[0022] Figure 4 It is the second schematic diagram of the internal structure of the present invention.

[0023] Figure 5 It is the third schematic diagram of the internal structure of the present invention.

[0024] Figure 6 It is a schematic diagram of the internal structure of the handle housing of the present invention.

[0025] Figure 7 It is a schematic diagram of the internal structure of the expansion rod of the present invention.

[0026] Explanation of the accompanying drawings: 1. handle shell; 11. first shell; 12. second shell; 2. partition; 3. first cavity; 4. second cavity; 5. third cavity; 6. rotating assembly; 601. first double-layer gear; 602. second double-layer gear; 603. first bevel gear; 604. first connecting shaft; 605. second bevel gear; 606. connecting rod; 607. base; 608. gear ring; 609. fixing cover; 610. rotating gear; 7. expansion assembly; 71. expansion rod; 72. heating wire; 73. battery; 74. PCB board; 75. lighting device; 8. driving assembly; 81. rack; 82. slider; 83. rectangular hole; 84. switch; 85. spring; 86. card slot plate; 87. gear mark. DETAILED DESCRIPTION

[0027] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "aligned", "overlap", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0031] Example 1

[0032] This embodiment provides Figure 1 to Figure 7The rotary speculum shown comprises a vertical handle housing 1, the interior of the handle housing 1 is divided into a first cavity 3, a second cavity 4 and a third cavity 5 from bottom to top, and the handle housing 1 is composed of a first housing 11 and a second housing 12 symmetrically spliced ​​together;

[0033] A rotating assembly 6 is provided in the handle housing 1; the rotating assembly 6 comprises a first double-layer gear 601 and a second double-layer gear 602 which are arranged vertically, the gear shafts of the first double-layer gear 601 and the second double-layer gear 602 are fixed in the first cavity 3, the large gear of the first double-layer gear 601 is connected to the driving assembly 8, the small gear of the first double-layer gear 601 is vertically meshed with the small gear of the second double-layer gear 602, the large gear of the second double-layer gear 602 is a bevel gear, and the large gear of the second double-layer gear 602 is horizontally meshed with a first bevel gear 603 on the upper side, the upper side of the first bevel gear 603 is fixedly connected with a vertical first connecting shaft 604, and the first connecting shaft 604 is fixed at the connecting portion between the first cavity 3 and the second cavity 4;

[0034] The upper end of the first connecting shaft 604 is fixedly connected with a horizontally arranged second bevel gear 605, and the second bevel gear 605 is fixed in the second cavity 4. The second cavity 4 is opened on one side away from the driving assembly 8, and the second bevel gear 605 is partially exposed outside the second cavity 4, wherein the upper side of the second bevel gear 605 is fixedly connected with a second connecting shaft, and the second connecting shaft is fixed at the partition 2 between the second cavity 4 and the third cavity 5. The second connecting shaft has a limiting cover located in the third cavity 5, which is used to limit the second bevel gear 605;

[0035] A hollow connecting rod 606 is horizontally arranged in the third cavity 5, one end of the connecting rod 606 is fixedly connected in the third cavity 5, and the other end of the connecting rod 606 passes out of the handle housing 1 and is fixedly sleeved with a circular base 607, and the portion of the connecting rod 606 between the base 607 and the handle housing 1 is rotatably sleeved with a gear ring 608, the teeth on the end face of the gear ring 608 are bevel teeth, and the gear ring 608 is meshed with the second bevel gear 605;

[0036] An annular fixed cover 609 is fixedly connected to one end face of the base 607 away from the gear ring 608. A plurality of rotating gears 610 are arranged on the other end face of the base 607 with the connecting rod 606 as the central circumference. The inner ring face of the gear ring 608 is provided with teeth. The inner ring face of the gear ring 608 meshes with the rotating gear 610. The expansion assembly 7 is connected to the rotating gear 610.

[0037] An expansion assembly 7 is provided at the upper end of the handle housing 1, and the expansion assembly 7 includes a plurality of horizontally arranged expansion rods 71, and the positions of the plurality of expansion rods 71 ​​correspond to the positions of the plurality of rotating gears 610 one by one, and one end of the expansion rod 71 passes through the base 607 and is rotatably connected to the base 607, and the rotating gear 610 is sleeved on the corresponding expansion rod 71 and fixedly connected, wherein the number of the expansion rods 71 ​​is four, and the expansion rods 71 ​​are hollow and have a heating wire 72 inside, and a battery 73 and a PCB board 74 are provided below the first double-layer gear 601 in the first cavity 3, and the battery 73 is electrically connected to the PCB board 74 and the heating wire 72, and a plurality of lighting devices 75 are fixedly connected to one end of the connecting rod 606 near the base 607, and the lighting device 75 is electrically connected to the battery 73 and the PCB board 74;

[0038] A driving assembly 8 is provided on the outer wall of the handle housing 1. The driving assembly 8 is connected to the expansion assembly 7 through the rotating assembly 6. The driving assembly 8 includes a vertical rack 81, which is meshed with the large gear of the first double-layer gear 601. A slider 82 is fixedly connected to the side of the rack 81 away from the first double-layer gear 601.

[0039] A rectangular hole 83 matching the slider 82 is vertically opened on one side of the handle housing 1. The slider 82 slides vertically in the rectangular hole 83, and a switch 84 is fixedly connected to the side of the slider 82 away from the rack 81. The widths of the switch 84 and the rack 81 are both greater than the width of the rectangular hole 83.

[0040] Furthermore, the rack 81 is fixedly connected with springs 85 on both sides along the length direction, and two slot plates 86 matching the ends of the springs 85 are vertically arranged in the handle housing 1, and the two slot plates 86 are fixed on both sides of the handle housing 1 along the width direction of the rectangular hole 83, wherein a gear mark 87 is provided on the outer wall of the handle housing 1 along the length direction of the rectangular hole 83.

[0041] By cooperating with the spring sheet 85, the slot plate 86 and the gear mark 87, the expansion degree of the expansion rod 71 controlled by the switch 84 is divided into three gears, so that it can be adjusted according to the needs of different patients, thereby improving the comfort of the patients.

[0042] When in use, the installed speculum is first inspected and disinfected. After disinfection, the medical staff holds the handle shell 1 of the speculum with their hands, then puts the expansion rod 71 into the patient's examination site, and drives the slider 82 to move vertically in the rectangular hole 83 by pushing the switch 84 by hand. The slider 82 drives the rack 81 to move, and the rack 81 drives the first double-layer gear 601 to rotate by meshing with the first double-layer gear 601. Similarly, the first double-layer gear 601 drives the second double-layer gear 602 to rotate, and the second double-layer gear 602 drives the first bevel gear 603 to rotate, and the first bevel gear 603 drives the first connecting shaft 604 to rotate. Driven by the second bevel gear 605, the second bevel gear 605 drives the gear ring 608 to rotate by meshing with the bevel gear on the end face of the gear ring 608, and the gear ring 608 drives the four rotating gears 610 meshing with it through the teeth on its inner ring surface. The four rotating gears 610 drive the expansion rod 71 to move gradually outward synchronously, thereby achieving the effect of expanding and opening the patient's examination site. When the examination is completed, the medical staff pushes the switch 84 to move in the reverse direction by hand, thereby moving in the reverse direction in the above manner, thereby gradually shrinking the expansion rod 71, and finally taking the expansion rod 71 out of the patient's examination site to complete the examination.

[0043] The present invention provides a rotary speculum, which drives the slider 82, the rack 81, the first double-layer gear 601, the second double-layer gear 602 and other components to rotate by pushing a switch 84 by hand, so that the four expansion rods 71 ​​rotate with the rotating gear 610 and gradually open synchronously, thereby achieving the purpose of expanding the vagina, reducing the pain of the patient, and making the patient feel more comfortable. In addition, the speculum is slowly expanded during use, and the gear mark 87 is provided to adjust the graded gear, so that it is more convenient for medical workers to check and use, and solves the problem of expanding the vagina when using a traditional duckbill clamp-type opening and closing structure speculum. When opening the vagina, it is easy to cause discomfort to the patient, resulting in a problem of reduced comfort, and the cooperation of the arc-shaped reed 85 and the matching card slot plate 86 avoids the problem of the traditional duckbill forceps speculum being difficult to control the opening size, thereby preventing harm to the patient. At the same time, the set lighting device 75 provides a lighting function, and the set heating wire 72 can heat the expansion rod 71, avoiding the expansion rod 71 When the cold instrument causes discomfort to the user when it is directly used, and when an external auxiliary light source is needed for illumination and inspection, it makes it more convenient for medical staff to use it.

[0044] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. A rotating vaginal speculum, characterized in that: The invention comprises a vertical handle shell (1), wherein the interior of the handle shell (1) is divided into a first cavity (3), a second cavity (4) and a third cavity (5) from bottom to top in sequence by a partition (2), a rotating assembly (6) is provided in the handle shell (1), an expansion assembly (7) is provided at the upper end of the handle shell (1), a driving assembly (8) is provided on the outer side wall of the handle shell (1), and the driving assembly (8) is connected to the expansion assembly (7) via the rotating assembly (6).

2. A rotary vaginal speculum as claimed in claim 1, characterized in that: The rotating assembly (6) comprises a first double-layer gear (601) and a second double-layer gear (602) which are arranged vertically. The gear shafts of the first double-layer gear (601) and the second double-layer gear (602) are both fixed in the first cavity (3). The large gear of the first double-layer gear (601) is connected to the driving assembly (8). The small gear of the first double-layer gear (601) is vertically meshed with the small gear of the second double-layer gear (602). The large gear of the second double-layer gear (602) is a bevel gear, and a first bevel gear (603) is horizontally meshed on the upper side of the large gear of the second double-layer gear (602). A vertical first connecting shaft (604) is fixedly connected to the upper side of the first bevel gear (603). The first connecting shaft (604) is fixed at the connecting point between the first cavity (3) and the second cavity (4). The upper end of the first connecting shaft (604) is fixedly connected to a horizontally arranged second bevel gear (605), the second bevel gear (605) is fixed in the second cavity (4), the second cavity (4) is opened on a side away from the driving assembly (8), and a portion of the second bevel gear (605) is exposed outside the second cavity (4); A hollow connecting rod (606) is horizontally arranged in the third cavity (5), one end of the connecting rod (606) is fixedly connected in the third cavity (5), and the other end of the connecting rod (606) is fixedly sleeved with a circular base (607) after passing through the handle housing (1) outwards, and the portion of the connecting rod (606) located between the base (607) and the handle housing (1) is rotatably sleeved with a gear ring (608), the teeth on the end surface of the gear ring (608) are bevel teeth, and the gear ring (608) is meshed with the second bevel gear (605); An annular fixed cover (609) is fixedly connected to one end face of the base (607) away from the gear ring (608); a plurality of rotating gears (610) are arranged on the other end face of the base (607) with the connecting rod (606) as the center circumference; the inner ring surface of the gear ring (608) is provided with teeth; the inner ring surface of the gear ring (608) is meshed with the rotating gear (610); and the expansion component (7) is connected to the rotating gear (610).

3. A rotary vaginal speculum as claimed in claim 2, characterized in that: The expansion assembly (7) comprises a plurality of horizontally arranged expansion rods (71), the positions of the plurality of expansion rods (71) corresponding one to one with the positions of the plurality of rotating gears (610), one end of the expansion rod (71) passes through the base (607) and is rotatably connected to the base (607), and the rotating gear (610) is sleeved on the corresponding expansion rod (71) and fixedly connected.

4. A rotary vaginal speculum as claimed in claim 3, characterized in that: The number of the expansion rods (71) is four.

5. A rotary vaginal speculum as claimed in claim 3, characterized in that: The expansion rod (71) is hollow and has a heating wire (72) inside. A battery (73) and a PCB board (74) are provided in the first cavity (3) below the first double-layer gear (601). The battery (73) is electrically connected to the PCB board (74) and the heating wire (72).

6. A rotary vaginal speculum as claimed in claim 5, characterized in that: A plurality of lighting devices (75) are fixedly connected to one end of the connecting rod (606) close to the base (607), and the lighting devices (75) are electrically connected to the battery (73) and the PCB board (74).

7. A rotary vaginal speculum as claimed in claim 2, characterized in that: The driving assembly (8) comprises a vertical rack (81), the rack (81) meshing with the large gear of the first double-layer gear (601), and a slider (82) is fixedly connected to the side of the rack (81) away from the first double-layer gear (601); The handle housing (1) is vertically provided with a rectangular hole (83) matching the slider (82) on one side thereof; the slider (82) is located in the rectangular hole (83) and slides vertically; and a switch (84) is fixedly connected to the side of the slider (82) away from the rack (81); the widths of the switch (84) and the rack (81) are both greater than the width of the rectangular hole (83).

8. A rotary vaginal speculum as claimed in claim 7, characterized in that: The rack (81) is fixedly connected with a spring sheet (85) on both sides along the length direction, and two slot plates (86) matching the ends of the spring sheet (85) are vertically arranged in the handle housing (1), and the two slot plates (86) are fixed on both sides of the handle housing (1) along the width direction of the rectangular hole (83).

9. A rotary vaginal speculum as claimed in claim 7, characterized in that: A gear mark (87) is provided on the outer side wall of the handle housing (1) along the length direction of the rectangular hole (83).

10. A rotary vaginal speculum as claimed in claim 1, characterized in that: The handle housing (1) is composed of a first housing (11) and a second housing (12) which are symmetrically spliced ​​together.

Images