C-shaped movable duckbill pliers type medical vaginal speculum

Abstract

The invention discloses a C-shaped movable duckbill pliers type medical vaginal dilator, belongs to the technical field of medical instruments, and solves the problem that the vagina dilating effect is poor due to the fact that the distance between two pliers arms in an existing vaginal dilator cannot be adjusted. The C-shaped movable duckbill pliers type medical vaginal speculum comprises an upper pliers arm and a lower pliers arm, the end of the upper clamp arm is connected with a driving rack, the end of the lower clamp arm is connected with a fixing frame, and a driving assembly is arranged on the fixing frame. According to the device, the driving rack moves up and down in the fixing frame, and the distance between the upper clamp arm and the lower clamp arm is driven to change in the moving process; during treatment, after the forceps arm and the lower forceps arm are inserted into the vagina of a patient, the distance between the forceps arms is increased through the driving assembly, the interior of the vagina and the vaginal orifice are expanded, instruments can enter and exit conveniently, and the operation range is expanded; the driving rack and the driving assembly are connected to the single side of the upper forceps arm and the single side of the lower forceps arm respectively and are integrally arranged in a C shape, the coverage range on the vaginal orifice in the dilation process is small, the view blind area is small, and right-hand operation of a doctor is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a C-shaped movable duckbill forceps type medical vaginal dilator. Background Art

[0002] In the diagnosis and treatment of gynecological diseases, the vaginal speculum (commonly known as duckbill forceps) is an indispensable medical device. Its core function is to dilate the vagina to expose the cervix and vaginal wall, making it easier for doctors to perform visual inspections, sampling or auxiliary operations.

[0003] The structure of the existing vaginal dilator usually includes two clamp arms, which are hinged and connected. When in use, the two clamp arms are inserted into the patient's vagina in a closed state, and then the two clamp arms are opened by rotation. After the two clamp arms are opened, the patient's genitals are supported to facilitate the doctor's diagnosis or treatment. Although the existing vaginal dilator can achieve the function of vaginal dilation, there are still some defects in its use. The two clamp arms of the existing vaginal dilator are hinged and connected. In the expanded state, there is a larger opening at one end away from the hinge position, and a smaller opening near the hinge position. Therefore, in actual use, the opening range of the vagina is larger, and the opening range of the vaginal opening is smaller, which is not convenient for doctors to operate. In addition, the two clamp arms of the vaginal dilator are usually semicircular structures, and the two clamp arms are hinged at the ends of the two semicircles. The distance between the two at the hinge position cannot be adjusted; after the vagina is opened, the opening degree of the hinge position of the two clamp arms is fixed, that is, the opening degree of the vaginal opening is limited, and the hinge position of the two semicircular structures blocks the entire vaginal opening, and the blind spot of the operation field is large. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a C-shaped movable duckbill forceps type medical vaginal dilator, which solves the problem that the distance between the two forceps arms of the existing vaginal dilator cannot be adjusted, thereby poor effect of vaginal dilator expansion.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A C-shaped active duckbill forceps type medical vaginal dilator comprises an upper forceps arm and a lower forceps arm; the end of the upper forceps arm is connected to a driving rack, the end of the lower forceps arm is connected to a fixing frame, and a driving assembly is arranged on the fixing frame; the driving rack is drivingly connected to the driving assembly.

[0006] In this solution, the driving component can drive the driving rack to move up and down in the fixed frame. During the movement, the driving rack drives the upper clamping arm to move synchronously, thereby realizing the adjustment of the distance between the upper clamping arm and the lower clamping arm. During the process of vaginal dilation, after inserting the upper clamping arm and the lower clamping arm into the patient's vagina, the driving component is used to drive the distance between the two to increase, so that both the inside of the vagina and the vaginal orifice are opened, facilitating the entry and exit of instruments and expanding the operation range. The driving rack and the driving component are respectively connected to one side of the upper clamping arm and the lower clamping arm, and are integrally arranged in a C shape. During the dilation process, the coverage range of the vaginal orifice is small, and the visual blind area is small, which is convenient for the doctor to operate with the right hand.

[0007] Furthermore, the driving component includes a driving shaft, the driving shaft horizontally penetrates the fixed frame and is movably connected to the fixed frame; a driving gear is arranged on the driving shaft, and the driving gear is meshed and connected to the driving rack; one end of the driving shaft is provided with an adjusting knob.

[0008] In this solution, when performing vaginal dilation, rotate the adjusting knob to drive the driving shaft and the driving gear to rotate synchronously. During the rotation, the driving gear drives the driving rack to move upward, increasing the distance between the upper clamping arm and the lower clamping arm, thereby realizing vaginal dilation.

[0009] Furthermore, a limiting block is arranged on the side of the adjusting knob close to the fixed frame, and a plurality of limiting holes arranged in an annular array are opened on the side wall of the fixed frame. The limiting block is embedded in any one of the limiting holes.

[0010] In this solution, during the treatment process, after the vagina is dilated, to prevent the upper clamping arm and the lower clamping arm from closing due to the reaction of vaginal contraction, the limiting block is designed to be embedded in the limiting hole to fix the adjusting knob, avoiding its spontaneous rotation under the action of vaginal contraction.

[0011] Furthermore, a cross-shaped limiting rail is arranged on the outer surface of the end of the driving shaft connected to the adjusting knob, and a cross-shaped sliding groove is opened around the through hole in the center of the adjusting knob. The cross-shaped sliding groove is slidably connected to the cross-shaped limiting rail; A compression spring is arranged on the side of the adjusting knob away from the fixed frame; the compression spring is sleeved on the driving shaft, one end of the compression spring abuts against the adjusting knob, and the other end of the compression spring abuts against the shaft head at the end of the driving shaft.

[0012] In this solution, when adjusting the distance between the upper clamping arm and the lower clamping arm, move the adjusting knob along the cross-shaped limiting rail. During the movement, the adjusting knob squeezes the compression spring to make it contract. At the same time, the limiting block on the side of the adjusting knob is removed from the limiting hole, releasing the limiting effect on the adjusting knob. At this time, the distance between the upper clamping arm and the lower clamping arm can be increased or decreased by rotating the adjusting knob, and the adjustment of the dilation degree is more flexible.

[0013] Further, an annular groove is formed on one side of the adjusting knob that abuts against the compression spring, and the compression spring is accommodated inside the annular groove; the diameter of the shaft head is smaller than the diameter of the annular groove.

[0014] Further, a strip-shaped limiting block is connected to the bottom of the fixing frame, and two side sliding rails are respectively connected to both sides of the driving rack. The side sliding rails are slidably connected to the sliding grooves inside the strip-shaped limiting block.

[0015] In this solution, this design can ensure that the driving rack moves smoothly along the preset track.

[0016] Further, an illumination component is installed inside the upper clamp arm; the illumination component includes a lamp tube, a lamp shade, and a micro camera. The lamp tube is installed inside the lamp shade, and the micro camera is installed on the lamp shade; the lamp shade is fixed inside the upper clamp arm.

[0017] In this solution, installing the lamp tube inside the lower clamp arm facilitates the doctor to observe the lesion area during the diagnosis and treatment process; the micro camera can record the image information during the treatment process.

[0018] Further, a hand-held handle is provided at the bottom of the lower clamp arm.

[0019] Further, the driving rack is of an arc structure, and the radian range of the arc structure is from π / 12 to π / 6.

[0020] In this solution, with the arc structure design of the driving rack, while the driving rack drives the upper clamp arm to move upward, the upper clamp arm also rotates by a certain angle relative to the center of the driving rack; this design enables the vagina to be simultaneously expanded by the upper clamp arm and the lower clamp arm at both the vagina interior and the vaginal orifice during treatment, and retains the effect that the opening degree of the vaginal orifice by the traditional duckbill forceps is smaller than that of the vagina interior, avoiding the overall slippage of the speculum from the body during the treatment process.

[0021] Further, the radian of the arc structure is π / 9.

[0022] The beneficial effects of the present invention are: When the C-shaped movable duckbill forceps type medical speculum provided by the present invention is used for vaginal dilation, first insert the upper clamp arm and the lower clamp arm into the patient's vagina, then rotate the adjusting knob to drive the driving shaft and the driving gear to rotate synchronously. During the rotation process, the driving gear drives the driving rack to move upward, increasing the distance between the upper clamp arm and the lower clamp arm, so that both the vagina interior and the vaginal orifice are expanded, providing a larger operating space for the doctor to perform diagnosis or treatment; it overcomes the problem that the opening effect of the vaginal orifice is poor due to the inability to adjust the distance between the hinge positions of the two clamp arms of the traditional duckbill forceps after the vagina is expanded. At the same time, the driving rack with an arc design can ensure that the opening degree of the vaginal orifice is smaller than that of the vagina interior after the vagina is expanded, avoiding the overall slippage of the speculum from the body due to the contraction of the patient's vagina during the treatment process.

[0023] The driving component can drive the driving rack to move up and down in the fixed frame. During the movement, the driving rack drives the upper clamping arm to move synchronously, thereby realizing the adjustment of the distance between the upper clamping arm and the lower clamping arm. In the process of vaginal dilation, after inserting the upper clamping arm and the lower clamping arm into the patient's vagina, the driving component is used to drive the distance between the two to increase, so that both the inside of the vagina and the vaginal orifice are opened, providing a relatively large operating space for doctors to perform diagnosis or treatment. The driving rack and the driving component are respectively connected to one side of the upper clamping arm and the lower clamping arm. During the dilation process, the coverage area of the vaginal orifice is small, and the visual blind area is small, which is convenient for doctors to operate. Brief Description of the Drawings

[0024] Figure 1 It is the front view of a C-shaped movable duckbill pliers type medical vaginal dilator of the present invention; Figure 2 It is the right view of a C-shaped movable duckbill pliers type medical vaginal dilator of the present invention; Figure 3 It is the schematic cross-sectional structure view of a C-shaped movable duckbill pliers type medical vaginal dilator of the present invention; Figure 4 It is the schematic structure view of the driving component in the present invention; Figure 5 is Figure 2 the partial enlarged view of area A in Figure 6 It is the schematic diagram of the state after the upper clamping arm and the lower clamping arm of the present invention are opened.

[0025] Reference Signs: 1. Upper clamping arm; 2. Lower clamping arm; 21. Hand-held handle; 3. Driving rack; 31. Side slide rail; 4. Fixed frame; 41. Limit hole; 42. Strip-shaped limit block; 5. Driving component; 51. Driving shaft; 52. Driving gear; 53. Adjusting knob; 54. Limit stop block; 55. Cross-shaped limit rail; 56. Compression spring; 57. Axle head; 6. Lighting component; 61. Lamp tube; 62. Lamp shade; Detailed Embodiments The following further describes the present invention with reference to the drawings and specific embodiments. The following describes the specific embodiments of the present invention to facilitate those skilled in the art to understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are within the scope of protection.

[0026] Such as Figures 1-3As shown in the figure, this embodiment provides a C-shaped movable duckbill forceps type medical vaginal speculum. The C-shaped movable duckbill forceps type medical vaginal speculum realizes the dilation of the vagina by adjusting the distance between the two forceps arms, and there is a relatively large operating space for doctors to perform diagnosis or treatment after dilation. Specifically, it includes: an upper forceps arm 1, a lower forceps arm 2, a driving rack 3, a fixing frame 4, and a driving component 5; Among them, a driving rack 3 is connected to the end of the upper forceps arm 1, a fixing frame 4 is connected to the end of the lower forceps arm 2, and a driving component 5 is arranged on the fixing frame 4; the driving rack 3 is in transmission connection with the driving component 5, and the driving component 5 can drive the driving rack 3 to move up and down in the fixing frame 4. During the movement, the driving rack 3 drives the upper forceps arm 1 to move synchronously, thereby realizing the adjustment of the distance between the upper forceps arm 1 and the lower forceps arm 2. During the process of vaginal dilation, after inserting the upper forceps arm 1 and the lower forceps arm 2 into the patient's vagina, the driving component 5 is used to drive the distance between them to increase, so that both the inside of the vagina and the vaginal orifice are opened, and there is a relatively large operating space for doctors to perform diagnosis or treatment; the driving rack 3 and the driving component 5 are respectively connected to one side of the upper forceps arm 1 and the lower forceps arm 2, and the coverage range of the vaginal orifice during the dilation process is small, and the visual blind area is small, which is convenient for doctors to operate.

[0027] As Figure 4 shown, the driving component 5 includes a driving shaft 51, a driving gear 52, and an adjusting knob 53; the driving shaft 51 passes through the fixing frame 4 horizontally and is movably connected to the fixing frame 4; a driving gear 52 is arranged on the driving shaft 51, and the driving gear 52 is meshed with the driving rack 3; an adjusting knob 53 is arranged at one end of the driving shaft 51. When performing vaginal dilation, rotate the adjusting knob 53 to drive the driving shaft 51 and the driving gear 52 to rotate synchronously. During the rotation, the driving gear 52 drives the driving rack 3 to move upward, so that the distance between the upper forceps arm 1 and the lower forceps arm 2 increases, thereby realizing vaginal dilation.

[0028] A limit stop block 54 is arranged on the side of the adjusting knob 53 close to the fixing frame 4, and a plurality of annularly arranged limit holes 41 are opened on the side wall of the fixing frame 4, and the limit stop block 54 is embedded in any one of the limit holes 41. During the treatment process, after the vagina is dilated, in order to prevent the upper forceps arm 1 and the lower forceps arm 2 from closing due to the reaction of the vaginal contraction, the limit stop block 54 is designed to be embedded in the limit hole 41 to fix the adjusting knob 53 and prevent it from rotating spontaneously under the action of the vaginal contraction.

[0029] On the outer surface of one end of the drive shaft 51 connected to the adjusting knob 53, a cross-shaped limiting rail 55 is provided. Around the through hole in the center of the adjusting knob 53, a cross-shaped sliding groove is formed. The cross-shaped sliding groove is slidably connected to the cross-shaped limiting rail 55; on the side of the adjusting knob 53 away from the fixed frame 4, a compression spring 56 is provided; the compression spring 56 is sleeved on the drive shaft 51. One end of the compression spring 56 abuts against the adjusting knob 53, and the other end of the compression spring 56 abuts against the shaft head 57 at the end of the drive shaft 51. When adjusting the distance between the upper clamping arm 1 and the lower clamping arm 2, move the adjusting knob 53 along the cross-shaped limiting rail 55. During the movement, the adjusting knob 53 squeezes the compression spring 56 to make it contract. At the same time, the limiting block 54 on the side of the adjusting knob 53 is removed from the limiting hole 41, releasing the limiting effect on the adjusting knob 53. At this time, the distance between the upper clamping arm 1 and the lower clamping arm 2 can be increased or decreased by rotating the adjusting knob 53, making the adjustment of the vaginal dilation degree more flexible.

[0030] On the side of the adjusting knob 53 abutting against the compression spring 56, an annular groove is formed. The compression spring 56 is accommodated inside the annular groove; the diameter of the shaft head 57 is smaller than the diameter of the annular groove.

[0031] At the bottom of the fixed frame 4, a strip-shaped limiting block 42 is connected. On both sides of the driving rack 3, two side sliding rails 31 are respectively connected. The side sliding rails 31 are slidably connected in the sliding grooves inside the strip-shaped limiting block 42. This design can ensure that the driving rack 3 moves smoothly along the preset path.

[0032] As Figure 5 shown, inside the upper clamping arm 1, a lighting component 6 is installed, which is convenient for doctors to observe the lesion area during the diagnosis and treatment process.

[0033] The lighting component 6 includes a lamp tube 61, a lamp shade 62, a micro camera 63, a circuit board and a battery; the circuit board is installed inside the upper clamping arm 1 by screws. The lamp tube 61 and the power supply are both installed on the circuit board and are electrically connected; the lamp tube 61, the circuit board and the battery are all arranged inside the lamp shade 62; the micro camera 63 is installed on the lamp shade 62. One end of the lamp shade 62 is buckled in the clamping seat on the inner wall of the upper clamping arm 1, and the other end of the lamp shade 62 is fixed on the upper clamping arm 1 by screws.

[0034] At the bottom of the lower clamping arm 2, a hand-held handle 21 is provided.

[0035] The driving rack 3 is an arc-shaped structure, and the radian range of the arc-shaped structure is from π / 12 to π / 6. With the arc-shaped structure design of the driving rack 3, while the driving rack 3 drives the upper forceps arm 1 to move upward, the upper forceps arm 1 also rotates by a certain angle relative to the center of the driving rack 3; this design enables the vagina interior and the vaginal orifice to be simultaneously expanded by the upper forceps arm 1 and the lower forceps arm 2 during the treatment of vaginal dilation, and retains the effect that the degree of vaginal orifice dilation by the traditional duckbill forceps is less than that of the vagina interior, avoiding the overall slipping out of the speculum from the body during the treatment process; the effect after the upper forceps arm and the lower forceps arm open their mouths is as Figure 6 shown.

[0036] Preferably, the driving rack 3 is an arc-shaped structure, and the radian of the arc-shaped structure is π / 9.

[0037] The working principle of this embodiment is as follows: During the process of vaginal dilation with the C-shaped movable duckbill forceps type medical speculum of this embodiment, first insert the upper forceps arm 1 and the lower forceps arm 2 into the patient's vagina, then rotate the adjustment knob 53 to drive the driving shaft 51 and the driving gear 52 to rotate synchronously. During the rotation process, the driving gear 52 drives the driving rack 3 to move upward, increasing the distance between the upper forceps arm 1 and the lower forceps arm 2, so that both the vagina interior and the vaginal orifice are expanded, providing a relatively large operating space for doctors to perform diagnosis or treatment; it overcomes the problem that the traditional duckbill forceps have a poor effect on dilating the vaginal orifice because the distance between the hinge positions of the two forceps arms of the duckbill forceps cannot be adjusted. At the same time, with the driving rack 3 designed in an arc shape, it can ensure that the degree of vaginal orifice dilation is less than that of the vagina interior after the vagina is dilated, avoiding the overall slipping out of the speculum from the body due to the contraction of the patient's vagina during the treatment process.

[0038] Those of ordinary skill in the art will realize that the embodiments here are to help readers understand the principles of the present invention, and it should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific deformations and combinations that do not depart from the essence of the present invention based on the technical revelations disclosed in the present invention, and these deformations and combinations are still within the protection scope of the invention.

Claims

1. A C-type movable duckbill pliers type medical speculum, characterized in that: It includes an upper clamping arm (1) and a lower clamping arm (2); a driving rack (3) is connected to the end of the upper clamping arm (1), a fixing frame (4) is connected to the end of the lower clamping arm (2), and a driving component (5) is arranged on the fixing frame (4); the driving rack (3) is in transmission connection with the driving component (5).

2. The C-shaped movable duckbill pliers type medical vaginal speculum according to claim 1, characterized in that: The driving component (5) includes a driving shaft (51), the driving shaft (51) horizontally penetrates through the fixing frame (4) and is movably connected to the fixing frame (4); a driving gear (52) is arranged on the driving shaft (51), the driving gear (52) is meshed and connected with the driving rack (3); an adjusting knob (53) is arranged at one end of the driving shaft (51).

3. The C-shaped movable duckbill pliers type medical vaginal speculum according to claim 2, wherein: A limiting block (54) is arranged on one side of the adjusting knob (53) close to the fixing frame (4), a plurality of annularly arrayed limiting holes (41) are formed in the side wall of the fixing frame (4), and the limiting block (54) is embedded in any one of the limiting holes (41).

4. The C-type movable duckbill forceps type medical speculum according to claim 3, characterized in that: A cross-shaped limiting rail (55) is arranged on the outer surface of the end of the driving shaft (51) connected to the adjusting knob (53), a cross-shaped sliding groove is formed around the through hole at the center of the adjusting knob (53), and the cross-shaped sliding groove is slidably connected with the cross-shaped limiting rail (55). A compression spring (56) is arranged on one side of the adjusting knob (53) away from the fixing frame (4); the compression spring (56) is sleeved on the driving shaft (51), one end of the compression spring (56) abuts against the adjusting knob (53), and the other end of the compression spring (56) abuts against the shaft head (57) at the end of the driving shaft (51).

5. The C-shaped movable duckbill pliers type medical speculum according to claim 4, characterized in that: An annular groove is formed on one side of the adjusting knob (53) abutting against the compression spring (56), and the compression spring (56) is accommodated inside the annular groove; the diameter of the shaft head (57) is smaller than the diameter of the annular groove.

6. The C-shaped movable duckbill pliers type medical speculum according to claim 1, characterized in that: A strip-shaped limiting block (42) is connected to the bottom of the fixing frame (4), two side sliding rails (31) are respectively connected to both sides of the driving rack (3), and the side sliding rails (31) are slidably connected in the sliding grooves inside the strip-shaped limiting block (42).

7. The C-shaped movable duckbill pliers type medical vaginal speculum according to any one of claims 1 to 6, characterized in that: A lighting component (6) is installed inside the upper clamping arm (1). The lighting component (6) includes a lamp tube (61), a lamp shade (62) and a micro camera (63), the lamp tube (61) is installed inside the lamp shade (62), the micro camera (63) is installed on the lamp shade (62); the lamp shade (62) is fixed inside the upper clamping arm (1).

8. The C-shaped movable duckbill pliers type medical vaginal speculum according to any one of claims 1 to 6, characterized in that: A hand-held handle (21) is arranged at the bottom of the lower clamping arm (2).

9. The C-type movable duckbill pliers type medical speculum according to any one of claims 1 to 6, characterized in that: The driving rack (3) is of an arc structure, and the radian range of the arc structure is from π / 12 to π / 6.

10. The C-shaped movable duckbill pliers type medical vaginal speculum according to claim 9, characterized in that: The radian of the arc structure is π / 9.

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