A vaginal dilator

Abstract

The utility model aims to provide a vaginal dilator with a smoke duct having good airtightness. To achieve the above purpose, the utility model adopts the following scheme: a vaginal dilator, comprising a first expansion leaf and a second expansion leaf hinged to each other, the second expansion leaf is connected to a handle, a smoke pipe is provided on the side of the first expansion leaf facing the second expansion leaf, and one end of the first expansion leaf away from the hinged connection between the first expansion leaf and the second expansion leaf is clamped with the smoke pipe through a first clamping structure. The utility model has the following advantages of good airtightness.

Description

Technical Field

[0001] The utility model relates to a medical device, in particular to a vaginal dilator. Background Art

[0002] The vaginal dilator was invented as a way to dilate the patient's vagina instead of the doctor, making it easier for the doctor to examine the vagina. With the invention of the colposcope, the doctor can see the vaginal tissue more deeply and clearly, and the doctor can quickly diagnose the patient's condition. When the disease can be cured, the patient generally hopes that the surgical trauma is as small as possible, the recovery is as fast as possible, and the impact on life is as small as possible, so the surgical instruments are getting smaller and smaller. With the miniaturization of surgical instruments, colposcope manufacturers can integrate surgical instruments into the colposcope. The vaginal dilator only has the function of dilating the vagina and providing operating space for the colposcope.

[0003] When using a colposcope for surgery, it is often necessary to remove part of the diseased tissue. For this part of the diseased tissue, the colposcope generates a local high temperature environment through a laser for ablation. In this process, due to insufficient oxygen in the vagina, the tissue is not ablated sufficiently, and smoke and dust will be generated in the vagina. The smoke and dust will hinder the colposcope from obtaining a visual field. To solve this problem, a Chinese invention patent with the announcement number CN105595954B authorized on May 25, 2016 discloses a vaginal dilator with a smoke duct to facilitate the extraction of smoke and dust in the patient's vagina.

[0004] Since the vaginal dilator slides with the upper expansion leaf through the slide rails on both sides of the smoke exhaust groove, the smoke exhaust groove and the inner wall of the upper expansion leaf form a smoke exhaust channel for exhausting smoke, resulting in a gap between the upper expansion leaf and the smoke exhaust groove, and the smoke exhaust channel is not airtight. In actual use, low pressure cannot be formed deep in the vagina, and the high-pressure air outside the vagina cannot enter the vagina for replenishment. The air cannot circulate from the outside of the vagina to the inside of the vagina to the smoke exhaust channel, and smoke and dust are easily retained inside the vagina. Summary of the invention

[0005] The utility model aims to provide a vaginal dilator with a smoke duct having good air tightness.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following scheme: a vaginal dilator, comprising a first expansion leaf and a second expansion leaf hinged to each other, the second expansion leaf is connected to a handle, a smoke tube is provided on the side of the first expansion leaf facing the second expansion leaf, and an end of the first expansion leaf away from the hinged end is clamped with the smoke tube through a first clamping structure.

[0007] The smoke tube as a whole has better airtightness. When the smoke tube is connected to the exhaust fan at the outlet outside the vagina, the exhaust fan can form a low pressure inside the vagina through the inlet of the smoke tube inside the vagina, thereby forming a gas circulation of the outside of the vagina - the inside of the vagina - the smoke tube. The oxygen-rich air from the outside enters the vagina, and the oxygen-deficient air from the inside enters the flue. The sufficient oxygen allows the diseased tissue to be fully ablated, reducing the generation of smoke and dust. The oxygen-rich air from the outside enters the vagina to prevent the smoke and dust from overflowing, making it easier for the smoke and dust to be entrained into the exhaust duct by the air, thus preventing the smoke and dust from accumulating in the vagina and blocking the field of view of the endoscope. The first expansion leaf is connected to the smoke tube away from the hinged joint between the first expansion leaf and the second expansion leaf, so that the smoke and dust are fixedly connected to the first expansion leaf, avoiding the movement of the smoke and dust that hinders the doctor's operation.

[0008] Preferably, the first clamping structure includes a clamping block, the clamping block is provided with an airway connected to the smoke pipe, and the end of the smoke pipe close to the clamping block is provided with a boss extending outward, and the boss can extend outward from the airway after passing through the airway and clamp with the clamping block, so as to limit the movement and separation of the smoke pipe and the first expansion leaf along the length direction of the smoke pipe. The boss can cooperate with the smoke pipe to clamp the clamping block, so that the clamping block and the smoke pipe are fixed more firmly.

[0009] Preferably, the smoke pipe is provided with an elastic sheet extending toward the clamping block, and the boss is located at one end of the elastic sheet away from the smoke pipe. The elastic sheet is elastic, so that the relative boss can shrink inwards to pass through the airway, making it more convenient to fix the smoke pipe to the first expansion leaf.

[0010] Preferably, the cigarette tube includes a first cigarette tube and a second cigarette tube, the second cigarette tube is sleeved on the outside of the first cigarette tube, the first cigarette tube and the second cigarette tube are interference fit, and the first expansion leaf is clamped with the second cigarette tube through the second clamping mechanism at the position corresponding to the second cigarette tube, so as to limit the first expansion leaf and the second cigarette tube from separating in opposite directions. Since the first expansion leaf has a large curvature, the cigarette tube must also have a large curvature to fit the first expansion leaf, but the processing cost of the cigarette tube with a large curvature is high. In order to reduce costs, the cigarette tube is divided into a first cigarette tube and a second cigarette tube. The second cigarette tube is interference fit with the first cigarette tube to ensure the airtightness of the cigarette tube. The first expansion leaf and the second cigarette tube are clamped and fixed, so as to limit the movement of the second expansion leaf and affect the doctor's operation.

[0011] Preferably, the first expansion leaf has a notch passing through the first expansion leaf, and the outer side wall of the second smoke tube is provided with a barb extending outward, which can pass through the notch and clamp with the first expansion leaf, thereby limiting the first expansion leaf and the second smoke tube from separating in opposite directions.

[0012] Preferably, the barb includes a protrusion and a connecting piece, one end of the connecting piece is connected to the second smoke tube, and the other end of the connecting piece is connected to the protrusion, the connecting piece can pass through the notch, and the protrusion cooperates with the side of the smoke tube facing the first expansion leaf to clamp the first expansion leaf, thereby limiting the first expansion leaf from separating away from the second smoke tube.

[0013] The utility model has the following advantages: 1. Good air tightness; 2. Better fixation of the smoke tube and the first expansion leaf; 3. Lower manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the utility model;

[0015] Figure 2 is a stereogram of the first expansion leaf;

[0016] Figure 3 is a schematic diagram of the structure of the smoke pipe;

[0017] Figure 4 It is a schematic diagram of the structure when the smoke tube and the first expansion leaf are assembled;

[0018] Figure 5 It is a three-dimensional diagram of the utility model. DETAILED DESCRIPTION

[0019] Depend on Figure 1 and Figure 5 As shown, a vaginal dilator includes a first expansion leaf 1 and a second expansion leaf 2 which are hinged to each other, the second expansion leaf 2 is connected to a handle 3, a smoke tube 4 is provided on the side of the first expansion leaf 1 facing the second expansion leaf 2, the smoke tube 4 includes a first smoke tube 41 and a second smoke tube 42, the second smoke tube 42 is sleeved on the outside of the first smoke tube 41, the first smoke tube 41 and the second smoke tube 42 are interference fit, the first expansion leaf 1 is clamped with the second smoke tube 42 through a second clamping mechanism 6 at a position corresponding to the second smoke tube 42, so as to limit the first expansion leaf 41 and the second smoke tube 42 from being separated from each other.

[0020] Depend on Figures 1 to 4 As shown, one end of the first expansion leaf 1 away from the hinged connection between the first expansion leaf 1 and the second expansion leaf 2 is clamped with the smoke pipe 4 through the first clamping structure 5. The first clamping structure 5 includes a clamping block 51, and the clamping block 51 is provided with an air passage 52 connected to the smoke pipe 4. One end of the smoke pipe 4 close to the clamping block 51 is provided with a boss 53 extending outward. After passing through the air passage 52, the boss 53 can extend outward from the air passage 52 and clamp with the clamping block 51, so as to limit the movement and separation of the smoke pipe 4 and the first expansion leaf 1 along the length direction of the smoke pipe 4.

[0021] Depend on Figure 3 and Figure 4As shown, the smoke tube 4 is provided with an elastic sheet 54 extending toward the clamping block 51 , and the boss 53 is located at an end of the elastic sheet 54 away from the smoke tube 4 .

[0022] Depend on Figure 2 and Figure 5 As shown, the first expansion leaf 1 has a notch 61 passing through the first expansion leaf 1, and the outer wall of the second smoke tube 42 is provided with a barb 62 extending outward, which can pass through the notch 61 and clamp with the first expansion leaf 1, thereby limiting the first expansion leaf 1 and the second smoke tube 42 from separating in reverse.

[0023] Depend on Figure 3 As shown, the barb 62 includes a protrusion 621 and a connecting piece 622, one end of the connecting piece 622 is connected to the second smoke tube 42, and the other end of the connecting piece 622 is connected to the protrusion 621. The connecting piece 622 can pass through the notch 61, and the protrusion 621 cooperates with the side of the smoke tube 4 facing the first expansion leaf 1 to clamp the first expansion leaf 1, thereby limiting the first expansion leaf 1 and the second smoke tube 42 from separating in opposite directions.

Claims

1. A vaginal dilator, comprising a first dilator leaf (1) and a second dilator leaf (2) hinged to each other, wherein the second dilator leaf (2) is connected to a handle (3), characterized in that: A smoke tube (4) is provided on the side of the first expansion leaf (1) facing the second expansion leaf (2), and an end of the first expansion leaf (1) away from the hinged end is clamped to the smoke tube (4) via a first clamping structure (5).

2. The vaginal dilator according to claim 1, characterized in that: The first clamping structure (5) comprises a clamping block (51), the clamping block (51) being provided with an air passage (52) communicating with the smoke pipe (4), and one end of the smoke pipe (4) close to the clamping block (51) being provided with a boss (53) extending outwards, the boss (53) being able to extend outwards from the air passage (52) after passing through the air passage (52) and being clamped with the clamping block (51), thereby limiting the smoke pipe (4) and the first expansion leaf (1) from moving and separating along the length direction of the smoke pipe (4).

3. The vaginal dilator according to claim 2, characterized in that: The smoke pipe (4) is provided with a spring sheet (54) extending towards the clamping block (51), and the boss (53) is located at an end of the spring sheet (54) away from the smoke pipe (4).

4. The vaginal dilator according to claim 1, characterized in that: The smoke tube comprises a first smoke tube (41) and a second smoke tube (42); the second smoke tube (42) is sleeved on the outside of the first smoke tube (41); the first smoke tube (41) and the second smoke tube (42) are interference-fitted; the first expansion leaf (1) is clamped with the second smoke tube (42) at a position corresponding to the second smoke tube (42) through a second clamping mechanism (6), thereby limiting the first expansion leaf (1) and the second smoke tube (42) from being separated in opposite directions.

5. The vaginal dilator according to claim 4, characterized in that: The first expansion leaf (1) has a notch (61) penetrating the first expansion leaf (1), and the outer side wall of the second smoke tube (42) is provided with a barb (62) extending outwards, and the barb (62) can pass through the notch (61) and clamp onto the first expansion leaf (1), thereby limiting the first expansion leaf (1) and the second smoke tube (42) from separating in opposite directions.

6. The vaginal dilator according to claim 5, characterized in that: The barb (62) comprises a protrusion (621) and a connecting piece (622); one end of the connecting piece (622) is connected to the second smoke tube (42); the other end of the connecting piece (622) is connected to the protrusion (621); the connecting piece (622) is capable of passing through the notch (61); the protrusion (621) cooperates with a side of the smoke tube (4) facing the first expansion leaf (1) to clamp the first expansion leaf (1), thereby limiting the first expansion leaf (1) and the second smoke tube (42) from separating in opposite directions.

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