阅读说明：本技术 阴道窥镜 (Vaginal speculum ) 是由 岩崎能久 于 2020-03-06 设计创作，主要内容包括：提供一种能够缓解给人造成的不舒适感的阴道窥镜。阴道窥镜具备第一部分、第二部分、第一弹性体部和第二弹性体部。第一部分具有环状的框体部、被插入到阴道腔中的第一翼片部和第一手柄部。第二部分具有面对第一手柄部的第二手柄部、和与第一翼片部一起被插入到阴道腔中的第二翼片部。第一弹性体部是弹性体制品,被配置在第一翼片部的外侧面上。第二弹性体部是弹性体制品,被配置在第二翼片部的外侧面上。第二手柄部构成为能够相对于第一手柄部进行转动。第二翼片部与第二手柄部的转动联动动作,以相对于第一翼片部相对地远离或接近的方式进行转动。在第一翼片部及第二翼片部被插入到阴道腔时,第一弹性体部及第二弹性体部阻碍第一翼片部的外侧面及第二翼片部的外侧面接触阴道腔的内壁。(Provided is a vaginal speculum which can alleviate discomfort caused to a person. The vaginal speculum includes a first portion, a second portion, a first elastic body portion, and a second elastic body portion. The first portion has a ring-shaped frame portion, a first tab portion that is inserted into the vaginal cavity, and a first handle portion. The second portion has a second handle portion facing the first handle portion and a second tab portion inserted into the vaginal cavity with the first tab portion. The first elastic body portion is an elastic body product and is disposed on an outer side surface of the first flap portion. The second elastomeric portion is an elastomeric article and is disposed on an outer side of the second flap portion. The second handle portion is configured to be rotatable relative to the first handle portion. The second flap portion is rotated so as to be relatively separated from or brought close to the first flap portion in conjunction with the rotation of the second handle portion. The first and second elastomeric portions inhibit an outer side surface of the first tab portion and an outer side surface of the second tab portion from contacting an inner wall of the vaginal cavity when the first and second tab portions are inserted into the vaginal cavity.)

1. A vaginal speculum includes a first portion, a second portion, a first elastic body portion made of an elastic body, and a second elastic body portion made of an elastic body,

the first portion has: an annular frame portion extending in the front-rear direction; a first wing part extending forward from the frame part and inserted into the vaginal cavity; and a first handle portion extending radially from the housing portion,

the second portion has: a second handle portion facing the first handle portion; and a second blade portion extending forward from the second handle portion so as to face the first blade portion, the second blade portion being inserted into the vaginal cavity together with the first blade portion,

the first elastic body portion is disposed on a first outer side surface of the first flap portion on an opposite side to the second flap portion,

the second elastomer portion is disposed on a second outer side of the second flap portion on the opposite side from the first flap portion,

the second handle portion is configured to be relatively rotatable with respect to the first handle portion,

the second wing portion is configured to rotate relative to the first wing portion so as to relatively move away from or approach the first wing portion in conjunction with rotation of the second handle portion relative to the first handle portion,

the first and second elastomer portions are configured to block the first outer side of the first tab portion and the second outer side of the second tab portion from contacting an inner wall of the vaginal cavity when the first and second tab portions are inserted into the vaginal cavity.

2. The vaginal speculum of claim 1,

the first elastic body portion has a protruding portion protruding forward of a distal end portion of the first flap portion.

3. The vaginal speculum of claim 1 or 2, wherein,

the second elastic body portion has a protruding portion protruding forward of a front end portion of the second flap portion.

4. The vaginal speculum of any one of claims 1 to 3,

the first portion and the second portion are formed of a hard resin or metal.

5. The vaginal speculum of any one of claims 1 to 4,

the first elastic body portion is formed so as not to be separable from the first portion,

the second elastic body portion is formed so as not to be separable from the second portion.

6. The vaginal speculum of any one of claims 1 to 5,

one of the first handle portion and the second handle portion has a projecting member having a body portion extending in the front-rear direction and a projection formed on the body portion,

the other of the first handle portion and the second handle portion includes: a through hole through which the protruding member passes; and a locking member configured to be engaged with the projection to lock a rotational position of the second blade portion with respect to the first blade portion.

7. The vaginal speculum of claim 6,

at least one of the protruded member and the locking member is a soft resin product.

8. The vaginal speculum of any one of claims 1 to 7,

the first wing part has a first convex part formed by partially raising the first outer side surface,

the second fin portion has a second convex portion formed by partially bulging the second outer side surface,

the first elastic body portion is disposed on the first outer side surface other than the first convex portion so as to be in close contact with a side peripheral portion of the first convex portion, and the second elastic body portion is disposed on the second outer side surface other than the second convex portion so as to be in close contact with a side peripheral portion of the second convex portion.

Technical Field

The present invention relates to vaginal specula.

Background

A vaginal speculum is used for performing a visual examination of the inside of a vaginal cavity or a uterus and performing a medical treatment. The vaginal speculum is inserted into the vaginal cavity, spreading the vaginal cavity apart. For example, patent document 1 discloses a vaginal speculum in which a pair of separable blades are connected to each other so as to be relatively rotatable. In this vaginal speculum, two rows of ratchet teeth are provided on one blade, and a pawl that can be selectively engaged with the ratchet teeth is provided on the other blade. The vaginal speculum is provided with a means for connecting the rows to each other and moving the claws from one row to the other.

Patent document 1: japanese patent laid-open publication No. 51-51188

The vaginal speculum disclosed in patent document 1 is made of plastic (hard resin). Such a vaginal speculum is likely to cause discomfort such as pain when inserted into a vaginal cavity. In addition, the conventionally used metal vaginal speculum may cause a feeling of coolness to the vagina, and thus may cause discomfort to a person.

Disclosure of Invention

The invention aims to provide a vaginal speculum which can relieve discomfort caused by people.

A vaginal speculum according to one aspect of the present invention includes a first portion, a second portion, a first elastic body portion, and a second elastic body portion. The first part has: an annular frame portion extending in the front-rear direction; a first wing part extending forward from the frame part and inserted into the vaginal cavity; a first handle portion extending radially from the housing portion. The second part has: a second handle portion facing the first handle portion; and a second blade portion extending forward from the second handle portion so as to face the first blade portion, and inserted into the vaginal cavity together with the first blade portion. The first elastic body portion is an elastic article and is disposed on a first outer side surface of the first flap portion on the opposite side of the second flap portion. The second elastomeric portion is an elastomeric article disposed on a second outboard side of the second flap portion opposite the first flap portion. The second handle portion is configured to be rotatable relative to the first handle portion. The second flap portion is configured to be relatively rotated so as to be relatively separated from or brought close to the first flap portion in association with a rotational movement of the second handle portion with respect to the first handle portion. The first and second elastomer portions are configured to obstruct the first lateral side of the first tab portion and the second lateral side of the second tab portion from contacting an inner wall of the vaginal cavity when the first and second tab portions are inserted into the vaginal cavity.

The term "elastomer" is a general term for a polymer material having elasticity, and includes rubber and thermoplastic elastomers.

According to the above configuration, the first elastic body portion made of an elastic material is disposed on the first outer surface of the first fin portion inserted into the vaginal cavity. A second elastic body portion made of an elastic body is arranged on a second outer side surface of a second fin portion inserted into the vaginal cavity together with the first fin portion. Thus, when the first and second fin portions are inserted into the vaginal cavity, the first and second elastic portions prevent the first and second outer side surfaces of the first and second fin portions from contacting the inner wall of the vaginal cavity. That is, pain, a cold feeling, and a foreign matter feeling generated when the first outer side surface of the first fin portion and the second outer side surface of the second fin portion contact the inner wall of the vaginal cavity are reduced, and a sense of discomfort caused by the person is relieved. The first and second elastic body portions may not completely prevent contact with the inner wall of the vaginal speculum, as long as they are arranged to alleviate discomfort caused by the first and second outer side surfaces contacting the inner wall of the vaginal cavity.

In the vaginal speculum, the first elastic body portion may have a protruding portion that protrudes forward from a distal end portion of the first blade portion.

In the vaginal speculum, the second elastic body portion may have a protruding portion that protrudes forward from a distal end portion of the second flap portion.

In the vaginal speculum, the first portion and the second portion may be formed of a hard resin or metal.

In the vaginal speculum, the first elastic body portion may be formed so as not to be separable from the first portion, and the second elastic body portion may be formed so as not to be separable from the second portion.

In the vaginal speculum, one of the first handle portion and the second handle portion may have a projecting member having a body portion extending in the front-rear direction and a projection formed on the body portion. Further, the other of the first handle portion and the second handle portion may include: a through hole through which the protruding member passes; and a locking member configured to engage with the projection and lock a rotational position of the second fin portion with respect to the first fin portion.

According to the above configuration, since the rotational position of the second blade portion with respect to the first blade portion can be locked, workability when using the vaginal speculum is improved.

In the vaginal speculum, at least one of the protruding member and the locking member may be a soft resin product.

According to the above configuration, at least one of the protruding member and the locking member is easily elastically deformed, so that the operability is improved and the touch is soft.

In the vaginal speculum, the first flap portion may have a first protrusion formed by partially bulging the first outer side surface, the second flap portion may have a second protrusion formed by partially bulging the second outer side surface, the first elastic body portion may be disposed on the first outer side surface other than the first protrusion so as to be in close contact with a side peripheral portion of the first protrusion, and the second elastic body portion may be disposed on the second outer side surface other than the second protrusion so as to be in close contact with a side peripheral portion of the second protrusion.

Effects of the invention

According to the above aspect, when the first flap portion and the second flap portion are inserted into the vaginal cavity, the first elastic body portion and the second elastic body portion prevent the first outer side surface of the first flap portion and the second outer side surface of the second flap portion from contacting the inner wall of the vaginal cavity. Therefore, pain, cold feeling and foreign body feeling caused by the contact of the first wing piece part and the second wing piece part with the inner wall of the vaginal cavity are weakened, and discomfort caused by people is relieved.

Drawings

Fig. 1A is a perspective view of a vaginal speculum viewed from the rear part side.

Fig. 1B is a perspective view of the vaginal speculum viewed from the front part side.

Fig. 2 is a perspective view of the rear portion (first portion).

Fig. 3 is a perspective view of the front portion (second portion).

Fig. 4A is a perspective view of the locking member.

Fig. 4B is a perspective view of the locking member.

Fig. 5 is a perspective view of the protruding member.

Fig. 6 is a perspective view showing an opened state of the vaginal speculum.

Fig. 7 is a perspective view of a vaginal speculum according to another embodiment.

Fig. 8 is an exploded perspective view of a vaginal speculum according to another embodiment.

Fig. 9 is another perspective view of a vaginal speculum according to another embodiment.

Fig. 10 is another exploded perspective view of a vaginal speculum according to another embodiment.

Fig. 11 is a perspective view showing a locked state of the vaginal speculum.

Fig. 12 is a side view showing an opened state of the vaginal speculum.

Fig. 13 is a rear view showing a locked state of the vaginal speculum.

Detailed Description

Next, a vaginal speculum according to an embodiment of the present invention will be described with reference to the drawings.

<1-1 > the structure of the vaginal speculum of the first embodiment

Fig. 1A and 1B are perspective views of a vaginal speculum 1 according to a first embodiment. As shown in fig. 1, the vaginal speculum 1 has a rear portion (first portion) 10 disposed at the rear and a front portion (second portion) 20 disposed at the front. The rear portion 10 has a first flap portion 11 (see fig. 2). The front portion 20 has a second fin portion 21 (see fig. 3). The first fin portion 11 and the second fin portion 21 are portions to be inserted into the vaginal cavity. The vaginal speculum 1 further includes a first elastomer portion 50 made of an elastomer and disposed on the first outer side surface 111 of the first flap portion 11, and a second elastomer portion 60 made of an elastomer and disposed on the second outer side surface 211 of the second flap portion 21.

Fig. 2 is a perspective view of the rear portion 10. As shown in fig. 2, the rear portion 10 has a ring-shaped or substantially cylindrical frame portion 13 at the rear. The frame portion 13 extends in the front-rear direction as shown in fig. 2, and the second handle portion 12 and the first blade portion 11 are connected to the front side. The frame portion 13 has through holes 130 and 131 on both sides in the left-right direction shown in fig. 2. The through-holes 130 and 131 are formed at opposing positions and receive the protruding portions 230 and 231 of the front portion 20, respectively, which will be described later. Thereby, the rear portion 10 and the front portion 20 are joined. The rear portion 10 is preferably a hard resin article, and more preferably transparent.

The rear portion 10 also has a first flap portion 11. The first fin portion 11 is a portion to be inserted into the vaginal cavity, and extends forward continuously from the inner and outer surfaces of the frame portion 13. The first fin portion 11 has a shape recessed from the end portions in the left-right direction shown in fig. 2 toward the center. The first fin portion 11 is formed such that the tip end thereof becomes thinner as the width in the left-right direction decreases from the rear end portion toward the front end portion 110. The tip end portion 110 is formed in a shape with a circular arc.

The rear portion 10 also has a first handle portion 12. The first handle portion 12 is a portion that a user of the vaginal speculum 1 holds with a hand when operating the vaginal speculum 1. The first handle portion 12 extends continuously in a radial direction from the front end of the frame portion 13. The position where the first handle portion 12 is continuous faces the position where the first wing portion 11 extends continuously on the side peripheral portion of the frame portion 13. In the present embodiment, the angle α formed by the first fin portion 11 and the first grip portion 12 is larger than the angle β formed by the second fin portion 21 and the second grip portion 22, which will be described later, with respect to the connection portion in the frame portion 13.

The first handle portion 12 has a through hole 120 near the center in the longitudinal direction. The through hole 120 is a hole through which the projecting member 31 described later passes. The first handle portion 12 also has a locking member 30. The lock member 30 constitutes a lock mechanism together with a projecting member 31 described later, and locks the rotational position of the second blade portion 21 with respect to the first blade portion 11. The structure and operation of the lock mechanism will be described later. Further, a plurality of grooves are formed in the front edge of the end of the first grip portion 12 opposite to the frame portion 13. The slip stopper 122 is formed of a plurality of grooves to prevent slipping when a user grips the slide stopper. The slip stopper 122 is not limited to the groove, and may be constituted by a convex portion or a combination of a concave portion and a convex portion. Further, a member made of a material for preventing slippage, such as an elastic body, is fixed.

The lock member 30 is disposed at an end opposite to the frame portion 13 behind the first grip portion 12. Fig. 4A is a perspective view of the lock member 30 as viewed from the rear, and fig. 4B is a perspective view of the lock member 30 as viewed from the front. The lock member 30 includes a body 300 and a pair of rod-shaped portions 301 and 301 extending from one end of the body 300. The main body 300 is generally oblong.

As shown in fig. 4A, the rear surface of the main body 300 is gently concave toward the vicinity of the central portion, and has projections and depressions for hooking the fingers formed thereon. The pair of rod-shaped portions 301 and 301 are arranged at a predetermined interval. As shown in fig. 4B, two rows of ridges 302, 302 are formed on the front surface of the main body 300. The protruding strips 302, 302 engage with the rectangular through hole 121 formed in the first handle portion 12 (see fig. 1B). The lock member 30 is engaged with the rectangular through hole 121 and is movable in the longitudinal direction within the rectangular through hole 121. More specifically, the lock member 30 is slidable with respect to the housing portion 13 so that the pair of rod-shaped portions 301 and 301 are positioned away from the through hole 120 and the pair of rod-shaped portions 301 and 301 overlap each other with a gap therebetween. The lock member 30 is preferably made of a soft resin.

Fig. 3 is a perspective view of the front portion 20. The front portion 20 is disposed in front of the rear portion 10 and coupled to the rear portion 10. The front portion 20 has a second tab portion 21 and a second handle portion 22. The second handle portion 22 is a portion facing the first handle portion 12 as shown in fig. 1, and extends in the up-down direction shown in fig. 3. A coupling portion 23 is formed at the lower end of the second handle portion 22, and the second wing portion 21 extends forward from the coupling portion 23. In the present embodiment, the front portion 20 is configured such that the second flap 21 and the second handle 22 form an included angle β with respect to the connection portion 23. As previously mentioned, included angle β is smaller than included angle α. The front portion 20 is preferably a rigid resin article, and more preferably transparent.

The coupling portion 23 has a cylindrical projection 230 and a projection 231 at the rear end. The convex portions 230 and 231 protrude in the left-right direction shown in fig. 3, and are formed at opposing positions. The projection 230 is rotatably received in the through hole 130 of the rear portion 10. The protruding portion 231 is rotatably received in the through hole 131 of the rear portion 10. The rear portion 10 and the front portion 20 are thereby coupled, and the second handle portion 22 is configured to be relatively rotatable with respect to the first handle portion 12, with the axis a1 shown in fig. 1 as a rotation axis. Thus, the second flap 21 is relatively rotated so as to be relatively separated from or approach the first flap 11 in conjunction with the rotation of the second handle 22 relative to the first handle 12.

The second flap 21 extends forward from the connection portion 23 (second handle portion 22) so as to face the first flap 11. The second fin portion 21 is a portion that is inserted into the vaginal cavity together with the first fin portion 11. The second fin portion 21 has a shape recessed from the end portions in the left-right direction shown in fig. 3 toward the center. The tip is formed to be thinner as the width in the left-right direction decreases from the rear end portion toward the front end portion 210. The front end portion 210 of the second fin portion 21 is formed in a rounded shape.

The second handle portion 22 is a portion that a user of the vaginal speculum 1 holds together with the first handle portion 12 with a hand when operating the vaginal speculum 1. A concave-convex portion 221 for hooking a finger is formed on the upper end portion and the front surface of the second handle portion 22. The concave-convex portion 221 may be formed by at least one of a groove and a ridge. For example, a material different from the material of the second handle portion 22 may be provided. The second handle portion 22 has a through hole 220 in the vicinity of the center in the longitudinal direction, and a projecting member 31 fixed in the through hole 220 and extending rearward. The side peripheral portion of the tip end portion 312 (see fig. 5) of the projecting member 31 is fixed to the inner peripheral portion of the through hole 220 so as to be inseparable.

Fig. 5 is a perspective view of the projecting member 31. The projecting member 31 has a main body portion 310 and a plurality of projections 311 formed on the main body portion 310. The main body 310 extends in the front-rear direction shown in fig. 1A, and has a front end 312 and a rear end 313. The protrusions 311 are formed at predetermined intervals between the front end 312 and the rear end 313.

The protrusion 311 is formed in a disk shape centered on the longitudinal axis of the body portion 310, and is configured to be able to pass through the through hole 120 of the first handle portion 12. The protrusion 311 is configured to have an outer diameter larger than the interval between the pair of rod-shaped portions 301 and 301 of the lock member 30, and not to pass through the gap between the pair of rod-shaped portions 301 and 301. The diameter of the body 310 is smaller than the interval between the pair of rod-shaped portions 301 and 301 of the lock member 30. The protruded member 31 is preferably a soft resin product.

As shown in fig. 1, the vaginal speculum 1 further includes a first elastic body portion 50. The first elastic body portion 50 is an elastic body product, and is disposed on the first outer side surface 111 of the first flap portion 11. However, as shown in fig. 2, the first outer side surface 111 is a surface of the first fin portion 11 on the opposite side of the second fin portion 21. The first elastic body portion 50 is formed inseparably from the first flap portion 11, and covers the first outer side surface 111 of the first flap portion 11. Thus, when the first tab portion 11 is inserted into the vaginal cavity, the first elastomer portion 50 blocks the first outer side 111 of the first tab portion 11 from contacting the inner wall of the vaginal cavity.

As shown in fig. 6, the first elastic body portion 50 in the present embodiment has a protruding portion 500 protruding forward of the distal end portion 110 of the first flap portion 11. That is, the first elastic body portion 50 may be formed to be thicker at the distal end portion 110 of the first flap portion 11 than at other portions. Thus, when the first fin portion 11 is inserted into the vaginal cavity, the first elastic body portion 50 prevents the distal end portion 110 of the first fin portion 11 from contacting the inner wall of the vaginal cavity.

As shown in fig. 1, the vaginal speculum 1 further includes a second elastic body portion 60. The second elastomeric portion 60 is an elastomeric article and is disposed on the second outer side 211 of the second flap portion 21. However, as shown in fig. 3, the second outer side surface 211 is a surface of the second flap portion 21 on the opposite side of the first flap portion 11. The second elastomer part 60 is inseparably formed from the second flap part 21 and covers the second outer side 211 of the second flap part 21. Thus, the second elastomeric portion 60 blocks the second outer side 211 of the second tab portion 21 from contacting the inner wall of the vaginal cavity when the second tab portion 21 is inserted into the vaginal cavity.

As shown in fig. 6, the second elastic body portion 60 in the present embodiment has a protruding portion 600 protruding forward of the distal end portion 210 of the second flap portion 21. That is, the second elastic body portion 60 may be formed thicker at the distal end portion 210 of the second flap portion 21 than at other portions. Thus, when the second fin portion 21 is inserted into the vaginal cavity, the second elastic body portion 60 prevents the front end portion 210 of the second fin portion 21 from contacting the inner wall of the vaginal cavity.

In the case where the rear portion 10 (except for the locking member 30 or the projecting member 31) is formed of a hard resin, the rear portion 10 and the first elastic body portion 50 can be integrally molded by two-color molding, for example. First, a hard resin material is injected into a primary mold for molding the rear part 10, and the primary mold is opened. Then, the molded rear portion 10 is turned into a secondary mold for molding the first elastomer portion 50. The raw material of the elastomer for molding the first elastomer portion 50 is injected into the secondary mold, and the raw material of the elastomer is crosslinked. Then, the rear portion 10 and the first elastic body portion 50 are manufactured in an integrated state when the secondary mold is opened.

Similarly, in the case where the front portion 20 (except for the locking member 30 or the projecting member 31) is formed of a hard resin, the front portion 20 and the second elastic body portion 60 can be integrally molded by two-color molding, for example. First, a hard resin material is injected into a primary mold for molding the front portion 20, and the primary mold is opened. Then, the molded front portion 20 is transferred to a secondary mold for molding the second elastomer portion 60. The raw material of the elastomer for molding the second elastomer portion 60 is injected into the secondary mold, and the raw material of the elastomer is crosslinked. Then, when the secondary mold is opened, the front portion 20 and the second elastomer portion 60 are manufactured in an integrated state.

<1-2 > the structure of the vaginal speculum according to the second embodiment

Next, a vaginal speculum 1A according to a second embodiment will be described. As shown in the perspective views of fig. 7 and 9, the vaginal speculum 1A according to the second embodiment has the same configuration as the vaginal speculum 1 according to the first embodiment, except that the first outer surface 111A and the second outer surface 211A are partially exposed from the first elastic body portion 50A or the second elastic body portion 60A, respectively. Therefore, only the structure different from the vaginal speculum 1 will be described below, and the same structure as the vaginal speculum 1 will not be described.

Fig. 7 is a perspective view of the vaginal speculum 1A as viewed from the first elastic body portion 50A side, and fig. 8 is an exploded perspective view showing the first flap portion 11A and the first elastic body portion 50A in an exploded manner. As shown in fig. 7, the substantially rectangular upper surface (a part of the first outer side surface 111A) of the first convex portion 112A is present on the surface of the first elastic body portion 50A. As shown in fig. 8, the first convex portion 112A is formed by partially raising the first outer side surface 111A, and has a first side peripheral portion 113A. The first elastic body portion 50A is disposed on the first outer side surface 111A excluding the first convex portion 112A so as to be in close contact with the first side peripheral portion 113A. Therefore, as shown in fig. 8, the first elastic body portion 50A is formed with an opening 501A having substantially the same shape as the planar shape defined by the first side peripheral portion 113A. As shown in fig. 7, the first side peripheral portion 113A is not visible from the outside of the vaginal speculum 1A. The first elastic body portion 50A is disposed so that the surface thereof is flush with the upper surface of the first convex portion 112A.

According to this configuration, when the rear portion 10A (except for the lock member 30 or the protruding member 31) and the first elastic body portion 50A are molded by the two-color molding described above, the secondary mold can be formed such that the first convex portion 112A contacts the inner wall of the secondary mold. When the raw material of the elastomer is injected into the secondary mold in a state where the first convex portion 112A is brought into contact with the inner wall of the secondary mold, the raw material of the elastomer more easily spreads inside the secondary mold. This enables the first elastic body portion 50A to be formed more uniformly on the first outer side surface 111A excluding the first convex portion 112A, and the integrity of the first flap portion 11A and the first elastic body portion 50A can be further improved.

Fig. 9 is a perspective view of the vaginal speculum 1A as viewed from the second elastic body portion 60A, and fig. 10 is an exploded perspective view showing the structure of the second flap portion 21A and the second elastic body portion 60A in an exploded manner. As shown in fig. 9, the substantially rectangular upper surface (a part of the second outer side surface 211A) of the second projection 212A is present on the surface of the second elastic body portion 60A. As shown in fig. 10, the second convex portion 212A is formed by partially raising the second outer side surface 211A, and has a second side peripheral portion 213A. The second elastic body portion 60A is disposed on the second outer side surface 211A excluding the second convex portion 212A so as to be in close contact with the second side peripheral portion 213A. Therefore, as shown in fig. 10, the second elastic body portion 60A has an opening 601A having substantially the same shape as the planar shape defined by the second side peripheral portion 213A. As shown in fig. 9, the second peripheral portion 213A is not visible from the outside of the vaginal speculum 1A. The second elastic body portion 60A is disposed so that the surface thereof is flush with the upper surface of the second convex portion 212A.

According to this configuration, when the front portion 20A (except for the lock member 30 or the protruding member 31) and the second elastic body portion 60A are molded by the two-color molding described above, the secondary mold can be formed such that the second convex portion 212A contacts the inner wall of the secondary mold. When the raw material of the elastomer is injected into the secondary mold in a state where the second convex portion 212A is brought into contact with the inner wall of the secondary mold, the raw material of the elastomer more easily spreads inside the secondary mold. This enables the second elastic body portion 60A to be more uniformly formed on the second outer side surface 211A excluding the second convex portion 212A, and the second flap portion 21A and the second elastic body portion 60A to have further improved integrity.

<2 > action of vaginal speculum

Next, the operation of the vaginal speculum according to the embodiment of the present invention will be described with reference to the drawings. The operation of the vaginal speculum 1A is the same as that of the vaginal speculum 1, and therefore the vaginal speculum 1 will be described as an example.

Fig. 1 shows a state in which the second handle section 22 is not rotated relative to the first handle section 12 in the vaginal speculum 1. That is, the state shown in fig. 1 is a closed state in which the first fin portion 11 and the second fin portion 21 are butted in a facing manner, and the vaginal speculum 1 is closed without a gap therebetween. In the closed position, the first and second handle portions 12, 22 are only open at an angle of about (α - β) relative to the axis A1. The plurality of projections 311 of the projecting member 31 are positioned between the second handle portion 22 and the first handle portion 12 without passing through the through hole 120 of the first handle portion 12 from the front to the rear.

The user inserts the first flap portion 11 and the first elastic body portion 50 together with the second flap portion 21 and the second elastic body portion 60 into the vaginal cavity while keeping the vaginal speculum 1 in the closed state. The first tab portion 11, the first elastomer portion 50, the second tab portion 21, and the second elastomer portion 60 are inserted into the vaginal cavity at the appropriate locations.

The user then rotates the second handle portion 22 relative to the first handle portion 12. The second flap portion 21 is separated from the first flap portion 11 in association with the relative rotation of the second handle portion 22, and rotates relative to the first flap portion 11. As a result, a gap is formed between the first fin portion 11 and the second fin portion 21, and the vaginal speculum 1 is opened as shown in fig. 6, and the vaginal cavity is expanded. When the user relatively rotates the second handle portion 22, the user can rotate the second handle portion 22 by grasping the lock member 30 of the first handle portion 12 and the concave-convex portion 221 of the second handle portion 22 and bringing the second handle portion 22 close to the first handle portion 12.

The protrusion 311 of the protrusion member 31 passes through the through hole 120 of the first handle 12 from the front to the rear as the second handle 22 approaches the first handle 12. The user can use a lock mechanism including the lock member 30 and the projecting member 31 in order to fix the appropriate relative rotational position of the second handle portion 22. More specifically, in the state shown in fig. 6, when the user slides the lock member 30 toward the housing portion 13, the pair of rod-shaped portions 301, 301 of the lock member 30 are inserted between the adjacent protrusions 311 and 311 of the protrusion member 31. That is, the lock member 30 engages with the protrusion 311. Thereby, the position of the projecting member 31 (second handle portion 22) is fixed with respect to the first handle portion 12, and the vaginal speculum 1 is in the locked state as shown in fig. 11 and 13.

The projecting member 31 has a plurality of projections 311. Thus, the user of the vaginal speculum 1 can select the relative rotational position of the second fin portion 21 to be locked in stages. The vaginal speculum 1 of the present embodiment is configured such that the first handle portion 12 and the second handle portion 22 come into contact with each other when the second blade portion 21 is rotated to the maximum. At this time, the angle formed by the first handle portion 12 and the second handle portion 22 is 0 degree with respect to the axis a1 (see fig. 12).

In the open state of the vaginal speculum 1, the second flap portion 21 is rotated relative to the first flap portion 11 and is separated from the first flap portion 11. Thus, the user can observe the front of the vaginal speculum 1 through the frame portion 13 (see fig. 13).

When the locking member 30 is slid in a direction away from the frame portion 13 in the locked state of the vaginal speculum 1, the locked state of the vaginal speculum 1 is released. That is, the engagement state between the lock member 30 and the projection 311 having the projection member 31 is released, and the second handle section 22 can be rotated relative to the first handle section 12. When the user relatively rotates the second handle portion 22 so as to separate from the first handle portion 12, the second flap portion 21 relatively approaches the first flap portion 11 while rotating in conjunction therewith. By relatively rotating the second handle portion 22 until the second flap portion 21 comes into contact with the first flap portion 11, the vaginal speculum 1 shown in fig. 1 can be returned to the closed state.

<3. feature >

As described above, in the vaginal speculum 1, the first elastic body portion 50 and the second elastic body portion 60 are disposed on the first outer surface 111 of the first fin portion 11 and the second outer surface 211 of the second fin portion 21, which are portions to be inserted into the vaginal cavity, respectively. When the first and second tab portions 11, 21 are inserted into the vaginal canal, the first and second elastomeric portions 50, 60 prevent the first and second outer sides 111, 211 of the first and second tab portions 11, 21 from contacting the inner wall of the vaginal canal. Accordingly, the first and second elastic body portions 50 and 60 made of elastic material alleviate the sensation of coolness, pain, and foreign body sensation caused by the first and second outer side surfaces 111 and 211 of the first and second fin portions 11 and 21 contacting the inner wall of the vaginal cavity.

In addition, in the vaginal speculum 1A, the first elastic body portion 50A is disposed on the first outer side surface 111A excluding the first convex portion 112A, and the second elastic body portion 60A is disposed on the second outer side surface 211A excluding the second convex portion 212A. Accordingly, the first outer side surface 111A and the second outer side surface 211A are prevented from being in full contact with the inner wall of the vaginal cavity, and the sensation of coolness, pain, and foreign body sensation generated by the entire first outer side surface 111A and the second outer side surface 211A being in contact with the inner wall of the vaginal cavity are greatly reduced.

In the vaginal speculum 1, the relative rotational position of the second blade portion 21 with respect to the first blade portion 11 can be locked by a lock mechanism including the lock member 30 and the projecting member 31. Thus, the user does not need to keep the relative rotational position of the second blade portion 21, and the workability of the vaginal speculum 1 is improved. The same applies to the vaginal speculum 1A.

In a conventional vaginal speculum, a screw-type locking mechanism including a bolt and a nut is used as a locking mechanism for maintaining an open state of the vaginal speculum. In some screw-type locking mechanisms, screw teeth of a bolt and a nut are easily disengaged and cannot move due to mutual engagement. In addition, in the screw type locking mechanism, it is necessary to rotate the nut to move to an appropriate position when locking is performed, and to rotate the nut again to move the same distance when unlocking, so that a normal operation is complicated. However, according to the locking mechanisms of the vaginal speculum 1 and the vaginal speculum 1A, the locking and unlocking operation can be performed by sliding the locking member 30 in the radial direction by a predetermined distance regardless of the rotational position (rotational angle). Therefore, the locking mechanisms of the vaginal speculum 1 and the vaginal speculum 1A are easy for the user to operate.

The locking member 30 and the protruded member 31 are soft resin products, have elasticity, and are easily elastically deformed. Therefore, the operation of engaging or disengaging the lock member 30 and the protrusion member 31 is facilitated. Further, the hand of the user feels soft and can be given a comfortable feeling.

In addition, when using the vaginal speculum 1, the user mainly grips around the locking member 30 of the first handle section 12. The lock member 30 is made of a soft resin product, and thus is not likely to slip against the hand of the user, and can be appropriately operated. Further, since the concave-convex portion is formed on the rear surface of the lock member 30 and the concave-convex portion 221 is also formed on the second handle portion 22, the gripping performance of the vaginal speculum 1 is improved. The same applies to the vaginal speculum 1A.

The rear surface of the main body 300 of the lock member 30 is formed to be gently concave toward the vicinity of the central portion in a side view. This makes it easy for the user to catch the fingers on the locking member 30, and enables smooth grasping of the vaginal speculum 1 and the vaginal speculum 1A and operation of the locking mechanism.

<4. modified example >

The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist thereof. For example, the following modifications can be made.

<4-1>

In the above embodiment, the first portion and the second portion are configured in a positional relationship in which the first handle portion 12, the second handle portion 22, the second flap portion 21, and the first flap portion 11 are arranged clockwise with the axis a1 as a reference. However, as long as the first handle portion 12 and the second handle portion 22 can be relatively rotated and the first wing portion 11 and the second wing portion 21 can be relatively rotated away from or closer to each other in conjunction with the rotation, the configurations of the first portion and the second portion are not limited to the rear portion 10 and the front portion 20 described above. For example, the first portion and the second portion may be arranged in a positional relationship such that the second handle portion 22, the first handle portion 12, the second fin portion 21, and the first fin portion 11 are arranged clockwise with respect to the axis a 1.

<4-2>

In the above embodiment, the rear portion 10 and the front portion 20 except for the locking member 30 and the protruded member 31 are respectively formed of hard resin. However, the rear portion 10 and the front portion 20 may also be formed of metal. In addition, the rear portion 10 and the front portion 20 may be formed of different materials, respectively.

<4-3>

In the above embodiment, the locking member 30 and the protruded member 31 are respectively soft resin products. However, the lock member 30 and the projecting member 31 may be formed of a hard resin or the like. Further, the locking member 30 and the projecting member 31 may be formed of different materials.

<4-4>

In the above embodiment, the first portion (rear portion 10) has the locking member 30, and the second portion (front portion 20) has the protruding member 31. However, it is also possible that the first portion (rear portion 10) has the protruding member 31 and the second portion (front portion 20) has the locking member 30.

<4-5>

The rear portion 10 and the first elastic body portion 50 of the first embodiment may be replaced with the rear portion 10A and the first elastic body portion 50A of the second embodiment. The front portion 20 and the second elastic body portion 60 of the first embodiment may be replaced with the front portion 20A and the first elastic body portion 60A of the second embodiment. That is, the vaginal speculum may be configured such that the first convex portion 112A or the second convex portion 212A is formed only in one of the rear portion 10 and the front portion 20.

Description of the reference numerals

1. 1a … vaginal speculum; 10. 10a … rear part (first part); 11. 11a … first flap portion; 12 … a first handle portion; 13 … a frame body part; 20. 20a … front part (second part); 21. 21a … second flap portion; 22 … a second handle portion; 30 … locking member; 31 … has a protruding part; 50. a 50a … first elastomer portion; 60. 60a … second elastomer portion; 111. 111a … first outer side; 112a … first projection; 113a … first side peripheral portion; 211. 211a … second outer side; 212a … second projection; 213a … second side peripheral portion.