TW202306527A - Vaginal dilator which can prevent the screw rod from turning relative to the grip handle - Google Patents

Abstract

A vaginal dilator comprises an upper support member, a lower support member, a screw rod and a screw nut. A first handle part is extended downwards from the upper support member, and a second handle part is extended downwards from the lower support member. The second handle part is provided with a limit groove. The limit groove includes an embedding slot and a plurality of buckle slots. The embedding slot has at least one slot limit surface. The screw rod has a head part, a rod part, and a plurality of convex buckles. The head part is embedded in the embedding slot. The head part has at least one head limit surface corresponding to at least one slot limit surface. The convex buckles are protruded from the outer periphery of the head part and buckled in the buckle slots respectively. The rod part extends from the head part toward the first handle part. The screw nut is screwed and connected to the rod part of the screw rod so that the screw rod is firmly fixed in the limit groove of the second handle part. The circumference of the embedding slot has two slot limit surfaces and two slot arc surfaces. The two slot limit surfaces are set at intervals. The two slot arc surfaces are respectively connected to two opposite ends of the two slot limit surfaces. The limit groove has two buckle slots. The two buckle slots are respectively located on the outer sides of the two slot arc surfaces and communicated with the embedding slots.

Description

vaginal dilator

The invention relates to a disposable diagnosis and treatment device, in particular to a vaginal dilator which can prevent the screw rod from rotating relative to the handle.

The existing vaginal dilator mainly includes an upper support member, a lower support member, a screw rod, and a nut. The upper support member and the lower support member are pivotally connected to each other, and respectively extend a handle downward, the screw rod is fixed to the handle of the lower support member, and extends toward the handle of the upper support member and passes through the upper support The nut is screwed with the screw rod, and selectively abuts against the handle of the upper support, so as to limit the relative opening and closing positions of the upper and lower supports.

In order to avoid rotating the nut to adjust the relative position of the nut relative to the screw rod, the screw rod rotates relative to the lower support member. A slot corresponding in shape to the head of the screw rod is recessed in the upper part, so that the head of the screw rod is clamped in the slot, so as to prevent the screw rod from rotating relative to the lower supporting member.

However, since the screw and the lower support are usually plastic injection parts, the head of the screw or the slot of the lower support is easily deformed during injection molding, so that the head of the screw cannot be firmly clamped. In the socket of the lower support member, the head of the screw rod can be easily loosened and separated from the socket, or the screw rod can be easily rotated relative to the lower support member, which needs to be improved.

In view of the above shortcomings, the main purpose of the present invention is to provide a vaginal dilator whose screw rod can be stably fixed to the handle of the lower supporting member.

In order to achieve the above object, the vaginal dilator of the present invention comprises: an upper support member, the upper support member extends downwards a first handle; A lower support member, the lower support member and the upper support member are pivotally connected to each other, and a second handle extends downwards, the second handle is located on one side of the first handle, and the second handle includes a first A side, a second side, and a limiting groove, the first side is far away from the first handle, the second side is adjacent to the first handle, the limiting groove includes an embedding groove and a plurality of buckle grooves, The embedding groove is recessed on the first side surface of the second handle, the end surface of the embedding groove far away from the first side surface forms a distance from the second side surface, the peripheral surface of the embedding groove has at least one embedding groove limiting surface, the Some buckle grooves are formed at intervals on the outer circumference of the slot, and form openings on the peripheral surface of the slot, and communicate with the slot. The first side surfaces of the two handles form a distance; A screw, the screw has a head, a rod, and a plurality of convex buckles, the head is embedded in the slot of the limiting groove, and the peripheral surface of the head has a position corresponding to at least one slot. The location and shape of at least one head limiting surface, the protruding buttons protrude from the outer periphery of the head at intervals, and are respectively buckled in the buckling grooves of the limiting groove, and the rod is separated from the head extending toward the first handle, out through the second handle and the first handle; and A nut threadedly connected to the shank of the screw rod and selectively abuts against the first shank.

With the above-mentioned technical features, when the vaginal dilator of the present invention is assembled, the head of the screw rod can be pressed with force, so that the protruding buckles of the screw rod can be snapped into the position-limiting grooves of the second handle respectively. In the buckle groove, limit the position of the screw rod in the length direction to prevent the screw rod from falling out of the limit groove. The position surface can prevent the screw rod from rotating relative to the second handle, and the screw rod can be easily assembled and firmly fixed in the limiting groove of the second handle part.

Please refer to Fig. 1 and Fig. 2, the preferred embodiment of the vaginal dilator of the present invention, it comprises an upper support 10, a lower support 20, a screw rod 30, and a nut 40, the upper support 10, the The lower supporting member 20, the screw rod 30, and the nut 40 are all made of plastic material.

The upper support 10 and the lower support 20 are pivotally connected to each other, and the front sides of the upper support 10 and the lower support 20 respectively form an upper jaw 11 and a lower jaw 21 that can be opened and closed relatively. The upper support 10 A first handle 13 is extended downwards, and a second handle 23 is extended downwards from the lower support member 20. The second handle 23 is located on one side of the first handle 13. In this preferred embodiment, The second handle 23 is located on the front side of the first handle 13, the first handle 13 and the second handle 23 are held by the user, and the first handle 13 and the second handle can be pressed 23 moves relatively, so as to operate the opening and closing of the upper jaw 11 and the lower jaw 21 .

Please refer to FIG. 2 , FIG. 6 , and FIG. 7 , the second handle 23 has a first side 231 , a second side 232 , and a limiting groove 25 , and the first side 231 is far away from the first handle 13 , the second side is adjacent to the first handle 13, the limiting groove 25 includes a slot 252 and a plurality of buckle slots 255, the slot 252 is recessed on the first side 231 of the second handle 23, the The end surface of the slot 252 away from the first side 231 forms a distance from the second side 232 , the peripheral surface of the slot 252 has at least one slot limiting surface 253 , and the buckle slots 255 surround the slot 252 at intervals. Outer circumference, and form an opening on the peripheral surface of the insertion groove 252, and communicate with the insertion groove 252, and each buckle groove 255 is adjacent to the end surface of the first side 231 of the second handle 23 and the second handle of the second handle 23. One side 231 forms a distance; preferably, each buckle groove 255 forms an opening on the second side 232 of the second handle 23 .

Please refer to FIG. 2 to FIG. 5, and FIG. 8, the screw 30 has a head 31, a rod 33, and a plurality of convex buckles 32, the head 31 is embedded in the slot 252 of the limiting groove 25 The peripheral surface of the head 31 has at least one head limiting surface 312 corresponding to the position and shape of the at least one slot limiting surface 253, and the protruding buckles 32 are protruded on the outer periphery of the head 31 at intervals, and The buckle grooves 255 are respectively buckled in the limiting groove 25 , the rod portion 33 extends from the head portion 31 toward the first handle portion 13 , and passes through the second handle portion 23 and the first handle portion 13 , the second handle 23 is provided with a rod hole 24, the rod hole 24 runs through the second side 232 of the second handle 23 and the end surface of the socket 252, and communicates with the socket 252, the rod hole 24 The diameter of the circumscribed circle is smaller than the diameter of the circumscribed circle of the socket 252, the rod hole 24 forms a distance from the button grooves 255, the first handle 13 is provided with a perforation 14, and the rod 33 passes through the second handle The rod hole 24 of 23 and the through hole 14 of the first handle 13 pass through the first handle 13 .

Please refer to FIG. 1 and FIG. 2 , the nut 40 is screwed to the rod portion 33 of the screw rod 30 and selectively abuts against the first handle portion 13 to limit the upper support member 10 and the lower support member 20 relative to each other. opening and closing position.

In this preferred embodiment, please refer to FIG. 6 to FIG. 9 , the peripheral surface of the slot 252 has two slot limiting surfaces 253 and two arc-shaped surfaces 254 of the slot, and the two slot limiting surfaces 253 are arranged at intervals. , the two caulking groove arc surfaces 254 are respectively connected to opposite ends of the two caulking groove limiting surfaces 253, the limiting groove 25 has two buckle grooves 255, and the two buckle grooves 255 are respectively located on the two caulking groove arc surfaces 254, and communicate with the slot 252; please refer to Fig. 3 to Fig. 5, and Fig. 9, the peripheral surface of the head 31 of the screw 30 has two head limit surfaces 312 and two head arc surfaces 313, the The two head limit surfaces 312 respectively correspond to the positions of the two embedding groove limit surfaces 253, and the two head arc surfaces 313 are respectively connected to the opposite ends of the two head limit surfaces 312, and respectively correspond to the two embedding groove arc surfaces. 254 ; the screw 30 has two protruding buckles 32 , and the two protruding buckles 32 are respectively protruding from the arc-shaped surfaces 313 of the two heads, and are respectively buckled in the two buckle grooves 255 .

Preferably, as shown in FIG. The end face adjacent to the rod portion 33 has a length such that the length of each protruding button 32 is less than the length of the head 31, the length of each protruding button 32 is less than or equal to 2/3 times the length of the head 31 is greater than or equal to 1/3 3 times the length of the head 31.

Preferably, one end of each protruding button 32 adjacent to the rod 33 has a guide surface 322, and the guide surface 322 gradually approaches the peripheral surface of the head 31 toward the rod 33, so that the protruding button 32 is relatively It is easy to press into the socket 252 .

Please refer to Fig. 2 and Fig. 9, when assembling, the rod portion 33 of the screw rod 30 is inserted into the rod hole 24 of the second handle portion 23, and a force is applied to the head portion 31 of the screw rod 30, so that the screw rod 30 The protrusions 32 of the threaded rod 30 are pressed into the slots 252, and are buckled in the slots 255 respectively. The end face of the head 31 of the screw 30 adjacent to the rod 33 is limited by the end face of the slots 252, and the protrusions The end face of the buckle 32 away from the rod portion 33 is limited by the end face of the buckle grooves 255 adjacent to the first side surface 231 of the second handle 23, so as to limit the position of the screw rod 30 in the longitudinal direction, and allow the screw rod 30 not to Will fall out of the limiting groove 25, and further, because the head 31 of the screw rod 30 has a head limiting surface 312 corresponding to the shape and position of the slot limiting surface 253 of the slot 252, the screw rod can be avoided. 30 rotates relative to the second handle 23 ; thereby, the screw 30 can be easily assembled and firmly fixed in the limiting groove 25 of the second handle 23 .

10: Upper support 11: Upper jaw 13: The first handle 14: perforation 20: Lower support 21: Lower jaw 23:Second handle 231: first side 232: second side 24: rod hole 25: limit slot 252: slotting 253: Embedded groove limit surface 254: Embedded arc surface 255: button slot 30: screw 31: head 312: head limit surface 313: Head arc surface 32: Convex buckle 322: guide surface 33: stem 40: Nut

Fig. 1 is a perspective view of a preferred embodiment of the present invention. Fig. 2 is a schematic diagram of assembly of a preferred embodiment of the present invention. Fig. 3 is a partially enlarged three-dimensional appearance view of a screw rod in a preferred embodiment of the present invention. Fig. 4 is a partially enlarged side view of the screw rod of the preferred embodiment of the present invention. Figure 5 is an end view of the screw of the preferred embodiment of the present invention. Fig. 6 is a partially enlarged three-dimensional appearance view of the lower support member of the preferred embodiment of the present invention. Fig. 7 is a partially enlarged sectional perspective view of a lower support member in a preferred embodiment of the present invention. Fig. 8 is a partially enlarged three-dimensional appearance view of the lower support frame in a preferred embodiment of the present invention. Fig. 9 is a partially enlarged side sectional view of a preferred embodiment of the present invention.

10: Upper support

11: Upper jaw

13: First handle

14: perforation

20: Lower support

21: Lower jaw

23: Second handle

231: first side

25: limit slot

30: screw

31: head

32: Convex buckle

33: stem

40: Nut

Claims (6)

A vaginal dilator comprising: an upper support member, the upper support member extends downwards a first handle; A lower support member, the lower support member and the upper support member are pivotally connected to each other, and a second handle extends downwards, the second handle is located on one side of the first handle, and the second handle includes a first A side, a second side, and a limiting groove, the first side is far away from the first handle, the second side is adjacent to the first handle, the limiting groove includes an embedding groove and a plurality of buckle grooves, The embedding groove is recessed on the first side surface of the second handle, the end surface of the embedding groove far away from the first side surface forms a distance from the second side surface, the peripheral surface of the embedding groove has at least one embedding groove limiting surface, the Some buckle grooves are formed at intervals on the outer circumference of the slot, and form openings on the peripheral surface of the slot, and communicate with the slot. The first side surfaces of the two handles form a distance; A screw, the screw has a head, a rod, and a plurality of convex buckles, the head is embedded in the slot of the limiting groove, and the peripheral surface of the head has a position corresponding to at least one slot. The location and shape of at least one head limiting surface, the protruding buttons protrude from the outer periphery of the head at intervals, and are respectively buckled in the buckling grooves of the limiting groove, and the rod is separated from the head extending toward the first handle, out through the second handle and the first handle; and A nut threadedly connected to the shank of the screw rod and selectively abuts against the first shank. The vaginal dilator according to claim 1, wherein each buckle groove forms an opening on the second side of the second handle. The vaginal dilator as claimed in claim 2, wherein each protruding buckle has a guiding surface adjacent to the end of the rod portion of the screw rod. The vaginal dilator as described in claim 3, wherein the end of each protruding buckle away from the rod is flush with the end face of the head away from the rod, and the end of each protruding buckle adjacent to the rod is adjacent to the head. The end face of the portion has a length. The vaginal dilator according to any one of claims 1 to 4, wherein: The peripheral surface of the caulking groove has two said caulking groove limiting surfaces and two caulking groove arc surfaces, the two caulking groove limiting surfaces are arranged at intervals, and the two caulking groove limiting surfaces are respectively connected to the two caulking groove limiting surfaces opposite ends of The limit groove has two buckle grooves, and the two buckle grooves are respectively located on the outer sides of the arc surfaces of the two embedding grooves, and communicate with the embedding groove; The peripheral surface of the head of the screw has two head limit surfaces and two head arc surfaces, the two head limit surfaces respectively correspond to the positions of the two embedding groove limit surfaces, and the two head arc surfaces are respectively connected The opposite ends of the limiting surfaces of the two heads respectively correspond to the arc surfaces of the two embedding grooves; and The screw rod has two protruding buckles, the two protruding buckles protrude from the arc surfaces of the two heads respectively, and are respectively buckled in the two buckle grooves. The vaginal dilator as described in claim 5, wherein the second handle is provided with a rod hole, and the rod hole passes through the second side surface of the second handle and the end surface of the socket to communicate with the socket, the socket The diameter of the circumscribed circle of the rod hole is smaller than the diameter of the circumscribed circle of the socket, the rod hole forms a distance from the buckle grooves, the first shank is provided with a through hole, and the rod of the screw rod is passed through the rod of the second shank The hole and the perforation of the first handle pass through the first handle.

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