CN214907885U - Anti-injury scissors for cervical ring ligature - Google Patents

Abstract

The utility model discloses a prevent hindering and cut for palace neck ring ligature, its longer cuts the body and can conveniently stretch into the vagina and press close to the palace neck mouth, and the hook portion of preventing hindering the scissors front end can catch on palace neck ring ligature smoothly, is difficult for causing the injury to the pregnant woman, and can cut off palace neck ring ligature completely under the prerequisite of not injuring the pregnant woman. The key points of the technical scheme are as follows: including the handle with can stretch into the body of cutting in the vagina, cut the body tip and be equipped with tear-off mechanism, tear-off mechanism includes barb portion, first sanction piece and second sanction piece, barb portion and cut and form the chamber of trimming between the body, the tip of barb portion and cut leave the breach that is used for palace neck ring ligature to get into between the body, first sanction piece and second sanction piece all with cut body swivelling joint, first sanction piece and second are cut and are equipped with reverse transmission structure between the piece, cut the inside control mechanism who is used for controlling the rotation of sanction piece and resets that still is equipped with of body.

Description

Anti-injury scissors for cervical ring ligature

Technical Field

The utility model relates to the field of medical equipment, specifically a prevent hindering and cut for palace neck ring ligature.

Background

The cervical cerclage is a surgery mode commonly used for preventing middle-term gestational loss and premature birth of cervical insufficiency, when a puerpera has a premature birth symptom, a doctor can prick the periphery of a cervical orifice of the puerpera by using a surgical thread in order to shrink the cervical orifice, repair and establish normal cervical orifice shape and function, enable pregnancy to be maintained to the full term or enable a fetus to survive and prevent the premature birth of the infant.

Removing the cervical ring ligature at 37-38 weeks of gestation or before delivery, and opening the vagina of the lying-in woman by using a vaginal dilator when removing the cervical ring ligature; then holding forceps or oval forceps (a kind of forceps) to clamp one end of the thread from the outer wall of the cervix, and then lifting upwards; finally, the thread is cut off by inserting scissors.

However, the existing stitch removing mode has the following defects:

1. the difficulty of finding and clamping the cervical ring ligature by using tweezers or oval forceps is high, and severe pain can be brought to the puerpera when the cervical ring ligature is clamped and lifted.

2. The position of the cervical orifice is deep, the scissors with sharp tips need to be extended into the vagina, the visual field inside the vagina is poor, and when the scissors are used, the sharp tips of the scissors easily prick the vaginal wall to hurt a lying-in woman.

3. The cervical ring ligature is cut, and if the scissors with only one cutting piece are used, the cervical ring ligature cannot be effectively cut.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that exists among the above-mentioned background art, provide a prevent hindering and cut for palace neck ring ligature, its longer cut body can conveniently stretch into press close to the palace neck mouth in the vagina, prevent hindering the hook portion that cuts the front end and can catch on palace neck ring ligature smoothly, be difficult for causing the injury to the pregnant woman, and can cut off palace neck ring ligature completely under the prerequisite of not injuring the pregnant woman.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

an anti-injury scissors for cervical ring ligature, which comprises a handle and a scissors body capable of extending into vagina, wherein the end part of the scissors body is provided with a ligature detaching mechanism, the stitch removing mechanism comprises an inverted hook part, a first cutting piece and a second cutting piece, a stitch cutting chamber is formed between the inverted hook part and the scissors body, a notch for the cervical loop to be tied is reserved between the end part of the inverted hook part and the scissors body, the first cutting piece and the second cutting piece are both rotationally connected with the scissors body, the rotating axes of the first cutting piece and the second cutting piece are the same, a reverse transmission structure is arranged between the first cutting piece and the second cutting piece, the first cutting piece can drive the second cutting piece to rotate in the direction opposite to the direction of the first cutting piece through the reverse transmission structure, when the first cutting piece and the second cutting piece are unfolded, the first cutting piece and the second cutting piece are respectively positioned at two sides of the thread cutting chamber, and a control mechanism for controlling the rotation and the reset of the cutting pieces is also arranged in the cutting body.

Preferably, reverse drive structure includes gear, driving gear and fluted disc, the gear with first piece fixed connection of cutting out, and the gear is the same with the first rotatory axle center of cutting out the piece, piece fixed connection is cut out with the second to the fluted disc, and the rotatory axle center of cutting out the piece is the same with the second to the fluted disc, the driving gear is located between gear and the fluted disc, and meshes with gear and fluted disc homogeneous phase, and the rotatory axle center of driving gear is cut the body relatively fixedly simultaneously, and when the gear was rotatory, the accessible driving gear drove the fluted disc and the opposite direction rotation of gear steering.

Preferably, the control mechanism comprises a handle, a transmission structure and a return spring for returning the cutting piece, the transmission structure is connected with the cutting piece and the handle, and the handle controls the movement of the cutting piece through the transmission structure.

Preferably, the transmission structure comprises a connecting rod and a lever, two end parts of the connecting rod are respectively and rotatably connected with the first cutting piece and the end part of the lever, and the other end of the lever is fixedly connected with the handle.

Preferably, the barb part comprises a first cutting piece and a second cutting piece which are arranged in a matched mode, and the barb part comprises a barb part and a limiting structure.

Preferably, one end of the scissor body close to the barb part protrudes outwards to form a boss, and the farthest end of the outward protrusion of the boss does not exceed the end part of the barb part.

Preferably, the barb is provided with a protective sheath for preventing scratching of the vaginal wall.

Compared with the prior art, the anti-injury scissors for the cervical ring ligature adopting the technical scheme have the following beneficial effects:

firstly, adopt the utility model discloses a prevent hindering and cut for palace neck ring ligature, for current tweezers or oval pincers, this prevent hindering and cut body longer, can conveniently stretch into the vagina in order to press close to the cervical orifice and carry out the trimming operation.

The barb parts at the ends of the scissors bodies can smoothly hook the cervical ring for tying under the conditions of poor visual field and small operation space, and forceps or oval forceps are not required to be used for clamping and picking, so that the suture removing operation time is favorably shortened, and the pain of a puerpera is favorably relieved.

When the barb part hooks the cervical ring to tie the thread, the cutting piece can be directly operated to cut the thread without going deep into the scissors to cut the thread, so that the thread inserting step is simplified, and the problem that the scissors are easy to damage the vaginal wall is solved.

Fourthly, can guarantee to cut off the cervical collar ligature completely through controlling two cutting sheets, in the preferred scheme, limit structure can prevent that first cutting sheet or second cutting sheet from rolling out from barb portion edge to the scratch lying-in woman vagina.

Fifthly, the lug boss at the front end of the scissors body enables the part (the gap between the end part of the barb part and the scissors body) for hooking the thread to protrude outwards for a certain distance, so that the probability that the barb part hooks the cervical ring for binding the thread can be improved during thread hooking.

Sixthly, the protective sleeve at the end of the barb can prevent the end of the barb from scratching the vaginal wall.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the anti-injury scissors for cervical ring ligature of the utility model.

Fig. 2 is a schematic structural diagram of the reverse transmission structure in this embodiment.

Fig. 3 is a partially enlarged schematic view of the present embodiment.

Fig. 4 is a partially enlarged schematic view of the transmission structure in the present embodiment.

Reference numerals: 1. a handle; 2. cutting the body; 20. a first rotating shaft; 21. a second rotating shaft; 22. a boss; 3. a wire detaching mechanism; 30. a barb portion; 301. a protective sleeve; 31. a first cutting blade; 32. a second cutting blade; 33. a trimming chamber; 34. a notch; 4. a reverse transmission structure; 40. a gear; 41. a transmission gear; 42. a fluted disc; 5. a control mechanism; 50. a handle; 51. a transmission structure; 510. a connecting rod; 511. a lever; 512. a fulcrum; 52. a return spring; 6. a limiting structure; 7. ligature of cervical ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The anti-injury scissors for the cervical ring ligature shown in fig. 1 to 3 comprise a handle 1 and a scissors body 2 which can extend into a vagina, wherein a thread detaching mechanism 3 is arranged at the end part of the scissors body 2, the thread detaching mechanism 3 comprises a barb part 30, a first cutting piece 31 and a second cutting piece 32, a thread cutting chamber 33 is formed between the barb part 30 and the scissors body 2, when the first cutting piece 31 and the second cutting piece 32 are unfolded back to back, the first cutting piece 31 and the second cutting piece 32 are respectively positioned at two sides of the thread cutting chamber 33, and a notch 34 for the cervical ring ligature 7 to enter is reserved between the end part of the barb part 30 and the scissors body 2.

The shear body 2 is provided with a first rotating shaft 20 and a second rotating shaft 21, the first cutting blade 31 and the second cutting blade 32 are both rotatably connected with the first rotating shaft 20, a reverse transmission structure 514 is arranged between the first cutting blade 31 and the second cutting blade 32, the reverse transmission structure 514 comprises a gear 40, a transmission tooth 41 and a fluted disc 42, the gear 40 is fixedly connected with the first cutting blade 31, the rotation axis of the gear 40 is the same as that of the first cutting blade 31, the fluted disc 42 is fixedly connected with the second cutting blade 32, the rotation axis of the fluted disc 42 is the same as that of the second cutting blade 32, the transmission tooth 41 is positioned between the gear 40 and the fluted disc 42 and is meshed with the gear 40 and the fluted disc 42, the transmission tooth 41 is rotatably connected with the second rotating shaft 21, when the gear 40 rotates, the fluted disc 42 and the gear 40 are driven by the transmission tooth 41 to rotate in opposite directions, so as to realize cutting work that the first cutting blade 31 and the second cutting blade 32 rotate oppositely, and a reverse rotation reset operation.

The inside of the scissors body 2 is provided with a control mechanism 5 for controlling the rotation and the return of the cutting piece, the control mechanism 5 comprises a handle 50, a transmission structure 51 and a return spring 52 for returning the cutting piece, the transmission structure 51 comprises a connecting rod 510, a lever 511 and a fulcrum 512, two ends of the connecting rod 510 are respectively connected with the first cutting piece 31 and the end of the lever 511 in a rotating way, the other end of the lever 511 is fixedly connected with the handle 50, the fulcrum 512 is fixedly arranged on the scissors body 2, the lever 511 can be rotated by the handle 50 to drive the connecting rod 510 to move up and down to rotate the first cutting piece 31, two ends of the return spring 52 are respectively fixedly connected with the lower edge of the first cutting piece 31 and the inner side of the scissors body 2, under the normal state, the spring provides a downward pulling force for the first cutting piece 31, so that the first cutting piece 31 and the second cutting piece 32 are folded in the scissors body 2, and the cutting line cavity 33 leaves a space for the cervical ring binding line 7 to enter, the handle 50 is pressed to rotate the first cutting piece 31 and the second cutting piece 32 toward each other to cut the cervical cerclage wire 7, and the return spring 52 returns the first cutting piece 31 and the second cutting piece 32 after the handle 50 is released.

The wire cutting device further comprises a limiting structure 6 for preventing the second cutting blade 32 from rotating out of the barb portion 30, the limiting structure 6 is implemented as an arc-shaped blocking piece, the blocking piece is fixedly connected with one end, far away from the wire cutting chamber 33, of the barb portion 30, and meanwhile, the radian of the blocking piece corresponds to the outline of the knife back of the second cutting blade 32.

One end of the scissor body 2 close to the barb part 30 protrudes outwards to form a boss 22, and the farthest end of the boss 22 protruding outwards does not exceed the end part of the barb part 30.

The barb part 30 is provided with a protective sleeve 301 for preventing the vaginal wall from being scratched, and the protective sleeve 301 is made of a silica gel material.

The above description is a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principles of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims (7)

1. A prevent hindering and cut for palace neck ring ligature which characterized in that: including handle (1) and can stretch into cutting body (2) in the vagina, cut body (2) tip and be equipped with tear line mechanism (3) open, tear line mechanism (3) including barb portion (30), first cutting piece (31) and second cutting piece (32), barb portion (30) and cut and form between the body (2) and cut line cavity (33), the tip of barb portion (30) and cut leave breach (34) that are used for palace neck ring ligature (7) to get into between the body (2), first cutting piece (31) and second cutting piece (32) all with cut body (2) swivelling joint, and the rotatory axle center of first cutting piece (31) and second cutting piece (32) is the same, be equipped with reverse transmission structure (514) between first cutting piece (31) and the second cutting piece (32), through reverse transmission structure (514) first cutting piece (31) can drive second cutting piece (32) toward the rotatory opposite direction of first cutting piece (31), when the first cutting piece (31) and the second cutting piece (32) are unfolded back to back, the first cutting piece (31) and the second cutting piece (32) are respectively located on two sides of the thread cutting chamber (33), and a control mechanism (5) used for controlling the rotation and the resetting of the cutting pieces is further arranged inside the cutting body (2).

2. The cut preventing scissors for cervical ring ligature according to claim 1, characterized in that: reverse drive structure (514) include gear (40), driving gear (41) and fluted disc (42), gear (40) and first cutting piece (31) fixed connection, and gear (40) are the same with the rotatory axle center of first cutting piece (31), fluted disc (42) and second cutting piece (32) fixed connection, and fluted disc (42) is the same with the rotatory axle center of second cutting piece (32), driving gear (41) are located between gear (40) and fluted disc (42), and with gear (40) and fluted disc (42) homogeneous phase meshing, the relative body (2) of cutting of rotatory axle center of driving gear (41) is fixed simultaneously, and when gear (40) were rotatory, accessible driving gear (41) drive fluted disc (42) and gear (40) turn to opposite direction rotation.

3. The cut preventing scissors for cervical ring ligature according to claim 1, characterized in that: the control mechanism (5) comprises a handle (50), a transmission structure (51) and a return spring (52) for resetting the cutting piece, the transmission structure (51) is connected with the cutting piece and the handle (50), and the handle (50) controls the movement of the cutting piece through the transmission structure (51).

4. The cut preventing scissors for cervical ring ligature according to claim 3, characterized in that: the transmission structure (51) comprises a connecting rod (510) and a lever (511), two ends of the connecting rod (510) are respectively and rotatably connected with the first cutting piece (31) and the end of the lever (511), and the other end of the lever (511) is fixedly connected with the handle (50).

5. The cut preventing scissors for cervical ring ligature according to claim 1, characterized in that: and the limiting structure (6) is used for preventing the first cutting piece (31) or the second cutting piece (32) from rotating out of the barb part (30).

6. The cut preventing scissors for cervical ring ligature according to claim 1, characterized in that: one end of the shear body (2) close to the barb part (30) protrudes outwards to form a boss (22), and the farthest end of the outward protrusion of the boss (22) does not exceed the end part of the barb part (30).

7. The cut preventing scissors for cervical ring ligature according to claim 1, characterized in that: the barb part (30) is provided with a protective sleeve (301) for preventing the vaginal wall from being scratched.

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