CN110625647A

CN110625647A - Shearing device for shearing contraceptive ring tail fibers

Info

Publication number: CN110625647A
Application number: CN201911034183.8A
Authority: CN
Inventors: 于春鹏; 田新涛; 石磊; 王松; 李群; 常帅
Original assignee: Affiliated Hospital of University of Qingdao
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2019-12-31
Anticipated expiration: 2039-10-29
Also published as: CN110625647B

Abstract

The invention provides a shearing device for shearing a contraceptive ring tail fiber, which comprises two shear bodies, a first shaft and shear arms, wherein the first shaft is used for rotatably connecting the two shear bodies, each shear body comprises a joint part, a shear head and a clamping handle part, the shear heads and the clamping handle parts are respectively positioned at the front end and the rear end of the joint part, the first shaft is positioned on the joint part, and the clamping handle parts are used for driving the shear heads to rotate around the first shaft; the opposite inner side surfaces of the scissor heads of the two scissor bodies are respectively provided with a first clamping head and a second clamping head, and when the first clamping head is abutted and clamped with the second clamping head, a gap is formed between the two scissor heads; the scissors arm comprises a scissors handle and a main blade, the main blade is stacked on one scissors head, the other scissors head is provided with an auxiliary blade with a blade line, the joint part is provided with a second shaft, and the scissors handle is used for driving the main blade to rotate around the second shaft towards the auxiliary blade. According to the invention, the tail fibers are clamped firstly by the two paired scissors bodies, and then the tail fibers with certain length are cut off and reserved by the main blade and the auxiliary blade, so that the structure is simple, and the adjustment is convenient.

Description

Shearing device for shearing contraceptive ring tail fibers

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a shearing device for shearing a contraceptive ring tail fiber.

Background

The placement of intrauterine devices is one of the commonly used contraceptive methods for women, and in clinical practice, the types of intrauterine devices are increasing, and are gradually replaced by new intrauterine devices such as Aimu IUD, Ginie IUD, maternal Lee and the like, which are the original ring shape, uterus shape, round uterus shape and the like. Most of the novel intrauterine devices are provided with tail fibers which are long, a part of the tail fibers needs to be removed in the vagina after the intrauterine devices are placed, and because the vagina is long and narrow, the tail fibers which are parallel to the tail fibers and smooth are not easy to cut off after the common scissors extend into the vagina.

Many intrauterine devices/devices are provided with tail fibers, the length of the tail fibers directly influences the feeling of women of childbearing age, the women of childbearing age feel uncomfortable due to overlong tail fibers, and the tail fibers of the intrauterine devices are dislocated to the uterine cavity due to overlong tail fibers, so that the device is broken during device taking, and the difficulty in device taking is caused. For people who just learn the ring-setting operation, the visual measurement of the length of the tail fiber is not very accurate, and the tail fiber is easily too long or too short.

In order to solve the technical problem, for example, chinese patent application CN200520081607.3 discloses a pair of special cutting nippers for contraceptive device tail filament, which comprises two cutting bodies, each cutting body is divided into a cutting opening, a cutting neck and a cutting handle, the two cutting bodies are cross-connected by a shaft pin, the cutting handle on one side of the shaft pin is longer, the cutting neck on the other side is shorter, the cutting opening is perpendicular to the cutting bodies, and the two cutting openings are engaged in opposite directions. The cutting opening of the special cutting nippers for the intrauterine device tail wire in the prior art is perpendicular to the cutting body to bite the intrauterine device tail wire, but the cutting of tail wires with different lengths can not be prepared, and the requirements on medical care personnel are harsh.

For another example, chinese patent application CN201320075613.2 discloses a pair of novel scissors suitable for a contraceptive device with a tail fiber, which comprises two handles hinged to each other, wherein the front end of each handle is fixedly connected with a scissors handle, the scissors handle and the handles are integrated into a whole, the outer side surface of the scissors handle is provided with scale marks, the scissors handle is provided with a chute along the length direction thereof, the cross section of the chute is in an inverted T shape, a pointer is slidably connected in the chute, the cross section of the pointer corresponds to the chute, the pointer points to the scale marks, the middle part of the pointer is in threaded connection with a fixing screw, and the inner end of the fixing screw abuts against the bottom wall of the chute. The defect of the prior art is that the contraceptive ring needs to be pulled in the process of cutting off the tail filament, so that the contraceptive ring is easy to loosen; in addition, the scale marks are arranged at the front end of the scissors, and are difficult to distinguish in the using process.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a shearing device for shearing the tail fiber of the intrauterine device, which clamps the tail fiber through two paired shearing bodies, and then cuts and retains the tail fiber with a certain length through a main blade and an auxiliary blade.

In order to achieve the above object, the present invention provides a cutting device for cutting a fiber of an intrauterine device, comprising:

two scissor bodies in pair;

the first shaft is used for rotatably connecting the two scissor bodies; and

a scissor arm;

the scissors body comprises a combination part, a scissors head positioned at the front end of the combination part and a clamping handle positioned at the rear end of the combination part, a first shaft is positioned on the combination part, and the clamping handle is used for driving the scissors head to rotate around the first shaft;

wherein, the inner side surfaces of the two scissor heads which are opposite to each other are respectively provided with a first clamping head and a second clamping head, and when the first clamping head is abutted and clamped with the second clamping head, a gap is formed between the two scissor heads;

the scissors arm comprises a scissors handle and a main blade with a cutting edge line, the main blade is stacked on one scissors head, an auxiliary blade with the cutting edge line is arranged on the other scissors head, a second shaft is arranged on the joint, and the scissors handle is used for driving the main blade to rotate around the second shaft towards the auxiliary blade.

In the above technical solution of the present invention, the first collet and the second collet are used for determining the length of the tail of the intrauterine device to be retained, specifically, determining the position of the tail of the intrauterine device to be retained, and after the two scissor heads rotate around the first shaft by a certain angle, the first collet and the second collet are abutted and matched to retain the tail of the intrauterine device.

Furthermore, when the first chuck and the second chuck are matched to clamp the tail of the contraceptive ring, the scissor arm is rotated, and the main blade positioned at the front end of the scissor arm is matched with the auxiliary blade on the scissor head to form a cutting mode of rotating and cutting, so that the cutting process of the tail of the contraceptive ring is completed.

Preferably, the rotation of the main blade is a rotation located in the gap formed by the two scissor heads.

According to another embodiment of the invention, the first axis and the second axis are the same single axis or two parallel axes.

According to another embodiment of the invention, the scissors head is provided with a groove extending to the joint part, the main blade is positioned in the groove, the end part of the main blade positioned at the joint part is also provided with a sliding groove matched with the second shaft, and the main blade slides to change the cutting positions of the main blade and the auxiliary blade by pushing and pulling the scissors handle in the length direction of the scissors head.

Furthermore, the end part of the main blade, which is positioned at the joint part, is provided with a connecting groove, the scissors handle, which is positioned at the joint part, is provided with a rotating pin, and the rotating pin is arranged in the connecting groove and can rotate relative to the connecting groove.

Still further, the rotation pin is in threaded fit connection with the combining portion, and in the process that the rotation pin rotates relative to the combining portion, relative sliding between the sliding groove and the second shaft is achieved.

The maximum sliding distance of the second shaft in the sliding groove is the maximum distance of the cutting tail fiber which can be adjusted.

As is known, the cutting process of the scissors is a process of cutting off an object to be cut by staggering two edges of two scissors blades, and in the case that a secondary blade is fixed (or relatively fixed), the position of a cutting point can be changed by changing the position of a cutting point of a primary blade.

Preferably, the main blade in this scheme can also have an arc cutting edge portion, and the auxiliary blade has a straight line cutting edge portion that cooperates with the arc cutting edge portion.

According to another embodiment of the invention, the end of the scissor handle far away from the joint is provided with a graduated scale for displaying the cutting positions of the main blade and the auxiliary blade.

According to another embodiment of the invention, at least one of the scissor heads is provided with a stop for limiting the position of the main blade, and preferably both scissor heads are provided with a stop for limiting the position of the main blade.

According to another embodiment of the invention, the two clamping handle parts are respectively provided with a connecting sheet which is matched with each other, and the connecting sheets are provided with clamping teeth.

According to another embodiment of the invention, the two clamping shanks are bendable deformable clamping handles.

Furthermore, a connecting ring is arranged on a clamping handle part connected between the scissors heads stacked on the main blades, and the scissors handles are arranged in the connecting ring and synchronously rotate along with the clamping handle part;

when the clamping teeth on the two connecting sheets are matched to be positioned at the first position for clamping, the first chuck and the second chuck are abutted, and at the moment, the main blade and the scissor blade are overlapped;

when the clamping teeth on the two connecting sheets are matched to be positioned at the second position for clamping, the two clamping handle parts are bent and deformed, and the main blade rotates to a cutting-off position towards the auxiliary blade.

In this scheme, through setting up the centre gripping handle that can bend and warp, can realize holding the in-process of two centre gripping stalk portions tightly, carry out the cooperation of main blade and vice blade to cut off the tail silk of assigned position.

The invention has the following beneficial effects:

the invention has the advantages of compact structure and convenient use, the tail fiber close to the tail part of the contraceptive ring is firstly clamped by the two scissor heads, and then the tail fiber is cut off by the main blade and the auxiliary blade, in the process, the contraceptive ring can not be pulled, and the phenomenon that the contraceptive ring is loosened is avoided.

The invention realizes the purpose of quickly adjusting and retaining the length of the tail fiber by arranging the main blade capable of adjusting the position of the tangent point, and has the advantage of convenient adjustment.

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

Drawings

FIG. 1 is a schematic view of the overall construction of a shearing apparatus of the present invention;

FIG. 2 is a schematic view of a first position of the shearing device of the present invention;

FIG. 3 is a schematic view of the shearing device of the present invention showing the scissor arms in a first position;

fig. 4 is a schematic structural diagram of the joint of the scissor handle and the main blade in the shearing device of the invention.

Detailed Description

A shearing device for shearing the tail filament of contraceptive ring is composed of a pair of first and second bodies (10, 20), a rotary axle (30) (the first and second axles), and a shear arm (40).

As shown in fig. 1-3, first scissor body 10 includes a first coupling portion 11, a first scissor head 12, and a first clamping handle 13, wherein first scissor head 12 is located at a front end of first coupling portion 11, and a first clamping head 14 is disposed at an end of first scissor head 12 remote from first coupling portion 11.

Second scissors body 20 includes second joint 21, second scissors head 22 and second centre gripping handle 23, wherein second scissors head 22 is located the front end of second joint 21, is equipped with second chuck 24 at the tip of second scissors head 22 far away from second joint 21, and first chuck 14, second chuck 24 are located the inboard surface that first scissors head 12 and second scissors head 22 are opposite respectively, and when first chuck 14 and second chuck 24 butt and press from both sides tightly, exist clearance a between first scissors head 12 and second scissors head 22.

The first coupling portion 11 and the second coupling portion 21 are coupled to each other via a rotating shaft 30, and the first scissor head 12 and the second scissor head 22 are driven to rotate relatively around the rotating shaft 30 by external forces on the first clamping handle portion 13 and the second clamping handle portion 23, so that the first collet 14 and the second collet 24 are switched to be in a contact clamping state, and the tail wire near the tail of the intrauterine device is clamped.

Scissor arm 40 includes scissor handle 41, primary blade 42 having a cutting line, primary blade 42 being stacked on first scissor head 12, in particular in a central position of first scissor head 12, and secondary blade 50 having a cutting line being provided on second scissor head 22, wherein primary blade 42 is hinged to rotation shaft 30 at one end of first coupling 11 (or second coupling 21),

scissor handles 41 drive primary blade 42 to rotate about axis of rotation 30 toward secondary blade 50 to shear the fibers between primary blade 42 and secondary blade 50.

In particular, stops 60 are provided on both first scissor head 12 and second scissor head 22, such as the bar-shaped block structure shown on first scissor head 12 in fig. 1, for the purpose of limiting the rotational position of main blade 42, such that main blade 42 remains rotated within gap a between first scissor head 12 and second scissor head 22.

In order to adapt to the physiological structure characteristics of different women and to adaptively reserve the tail fibers with different lengths, as an extension of the present invention, the scissor arm 40 is configured to slide along the length direction of the first scissor body 10 in a small range, and the specific structure is as follows:

the main blade 42 is disposed in a recessed manner in the recess 15 in the first scissor head 12, the main blade 42 being disposed completely in the recess 15 when no cutting is performed, as shown in fig. 3.

In order to perform the sliding of the scissor arm 40, the main blade 42 is provided with a sliding slot 43 at the end of the first coupling portion 11, which is engaged with the rotating shaft 30, and correspondingly, a connecting slot 44 is further provided at the end of the main blade 42 at the first coupling portion 11, the scissor handle 41 is provided with a rotating pin 45 in the first coupling portion 11, the rotating pin 45 is partially disposed in the connecting slot 44, and a screw thread 46 (an internal thread is provided on the first coupling portion 11) engaged with the first coupling portion 11 is provided on the rotating pin 45, as shown in fig. 4, by rotating the scissor handle 41, the rotating pin 45 can rotate with the scissor handle 41 in the connecting slot 44, and then is displaced to drive the main blade 42 to slide relative to the rotating shaft 30, thereby changing the cutting position of the main blade 42 relative to the auxiliary blade 50.

Wherein the primary blade 42 is a movable blade and the secondary blade 50 is a fixed blade.

Specifically, the length of the sliding groove 43 is the maximum sliding distance of the rotating shaft 30 relative to the sliding groove 43, that is, the maximum distance of the cut-off fiber which can be adjusted.

In order to further adjust the specific position of main blade 42, a scale 70 for displaying the cutting position of main blade 42 and sub-blade 50 is provided on the end of scissor handle 41 away from first coupling portion 11.

In a preferred example of the present invention, by providing the matching structure, the first clamping handle portion 13 and the second clamping handle portion 23 are held in stages to complete the clamping and cutting of the fiber in stages, the process is more concise, and the specific structure is as follows:

first centre gripping stalk portion 13, second centre gripping stalk portion 23 are equipped with two complex connection pieces 80 respectively, all are equipped with latch 81 on the connection piece 80, and latch 81 has first position block L1 and second position block L2 at least to a plurality of operating condition are provided, wherein first position block L1 is the condition of two adjacent latch 81 looks blocks, and the second position block is the condition of four latch 81 all blocks.

Further, the first clamping handle portion 13 and the second clamping handle portion 23 are formed as a bendable and deformable clamping handle, and are made of, for example, a strip-shaped stainless steel material.

Wherein, the first clamping handle 13 is provided with a connecting ring 16, for example, the connecting ring 16 is a magic tape which can be unfolded, when in use, the magic tape is wrapped around the scissor handle 41 for connection, so that the end of the scissor handle 41 penetrates through the connecting ring 16 and is placed in the connecting ring 16 to rotate synchronously with the first clamping handle 13;

when the latches 81 on the two connecting pieces 80 are engaged with each other to be located at the first position engaging L1, as shown in the position of fig. 2, the first jaw 14 and the second jaw 24 are abutted against each other, and the main blade 42 is overlapped with the first scissor head 12;

at this time, the first and second clamping handle portions 13 and 23 are further gripped, so that the two connecting pieces 80 are further rotated in the direction indicated by the arrows in fig. 3 to be fitted into the engagement L2 located at the second position, the first and second clamping handle portions 13 and 23 are bent and deformed, and the main blade 42 is rotated toward the sub blade 50 to the cutting position to cut the tail filaments clamped by the first and second chucks 14 and 24.

Fig. 1-4 show the same single shaft manner, which is used to realize the relative rotation between the first and second bodies 10 and 20 around the rotation shaft 30 for clamping the tail of the contraceptive ring by the first and second jaws 14 and 24, and to rotate the main blade 42 around the rotation shaft 30 relative to the auxiliary blade 50 for cutting the tail at a predetermined position and retaining a predetermined length after clamping.

In other preferred examples of the present invention, the above actions can be implemented in a parallel dual-axis manner, and are not described herein again.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims

1. A cutting device for cutting a fiber of an intrauterine device, the cutting device comprising:

two scissor bodies in pair;

a first shaft for rotatably connecting the two scissor bodies; and

a scissor arm;

wherein the scissor body comprises a joint, a scissor head located at a front end of the joint, and a clamping handle located at a rear end of the joint, the first axis being located on the joint, the clamping handle being for driving the scissor head to rotate about the first axis;

the scissors comprise two scissors bodies, wherein a first clamping head and a second clamping head are respectively arranged on the inner side surfaces of the two scissors heads which are opposite to each other, and when the first clamping head is abutted and clamped with the second clamping head, a gap is formed between the two scissors heads;

2. The shearing device of claim 1, wherein said first axis and said second axis are the same single axis or are parallel dual axes.

3. The shearing apparatus as defined in claim 1, wherein said scissors head is provided with a recess extending to said joint, said main blade is positioned in said recess, said main blade is positioned at an end of said joint and is further provided with a sliding groove engaged with said second shaft, and said main blade is slid to change a cutting position of said main blade and said sub blade by pushing and pulling said scissors handle in a longitudinal direction of said scissors head.

4. The shearing apparatus as recited in claim 3, wherein said main blade is provided with a connecting groove at an end portion thereof located at said coupling portion, and said scissor handle is provided with a rotating pin located at said coupling portion, said rotating pin being disposed in said connecting groove and being capable of rotating with respect to said connecting groove.

5. The clipping apparatus of claim 4, wherein the rotation pin is in threaded engagement with the engagement portion.

6. A cutting device according to claim 5, wherein the end of the scissor handle remote from the joint is provided with a scale indicating the cutting position of the primary and secondary blades.

7. A cutting device according to claim 1, characterized in that at least one of the cutting heads is provided with a stop for limiting the position of the main blade.

8. The shearing device as defined in claim 1, wherein the two shank portions are respectively provided with mutually cooperating coupling pieces, and the coupling pieces are provided with latch teeth.

9. The clipping apparatus of claim 1, wherein two of the gripping shanks are bendable deformable gripping handles.

10. The trimmer according to claim 9, wherein said shank portion connected between said trimmer head in overlying relation to said primary blade is provided with a connecting ring, said trimmer shank being disposed within said connecting ring and rotating synchronously therewith;

when the clamping teeth on the two connecting sheets are matched to be positioned at a first position for clamping, the first chuck and the second chuck are abutted, and at the moment, the main blade and the scissor blade are overlapped;

when the clamping teeth on the two connecting sheets are matched to be positioned at a second position for clamping, the two clamping handle parts are bent and deformed, and the main blade rotates to a cutting-off position towards the auxiliary blade.