CN216823611U - No-damage wire removing device for cervical cerclage wire - Google Patents

Abstract

The utility model discloses a non-injury stitches removing device of a cervical cerclage, which is convenient and quick, and is not easy to cause injury to a lying-in woman. The key points of the technical scheme are as follows: the cervical cerclage ligature taking-out mechanism comprises a handle and a ligature taking-out mechanism capable of extending into a vagina, wherein the ligature taking-out mechanism comprises an inner extension rod and a ligature taking-out head, the end part of the inner extension rod is connected with the handle, the ligature taking-out head is provided with a barb part and an upper hook part, a ligature breaking cavity is formed between the barb part and the upper hook part, and a gap for a cervical cerclage ligature to enter is formed between the barb part and the upper hook part; the thread-breaking assembly is arranged in the thread-removing head, the inner side of the barb part is provided with a notch, the notch and the thread-breaking cavity form a whole, the thread-breaking assembly is arranged corresponding to the notch, the cervical cerclage thread can slide into the notch along the inner side wall of the barb part, and the cervical cerclage thread entering the notch is cut off by the thread-breaking assembly.

Description

No-damage wire removing device for cervical cerclage wire

Technical Field

The utility model relates to the field of gynecological medical instruments, in particular to a non-injury stitch removing device for a cervical cerclage stitch.

Background

Cervical cerclage is a commonly used operation mode for preventing middle-term gestational loss and premature delivery of cervical insufficiency, the cervical orifice is reduced through cervical cerclage, the normal shape and function of the cervical orifice are repaired and established, the pregnancy can be maintained to the term or the fetus can survive, and generally, a doctor adopts an operation line to tie the periphery of the cervical orifice of a puerpera for a circle. Generally, the cervical ring ligature is removed at 37-38 weeks of gestation or just before delivery, when the cervical ring ligature is removed, a vaginal dilator is adopted to open the vagina of a puerpera, forceps or egg circular forceps are held by hands to clamp one end of the ligature from the outer wall of the cervix, the ligature is lifted upwards, and the ligature is cut off by scissors. However, the difficulty of finding and clamping the cervical ring ligature by using forceps or oval forceps is high, and severe pain can be brought to the puerpera when the cervical ring ligature is clamped and lifted; in addition, because 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 scissors are easy to prick the vaginal wall to cause injury to the lying-in woman.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a non-injury stitches removing device for a cervical cerclage, which is convenient and quick, and is not easy to cause injury to a puerpera.

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

a non-injury stitches removing device of a cervical cerclage thread comprises a handle and a stitches removing mechanism which can extend into a vagina, wherein the stitches removing mechanism comprises an inner extending rod and a stitches removing head arranged at the end part of the inner extending rod, one end, far away from the stitches removing head, of the inner extending rod is connected with the handle, the stitches removing head is provided with a barb part and an upper hook part, a thread breaking cavity is formed between the barb part and the upper hook part, a notch for the cervical cerclage thread to enter is formed between the end part of the barb part and the end part of the upper hook part, and the end part of the barb part extends outwards to exceed the end part of the upper hook part; the cervical cerclage ligature device is characterized in that a ligature breaking component is further arranged in the ligature detaching head, a notch is formed in the inner side of the barb portion, the notch and the ligature breaking cavity form a whole, the ligature breaking component is arranged corresponding to the notch, a cervical cerclage ligature can slide into the notch along the inner side wall of the barb portion, and the cervical cerclage ligature entering the notch is cut off by the ligature breaking component.

Preferably, the thread breaking assembly adopts a hot cutting device, the hot cutting device is provided with a hot filament, and the hot filament is arranged across the notch; the handle is provided with a button for controlling the hot cutting device to be opened and closed, and the button is connected with the hot cutting device through an internal circuit.

Preferably, the outer side wall of the barb part is an arc-shaped surface, the barb part gradually thickens along the direction from the end part to the opening, the inner side wall of the barb part gradually expands outwards towards two sides and becomes wider and is connected with the outer side wall in a smooth transition mode, the inner side wall of the barb part forms a V-shaped bulge at the opening, and the hot wire is arranged under the V-shaped bulge.

Preferably, the inner extension rod is made of flexible materials, a support rod piece is arranged inside the inner extension rod and comprises a fixed rod and an elastic rod, two ends of the fixed rod are fixedly connected with the handle and the elastic rod respectively, a connecting seat is arranged at one end, far away from the fixed rod, of the elastic rod, the thread removing head is fixed on the connecting seat, and the elastic rod is provided with a control mechanism for controlling self bending.

Preferably, the control mechanism comprises a rigid linkage line, a limiting structure, a pulley and a push button, the rigid linkage line is connected with the connecting seat, the limiting structure is arranged in the inner extension rod, the rigid linkage line penetrates through the limiting structure from the connecting seat to enter the handle, the rigid linkage line is connected with the push button after being turned by the pulley, and the push button is arranged on the surface of the handle.

Preferably, a self-locking structure for preventing the push button from automatically resetting is arranged between the push button and the handle.

Preferably, the limiting structure comprises at least two limiting seats, the limiting seats are provided with limiting holes for the rigid linkage wires to pass through, the limiting seats are averagely arranged in the inner extension rod and correspond to the parts of the elastic rods, one of the limiting seats is arranged at the joint of the elastic rods and the fixed rod, the elastic rods are in a stretched state when not subjected to external force and are coaxial with the fixed rod, and when the elastic rods are in the stretched state, the limiting holes of the limiting seats are coaxial.

Compared with the prior art, the atraumatic device for removing the cervical cerclage wire has the following advantages that:

compared with the existing tweezers or oval forceps, the stitch removing mechanism in the scheme has a shape which is longer and regular, can extend into the vagina more conveniently and smoothly to be close to the cervical orifice for thread cutting operation, and can bend and adjust the inner extension rod in the preferred scheme, so that the stitch removing head can reach the stitch removing position more easily, and the operation difficulty is reduced.

The barb part of the thread removing head can smoothly hook the cervical ring ligature under the conditions of poor visual field and small operation space, forceps or oval forceps are not needed to be adopted to clamp and pick up the cervical ring ligature, the hooked cervical ring ligature slides into the broken thread cavity in a smooth manner to be subsequently cut off, the upper hook part can effectively prevent the cervical ring ligature from sliding out of the broken thread cavity in the operation process, and the end part of the barb part outwards extends to exceed the end part of the upper hook part, so that the upper hook part can be prevented from blocking the barb part to hook the cervical ring ligature, the thread removing operation time is favorably reduced, and the pain of a puerpera is favorably relieved.

When the barb part hooks the cervical ring ligature, the cervical cerclage ligature slides into the opening along the inner wall of the barb part and contacts the hot cutting wire traversing the opening, the hot cutting wire is electrified to generate instant high temperature to cut off the cervical cerclage ligature, the hot cutting wire can also sinter the section of the cervical ring ligature while cutting, fluff generated at the section is prevented from contacting human tissues again or falling on the human tissues, and the cervical cerclage ligature does not need to go deep into scissors to cut the ligature, so that the ligature removing step is simplified, the safety is higher, and the problem that the scissors easily hurt the vaginal wall is solved.

And fourthly, the hot cutting wire is arranged in the middle of the thicker part of the thread removing head and is far away from the outer wall of the thread removing head, so that enough distance is always kept between the body tissue and the hot cutting wire, and the body tissue is prevented from being scalded when the hot cutting wire generates instant high temperature.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the atraumatic device for ligature of cervical ring of the present invention.

Fig. 2 is a schematic structural diagram of the wire detaching mechanism in this embodiment.

Fig. 3 is a schematic structural diagram of the thread removing head in this embodiment.

Fig. 4 is a schematic cross-sectional view of the barb portion of this embodiment.

Reference numerals: 1. a handle; 2. a wire detaching mechanism; 20. an inner extension rod; 21. removing the wire head; 210. a barb portion; 2100. opening the gap; 2101. a V-shaped protrusion; 211. an upper hook portion; 212. a wire breaking cavity; 213. a wire breaking assembly; 2130. hot shredding; 22. supporting the rod member; 220. fixing the rod; 221. an elastic rod; 2210. a connecting seat; 23. a rigid linkage line; 24. a limiting seat; 25. a pulley; 26. a push button; 3. ligature of cervical ring.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The atraumatic device for removing ligature of cervical ring shown in fig. 1-4 comprises a handle 1 and a removing mechanism 2 which can extend into vagina, wherein the removing mechanism 2 comprises an inner stretching rod 20 and a removing head 21 arranged at the end part of the inner stretching rod 20, and one end of the inner stretching rod 20 far away from the removing head 21 is connected with the handle 1.

Stretch out pole 20 in and adopt silica gel material, stretch out inside being equipped with support rod member 22 of pole 20 in, support rod member 22 includes dead lever 220 and elastic rod 221, dead lever 220 both ends respectively with handle 1 and elastic rod 221 fixed connection, dead lever 220 sets up with the axle center with handle 1 and the two is fixed relatively completely, elastic rod 221 adopts the better metal material of toughness, the one end that elastic rod 221 kept away from dead lever 220 is equipped with connecting seat 2210, it fixes on connecting seat 2210 to tear line head 21 open, elastic rod 221 is equipped with the control mechanism who is used for controlling self bending.

The control mechanism comprises a rigid linkage line 23, a limiting structure, a pulley 25 and a push button 26, the rigid linkage line 23 is connected with the connecting seat 2210, the limiting structure comprises three limiting seats 24, the limiting seats 24 are provided with limiting holes for the rigid linkage line 23 to pass through, the three limiting seats 24 are averagely arranged on the part of the inner extension rod 20 corresponding to the elastic rod 221, wherein, the limiting seat 24 closest to the fixed rod 220 is arranged at the joint of the elastic rod 221 and the fixed rod 220, the elastic rod 221 is in a stretched state and coaxial with the fixed rod 220 when not subjected to external force, when the elastic rod 221 is in a stretched state, the position-limiting holes of the position-limiting seats 24 are coaxial, the rigid connecting wire 23 sequentially passes through the three position-limiting seats 24 from the connecting seat 2210 and enters the handle 1, and is connected with a push button 26 after being turned by a pulley 25, the push button 26 is arranged on the surface of the handle 1, and a self-locking structure for preventing the push button 26 from automatically resetting is arranged between the push button 26 and the handle 1.

The thread removing head 21 is provided with a barb part 210 and an upper hook part 211, a thread breaking cavity 212 is formed between the barb part 210 and the upper hook part 211, a notch for the cervical ring ligature 3 to enter is formed between the end part of the barb part 210 and the end part of the upper hook part 211, and the end part of the barb part 210 extends outwards to exceed the end part of the upper hook part 211.

The thread removing head 21 is provided with a thread breaking assembly 213, the thread breaking assembly 213 adopts a hot cutting device, the hot cutting device is provided with a hot cutting wire 2130, the handle 1 is provided with a button for controlling the on-off of the hot cutting device, the button is connected with the hot cutting device through an internal circuit, and the hot cutting device is started to enable the hot cutting wire 2130 to generate instant high temperature.

The inner side of the barb part 210 is inwards sunken to form a notch 2100, the notch 2100 and the inner side of the barb part 210 are in smooth transition, the notch 2100 and the thread breakage cavity 212 are formed into a whole, the hot cut wire 2130 is arranged across the notch 2100, the outer side wall of the barb part 210 is an arc-shaped surface, the barb part 210 gradually becomes thick along the direction from the end part to the notch 2100, the inner side wall of the barb part 210 gradually expands outwards and widens towards two sides and is in smooth transition connection with the outer side wall, a V-shaped bulge 2101 is formed on the inner side wall of the barb part 210 at the position of the notch 2100, the hot cut wire 2130 is arranged right below the V-shaped bulge 2101, after the barb part 210 hooks the cervical ring ligature 3, the cervical ring ligature 3 can slide into the notch 2100 along the inner side wall of the barb part 210, and the cervical ring ligature 2100 entering the notch is cut by the hot cut wire 2130.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (7)

1. The utility model provides a no wound device of taking out stitches of cervical cerclage which characterized in that: the cervical ring ligature device comprises a handle (1) and a ligature detaching mechanism (2) capable of extending into a vagina, wherein the ligature detaching mechanism (2) comprises an inner extension rod (20) and a ligature detaching head (21) arranged at the end part of the inner extension rod (20), one end, far away from the ligature detaching head (21), of the inner extension rod (20) is connected with the handle (1), the ligature detaching head (21) is provided with a barb part (210) and an upper hook part (211), a ligature breaking cavity (212) is formed between the barb part (210) and the upper hook part (211), a notch for a cervical ring ligature (3) to enter is formed between the end part of the barb part (210) and the end part of the upper hook part (211), and the end part of the barb part (210) extends outwards to exceed the end part of the upper hook part (211);

the thread removing head (21) is further provided with a thread breaking component (213), the inner side of the barb portion (210) is provided with a notch (2100), the notch (2100) and the thread breaking cavity (212) are integrated, the thread breaking component (213) corresponds to the notch (2100), a cervical ring binding thread (3) can slide into the notch (2100) along the inner side wall of the barb portion (210), and the cervical ring binding thread (3) entering the notch (2100) is cut off by the thread breaking component (213).

2. The atraumatic device for removing ligatures in cervical loops according to claim 1, characterized in that: the wire breaking assembly (213) adopts a hot cutting device, the hot cutting device is provided with a hot cutting wire (2130), and the hot cutting wire (2130) is arranged across the notch (2100); the handle (1) is provided with a button for controlling the hot cutting device to be opened and closed, and the button is connected with the hot cutting device through an internal circuit.

3. The atraumatic device for removing a cervical cerclage according to claim 2, wherein: the outer side wall of the barb part (210) is an arc-shaped surface, the barb part (210) gradually becomes thick along the direction from the end part to the opening (2100), the inner side wall of the barb part (210) gradually expands outwards to two sides and is in smooth transition connection with the outer side wall, a V-shaped protrusion (2101) is formed on the inner side wall of the barb part (210) at the opening (2100), and the hot filament (2130) is arranged right below the V-shaped protrusion (2101).

4. The atraumatic device for removing ligatures in cervical loops according to claim 1, characterized in that: the utility model discloses a flexible material, including stretch out pole (20), support rod spare (22) are equipped with in stretching out pole (20) in, support rod spare (22) include dead lever (220) and elastic rod (221), dead lever (220) both ends respectively with handle (1) and elastic rod (221) fixed connection, the one end that dead lever (220) were kept away from in elastic rod (221) is equipped with connecting seat (2210), it is fixed in to tear line head (21) connecting seat (2210), elastic rod (221) are equipped with the control mechanism who is used for controlling self bending.

5. The atraumatic device for removal of cervical loop ligatures according to claim 4, characterized in that: the control mechanism comprises a rigid linkage line (23), a limiting structure, a pulley (25) and a push button (26), the rigid linkage line (23) is connected with the connecting seat (2210), the limiting structure is arranged in the inner extension rod (20), the rigid linkage line (23) penetrates through the limiting structure from the connecting seat (2210) to enter the handle (1), and is connected with the push button (26) after being turned by the pulley (25), and the push button (26) is arranged on the surface of the handle (1).

6. The atraumatic device for removal of cervical loop ligatures according to claim 5, characterized in that: a self-locking structure for preventing the push button (26) from automatically resetting is arranged between the push button (26) and the handle (1).

7. The atraumatic device for ligature of the cervical ring according to claim 5, characterized in that: the limiting structure comprises at least two limiting seats (24), wherein the limiting seats (24) are provided with limiting holes for the rigid linkage wires (23) to pass through, a plurality of limiting seats (24) are averagely arranged in the inner extension rod (20) and correspond to the parts of the elastic rods (221), one of the limiting seats (24) is arranged at the joint of the elastic rods (221) and the fixing rods (220), the elastic rods (221) are in a stretched straight state when not subjected to external force and are coaxial with the fixing rods (220), and when the elastic rods (221) are in a stretched straight state, the limiting holes of the limiting seats (24) are coaxial.

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