CN111991172A

CN111991172A - Gynecological contraceptive ring removing bed

Info

Publication number: CN111991172A
Application number: CN202010919670.9A
Authority: CN
Inventors: 彭燕; 陈程; 邱文毅; 潘庆庆
Original assignee: Changzhou Customs Of People's Republic Of China; First Peoples Hospital of Changzhou; Changzhou Wujin Peoples Hospital
Current assignee: Changzhou Customs Of People's Republic Of China; First Peoples Hospital of Changzhou; Changzhou Wujin Peoples Hospital
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2020-11-27

Abstract

A gynecological ring removing bed relates to the technical field of ring removing, and adopts the technical scheme that the gynecological ring removing bed comprises a base, wherein a seat plate is arranged on the base, the seat plate is rotatably connected with the base, and a telescopic device is hinged between the seat plate and the base; also comprises a control device and a ring taking device. According to the invention, the position and the angle of the ring extracting forceps can be flexibly adjusted by the control device, and the moving device can automatically advance or retreat along the guide rail so as to release the attention of a doctor, so that the doctor can concentrate on controlling the direction of the ring extracting forceps, the operation is simplified, and the efficiency is improved; the first forearm and the second forearm decompose the overall angle between the uterus and the vagina, so that the contraceptive ring removing forceps are narrower in overall width, can easily extend into the vagina, do not need a vaginal speculum, and avoid the vaginal speculum from damaging the vaginal wall; when the motion device advances to the second forearm, the whole angle of the ring removing forceps is matched with the angle between the uterus and the vagina, so that the ring removing forceps can be tightly attached to the front wall and the rear wall of the uterus to enter the uterine cavity, and the uterine wall is not easy to be damaged.

Description

Gynecological contraceptive ring removing bed

Technical Field

The invention relates to the technical field of intrauterine device removal, in particular to an intrauterine device removal bed for gynecology.

Background

The IUD is a main contraceptive measure for women of childbearing age in China at present, and the intrauterine device is required to be taken out for various reasons. The prior medical instruments for removing the intrauterine device comprise an intrauterine device removing hook, an intrauterine device removing clamp and the like. The ring-taking hook is only suitable for closed intrauterine devices, and is difficult to take out for open intrauterine devices or ruptured and disjointed intrauterine devices; the contraceptive ring removing forceps are suitable for contraceptive rings of various models, but the position of the contraceptive ring needs to be checked in advance by adopting a B-ultrasonic or a probe, and a doctor does not have an intra-abdominal visual field during contraceptive ring removing, so that the contraceptive ring removing forceps have high dependence on the operation experience, are operated manually, need to hold the direction and stabilize the forceps body, and are complex to operate; the uterine cavity, the cervix and the vagina have certain angles, the ring removing forceps are also designed to be bent, but the angle is large, and the ring removing forceps can be smoothly inserted only by utilizing a vaginal speculum to prop open the vagina; the ring-removing forceps are long in whole and difficult to open due to the limitation of the cervix.

Disclosure of Invention

The invention provides a gynecological contraceptive ring removing bed, which aims at solving the problems that the contraceptive ring removing operation is complex, the angle is too large and the contraceptive ring is not easy to extend into the contraceptive ring removing bed in the prior technical scheme.

The invention provides the following technical scheme: a gynecological contraceptive ring removing bed comprises a base, wherein a seat plate is arranged on the base, the seat plate is rotatably connected with the base, and a telescopic device is hinged between the seat plate and the base; the seat is characterized by also comprising an operation device, wherein the operation device is connected to the seat plate through a support and comprises a base arranged on the support, a connecting rod rotationally connected with the base and a guide rail rotationally connected with the connecting rod, and the guide rail is provided with a handle; the guide rail is also provided with a ring taking device, and the ring taking device comprises a moving device capable of moving along the guide rail and ring taking pincers arranged on the moving device; the ring removing forceps comprise a first front arm and a first rear arm, the guide rail comprises a second front arm and a second rear arm, and the sum of included angles between the first front arm and the first rear arm and between the second front arm and the second rear arm is 15-30 degrees; the device further comprises a controller, and the controller is in signal connection with the moving device and the telescopic device.

Preferably, the movement device comprises a base plate, the base plate is rotatably connected with two hollow transverse shafts, motors are arranged inside two ends of each transverse shaft, a rotating wheel is arranged on an output shaft of each motor, and the motors are in signal connection with the controller; the upper side and the lower side of the guide rail are provided with sliding grooves, and the rotating wheels are clamped in the sliding grooves.

Preferably, the first rear arm is hollow inside, and a hollow mounting box is arranged at one end facing the moving device; the inner wall of the mounting box is provided with a groove, a traction device is arranged in the groove and comprises a first rotating shaft arranged in the groove, a baffle, a round wheel, a traction wheel and a button protruding out of the mounting box are sequentially arranged on the first rotating shaft, the baffle is in sliding connection with the first rotating shaft, a plurality of first compression springs are arranged between the baffle and the groove, and the round wheel, the traction wheel and the button are fixedly connected into a whole and are in rotating connection with the first rotating shaft; the circular wheel is also provided with a plurality of ratchets, and the width of each ratchet is smaller than that of the circular wheel; a second rotating shaft is further arranged on the inner wall of the mounting box, and a stop pawl used for limiting the rotation direction of the ratchet is rotatably connected to the second rotating shaft; the inside cavity of first forearm just is provided with the third pivot, it has two pincers bodies, two to articulate in the third pivot be provided with second compression spring, two between the pincers body all articulates there is branch, two branch articulates mutually and is provided with the haulage rope in articulated department, the haulage rope with traction wheel fixed connection.

Preferably, a torsion spring is provided between the latch claw and the second rotation shaft.

Preferably, first forearm still is provided with image acquisition unit, light filling lamp, the controller includes image processing module, image processing module with image acquisition unit, light filling lamp signal connection.

Preferably, one end of the first rear arm facing the mounting box is further provided with a knob, and the knob is rotatably connected with the mounting box.

Preferably, the length of the first rear arm is >12 cm.

Preferably, the guide rail is in interference connection with a sliding sleeve, and the sliding sleeve is rotationally connected with the connecting rod; scales are further arranged on the first rear arm and the guide rail.

Preferably, the sum of the lengths of the first front arm and the exposed part of the forceps body is equal to the length of the second front arm, and the sum of the lengths of the first front arm and the exposed part of the forceps body is 4-6 cm.

Preferably, the base and connecting rod junction, connecting rod and guide rail junction are provided with fastener, fastener includes axis of rotation and nut, axis of rotation and nut threaded connection.

The invention has the beneficial effects that: 1. the seat plate is rotatably connected with the base, and the angle of the seat plate can be changed through the telescopic device so as to lift the hip of the patient, so that the operation of a doctor is facilitated, and the doctor has a good operation position; 2. the control device can flexibly adjust the position and the angle of the ring removing forceps, and the movement device can automatically advance or retreat along the guide rail so as to release the attention of a doctor, so that the doctor can concentrate on controlling the direction of the ring removing forceps, the operation is simplified, and the efficiency is improved; 3. the contraceptive ring removing forceps are provided with the image acquisition unit and the light supplement lamp, so that the synchronous operation visual field of the advancing direction of the contraceptive ring removing forceps can be acquired, the direction can be conveniently adjusted, the position of a contraceptive ring can be conveniently found, and the operation time is shortened; 4. the first forearm and the second forearm decompose the overall angle between the uterus and the vagina, so that the contraceptive ring removing forceps are narrower in overall width, can easily extend into the vagina, do not need a vaginal speculum, and avoid the vaginal speculum from damaging the vaginal wall; when the movement device advances to the second forearm, the whole angle of the ring-removing forceps is matched with the angle between the uterus and the vagina, so that the ring-removing forceps can be tightly attached to the front wall and the rear wall of the uterus to enter the uterine cavity, and the uterine wall is not easy to be damaged; 5. the first forearm has a larger radius, and can play a role of a cervical dilator so as not to damage the internal orifice of the uterus when taking the ring; 6. scales are arranged on the ring-removing forceps and the guide rail, so that a doctor can judge the depth of the ring-removing forceps and the guide rail; the sliding sleeve is convenient for a doctor to adjust the relative position of the guide rail and a patient, and when the forceps head touches the external orifice of the uterus, the moving device is adjusted to the joint of the front arm and the rear arm of the second, so that the moving device can conveniently enter the uterine cavity by utilizing the angle.

Drawings

FIG. 1 is a three-dimensional schematic of one embodiment of the present invention.

Fig. 2 is a side view of one embodiment of the present invention.

Fig. 3 is a three-dimensional schematic view of an embodiment of the manipulation device and the ring removal device of the present invention.

Fig. 4 is a side view of one embodiment of a manipulation device and a ring removal device of the present invention.

Fig. 5 is a top view of one embodiment of a manipulation device and a ring removal device of the present invention.

Fig. 6 is an angle view of an embodiment of the manipulating device and the ring removing device of the present invention.

Fig. 7 is an enlarged view of a portion a of fig. 4.

Fig. 8 is an enlarged view of a portion B of fig. 5.

Fig. 9 is an enlarged view of a portion C of fig. 4.

Fig. 10 is a cross-sectional view of one embodiment of a first forearm of the invention.

FIG. 11 is a cross-sectional view of one embodiment of the fastening device of the present invention.

Figure 12 is a cross-sectional view of one embodiment of the sliding sleeve of the present invention.

Reference numerals: 1-base, 11-seat, 12-telescoping device, 2-control device, 21-support, 22-base, 23-connecting rod, 24-guide rail, 241-sliding groove, 25-handle, 26-second front arm, 27-fastening device, 271-rotating shaft, 272-nut, 28-sliding sleeve, 3-ring-taking device, 31-moving device, 311-base plate, 312-transverse shaft, 313-rotating wheel, 32-ring-taking clamp, 33-first front arm, 331-third rotating shaft, 332-clamp body, 333-second compression spring, 334-support rod, 335-image acquisition unit, 34-first rear arm, 35-mounting box, 351-groove, 36-traction device, 361-first rotating shaft, 362-stop, 363-circular wheel, 364-traction wheel, 365-button, 366-first compression spring, 367-ratchet, 368-dog, 37-traction rope, 38-knob.

Detailed Description

The embodiments of the present invention will be described in more detail with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the embodiments of the present invention after studying the specification. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a gynecological contraceptive ring removing bed as shown in figures 1 and 2, which comprises a base 1, wherein a seat plate 11 is arranged on the base 1, the seat plate 11 is rotatably connected with the base 1, and a telescopic device 12 is hinged between the seat plate 11 and the base 1; the seat is characterized by further comprising an operation device 2, wherein the operation device 2 is connected to the seat 11 through a support 21 and comprises a base 22 arranged on the support 21, a connecting rod 23 rotatably connected with the base 22 and a guide rail 24 rotatably connected with the connecting rod 23, and the guide rail 24 is provided with a handle 25; the guide rail 24 is also provided with a ring removing device 3, and the ring removing device 3 comprises a moving device 31 capable of moving along the guide rail and a ring removing clamp 32 arranged on the moving device 31; the ring-removing forceps 32 comprises a first front arm 33 and a first rear arm 34, the guide rail 24 comprises a second front arm 26 and a second rear arm, and the sum of the included angles between the first front arm 33 and the first rear arm 34 and the included angles between the second front arm 26 and the second rear arm is 15-30 degrees; the device further comprises a controller which is in signal connection with the moving device 31 and the telescopic device 12.

The base can be made of ABS plastic and mainly provides support for the bed surface of the contraceptive ring removing bed; the seat plate can adopt 304 stainless steel as a bottom plate, and a soft cushion is covered on the bottom plate and is used for supporting the buttocks and the root of thighs of a patient. In the ring-removing operation, the patient generally adopts the lying posture of the conventional lithotomy position to expose the perineum, but the conventional lithotomy position is not beneficial to the operation of a doctor due to the deep operation position and the narrow operation visual field, so that the angle of the hip of the patient can be adjusted to enable the hip to face the hand of the doctor in the normal standing posture, and the doctor can obtain a more comfortable operation position. One side of the seat plate is rotatably connected with the base, and a telescopic device is hinged between the seat plate and the base, so that the angle of the seat plate can be adjusted, as shown in figure 2. In one embodiment, the seat plate can be lifted by 15 degrees, and is suitable for general patients; the telescopic device includes but is not limited to an electric push rod, a hydraulic telescopic rod and the like.

The bracket, the base, the connecting rod, the guide rail and the handle can be made of 304 stainless steel. As shown in fig. 2, the front end of the seat plate is connected with an operation device through a bracket, and a ring removing device is arranged on a guide rail of the operation device. The operation and control device comprises a base, a connecting rod and a guide rail which are mutually rotationally connected, has two degrees of freedom, and can flexibly adjust the angle and the height of the ring taking device before an operation is performed, so that the ring taking device is in a position which is more favorable for the operation; specifically, the base, the connecting rod and the guide rail can be connected in a rotating mode through the rotating shaft and the rotating circular groove, and the rotating shaft and the rotating circular groove are in interference fit, so that the tightness of a certain degree is achieved. The bracket provides support for the operation device and the ring taking device, and simultaneously keeps a proper distance between the ring taking device and the operation part under the coordination of the rotary connecting structures with two degrees of freedom; furthermore, the support can be designed into a telescopic structure, so that the control device can move back and forth along the length direction of the base, and the relative position between the contraceptive ring removing device and the operation position can be adjusted more flexibly. The guide rail is also provided with a handle which is convenient to hold. Mechanical structure is more stable than the people hand, and at the operation in-process of carrying out, the doctor need not divide attention and goes the position of stabilizing the ring device of getting, can only need the one hand to control the direction that the handle finely tuned the ring device of getting, more can be absorbed in and get ring itself, has positive meaning to promoting operation efficiency.

The ring removing device comprises a moving device and a ring removing clamp. The motion device can automatically move along the length direction of the guide rail, and the motion device comprises but is not limited to sliding, rolling and the like. The ring taking forceps are used for clamping the contraceptive ring, are integrally connected with the movement device and move along with the movement of the movement device. The ring-removing forceps and the guide rail both comprise a front arm and a front arm, as shown in fig. 6, included angles alpha and beta are respectively formed between the first front arm and the first rear arm and between the second front arm and the second rear arm, the sum of the included angles alpha and beta is 15-30 degrees, the included angles are close to the angle of a uterus, the ergonomic design is better met, and the connecting positions of the first front arm and the first rear arm, and the connecting positions of the second front arm and the second rear arm are subjected to smoothing treatment according to the included angles. Wherein, the length of the first forearm and the second forearm is slightly shorter than the depth of the uterine cavity, and the length of the first rear arm is close to the length of the vagina.

When the movement device moves on the second rear arm, the ring removing forceps do linear movement and extend into the vagina of a patient, the angle alpha of the ring removing forceps is smaller than that of the ring removing forceps in the prior art, specifically, in one embodiment as shown in fig. 3, the angle alpha is not larger than half of the angle of the uterus, the whole width of the ring removing forceps is greatly reduced, a vaginal speculum is not needed to widen the vagina, the ring removing forceps can also extend into the vagina smoothly, and the patient is prevented from being damaged by the vaginal speculum; when the movement device moves to the joint of the second rear arm and the second front arm, the front end of the first front arm is tightly attached to the external orifice of the uterus; when the motion device moves to the second forearm, the change angle of the motion track of the first forearm is the sum of alpha and beta, is close to the angle of the uterus, can be tightly attached to the front wall and the rear wall of the uterus and enters the uterine cavity, and the uterine wall is not easy to be damaged.

The controller can adopt an s7-200 series PLC programmable controller, is in signal connection with the motion device and the telescopic device, and controls the starting and stopping of the motion device and the moving speed of the motion device.

The position of the contraceptive ring can be found out in advance by using B-mode ultrasound. When the invention works, a patient can lie on the contraceptive ring taking bed by adopting a lithotomy position, and a doctor lifts the seat plate through the telescopic device to obtain a more favorable operation angle; adjusting the position of the movement device to enable the front end of the first forearm to be flush with the second forearm; the angle and the position of the ring-removing forceps are adjusted through the control device, the motion device is started, the motion device automatically and slowly moves forwards along the second rear arm to drive the ring-removing forceps to extend into the vagina, and when the motion device moves to the joint of the second rear arm and the second front arm, the front end of the first front arm is tightly attached to the external orifice of the uterus; when the motion device moves to the second forearm, the first forearm can tightly cling to the front and back walls of the uterus and enter the uterine cavity; in the process, the doctor can hold the handle to finely adjust the advancing direction of the ring removing forceps. After the contraceptive ring is found, the contraceptive ring is clamped by controlling the contraceptive ring taking forceps to enable the moving device to reversely rotate and slowly withdraw along the guide rail, so that the contraceptive ring is taken out of the body of the patient.

Preferably, the moving device 31 comprises a base plate 311, the base plate 311 is rotatably connected with two hollow transverse shafts 312, motors are arranged inside two ends of each transverse shaft 312, a rotating wheel 313 is arranged on an output shaft of each motor, and the motors are in signal connection with the controller; the upper side and the lower side of the guide rail 24 are both provided with sliding grooves 241, and the rotating wheels 313 are clamped in the sliding grooves 241.

As shown in fig. 3, two transverse shafts are rotatably connected to one surface of the base plate facing the guide rail, the inner portion of each transverse shaft is hollow, motors are arranged at two ends of each transverse shaft, rotating wheels are arranged on output shafts of the motors, and 4 rotating wheels are clamped in sliding grooves in the upper side and the lower side of the guide rail. The motor can adopt a micro servo motor, is in signal connection with the controller and receives a pulse signal sent by the controller to adjust the rotating direction and the rotating speed; specifically, when the movement device advances, the two motors above the guide rail rotate counterclockwise, and the two motors below the guide rail rotate clockwise; the moving speed of the motion device must be slow and can be 0.5cm/s, so as to prevent the uterine wall from being damaged. Two transverse shafts pivotally connected to the base plate enable the movement means to correspond to curved portions of the guide rails. The rotating wheels can be made of rubber materials, and the two rotating wheels are tightly clamped in the sliding grooves on the two sides of the guide rail through the transverse shaft so as to obtain enough friction force to prevent the moving device and the guide rail from sliding relatively. The transverse shaft and the substrate can be both made of 304 stainless steel, and a power line and a signal control line of a motor can be arranged in the hollow transverse shaft and are connected out through the rotating connection part of the transverse shaft and the substrate.

Preferably, the first rear arm 34 is hollow inside, and a hollow mounting box 35 is provided towards one end of the movement device 31; a groove 351 is formed in the inner wall of the mounting box 35, a traction device 36 is arranged in the groove 351, the traction device 36 comprises a first rotating shaft 361 which is arranged in the groove 351, a baffle 362, a round wheel 363, a traction wheel 364 and a button 365 which protrudes out of the mounting box 35 are sequentially arranged on the first rotating shaft 361, the baffle 362 is connected with the first rotating shaft 361 in a sliding manner, a plurality of first compression springs 366 are arranged between the baffle 362 and the groove 351, and the round wheel 363, the traction wheel 364 and the button 365 are fixedly connected into a whole and are connected with the first rotating shaft 361 in a rotating manner; a plurality of ratchet teeth 367 are further arranged on the circular wheel, and the width of the ratchet teeth 367 is smaller than that of the circular wheel 363; a second rotating shaft is further arranged on the inner wall of the mounting box 35, and a stop pawl 368 used for limiting the rotating direction of the ratchet 367 is rotatably connected to the second rotating shaft; the inside cavity of first forearm 33 just is provided with third pivot 331, it has two pincers bodies 332 to articulate on the third pivot 331, two be provided with second compression spring 333 between the pincers bodies 332, two pincers bodies 332 all articulate there is branch 334, two branch 334 articulates each other and is provided with haulage rope 37 in articulated department, haulage rope 37 with traction wheel 365 fixed connection.

Each of the parts of the ring removing forceps may be made of 304 stainless steel, including a first anterior arm and a first posterior arm, as shown in FIGS. 4 and 5. The first forearm is hollow, the third rotating shaft can be fixed in the first forearm, and two pliers bodies are hinged with the third rotating shaft. The exposed parts of the two forceps bodies, which are exposed out of the first forearm, are used for clamping the contraceptive ring, in one embodiment, the exposed parts can be 18mm multiplied by 5mm, transverse grains are arranged on the forceps surfaces to enhance the occlusal force, and the forceps heads are smoothened to prevent scratches. For the forceps body, the first forearm can be in a cylindrical shape with a larger radius, and can replace the function of a cervical dilator to dilate the cervix so as to be convenient for pulling out the contraceptive ring.

As shown in fig. 9, two forceps bodies are hinged with a support rod, the two support rods are hinged with each other to form a four-bar structure, and a traction rope is further arranged at the hinged position of the two support rods; a second compression spring is arranged between the two pliers bodies. The pulling rope and the second compression spring provide power for the opening and closing of the pincer body. The traction rope is pulled backwards, and the two clamp bodies rotate oppositely around the third rotating shaft through the four-bar structure to be closed. When the clamp bodies are closed, the compression spring is compressed to accumulate elastic potential energy, and after the traction rope is loosened, the compression spring is reset to enable the two clamp bodies to be opened again.

The traction rope is connected to the traction device, and a doctor can complete the control of the opening and closing of the forceps body through the traction device. As shown in fig. 7 and 8, the traction device comprises a first rotating shaft, a round wheel, a traction wheel and a button are rotatably connected to the first rotating shaft, the round wheel, the traction wheel and the button are fixedly connected into a whole, one end of the traction rope is fixed on the traction wheel, and the traction rope can be pulled by twisting the knob. In order to keep the pincer bodies in an occluded state, the circular wheel is provided with a plurality of ratchets, the inner wall of the mounting box is further rotatably connected with a stop pawl through a second rotating shaft, the stop pawl can be clamped between the two ratchets, so that the circular wheel can only rotate clockwise or anticlockwise to clamp the traction rope and prevent the traction rope from retracting, and the two pincer bodies keep the occluded state.

The mounting box is characterized in that a groove is further formed in the inner wall of the mounting box, the width of the ratchet is smaller than that of the round wheel, a baffle which is connected with the first rotating shaft in a sliding mode is arranged on one side, facing the groove, of the round wheel, and a plurality of first compression springs are arranged between the baffle and the groove. When the two pliers bodies need to be opened, the button is pressed down to press the ratchet on the circular wheel into the groove to be separated from the stop pawl, the stop pawl does not block the circular wheel any more, the second compression spring resets to spring the two pliers bodies, and the traction rope is pulled to reset. After the button is loosened, the first compression spring drives the baffle and the round wheel to reset, and the stop pawl is clamped between the two ratchets again. The first compression spring and the second compression spring can be made of 65Mn spring steel, and the traction rope can be made of a nylon rope with small elasticity.

Preferably, a torsion spring is disposed between the stopping jaw 368 and the second rotation shaft.

The torsion spring can be made of 65Mn spring steel and is used for enabling the locking claw to be tightly attached to the surface of the circular wheel all the time and preventing the locking claw from being out of position.

Preferably, the first forearm 33 is further provided with an image acquisition unit 335 and a fill-in light 336, the controller includes an image processing module, and the image processing module is in signal connection with the image acquisition unit 335 and the fill-in light 336.

As shown in fig. 9, the image acquisition unit can adopt a miniature high-definition wide-angle camera, the diameter of the camera is generally 4-5 mm, the camera is arranged at the front end of the first front arm, and an instant operation visual field in the advancing direction of the contraceptive ring removing forceps is provided for a doctor so as to reduce the difficulty of finding the contraceptive ring and improve the operation efficiency. The light supplement lamp can adopt LED lamp beads to provide illumination for the image acquisition unit. The image processing module runs in the form of a program, and the carrier of the image processing module can be a computer, a notebook computer and other computing equipment capable of processing image information, and further comprises a display device. The image acquisition unit, the light filling lamp and the controller are in signal connection, the controller converts analog signals obtained by the image acquisition unit into digital signals and then transmits the digital signals to the display device, and a doctor obtains the surgical field of vision through the display device.

Preferably, the end of the first rear arm 34 facing the mounting box 35 is further provided with a knob 38, and the knob 38 is rotatably connected with the mounting box 35.

The knob may be made of 304 stainless steel, is fixedly connected with the first rear arm, and is rotatably connected with the mounting box, as shown in fig. 7. The position of the intrauterine device in the uterus is not fixed, and the knob can drive the contraceptive ring removing forceps to rotate so as to adjust the direction of the forceps body and more conveniently clamp the intrauterine device.

Preferably, the length of the first rear arm 34 is >12 cm.

The length of the female vagina is generally 7-12 cm, the length of the first rear arm is larger than 12cm, and the application range is wider.

Preferably, the guide rail 24 is connected with a sliding sleeve 28 in an interference manner, and the sliding sleeve 28 is rotatably connected with the connecting rod 23; the first rear arm 34 and the guide rail 24 are also provided with scales.

As shown in fig. 12, a sliding sleeve is further arranged between the guide rail and the connecting rod, the sliding sleeve is in interference connection with the guide rail, the guide rail can slide relative to the sliding sleeve while the tightness is maintained, and the relative position of the guide rail and the patient is changed on the premise that the angle of the guide rail is not changed. The sliding sleeve can be made of 304 stainless steel. Still be provided with the scale on first back arm and the guide rail, conveniently observe the length that ring forceps stretched into the patient in vivo and the position of accurate control guide rail.

When the length of the first rear arm is longer than the length of the vagina of a patient, the ring-removing forceps are close to the external orifice of the uterus, but the motion device does not reach the joint of the second rear arm and the second front arm, so that the angle of the ring-removing forceps cannot be changed, and the ring-removing forceps are not beneficial to entering the uterus. At the moment, the distance between the motion device and the joint of the second front arm and the second rear arm can be known through the scales, and the guide rail slides backwards out of the distance, so that the motion device moves to the joint of the second front arm and the second rear arm when the ring forceps are close to the external orifice of the uterus.

Preferably, the sum of the lengths of the first front arm 33 and the exposed part of the forceps body is equal to the length of the second front arm 26, and the sum of the lengths is 4-6 cm.

As shown in fig. 9, the sum H1 of the lengths of the parts of the first forearm and the part of the forceps body exposed out of the first forearm is equal to the length H2 of the second forearm, is 4-6 cm, is slightly less than the depth of a uterine cavity of a female, and can touch most parts of the uterus.

Preferably, a fastening device 27 is arranged at the connection position of the base 22 and the connecting rod 23 and the connection position of the connecting rod 23 and the guide rail 24, the fastening device 27 comprises a rotating shaft 271 and a nut 272, and the rotating shaft 271 and the nut 272 are in threaded connection.

Base and connecting rod, connecting rod and guide rail all rotate to be connected, in order to obtain more firm structure after the angular adjustment who gets the ring pincers finishes, be provided with fastener in base and connecting rod, connecting rod and guide rail junction, including axis of rotation and nut, but both threaded connection screws up the nut, increases the frictional force between base and connecting rod, connecting rod and the guide rail to increase the fastening degree. As shown in fig. 11, at the connection position of the connecting rod and the guide rail, the rotating shaft is fixedly connected with the guide rail, the connecting rod can be in interference connection with the rotating shaft, and the nut is arranged on the outer side of the connecting rod and in threaded connection with the rotating shaft. The rotating shaft and the nut can be made of 304 stainless steel.

While the present invention has been described in terms of various specific embodiments, it is understood that these embodiments are not intended to limit the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the spirit of the invention, which falls within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a gynaecology is with getting ring bed, includes base (1), be provided with seat (11) on base (1), its characterized in that: the seat plate (11) is rotatably connected with the base (1), and a telescopic device (12) is hinged between the seat plate and the base (1);

the seat is characterized by further comprising an operation device (2), wherein the operation device (2) is connected to the seat plate (11) through a support (21), the operation device comprises a base (22) arranged on the support (21), a connecting rod (23) rotatably connected with the base (22) and a guide rail (24) rotatably connected with the connecting rod (23), and a handle (25) is arranged on the guide rail (24);

the guide rail (24) is also provided with a ring taking device (3), and the ring taking device (3) comprises a moving device (31) capable of moving along the guide rail and ring taking pincers (32) arranged on the moving device (31);

the ring removing forceps (32) comprise a first front arm (33) and a first rear arm (34), the guide rail (24) comprises a second front arm (26) and a second rear arm, and the sum of included angles between the first front arm (33) and the first rear arm (34) and between the second front arm (26) and the second rear arm is 15-30 degrees;

the device also comprises a controller which is in signal connection with the moving device (31) and the telescopic device (12).

2. The gynecological contraceptive ring removal bed according to the claim 1, characterized in that: the moving device (31) comprises a substrate (311), the substrate (311) is rotatably connected with two hollow transverse shafts (312), motors are arranged inside two ends of each transverse shaft (312), output shafts of the motors are provided with rotating wheels (313), and the motors are in signal connection with the controller; the upper side and the lower side of the guide rail (24) are provided with sliding grooves (241), and the rotating wheels (313) are clamped in the sliding grooves (241).

3. The gynecological contraceptive ring removal bed according to the claim 1, characterized in that: the first rear arm (34) is hollow inside, and a hollow mounting box (35) is arranged at one end facing the moving device (31);

the inner wall of the mounting box (35) is provided with a groove (351), a traction device (36) is arranged in the groove (351), the traction device (36) comprises a first rotating shaft (361) arranged in the groove (351), a baffle plate (362), a round wheel (363), a traction wheel (364) and a button (365) protruding out of the mounting box (35) are sequentially arranged on the first rotating shaft (361), the baffle plate (362) is in sliding connection with the first rotating shaft (361), a plurality of first compression springs (366) are arranged between the baffle plate and the groove (351), and the round wheel (363), the traction wheel (364) and the button (365) are fixedly connected into a whole and are in rotating connection with the first rotating shaft (361); a plurality of ratchet teeth (367) are further arranged on the circular wheel, and the width of the ratchet teeth (367) is smaller than that of the circular wheel (363); a second rotating shaft is further arranged on the inner wall of the mounting box (35), and a stop pawl (368) used for limiting the rotating direction of the ratchet (367) is rotatably connected to the second rotating shaft;

first forearm (33) inside cavity just is provided with third pivot (331), it has two pincers bodies (332) to articulate on third pivot (331), two be provided with second compression spring (333) between pincers body (332), two pincers body (332) all articulate branch (334), two branch (334) articulate each other and are provided with haulage rope (37) in articulated department, haulage rope (37) with traction wheel (365) fixed connection.

4. The gynecological contraceptive ring removal bed according to the claim 3, characterized in that: and a torsion spring is arranged between the stop pawl (368) and the second rotating shaft.

5. The gynecological contraceptive ring removal bed according to the claim 3, characterized in that: first forearm (33) still are provided with image acquisition unit (335), light filling lamp (336), the controller includes image processing module, image processing module with image acquisition unit (335), light filling lamp (336) signal connection.

6. The gynecological contraceptive ring removal bed according to the claim 3, characterized in that: one end, facing the mounting box (35), of the first rear arm (34) is further provided with a knob (38), and the knob (38) is rotatably connected with the mounting box (35).

7. The gynecological contraceptive ring removal bed according to the claim 3, characterized in that: the length of the first rear arm (34) is >12 cm.

8. The gynecological contraceptive ring removal bed according to claim 7, wherein: the guide rail (24) is in interference connection with a sliding sleeve (28), and the sliding sleeve (28) is rotationally connected with the connecting rod (23); scales are further arranged on the first rear arm (34) and the guide rail (24).

9. The gynecological contraceptive ring removal bed according to the claim 1, characterized in that: the sum of the lengths of the first front arm (33) and the exposed part of the forceps body is equal to the length of the second front arm (26), and the sum of the lengths is 4-6 cm.

10. The gynecological contraceptive ring removal bed according to the claim 1, characterized in that: the connecting device is characterized in that a fastening device (27) is arranged at the joint of the base (22) and the connecting rod (23) and the joint of the connecting rod (23) and the guide rail (24), the fastening device (27) comprises a rotating shaft (271) and a nut (272), and the rotating shaft (271) is in threaded connection with the nut (272).