Amniotic sac supporting anti-pricking device for cervical cerclage operation

Abstract

The utility model relates to the technical field of medical instruments, in particular to an amniotic sac supporting anti-pricking device for cervical cerclage surgery, which comprises a base, a slider, a tray and a supporting rod, square sliding grooves for the slider to slide are formed in the side wall of the base in an annular array, and connecting grooves for connecting blocks to slide are formed in the tops of the sliding grooves; the tray is of a circular structure composed of a plurality of tray units, a driving mechanism is arranged at the bottom of the base to drive the sliding blocks to slide along the sliding grooves, and the top ends of the supporting rods are connected with the driving mechanism. The driving mechanism drives the sliding blocks to move outwards along the sliding grooves so that the connecting blocks and the tray units can be driven to move outwards, the size of the whole tray can be adjusted, the tray suitable for the sizes of different amniotic sacs can be adjusted according to the sizes of the different amniotic sacs to support the amniotic sacs, and trays with different diameters do not need to be prepared for supporting the amniotic sacs.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relates to an amnion sac props up and prevents the device of tying in cervical cerclage operation. BACKGROUND

[0002] Cervical cerclage is through cervical annular suture to reach the recovery cervical normal function, to maintain pregnancy to full term or fetus can survive. Sometimes amnion sac will swell out of the cervical orifice when in gestation period, need to support amnion sac to avoid breaking when in operation.

[0003] The patent with patent name "a kind of silicon gel support that can be used in cervical cerclage" in the existing authorized announcement number CN203953773U needs "can select different diameter tray to carry out bracket according to the size of protruding amnion sac, to guarantee the maximization of surgical field", so it needs to prepare multiple lifting devices to replace according to the size of patient's amnion sac, it is very troublesome.

[0004] Based on the above reasons, the utility model designs a kind of amnion sac props up and prevents the device of tying in cervical cerclage operation, can be adjusted according to different amnion sac size the size of tray to support amnion sac. INVENTION CONTENTS

[0005] The utility model aims at overcoming the insufficient of prior art, provide a kind of amnion sac props up and prevents the device of tying in cervical cerclage operation, when amnion sac swells out of the cervical orifice, amnion sac can be supported by tray, and amnion sac is lifted upwards by supporting rod, expose cervical, it is convenient for medical staff to carry out cervical cerclage operation;In addition, the size of entire tray can be moved outward along with the sliding block being moved outward along with the sliding groove by drive mechanism, so as to be able to adjust, so as to support amnion sac according to different amnion sac size the size of tray, without preparing different diameter tray to carry out bracket.

[0006] In order to realize the purpose of the utility model, the technical scheme adopted by the utility model is:

[0007] The utility model discloses a kind of amnion sac props up and prevents the device of tying in cervical cerclage operation, including base, sliding block, tray and supporting rod, the base is cylindrical structure, its lateral wall is annular array with the square sliding slot for the sliding block sliding, the top of the sliding slot is equipped with the connecting slot for the sliding of connecting block, the width of the connecting slot is less than the width of the sliding slot;The tray is the circular structure of being composed of several fan-shaped structure tray units, the bottom middle of each tray unit is connected with the upper surface of the connecting block, the bottom of the connecting block is connected with the top of the sliding block, the bottom of the base is equipped with drive mechanism drive the sliding block along sliding slot sliding, the top of the supporting rod is connected with the drive mechanism.

[0008] The outer end of the tray unit is an upwardly inclined arc structure, and a plurality of the tray units form the tray for supporting the amniotic sac in a hollow top-opened cylindrical structure.

[0009] The driving mechanism comprises a driving rod, a driving rod slot, a driving disc, a connecting ring, a bottom plate and a sleeve, the bottom of the sliding slot is provided with the driving rod slot for sliding of the driving rod, the width of the driving rod slot is smaller than the width of the sliding slot, the driving rod is in a cylindrical structure, the top end of the driving rod passes through the driving rod slot and is connected with the inner end bottom of the sliding block, the driving disc is in a coaxial cylindrical structure with the base and is arranged below the base, the connecting ring is in an annular structure, the outer diameter of the connecting ring is equal to the outer diameter of the base, the top end of the connecting ring is connected with the bottom end of the base, the thickness of the connecting ring is equal to the thickness of the driving disc, the bottom plate is in a cylindrical structure, the outer diameter of the bottom plate is equal to the outer diameter of the connecting ring, the top outer edge of the bottom plate is connected with the bottom of the connecting ring, the edge of the driving disc is in an annular array and is provided with a plurality of arc-shaped driving holes, the width of the driving hole is equal to the outer diameter of the driving rod, when the side walls of adjacent tray units are in contact, the bottom end of the driving rod is located at the inner end of the driving hole, the middle of the lower surface of the driving disc is provided with the tray rod slot for fixed connection with the top end of the tray rod, the axis of the bottom plate is provided with the tray rod hole for passing of the tray rod, the top end of the sleeve is fixed to the axial bottom of the bottom plate, the inner diameter of the sleeve is equal to the outer diameter of the tray rod, and the bottom end of the tray rod can pass through the bottom end of the sleeve.

[0010] The bottom end of the tray rod is fixed with a power assisting sleeve, the power assisting sleeve is in a hollow top-opened cylindrical structure, the inner diameter of the power assisting sleeve is equal to the outer diameter of the tray rod, the inner wall of the power assisting sleeve is fixedly connected with the bottom end outer wall of the tray rod, and the outer diameter of the power assisting sleeve is greater than the outer diameter of the sleeve.

[0011] The outer wall of the power assisting sleeve and the outer wall of the sleeve are provided with anti-skid lines below.

[0012] The beneficial effects of the utility model lie in that:

[0013] (1) When the amniotic sac protrudes out of the cervical orifice, the tray can support the amniotic sac, the amniotic sac is lifted upward by the tray rod, the cervical orifice is exposed, and the medical staff can easily perform the cervical cerclage operation; in addition, the sliding block is driven by the driving mechanism to move outward along the sliding slot, the connecting block and the tray unit are driven to move outward, the size of the whole tray can be adjusted, the size of the tray suitable for the amniotic sac can be adjusted according to the size of the amniotic sac, the amniotic sac is supported by the tray, and different diameter trays are not needed for support. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1Structure schematic view of the utility model;

[0015] Figure 2 Front view of the utility model;

[0016] Figure 3 For Figure 2 Sectional view along A-A;

[0017] Figure 4 Part structure schematic view of the utility model in removing the bottom plate;

[0018] Figure 5 Part structure schematic view of the utility model in removing the tray;

[0019] Figure 6 Usage state diagram of adjusting the size of the tray in the utility model.

[0020] In the drawing: 1 base, 2 sliding block, 3 tray, 4 supporting rod, 5 sliding groove, 6 connecting block, 7 connecting groove, 8 drive mechanism, 81 drive rod, 82 drive rod groove, 83 drive disc, 85 connecting ring, 86 bottom plate, 87 sleeve, 88 drive hole, 89 supporting rod groove, 90 supporting rod hole, 91 power assisting sleeve, 92 anti-skid pattern. Specific implementation

[0021] The utility model is further explained as follows:

[0022] Please refer to Figures 1-6 ,

[0023] The utility model discloses an amnion sac props up and prevents to tie device for cervical cerclage operation, including base 1, sliding block 2, tray 3 and support rod 4, the base 1 is cylindrical structure, and the lateral wall is annular array and has the square slide groove 5 for the sliding block 2 sliding, the top of slide groove 5 is equipped with the connecting groove 7 for the connecting block 6 sliding, the width of connecting groove 7 is less than the width of slide groove 5, the tray 3 is the circular structure that is composed of a plurality of the tray unit 31 of fan -shaped structure, the bottom middle portion of each tray unit 31 is connected with the upper surface of connecting block 6, the bottom of connecting block 6 is connected with the top of sliding block 2, the bottom of base 1 is equipped with drive mechanism 8 and drives the sliding block 2 along slide groove 5 sliding, the top of support rod 4 is connected with drive mechanism 8, when amnion sac bulges cervical orifice, can support amnion sac through tray, and amnion sac is lifted upwards through support rod, exposes cervical, and it is convenient for medical staff to carry out cervical cerclage operation, in addition, the connecting block and tray unit can be driven to move outward along with the sliding block to drive mechanism and move outward along the slide groove, so as to be able to adjust the size of whole tray, so as to adjust the size of the tray suitable for the size of amnion sac and support amnion sac according to different amnion sac size, need not prepare different diameter tray and support, preferably, tray 3 is made of flexible material such as silica gel, avoids that tray ties up and breaks amnion sac.

[0024] Further, the outer end of the tray unit 31 is inclined upwardly in an arc shape, and the plurality of tray units 31 form the tray 3 in a hollow cylindrical structure with an open top for supporting the amnion sac, so that the middle part of the tray 3 forms a chamber for accommodating the amnion sac, and the outer end of the tray unit 31 is in an arc shape, which is smoother and does not cause damage to the amnion sac.

[0025] Further, the driving mechanism 8 comprises a driving rod 81, a driving rod slot 82, a driving disc 83, a connecting ring 85, a bottom plate 86 and a sleeve 87, the bottom of the sliding slot 5 is provided with the driving rod slot 82 for the sliding of the driving rod 81, the width of the driving rod slot 82 is smaller than the width of the sliding slot 5, the driving rod 81 is in a cylindrical structure, the top end thereof is connected with the inner end bottom of the sliding block 5 through the driving rod slot 82; the driving disc 83 is in a coaxial cylindrical structure arranged below the base 1, the connecting ring 85 is in an annular structure, the outer diameter thereof is equal to the outer diameter of the base 1, the top end of the connecting ring 85 is connected with the bottom end of the base 1, the thickness of the connecting ring 85 is equal to the thickness of the driving disc 83, the bottom plate 86 is in a cylindrical structure, the outer diameter thereof is equal to the outer diameter of the connecting ring 85, the top outer edge of the bottom plate 86 is connected with the bottom of the connecting ring 85; the edge of the driving disc 83 is in an annular array with a plurality of arc-shaped driving holes 88, the width of the driving hole 88 is equal to the outer diameter of the driving rod 81, when the side walls of the adjacent tray unit 31 are in contact, the bottom end of the driving rod 81 is located at the inner end of the driving hole 88; the middle part of the lower surface of the driving disc 83 is provided with the tray rod slot 89 for the fixed connection with the top end of the tray rod 4; the axis of the bottom plate 86 is provided with the tray rod hole 90 for the passing of the tray rod 4, the top end of the sleeve 87 is fixed to the axial bottom of the bottom plate 86, the inner diameter of the sleeve 87 is equal to the outer diameter of the tray rod 4, the bottom end of the tray rod 4 can pass through the bottom end of the sleeve 87.

[0026] Further, the bottom end of the tray rod 4 is fixed with the power assisting sleeve 91, the power assisting sleeve 91 is in a hollow cylindrical structure with an open top, the inner diameter thereof is equal to the outer diameter of the tray rod 4, the inner wall of the power assisting sleeve 91 is fixedly connected with the bottom end outer wall of the tray rod 4, the outer diameter of the power assisting sleeve 91 is greater than the outer diameter of the sleeve 87; the outer wall of the power assisting sleeve 91 and the outer wall of the sleeve 87 are provided with the anti-skid lines 92 below, through the arrangement of the power assisting sleeve 91 and the anti-skid lines 92, the tray rod 4 can be more easily rotated.

[0027] The working process of the driving mechanism: the medical staff holds the outer wall below the sleeve 87 with one hand, holds the outside of the power assisting sleeve 91 with the other hand and rotates clockwise, drives the driving disc 83 and the driving hole 88 to rotate clockwise, the driving rod 81 in the initial state located at the inner end of the driving hole 88 will move towards the outer end of the driving hole 88, at the same time, the driving rod 81 will also move towards the outer end along the driving rod slot 82, since the top end of the driving rod 81 is connected with the bottom end of the sliding block 2, thus drives the connected sliding block 2, connecting block 6 and tray unit 31 to move outward along the direction of the sliding slot 5, so as to realize the adjustment of the diameter size of the tray 3; when the inner diameter of the tray 3 composed of the tray unit 31 meets the size of the amniotic sac, the rotation of the tray rod 4 is stopped.

[0028] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent transformation or direct or indirect application in the related technical field by using the content of the present application specification and drawings is also included in the patent protection scope of the present application.

Claims

1. An amniotic sac support and anti-cervical cerclage device for cervical cerclage surgery, characterized in that: The utility model relates to a kind of amniotic sac supporting device, including base (1), slider (2), tray (3) and support rod (4), the base (1) is cylindrical structure, and the side wall is annular array with the square sliding slot (5) for the slider (2) sliding, the top of the sliding slot (5) is equipped with the connecting slot (7) for connecting block (6) sliding, the width of the connecting slot (7) is less than the width of the sliding slot (5);The tray (3) is circular structure by several tray units (31) of fan-shaped structure, the bottom of each tray unit (31) middle is connected with the upper surface of the connecting block (6), the bottom of the connecting block (6) is connected with the top of the slider (2), the bottom of the base (1) is equipped with driving mechanism (8) driving the slider (2) along sliding slot (5) sliding, the top of the support rod (4) is connected with the driving mechanism (8).

2. An amniotic sac anti-laceration device for use in a cerclage procedure according to claim 1, wherein: The outer end of the tray unit (31) is inclined arc structure upward, and several tray units (31) form the hollow top opening cylindrical structure for supporting amniotic sac.

3. An amniotic sac anti-laceration device for use in a cerclage procedure according to claim 2, wherein: The driving mechanism (8) includes driving rod (81), driving rod slot (82), driving disc (83), connecting ring (85), bottom plate (86) and sleeve (87), the bottom of the sliding slot (5) is equipped with the driving rod slot (82) for the driving rod (81) sliding, the width of the driving rod slot (82) is less than the width of the sliding slot (5), the driving rod (81) is cylindrical structure, and the top end is connected with the inner end bottom of the slider (2) by the driving rod slot (82);The driving disc (83) is coaxial cylindrical structure with the base (1) and is arranged below the base (1), the connecting ring (85) is annular structure, and the outer diameter is equal to the outer diameter of the base (1), the top of the connecting ring (85) is connected with the bottom of the base (1), the thickness of the connecting ring (85) is equal to the thickness of the driving disc (83), the bottom plate (86) is cylindrical structure, and the outer diameter is equal to the outer diameter of the connecting ring (85), and the top outer edge of the bottom plate (86) is connected with the bottom of the connecting ring (85);The edge of the driving disc (83) is annular array with several arc driving holes (88), the width of the driving hole (88) is equal to the outer diameter of the driving rod (81), and when the side wall of adjacent tray unit (31) contacts, the bottom end of the driving rod (81) is located in the inner end of the driving hole (88);The lower surface middle of the driving disc (83) is equipped with support rod slot (89) for fixed connection with the top of the support rod (4);The axis of the bottom plate (86) is equipped with support rod hole (90) for the support rod (4) passing through, the top of the sleeve (87) is fixed to the axial bottom of the bottom plate (86), the inner diameter of the sleeve (87) is equal to the outer diameter of the support rod (4), and the bottom end of the support rod (4) can pass through the bottom end of the sleeve (87).

4. An amniotic sac anti-laceration device for use in a cerclage procedure according to claim 3, wherein: The bottom end of the supporting rod (4) is fixed with a power assisting sleeve (91), which is a hollow cylinder with an open top, the inner diameter of the power assisting sleeve (91) is equal to the outer diameter of the supporting rod (4), the inner wall of the power assisting sleeve (91) is fixedly connected with the bottom end outer wall of the supporting rod (4), and the outer diameter of the power assisting sleeve (91) is greater than the outer diameter of the sleeve (87).

5. An amniotic sac cerclage procedure anti-poking device according to claim 4, characterized in that: The outer wall of the power assisting sleeve (91) and the outer wall of the sleeve (87) are provided with anti-skid lines (92) below.

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