Atlantoaxial distraction forceps

Abstract

The utility model provides an atlantoaxial distraction clamp, which comprises a clamp body and a clamp mouth, the clamp body comprises two clamp handles hinged through a pin shaft, the inner sides of the two clamp handles are respectively provided with an elastic sheet, one end of each elastic sheet is respectively fixed with the two clamp handles, and the two elastic sheets respectively correspond to a first elastic sheet and a second elastic sheet. The other end of the second elastic piece is fixed with the clamp handle where the first elastic piece is located, dozens of sawteeth arranged at intervals are arranged on the second elastic piece, and the other end of the first elastic piece is clamped with the sawteeth of the second elastic piece; the two plier mouths are arranged in a bent mode, the included angle between each plier mouth and the plier body is an obtuse angle, the end, away from the plier body, of any plier mouth is of a 10 mm * 10 mm blocky structure, anti-skid teeth are arranged on the opposite sides of the two blocky structures respectively, and the anti-skid teeth are cones with the height of 1 mm. According to the utility model, the distance is adjusted by adopting the clamping positions of the sawteeth of the two elastic sheets; the conical anti-skid teeth are adopted and used for opening the atlantoaxial space or the space between the occipital bone and the axis after the screw is placed, and therefore the purpose of resetting / releasing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of distraction forceps, in particular to an atlantoaxial distraction forceps. Background Art

[0002] Orthopedic distraction forceps are commonly used as medical tools in orthopedic surgery, and are widely used in the process of correcting fractures, reconstructing bones or performing spinal surgery. There are the following technical defects: Currently, there is no specific distraction forceps for distracting the atlantoaxial space or the space between the occipital bone and the axis after screw placement.

[0003] Therefore, how to design an atlantoaxial distraction forceps for distracting the atlantoaxial space or the space between the occipital bone and the axis after screw placement has become an urgent problem to be solved. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides an atlantoaxial distraction forceps to solve at least one of the above technical problems.

[0005] The technical scheme of the utility model is: an atlantoaxial distraction pliers, comprising a pliers body and a pliers mouth, the pliers body comprising two pliers handles hinged by a pin shaft, spring sheets are respectively arranged on the inner sides of the two pliers handles, one end of the two spring sheets are respectively fixed to the two pliers handles, the two spring sheets correspond to the first spring sheet and the second spring sheet respectively, the other end of the second spring sheet is fixed to the pliers handle where the first spring sheet is located, the second spring sheet is provided with dozens of saw teeth arranged at intervals, the other end of the first spring sheet is clamped with the saw teeth of the second spring sheet; the two pliers mouths are arranged in a curved manner, the angle between the pliers mouths and the pliers body is an obtuse angle, the end of any pliers mouth away from the pliers body is a block structure of 10mm×10mm, the two block structures are respectively provided with anti-slip teeth on the opposite sides, and the anti-slip teeth are cones with a height of 1mm.

[0006] The utility model adopts the other end of the first spring piece to be clamped with the serrations of the second spring piece to apply an opening elastic force to the two pliers handles; a 10mm×10mm block structure and conical anti-slip teeth are arranged at the end of the pliers mouth away from the pliers body, and the inserted screws are used to expand the surgical area, thereby achieving the purpose of reduction / loosening, etc., and is suitable for expanding the atlantoaxial space or the space between the occipital bone and the axis after screw placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is the front view of the installation structure of the utility model.

[0008] Figure 2 for Figure 1 A partial enlarged view of .

[0009] Figure 3 It is a top view of the installation structure of the utility model.

[0010] In the figure: 1. pliers body; 2. first spring piece; 3. second spring piece; 4. anti-slip teeth; 5. columnar boss; 101. clamping seat; 301. bump. DETAILED DESCRIPTION

[0011] The utility model is further described below in conjunction with the accompanying drawings.

[0012] See also Figure 1-3 The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0013] Embodiment 1: An atlantoaxial distraction forceps, referring to Figure 1 , Figure 2 , including a pliers body 1 and a pliers mouth. The pliers body 1 includes two pliers handles hinged by a pin shaft. The inner sides of the two pliers handles are respectively provided with spring plates, one end of the two spring plates are respectively fixed to the two pliers handles, the two spring plates correspond to the first spring plate 2 and the second spring plate 3 respectively, the other end of the second spring plate 3 is fixed to the pliers handle where the first spring plate 2 is located, and the second spring plate 3 is provided with dozens of saw teeth arranged at intervals, and the other end of the first spring plate 2 is clamped with the saw teeth of the second spring plate 3; the two pliers mouths are arranged in a curved manner, and the angle between the pliers mouth and the pliers body 1 is an obtuse angle, and the end of any pliers mouth away from the pliers body 1 is a block structure of 10mm×10mm, and the two block structures are respectively provided with anti-slip teeth 4 on the opposite sides, and the anti-slip teeth 4 are cones with a height of 1mm; the anti-slip teeth 4 are located at the center of the block structure. The utility model adopts the other end of the first spring piece to be clamped with the serrations of the second spring piece to apply an opening elastic force to the two pliers handles; a 10mm×10mm block structure and conical anti-slip teeth are arranged at the end of the pliers mouth away from the pliers body, and the inserted screws are used to expand the surgical area, thereby achieving the purpose of reduction / loosening, etc., and is suitable for expanding the atlantoaxial space or the space between the occipital bone and the axis after screw placement.

[0014] Embodiment 2: Based on Embodiment 1, the two clamp handles correspond to the first clamp handle and the second clamp handle respectively, the end of the first clamp handle away from the pin is hinged to the first spring sheet 2, and the end of the first clamp handle close to the pin is hinged to the other end of the second spring sheet 3. The utility model adopts the end of the first clamp handle away from the pin to be hinged to the first spring sheet to limit one end of the first spring sheet; adopts the end of the first clamp handle close to the pin to be hinged to the other end of the second spring sheet to limit the other end of the second spring sheet.

[0015] Embodiment 3: Based on Embodiment 2, a clamping seat 101 is provided on the inner side of the second clamp handle, the clamping seat 101 is hinged to the second clamp handle, a first rectangular through hole is provided on the clamping seat 101, one end of the second spring piece 3 passes through the first rectangular through hole, and the sawtooth of the second spring piece 3 can be clamped on the clamping seat 101. The utility model adopts a clamping seat hinged to the second clamp handle, the clamping seat can rotate around the hinge point, one end of the second spring piece passes through the first rectangular through hole of the clamping seat, and the sawtooth that can pass through limits one end of the second spring piece.

[0016] Embodiment 4: Based on Embodiment 2, the first spring piece 2 is an L-shaped structure, the angle of the L-shaped structure is an obtuse angle, and the L-shaped structure is composed of two arc segments, one arc segment is hinged to the first clamp handle, and the outer arc surface of the arc segment is close to the first clamp handle; the inner arc surface of the other arc segment is close to the first clamp handle. The utility model uses two arc segments to form the first spring piece, one arc segment is hinged to the first clamp handle, and limits one arc segment; the inner arc surface of the other arc segment is close to the first clamp handle.

[0017] Embodiment 5: Based on Embodiment 4, a second rectangular through hole is provided on the other arc segment, one end of the second spring piece 3 passes through the second rectangular through hole, and the other end of the second spring piece 3 is riveted to the first clamp handle. The utility model adopts one end of the second spring piece passing through the second rectangular through hole, and the other end of the second spring piece is riveted to the first clamp handle to limit the other end of the second spring piece.

[0018] Embodiment 6: Based on embodiment 5, the other end of the second spring piece 3 is a convex block 301, and a cylindrical block is provided on the side of the convex block 301 close to the pin, and the cylindrical block fits with the inner arc surface of another arc segment of the L-shaped structure. The utility model uses the cylindrical block to fit with the inner arc surface of another arc segment of the L-shaped structure to limit the other end of the second spring piece.

[0019] Embodiment 7: Based on Embodiment 1, Figure 3 The two pliers handles are provided with dozens of columnar bosses 5 arranged at intervals on the end faces of the two pliers handles away from each other, and the cross section of the columnar bosses 5 is semicircular. The utility model adopts the arrangement of columnar bosses on the end faces of the two pliers handles away from each other, which can increase the friction between the pliers handles and the human hand, and play an anti-slip role when in use.

[0020] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An atlantoaxial distraction forceps, comprising a forceps body (1) and a forceps mouth, characterized in that: The pliers body (1) comprises two pliers handles hingedly connected by a pin shaft, the inner sides of the two pliers handles are respectively provided with spring plates, one end of the two spring plates are respectively fixed to the two pliers handles, the two spring plates correspond to the first spring plate (2) and the second spring plate (3), the other end of the second spring plate (3) is fixed to the pliers handle where the first spring plate (2) is located, the second spring plate (3) is provided with dozens of saw teeth arranged at intervals, the other end of the first spring plate (2) is clamped with the saw teeth of the second spring plate (3); the two pliers mouths are arranged in a curved manner, the angle between the pliers mouths and the pliers body (1) is an obtuse angle, the end of any pliers mouth away from the pliers body (1) is a 10mm×10mm block structure, the two block structures are respectively provided with anti-slip teeth (4) on the opposite sides, and the anti-slip teeth (4) are cones with a height of 1mm.

2. The atlantoaxial distraction forceps according to claim 1, characterized in that: The two clamp handles correspond to the first clamp handle and the second clamp handle respectively; one end of the first clamp handle away from the pin shaft is hinged to the first elastic sheet (2); and one end of the first clamp handle close to the pin shaft is hinged to the other end of the second elastic sheet (3).

3. The atlantoaxial distraction forceps according to claim 2, characterized in that: A clamping seat (101) is provided on the inner side of the second clamp handle, the clamping seat (101) is hinged to the second clamp handle, a first rectangular through hole is provided on the clamping seat (101), one end of the second spring sheet (3) passes through the first rectangular through hole, and the saw teeth of the second spring sheet (3) can be clamped on the clamping seat (101).

4. The atlantoaxial distraction forceps according to claim 2, characterized in that: The first spring piece (2) is an L-shaped structure, the included angle of the L-shaped structure is an obtuse angle, and the L-shaped structure is composed of two arc segments, one arc segment is hinged to the first clamp handle, the outer arc surface of the arc segment is close to the first clamp handle; the inner arc surface of the other arc segment is close to the first clamp handle.

5. The atlantoaxial distraction forceps according to claim 4, characterized in that: A second rectangular through hole is provided on the other circular arc segment, one end of the second spring sheet (3) passes through the second rectangular through hole, and the other end of the second spring sheet (3) is riveted to the first clamp handle.

6. The atlantoaxial distraction forceps according to claim 5, characterized in that: The other end of the second elastic piece (3) is a convex block (301), and a cylindrical block is arranged on one side of the convex block (301) close to the pin shaft, and the cylindrical block fits with the inner arc surface of another arc segment of the L-shaped structure.

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