CN217366055U

CN217366055U - Axial compression repositor for calcaneal fracture

Info

Publication number: CN217366055U
Application number: CN202122828907.5U
Authority: CN
Inventors: 李振东; 和文宝; 杨云峰; 李兵; 夏江; 周海超
Original assignee: Shanghai Tongji Hospital
Current assignee: Shanghai Tongji Hospital
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-09-06
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to an axial compression restorer for calcaneal fracture, which comprises a first clamp body and a second clamp body; the first clamp body is hinged with the second clamp body through a rotating shaft; the parts of the first clamp body and the second clamp body at the front section of the rotating shaft are both in an oblique and upward bending shape; the head end of the first clamp body is provided with two branch structures, the head end of each branch structure is provided with a solid metal sphere, and the solid metal sphere is connected with a conical sharp instrument; the head end of the second clamp body has no branch structure, and the rest structures are the same as the first clamp body; the first clamp body and the second clamp body are in a connectable fixed structure between the rear sections of the rotating shafts. Its advantages are: the axial pressurization and the double-arm design are adopted, so that the device is suitable for the complicated anatomical characteristics of calcaneus, the operation difficulty is reduced, and the holding force between the device and a bone block is increased.

Description

Axial compression repositor for calcaneus fracture

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a calcaneus fracture axial pressurization restorer.

Background

In clinical work of ankle surgery, calcaneus fracture is relatively common, and when incision reduction surgery is performed, anatomical reduction is required to be optimal, so that the postoperative function of a patient is close to that of a normal person as much as possible. The calcaneus fracture is not healed, but abnormal healing, namely height loss, mismatching of articular surfaces, lateral bulging and abnormal force lines, is frequently caused, so that anatomical reduction is required to be achieved. Methods for intraoperative reduction of bone mass currently typically use tools such as distractors, k-wire periosteum dissectors, and tissue clamps. However, because the calcaneus bone structure is complex, sometimes the operation is difficult by using the above-mentioned apparatus, and the anatomical reduction of the displaced bone block is difficult in the operation. Especially when the heel bone fracture is two or more parts in front and back, the current apparatus is difficult to play a good reset effect and the operation difficulty is very big, the operation time is increased, and the repeated operation can also cause trauma to peripheral nerve blood vessels, resulting in postoperative complications. In addition, the kirschner wire, the vascular forceps and the tissue forceps are used as a resetting device, on one hand, the holding force is weak, and the bone block is easy to slip off during the operation in the operation, so that the repeated operation in the operation is caused; on the other hand, since they are not dedicated compression reduction devices, there is a high possibility that these instruments are damaged or cause a medically-derived fracture in surgery when they are improperly used. The existing calcaneus reduction device also has the defects of difficult axial reduction, insufficient holding force and the like.

Chinese patent documents: CN201420731733.8, application date 2014.11.28, patent names: a calcaneus inclined forceps restorer. The utility model discloses a calcaneum diagonal forceps restorer, including the pincers body, the pincers body includes and connects in integrative first pincers body and second pincers body through the pivot, the head end of first pincers body and second pincers body respectively is equipped with a solid spherical blunt head of metal, a toper sharp ware is connected to the solid spherical blunt head of metal, the two forms a closed framework in the part of pivot anterior segment when the toper sharp ware of first pincers body and second pincers body each other contacts, and the part of first pincers body and second pincers body at the pivot anterior segment all is ascending crooked shape in the slant, the tail end of first pincers body and second pincers body respectively is equipped with a latch closure, be located the first pincers body at pivot rear and be fixed with the screw rod, the other end of screw rod passes the second pincers body and is provided with the nut on the screw rod of wearing out the second pincers body.

Chinese patent documents: CN201620441070.5, application date 2016.05.16, patent names: a compression repositor for calcaneal fracture. Discloses a calcaneus fracture compression repositor, belongs to the technical field of orthopedic medical instruments, and is used for compression reposition of calcaneus fracture. The technical scheme is as follows: the utility model discloses a clamp formula structure, the face parallel of two splint is relative, and splint clamp holds two handles tightly in the calcaneus both sides that need reset, and two splint exert pressure in the middle of calcaneus both sides side direction, carry out the operation that resets of calcaneus fracture, reach the purpose of correcting calcaneus widen deformity. The pressing balls and the springs on the two splints can have better adaptability to the fracture part, and the whole even flexible pressing is carried out along with the different heights of the fracture part, thereby achieving better pressing reset effect.

The calcaneus diagonal forceps restorer in the patent document CN201420731733.8 is characterized in that a first forceps body and a second forceps body are connected into a whole through a rotating shaft, the head ends of the first forceps body and the second forceps body are respectively provided with a solid spherical metal blunt head, the solid spherical metal blunt head is connected with a conical sharp device, and the first forceps body and the second forceps body form a closed frame body at the part of the front section of the rotating shaft when the conical sharp devices are contacted with each other; and a calcaneus fracture pressurization restorer in patent document CN201620441070.5, then through clamp type structure, the face parallel of two splint is relative, splint clamp is in the calcaneus both sides that need reset, hold tightly two handles, two splint are in designs such as the middle application of pressure of calcaneus both sides side direction, the utility model discloses a calcaneus fracture restorer's pioneering, simple structure has, convenient to use, the pressurization is even reliable, the effectual advantage resets, can reset the operation to calcaneus fracture under soft closed state such as skin, muscle, correct calcaneus widen deformity, the defect of traditional operation method has been avoided, created the advantage for carrying out minimal access surgery. However, there is no report on an axial compression repositor for calcaneal fracture, which adopts axial compression and double-arm design, so as to adapt to the complicated anatomical features of the calcaneus, reduce the difficulty of the operation and increase the holding force between the instruments and the bone pieces.

In view of the above, there is a need for an axial compression repositor for calcaneal fracture, which adopts axial compression and double-arm design, so as to adapt to the complicated anatomical features of the calcaneus, reduce the difficulty of the operation, and increase the holding force between the instruments and the bone pieces.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, provide one kind and adopt axial pressurization and both arms design to be adapted to the complicated anatomical features of calcaneum, reduce the operation degree of difficulty, increased a calcaneum fracture axial pressurization restorer of controlling the power between apparatus and the bone piece.

In order to achieve the purpose, the utility model adopts the technical proposal that:

an axial compression repositor for calcaneal fracture comprises a first forceps body and a second forceps body; the first clamp body is hinged with the second clamp body through a rotating shaft; the parts of the first clamp body and the second clamp body at the front section of the rotating shaft are both in an oblique and upward bending shape; the head end of the first clamp body is provided with two branch structures, the head end of each branch structure is provided with a solid metal ball, and the solid metal ball is connected with a conical sharp device; the head end of the second clamp body has no branch structure, and the rest structures are the same as the first clamp body; the inner side of the rear section of the first clamp body is provided with a hollowed-out insertion piece, and the inner side of the rear section of the second clamp body is provided with a hollowed-out slot which is mutually embedded with the insertion piece; the inserting pieces and the slots are also provided with screws and nuts in hollow shapes; the tail ends of the first clamp body and the second clamp body are respectively provided with a buckle.

The utility model has the advantages that:

1. all be oblique ascending bending shape through the part of first pincers body and second pincers body at the pivot anterior segment, and first pincers body head end is equipped with the design of two branch structures, arranges two of first pincers body in calcaneus tubercle both sides in the art, and the second pincers body is arranged in near calcaneus cuboid joint calcaneus side, alright carry out the pressurization effect that resets to the bone piece.

2. The utility model discloses a calcaneum fracture axial pressurization restorer compares with current calcaneum pressurization resetting apparatus, and this application adopts the pressurized mode of axial, is adapted to the complicated anatomical features of calcaneum, reduces the operation degree of difficulty, has avoided causing the wound to the neurovascular on every side to and lead to the production of postoperative complication.

3. Through the design that first pincers body front end is branch column structure, increased the power of controlling between apparatus and the bone piece, operation in the simplification art saves the operation time, and the bone piece is difficult to the slippage when operating in the art, avoids operating repeatedly in the art or improper and damaging the apparatus or cause the problem of the source of the nature fracture in the art.

Drawings

Fig. 1 is a schematic plane structure diagram of the axial compression repositor for calcaneal fracture of the utility model.

FIG. 2 is a schematic diagram of the connection structure of the first clamp body and the second clamp body rear section of the axial compression repositor for calcaneal fracture.

Fig. 3 is a schematic view of the mutual matching structure of the insertion sheet, the slot, the screw and the nut of the axial compression repositor for calcaneal fracture.

Detailed Description

The invention will be further described with reference to the following examples and with reference to the accompanying drawings.

The reference numerals and components referred to in the drawings are as follows:

1. a first clamp body 11, a rotating shaft

12. Metal solid sphere 13. cone sharp implement

14. Ring buckle 15. inserting piece

16. Slot 17. screw

18. Nut 2. second clamp

Example 1

Please refer to fig. 1-3, fig. 1 is a schematic plane structure diagram of an axial compression repositor for calcaneal fracture, fig. 2 is a schematic connection structure diagram of a first clamp body and a second clamp body rear section of the axial compression repositor for calcaneal fracture, fig. 3 is a schematic structure diagram of the mutual matching of an insertion sheet, a slot, a screw and a nut of the axial compression repositor for calcaneal fracture. An axial compression repositor for calcaneal fracture comprises a first forceps body 1 and a second forceps body 2; the first clamp body 1 is hinged with the second clamp body 2 through a rotating shaft 11; the parts of the first clamp body 1 and the second clamp body 2 at the front section of the rotating shaft are both in an oblique and upward bending shape; the head end of the first clamp body 1 is provided with two branch structures, the head end of each branch structure is provided with a solid metal sphere 12, and the solid metal sphere 12 is connected with a conical sharp device 13; the head end of the second clamp body 2 has no branch structure, and the rest structures are the same as the first clamp body 1; the inner side of the rear section of the first clamp body 1 is provided with a hollowed-out inserting piece 15, and the inner side of the rear section of the second clamp body 2 is provided with a hollowed-out slot 16 which is mutually embedded with the inserting piece 15; the inserting pieces 15 and the slots 16 are also provided with screws 17 and screw caps 18 in hollow shapes; the tail ends of the first forceps body 1 and the second forceps body 2 are respectively provided with a ring buckle 14.

It should be noted that: the parts of the first clamp body 1 and the second clamp body 2 at the front section of the rotating shaft are both in an oblique upward bending shape, the head end of the first clamp body 1 is provided with a design of two branch structures, two first clamp bodies 1 are arranged at two sides of a calcaneus tubercle in the operation, and the second clamp body 2 is arranged at the side close to the calcaneus of a calcaneus-cuboid joint, so that the bone blocks can be reset and pressurized; the rear sections of the first clamp body 1 and the second clamp body 2 are mutually embedded through the inserting piece 15 and the slot 1, and are provided with the screw 17 and the screw cap 18, when the fixation is needed, the inserting piece 15 and the slot 16 can be fixed through the matching action of the screw cap 18 and the screw 17, so that the first clamp body 1 and the second clamp body 2 are temporarily fixed when the first clamp body 1 and the second clamp body 2 are respectively arranged on two sides of a root bone joint and on the side close to the calcaneus and cuboid joint calcaneus for resetting and pressurizing satisfactorily; the mutual matching and fixing design of the inserting sheet 15, the slot 16, the screw 17 and the nut 18 is adopted, so that the use is more convenient, and the fixing effect is more stable; the utility model discloses a calcaneum fracture axial pressurization restorer, compare with current calcaneum pressurization restorer apparatus, this application adopts the pressurized mode of axial, be adapted to the complicated anatomical features of calcaneum, reduce the operation degree of difficulty, avoided causing the wound to the neurovascular on every side, and lead to the production of postoperative complication, and the design for branching column structure through 1 front end of the first pincers body, the power of controlling between apparatus and the bone piece has been increased, operation in the simplification art, save operation time, bone piece is difficult to the slippage when operating in the art, avoid operating repeatedly in the art or using improperly and damaging the apparatus or causing the problem of the iatrogenic fracture in the art.

The utility model discloses an axial compression restorer for calcaneal fracture, which adopts the design that the first clamp body and the second clamp body are in oblique and upward bending shapes at the front section of a rotating shaft, the head end of the first clamp body is provided with two branch structures, two first clamp bodies are arranged at two sides of a calcaneal tubercle in the operation, and the second clamp body is arranged at the calcaneal side of a near calcaneal dice joint, so that the bone blocks can be restored and pressurized; the utility model discloses a calcaneum fracture axial pressurization restorer, compare with current calcaneum pressurization restorer apparatus, this application adopts the pressurized mode of axial, be adapted to the complicated anatomical features of calcaneum, reduce the operation degree of difficulty, avoided causing the wound to the neurovascular on every side, and lead to the production of postoperative complication, and be the design of branch column structure through first pincers body front end, the power of controlling between apparatus and the bone piece has been increased, operation in the simplification art, save operation time, bone piece is difficult to the slippage when operating in the art, avoid operating repeatedly in the art or using improperly and damage the apparatus or cause the problem of the iatrogenic fracture in the art.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims

1. The axial compression repositor for calcaneal fracture is characterized by comprising a first forceps body and a second forceps body; the first clamp body is hinged with the second clamp body through a rotating shaft; the parts of the first clamp body and the second clamp body at the front section of the rotating shaft are both in an oblique upward bending shape; the head end of the first clamp body is provided with two branch structures, the head end of each branch structure is provided with a solid metal sphere, and the solid metal sphere is connected with a conical sharp instrument; the head end of the second clamp body is not provided with a branch structure, and the rest structures are the same as the first clamp body; the inner side of the rear section of the first clamp body is provided with a hollowed-out insertion piece, and the inner side of the rear section of the second clamp body is provided with a hollowed-out slot which is mutually embedded with the insertion piece; the inserting pieces and the slots are hollowed out and provided with screws and nuts; the tail ends of the first clamp body and the second clamp body are respectively provided with a buckle.