CN210204886U

CN210204886U - Bone lengthening, bone moving and bone malformation corrector

Info

Publication number: CN210204886U
Application number: CN201920668391.2U
Authority: CN
Inventors: Chunpu Zhang; 张纯朴; Yingze Zhang; 张英泽; Jinsheng Zhang; 张津生; Lei Sun; 孙磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-03-31
Anticipated expiration: 2029-05-10

Abstract

The utility model relates to a bone lengthening, bone moving and bone malformation corrector, which comprises a fixed plate and a moving plate; the upper end of the fixed plate is connected with the bone block through a fastener, a sliding groove with an opening at the lower end edge of the fixed plate is formed in the plate surface of the fixed plate, the movable plate is inserted in the sliding groove, the lower end of the movable plate protrudes out of the opening end of the sliding groove and is connected with the bone block through the fastener, teeth are distributed on the side surface of the movable plate, a gear mounting groove is formed in one side of the sliding groove, and an adjusting gear which is meshed with the side surface of the movable plate and drives the movable plate to move in the sliding groove is arranged in the gear mounting groove; and a sealing cover is arranged on the fixing plate. The utility model discloses simple structure, convenient to use, for current other built-in fixators, its operation wound is less relatively, easily control and adjust. The utility model discloses application scope is wide, can satisfy the treatment demand that bone extension, bone moved and bone malformation simultaneously.

Description

Bone lengthening, bone moving and bone malformation corrector

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a bone lengthening, bone moving and bone malformation corrector.

Background

The bone lengthening, namely stretching and osteogenesis, is to cut the bone, reserve soft tissues and blood supply, fix the two ends by adopting a special traction device, gradually apply tension to slowly draw the bone section by applying a tension-stress principle, continuously stimulate organism tissues, stimulate the regeneration potential of the human tissues, form new bones in the osteotomy gaps and achieve the aim of bone regeneration. It is suitable for patients with unequal extremities due to trauma, bone infection, congenital bone shortening, and joint varus and valgus deformity. The bone mobilization technique also follows the tension-stress law of Ilizarov, by fixing each segment of bone with an external fixator, performing minimally invasive osteotomies at one end, slowly pulling daily, and repairing the original bone defect with a new length of bone. The bone moving technology is the most effective method for clinically treating intractable fracture diseases such as bone defect, bone nonunion, bone infection, knee joint stiffness and the like at present, and the bone moving makes the process of treating the complicated and difficult cases before simple and easy. The bone moving can also be used for treating patients with various complications such as bone defect, bone nonunion with bone infection, bone contraction, deformity healing and the like.

The bone extension, bone remove the fixer and fix and can produce traction force to the both ends of disconnected bone usually, thereby promote new bone to form, at present, current fixer common structure is comparatively complicated, the operation is inconvenient, and the operation wound is great, in addition, current fixer also is not suitable for the crooked bone section that the bone deformity leads to and needs the condition of correcting the treatment, the correction treatment of bone deformity needs unilateral cortex to cut off usually, use specific utensil make crooked bone section alignment can, at present, do not have the corrector that can be applicable to bone extension, bone remove and bone deformity correction simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bone extension, bone are removed and are moved, bone deformity corrector to solve the complicated, inconvenient and narrow problem of application scope of current fixer structure of current fixer.

The utility model discloses a realize like this: a bone lengthening, bone moving and bone malformation corrector comprises a fixed plate and a moving plate; the upper end of the fixed plate is connected with the bone block through a fastener, a sliding groove with an opening at the lower end edge of the fixed plate is formed in the plate surface of the fixed plate, the movable plate is inserted in the sliding groove, the lower end of the movable plate protrudes out of the opening end of the sliding groove and is connected with the bone block through the fastener, teeth are distributed on the side surface of the movable plate, a gear mounting groove is formed in one side of the sliding groove, and an adjusting gear which is meshed with the side surface of the movable plate and drives the movable plate to move in the sliding groove is arranged in the gear mounting groove; and a sealing cover is arranged on the fixing plate.

The central shaft of the adjusting gear penetrates through the tail end of the sealing cover and is provided with a rotary shaft head for manual or automatic control.

The sliding groove is a dovetail groove with a trapezoidal section, the moving plate is matched with the sliding groove in shape, and the adjusting gear is a bevel gear matched with the side face of the moving plate.

The gear mounting groove is close to the opening end of the sliding groove.

The utility model discloses simple structure, convenient to use, for current other built-in fixators, its operation wound is less relatively, easily control and adjust. The utility model discloses application scope is wide, can satisfy the treatment demand that bone extension, bone moved and bone malformation simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the present invention for removing the cover.

In the figure: 1. the device comprises a fixed plate, 2, a moving plate, 3, a screw, 4, a sliding groove, 5, teeth, 6, an adjusting gear, 7, a sealing cover, 8, a rotating shaft head, 9, a first bone block, 10 and a second bone block.

Detailed Description

As shown in fig. 1 and 2, the utility model discloses correct the ware and include fixed plate 1 and movable plate 2, fixed plate 1 is long banding plate body, and the both ends of plate body are circular-arc transition, are equipped with a plurality of locating holes in the upper end of fixed plate 1, can pass locating hole and bone piece fixed linking to each other with screw 3. The surface of the fixed plate is provided with a sliding groove 4, the sliding groove 4 extends from the upper end part of the fixed plate 1 along the length direction of the fixed plate and opens at the lower end edge of the fixed plate 1, and the sliding groove 4 can be a conventional groove with a square cross section or a dovetail groove with a trapezoidal cross section.

The shape of the movable plate 2 is matched with the sliding groove 4 and is inserted into the sliding groove 4, the lower end of the movable plate 2 protrudes out of the opening end of the sliding groove 4 and is connected with a bone block through a screw 3, teeth 5 are arranged on the side face of the movable plate 2, a gear mounting groove is arranged on one side of the sliding groove 4 and is close to the opening end of the sliding groove 4, and an adjusting gear 6 which is meshed with the side face of the movable plate and drives the movable plate 2 to move in the sliding groove 4 is arranged in the gear mounting groove. A sealing cover 7 is arranged on the fixing plate 1, and a rotary shaft head 8 for manual or automatic control is arranged at the tail end of the central shaft of the adjusting gear 6, which penetrates out of the sealing cover 7.

When the sliding groove 4 is a dovetail groove, the adjusting gear 6 is a conical gear matched with the corresponding side surface of the moving plate 2, the dovetail groove can prevent the moving plate from slipping off the sliding groove, when the sliding groove 4 is a conventional square groove, a transverse blocking piece can be arranged on the sliding groove, and the sliding of the moving plate from slipping off the sliding groove can also be limited by the sealing cover 7.

When the corrector is applied to bone lengthening and bone moving, the corrector is usually used in pairs, and the using method is as follows:

a. preparing two correctors, and installing the adjusting gear 6 and the moving plate 2 of the correctors in place;

b. placing a corrector on one side of a fractured bone to be treated, enabling the corrector to cross the fractured bone, then connecting the upper end of a fixing plate 1 with a first bone block 9 of the fractured bone by using a screw 3, connecting the lower end of a moving plate 2 with a second bone block 10 of the fractured bone by using the screw 3, after the first corrector is installed, installing a second corrector on the other side of the fractured bone to be treated according to the operation, enabling the two correctors to be tightly clamped on two sides of the fractured bone, and finally covering a sealing cover 7;

c. the treated part is sutured, wherein the rotary shaft head 8 of the corrector is exposed outside the skin, and the length of the moving plate 2 extending out of the sliding groove 4 can be adjusted by manually or automatically controlling the rotary shaft head 8, so as to control the distance between the fractured bones.

When the utility model discloses when using in the correction of bone deformity, the corrector is single use usually, and its method of use is as follows:

a. installing an adjusting gear 6 and a moving plate 2 of the corrector in place;

b. placing the corrector on the concave side of the malformed bone, enabling the corrector to stride over the position to be corrected of the malformed bone, connecting the upper end of the fixed plate 1 with the upper end bone of the position to be corrected by using a screw 3, connecting the lower end of the movable plate 2 with the lower end bone of the position to be corrected by using the screw 3, and finally covering a sealing cover;

c. the treated part is sutured, wherein the rotary shaft head 8 of the corrector is exposed outside the skin, and the length of the moving plate 2 extending out of the sliding groove 4 can be adjusted by manually or automatically controlling the rotary shaft head 8, so that the deformed bone slowly grows linearly according to the direction of the corrector.

Claims

1. A bone lengthening, bone moving and bone malformation corrector is characterized by comprising a fixed plate and a moving plate; the upper end of the fixed plate is connected with the bone block through a fastener, a sliding groove with an opening at the lower end edge of the fixed plate is formed in the plate surface of the fixed plate, the movable plate is inserted in the sliding groove, the lower end of the movable plate protrudes out of the opening end of the sliding groove and is connected with the bone block through the fastener, teeth are distributed on the side surface of the movable plate, a gear mounting groove is formed in one side of the sliding groove, and an adjusting gear which is meshed with the side surface of the movable plate and drives the movable plate to move in the sliding groove is arranged in the gear mounting groove; and a sealing cover is arranged on the fixing plate.

2. The apparatus as claimed in claim 1, wherein the central shaft of the adjusting gear is provided with a rotary shaft head for manual or automatic control through the end of the sealing cover.

3. The bone lengthening, bone moving and bone deformity corrector as claimed in claim 1, wherein the sliding groove is a dovetail groove having a trapezoidal section, the moving plate is in shape fit with the sliding groove, and the adjusting gear is a bevel gear in fit with a side surface of the moving plate.

4. The bone lengthening, bone mobilization, bone deformity corrector of claim 1, wherein the gear installation slot is adjacent to the open end of the sliding slot.