CN110720965A - A tibial transverse bone transfer osteotomy for the treatment of diabetic foot - Google Patents

Abstract

The invention relates to the technical field of medical devices, in particular to a tibial transverse bone transfer osteotomy device for treating diabetic foot, comprising a first plate body, a second plate body, a connecting rod, a cutting drill bit and a fixing needle; Each of the board body and the second board body is provided with two, the first board body is provided with a connector, and the second board body is provided with a socket, so that the two first board bodies and the two The second plate body forms a rectangle; the first plate body and the second plate body are provided with an osteotomy hole, and the drill bit is drilled into the tibia of the patient's diabetic foot through the osteotomy hole; the first plate body It includes two sub-plate bodies, and the included angle between the two sub-plate bodies can be adjusted by an angle adjustment mechanism; the two ends of the connecting rod are respectively connected with the two first plate bodies, and there are fixed holes that penetrate through, so that the fixed needle can pass through. The fixation holes are drilled into the patient's diabetic foot tibia. The invention can facilitate the doctor to cut the tibia of the diabetic foot, and can reduce the injury suffered by the patient.

Description

A tibial transverse bone transfer osteotomy for the treatment of diabetic foot

technical field

The invention relates to the technical field of medical devices, in particular to a tibial transverse bone transfer osteotomy device for treating diabetic foot.

Background technique

Diabetic foot is one of the most serious complications of diabetic patients, which is one of the most serious complications of diabetic patients. In the world, every 30 seconds has passed. Zhong had one leg amputated due to diabetic foot. According to statistics, nearly 120,000 people in Europe are amputated due to diabetic foot every year; 70% of the amputations in the world are performed on diabetic foot patients.

At present, diabetic foot can be treated by transverse tibial bone transfer, and its treatment mechanism is that the new microvascular system can be rapidly formed in lower limbs through transverse tibial bone transfer. The theoretical basis is based on the tensile stress law of Ilizarov's biological theory, the slow pulling of biological tissue to generate a certain tension can stimulate tissue regeneration and active growth of blood vessels. The treatment plan is that by laterally pulling the tibial bone block in the lower leg, a set of microvascular system and end-end microvascular fusion can be regenerated from the tibial bone marrow cavity, thereby restoring the blood circulation of the lower extremity, so that the tissue necrosis caused by vascular occlusion tends to be relieved until get well.

In the treatment of diabetic foot with transverse tibial bone transfer, it is necessary to perform osteotomy on the tibia with a freehand electric drill or an osteotome. The operation time is long, and the cut osteotomy block is prone to unevenness, which will cause damage to the bone and periosteum. , bone marrow caused greater damage. Moreover, traditional osteotomy methods are prone to tibial fractures.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a tibial transverse bone transfer osteotomy device for treating diabetic foot, which can facilitate doctors to cut the tibia of diabetic foot, and can reduce the injury suffered by the patient.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A tibial transverse bone transfer osteotomy device for treating diabetic foot comprises a first plate body, a second plate body, a fixing screw, a connecting rod, a cutting drill, a fixing needle and an angle adjusting mechanism;

The first plate body and the second plate body are respectively provided with two, and two ends of the first plate body are respectively provided with a plurality of connectors, and a plurality of the connectors are respectively located on the end face of the first plate body. On both sides, the connectors on both sides of the end face of the first board body are arranged vertically respectively, and one end is fixedly connected to the first board body, and the two ends of the second board body are respectively provided with several Fitted sockets, the connectors at both ends of the first board are embedded in the sockets of the second board, and the fixing screws are respectively inserted into the sockets and the sockets, and are connected with the sockets. The connector and the socket are screwed together, so that the two first plate bodies and the two second plate bodies form a rectangular structure; the first plate body and the second plate body are provided with a row through the osteotomy hole, the drill bit is respectively drilled into the diabetic foot tibia of the patient through the osteotomy hole, so as to cut off the cut part of the diabetic foot tibia;

Both ends of the connecting rod are provided with a first adjusting groove and a second adjusting groove, the cross-section of the first adjusting groove along the radial direction of the connecting rod is an arc structure, and the first adjusting groove is along the connecting rod. The rod is arranged in the axial direction, and one end penetrates through the corresponding end surface of the connecting rod; the second adjusting groove is arranged along the radial direction of the connecting rod, and one end penetrates the surface of the connecting rod, and the first adjustment groove One end of the groove facing away from the end face of the connecting rod is in conductive connection with the second adjusting groove;

Each of the first plate bodies includes two sub-board bodies, and the bottom of one end of the two sub-board bodies is hinged through a hinge. The angle adjustment mechanism includes a sliding rod, a locking rod and a locking nut, and one end of the two sliding rods is respectively It is fixedly connected with the two sub-board bodies, and the other end is embedded in the first adjusting slot and slidingly connected with the first adjusting slot, so that the two sub-board bodies can rotate along the first adjusting slot respectively; One end of the locking rod is embedded in the second adjusting groove and is fixedly connected with the sliding rod, and the locking nut is threadedly connected with the end of the locking rod facing away from the sliding rod, and is connected with the end of the connecting rod. The surface is abutted and fixed, so that the sliding rod can be fixed at any position of the first adjustment groove;

The connecting rod is provided with at least two through fixing holes, the two fixing holes are located between the two second adjusting grooves, and the fixing needle is drilled into the tibia of the patient's diabetic foot through the fixing holes, so as to fix the The first plate body and the second plate body are fixed on the tibia of the diabetic foot.

Further, it also includes an expansion block, the expansion block is provided with a penetrating osteotomy hole, one side of the expansion block is provided with a number of splices that fit with the socket, and a number of the splices are respectively located in the expansion block. On both sides of the side, the splicing pieces on both sides of the side of the expansion block are arranged vertically respectively, and one end is fixedly connected to the expanded block; the two sides of the expansion block facing away from the side of the splicing piece are respectively provided with The splicing port where the splicing piece fits, the expansion blocks can be spliced with each other through the splicing piece and the splicing port, and the fixing screws are respectively penetrated in the splicing piece and the splicing port, and are connected with the splicing port. The connector and the socket are screwed together, so that the two adjacent expansion blocks are fixedly connected;

The splicing piece can be inserted into the socket of the second board, and thread through the splicing piece and the socket through the fixing screw, so as to expand the length of the second board; the connection The rod is a telescopic structure to match the length expansion of the second plate body;

Both sides of each splicing piece in the vertical direction are provided with both connection ports, the connection ports are recessed in the expansion block and fit with the connectors, and the connectors at both ends of the first plate body It can be embedded in the splicing port and the connecting port respectively, and thread through the splicing piece and the splicing port through the fixing screw and threading in the splicing piece and the connecting port to expand the length of the first plate body;

Further, the connecting rod includes a first rod body, a second rod body and a locking screw, the first rod body is embedded in the second rod body, and is slidably connected with the second rod body, and one end of the locking screw is threaded. It is arranged on the second rod body and abuts with the first rod body, and the surface of the first rod body is provided with anti-slip tooth patterns.

Further, the first rod body is provided with a chute, and the second rod body is provided with a slider slidingly matched with the chute.

Further, an end of the locking nut facing the connecting rod is provided with an anti-slip washer, the anti-slip washer is sleeved on the locking rod and is fixedly connected with the locking nut.

Further, two sides of the connecting rod are provided with fixing frames, one end of the fixing frame is fixedly connected with the connecting rod, and the other end is fixedly connected with the second plate body.

Further, the fixing hole is provided with a clamping mechanism, and the clamping mechanism includes a clamping member and a clamping ring, the clamping member is provided with a plurality of clamping members, and one end of the clamping members is arranged around the clamping member. around the fixing hole and fixedly connected with the connecting rod, the end of the clamping piece facing away from the connecting rod is provided with clamping teeth, and the clamping teeth face the axis of the fixing hole; the clamping The ring is a tubular structure with two ends connected, and one point is a connection port, the other end is a clamping port, the connection port is screwed with the outer wall of the clamping piece, the inner wall of the clamping port has a slope, the The inclined surface is inclined towards the axis of the clamping ring in the direction from the connection port to the clamping port, and by screwing the clamping port into the clamping teeth, the clamping port is pressed against the clamping teeth , so that the clamping teeth are clamped and fixed to the fixed needle.

Further, the cutting bit is provided with a limit mechanism, the limit mechanism includes a limit ring, a limit screw and a rotating member, the limit ring is slidably sleeved on the cutting bit, and is provided with a radial direction. a threaded hole that penetrates through, the limit screw is threadedly connected with the threaded hole, and one end can be pressed to the cutting drill bit, so that the limit ring can be fixed on the cutting drill bit; the rotating part is located at the Between the limit ring and the tip of the cutting drill bit, it includes an inner ring and an outer ring, the inner ring and the outer ring are rotatably connected, and the inner ring is rotatably sleeved on the cutting drill bit, the One end face of the inner ring is fixedly connected with the end face of the limiting ring.

The beneficial effects of the present invention are:

1. When the tibia of the diabetic foot needs to be cut, the two first plates and the two second plates after splicing are attached to the tibia of the diabetic foot, and the fixed needle is inserted into the patient's tibia of the diabetic foot through the fixing hole, so as to The first plate body and the second plate body are fixed on the tibia of the diabetic foot. Since the two first plate bodies and the two second plate bodies form a rectangular structure and are provided with penetrating osteotomy holes, the osteotomy holes on the two first plate bodies and the two second plate bodies are arranged in a rectangular structure. The drill bits are respectively drilled into the tibia of the diabetic foot of the patient through the osteotomy hole, so that the surrounding area of the tibia of the diabetic foot to be cut is pierced, so that the osteotomy can be completed in a manner similar to stamp cutting. The osteotomy speed is fast, the operation time is shortened, and the complications are reduced. During osteotomy, it can reduce the damage of blood supply around the bone, facilitate the formation of callus, and promote the healing of the bone block and the reconstruction of the bone. The cut bone fragments are uniform, with little damage to the bone, and there is a continuous periosteum, which can reduce the damage to the bone marrow, prevent tibial fractures, facilitate the lateral traction of the bone fragments, and ensure the success rate of the operation. Since the tibia has a certain curvature, in the present invention, the first plate body includes two mutually hinged sub-board bodies, and by adjusting the angle between the two sub-board bodies, the first plate body can have a certain curvature, Therefore, it can be matched with the tibia, so that the first plate body and the second plate body can better fit the tibia, and the accuracy of the cut size is improved; the first adjustment groove can slide with the sliding rod, and the sliding rod and the sub-plate can slide The body is fixedly connected, one end of the locking rod is embedded in the second adjustment groove, and is fixedly connected with the sliding rod. Under the action of the locking rod, the sub-board body can fit on both sides of the connecting rod and realize the sliding connection with the connecting rod. , by tightening the locking nut, so that the locking nut is pressed against the surface of the connecting rod, and the locking rod is fixed at the current position, thereby realizing the fixation of the angle between the two sub-plates. The angle of the body does not change.

2. Since the physical conditions of different patients are different, the size of the tibia to be cut also needs to be determined according to the patient's condition. In the present invention, the splicing piece of the expansion block can be inserted into the socket of the second plate body, and is threaded through the splicing piece and the socket through the fixing screw, so as to realize the expansion of the length of the second board body; The plug-in can be embedded in the splicing port and the connecting port respectively, and thread through the splicing piece and the splicing port through the fixing screw and threading in the splicing piece and the connecting port, so as to realize the expansion of the length of the first board body; After the length and the length of the second plate body are expanded, the expansion blocks are spliced with each other through the splicing piece and the splicing interface, so that the length of the first plate body and the length of the second plate body can be re-spliced into a rectangular structure after expansion, thereby realizing The length of the first plate body and the length of the second plate body are adjusted according to the size of the tibia to be cut, so as to accurately cut the tibia of the diabetic foot.

3. Adjust the position of the limit ring on the cutting drill bit according to the depth of the tibia of the diabetic foot to be cut, screw the limit screw into the threaded hole of the limit ring, and make the limit screw abut on the surface of the cutting drill bit for fixation , so that the limit ring can be fixed at the current position, and at the same time, the rotating part is also fixed at the current position. After the cutting bit is drilled into the osteotomy hole, when the outer ring of the rotating piece touches the osteotomy hole, it proves that the drilling has reached the required depth. When the osteotomy hole touches, the cutting bit will not be resisted by the osteotomy hole, preventing the first plate body and the second plate body from rotating when the rotating piece touches the cutting bit, thus ensuring the safety of the osteotomy while limiting the cutting depth. .

Description of drawings

FIG. 1 is a schematic structural diagram of a tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

2 is an expanded side view of the first plate body of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

3 is an expanded top view of the second plate body of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

4 is a schematic structural diagram of the expansion block of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

5 is a schematic structural diagram of the sub-plate body of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

6 is a schematic structural diagram of the first adjustment groove of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

7 is a schematic structural diagram of the angle adjustment mechanism of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

8 is a schematic diagram of the structure of the first rod body of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

9 is a schematic structural diagram of the clamping mechanism of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention

FIG. 10 is a schematic structural diagram of the cutting drill bit of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention.

11 is a schematic structural diagram of the limiting mechanism of the tibial transverse bone transfer osteotomy device for treating diabetic foot according to a preferred embodiment of the present invention,

In the figure, 11-first plate body, 111-sub-plate body, 112-hinge, 12-second plate body, 13-osteotomy hole, 14-expansion block, 141-splicing piece, 142-joint joint, 143 -Connecting port, 2-Fixing screw, 3-Connecting rod, 301-First rod body, 302-Second rod body, 303-Locking screw, 304-Anti-slip tooth pattern, 305-Chute, 306-Slider, 31- 1st adjustment slot, 32-second adjustment slot, 33-fixed frame, 4-cutting bit, 41-fixed needle, 51-connector, 52-connector socket, 6-slide rod, 61-lock rod, 62-lock Nut, 621-anti-skid gasket, 7-fixing hole, 8-clamping mechanism, 81-clamping piece, 811-clamping tooth, 82-clamping ring, 9-limiting mechanism, 91-limiting ring, 92-limit screw, 93-rotating piece, 931-inner ring, 932-outer ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a co-existence of an intervening component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a co-existing centered component. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIGS. 1 to 11 at the same time. A preferred embodiment of the tibial transverse bone transfer osteotomy device for treating diabetic foot of the present invention is characterized in that it includes a first plate body 11 , a second plate body 12 , and a fixing screw 2 , connecting rod 3, cutting bit 4, fixed needle 41 and angle adjustment mechanism.

The first board body 11 and the second board body 12 are respectively provided with two pieces. The two ends of the first board body 11 are respectively provided with a plurality of connectors 51, and the connectors 51 are respectively located on both sides of the end face of the first board body 11. The connectors 51 on both sides of the end face of a board body 11 are arranged vertically respectively, and one end is fixedly connected to the first board body 11. The two ends of the second board body 12 are respectively provided with a number of sockets 52 that fit with the plug-ins 51. The connectors 51 at both ends of the first board body 11 are inserted into the sockets 52 of the second board 12, and the fixing screws 2 are respectively inserted into the sockets 51 and the sockets 52, and are threadedly connected with the sockets 51 and the sockets 52, so as to The two first plates 11 and the two second plates 12 form a rectangular structure.

The first plate body 11 and the second plate body 12 are provided with a row of osteotomy holes 13 running through the length direction, and the cutting drill bit 4 is respectively drilled into the patient's diabetic foot tibia through the osteotomy hole 13 to cut the diabetic foot tibia. intercept. In this embodiment, the cutting drill bit 4 is clamped and fixed by a medical gun-type electric drill, so that the cutting drill bit 4 can be drilled into the tibia of the patient's diabetic foot by rotating.

Since the two first plates 11 and the two second plates 12 form a rectangular structure and are provided with the osteotomy holes 13 therethrough, the osteotomy holes 13 on the two first plates 11 and the two second plates 12 have a rectangular shape. The structure is arranged, and the cutting drill bit 4 is drilled into the patient's diabetic foot tibia through the osteotomy hole 13 respectively, so that the surrounding diabetic foot tibia to be cut is penetrated, so that the osteotomy can be completed by a similar stamp cutting method, so that the cutting Bone velocity is fast, shortening operation time and reducing complications. In addition, during the osteotomy, the damage of blood supply around the bone is reduced, which is conducive to the formation of callus, and promotes the healing of the bone block and the reconstruction of the bone. The cut bone fragments are uniform, with little damage to the bone, and there is a continuous periosteum, which can reduce the damage to the bone marrow, prevent tibial fractures, facilitate the lateral traction of the bone fragments, and ensure the success rate of the operation.

Both ends of the connecting rod 3 are provided with a first adjusting groove 31 and a second adjusting groove 32 . The direction is set, and one end runs through the corresponding end face of the connecting rod 3 . The second adjusting groove 32 is arranged along the radial direction of the connecting rod 3 and one end penetrates the surface of the connecting rod 3 .

As shown in FIG. 5 to FIG. 7 , each first board 11 includes two sub-boards 111 , and the bottom of one end of the two sub-boards 111 is hinged through a hinge 112 , and the angle adjustment mechanism includes a sliding rod 6 , a locking rod 61 and a locking screw Cap 62, one end of the two sliding rods 6 is fixedly connected with the two sub-plate bodies 111 respectively, and the other end is embedded in the first adjusting groove 31 and slidingly connected with the first adjusting groove 31, so that the two sub-plate bodies 111 can respectively follow the first adjusting groove. 31 rotation; one end of the locking rod 61 is embedded in the second adjusting groove 32 and is fixedly connected with the sliding rod 6, and the locking nut 62 is threadedly connected with the end of the locking rod 61 facing away from the sliding rod 6, and is in contact with the surface of the connecting rod 3 Fixed, so that the sliding rod 6 can be fixed at any position of the first adjusting slot 31 .

Since the tibia has a certain curvature, in this embodiment, the first plate body 11 includes two sub-plate bodies 111 that are hinged to each other. By adjusting the angle between the two sub-plate bodies 111, the first plate body 11 can be With a certain arc, it can fit the tibia, so that the first plate body 11 and the second plate body 12 can better fit the tibia, and the accuracy of the cut size is improved.

Under the action of the second adjusting slot 32 and the locking rod 61 , the sub-board body 111 can fit on both sides of the connecting rod 3 and realize the sliding connection with the connecting rod 3 . After loosening the locking nut 62, the angle between the two sub-plate bodies 111 can be adjusted by pulling the locking rod 61, so that the first plate body 11 can better fit the tibia. By tightening the locking nut 62, the locking nut 62 is pressed against the surface of the connecting rod 3, and the locking rod 61 is fixed at the current position, thereby realizing the fixation of the angle between the two sub-plate bodies 11, ensuring that during the osteotomy process , the angle of the two sub-board bodies 111 will not change.

Preferably, the end of the locking nut 62 facing the connecting rod 3 is provided with an anti-slip washer 621 , and the anti-slip washer 621 is sleeved on the locking rod 61 and is fixedly connected with the locking nut 62 . The anti-skid washer 621 can increase the friction between the locking nut 62 and the connecting rod 3 , and improve the locking stability of the locking nut 62 to the locking rod 61 .

The connecting rod 3 is provided with at least two through fixing holes 7, the two fixing holes 7 are located between the two second adjusting grooves 32, and the fixing needle 41 is drilled into the tibia of the patient's diabetic foot through the fixing holes 7, so that the first plate body 11 and the tibia of the diabetic foot are drilled. The second plate body 12 is fixed on the tibia of the diabetic foot. When the tibia of the diabetic foot needs to be cut, the two first plate bodies 11 and the two second plate bodies 12 after splicing are attached to the tibia of the diabetic foot, and the fixing needle 41 is driven into the tibia of the diabetic foot of the patient through the fixing hole 7 , so as to fix the first plate body 11 and the second plate body 12 on the tibia of the diabetic foot. In this embodiment, the fixed needle 41 is a K-wire.

In this embodiment as shown in FIG. 9 , the fixing hole 7 is provided with a clamping mechanism 8 , and the clamping mechanism 8 includes a clamping member 81 and a clamping ring 82 .

Several clamping members 81 are provided, and one end of the plurality of clamping members 81 is arranged around the fixing hole 7 and is fixedly connected with the connecting rod 3. The end of the clamping member 81 facing away from the connecting rod 3 is provided with clamping teeth 811. , the clamping teeth 811 face the axis of the fixing hole 7 .

The clamping ring 82 is a tubular structure with two ends conducting, and one point is a connection port, the other end is a clamping port, the connection port is threadedly connected with the outer wall of the clamping member 81, the inner wall of the clamping port has a slope, and the slope is along the connection port. The direction of the clamping opening is inclined toward the axis of the clamping ring 82 . By screwing the clamping opening into the clamping tooth 811 , the clamping opening is pressed against the clamping tooth 811 , so that the clamping tooth 811 is clamped and fixed to the fixed needle 41 .

By screwing the clamping ring 82 into the clamping member 81, the clamping opening of the clamping ring 82 presses the clamping teeth 811 against the outer wall of the fixed needle 41, so that the clamping teeth 811 are clamped and fixed to the fixed needle 41, When cutting the tibia, the osteotomy device is prevented from deviating or disengaged from the tibia, which ensures the accuracy of cutting the tibia.

10 and 11, the cutting bit 4 is provided with a limit mechanism 9, the limit mechanism 9 includes a limit ring 91, a limit screw 92 and a rotating member 93, the limit ring 91 is slidably sleeved on the cutting On the drill bit 4, a threaded hole 911 is provided in the radial direction, the limit screw 92 is threadedly connected with the threaded hole 911, and one end can be pressed toward the cutting drill bit 4, so that the limit ring 91 can be fixed on the cutting drill bit 4; The rotating member 93 is located between the limit ring 91 and the tip of the cutting drill bit 4, and includes an inner ring 931 and an outer ring 932, the inner ring 931 and the outer ring 932 are rotatably connected, the inner ring 931 is rotatably sleeved on the cutting drill bit 4, One end surface of the ring 931 is fixedly connected to the end surface of the limiting ring 91 . In this embodiment, the rotating member 93 is a convex bearing structure.

Adjust the position of the limit ring 91 on the cutting drill bit according to the depth of the tibia of the diabetic foot to be cut, screw the limit screw 92 into the threaded hole 911 of the limit ring 91, and make the limit screw 92 and the cutting drill 4 The surface is abutted and fixed, so that the limiting ring 91 can be fixed at the current position, and at the same time, the rotating member 93 is also fixed at the current position.

After the cutting bit 4 is drilled into the osteotomy hole 13, when the outer ring 931 of the rotating member 93 touches the osteotomy hole 13, it proves that the drilling has reached the required depth. It is a rotational connection. When the outer ring 932 is in contact with the osteotomy hole 13, the cutting bit 4 will not be resisted by the osteotomy hole 13, preventing the first plate body 11 and the second plate from being driven when the rotating member 93 and the cutting bit 4 are in contact with each other. The body 12 rotates, thereby injuring the patient's tibia. This embodiment can ensure the safety of osteotomy while limiting the cutting depth.

As shown in FIG. 4 , the present embodiment also includes an expansion block 14. The expansion block 14 is provided with a penetrating osteotomy hole 13. One side of the expansion block 14 is provided with a number of splicing pieces 141 that fit with the socket 52. The splicing pieces 141 are respectively Located on both sides of the side surface of the expansion block 14 , the splicing pieces 141 on both sides of the side surface of the expansion block 14 are arranged vertically respectively, and one end is fixedly connected to the expanded block 14 alternately. The two sides of the expansion block 14 facing away from the side of the splicing piece 141 are respectively provided with a splicing interface 142 that fits with the splicing piece 141 . The component 141 and the splicing port 142 are threadedly connected with the connector 51 and the socket port 52, so that the two adjacent expansion blocks 14 are fixedly connected.

In the side surface of the expansion block 14 of the expansion block 14 in this embodiment, there are three splicing pieces 141 on one side, three connecting ports 143 are provided, and two splicing pieces 141 on the other side are provided, and the connecting ports 143 are the same There are 2 on the ground; in the two sides of the expansion block 14 facing away from the side of the splicing piece 141, there are 3 splicing ports 142 on one side and 2 splicing ports 142 on the other side, wherein the opposite splicing pieces 141 and 142 are provided with The number of splicing ports 142 is the same.

Among the connectors 51 on both sides of the end face of the first board body 11 , there are three connectors 51 on one side and two connectors 51 on the other side; , there are three sockets 52 on one side, and two sockets 52 on the other side.

The splicing piece 141 can be inserted into the socket 52 of the second plate body 12, and is threaded through the splicing piece 141 and the socket 52 through the fixing screw 2 to expand the length of the second board body 12; the connecting rod 3 is a telescopic structure to It is matched with the length expansion of the second plate body 12 .

Both sides of each splicing piece 141 in the vertical direction are provided with both connection ports 143. The connection ports 143 are recessed with the expansion block 14 and fit with the connectors 51. The connectors 51 at both ends of the first board body 11 can be embedded respectively. The splicing port 142 and the connecting port 143 are threaded through the splicing piece 141 and the splicing port 142 and the splicing piece 141 and the connecting port 143 through the fixing screw 2 to extend the length of the first plate body 11 .

Since the physical conditions of different patients are different, the size of the tibia to be cut also needs to be determined according to the patient's condition.

In this embodiment, the splicing piece 141 of the expansion block 14 can be inserted into the socket of the second board body 12 , and is threaded through the splicing piece 141 and the socket 142 through the fixing screw 2 , so as to expand the length of the second board body 12 . The connectors 51 at both ends of the first board body 11 can be embedded in the splicing port 142 and the connecting port 143 respectively, and are threaded through the connector 51 and the splicing port 142 through the fixing screws 2 and are threaded through the connector 51 and the connecting port. 143, the length of the first plate body is extended. After the length of the first plate body 11 and the length of the second plate body 12 are expanded, the expansion blocks 14 are spliced with each other through the splicing piece 141 and the splicing port 142, so that the length of the first plate body 11 and the length of the second plate body 12 After expansion, it can be re-spliced into a rectangular structure, so that the length of the first plate body and the length of the second plate body can be adjusted according to the size of the tibia to be intercepted, so as to accurately intercept the tibia of the diabetic foot.

In this embodiment, the connecting rod 3 includes a first rod body 301, a second rod body 302 and a locking screw 303. The first rod body 301 is embedded in the second rod body 302 and is slidably connected with the second rod body 302. One end of the locking screw 303 is threaded through It is arranged on the second rod body 302 and abuts against the first rod body 301 , and the surface of the first rod body 301 is provided with anti-slip tooth patterns 304 . Under the action of the locking screw 303, the first rod body 301 can be fixed in the second rod body 302, which improves the stability of the splicing of the first plate body 11 and the second plate body 12, and the first plate body 11 and the second plate body 12. The stability of the splicing of the plate body 12 and the expansion block 14 ensures that the spliced first plate body 11 and the second plate body 12 have a stable structure.

Preferably, the first rod body 301 is provided with a sliding groove 305 , and the second rod body 302 is provided with a sliding block 306 slidably matched with the sliding groove 305 . Under the sliding cooperation of the slider 306 and the chute 305, the first rod body 301 and the second rod body 302 are not rotated, and the rotation of the first rod body 301 and the second rod body 302 is avoided. , the splicing structure of the second plate body 12 and the expansion block 14 is damaged.

In this embodiment, two sides of the connecting rod 3 are provided with fixing frames 33 , one end of the fixing frame 33 is fixedly connected with the connecting rod 3 , and the other end is fixedly connected with the second plate body 12 . Under the action of the fixing frame 33 , the stability of the connection between the second plate body 12 and the connecting rod 3 is improved.

When treating the diabetic foot, CT scan is performed on the tibia of the diabetic foot to obtain the structural image of the tibia of the diabetic foot. Adjustments are made to make the first plate body 11 fit better with the tibia. Then tighten the locking nut 62 so that the locking nut 62 is pressed against the surface of the connecting rod 3, the locking rod 61 is fixed at the current position, and the angle between the two sub-plate bodies 11 is fixed at the current position to ensure that during the osteotomy process , the angle of the two sub-board bodies 111 will not change.

According to the size of the required osteotomy, insert the splicing piece 141 of the expansion block 14 into the socket of the second plate body 12 , and thread through the splicing piece 141 and the socket 142 through the fixing screw 2 , so as to connect the second plate body 12 to the socket 141 . length is expanded. The splicing port 142 and the connecting port 143 of the expansion block 14 are embedded on the connectors 51 at both ends of the first plate body 11 , and are threaded through the connector 51 and the splicing port 142 through the fixing screws 2 , and are threaded through the connector 51 . and the connection port 143 to extend the length of the first plate body 11 . After the length of the first plate body 11 and the length of the second plate body 12 are expanded, the expansion blocks 14 are spliced with each other through the splicing piece 141 and the splicing port 142, so that the length of the first plate body 11 and the length of the second plate body 12 After expansion, it can be re-spliced into a rectangular structure.

The angle-adjusted osteotomy device is close to the diabetic foot tibia of the required osteotomy, and the fixing needle 41 is driven into the patient's diabetic foot tibia through the fixing hole 7, so as to separate the first plate body 11 and the second plate. Body 12 is affixed to the tibia of the diabetic foot. Then, the clamping ring 82 is screwed into the clamping member 81, so that the clamping opening of the clamping ring 82 presses the clamping teeth 811 against the outer wall of the fixed needle 41, so as to realize the clamping and fixing of the clamping teeth 811 to the fixed needle 41, Fix the osteotomy device on the tibia of the diabetic foot to be osteotomized.

The distance from the limiter 9 to the tip of the cutting drill bit 4 minus the thickness of the osteotomy device is equal to the cutting depth. According to the required cutting depth of the tibia of the diabetic foot, after adjusting the limit ring 91 to an appropriate position, screw the limit screw 92 into the threaded hole 911 of the limit ring 91, and make the limit screw 92 abut on the surface of the cutting bit 4, so that the limit 91 ring can be fixed at the current position, and the rotating member 93 can also be fixed at the current position. . The cutting drill bit 4 is clamped and fixed by the medical electric drill, the medical electric drill is turned on, and the cutting drill bit 4 is drilled into the patient's tibia of the diabetic foot through the osteotomy hole 13, so that the surrounding area of the tibia of the diabetic foot to be cut is penetrated, thereby Osteotomy can be done in a postage stamp-like cut.

Claims (8)

1. a tibia transverse bone transfer osteotomy device for the treatment of diabetic foot, is characterized in that, comprises the first plate body (11), the second plate body (12), fixing screw (2), connecting rod (3) , a cutting drill (4), a fixed needle (41) and an angle adjustment mechanism; Two of the first plate body (11) and the second plate body (12) are respectively provided, and a plurality of connectors (51) are respectively provided at both ends of the first plate body (11), and a plurality of the The connectors (51) are respectively located on both sides of the end face of the first plate body (11), the connectors (51) on both sides of the end face of the first plate body (11) are respectively arranged vertically, and one end is alternately connected to the end face of the first plate body (11). The first plate body (11) is fixedly connected, the two ends of the second plate body (12) are respectively provided with a plurality of sockets (52) that fit with the plug-in (51), and the first plate body (11) The connectors (51) at both ends are inserted into the sockets (52) of the second board body (12), and the fixing screws (2) are respectively penetrated through the connectors (51) and the sockets (52). ), and is screwed with the connector (51) and the socket (52), so that the two first plates (11) and the two second plates (12) form a rectangular structure; Both the first plate body (11) and the second plate body (12) are provided with a row of through-cutting holes (13) along the length direction, and the drill bits (4) respectively pass through the osteotomy holes (13). ) drilling into the patient's diabetic foot tibia to intercept the cut portion of the diabetic foot tibia; Both ends of the connecting rod (3) are provided with a first adjusting groove (31) and a second adjusting groove (32), and the cross section of the first adjusting groove (31) along the radial direction of the connecting rod (3) It is an arc structure, the first adjustment groove (31) is arranged along the axial direction of the connecting rod (3), and one end penetrates through the corresponding end surface of the connecting rod (3); the second adjustment groove (32) ) is arranged along the radial direction of the connecting rod (3), and one end runs through the surface of the connecting rod (3), and the first adjusting groove (31) faces away from the end corresponding to the end surface of the connecting rod (3) Conductively connected with the second adjustment groove (32); Each of the first board bodies (11) includes two sub-board bodies (111), and the bottom of one end of the two sub-board bodies (111) is hinged through a hinge (112), and the angle adjustment mechanism includes a sliding rod (6) , a locking rod (61) and a locking nut (62), one end of the two sliding rods (6) is fixedly connected with the two sub-board bodies (111) respectively, and the other end is embedded in the first adjusting groove (31) and It is slidably connected with the first adjusting groove (31), so that the two sub-plate bodies (111) can rotate along the first adjusting groove (31) respectively; one end of the locking rod (61) is embedded in the The second adjusting groove (32) is fixedly connected with the sliding rod (6), and the locking nut (62) is threadedly connected with the end of the locking rod (61) facing away from the sliding rod (6), and abutting and fixing with the surface of the connecting rod (3), so that the sliding rod (6) can be fixed at any position of the first adjusting groove (31); The connecting rod (3) is provided with at least two through fixing holes (7), the two fixing holes (7) are located between the two second adjusting grooves (32), and the fixing needle (41) passes through the fixing holes (7). The fixing hole (7) is drilled into the tibia of the diabetic foot, so as to fix the first plate body (11) and the second plate body (12) on the tibia of the diabetic foot. 2. a kind of tibial transverse bone transfer osteotomy device for treating diabetic foot according to claim 1, is characterized in that: also comprises expansion block (14), and described expansion block (14) is provided with through osteotomy A hole (13), one side of the expansion block (14) is provided with a plurality of splicing pieces (141) that fit with the socket (52), and a plurality of the splicing pieces (141) are respectively located in the expansion block (14) On both sides of the side, the splicing pieces (141) on both sides of the side of the expansion block (14) are arranged vertically respectively, and one end is fixedly connected with the expanded block (14); the expansion block (14) faces away from the Both sides of the side surface of the splicing piece (141) are respectively provided with splicing ports (142) that fit with the splicing piece (141), and between the expanding blocks (14), the splicing piece (141) and the The splicing ports (142) are spliced with each other, and the fixing screws (2) are respectively passed through the splicing piece (141) and the splicing port (142), and are connected with the connector (51) and the socket port. (52) screw connection, so that two adjacent expansion blocks (14) are fixedly connected; The splicing piece (141) can be inserted into the socket (52) of the second plate body (12), and is threaded through the splicing piece (141) and the socket through the fixing screw (2). (52), to expand the length of the second plate body (12); the connecting rod (3) is a telescopic structure to match the length expansion of the second plate body (12); Both sides of each of the splicing pieces (141) in the vertical direction are provided with connection ports (143), and the connection ports (143) are recessed in the expansion block (14) and connected with the connector. (51) fit, the connectors (51) at both ends of the first board body (11) can be embedded in the splicing port (142) and the connecting port (143) respectively, and the connectors (51) can be inserted through the fixing screws (2) ) threaded through the splicing piece (141) and the splicing port (142) and through the splicing piece (141) and the connecting port (143) to expand the first plate body ( 11) length. 3. The tibial transverse bone transfer osteotomy device for treating diabetic foot according to claim 2, wherein the connecting rod (3) comprises a first rod body (301), a second rod body (302) and a locking screw (303), the first rod body (301) is embedded in the second rod body (302) and is slidably connected with the second rod body (302), and one end of the locking screw (303) is threaded It is inserted through the second rod body (302) and abuts with the first rod body (301). The surface of the first rod body (301) is provided with anti-slip tooth patterns (304). 4. A tibial transverse bone transfer osteotomy device for treating diabetic foot according to claim 2, characterized in that: the first rod body (301) is provided with a chute (305), and the second rod body is provided with a chute (305). (302) is provided with a slider (306) slidably matched with the chute (305). 5. A tibial transverse bone transfer osteotomy device for treating diabetic foot according to claim 1, characterized in that: one end of the locking nut (62) toward the connecting rod (3) is provided with an anti-slip device A washer (621), the anti-skid washer (621) is sleeved on the locking rod (61), and is fixedly connected with the locking nut (62). 6. A tibial transverse bone transfer osteotomy device for treating diabetic foot according to claim 1, characterized in that: both sides of the connecting rod (3) are provided with a fixing frame (33), and the fixing frame (33) One end is fixedly connected with the connecting rod (3), and the other end is fixedly connected with the second plate body (12). 7. A tibial transverse bone transfer osteotomy device for treating diabetic foot according to claim 1, characterized in that: the fixing hole (7) is provided with a clamping mechanism (8), and the clamping mechanism (8) comprising a clamping piece (81) and a clamping ring (82), a plurality of the clamping pieces (81) are provided, and one end of the plurality of the clamping pieces (81) is arranged around the fixing hole (81). 7), and is fixedly connected with the connecting rod (3), the end of the clamping piece (81) facing away from the connecting rod (3) is provided with a clamping tooth (811), the clamping tooth (811) is facing the axis of the fixing hole (7); the clamping ring (82) is a tubular structure with both ends connected, and one point is a connecting port, the other end is a clamping port, and the connecting port is connected to the other end. The outer wall of the clamping member (81) is screwed together, the inner wall of the clamping port has an inclined surface, and the inclined surface is inclined toward the axis of the clamping ring (82) along the direction from the connection port to the clamping port, By screwing the clamping mouth into the clamping tooth (811), the clamping mouth is pressed against the clamping tooth (811), so that the clamping tooth (811) is very suitable for the fixed needle (811). 41) Clamping and fixing. 8. A tibial transverse bone transfer osteotomy device for treating diabetic foot according to claim 1, characterized in that: the cutting drill (4) is provided with a limiting mechanism (9), and the limiting mechanism ( 9) Including a limit ring (91), a limit screw (92) and a rotating member (93), the limit ring (91) is slidably sleeved on the cutting drill bit (4), and is provided with a radial direction. A threaded hole (911) passing through, the limit screw (92) is threadedly connected with the threaded hole (911), and one end can be pressed toward the cutting bit (4), so that the limit ring (91) Can be fixed on the cutting bit (4); the rotating member (93) is located between the limiting ring (91) and the tip of the cutting bit (4), and includes an inner ring (931) and an outer ring (931) A ring (932), the inner ring (931) is rotatably connected with the outer ring (932), the inner ring (931) is rotatably sleeved on the cutting bit (4), the inner ring (931) One end face is fixedly connected with the end face of the limiting ring (91).

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