Bone fracture plate clamping tool

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a bone fracture plate clamping tool. The bone fracture plate clamping tool comprises a carrying table and a pressing assembly, a positioning groove is formed in the carrying table, a bone fracture plate is placed in the positioning groove so that a first to-be-machined face of the bone fracture plate can be attached to the groove bottom wall of the positioning groove, and therefore the bone fracture plate is positioned; the pressing assembly is arranged on the carrying table, and the edge of the second to-be-machined face of the bone fracture plate can abut against the carrying table through the pressing assembly; the reserved through hole is formed in the carrying table, and the first to-be-machined face of the bone fracture plate can be partially exposed out of the reserved through hole; by the adoption of the bone fracture plate clamping tool, after the bone fracture plate is clamped, the second to-be-machined face can be machined, the corresponding position of the first to-be-machined face can also be machined from the reserved through hole, and machining of the two machined faces of the bone fracture plate can be completed through one-time clamping and one set of machining equipment; the situation that the size of a finished bone fracture plate is unstable due to the position difference of two times of clamping is avoided, machining steps are simplified, and machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially relates to a bone plate clamping frock. BACKGROUND

[0002] The bone plate is a kind of orthopedic internal fixation device in the form of plate, usually clinical collocation bone screw or bone wire is used.The bone plate is divided into ordinary bone plate and pressurized bone plate, and can be made into different shapes according to different purposes, for example, L type, Y type and T type etc.

[0003] In prior art, two sets of equipment and two sets of frock clamps are used to process bone plate, first set of frock clamp is used to clamp raw material on first set of equipment to process front face, at this time, the back of bone plate cannot be exposed by sticking to the inner side of first set of frock clamp;After front face processing, manually turn over and clamp in second set of frock clamp on second set of equipment to process back face, finally get bone plate finished product.Two clamping steps are complicated and clamping time is long, and two clamping positions are difficult to accurately control, so that bone plate production size is unstable, and the defective rate is high;And two sets of equipment are occupied, equipment utilization rate is low, and input cost is high.

[0004] That is, the front face and back face of the bone plate are processed by clamping on two sets of equipment twice respectively in prior art, and the bone plate production size is unstable and the defective rate is high, the two clamping steps are complicated and time-consuming, and the processing efficiency is low. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a bone plate clamping frock to solve the problem that the front face and back face of the bone plate are processed by clamping on two sets of equipment twice respectively in prior art, and the bone plate production size is unstable and the defective rate is high, the two clamping steps are complicated and time-consuming, and the processing efficiency is low.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a bone plate clamping frock, which comprises:

[0008] A carrier is provided with a positioning groove, and the positioning groove is used to at least partially accommodate a bone plate and abut a first surface to be machined of the bone plate;

[0009] A pressing assembly is arranged on the carrier and used to abut the edge of a second surface to be machined of the bone plate to fix the bone plate;

[0010] The carrier is further provided with a reserved through hole in communication with the positioning groove, and the reserved through hole is used to partially expose the first surface to be machined of the bone plate.

[0011] As an optional technical scheme of the bone plate clamping tool, the reserved through hole comprises a first reserved through hole, and the first reserved through hole is used for exposing the main body of the bone plate.

[0012] As an optional technical scheme of the bone plate clamping tool, the first reserved through hole comprises a waist-shaped long hole and a plurality of through grooves in communication with the waist-shaped long hole, and the plurality of through grooves are arranged side by side and spaced along the extension direction of the waist-shaped long hole.

[0013] As an optional technical scheme of the bone plate clamping tool, the reserved through hole further comprises a second reserved through hole, the second reserved through hole is arranged spaced apart from the first reserved through hole, and the second reserved through hole is used for exposing the handle of the bone plate.

[0014] As an optional technical scheme of the bone plate clamping tool, the carrier comprises a body and a base, the positioning groove, the reserved through hole and the pressing assembly are arranged on the body, and the body is detachably arranged on the base.

[0015] As an optional technical scheme of the bone plate clamping tool, the pressing assembly comprises:

[0016] A pressing piece is used for abutting the bone plate against the positioning groove;

[0017] A locking piece is arranged through the pressing piece and is threadedly connected with the carrier, and the distance between the pressing piece and the carrier is adjustable.

[0018] As an optional technical scheme of the bone plate clamping tool, the carrier further comprises a limiting surface, the limiting surface is in surface contact with the pressing piece, and the limiting surface is used for limiting the arrangement position of the pressing piece.

[0019] As an optional technical scheme of the bone plate clamping tool, the pressing piece comprises a pressing portion and a fitting portion, the locking piece is arranged through the pressing portion, the fitting portion is detachably arranged on the pressing portion, and the fitting portion is used for abutting and pressing the bone plate.

[0020] As an optional technical scheme of the bone plate clamping tool, the pressing piece is provided with a waist-shaped through hole, and the locking piece is slidably arranged in the waist-shaped through hole.

[0021] As an optional technical scheme of the bone plate clamping tool, the pressing assembly is arranged in two rows, and the two rows of pressing assemblies are respectively located on the two sides of the positioning groove.

[0022] Beneficial effects:

[0023] The utility model provides a bone plate clamping frock, this bone plate clamping frock includes the carrier and the compression assembly, through setting the positioning groove on the carrier, and the bone plate is placed in the positioning groove to with the first surface to be processed of bone plate is pasted on the groove bottom wall of positioning groove to the bone plate is positioned, through setting the compression assembly on the carrier, the second surface to be processed edge of bone plate can be pressed to the carrier on bone plate to fix the bone plate, through setting the reserved through -hole on the carrier, the first surface to be processed of bone plate can partially expose from the reserved through -hole, adopt above -mentioned bone plate clamping frock, bone plate after mounting and clamping, second surface to be processed can be processed, also can be processed to the corresponding position of first surface to be processed from the reserved through -hole, mounting and clamping once and using a set of processing equipment can complete the processing of two processing surfaces of bone plate, avoid the size of bone plate finished product unstable because of twice mounting and clamping position difference, simplify the processing step, save processing time, improve processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the processing process diagram of prior art bone plate;

[0025] Figure 2 It is the structure schematic of bone plate clamping frock provided by the utility model embodiment Figure One ;

[0026] Figure 3 It is Figure 2 the local enlarged view of A in

[0027] Figure 4 It is the structure schematic of bone plate clamping frock provided by the utility model embodiment Figure Two ;

[0028] Figure 5 It is the structure schematic of bone plate clamping frock provided by the utility model embodiment Figure Three ;

[0029] Figure 6 It is the structure schematic of bone plate clamping frock provided by the utility model embodiment Figure Four ;

[0030] Figure 7 It is the processing process diagram of the utility model embodiment using bone plate clamping frock.

[0031] In the drawing:

[0032] 100, bone plate;101, main body;102, handle;103, contact notch;

[0033] 10, main body;11, positioning groove;12, first reserved through -hole;121, waist type long hole;122, through groove;13, second reserved through -hole;

[0034] 20, base;

[0035] 30, pressing assembly; 31, pressing member; 311, pressing portion; 312, fitting portion; 32, locking member. DETAILED DESCRIPTION

[0036] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0040] The bone plate is used for fixing fracture of limbs of human body, and the bone plate is usually provided with hole positions or grooves to cooperate with the fixation. For example, the bone plate is provided in an arc shape; a plurality of slot holes and spherical compression screw holes are arranged at one end of the bone plate, and locking screw holes are arranged at the other end, which are particularly suitable for fixing cancellous bone; the locking screw holes can be provided as conical multi-start screw holes or cylindrical multi-start screw holes, the number of starts of the multi-start screw threads in the conical multi-start screw holes or the cylindrical multi-start screw holes can be 2, and the spherical compression screw holes can be provided with a plurality of spherical compression screw holes.

[0041] Generally, the bone plate has two opposite machining surfaces, i.e., a first machining surface and a second machining surface, and machining is usually required to be performed on the two machining surfaces, but the existing clamping tool can only expose one machining surface after clamping each time.

[0042] As shown in Figure 1 , in the prior art, two machining processes are required to complete the machining of the first machining surface and the second machining surface, and the product is clamped twice and processed by two sets of equipment to obtain the bone plate finished product; specifically, the bone plate raw material is clamped on equipment A, manually flipped after machining, clamped on equipment B again, and finally the bone plate finished product is obtained. The clamping positions are difficult to accurately control, which makes the production size of the bone plate unstable.

[0043] For convenience of distinction, the first machining surface is referred to as the back surface of the bone plate 100, and the second machining surface is referred to as the front surface of the bone plate 100. Referring to Figures 2 to 5 , the bone plate 100 includes a main body 101 and a handle 102 connected to the main body; the main body 101 extends in the horizontal direction, and the handle 102 extends in the vertical direction, and the bone plate 100 as a whole has an L shape. The main body 101 and the handle 102 of the bone plate 100 are both provided with fixing screw through holes, and the main body 101 is provided with a compression port communicating with the fixing screw through holes to pass a bone screw; in order to improve the fitting degree of the bone plate 100 and the fractured bone in a small range, contact notches 103 are arranged at the edges of the main body 101 and the handle 102; at the position where the contact notches 103 are arranged, the thickness of the bone plate 100 is thin and easy to deform, so as to keep fit with the fractured bone. In this embodiment, the compression port is located on the front surface of the bone plate 100, and the contact notches 103 are located on the back surface of the bone plate 100.

[0044] As shown in Figures 2 to 7 , the present embodiment provides a bone plate clamping tool, which includes a carrier and a pressing assembly 30; the carrier is provided with a positioning groove 11 for at least partially accommodating the bone plate 100 and abutting against the back surface of the bone plate 100; the pressing assembly 30 is arranged on the carrier and used for abutting against the edge of the front surface of the bone plate 100 to fix the bone plate 100; the carrier is further provided with a reserved through hole communicating with the positioning groove 11, and the reserved through hole is used for exposing part of the back surface of the bone plate 100.

[0045] By setting the positioning groove 11 on the carrier and placing the bone plate 100 in the positioning groove 11 to fit the back surface of the bone plate 100 on the groove bottom wall of the positioning groove 11, the bone plate 100 is positioned; by setting the pressing assembly 30 on the carrier, the pressing assembly 30 can tightly press the front surface edge of the bone plate 100 on the carrier to fix the bone plate 100; by setting the reserved through hole on the carrier, the back surface of the bone plate 100 can be partially exposed from the reserved through hole; by using the above bone plate clamping tool, after the bone plate 100 is clamped, the front surface can be machined, and the corresponding position of the back surface can be machined from the reserved through hole, so that the machining of the two machining surfaces of the bone plate 100 can be completed by clamping once and using a set of machining equipment, the unstable size of the finished bone plate caused by the position difference of two clamping times is avoided, the machining steps are simplified, the machining time is saved, and the machining efficiency is improved.

[0046] In the embodiment, the positioning groove 11 and the bone plate 100 are both L-shaped; the depth of the positioning groove 11 is equal to the thickness of the bone plate 100. In other embodiments, the positioning groove 11 can also be set to other shapes, as long as the shape of the positioning groove 11 matches the shape of the bone plate 100; the depth of the positioning groove 11 can also be set to be greater than or less than the thickness of the bone plate 100.

[0047] Specifically, the carrier includes a body 10 and a base 20, the positioning groove 11, the reserved through hole and the pressing assembly 30 are all arranged on the body 10, and the body 10 is detachably arranged on the base 20. By arranging the detachable body 10 and the base 20, the base 20 can be connected to the machining equipment, when it is necessary to replace the bone plate clamping tool, the body 10 can be directly replaced, and the separate machining of the body 10 and the base 20 is facilitated.

[0048] In order to leave a machining space for the contact notch 103 of the main body 101, the reserved through hole includes a first reserved through hole 12, and the first reserved through hole 12 is used to expose the main body 101 of the bone plate 100; the first reserved through hole 12 includes a waist-shaped long hole 121 and a plurality of through grooves 122 in communication with the waist-shaped long hole 121, and the plurality of through grooves 122 are arranged side by side and spaced apart along the extension direction of the waist-shaped long hole 121. By setting the first reserved through hole 12 to expose the partial area of the main body 101 on the back surface of the bone plate 100, the contact notch 103 on the back surface of the main body 101 can be machined; by setting the waist-shaped long hole 121 and the through groove 122 to constitute the first reserved through hole 12, the waist-shaped long hole 121 can expose the middle position of the bone plate 100, and the through groove 122 can expose part of the edge of the bone plate 100 to leave a machining space for the contact notch 103.

[0049] In the embodiment, the width of the waist-shaped long hole 121 is smaller than the width of the bone plate 100, and the width of the waist-shaped long hole 121 is greater than the diameter of the fixing screw through hole. A stop protrusion is formed between adjacent through grooves 122. By setting the width of the waist-shaped long hole 121 to be smaller than the width of the bone plate 100, the stop protrusion can stop and limit the bone plate 100, ensure the contact area between the bone plate 100 and the carrier, and ensure that the bone plate 100 is stably pressed on the carrier.

[0050] In order to leave processing space for the contact notch 103 of the plate handle 102, the reserved through hole further includes a second reserved through hole 13, which is arranged in a spaced manner with the first reserved through hole 12. The second reserved through hole 13 is used to expose the partial area of the plate handle 102 on the back of the bone plate 100. By setting the second reserved through hole 13, the processing of the contact notch 103 on the plate handle 102 can be completed from the second reserved through hole 13, so as to adjust the fit degree of the plate handle 102 and the fractured bone.

[0051] In order to clamp and fix the bone plate 100, the compression assembly 30 is arranged in two rows, and the two rows of compression assemblies 30 are respectively located on the two sides of the positioning groove 11. By arranging the compression assemblies 30 on the two sides of the positioning groove 11, the compression assemblies 30 can stably compress the bone plate 100 in the positioning groove 11, which is beneficial to ensure the accuracy of the installation position of the bone plate 100. In other embodiments, the arrangement position and the arrangement number of the compression assemblies 30 can be adjusted according to the shape of the bone plate 100.

[0052] In the embodiment, part of the compression assemblies 30 are arranged in a spaced manner on the two sides of the main body 101 of the bone plate 100, and the remaining compression assemblies 30 are arranged in a spaced manner around the plate handle 102 of the bone plate 100.

[0053] Specifically, the compression assembly 30 includes a compression piece 31 and a locking piece 32. The compression piece 31 is used to tightly press the bone plate 100 in the positioning groove 11, and the locking piece 32 is arranged in the compression piece 31 and is threadedly connected with the body 10. The distance between the compression piece 31 and the body 10 is adjustable. By arranging the compression piece 31 and the locking piece 32 in cooperation, the compression piece 31 can adjust the distance from the carrier body 10, so as to adjust the clamping degree, and can also clamp bone plates 100 of different thicknesses, which has a simple structure and is convenient to maintain.

[0054] Referring to Figure 3 and Figure 4The compression part 31 comprises a compression part 311 and a fitting part 312, the locking part 32 is arranged in the compression part 311, and the fitting part 312 is detachably arranged on the compression part 311, and the fitting part 312 is used for fitting the compression bone plate 100. By detachably combining the compression part 311 and the fitting part 312, the fitting part 312 is in contact with the bone plate 100, the fitting part 312 can be replaced according to the material requirement of the bone plate 100, the whole compression part 31 does not need to be replaced, and the applicability of the bone plate clamping tool is improved. Wherein, the compression part 311 is made of metal material; the fitting part 312 is made of flexible material. Optionally, the compression part 311 is provided with a groove, and the surface of the fitting part 312 is provided with a protrusion, the protrusion is clamped in the groove and tightly matched with the groove.

[0055] In order to disassemble and adjust flexibly, the compression part 31 is provided with a waist-shaped through hole, and the locking part 32 is slidably arranged in the waist-shaped through hole. By arranging the waist-shaped through hole, the locking part 32 can adjust the position and angle relative to the compression part 31, and the use flexibility is improved.

[0056] In order to press the position of the bone plate 100, the body 10 is also provided with a limiting surface, the limiting surface is in contact with the surface of the compression part 31, and is used for limiting the setting position of the compression part 31. By limiting the compression part 31 through the limiting surface, the position of the compression part 31 pressing the bone plate 100 is limited, the positions of the plurality of compression parts 31 are guaranteed during machining, and the compression part 31 is prevented from stopping the to-be-machined area of the bone plate 100.

[0057] The following is the specific use process of the bone plate clamping tool:

[0058] The raw material of the bone plate 100 is placed in the positioning groove 11 of the bone plate clamping tool, the bone plate 100 is tightly pressed on the carrier body 10 through the compression assembly 30, the back surface of the bone plate 100 is in contact with the groove bottom wall of the positioning groove 11, all the compression assemblies 30 are adjusted, and the compression part 31 is in contact with the limiting surface of the body 10.

[0059] The bone plate clamping tool is fixed on the equipment A for front machining, after machining, the equipment A drives the base 20 to rotate 180 degrees, so that the back surface of the bone plate 100 faces the cutter of the equipment A, and the cutter of the equipment A is used to machine the limited contact feature (i.e. the contact notch 103 of the main body 101 and the plate handle 102) on the back surface of the bone plate 100 from the reserved through hole position of the body 10, and finally the bone plate finished product is obtained.

[0060] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A bone plate clamping tool, characterized by, The application relates to a bone plate machining device. The device comprises: a carrier provided with a positioning groove (11) for at least partially accommodating a bone plate (100) and abutting a first surface of the bone plate (100) to be machined; a pressing assembly (30) arranged on the carrier and used for abutting an edge of a second surface of the bone plate (100) to be machined to fix the bone plate (100); the carrier is further provided with a reserved through hole in communication with the positioning groove (11), and the reserved through hole is used for exposing a part of the first surface of the bone plate (100) to be machined; the reserved through hole comprises a first reserved through hole (12) used for exposing a main body (101) of the bone plate (100); 2. The bone plate clamping fixture of claim 1, wherein the reserved through hole further comprises a second reserved through hole (13) arranged in a spaced mode with the first reserved through hole (12), and the second reserved through hole (13) is used for exposing a handle (102) of the bone plate (100).

3. The bone plate clamping fixture of claim 1, wherein The first reserved through hole (12) comprises a waist-shaped long hole (121) and a plurality of through grooves (122) in communication with the waist-shaped long hole (121), and the plurality of through grooves (122) are arranged in a spaced mode along the extension direction of the waist-shaped long hole (121).

4. The bone plate clamping fixture of any one of claims 1-3, wherein, The carrier comprises a body (10) and a base (20), the positioning groove (11), the reserved through hole and the pressing assembly (30) are arranged on the body (10), and the body (10) is detachably arranged on the base (20). The pressing assembly (30) comprises: a pressing piece (31) used for abutting the bone plate (100) in the positioning groove (11); 5. The bone plate clamping fixture of claim 4, wherein a locking piece (32) penetrating the pressing piece (31) and in threaded connection with the carrier, and the distance between the pressing piece (31) and the carrier is adjustable.

6. The bone plate clamping fixture of claim 4, wherein The carrier is further provided with a limiting surface abutting the surface of the pressing piece (31) and used for limiting the arrangement position of the pressing piece (31).

7. The bone plate clamping fixture of Claim 4, wherein, The pressing piece (31) comprises a pressing portion (311) and an abutting portion (312), the locking piece (32) penetrates the pressing portion (311), the abutting portion (312) is detachably arranged on the pressing portion (311), and the abutting portion (312) is used for abutting and pressing the bone plate (100).

8. The bone plate clamping fixture according to any one of claims 1-3, characterized in that, The pressing piece (31) is provided with a waist-shaped through hole, and the locking piece (32) slides and penetrates in the waist-shaped through hole. The pressing assembly (30) is arranged in two rows, and the two rows of pressing assemblies (30) are respectively located on the two sides of the positioning groove (11).

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