CN210301183U - Locking bone fracture plate - Google Patents

Locking bone fracture plate Download PDF

Info

Publication number
CN210301183U
CN210301183U CN201920304566.1U CN201920304566U CN210301183U CN 210301183 U CN210301183 U CN 210301183U CN 201920304566 U CN201920304566 U CN 201920304566U CN 210301183 U CN210301183 U CN 210301183U
Authority
CN
China
Prior art keywords
screw hole
locking
plate
plate body
fracture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920304566.1U
Other languages
Chinese (zh)
Inventor
张堃
朱养均
衡立松
宋哲
冯东旭
樊伟
蔡枭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN JINXINGDA INDUSTRIAL CO LTD
Tianjin Zhengtian Medical Instrument Co Ltd
Original Assignee
TIANJIN JINXINGDA INDUSTRIAL CO LTD
Tianjin Zhengtian Medical Instrument Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN JINXINGDA INDUSTRIAL CO LTD, Tianjin Zhengtian Medical Instrument Co Ltd filed Critical TIANJIN JINXINGDA INDUSTRIAL CO LTD
Priority to CN201920304566.1U priority Critical patent/CN210301183U/en
Application granted granted Critical
Publication of CN210301183U publication Critical patent/CN210301183U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model discloses a locking bone fracture plate, belonging to the technical field of traumatic orthopedics, which comprises a plate body, wherein an extension part for fixing a free fracture block is arranged on the plate body, and a screw hole is arranged on the extension part; the plate body with the position that the extension is connected is provided with first connection structure, the extension with the position that the plate body is connected is provided with second connection structure, first connection structure and second connection structure cooperate and make the extension can universal regulation and locking. The utility model discloses can reduce incision wound in the art, reduce the operation step, shorten the operation time, alleviate patient's medical burden simultaneously, make the fracture reset completely, avoid the union of fracture deformity.

Description

Locking bone fracture plate
Technical Field
The utility model relates to the technical field of trauma orthopedics, in particular to a locking bone fracture plate.
Background
With the development of society, the diversification of travel modes and activity modes of people and the aging of population, the incidence rate of fracture is also continuously rising. For the treatment of bone fracture, the treatment methods are various, from external fixation to internal fixation, and from extramedullary fixation to intramedullary fixation. Among them, the treatment of fracture by locking the bone plate and fixing it inside is one of the popular fracture treatment methods. Due to the different types of violence, the types of fractures are diversified, from simple transverse fractures to complex comminuted fractures. Therefore, it is difficult to completely fix a fracture, especially a fracture accompanied by displacement of a fracture fragment, with a single locking bone plate in actual clinical operations. In actual operation, an additional bone plate is adopted for assisting fixation or no treatment is carried out under the condition of not influencing functions when free fracture blocks exist. The additional adoption of a bone plate for fixing a fracture block can cause great wound of the incision of a patient and increase the medical cost of the patient. Incomplete reduction can be caused when the fracture block is not processed, fracture deformity healing can be caused after the operation, and particularly, the joint function is not influenced after the fracture healing when the joint position requires accurate anatomical reduction.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a locking coaptation board that can ensure that the fracture piece obtains stabilizing and restores to the throne, reduces incision wound in the art, alleviates patient's medical burden.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
a locking bone fracture plate comprises a plate body, wherein an extension part for fixing a free fracture block is arranged on the plate body, and a screw hole is formed in the extension part;
the plate body with the position that the extension is connected is provided with first connection structure, the extension with the position that the plate body is connected is provided with second connection structure, first connection structure and second connection structure cooperate and make the extension can universal regulation and locking.
Furthermore, the first connecting structure is a ball socket with an opening, the second connecting structure is a C-shaped connecting portion matched with the ball socket, the outer surface of the C-shaped connecting portion is spherical, a screw hole is formed in the middle of the C-shaped connecting portion, and a locking screw capable of enabling the C-shaped connecting portion to be opened is arranged in the screw hole.
Furthermore, the screw hole is in a conical shape with a large upper part and a small lower part;
or the upper part of the screw hole is cylindrical, and the lower part of the screw hole is conical with a large upper part and a small lower part;
or the upper part of the screw hole is in a conical shape with a large upper part and a small lower part, and the lower part of the screw hole is in a cylindrical shape.
Further, the outer surface of the C-shaped connecting part is provided with a step structure.
Furthermore, the first connecting structure is a ball socket with an opening, the second connecting structure is a spherical connecting portion matched with the ball socket, a screw hole communicated with the ball socket is formed in the edge of the ball socket on the plate body, and a locking screw used for fixing the spherical connecting portion in an extruding mode is arranged in the screw hole.
Furthermore, a pressing block is arranged between the spherical connecting part and the locking screw.
Furthermore, the first connecting structure is a ball head extending out of the plate body, the second connecting structure is a clamping plate for clamping the ball head, and a locking device is arranged on the clamping plate.
Furthermore, the locking device is a nut sleeved on the clamping plate through threads or a screw arranged on the clamping plate in a penetrating mode.
Further, the extension part is positioned at the upper end, the lower end and/or the side surface of the plate body.
Further, the extension part is provided with one screw hole, and/or the screw hole is a screw hole or a light hole.
The utility model discloses following beneficial effect has:
the locking bone fracture plate of the utility model is provided with the extension part with the screw hole, and the bone fracture block which is not fixed can be fixed by using the screw to pass through the screw hole in the operation, thereby ensuring that the bone fracture block is stably reset and fixed; the plate body and the extension part are matched and connected through the first connecting structure and the second connecting structure, so that the extension part can be universally adjusted and locked relative to the plate body, and the direction of the extension part can be adjusted according to the specific position of a fracture block in the operation, so that the aim of accurately and firmly fixing the fracture block is fulfilled; the locking bone fracture plate has the advantages that the structural design of the locking bone fracture plate can ensure that most of fracture blocks are fixed and form a whole with the fracture position fixed by the locking bone fracture plate, and bear stress together, so that local stress concentration cannot be caused; the utility model discloses can reduce incision wound in the art, reduce the operation step, shorten the operation time, alleviate patient's medical burden simultaneously, make the fracture reset completely, avoid the union of fracture deformity.
Drawings
FIG. 1 is a schematic view of a locking bone plate according to an embodiment of the present invention;
FIG. 2 is a cross-sectional block diagram of the locking bone plate of FIG. 1 at a second connection, wherein (a), (b), and (C) show that the threaded hole in the middle of the C-shaped connection may take a variety of different shapes;
FIG. 3 is a schematic view of another embodiment of the locking bone plate of the present invention;
FIG. 4 is a cross-sectional view of the locking bone plate of FIG. 3 in a second connection configuration;
fig. 5 is a schematic structural view of another embodiment of the locking bone plate of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model provides a locking bone fracture plate, as shown in figures 1-5, which comprises a plate body 1, wherein the plate body 1 is provided with an extension part 2 for fixing free fracture blocks, the extension part 2 is provided with a screw hole 20, and the unfixed fracture blocks can be fixed by using screws to pass through the screw hole 20 in the operation, so that the fracture blocks can be stably reset and fixed;
the position that plate body 1 and extension 2 are connected is provided with first connection structure 11, and the position that extension 2 and plate body 1 are connected is provided with second connection structure 21, and first connection structure 11 and second connection structure 21 cooperate and make extension 2 can universal regulation and locking.
The surgical procedure can be referred to as follows:
in the operation process, the opening exposes the fracture part, the fracture part is firstly dissected and reset, and the fracture block is temporarily fixed by means of reset forceps or a kirschner wire to maintain the reset. Selecting a bone plate with a proper specification, attaching the bone plate to a proper position, fixing a bone plate main body, drilling, measuring depth, screwing in screws in advance, adjusting the position of an extension part according to the anatomical structure of a patient to enable the extension part to be attached to the bone, drilling, measuring depth, screwing in screws to hold a fracture block, and screwing down all the screws in sequence after the positions of the screws are determined to be proper.
The utility model discloses following beneficial effect has:
(1) the plate body is provided with an extension part with a screw hole, and a bone fracture block which is not fixed can be fixed by using a screw to pass through the screw hole in the operation, so that the bone fracture block is stably reset and fixed;
(2) the plate body and the extension part are matched and connected through the first connecting structure and the second connecting structure, so that the extension part can be universally adjusted and locked relative to the plate body, and the direction of the extension part can be adjusted according to the specific position of a fracture block in the operation, so that the aim of accurately and firmly fixing the fracture block is fulfilled; if the extension part and the plate body are integrally designed, and the direction of the extension part is adjusted by bending the connecting part between the extension part and the plate body in the operation, the connecting part usually has a certain width, so the connecting part can only be bent along the direction vertical to the plate body and can not be bent in the plane of the plate body, thus fracture blocks with slightly long distance can not be fixed (only locking bone fracture plates with different sizes can be replaced, the complexity and the cost of the operation are increased), and if the connecting part can be bent in a universal way, the connecting strength can be weakened, and the expected fixing effect can not be achieved after the fracture blocks are fixed;
(3) the locking bone fracture plate has the advantages that the structural design of the locking bone fracture plate can ensure that most of fracture blocks are fixed and form a whole with the fracture position fixed by the locking bone fracture plate, and bear stress together, so that local stress concentration cannot be caused;
(4) compared with the prior art that an additional bone plate is adopted to assist in fixing the free fracture block, the utility model can reduce incision wound in the operation, reduce operation steps, shorten operation time and simultaneously reduce the medical burden of patients; and for the mode that prior art did not add the processing to free fracture piece, the utility model discloses can make the fracture restore to the throne completely, avoid the union of fracture deformity. The utility model is mainly suitable for fixing the diaphysis and metaphysis fracture blocks of the long bones of the four limbs.
The utility model discloses in, plate body 1 is connected with extension 2 for extension 2 can universal regulation and locking, and this concrete connection mode between the two can adopt following three kinds of modes.
The first method is as follows:
as shown in fig. 1-2, the first connecting structure 11 of the plate body 1 is a ball socket with an opening, the second connecting structure 21 of the extension portion 2 is a C-shaped connecting portion 211 matched with the ball socket, the outer surface of the C-shaped connecting portion 211 is spherical, a screw hole 212 is arranged in the middle of the C-shaped connecting portion 211, and a locking screw 213 capable of opening the C-shaped connecting portion 211 is arranged in the screw hole 212.
When the direction-adjustable fracture fixation device is used, the direction of the C-shaped connecting part is adjusted to be aligned to a fracture block to be fixed, and after the direction is adjusted, the locking screw is screwed down to open and fix the C-shaped connecting part in the ball socket.
Specifically, as shown in fig. 2 (a), the screw hole 212 may be tapered with a large top and a small bottom, so that the C-shaped connecting portion 211 is continuously opened and fixed in the socket as the locking screw 213 is continuously screwed in; alternatively, as shown in fig. 2 (b), the upper portion of the screw hole 212 is cylindrical, and the lower portion of the screw hole 212 is tapered with a larger upper portion and a smaller lower portion, so that the cylindrical portion of the screw hole can better guide the screwing of the locking screw 213, and the C-shaped connecting portion 211 starts to be opened and fixed again when the locking screw 213 enters the tapered portion of the screw hole; alternatively, as shown in fig. 2 (C), the upper portion of the screw hole 212 is tapered with a large upper portion and a small lower portion, and the lower portion of the screw hole 212 is cylindrical, so that when the locking screw 213 enters the tapered portion of the screw hole, the C-shaped connecting portion 211 begins to be opened and fixed, and the cylindrical portion of the screw hole can increase the contact area with the locking screw 213, making the locking screw 213 fixed more firmly.
Furthermore, the outer surface of the C-shaped connecting portion 211 may be provided with a step structure (not shown), and experiments prove that the step structure can significantly increase the friction between the C-shaped connecting portion 211 and the ball socket, and improve the fixation firmness.
The second method comprises the following steps:
as shown in fig. 3-4, the first connecting structure 11 of the plate body 1 is a ball socket with an opening, the second connecting structure 21 of the extension portion 2 is a spherical connecting portion 211 ' matched with the ball socket, a screw hole 212 ' communicated with the ball socket is arranged at the edge of the ball socket on the plate body 1, and a locking screw 213 ' for pressing and fixing the spherical connecting portion 211 ' is arranged in the screw hole 212 '.
When the direction-adjustable ball-shaped connecting part is used, the direction of the ball-shaped connecting part is adjusted to be aligned to a fracture block to be fixed, after the direction is adjusted, the locking screw is screwed, and the side face of the locking screw can extrude the ball-shaped connecting part to be fixed in the ball socket.
In order to improve the fixing effect, a pressing block 214 ' (which may be in an arc shape in particular) may be disposed between the spherical connecting portion 211 ' and the locking screw 213 ', so that the locking screw presses the spherical connecting portion through the pressing block, and the fixing effect is better.
The third method comprises the following steps:
as shown in fig. 5, the first connecting structure 11 of the plate body 1 is a ball head extending from the plate body 1, the second connecting structure 21 of the extension portion 2 is a clamping plate 211 "for clamping the ball head, and the clamping plate 211" is provided with a locking device 212 ".
When the device is used, the direction of the extension part is adjusted to align the extension part with a fracture block to be fixed, and after the direction is adjusted, the locking device is screwed down to clamp the clamping plate and fix the ball head.
To facilitate manipulation of the locking device by the instrument during the procedure, the locking device 212 "may be a nut that is threaded onto the splint when the splint is a front and back splint (i.e., the splint in the embodiment shown in fig. 5) in the plane of the plate body; when the clamping plates are upper and lower clamping plates perpendicular to the plane of the plate body, the locking device 212 ″ can be a screw passing through the clamping plates.
It is understood that, on the basis of the above-mentioned connection manner, the connection between the plate body 1 and the extension portion 2 may also adopt other manners that can be conceived by those skilled in the art, and will not be described herein again.
In the utility model, the plate body 1 can adopt the conventional structure in the prior art, for example, as shown in fig. 1, the whole body is in the shape of a bar, the lower part is slightly narrow, the upper part is slightly wide, and a plurality of screw holes 10 and kirschner wire holes 12 are arranged on the plate body. It can be understood that the plate body 1 may also adopt other shapes and structural design manners known in the art, which do not affect the implementation of the technical solution of the present invention.
In the utility model, the extension part 2 can be positioned at the upper end, the lower end and/or the side of the plate body 1 (the embodiment shown in the figure takes the side positioned on the plate body 1 as an example), and the specific position can be flexibly set according to the requirement; the number of the extending parts 2 can be set according to the number of the fracture blocks needing to be fixed, and can be 1 or a plurality of; the extension part 2 can be designed into a detachable structure, so that the extension part 2 can be increased or reduced at any time to meet different requirements of operations, and the aim of one plate with multiple purposes is fulfilled; in addition, the extension part 2 can also be designed to be pre-bent so as to be better fit with the fracture block. The extension 2 may be made smaller, considering that the fracture block to be fixed is not usually too large, and only one screw hole 20 may be provided, and the screw hole 20 may be a screw hole or a light hole, etc.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A locking bone fracture plate comprises a plate body and is characterized in that an extension part for fixing a free fracture block is arranged on the plate body, and a screw hole is formed in the extension part;
the plate body with the position that the extension is connected is provided with first connection structure, the extension with the position that the plate body is connected is provided with second connection structure, first connection structure and second connection structure cooperate and make the extension can universal regulation and locking.
2. The locking bone plate of claim 1, wherein the first connecting structure is a ball socket with an opening, the second connecting structure is a C-shaped connecting portion matched with the ball socket, the outer surface of the C-shaped connecting portion is spherical, a screw hole is formed in the middle of the C-shaped connecting portion, and a locking screw capable of enabling the C-shaped connecting portion to be opened is arranged in the screw hole.
3. The locking bone plate of claim 2, wherein the screw hole is tapered with a larger top and a smaller bottom;
or the upper part of the screw hole is cylindrical, and the lower part of the screw hole is conical with a large upper part and a small lower part;
or the upper part of the screw hole is in a conical shape with a large upper part and a small lower part, and the lower part of the screw hole is in a cylindrical shape.
4. The locking bone plate of claim 2, wherein the outer surface of the C-shaped connecting portion is provided with a stepped structure.
5. The locking bone plate according to claim 1, wherein the first connecting structure is a ball socket with an opening, the second connecting structure is a spherical connecting portion matched with the ball socket, a screw hole communicated with the ball socket is arranged on the plate body at the edge of the ball socket, and a locking screw for fixing the spherical connecting portion in a compression mode is arranged in the screw hole.
6. The locking bone plate of claim 5, wherein a compression block is disposed between the spherical connecting portion and the locking screw.
7. The locking bone plate of claim 1, wherein the first connecting structure is a ball head extending from the plate body, and the second connecting structure is a clamping plate for clamping the ball head, the clamping plate being provided with a locking device.
8. The locking bone plate of claim 7, wherein the locking device is a nut threaded onto the clamping plate or a screw threaded through the clamping plate.
9. The locking bone plate of any one of claims 1 to 8, wherein the extensions are located at the upper end, lower end and/or sides of the plate body.
10. The locking bone plate according to claim 9, characterized in that the extension is provided with one of the screw holes and/or the screw hole is a screw hole or a light hole.
CN201920304566.1U 2019-03-11 2019-03-11 Locking bone fracture plate Active CN210301183U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920304566.1U CN210301183U (en) 2019-03-11 2019-03-11 Locking bone fracture plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920304566.1U CN210301183U (en) 2019-03-11 2019-03-11 Locking bone fracture plate

Publications (1)

Publication Number Publication Date
CN210301183U true CN210301183U (en) 2020-04-14

Family

ID=70122584

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920304566.1U Active CN210301183U (en) 2019-03-11 2019-03-11 Locking bone fracture plate

Country Status (1)

Country Link
CN (1) CN210301183U (en)

Similar Documents

Publication Publication Date Title
US9370386B2 (en) Plating concept for distal radial fractures
US7537596B2 (en) Bone plates with intraoperatively tapped apertures
JP5215285B2 (en) Modular fracture fixation plate system
US9387020B2 (en) Bone plate system for repair of proximal humeral fracture
US7909858B2 (en) Bone plate systems using provisional fixation
EP1567071B1 (en) Adjustable bone plates
US20150272638A1 (en) Bone plate with versatile screw holes
US20080306479A1 (en) Fixation device for proximal elbow fractures and method of using same
US20070043368A1 (en) Distal humeral plate
CN210301183U (en) Locking bone fracture plate
CN214761410U (en) Atlas lateral mass and posterior nodule combined fixing device
CN211985632U (en) Joint bone plate assembly
CN208625832U (en) A kind of assembly type Multifunctional orthopedic inner fixing device
CN111281516A (en) Anatomical external fixation steel plate and fixation system for femoral neck fracture
JP3710121B2 (en) Internal fixation device for fracture of the lower end of the humerus
CN205031355U (en) Apart from boat wedge joint fusion board
CN212118274U (en) Pre-pressing rib bone fracture plate
CN204971533U (en) Coaptation locking screw
CN215937613U (en) Long-arm occipital bone plate reduction internal fixation system used in occipital cervical fusion
CN216124537U (en) Domino connecting device
CN213372403U (en) Double-thread type rear-crossing ligament fixer
CN111281513B (en) Anatomical femoral trochanteric fracture extramedullary fixing special-shaped block and fixing system
CN217744562U (en) Pressurization bone screw
CN213098242U (en) Fixing device for locking steel plate intramedullary nail
CN216823620U (en) Metacarpal orthopedic compression locking plate

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant