CN219700088U - Tibia near-end and far-end involved joint surface fracture fence type nail-placing guider - Google Patents
Tibia near-end and far-end involved joint surface fracture fence type nail-placing guider Download PDFInfo
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- CN219700088U CN219700088U CN202321221659.0U CN202321221659U CN219700088U CN 219700088 U CN219700088 U CN 219700088U CN 202321221659 U CN202321221659 U CN 202321221659U CN 219700088 U CN219700088 U CN 219700088U
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- arm
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- rectangular groove
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- guiding
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- 210000002303 tibia Anatomy 0.000 title claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000002980 postoperative effect Effects 0.000 abstract description 2
- 208000010392 Bone Fractures Diseases 0.000 description 14
- 206010017076 Fracture Diseases 0.000 description 14
- 238000005457 optimization Methods 0.000 description 4
- 210000003414 extremity Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 206010043827 tibia fracture Diseases 0.000 description 1
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Abstract
The utility model relates to a fence type nail-placing guide for fracture of proximal and distal ends of tibia, which comprises a positioning arm and a guide arm detachably connected with the positioning arm, wherein the positioning arm and the guide arm are mutually perpendicular, a first rectangular groove for a positioning needle to pass through is formed in the left side and the right side of the positioning arm, a second rectangular groove for guiding row nails to be placed in is formed in the front side and the rear side of the guide arm, and the plane of the second rectangular groove is positioned above the plane of the first rectangular groove. The positioning pin penetrating through the first rectangular groove plays a role in positioning the positioning arm, the positioning pin is placed into the row nails through the second rectangular groove to guide, after the positioning pin of the first rectangular groove is replaced by the lock nail, the lock nail is crossed with the row nails placed through the second rectangular groove in a fence mode, the lock nail supports the row nails, the situations of postoperative reset loss and joint surface re-collapse are reduced, and compared with the existing clinical direct bare-handed operation, the accuracy is higher, and the operation difficulty is reduced.
Description
Technical Field
The utility model belongs to the technical field of fracture nail placement guides, and particularly relates to a fence type nail placement guide for fracture of a proximal tibia and a distal tibia involved joint surface.
Background
For joint surface subsidence fracture such as tibial plateau fracture (proximal tibia) or pilot fracture (fracture of joint surface involved in distal tibia), the locking plate sometimes cannot provide enough mechanical support, and problems of reduction loss and joint surface subsidence are easy to occur after operation, and in recent years, the locking plate combined with 'gang nail' fixation is applied clinically to increase the supporting force on the joint surface.
The ideal state of the row nails after being put in is that the row nails are mutually intersected with the locking nails of the locking plate, and the locking nails of the locking plate can directly support the row nails, which is equivalent to providing an inner support for the collapsed joint surface, thereby providing better mechanical support. However, in order to achieve the ideal state, accurate positioning is needed when the row nails are placed, in the prior art, the operation is performed by bare hands, the error is large, and therefore, the fence type nail placement guide special for the fracture of the proximal and distal tibia involved in the joint surface needs to be invented.
Disclosure of Invention
The utility model aims to solve the problems, and provides a fence type nail placement guide for fracture of proximal and distal tibia involved in joint surfaces, which aims to solve the problems that the operation error of bare hands is large and the fence type nail placement is difficult to realize in the prior art.
The utility model realizes the above purpose through the following technical scheme:
the utility model provides a tibiae near-end and distal end are involved joint face fracture fence formula and are put nail and use director, includes the locating arm, can dismantle the guide arm of being connected with the locating arm, locating arm and guide arm mutually perpendicular, two sides open about the locating arm have the first rectangular channel that supplies the locating needle to pass, two sides open around the guide arm have the second rectangular channel that guides for the gang nail is put into, the plane that the second rectangular channel is located first rectangular channel is located the plane top, warp the gang nail that the second rectangular channel was put into in the direction and pass the locating needle of first rectangular channel are fence formula and alternately.
As a further optimization scheme of the utility model, two positioning arm screw holes are formed in the front end face of the positioning arm, a plurality of guiding arm screw holes are formed in the front surface and the rear surface of the guiding arm, the guiding arm screw holes are symmetrically arranged in two rows up and down, and the positioning arm screw holes and the guiding arm screw holes are fixedly connected through screws.
As a further optimization scheme of the utility model, the positioning arm and the guide arm are mutually and vertically connected to form an L shape or an inverted T shape.
As a further optimization scheme of the utility model, after the positioning pin penetrating through the first rectangular groove is replaced by the locking pin, the locking pin is crossed with the row pins guided and placed through the second rectangular groove in a fence mode, and the locking pin supports the row pins.
As a further optimization scheme of the utility model, the diameter of the positioning needle is consistent with the height of the first rectangular groove, and the diameter of the locking nail is larger than that of the positioning needle.
The utility model has the beneficial effects that:
1) The positioning pin penetrating through the first rectangular groove plays a role in positioning the positioning arm, the positioning pin is placed into the row nails through the second rectangular groove to guide, after the positioning pin of the first rectangular groove is replaced by the lock nail, the lock nail is crossed with the row nails placed through the second rectangular groove in a fence mode, the lock nail supports the row nails, the situations of postoperative reset loss and joint surface re-collapse are reduced, and compared with the existing clinical direct bare-handed operation, the accuracy is higher, and the operation difficulty is reduced;
2) The connecting position of the guide arm on the positioning arm can be adjusted according to actual use requirements, and the device is suitable for patients with different thicknesses of limbs, is also commonly used for limbs on the left side and the right side, has a simple structure and is easy to operate.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
Fig. 2 is a perspective view of the guide arm and positioning arm of the present utility model in a first connected state.
Fig. 3 is a perspective view of the guide arm and positioning arm of the present utility model in a second connection state.
Fig. 4 is a view of the guide arm and positioning arm of the present utility model in use with a tibial plateau fracture fence staple.
Fig. 5 is a view of the guide and locator arms of the present utility model in use as they would be on the distal tibia and involved in the placement of a fracture fence nail on the articular surface.
In the figure: 1. a positioning arm; 2. a guide arm; 3. a first rectangular groove; 4. a second rectangular groove; 5. positioning arm screw holes; 6. a guide arm screw hole; 7. and (5) a screw.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the utility model only and is not to be construed as limiting the scope of the utility model, as various insubstantial modifications and adaptations of the utility model to those skilled in the art can be made in light of the foregoing disclosure.
As shown in figures 1-5, the guider for fence type nail placement for fracture of proximal and distal tibia involved joint surfaces comprises a positioning arm 1 and a guiding arm 2 detachably connected with the positioning arm 1, wherein the positioning arm 1 and the guiding arm 2 are mutually perpendicular, a first rectangular groove 3 for a positioning needle to pass through is formed in the left side and the right side of the positioning arm 1, a second rectangular groove 4 for guiding the placement of a row nail is formed in the front side and the rear side of the guiding arm 2, the plane of the second rectangular groove 4 is located above the plane of the first rectangular groove 3, and the row nail placed in a guiding way through the second rectangular groove 4 and the positioning needle passing through the first rectangular groove 3 are in fence type intersection.
In this embodiment, two positioning arm screw holes 5 are provided on the front end surface of the positioning arm 1, a plurality of guiding arm screw holes 6 are provided on the front and rear surfaces of the guiding arm 2, the guiding arm screw holes 6 are vertically symmetrically arranged in two rows, and the positioning arm screw holes 5 and the guiding arm screw holes 6 are fixedly connected by screws 7.
Furthermore, the positioning arm 1 and the guide arm 2 are mutually and vertically connected to form an L shape or an inverted T shape, so that the position of the positioning arm 1 connected to the guide arm 2 can be conveniently adjusted according to actual needs, and convenience is brought to use.
Further, after the positioning pin passing through the first rectangular groove 3 is replaced by a locking pin, the locking pin is crossed with the row nails guided and placed through the second rectangular groove 4 in a fence mode, and the locking pin supports the row nails.
In this embodiment, the diameter of the positioning pin is consistent with the height of the first rectangular groove 3, and the diameter of the locking pin is larger than the diameter of the positioning pin.
In this embodiment, the length, height and thickness of the positioning arm 1 are respectively 100mm, 20mm and 20mm, the length, height and thickness of the guiding arm 2 are respectively 200mm, 20mm and 20mm, the bottoms of the guiding arm 2 and the positioning arm 1 are on the same horizontal plane, the tops of the guiding arm 2 and the positioning arm 1 are also on the same horizontal plane, the heights of the positioning needle diameter and the first rectangular groove 3 are both 2.8mm, the diameter of the locking pin is 3.5mm, the height of the second rectangular groove 4 is any one of 2.5mm, 2.8mm and 3.2mm, the row nails with the diameters of 3.5mm, 4.0mm or 4.5mm are correspondingly selected according to the height of the second rectangular groove 4, before the row nails are placed in, the positioning holes are drilled by the second rectangular groove 4 on the guiding arm 2, then the row nails are screwed into the row nails in the drilled row nails, the height of the first rectangular groove 3 is 7mm from the lower edge of the positioning arm 1, and the height of the second rectangular groove 4 is 11 mm.
As shown in fig. 4, the fracture of the tibia plateau is reduced, the inside of the L-shaped locking plate is fixed (2 nail holes are reserved on the cross arm of the locking plate and the locking nails are not screwed in temporarily), by means of the sleeve of the locking plate, the nail holes on the cross arm of the self-locking plate are drilled into two positioning pins, the positioning arm 1 and the guiding arm 2 are connected and fixed, a first rectangular groove 3 on the positioning arm 1 penetrates through the positioning pin (namely, the positioning pin penetrates through the first rectangular groove 3) and is arranged at the proximal end of the tibia, a second rectangular groove 4 on the guiding arm 2 is drilled into the nails from front to back on the horizontal plane according to the required angle and the number of the nails to be used, as shown in fig. 4, the nails are positioned below the collapsed joint surface, the positioning arm 1 and the guiding arm 2 are removed, the nails are screwed in the drilled nails, the positioning pins are replaced with the locking nails, the nails are crossed in a fence shape, and the nails are directly supported by the locking nails;
as shown in fig. 5, the distal tibia fracture is reduced, the inside of the front and outer locking plate is fixed (2 nail holes are reserved on the cross arm of the locking plate and the locking nails are not screwed in temporarily), two positioning needles are drilled in the nail holes on the cross arm of the self-locking plate by means of the sleeve of the locking plate, the positioning arm 1 and the guiding arm 2 are fixedly connected, the first rectangular groove 3 on the positioning arm 1 penetrates through the positioning needles (namely, the positioning needles penetrate through the first rectangular groove 3) and is arranged at the distal tibia, the second rectangular groove 4 on the guiding arm 2 drills the nails from inside to outside according to the required angle and the number of the nails to be used on the horizontal plane, as shown in fig. 5, the positioning arm 1 and the guiding arm 2 are removed, the nails are screwed in the drilled nails, the positioning needles are replaced by the locking nails, the nails are crossed with the locking nails in a fence, and the nails are directly supported by the locking nails.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (5)
1. A guide for fence type nail placement of fracture of proximal and distal tibia involving articular surfaces, characterized in that: the novel riveting device comprises a positioning arm (1), and a guiding arm (2) detachably connected with the positioning arm (1), wherein the positioning arm (1) and the guiding arm (2) are mutually perpendicular, a first rectangular groove (3) for a positioning needle to pass through is formed in the left side and the right side of the positioning arm (1), a second rectangular groove (4) for guiding a row of nails is formed in the front side and the rear side of the guiding arm (2), the plane of the second rectangular groove (4) is located above the plane of the first rectangular groove (3), and row nails which are guided and placed through the second rectangular groove (4) and the positioning needle which passes through the first rectangular groove (3) are in fence-type intersection.
2. A guide for fence type screw placement for proximal and distal tibial involved articular surface fractures according to claim 1, wherein: two positioning arm screw holes (5) have been seted up to terminal surface before positioning arm (1), both sides open around guiding arm (2) have a plurality of guiding arm screw hole (6), guiding arm screw hole (6) up-and-down symmetry sets up into two rows, positioning arm screw hole (5) and guiding arm screw hole (6) are fixed through screw (7) connection.
3. A guide for fence type nail placement for proximal and distal tibial involved articular surface fractures according to claim 2, wherein: the positioning arm (1) and the guiding arm (2) are mutually and vertically connected to form an L shape or an inverted T shape.
4. A guide for fence type screw placement for proximal and distal tibial involved articular surface fractures according to claim 1, wherein: after the positioning pin passing through the first rectangular groove (3) is replaced by a locking pin, the locking pin is crossed with the row pins guided and placed through the second rectangular groove (4) in a fence type, and the locking pin supports the row pins.
5. A tibial proximal and distal access articular surface fracture fence staple guide as defined in claim 4 wherein: the diameter of the positioning needle is consistent with the height of the first rectangular groove (3), and the diameter of the locking pin is larger than the diameter of the positioning needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321221659.0U CN219700088U (en) | 2023-05-17 | 2023-05-17 | Tibia near-end and far-end involved joint surface fracture fence type nail-placing guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321221659.0U CN219700088U (en) | 2023-05-17 | 2023-05-17 | Tibia near-end and far-end involved joint surface fracture fence type nail-placing guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219700088U true CN219700088U (en) | 2023-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321221659.0U Active CN219700088U (en) | 2023-05-17 | 2023-05-17 | Tibia near-end and far-end involved joint surface fracture fence type nail-placing guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219700088U (en) |
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2023
- 2023-05-17 CN CN202321221659.0U patent/CN219700088U/en active Active
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