CN220046038U - Intraoperative trauma small tibia intramedullary nail - Google Patents
Intraoperative trauma small tibia intramedullary nail Download PDFInfo
- Publication number
- CN220046038U CN220046038U CN202320974365.9U CN202320974365U CN220046038U CN 220046038 U CN220046038 U CN 220046038U CN 202320974365 U CN202320974365 U CN 202320974365U CN 220046038 U CN220046038 U CN 220046038U
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- China
- Prior art keywords
- nail
- main nail
- locking
- main
- tibia
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- 210000002303 tibia Anatomy 0.000 title claims abstract description 35
- 208000014674 injury Diseases 0.000 title claims abstract description 13
- 230000008733 trauma Effects 0.000 title claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 16
- 210000001185 bone marrow Anatomy 0.000 claims description 4
- 208000027418 Wounds and injury Diseases 0.000 claims description 3
- 210000003484 anatomy Anatomy 0.000 claims description 2
- 210000004872 soft tissue Anatomy 0.000 abstract description 5
- 230000036770 blood supply Effects 0.000 abstract description 2
- 208000015181 infectious disease Diseases 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 206010043827 tibia fracture Diseases 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a tibia intramedullary nail for small trauma in operation, which comprises a main nail and a plurality of locking nails, wherein the main nail is arranged as a physiological anatomical curve matched with the inner cavity of a tibia of a human body, the plurality of locking nails are distributed on the far end and the near end of the main nail in parallel, a plurality of inwards concave locking grooves are arranged on the periphery of the near end and the far end of the main nail, the plurality of locking grooves are distributed on the edges of two sides of the main nail in an axial discrete manner, the locking grooves on the two sides are distributed at intervals in a staggered manner, the locking grooves are in a circular arc shape, the middle part of the periphery of each locking nail is matched in the corresponding locking groove, the main nail is arranged as a solid rod body, the near end part of the main nail is arranged as a thread head, and the far end part of the main nail is arranged as a contracted nail tail. The main nail adopts a solid bar, so that the bearing capacity is increased, the outer diameter can be made finer, the infection to soft tissues and tibia is less, the recovery of internal blood supply is quick, and the torsion resistance is better.
Description
Technical Field
The utility model relates to the field of intramedullary nails, in particular to a tibial intramedullary nail with small trauma in operation.
Background
The tibia fracture is usually fixed by adopting a tibia locking intramedullary nail, when the tibia locking intramedullary nail is installed in a tibia intramedullary cavity, a hole close to an intramedullary main nail is formed on the tibia end, and the intramedullary main nail is placed in the tibia, so that the damage to the tibia is larger, and the intramedullary main nail also needs to be fixed with the tibia by penetrating through locking nails in various directions, so that the influence on soft tissues and the tibia is larger.
Disclosure of Invention
The utility model aims to solve the technical problems that: provides a tibial intramedullary nail with small trauma in operation, which solves the problem of great damage to tibia and soft tissues when the main nail is assembled and locked.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a small shin intramedullary nail of art wound, includes main nail and a plurality of locking nail, main nail sets up to the physiological anatomy curve shape with human shin intramedullary canal assorted, the proximal end portion of main nail sets up to the screw thread head, and the distal end tip of main nail sets up to the nail tail of shrink, be provided with a plurality of inwards sunken locking grooves on the periphery of the proximal end and the distal end of main nail, a plurality of locking grooves are along the axial discrete distribution on the both sides edge of main nail, the locking groove is convex, and the periphery middle part cooperation of each locking nail is in corresponding locking groove.
As a preferred embodiment, the main spike is provided as a solid rod.
As a preferred embodiment, one side end of the screw head is provided with a groove, one side of the main nail bent towards the physiological inclination is provided with a bending arc center A, and the groove is arranged on one side away from the bending arc center A.
As a preferred embodiment, the threaded head is sleeved with a nut cover in a threaded manner, a threaded blind hole is formed in one end, close to the main nail, of the nut cover, and a hexagonal surface is formed in the other end of the nut cover.
As a preferred embodiment, a plurality of locking grooves are alternately arranged at intervals on both side edges of the main nail.
As a preferred embodiment, the locking grooves are provided with six in total, wherein two locking grooves are provided on the proximal end of the main pin and four locking grooves are provided on the distal end of the main pin.
As a preferred embodiment, six locking grooves are uniformly distributed on the edges of the two sides of the main nail, which are close to and far away from the bending arc center A, the locking groove at the most proximal end of the main nail is arranged on one side of the bending arc center A, the locking groove at the most distal end of the main nail is arranged on one side far away from the bending arc center A, and six locking nails are distributed in the six locking grooves on the main nail in parallel.
The beneficial effects of the utility model are as follows: the main nail is directly combined with the tool through the thread head, when the tibial bone marrow cavity is implanted, the tibial bone marrow cavity can be directly driven into without expanding marrow, the aperture is small, the joint with the tibia is firmer, the main nail and the tibia can be effectively connected and fixed by the locking nails distributed on the two sides of the main nail, the main nail is in the matching form of the concave locking grooves and the locking nails, the locking nails are uniformly distributed, the risk of fracture of the locking nails is effectively reduced, the main nail adopts a solid bar, the center of the main nail is not perforated, the bearing capacity is increased by 40%, the outer diameter can be finer to 7mm, the infection to soft tissues and the tibia is less, the internal blood supply measurement is fast, and the torsional bending strength is better.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is an exploded view of the overall structure of the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a top view of the mating structure of the present utility model;
FIG. 5 is a front view of FIG. 4;
reference numerals in fig. 1 to 5 illustrate: 1. a main nail; 2. locking the nail; 3. a nut cap; 101. a locking groove; 102. a thread head; 103. nailing the tail; 104. a groove; 301. hexagonal surface; 302. and (5) a threaded blind hole.
Detailed Description
Specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
The intraoperative small-trauma tibia intramedullary nail as shown in fig. 1-5 comprises a main nail 1 and a plurality of locking nails 2, wherein the main nail 1 is arranged in a physiological anatomical curve matched with the inner cavity of the human tibia bone marrow, the proximal end part of the main nail 1 is provided with a thread head 102, the distal end part of the main nail 1 is provided with a contracted nail tail 103, a plurality of inwards concave locking grooves 101 are arranged on the periphery of the proximal end and the distal end of the main nail 1, the plurality of locking grooves 101 are distributed on two side edges of the main nail 1 in a discrete mode along the axial direction, the locking grooves 101 are in a circular arc shape, and the middle part of the periphery of each locking nail 2 is matched in the corresponding locking groove 101.
Specifically, link to each other with the instrument through screw thread head 102, when driving into shank marrow cavity with main nail 1, need not expand the marrow, nail tail 103 is as the guide, the damage to the tibia has been reduced to the maximize, main nail 1 sets up to solid stick body, the overall structure of main nail 1 has sufficient intensity like this, can accomplish finer structure, play more powerful support, the injury to tibia and soft tissue is littleer, the locking groove 101 of invagination is seted up to the edge both sides of main nail 1, reduce the destruction to main nail 1 overall structure, guarantee the holistic intensity of main body 1, locking nail 2 passes locking groove 101 and plays the effect of support and connection to tibia and main nail 1, semi-circular locking groove 101 has reduced the stress to locking nail 2 simultaneously, effectively reduce the cracked risk of locking nail 2.
As shown in fig. 3, a groove 104 is provided at one side end of the screw head 102, a bending arc center a is provided at one side of the main nail 1 bent toward the physiological inclination, and the groove 104 is provided at one side facing away from the bending arc center a. The main nail 1 enters the tibia and is taken out, the tool is matched with the threaded head 102 of the main nail 1, the groove 104 can not only identify the direction of the main nail 1, but also be matched with the tool, and the firmness of connection is enhanced.
Further, a nut cover 3 is sleeved on the thread head 102 in a threaded manner, a threaded blind hole 302 is formed in one end, close to the main nail 1, of the nut cover 3, and a hexagonal surface 301 is formed in the other end of the nut cover 3. After the main nail 1 is driven into the tibia, the nut cover 3 is screwed on, so that the thread head 102 can be protected, and the subsequent taking out is convenient.
Further, a plurality of locking grooves 101 are alternately arranged at intervals on both side edges of the main nail 1. Locking grooves 101 uniformly distributed on two sides of the main nail 1 can uniformly connect the main nail 1 with tibia by the locking nails 2.
As shown in fig. 1-2, the locking grooves 101 are provided in total of six, wherein two locking grooves 101 are provided on the proximal end of the main nail 1 and four locking grooves 101 are provided on the distal end of the main nail 1. The locking nails 2 are matched with the paired locking grooves 101, so that the stress of the main nails 1 is ensured to be uniform.
Still further, six locking grooves 101 are uniformly distributed on the edges of the two sides of the main nail 1, which are close to and away from the bending arc center A, the locking groove 101 at the most proximal end of the main nail 1 is arranged on one side of the bending arc center A, the locking groove 101 at the most distal end of the main nail 1 is arranged on one side of the bending arc center A, and six locking nails 2 are distributed in the six locking grooves 101 on the main nail 1 in parallel. The arrangement in this direction facilitates the fixation of the tibia to the main peg 1.
The working process of the utility model is as follows:
according to the illustrations 1-5, firstly, an introduction hole is formed in the proximal end of the tibia, a threaded head 102 of a main nail 1 is connected with a tool, the tool drives the main nail 1 to be inserted into a tibia intramedullary cavity along the hole at the proximal end of the tibia, then the tibia fracture is prejointed, then a locking nail 2 is penetrated through the tibia by adopting a screwing device and is matched with a locking groove 101 on the main nail 1 in the tibia intramedullary cavity, and two ends of the locking nail 2 are fixed on opposite sides of the tibia to finish locking.
The above embodiments are merely illustrative of the principles and effects of the present utility model, and some of the applied embodiments, and are not intended to limit the utility model; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present utility model.
Claims (7)
1. The utility model provides a small tibia intramedullary nail of art wound, includes main nail (1) and a plurality of locking nail (2), main nail (1) set up to the physiological anatomy curve shape with human tibia bone marrow inner chamber assorted, its characterized in that, the proximal end portion of main nail (1) sets up to screw thread head (102), and the distal end tip of main nail (1) sets up to shrink nail tail (103), be provided with a plurality of locking groove (101) of inwards sunken on the periphery of the proximal end and the distal end of main nail (1), a plurality of locking groove (101) are along the discrete distribution in axial on the both sides edge of main nail (1), locking groove (101) are convex, and the periphery middle part cooperation of each locking nail (2) is in corresponding locking groove (101).
2. The intraoperative trauma small tibial intramedullary nail according to claim 1, characterized in that the main nail (1) is provided as a solid rod.
3. The intraoperative trauma small tibial intramedullary nail according to claim 1, characterized in that one side end of the threaded head (102) is provided with a groove (104), one side of the main nail (1) bent towards the physiological inclination is provided with a bending arc center a, and the groove (104) is arranged on one side facing away from the bending arc center a.
4. The intraoperative trauma small tibia intramedullary nail according to claim 1, wherein a nut cover (3) is sleeved on the thread head (102) in a thread way, one end of the nut cover (3) close to the main nail (1) is provided with a threaded blind hole (302), and the other end of the nut cover (3) is provided with a hexagonal surface (301).
5. The intraoperative trauma small tibial intramedullary nail according to claim 1, characterized in that a plurality of locking grooves (101) are staggered on both side edges of the main nail (1).
6. The intraoperative trauma small tibial intramedullary nail according to claim 5, wherein the locking slots (101) are provided in total of six, wherein two locking slots (101) are provided on the proximal end of the main nail (1) and four locking slots (101) are provided on the distal end of the main nail (1).
7. The intraoperative trauma small tibial intramedullary nail according to claim 6, wherein six locking grooves (101) are uniformly distributed on two side edges of the main nail (1) close to and away from the bending arc center a, the locking groove (101) at the nearest end of the main nail (1) is arranged on one side of the bending arc center a, the locking groove (101) at the farthest end of the main nail (1) is arranged on one side away from the bending arc center a, and six locking nails (2) are distributed in parallel in the six locking grooves (101) on the main nail (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974365.9U CN220046038U (en) | 2023-04-26 | 2023-04-26 | Intraoperative trauma small tibia intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974365.9U CN220046038U (en) | 2023-04-26 | 2023-04-26 | Intraoperative trauma small tibia intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220046038U true CN220046038U (en) | 2023-11-21 |
Family
ID=88784211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320974365.9U Active CN220046038U (en) | 2023-04-26 | 2023-04-26 | Intraoperative trauma small tibia intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220046038U (en) |
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2023
- 2023-04-26 CN CN202320974365.9U patent/CN220046038U/en active Active
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