CN217828035U - Ulna intramedullary nail with positioning hole - Google Patents
Ulna intramedullary nail with positioning hole Download PDFInfo
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- CN217828035U CN217828035U CN202221535888.5U CN202221535888U CN217828035U CN 217828035 U CN217828035 U CN 217828035U CN 202221535888 U CN202221535888 U CN 202221535888U CN 217828035 U CN217828035 U CN 217828035U
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Abstract
The utility model provides a take ulna intramedullary nail of locating hole, first nail body and the second nail body including a body coupling, the diameter of first nail body is greater than the diameter of the second nail body, first nail body is the slope setting with the second nail body, first fixed orifices and second fixed orifices have been seted up on the first nail body, the locating hole has been seted up to the one end that the first nail body was kept away from to the second nail body, the main nail of ulna intramedullary nail is constituteed to the first nail body and the second nail body, when examining the main nail of ulna intramedullary nail, adopt the locating lever through examining utensil and locating hole, and then the distal end radian of calibration main nail, the elasticity of avoiding main nail self produces the influence to the appearance of main nail, improve the matching degree of the anatomy characteristic of main nail structure and ulna, the patient of being convenient for moves about early, be favorable to patient's recovery.
Description
Technical Field
The utility model relates to the technical field of orthopedic medical equipment, in particular to an ulna intramedullary nail with a positioning hole.
Background
The common proximal ulna fracture can be recovered from the injured part through a surgical operation technology, an ulna intramedullary nail is a common bone fracture technology and is also a novel modern fracture fixation technology, an indirect fracture reduction technology is adopted, and the intramedullary implant fixation is used for maintaining fracture alignment, so that the operation exposure and soft tissue stripping are minimized, and the fracture healing rate can be improved.
In the prior art, the main nail of the ulna intramedullary nail is mainly used for ulna backbone fracture and ulna proximal end simple fracture, and because the bending degree of the ulna per se is smaller, the intramedullary nail per se is thinner, the elasticity of the intramedullary nail per se is larger, the main nail of the ulna intramedullary nail is easy to deform, the radian is easy to change, the implantation of the main nail is influenced, but the far end of the main nail of the ulna intramedullary nail is not provided with a positioning hole, and the radian of the far end of the main nail is difficult to calibrate.
SUMMERY OF THE UTILITY MODEL
In order to make up for the above insufficiency, the utility model provides an ulna intramedullary nail with a positioning hole, which aims to solve the problem that the radian of the far end of the main nail of the ulna intramedullary nail is difficult to be calibrated in the prior art.
For solving the technical scheme, the utility model discloses a realize like this:
the ulna intramedullary nail with the positioning hole comprises a first nail body and a second nail body which are connected integrally, wherein the diameter of the first nail body is larger than that of the second nail body, the first nail body and the second nail body are arranged in an inclined mode, a first fixing hole and a second fixing hole are formed in the first nail body, and the positioning hole is formed in one end, far away from the first nail body, of the second nail body.
In an embodiment of the present invention, an inclined included angle between the first nail body and the second nail body is α 1, and an angle of α 1 is 176 °.
In an embodiment of the present invention, the number of the first fixing holes is one, the number of the second fixing holes is two, and the first fixing holes and the second fixing holes are arranged side by side.
In an embodiment of the present invention, there is an inclined included angle between the hole axis of the first fixing hole and the axis of the first nail body, the inclined included angle between the hole axis of the first fixing hole and the axis of the first nail body is α 2, and the angle of α 2 is 30 °.
In an embodiment of the present invention, the hole axis of the second fixing hole is perpendicular to the central axis of the first nail body.
In an embodiment of the present invention, the end of the second nail body is provided with an inclined plane, an inclined included angle between the inclined plane and the second nail body is α 3, and an angle of α 3 is 7 °.
In an embodiment of the present invention, the first nail body and the second nail body are all processed by grooving on the arc surface.
In an embodiment of the present invention, the positioning hole is perpendicular to the central axis of the second nail body.
In an embodiment of the present invention, a straight groove is disposed at an end of the first nail body away from the second nail body.
The utility model has the advantages that:
1. the utility model discloses a main nail of ulna intramedullary nail comprises first nail body and the second nail body, the second nail body is kept away from the one end of first nail body and has been seted up the locating hole, when examining the main nail of ulna intramedullary nail, adopt the locating lever through examining utensil and locating hole, and then the distal end radian of calibration main nail, the elasticity of avoiding main nail self produces the influence to the appearance of main nail, improve the matching degree of the anatomy characteristic of main nail structure and ulna, the patient of being convenient for moves about the upper limbs early, be favorable to patient's recovery.
2. The utility model discloses a first nail body and second nail body are the slope setting, and the slope contained angle between the first nail body and the second nail body is alpha 1, alpha 1's angle is 176, makes the utility model discloses a main nail accords with ulna anatomy characteristic more, is convenient for incite somebody to action the utility model discloses follow ulna olecranon point and implant, implant easy operation, it is little to ulna blood transport influence.
3. The utility model discloses a diameter of the first nail body is greater than the diameter of the second nail body, the first nail body with the grooving processing is all done to the arc surface of the second nail body, reduces the utility model discloses a whole volume reduces irritating to the soft tissue, conveniently implants.
4. The utility model discloses a first fixed orifices with first nail body is the slope setting, first fixed orifices with slope contained angle between the first nail body is alpha 2, alpha 2's angle is 30, and the junction at first fixed orifices place is close ulna and humerus, and horizontal lockpin is squeezed into along first fixed orifices slope, can avoid hindering the humerus to more adapt to the structure of ulna near-end.
5. The main nail of the ulna intramedullary nail designed by the utility model has simple structure, high safety, and is suitable for clinical requirements and large-scale popularization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of an ulnar intramedullary nail with positioning holes according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an ulnar intramedullary nail with positioning holes at another view angle according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 1 according to an embodiment of the present invention.
In the figure: 1-a first nail body; 101-a first fixation hole; 102-a second fixing hole; 103-straight slot; 2-the second nail body.
Detailed Description
The following detailed description of the embodiments of the present invention, provided in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides an ulna intramedullary nail with locating hole, includes the first nail body 1 and the second nail body 2 of integrative connection, and the diameter of the first nail body 1 is greater than the diameter of the second nail body 2, and the first nail body 1 is the slope setting with the second nail body 2, has seted up first fixed orifices 101 and second fixed orifices 102 on the first nail body 1, and locating hole 201 has been seted up to the one end that the first nail body 1 was kept away from to the second nail body 2.
Specifically, as shown in fig. 1 and fig. 3, the main nail of the ulna intramedullary nail is composed of a first nail body 1 and a second nail body 2, one end of the second nail body 2, which is far away from the first nail body 1, is provided with a positioning hole 201, namely, the positioning hole 201 is positioned at the far end of the main nail, when the main nail of the ulna intramedullary nail is checked, the positioning rod is adopted to pass through a checking fixture and the positioning hole 201, so as to calibrate the far end radian of the main nail, the technical problem that the far end radian of the main nail in the prior art is difficult to calibrate is solved, the influence of the elasticity of the main nail on the appearance of the main nail is avoided, the matching degree of the anatomical characteristics of the main nail structure and the ulna is improved, the upper limb of a patient can move in the early days, and the rehabilitation of the patient is facilitated.
In the present embodiment, the included angle between the first nail body 1 and the second nail body 2 is α 1, and the angle of α 1 is 176 °.
Specifically, as shown in fig. 1, the slope contained angle between the first nail body 1 and the second nail body 2 is 176 for the main nail accords with ulna anatomy characteristic more, is convenient for with the utility model discloses follow the implantation of ulna olecranon point, implant easy operation, it is little to ulna blood circulation influence.
In this embodiment, the number of the first fixing holes 101 is one, the number of the second fixing holes 102 is two, and the first fixing holes 101 and the second fixing holes 102 are arranged side by side.
Specifically, as shown in fig. 1, the first fixing hole 101 and the second fixing hole 102 are adapted to a transverse locking nail, the transverse locking nail is insubstantially different from a transverse locking nail in the prior art, the transverse locking nail is matched with the first fixing hole 101 and the second fixing hole 102 to lock the first nail body 1, when the first nail body 1 is interlocked, the first nail body 1 is interlocked through an auxiliary positioning surgical instrument, the transverse locking nail is implanted into the proximal cortex of the ulna and penetrates through the first fixing hole 101 or the second fixing hole 102, and at this time, proximal interlocking of the ulna is completed.
In the embodiment, the hole axis of the first fixing hole 101 and the axis of the first nail body 1 form an inclined included angle, the inclined included angle between the hole axis of the first fixing hole 101 and the axis of the first nail body 1 is α 2, and the angle of α 2 is 30 °.
Specifically, as shown in fig. 2, the first fixing hole 101 is located at the front end of the first nail body 1, in an actual application process, the position of the first fixing hole 101 is close to the joint of the ulna and the humerus, an inclined included angle between the first fixing hole 101 and the first nail body 1 is 30 °, the transverse locking nail is obliquely driven along the first fixing hole 101, injury to the humerus can be avoided, and the structure of the proximal end of the ulna is more suitable.
In this embodiment, two second fixing holes 102 are perpendicular to the central axis of the first nail body 1.
Specifically, as shown in fig. 2, in practical applications, two second fixing holes 102 are perpendicular to the central axis of the first nail body 1 to better conform to the anatomical features of the ulna.
In this embodiment, the end of the second nail body 2 is provided with an inclined surface, an inclined included angle α 3 is formed between the inclined surface and the second nail body 2, and an angle α 3 is 7 °.
Specifically, as shown in fig. 3, the distal end of the main nail is provided with a bevel for reducing the volume of the distal end of the main nail, reducing irritation to soft tissues and facilitating implantation.
In this embodiment, the circular arc surfaces of the first nail body 1 and the second nail body 2 are both subjected to grooving treatment.
Specifically, as shown in fig. 2, the effect of grooving the arc surfaces of the first nail body 1 and the second nail body 2 is the same as the effect of arranging the inclined plane at the tail end of the second nail body 2, and both the effect is used for reducing the volume of the distal end of the main nail, reducing irritation to soft tissues and facilitating implantation.
In this embodiment, the positioning hole 201 is perpendicular to the central axis of the second nail body 2.
Specifically, in the present embodiment, a straight groove 103 is formed at an end of the first nail body 1 away from the second nail body 2.
Specifically, as shown in fig. 1-2, after the proximal ulna interlocking is completed, the auxiliary instrument connected with the main nail is removed, and the tail nail is screwed into the linear groove 103, so that the bone can be prevented from growing into the linear groove 103 at the end of the main nail, and the stability of the proximal ulna interlocking can be further improved.
Furthermore, the utility model discloses the tail nail that adopts does not have substantive difference with the tail nail among the prior art.
Specifically, this take ulna intramedullary nail of locating hole's theory of operation: when using the utility model discloses the time, horizontal locking nail and first fixed orifices 101 and second fixed orifices 102 mutually support, be used for locking first nail body 1, when carrying out the interlocking of first nail body 1, carry out the interlocking to first nail body 1 through assistance-localization real-time surgical instruments, implant the ulna near-end cortex with horizontal locking nail, and run through first fixed orifices 101 or second fixed orifices 102 this moment, ulna near-end interlocking is accomplished, take off the auxiliary instrument of being connected with the main nail, twist a word inslot 103 inside with the tail nail, when examining the main nail of ulna intramedullary nail, adopt the locating lever through examining utensil and locating hole 201, and then the distal end radian of calibration main nail, avoid the elasticity of main nail self to produce the influence to the appearance of main nail, improve the degree of matching of the anatomy characteristic of main nail structure and ulna, the patient of being convenient for moves about in the morning, be favorable to patient's upper limbs recovered.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An ulna intramedullary nail with a positioning hole is characterized in that: the nail comprises a first nail body (1) and a second nail body (2) which are integrally connected, wherein the diameter of the first nail body (1) is larger than that of the second nail body (2), the first nail body (1) and the second nail body (2) are obliquely arranged, a first fixing hole (101) and a second fixing hole (102) are formed in the first nail body (1), and a positioning hole (201) is formed in one end of the first nail body (1) and is far away from the second nail body (2).
2. The ulnar intramedullary nail with locating holes of claim 1, wherein: the inclined included angle between the first nail body (1) and the second nail body (2) is alpha 1, and the angle of the alpha 1 is 176 degrees.
3. The ulnar intramedullary nail with locating holes as claimed in claim 1, wherein: the number of the first fixing holes (101) is one, the number of the second fixing holes (102) is two, and the first fixing holes (101) and the second fixing holes (102) are arranged side by side.
4. The ulnar intramedullary nail with locating holes of claim 3, wherein: the hole axis of first fixed orifices (101) with there is the slope contained angle in the axis of the first nail body (1), the hole axis of first fixed orifices (101) with the slope contained angle between the axis of the first nail body (1) is alpha 2, alpha 2's angle is 30.
5. The ulnar intramedullary nail with locating holes as claimed in claim 3, wherein: the hole axes of the two second fixing holes (102) are perpendicular to the central axis of the first nail body (1).
6. The ulnar intramedullary nail with locating holes of claim 1, wherein: the tail end of the second nail body (2) is provided with an inclined plane, an inclined included angle between the inclined plane and the second nail body (2) is alpha 3, and the angle of the alpha 3 is 7 degrees.
7. The ulnar intramedullary nail with locating holes of claim 1, wherein: the arc surfaces of the first nail body (1) and the second nail body (2) are subjected to grooving treatment.
8. The ulnar intramedullary nail with locating holes of claim 1, wherein: the positioning hole (201) is perpendicular to the central axis of the second nail body (2).
9. The ulnar intramedullary nail with locating holes of claim 1, wherein: a straight groove (103) is formed in the end portion, far away from the second nail body (2), of the first nail body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221535888.5U CN217828035U (en) | 2022-06-17 | 2022-06-17 | Ulna intramedullary nail with positioning hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221535888.5U CN217828035U (en) | 2022-06-17 | 2022-06-17 | Ulna intramedullary nail with positioning hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217828035U true CN217828035U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221535888.5U Active CN217828035U (en) | 2022-06-17 | 2022-06-17 | Ulna intramedullary nail with positioning hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217828035U (en) |
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2022
- 2022-06-17 CN CN202221535888.5U patent/CN217828035U/en active Active
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