CN216221629U - Nail placing module for thighbone - Google Patents
Nail placing module for thighbone Download PDFInfo
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- CN216221629U CN216221629U CN202120155516.9U CN202120155516U CN216221629U CN 216221629 U CN216221629 U CN 216221629U CN 202120155516 U CN202120155516 U CN 202120155516U CN 216221629 U CN216221629 U CN 216221629U
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Abstract
The utility model discloses a femoral nail placing module, which comprises: a plate-like body disposed in close proximity to an outer surface of a femur of a patient; the first cylinder is of a cylindrical structure, and one end of the first cylinder is connected with one side, away from the femur, of the plate-shaped main body; the second column body is of a cylindrical structure, and one end of the second column body is connected with one side, away from the femur, of the plate-shaped main body; the third cylinder is of a cylindrical structure, and one end of the third cylinder is connected with one side, away from the femur, of the plate-shaped main body; wherein, platelike main part, first cylinder, second cylinder and third cylinder formula structure as an organic whole. By applying the utility model, the fixation treatment of the femoral fracture of the patient can be rapidly and accurately finished, and the femoral head, the greater trochanter and the femoral neck of the patient can form stable connection after the corresponding bolts are arranged in the corresponding mounting holes; the utility model has simple structure, convenient design and easy 3D printing production.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a femoral nail placing module.
Background
The most common clinical fracture is femoral neck fracture, which usually occurs in the elderly over 50 years old. In addition, the incidence of femoral neck fractures in young patients is on the rise in accidents such as high-altitude falls, severe injuries, car accidents, etc. The fracture of the neck of femur is not easy to fix due to the local shearing force.
The femur mainly comprises a femoral head with the upper end facing inwards and upwards and the tail end expanding in a spherical shape, a femoral neck of a thinner part at the outer lower part of the femoral head, and a greater trochanter rising upwards at the junction of the neck bodies. Usually, the treatment method of taking to femoral neck fracture is mostly to fix femoral neck and greater trochanter through the steel sheet earlier to fix greater trochanter and femoral neck and femoral head through medical fixing bolt, however, current thighbone is often produced comparatively trouble with putting nail instrument, and uses also to have more inconvenient place, greatly reduced medical personnel's work efficiency, also brought not good treatment experience for the patient.
SUMMERY OF THE UTILITY MODEL
In view of the above, in order to solve the above problems, the present invention provides a femoral nail placing module, comprising:
a plate-like body disposed in close proximity to an outer surface of a femur of a patient;
the first cylinder is of a cylindrical structure, and one end of the first cylinder is connected with one side, away from the femur, of the plate-shaped main body;
the second column body is of a cylindrical structure, and one end of the second column body is connected with one side, away from the femur, of the plate-shaped main body;
the third cylinder is of a cylindrical structure, and one end of the third cylinder is connected with one side, away from the femur, of the plate-shaped main body;
wherein the plate-shaped main body, the first cylinder, the second cylinder and the third cylinder are of an integrated structure;
the first column body is provided with a first mounting hole along the axial direction, and the first mounting hole penetrates through the first column body and the plate-shaped main body;
the second column body is provided with a second mounting hole along the axial direction, and the second mounting hole penetrates through the second column body and the plate-shaped main body;
and a third mounting hole is formed in the third column body along the axial direction, and the third mounting hole penetrates through the third column body and the plate-shaped main body.
In another preferred embodiment, the inner side of one end of the first mounting hole, which is far away from the plate-shaped main body, is provided with a thread structure; a threaded structure is arranged on the inner side of one end, away from the plate-shaped main body, of the second mounting hole; and a thread structure is arranged on the inner side of one end, far away from the plate-shaped main body, of the third mounting hole.
In another preferred embodiment, the method further comprises: the first guide cylinder, the second guide cylinder and the third guide cylinder are hollow cylindrical structures with two open ends, one end of the first guide cylinder is in threaded connection with the inside of the first mounting hole, one end of the second guide cylinder is in threaded connection with the inside of the second mounting hole, and the third guide cylinder is in threaded connection with the inside of the third mounting hole.
In another preferred embodiment, an inner diameter of the first mounting hole near one end of the plate-shaped body is larger than an inner diameter of the first mounting hole near one end of the first column, an inner diameter of the second mounting hole near one end of the plate-shaped body is larger than an inner diameter of the second mounting hole near one end of the second column, and an inner diameter of the third mounting hole near one end of the plate-shaped body is larger than an inner diameter of the third mounting hole near one end of the third column.
In another preferred embodiment, the axis of the first cylinder, the axis of the second cylinder, the axis of the third cylinder, the axis of the first guide cylinder, the axis of the second guide cylinder and the axis of the third guide cylinder are all arranged in parallel.
In another preferred embodiment, the plate-shaped body is tightly attached to the outer side of the femur along the vertical direction, and both sides of the lower portion of the plate-shaped body are respectively bent towards the direction close to the femur so that the side of the lower portion of the plate-shaped body close to the femur forms a concave surface which is semi-enclosed on the outer side of the femur.
In another preferred embodiment, the plate-shaped body, the first cylinder, the second cylinder, and the third cylinder are all made of 3D printing material.
In another preferred embodiment, the first guide cylinder, the second guide cylinder and the third guide cylinder are made of metal materials.
In another preferred embodiment, a position where the axis of the first cylinder intersects with the plate-like body forms a first reference point, the position where the axis of the second cylinder intersects with the plate-shaped main body forms a second datum point, the position where the axis of the third cylinder intersects with the plate-shaped main body forms a third datum point, the first datum point, the second datum point and the third datum point are all on the same circle, the circle has a center, the connecting line of the first reference point and the center forms a first reference line, the connecting line of the second reference point and the circle center forms a second reference line, the connecting line of the third reference point and the circle center forms a third reference line, and an included angle of 120 degrees is respectively formed between the first datum line and the second datum line, between the second datum line and the third datum line, and between the third datum line and the first datum line.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following positive effects: by applying the utility model, the fixation treatment of the femoral fracture of the patient can be rapidly and accurately finished, and the femoral head, the greater trochanter and the femoral neck of the patient can form stable connection after the corresponding bolts are arranged in the corresponding mounting holes; the utility model has simple structure, convenient design and easy 3D printing production.
Drawings
FIG. 1 is a schematic view of a femoral nail module according to the present invention;
FIG. 2 is a schematic view of a cylindrical structure of a femoral nail-placing module according to the present invention;
fig. 3 is a schematic diagram of a guide pin fitting of a femoral nail placing module according to the present invention.
In the drawings:
1. a plate-like body; 2. the femur; 11. a first column; 12. a second cylinder; 13. a third column; 111. a first mounting hole; 121. a second mounting hole; 131. a third mounting hole; 3. a first guide cylinder; 4. a second guide cylinder; 5. a third guide cylinder; 6. a first guide pin; 7. a second guide pin; 8. a third guide pin; 101. a first reference point; 102. a second reference point; 103. a third reference point; 104. the center of a circle; 105. a first reference line; 106. a second reference line; 107. and a third reference line.
Detailed Description
The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
As shown in fig. 1 and 2, a femoral nail placement module of a preferred embodiment is shown, comprising: a plate-like body 1, the plate-like body 1 being disposed in close contact with an outer surface of a femur 2 of a patient; the first cylinder 11 is of a cylindrical structure, and one end of the first cylinder 11 is connected with one side, away from the femur 2, of the plate-shaped main body 1; the second cylinder 12 is of a cylindrical structure, and one end of the second cylinder 12 is connected with one side, away from the femur 2, of the plate-shaped main body 1; and the third cylinder 13, the third cylinder 13 is a cylindrical structure, and one end of the third cylinder 13 is connected with one side of the plate-shaped main body 1 away from the femur 2. Further, by the close fitting of the plate-shaped body 1 to the outer side of the greater trochanter of the patient's femur 2 and the guiding of the subsequently installed bolt by the first, second and third cylinders 11, 12, 13, the first, second and third cylinders 11, 12, 13 are each operable to insert a bolt and allow the bolt to pass through the greater trochanter and the neck of the femur 2 and be fixed in the head of the femur 2, thereby providing stable fixation of the femur 2 to the patient.
Further, as a preferred embodiment, the plate-shaped body 1, the first column 11, the second column 12 and the third column 13 are of an integrated structure. Further, in the actual production process, the plate-shaped main body 1, the first cylinder 11, the second cylinder 12 and the third cylinder 13 are integrally manufactured by a 3D printer after being designed with the help of computer software.
Further, as a preferred embodiment, the first column 11 is provided with a first mounting hole 111 along the axial direction, and the first mounting hole 111 is disposed through the first column 11 and the plate-shaped body 1. Further, the subsequent first guide cylinder 3 or the bolt nail is guided and defined in the mounting position by the first mounting hole 111.
Further, as a preferred embodiment, the second cylinder 12 is provided with a second mounting hole 121 along the axial direction, and the second mounting hole 121 is disposed through the second cylinder 12 and the plate-shaped main body 1; further, the subsequent second guide cylinder 4 or bolt nail is guided and defined in the mounting position by the second mounting hole 121.
Further, as a preferred embodiment, the third column 13 is opened with a third mounting hole 131 along the axial direction, and the third mounting hole 131 is disposed through the third column 13 and the plate-shaped main body 1. Further, the subsequent second guide cylinder 4 or bolt nail is guided and defined in the mounting position by the second mounting hole 121.
Further, as a preferred embodiment, the inner side of one end of the first mounting hole 111 far away from the plate-shaped main body 1 is provided with a thread structure; the inner side of one end of the second mounting hole 121 far away from the plate-shaped body 1 is provided with a thread structure; the inner side of the third mounting hole 131 away from one end of the plate-shaped body 1 is provided with a screw structure. Further, the above-mentioned thread structure is formed at the same time as the first, second and third mounting holes 111, 121 and 131 are formed, that is, it is actually represented that threads are formed inside the first mounting hole 111, the second mounting hole 121 and the third mounting hole 131, so as to facilitate the subsequent mounting of the first, second and third guide cylinders 3, 4 and 5.
Further, as a preferred embodiment, the method further comprises: first guide cylinder 3, second guide cylinder 4 and third guide cylinder 5, first guide cylinder 3, second guide cylinder 4 and third guide cylinder 5 are cavity and both ends open-ended cylindric structure, and the one end threaded connection of first guide cylinder 3 is in first mounting hole 111, the one end threaded connection of second guide cylinder 4 is in second mounting hole 121, and third guide cylinder 5 threaded connection is in third mounting hole 131. Further, the outer edge of one end of the first guide cylinder 3 is provided with a thread matched with the thread structure, the outer edge of one end of the second guide cylinder 4 is provided with a thread matched with the thread structure, and the outer edge of one end of the third guide cylinder 5 is provided with a thread matched with the thread structure, so that the medical staff can install the first guide cylinder 3, the second guide cylinder 4 and the third guide cylinder 5 in the first cylinder 11, the second cylinder 12 and the third cylinder 13 respectively through a screwing operation mode; the first guide cylinder 3, the second guide cylinder 4 and the third guide cylinder 5 are preferably made of metal materials, so that the corresponding guide cylinders have higher bending resistance and abrasion resistance; when the corresponding guide pin is drilled at a high speed, the first guide cylinder 3, the second guide cylinder 4 and the third guide cylinder 5 are not easy to break and wear by external force.
In another preferred embodiment, the inner diameter of the end of the first mounting hole 111 near the plate-shaped body 1 is larger than the inner diameter of the end of the first mounting hole 111 near the first cylinder 11, the inner diameter of the end of the second mounting hole 121 near the plate-shaped body 1 is larger than the inner diameter of the end of the second mounting hole 121 near the second cylinder 12, and the inner diameter of the end of the third mounting hole 131 near the plate-shaped body 1 is larger than the inner diameter of the end of the third mounting hole 131 near the third cylinder 13. Further, specifically, the first column 11, the second column 12, the third column 13 and the plate-shaped body 1 are integrated together, the first mounting hole 111, the second mounting hole 121, and the third mounting hole 131 are correspondingly formed at corresponding positions of the corresponding columns and the plate-shaped body 1, respectively, the hole sections of the first mounting hole 111, the second mounting hole 121, and the third mounting hole 131 at the plate-shaped body 1 are proximal ends, respectively, the hole sections of the first mounting hole 111, the second mounting hole 121, and the third mounting hole 131 at the corresponding columns are distal ends, in other words, the proximal ends are located at a side of the plate-shaped body 1 close to the femur, and the distal ends are located in the first column 11, the second column 12, or the third column 13; the diameter of the proximal end is larger than that of the distal end; preferably, the hole section is a channel with a circular cross section, so as to ensure that the guide pin or other structure can not be deformed and abraded due to excessive friction caused by slight deflection and the plate-shaped main body when entering the side of the plate-shaped main body 1 close to the femur.
Further, as a preferred embodiment, as shown in fig. 3, when the femoral nail placing module is used, the femoral nail placing module further comprises a first guide pin 6, a second guide pin 7 and a third guide pin 8 which are used in cooperation with the guide cylinder, wherein the first guide pin 6 is insertably mounted in the first guide cylinder 3, the second guide pin 7 is insertably mounted in the second guide cylinder 4, and the third guide pin 8 is insertably mounted in the third guide cylinder 5. Further, in the actual using process, the medical staff should first preset the plate-shaped main body 1, the first cylinder 11, the second cylinder 12, and the third cylinder 13 according to the condition of the femur 2 of the patient, then attach the plate-shaped main body 1 to the surface of the femur 2 of the patient, then fit and install the first guide cylinder 3, the second guide cylinder 4, and the third guide cylinder 5 made of metal material to the plate-shaped main body 1, and then nail the first guide pin 6, the second guide pin 7, and the third guide pin 8 to the plate-shaped main body 1, the first guide cylinder 4, and the third guide cylinder 5 respectively, thereby completing the preliminary positioning, during the inserting process of the first guide pin 6, the second guide pin 7, and the third guide pin 8 into the femur, the guide pins themselves do not contact with the plate-shaped main body 1, the first cylinder 11, the second cylinder 12, and the third cylinder 13, during the positioning process, the first guide pin 6, the second guide pin 12, and the third cylinder 13 in the femur 2 can be aligned by the CT photographing device, etc, Judging whether the positions of the second guide pin 7 and the third guide pin 8 are correct or not; confirm the location accurate after, screw off first guide cylinder 3 earlier, second guide cylinder 4 and third guide cylinder 5, take off platelike main part 1 again, only remain the first guide pin 6 of location usefulness this moment, second guide pin 7 and third guide pin 8 are connected with the thighbone, then screw in hollow nail along first guide pin 6, second guide pin 7 and third guide pin 8, specifically speaking, the external diameter of guide pin should match with the internal diameter of hollow nail, hollow nail cover is established at first guide pin 6, the thighbone is squeezed into in the outside of second guide pin 7 and third guide pin 8, withdraw from first guide pin 6 at last, second guide pin 7 and third guide pin 8, only remain the fixed hollow nail of screw in thighbone, accomplish the fixed of whole thighbone.
Further, as a preferred embodiment, the first pin 6, the second pin 7, and the third pin 8 can be made of developing materials, or a housing made of developing materials is formed on the surface of the first pin 6, the second pin 7, and the third pin 8, so as to facilitate the medical imaging device to observe the positions of the first pin 6, the second pin 7, and the third pin 8.
Further, as a preferred embodiment, the axis of the first cylinder 11, the axis of the second cylinder 12, the axis of the third cylinder 13, the axis of the first guide cylinder 3, the axis of the second guide cylinder 4, the axis of the third guide cylinder 5, the axis of the first guide pin 6, the axis of the second guide pin 7 and the axis of the third guide pin 8 are all arranged in parallel.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, the plate-like body 1 is tightly attached to the outer side of the femur 2 along the vertical direction, and both sides of the lower portion of the plate-like body 1 are respectively bent toward the direction close to the femur 2 and make one side of the lower portion of the plate-like body 1 close to the femur 2 form a concave surface, and the concave surface is half-surrounded on the outer side of the femur 2. Further, the plate-shaped main body 1 is made to be attached to the outer side surface of the greater trochanter of the femur 2 as much as possible, so that the plate-shaped main body 1 is prevented from accidentally slipping off during operation of medical staff.
In a further embodiment of the present invention, the plate-shaped body 1, the first cylinder 11, the second cylinder 12, and the third cylinder 13 are all made of 3D printing material. Further, the selected 3D printing material should have a certain hardness after the femur 2 nail placing module is manufactured, and preferably, a PLA plastic printing material may be used.
In a further embodiment of the present invention, the first guide cylinder 3, the second guide cylinder 4 and the third guide cylinder 5 are made of metal material.
In a further embodiment of the present invention, a position where the axis of the first cylinder 11 intersects the plate-shaped body 1 forms a first reference point 101, a position where the axis of the second cylinder 12 intersects the plate-shaped body 1 forms a second reference point 102, a position where the axis of the third cylinder 13 intersects the plate-shaped body 1 forms a third reference point 103, the first reference point 101, the second reference point 102 and the third reference point 103 are all located on the same circle, the circle has a center 104, a line connecting the first reference point 101 and the center 104 forms a first reference line 105, a line connecting the second reference point 102 and the center 104 forms a second reference line 106, a line connecting the third reference point 103 and the center 104 forms a third reference line 107, an included angle of 120 degrees is formed between the first reference line 105 and the second reference line 106, between the second reference line 106 and the third reference line 107, and between the third reference line 107 and the first reference line 105. Further, the three bolts are inserted into the femur 2 along the first reference point 101, the second reference point 102, and the third reference point 103 to form a stable support without causing excessive damage to the femur 2.
In a further embodiment of the present invention, the first column 11 and the second column 12 are at the same level, and the third column 13 is disposed below between the first column 11 and the second column 12.
In a further embodiment of the utility model, the upper edge of the plate-like body 1 is arranged in a centrally protruding arc. Furthermore, the treatment experience of the patient is improved, and the sharp protrusion on the outer edge of the plate-shaped main body is avoided, so that the pain of the tissue nerve of the patient is prevented.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.
Claims (9)
1. A femoral nail placement module, comprising:
a plate-like body disposed in close proximity to an outer surface of a femur of a patient;
the first cylinder is of a cylindrical structure, and one end of the first cylinder is connected with one side, away from the femur, of the plate-shaped main body;
the second column body is of a cylindrical structure, and one end of the second column body is connected with one side, away from the femur, of the plate-shaped main body;
the third cylinder is of a cylindrical structure, and one end of the third cylinder is connected with one side, away from the femur, of the plate-shaped main body;
wherein the plate-shaped main body, the first cylinder, the second cylinder and the third cylinder are of an integrated structure;
the first column body is provided with a first mounting hole along the axial direction, and the first mounting hole penetrates through the first column body and the plate-shaped main body;
the second column body is provided with a second mounting hole along the axial direction, and the second mounting hole penetrates through the second column body and the plate-shaped main body;
and a third mounting hole is formed in the third column body along the axial direction, and the third mounting hole penetrates through the third column body and the plate-shaped main body.
2. The femoral nail placement module according to claim 1, wherein the inner side of the end of the first mounting hole away from the plate-shaped body is provided with a thread structure; a threaded structure is arranged on the inner side of one end, away from the plate-shaped main body, of the second mounting hole; and a thread structure is arranged on the inner side of one end, far away from the plate-shaped main body, of the third mounting hole.
3. The femoral nail placement module of claim 2, further comprising: the first guide cylinder, the second guide cylinder and the third guide cylinder are hollow cylindrical structures with two open ends, one end of the first guide cylinder is in threaded connection with the inside of the first mounting hole, one end of the second guide cylinder is in threaded connection with the inside of the second mounting hole, and the third guide cylinder is in threaded connection with the inside of the third mounting hole.
4. The femoral nail placement module of claim 1, wherein the first mounting hole has an inner diameter proximate to an end of the plate-like body that is greater than an inner diameter of the first mounting hole proximate to an end of the first post, the second mounting hole has an inner diameter proximate to an end of the plate-like body that is greater than an inner diameter of the second mounting hole proximate to an end of the second post, and the third mounting hole has an inner diameter proximate to an end of the plate-like body that is greater than an inner diameter of the third mounting hole proximate to an end of the third post.
5. The femoral nail placement module of claim 3, wherein the axis of the first cylinder, the axis of the second cylinder, the axis of the third cylinder, the axis of the first guide cylinder, the axis of the second guide cylinder, and the axis of the third guide cylinder are all disposed in parallel.
6. The femoral nail placement module according to claim 1, wherein the plate-shaped body is closely attached to the outer side of the femur in a vertical direction, and both sides of the lower portion of the plate-shaped body are respectively bent toward the direction close to the femur so that the side of the lower portion of the plate-shaped body close to the femur forms a concave surface, and the concave surface is semi-enclosed on the outer side of the femur.
7. The femoral nail placement module of claim 1, wherein the plate-like body, the first cylinder, the second cylinder, and the third cylinder are all made of 3D printed material.
8. The femoral nail placement module of claim 3, wherein the first guide cylinder, the second guide cylinder and the third guide cylinder are all made of a metal material.
9. The femoral nail placement module of claim 1, wherein the location at which the axis of the first post intersects the plate-like body forms a first reference point, the location at which the axis of the second post intersects the plate-like body forms a second reference point, the location at which the axis of the third post intersects the plate-like body forms a third reference point, the first, second and third reference points all being on a common circle having a center, the line connecting the first reference point to the center forming a first reference line, the line connecting the second reference point to the center forming a second reference line, the line connecting the third reference point to the center forming a third reference line, the line between the first and second reference lines, the line between the second and third reference lines, the line between the first and second reference lines, and the line between the second and third reference lines, An included angle of 120 degrees is formed between the third datum line and the first datum line respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120155516.9U CN216221629U (en) | 2021-01-20 | 2021-01-20 | Nail placing module for thighbone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120155516.9U CN216221629U (en) | 2021-01-20 | 2021-01-20 | Nail placing module for thighbone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216221629U true CN216221629U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120155516.9U Active CN216221629U (en) | 2021-01-20 | 2021-01-20 | Nail placing module for thighbone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216221629U (en) |
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2021
- 2021-01-20 CN CN202120155516.9U patent/CN216221629U/en active Active
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