CN220876855U - Marrow cavity file with reinforced handle connection - Google Patents
Marrow cavity file with reinforced handle connection Download PDFInfo
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- CN220876855U CN220876855U CN202322128610.7U CN202322128610U CN220876855U CN 220876855 U CN220876855 U CN 220876855U CN 202322128610 U CN202322128610 U CN 202322128610U CN 220876855 U CN220876855 U CN 220876855U
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- intramedullary
- file
- intramedullary cavity
- groove
- cavity file
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- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 5
- 210000000988 bone and bone Anatomy 0.000 description 17
- 239000012634 fragment Substances 0.000 description 9
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a marrow cavity file with reinforced handle connection, which comprises: the external surface of the intramedullary cavity file body is uniformly provided with annular cutting edges which fully cover the side surface of the intramedullary cavity file body; the chip breaker is arranged at one side of the intramedullary cavity file body and penetrates through the annular cutting edge; the conical clamping groove is embedded and arranged at one end of the intramedullary cavity file body, and a threaded hole is formed in the conical clamping groove; the color ring groove is arranged at one side of the intramedullary cavity file body, the color ring groove is arranged at one end of the intramedullary cavity file body close to the conical clamping groove, and the color ring groove is embedded with a color ring; the conical groove is adopted for limiting and the threaded hole is used for fixing, radial displacement and axial displacement of the intramedullary cavity file are limited respectively, even if the intramedullary cavity file has size deviation or abrasion, the close connection between the intramedullary cavity file and the handle can be guaranteed through the groove surface with an inclined angle, the operation stability is improved, the color ring is increased on the other hand, the depth of driving of the file body of a medical staff is visually reminded, and the operation precision is improved.
Description
Technical Field
The utility model belongs to the field of medical instruments, and particularly relates to a intramedullary canal file for reinforcing handle connection.
Background
The marrow cavity file is a medical tool commonly used in orthopedic surgery, and mainly used for removing marrow in the marrow cavity during surgery, or filing bones and smoothing broken ends of bones to achieve the medical purpose. The sharpness, stability and accuracy of the intramedullary canal file directly influence the success rate of the operation.
The prior intramedullary file has the problems that the prior intramedullary file is required to be mounted on a handle, and the connection of the intramedullary file has a movable clearance sometimes, which is a disadvantageous factor in replacement operation, and in addition, when a medical staff uses the intramedullary file, most of file bodies are in human bodies, and the medical staff often can touch nearby tissues or muscles due to misestimation of the lengths of the file bodies, thereby influencing the operation effect. Accordingly, the present application addresses the above problems by providing innovations and improvements in intramedullary files.
The prior intramedullary canal file mainly has the following problems:
1. Most of the prior marrow cavity files have the problem of easy loosening, because the marrow cavity files need to be fixed with a handle, partial marrow cavity files have dimensional deviation with a beating and pulling device, and when the bone is repeatedly polished, the marrow cavity files and the beating and pulling device rub with each other, so that the marrow cavity files are worn, the connection of the marrow cavity files is not tight, and the phenomenon of activity occurs.
2. Most of the current intramedullary files cannot determine the length of the intramedullary file in a human body, and because the deep degree of the intramedullary file cannot be visually observed, medical staff often touch nearby tissues or muscles due to misestimation of the length of the file body, and the operation effect is affected.
Disclosure of Invention
The utility model aims to: in order to overcome the defects, the utility model aims to provide the marrow cavity file for reinforcing the handle connection, which adopts the conical groove limit and the threaded hole fixing to respectively limit the radial displacement and the axial displacement of the marrow cavity file, can ensure the tight connection of the marrow cavity file and the handle through the groove surface with the dip angle even if the marrow cavity file has size deviation or abrasion, improves the operation stability, increases the color ring on the other hand, reminds medical staff of the file body driving depth through visualization, and improves the operation precision.
The technical scheme is as follows: in order to achieve the above object, the present utility model provides a intramedullary canal file for reinforcing a handle connection, comprising:
The external surface of the intramedullary cavity file body is uniformly provided with annular cutting edges which fully cover the side surface of the intramedullary cavity file body;
The chip breaker is arranged at one side of the intramedullary cavity file body and penetrates through the annular cutting edge;
the conical clamping groove is embedded and arranged at one end of the intramedullary cavity file body, and a threaded hole is formed in the conical clamping groove;
The color ring groove is arranged on one side of the intramedullary cavity file body, the color ring groove is arranged at one end of the intramedullary cavity file body close to the conical clamping groove, and the color ring groove is embedded with a color ring.
According to the setting of the intramedullary cavity file, the conical groove is used for limiting and the threaded hole is used for fixing, so that radial and axial displacement of the intramedullary cavity file is respectively limited, even if the intramedullary cavity file has size deviation or abrasion, the intramedullary cavity file can be tightly connected with the handle through the groove surface with an inclined angle, and the operation stability is improved; the working area of the intramedullary file is increased by extending the annular cutting edge to the whole intramedullary file body, so that the intramedullary file is more attached to bones; the chip breaker is communicated with the adjacent chip breakers, so that bone fragments can be transferred through the chip breakers, the problem that the bone fragments are accumulated in a single chip breaker to be remained in a patient or the marrow cavity file is blocked is avoided, and the success rate of the operation is ensured; through arranging the color ring groove at the maximum use position of the file body, medical staff can conveniently know the depth of the file body in the marrow cavity, the possibility of collision of the marrow cavity file with other tissues nearby is reduced, secondary injury of a patient is avoided, and the operation accuracy is improved.
The utility model discloses a intramedullary canal file, wherein an anti-puncture end head is arranged at one end of a intramedullary canal file body far away from a conical clamping groove, and the anti-puncture end head is subjected to edge rounding treatment.
According to the setting of the edge rounding treatment, the surface curve of the end head of the intramedullary cavity file is softened through the edge rounding treatment, so that the direction of guiding force is guided when the end head of the intramedullary cavity file reciprocates, and secondary injury caused by collision with bones or surrounding tissues is avoided.
The annular cutting edge comprises a rake face and a peripheral edge relief angle arranged on one side of the rake face, wherein the rake faces are parallel to each other, and the peripheral edge relief angle is 65 degrees.
According to the setting of the front cutter surface, the front cutter surface which is always arranged in parallel is matched with the curved surface of the intramedullary cavity file body, so that bone sections with different inclinations can be obtained by grinding at different positions of the intramedullary cavity file body on the premise of not changing the output direction, the expansion of a wound or the change of the wound direction are avoided, and the operation difficulty is reduced; the peripheral edge relief angle with a large angle is used for supporting the front cutter surface, so that the possibility of cutter breakage of the front cutter surface is reduced, and the sharpness of the annular cutting edge is improved.
A chip flute is arranged between the annular cutting edges, and the bottom surface of the chip flute is an arc with the diameter of R0.8mm.
According to the setting of the chip flute, the solvent in the chip flute is enlarged through the circular arc structure on the premise of not influencing the strength of the intramedullary cavity file, and the solvent is matched with the peripheral edge relief angle, so that the chip containing capacity is enlarged, bone chips can be brought out of the intramedullary cavity file, fall outside a human body, the intramedullary cavity is conveniently cleaned, the bone chips are prevented from being accumulated in the intramedullary cavity to block the intramedullary cavity file, and the intramedullary cavity file is more convenient to operate.
The chip breaker groove is communicated with the adjacent annular cutting edges, and is arranged on one side of the intramedullary cavity file body along the spiral line.
According to the arrangement of the chip breaker, the chip breaker is arranged in a spiral structure, so that bone fragments are transferred along the chip breaker, the bone fragments are not blocked by transferring through a spiral line, the bone fragments are not accumulated, the bone fragments are difficult to transfer to two sides, and the bone fragments are prevented from loosening due to too fast transfer and diffusion.
The top of the conical clamping groove is subjected to chamfering treatment, and a plurality of threaded holes are formed in two ends of the conical clamping groove.
The side inclination angle of the conical clamping groove is 11.2 degrees.
The threaded hole comprises a positive rotation type and a negative rotation type.
According to the utility model, the tapered clamping groove is arranged, the inclined groove surface of the tapered clamping groove is matched with the handle, so that even if size deviation or abrasion occurs, the tapered clamping groove and the handle can be closely contacted without slight displacement, meanwhile, a plurality of screws are adopted for fixation, the intramedullary file has no rotation trend through a multi-point positioning structure, and the intramedullary file is self-locked through threaded holes with different rotation directions, so that the intramedullary file is prevented from falling off.
The color ring grooves are symmetrically arranged.
The color ring grooves are arranged, and the color ring grooves encircle the intramedullary cavity file, so that a medical staff can directly observe the color ring grooves no matter how the intramedullary cavity file is held.
The surface of the intramedullary cavity file body is coated with a titanium nitride coating.
The titanium nitride coating is arranged, so that the surface hardness of the intramedullary canal file is improved in a coating mode, and the intramedullary canal file is not easy to wear.
The technical scheme can be seen that the utility model has the following beneficial effects:
1. According to the intramedullary cavity file connected with the reinforcing handle, the conical groove is used for limiting and the threaded hole is used for fixing, so that radial and axial displacement of the intramedullary cavity file is respectively limited, even if the intramedullary cavity file has size deviation or abrasion, the tight connection between the intramedullary cavity file and the handle can be ensured through the groove surface with an inclined angle, and the operation stability is improved.
2. According to the intramedullary cavity file connected with the reinforcing handle, the adjacent chip grooves are communicated through the chip grooves, so that bone fragments can be transferred through the chip grooves, the problem that the bone fragments are accumulated in a single chip groove to remain in a patient or the intramedullary cavity file is blocked is avoided, and the success rate of an operation is ensured.
3. According to the intramedullary cavity file with the reinforced handle connection, through arranging the color ring groove at the maximum use position of the file body, medical staff can conveniently know the depth of the file body into the intramedullary cavity, the possibility that the intramedullary cavity file collides with other tissues nearby is reduced, secondary injury of a patient is avoided, and the operation accuracy is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged schematic view of the annular cutting edge of the present utility model;
FIG. 3 is a schematic cross-sectional side view of a tapered slot of the present utility model;
In the figure: the intramedullary cavity file comprises a intramedullary cavity file body (1), an anti-stab end (11), an annular cutting edge (2), a rake face (21), a peripheral edge relief angle (22), a chip flute (23), a chip breaker (3), a conical clamping groove (4) and a color ring groove (5).
Detailed Description
The utility model is further elucidated below in connection with the drawings and the specific embodiments.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
Example 1
A reinforced handle attached intramedullary file as shown in fig. 1-3, comprising:
The intramedullary cavity file comprises a intramedullary cavity file body 1, wherein annular cutting edges 2 are uniformly arranged on the outer surface of the intramedullary cavity file body, and the annular cutting edges 2 fully cover the side surface of the intramedullary cavity file body 1;
a chip breaker groove 3, which is arranged at one side of the intramedullary cavity file body 1, wherein the chip breaker groove 3 penetrates through the annular cutting edge 2;
the conical clamping groove 4 is embedded and arranged at one end of the intramedullary cavity file body 1, and a threaded hole is formed in the conical clamping groove 4;
the color ring groove 5 is arranged on one side of the intramedullary cavity file body 1, the color ring groove 5 is arranged at one end of the intramedullary cavity file body 1 close to the conical clamping groove 4, and the color ring groove 5 is embedded with a color ring.
In this embodiment, an anti-piercing tip 11 is disposed at one end of the intramedullary canal file body 1 far away from the conical clamping groove 4, and the anti-piercing tip 11 is subjected to edge rounding.
The annular cutting edge 2 in the present embodiment includes a rake surface 21 and a peripheral edge relief 22 provided on one side of the rake surface 21, the rake surfaces 21 being parallel to each other, the peripheral edge relief 22 being 65 °.
A chip flute 23 is arranged between the annular cutting edges 2 in the embodiment, and the bottom surface of the chip flute 23 is an arc of R0.8mm.
The chip breaker groove 3 in the embodiment is communicated with the adjacent annular cutting edge 2, and the chip breaker groove 3 is arranged on one side of the intramedullary cavity file body 1 along a spiral line.
In this embodiment, the top of the tapered clamping groove 4 is chamfered, and a plurality of threaded holes are formed in two ends of the tapered clamping groove 4.
The number of the color ring grooves 5 in the present embodiment is plural, and the color ring grooves 5 are symmetrically arranged.
The surface of the intramedullary file body 1 described in this embodiment is coated with a titanium nitride coating.
Example 2
A reinforced handle attached intramedullary file as shown in fig. 1, comprising:
The intramedullary cavity file comprises a intramedullary cavity file body 1, wherein annular cutting edges 2 are uniformly arranged on the outer surface of the intramedullary cavity file body, and the annular cutting edges 2 fully cover the side surface of the intramedullary cavity file body 1;
a chip breaker groove 3, which is arranged at one side of the intramedullary cavity file body 1, wherein the chip breaker groove 3 penetrates through the annular cutting edge 2;
the conical clamping groove 4 is embedded and arranged at one end of the intramedullary cavity file body 1, and a threaded hole is formed in the conical clamping groove 4;
the color ring groove 5 is arranged on one side of the intramedullary cavity file body 1, the color ring groove 5 is arranged at one end of the intramedullary cavity file body 1 close to the conical clamping groove 4, and the color ring groove 5 is embedded with a color ring.
In this embodiment, an anti-piercing tip 11 is disposed at one end of the intramedullary canal file body 1 far away from the conical clamping groove 4, and the anti-piercing tip 11 is subjected to edge rounding.
The annular cutting edge 2 in the present embodiment includes a rake surface 21 and a peripheral edge relief 22 provided on one side of the rake surface 21, the rake surfaces 21 being parallel to each other, the peripheral edge relief 22 being 65 °.
A chip flute 23 is arranged between the annular cutting edges 2 in the embodiment, and the bottom surface of the chip flute 23 is an arc of R0.8mm.
The chip breaker groove 3 in the embodiment is communicated with the adjacent annular cutting edge 2, and the chip breaker groove 3 is arranged on one side of the intramedullary cavity file body 1 along a spiral line.
Example 3
A reinforced handle attached intramedullary file as shown in fig. 1 and 3, comprising:
The intramedullary cavity file comprises a intramedullary cavity file body 1, wherein annular cutting edges 2 are uniformly arranged on the outer surface of the intramedullary cavity file body, and the annular cutting edges 2 fully cover the side surface of the intramedullary cavity file body 1;
a chip breaker groove 3, which is arranged at one side of the intramedullary cavity file body 1, wherein the chip breaker groove 3 penetrates through the annular cutting edge 2;
the conical clamping groove 4 is embedded and arranged at one end of the intramedullary cavity file body 1, and a threaded hole is formed in the conical clamping groove 4;
the color ring groove 5 is arranged on one side of the intramedullary cavity file body 1, the color ring groove 5 is arranged at one end of the intramedullary cavity file body 1 close to the conical clamping groove 4, and the color ring groove 5 is embedded with a color ring.
In this embodiment, the top of the tapered clamping groove 4 is chamfered, and a plurality of threaded holes are formed in two ends of the tapered clamping groove 4.
The side inclination angle of the conical clamping groove is 11.2 degrees.
The threaded hole comprises a positive rotation type and a negative rotation type.
The surface of the intramedullary file body 1 described in this embodiment is coated with a titanium nitride coating.
The foregoing is merely a preferred embodiment of the utility model, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the utility model, which modifications would also be considered to be within the scope of the utility model.
Claims (8)
1. A reinforced handle connected intramedullary canal file, characterized in that: comprising the following steps:
The intramedullary cavity file comprises a intramedullary cavity file body (1), wherein annular cutting edges (2) are uniformly arranged on the outer surface of the intramedullary cavity file body, and the annular cutting edges (2) fully cover the side surface of the intramedullary cavity file body (1);
The chip breaker groove (3) is arranged at one side of the intramedullary cavity file body (1), and the chip breaker groove (3) penetrates through the annular cutting edge (2);
The conical clamping groove (4) is embedded and arranged at one end of the intramedullary cavity file body (1), and a threaded hole is formed in the conical clamping groove (4);
The color ring groove (5) is arranged on one side of the intramedullary cavity file body (1), the color ring groove (5) is arranged at one end of the intramedullary cavity file body (1) close to the conical clamping groove (4), and the color ring groove (5) is embedded with a color ring.
2. A reinforced handle attached intramedullary file as defined in claim 1, wherein: one end of the marrow cavity file body (1) far away from the conical clamping groove (4) is provided with an anti-puncturing end head (11), and the anti-puncturing end head (11) is subjected to edge rounding treatment.
3. A reinforced handle attached intramedullary file as defined in claim 1, wherein: the annular cutting edge (2) comprises a rake face (21) and a peripheral edge relief angle (22) arranged on one side of the rake face (21), the rake faces (21) are parallel to each other, and the peripheral edge relief angle (22) is 65 degrees.
4. A reinforced handle attached intramedullary file as defined in claim 1, wherein: a chip flute (23) is arranged between the annular cutting edges (2), and the bottom surface of the chip flute (23) is an arc of R0.8mm.
5. A reinforced handle attached intramedullary file as defined in claim 1, wherein: the chip breaker groove (3) is communicated with the adjacent annular cutting edge (2), and the chip breaker groove (3) is arranged on one side of the intramedullary cavity file body (1) along the spiral line.
6. A reinforced handle attached intramedullary file as defined in claim 1, wherein: chamfering is carried out at the top of the conical clamping groove (4), and a plurality of threaded holes are formed in two ends of the conical clamping groove (4).
7. A reinforced handle attached intramedullary file as defined in claim 1, wherein: the number of the color ring grooves (5) is multiple, and the color ring grooves (5) are symmetrically arranged.
8. A reinforced handle attached intramedullary file as defined in claim 1, wherein: the surface of the intramedullary cavity file body (1) is coated with a titanium nitride coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322128610.7U CN220876855U (en) | 2023-08-09 | 2023-08-09 | Marrow cavity file with reinforced handle connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322128610.7U CN220876855U (en) | 2023-08-09 | 2023-08-09 | Marrow cavity file with reinforced handle connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220876855U true CN220876855U (en) | 2024-05-03 |
Family
ID=90872175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322128610.7U Active CN220876855U (en) | 2023-08-09 | 2023-08-09 | Marrow cavity file with reinforced handle connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220876855U (en) |
-
2023
- 2023-08-09 CN CN202322128610.7U patent/CN220876855U/en active Active
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