CN217118516U - Medullary cavity file holder and femoral medullary cavity file - Google Patents
Medullary cavity file holder and femoral medullary cavity file Download PDFInfo
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- CN217118516U CN217118516U CN202122295160.1U CN202122295160U CN217118516U CN 217118516 U CN217118516 U CN 217118516U CN 202122295160 U CN202122295160 U CN 202122295160U CN 217118516 U CN217118516 U CN 217118516U
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Abstract
The utility model discloses a pulp cavity file holder and a femoral pulp cavity file, which belong to the technical field of medical instruments, the pulp cavity file holder comprises a holder main body, the holder main body is Z-shaped in plan view and comprises a first straight rod section positioned in the middle and the rear part of the holder main body, an inclined rod section positioned in the front part of the holder main body and a second straight rod section positioned at the front end of the holder main body, and the first straight rod section is parallel to the second straight rod section; the holder main body is in an arc shape which is bent towards the lower part of the front end when seen from the side view; the front end of the holder main body is used for connecting a file head, and the rear end of the holder main body is provided with a striking cap. The utility model discloses a pulp cavity file holder and femoral pulp cavity file can satisfy clinical operation demand, and difficult damage muscle.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a pulp cavity file holder and a femoral pulp cavity file with the pulp cavity file holder.
Background
In minimally invasive hip joint replacement surgery, the muscle clearance approach has the advantages of small trauma in surgery and quick postoperative recovery because muscles do not need to be damaged, and is widely used in clinical work. It is the key to lift up the incision shallow layer with the thighbone near-end in the art, and then the pulp cavity file is squeezed into and has just become very important link, and the pulp cavity file itself has the radian, utilizes pulp cavity file holder (hand (hold) to hold the file head during the use after, for avoiding musculature, makes the smooth drive-in of file head, requires than higher to the angle and the radian of pulp cavity file holder. The angle and radian of the existing medullary cavity file holder cannot meet the requirements of clinical operations, and excessive muscle damage is easily caused, so that serious postoperative pain, slow postoperative rehabilitation and the like are brought.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a pulp cavity file holder and have this pulp cavity file holder's femoral pulp cavity file that can satisfy clinical operation demand, difficult damage muscle.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
in one aspect, there is provided a intramedullary canal file holder, comprising a holder body, wherein:
the holder main body is Z-shaped in plan view and comprises a first straight rod section, a diagonal rod section and a second straight rod section, wherein the first straight rod section is positioned in the middle and at the rear of the holder main body, the diagonal rod section is positioned in the front of the holder main body, the second straight rod section is positioned at the front end of the holder main body, and the first straight rod section and the second straight rod section are parallel;
the holder main body is in an arc shape which is bent towards the lower part of the front end when seen from the side view;
the front end of the holder main body is used for connecting a filing head, and the rear end of the holder main body is provided with a striking cap.
Further, the first straight rod section comprises a first straight part at the rear part and an arc part at the front part when viewed from the side, and the oblique rod section and the second straight rod section form a second straight part when viewed from the side.
Furthermore, the striking cap is detachably connected to the rear end of the holder main body, and/or the striking surface of the striking cap is an arc surface.
Furthermore, a positioning column is arranged at the rear end of the holder main body, and a positioning hole matched with the positioning column is formed in the striking cap;
or, the rear end of the holder main body is provided with a positioning hole, and the striking cap is provided with a positioning column matched with the positioning hole.
Furthermore, the front end face of the holder main body is provided with a plug hole for connecting the file head, and the plug hole is provided with a locking device for locking the file head.
Furthermore, the rear end of the file head is provided with an insertion column matched with the insertion hole, the side face of the front end of the holder main body is provided with a transverse through hole communicated with the insertion hole, the locking device comprises a locking rod positioned in the transverse through hole, the insertion column is provided with a first transverse groove matched with the rod part of the locking rod, and the locking rod is provided with a second transverse groove matched with the rod part of the insertion column.
Furthermore, an end cap is arranged at one end, close to the first straight rod section, of the locking rod, and a spring is arranged between the end cap and the side face of the holder main body.
Furthermore, a positioning column is arranged on the front end surface of the holder main body, and a positioning groove matched with the positioning column is arranged at the rear part of the file head;
or, the front end surface of the holder main body is provided with a positioning groove, and the rear part of the file head is provided with a positioning column matched with the positioning groove.
Furthermore, the holder main body is provided with a pin hole communicated with the transverse through hole, a limiting pin is arranged in the pin hole, and a limiting groove matched with the limiting pin is arranged on the outer surface of the locking rod opposite to the pin hole.
In another aspect, a femoral medullary cavity file is provided, which comprises the medullary cavity file holder and the file head.
The utility model discloses following beneficial effect has:
the utility model discloses a pulp cavity file holder and have this pulp cavity file holder's femoral pulp cavity file, including the holder main part, the holder main part is the zigzag from the plan view and includes the first straight pole section that is located the middle part of holder main part and rear portion, the down tube section that is located the front portion of holder main part and the second straight pole section that is located the front end of holder main part, first straight pole section is parallel with the second straight pole section; the holder main body is in an arc shape which is bent towards the lower part of the front end when seen from the side view, so that the holder main body is designed in a special angle and radian, muscle tissues can be avoided smoothly, a file head can be driven smoothly, the requirements of clinical operations are met, the opening is small, bleeding is less, excessive muscle injury is not easily caused, postoperative pain is reduced, and postoperative rehabilitation is fast; the rear end of the holder main body is provided with a striking cap, the contact surface is large, and multi-directional striking can be realized.
Drawings
FIG. 1 is a schematic view of the overall structure of the intramedullary canal file holder of the present invention in one direction;
FIG. 2 is a schematic view of the overall structure of the intramedullary canal file holder of the present invention in another direction;
FIG. 3 is a top view of the intramedullary canal file holder of the present invention;
FIG. 4 is a side view of the intramedullary canal file holder of the present invention;
FIG. 5 is an enlarged schematic view of the front end of the intramedullary canal file holder of the present invention;
FIG. 6 is a schematic structural view of the locking device of the file holder for medullary cavity of the present invention, wherein (a) is an unlocked state and (b) is a locked state;
FIG. 7 is an exploded view of the front end of the file holder of the present invention;
FIG. 8 is a schematic view of the locking rod and end cap of the file holder of the present invention;
FIG. 9 is a schematic view of the engagement structure of the holder main body and the striking cap of the intramedullary cavity file holder of the present invention;
FIG. 10 is a schematic structural view of the holder main body of the intramedullary canal file holder of the present invention;
FIG. 11 is a schematic view of the striking cap of the pulp cavity file holder of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
In one aspect, the present invention provides a medullary cavity file holder, as shown in fig. 1-11, comprising a holder main body 1, wherein:
the holder main body 1 is Z-shaped when viewed from a top view (fig. 3) and comprises a first straight rod section 11 positioned at the middle part and the rear part of the holder main body 1, a diagonal rod section 12 positioned at the front part of the holder main body 1, and a second straight rod section 13 positioned at the front end of the holder main body 1, wherein the first straight rod section 11 is parallel to the second straight rod section 13;
the holder main body 1 is in an arc shape bent downward from the front end as viewed in a side view (fig. 4);
the front end of the holder main body 1 is used for connecting a file head 2, and the rear end of the holder main body 1 is provided with a striking cap 3.
The utility model discloses a medullary cavity file holder, which comprises a holder main body, wherein the holder main body is Z-shaped in plan view and comprises a first straight rod section positioned in the middle and at the rear part of the holder main body, a diagonal rod section positioned in the front part of the holder main body and a second straight rod section positioned at the front end of the holder main body, and the first straight rod section is parallel to the second straight rod section; the holder main body is in an arc shape which is bent towards the lower part of the front end when seen from the side view, so that the holder main body is designed in a special angle and radian, muscle tissues can be avoided smoothly, a file head can be driven smoothly, the requirements of clinical operations are met, the opening is small, bleeding is less, excessive muscle injury is not easily caused, postoperative pain is reduced, and postoperative rehabilitation is fast; the rear end of the holder main body is provided with the striking cap, the contact surface is large, and multi-directional striking can be realized. The medullary cavity file holder of the utility model is convenient for making the file head to be squeezed into the medullary cavity.
As shown in FIG. 4, the first straight rod segment 11 preferably includes a first straight portion 111 at the rear and an arc portion 112 at the front when viewed from the side, and the slanting rod segment 12 and the second straight rod segment 13 form a second straight portion 113 when viewed from the side, so that the holder body 1 adopts a segmented design, the overall arc shape is more reasonable, and the force strength of the holder body 1 can be improved. It should be noted that the thick black lines in the middle of the holder main body 1 in fig. 3 to 4 are used to illustrate the bending angle of the holder main body 1, and are not actual structures.
As shown in Figs. 9-11, the striking cap 3 is preferably detachably attached to the rear end of the holder body 1 so as to be easily assembled and disassembled. The striking surface of the striking cap 3 (i.e., the right side surface of the embodiment shown in fig. 9) is preferably a curved surface, so that the impact point can be concentrated during striking, and striking is facilitated. Wherein, the detachable connection can adopt various structural forms, such as screw connection and the like, which can be easily thought by those skilled in the art, however, for the convenience of implementation, the utility model can adopt the following structural forms:
structural form 1: the rear end of the holder main body 1 can be provided with a positioning column 14, the striking cap 3 is provided with a positioning hole 31 matched with the positioning column 14, and the positioning column 14 is matched with the positioning hole 31 in an inserting manner;
structural form 2 (not shown): the rear end of the holder main body can be provided with a positioning hole, and the striking cap is provided with a positioning column matched with the positioning hole.
As shown in Figs. 5-7, in order to facilitate the connection and locking of the file head 2, the holder body 1 may be provided at a front end surface thereof with an insertion hole 15 for connecting the file head 2, and locking means 16 for locking the file head 2 may be provided at the insertion hole 15. The locking means 16 may take various configurations as will be apparent to those skilled in the art, for example, the locking means may include a threaded hole formed at the front end of the holder body and communicating with the insertion hole, and a locking screw for laterally pressing and fixing the rasp head is provided in the threaded hole; however, for convenient realization swift locking and unblock, the utility model discloses preferred following structural style that adopts:
as shown in fig. 6-7, the rear end of the file head 2 is provided with an insertion post 21 which is matched with the insertion hole 15, the side surface (i.e. arrow direction shown in fig. 3) of the front end of the holder body 1 is provided with a transverse through hole 17 which is communicated with the insertion hole 15, the locking device 16 comprises a locking rod 161 which is positioned in the transverse through hole 17, the insertion post 21 is provided with a first transverse groove 211 which is matched with the rod part of the locking rod 161 (here, "transverse" means perpendicular to the length direction of the insertion post 21), and the locking rod 161 is provided with a second transverse groove 1611 which is matched with the rod part of the insertion post 21 (here, "transverse" means perpendicular to the length direction of the locking rod 161), so that the locking mode of the grooves is adopted, muscle tissue is not interfered, and the file head is convenient to replace.
When in use, the locking rod 161 is first moved to make the second transverse groove 1611 of the locking rod 161 correspond to the position of the insertion post 21 at the rear end of the file head 2, the insertion post 21 at the rear end of the file head 2 is smoothly inserted into the insertion hole 15 and enters the second transverse groove 1611 (shown in fig. 6 (a)), then when the insertion post 21 is inserted in place, the first transverse groove 211 of the insertion post 21 corresponds to the position of the locking rod 161 (at this time, the positions of the first transverse groove 211 and the second transverse groove 1611 also correspond), and then the locking rod 161 is moved to make the positions of the first transverse groove 211 and the second transverse groove 1611 staggered, and the rod portion of the locking rod 161 enters the first transverse groove 211 (shown in fig. 6 (b)), so as to lock the insertion post 21 at the rear end of the file head 2 in the insertion hole 15.
To facilitate self-locking, the end of the locking lever 161 near the first straight lever segment 11 may be provided with an end cap 162, and a spring 163 is provided between the end cap 162 and the side of the holder body 1, and the spring 163 may keep the locking lever 161 automatically in a locked state. At this time, the end cap 162 is pressed to smoothly insert the insertion post 21 at the rear end of the rasp head 2 (i.e., as shown in fig. 6 (a)), and the end cap 162 is released to lock the insertion post 21 at the rear end of the rasp head 2 in the insertion hole 15 (i.e., as shown in fig. 6 (b)). The end cap 162 is preferably U-shaped in longitudinal cross-section such that the spring 163 is encased within the end cap 162 to prevent the spring 163 from backing out and interfering with the surrounding soft tissue.
For better locking the file head 2, the front end surface of the holder body 1 may be provided with a positioning post 18, the rear portion of the file head 2 is provided with a positioning groove 22 matching with the positioning post 18, and the positioning post 18 is matched with the positioning groove 22 in an inserting manner, so that the file head 2 is prevented from rotating axially along the inserting post 21. It is also conceivable that a positioning groove is formed on the front end surface of the holder main body, and a positioning post matched with the positioning groove is formed on the rear part of the file head, so that the file head can be locked well and the file head 2 is prevented from rotating along the axial direction of the insertion post 21.
In order to prevent the locking rod 161 from coming out of the transverse through hole 17, the holder body 1 may be provided with a pin hole 19 communicating with the transverse through hole 17, the stopper pin 10 is provided in the pin hole 19, and a stopper groove 1612 for engaging with the stopper pin 10 is provided on an outer surface (i.e., an upper surface shown in fig. 6 (a)) of the locking rod 161 opposite to the pin hole 19.
On the other hand, the utility model provides a femoral medullary cavity file, which comprises the medullary cavity file holder and the file head 2. Since the structure of the intramedullary cavity file holder is the same as that of the above, the detailed description is omitted.
The utility model discloses a femoral medullary cavity file, which comprises a holder main body, wherein the holder main body is Z-shaped in plan view and comprises a first straight rod section positioned in the middle and at the rear part of the holder main body, a diagonal rod section positioned in the front part of the holder main body and a second straight rod section positioned at the front end of the holder main body, and the first straight rod section is parallel to the second straight rod section; the holder main body is in an arc shape which is bent downwards when viewed from a side view, so that the holder main body is designed in a special angle and radian, muscle tissues can be avoided smoothly, a file head can be driven smoothly, the requirements of clinical operations are met, the opening is small, bleeding is less, excessive muscle injury is not easily caused, postoperative pain is reduced, and postoperative rehabilitation is fast; the rear end of the holder main body is provided with the striking cap, the contact surface is large, and multi-directional striking can be realized. The utility model discloses be convenient for make the file head squeeze into in the pulp cavity.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A medullary cavity file holder, which is characterized by comprising a holder main body, wherein:
the holder main body is Z-shaped in plan view and comprises a first straight rod section, a diagonal rod section and a second straight rod section, wherein the first straight rod section is positioned in the middle and at the rear of the holder main body, the diagonal rod section is positioned in the front of the holder main body, the second straight rod section is positioned at the front end of the holder main body, and the first straight rod section and the second straight rod section are parallel;
the holder main body is in an arc shape which is bent towards the lower part of the front end when seen from the side view;
the front end of the holder main body is used for connecting a filing head, and the rear end of the holder main body is provided with a striking cap.
2. The intramedullary cavity file holder of claim 1, wherein the first straight segment includes a first straight portion at a rear portion and an arc portion at a front portion when viewed in a side view, and the beveled segment and the second straight segment together form a second straight portion when viewed in a side view.
3. The intramedullary cavity file holder of claim 1, wherein the striking cap is removably attached to the rear end of the holder body, and/or wherein the striking surface of the striking cap is curved.
4. The intramedullary cavity file holder of claim 3, wherein the holder body has a positioning post at a rear end thereof, and the striking cap has a positioning hole for engaging with the positioning post;
or, the rear end of the holder main body is provided with a positioning hole, and the striking cap is provided with a positioning column matched with the positioning hole.
5. The intramedullary canal file holder of any one of claims 1 to 4, wherein the holder body has a front end surface provided with a plug hole for connecting a file head, and the plug hole is provided with a locking means for locking the file head.
6. The intramedullary canal file holder of claim 5, wherein the back end of the file head is provided with a plug-in post matched with the plug-in hole, the front end side of the holder body is provided with a transverse through hole communicated with the plug-in hole, the locking device comprises a locking rod positioned in the transverse through hole, the plug-in post is provided with a first transverse groove matched with the rod part of the locking rod, and the locking rod is provided with a second transverse groove matched with the rod part of the plug-in post.
7. The intramedullary cavity file holder of claim 6, wherein the locking rod includes an end cap at an end thereof adjacent to the first straight rod segment, and a spring is disposed between the end cap and a side of the holder body.
8. The intramedullary canal file holder of claim 6, wherein the holder body has a positioning post on the front end surface thereof, and the file head has a positioning groove on the rear portion thereof for engaging with the positioning post;
or, the front end surface of the holder main body is provided with a positioning groove, and the rear part of the file head is provided with a positioning column matched with the positioning groove.
9. The intramedullary canal file holder of claim 6, wherein the holder body is provided with a pin hole communicating with the transverse through hole, a limit pin is arranged in the pin hole, and a limit groove matched with the limit pin is arranged on the outer surface of the locking rod opposite to the pin hole.
10. A femoral intramedullary canal file comprising the intramedullary canal file holder and the file head of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122295160.1U CN217118516U (en) | 2021-09-18 | 2021-09-18 | Medullary cavity file holder and femoral medullary cavity file |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122295160.1U CN217118516U (en) | 2021-09-18 | 2021-09-18 | Medullary cavity file holder and femoral medullary cavity file |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217118516U true CN217118516U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122295160.1U Active CN217118516U (en) | 2021-09-18 | 2021-09-18 | Medullary cavity file holder and femoral medullary cavity file |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217118516U (en) |
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2021
- 2021-09-18 CN CN202122295160.1U patent/CN217118516U/en active Active
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