CN218832875U - Medical reference frame fixer - Google Patents
Medical reference frame fixer Download PDFInfo
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- CN218832875U CN218832875U CN202222869853.1U CN202222869853U CN218832875U CN 218832875 U CN218832875 U CN 218832875U CN 202222869853 U CN202222869853 U CN 202222869853U CN 218832875 U CN218832875 U CN 218832875U
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- reference frame
- shaped groove
- connecting shaft
- chuck
- spicule
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Abstract
The utility model relates to a medical reference frame fixer, which comprises a fixed block, a connecting shaft, a spicule chuck and a reference frame chuck, wherein one end of the fixed block is provided with a transversely through U-shaped groove I, the other end of the fixed block is provided with a longitudinally through U-shaped groove II, and a pinhole is arranged on the fixed block between the U-shaped groove I and the U-shaped groove II; the connecting shaft is respectively arranged in the U-shaped groove I and the U-shaped groove II, and the axial direction of the connecting shaft is vertical to the U-shaped groove in which the connecting shaft is arranged; the spicule chuck is connected with a connecting shaft arranged in the U-shaped groove I through a bolt; the reference frame chuck is connected with a connecting shaft arranged in the U-shaped groove II through a bolt; the spicule chuck and the reference frame chuck can rotate around the axis of the connecting shaft corresponding to the spicule chuck and the axis of the bolt respectively. The utility model discloses can realize the universal regulation of reference frame chuck and spicule chuck angle and direction, make its applicable orthopedic surgery in different skeleton positions, the commonality is good.
Description
Technical Field
The utility model belongs to the field of medical instrument processing anchor clamps, concretely relates to medical reference frame fixer.
Background
The orthopedic surgery navigation is that after a reference frame and human skeleton are stably fixed, the relative position relation between a surgical tool and a focus part of a patient is accurately positioned through an image data acquisition system. Wherein the frame of reference is assembled on a frame of reference holder, and the frame of reference holder is fixed on the operation bone structure through two spicules. In the bone surgery of different bone parts, the angle requirements of the two spicules are different. The needle holes for installing the spicules of the existing reference frame fixer are fixed, and the two spicules are arranged in parallel after being installed, so that the existing reference frame fixer cannot be applied to orthopedic surgeries of different types, and the universality is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a medical reference frame fixer to solve the poor problem of its commonality.
The utility model discloses a medical reference frame fixer is realized like this:
a medical reference frame fixer comprises
The fixing block is provided with a transversely-through U-shaped groove I at one end, a longitudinally-through U-shaped groove II at the other end, and a pinhole is arranged on the fixing block between the U-shaped groove I and the U-shaped groove II;
the connecting shaft is respectively arranged in the U-shaped groove I and the U-shaped groove II, and the axial direction of the connecting shaft is vertical to the U-shaped groove in which the connecting shaft is arranged;
the bone needle chuck is connected with a connecting shaft arranged in the U-shaped groove I through a bolt;
the reference frame chuck is connected with a connecting shaft arranged in the U-shaped groove II through a bolt;
the spicule chuck and the reference frame chuck can rotate around the axis of the corresponding connecting shaft and the axis of the bolt respectively.
Furthermore, corresponding through holes are formed in two side walls of the U-shaped groove I and the U-shaped groove II respectively, and the connecting shaft is arranged in the corresponding U-shaped groove through the through holes.
Furthermore, the two ends of the connecting shaft are respectively located in the two through holes of the U-shaped groove where the connecting shaft is located, and the inner diameter of each through hole is larger than the outer diameter of the connecting shaft.
Furthermore, the connecting shaft is radially provided with a threaded through hole, and the tail part of the bolt penetrates through the spicule chuck or the reference frame chuck to be matched in the corresponding threaded through hole.
Furthermore, a threaded hole is formed in the fixing block, the threaded hole is communicated with the needle hole and is axially vertical to the needle hole, and a compression screw is installed in the threaded hole.
Further, the spicule chuck includes splint I, and with splint II of splint I complex, splint I and II homonymy tip of splint are provided with the needle groove of relative arrangement.
Furthermore, a caulking groove is formed in one end, far away from the needle groove, of the clamping plate I, a clamping block is arranged at one end, far away from the needle groove, of the clamping plate II, and the clamping block is correspondingly matched in the caulking groove.
Further, a bolt for assembling the spicule chuck sequentially penetrates through the clamping plate I and the clamping plate II and is connected with the corresponding connecting shaft.
Furthermore, the reference frame chuck is located in a U-shaped structure, a round hole cavity is formed in the bottom of the U-shaped opening of the reference frame chuck, and the diameter of the round hole cavity is larger than the width of the U-shaped opening.
Further, bolts for assembling the reference frame chuck sequentially penetrate through the two side walls of the reference frame chuck and are connected with the corresponding connecting shafts.
After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:
the utility model discloses a setting of U type groove I, bolt and connecting axle has realized the universal regulation of spicule chuck angle and direction, makes the reference frame fixer applicable in the orthopedic surgery at different skeleton positions, convenient to use, the commonality is good.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
FIG. 1 is a block diagram of a medical reference frame holder according to a preferred embodiment of the present invention;
fig. 2 is an exploded view of a medical reference frame holder according to a preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a medical reference frame holder according to a preferred embodiment of the present invention;
FIG. 4 is a view showing the use state of the medical reference frame holder according to the preferred embodiment of the present invention;
in the figure: fixed block 1, U type groove I11, U type groove II 12, pinhole 13, through-hole I14, through-hole II 15, screw hole 16, spicule chuck 2, splint I21, splint II 22, needle groove 23, caulking groove 24, fixture block 25, mounting hole I26, reference frame chuck 3, U type opening 31, round hole chamber 32, mounting hole II 33, connecting axle I4, screw thread through-hole I41, connecting axle II 5, screw thread through-hole II 51, bolt I6, bolt II 7, housing screw 8, reference frame A, spicule B.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. 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.
Thus, the following detailed description of the embodiments of the present invention, presented 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.
As shown in fig. 1-4, a medical reference frame fixer comprises a fixing block 1, a connecting shaft, a spicule chuck 2 and a reference frame chuck 3, wherein one end of the fixing block 1 is provided with a transversely through U-shaped groove I11, the other end of the fixing block is provided with a longitudinally through U-shaped groove II 12, and a pinhole 13 is arranged on the fixing block 1 between the U-shaped groove I11 and the U-shaped groove II 12; the connecting shaft is respectively arranged in the U-shaped groove I11 and the U-shaped groove II 12, and the axial direction of the connecting shaft is vertical to the U-shaped groove in which the connecting shaft is arranged; the spicule chuck 2 is connected with a connecting shaft arranged in the U-shaped groove I11 through a bolt; the reference frame chuck 3 is connected with a connecting shaft arranged in the U-shaped groove II 12 through a bolt; the spicule cartridge 2 and the reference frame cartridge 3 are rotatable about the axis of their respective connecting shafts and the axis of the bolt.
In order to facilitate the installation of the connecting shaft, two side walls of the U-shaped groove I11 and the U-shaped groove II 12 are respectively provided with corresponding through holes, and the connecting shaft is arranged in the corresponding U-shaped groove through the through holes.
Specifically, a connecting shaft I4 assembled in a U-shaped groove I11 penetrates into the U-shaped groove I11 from any through hole I14, so that two ends of the connecting shaft I4 are respectively positioned in the two through holes I14;
and the connecting shaft II 5 assembled in the U-shaped groove II 12 penetrates into the U-shaped groove II 12 from any through hole II 15, so that two ends of the connecting shaft II 5 are respectively positioned in the two through holes II 15.
Specifically, the inner diameter of a through hole I14 in the U-shaped groove I11 is larger than the outer diameter of the connecting shaft I4, and the spicule chuck 2 can be driven to rotate around the axis of the connecting shaft I4 through the rotation of the connecting shaft I4 in the through hole I14;
the inner diameter of a through hole II 15 in the U-shaped groove II 12 is larger than the outer diameter of the connecting shaft II 5, and the reference frame chuck 3 can be driven to rotate around the axis of the connecting shaft II 5 through the rotation of the connecting shaft II 5 in the through hole II 15.
In order to realize the matching between the spicule chuck 2 and the reference frame chuck 3 and the corresponding connecting shaft through the bolts, the connecting shaft is radially provided with threaded through holes, and the tail parts of the bolts penetrate through the spicule chuck 2 or the reference frame chuck 3 and are in running fit in the corresponding threaded through holes.
Specifically, a bolt I6 for fixing the bone needle chuck 2 rotates towards the direction of a U-shaped groove I11 until the tail end of the bolt I6 penetrates through a threaded through hole I41 of a connecting shaft I4 and abuts against the bottom of the U-shaped groove I11, and at the moment, the bone needle chuck 2 and the connecting shaft I4 can be fixed and cannot rotate.
Correspondingly, to keeping away from I11 direction rotating bolt I6 in U type groove, loosening bolt I6 promptly, can be around the rotatory spicule chuck 2 alone of the axis of bolt I6, still can pass through the rotatory spicule chuck 2 of connecting axle I4 around the axis of connecting axle I4 to realize the rotation of the different angles of spicule chuck 2 and direction, treat to rotate to required position after then can fix spicule chuck 2 and connecting axle I4 by the bolt I6 of screwing once more.
The spicule chuck 2 can rotate 360 degrees around the axis of the bolt I6, and rotate 180 degrees around the axis of the connecting shaft I4, namely the opening angle of the U-shaped groove I11.
Similarly, the bolt II 7 for fixing the reference frame chuck 3 rotates towards the direction of the U-shaped groove II 12 until the tail end of the bolt II 7 penetrates through the threaded through hole II 51 of the connecting shaft II 5 and abuts against the bottom of the U-shaped groove II 12, and at the moment, the reference frame chuck 3 and the connecting shaft II 5 can be fixed and cannot rotate.
Correspondingly, rotating the bolt II 7 in the direction far away from the U-shaped groove II 12, namely loosening the bolt II 7, can independently rotate the reference frame chuck 3 around the axis of the bolt II 7, and can also rotate the reference frame chuck 3 around the axis of the connecting shaft II 5 through the connecting shaft II 5, so that the rotation of the reference frame chuck 3 in different angles and directions is realized, and after the reference frame chuck 3 and the connecting shaft II 5 are fixed by screwing the bolt II 7 again after the reference frame chuck 3 is rotated to a required position.
The reference frame chuck 3 can rotate 360 degrees around the axis of the bolt II 7, and rotate 180 degrees around the axis of the connecting shaft II 5, namely the opening angle of the U-shaped groove II 12.
After the spicule B passes through the needle hole 13 and moves to a proper length, the compression screw 8 is screwed into the threaded hole 16, so that the inner end of the compression screw 8 is compressed on the spicule B, and the spicule B is fixed.
The bone needle chuck 2 is used for fixing a bone needle B, and in order to clamp the bone needle B, the bone needle chuck 2 comprises a clamping plate I21 and a clamping plate II 22 matched with the clamping plate I21, and needle grooves 23 which are oppositely arranged are formed in the end portions of the clamping plate I21 and the clamping plate II 22 on the same side.
Spicules B are arranged in two opposite needle grooves 23, and clamping plates I21 and II 22 are matched through bolts I6, so that the spicules B are clamped.
In order to realize the stable cooperation of splint I21 and splint II 22, avoid both misplacements, splint I21 is kept away from its needle groove 23 one end and is provided with caulking groove 24, and splint II 22 is kept away from its needle groove 23 one end and is provided with fixture block 25, and fixture block 25 corresponds the cooperation in caulking groove 24.
In order to connect the clamping plate I21 and the clamping plate II 22 to the outer side of the connecting shaft I4 through the bolts I6, the bolts for assembling the spicule chuck 2 sequentially penetrate through the clamping plate I21 and the clamping plate II 22 and are connected with the corresponding connecting shafts.
The clamping plates I21 and II 22 are provided with corresponding mounting holes I26, and the tail portions of the bolts I6 penetrate through the two mounting holes I26 and then are assembled in threaded through holes I41 of the connecting shaft I4.
In order to fix the reference frame A, the reference frame chuck 3 is located in a U-shaped structure, the bottom of a U-shaped opening 31 of the U-shaped structure is provided with a round hole cavity 32, and the diameter of the round hole cavity 32 is larger than the width of the U-shaped opening 31.
The connecting rod of the reference frame A is placed in the round hole cavity 32, and the U-shaped opening 31 is locked by the bolt II 7 to realize the fixation of the reference frame A.
In order to be able to connect the reference frame clamp 3 to the outside of the connecting shaft ii 5 by means of the bolts ii 7, the bolts that fit the reference frame clamp 3 pass through the two side walls of the reference frame clamp 3 in succession and are connected to the corresponding connecting shaft.
Two side walls of the reference frame chuck 3 are provided with corresponding mounting holes II 33, and the tail part of the bolt II 7 penetrates through the two mounting holes II 33 and then is assembled in a threaded through hole II 51 of the connecting shaft II 5.
In bone surgery, need loosen screw I6 and screw II 7, then medical personnel can be according to the skeleton position of required operation, adjust spicule chuck 2 and reference frame chuck 3 specific angle and direction, wait to adjust to required position after, recycle screw I6 and screw II 7 respectively with spicule chuck 2 and reference frame chuck 3's position fixed, can realize the fixed of spicule B and reference frame A position, thereby directly be applied to in this bone surgery navigation, it is very convenient to use, and the commonality is good.
The utility model discloses in, spicule chuck 2 and reference frame chuck 3 are installed through the cooperation of bolt and connecting axle respectively, have not only realized the universal regulation of both angles and direction, convenient to use, and application scope is wide, and easy dismouting is moreover when damage appears in some part, can maintain the change pertinence, reduces use cost.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.
Claims (10)
1. A medical reference frame fixer is characterized by comprising
The fixing block (1) is provided with a transversely through U-shaped groove I (11) at one end and a longitudinally through U-shaped groove II (12) at the other end, and a pinhole (13) is arranged on the fixing block (1) between the U-shaped groove I (11) and the U-shaped groove II (12);
the connecting shaft is respectively arranged in the U-shaped groove I (11) and the U-shaped groove II (12), and the axial direction of the connecting shaft is vertical to the U-shaped groove in which the connecting shaft is arranged;
the bone needle chuck (2) is connected with a connecting shaft arranged in the U-shaped groove I (11) through a bolt;
the reference frame chuck (3) is connected with a connecting shaft arranged on the U-shaped groove II (12) through a bolt;
the spicule chuck (2) and the reference frame chuck (3) can rotate around the axis of the corresponding connecting shaft and the axis of the bolt respectively.
2. The medical reference frame fixer according to claim 1, wherein two side walls of the U-shaped groove I (11) and the U-shaped groove II (12) are respectively provided with corresponding through holes, and the connecting shaft is arranged in the corresponding U-shaped groove through the through holes.
3. The medical reference frame fixer according to claim 2, wherein both ends of the connecting shaft are respectively located in two through holes of the U-shaped groove in which the connecting shaft is located, and the inner diameter of the through holes is larger than the outer diameter of the connecting shaft.
4. The medical reference frame fixer according to claim 1, wherein the connecting shaft is provided with a threaded through hole in the radial direction, and the tail of the bolt passes through the spicule chuck (2) or the reference frame chuck (3) and is matched in the corresponding threaded through hole.
5. The medical reference frame fixer as claimed in claim 1, wherein the fixing block (1) is provided with a threaded hole (16), the threaded hole (16) is communicated with the pinhole (13) and is axially vertical, and the threaded hole (16) is provided with a compression screw (8).
6. The medical reference frame fixture as claimed in claim 1, wherein the spicule holder (2) comprises a clamping plate I (21) and a clamping plate II (22) matched with the clamping plate I (21), and the ends of the clamping plate I (21) and the clamping plate II (22) on the same side are provided with oppositely arranged needle grooves (23).
7. The medical reference frame fixer according to claim 6, wherein one end of the clamping plate I (21) far away from the needle groove (23) is provided with a caulking groove (24), one end of the clamping plate II (22) far away from the needle groove (23) is provided with a fixture block (25), and the fixture block (25) is correspondingly matched in the caulking groove (24).
8. Medical reference frame fixture according to claim 6, wherein the bolts assembling said spicule cartridge (2) pass through said clamping plates I (21) and II (22) in sequence and are connected to the corresponding connection shafts.
9. Medical reference frame holder according to claim 1, wherein said reference frame clamp (3) is in a U-shaped configuration with a circular bore (32) at the bottom of the U-shaped opening (31), the diameter of said circular bore (32) being larger than the width of said U-shaped opening (31).
10. The medical reference frame holder according to claim 9, characterized in that the bolts that assemble the reference frame clamp (3) pass through both side walls of the reference frame clamp (3) in sequence and are connected to the corresponding connection shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222869853.1U CN218832875U (en) | 2022-10-28 | 2022-10-28 | Medical reference frame fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222869853.1U CN218832875U (en) | 2022-10-28 | 2022-10-28 | Medical reference frame fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218832875U true CN218832875U (en) | 2023-04-11 |
Family
ID=87300257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222869853.1U Active CN218832875U (en) | 2022-10-28 | 2022-10-28 | Medical reference frame fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218832875U (en) |
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2022
- 2022-10-28 CN CN202222869853.1U patent/CN218832875U/en active Active
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