CN218960845U - Adjustable tibia side guide for bone tunnel preparation - Google Patents
Adjustable tibia side guide for bone tunnel preparation Download PDFInfo
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- CN218960845U CN218960845U CN202221692460.1U CN202221692460U CN218960845U CN 218960845 U CN218960845 U CN 218960845U CN 202221692460 U CN202221692460 U CN 202221692460U CN 218960845 U CN218960845 U CN 218960845U
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Abstract
The utility model discloses an adjustable tibia side guider for preparing a bone tunnel, which comprises the following components: the claw-shaped positioning rod is inserted and installed on the guide body, the guide sleeve is nested and installed on the guide body, and the guide sleeve further comprises: the double-end claw is fixedly arranged at the front end of the claw-shaped positioning rod, and the sleeve screw is arranged on the bottom side surfaces of the guide body and the guide sleeve in a threaded manner. This tibia side director is used in preparation of adjustable bone tunnel can use the double-end claw part on the locating lever of "claw" to fix a position tibia side anterior cruciate ligament dead center, makes the drill point and the guide pin of triangle-shaped position structure jack-in tibia side director to tibia near-end cortex, and the mode that the guide pin can utilize the summit to aim at the claw point position of double-end claw in the tibia side director for guide pin and drill point can accurately bore into corresponding anterior cruciate ligament dead center footprint along the director sleeve.
Description
Technical Field
The utility model relates to the technical field of tibial side guides, in particular to an adjustable tibial side guide for preparing a bone tunnel.
Background
The advantage of the reconstruction of the double anterior cruciate ligament is that the Anterior Medial Bundle (AMB) and the Posterior Lateral Bundle (PLB) of the anterior cruciate ligament are reconstructed simultaneously, but the technical operation is more complex, and fracture easily occurs between the AMB and the PLB bone tunnel, so that two sets of internal fixation systems are required during fixation, which causes a certain economic burden to patients.
The current banded tibia side director in China is mainly through gradually expanding the manual banded that becomes of minor circular bone tunnel with the bone file, and is higher to operator's operation technical requirement, needs long-time training and abundant operation experience to current tibia side director is when preparing tibia tunnel, is inconvenient for accurate positioning, makes the degree of difficulty of operation higher, is unfavorable for the high-efficient use convenience and the accuracy that promotes tibia side director, to above-mentioned problem, needs innovatively to design on original tibia side director's basis.
Disclosure of Invention
The utility model aims to provide an adjustable tibial side guide for bone tunnel preparation, which aims to solve the problems that the prior tibial side guide is complex and inconvenient in use steps in the prior art, so that a straight strip or a C-shaped dead point of the tibial side of an anterior cruciate ligament cannot be accurately reconstructed when bone tunnel preparation is carried out through the prior tibial side guide in operation, and the operation difficulty is high and the operation time is long.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an adjustable tibial side guide for bone tunnel preparation, comprising:
the claw-shaped positioning rod is inserted and installed on the guide body, and the guide sleeve is nested and installed on the guide body;
further comprises:
the double-end claw is fixedly arranged at the front end of the claw-type positioning rod;
a sleeve screw threadedly mounted on bottom side surfaces of the guide body and the guide sleeve;
and the claw rod screw is arranged on the outer side surfaces of the guide body and the claw-type positioning rod in a threaded manner.
The arrangement of the structure enables the tibia side guide to utilize the double-end claw structure on the claw-shaped positioning rod, so that a doctor can be assisted in inserting the drill needle and the guide needle in the sleeve of the tibia side guide into the joint of a patient conveniently, the drill needle and the guide needle can be aligned conveniently, and the preparation of the banded bone tunnel can be built accurately.
Preferably, the guide body is further provided with a positioning clamping jaw groove corresponding to the claw-shaped positioning rod, the radian of the positioning clamping jaw groove is equal to that of the claw-shaped positioning rod, the claw-shaped positioning rod is of a bending structure in a shape of a Chinese character '<', and the claw-shaped positioning rod can provide supporting and positioning capabilities for doctor operation in operation and can be conveniently corresponding to the drill needle and the guide needle in the guide sleeve.
Preferably, the double-end claw and the claw-shaped positioning rod form an integrated structure, the claw head part of the double-end claw is a symmetrical needle-shaped claw tip, the claw-shaped positioning rod forms a jogged structure through the positioning clamping jaw groove and the guider body, and meanwhile, the rear side of the positioning clamping jaw groove is also provided with a sleeve clamping groove.
Preferably, the sleeve clamping groove is of a U-shaped semi-surrounding groove body structure, the sleeve clamping groove and the guide sleeve form a clamping structure, the drill pins and the guide pins are respectively inserted in the sleeve clamping groove, the guide sleeve can conveniently replace different bone tunnel preparation forms through the sleeve clamping groove, and therefore the device is more convenient and quick to use and can provide different guide sleeve structures for patients.
Preferably, the drill bit is symmetrically inserted and connected to two sides of the guide sleeve, and the drill needle and the guide needle form a triangular position structure on the guide sleeve, and the arrangement of the structure enables the puncture positioning of the drill needle and the guide needle in the guide sleeve to be more accurate and stable, so that a doctor can conveniently and conveniently operate in an operation, and the operation difficulty and time are saved.
Compared with the prior art, the utility model has the beneficial effects that: this tibia side director is used in preparation of adjustable bone tunnel can use the double-end claw part on the locating lever of "claw" to fix a position tibia side anterior cruciate ligament dead center to can utilize the drill point of triangle-shaped position structure in the director sleeve and guide pin jack-in tibia side director to tibia near-end cortex, make in the tibia side director guide pin can utilize the mode that the summit aimed at the claw point position of double-end claw, thereby in the operation stable control guide pin and drill point accurately bore corresponding joint intracavity along the director sleeve, its specific content is as follows:
1. the tibia side guide device for preparing the adjustable bone tunnel is characterized in that a positioning clamping jaw groove, a claw-shaped positioning rod and a double-ended claw structure are arranged in the guide device body, the claw-shaped positioning rod is accurately embedded and installed in the guide device body along the positioning clamping jaw groove, and the double-ended claw structure symmetrical to the front end of the claw-shaped positioning rod is utilized to accurately correspond to a guide needle and a drill needle when the guide device is used, so that the preparation of the tibia tunnel in operation is more accurate and convenient, the difficulty of preparing operation of the tibia straight strip-shaped or C-shaped tunnel can be conveniently reduced by the device, the operation steps of doctors in operation are effectively simplified, and the operation is more accurate and stable;
2. this tibia side director is used in preparation of adjustable bone tunnel is provided with sleeve draw-in groove, director sleeve, drill point and guide pin's structure in the director body, through the accurate firm block of sleeve draw-in groove with the director sleeve in the director is originally to utilize the hole groove of triangle-shaped position structure in the director sleeve, in inserting patient's joint with the accurate puncture of drill point and guide pin, realize that the device can be convenient for pinpoint and prepare tibia tunnel, make the device have more convenient and practical's function.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic perspective view of the utility model showing the detachable "claw" type positioning rod and the guide body;
FIG. 3 is a schematic view of an exploded perspective view of the present utility model;
FIG. 4 is a schematic perspective view of the guide body and the claw-shaped positioning rod of the present utility model after being disassembled and separated;
fig. 5 is an exploded perspective view of the guide sleeve and drill and guide pins of the present utility model.
In the figure: 1. a guide body; 2. positioning a clamping jaw groove; 3. a claw-type positioning rod; 4. double-ended claws; 5. a sleeve clamping groove; 6. a sleeve screw; 7. a claw-rod screw; 8. a guide sleeve; 9. a drill needle; 10. and (5) a guide pin.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: an adjustable tibial side guide for bone tunnel preparation, comprising: the claw-shaped positioning rod 3 is inserted and installed on the guide body 1, the guide sleeve 8 is nested and installed on the guide body 1, and the guide device further comprises: a double-ended claw 4 fixedly installed at the front end of the claw-type positioning rod 3, a sleeve screw 6 screwed on the bottom side surfaces of the guide body 1 and the guide sleeve 8, and a claw rod screw 7 screwed on the outer side surfaces of the guide body 1 and the claw-type positioning rod 3;
when the device is used, firstly, on the tibia side, a claw-shaped positioning rod 3 in a positioning clamping jaw groove 2 corresponds to the central point and the rear extension point of the tibia side dead point of the anterior cruciate ligament of the guide body 1, at the moment, the drill needle 9 and the guide needle 10 in the guide sleeve 8 are arranged in a triangular position structure, and then the inclination angle of the tibia guide is adjusted according to the proximal anatomy of the tibia and the preference of an operator, so that the double-headed claw 4 on the claw-shaped positioning rod 3 is finally connected with the drill needle 9 and the guide needle 10 in a mutually corresponding penetrating manner, and the preparation position and the direction of the tibia tunnel are accurately positioned.
When the tibia side guide is used, firstly, a straight strip-shaped or C-shaped bone tunnel is selectively established according to the approximate shape of the tibia side dead center of the anterior cruciate ligament or the personal preference of an operator, specifically, according to the description of fig. 1 and 2, a positioning clamping jaw groove 2 is correspondingly formed on a guide body 1 through a jaw-shaped positioning rod 3, the radian of the positioning clamping jaw groove 2 is equal to that of the jaw-shaped positioning rod 3, the jaw-shaped positioning rod 3 is in a "<" bending structure, a double-ended jaw 4 and the jaw-shaped positioning rod 3 form an integrated structure, the jaw head part of the double-ended jaw 4 is a symmetrical needle-shaped jaw tip, the jaw-shaped positioning rod 3 forms a jogged structure with the guide body 1 through the positioning clamping jaw groove 2, the rear side of the positioning clamping jaw groove 2 is also provided with a sleeve clamping groove 5, the angle of the tibia side guide can be set according to the anatomy of the proximal end of a patient and the personal preference of the operator and is fixed through a jaw-shaped positioning rod screw 7, then the jaw-shaped positioning rod 3 of the guide body 1 is used for positioning the front part of the tibia side of the needle 3 to the tibia side of the sleeve body along the anterior cruciate ligament, and then the sleeve needle-shaped positioning rod 9 is locked to the proximal to the tibia needle-shaped ligament insertion hole 10;
after the drill needle 9 and the guide needle 10 in the guide sleeve 8 are respectively inserted into the tibia, specifically, according to fig. 1 and 2, the sleeve clamping groove 5 is in a semi-surrounding groove body structure in a U shape, the sleeve clamping groove 5 and the guide sleeve 8 form a clamping structure, the drill needle 9 and the guide needle 10 are respectively inserted into the sleeve clamping groove, the drill needle 9 is symmetrically inserted and connected to two sides of the guide sleeve 8, the drill needle 9 and the guide needle 10 form a triangle position structure on the guide sleeve 8, at this time, the guide needle 10 with the corresponding diameter is drilled through a 2.4mm hole of the guide sleeve 8, after the guide needle 10 is confirmed to be aligned with the top point of the double-end claw 4 of the claw-shaped positioning rod 3, the left leg and the right leg are distinguished, the drill needle 9 with the corresponding diameter is drilled into the joint cavity through a 4.5mm hole of the guide sleeve 8, at this time, the drill tip end of the drill needle 9 is aligned with the top point of the claw 4 of the claw-shaped positioning rod 3, after that the guide needle 9 and the guide needle 10 with the 2.4mm are withdrawn from the guide sleeve 8 are removed from the guide sleeve body, and the guide needle 10 with the corresponding diameter is removed from the guide sleeve body 1.
Working principle: when the device is used, according to the general form of the tibia side dead center of the anterior cruciate ligament or the personal preference of an operator, a straight strip-shaped or C-shaped bone tunnel is firstly selected and established, then the angle is accurately positioned according to a claw-shaped positioning rod 3 in a positioning clamping jaw groove 2 on a guide body 1, the tibia side anterior cruciate ligament dead center is positioned by a double-ended claw 4 on the claw-shaped positioning rod 3, a guide sleeve 8 is jacked into the tibia near-end cortical bone and then locked by a sleeve screw 6, then a drill needle 9 and a guide needle 10 sequentially penetrate into a hole groove of a triangular position structure in the guide sleeve 8, and then the drill needle 9 and the guide needle 10 are correspondingly aligned with the double-ended claw 4 of the claw-shaped positioning rod 3 through the tibia guide sleeve 8, so that after the drill needle 9 and the guide needle 10 are confirmed to be in an ideal joint position, the guide sleeve 8 is pushed out of the guide body 1, and the working principle of the adjustable tibia side guide for preparing the bone tunnel is achieved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An adjustable tibial side guide for bone tunnel preparation, the tibial side guide comprising a guide body, a "claw" type positioning rod and a guide sleeve, comprising: the claw-shaped positioning rod is inserted and installed on the guide body, and the guide sleeve is nested and installed on the guide body;
further comprises:
the double-end claw is fixedly arranged at the front end of the claw-type positioning rod;
a sleeve screw threadedly mounted on bottom side surfaces of the guide body and the guide sleeve;
and the claw rod screw is arranged on the outer side surfaces of the guide body and the claw-type positioning rod in a threaded manner.
2. An adjustable tibial side guide for bone tunnel preparation according to claim 1, wherein: the guide body is also correspondingly provided with a positioning clamping jaw groove relative to the claw-shaped positioning rod, the radian of the positioning clamping jaw groove is equal to that of the claw-shaped positioning rod, and the claw-shaped positioning rod is of a bending structure.
3. An adjustable tibial side guide for bone tunnel preparation according to claim 1, wherein: the double-end claw and the claw-shaped positioning rod form an integrated structure, the claw head part of the double-end claw is a symmetrical needle-shaped claw tip, the claw-shaped positioning rod forms an embedded structure with the guider body through the positioning clamping jaw groove, and the rear side of the positioning clamping jaw groove is also provided with the sleeve clamping groove.
4. An adjustable tibial side guide for bone tunnel preparation according to claim 3, wherein: the sleeve clamping groove is of a U-shaped semi-surrounding groove body structure, the sleeve clamping groove and the guide sleeve form a clamping structure, and the drill needle and the guide needle are respectively inserted into the sleeve clamping groove.
5. An adjustable tibial side guide for bone tunnel preparation according to claim 4, wherein: the drill bit is symmetrically inserted and connected to two sides of the guide sleeve, and the drill needle and the guide needle form a triangular position structure on the guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221692460.1U CN218960845U (en) | 2022-06-24 | 2022-06-24 | Adjustable tibia side guide for bone tunnel preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221692460.1U CN218960845U (en) | 2022-06-24 | 2022-06-24 | Adjustable tibia side guide for bone tunnel preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218960845U true CN218960845U (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221692460.1U Active CN218960845U (en) | 2022-06-24 | 2022-06-24 | Adjustable tibia side guide for bone tunnel preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218960845U (en) |
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2022
- 2022-06-24 CN CN202221692460.1U patent/CN218960845U/en active Active
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