CN202682012U - Tibia stop positioner for posterior cruciate ligament - Google Patents
Tibia stop positioner for posterior cruciate ligament Download PDFInfo
- Publication number
- CN202682012U CN202682012U CN 201220304814 CN201220304814U CN202682012U CN 202682012 U CN202682012 U CN 202682012U CN 201220304814 CN201220304814 CN 201220304814 CN 201220304814 U CN201220304814 U CN 201220304814U CN 202682012 U CN202682012 U CN 202682012U
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- CN
- China
- Prior art keywords
- position fixing
- lateral mass
- fixing handle
- cruciate ligament
- crank arm
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A tibia stop positioner for posterior cruciate ligament is good in use effect and comprises a crank arm, a thick-ended drill and a steel wire guide rod, wherein a positioning handle hole is formed at the upper part of the crank arm; a positioning handle is connected into the positioning handle hole in a penetrating way; the crank arm is fixedly connected with the positioning handle by a lock nut; a guide drill lateral mass is connected with the lower part of the crank arm; a dovetail groove concave side is formed on the two side faces of the lower end of the crank arm; a dovetail groove convex side is formed on the side face of one end of the guide drill lateral mass; the dovetail groove convex side is matched with the dovetail groove concave side; the guide drill lateral mass is fixedly connected with the crank arm by a lock nut; a guide hole is formed at the other end of the guide drill lateral mass; a guide sleeve is mounted in the guide hole; the guide sleeve is fixedly connected with the guide drill lateral mass by a lock nut; and a pointed-end drill is mounted in the guide sleeve and corresponds to the lower part of the positioning handle.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of tibial insertion of posterior cruciate ligament localizer.
Background technology
The tibial insertion of posterior cruciate ligament localizer that uses at present comprises cranks arm, the top of cranking arm is plugged with position fixing handle, the bottom of cranking arm is installed with steinman pin, because the pin end is sharp, the dislocation of skidding easily between steinman pin and the position fixing handle, then steel wire penetrates posterior cruciate ligament bone stop place by position fixing handle, require to remove the ligament stump in the operating process that this structure is cranked arm, the clear visual field, direct-view is lower derives guiding steel wire with apparatus from the tibia trailing edge, during operating cost, relative damage is larger, and this operation is difficult to control the degree of depth that drill bit pierces, there is drill bit excessively deeply to injure the potential danger of rear nervus vasculairs, can not guarantees the handling safety of tibia dorsal condyle section; The localizer anchor point is often higher, is positioned at normal stop front upper place; Operating process relies on operator to keep the position fully in the art, and easily mobile, result of use is poor.
The purpose of this utility model provides the good tibial insertion of posterior cruciate ligament localizer of a kind of result of use.
For achieving the above object, the technical solution adopted in the utility model is: a kind of tibial insertion of posterior cruciate ligament localizer, comprise and cranking arm, thick head bores and the steel wire guide rod, the upper design of cranking arm has the position fixing handle hole, cross-under has position fixing handle in the position fixing handle hole, crank arm and be fixedly connected with by locking nut with position fixing handle, it is characterized in that: described bottom of cranking arm is connected with leads the brill lateral mass, the two sides of the lower end of cranking arm are designed with dovetail geosynclinal concave side, lead an end side surface of boring lateral mass and be designed with dovetail geosynclinal convex side, dovetail geosynclinal convex side matches with dovetail geosynclinal concave side, leads to be fixedly connected with by locking nut between boring lateral mass and cranking arm, and the other end of leading the brill lateral mass has guide hole, fairlead is installed in the guide hole, fairlead is fixedly connected with by locking nut with leading the brill lateral mass, and tipped drill is housed in the fairlead, and tipped drill is corresponding with the bottom of position fixing handle.
In this structure, crank arm with the plane at position fixing handle place with advance to bore direction and become 15 °～20 at horizontal position.Angle.
In this structure, steinman pin is inserted with steinman pin in the hole.
In this structure, the lower end of position fixing handle is designed with the wide sword of arc.
In this structure, be designed with lightening hole on cranking arm.
The utility model has the advantages of and be: because this structure of the present utility model, keep ligament stump Cruciate ligament reconstruction art under the knee arthroscope, adopt front interior, the front outer approach of knee joint, need not to remove tibial insertion of posterior cruciate ligament ligament stump on every side, the synovial membrane sheath that keeps ligament stump periphery is fully set up the tibial bone road, be beneficial to the healing of transplanting tendon, when keeping the ligamentaum cruciatum stump, not only accurately the location, handling safety, and obviously simplify operative process, greatly shorten operating time, result of use is good.
Description of drawings
Fig. 1 is the structural representation that this utility model removes thick head brill and steel wire guide rod;
Fig. 2 is the structural representation that thick head bores in this utility model;
Fig. 3 is the structural representation of steel wire guide rod in this utility model.
In the accompanying drawing: 1, position fixing handle hole; 2, position fixing handle; 3, the wide sword of arc; 4, steinman pin; 5, tipped drill; 6, locking nut; 7, fairlead; 8, guide hole; 9, lead the brill lateral mass; 10, dovetail geosynclinal convex side; 11, dovetail geosynclinal concave side; 12, steinman pin hole; 13, lightening hole; 14, crank arm; 15, thick head bores; 16, steel wire guide rod.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments: this utility model such as Fig. 1,2, shown in 3, a kind of tibial insertion of posterior cruciate ligament localizer, comprise and crank arm 14, thick head brill 15 and steel wire guide rod 16,14 upper design of cranking arm have position fixing handle hole 1, the 1 interior cross-under of position fixing handle hole has position fixing handle 2, crank arm and 14 be fixedly connected with by locking nut with position fixing handle 2, it is characterized in that: described 14 the bottom of cranking arm is connected with to lead bores lateral mass 9, the crank arm two sides of 14 lower end are designed with dovetail geosynclinal concave side 11, lead an end side surface of boring lateral mass 9 and be designed with dovetail geosynclinal convex side 10, dovetail geosynclinal convex side 10 matches with dovetail geosynclinal concave side 11, lead and bore lateral mass 9 and be fixedly connected with by locking nut between 14 with cranking arm, lead the other end of boring lateral mass 9 and have guide hole 8, fairlead 7 is installed in the guide hole 8, fairlead 7 is fixedly connected with by locking nut 6 with leading brill lateral mass 9, and tipped drill 5 is housed in the fairlead 7, and tipped drill 5 is corresponding with the bottom of position fixing handle 2.Position fixing handle slightly lengthens, and the positioning end camber is circular arc, and elbow changes the wide sword of 10mm arc into, and the wide sword of arc is the depth stop baffle plate, and there is wide 6mm steel wire passage guide groove the centre; In the present embodiment, crank arm with the plane at position fixing handle place with advance to bore direction and become 15 °～20 ° angles at horizontal position.So that it is vertical as far as possible with surface of bone to advance to bore direction, be difficult for producing slippage; The tibial bone road is shortened relatively, thereby make length when four strands of Hamses of body are transplanted as tendon, it is unlikely too short that the length of common four strands of Hamses is about 90～130mm; Tibial bone road collar extension is concordant, and unlikely one side of something exposed too much when extruding was followed closely fixedly; When forward and backward ligamentaum cruciatum is rebuild simultaneously, make two bone track pitches from unlikely too close to, when being screwed into extrusion screw, easy damaged two bone road Lin Bi have not avoided subsiding of bone road; Lead and bore a relatively side of lateral mass, make things convenient for the assistant to operate; Position fixing handle slightly lengthens, and can guarantee that tibial bone road internal orifice is positioned at posterior cruciate ligament tibia footprint district, accurate positioning; The depth stop baffle plate of position fixing handle end is more roomy can effectively protect rear nervus vasculairs, handling safety; Having increased stabilising arrangement, that localizer is placed is more stable, makes the smooth tibial plateau trailing edge of depth stop baffle plate, easy glide not, and firmly hand-held without the patient, reduce anthropic factor, be beneficial to operation; Position fixing handle and steel wire guide rod are the hollow steel wire guide groove, both form the steel wire passage of annular, and steel wire thus passage directly passes outside the knee joint through the tibial bone road, and does not need to remove the posterior cruciate ligament stump, avoid unnecessary damage, effectively shortened operating time; Tibial insertion of posterior cruciate ligament localizer apparatus can be general with the anterior cruciate ligament apparatus, reduced number of instruments, makes things convenient in the art to operate.In the present embodiment, be inserted with steinman pin 4 in the steinman pin hole 12.Steinman pin 4 can play stable fixing effect.In the present embodiment, the lower end of position fixing handle 2 is designed with the wide sword 3 of arc.In the present embodiment, cranking arm is designed with lightening hole 13 on 14, and lightening hole can weight reduction, saves material.
Use this utility model, the as far as possible stump of few original ligament of interference and blood fortune during arthrocsopic surgery are to keep more blood vessel and nerve, in order to the healing of transplanting tendon.
The posterior cruciate ligament damage is increasing, its method for reconstructing is updated, wherein the damage of fresh ligamentaum cruciatum adopt keep the ligament stumps from the body tendon grafting, obtaining good reconstruction effect, be to obtain good key of rebuilding effect and transplant the problems such as the healing of tendon and revascularization after rebuilding.In order to reach this purpose, the as far as possible stump of few original ligament of interference and blood fortune during arthrocsopic surgery are to keep more blood vessel and nerve, in order to the healing of transplanting tendon.
The patient hands position fixing handle, by inboard mouthful of insertion before the knee joint, place the tibial insertion of posterior cruciate ligament place, left according to suffering from limb, right installation is led and is bored lateral mass on cranking arm, left side trouble limb will be led the brill lateral mass and will be installed in the left side of cranking arm, right side trouble limb will be led the brill lateral mass and will be installed in the right side of cranking arm, connect position fixing handle in the position fixing handle hole on the top of cranking arm, then squeeze into steinman pin by the steinman pin hole, to stablize the tibial insertion of posterior cruciate ligament localizer, according to the thickness of transplanting tendon, choose fairlead, and be fixed in the guide hole, get tibial tunnel through fairlead with tipped drill, bore again with thick head again tibial tunnel is exported expansion and polishes whole, then take off thick head and bore, penetrate the steel wire guide rod through fairlead, steel wire guide rod front end can touch the wide sword of arc of position fixing handle, penetrate bifilar steel wire by the steel wire guide rod, outside position fixing handle is piercing in knee joint, and need not to clear up the posterior cruciate ligament stump, under arthroscope, steel wire is made up tong out by articular cavity, keep steel wire, remove the tibial insertion of posterior cruciate ligament localizer.
The preparation of femur bone road and bifilar draught line method for posting:
1, conventional posterior cruciate ligament femur stop localizer prepares femur bone road.
Lateral approach will penetrate between bifilar steel wire in articular cavity with the Kirschner wire of bifilar No. 5 draught lines before knee joint, is passed outside the skin by femur bone road.
2, by the bifilar steel wire of tibial bone road collar extension tractive, bifilar No. 5 draught lines are pulled out the tibial bone road.
3, bifilar No. 5 draught lines are purchased complete in the femur bone road, articular cavity and the tibial bone road.
4, transplant the tendon implantation process with conventional.
Claims (5)
1. tibial insertion of posterior cruciate ligament localizer, comprise crank arm (14), thick head bores (15) and steel wire guide rod (16), (14) upper design of cranking arm has position fixing handle hole (1), the interior cross-under in position fixing handle hole (1) has position fixing handle (2), crank arm (14) be fixedly connected with by locking nut with position fixing handle (2), it is characterized in that: the bottom of described cranking arm (14) is connected with to lead bores lateral mass (9), the crank arm two sides of lower end of (14) are designed with dovetail geosynclinal concave side (11), lead an end side surface of boring lateral mass (9) and be designed with dovetail geosynclinal convex side (10), dovetail geosynclinal convex side (10) matches with dovetail geosynclinal concave side (11), lead and bore lateral mass (9) and be fixedly connected with by locking nut between (14) with cranking arm, lead the other end of boring lateral mass (9) and have guide hole (8), fairlead (7) is installed in the guide hole (8), fairlead (7) bores lateral mass (9) and is fixedly connected with by locking nut (6) with leading, tipped drill (5) is housed in the fairlead (7), and tipped drill (5) is corresponding with the bottom of position fixing handle (2).
2. tibial insertion of posterior cruciate ligament localizer according to claim 1 is characterized in that: described crank arm with the plane at position fixing handle place with advance to bore direction and become 15 °～20 ° angles at horizontal position.
3. tibial insertion of posterior cruciate ligament localizer according to claim 2 is characterized in that: be inserted with steinman pin (4) in the described steinman pin hole (12).
4. tibial insertion of posterior cruciate ligament localizer according to claim 3, it is characterized in that: the lower end of described position fixing handle (2) is designed with the wide sword of arc (3).
5. tibial insertion of posterior cruciate ligament localizer according to claim 4 is characterized in that: be designed with lightening hole (13) on described the cranking arm (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304814 CN202682012U (en) | 2012-06-20 | 2012-06-20 | Tibia stop positioner for posterior cruciate ligament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304814 CN202682012U (en) | 2012-06-20 | 2012-06-20 | Tibia stop positioner for posterior cruciate ligament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202682012U true CN202682012U (en) | 2013-01-23 |
Family
ID=47537698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220304814 Expired - Lifetime CN202682012U (en) | 2012-06-20 | 2012-06-20 | Tibia stop positioner for posterior cruciate ligament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202682012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102697533A (en) * | 2012-06-20 | 2012-10-03 | 王建华 | Posterior cruciate ligament tibial insertion positioner |
-
2012
- 2012-06-20 CN CN 201220304814 patent/CN202682012U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102697533A (en) * | 2012-06-20 | 2012-10-03 | 王建华 | Posterior cruciate ligament tibial insertion positioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20140730 |
|
| RGAV | Abandon patent right to avoid regrant |