CN203988370U - Tibial insertion of posterior cruciate ligament is peeled off location wire-threading device - Google Patents
Tibial insertion of posterior cruciate ligament is peeled off location wire-threading device Download PDFInfo
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- CN203988370U CN203988370U CN201420351748.1U CN201420351748U CN203988370U CN 203988370 U CN203988370 U CN 203988370U CN 201420351748 U CN201420351748 U CN 201420351748U CN 203988370 U CN203988370 U CN 203988370U
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- inserted link
- pilot hole
- position fixing
- fixing handle
- far
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Abstract
This utility model provides a kind of tibial insertion of posterior cruciate ligament to peel off location wire-threading device, comprising: peel off registration arm 1, position fixing handle 2, guiding trestle 3; Peel off between the near-end of registration arm 1 and the far-end of position fixing handle 2 and removably connect; Between position fixing handle 2 and guiding trestle 3, removably connect; Peel off between the far-end of registration arm 1 and near-end and be provided with line guide duct 11; Between the far-end of position fixing handle 2 and near-end, be provided with line pilot hole 21; The near-end of crossing line guide duct 11 butted up against the far-end of line pilot hole 21.This utility model can retain and peel off registration arm in original position after having peeled off, and after changing handle, can be installed on guiding trestle, thereby directly carries out follow-up steel wire guiding operation, has avoided peeling off the operation that registration arm repeats to send into.
Description
Technical field
This utility model relates to medical instruments field, particularly, relates to tibial insertion of posterior cruciate ligament and peels off location wire-threading device.
Background technology
After posterior cruciate ligament damage, usually there is ligament stub fiber, for the ease of passing through etc. of the implantation of localizer, ligament, posterior cruciate ligament tibia stump suitably need to be peeled off, thereby the detacher of posterior cruciate ligament special use is extremely important.The tibial insertion of posterior cruciate ligament localizer using at present comprises cranks arm, and the top of cranking arm is plugged with position fixing handle, and the bottom of cranking arm can connect guide pin locator, wherein can pass Kirschner wire, or special-purpose guide pin.Because pin end is sharp, guide pin and position fixing handle foremost between the dislocation of easily skidding, have the risk of wearing out rear joint capsule, damage knee joint rear nervus vasculairs.After preset guide pin, need to expand tibial tunnel with hollow boring bit, yet the degree of depth that hollow boring bit enters is usually difficult to control, there is the risk that damage knee joint rear nervus vasculairs occur.For fear of hollow boring bit, inserted dark; after usually needing to take out localizer, again insert proximal ends of tibia rearward protect device; but be difficult to protector to be accurately fixed on guide pin tip in location; in order to observe guide pin tip; usually need again to add and do auxiliary rear medial approach, thereby increased the wound of performing the operation.After drilling through tibial tunnel, in order to introduce the graft intersecting after rebuilding, conventionally need in tibial tunnel, penetrate U-shaped steel wire, and by the annular section of steel wire intraarticular by after guide the place ahead into.But because posterior cruciate ligament stub fiber has usually hindered the guiding of steel wire.
Thereby at present posterior cruciate ligament tibial tunnel exists detacher, localizer, protector to insert successively in making, blind area, tibia rear location difficulty, guide wire is through the problem such as having some setbacks.Whole process had both lacked the effectively protection to knee joint rear nervus vasculairs, and the step lacking again is easily and effectively connected, operation inconvenience, and can not effectively reduce risk.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of tibial insertion of posterior cruciate ligament and peels off location wire-threading device.
A kind of tibial insertion of posterior cruciate ligament providing according to this utility model is peeled off location wire-threading device, comprising: peel off registration arm 1, position fixing handle 2, guiding trestle 3;
Peel off between the near-end of registration arm 1 and the far-end of position fixing handle 2 and removably connect;
Between position fixing handle 2 and guiding trestle 3, removably connect;
Peel off between the far-end of registration arm 1 and near-end and be provided with line guide duct 11;
Between the far-end of position fixing handle 2 and near-end, be provided with line pilot hole 21;
The near-end of crossing line guide duct 11 butted up against the far-end of line pilot hole 21.
Preferably, the near-end of peeling off registration arm 1 is provided with external screw thread 12, and the far-end of position fixing handle 2 is provided with thread groove 22, and external screw thread 12 is in mating connection with thread groove 22;
Cross line pilot hole 21 and from the bottom land of thread groove 22, extend to the near-end of position fixing handle 2.
Preferably, the side of position fixing handle 2 is provided with inserted link groove 23, and the stepped cell wall of inserted link groove 23 forms concave station 24;
Cross line pilot hole 21 and comprise leading portion pilot hole 2101, back segment pilot hole 2102; Leading portion pilot hole 2101, back segment pilot hole 2102 lay respectively at front side, the rear side of inserted link groove 23;
The near-end of leading portion pilot hole 2101 is communicated in inserted link groove 23, and back segment pilot hole 2102 is by extending to the near-end of position fixing handle 2 in inserted link groove 23;
31 the free end of cranking arm of guiding trestle 3 extends the inserted link 32 that matches with inserted link groove 23 and install, and inserted link 32 forms convex shoulder 34 with 31 the junction of cranking arm, and convex shoulder 34 matches with concave station 24;
In inserted link 32, be provided with interface channel 35, when inserted link 32 is installed on inserted link groove 23 when interior, the far-end of interface channel 35 butts up against the near-end of leading portion pilot hole 2101, and the near-end of interface channel 35 butts up against the far-end of back segment pilot hole 2102.
Preferably, the side of position fixing handle 2 is provided with inserted link groove 23, and the stepped cell wall of inserted link groove 23 forms concave station 24;
Cross line pilot hole 21 and comprise leading portion pilot hole 2101, back segment pilot hole 2102; Leading portion pilot hole 2101, back segment pilot hole 2102 lay respectively at front side, the rear side of inserted link groove 23;
Leading portion pilot hole 2101 is extended in inserted link groove 23 by the bottom land of thread groove 22, and back segment pilot hole 2102 is by extending to the near-end of position fixing handle 2 in inserted link groove 23;
31 the free end of cranking arm of guiding trestle 3 extends the inserted link 32 that matches with inserted link groove 23 and install, and inserted link 32 forms convex shoulder 34 with 31 the junction of cranking arm, and convex shoulder 34 matches with concave station 24;
In inserted link 32, be provided with interface channel 35, when inserted link 32 is installed on inserted link groove 23 when interior, the far-end of interface channel 35 butts up against the near-end of leading portion pilot hole 2101, and the near-end of interface channel 35 butts up against the far-end of back segment pilot hole 2102.
Preferably, leading portion pilot hole 2101, interface channel 35, back segment pilot hole 2102 coaxially arrange.
Preferably, between inserted link groove 23 and inserted link 32, interference fit is connected.
Preferably, between inserted link groove 23 and inserted link 32, by locking nut 25 lockings, be connected.
Preferably, position fixing handle 2 is provided with to crank arm installs through hole 26 and locking nut 25, and cranking arm of guiding trestle 3 31 cranked arm described in being inserted in and installed in through hole 26;
When locking nut is during in unlocked state, cranking arm 31 can be free to slide cranking arm to install in through hole 26;
When locking nut is in the lock state, cranks arm and 31 be locked nut locking and relative fixing of relative position between through hole 26 is installed with cranking arm.
Preferably, the surface of the proximal part of guiding trestle 3 is provided with graduation mark 6.
Compared with prior art, the utlity model has following beneficial effect:
This utility model can be after having peeled off; retain and peel off registration arm in original position; after changing handle, can be installed on guiding trestle; thereby directly carry out the making of follow-up tibial tunnel; can effectively stop tibia guide pin, expand the hollow boring bit in tunnel, thereby conscientiously protect the nervus vasculairs at knee joint rear.And then by the hollow devices of location detacher, easily steel wire is introduced from tibia the place ahead, through tibial plateau rear, in articular cavity, be drawn out to knee joint the place ahead.Avoid peeling off the operation that registration arm repeats to send into, effectively protected the nervus vasculairs at tibia rear, introduced easily tibial tunnel guide wire.
Accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 peels off registration arm and the annexation schematic diagram of peeling off handle;
Fig. 2 is overall structure schematic diagram of the present utility model;
Fig. 3 is assembling principle schematic of the present utility model;
Fig. 4 is the detailed structure schematic diagram of position fixing handle;
Fig. 5 is the detailed structure schematic diagram of peeling off registration arm far-end;
Fig. 6 is the overall structure schematic diagram of this utility model preference;
Fig. 7 is the assembling principle schematic of this utility model preference;
Fig. 8 is the detailed structure schematic diagram of peeling off registration arm far-end of preference;
Fig. 9 is the structural representation of coupling groove face of the registration arm of preference.
In figure:
1 for peeling off registration arm; 3 is guiding trestle;
11 was that line guide duct 31 is for cranking arm;
12 is that external screw thread 32 is inserted link;
13 is that gathering sill 34 is convex shoulder;
14 is that the coupling groove face 35 of registration arm is interface channel;
15 was that the mouth of pipe 4 of line guide duct is for peeling off hands handle;
2 for position fixing handle 5 is for leading brill;
21 was that line pilot hole 6 is graduation mark;
2101 is that leading portion pilot hole 7 is steel-wire inducer in osseous tunnel;
2102 is that back segment pilot hole 71 is the coupling groove face of steel-wire inducer.
22 is thread groove;
23 is inserted link groove
24 is concave station;
25 is locking nut;
26 is the installation through hole of cranking arm;
The specific embodiment
Below in conjunction with specific embodiment, this utility model is elaborated.Following examples will contribute to those skilled in the art further to understand this utility model, but not limit in any form this utility model.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, can also make some distortion and improvement.These all belong to protection domain of the present utility model.
As shown in Figure 2, the tibial insertion of posterior cruciate ligament providing according to this utility model is peeled off location wire-threading device, comprising: peel off registration arm 1, position fixing handle 2, guiding trestle 3; Peel off between the near-end of registration arm 1 and the far-end of position fixing handle 2 and removably connect; Between position fixing handle 2 and guiding trestle 3, removably connect; Peel off between the far-end of registration arm 1 and near-end and be provided with line guide duct 11; Between the far-end of position fixing handle 2 and near-end, be provided with line pilot hole 21; The near-end of crossing line guide duct 11 butted up against the far-end of line pilot hole 21.
Wherein, peel off the relation that removably connects between registration arm 1 and position fixing handle 2 and between position fixing handle 2 and guiding trestle 3, can realize by various ways such as plug receptacle, screw thread, interference fit.Below to being preferred embodiment described.
Preferably, the near-end of peeling off registration arm 1 is provided with external screw thread 12, and the far-end of position fixing handle 2 is provided with thread groove 22, and external screw thread 12 is in mating connection with thread groove 22; Cross line pilot hole 21 and from the bottom land of thread groove 22, extend to the near-end of position fixing handle 2.The side of position fixing handle 2 is provided with inserted link groove 23, and the stepped cell wall of inserted link groove 23 forms concave station 24; Cross line pilot hole 21 and comprise leading portion pilot hole 2101, back segment pilot hole 2102; Leading portion pilot hole 2101, back segment pilot hole 2102 lay respectively at front side, the rear side of inserted link groove 23; Leading portion pilot hole 2101 is extended in inserted link groove 23 by the bottom land of thread groove 22, and back segment pilot hole 2102 is by extending to the near-end of position fixing handle 2 in inserted link groove 23.
Further, 31 the free end of cranking arm of guiding trestle 3 extends the inserted link 32 that matches with inserted link groove 23 and install, and inserted link 32 forms convex shoulder 34 with 31 the junction of cranking arm, and convex shoulder 34 matches with concave station 24; In inserted link 32, be provided with interface channel 35, when inserted link 32 is installed on inserted link groove 23 when interior, the far-end of interface channel 35 butts up against the near-end of leading portion pilot hole 2101, and the near-end of interface channel 35 butts up against the far-end of back segment pilot hole 2102.
Still more preferably, leading portion pilot hole 2101, interface channel 35, back segment pilot hole 2102 coaxially arrange.Between inserted link groove 23 and inserted link 32, interference fit is connected.Between inserted link groove 23 and inserted link 32, by locking nut 25 lockings, be connected.
Fig. 6 to Fig. 9 shows preference of the present utility model, specific as follows:
As shown in Figure 6, tibial insertion of posterior cruciate ligament is peeled off location wire-threading device, comprising: peel off registration arm 1, position fixing handle 2, guiding trestle 3; Peel off between the near-end of registration arm 1 and the far-end of position fixing handle 2 and removably connect; Between position fixing handle 2 and guiding trestle 3, removably connect; Peel off between the far-end of registration arm 1 and near-end and be provided with line guide duct 11.The near-end of peeling off registration arm 1 is provided with external screw thread 12, and the far-end of position fixing handle 2 is provided with thread groove 22, and external screw thread 12 is in mating connection with thread groove 22.
As shown in Figure 7, position fixing handle 2 is provided with to crank arm installs through hole 26 and locking nut 25, and cranking arm of guiding trestle 3 31 cranked arm described in being inserted in and installed in through hole 26; When locking nut is during in unlocked state, cranking arm 31 can be free to slide cranking arm to install in through hole 26; When locking nut is in the lock state, cranks arm and 31 be locked nut locking and relative fixing of relative position between through hole 26 is installed with cranking arm.The surface of the proximal part of guiding trestle 3 is provided with graduation mark 6, and this graduation mark 6 is for representing the far-end of guiding trestle 3 and peeling off the spacing d between the end of registration arm 1.
As shown in Figure 8, Figure 9, show steel-wire inducer 7 in the coupling groove face 14 of registration arm, the mouth of pipe 15 of crossing line guide duct, osseous tunnel; The coupling groove face 14 of registration arm mates mutually with the groove face 71 that mates of the steel-wire inducer of steel-wire inducer 7 in osseous tunnel, thereby can be convenient to peel off the accurate location between registration arm 1 and guiding trestle 3, both rigidly connect while touching slightly deviation more in time, and coupling groove face 14 that also can be by registration arm and the matching effect that mates groove face 71 of steel-wire inducer reach the object of accurate location.
Use principle of the present utility model is as follows:
Step 1: will peel off registration arm 1 and peel off handle 4 and install, as shown in Figure 1;
Step 2: doctor holds and peels off handle 4, will peel off after registration arm 1 is sent into and carry out strip operation;
Step 3: after strip operation completes, pull down and peel off handle 4;
Step 4: position fixing handle 2 is installed on and peels off registration arm 1;
Step 5: guiding trestle 3 is mounted to position fixing handle 2;
Step 6: the associative operation that carries out steel wire guiding.
Step 7: pull down position fixing handle 2 and guiding trestle 3;
Step 8: steel wire is passed from peeling off the near-end of registration arm 1.
Wherein, step 7, step 8 are preferred step.
Above specific embodiment of the utility model is described.It will be appreciated that, this utility model is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (9)
1. tibial insertion of posterior cruciate ligament is peeled off a location wire-threading device, it is characterized in that, comprising: peel off registration arm (1), position fixing handle (2), guiding trestle (3);
Peel off between the near-end of registration arm (1) and the far-end of position fixing handle (2) and removably connect;
Between position fixing handle (2) and guiding trestle (3), removably connect;
Peel off between the far-end of registration arm (1) and near-end and be provided with line guide duct (11).
2. tibial insertion of posterior cruciate ligament according to claim 1 is peeled off location wire-threading device, it is characterized in that, the near-end of peeling off registration arm (1) is provided with external screw thread (12), the far-end of position fixing handle (2) is provided with thread groove (22), and external screw thread (12) is in mating connection with thread groove (22).
3. tibial insertion of posterior cruciate ligament according to claim 1 is peeled off location wire-threading device, it is characterized in that,
Between the far-end of position fixing handle (2) and near-end, be provided with line pilot hole (21);
The near-end of crossing line guide duct (11) butted up against the far-end of line pilot hole (21);
Cross line pilot hole (21) and from the bottom land of thread groove (22), extend to the near-end of position fixing handle (2);
The side of position fixing handle (2) is provided with inserted link groove (23), and the stepped cell wall of inserted link groove (23) forms concave station (24);
Cross line pilot hole (21) and comprise leading portion pilot hole (2101), back segment pilot hole (2102); Leading portion pilot hole (2101), back segment pilot hole (2102) lay respectively at front side, the rear side of inserted link groove (23);
The near-end of leading portion pilot hole (2101) is communicated in inserted link groove (23), and back segment pilot hole (2102) is by extending to the near-end of position fixing handle (2) in inserted link groove (23);
The free end of crank arm (31) of guiding trestle (3) extends the inserted link (32) that matches with inserted link groove (23) and install, inserted link (32) forms convex shoulder (34) with the junction of crank arm (31), and convex shoulder (34) matches with concave station (24);
In inserted link (32), be provided with interface channel (35), in the time of in inserted link (32) is installed on inserted link groove (23), the far-end of interface channel (35) butts up against the near-end of leading portion pilot hole (2101), and the near-end of interface channel (35) butts up against the far-end of back segment pilot hole (2102).
4. tibial insertion of posterior cruciate ligament according to claim 2 is peeled off location wire-threading device, it is characterized in that, the side of position fixing handle (2) is provided with inserted link groove (23), and the stepped cell wall of inserted link groove (23) forms concave station (24);
Cross line pilot hole (21) and comprise leading portion pilot hole (2101), back segment pilot hole (2102); Leading portion pilot hole (2101), back segment pilot hole (2102) lay respectively at front side, the rear side of inserted link groove (23);
Leading portion pilot hole (2101) is extended in inserted link groove (23) by the bottom land of thread groove (22), and back segment pilot hole (2102) is by extending to the near-end of position fixing handle (2) in inserted link groove (23);
The free end of crank arm (31) of guiding trestle (3) extends the inserted link (32) that matches with inserted link groove (23) and install, inserted link (32) forms convex shoulder (34) with the junction of crank arm (31), and convex shoulder (34) matches with concave station (24);
In inserted link (32), be provided with interface channel (35), in the time of in inserted link (32) is installed on inserted link groove (23), the far-end of interface channel (35) butts up against the near-end of leading portion pilot hole (2101), and the near-end of interface channel (35) butts up against the far-end of back segment pilot hole (2102).
5. according to the tibial insertion of posterior cruciate ligament described in claim 3 or 4, peel off location wire-threading device, it is characterized in that, leading portion pilot hole (2101), interface channel (35), back segment pilot hole (2102) coaxially arrange.
6. according to the tibial insertion of posterior cruciate ligament described in claim 3 or 4, peel off location wire-threading device, it is characterized in that, between inserted link groove (23) and inserted link (32), interference fit is connected.
7. according to the tibial insertion of posterior cruciate ligament described in claim 3 or 4, peel off location wire-threading device, it is characterized in that, between inserted link groove (23) and inserted link (32), by locking nut (25) locking, be connected.
8. tibial insertion of posterior cruciate ligament according to claim 1 is peeled off location wire-threading device, it is characterized in that, position fixing handle (2) is provided with to crank arm installs through hole (26) and locking nut (25), cranks arm and install in through hole (26) described in crank arm (31) of guiding trestle (3) are inserted in;
When locking nut is during in unlocked state, crank arm (31) can be free to slide cranking arm to install in through hole (26);
When locking nut is in the lock state, crank arm (31) install be locked nut locking and relative fixing of relative position between through hole (26) with cranking arm.
9. tibial insertion of posterior cruciate ligament according to claim 1 is peeled off location wire-threading device, it is characterized in that, the surface of the proximal part of guiding trestle (3) is provided with graduation mark (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351748.1U CN203988370U (en) | 2014-06-26 | 2014-06-26 | Tibial insertion of posterior cruciate ligament is peeled off location wire-threading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351748.1U CN203988370U (en) | 2014-06-26 | 2014-06-26 | Tibial insertion of posterior cruciate ligament is peeled off location wire-threading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203988370U true CN203988370U (en) | 2014-12-10 |
Family
ID=52028458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420351748.1U Withdrawn - After Issue CN203988370U (en) | 2014-06-26 | 2014-06-26 | Tibial insertion of posterior cruciate ligament is peeled off location wire-threading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203988370U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055578A (en) * | 2014-06-26 | 2014-09-24 | 复旦大学附属华山医院 | Posterior cruciate ligament tibial insertion stripping-positioning line threading device |
| CN105395223A (en) * | 2015-12-30 | 2016-03-16 | 山东威高骨科材料股份有限公司 | Tibia guider for conducting eccentric positioning |
| CN108065993A (en) * | 2017-12-06 | 2018-05-25 | 四川大学华西医院 | Shin bone locator for rebuilding posterior cruciate ligament on adjustable dissection line of force axis extended line |
-
2014
- 2014-06-26 CN CN201420351748.1U patent/CN203988370U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055578A (en) * | 2014-06-26 | 2014-09-24 | 复旦大学附属华山医院 | Posterior cruciate ligament tibial insertion stripping-positioning line threading device |
| CN104055578B (en) * | 2014-06-26 | 2016-06-22 | 复旦大学附属华山医院 | Tibial insertion of posterior cruciate ligament peels off location wire-threading device |
| CN105395223A (en) * | 2015-12-30 | 2016-03-16 | 山东威高骨科材料股份有限公司 | Tibia guider for conducting eccentric positioning |
| CN108065993A (en) * | 2017-12-06 | 2018-05-25 | 四川大学华西医院 | Shin bone locator for rebuilding posterior cruciate ligament on adjustable dissection line of force axis extended line |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160622 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160622 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |