CN208958252U - A kind of astragalus drilling instrument - Google Patents
A kind of astragalus drilling instrument Download PDFInfo
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- CN208958252U CN208958252U CN201821267500.1U CN201821267500U CN208958252U CN 208958252 U CN208958252 U CN 208958252U CN 201821267500 U CN201821267500 U CN 201821267500U CN 208958252 U CN208958252 U CN 208958252U
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- guide pin
- astragalus
- drilling
- conduit
- drilling instrument
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Abstract
The utility model discloses a kind of astragalus drilling instrument, which includes guide pin and conduit, and the guide pin is inserted in conduit, and the conduit includes straight pipe and segmental arc, and the front end of the segmental arc is provided with sawtooth portion；The back side of segmental arc is provided with observation opening；The outside of the straight pipe is enclosed with handle；The guide pin can be bent, and guide pin has a first end and a second end, and be provided with label on guide pin between the first end and a second end；The first end is connect with electric drill, and electricity consumption drilling moves guide pin to drilling under astragalus；The second end is in trigone tip-type；By the label on the observation open view guide pin, to record guide pin position, and according to the depth of the marking of control drilling on guide pin.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of astragalus drilling instrument.
Background technique
Sprain of ankle joint is the highest injury gained in sports of disease incidence, and patient is sprained in part can merge astragalus cartilage damage and bone water
Swollen, the cartilage and subchondral bone of damage are difficult self-regeneration, and patient the symptoms such as swelling, pain occurs, seriously affects quality of life
And motion function, if traumatic arthritis even talus necrosis can also be progressed to not in time by performing the operation.
Currently, including cleaning under arthroscope, drilling, micro fractures and incision for the modus operandi of astragalus osteocartilaginous and subchondralo bone injury
Bone cartilage transplantation etc., drilling operation is to patient trauma's minimum, prognosis bona, by damaging lesion to astragalus depth drill with ferrule under arthroscope
It takes depth to reach the hole of 10mm or more, flows out the blood of depth side, to achieve the purpose that astragalus decompression and repair osteocartilaginous and subchondralo bone injury.But
Since the position 80% of astragalus osteocartilaginous and subchondralo bone injury is all located inside after astragalus, due to the covering and blocking of shin bone, current drilling
Equipment and technology cannot drill by anterior lateral cervical approach and to the osteochondrosis stove at astragalus rear.Therefore, it generally adopts at present
(Fig. 1) is drilled to 102 osteocartilaginous and subchondralo bone injury position 103 of astragalus with the mode for passing through internal malleolus.It is shown in FIG. 1 in the prior art
Bore mode needs to pass through internal malleolus using electric drill 100, and this mode increases the secondary damage to internal malleolus shin bone 101 and articular cartilage
Wound, increases the incidence of postoperative complications, and more demanding to the experience and feel of patient, often needs positioner special or repeatedly
Trial could succeed.Meanwhile patient apply the bore mode when can not learn the depth of drilling, to be difficult to reach accurate treatment
Purpose, affect drilling effect.In addition, the prior art can not if lesions position 104 is located on the inner surface of internal malleolus shin bone
It drills from intra-articular to the position.
Summary of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of astragalus drilling instrument, is cooperated by curved catheter
Minor diameter guide pin realizes the drilling under arthroscope to astragalus different directions, can improve local blood supply, enhances repairing effect；It avoids
The damage of tibial surface cartilage caused by being drilled by internal malleolus, can reduce the generation of complication, improve surgical effect.
To achieve the above object, astragalus drilling instrument described in the utility model includes guide pin and conduit, the guide pin
It is inserted in conduit, the conduit includes straight pipe and segmental arc, and the front end of the segmental arc is provided with sawtooth portion；Arc
The back side of section is provided with observation opening；The outside of the straight pipe is enclosed with handle；The guide pin can be bent, guide pin tool
There is first end and second end, is provided with label between the first end and a second end on guide pin；The first end is connect with electric drill,
Electricity consumption drilling moves guide pin to drilling under astragalus；The second end is in trigone tip-type；It is led by the observation open view
Label on needle, to record guide pin position, and according to the depth of the marking of control drilling on guide pin.
Preferably, the outer diameter of the conduit is 3mm, internal diameter 1.5mm.
The length of the conduit is 100mm.
The diameter of the guide pin is 1mm.
The length of the guide pin is 150mm.
The label is started setting up from from second end 4mm, and a label is arranged every 2mm.
The tail end of the handle is provided with conical opening close to the position of the end of the straight pipe of conduit, which is used for
The swing of guide pin in the catheter is reduced, guarantees the homogeneity of bore diameter.
The position apart from sawtooth portion 4mm to 8mm is arranged in the observation opening, and the length for observing opening is 4mm.
Between the central axis of plane and the central axis of straight pipe where the sawtooth portion of the segmental arc of the conduit
Angle is 14 degree or 16 degree.
Rubber sleeve is arranged in the segmental arc of the conduit and the binding site of straight pipe.
Compared with prior art, beneficial effect is astragalus drilling instrument described in the utility model:
(1) minor diameter guide pin is cooperated to realize the drilling under arthroscope to astragalus different directions, improvement office by curved catheter
Portion's blood supply enhances repairing effect；
(2) damage for avoiding tibial surface cartilage caused by drilling by internal malleolus mitigates the generation of complication, improves operation
Effect；
(3) drilling depth is held by the double design in the forward observation hole of instrument and rear label, realized to depth
It is precisely controlled, and easy to operate, avoids the shallow not sufficiently effective or too deep influence astragalus blood supply of drilling that drilled；
(4) keep drilling operation more stable the holding power of subchondral bone by the sawtooth design enhancing of distal end of catheter.
(5) auxiliary is conducive to by the cambered design of conduit and increases joint space, convenient for exposure lesion and drilling operation.
Detailed description of the invention
Fig. 1 is the schematic diagram of general drilling technique in the prior art；
Fig. 2 is the overall structure diagram of the astragalus drilling instrument of the utility model；
Fig. 3 is the structural schematic diagram of the guide pin of the utility model；
Position view when Fig. 4 is the astragalus drilling instrument drilling of the utility model；
Another location schematic diagram when Fig. 5 is the astragalus drilling instrument drilling of the utility model.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
As shown in Figures 2 to 5, astragalus drilling instrument described in the utility model includes guide pin 1 and conduit 2, and described leads
Needle is inserted in conduit, and the conduit includes straight pipe 9 and segmental arc 10, and the front end of the segmental arc is provided with sawtooth portion
8；The back side of segmental arc is provided with observation opening；The outside of the straight pipe is enclosed with handle 3；The guide pin can be curved
Song, guide pin have first end 6 and second end 7, are provided with label 5 between the first end and a second end on guide pin；Described first
End is connect with electric drill, and the dynamic guide pin of electricity consumption drilling is to drilling under astragalus；The second end is in trigone tip-type；Pass through the sight
The label on open view guide pin is examined, to record guide pin position, and according to the depth of the marking of control drilling on guide pin.
Preferably, the outer diameter of the conduit is 3mm, internal diameter 1.5mm.
The length of the conduit is 100mm.
The diameter of the guide pin is 1mm.
The length of the guide pin is 150mm.
The label is started setting up from from second end 4mm, and a label is arranged every 2mm.
The tail end of the handle is provided with conical opening close to the position of the end of the straight pipe of conduit, which is used for
The swing of guide pin in the catheter is reduced, guarantees the homogeneity of bore diameter.
The position apart from sawtooth portion 4mm to 8mm is arranged in the observation opening, and the length for observing opening is 4mm.
Between the central axis of plane and the central axis of straight pipe where the sawtooth portion of the segmental arc of the conduit
Angle is 14 degree or 16 degree.
Rubber sleeve 11 is arranged in the segmental arc of the conduit and the binding site of straight pipe.
The application method of astragalus drilling instrument described in the utility model is as follows:
It is detected using arthroscope 41, under ankle-joint traction, exposure simultaneously clears up cartilage lesion, exposure subchondral bone, will be away from
The conduit of bone drilling instrument is placed at cartilage damage by ankle arthroscopy anterior approach, adjusts bore angle, by guide pin from conduit
Tail end is placed in until astragalus surface.Guide pin position is recorded by supravasal observation panel.Guide pin tail end (first end) connects electric drill,
Electricity consumption drilling moves guide pin to drilling under astragalus, according to the observation on mouth the marking of control drilling of guide pin depth.
When cartilage lesion more rearward when, segmental arc front end sawtooth portion hold subchondral bone on the basis of, upper lift hand
Handle makes segmental arc that the shin bone of top to pusher, is increased the angle of drilling, guarantees that drilling can be deep into subchondral bone.Arc
Contact area of the rubber sleeve of the binding site of section and straight pipe due to increasing segmental arc and shin bone, increases pressure, and
Play the role of protection top tibial surface.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (10)
1. a kind of astragalus drilling instrument, which is characterized in that the astragalus drilling instrument includes guide pin and conduit, the guide pin
It is inserted in conduit, the conduit includes straight pipe and segmental arc, and the front end of the segmental arc is provided with sawtooth portion；Arc
The back side of section is provided with observation opening；The outside of the straight pipe is enclosed with handle；The guide pin can be bent, guide pin tool
There is first end and second end, is provided with label between the first end and a second end on guide pin；The first end is connect with electric drill,
Electricity consumption drilling moves guide pin to drilling under astragalus；The second end is in trigone tip-type；It is led by the observation open view
Label on needle, to record guide pin position, and according to the depth of the marking of control drilling on guide pin.
2. astragalus drilling instrument as described in claim 1, which is characterized in that the outer diameter of the conduit is 3mm, and internal diameter is
1.5mm。
3. astragalus drilling instrument as claimed in claim 2, which is characterized in that the length of the conduit is 100mm.
4. astragalus drilling instrument as described in claim 1, which is characterized in that the diameter of the guide pin is 1mm.
5. astragalus drilling instrument as claimed in claim 4, which is characterized in that the length of the guide pin is 150mm.
6. astragalus drilling instrument as described in claim 1, which is characterized in that the label is opened from from second end 4mm
Begin to be arranged, one label is set every 2mm.
7. astragalus drilling instrument as described in claim 1, which is characterized in that straight tube of the tail end of the handle close to conduit
The position of the end of section is provided with conical opening, which guarantees bore diameter for reducing the swing of guide pin in the catheter
Homogeneity.
8. astragalus drilling instrument as described in claim 1, which is characterized in that the observation opening is arranged apart from sawtooth portion
The position of 4mm to 8mm, the length for observing opening is 4mm.
9. astragalus drilling instrument as described in claim 1, which is characterized in where the sawtooth portion of the segmental arc of the conduit
Angle between the central axis of plane and the central axis of straight pipe is 14 degree or 16 degree.
10. astragalus drilling instrument as described in claim 1, which is characterized in that the segmental arc of the conduit and the knot of straight pipe
It closes position and rubber sleeve is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821267500.1U CN208958252U (en) | 2018-08-08 | 2018-08-08 | A kind of astragalus drilling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821267500.1U CN208958252U (en) | 2018-08-08 | 2018-08-08 | A kind of astragalus drilling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208958252U true CN208958252U (en) | 2019-06-11 |
Family
ID=66749853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821267500.1U Active CN208958252U (en) | 2018-08-08 | 2018-08-08 | A kind of astragalus drilling instrument |
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| CN (1) | CN208958252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108685603A (en) * | 2018-08-08 | 2018-10-23 | 北京大学第三医院 | A kind of astragalus drilling instrument |
-
2018
- 2018-08-08 CN CN201821267500.1U patent/CN208958252U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108685603A (en) * | 2018-08-08 | 2018-10-23 | 北京大学第三医院 | A kind of astragalus drilling instrument |
| CN108685603B (en) * | 2018-08-08 | 2024-04-26 | 北京大学第三医院 | Talus drilling instrument |
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