CN209172409U - The blind lock in distal end for orthopaedics intramedullary nail bores - Google Patents
The blind lock in distal end for orthopaedics intramedullary nail bores Download PDFInfo
- Publication number
- CN209172409U CN209172409U CN201721810350.XU CN201721810350U CN209172409U CN 209172409 U CN209172409 U CN 209172409U CN 201721810350 U CN201721810350 U CN 201721810350U CN 209172409 U CN209172409 U CN 209172409U
- Authority
- CN
- China
- Prior art keywords
- positioning
- drill body
- drill
- blind lock
- distal blind
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 38
- 229920003023 plastic Polymers 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 241001074085 Scophthalmus aquosus Species 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000000399 orthopedic effect Effects 0.000 description 8
- 230000003139 buffering effect Effects 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a kind of blind locks in distal end for orthopaedics intramedullary nail to bore, and the blind lock brill in the distal end includes: the locating piece of drill body and arc, is provided with location hole on locating piece, is provided with supporting block on the inner sidewall at locating piece both ends；Drill body and location hole are coaxially disposed, and drill body can stretch along its axis direction to rotation；Wherein, the top of drill body is provided with the regulating part for adjusting drilling depth, and the lower end of drill body is provided with prospecting bit.Bore position and adjustable drilling depth can be accurately positioned in the blind lock brill in the distal end.
Description
Technical Field
The utility model relates to a medical instrument, in particular to a distal blind locking drill for an orthopedic intramedullary nail.
Background
The Kirschner wire can be frequently used as a fixing part for fixing a fracture part in an orthopedic operation, an intramedullary nail is arranged in a medullary cavity of a bone, bones and soft tissues are arranged on the inner side and the outer side of the medullary cavity of the bone, the distal end of a general operation cannot be accurately positioned, the Kirschner wire with different diameters needs to be repeatedly replaced for positioning and guiding, a drill bit is used for drilling after positioning, then the Kirschner wire is used for fixing, and in addition, the drilling depth of the drill bit cannot be controlled by the method.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a blind lock of distal end bores for orthopedics intramedullary nail, this blind lock of distal end bores through accurate positioning drilling position and the effectual control drilling time of regulation drilling depth and the number of times of drilling location, reduces the operation time improvement operation success rate of disease.
In order to achieve the above object, the utility model provides a distal end blind lock bores for orthopedics intramedullary nail, this distal end blind lock bores includes: the positioning device comprises a drill body and an arc-shaped positioning piece, wherein positioning holes are formed in the positioning piece, and supporting blocks are arranged on the inner side walls of two ends of the positioning piece; the drill body and the positioning hole are coaxially arranged, and the drill body can stretch out and draw back along the axis direction in a self-rotating manner; the drill comprises a drill body, wherein the upper part of the drill body is provided with an adjusting piece for adjusting the drilling depth, and the lower end of the drill body is provided with a drilling bit.
Preferably, the adjusting piece is a sleeve provided with an internal thread, and an external thread matched with the internal thread is arranged on the outer side wall of the upper part of the drill body.
Preferably, the positioning piece and the positioning hole are coaxially provided with a positioning tube, and the inner diameter of the positioning tube is the same as the diameter of the positioning hole.
Preferably, the upper end of the positioning tube is provided with a buffer ring which is coaxial with the positioning tube and can rotate.
Preferably, an annular groove is formed in the annular surface of the upper end of the positioning pipe along the circumferential direction of the positioning pipe, and at least two protrusions matched with the annular groove are arranged at one end, close to the positioning pipe, of the buffer ring.
Preferably, one end of the protrusion facing the groove bottom of the annular groove is provided with a spherical surface.
Preferably, one end of the supporting block, which is far away from the positioning piece, is provided with an arc-shaped groove coaxial with the positioning piece so as to be attached to the body of the patient.
Preferably, a cotton layer is laid on the arc-shaped groove along the direction parallel to the axis of the arc-shaped groove.
Preferably, the positioning member is transparent plastic.
According to the technical scheme, the positioning piece is provided with the positioning hole, and the inner side walls at two ends of the positioning piece are provided with the supporting blocks; the drill body and the positioning hole are coaxially arranged, and the drill body can stretch out and draw back along the axis direction in a self-rotating manner; the drill comprises a drill body, wherein the upper part of the drill body is provided with an adjusting piece for adjusting the drilling depth, and the lower end of the drill body is provided with a drilling bit. When the far-end blind lock drill is used, the drill body is arranged on the electric drill, the electric drill used is the existing electric drill for drilling the orthopedic intramedullary nail, a positioning piece is placed at an operation position of a patient to be operated before the drill body is used, a gap is formed between the positioning piece and the operation position through supporting of a supporting block, so that the drilling angle of the drill body can be adjusted, the center of a positioning hole is aligned with the position to be drilled, the electric drill is started to drive the drill body to rotate, the drill body is fed towards the intramedullary to-be-drilled point after the intramedullary to-be-drilled point is found through the drill finding, the drilling time and the drilling positioning frequency are effectively controlled through the mutual matching of the adjusting piece and the supporting block, the far-end blind lock drill can effectively control the drilling time and the drilling positioning frequency through accurately positioning the drilling position and adjusting the drilling depth, and the operation time of.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is an overall schematic view of a preferred embodiment of a middle distal blind lock drill of the present invention;
FIG. 2 is a cross-sectional view of a preferred embodiment of the portion of the positioning tube and bumper ring of the present invention;
fig. 3 is a structural view of a preferred embodiment of a spacer according to the present invention.
Description of the reference numerals
1 locating piece 2 supporting block
3 positioning tube 4 buffer ring
5-bit 6-bit body
7 external thread 8 sleeve
9 raised 10 cotton layer
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the terms "upper, lower, left, right, front, rear, inner, and outer" and the like included in the terms refer to the orientation of the terms in the normal use state or the common names understood by those skilled in the art, and should not be construed as limiting the terms.
Referring to fig. 1-3, a distal blind lock drill for an orthopedic intramedullary nail, comprising: the positioning device comprises a drill body 6 and an arc-shaped positioning piece 1, wherein a positioning hole is formed in the positioning piece 1, and supporting blocks 2 are arranged on the inner side walls of two ends of the positioning piece 1; the drill body 6 and the positioning hole are coaxially arranged, and the drill body 6 can stretch out and draw back along the axial direction in a self-rotating manner; wherein, the upper portion of the drill body 6 is provided with an adjusting piece for adjusting the drilling depth, and the lower end of the drill body 6 is provided with a drilling bit 5.
Through the implementation of the technical scheme, the positioning piece 1 is provided with the positioning hole, and the inner side walls at two ends of the positioning piece 1 are provided with the supporting blocks 2; the drill body 6 and the positioning hole are coaxially arranged, and the drill body 6 can stretch out and draw back along the axial direction in a self-rotating manner; wherein, the upper portion of the drill body 6 is provided with an adjusting piece for adjusting the drilling depth, and the lower end of the drill body 6 is provided with a drilling bit 5. When the drill is used, the drill body 6 is arranged on the electric drill, the used electric drill adopts the existing electric drill for drilling the orthopedic intramedullary nail, the positioning piece 1 is placed at the operation position of a patient to be operated before the drill body 6 is used, the supporting piece 2 supports the positioning piece to form a gap with the operation position so as to adjust the drilling angle of the drill body 6, the center of the positioning hole is aligned with the position to be drilled, the electric drill is started to drive the drill body 6 to rotate, the drill body 6 is fed towards the intramedullary to perform intramedullary drilling after the intramedullary point to be drilled is found by the drill bit 5, the position finding is more accurate compared with the traditional method of directly performing intramedullary drilling by the drill bit, the integrated drilling is realized, the blind drilling by the drill bit after the position finding is not required to be performed by the Kirschner wire, the defects of the traditional separate construction are obvious, the position finding is difficult to be found by the drill bit for the second time, and finally, the intramedullary drilling depth is controlled by mutually matching the adjusting piece and the supporting block 2, and the far-end blind-locked drill can effectively control the drilling time and the drilling positioning times by accurately positioning the drilling position and adjusting the drilling depth, so that the operation time of patients is reduced, and the operation success rate is improved.
In this embodiment, in order to further realize the adjustment of the drilling depth of the drill body 6, it is preferable that the adjusting member is a sleeve 8 provided with an internal thread, and an external thread 7 matched with the internal thread is provided on the outer side wall of the upper part of the drill body 6. By rotating the sleeve 8 so that the sleeve 8 moves up and down along the length of the drill body 6, the drill body 6 cannot be fed further when the drill body 6 is in operation after one end of the sleeve 8 close to the positioning member 1 abuts against the positioning member 1, so that the feeding depth of the drill body 6 can be adjusted by adjusting the position of the sleeve 8 on the drill body 6.
In this embodiment, in order to further control the stability of the drill body 6 and prevent deviation, it is preferable that a positioning tube 3 is coaxially disposed on the positioning member 1 and the positioning hole, and the inner diameter of the positioning tube 3 is the same as the diameter of the positioning hole. The drill body 6 is controlled to be deviated in the horizontal direction within a certain range by the positioning tube 3, and in addition, the inner diameter of the positioning tube 3 is larger than the outer diameter of the drill body 6.
In this embodiment, in order to provide a certain buffering function at the moment when the sleeve 8 contacts the positioning member 1, and to avoid medical accidents, it is preferable that the upper end of the positioning tube 3 is provided with a buffering ring 4 which is coaxial with the positioning tube and can rotate.
In this embodiment, in order to further achieve a certain buffering effect at the moment when the sleeve 8 contacts the positioning element 1, and avoid causing medical accidents, it is preferable that an annular groove is formed on an annular surface of the upper end of the positioning tube 3 along the circumferential direction of the annular surface, and at least two protrusions 9 matched with the annular groove are formed at one end of the buffering ring 4 close to the positioning tube 3. The bulge 9 plays a role in supporting rotation, when the sleeve 8 contacts the buffer ring 4, the buffer ring 4 can be driven to rotate instantly by the rotating force of the drill body 6, so that a part of acting force is decomposed, and then the drill body 6 is pulled out immediately.
In this embodiment, in order to increase the sensitivity of the instant rotation of the cushion ring 4 and prevent the cushion ring 4 from causing the positioning member 1 to swing by applying a secondary torsion to the positioning member 1, it is preferable that one end of the protrusion 9 facing the groove bottom of the annular groove is provided as a spherical surface.
In this embodiment, in order to improve the comfort of the positioning member 1 on the body of the patient, preferably, an arc-shaped groove coaxial with the positioning member 1 is provided at one end of the supporting block 2 away from the positioning member 1 to attach to the body of the patient.
In this embodiment, in order to further improve the comfort of the positioning member 1 on the patient, it is preferred that the arc-shaped recess is provided with a cotton layer 10 along its axis parallel thereto.
In this embodiment, in order to facilitate the visual operation of the doctor and save the cost, it is preferable that the positioning member 1 is made of transparent plastic. The positioning piece 1 can be used as a disposable appliance for batch production, the adopted plastic is sterile plastic, and the sterilization treatment is needed before the use.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (9)
1. A distal blind lock drill for an orthopaedic intramedullary nail, comprising: the positioning device comprises a drill body (6) and an arc-shaped positioning piece (1), wherein a positioning hole is formed in the positioning piece (1), and supporting blocks (2) are arranged on the inner side walls of two ends of the positioning piece (1);
the drill body (6) and the positioning hole are coaxially arranged, and the drill body (6) can stretch out and draw back along the axis direction in a self-rotating manner; wherein,
the upper portion of the drill body (6) is provided with an adjusting piece for adjusting the drilling depth, and the lower end of the drill body (6) is provided with a drilling bit (5).
2. The distal blind lock drill according to claim 1, characterized in that the adjusting member is a sleeve (8) provided with an internal thread, and the outer side wall of the upper part of the drill body (6) is provided with an external thread (7) matched with the internal thread.
3. The distal blind lock drill according to claim 2, characterized in that a positioning tube (3) is arranged on the positioning member (1) coaxially with the positioning hole, and the inner diameter of the positioning tube (3) is the same as the diameter of the positioning hole.
4. The distal blind lock drill according to claim 3, characterized in that the upper end of the positioning tube (3) is provided with a buffer ring (4) coaxial and rotatable therewith.
5. The distal blind lock drill according to claim 4, characterized in that the annular surface of the upper end of the positioning tube (3) is provided with an annular groove along the circumferential direction thereof, and the end of the buffer ring (4) close to the positioning tube (3) is provided with at least two protrusions (9) matched with the annular groove.
6. The distal blind lock drill according to claim 5, characterized in that the end of the projection (9) facing the groove bottom of the annular groove is provided as a spherical surface.
7. The distal blind lock drill according to claim 1, characterized in that one end of the support block (2) away from the positioning member (1) is provided with an arc-shaped groove coaxial with the positioning member (1) for attaching to the body of the patient.
8. The distal blind lock drill according to claim 7, characterized in that the curved recess is laid with a cotton layer (10) along its axis parallel to it.
9. The distal blind lock drill according to any one of claims 1 to 8, characterized in that the positioning member (1) is a transparent plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721810350.XU CN209172409U (en) | 2017-12-22 | 2017-12-22 | The blind lock in distal end for orthopaedics intramedullary nail bores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721810350.XU CN209172409U (en) | 2017-12-22 | 2017-12-22 | The blind lock in distal end for orthopaedics intramedullary nail bores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209172409U true CN209172409U (en) | 2019-07-30 |
Family
ID=67357352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721810350.XU Expired - Fee Related CN209172409U (en) | 2017-12-22 | 2017-12-22 | The blind lock in distal end for orthopaedics intramedullary nail bores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209172409U (en) |
-
2017
- 2017-12-22 CN CN201721810350.XU patent/CN209172409U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IES20080551A2 (en) | A bolt apparatus | |
| CN201356602Y (en) | Safe drill for skull operations | |
| CN102784434A (en) | Bone filler conveying sleeve | |
| CN109009399B (en) | Accurate positioner of hollow nail of femoral neck fracture | |
| CN209172409U (en) | The blind lock in distal end for orthopaedics intramedullary nail bores | |
| CN112773494A (en) | Hollow nail for improving femoral head blood circulation | |
| CN209074854U (en) | A kind of Minimally Invasive Surgery screw merging auxiliary device | |
| CN203138650U (en) | Improved bone marrow core decompression surgical instrument for femoral head necrosis | |
| CN213156353U (en) | In-vivo implantation device for femoral neck fracture | |
| CN214857356U (en) | Hollow nail for improving femoral head blood circulation | |
| CN111493997B (en) | Guide device for assisting kirschner wire placement in PFN operation | |
| CN209966541U (en) | Working sleeve capable of replacing guide pin in minimally invasive screw fixation operation of pelvis and acetabulum | |
| CN204971540U (en) | Distal end axial index strip lock intramedullary nail | |
| CN104970875A (en) | Far-end axial indication locking intramedullary nail | |
| CN204600661U (en) | Piston type dicyclo pivot cone Odontoid process sight | |
| CN204744389U (en) | Shell fragment damping formula dicyclo pivot awl cdontoid process sight | |
| CN215018797U (en) | Guiding sighting device | |
| CN216603009U (en) | Articular surface locator for assisting in resetting and fixing articular surface collapse fracture | |
| CN211796818U (en) | Intramedullary nail guider capable of centering and fine adjustment | |
| CN204600660U (en) | Dicyclic pivot cone Odontoid process sight | |
| CN212879541U (en) | Probe guide sleeve for orthopedic surgery | |
| CN112137704B (en) | Osteoporosis patient's shin bone tubercle draw gear | |
| CN102755187A (en) | Proximal femoral percutaneous locking dynamic hip helical blade nail | |
| CN214484577U (en) | Combined casing surgical tool, bevel hollow casing assembly and stripper | |
| CN204049826U (en) | A kind of fractured near end of thighbone dynamic hip screw fixed guider |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20191222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |