CN213722357U - Aiming device for distal locking of femoral intramedullary nail - Google Patents
Aiming device for distal locking of femoral intramedullary nail Download PDFInfo
- Publication number
- CN213722357U CN213722357U CN202022452560.4U CN202022452560U CN213722357U CN 213722357 U CN213722357 U CN 213722357U CN 202022452560 U CN202022452560 U CN 202022452560U CN 213722357 U CN213722357 U CN 213722357U
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- China
- Prior art keywords
- aiming
- intramedullary nail
- fastening
- femoral intramedullary
- locking
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- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 210000001694 thigh bone Anatomy 0.000 claims abstract description 7
- 125000003003 spiro group Chemical group 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 210000001185 bone marrow Anatomy 0.000 abstract 1
- 210000002414 leg Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
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Abstract
The utility model discloses a distal end of femoral intramedullary nail sighting device for locking nail, including handle and supplementary fastening device, one side spiro union of handle has locking screw, locking screw runs through handle and spiro union have the femoral intramedullary nail, the periphery of femoral intramedullary nail is equipped with the thighbone body, there is the connecting plate bottom of handle through bolted connection, and is equipped with multiunit optional hole on the connecting plate, and there is adjusting clamp plate bottom of optional hole through bolted connection, adjusting clamp plate's one side spiro union has adjusting screw, adjusting clamp plate has seted up the U-shaped transmission groove near one side of adjusting screw, and has the guide arm of aiming through the pivot connection in the U-shaped transmission groove. This distal locking of femoral intramedullary nail is with aiming device can realize aiming femoral intramedullary nail latched position, can also further improve the fixed dynamics to aiming the guide arm, reduces the injury and the improvement locking accuracy of femoral bone marrow trompil department.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, concretely relates to distal locking of femoral intramedullary nail is with aiming device.
Background
The structure and the principle of common femoral intramedullary nail and sight thereof are the same basically clinically, basically for squeeze into behind the femoral intramedullary nail in the femoral medulla, keep away from one side that the femoral intramedullary nail advances the end, it is fixed to run through the lock nail, thereby conveniently carry out the medical treatment to situations such as fracture, it is little to have the wound, reply fast and be convenient for later stage advantage such as demolish, at the aiming in-process, because one end is located the femoral medulla, stability is higher, it does not have obvious support fixed knot structure to aim at the guide bar other end, lead to wholly being a lever structure, in to operating-process such as femoral medulla trompil, the skew problem appears easily, current solution is for passing through bearing structure and skin in close contact with, thereby improve the dynamics of aiming, and to some patients, the muscle layer is more, the extrusion resilience phenomenon appears easily, and then influence the location.
Therefore, in order to meet the current situation, the design and production of the aiming device for the distal locking nail of the femoral intramedullary nail are urgently needed to meet the actual use requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a distal locking of femoral intramedullary nail is with aiming device to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a sighting device for distal locking of a femoral intramedullary nail comprises a handle and an auxiliary fastening mechanism, wherein one side of the handle is screwed with a locking screw rod, the locking screw rod penetrates through the handle and is in threaded connection with a femoral intramedullary nail, a femoral body is arranged on the periphery of the femoral intramedullary nail, the bottom of the handle is connected with a connecting plate through a bolt, and the connecting plate is provided with a plurality of groups of selecting holes, the bottom of the selecting holes is connected with an adjusting clamp plate through bolts, one side of the adjusting clamp plate is screwed with an adjusting screw rod, one side of the adjusting clamp plate close to the adjusting screw rod is provided with a U-shaped transmission groove, and the U-shaped transmission groove is connected with a sighting guide rod through a shaft pin, the adjusting screw rod penetrates through the adjusting clamp plate and is connected with a helical gear, the periphery of the bevel gear is in meshed transmission connection with a sighting guide rod, and an auxiliary fastening mechanism is installed on one side, away from the adjusting clamp plate, of the sighting guide rod;
the auxiliary fastening mechanism comprises a connecting block fixed to the bottom of the aiming guide rod and a supporting seat clamped to the bottom of the femoral body, connecting pieces are formed on two sides of the connecting block in an integrated injection mode and connected with the aiming guide rod through bolts, fastening nuts are screwed in the middle of the connecting block and penetrate through the connecting block and connected with fastening screws, and movable blocks are inserted into one side, far away from the fastening nuts, of the fastening screws.
Preferably, the top of aiming guide rod has top fastening frame through bolted connection, and top fastening frame keeps away from some top location platforms of one side integrated into one piece of aiming guide rod, and has seted up the top locating hole on the top location platform.
Preferably, the bottom of the aiming guide rod is provided with a clamping sliding groove matched with the connecting sheet, the connecting sheet is clamped in the clamping guide groove, and the inner wall of the clamping sliding groove is provided with fastening threads.
Preferably, the bottom of the supporting seat is bonded with a bandage connecting block, and a bandage connecting hole is formed in the bandage connecting block.
Preferably, one side integrated into one piece that fastening screw was kept away from to the movable block has the connector, one side welding that the movable block is close to fastening screw has two sets of spacing posts that are the symmetric distribution, and spacing post through connection piece, be connected with the platform of being connected with connector looks adaptation through the pivot on the supporting seat.
The utility model discloses a technological effect and advantage: the aiming device for locking the distal end of the femoral intramedullary nail can change the height within a certain range under the action of the helical gear through the aiming guide rod, is convenient for fine aiming adjustment through the adjusting screw rod, and has higher fixing force due to meshing connection of teeth; through the arrangement of the supporting seat, the binding band for binding and fixing the leg part in the medical care fixing process can be matched for fixing the supporting seat from the outer side, so that the positioning and aiming effect is further improved from the outside, and the shaking in the operation process is reduced; through being equipped with the connecting block that can slide adjusting location on aiming guide rod within a certain range, after aiming guide rod aims, carry out the fine setting of connecting block, realize with the alignment of being connected the platform to conveniently aim aiming guide rod aim fixed, this thighbone intramedullary nail distal end aiming device for locking nail can realize when aiming thighbone intramedullary nail latched position, can also further improve the fixed dynamics to aiming guide rod, reduce the injury and the improvement locking accuracy of thighbone marrow trompil department.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view of the aiming guide of the present invention;
fig. 3 is a schematic structural diagram of the auxiliary fastening mechanism of the present invention.
In the figure: the device comprises a handle 1, a locking screw rod 2, a femoral intramedullary nail 3, a femoral body 4, a connecting plate 5, an adjusting splint 6, an adjusting screw rod 7, an aiming guide rod 8, a bevel gear 9, a top fastening frame 10, an auxiliary fastening mechanism 11, a connecting block 12, a supporting seat 13, a connecting plate 14, a fastening nut 15, a fastening screw rod 16, a movable block 17, a connector 18, a limiting column 19 and a connecting platform 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.
The utility model provides a sighting device for distal locking of a femoral intramedullary nail as shown in figures 1-3, which comprises a handle 1 and an auxiliary fastening mechanism 11, wherein one side of the handle 1 is screwed with a locking screw 2, the locking screw 2 penetrates through the handle 1 and is screwed with the femoral intramedullary nail 3, the periphery of the femoral intramedullary nail 3 is provided with a femoral body 4, the bottom of the handle 1 is connected with a connecting plate 5 through a bolt, the connecting plate 5 is provided with a plurality of groups of selecting holes, the selecting holes are auxiliary holes designed according to the requirements of the operation specifications commonly encountered in the operation, different hole sites can be selected according to the length and a certain bending degree of the femur, the sighting device is an existing mature structure and is not further described, the bottom of the selecting holes is connected with an adjusting splint 6 through a bolt, one side of the adjusting splint 6 is screwed with an adjusting screw 7, one side of the adjusting splint 6 close to the adjusting screw 7 is provided with a U-shaped transmission groove, the U-shaped transmission groove is connected with an aiming guide rod 8 through a shaft pin, the adjusting screw 7 penetrates through the adjusting clamp plate 6 and is connected with a bevel gear 9, the periphery of the bevel gear 9 is in meshing transmission connection with the aiming guide rod 8, the bevel gear 9 is driven to rotate through the adjusting screw 7, so that the angle adjustment of the aiming guide rod 8 in the vertical direction is driven, the height change is realized, the extension line of a non-light-transmission rod core of an external aiming developing rod (not shown in the figure) arranged on the aiming guide rod 8 is aligned with a corresponding lock nail hole on the femoral intramedullary nail 3 in a perspective state, and an auxiliary fastening mechanism 11 is arranged on one side, away from the adjusting clamp plate 6, of the aiming guide rod 8;
Specifically, there is top fastening frame 10 at the top of aiming guide 8 through bolted connection, and top fastening frame 10 keeps away from some top location platforms of one side integrated into one piece of aiming guide 8, and has seted up the top locating hole on the top location bench, can follow the upside and further laminate thighbone body 4, realize fixedly.
Specifically, the tight spout of clamp with connection piece 14 looks adaptation is seted up to the bottom of aiming guide 8, and connection piece 14 joint is in pressing from both sides tight guide way, and presss from both sides tight screw thread on the inner wall of tight spout, can realize that connection piece 14 drives connecting block 12 and carries out the certain limit and remove, and the displacement range is less, ensures to press from both sides tight dynamics and conveniently to be connected with whole corresponding complete set's femoral intramedullary nail 3.
Specifically, the bottom of supporting seat 13 bonds and has the bandage connecting block, and has seted up the bandage connecting hole in the bandage connecting block, and it is fixed to be connected with outside ligature fixed equipment, realizes the fixed to supporting seat 13.
Specifically, one side integrated into one piece that fastening screw 16 was kept away from to movable block 17 has connector 18, one side welding that movable block 17 is close to fastening screw 16 has two sets of spacing posts 19 that are the symmetric distribution, and spacing post 19 through connection piece 12, be connected with the platform 20 of being connected with the 18 looks adaptations of connector through the pivot on the supporting seat 13, improve holistic fixed dynamics.
The working principle of the aiming device for locking the distal end of the femoral intramedullary nail is that the whole device is rotated clockwise by 90 degrees in the direction of right view in the attached drawing 1 and then used to realize that the aiming guide rod 8 is positioned at one side of the leg part of the human body, the bevel gear 9 is driven to rotate by the adjusting screw 7, thereby realizing the height adjustment of the aiming guide rod 8, under the action of the external light transmission equipment, the extension line of the non-light transmission rod core of the external aiming developing rod is aligned with the corresponding locking nail hole on the femoral intramedullary nail 3, after the alignment, the supporting seat 13 which is fixed on the leg part of the patient in advance through a bandage is fixed (under the anesthesia effect, the leg part is bundled and fixed, the possibility of shaking the supporting seat 13 greatly can not appear), then the slight transverse adjustment of the connecting block 12 is carried out, so that the connecting head 18 is aligned with the connecting table 20, and the fastening screw 16 drives the movable block 17 to move, so that the connecting head 18 is connected with the connecting table 20, further improve holistic connection temperature and decide, accomplish the location.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a distal locking of femoral intramedullary nail is with aiming device, includes handle (1) and supplementary fastening device (11), its characterized in that: one side of the handle (1) is in threaded connection with a locking screw rod (2), the locking screw rod (2) penetrates through the handle (1) and is in threaded connection with a femoral intramedullary nail (3), a femoral body (4) is arranged on the periphery of the femoral intramedullary nail (3), the bottom of the handle (1) is connected with a connecting plate (5) through a bolt, a plurality of groups of selecting holes are arranged on the connecting plate (5), the bottom of each selecting hole is connected with an adjusting clamp plate (6) through a bolt, one side of each adjusting clamp plate (6) is in threaded connection with an adjusting screw rod (7), one side of each adjusting clamp plate (6) close to the corresponding adjusting screw rod (7) is provided with a U-shaped transmission groove, an aiming guide rod (8) is connected in each U-shaped transmission groove through a shaft pin, each adjusting screw rod (7) penetrates through each adjusting clamp plate (6) and is connected with a bevel gear (9), the periphery of each bevel gear (9) is in meshed transmission connection with the corresponding aiming guide rod (8), an auxiliary fastening mechanism (11) is arranged on one side of the aiming guide rod (8) far away from the adjusting splint (6);
supplementary fastening device (11) are including fixing connecting block (12) and joint supporting seat (13) in thighbone body (4) bottom of aiming guide arm (8) bottom, the equal integrative injection moulding in both sides of connecting block (12) has connection piece (14), connection piece (14) are connected through bolt and aiming guide arm (8), the intermediate position spiro union of connecting block (12) has fastening nut (15), fastening nut (15) run through connecting block (12) and be connected with fastening screw (16), fastening screw (16) are kept away from one side of fastening nut (15) and are pegged graft and have movable block (17).
2. The aiming device for distal locking of femoral intramedullary nail according to claim 1, wherein: the top of aiming guide rod (8) has top fastening frame (10) through bolted connection, and top fastening frame (10) keep away from some top location platforms of one side integrated into one piece of aiming guide rod (8), and the top location bench has seted up the top locating hole.
3. The aiming device for distal locking of femoral intramedullary nail according to claim 1, wherein: the bottom of the aiming guide rod (8) is provided with a clamping sliding groove matched with the connecting sheet (14), the connecting sheet (14) is clamped in the clamping guide groove, and the inner wall of the clamping sliding groove is provided with fastening threads.
4. The aiming device for distal locking of femoral intramedullary nail according to claim 1, wherein: the bottom of the supporting seat (13) is bonded with a bandage connecting block, and a bandage connecting hole is formed in the bandage connecting block.
5. The aiming device for distal locking of femoral intramedullary nail according to claim 1, wherein: one side integrated into one piece that fastening screw (16) was kept away from in movable block (17) has connector (18), one side welding that movable block (17) is close to fastening screw (16) has two sets of spacing posts (19) that are symmetric distribution, and spacing post (19) through connection piece (12), be connected with through the pivot on supporting seat (13) with connector (18) looks adaptation be connected platform (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022452560.4U CN213722357U (en) | 2020-10-29 | 2020-10-29 | Aiming device for distal locking of femoral intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022452560.4U CN213722357U (en) | 2020-10-29 | 2020-10-29 | Aiming device for distal locking of femoral intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213722357U true CN213722357U (en) | 2021-07-20 |
Family
ID=76855278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022452560.4U Expired - Fee Related CN213722357U (en) | 2020-10-29 | 2020-10-29 | Aiming device for distal locking of femoral intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213722357U (en) |
-
2020
- 2020-10-29 CN CN202022452560.4U patent/CN213722357U/en not_active Expired - Fee Related
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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: 20210720 |