CN210811455U

CN210811455U - Intramedullary nail sighting device under C-arm machine positioning

Info

Publication number: CN210811455U
Application number: CN201921219376.6U
Authority: CN
Inventors: 叶辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-23
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses an intramedullary nail sighting device under C arm machine location, which comprises a handle, wherein an intramedullary nail is installed at one end of the handle. In the utility model, through the cooperation of the first fixing screw, the first connecting rod, the second connecting rod, the ring, the hollow tube and the transverse plate, the effect that the drill bit of the electric drill penetrates from the inside of the hollow tube and penetrates out from the inside of the circle center is achieved, the function of limiting the drilling direction of the drill bit is realized, the accuracy of drilling the drill bit is improved, meanwhile, the distance between the ring and the hollow tube can be adjusted according to the actual use requirement, and the applicability of the sighting device is convenient to improve; through the cooperation of bracing piece, elevator, pivot, disc, fourth fixed screw and fifth fixed screw, reached the position through adjusting block and disc and carried out the effect adjusted to the position and the inclination of hollow tube and ring, realized being convenient for improve the suitability of this sight.

Description

Intramedullary nail sighting device under C-arm machine positioning

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, intramedullary nail sight under in particular to C arm machine location.

Background

At present, the intramedullary nail is mainly used for treating the fracture clinically, the technology has little influence on the broken end of the fracture, and the broken end pressurization can be implemented, so that the intramedullary nail has a plurality of advantages. In the operation of installing intramedullary nail treatment fracture, lag screw and locking screw can be nailed into to the intramedullary nail, need use corresponding sight and screw sleeve, but when the intramedullary nail took place the circumstances such as elastic deformation along with the shape of long bone, original sight often can't pinpoint, influences going on smoothly of bone surgery, the time of extension operation, increases the operation risk.

To this end, we propose a C-arm machine positioning lower intramedullary nail aiming device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a C-arm machine positioning lower intramedullary nail sighting device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

intramedullary nail sight under C arm machine location, including the handle, the intramedullary nail is installed to the one end of handle, the one end lateral wall fixedly connected with extension plate of intramedullary nail is kept away from to the handle, the extension plate is connected with the bracing piece through adjustment mechanism, the lateral wall of bracing piece is fixed to have cup jointed the elevator, be connected with the diaphragm through slewing mechanism on the elevator, the bottom of diaphragm is connected with the head rod that is the setting of L type and the second connecting rod that is the setting of L type through first fixed screw respectively, be equipped with a plurality of first screw holes that correspond with first fixed screw on the diaphragm, the bottom fixedly connected with ring of head rod, the bottom fixedly connected with hollow tube of second connecting rod, just the axle center of ring and the axle center of hollow tube are located same straight line.

Preferably, the handle is connected with the extension plate through a second fixing screw.

Preferably, adjustment mechanism includes the slider of sliding connection at the extension plate top, the top of extension plate is equipped with the spout that corresponds with the slider, the slider passes through the third fixed screw and is connected with the extension plate, the lateral wall of extension plate is equipped with a plurality of second screw holes that correspond with the third fixed screw, the top of slider and the bottom fixed connection of bracing piece.

Preferably, the lifting block is connected with the support rod through a fourth fixing screw, and one end of the fourth fixing screw penetrates through the lifting block and abuts against the outer side wall of the support rod.

Preferably, slewing mechanism is including rotating the pivot of connection at the elevator lateral wall, the one end fixedly connected with disc of elevator is kept away from in the pivot, the lateral wall of disc and the lateral wall fixed connection of diaphragm, the disc passes through the fifth fixed screw and is connected with the elevator, be equipped with on the disc with a plurality of third screw holes of fifth fixed screw, it is a plurality of the third screw hole uses the axle center of disc to encircle the setting as the centre of a circle.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

1. the effect that the drill bit of the electric drill penetrates from the interior of the hollow pipe and penetrates out of the interior of the circle center is achieved through the matching effect of the first fixing screw, the first connecting rod, the second connecting rod, the circular ring, the hollow pipe and the transverse plate, the function of limiting the drilling direction of the drill bit is realized, the drilling accuracy of the drill bit is improved, meanwhile, the distance between the circular ring and the hollow pipe can be adjusted according to actual use requirements, and the applicability of the sighting device is convenient to improve;

2. through the cooperation of bracing piece, elevator, pivot, disc, fourth fixed screw and fifth fixed screw, reached the position through adjusting block and disc and carried out the effect adjusted to the position and the inclination of hollow tube and ring, realized being convenient for improve the suitability of this sight.

Drawings

Fig. 1 is a schematic structural view of the intramedullary nail sighting device under the C-arm machine positioning of the utility model;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic view of the connection structure of the lifting block, the rotating shaft, the disc and the fifth fixing screw in the C-arm machine positioning lower intramedullary nail sighting device provided by the utility model;

fig. 4 is a schematic view of a connection structure of a lifting block, a support rod and a fourth fixing screw in the C-arm machine positioning lower intramedullary nail sighting device provided by the utility model;

FIG. 5 is a schematic structural view of a transverse plate of the C-arm machine positioning lower intramedullary nail sighting device of the present invention;

fig. 6 is a schematic view of the connection structure of the intramedullary nail, the handle, the extension plate, the second fixing screw, the slider and the third fixing screw in the intramedullary nail sighting device under the C-arm machine positioning of the present invention;

fig. 7 is a schematic structural view of an extension plate in the C-arm machine positioning lower intramedullary nail sighting device of the present invention.

In the figure: 1. a grip; 2. intramedullary nails; 3. a support bar; 4. a lifting block; 5. a first fixing screw; 6. a disc; 7. a second fixing screw; 8. a transverse plate; 9. a third fixing screw; 10. a first connecting rod; 11. a second connecting rod; 12. a hollow tube; 13. a circular ring; 14. a fourth fixing screw; 15. a fifth set screw; 16. an extension plate; 17. a slider; 18. a rotating shaft.

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.

Referring to fig. 1-7, intramedullary nail sight under C arm machine location, including handle 1, intramedullary nail 2 is installed to the one end of handle 1, and handle 1 keeps away from the one end lateral wall fixedly connected with extension plate 16 of intramedullary nail 2, and handle 1 is connected with extension plate 16 through second fixed screw 7, and the effect of second fixed screw 7 is convenient for fix extension plate 16 on handle 1, and the effect of extension plate 16 is convenient for prolong the length of handle 1, makes things convenient for the position of ring 13 and hollow tube 12 to adjust.

Wherein, extension plate 16 is connected with bracing piece 3 through adjustment mechanism, adjustment mechanism includes slider 17 of sliding connection at extension plate 16 top, extension plate 16's top is equipped with the spout that corresponds with slider 17, slider 17 is connected with extension plate 16 through third fixed screw 9, extension plate 16's lateral wall is equipped with a plurality of second screw holes that correspond with third fixed screw 9, slider 17's top and bracing piece 3's bottom fixed connection, slider 17's effect is the position of being convenient for adjust bracing piece 3, be convenient for adjust bracing piece 3's position according to the in-service use demand, the effect of third fixed screw 9 is fixed slider 17's position, prevent when driling patient's knee joint, slider 17's position changes, influence the accuracy degree to drilling of patient's knee joint department.

Wherein, the outer sidewall of bracing piece 3 is fixed to be cup jointed elevator 4, and elevator 4 is connected with bracing piece 3 through fourth fixed screw 14, and elevator 4 is run through and the lateral wall counterbalance with bracing piece 3 to the one end of fourth fixed screw 14, and through screwing up fourth fixed screw 14, fourth fixed screw 14 runs through elevator 4 and the lateral wall counterbalance of bracing piece 3, has reached and has fixed the effect on bracing piece 3 with elevator 4.

Wherein, the lifting block 4 is connected with a transverse plate 8 through a rotating mechanism, the rotating mechanism comprises a rotating shaft 18 which is rotatably connected with the outer side wall of the lifting block 4, one end of the rotating shaft 18 far away from the lifting block 4 is fixedly connected with a disc 6, the outer side wall of the disc 6 is fixedly connected with the outer side wall of the transverse plate 8, the disc 6 is connected with the lifting block 4 through a fifth fixing screw 15, the disc 6 is provided with a plurality of third screw holes which are connected with the fifth fixing screw 15, the third screw holes are arranged by taking the axle center of the disc 6 as the circle center in a surrounding way, so that when the knee joint of a patient needs to be obliquely punched, the inclination angle of the transverse plate 8 can be adjusted as required, thereby the linear inclination which penetrates through the circle center of the circular ring 13 and the circle center of the hollow tube 12 can be adjusted, the fifth fixing screw 15 is used for fixing the inclination angle, affecting the accuracy of drilling the knee joint of the patient.

Wherein the bottom of the transverse plate 8 is respectively connected with a first connecting rod 10 arranged in an L shape and a second connecting rod 11 arranged in an L shape through a first fixing screw 5, the transverse plate 8 is provided with a plurality of first screw holes corresponding to the first fixing screws 5, the bottom of the first connecting rod 10 is fixedly connected with a circular ring 13, the bottom of the second connecting rod 11 is fixedly connected with a hollow tube 12, and the axle center of the circular ring 13 and the axle center of the hollow tube 12 are positioned on the same straight line, the hollow tube 12 and the circular ring 13 are respectively positioned from two sides of the limb of the patient, a straight line is formed between two points of the circle center of the circular ring 13 and the circle center of the hollow tube 12, when punching, the drill bit runs through the centre of a circle of ring 13 and the centre of a circle of hollow tube 12 respectively, is convenient for improve the accuracy of punching, and the effectual intramedullary nail 2 of avoiding takes place the condition of unable accurate positioning often when the circumstances such as elastic deformation takes place along with the shape of long bone when the original sight.

In the utility model, when the knee joint of the patient needs to be drilled, the C-arm machine is firstly used for fixing the two sides of the knee joint of the patient and marking, then the height of the transverse plate 8 and the inclination angle of the transverse plate 8 are adjusted according to the angle of the patient needing to be drilled, the fourth fixing screw 14 and the fifth fixing screw 15 are respectively used for fixing, then the distance between the first connecting rod 10 and the second connecting rod 11 is adjusted according to the fat and thin degree of the knee joint of the patient, the outer side wall at one end of the hollow tube 13 and the outer side wall of the ring 12 are respectively attached to the two sides of the knee joint of the patient, and the points marked on the two sides of the knee joint of the patient are respectively arranged at the circle center of the hollow tube 13 and the circle center of the ring 12 in advance, finally, the rotary drill bit is penetrated from the inside of the hollow tube 13 and is penetrated out from, the condition that the original sighting device can not be accurately positioned often when the intramedullary nail 2 elastically deforms along with the shape of the long bone is effectively avoided.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model is no longer detailed here.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

The intramedullary nail sighting device under the C-arm machine positioning comprises a handle (1) and is characterized in that an intramedullary nail (2) is installed at one end of the handle (1), an extension plate (16) is fixedly connected to the outer side wall of one end, far away from the intramedullary nail (2), of the handle (1), the extension plate (16) is connected with a support rod (3) through an adjusting mechanism, a lifting block (4) is fixedly sleeved on the outer side wall of the support rod (3), a transverse plate (8) is connected to the lifting block (4) through a rotating mechanism, the bottom of the transverse plate (8) is respectively connected with a first connecting rod (10) in an L-shaped arrangement and a second connecting rod (11) in an L-shaped arrangement through a first fixing screw (5), a plurality of first screw holes corresponding to the first fixing screws (5) are formed in the transverse plate (8), and a circular ring (13) is fixedly connected to the bottom of the first connecting rod (10, the bottom of the second connecting rod (11) is fixedly connected with a hollow pipe (12), and the axis of the circular ring (13) and the axis of the hollow pipe (12) are located on the same straight line.
2. The C-arm machine positioned lower intramedullary nail sight of claim 1, wherein said grip (1) is connected to an extension plate (16) by a second set screw (7).
3. The intramedullary nail sighting device under C-arm machine positioning of claim 1, wherein the adjusting mechanism comprises a sliding block (17) which is slidably connected to the top of the extension plate (16), the top of the extension plate (16) is provided with a sliding groove corresponding to the sliding block (17), the sliding block (17) is connected with the extension plate (16) through a third fixing screw (9), the outer side wall of the extension plate (16) is provided with a plurality of second screw holes corresponding to the third fixing screw (9), and the top of the sliding block (17) is fixedly connected with the bottom of the support rod (3).
4. The intramedullary nail aiming device under C-arm machine positioning according to claim 1, characterized in that the lifting block (4) is connected with the support rod (3) by a fourth fixing screw (14), and one end of the fourth fixing screw (14) penetrates through the lifting block (4) and abuts against the outer side wall of the support rod (3).
5. The intramedullary nail sighting device under C arm machine location of claim 1, wherein, the slewing mechanism includes rotating shaft (18) of connection at elevator block (4) lateral wall, the one end fixedly connected with disc (6) of elevator block (4) is kept away from in pivot (18), the lateral wall of disc (6) and the lateral wall fixed connection of diaphragm (8), disc (6) are connected with elevator block (4) through fifth fixed screw (15), be equipped with on disc (6) with a plurality of third screw holes of fifth fixed screw (15), it is a plurality of the third screw hole uses the axle center of disc (6) to encircle the setting as the centre of a circle.