CN210330665U - Positioning bone tunnel device for reconstruction of injury of anterior cruciate ligament of knee joint - Google Patents
Positioning bone tunnel device for reconstruction of injury of anterior cruciate ligament of knee joint Download PDFInfo
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- CN210330665U CN210330665U CN201920586822.0U CN201920586822U CN210330665U CN 210330665 U CN210330665 U CN 210330665U CN 201920586822 U CN201920586822 U CN 201920586822U CN 210330665 U CN210330665 U CN 210330665U
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Abstract
The utility model discloses a location bone tunnel device for knee joint anterior cruciate ligament damage is rebuild, including leading drill bushing, sight handle and sight, lead the drill bushing and can be according to X-Y to be the gliding connection of straight line on the base of sight handle, the connection that the sight can slide is on the arc slide rail. The utility model discloses simple structure, it is simple to use, can conveniently dismantle and possess to slide spacingly to and the elasticity function, thereby solved difficult cleaning and disinfection and operated inconvenience, improved operation security and efficiency.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to restoration and the reconstruction of knee joint anterior cruciate ligament damage for the sighting device in location thighbone, shin bone tunnel has for a location bone tunnel device that is used for knee joint anterior cruciate ligament damage to rebuild.
Background
In recent decades, with the successful launch of Olympic games, the consciousness of health care of the whole world is greatly improved, the repair and reconstruction of sports injuries, particularly knee joint ligament injuries, are increased year by year, the knee joint anterior cruciate ligament injury is one of the most common and serious sports injuries, and the more mature arthroscopic technology is, the more elaborate the establishment of bone tunnels for reconstructing the ligament injuries is required. The establishment of the bone tunnel is divided into a femur and a tibia, and Hefzy research finds that slight changes of the position of a femoral stopping point can obviously influence the length and tension characteristics of ligaments, and the position of a tibial bone path is important as the femoral bone path, so the establishment and the point selection of the bone tunnel are particularly careful. The existing applied positioning aiming instruments are different, the overall structural design adopts non-detachable connection, and the function of tightness is lacked. In the reconstruction of the injury of the anterior cruciate ligament, the broken bone slag is more, the connecting part of the undetachable sighting device is inconvenient to clean and disinfect, the problem of incomplete cleaning and disinfection exists, and the sighting device is easy to be blocked due to the broken bone slag connection. The lack of a tightening function is easily biased after the proper position adjustment during a stressful surgical procedure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming among the above-mentioned prior art, provide a simple structure, simple to use can conveniently dismantle and possess and slide spacingly to and the elasticity function, thereby solved difficult cleaning and disinfecting and operate inconveniently, improved the location bone tunnel device that is used for knee joint anterior cruciate ligament damage to rebuild of operation security and efficiency.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
the utility model provides a location bone tunnel device for knee joint anterior cruciate ligament injury is rebuild, includes and leads drill bushing (1), sight handle (2) and sight (4), it can be according to X-Y to lead drill bushing (1) and do the connection of rectilinear sliding on the base of sight handle (2), sight (4) slidable connect on arc slide rail (24).
A guide drill (51) is arranged in the through hole of the guide drill sleeve (1), so that the guide drill (51) can smoothly pass through the through hole, the guide drill (51) is a K-shaped needle (7), and the K-shaped needle (7) is an instrument used in a conventional operation; the sleeve body (13) of the drill guide sleeve (1) can penetrate through the base through hole (22) of the sighting device handle (2) and linearly slide according to X-Y.
The sighting device handle (2) comprises a base (29) and an arc-shaped sliding rail (24), wherein a base through hole (22) is formed in the base (29), the drill guide sleeve (1) can penetrate through the base through hole (22), and the sighting device handle can achieve the positioning effect of drilling a bone tunnel after the sighting device (4) is adjusted to be at a proper angle; the base (29) is provided with a square tunnel (21) and is connected with the base through hole (22); the front surface of the base (29) is provided with a U-shaped tunnel (23) and is connected with the square tunnel (21); the arc-shaped sliding rail (24) is provided with a front surface (25) of the arc-shaped sliding rail and a back surface (27) of the arc-shaped sliding rail, the front surface (25) of the arc-shaped sliding rail is engraved with an angle line and a degree, and the reading is convenient to select the correct angle direction during the operation; the reverse side (27) of the arc-shaped sliding rail is provided with an arc-shaped groove (26), an angle line and a degree are carved in the arc-shaped groove (26), and the correct angle direction can be conveniently read and selected during the operation.
The sighting device (4) comprises an arc-shaped positioning hook (41), a connecting rod (42) and a lantern ring (43); a T-shaped groove (45) is formed in the lantern ring (43) and penetrates through the arc-shaped sliding rail (24) of the sighting device handle (2), a threaded hole is formed in the T-shaped groove (45) and corresponds to the arc-shaped groove (26) in the reverse surface (27) of the arc-shaped sliding rail; the arc-shaped sliding rail (24) penetrates through the T-shaped groove (45) of the sighting device (4) to enable the sighting device to move along the arc-shaped sliding rail (24).
A location bone tunnel device for knee joint anterior cruciate ligament injury is rebuilt still be provided with fastening screw (3), fastening screw (3) are through the screw hole that is equipped with in T-slot (45), adopt the mode that the screw thread was screwed to get into arc recess (26) and withstand the inner face in order to reach the fixed action, fastening screw (3) are through the screw hole that is equipped with in T-slot (45), adopt the mode that the screw thread was screwed to get into arc recess (26) side in order to reach limiting displacement.
The arc-shaped positioning hook (41) and the support of the connecting rod (42) extend into the tibial plateau to clamp the point C.
The lantern ring (43) is provided with scale indicating lines, and the angle is adjusted by matching with the scale lines on the front surface of the arc-shaped sliding rail (24).
A location bone tunnel device for knee joint anterior cruciate ligament damage is rebuild still be provided with shaft coupling cam (5), shaft coupling cam (5) divide into oval boss, middle part cylinder and annular shaft coupling piece triplex, the major diameter of oval boss can be fixed with the situation that touches at rotatory in-process leads drill bushing (1), the middle part cylinder penetrates U type tunnel (23) card in semicircle position, annular shaft coupling piece one end leads to threaded hole, and fastening knob (6) tip position penetrates the screw hole, and fastening knob (6) middle part screw in screw hole, fastening knob (6) tip side meets with the positive arc recess medial surface of base (29) of sight handle, reaches to stir fastening knob (6) rotation shaft coupling cam (5) and fixes or loosen and lead drill bushing (1).
Lead drill bushing (1) including button head (11), cover body (13) and tip position (14) triplex, tip position (14) touch in shin bone (9) to the path is stable when the path is convenient for bore bone tunnel in little hammer tap button head (11) in firm tunnel route.
The utility model discloses a theory of operation: the base is provided with a square tunnel (21) and a U-shaped tunnel (23), is connected with the through hole and is connected with a coupling cam (5) to achieve the effect of linking and fastening the knob; the coupling cam (5) is provided with a threaded hole capable of being connected with a fastening knob (6), the fastening knob (6) is in contact with the side surface of the annular groove on the surface of the sighting device handle base through the threaded hole at the side surface of the thin end to form a limiting sliding effect, so that the effect of tightening and loosening the drill guide sleeve (1) is achieved, and the connection and disconnection are not easy to occur; the head end of the sighting device is provided with a T-shaped groove, a threaded hole is drilled at the bottom of the T-shaped groove, an arc-shaped groove is formed in the sliding rail part of the sighting device handle (2), the top end of the sliding rail of the sighting device handle (2) penetrates through the T-shaped groove of the sighting device, and the arc-shaped groove of the sliding rail coaxially corresponds to the threaded hole at the bottom of the T-shaped groove of the sighting device; the arc-shaped sliding rail of the sighting device handle (2) passes through the T-shaped groove of the sighting device, and in the connection state, the fastening screw passes through a threaded hole at the bottom of the T-shaped groove of the sighting device in a threaded connection mode and reaches the bottom of the arc-shaped groove of the arc-shaped sliding rail, so that the sighting device is limited in the connection state, and in addition, the elastic connection state of the sighting device handle and the sighting device is realized under the clockwise and anticlockwise knob of the fastening screw; the arc-shaped positioning hook (41) of the sighting device forms a certain angle, so that the sighting device does not damage a human body under the action of the clamping jaw; the connecting rod (42) of the sighting device is provided with an angle according to a certain proportion, so that the sighting device can smoothly extend into the space between the femur (8) and the tibia (9).
Drawings
Fig. 1 is a schematic front structural view of a specific embodiment of the present invention in which each locking portion is in a locking state.
Fig. 2 is a schematic view of a back structure of a specific embodiment of the present invention in which each locking portion is in a relaxed state.
Fig. 3 is a schematic structural view of an arc positioning hook target according to an embodiment of the present invention.
Fig. 4 is a schematic view of the bone tunnel positioning and aiming structure according to an embodiment of the present invention.
Description of the drawings: 1-drill guiding sleeve, 2-sighting device handle, 3-fastening screw, 4-sighting device, 5-shaft coupling cam, 6-fastening knob, 7-2.4mm gram type needle, 8-femur and 9-tibia; 11-round head, 12-end surface of drill bushing, 13-bushing body, 14-tip part, 21-square tunnel and 22-base through hole; 23-U type tunnel; 24-arc slide rail; 25-front of the arc-shaped slide rail; 26-arc groove; 27-the reverse side of the arc-shaped slide rail; 29-a base; 41-arc positioning hook; 42-connecting rod; 43-a collar; 44-aimer dorsal side; a 45-T shaped slot; 51-pilot drill
Detailed Description
In order to clearly understand the technical contents of the present invention, the following embodiments will be described with reference to the accompanying drawings and examples:
it should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are illustrative only, and are not intended to limit the scope of the invention, which is defined by the claims, since the same may be understood and read by those skilled in the art, it is not intended to limit the scope of the invention to the exact construction and operation, and any modifications in structure, changes in proportions, or adjustments in size, can be made without departing from the spirit and scope of the invention.
As shown in figures 1-4, the bone tunnel positioning device for reconstruction of knee joint anterior cruciate ligament injury comprises a drill guide sleeve 1, an aiming device handle 2 and an aiming device 4, wherein the drill guide sleeve 1 can be connected to the base of the aiming device handle 2 in a sliding mode in a straight line mode according to X-Y, and the aiming device 4 can be connected to an arc-shaped sliding rail 24 in a sliding mode.
A pilot drill 51 is arranged in the through hole of the pilot drill sleeve 1, so that the pilot drill 51 can smoothly pass through the through hole, the pilot drill 51 is a K-shaped needle 7, and the K-shaped needle 7 is an instrument used in a conventional operation; the sleeve body 13 of the drill guide sleeve 1 can penetrate through the base through hole 22 of the sighting device handle 2 and linearly slide according to X-Y.
The sighting device handle 2 comprises a base 29 and an arc-shaped sliding rail 24, wherein a base through hole 22 is formed in the base 29, the drill guide sleeve 1 can penetrate through the base through hole 22, and the positioning effect of drilling a bone tunnel is achieved after the sighting device 4 is adjusted to a proper angle; the base 29 is provided with a square tunnel 21 and is connected with the base through hole 22; the front surface of the base 29 is provided with a U-shaped tunnel 23 and is connected with the square tunnel 21; the front surface 25 of the arc-shaped slide rail is engraved with an angle line and a degree, so that the correct angle and direction can be conveniently read and selected during the operation; the reverse surface 27 of the arc-shaped sliding rail is provided with an arc-shaped groove 26, and an angle line and a degree are engraved in the arc-shaped groove 26, so that the correct angle and direction can be conveniently read and selected during the operation.
The sighting device 4 comprises an arc positioning hook 41, a connecting rod 42 and a sleeve ring 43; the lantern ring 43 is provided with a T-shaped groove 45 and penetrates through the arc-shaped sliding rail 24 of the sighting device handle 2, a threaded hole is formed in the T-shaped groove 45 and corresponds to the arc-shaped groove 26 in the reverse surface 27 of the arc-shaped sliding rail; the arc-shaped slide rail 24 passes through a T-shaped groove (45) of the sighting device 4 so that the sighting device moves along the arc-shaped slide rail 24.
A location bone tunnel device for knee joint anterior cruciate ligament damage is rebuild still be provided with fastening screw 3, fastening screw 3 passes through the screw hole that is equipped with in the T-slot 45, adopts the screw mode of screwing to get into arc recess 26 and withstands the inner face in order to reach the fixed action, fastening screw 3 passes through the screw hole that is equipped with in the T-slot 45, adopts the screw mode of screwing to get into arc recess 26 side in order to reach limiting displacement.
The arc-shaped positioning hook 41 and the support of the connecting rod 42 extend into the tibial plateau to be clamped at the point C.
And a scale indicating line is arranged at the lantern ring 43 and is matched with the scale line on the front surface of the arc-shaped slide rail 24 to adjust the angle.
A location bone tunnel device for knee joint anterior cruciate ligament damage is rebuild still be provided with shaft coupling cam 5, shaft coupling cam 5 divide into oval boss, middle part cylinder and annular shaft coupling piece triplex, the major diameter of oval boss can be with the fixed drill bushing 1 that leads of situation that touches in rotatory in-process, the middle part cylinder penetrates U type tunnel 23 card in semicircle position, annular shaft coupling piece one end leads to threaded hole, and 6 thin end parts of fastening knob penetrate the screw hole, 6 middle part screw in screw holes of fastening knob, 6 thin end sides of fastening knob meet with the positive arc recess medial surface of base 29 of sight handle, reach to stir 6 rotatory shaft coupling cams of fastening knob 5 and fix or relax and lead drill bushing 1.
The drill guide sleeve 1 comprises a round head 11, a sleeve body 13 and a tip part 14, wherein the tip part 14 is contacted with a tibia (9), and the round head 11 is tapped with a small hammer to stabilize the path of the tunnel so as to facilitate the path stabilization during the bone tunnel drilling.
The utility model discloses a theory of operation: the base is provided with a square tunnel 21 and a U-shaped tunnel 23, is connected with the through hole and is connected with the coupling cam 5 to achieve the effect of linking and fastening the knob; the coupling cam 5 is provided with a threaded hole which can be connected with a fastening knob 6, and the fastening knob 6 is contacted with the side surface of the annular groove on the surface of the base of the sighting device handle through the threaded hole by the side surface of the thin end to form a limiting sliding effect, so that the function of tightening and loosening the drill guide sleeve 1 is achieved, and the connection and disconnection are not easy to occur; the head end of the sighting device is provided with a T-shaped groove, the bottom of the T-shaped groove is drilled with a threaded hole, the sliding rail part of the sighting device handle 2 is provided with an arc-shaped groove, the top end of the sliding rail of the sighting device handle 2 penetrates through the T-shaped groove of the sighting device, and the arc-shaped groove of the sliding rail coaxially corresponds to the threaded hole at the bottom of the T-shaped groove of the sighting device; the arc-shaped sliding rail of the sighting device handle 2 passes through the T-shaped groove of the sighting device, and in the connection state, the fastening screw passes through a threaded hole at the bottom of the T-shaped groove of the sighting device in a threaded connection mode and reaches the bottom of the arc-shaped groove of the arc-shaped sliding rail, so that the sighting device is limited in the connection state, and in addition, the elastic connection state of the sighting device handle and the sighting device is realized under the clockwise and anticlockwise knobs of the fastening screw; the arc-shaped positioning hook 41 of the sighting device forms a certain angle, so that the sighting device does not damage a human body under the action of the clamping jaw; the connecting rod 42 of the sighting device is provided with an angle according to a certain proportion, so that the sighting device can successfully extend into the space between the femur 8 and the tibia 9.
In an embodiment, as shown in fig. 1, 2 and 3, the present invention includes a drill guide sleeve 1, a sight handle 2, a fastening screw 3, a sight 4, a coupling cam 5 and a fastening knob 6. Wherein, the drill guide sleeve 1 is provided with a through hole along the X-Y direction, and the drill guide 51 can be inserted into the through hole along the X-Y direction to prop against the tibia 8 to start drilling a bone tunnel; the base of the sighting device handle 2 is provided with a through hole, the drill guide sleeve 1 can penetrate into the through hole according to the X-Y direction, the coupling cam 5 penetrates through a U-shaped tunnel on the surface of the base of the sighting device handle 2 to prop against the drill guide sleeve 1, and in the connection state, the fastening knob 6 is screwed into a threaded hole of the coupling cam 5 in a threaded connection mode, so that the side surface of the thin end part is connected with the inner side of an arc-shaped groove above the U-shaped tunnel of the sighting device handle 2, and therefore the limiting effect is achieved, and the tightness of the drill guide sleeve is adjusted.
4 ring cover positions of sight are equipped with the T-slot, 2 arc slide rail pointed ends of sight handle pass the T-slot under the connection status, fastening screw 3 passes with threaded connection's state the screw hole of T-slot bottom, just the tip side of fastening screw contacts with the arc recess side at the 2 arc slide rail backs of sight handle, thereby makes sight 4 is spacing in sight handle 2, and according to fastening knob's regulation reaches the elasticity effect.
The utility model discloses under above-mentioned composite state, arc location colludes 41 with certain angle probe into the juncture of thighbone 8 and shin bone 9, falls into C department, sight 4 adjusts suitable angle with the mode that removes on sight 2 arc slide rails, and confirm screw fastening behind the suitable angle sight 4 with sight 2's connection. Wherein, the drill guide sleeve 1 is pushed in towards the X-Y direction, so that the tip part 14 of the drill guide sleeve is propped against the surface of the tibia 8, and a small hammer can be used for tapping the round end of the drill guide sleeve 1, thereby achieving the purpose of stability.
Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (9)
1. The utility model provides a location bone tunnel device for knee joint anterior cruciate ligament injury is rebuild which characterized in that, includes and leads drill bushing (1), sight handle (2) and sight (4), it is on the base of sight handle (2) that the straight line slip connection can be done according to X-Y to lead drill bushing (1), sight (4) slidable connect on arc slide rail (24).
2. The positioned bone tunneling apparatus for reconstruction of anterior cruciate ligament injury of knee joint according to claim 1, wherein: a pilot drill (51) is arranged in the through hole of the pilot drill sleeve (1), so that the pilot drill (51) can smoothly pass through the through hole, and the pilot drill (51) is a kirschner needle (7); the sleeve body (13) of the drill guide sleeve (1) can penetrate through the base through hole (22) of the sighting device handle (2) and linearly slide according to X-Y.
3. The positioned bone tunneling apparatus for reconstruction of anterior cruciate ligament injury of knee joint according to claim 1, wherein: the sighting device handle (2) comprises a base (29) and an arc-shaped sliding rail (24), wherein a base through hole (22) is formed in the base (29), the drill guide sleeve (1) can penetrate through the base through hole (22), and the sighting device handle can achieve the positioning effect of drilling a bone tunnel after the sighting device (4) is adjusted to be at a proper angle; the base (29) is provided with a square tunnel (21) and is connected with the base through hole (22); the front surface of the base (29) is provided with a U-shaped tunnel (23) and is connected with the square tunnel (21); the arc-shaped slide rail (24) is provided with a front surface (25) of the arc-shaped slide rail and a back surface (27) of the arc-shaped slide rail, and the front surface (25) of the arc-shaped slide rail is carved with an angle line and a degree; an arc-shaped groove (26) is formed in the reverse side (27) of the arc-shaped sliding rail, and an angle line and an angle degree are carved in the arc-shaped groove (26).
4. The positioned bone tunneling apparatus for reconstruction of anterior cruciate ligament injury of knee joint according to claim 1, wherein: the sighting device (4) comprises an arc-shaped positioning hook (41), a connecting rod (42) and a lantern ring (43); the lantern ring (43) is provided with a T-shaped groove (45) and penetrates through the arc-shaped sliding rail (24) of the sighting device handle (2), a threaded hole is formed in the T-shaped groove (45) and penetrates through the back side (44) of the sighting device (4) to correspond to the arc-shaped groove (26) in the reverse side (27) of the arc-shaped sliding rail; the arc-shaped sliding rail (24) penetrates through the T-shaped groove (45) of the sighting device (4) to enable the sighting device to move along the arc-shaped sliding rail (24).
5. The positioned bone tunneling apparatus for reconstruction of anterior cruciate ligament injury of knee joint according to claim 4, wherein: a location bone tunnel device for knee joint anterior cruciate ligament injury is rebuilt still be provided with fastening screw (3), fastening screw (3) are through the screw hole that is equipped with in T-slot (45), adopt the mode that the screw thread was screwed to get into arc recess (26) and withstand the inner face in order to reach the fixed action, fastening screw (3) are through the screw hole that is equipped with in T-slot (45), adopt the mode that the screw thread was screwed to get into arc recess (26) side in order to reach limiting displacement.
6. The positioned bone tunneling apparatus for reconstruction of anterior cruciate ligament injury of knee joint according to claim 4, wherein: the arc-shaped positioning hook (41) and the support of the connecting rod (42) extend into the tibial plateau to clamp the point C.
7. The positioned bone tunneling apparatus for reconstruction of anterior cruciate ligament injury of knee joint according to claim 4, wherein: the lantern ring (43) is provided with scale indicating lines, and the angle is adjusted by matching with the scale lines on the front surface of the arc-shaped sliding rail (24).
8. The positioned bone tunneling apparatus for reconstruction of anterior cruciate ligament injury of knee joint according to claim 1, wherein: a location bone tunnel device for knee joint anterior cruciate ligament damage is rebuild still be provided with shaft coupling cam (5), shaft coupling cam (5) divide into oval boss, middle part cylinder and annular shaft coupling piece triplex, the major diameter of oval boss can be fixed with the situation that touches at rotatory in-process leads drill bushing (1), the middle part cylinder penetrates U type tunnel (23) card in semicircle position, annular shaft coupling piece one end leads to threaded hole, and fastening knob (6) tip position penetrates the screw hole, and fastening knob (6) middle part screw in screw hole, fastening knob (6) tip side meets with the positive arc recess medial surface of base (29) of sight handle, reaches to stir fastening knob (6) rotation shaft coupling cam (5) and fixes or loosen and lead drill bushing (1).
9. The positioned bone tunneling apparatus for reconstruction of anterior cruciate ligament injury of knee joint according to claim 1, wherein: lead drill bushing (1) including button head (11), cover body (13) and tip position (14) triplex, terminal surface (12) of button head (11) are equipped with a hole and pass through tip position (14), and tip position (14) touch in shin bone (9) to the stability of route when the tip (12) of small hammer tapping button head (11) are convenient for bore the bone tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586822.0U CN210330665U (en) | 2019-04-26 | 2019-04-26 | Positioning bone tunnel device for reconstruction of injury of anterior cruciate ligament of knee joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586822.0U CN210330665U (en) | 2019-04-26 | 2019-04-26 | Positioning bone tunnel device for reconstruction of injury of anterior cruciate ligament of knee joint |
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| CN210330665U true CN210330665U (en) | 2020-04-17 |
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| CN201920586822.0U Active CN210330665U (en) | 2019-04-26 | 2019-04-26 | Positioning bone tunnel device for reconstruction of injury of anterior cruciate ligament of knee joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370115A (en) * | 2020-11-16 | 2021-02-19 | 中国人民解放军海军军医大学第一附属医院 | Front fork positioner |
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2019
- 2019-04-26 CN CN201920586822.0U patent/CN210330665U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370115A (en) * | 2020-11-16 | 2021-02-19 | 中国人民解放军海军军医大学第一附属医院 | Front fork positioner |
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