CN211022936U - Reconstruction device for anterior crossing ligament and ligament bone tract of knee joint - Google Patents
Reconstruction device for anterior crossing ligament and ligament bone tract of knee joint Download PDFInfo
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- CN211022936U CN211022936U CN201922021825.2U CN201922021825U CN211022936U CN 211022936 U CN211022936 U CN 211022936U CN 201922021825 U CN201922021825 U CN 201922021825U CN 211022936 U CN211022936 U CN 211022936U
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- main body
- sleeve
- fixing frame
- fixing
- reconstruction device
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Abstract
The utility model provides a device is rebuild to alternately ligament bone way before knee joint, include: the fixing frame comprises a fixing frame main body and a handle which is integrally arranged with the fixing frame main body, and the fixing frame main body is provided with a mounting hole; an adjusting frame: the adjustable bracket comprises an adjusting bracket main body, wherein the adjusting bracket main body comprises a mounting end and a fixed end which are arranged at an included angle, the mounting end is mounted on a handle of a fixed bracket, and the head of the fixed end faces a mounting hole of the fixed bracket; guiding and fixing the sleeve: the guide fixing sleeve is arranged on the fixing frame after penetrating through the mounting hole of the fixing frame. Adopt the utility model provides a bone way rebuilds device can accurately carry out rectangle bone way and rebuild easy operation. Can reduce the operation time, simplify the operation and improve the clinical curative effect of the reconstruction of the anterior cruciate ligament.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a knee joint anterior crossing ligament bone reconstruction device for orthopedic surgery.
Background
Arthroscopic anterior cruciate ligament reconstruction is one of the most common orthopedic procedures, and currently, circular bone reconstruction technology is mostly applied. But the circular bone tunnel has its limitations. Even the circular bone tunnel prepared according to the intraoperatively measured insertion area of the anterior cruciate ligament can only recover 70% of the insertion area of the tibia and 79% of the insertion area of the femur, so that the normal knee joint kinematics cannot be recovered by using the circular bone tunnel technique, the postoperative tibia is subjected to the external rotation, the patella is subjected to the external rotation, the external inclination and the external movement are increased, the symptom improvement rate accepted by the patient is 50%, and the failure rate is still as high as 10-20%.
For example, patent publication No. CN201426740Y discloses a positioner for reconstructing cruciate ligament behind knee joint, a guide positioner is arranged in a guide positioning seat, a guide pin positioning tube is arranged in the guide positioner, during surgery, a guide pin is inserted into the guide pin positioning tube, an electric drill head for fixing the guide pin tightly abuts against the tail end of the guide pin positioning tube, the guide pin positioning tube is inserted into the guide positioner, and a preset position is accurately drilled out through the guide pin. Due to the limitation of the positioning and guiding structure, the reconstruction positioner can only adopt the guide pin to reconstruct the bone tunnel and is only suitable for reconstructing the small-area bone tunnel.
A reconstruction locator structure of the same principle and effect is also disclosed in patent publication CN 208756143U.
With the intensive research on the anatomy of the anterior cruciate ligament, the theory of "band-like structure" of the anterior cruciate ligament and the concept of "direct and indirect fibers" have been gradually proposed, according to which the rectangular bone tunnel is designed with the crest and posterior margin of the resident on the femoral side, while the rectangular bone tunnel is designed with the intercondylar ridge and anterior tibial ridge on the tibial side, which are both in accordance with the anatomical requirements; biomechanical studies also confirm that the rectangular bone tunnel reconstruction can restore the anterior crossing function, well control the anterior movement and rotation of the tibia, and is superior to the traditional circular bone tunnel technology, and a few clinical scholars try the rectangular bone tunnel technology, but the rectangular bone tunnel technology is drilled firstly and then gradually trimmed, so that the risks of troublesome operation, long time consumption of the operation and inaccuracy of the bone tunnel are caused.
Disclosure of Invention
The invention aims to provide a bone tunnel reconstruction device capable of accurately reconstructing a rectangular bone tunnel, aiming at the problems that a bone tunnel reconstruction system in the prior art has complex operation and low accuracy in reconstructing the rectangular bone tunnel.
In order to achieve the purpose, the invention adopts the technical scheme that:
knee joint anterior crossing ligament bone canal reconstruction device includes:
the fixing frame comprises a fixing frame main body and a handle which is integrally arranged with the fixing frame main body, and the fixing frame main body is provided with a mounting hole;
an adjusting frame: the adjustable bracket comprises an adjusting bracket main body, wherein the adjusting bracket main body comprises a mounting end and a fixed end which are arranged at an included angle, the mounting end is mounted on a handle of a fixed bracket, and the head of the fixed end faces a mounting hole of the fixed bracket;
guiding and fixing the sleeve: the guide fixing sleeve is arranged on the fixing frame after penetrating through the mounting hole of the fixing frame.
Optionally, the reconstruction apparatus further includes:
the drill guide sleeve comprises a main body part and a head part, the shape of the main body part is matched with the shape of the guide sleeve cavity, so that the drill guide sleeve can be inserted into the guide fixing sleeve, and the width of the head part is greater than the width of the section of the guide sleeve cavity, so that the head part of the drill guide sleeve can be clamped at the cavity opening of the guide sleeve cavity; and a drill guide hole is arranged along the head part and the main body part of the drill guide sleeve in a penetrating way.
Optionally, the reconstruction apparatus further includes:
the Kirschner wire sleeve comprises a main body part and a head part, the shape of the main body part is matched with the shape of the guide sleeve cavity, so that the Kirschner wire sleeve can be inserted into the guide fixing sleeve, and the width of the head part is greater than the width of the section of the guide sleeve cavity, so that the head part of the Kirschner wire sleeve can be clamped at the cavity opening of the guide sleeve cavity; and a Kirschner wire hole is arranged along the head part and the main body part of the drill guide sleeve in a penetrating way.
Optionally, the length of the kirschner wire sleeve main body part is greater than that of the drill guide sleeve main body part, and the aperture of the drill guide hole is greater than that of the kirschner wire hole.
Optionally, a plurality of kirschner wire holes are arranged on the kirschner wire sleeve main body portion, and drill guide holes corresponding to the positions and the number of the kirschner wire holes are arranged on the drill guide sleeve main body portion.
Optionally, the penetrating end of the guide fixing sleeve through the fixing frame mounting hole is of a tooth-shaped structure.
Optionally, auxiliary kirschner wire holes are formed in two side faces of the guide fixing sleeve in the axial direction.
Optionally, the reconstruction apparatus further includes:
the adjusting mechanism comprises a knob and an adjusting gear which is integrally arranged with the knob;
and the adjusting gear extends into the mounting hole of the fixing frame along the side wall of the fixing frame body and is meshed with the positioning tooth grooves.
Optionally, an elastic buckle is arranged on the fixing frame main body, the head of the buckle extends into the fixing frame mounting hole, and the elastic buckle can be clamped with the positioning tooth groove when being pressed down.
Optionally, the reconstruction device further comprises a osteotome, the osteotome comprises a handle and a cutting head mounted on the handle, the cutting head comprises an axially extending cutting cavity, and the shape of the cutting cavity matches with the shape of the guide sleeve cavity, so that the cutting head can be inserted into the fixed guide sleeve.
Optionally, a mounting groove is formed along the side wall of the handle of the fixing frame, a fixing groove is formed along the side wall of the mounting end of the adjusting frame, and a locking knob is rotatably mounted on the handle of the fixing frame; the mount handle is inserted along the mounting groove to the alignment jig installation end, and the locking head of locking knob passes the handle lateral wall, and when screwing, can block in the alignment jig fixed slot.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a bone path reconstruction device which is suitable for a rectangular bone path reconstruction knee joint anterior cruciate ligament surgery. Compared with the bone path positioner in the prior art, the bone path positioner can reduce the operation time, simplify the operation and accurately position the bone path. Biomechanics has proved that the rectangular bone passage can restore the function of the anterior cruciate ligament better than the traditional round bone passage technology, so the clinical curative effect of the reconstruction of the anterior cruciate ligament can be improved by applying the system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a main body of a bone reconstruction device;
FIG. 2 is a schematic view of a fixing frame;
FIG. 3 is a schematic view of the structure of the adjusting frame;
FIG. 4 is a schematic structural view of a fixed guide sleeve;
FIG. 5 is a schematic structural view of the Kirschner wire sheath and the bone canal reconstruction device;
FIG. 6 is a schematic view of the drill guide sleeve and the bone reconstruction device;
FIG. 7 is a schematic view of the osteotome and the bone canal reconstruction device;
FIG. 8 is a schematic view of a fixing frame;
1-a fixing frame, 101-a fixing frame main body, 102-a handle, 103-a mounting hole, 104-a mounting groove, 105-a through hole, 106-a locking knob mounting hole, and 107-an elastic buckle;
2-adjusting bracket, 201-mounting end, 2011-fixing groove, 202-fixing end, 2021-fixing end head;
3-a guide fixing sleeve, 301-a guide sleeve cavity, 302-an auxiliary Kirschner wire hole, 303-a sawtooth and 304-a tooth groove;
4-locking the knob;
5-Kirschner wire sleeve, 501-main body part, 502-head part;
6-drilling a guide sleeve, 601-drilling a guide sleeve main body part, 602-drilling a guide sleeve head part, 603-drilling a guide hole;
7-a knob;
8-osteotome, 801-handle of a knife, 802-tool bit.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "disposed on," "connected to" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "upper", "lower", "axial", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
The invention provides a knee joint anterior cruciate ligament bone path reconstruction device which can be used for knee joint anterior cruciate ligament surgery, and is particularly suitable for surgery in which a tibia lateral dead point is generally oblong, the length-width ratio of the tibia lateral dead point is greater than 1.4, and rectangular bone path reconstruction is required.
Referring to fig. 1, the main structure of the reconstruction device for anterior cruciate ligament bone tract of knee joint comprises:
the fixing frame 1, the structure of which refers to fig. 2, includes a fixing frame main body 101 and a handle 102 integrally disposed with the fixing frame main body 101, and a mounting hole 103 is disposed on the fixing frame main body 101.
The adjusting frame 2: referring to fig. 3, the adjusting bracket comprises an adjusting bracket body, wherein the adjusting bracket body comprises an installation end 201 and a fixed end 202 which are arranged in an angle, and in the embodiment, the installation end 201 and the fixed end 202 are in a V shape; the mounting end 201 is mounted on the handle 102 of the mount, and the fixed end portion 2021 is hook-shaped and faces the mount mounting hole 103.
And (3) guiding and fixing the sleeve: the structure of the guide sleeve is shown in fig. 4, and the guide sleeve cavity 301 with a rectangular cross section is arranged on the fixing frame after penetrating through the mounting hole 103 of the fixing frame.
In this embodiment, the mounting structure of the fixing frame 1 and the adjusting frame 2 is as follows: the side wall of the fixed frame handle 102 is provided with a mounting groove 104, the side wall of the adjusting frame mounting end 201 is provided with a fixing groove 2011, and the fixed frame handle 102 is rotatably provided with a locking knob 4; the mounting end 202 of the adjusting bracket is inserted into the handle 102 of the fixing bracket along the mounting groove 104, and the locking head of the locking knob 4 passes through the mounting hole 106 of the locking knob on the side wall of the handle, and can be clamped in the fixing groove 2011 of the adjusting bracket when being screwed, so as to lock the mounting structure of the fixing bracket 1 and the adjusting bracket 2. According to the physical condition of the patient, the locking knob 4 can be loosened and the position of the adjusting frame 2 relative to the fixing frame 1 can be adjusted according to the requirement, so that a better fixing effect can be realized. The handle 102 is further provided with through holes 105 in an array, and the main function of the through holes 105 is to reduce the weight of the handle 102 for facilitating the holding operation.
The reconstruction device and the guide fixing sleeve 3 are matched with the adjusting frame 2 to play a fixing role together. The knee joint is clamped between the head part 2021 of the fixed end of the adjusting bracket and the guide fixing sleeve 3, and instruments such as a hollow drill, a osteotome and the like can be inserted from the guide sleeve cavity 301 for operation.
In order to accurately position the working position of the hollow drill, the reconstruction device is further designed in a lower way as another preferred embodiment.
The reconstruction apparatus further comprises:
the Kirschner wire sleeve 5 comprises a main body part 501 and a head part 502, the shape of the main body part 501 is matched with that of the guide sleeve cavity 301 so that the Kirschner wire sleeve 5 can be inserted into the guide fixing sleeve 3, and the width of the head part is larger than that of the section of the guide sleeve cavity so that the head part of the Kirschner wire sleeve can be clamped at the cavity opening of the guide sleeve cavity 301; a k-wire hole 503 is provided through the k-wire cover head 501 and the body 502. Fig. 5 is a schematic view of the kirschner wire sleeve 5 and the reconstruction device.
The drill guide sleeve 6 comprises a guide sleeve main body part 601 and a guide sleeve head part 602, the shape of the main body part 601 is matched with the shape of the guide sleeve cavity 301, so that the drill guide sleeve 6 can be inserted into the guide fixing sleeve 3, and the width of the guide sleeve head part 602 is larger than the width of the section of the guide sleeve cavity 301, so that the drill guide sleeve head part 602 can be clamped at the cavity opening of the guide sleeve cavity 301; a drill guide hole 603 is provided through the drill guide sleeve head portion 602 and the body portion 601. The drill guide sleeve 6 and the reconstruction device are combined together in a schematic way with reference to fig. 6.
Furthermore, since the kirschner wire is longer, the flexibility is weaker, the rigidity of the hollow drill is stronger, and the diameter of the kirschner wire is smaller than that of the hollow drill, in order to increase the applicability of the kirschner wire sleeve 5 and the drill guide sleeve 6, the length of the kirschner wire sleeve main body part 501 is longer than that of the drill guide sleeve main body part 601, and the diameter of the drill guide hole 603 is larger than that of the kirschner wire hole 503.
Further, in order to improve the efficiency of the operation, a plurality of kirschner wire holes 503 are arranged on the kirschner wire sleeve main body portion 501, and drill guide holes 603 corresponding to the positions and the number of the kirschner wire holes 503 are arranged on the drill guide sleeve main body portion 601. During operation, a plurality of hollow drill bits can be adopted to work together.
Furthermore, after the core drill operation is completed, the bone tissue needs to be removed. In order to fit the rectangular bone path and preferably to lift the bone tissue, the reconstruction device further comprises a osteotome 8 comprising a handle 801 and a cutting head 802 mounted on the handle 801, the cutting head 802 comprising an axially extending cutting cavity having a shape matching the shape of the guide housing cavity such that the cutting head 802 is insertable into the stationary guide housing. The structure of the bone knife 8 matched with the reconstruction device is schematically shown in figure 7.
Furthermore, in order to facilitate the positioning of the operation, auxiliary kirschner wire holes 302 are arranged on two sides of the guide fixing sleeve 3 along the axial direction. Before the guide fixing sleeve 3 is installed, the Kirschner wire is firstly inserted into an operation position through the auxiliary Kirschner wire hole 302 for primary positioning, and then the guide fixing sleeve 3 is inserted and fixed for operation. After the preliminary positioning is finished and the guide fixing sleeve 3 is fixed, the kirschner wire for auxiliary positioning can be taken away.
Furthermore, in order to enhance the inserting and fixing effect of the guide fixing sleeve 3, the penetrating end of the guide fixing sleeve 3 through the fixing frame mounting hole 103 is of a tooth-shaped structure, i.e., a circle of saw teeth 303 is arranged along the end surface of the guide sleeve cavity 301. The structure of the saw teeth 303 is more advantageous for insertion and fixation when inserting the guide anchor 3 in the direction of the ligament.
During the insertion of the guide fixing sleeve 3, manual adjustment and fixing are required. In order to facilitate the adjustment and fixing of the guide harness 3, the reconstruction device further comprises:
an adjustment mechanism, see fig. 8, comprising a knob 7 and an adjustment gear (not visible in the figures) provided integrally with the knob 7;
and positioning tooth grooves 304 are arranged along the upper end surface of the guide fixing sleeve 3 in the axial direction, and the adjusting gear extends into the fixing frame mounting hole along the side wall of the fixing frame main body 101 and is meshed with the positioning tooth grooves 304. In the preparation stage, after the auxiliary positioning kirschner wire is inserted, the forward transmission knob 7 is screwed into the guide fixing sleeve 3 in the ligament direction until the guide fixing sleeve is inserted into the bone and accurately fixed; after the operation is finished, the knob 7 is reversed, and the guide fixing sleeve 3 is screwed outwards.
Furthermore, the fixing frame main body 101 is provided with an elastic buckle 107, the head of the elastic buckle 107 extends into the fixing frame mounting hole 103, and when the elastic buckle 107 is pressed down, the elastic buckle can be clamped with the positioning tooth groove 304 to fix the guiding fixing sleeve 3.
The method of operation of the reconstruction device for performing surgery using the above preferred embodiment will be described in detail below.
When the reconstruction device is used for operation, after the guide fixing sleeve 3 is positioned, the Kirschner wire sleeve 5 is firstly inserted into the guide sleeve cavity 301, the Kirschner wire is inserted through the Kirschner wire hole 503, the pillowcase 5 can be drawn out, the Kirschner wire is left in bone tissues, and the Kirschner wire is mainly used for guiding and positioning of a subsequent hollow drill. Subsequently, the drill guide sleeve 6 is inserted, the hollow drill bit is inserted along the kirschner wire through the drill guide hole 603, and the tail of the drill can drill into the bone under the centering action of the drill guide sleeve and the guiding action of the kirschner wire. After the hollow drill is drilled, the osteotome 8 is inserted to remove bone tissue.
The bone path reconstruction device provided by the invention can be used for accurately reconstructing the rectangular bone path and is simple to operate. Can reduce the operation time, simplify the operation and improve the clinical curative effect of the reconstruction of the anterior cruciate ligament.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Knee joint anterior crossing ligament bone canal rebuilding device, its characterized in that includes:
the fixing frame comprises a fixing frame main body and a handle which is integrally arranged with the fixing frame main body, and the fixing frame main body is provided with a mounting hole;
an adjusting frame: the adjustable bracket comprises an adjusting bracket main body, wherein the adjusting bracket main body comprises a mounting end and a fixed end which are arranged at an included angle, the mounting end is mounted on a handle of a fixed bracket, and the head of the fixed end faces a mounting hole of the fixed bracket;
guiding and fixing the sleeve: the guide fixing sleeve is arranged on the fixing frame after penetrating through the mounting hole of the fixing frame.
2. The anterior cruciate ligament bone reconstruction device of claim 1, wherein the reconstruction device further comprises:
the drill guide sleeve comprises a main body part and a head part, the shape of the main body part is matched with the shape of the guide sleeve cavity, so that the drill guide sleeve can be inserted into the guide fixing sleeve, and the width of the head part is greater than the width of the section of the guide sleeve cavity, so that the head part of the drill guide sleeve can be clamped at the cavity opening of the guide sleeve cavity; and a drill guide hole is arranged along the head part and the main body part of the drill guide sleeve in a penetrating way.
3. The anterior cruciate ligament bone reconstruction device of claim 2, wherein the reconstruction device further comprises:
the Kirschner wire sleeve comprises a main body part and a head part, the shape of the main body part is matched with the shape of the guide sleeve cavity, so that the Kirschner wire sleeve can be inserted into the guide fixing sleeve, and the width of the head part is greater than the width of the section of the guide sleeve cavity, so that the head part of the Kirschner wire sleeve can be clamped at the cavity opening of the guide sleeve cavity; and a kirschner wire hole is arranged along the head part and the main body part of the kirschner wire sleeve in a penetrating way.
4. The anterior cruciate ligament duct reconstruction device of claim 3, wherein the length of the Kirschner wire sleeve body portion is greater than the length of the drill guide sleeve body portion, and the bore diameter of the drill guide hole is greater than the bore diameter of the Kirschner wire hole.
5. The device of claim 1, wherein the guiding sheath has a toothed structure at the end thereof protruding through the mounting hole of the fixation frame.
6. The anterior cruciate ligament duct reconstruction device of claim 1, wherein auxiliary kirschner wire holes are provided on both sides of the guide fixing sleeve in the axial direction.
7. The anterior cruciate ligament bone reconstruction device of claim 1, wherein the reconstruction device further comprises:
the adjusting mechanism comprises a knob and an adjusting gear which is integrally arranged with the knob;
and the adjusting gear extends into the mounting hole of the fixing frame along the side wall of the fixing frame body and is meshed with the positioning tooth grooves.
8. The anterior cruciate ligament duct reconstruction device according to claim 7, wherein the mount body is provided with an elastic clip, the head of the clip extends into the mount mounting hole, and the elastic clip can be engaged with the positioning tooth groove when being pressed down.
9. The anterior cruciate ligament duct reconstruction device of claim 1, wherein the reconstruction device further comprises a osteotome, the osteotome comprising a handle and a cutting head mounted on the handle, the cutting head comprising an axially extending cutting cavity, the cutting cavity having a shape matching the shape of the guide sleeve cavity such that the cutting head is insertable into the fixed guide sleeve.
10. The knee anteroposterior ligament duct reconstruction device according to claim 1, wherein a mounting groove is formed along a side wall of the handle of the fixing frame, a fixing groove is formed along a side wall of the fixing end of the adjusting frame, and a locking knob is rotatably mounted on the handle of the fixing frame; the mount handle is inserted along the mounting groove to the alignment jig stiff end, and the locking head of locking knob passes the handle lateral wall, and when screwing, can block in the alignment jig fixed slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922021825.2U CN211022936U (en) | 2019-11-20 | 2019-11-20 | Reconstruction device for anterior crossing ligament and ligament bone tract of knee joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922021825.2U CN211022936U (en) | 2019-11-20 | 2019-11-20 | Reconstruction device for anterior crossing ligament and ligament bone tract of knee joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211022936U true CN211022936U (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922021825.2U Expired - Fee Related CN211022936U (en) | 2019-11-20 | 2019-11-20 | Reconstruction device for anterior crossing ligament and ligament bone tract of knee joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211022936U (en) |
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2019
- 2019-11-20 CN CN201922021825.2U patent/CN211022936U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210608 Address after: 050000 No. 139 Ziqiang Road, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: THE THIRD HOSPITAL OF HEBEI MEDICAL University Address before: 266000 room 302-a, building 19, optical valley software park, 396 Emeishan Road, Huangdao District, Qingdao City, Shandong Province Patentee before: Wang Fei |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20211120 |