CN211066868U - Femoral head medulla core decompression reduction instrument - Google Patents
Femoral head medulla core decompression reduction instrument Download PDFInfo
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- CN211066868U CN211066868U CN201921811424.0U CN201921811424U CN211066868U CN 211066868 U CN211066868 U CN 211066868U CN 201921811424 U CN201921811424 U CN 201921811424U CN 211066868 U CN211066868 U CN 211066868U
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- femoral head
- trepan
- fixator
- side core
- core device
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Abstract
The utility model discloses a femoral head medullary core decompression resetting apparatus, including the guide pin, concentric shaft maintenance spare, the trepan, the necrotic area abrasive drilling, the abrasive drilling side heart ware, the bone grafting obturator, articular surface restorer, the fixer that resets, the utility model discloses can make femoral head necrosis obtain effective treatment through femoral head medullary core decompression in femoral head necrosis early, cooperation bone grafting + PRP technique, the organ of self has been kept, prognosis is good, can accurate location, reduce the destruction to healthy tissue, the healthy bone of planting easily survives to can reset the articular surface that sinks, be favorable to the patient to alleviate or eliminate pain, resume or improve the joint function, can effectively improve early femoral head necrosis, make the operation more simply easily operate, the operation expense is low, the patient resumes soon, possesses good social value, basic level hospital also can carry out, easily promotes.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to femoral head medulla core decompression resetting instrument.
Background
Along with the improvement of living standard of people, osteoarticular diseases, particularly femoral head necrosis, are more and more common, the avascular necrosis of the femoral head is a progressive destructive disease, which is better to be found in adults of 20-50 years old, if active treatment is not adopted, the illness state of most patients can continue to progress, finally, the collapse of subchondral bones and joint surfaces is caused, the daily living capacity is limited or even lost, artificial hip joint replacement is needed, and huge physical pain and heavy economic burden are caused to the patients. At present, no specific medicine treatment or uniform operation treatment method for early femoral head necrosis exists, and most of operations cannot be accurately positioned and repaired due to increased trauma. The medullary core decompression can relieve the pain symptom of a femoral head patient by reducing high intraosseous pressure, but the existing medullary core decompression affects the quality of operation completion due to unstable positioning of the guide pin, and has certain difficulty in operation, a necrotic area has poor osteogenesis effect, seriously damages the femoral head of the patient, a necrotic area has poor bone clearing effect, and the prognosis of the patient is often poor.
Disclosure of Invention
The utility model aims at the treatment mode that exists is single in the early treatment method to current femoral head necrosis, need carry out artifical hip joint replacement, traditional operation treatment wound is big, unable accurate positioning repair, destroy greatly to femoral necrosis area, harm self femoral head, necrosis district's dead bone is clear away the effect poor, the articular surface that can not collapse resets, the operation mode complicacy is difficult to promote the scheduling problem provide one kind can furthest clear away the necrotic bone on the femoral head, through combining together with PRP (platelet rich plasma) technique and using the promotion femoral necrosis district osteogenesis that can be the biggest, keep self femoral head, can most effectively clear away the dead bone, be favorable to the early patient of femoral head necrosis to eliminate the femoral head medulla ossium decompression reset apparatus that painful recovery joint function was retrieved.
The purpose of the invention is realized by the following technical scheme: a femoral head medullary core decompression reduction resetting instrument comprises a guide pin, a concentric shaft maintaining part, a trepan, a necrotic area abrasive drill, an abrasive drill side core device, a bone grafting filler, a joint surface restorer and a joint surface restoration fixer, wherein the guide pin is a needle-shaped body comprising a guide pin body part and a guide pin tip part
The concentric shaft maintaining piece is a circular tubular body provided with a guide pin hole, and the diameter of the guide pin hole is adapted to the guide pin body part;
the trepan is in a circular tube shape, one end of the trepan is provided with a handheld part, and the other end of the trepan is provided with a ring of saw teeth;
the necrotic area abrasive drill comprises an abrasive drill rod and an abrasive drill head, wherein the abrasive drill head is an ellipsoidal drill head, and the size of the abrasive drill head can pass through the pipe cavity of the trepan body;
the grinding drill side core device comprises a side core device hand-held part and a side core device body part, the side core device hand-held part is convenient for an operator to grasp, the side core device body part is in a semi-circular rod shape, one end of the side core device body part is provided with a side core device head part, the other end of the side core device body part is connected with the side core device hand-held part, the front end of the side core device head part is provided with a conical surface, and the upper part of the side core device head part is provided with a clamping groove which is adaptive to the diameter of a grinding;
the bone grafting filler is cylindrical, the diameter of the bone grafting filler is matched with the diameter of the inside of the trepan body, and two ends of the bone grafting filler are in a bullet shape;
the joint surface restorer is in the shape of a round rod, one end of the joint surface restorer is provided with a knocking part, the other end of the joint surface restorer is provided with a restoring part, the knocking part is a cuboid, the contact surface of the restoring part and the bone joint is a curved surface with the same curvature as that of a grinding drill bit, and the restoring part can be a channel formed after being screwed by a trepan;
the articular surface reduction fixator comprises a fixator handheld portion and a fixator body portion, the fixator handheld portion is convenient for an operator to grasp, the fixator body portion is cylindrical, a fixator conical surface is arranged at one end of the fixator body portion, the other end of the fixator body portion is connected with the fixator handheld portion, and fixing grooves with the same articular surface reduction fixator diameter are formed in the fixator body portion.
And the surfaces of the guide pin, the trepan, the necrotic area abrasive drill, the bone grafting filler and the articular surface restorer are provided with scale marks.
The handheld part is a conical pipe, the small end of the handheld part is connected with the trepan body, the inner diameter of the handheld part is the same as that of the trepan body, and reinforcing ribs are uniformly arranged on the outer surface of the handheld part.
The hand-held part of the bypass device is a curved bar.
The handheld part of the fixer is a round rod.
The outer surface of the concentric shaft maintaining piece is symmetrically provided with an oval depression so as to be convenient for an operator to grasp.
The surfaces of the left end and the right end of the bone grafting filler are symmetrically provided with oval depressions so as to be convenient for an operator to grasp.
The utility model has the advantages that: the utility model can remove necrotic bones on the femoral head to the maximum extent, can promote the osteogenesis of a femoral necrosis area to the maximum extent by combining with PRP (platelet rich plasma) technology, reserve the femoral head per se, can effectively remove the necrotic bones by abrasive drilling, grind the necrotic bones into fine and thick liquid bone fragments, is beneficial to discharging the bone fragments out of the body under flushing, and can enlarge the cavity gap of the necrotic area to reduce the residual necrotic bones, simultaneously can accurately position, reduce the damage to healthy tissues, has better prognosis, can easily survive the planted healthy bones, can reset the collapsed joint surfaces, is beneficial to relieving or eliminating pains of patients, and recovers or improves the functions of joints, through the application of the utility model, can effectively improve early necrosis, enables the operation to be simpler and easy to operate, has low operation cost, fast recovery of the patients, has good social value, and can be implemented by primary hospitals, is easy to popularize.
Drawings
Fig. 1 is a perspective view of a guide pin.
Fig. 2 is a perspective view of a concentric shaft retainer.
Fig. 3 is a perspective view of the trepan.
Fig. 4 is a perspective view of a burr of the necrotic area.
Figure 5 is a perspective view of the drill side core.
Fig. 6 is a perspective view of the bone graft filler.
Fig. 7 is a perspective view of the articular surface restorer.
Fig. 8 is a perspective view of an articular surface reduction fixture.
Fig. 9 is a front view of the reduction joint fixator.
FIG. 10 is a schematic view of a necrotic area burr and burr side core in combination.
Fig. 11 is a schematic view of the combined use of the articular surface restorer and the articular surface restorer fixator.
Detailed Description
The technical solutions of the present invention are further described below with reference to fig. 1 to 11, but the present invention is not limited thereto, and modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Example 1
A femoral head medullary core decompression reduction resetting instrument comprises a guide pin 1, a concentric shaft maintaining part 2, a trepan 3, a necrotic area abrasive drill 4, an abrasive drill side core device 5, a bone grafting filler 6, a joint surface restorer 7 and a joint surface restoration fixer 8, wherein the guide pin 1 is a needle-shaped body comprising a guide pin body part 11 and a guide pin tip part 12
The concentric shaft maintaining part 2 is a circular tubular body provided with a guide pin hole 21, and the diameter of the guide pin hole 21 is adapted to the guide pin body part 11;
the trepan 3 is in a circular tube shape, one end of the trepan is provided with a handheld part 31, and the other end of the trepan is provided with a circle of annular saw teeth 33;
the dead zone abrasive drilling 4 comprises an abrasive drilling rod 41 and an abrasive drilling head 42, wherein the abrasive drilling head 42 is an ellipsoidal drilling head, and the size of the abrasive drilling head can pass through the pipe cavity of the trepan body 32;
the grinding drill side core device 5 comprises a side core device hand-held part 51 and a side core device body part 52, the side core device hand-held part 51 is convenient for an operator to grasp, the side core device body part is in a semi-circular rod shape, one end of the side core device body part is provided with a side core device head part 53, the other end of the side core device body part is connected with the side core device hand-held part 51, the front end of the side core device head part 53 is provided with a conical surface 56, and the upper part of the side core device head part 53 is provided with a clamping groove 57 with a diameter matched with that of the grinding drill;
the bone grafting filler 6 is cylindrical, the diameter of the bone grafting filler is matched with the inner diameter of the trepan body 32, and two ends of the bone grafting filler are in a bullet shape;
the articular surface restorer 7 is a round rod with one end provided with a knocking part 72 and the other end provided with a restoring part 73, the knocking part 72 is a cuboid, the contact surface of the restoring part 73 and the bone articular surface is a curved surface with the same curvature as that of the grinding drill 42, and the restoring part 73 can be a channel formed by screwing the trepan 3;
the articular surface reduction fixator 8 comprises a fixator handheld portion 81 and a fixator body portion 82, the fixator handheld portion 81 is convenient for an operator to grasp, the fixator body portion 82 is cylindrical, a fixator conical surface 83 is arranged at one end of the fixator body portion 82, the other end of the fixator body portion is connected with the fixator handheld portion 81, and a fixing groove 85 with the same diameter as that of the articular surface reduction fixator 7 is arranged on the fixator body portion 82.
And the surfaces of the guide pin 1, the trepan 3, the necrotic area abrasive drill 4, the bone grafting filler (6) and the articular surface restorer 7 are provided with scale marks.
The handheld part 31 is a conical tube, the small end of the handheld part is connected with the trepan body 32, the inner diameter of the handheld part is the same as that of the trepan body 32, and reinforcing ribs are uniformly arranged on the outer surface of the handheld part.
The said bypass hand-held part 51 is a curved bar.
The holder hand-held portion 81 is a round bar.
The outer surface of the concentric shaft maintaining piece 2 is symmetrically provided with an oval concave part so as to be convenient for an operator to grasp.
The surfaces of the left end and the right end of the bone grafting filler 6 are symmetrically provided with oval depressions so as to be convenient for an operator to grasp.
Example 2
The utility model provides a femoral head medullary core decompression resetting apparatus, includes guide pin 1, concentric shaft maintenance piece 2, trepan 3, necrotic area abrasive drilling 4, abrasive drilling side heart ware 5, bone grafting fills ware 6, articular surface restorer 7 and articular surface fixer 8 that resets, guide pin 1 is the spicule including guide pin somatic part (11) and guide pin point portion 12, uses guide pin 1 can be in the accurate location in femoral head surface, and the guide pin depth of inserting in the accurate grasp medullary core decompression art does benefit to patient's prognosis and goes back to the needle degree of depth
The concentric shaft maintaining piece 2 is a circular tube-shaped body provided with a guide pin hole 21, the diameter of the guide pin hole 21 is matched with that of the guide pin body 11, the damage of guide pin shaking to the thighbone is avoided, the pain of a patient is relieved, the circular saw 3 is in a circular tube shape, one end of the circular saw is provided with a handheld part 31, and the other end of the circular saw is provided with a circle of circular saw teeth 33; the annular saw 3 can be accurately positioned on the femur by using the concentric shaft maintaining device 2 together, the annular saw is prevented from shaking, accurately enters a dead zone and is accurately ground into a bone cavity, and damage to a healthy tissue is reduced;
the grinding drill side core device 5 comprises a side core device hand-held part 51 and a side core device body part 52, the side core device hand-held part 51 is convenient for an operator to grasp, the side core device body part is in a semi-circular rod shape, one end of the side core device body part is provided with a side core device head part 53, the other end of the side core device body part is connected with the side core device hand-held part 51, the front end of the side core device head part 53 is provided with a conical surface 56, and the upper part of the side core device head part 53 is provided with a clamping groove 57 with a diameter matched with that of the grinding drill; when used together with a grinding drill, the bone grinding drill can grind a femoral head dead bone area, enlarge the area of a dead space area clearing area, enlarge the area by 1.64 times, effectively clear the dead bone, make the ground bone slurry fine and smooth, facilitate the washing, facilitate the prognosis of patients,
the bone grafting filler 6 is cylindrical, the diameter of the bone grafting filler is matched with the inner diameter of the trepan body 32, the two ends of the bone grafting filler are bullet-shaped and have different sizes, the bone grafting filler can continuously tamp the bone grafting by using the two ends with different sizes, so that the planted healthy bone is more fully filled into a bone cavity,
the articular surface restorer 7 is a round rod with one end provided with a knocking part 72 and the other end provided with a restoring part 73, the knocking part 72 is a cuboid, the contact surface of the restoring part 73 and the bone articular surface is a curved surface with the same curvature as that of the grinding drill 42, and the restoring part 73 can be a channel formed by screwing the trepan 3;
the articular surface restorer fixer 8 comprises a fixer holding part 81 and a fixer body part 82, the fixer holding part 81 is convenient for an operator to grasp, the fixer body part 82 is cylindrical, one end of the fixer body part 82 is provided with a fixer conical surface 83, the other end of the fixer body part is provided with the fixer holding part 81, and the fixer body part 82 is provided with a fixing groove 85 with the same diameter as the articular surface restorer 7. The collapsed articular surfaces can be restored by applying the articular surface restorer 7 and the articular surface restorer fixture 8.
And the surfaces of the guide pin 1, the trepan 3, the necrotic area abrasive drill 4, the bone grafting filler (6) and the articular surface restorer 7 are provided with scale marks.
The handheld part 31 is a conical pipe, the small end of the handheld part is connected with the trepan body 32, the inner diameter of the handheld part is the same as that of the trepan body 32, and reinforcing ribs are uniformly arranged on the outer surface of the handheld part, so that an operator can grasp the handheld part conveniently.
The said bypass hand-held part 51 is a curved bar.
The holder hand-held portion 81 is a round bar.
The outer surface of the concentric shaft maintaining piece 2 is symmetrically provided with an oval concave part so as to be convenient for an operator to grasp.
The surfaces of the left end and the right end of the bone grafting filler 6 are symmetrically provided with oval depressions so as to be convenient for an operator to grasp.
Claims (8)
1. A femoral head medulla core decompression reduction instrument is characterized in that: comprises a guide pin (1), a concentric shaft maintaining piece (2), a trepan (3), a necrotic area abrasive drill (4), an abrasive drill side core device (5), a bone grafting filler (6), a joint surface restorer (7) and a joint surface restoring fixer (8), wherein the guide pin (1) is a needle-shaped body comprising a guide pin body part (11) and a guide pin point part (12)
The concentric shaft maintaining piece (2) is a circular tubular body provided with a guide pin hole (21), and the diameter of the guide pin hole (21) is adapted to the guide pin body part (11);
the trepan (3) is in a circular tube shape, one end of the trepan is provided with a handheld part (31), and the other end of the trepan is provided with a circle of annular saw teeth (33);
the dead zone abrasive drill (4) comprises an abrasive drill rod (41) and an abrasive drill head (42), wherein the abrasive drill head (42) is an ellipsoidal drill head, and the size of the ellipsoidal drill head can pass through the pipe cavity of the trepan body (32);
the grinding drill side core device (5) comprises a side core device hand-held part (51) and a side core device body part (52), the side core device hand-held part (51) is convenient for an operator to grasp, the side core device body part is in a semi-circular rod shape, one end of the side core device body part is provided with a side core device head part (53), the other end of the side core device body part is connected with the side core device hand-held part (51), the front end of the side core device head part (53) is provided with a conical surface (56), and the upper part of the side core device head part (53) is provided with a clamping groove (57) which is adaptive to the diameter of a;
the bone grafting filler (6) is cylindrical, the diameter of the bone grafting filler is matched with the inner diameter of the trepan body (32), and two ends of the bone grafting filler are in a bullet shape;
the articular surface restorer (7) is in the shape of a round rod, one end of the articular surface restorer is provided with a knocking part (72), the other end of the articular surface restorer is provided with a restoring part (73), the knocking part (72) is a cuboid, the contact surface of the restoring part (73) and the articular surface of bones is a curved surface with the same curvature as that of the grinding drill bit (42), and the restoring part (73) can pass through a channel formed by screwing the trepan (3);
the articular surface reduction fixator (8) comprises a fixator handheld portion (81) and a fixator body portion (82), the fixator handheld portion (81) is convenient for an operator to grasp, the fixator body portion (82) is cylindrical, a fixator conical surface (83) is arranged at one end of the fixator body portion, the other end of the fixator body portion is connected with the fixator handheld portion (81), and fixing grooves (85) with the same diameter as that of the articular surface reduction fixator (7) are formed in the fixator body portion (82).
2. The femoral head core decompression reduction instrument according to claim 1, wherein: the surfaces of the guide pin (1), the trepan (3), the necrotic area abrasive drill (4), the bone grafting filler (6) and the articular surface restorer (7) are provided with scale marks.
3. The femoral head core decompression reduction instrument according to claim 1, wherein: the handheld part (31) is a conical tube, the small end of the handheld part is connected with the trepan, the inner diameter of the handheld part is the same as that of the trepan body (32), and reinforcing ribs are uniformly arranged on the outer surface of the handheld part.
4. The femoral head core decompression reduction instrument according to claim 1, wherein: the bypass device hand-held part (51) is a curved bar.
5. The femoral head core decompression reduction instrument according to claim 1, wherein: the holder hand-held portion (81) is a round bar.
6. The femoral head core decompression reduction instrument according to claim 1, wherein: the outer surface of the concentric shaft maintaining piece (2) is symmetrically provided with an oval depression so as to be convenient for an operator to grasp.
7. The femoral head core decompression reduction instrument according to claim 1, wherein: the surfaces of the left end and the right end of the bone grafting filler (6) are symmetrically provided with oval depressions, so that an operator can grasp the bone grafting filler conveniently.
8. The femoral head core decompression reduction instrument according to claim 1, wherein: the bone grafting filler (6) has two bullet-shaped ends and different sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921811424.0U CN211066868U (en) | 2019-10-26 | 2019-10-26 | Femoral head medulla core decompression reduction instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921811424.0U CN211066868U (en) | 2019-10-26 | 2019-10-26 | Femoral head medulla core decompression reduction instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211066868U true CN211066868U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921811424.0U Active CN211066868U (en) | 2019-10-26 | 2019-10-26 | Femoral head medulla core decompression reduction instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211066868U (en) |
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2019
- 2019-10-26 CN CN201921811424.0U patent/CN211066868U/en active Active
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