阅读说明：本技术 一种含骨诱导材料的股骨头内支撑架 (Femoral head inner support frame containing osteoinductive material ) 是由 张燕 于 2020-08-08 设计创作，主要内容包括：本发明公开了一种含骨诱导材料的股骨头内支撑架,包括支架主体、支板、支架端头、加固机构、紧固机构、螺杆、升降块、滑块、辅助机构和限位机构。本发明的有益效果是：完成对股骨头内部初步的支撑固定后,使用者可对螺杆进行转动,令升降块产生转动的趋势,但由于升降块被滑块所限位,则升降块只能在支架主体内部不断的上下移动,随着升降块不断的朝底端移动,当升降块抵触支架端头的内壁时,就会对支架端头的内壁进行挤压,则支架端头的两侧就会朝两边扩张,紧固于股骨头的内部,从而在使用时更好的令支架主体固定于股骨头内部,方便对股骨头内部起到更好的支撑效果,使得能够避免长时间使用发生偏位的情况,保证患者的使用效果。(The invention discloses an internal support frame for a femoral head containing an osteoinductive material, which comprises a support main body, a support plate, a support end, a reinforcing mechanism, a fastening mechanism, a screw rod, a lifting block, a sliding block, an auxiliary mechanism and a limiting mechanism. The invention has the beneficial effects that: accomplish the inside preliminary support of femoral head and fix the back, the user can rotate the screw, make the elevator produce pivoted trend, nevertheless because the elevator is spacing by the slider, then the elevator can only reciprocate in support main part is inside continuously, along with the elevator is continuous to remove towards the bottom, when the inner wall of elevator conflict support end, will extrude the inner wall of support end, then the both sides of support end will expand towards both sides, fasten in the inside of femoral head, thereby better messenger's support main part is fixed in inside the femoral head when using, conveniently play better supporting effect to the femoral head inside, make and avoid long-time use the condition of taking place off normal, guarantee patient's result of use.)

1. An inner support frame of femoral head containing bone inducing material, which comprises a support plate (2), and is characterized in that: the middle part of the support plate (2) is provided with a support main body (1), the bottom end of the support main body (1) is connected with a support end head (3), the cross section of an inner cavity of the support end head (3) is isosceles trapezoid, two sides of the support main body (1) are provided with reinforcing mechanisms (5), the inside of the support main body (1) is provided with a fastening mechanism (6), the fastening mechanism (6) comprises a screw rod (61), a lifting block (63) and a sliding block (64), the lifting block (63) is clamped inside the support main body (1), the screw rod (61) is in threaded connection with the inside of the lifting block (63), the top end of the screw rod (61) extends to the outside of the support main body (1), two sides of the lifting block (63) close to the back of the top end part are respectively connected with one sliding block (64), and the sliding block (64) is clamped inside the support main body (1, the utility model discloses a support structure, including support main part (1), the lateral wall of support main part (1) is inside to be equipped with complementary unit (7), complementary unit (7) include tricalcium phosphate and induce material (71) and through-hole (72), be equipped with in the lateral wall inner chamber of support main part (1) tricalcium phosphate induces material (71), just be equipped with a great deal with on the lateral wall of support main part (1) through-hole (72), the inside of lifter block (63) is equipped with stop gear (8).

2. The osteoinductive material-containing intrafemoral head stent of claim 1, wherein: the middle of the top surface of the support plate (2) is provided with a gasket (4), the whole gasket (4) is in a circular ring shape, and the gasket (4) is positioned at the bottom of the top end of the screw rod (61).

3. The osteoinductive material-containing intrafemoral head stent of claim 1, wherein: the reinforcing mechanism (5) comprises a first bolt (51) and a second bolt (52), the first bolt (51) and the second bolt (52) are respectively arranged on the support plate (2) and located on two sides of the support main body (1), and the first bolt (51) and the second bolt (52) penetrate through the support plate (2).

4. The osteoinductive material-containing intrafemoral head stent of claim 1, wherein: the fastening mechanism (6) further comprises an inner groove (62), the inner groove (62) is arranged in the middle of the top end of the screw rod (61), the screw rod (61) penetrates through the inner groove (62), and the shape and volume of the top end of the screw rod (61) are the same as those of the inner groove (62).

5. The osteoinductive material-containing intrafemoral head stent of claim 1, wherein: stop gear (8) are including draw-in groove (81), arrangement groove (82), spring (84) and fixture block (85), elevator (63) are close to the both sides that the bottom position carried on the back mutually and are equipped with one respectively arrangement groove (82), elevator (63) are being equipped with be equipped with on the inner wall at arrangement groove (82) position spring (84), the other end of spring (84) is connected with fixture block (85), the both sides that the support end (3) inner wall is relative are equipped with one respectively draw-in groove (81).

6. The osteoinductive material-containing intrafemoral head stent of claim 5, wherein: the limiting mechanism (8) further comprises a side plate (83), the lifting block (63) is fixed on the inner wall of the position where the placing groove (82) is formed, the side plate (83) is fixed on the inner wall, and the other end of the side plate (83) is connected with the spring (84).

Technical Field

The invention relates to a femoral head support frame, in particular to an internal femoral head support frame containing an osteoinductive material, and belongs to the technical field of human body implants.

Background

The femoral head is round, occupying about 2/3 a sphere, and is completely covered by articular cartilage. A common treatment for femoral head necrosis is decompression of the medullary core. To prevent accelerated collapse of the femoral head due to bone defects and femoral neck weakness created by core decompression, a buttress is implanted within the femoral head to provide a supportive force. Such implants are known as intra-femoral head stents. The ideal femoral head inner support frame has a porous structure similar to human bone tissues on the surface and inside the frame body, is beneficial to the growth of the bone tissues into the support body, and realizes good combination with the bone tissues.

In the patent application No. 201020642688.0, an "inner support frame for femoral head" is disclosed, which enhances the condition of bone tissue growth for bone formation delivery and bone formation induction during the use process, however, in the above patent, because the inner support frame is inserted into the femoral head for supporting only by a single bolt-like structure, the inner support frame is prone to deviation during the long-term use of the patient, especially when the patient has violent activities, which affects the use effect of the patient.

Disclosure of Invention

The invention aims to solve the problems, and provides an internal femoral head support frame containing an osteoinductive material, which can be better fixed inside a femoral head when in use, is convenient to have a better supporting effect on the inside of the femoral head, avoids deviation after long-time use, and ensures the using effect of a patient.

The invention achieves the aim through the following technical scheme, the femoral head inner support frame containing the bone inducing material comprises a support plate, a support main body is arranged in the middle of the support plate, a support end socket is connected to the bottom end of the support main body, the cross section of an inner cavity of the support end socket is in an isosceles trapezoid shape, reinforcing mechanisms are arranged on two sides of the support main body, a fastening mechanism is arranged in the support main body and comprises a screw rod, a lifting block and a sliding block, the lifting block is clamped in the support main body, the screw rod is in threaded connection with the lifting block in the lifting block, the top end of the screw rod extends to the outside of the support main body, two opposite sides of the lifting block close to the top end are respectively connected with the sliding block, the sliding block is clamped in the support main body, and an auxiliary mechanism is arranged in the side wall of the support, the auxiliary mechanism comprises tricalcium phosphate inducing materials and through holes, the tricalcium phosphate inducing materials are arranged in the inner cavity of the side wall of the support main body, the through holes are formed in the side wall of the support main body, and the limiting mechanism is arranged inside the lifting block.

Preferably, in order to facilitate the screwing of the screw rod, a gasket is arranged in the middle of the top surface of the support plate, the whole gasket is annular, and the gasket is located at the bottom of the top end of the screw rod.

Preferably, in order to further limit the bracket main body, the reinforcing mechanism includes a first bolt and a second bolt, the first bolt and the second bolt are respectively arranged on the support plate on two sides of the bracket main body, and the first bolt and the second bolt penetrate through the support plate.

Preferably, in order to facilitate the screw rod to completely enter the inside of the bracket main body, the fastening mechanism further comprises an inner groove, the inner groove is arranged in the middle of the top end of the screw rod, the screw rod penetrates through the inner groove, and the shape volume of the top end of the screw rod is the same as the shape volume of the inner groove.

Preferably, in order to conveniently limit the lifting block, the limiting mechanism comprises a clamping groove, a placing groove, a spring and a clamping block, the two sides, close to the bottom end, of the lifting block, which are back to each other, are respectively provided with the placing groove, the lifting block is provided with the spring on the inner wall of the placing groove, the other end of the spring is connected with the clamping block, and the two opposite sides of the inner wall of the end of the bracket are respectively provided with the clamping groove.

Preferably, in order to conveniently fix and place the spring, the limiting mechanism further comprises a side plate, the side plate is fixed on the inner wall of the position, provided with the placing groove, of the lifting block, and the other end of the side plate is connected with the spring.

The invention has the beneficial effects that: when the interior of the femoral head of a patient needs to be supported, a user can manually hold the support plate, the end of the support on the support main body is aligned to a hole which is drilled in advance in the femoral head of the patient, then the end of the support main body is rotated, and the support main body continuously and spirally enters the hole in the femoral head of the patient, so that the primary supporting and fixing of the interior of the femoral head of the patient is completed; then, the user can manually rotate the tip of screw rod, along with the rotation of screw rod, make the elevator produce the pivoted trend, but because the elevator is spacing by the slider, then the elevator can only reciprocate in the inside of support main part is continuous, along with the elevator is continuous to remove towards the bottom, when the elevator contradicts the inner wall of support end, the elevator will extrude the inner wall of support end, then the both sides of support end will expand towards both sides, fasten in the inside of femoral head, thereby better messenger's support main part is fixed in inside the femoral head when using, conveniently play better supporting effect to the femoral head inside, make and avoid long-time use the condition of taking place the off normal, guarantee patient's result of use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection structure between the main body and the end of the stent shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged schematic view of a portion B shown in fig. 2.

In the figure: 1. the support comprises a support main body, 2, a support plate, 3, a support end, 4, a gasket, 5, a reinforcing mechanism, 51, a first bolt, 52, a second bolt, 6, a fastening mechanism, 61, a screw rod, 62, an inner groove, 63, a lifting block, 64, a sliding block, 7, an auxiliary mechanism, 71, tricalcium phosphate induction material, 72, a through hole, 8, a limiting mechanism, 81, a clamping groove, 82, a placement groove, 83, a side plate, 84, a spring, 85 and a clamping block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the femoral head inner support frame containing an osteoinductive material includes a support plate 2, a support main body 1 is arranged in the middle of the support plate 2, a support end 3 is connected to the bottom end of the support main body 1, the cross section of an inner cavity of the support end 3 is isosceles trapezoid, reinforcing mechanisms 5 are arranged on two sides of the support main body 1, a fastening mechanism 6 is arranged inside the support main body 1, the fastening mechanism 6 includes a screw 61, a lifting block 63 and a slider 64, the lifting block 63 is clamped inside the support main body 1, the screw 61 is connected to the lifting block 63 through an internal thread, the top end of the screw 61 extends to the outside of the support main body 1, two opposite sides of the lifting block 63 near the top end are respectively connected with the slider 64, and the slider 64 is clamped inside the support main body 1, the inside complementary unit 7 that is equipped with of lateral wall of support main part 1, complementary unit 7 includes tricalcium phosphate induced material 71 and through-hole 72, be equipped with in the lateral wall inner chamber of support main part 1 tricalcium phosphate induced material 71, just be equipped with a great deal with on the lateral wall of support main part 1 through-hole 72, the inside of elevator 63 is equipped with stop gear 8.

As a technical optimization scheme of the invention, a gasket 4 is arranged in the middle of the top surface of the support plate 2, the gasket 4 is annular as a whole, and the gasket 4 is positioned at the bottom of the top end of the screw 61.

As a technical optimization scheme of the present invention, the reinforcing mechanism 5 includes a first bolt 51 and a second bolt 52, the first bolt 51 and the second bolt 52 are respectively disposed on the support plate 2 at two sides of the bracket body 1, and the first bolt 51 and the second bolt 52 penetrate through the support plate 2.

In an advantageous embodiment of the present invention, the fastening mechanism 6 further includes an inner groove 62, the inner groove 62 is provided in a middle portion of a tip end of the screw 61, the screw 61 penetrates the inner groove 62, and a shape and a volume of the tip end of the screw 61 are the same as those of the inner groove 62.

As a technical optimization scheme of the invention, the limiting mechanism 8 comprises a clamping groove 81, a placing groove 82, a spring 84 and a clamping block 85, the placing groove 82 is respectively arranged on two opposite sides of the lifting block 63 near the bottom end, the spring 84 is arranged on the inner wall of the lifting block 63 at the position where the placing groove 82 is arranged, the clamping block 85 is connected to the other end of the spring 84, and the clamping groove 81 is respectively arranged on two opposite sides of the inner wall of the end 3 of the bracket.

As a technical optimization scheme of the present invention, the limiting mechanism 8 further includes a side plate 83, the side plate 83 is fixed on the inner wall of the lifting block 63 at the position where the placing groove 82 is provided, and the other end of the side plate 83 is connected with the spring 84.

When the device is used, firstly, the whole device is arranged at a required proper position to finish the preparation work before the device is used; when the interior of the femoral head of a patient needs to be supported, a user can manually hold the support plate 2, so that the support end 3 on the support main body 1 is aligned with a hole which is drilled in advance in the femoral head of the patient, meanwhile, the first bolt 51 and the second bolt 52 are also aligned with the hole which is drilled in advance in the femoral head of the patient, then, the end part of the support main body 1 is rotated, the support main body 1 is continuously screwed into the hole in the femoral head of the patient, preliminary support and fixation of the interior of the femoral head of the patient are completed, and meanwhile, the first bolt 51 and the second bolt 52 also enter the hole which is drilled in advance in the femoral head of the patient; then, further, the user can manually rotate the end of the screw 61, and the lifting block 63 tends to rotate along with the rotation of the screw 61, but because the lifting block 63 is limited by the slider 64, the lifting block 63 can only continuously move up and down in the bracket main body 1, and finally the lifting block 63 completely enters the inner groove 62 along with the continuous movement of the lifting block 63 towards the bottom end, and the fixture block 85 is clamped in the clamping groove 81 under the action of the spring 84; when the elevator 63 contradicts the inner wall of support end 3, the elevator 63 will extrude the inner wall of support end 3, then the both sides of support end 3 will expand towards both sides, fasten in the inside of femoral head to inside better making support main part 1 be fixed in the femoral head when using, the convenience plays better supporting effect to the femoral head inside, makes the condition that can avoid long-time use to take place the off normal, guarantees patient's result of use.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.