CN211934195U

CN211934195U - External rotation osteotomy adjuster for bone joint replacement

Info

Publication number: CN211934195U
Application number: CN201921288907.7U
Authority: CN
Inventors: 梁保党
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-11-17
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a bone joint replacement art is with external rotation osteotomy adjuster, including demarcation instrument main part, set up quantity in the demarcation instrument main part and be two through-holes, be fixed with quantity in the demarcation instrument main part and be two layer boards, quantity is the corresponding one side of two layer boards and all is equipped with the spout, quantity be two set up on the layer board with the first screw hole that the spout is linked together, place in the spout and place the board. Has the advantages that: the round bar goes up and down under the drive, the cover is equipped with places the board on the round bar down, because set up the limiting plate, thereby make it place the position that the board set up down on the round bar and keep unchangeable, lower round bar drives when going up and down and places the splint that the board is connected and carry out the change of elevating position, it is more accurate to make its press from both sides tight thighbone postcondylar department position, drive two splint through pressing from both sides tight moving mechanism and be close to each other and keep away from each other, from pressing from both sides tightly it, through removing the splint position, the splint distance adjustment of deuterogamying, finally make its tight.

Description

External rotation osteotomy adjuster for bone joint replacement

Technical Field

The utility model relates to the technical field of medical equipment, particularly, relate to a bone joint replacement is with external rotation osteotomy adjuster.

Background

With the continuous development and progress of medical technology, the artificial knee joint replacement operation has become one of the conventional treatment methods for treating the pathological changes of the knee joint, the artificial knee joint replacement utilizes an artificial joint prosthesis to replace a damaged joint so as to recover and improve the functions of the joint and improve the quality of life, and because the artificial knee joint replacement has short treatment course and obvious pain relieving effect, the artificial knee joint replacement is accepted by more and more doctors and patients, a calibration tool is needed in the prior art and is fixed at the posterior femoral condyle, but a mechanism for fixing the existing calibration tool cannot well fix the calibration tool at the posterior femoral condyle, so the overall working efficiency is influenced.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an external rotation osteotomy adjuster for bone joint replacement to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an external rotation osteotomy adjuster for bone joint replacement comprises a calibration tool main body, wherein two through holes are formed in the calibration tool main body, two support plates are fixed on the calibration tool main body, one sides of the two support plates corresponding to each other are respectively provided with a sliding groove, first threaded holes communicated with the sliding grooves are formed in the two support plates, a placing plate is placed in the sliding grooves, a moving plate is fixedly arranged on the placing plate, the other end of the moving plate is fixedly provided with two telescopic rods, the other ends of the two telescopic rods are fixedly provided with a clamping plate, a connecting rod is slidably inserted into the first threaded holes and is divided into an upper threaded rod and a lower round rod, through holes matched with the lower round rod are formed in the placing plate, two limiting plates are fixedly arranged on the lower round rod, and the two limiting plates are respectively contacted with the top end of the placing plate and the bottom end of the placing plate, the clamping plate is connected with a clamping moving mechanism, and fixing rods are inserted into the two through holes.

Furthermore, a non-slip mat is fixedly adhered to one side corresponding to the clamping plate.

Furthermore, press from both sides tight moving mechanism and include a plurality of second screw hole and threaded rod, a plurality of second screw hole equidistant setting, and offer on quantity is two layer boards, the threaded rod with second screw hole phase-match, a plurality of second screw hole with the spout is linked together.

Furthermore, the other end of the upper threaded rod is fixedly provided with a manual rotating rod.

Furthermore, the manual rotating rod is made of plastic materials.

Compared with the prior art, the utility model discloses following beneficial effect has:

rotate the connecting rod, and the connecting rod divide into threaded rod and round bar down, go up the threaded rod when first screw hole internal rotation, the round bar goes up and down under the drive, the cover is equipped with places the board on the round bar down, because set up the limiting plate, thereby make it place the position on the round bar under the board setting and keep unchangeable, lower round bar drives when going up and down and places the splint that the board is connected and carry out the change of elevating position, it is more accurate to make its tight thighbone postcondylar department position of clamp, drive two splint through pressing from both sides tight moving mechanism and be close to each other and keep away from each other, from pressing from both sides tightly it, through moving the splint position, the splint apart from the adjustment of deuterogam.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of an external rotation osteotomy adjuster for use in bone joint replacement surgery, in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram of a plate of an external rotation osteotomy adjuster for use in bone joint replacement surgery, in accordance with an embodiment of the present invention;

fig. 3 is a schematic diagram of an external rotation osteotomy adjuster for bone arthroplasty for osteotomy of a distal femur according to an embodiment of the present invention;

fig. 4 is a schematic view of a universal condyle line of a joint to be replaced of the external rotation osteotomy adjuster according to an embodiment of the present invention.

Reference numerals:

1. calibrating the tool main body; 2. a through hole; 3. a support plate; 4. a chute; 5. a first threaded hole; 6. placing the plate; 7. moving the plate; 8. a telescopic rod; 9. a splint; 10. an upper threaded rod; 11. a lower round bar; 12. perforating; 13. a non-slip mat; 14. a second threaded hole; 15. A threaded rod; 16. a manual rotating rod; 17. fixing nails; 18. and a limiting plate.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

in order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

The first embodiment is as follows:

referring to fig. 1-2, an external rotation osteotomy adjustor for osteoarthroplasty according to an embodiment of the present invention includes a calibration tool body 1, the calibration tool body 1 is provided with two through holes 2, the calibration tool body 1 is fixed with two support plates 3, one side of each of the two support plates 3 is provided with a sliding slot 4, the two support plates 3 are provided with a first threaded hole 5 communicated with the sliding slot 4, a placing plate 6 is placed in the sliding slot 4, the placing plate 6 is fixed with a moving plate 7, the other end of the moving plate 7 is fixed with two telescopic rods 8, the other end of each of the two telescopic rods 8 is fixed with a clamp plate 9, the first threaded hole 5 is slidably inserted with a connecting rod, the connecting rod is divided into an upper threaded rod 10 and a lower round rod 11, the placing plate 6 is provided with a through hole 12 matched with the lower round rod 11, the fixed limiting plate 18 that is two that is equipped with quantity on the round bar 11 down, quantity be two limiting plate 18 for do not with place 6 tops of board with place 6 bottoms and contact, splint 9 is connected with presss from both sides tight moving mechanism, and quantity is that 2 interpolations of through-hole of two are equipped with staple 17.

Example two:

referring to fig. 2, for the clamping plate 9, a non-slip mat 13 is fixedly adhered to a corresponding side of the clamping plate 9.

Example three:

referring to fig. 2, for the clamping moving mechanism, the clamping moving mechanism includes a plurality of second threaded holes 14 and a threaded rod 15, the plurality of second threaded holes 14 are disposed at equal intervals and are formed on two support plates 3, the threaded rod 15 is matched with the second threaded holes 14, and the plurality of second threaded holes 14 are communicated with the sliding groove 4.

Through the above technical scheme of the utility model, beneficial effect: when splint 9 carries out the lifting position change, insert threaded rod 15 in the second screw hole 14 that corresponds, when rotating, make its threaded rod 15 and splint 9 contact, thereby drive splint 9 and be close to each other when rotating again to play the tight work of clamp, when out of work, roll out threaded rod 15, manual movement can make its two splint 9 keep away from each other.

Example four:

referring to fig. 2, for the upper threaded rod 10, a manual rotating rod 16 is fixedly arranged at the other end of the upper threaded rod 10.

Through the above technical scheme of the utility model, beneficial effect: the manual rotating rod 16 is arranged to facilitate work by rotating the upper threaded rod 10 through the manual rotating rod 16.

Example five:

referring to fig. 2, for the manual rotating rod 16, the manual rotating rod 16 is made of plastic.

Through the above technical scheme of the utility model, beneficial effect:

for the convenience of understanding the above technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process:

in practical application, the connecting rod is rotated and divided into an upper threaded rod 10 and a lower round rod 11, when the upper threaded rod 10 rotates in the first threaded hole 5, the lower round rod 11 is driven to go up and down, the lower round rod 11 is sleeved with the placing plate 6, because a limiting plate 18 is arranged, the position of the placing plate 6 on the lower round rod 11 is kept unchanged, when the lower round rod 11 goes up and down, the clamping plate 9 connected with the placing plate 6 is driven to change the lifting position, so that the position of the femoral condyle clamped by the lower round rod is more accurate, the clamping moving mechanism drives the two clamping plates 9 to approach and separate from each other, so as to clamp the lower round rod, the position of the clamping plate 9 is moved, the distance adjustment of the clamping plate 9 is matched, and finally the femur is completely clamped, in the artificial knee joint replacement, the distal end of the femur needs to be cut to obtain a femur model for installing the artificial joint prosthesis, as shown in fig. 3, firstly, the distal end of the femur is resected to form a vertical section a, then two planar sections b perpendicular to the vertical section a are formed, and then a diagonal section c is formed between the vertical section a and the planar sections b, in order to obtain the balance of knee joint flexion and knee extension gaps, the upper and lower planar sections are also required to be parallel to the universal condylar line of the joint to be replaced, i.e. parallel to the line d in fig. 4, in order to achieve this purpose, the line d is generally marked on the vertical section a of the joint to be replaced, then the two planar sections b are cut by taking the line d as a reference, in order to mark the parallel line of the line d on the vertical section a, therefore, the condyles are fixedly connected with the rear part of the femur shown in the figure by a connecting piece arranged on the supporting plate 3 through a commonly used calibration tool shown in fig. 1 and fig. 2, so that the connection is stable, and then the operation is facilitated, and then two fixing nails 17 are nailed in the through holes 2, after the calibration tool is removed, the fixing nails 17 are left on the joint to be replaced, and the connecting line of the two fixing nails 17 is the parallel line of the line d.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The external rotation osteotomy adjuster for the bone joint replacement is characterized by comprising a calibration tool main body (1), wherein two through holes (2) are formed in the calibration tool main body (1), two supporting plates (3) are fixed on the calibration tool main body (1), sliding grooves (4) are formed in one sides, corresponding to the two supporting plates (3), of the two supporting plates (3), first threaded holes (5) communicated with the sliding grooves (4) are formed in the two supporting plates (3), a placing plate (6) is placed in the sliding grooves (4), a moving plate (7) is fixedly arranged on the placing plate (6), two telescopic rods (8) are fixedly arranged at the other end of the moving plate (7), a clamping plate (9) is fixedly arranged at the other end of the two telescopic rods (8), and a connecting rod is slidably inserted in the first threaded holes (5), the connecting rod divide into threaded rod (10) and lower round bar (11), place on board (6) seted up with round bar (11) assorted perforation (12) down, circle bar (11) are gone up fixed limiting plate (18) that are equipped with quantity for two down, quantity be two limiting plate (18) for do not with place board (6) top with place board (6) bottom and contact, splint (9) are connected with and press from both sides tight moving mechanism, and quantity is through-hole (2) interpolation of two and is equipped with staple (17).

2. The external rotation osteotomy adjuster according to claim 1, wherein said splint (9) has a non-slip pad (13) affixed to a side thereof opposite to said splint.

3. The external rotation osteotomy adjuster according to claim 1, wherein said clamping moving mechanism comprises a plurality of second threaded holes (14) and a threaded rod (15), said plurality of second threaded holes (14) being arranged at equal intervals and opening on two support plates (3), said threaded rod (15) being matched with said second threaded holes (14), said plurality of second threaded holes (14) being in communication with said chute (4).

4. The external rotation osteotomy adjuster according to claim 1, wherein said upper threaded rod (10) is fixed at the other end thereof with a manual rotation rod (16).

5. The external rotation osteotomy adjuster according to claim 4, wherein said manual rotation rod (16) is made of plastic material.