CN219000500U

CN219000500U - Fracture fixation clamp

Info

Publication number: CN219000500U
Application number: CN202222138932.5U
Authority: CN
Inventors: 郑轶; 殷一红; 张嘉锴; 吴君龙; 袁欣华
Original assignee: Ningbo Huamei Hospital University of CAS
Current assignee: Ningbo Huamei Hospital University of CAS
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-05-12
Anticipated expiration: 2032-08-15

Abstract

The utility model discloses a fracture fixation clamp, comprising: the two groups of limiting clamps are provided with a plurality of groups of bone nail grooves, and are rotationally connected with a rotating shaft, both ends of the rotating shaft are rotationally connected with fixed blocks, and the two groups of fixed blocks are fixedly connected with connecting blocks; further comprises: the adjusting component is used for integrally adjusting the fixing clamps according to different patients, is arranged between the two groups of limiting clamps and is connected with the connecting block; the limiting component is used for conducting auxiliary work when the intramedullary nail is nailed, and is connected with the adjusting component, and the fracture fixation clamp effectively solves the problems that the top end is easy to deviate when the intramedullary nail is nailed and further damage is caused to a patient due to the fact that the span is long and subcutaneous tissue is thick when the intramedullary nail is nailed to a patient.

Description

Fracture fixation clamp

Technical Field

The utility model relates to the technical field of fracture fixation, in particular to a fracture fixation clamp.

Background

Fracture refers to the continuous complete or partial fracture of bone structure, which is often happened to children and the elderly, middle aged and young people, and the patient is often a fracture at one part, a few of the patients are multiple fractures, and after timely proper treatment, the majority of the patients can recover the original functions, and the minority of the patients can be left with sequelae of different degrees.

The main causes of fractures are mainly three: 1. direct violence: the violence directly acts on a certain part of the bone to cause fracture of the part, so that the fracture occurs at the injured part, and soft tissue injuries with different degrees are often accompanied; 2. indirect violence: indirect violence causes fractures in remote places through longitudinal conduction, leverage or torsion; 3. accumulated strain: long-term, repeated, slight direct or indirect injury can cause fracture of a specific part of the limb, also called fatigue fracture;

at present, when medical staff treats a patient with comminuted fracture of femur, the patient needs to open at knee and nail into femur through intramedullary nail in order to recover, in the prior art, when nailing into intramedullary nail, the medical staff all operates through appurtenance, but because intramedullary nail is nail into femur from knee, span is longer, and subcutaneous tissue is thicker, leads to easy top offset when nailing into intramedullary nail, causes further injury to patient, for this reason, we propose a fracture fixation clamp.

Disclosure of Invention

The present utility model is directed to a fracture fixation clamp, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a fracture fixation clamp, comprising: the two groups of limiting clamps are provided with a plurality of groups of bone nail grooves, and are rotationally connected with a rotating shaft, both ends of the rotating shaft are rotationally connected with fixed blocks, and the two groups of fixed blocks are fixedly connected with connecting blocks; further comprises: the adjusting component is used for integrally adjusting the fixing clamps according to different patients, is arranged between the two groups of limiting clamps and is connected with the connecting block; the limiting component is used for performing auxiliary work when the intramedullary nail is driven in, and is connected with the adjusting component, so that the problems that the top end is easy to deviate when the intramedullary nail is driven in and further damage is caused to a patient due to the fact that the span is long and subcutaneous tissue is thick when the intramedullary nail is driven in by a patient are effectively solved.

Preferably, the adjusting component comprises a threaded rod, one end of the threaded rod is arranged on the connecting block and is connected with the connecting block in a rotating mode, the other end of the threaded rod is fixedly connected with a rotating block, threads of the threaded rod are connected with threaded sleeves, two groups of threaded sleeves are connected with reference plates in a rotating mode, sliding grooves are formed in the reference plates, and a moving mechanism is connected with the sliding grooves, so that the adjusting component is beneficial to patients with different sizes.

Preferably, the moving mechanism comprises a sliding block which is arranged on the reference plate and is in sliding connection with the reference plate, a fixed sleeve is fixedly connected to the sliding block, a plurality of groups of connecting sleeves are fixedly connected to the sliding block, connecting rods are connected to the connecting sleeves in a sliding manner, extrusion blocks are fixedly connected between the connecting rods, and fixing bolts which are in threaded connection with the fixed sleeve in a rotating manner are connected to the extrusion blocks, so that the length of the intramedullary nail is controlled.

Preferably, the limiting assembly comprises a moving block fixedly connected with the sliding block and slidingly connected with the reference plate, a telescopic pipe with one end fixedly connected with the moving block is arranged on the telescopic pipe, the other end of the telescopic pipe is fixedly connected with the reference plate close to the top end, a limiting shaft is slidingly connected with the telescopic pipe, the limiting shaft is fixedly connected with a butt joint block, an auxiliary sleeve is fixedly connected with the butt joint block, a handle is fixedly connected with the auxiliary sleeve, an intramedullary nail is slidingly connected with the auxiliary sleeve, and the intramedullary nail is prevented from being deviated.

Preferably, a torsion spring is arranged between the fixing clamp and the rotating shaft, and the torsion force of the torsion spring is small, so that the whole fixing device is beneficial to being fixed at the thigh of a patient.

Preferably, a plurality of groups of operation notches are formed in the rotating block, so that the rotating block is more stable in operation.

Preferably, one side of the reference plate is provided with scale marks, which is beneficial to controlling the length of the nailing.

Preferably, a rubber pad is arranged on one side of the extrusion block, which is close to the sliding block, so that the extrusion block is more stably fixed on the reference plate.

Preferably, the material of spacing axle is wear-resisting metal material, is favorable to spacing axle more durable.

Preferably, the handle is sleeved with an anti-skid sleeve, which is beneficial to the operation when the intramedullary nail is nailed.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model effectively solves the problems that the top end is easy to deviate when the intramedullary nail is driven into the patient due to longer span and thicker subcutaneous tissue and further hurts the patient by the matched operation of the adjusting component and the limiting component, and simultaneously, the adjusting component can be suitable for patients with different body types when being operated and adjusted, thereby effectively improving the overall practicability and the safety when being operated.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is a schematic view of another view of the overall structure of the present utility model;

FIG. 4 is an enlarged view of area B of FIG. 3;

FIG. 5 is an enlarged view of region C of FIG. 3;

FIG. 6 is a schematic view of a part of the moving mechanism according to the present utility model;

fig. 7 is a schematic structural diagram of a limiting assembly according to the present utility model.

In the figure: 1-a limiting clamp; 2-bone screw grooves; 3-rotating shaft; 4-fixing blocks; 5-connecting blocks; 6-adjusting the assembly; 7-a limiting assembly; 8-a threaded rod; 9-rotating the block; 10-a thread sleeve; 11-a reference plate; 12-a sliding groove; 13-a movement mechanism; 14-sliding blocks; 15-fixing the sleeve; 16-connecting sleeve; 17-connecting rods; 18-extruding a block; 19-fixing bolts; 20-moving blocks; 21-telescopic tube; 22-limiting shafts; 23-butt joint blocks; 24-auxiliary sleeve; 25-holding the handle; 26-intramedullary nail.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present utility model provides a technical solution: a fracture fixation clamp, comprising: two groups of limiting clamps 1, wherein a plurality of groups of bone screw grooves 2 are formed in the limiting clamps 1, a rotating shaft 3 is rotatably connected to the limiting clamps 1, fixed blocks 4 are rotatably connected to two ends of the rotating shaft 3, and two groups of fixed blocks 4 are fixedly connected with connecting blocks 5; further comprises: the adjusting component 6 is used for integrally adjusting the fixing clamps according to different patients, is arranged between the two groups of limiting clamps 1 and is connected with the connecting block 5; the limiting component 7, the limiting component 7 is used for carrying out auxiliary work when the intramedullary nail 26 is nailed in, and is connected with the adjusting component 6, wherein, in order to make the whole fix on the leg of the patient more stably, and can not cause discomfort to the patient, the fixation clamp with be provided with the torsional spring between the axis of rotation 3, and the torsion of torsional spring is less.

The adjusting component 6 comprises a threaded rod 8, one end of the threaded rod 8 is arranged on the connecting block 5 and is rotationally connected with the threaded rod, the other end of the threaded rod 8 is fixedly connected with a rotating block 9, a threaded sleeve 10 is in threaded connection with the threaded sleeve, two groups of the threaded sleeves 10 are rotationally connected with a reference plate 11, a sliding groove 12 is formed in the reference plate 11, and a moving mechanism 13 is connected through the sliding groove 12, wherein in order to enable the rotating block 9 to be more convenient to operate, a plurality of groups of operation notches are formed in the rotating block 9, in addition, in order to improve the accuracy of the length of the nail in the thigh bone, scale marks are formed in one side of the reference plate 11.

The moving mechanism 13 comprises a sliding block 14 which is arranged on the reference plate 11 and is in sliding connection with the same, a fixed sleeve 15 is fixedly connected to the sliding block 14, a plurality of groups of connecting sleeves 16 are fixedly connected to the sliding block 14, connecting rods 17 are slidably connected to the connecting sleeves 16, a pressing block 18 is fixedly connected between the connecting rods 17, the pressing block 18 is in threaded connection with a fixed bolt 19 which is in rotary connection with the fixed sleeve 15, and in order to enable the pressing block 18 to be more stably fixed on the reference plate 11, a rubber pad is arranged on one side, close to the sliding block 14, of the pressing block 18.

The limiting assembly 7 comprises a moving block 20 fixedly connected with the sliding block 14 and slidingly connected with the reference plate 11, a telescopic pipe 21 with one end fixedly connected with the moving block 20 is arranged on the telescopic pipe 21, the other end of the telescopic pipe 21 is fixedly connected with the position, close to the top end, of the reference plate 11, a limiting shaft 22 is slidingly connected with a butting block 23, an auxiliary sleeve 24 is fixedly connected with the butting block 23, a handle 25 is fixedly connected with the auxiliary sleeve 24, an intramedullary nail 26 is slidingly connected with the auxiliary sleeve 24, and in addition, in order to enable the limiting shaft 22 to be more durable, the limiting shaft 22 is made of wear-resistant metal materials, the telescopic pipe 21 is more convenient to operate when being nailed into the intramedullary nail 26, and an anti-slip sleeve is sleeved on the handle 25.

Working principle: when a patient with fracture of the femur needs to be treated, an intramedullary nail 26 needs to be nailed into the femur, in order to prevent the top end of the intramedullary nail 26 from shifting when the intramedullary nail 26 is nailed, the fixing clamp is integrally placed at the thigh of the patient, one group of limiting clamps 1 is used for clamping the thigh to be close to the femur, the other group of limiting clamps 1 is used for clamping the position close to the knee, then the bone nail is inserted into a bone nail groove 2 on the limiting clamp 1 and penetrates the femur, the integral fixing clamp is fixed on the thigh, a torsion spring is arranged at the rotating shaft 3, the limiting clamps 1 can be clamped on the thigh, the force cannot cause discomfort to the patient, and because the reference plate 11 is in rotating connection with the two groups of threaded sleeves 10, after the two groups of limiting clamps 1 are fixed, the reference plate 11 rotates correspondingly to the two groups of limiting clamps 1, and at the moment, the path of the reference plate 11 is the path of the femur in subcutaneous tissue;

during operation, firstly, a incision is made at the knee to expose the position of the femur, then, the distance between the reference plate 11 and the femur is correspondingly adjusted according to the thigh thickness degree of different patients, when the adjustment is performed, the two groups of rotating blocks 9 are rotated, the rotating blocks 9 drive the threaded rod 8 fixedly connected with the rotating blocks to rotate on the connecting block 5, the threaded rod 8 is in threaded connection with the threaded sleeve 10, and when the two groups of threaded rods 8 rotate, the reference plate 11 is driven to correspondingly move on the threaded rod 8, so that the distance between the reference plate 11 and the femur is adjusted, and the intramedullary nail 26 is convenient to be nailed into the femur;

then according to the scale marks on the reference plate 11, controlling the length of the intramedullary nail 26 which is nailed into the femur, rotating the fixing bolt 19 in the fixing sleeve 15, and through the threaded connection of the fixing bolt 19 and the extrusion block 18, further enabling the extrusion block 18 to drive the connecting rod 17 to move outwards in the connecting sleeve 16, further loosening the sliding block 14 on the reference plate 11, then pushing the sliding block 14 to slide on the reference plate 11, further selecting different lengths according to different injury conditions, and reversely rotating the fixing bolt 19, so that the extrusion block 18 is further fixed on the reference plate 11 through the cooperation with the sliding block 14;

in the length selection process, the telescopic tube 21 is driven by the sliding block 14 through the moving block 20, the corresponding expansion and contraction is carried out on one side of the reference plate 11, finally the intramedullary nail 26 is inserted into the auxiliary sleeve 24, the limiting shaft 22 is inserted into the telescopic tube 21, when the intramedullary nail 26 is nailed, the limiting shaft 22 on the abutting block 23 slides in the telescopic tube 21, the intramedullary nail 26 is ensured to maintain a straight line state during operation, the deviation is not easy to occur, and the safety and the practicability are improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. A fracture fixation clamp, comprising:

two groups of limiting clamps (1), wherein a plurality of groups of bone nail grooves (2) are formed in the limiting clamps (1), a rotating shaft (3) is rotatably connected to the limiting clamps, fixing blocks (4) are rotatably connected to two ends of the rotating shaft (3), and connecting blocks (5) are fixedly connected to the two groups of fixing blocks (4);

further comprises:

the adjusting component (6) is used for integrally adjusting the fixing clamps according to different patients, is arranged between the two groups of limiting clamps (1) and is connected with the connecting block (5);

and the limiting assembly (7) is used for performing auxiliary work when the intramedullary nail (26) is nailed, and is connected with the adjusting assembly (6).

2. A fracture fixation clamp as in claim 1, wherein: the adjusting component (6) comprises a threaded rod (8) with one end arranged on the connecting block (5) and rotationally connected with the connecting block, a rotating block (9) is fixedly connected with the other end of the threaded rod (8), a threaded sleeve (10) is connected with threads, two groups of threaded sleeves (10) are rotationally connected with a reference plate (11), a sliding groove (12) is formed in the reference plate (11), and a moving mechanism (13) is connected with the sliding groove (12).

3. A fracture fixation clamp as in claim 2, wherein: the moving mechanism (13) comprises a sliding block (14) which is arranged on the reference plate (11) and is in sliding connection with the reference plate, a fixed sleeve (15) is fixedly connected to the sliding block (14), a plurality of groups of connecting sleeves (16) are fixedly connected to the sliding block, connecting rods (17) are connected to the connecting sleeves (16) in a sliding manner, extrusion blocks (18) are fixedly connected between the connecting rods (17), and fixing bolts (19) which are rotationally connected with the fixed sleeves (15) are connected to the extrusion blocks (18) in a threaded manner.

4. A fracture fixation clamp as in claim 3, wherein: the limiting assembly (7) comprises a moving block (20) fixedly connected with the sliding block (14) and slidingly connected with the reference plate (11), a telescopic pipe (21) fixedly connected with one end of the moving block (20) is arranged, the other end of the telescopic pipe (21) is fixedly connected with the reference plate (11) close to the top end, the telescopic pipe (21) is slidingly connected with a limiting shaft (22), the limiting shaft (22) is fixedly connected with a butt joint block (23), an auxiliary sleeve (24) is fixedly connected with the butt joint block (23), a handle (25) is fixedly connected with the auxiliary sleeve (24), and an intramedullary nail (26) is slidingly connected with the auxiliary sleeve.

5. A fracture fixation clamp as in claim 1, wherein: a torsion spring is arranged between the fixing clamp and the rotating shaft (3), and the torsion force of the torsion spring is small.

6. A fracture fixation clamp as in claim 2, wherein: a plurality of groups of operation notches are formed in the rotating block (9).

7. A fracture fixation clamp as in claim 2, wherein: one side of the reference plate (11) is provided with scale marks.

8. A fracture fixation clamp as in claim 3, wherein: a rubber pad is arranged on one side of the extrusion block (18) close to the sliding block (14).

9. A fracture fixation clamp as in claim 4, wherein: the limiting shaft (22) is made of wear-resistant metal.

10. A fracture fixation clamp as in claim 4, wherein: an anti-skid sleeve is sleeved on the handle (25).