CN211560200U

CN211560200U - Adjustable locking device for fixing anterior and posterior cruciate ligaments of knee joint

Info

Publication number: CN211560200U
Application number: CN201920586774.5U
Authority: CN
Inventors: 高建华; 高立华; 刘海波; 袁浩; 陈志超
Original assignee: Changzhou Huazhong Biotechnology Co ltd
Current assignee: Changzhou Huazhong Biotechnology Co ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-09-25
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a be used for fixed adjustable locking device of cruciate ligament around knee joint, the utility model discloses contain hasp board, adjustable line and pull wire, be provided with five through wires holes on the hasp board, both ends end of a thread passes two through wires holes side by side respectively after the adjustable line fifty percent discount, knot after the reservation position and form the hasp, wear out and pass the hasp from the through wires hole after passing ligament tissue with two end of a thread, the pull wire spreads into in the through wires hole at both ends into, drive the passageway on the hasp board passes the shin bone through the pull wire, take out the pull wire and leave, tighten up through adjustable line and fix the ligament to suitable position, the fixed adjustable line of knoing is fixed on the hasp board with the ligament. Solves the problem of complicated operation knotting and improves the operation efficiency.

Description

Adjustable locking device for fixing anterior and posterior cruciate ligaments of knee joint

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an adjustable locking device that is used for fixed of knee joint front and back cruciate ligament.

Background

The anterior cruciate ligament, also known as the anterior cruciate ligament, is located in the knee joint and connects the femur and the tibia, and mainly functions to limit the excessive forward displacement of the tibia, and it cooperates with other structures in the knee joint to maintain the stability of the knee joint, which is one of the main structures for maintaining the stability of the knee joint, so that a person can complete various complex and difficult lower limb movements.

The rupture of the anterior cruciate ligament causes the knee joint to be unstable, and the improper treatment causes the serious dysfunction of the knee joint. Because the injury violence is large, other main structural injuries are often combined, the treatment can be delayed due to improper diagnosis and treatment, meanwhile, because the mechanical function of the anterior cruciate ligament is increasingly emphasized, and the functional instability caused by the injury causes the knee joint not to meet the requirements of daily life and movement, and can cause a series of sequela lesions of the knee joint, the operation treatment is needed to reconstruct the ligament and the function of the ligament.

At present, interface screws or lock catch plates are commonly used for fixing ligaments/substitutes in ligament reconstruction surgery, a lock catch plate which is widely applied at present is pre-penetrated on the lock catch plate by using a suture line, the suture line is a non-closed line, the lock catch plate is fixed at a preset position through a pre-established bone tunnel by a surgical instrument, the ligaments/substitutes are pulled to the preset position through the bone tunnel after the ligaments/substitutes are pulled by using the suture line, the suture line needs to be knotted and fixed at one side of the lock catch plate and pulls a bone tendon implant, and the ligament reconstruction surgery has the defects of complex surgical knotting process, difficulty in operation, inconvenience brought to doctors and long surgery time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough among the above-mentioned prior art, disclose an adjustable locking device that is used for cruciate ligament fixed around the knee joint, solved numerous and diverse operation problem of knoing, improved operation efficiency.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an adjustable locking device that is used for cruciate ligament fixed around knee joint, contains hasp board (1), be connected with on hasp board (1) and adjust line (2) and pull wire (3), the through wires hole that sets up on hasp board (1), adjust line (2) through the through wires hole, form the coil with adjustable size with hasp board (1) cooperation after knoing. The traction line (3) is used as a traction lock catch plate and a connected ligament to pass through a channel on the tibia.

Preferably, the number of the threading holes arranged on the lock catch plate (1) is 2N, wherein 1 < N < 5 natural numbers.

Preferably, 5 threading holes are formed in the lock catch plate (1), namely a threading hole I (4), a threading hole III (8) and a threading hole II (7), wherein two threading holes are formed in the threading hole I (4) and the threading hole III (8).

Preferably, the two ends of the adjustable line (2) penetrate through the two threading holes of the first threading hole (4) respectively, a knot is formed below the locking plate (1) after a certain position is reserved, an adjusting line node (5) and a locking coil (6) are formed, the two ends of the adjusting line (2) penetrate through the ligament (9) simultaneously and then penetrate through the second threading hole (7), and then penetrate through the locking coil (6) formed by the adjusting line and match with the locking plate (1) to form the adjustable coil.

Preferably, the threading holes (8) are symmetrically arranged at the tail ends of the two corresponding sides of the locking plate (1) and can be connected with other braided wires or hinged with other locking plates.

Preferably, the shape of the threading hole can be round, square or oval.

Preferably, the inner diameters of the first threading hole (4), the third threading hole (8) and the second threading hole (7) are larger than the outer diameters of the adjusting wire (2) and the traction wire (3), so that the adjusting wire (2) can freely move on the locking plate (1) to adjust the size of the coil.

Preferably, the locking plate (1) is made of metal, titanium alloy or plastic material.

Preferably, the adjusting wire (2) and the traction wire (3) are made of high molecular polyethylene materials or polyester and high molecular polymer materials.

Compared with the prior art, the utility model has the following advantage:

the utility model discloses an adjustable locking device that is used for cruciate ligament fixed around knee joint, the cooperation of knoing through adjustable line (2) and hasp board (1) forms the coil that the size is convenient for adjust, tubular inner chamber structure and the hole of wearing that a pull wire that hasp board (1) is connected set up from the shin bone penetrate, the convenient cut-off end and the tail wire section of braided wire penetrate to tubular inner chamber through wearing the hole in, and can adjust toroidal coil's internal diameter size wantonly according to predetermined parameter, the operation is convenient, numerous and diverse operation process of knoing has been avoided, the efficiency of performing the operation is improved, the fatigue life of stylolite has been reduced simultaneously.

Drawings

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

FIG. 2 is an operation diagram of the adjusting wire penetrating into the locking plate of the present invention;

FIG. 3 is a schematic view of the operation of the adjusting wire of the present invention knotted after penetrating into the locking plate;

FIG. 4 is a schematic view of the operation of the adjustment wire of the present invention passing through the ligament;

FIG. 5 is a schematic view showing the operation of the adjusting thread passing through the threading hole of the locking plate after passing through the ligament;

fig. 6 is an operation schematic diagram of the adjusting wire passing through the lock catch of the present invention;

FIG. 7 is a schematic view of the pull wire of the present invention passing through the threading hole of the locking plate;

fig. 8 is a schematic view of the overall structure of the present invention.

Description of reference numerals:

1-locking plate, 2-adjusting line, 3-pulling line, 4-first threading hole, 5-adjusting line node, 6-locking coil, 7-second threading hole, 8-third threading hole, and 9-ligament.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples:

it should be noted that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that the present invention can achieve.

As shown in fig. 1 to 7, which illustrate a specific embodiment of the present invention; as shown in the figure, an adjustable locking device for fixing anterior and posterior cruciate ligaments of knee joints comprises a locking plate 1, wherein an adjusting line 2 and a traction line 3 are connected to the locking plate 1, a threading hole is formed in the locking plate 1, the adjusting line 2 passes through the threading hole, and a coil with adjustable size is formed by matching the knotted adjusting line with the locking plate 1. The traction line 3 is used as a passage for the traction lock catch plate and the connected ligament to pass through the tibia.

Preferably, the number of the threading holes arranged on the lock catch plate 1 is 2N, wherein 1 < N < 5 natural numbers.

Preferably, 5 threading holes are arranged on the lock catch plate 1, namely a threading hole I4, a threading hole III 8 and a threading hole II 7, wherein two threading holes are arranged in the threading hole I4 and the threading hole III 8.

Preferably, two ends of the adjustable line 2 respectively penetrate through two threading holes of the first threading hole 4, a certain position is reserved and then knotted below the locking plate 1 to form an adjustable line node 5 and a locking coil 6, two ends of the adjustable line 2 simultaneously penetrate through the ligament 9 and then penetrate through the second threading hole 7, and then penetrate through the locking coil 6 formed by the adjustable line and form an adjustable coil matched with the locking plate 1.

Preferably, the three threading holes 8 are symmetrically arranged at the tail ends of the two corresponding sides of the locking plate 1, and can be connected with other braided wires or hinged with other locking plates.

Preferably, the shape of the threading hole can be round, square or oval.

Preferably, the inner diameters of the first threading hole 4, the third threading hole 8 and the second threading hole 7 are larger than the outer diameters of the adjusting wire 2 and the traction wire 3, so that the adjusting wire 2 can freely move on the lock catch plate 1, and the size of the coil can be adjusted.

Preferably, the latch plate 1 is made of metal, titanium alloy or plastic material.

Preferably, the adjusting wire 2 and the pulling wire 3 are made of high molecular polyethylene material or polyester and high molecular polymer material.

The utility model discloses a use: two ends of the adjusting wire 2 penetrate into two threading holes of a first threading hole 4 on the lock catch plate 1, the reserved part is knotted below the lock catch plate 1 after being positioned, two ends of the adjusting wire 2 simultaneously penetrate through the ligament 9, then penetrate out of a second threading hole 7, penetrate through a lock catch coil 6 formed by knotting, and form a size-adjustable loose catch with the lock catch plate 1; the traction line 3 penetrates through the third threading hole 8, the catch plate 1 and the ligament 9 pass through a bone tunnel established on the tibia through the traction line 3 and the adjusting line 2, the traction line 3 is taken down, the position of the catch plate 1 is adjusted to clamp the bone tunnel opening, the ligament 9 is adjusted to a proper position through tightening the adjusting line 2, and the ligament 9 is knotted to complete the fixation of the ligament 9.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.

Claims

1. An adjustable locking device for fixing anterior and posterior cruciate ligaments of knee joint comprises a locking plate (1), and is characterized in that: the adjusting thread lock is characterized in that an adjusting thread (2) and a traction thread (3) are connected to the lock catch plate (1), a threading hole is formed in the lock catch plate (1), and the adjusting thread (2) is matched with the lock catch plate (1) to form a coil with adjustable size after knotting through the threading hole.

2. The adjustable locking device for anterior-posterior cruciate ligament fixation of knee joint of claim 1, wherein: the number of the threading holes formed in the lock catch plate (1) is 2N, wherein N is more than 1 and less than 5.

3. The adjustable locking device for anterior-posterior cruciate ligament fixation of knee joint of claim 2, wherein: the lock catch plate (1) is provided with 5 threading holes which are a first threading hole (4), a third threading hole (8) and a second threading hole (7), wherein the first threading hole (4) and the third threading hole (8) are provided with two threading holes.

4. An adjustable locking device for anterior-posterior cruciate ligament fixation of knee joint according to claim 3, wherein: two ends of the adjusting line (2) penetrate through two threading holes of the first threading hole (4) respectively, are knotted below the locking plate (1) after a certain position is reserved, and form an adjusting line node (5) and a locking coil (6), the two ends of the adjusting line (2) penetrate through the ligament (9) and then penetrate through the second threading hole (7), and then penetrate through the locking coil (6) formed by the adjusting line and match with the locking plate (1) to form an adjustable coil.

5. An adjustable locking device for anterior-posterior cruciate ligament fixation of knee joint according to claim 3, wherein: the threading holes III (8) are symmetrically arranged at the tail ends of the two corresponding sides of the lock catch plate (1) and can be connected with other braided wires or hinged with other lock catch plates.

6. The adjustable locking device for anterior-posterior cruciate ligament fixation of knee joint of claim 1, wherein: the threading hole can be circular, square or oval.

7. The adjustable locking device for anterior-posterior cruciate ligament fixation of claim 4, wherein: the inner diameters of the first threading hole (4), the third threading hole (8) and the second threading hole (7) are larger than the outer diameters of the adjusting wire (2) and the traction wire (3), so that the adjusting wire (2) can freely move on the lock catch plate (1) to adjust the size of the coil.

8. The adjustable locking device for anterior-posterior cruciate ligament fixation of knee joint of claim 1, wherein: the lock catch plate (1) is made of metal or plastic materials.