CN108938025A - A kind of toroid locker fixed for bone tendon - Google Patents

Abstract

The invention discloses a kind of toroid lockers fixed for bone tendon, solve the problems, such as many and diverse operation knotting, improve procedure efficiency.The present invention includes locking plate and loop coil, which is made of a closed litzendraht wire, is provided with tubular inner-cavity structure；The litzendraht wire includes truncated end, midium line segment and buttock line end three parts, and multiple point of entrance are provided on midium line segment；There are four threading holes for setting on the locking plate, and the truncated end of the litzendraht wire is penetrated by threading hole to be connected on locking plate；Truncated end is penetrated into the tubular inner cavity of litzendraht wire by point of entrance and is stretched out from point of entrance by the truncated end of the litzendraht wire for being connected with locking plate, buttock line end is penetrated into the tubular inner cavity of litzendraht wire by point of entrance and is stretched out from point of entrance by another buttock line end being connected on the litzendraht wire of locking plate, it forms loop coil and entangles mobile tendon, which can be according to practical preset parameter movement, regulating winding size.

Description

An annular wire lock device for bone tendon fixation

technical field

The invention relates to the technical field of medical devices, in particular to a fixation device for bone and bone tendon, single-bundle binding of soft tissue and double-bundle binding of soft tissue.

Background technique

Closed circular suture mechanism, usually used in bone-to-bone tendon, single-bundle soft tissue and double-bundle soft tissue fixation surgery, such as ligament reconstruction surgery, which is to pass the bone tendon graft between the tibia and femur Fixed connection; it is widely used at present to use a suture thread to pre-thread the lock plate. After the tendon is pulled by the suture, the tendon is brought to the predetermined position through the bone tunnel. The suture needs to be tied and fixed on the side of the lock plate to pull the tendon implant. The disadvantage is that the knotting process is complicated and difficult to operate. , Bring trouble to the doctor, and operation time is long, and suture thread fatigue life is short.

Contents of the invention

The technical problem to be solved by the present invention is to address the shortcomings of the above-mentioned prior art, and disclose a circular wire locking device for tendon fixation, which solves the complicated knotting problem and improves the operation efficiency.

The technical solution adopted by the present invention to solve the technical problem is: a circular wire lock device for bone tendon fixation, comprising a lock plate; a ring coil is connected to the lock plate, and the ring coil consists of a It is composed of a closed braided wire, and the braided wire is provided with a tubular lumen structure;

The braided wire includes three parts: a truncated end, a middle segment and a tail end, and a plurality of penetration points are set on the middle segment, and the truncated end and the tail end can respectively enter the tubular shape through the corresponding penetration points. in the lumen;

The lock plate is provided with four threading holes, and the truncated end of the braided wire is penetrated and connected to the lock plate through the threading holes;

The truncated end of the braided wire connected with the lock plate passes through the penetration point and penetrates the truncated end into the tubular inner cavity of the braided wire and protrudes from the penetration point. The other end of the tail on the line passes through the penetration point and the end of the tail is passed into the tubular inner cavity of the braided wire and protrudes from the insertion point to form a loop to enclose the mobile tendon, and the loop is connected to the The locking plate can move and adjust the size of the coil according to the actual preset parameters, so that the locking plate can be fixed on the cortical bone at the end of the bone after passing through the bone tunnel to achieve the fixation effect;

Wherein the truncated end and the tail wire end protruding from the outside of the annular coil can be cut off from the penetration point by scissors, and the connection between the penetration point and the penetration point can be sewed by a suture needle and suture thread.

As a preferred embodiment of the present invention, the inner diameter of the threading hole for connecting the ring coil on the lock plate is larger than the outer diameter of the ring coil, so that the lock plate can move freely on the ring coil.

As a preferred embodiment of the present invention, the threading holes are arranged symmetrically at the tail ends of the corresponding two sides of the striker plate, and can be used to connect other braided wires or to hinge other striker plates.

As a preferred embodiment of the present invention, the braided wire is made of high-molecular polyethylene material or polyester and high-molecular polymer material.

As a preferred embodiment of the present invention, the locking plate can be made of metal, titanium alloy or plastic material.

As a preferred embodiment of the present invention, the number of threading holes provided on the lock plate can also be set to 2N, where 1<N<5 is a natural number.

As a preferred embodiment of the present invention, the shape of the threading hole may be circular, square or elliptical.

Compared with the prior art, the present invention has the following advantages:

The present invention discloses an annular wire locking device for osseous tendon fixation, through the tubular inner cavity structure and the penetration point provided on a closed braided wire connected to the locking board, it is convenient to cut off the braided wire The end and tail line segments penetrate into the tubular lumen through the penetration point, and the inner diameter of the ring coil can be adjusted arbitrarily according to the preset parameters. It is easy to operate, avoids complicated surgical knotting process, and improves surgical efficiency. At the same time, the fatigue life of the suture is reduced.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of embodiment of the present invention;

Fig. 2 is a partial schematic view of the penetration point of the braided wire entering/exiting the tubular lumen according to a specific embodiment of the present invention;

Fig. 3 is a schematic diagram of the operation of the threading tool entering the tubular lumen of the braided wire according to a specific embodiment of the present invention;

4 and 5 are schematic diagrams of the operation of the truncated end of a specific embodiment of the present invention entering the tubular lumen through a threading tool;

Fig. 6 is a structural schematic diagram of a truncated end passing through a tubular lumen according to a specific embodiment of the present invention;

Fig. 7 is a schematic diagram of a locking plate that can move on the ring coil according to a specific embodiment of the present invention;

8 and 9 are schematic diagrams of the operation of the end of the tail thread passing through the threading tool and passing out of the tubular lumen according to a specific embodiment of the present invention;

Fig. 10 is a schematic diagram of the operation of the cut-off ends and the suturing process at the connection between the end of the tail and the penetration point according to a specific embodiment of the present invention.

Explanation of reference signs:

1-loop coil, 2-truncated end, 3-tail wire end, 4-lock plate, 5-piercing point, 6-piercing point, 7-threading tool, 9-middle segment, 10-hook, 15- Piercing point, 16-threading point, suture-23, 25-suture needle, 30-threading hole, 31-threading hole, 32-threading hole, 33-threading hole.

Detailed ways

Describe the specific embodiment of the present invention below in conjunction with accompanying drawing and embodiment:

It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention Any modification of the structure, change of the proportional relationship or adjustment of the size shall still fall within the scope of the technical content disclosed in the present invention without affecting the effect and the purpose of the present invention. within the scope covered.

As shown in Figures 1 to 10, it shows a specific embodiment of the present invention; as shown in the figure, a ring-shaped wire locking device for bone tendon fixation disclosed by the present invention includes a locking plate 4; its characteristics In that: the locking plate 4 is connected with a ring coil 1, and the ring coil 1 is composed of a closed braided wire, and the braided wire is provided with a tubular inner cavity structure;

As shown in the figure, the braided wire includes three parts: a truncated end 2, a middle line segment 9 and a tail end 3. A plurality of penetration points 6, 5, 16, 15 are arranged on the middle line segment 9. The truncated end 2 and tail wire end 3 can respectively enter into the tubular inner cavity through the corresponding penetration points 6, 5, 16, 15;

As shown in the figure, the lock plate 4 is provided with four threading holes 30, 31, 32, 33, and the truncated end 2 of the braided wire is connected to the lock plate 4 through the threading holes 30, 31;

As shown in the figure, the truncated end 2 of the braided wire connected with the locking plate 4 passes through the penetration points 6 and 5, and the truncated end 2 is inserted into the tubular lumen of the braided wire and passes through the penetration point 5. Stretch out, another tail wire end 3 on the braided line that is connected with locking plate 4 passes through described penetration point 16,15 and tail wire end 3 is penetrated in the tubular inner chamber of braided wire and passes through The entry point 15 protrudes to form an annular coil 1 to cover the mobile tendon. The annular coil 1 is connected to the locking plate 4 and can move and adjust the size of the coil according to the actual preset parameters, so that the locking plate 4 is fixed in the bone tunnel after passing through the bone tunnel. Cortical bone at the end of the bone to achieve fixation;

Wherein the truncated end 2 and the tail end 3 protruding from the outside of the loop coil 1 can be cut off from the penetration point by scissors, and the connection between the penetration point and the penetration point can be sutured by a suture needle 25 and a suture thread 23 .

Preferably, as shown in the figure: the inner diameter of the threading holes 30 and 31 connecting the loop coil 1 on the lock plate 4 is larger than the outer diameter of the loop coil 1 , so that the lock plate 4 can move freely on the loop coil 1 .

Preferably, as shown in the figure: the threading holes 32 , 33 are symmetrically arranged at the rear ends of the corresponding two sides of the striker plate 4 , and can be used to connect other braided wires or to hinge other striker plates.

Preferably, as shown in the figure: the braided wire is made of high-molecular polyethylene material or polyester and high-molecular polymer material.

Preferably, as shown in the figure: the locking plate 4 can be made of metal, titanium alloy or plastic material.

Preferably, as shown in the figure: the number of threading holes provided on the locking plate 4 can also be set to 2N, where 1<N<5 is a natural number.

Preferably, as shown in the figure: the shape of the threading hole may be circular, square or oval.

Preferably, as shown in the figure: the suture 23 is made of high molecular polyethylene material.

An embodiment of the present invention: the locking plate 4 is set at 1/3 of the total length from the end of the tail 3 to set the penetration point 5, the penetration point 6 is close to the end of the tail 3, and the penetration point 5 and the penetration The point 6 is set on the middle segment 9 of the braided wire. One end of the threading tool 7 is provided with an operating handle, and the long rod part of the threading tool 7 is a circular long straight rod, which is thin and straight enough to pass through the middle section 9 of the braided line smoothly. A hinged hook is provided at the top, which is convenient for hooking the end part of the braided wire to be inserted, and smoothly passes through the inner cavity of the middle segment 9 of the braided wire; when the size of the relevant segment is determined, the threading tool 7 starts The threading point 5 enters the tubular lumen and passes out from the threading point 6. The hook on the head of the threading tool hooks the end part of the truncated end 2, and the operator pulls out the threading tool in the opposite direction. The truncated end 2 can be successfully inserted into the lumen of the middle line segment 9 and overlapped with the lumen wall, and passed out from the piercing point 5, and the tail wire end 3 can be pierced from the piercing point 16 in the same operation , and pass through the penetration point 15, cut off the truncated end 2 and the tail wire end 3 protruding from the outside to form an annular coil 1 with a locking plate 4, and tighten the annular coil manually or mechanically , it is preferable to use a tension meter, which can accurately measure and determine the inner diameter of the ring; finally, it is sutured at the joint with the penetration point through a suture needle and suture thread, as shown in Figure 10, the first suture fixed section covers the The holed penetration point 6 of the truncated end 2, the second suture fixing point covers the cut-off point of the truncated end 2 and the tail end 3, and the positions of several parts are respectively located at the penetration points 5, 6 on the braided line, 15 and 16. As shown, the position is unlimited and ultimately depends on the size of the toroid.

The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and can also be made within the scope of knowledge of those of ordinary skill in the art without departing from the gist of the present invention. kind of change.

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

Claims (7)

1. A circular wire locking device for bone tendon fixation, comprising a locking plate (4); it is characterized in that: the locking plate (4) is connected with an annular coil (1), and the annular coil ( 1) It is composed of a closed braided wire, and the braided wire is provided with a tubular lumen structure; The braided wire includes three parts: a truncated end (2), a middle segment (9) and a tail end (3), and a plurality of penetration points (6, 5, 16, 15) are arranged on the middle segment (9). ), the truncated end (2) and the tail end (3) can respectively enter the tubular lumen through the corresponding penetration points (6, 5, 16, 15); The said lock plate (4) is provided with four threading holes (30, 31, 32, 33), and the truncated end (2) of the braided wire is connected to the lock plate (30, 31) through the threading holes (30, 31). 4) on; The truncated end (2) of the braided wire connected with the locking plate (4) is passed through the penetration point (6, 5) to pass the truncated end (2) into the tubular inner cavity of the braided wire and from the threaded The entry point (5) stretches out, and the other tail end (3) on the braided line connected with the lock plate (4) passes through the entry point (16, 15) to pass the tail end (3) into the tubular lumen of the braided wire and protrude from the penetration point (15), forming an annular coil (1) to enclose the mobile tendon, and the annular coil (1) is connected to the lock plate (4) The preset parameters move and adjust the size of the coil, so that the locking plate (4) is fixed on the cortical bone at the end of the bone after passing through the bone tunnel, so as to achieve the fixation effect; Wherein the truncated end (2) and the tail end (3) protruding from the outside of the annular coil (1) can be cut off from the part of the penetration point by scissors, and it is connected with the penetration point by a suture needle (25) and a suture thread (23). The in-point connection is sutured. 2. A ring wire locking device for osteotendon fixation as claimed in claim 1, characterized in that: the threading holes (30, 31) of the ring coil (1) are connected on the lock plate (4) The inner diameter of the inner diameter is larger than the outer diameter of the annular coil (1), so that the locking plate (4) can move freely on the annular coil (1). 3. A circular wire locking device for osteotendon fixation according to claim 1, characterized in that: said threading holes (32, 33) are symmetrically arranged on the corresponding two sides of the locking plate (4) The tail end can be used to connect other braided wires or to hinge other striker plates. 4. An annular wire locking device for osteotendon fixation according to claim 1, wherein the braided wire is made of high molecular polyethylene material or polyester and high molecular polymer material. 5. A circular wire locking device for osteotendon fixation according to claim 1, characterized in that: the locking plate (4) can be made of metal, titanium alloy or plastic material. 6. A ring wire locking device for osteotendon fixation according to claim 1, characterized in that: the number of threading holes provided on the locking plate (4) can also be set to 2N, wherein 1 <N<5 natural numbers. 7. An annular wire locking device for osteotendon fixation according to claim 6, characterized in that: the shape of the threading hole can be circular, square or elliptical.