CN201551378U - Intercondylar spine fracture reduction forceps - Google Patents

Abstract

The utility model discloses a reduction forceps for intercondylar spine fractures, which comprises a jaw, a forceps body, a handle, a traction cable, a compression spring and a spring fixing seat, the handle includes a fixed handle and a movable handle, and the movable handle and the fixed handle are hinged to form a lever structure , the jaws include movable pliers blades, the movable pliers blades are hinged with the pliers body to form a lever structure, the two ends of the traction cable are respectively connected with the movable handle and the power arm of the movable pliers blade, the spring fixing seat is fixedly connected with the pliers body, and the traction cable runs through the spring The fixed seat, the two ends of the compression spring are respectively fixedly connected with the power arm of the movable forceps blade and the spring fixed seat; during the operation, use this instrument to clamp the fractured intercondylar spine and push it back to the part where it fell off. Auxiliary facilities such as a small hammer can also be used Impact on the forceps to help the fracture reset; only the jaws of this device can be opened and closed, and the forceps is a slender structure. When it is applied to small wound surgery, it can penetrate into the affected area and operate smoothly. It is not only simple in structure and convenient in operation, but also It saves time and labor, and the fracture reduction is quick and the effect is good.

Description

Intercondylar spine fracture reduction forceps

technical field

The utility model relates to the field of medical instruments, in particular to a reduction forceps for intercondylar spine fractures.

Background technique

With the development of arthroscopic technology, arthroscopic treatment of tibial intercondylar spine fractures has been more and more widely used clinically due to its advantages of less trauma, simple operation, reliable fixation, fast postoperative recovery, and fewer complications. During the treatment, the fractured intercondylar spine is first reduced with instruments, and then a positioning pin is used to penetrate from the lateral tibial condyle to the medial femoral condyle to temporarily fix the site, and finally a hollow needle is nailed outside the positioning pin. Due to the small trauma of this type of operation, the reduction operation of the intercondylar spine fracture site becomes the prerequisite to ensure the smooth operation of the operation. In the existing arthroscopic treatment of tibial intercondylar spine fractures, doctors often use probes to place the fractures into place. The top of the intercondylar spine returns to its original position. Its defect is that although the probe can withstand the fractured intercondylar spine, it cannot be clamped. At the same time, the force is limited and it is easy to bend. It also increases the pain of the patient and affects the recovery of the patient to a certain extent in the future.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of intercondylar spine fracture reduction forceps, which can quickly and effectively reset the fractured intercondylar spine in arthroscopic treatment of tibial intercondylar spine fractures, and has a simple structure and is easy to use , the reset effect is good.

The intercondylar spine fracture reduction forceps of the utility model comprises jaws, forceps body, handle and traction cable, and described handle comprises fixed handle and movable handle, and described fixed handle and forceps body are made into one, and described movable handle is hinged with fixed handle Form a lever structure, the jaws include movable pliers blades, the movable pliers blades are hinged with the pliers body to form a lever structure, the two ends of the traction rope are respectively connected with the movable handle resistance arm and the movable pliers blade power arm, the movable The handle exerts tension on the movable pliers blade through the traction cable;

It also includes a compression spring and a spring fixing seat, the spring fixing seat is fixedly connected with the pliers body, the traction cable runs through the spring fixing seat in the longitudinal direction, and the two ends of the compression spring are respectively fixed to the movable pliers blade power arm and the spring fixing seat Connect and apply pressure preload to the movable pliers.

Further, it also includes a fixed pulley, the fixed pulley, the traction cable, the compression spring and the spring holder are all located in the clamp body, the rotating shaft of the fixed pulley is perpendicular to the rotation plane of the movable handle, and the traction cable forms a right angle around the fixed pulley shape;

Further, the upper leaf and the lower leaf of the jaw are both movable pincer leaves and are hinged to each other to form a lever structure;

Further, the upper leaf of the jaw is a movable pincer leaf and is hinged with the pliers body to form a lever structure, and the lower leaf of the jaw is integrated with the pliers body;

Further, the lower leaves of the jaws are movable pincers leaves and are hinged with the pliers body to form a lever structure, and the upper leaves of the jaws are integrated with the pliers body.

The beneficial effect of the utility model is: the intercondylar spine fracture reduction forceps of the utility model comprises jaws, forceps body, handle, traction cable, compression spring and spring fixing seat, and the handle comprises a fixed handle and a movable handle. The fixed handle is integrated with the pliers body, the movable handle is hinged with the fixed handle to form a lever structure, the jaws include movable pliers leaves, the movable pliers leaves are hinged with the pliers body to form a lever structure, and the two ends of the traction rope are respectively It is connected with the resistance arm of the movable handle and the power arm of the movable pliers blade. The movable handle exerts a pulling force on the movable pliers blade through the traction cable, and the spring holder is fixedly connected with the pliers body. The two ends of the compression spring are respectively fixedly connected with the power arm of the movable forceps blade and the spring fixing seat, and apply a pre-tightening force to the movable forceps blade; Push it back to the part where it fell off, and if necessary, use auxiliary facilities such as a small hammer to exert impact force on the pliers, so that a good reduction of the intercondylar spine can be achieved; only the jaws of this instrument can be opened and closed, and the pliers body is The slender structure, when used in small wound surgery, can go deep into the affected area and operate smoothly. Not only the structure is simple, the operation is convenient, but also the operation saves time and effort, and the fracture reduction is rapid and the effect is good.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a partial sectional view of Fig. 1;

Fig. 3 is an enlarged view of part A in Fig. 2 .

Detailed ways

Fig. 1 is a schematic structural view of the utility model; Fig. 2 is a partial sectional view of Fig. 1; Fig. 3 is an enlarged view of part A in Fig. 2 . as the picture shows:

The intercondylar spine fracture reduction forceps of the present embodiment comprises a jaw 1, a forceps body 2, a handle, a traction cable 8, a compression spring 3 and a spring holder 9, the handle comprises a fixed handle 4 and a movable handle 5, and the fixed handle 4 It is integrated with the pliers body 2, and the movable handle 5 is hinged with the fixed handle 4 to form a lever structure. The movable handle 5 is connected to the resistance arm of the movable tongs and connected to the power arm of the movable tongs. The movable handle 5 applies a pulling force to the movable tongs through the traction cable 8. The spring holder 9 is fixed with the body of the tongs. The power arm of the leaf and the spring holder 9 are fixedly connected and apply a pre-tightening force to the movable forceps blade; The jaws are closed and clamp the intercondylar spine to be reset. At the same time, the compression spring fixedly connected with the movable forceps leaf is compressed. When the jaws need to be opened, the handle is opened to relax the traction cable, the compression spring rebounds, and the jaws It can be opened; through this instrument, the fractured intercondylar spine can be clamped and pushed back to its original position very conveniently. If necessary, a small hammer can be used to exert impact force on the tail end of the instrument to further help the intercondylar spine to reset. It is not only convenient for the operator to operate, but also greatly improves the one-time success rate of intercondylar spine fracture reduction.

As a further improvement, in this embodiment, a fixed pulley 10 is also included, and the fixed pulley 10, the traction cable 8, the compression spring 3 and the spring holder 9 are all located in the pliers, and the rotating shaft of the fixed pulley is perpendicular to the rotation plane of the movable handle and Fixed with the caliper body, the traction cable bypasses the fixed pulley to form a right-angle shape; when in use, the fixed pulley acts as a guide for the traction cable, allowing the traction cable to smoothly realize direction adjustment and save labor.

As a further improvement, in this embodiment, the upper blade 6 of the jaws is a movable blade and is hinged with the pliers body to form a lever structure, and the lower blade 7 of the jaws is integrated with the pliers body.

Of course, in this embodiment, the structure of the jaws can also be in the following two forms: 1. The upper and lower leaves of the jaws are both movable pincers leaves and are hinged to each other to form a lever structure; 2. The lower leaves of the jaws are movable pincers The leaves are hinged with the pliers to form a lever structure, and the upper leaves of the jaws are integrated with the pliers.

It should be noted that, in this embodiment, the movable handle is located on the inner side of the fixed handle, and the inner side mentioned here is the side near the jaw of the fixed handle. Of course, the movable handle is located on the outside of the fixed handle, which can also realize the utility model. The purpose and principle are the same as above, and will not be repeated here.

Finally, although the utility model has been described in detail with reference to the preferred embodiment, those skilled in the art should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the technical solution of the utility model. The purpose and scope should be included in the scope of the claims of the present utility model.

Claims (5)

1. an intercondyloid spine reduction of the fracture clamps, it is characterized in that: comprise jaw, caliper, handle and hauling rope, described handle comprises fixed handle and movable handle, described fixed handle and caliper are made one, the hinged formation lever construction of described movable handle and fixed handle, described jaw comprises the adjustable clamp leaf, the hinged formation lever construction of described adjustable clamp leaf and caliper, the two ends of described hauling rope link to each other with adjustable clamp leaf power arm with movable handle resistance arm respectively, and described movable handle adds pulling force by hauling rope to the adjustable clamp foliar spray;

Also comprise compression spring and spring fixed seat, described spring fixed seat is fixedlyed connected with caliper, described hauling rope longitudinally runs through spring fixed seat, and the two ends of described compression spring are respectively with adjustable clamp leaf power arm and spring fixed seat is fixedlyed connected and to adjustable clamp foliar spray pressurization pretightning force.

2. intercondyloid spine reduction of the fracture pincers according to claim 1, it is characterized in that: also comprise fixed pulley, described fixed pulley, hauling rope, compression spring and spring fixed seat all are positioned at caliper, the rotating shaft of described fixed pulley is perpendicular to the rotational plane of movable handle, and described hauling rope is walked around fixed pulley and formed rectangular shaped.

3. intercondyloid spine reduction of the fracture pincers according to claim 2, it is characterized in that: the last leaf of described jaw and inferior lobe are the adjustable clamp leaf and the formation lever construction that is hinged.

4. the intercondyloid spine reduction of the fracture according to claim 2 pincers is characterized in that: on the described jaw leaf be the adjustable clamp leaf and with the hinged formation lever construction of caliper, described jaw inferior lobe and caliper are made one.

5. the intercondyloid spine reduction of the fracture according to claim 2 pincers is characterized in that: described jaw inferior lobe be the adjustable clamp leaf and with the hinged formation lever construction of caliper, leaf and caliper are made one on the described jaw.

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