CN108992158A - A kind of controllable fracture closed reduction device - Google Patents

Abstract

The invention discloses an adjustable fracture closed reduction device, which relates to the technical field of medical devices. The invention includes a fracture reduction forceps A, which is movably connected with a connecting rod, and the other end of the connecting rod is detachably connected with a sleeve, and the sleeve A hydraulic telescopic cylinder is connected, and the hydraulic telescopic cylinder includes a cylinder barrel connected with a sleeve. A telescopic piston rod is arranged inside the cylinder barrel, and the other end of the piston rod is movably connected with a fracture reduction forceps B. The present invention has the advantages of simple structure and low operation difficulty. , Improve the advantages of surgical stability.

Description

An adjustable fracture closed reduction device

technical field

The invention relates to the technical field of medical devices, and more specifically relates to an adjustable fracture closed reduction device.

Background technique

Medical devices refer to instruments, equipment, utensils, in vitro diagnostic reagents and calibrators, materials, and other similar or related items that are directly or indirectly used on the human body, including required computer software. The effect is mainly obtained through physical means, not through pharmacological, immunological or metabolic means, or although these means are involved but only play an auxiliary role, the purpose is the diagnosis, prevention, monitoring, treatment or alleviation of diseases; the diagnosis of injury , monitoring, treatment, alleviation or functional compensation; examination, replacement, adjustment or support of physiological structures or physiological processes; life support or maintenance; pregnancy control; providing information for medical or diagnostic purposes by examining samples from the human body.

There are many kinds of medical devices for fracture treatment according to the different parts of use. Among them, the fracture reduction forceps is the most common. In order to meet the operation requirements, a double fracture reduction forceps has been manufactured, that is, the two reduction forceps are connected by a connecting mechanism. They are connected together and used in combination, but the connection mechanism in the existing double fracture reduction forceps is matched by the screw rod and the threaded cylinder, and the distance between the two reduction forceps can be adjusted by turning the screw rod to screw it into or out of the threaded cylinder , so as to facilitate surgical operation, but this structure has certain defects. The screw rod and the corresponding reset forceps are fixedly connected. When the screw rod is rotated, the corresponding reset forceps will be driven to rotate accordingly. There may be deviations in position. In order to make the two reset pliers in a state of mirror image symmetry, it is necessary to turn the screw at a certain angle to align the two reset pliers. However, there is a certain error in the distance between the two reset pliers, and the adjustment accuracy is low. The screw structure is used, and the operation is troublesome, time-consuming and laborious. The two reset pliers are basically fixedly connected together, which cannot be used at various angles, and is inconvenient to disassemble, so that different types of reset pliers cannot be replaced, and the practicability is relatively low.

Therefore, how to solve the above technical problems is of great practical significance to those skilled in the art.

Contents of the invention

The purpose of the present invention is: in order to solve the technical problems that the existing double-handle fracture reduction forceps use screw rods to adjust the distance between the two reset forceps, the adjustment accuracy is low, the operation is troublesome, time-consuming and labor-intensive, and the technical problems are low. The present invention provides an adjustable fracture closed reduction device.

The present invention specifically adopts the following technical solutions in order to achieve the above object:

An adjustable closed fracture reduction device, comprising fracture reduction forceps A, fracture reduction forceps A is movably connected with a connecting rod, the other end of the connecting rod is detachably connected with a sleeve, the sleeve is connected with a hydraulic telescopic cylinder, and the hydraulic telescopic cylinder includes a sleeve The cylinder barrel connected with the barrel is provided with a telescopic piston rod, and the other end of the piston rod is movably connected with a fracture reduction forceps B.

Further, the fracture reduction forceps A includes a reset arm A and a reset arm B hinged together by a hinge assembly, and the tops of the reset arm A and the reset arm B are both provided with needle cylinders for installing Kirschner wires.

Further, the limit rod is hinged at the bottom of the reset arm A, and one end of the limit rod close to the reset arm A is connected with a tension spring, the tension spring is located above the limit rod, and the other end of the tension spring is connected to the side end of the reset arm A, on the limit rod A number of limiting slots are evenly distributed along the length direction. The bottom of the reset arm B is provided with a tip that matches the limiting slots. The structure of the fracture reduction forceps B is the same as that of the fracture reduction forceps A.

Further, the center hinge of the fracture reduction forceps A is provided with a ball bearing A that cooperates with the connecting rod, and the center hinge of the fracture reduction forceps B is provided with a ball bearing B that cooperates with the piston rod.

Further, the sleeve is provided with an eccentric hole matched with the connecting rod, the center of the eccentric hole is located directly above or directly below the center of the sleeve, and the sleeve is threaded with a fastening screw for pressing the connecting rod.

Further, the piston rod is evenly distributed with several interval scale marks along the length direction of the piston rod.

Working principle: According to the needs of the operation, first adjust the distance between the fracture reduction forceps A and fracture reduction forceps B, and drive the fracture reduction forceps B to approach or move away from the fracture reduction forceps A through the piston rod in the hydraulic telescopic cylinder, and observe the distance scale line at the same time. Until the adjustment is accurate, then install two Kirschner wires on the fracture reduction forceps A and fracture reduction forceps B respectively, a total of four, then hold the cylinder or sleeve with one hand, and operate the fracture reduction forceps A with the other hand , implant the Kirschner wire into the broken end of the fracture for reduction and fixation, continue to operate the fracture reduction forceps B, and implant the Kirschner wire into the fracture end at a corresponding angle by rotating the fracture reduction forceps B for reduction and fixation, that is, the reduction and fixation of the fracture is completed Surgical operation.

The beneficial effects of the present invention are as follows:

1. The fracture reduction forceps A is movably connected with the connecting rod, so the fracture reduction forceps A can rotate 360° around the connecting rod, and at the same time, the other end of the connecting rod is detachably connected with a sleeve, that is, the fracture reduction forceps A can be lifted from the sleeve through the connecting rod. It is easy to disassemble and replace different types of reduction forceps for combined use. It has strong flexibility. The sleeve is connected with a hydraulic telescopic cylinder. The piston rod in the hydraulic telescopic cylinder is movably connected with the fracture reduction forceps B, so the fracture reduction forceps B can wrap around the piston rod. 360° rotation, so the fracture reduction forceps A and fracture reduction forceps B can be operated at different angles, and the distance between fracture reduction forceps A and fracture reduction forceps B can be adjusted through the hydraulic telescopic cylinder, which is convenient and quick to operate and saves time Labor-saving, spacing adjustment accuracy is not affected by the positions of fracture reduction forceps A and fracture reduction forceps B, which meets the requirements of use and greatly improves operational performance and practicability.

2. When operating fracture reduction forceps A or fracture reduction forceps B, adjust the positional relationship between the reset arm A and the reset arm B according to the surgical needs, because the tension spring at the side end of the reset arm A always has a certain force on the limit rod below. An upward pulling force keeps the limit rod against the bottom of the reset arm B all the time, and only needs to snap the tip of the bottom of the reset arm B into the limit card slot at the corresponding position on the limit rod, so that the reset arm A and the reset arm The position adjustment between the reset arm A and the reset arm B can be completed without any rotation between B, the structure is simple, and the operation is convenient and quick.

3. The center hinge of the fracture reduction forceps A is provided with a ball bearing A that matches the connecting rod, and the center hinge of the fracture reduction forceps B is provided with a ball bearing B that cooperates with the piston rod. The fracture reduction forceps A and fracture reduction forceps B realize 360° rotation, the friction coefficient is small and the wear is small when rotating, and it is also convenient to disassemble the fracture reduction forceps A from the connecting rod, or the fracture reduction forceps B from the piston rod It is convenient to replace different types of resetting forceps for combined use, which is convenient to operate, and has strong flexibility and applicability.

4. There is an eccentric hole in the sleeve that matches the connecting rod. The center of the eccentric hole is located directly above or directly below the center of the sleeve. According to the needs of the operation, there should be a certain relative height difference between the fracture reduction forceps A and the fracture reduction forceps B. Insert the connecting rod into the eccentric hole of the sleeve, so that the connecting rod and the piston rod are parallel to each other and not in a straight line, so the fracture reduction forceps A and fracture reduction forceps B respectively connected to the connecting rod and the piston rod form a height Poor, the structural design is ingenious and flexible, the sleeve is threaded with a fastening screw for pressing the connecting rod, which prevents the connecting rod from loosening or rotating during use, and is convenient for disassembly and assembly.

5. There are several interval scale lines evenly distributed on the piston rod in the length direction of the piston rod. The interval scale lines indicate the interval between fracture reduction forceps A and fracture reduction forceps B. When adjusting the distance between fracture reduction forceps A and fracture reduction forceps B When adjusting the spacing, the adjustment accuracy is improved by observing the spacing scale line on the piston rod.

Description of drawings

Fig. 1 is a structural schematic diagram of an adjustable fracture closed reduction device of the present invention;

Fig. 2 is a schematic diagram of the cross-sectional structure of the sleeve.

Reference signs: 1-fracture reduction forceps A, 1.1-reduction arm A, 1.2-reduction arm B, 1.2.1-tip, 1.3-needle, 2-connecting rod, 3-sleeve, 3.1-eccentric hole, 4 -Hydraulic telescopic cylinder, 4.1-Cylinder, 4.2-Piston rod, 5-Fracture reduction forceps B, 6-Kirschner wire, 7-Limit rod, 7.1-Limit slot, 8-Tension spring, 9-Ball bearing A, 10-ball bearing B, 11-spacing scale line, 12-fastening screw.

Detailed ways

In order for those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and the following embodiments.

Example 1

As shown in Figures 1 to 2, this embodiment provides an adjustable fracture closed reduction device, including fracture reduction forceps A1, fracture reduction forceps A1 is movably connected to a connecting rod 2, and the other end of the connecting rod 2 is detachably connected to a sleeve 3 , the sleeve 3 is connected with a hydraulic telescopic cylinder 4, the hydraulic telescopic cylinder 4 includes a cylinder 4.1 connected with the sleeve 3, a telescopic piston rod 4.2 is arranged inside the cylinder 4.1, and the other end of the piston rod 4.2 is movably connected with a fracture reduction forceps B5.

In this embodiment, the fracture reduction forceps A is movably connected with the connecting rod, and the fracture reduction forceps A can rotate 360° around the connecting rod. The sleeve is removed from the sleeve, which is convenient to replace different types of reset forceps for combined use. It has strong flexibility. The sleeve is connected with a hydraulic telescopic cylinder. Rotate 360° around the piston rod, so the fracture reduction forceps A and fracture reduction forceps B can be operated at different angles, and the distance between fracture reduction forceps A and fracture reduction forceps B can be adjusted through the hydraulic telescopic cylinder, which is convenient and quick to operate , saving time and labor, the spacing adjustment accuracy is not affected by the position of fracture reduction forceps A and fracture reduction forceps B, which meets the requirements of use and greatly improves the operational performance and practicability.

Example 2

As shown in Figure 1, this embodiment is further optimized on the basis of Embodiment 1. Specifically, the fracture reduction forceps A1 includes a reset arm A1.1 and a reset arm B1.2 hinged together through a hinge assembly. The tops of the arm A1.1 and the reset arm B1.2 are provided with a syringe 1.3 for installing the Kirschner wire 6, and the bottom of the reset arm A1.1 is hinged with a limiting rod 7, which is close to one end of the reset arm A1.1 A tension spring 8 is connected, the tension spring 8 is located above the limit rod 7, the other end of the tension spring 8 is connected to the side end of the reset arm A1. The bottom of the reduction arm B1.2 is provided with a tip 1.2.1 that cooperates with the limiting slot 7.1, and the structure of the fracture reduction forceps B5 is the same as that of the fracture reduction forceps A1.

In this embodiment, when the position between the fracture reduction forceps A and the fracture reduction forceps B is adjusted, the Kirschner wires are installed in the corresponding syringes of the fracture reduction forceps A and fracture reduction forceps B, and then the operation is performed. When operating fracture reduction forceps A or fracture reduction forceps B, adjust the positional relationship between the reset arm A and the reset arm B according to the operation requirements, because the tension spring at the side end of the reset arm A always has an upward direction to the lower limit rod. Pulling force, so that the limit rod is always close to the bottom of the reset arm B, only need to snap the tip of the bottom of the reset arm B into the limit card slot at the corresponding position on the limit rod, so that the distance between the reset arm A and the reset arm B The position adjustment between the reset arm A and the reset arm B can be completed without any further rotation between them. The structure is simple and the operation is convenient and fast.

Example 3

As shown in Figure 1, this embodiment is further optimized on the basis of Embodiment 1, specifically, the center hinge of the fracture reduction forceps A1 is provided with a ball bearing A9 that cooperates with the connecting rod 2, and the fracture reduction forceps B5 The center hinge is provided with a ball bearing B10 that cooperates with the piston rod 4.2.

In this embodiment, the corresponding fracture reduction forceps A and fracture reduction forceps B are rotated by 360° through the ball bearings A and B. The friction coefficient is small and the wear is small during rotation, and it is also convenient to move the fracture reduction forceps A from the connecting rod or disassemble the fracture reduction forceps B from the piston rod, so that different types of reduction forceps can be easily replaced for combined use, and the operation is convenient, and the flexibility and applicability are strong.

Example 4

As shown in Figures 1 to 2, this embodiment is further optimized on the basis of Embodiment 1. Specifically, the sleeve 3 is provided with an eccentric hole 3.1 that cooperates with the connecting rod 2, and the center of the eccentric hole 3.1 is located in the sleeve. 3 Directly above or directly below the center of the circle, a fastening screw 12 for pressing the connecting rod 2 is threaded on the sleeve 3 .

In this embodiment, according to the needs of the operation, there should be a certain relative height difference between the fracture reduction forceps A and the fracture reduction forceps B. Insert the connecting rod into the eccentric hole of the sleeve to make the connecting rod and the piston rod parallel to each other. Not on a straight line, so the fracture reduction forceps A and fracture reduction forceps B respectively connected to the connecting rod and the piston rod form a height difference. Prevent the connecting rod from loosening or turning during use, and at the same time facilitate disassembly and assembly.

Example 5

As shown in FIG. 1 , this embodiment is further optimized on the basis of embodiment 1. Specifically, there are several interval scale marks 11 evenly distributed on the piston rod 4.2 along the length direction of the piston rod 4.2.

In this embodiment, the distance scale line represents the distance between fracture reduction forceps A and fracture reduction forceps B. When adjusting the distance between fracture reduction forceps A and fracture reduction forceps B, by observing the distance scale line on the piston rod, Thereby, the adjustment precision is improved.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. The scope of patent protection of the present invention is subject to the claims. Any equivalent structural changes made by using the description and accompanying drawings of the present invention, All should be included in the protection scope of the present invention in the same way.

Claims (6)

1. a kind of controllable fracture closed reduction device, which is characterized in that including fracture resetting tongs A (1), fracture resetting tongs A (1) It is connected with connecting rod (2), connecting rod (2) other end is removably connected with sleeve (3), and sleeve (3) is connected with hydraulically extensible Cylinder (4), hydraulically extensible cylinder (4) include the cylinder barrel (4.1) connecting with sleeve (3), are provided with telescopic piston in cylinder barrel (4.1) Bar (4.2), piston rod (4.2) other end are connected with fracture resetting tongs B (5).

2. the controllable fracture closed reduction device of one kind according to claim 1, which is characterized in that fracture resetting tongs A (1) Including the reset arm A (1.1) and reset arm B (1.2) hinged by hinge assembly, reset arm A (1.1) and reset arm B (1.2) syringe (1.3) for installing Kirschner wire (6) is provided at the top of.

3. the controllable fracture closed reduction device of one kind according to claim 2, which is characterized in that reset arm A (1.1) bottom Portion is hinged with gag lever post (7), and gag lever post (7) is connected with tension spring (8), tension spring close to the one end of reset arm A (1.1) (8) be located above gag lever post (7), tension spring (8) other end is connected to reset arm A (1.1) side, on gag lever post (7) along Length direction is evenly equipped with several limit card slots (7.1), and reset arm B (1.2) bottom is provided with the point with limit card slot (7.1) cooperation It holds (1.2.1), the structure of fracture resetting tongs B (5) is identical as the structure of fracture resetting tongs A (1).

4. the controllable fracture closed reduction device of one kind according to claim 2, which is characterized in that fracture resetting tongs A (1) Center hinged place be provided with connecting rod (2) cooperation ball bearing A (9), the center hinged place of fracture resetting tongs B (5) is set It is equipped with the ball bearing B (10) with piston rod (4.2) cooperation.

5. according to claim 1 to the controllable fracture closed reduction device of one kind described in any claim in 4, feature exists In the interior eccentric orfice (3.1) being provided with connecting rod (2) cooperation of sleeve (3), eccentric orfice (3.1) center of circle is located at sleeve (3) center of circle Surface or underface are threaded with the fastening screw (12) for compressing connecting rod (2) on sleeve (3).

6. the controllable fracture closed reduction device of one kind according to claim 1, which is characterized in that on piston rod (4.2) Several spaced scale lines (11) are evenly equipped in piston rod (4.2) length direction.