A fixation forceps for trauma orthopedics

Abstract

The utility model relates to the field of medical instruments, and specifically to a fixing forceps for trauma orthopedics. It comprises two cross-arranged clamp rods, and the two clamp rods are hinged by a pin. A plurality of screws are threadedly connected to the clamping part of any clamp rod, and a plurality of openings are provided on the clamping part of the clamp rod where the screws are located. The screws and the openings are staggered, and a screw sleeve is threadedly connected to the screw, and the screw sleeve is located outside the clamping part of the clamp rod where the screws are located. An elastic sheet is fixed on the screw sleeve, and a sliding sleeve is slidably connected to the elastic sheet. A push rod is detachably fixedly inserted in the sliding sleeve, and one end of the push rod away from the elastic sheet faces the middle direction of the clamping parts of the two clamp rods, and the holding ends of the two clamp rods are connected by a limit assembly. The utility model can use the push rod to squeeze and stabilize the bone block at the fractured part of the patient, and can ensure that the broken bone block fits the broken bone of the patient.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a fixing forceps for trauma orthopedics. Background Art

[0002] In fracture surgery, the broken bones need to be repositioned and then fixed with a steel plate. After the broken bones are spliced, the two fracture forceps holding the broken bones are connected and positioned using a connection and positioning device to ensure that the broken bones can be stably spliced ​​together, and then the broken bones are connected using a steel plate. Some existing fracture forceps do not have space for placing steel plates on the bones. When a steel plate needs to be placed, the clamping part of the fracture forceps that clamp the broken bones needs to loosen the broken bones, and a gap is created between the clamping part of the fracture forceps and the broken bones so that the steel plate can be inserted between the clamping part of the fracture forceps and the broken bones, and then the broken bones and the steel plate are clamped again, and then the steel plate is fixed. This operation method makes it easy for the broken bones to be dislocated after the clamping part of the fracture forceps is separated from the broken bones.

[0003] In order to solve the above problems, some existing fracture pliers are provided with variable spaces for placing steel plates. For example, the patent document with application number CN201910503892.X and invention name "A rapid steel plate repositioning fracture pliers and its use method" discloses a fracture pliers that is convenient for placing steel plates and tying broken bones after clamping the broken bones. When using the fracture pliers to treat patients, when it is necessary to place a steel plate, loosen the middle screw 11 on the pliers head B5 to keep it away from the broken bone. At this time, the screws 11 at both ends of the pliers head B5 always clamp the broken bone, thereby ensuring that the broken bone after reduction can remain motionless when the steel plate is installed. The middle screw 11 on the pliers head B5 is away from the broken bone to make room for installing the steel plate. At this time, the steel plate is passed through the space left by the screw 11 in the middle part of the pliers head B5 away from the broken bone, and then the steel plate is fixed on the broken bone. The entire operation can be completed in the state where the rapid steel plate repositioning fracture pliers are fixed. The fracture pliers can install the steel plate while keeping the broken bone stably clamped.

[0004] The patent document with application number CN202320181685.9 and titled "A fracture forceps" discloses a fracture forceps that can effectively clamp broken bones, reduce the stripping length of muscle tissue, and facilitate the patient's later recovery. Before clamping the broken bones, the fracture forceps can adjust the position of the movable screw, and make room for installing the steel plate while being able to stably clamp the broken bones with the movable screw and the fixed screw, thereby improving the installation efficiency of the steel plate.

[0005] The technical solutions disclosed in the above two patents can both adjust the screws to make room for the installation of the steel plate. However, for patients with multiple bone fragments after a fracture, relying solely on the clamping part of the fracture forceps and the screws cannot effectively stabilize the bone fragments. After the steel plate is installed and tied with steel wire, the bone fragments are easily dislocated, thereby affecting the fixation efficiency of the steel plate. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a fixation forceps for trauma orthopedics which can effectively position small bone pieces and steel plates and conveniently fix the steel plates and the bones of patients by using steel wires.

[0007] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0008] A fixing forceps for trauma orthopedics, comprising two cross-arranged clamp rods, the two clamp rods being hinged by a pin. A plurality of screws are threadedly connected to the clamping part of any clamp rod, a plurality of openings are provided on the clamping part of the clamp rod where the screws are located, the screws and the openings are staggered, a screw sleeve is threadedly connected to the screw, and the screw sleeve is located outside the clamping part of the clamp rod where the screws are located. An elastic sheet is fixed to the screw sleeve, a sliding sleeve is slidably clamped on the elastic sheet, a push rod is detachably fixedly inserted in the sliding sleeve, an end of the push rod away from the elastic sheet faces the middle direction of the clamping parts of the two clamp rods, and the gripping ends of the two clamp rods are connected by a limit assembly.

[0009] Specifically, the limit assembly includes a screw rod rotatably connected to the gripping end of one of the clamp rods, a long hole is opened on the gripping end of the other clamp rod, the screw rod passes through the long hole, and a stop cap is threadedly connected to the screw rod, and the stop cap is located outside the gripping end of the clamp rod where the long hole is located.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model can utilize the ejector rod to squeeze and stabilize the bone fragments at the fractured part of the patient, and can ensure that the broken bone fragments fit the broken bone of the patient.

[0012] 2. When installing the steel plate, turning the screw in the middle position can make room for installing the steel plate, making it easier to install the steel plate. During the installation of the steel plate, the fixation clamp can maintain the clamping of the broken bone, which can avoid the dislocation of the broken bone after docking.

[0013] 3. Rotating the stop cap can keep the two clamp rods stable, thereby maintaining the clamping force of the clamping parts of the two clamp rods on the broken bone, and the fixed pliers can still clamp on the broken bone after being released. The clamping connection device can be used to stably connect the pliers handle of the fracture pliers, so that the fracture pliers maintain a constant clamping force on the broken bone, which can ensure the effective splicing of the broken bone.

[0014] 4. The push rod can be located in the opening to squeeze the bone fragments inside the clamping part of the clamp rod. The screw sleeve can be turned so that the push rod and the clamp rod are misaligned to stabilize the bone fragments on one side of the clamp rod.

[0015] 5. The screw sleeve can move along the length direction of the elastic sheet, and the position of the push rod has a large adjustment range, which can effectively squeeze the broken bones.

[0016] 6. After the steel plate is placed, the push rod can be used to squeeze the steel plate, which can prevent the steel plate from shifting when it is tied to the patient's broken bones. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the utility model.

[0018] Figure 2 Schematic diagram of the cross-sectional structure of the elastic sheet.

[0019] The names of the parts in the attached drawings are:

[0020] 1 Clamp rod

[0021] 2 Chutes

[0022] 3 Screws

[0023] 4 Opening

[0024] 5 Screw sleeve

[0025] 6 Elastic sheet

[0026] 7 Slide

[0027] 8. Ejector

[0028] 9 Long hole

[0029] 10 Screw

[0030] 11. Blocking cap

[0031] 12 Blind holes. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Embodiment 1:

[0034] Reference Figure 1 and Figure 2 As shown, a fixation forceps for trauma orthopedics comprises two cross-arranged forceps rods 1, wherein the two forceps rods 1 are hinged by a pin.

[0035] A plurality of screws 3 are threadedly connected to the clamping portion of any clamp rod 1 , and a plurality of openings 4 are provided on the clamping portion of the clamp rod 1 where the screws 3 are located. The screws 3 and the openings 4 are staggered.

[0036] A screw sleeve 5 is threadedly connected to the screw 3 , and the screw sleeve 5 is located outside the clamping portion of the clamp rod 1 where the screw 3 is located.

[0037] An elastic sheet 6 is fixed on the screw sleeve 5, a sliding sleeve 7 is slidably clamped on the elastic sheet 6, a push rod 8 is detachably fixedly inserted in the sliding sleeve 7, and one end of the push rod 8 away from the elastic sheet 6 faces the middle direction of the clamping parts of the two clamp rods 1.

[0038] The elastic sheet 6 is provided with a T-shaped slide groove 2 , and the slide sleeve 7 is T-shaped as a whole. The upper end of the slide sleeve 7 is slidably engaged in the slide groove 2 , and the lower end of the slide sleeve 7 is provided with a blind hole 12 , and the upper end of the push rod 8 is inserted into the blind hole 12 .

[0039] After the doctor cuts open the skin of the fracture patient and separates the muscles to expose the fracture, he will peel off the bone surface where the steel plate is placed appropriately, so that the two fixation clamps can clamp the proximal and distal ends of the fractured bone respectively. Then the proximal and distal ends of the fractured bone are relatively close to each other, so that the fractured ends are aligned together.

[0040] After determining the clamping position of the fixing pliers on the broken bone, the position of the push rod 8 can be adjusted. After the fixing pliers clamp the broken bone, the push rod 8 can squeeze the broken bone fragments, and then the push rod 8 makes the broken bone fragments close to the proximal end and the distal end of the fracture that are connected together. After removing the push rod 8 and rotating the screw sleeve 5, the screw sleeve 5 can move along the axial direction of the screw 3, and the squeezing force of the push rod 8 on the broken bone fragments can be adjusted. At the same time, the sliding sleeve 7 can move along the length direction of the elastic sheet 6. The adjustable range of the position of the push rod 8 is relatively large.

[0041] The push rod 8 can be located in the opening 4 to squeeze the bone fragments inside the clamping part of the clamp rod 1. The screw sleeve 5 is rotated so that the push rod 8 and the clamp rod 1 are misaligned and the bone fragments on one side of the clamp rod 1 can be stabilized.

[0042] After the proximal end of the fracture and the distal end of the fracture are connected, the fracture reduction is observed by an X-ray machine. After confirming that the fracture is well aligned, the middle screw 3 on the clamping part of the clamp rod 1 is loosened and moved away from the broken bone. At this time, the remaining screws 3 always clamp the broken bone, thereby ensuring that the broken bone after reduction can remain motionless when the steel plate is installed. After the middle screw 3 on the clamping part of the clamp rod 1 is away from the broken bone, space for installing the steel plate is made, so that the steel plate is located between the clamping part of the clamp rod 1 and the broken bone. Then the steel plate is fixed on the broken bone. After the steel plate is placed, the top rod 8 can be used to squeeze the steel plate, which can prevent the steel plate from displacement when the steel plate and the patient's broken bone are bundled.

[0043] When the middle screw 3 is rotated and moved away from the broken bone, if the top rod 8 indirectly connected to the middle screw 3 is in a state of squeezing the bone fragments, it is necessary to stabilize the top rod 8 indirectly connected to the middle screw 3 when the middle screw 3 is rotated to prevent the screw sleeve 5 on the middle screw 3 from rotating during the rotation process, causing the top rod 8 indirectly connected to the middle screw 3 to lose the squeezing effect on the bone fragments.

[0044] Embodiment 2:

[0045] Based on Example 1, refer to Figure 1 As shown, the gripping ends of the two clamp rods 1 are connected by a limit assembly. The limit assembly includes a screw rod 10 rotatably connected to the gripping end of one of the clamp rods 1, a long hole 9 is opened on the gripping end of the other clamp rod 1, the screw rod 10 passes through the long hole 9, and a stop cap 11 is threadedly connected to the screw rod 10, and the stop cap 11 is located outside the gripping end of the clamp rod 1 where the long hole 9 is located.

[0046] Rotating the stop cap 11 can keep the two clamp rods 1 stable, thereby maintaining the clamping force of the clamping parts of the two clamp rods 1 on the broken bone, and the fixing pliers can still clamp on the broken bone after being released. The clamping connection device can be used to stably connect the pliers handle of the fracture pliers, so that the fracture pliers maintain a constant clamping force on the broken bone, which can ensure the effective splicing of the broken bone.

[0047] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0049] A person skilled in the art will appreciate that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixation forceps for trauma orthopedics, comprising two cross-arranged forceps rods (1), the two forceps rods (1) are hinged, and characterized in that: A plurality of screws (3) are threadedly connected to the clamping portion of any clamp rod (1), a plurality of openings (4) are provided on the clamping portion of the clamp rod (1) where the screws (3) are located, the screws (3) and the openings (4) are staggered, a screw sleeve (5) is threadedly connected to the screw (3), an elastic sheet (6) is fixed to the screw sleeve (5), a sliding sleeve (7) is slidably engaged with the elastic sheet (6), a push rod (8) is detachably and fixedly inserted in the sliding sleeve (7), an end of the push rod (8) away from the elastic sheet (6) faces the middle direction of the clamping portions of the two clamp rods (1), and the gripping ends of the two clamp rods (1) are connected via a limit assembly.

2. A fixation forceps for trauma orthopedics according to claim 1, characterized in that: The screw sleeve (5) is located outside the clamping portion of the clamp rod (1) where the screw (3) is located.

3. The orthopedic fixation forceps according to claim 1, characterized in that: The two clamp rods (1) are hinged via a pin.

4. The orthopedic fixation forceps according to claim 1, characterized in that: The limit assembly comprises a screw rod (10) rotatably connected to the gripping end of one of the clamp rods (1); a long hole (9) is provided on the gripping end of the other clamp rod (1); the screw rod (10) passes through the long hole (9); a stop cap (11) is threadedly connected to the screw rod (10); the stop cap (11) is located outside the gripping end of the clamp rod (1) where the long hole (9) is located.

5. The fixation forceps for trauma orthopedics according to claim 1, characterized in that: The elastic sheet (6) is provided with a T-shaped sliding groove (2), the sliding sleeve (7) is T-shaped as a whole, the upper end of the sliding sleeve (7) is slidably engaged in the sliding groove (2), the lower end of the sliding sleeve (7) is provided with a blind hole (12), and the upper end of the push rod (8) is inserted into the blind hole (12).

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