Multi-angle fixing clamp device

Abstract

A multi-angle fixing clamp device comprises a basic fixing clamp unit, in the basic fixing clamp unit, an upper connecting base and a middle connecting base are provided with grooves for clamping needles or clamping rods, the upper connecting base and the middle connecting base are arranged on the middle section of a connecting rod in an empty sleeving mode, threaded sections are arranged on the two sides of the connecting rod, and a first locking nut is in threaded connection with the threaded section on one side of the connecting rod. The locking nut is connected to the upper connecting base in an abutting mode, the fixing base is connected to the threaded section on the other side of the connecting rod in a threaded mode, the fixing base is connected to the middle connecting base in an abutting mode, and anti-rotation teeth on the end face of the middle connecting base are meshed with anti-rotation teeth on the end face of the fixing base. A first connector is installed at the end of the threaded section on the other side of the connecting rod, the first connector is rotatably connected with a second connector, the second connector is provided with a connecting part, and the rotating face of the upper connecting base, the rotating face of the middle connecting base and the connecting rod are perpendicular to the rotating face between the first connector and the second connector. The angle is convenient to adjust, the occupied space is small, and operation is convenient.

Description

Technical Field

[0001] The invention belongs to the field of orthopedic fixation instruments and relates to an external fixation bracket. Background Art

[0002] In the existing technology, the treatment of open fractures requires rapidity and minimization of further damage to tissues; the fixation method of fractures should be based on the principles of simplicity, rapidity and effectiveness. External fixator technology is widely used in the treatment of fractures. The advantages of external fixators are: 1. Good stability: External fixation can provide good stability, making the fracture ends less likely to shift, which is conducive to the healing of fractures. 2. Less trauma: Compared with internal fixation surgery, external fixation causes less trauma and faster recovery after surgery. 3. Wide range of applications: External fixation is suitable for various types of fractures, including complex open fractures and multiple fractures. 4. Strong adjustability: External fixation can be adjusted according to the healing of the fracture to meet different treatment needs.

[0003] The existing combined external fixator generally needs to be connected by multiple connecting rods, rod-rod fixing clamps, multiple needle-rod fixing clamps and bone needles. The connecting rods are straight rods, and the connecting rods are connected to each other by rod-rod fixing clamps. The connecting rods and the bone needles are fixed by needle-rod fixing clamps. They need to be connected step by step. Because the connecting rods are straight, they need to be transferred if they want to adjust the direction, and they occupy a relatively large space. In addition, the conventional combined external frame cannot be pressurized or expanded. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a multi-angle fixing clamp device which is easy to adjust the angle, occupies a small space and is easy to operate.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A multi-angle fixing clamp device comprises a basic fixing clamp unit, wherein the basic fixing clamp unit comprises a connecting rod, an upper connecting seat, an intermediate connecting seat, a fixing seat, a first connecting head and a second connecting head, wherein the upper connecting seat and the intermediate connecting seat are provided with grooves for clamping needles or clamping rods, and the upper connecting seat and the intermediate connecting seat are hollowly sleeved on the middle section of the connecting rod, wherein threaded sections are provided on both sides of the connecting rod, a first locking nut is threadedly connected to the threaded section on one side of the connecting rod, the locking nut is abutted on the upper connecting seat, the fixing seat is threadedly connected to the threaded section on the other side of the connecting rod, the fixing seat is abutted on the intermediate connecting seat, and the anti-rotation teeth on the end face of the intermediate connecting seat and the anti-rotation teeth on the end face of the fixing seat are meshed with each other; a first connecting head is installed at the end of the threaded section on the other side of the connecting rod, the first connecting head is rotatably connected to the second connecting head, and the second connecting head is provided with a connecting portion connected to the connecting rod of another basic fixing clamp unit;

[0007] The rotation planes of the upper connecting seat, the middle connecting seat and the connecting rod and the rotation plane between the first connecting head and the second connecting head are perpendicular.

[0008] Furthermore, the first connecting head has an internal thread connected to the end of the threaded section on the other side of the connecting rod and is locked by a second locking nut.

[0009] Furthermore, the first connector has a radial hole, the second connector has a radial internal thread, the locking screw passes through the first connector and is screwed into the second connector to lock and position, and the first connector and the second connector can rotate freely around the locking screw.

[0010] Preferably, the anti-rotation teeth on the end face of the first connector and the anti-rotation teeth on the end face of the second connector are meshed with each other.

[0011] The connecting portion of the second connecting head is an axial threaded hole, and the axial threaded hole is connected to a connecting rod of another basic fixing clamp unit and is locked by a third locking nut.

[0012] Spring parts are installed between the intermediate connecting seat and the fixing seat, and between the first connecting head and the second connecting head, so that the position can be adjusted conveniently and the parts are not easy to loosen when not locked.

[0013] Furthermore, the multi-angle fixing clamp device also includes an adapter, a connecting end of which is provided with a threaded hole and is threadedly connected to a connecting rod of the basic fixing clamp unit and is locked by a locking member.

[0014] The adapter is T-shaped or cross-shaped, or may be other adapter forms.

[0015] The connecting rod is a fully threaded rod or a threaded rod with a smooth middle section.

[0016] The beneficial effects of the present invention are mainly manifested in: easy angle adjustment, small space occupation and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a multi-angle fixing clamp device.

[0018] Figure 2 is a schematic diagram of a basic clamp unit.

[0019] Figure 3 yes Figure 2 AA cross-section diagram.

[0020] Figure 4 It is a connection diagram of the first connector and the locking screw.

[0021] Figure 5 Schematic diagram of an upper connection seat with a clamping pin or a clamping rod.

[0022] Figure 6 is a schematic diagram of the fixing seat.

[0023] Figure 7 is a schematic diagram of the first connector.

[0024] Figure 8 is a schematic diagram of the second connector.

[0025] Fig. 9 This is a schematic diagram of the adapter.

[0026] The figure markings are as follows: 1: connecting rod, 2: first locking nut, 3: upper connecting seat, 4: middle connecting seat, 5: fixing seat, 6: first connecting head, 7: locking screw, 8: second connecting head, 9: second locking nut, 10: spring part, 11: adapter, 12: third locking nut. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Reference Figures 1 to 9 , a multi-angle fixing clamp device, comprising a basic fixing clamp unit, the basic fixing clamp unit comprising a connecting rod 1, an upper connecting seat 3, an intermediate connecting seat 4, a fixing seat 5, a first connecting head 6 and a second connecting head 8, the upper connecting seat 3 and the intermediate connecting seat 4 are provided with grooves for clamping needles or clamping rods, the upper connecting seat 3 and the intermediate connecting seat 4 are hollowly sleeved on the middle section of the connecting rod 1, both sides of the connecting rod 1 are provided with threaded sections, a first locking nut 2 is threadedly connected to the threaded section on one side of the connecting rod 1, the locking nut 2 is abutted on the upper connecting seat 3, the fixing seat 5 is threadedly connected to the threaded section on the other side of the connecting rod 1, the fixing seat 5 is abutted on the intermediate connecting seat 4, and the anti-rotation teeth on the end face of the intermediate connecting seat 4 and the anti-rotation teeth on the end face of the fixing seat 5 are meshed with each other; a first connecting head 6 is installed at the end of the threaded section on the other side of the connecting rod 1, the first connecting head 6 is rotatably connected to the second connecting head 8, and the second connecting head 8 is provided with a connecting portion connected to the connecting rod of another basic fixing clamp unit;

[0029] The upper connecting seat 3 , the middle connecting seat 4 and the rotating surface of the connecting rod 1 and the rotating surface between the first connecting head 6 and the second connecting head 8 are perpendicular.

[0030] Furthermore, the first connector 6 has an internal thread connected to the end of the threaded section on the other side of the connecting rod 1 and is locked by a second locking nut 9 .

[0031] Furthermore, the first connector 6 has a radial hole, the second connector 8 has a radial internal thread, the locking screw 7 passes through the first connector 6 and is screwed into the second connector 8 to lock it in place, and the first connector 6 and the second connector 8 can rotate freely around the locking screw 7.

[0032] Preferably, the anti-rotation teeth on the end surface of the first connector 6 and the anti-rotation teeth on the end surface of the second connector 8 are meshed with each other.

[0033] The connecting portion of the second connecting head 8 is an axial threaded hole, which is connected to a connecting rod of another basic fixing clamp unit and is locked by a third locking nut 12 .

[0034] A spring member 10 is installed between the intermediate connecting seat 4 and the fixing seat 5, and between the first connecting head 6 and the second connecting head 8. This makes it easy to adjust the position and prevent the parts from loosening when the anti-rotation teeth are not locked.

[0035] Furthermore, the multi-angle fixing clamp device further comprises an adapter 11, a connecting end of which is provided with a threaded hole and is threadedly connected to a connecting rod of the basic fixing clamp unit and is locked by a locking member.

[0036] The adapter 11 is T-shaped or cross-shaped, or may be other adapter forms.

[0037] The connecting rod 1 is a fully threaded rod or a threaded rod with a smooth middle section.

[0038] In this embodiment, the fixed seat 5 has an internal thread, which plays an anti-rotation and position movement role. The first locking nut 2 is rotated to clamp the upper connecting seat 3 and the intermediate connecting seat 4. The upper connecting seat 3 and the intermediate connecting seat 4 have grooves for clamping needles / rods. The upper connecting seat 3 and the intermediate connecting seat 4 can rotate freely around the connecting rod 1. The end faces of the intermediate connecting seat 4 and the fixed seat 5 have anti-rotation teeth, and the anti-rotation teeth on the end face of the intermediate connecting seat 4 and the anti-rotation teeth on the end face of the fixed seat 5 are meshed with each other; the first connecting head 6 has a hole in the radial direction, and the second connecting head 8 has a radial internal thread. The locking screw 7 passes through the first connecting head 6 and is screwed into the second connecting head 8 It can be locked and positioned, the first connecting head 6 and the second connecting head 8 can rotate freely around the locking screw 7, the end faces of the first connecting head 6 and the second connecting head 8 can also be provided with anti-rotation teeth, the first connecting head 6 has an internal thread connected to the threaded section on one side of the connecting rod 1, and is locked by the locking nut 12 to prevent loosening, and the first connecting head 6 and the second connecting head 8 can also be adjusted 360 degrees around the connecting rod 1 when connected to the connecting rod 1, and the first connecting head 6 and the locking screw 7 can be equipped with a spring part 10 between the upper connecting seat 3 and the middle connecting seat 4, which makes it convenient to adjust the position and the parts are not easy to loosen when not locked.

[0039] In this embodiment, after the fixing seat 5 is screwed into the connecting rod 1 and the position is confirmed, the upper connecting seat 3 and the middle connecting seat 4 are moved toward the fixing seat 5 through the first locking nut 2. The upper connecting seat 3 and the middle connecting seat 4 can clamp the bone needle. The upper connecting seat 3 and the middle connecting seat 4 can have various forms; when you want to apply pressure, you can rotate the fixing seat 5 to move the fixing seat 5 in the opposite direction of the first locking nut 2, and then rotate the first locking nut 2 and tighten it again to achieve pressure, and vice versa to achieve expansion. The first locking nut 2 allows the upper connecting seat 3 and the middle connecting seat 4 to rotate the groove of the clamping needle / rod as needed to adjust the angle of the clamping needle / rod.

[0040] A single basic unit needle / rod clamping structure can be connected to multiple groups, and can clamp multiple needles / rods horizontally or vertically.

[0041] The pressurization in this embodiment means that the force is applied by applying axial pressure between the bone ends so that the bone ends are in close contact. This pressurization fixation can increase the stability between the bone ends and is conducive to bone healing.

[0042] The contents described in the embodiments of this specification are merely enumerations of implementation forms of the inventive concept and are for illustrative purposes only. The protection scope of the present invention should not be considered to be limited to the specific forms described in this embodiment, and the protection scope of the present invention also extends to equivalent technical means that can be thought of by ordinary technicians in this field based on the inventive concept.

Claims

1. A multi-angle fixing clamp device, characterized in that: The device includes a basic fixing clamp unit, and the basic fixing clamp unit includes a connecting rod, an upper connecting seat, an intermediate connecting seat, a fixed seat, a first connecting head and a second connecting head, the upper connecting seat and the intermediate connecting seat are provided with grooves for clamping needles or clamping rods, the upper connecting seat and the intermediate connecting seat are hollowly sleeved on the middle section of the connecting rod, threaded sections are provided on both sides of the connecting rod, a first locking nut is threadedly connected to the threaded section on one side of the connecting rod, the locking nut is abutted on the upper connecting seat, the fixed seat is threadedly connected to the threaded section on the other side of the connecting rod, the fixed seat is abutted on the intermediate connecting seat, the anti-rotation teeth on the end face of the intermediate connecting seat and the anti-rotation teeth on the end face of the fixed seat are meshed with each other; a first connecting head is installed at the end of the threaded section on the other side of the connecting rod, the first connecting head is rotatably connected to the second connecting head, and the second connecting head is provided with a connecting portion connected to the connecting rod of another basic fixing clamp unit; The rotation planes of the upper connecting seat, the middle connecting seat and the connecting rod and the rotation plane between the first connecting head and the second connecting head are perpendicular.

2. A multi-angle fixing clamp device as claimed in claim 1, characterized in that: The first connector has an internal thread connected to the end of the threaded section on the other side of the connecting rod and is locked by a second locking nut.

3. A multi-angle fixing clamp device as claimed in claim 1 or 2, characterized in that: The first connector has a hole radially, the second connector has a radial internal thread, the locking screw passes through the first connector and is screwed into the second connector to lock and position, and the first connector and the second connector can rotate freely around the locking screw.

4. A multi-angle fixing clamp device as claimed in claim 3, characterized in that: The anti-rotation teeth on the end surface of the first connector and the anti-rotation teeth on the end surface of the second connector are meshed with each other.

5. A multi-angle fixing clamp device as claimed in claim 1 or 2, characterized in that: The connecting portion of the second connecting head is an axial threaded hole, and the axial threaded hole is connected to a connecting rod of another basic fixing clamp unit and is locked by a third locking nut.

6. A multi-angle fixing clamp device as claimed in claim 3, characterized in that: Spring components are installed between the middle connecting seat and the fixing seat, and between the first connecting head and the second connecting head.

7. A multi-angle fixing clamp device as claimed in claim 1 or 2, characterized in that: The multi-angle fixing clamp device also includes an adapter, a connecting end of which is provided with a threaded hole and is threadedly connected to a connecting rod of the basic fixing clamp unit and is locked by a locking member.

8. A multi-angle fixing clamp device as claimed in claim 1 or 2, characterized in that: The adapter is T-shaped or cross-shaped.

9. A multi-angle fixing clamp device as claimed in claim 1 or 2, characterized in that: The connecting rod is a fully threaded rod or a threaded rod with a smooth middle section.

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