CN211723381U - Multifunctional knee joint support traction device - Google Patents

Abstract

The utility model relates to a multi-functional knee joint supports draw gear, including three group drums, three groups all connect through three group stay tubes between the drum, the stay tube includes two sets of side stay tubes and a set of bottom support tube, side stay tube includes side lever, side pipe and adjustment mechanism, the bottom support tube includes sill bar, bottom tube and adjustment mechanism, and is wherein a set of set up the external screw thread structure on the outer wall of the side pipe of side stay tube, the structural lock needle mechanism that sets up of external screw thread, lock needle mechanism is including pulling nut, lock needle nut and lock needle bolt, pull nut and lock needle bolted connection are located the upside of lock needle nut.

Description

Multifunctional knee joint support traction device

Technical Field

The utility model belongs to the technical field of orthopedic surgery apparatus, concretely relates to multi-functional knee joint supports draw gear.

Background

In clinical medicine, tibia fracture and femur fracture are common types, the aim of surgical treatment is to recover the lower limb force line, close reduction is achieved as much as possible, periosteum and soft tissue stripping at the broken end of fracture is reduced, blood circulation at the broken end of fracture is protected, and tibia intramedullary nail is often selected for close reduction and internal fixation. In the operation process, the affected limb often needs to keep the knee bending and hip bending postures so as to facilitate the operation, at the moment, an assistant is required to continuously swing out of the body position, the body position needs to be kept unchanged in the operation process, and when the operation time is long, the body position cannot be fixed along with the physical consumption of the assistant. However, when the traction reduction device is used for traction reduction, the traction reduction device is difficult to be matched with the existing traction reduction device on the market, and the existing traction reduction device on the market cannot meet the supporting function.

In summary, the currently used surgical instruments have single functions, and a better surgical effect can be achieved only by combining multiple products during clinical surgery.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a multifunctional knee joint support traction device, which comprises three groups of cylinders, wherein the three groups of cylinders are connected through three groups of support tubes to form a stable triangular structure, the three groups of support tubes comprise two groups of side support tubes and one group of bottom support tube, the side support tubes comprise side rods, side tubes and an adjusting mechanism, the bottom support tube comprises a bottom rod, a bottom tube and an adjusting mechanism, the inner walls of the two ends of the cylinder are provided with a thread structure and are connected with a cylinder nut through the thread structure, the two ends of the support tubes are provided with a convex hinge and a concave hinge, the convex hinge and the concave hinge are connected with the cylinder nut, one end of the cylinder nut far away from the cylinder is provided with a nut, the convex hinge and the concave hinge are fixed on the cylinder nut by the nut, wherein, the outer wall of the side tube of one group of support tubes is, the external thread is structurally provided with a locking needle mechanism, the locking needle mechanism comprises a traction nut, a locking needle nut and a locking needle bolt, and the traction nut is connected with the locking needle bolt and is located on the upper side of the locking needle nut.

Preferably, the bottom rod and the side rod respectively extend into the bottom tube and the side tube, a plurality of locking grooves are uniformly formed in the bottom rod and the side rod, the adjusting mechanism is arranged at the end parts of the bottom tube and the side tube, and the bottom tube and the side tube are located at one end of the adjusting mechanism and are provided with clamping springs.

In any of the above solutions, preferably, the adjusting mechanism comprises a lock nut, a compression spring, a lock catch and a rotating handle, the rotating handle is sleeved at the end parts of the side tube and the bottom tube and is fixedly connected with the end parts of the side tube and the bottom tube through the snap spring, the lock nut is connected with the rotating handle through the lock catch, the inner wall of the locking nut is respectively provided with a wedge-shaped groove and an inverted L-shaped groove, the compression spring and the lock catch are respectively arranged in the inverted L-shaped groove and the wedge-shaped groove, the rotating handle comprises a handle structure and a long pipe structure, the long pipe structure is provided with a through hole, the through hole is matched with the shape of the lock catch, the compression spring is sleeved on the periphery of the long pipe structure of the rotating handle, the locking nut is sleeved on the periphery of the compression spring, and two end parts of the compression spring are respectively abutted against the rotating handle and the end part of the inverted L-shaped groove of the locking nut.

In any of the above solutions, preferably, the shape of the lock catch is adapted to the shape of the lock groove and the wedge-shaped groove of the inner wall of the lock nut.

The utility model has the advantages that: the utility model discloses on guaranteeing that knee joint support has the function basis, increased and pull the function that resets, realized the combination of different functional product, can facilitate for clinical operation, save time and resource.

Drawings

FIG. 1 is a schematic view of a preferred embodiment of a multi-functional knee joint support distraction device according to the present invention;

FIG. 2 is an enlarged cross-sectional view of the adjustment mechanism of the embodiment of FIG. 1 of the multi-functional knee brace traction device in accordance with the present invention;

FIG. 3 is an enlarged cross-sectional view of the cylinder of the embodiment of FIG. 1 of the multi-functional knee brace traction device in accordance with the present invention;

fig. 4 is a cross-sectional enlarged view of the locking pin mechanism of the multi-functional knee joint support traction device of the embodiment of fig. 1 according to the present invention.

FIG. 5 is a schematic view of the side lever of the embodiment of FIG. 1 of the multi-functional knee brace traction device in accordance with the present invention;

fig. 6 is a schematic view of the structure of the rotating handle of the multifunctional knee joint support traction device of the embodiment of fig. 1 according to the present invention.

The figures are labeled as follows: 1-cylinder; 2-side lever; 3-side tube; 4-an adjustment mechanism; 5-a needle locking mechanism; 6-bone traction needle; 7-concave hinge; 8-convex hinges; 9-barrel nut; 10-a screw cap; 11-locking nut; 12-locking and buckling; 13-a compression spring; 14-a rotating handle; 15-a clamp spring; 16-a bottom bar; 17-a bottom tube; 18-a draw nut; 19-a lock pin bolt; 20-locking the needle nut.

Detailed Description

In order to further understand the present invention, the present invention will be described in detail with reference to the following embodiments.

As shown in fig. 1 to 6, the utility model provides a multifunctional knee joint support traction device, which comprises three groups of cylinders 1, wherein the three groups of cylinders 1 are connected through three groups of supporting tubes to form a stable triangle structure, the triangle structure is used for supporting the legs of a patient at a proper operation position, the cylinders 1 are made of carbon fiber materials, complete perspective and no shadow can be realized in the orthopedic operation process, the three groups of supporting tubes comprise two groups of lateral supporting tubes and a group of bottom supporting tubes, the structures of the lateral supporting tubes and the bottom supporting tubes are basically the same, the lengths and the telescopic lengths are different, the lateral supporting tubes comprise lateral rods 2 and lateral tubes 3, the bottom supporting tubes comprise bottom rods 16 and bottom tubes 17, the lateral rods 2 and the lateral tubes 3 are connected through adjusting mechanisms 4, the bottom rods 16 and the bottom tubes 17 are connected through adjusting mechanisms 4, the inner walls at two ends of the cylinder 1 are provided with thread structures and are connected with a cylinder nut 9 through the thread structures, two ends of the supporting tube are provided with a convex hinge 8 and a concave hinge 7, the convex hinge 8 and the concave hinge 7 are connected with the cylinder nut 9, the supporting tube can rotate around the cylinder 1 for 360 degrees without dead angles, the angles of the supporting tube at the front side and the rear side of the cylinder 1 can be randomly changed, one end, far away from the cylinder 1, of the cylinder nut 9 is provided with a nut 10, the convex hinge 8 and the concave hinge 7 are fixed on the cylinder nut 9 through the nut 10, wherein the outer wall of the side tube 3 of one group of the side supporting tubes is provided with an external thread structure, the external thread structure is provided with a needle locking mechanism 5, the needle locking mechanism 5 comprises a traction nut 18, a needle locking nut 20 and a needle locking bolt 19, the traction nut 18 is connected with the needle locking bolt 19 and is positioned on the upper side of the needle locking, during the use, bone traction needle 6 crosses patient's shank skeleton adaptation position, fixes respectively on the lock needle mechanism 5 of mutual parallel arrangement the both ends of bone traction needle 6, and is concrete, bone traction needle 6 arranges in the recess that lock needle bolt 19 set up will through lock needle nut 20 lock bone traction needle 6, when drawing, through rotating draw nut 18 drives lock needle bolt 19 with lock needle nut 20 is in order to realize removing the position of bone traction needle 6, with fracture position traction reduction. The bottom rod 16 and the side rod 2 respectively extend into the bottom tube 17 and the side tube 3, a plurality of locking grooves are uniformly formed in the bottom rod 16 and the side rod 2, the locking grooves are wedge-shaped, the adjusting mechanism 4 is arranged at the end parts of the bottom tube 17 and the side tube 3, the adjusting mechanism 4 is used for adjusting the length of the supporting tube, the bottom tube 17 and the side tube 3 are positioned at one end of the adjusting mechanism 4 and are respectively provided with a clamp spring 15, the clamp springs 15 fix the adjusting mechanism 4, the adjusting mechanism 4 comprises a lock catch 12, a compression spring 13, a lock nut 11 and a rotating handle 14, the rotating handle 14 is sleeved at the end parts of the side tube 3 and the bottom tube 17 and is fixedly connected with the clamp springs 15, the lock nut 11 is connected with the rotating handle 14 through the lock catch 12, the inner wall of the lock nut 11 is respectively provided with a wedge-shaped groove and an inverted L-shaped groove, the compression spring 13 and the lock catch 12 are respectively arranged in the inverted L-shaped groove and the wedge-shaped groove, the rotating handle 14 comprises a handle structure and a long pipe structure, a through hole is arranged on the long pipe structure, the through hole is adapted to the shape of the lock catch 12, the lock catch 12 can extend into the through hole and form an integrated structure with the rotating handle 14, therefore, the rotating handle 14 can drive the rotation of the lock catch 12 when rotating, the compression spring 13 is sleeved on the periphery of the long pipe structure of the rotating handle 14, the lock nut 11 is sleeved on the periphery of the compression spring 13, the two ends of the compression spring 13 are respectively abutted against the rotating handle 14 and the end part of the inverted L-shaped groove of the lock nut 11, the shape of the lock catch 12 is adapted to the shape of the wedge-shaped groove on the inner wall of the lock nut 11, the side rod 2 and the bottom rod 16 are arranged, the two sides of the lock groove are both planar structures, and the planar structure can ensure that the lock catch 12 rotates 90 degrees later (namely, the arranged groove part 12 rotates to one side provided with the planar structure ) The lock catch 12 will automatically attach to and keep fixed with the plane, so that the lock catch 12 moves to a plane without the lock groove, one side of the two sets of plane structures is provided with a scale mark to provide the length of the support tube, the bottom rings of the side rods 2 and the bottom rods 16 are provided with a clamping groove (as shown in fig. 5), the clamping groove is provided with a wedge-shaped opening, the lock nut 11 is clamped into the clamping groove, the top end of the adjusting mechanism 4 can be limited and prevented from falling off, the adjusting mechanism 4 cannot be separated, and the lock nut 11 can be pushed out to a use position through the wedge-shaped opening.

When the adjusting mechanism 4 is used, the adjusting mechanism can be pushed to make the two far away (bottom rod and bottom tube, side rod and side tube), so that the lock catch 12 slides out of the lock slot, the lock catch 12 is held in the through hole of the rotating handle 14, then the rotating handle 14 is rotated for 90 degrees, the adjusting mechanism 4 rotates to drive the lock catch 12 to move to the side without lock slot, then the length of the side rod 2 or bottom rod 16 in the side tube 3 or bottom tube 17 is shortened, after the adjustment is completed, the rotating handle 14 is rotated back again to the original position, the adjusting mechanism is pushed to make the two far away again, so that the lock catch 12 moves into the lock slot to complete the fixing of the support tube, when the length of the side rod 2 or bottom rod 16 in the side tube 3 or bottom tube 17 needs to be extended, the adjusting mechanism can be directly pushed to make the two far away for elongation, the lock catch 12 can slide out of the lock groove through external force and then enter the adjacent lock groove, and the supporting tube can be elongated through circulation of the above operations.

It will be understood by those skilled in the art that the multi-functional knee joint support traction device of the present invention includes any combination of the above-mentioned embodiments and embodiments of the present invention and the accompanying drawings, which are not described in detail and are not intended to be construed as a single embodiment of the present invention for the sake of brevity. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A multifunctional knee joint support traction device comprises three groups of cylinders, wherein the three groups of cylinders are connected through three groups of support tubes to form a stable triangular structure, the three groups of support tubes comprise two groups of side support tubes and one group of bottom support tube, the side support tubes comprise side rods, side tubes and adjusting mechanisms, the bottom support tube comprises a bottom rod, a bottom tube and an adjusting mechanism, the inner walls of the two ends of each cylinder are provided with thread structures and are connected with a cylinder nut through the thread structures, the two ends of each support tube are provided with convex hinges and concave hinges which are connected with the cylinder nut, one end of the cylinder nut far away from the cylinder is provided with a nut, and the convex hinges and the concave hinges are fixed on the cylinder nut by the nut, the external thread is structurally provided with a locking needle mechanism, the locking needle mechanism comprises a traction nut, a locking needle nut and a locking needle bolt, and the traction nut is connected with the locking needle bolt and is located on the upper side of the locking needle nut.

2. The multifunctional knee joint support traction device according to claim 1, wherein the bottom rod and the side rod respectively extend into the bottom tube and the side tube, a plurality of locking grooves are uniformly formed on the bottom rod and the side rod respectively, and the adjusting mechanism is arranged at the end parts of the bottom tube and the side tube and fixedly connected through a clamping spring.

3. The multi-functional knee joint support distraction device of claim 2, the adjusting mechanism comprises a lock nut, a compression spring, a lock catch and a rotating handle, the rotating handle is sleeved at the end parts of the side tube and the bottom tube and is fixedly connected through the clamp spring, the lock nut is connected with the rotating handle through the lock catch, the inner wall of the lock nut is respectively provided with a wedge-shaped groove and an inverted L-shaped groove, the compression spring and the lock catch are respectively arranged in the inverted L-shaped groove and the wedge-shaped groove, the rotating handle comprises a handle structure and a long pipe structure, the long pipe structure is provided with a through hole, the through hole is matched with the shape of the lock catch, the compression spring is sleeved on the periphery of the long pipe structure of the rotating handle, the locking nut is sleeved on the periphery of the compression spring, and two end parts of the compression spring are respectively abutted against the rotating handle and the end part of the inverted L-shaped groove of the locking nut.

4. The multifunctional knee joint support traction device according to claim 3, wherein the shape of the lock catch is adapted to the shape of the lock groove and the wedge-shaped groove of the inner wall of the lock nut.

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