CN112168582A

CN112168582A - Orthopedic joint replacement surgery device

Info

Publication number: CN112168582A
Application number: CN202011214394.2A
Authority: CN
Inventors: 马冉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-01-05

Abstract

The invention discloses an orthopedic joint replacement surgery device which comprises a bed plate, wherein one side of the bed plate is connected with a supporting table through a fixing bolt, guide rail grooves are symmetrically formed in the supporting table, a sealing pipe is arranged in each guide rail groove, a piston block is connected in the sealing pipe in a sliding mode, a connecting rod is fixedly connected to the piston block, a plurality of permanent magnet sliding blocks are fixedly inserted into the connecting rod in a penetrating mode, the permanent magnet sliding blocks are arranged at equal intervals, a plurality of magnetic sliding sleeves are sleeved on the sealing pipe in a sliding mode, and the magnetic sliding sleeves correspond to the permanent magnet sliding blocks one to one. According to the invention, the piston plate slides up and down by rotating the current adjusting knob forwards and backwards, the magnetic sliding sleeve drives the foot support pad to move left and right, after adjustment is finished, the valve is only required to be closed, the current adjusting knob is rotated to cut off the power of the electromagnet, the angle of the joint can be maintained, the whole adjusting process is polluted by noise, the reaction is rapid, and unnecessary operation idle time is saved.

Description

Orthopedic joint replacement surgery device

Technical Field

The invention relates to the technical field of medical instruments, in particular to an orthopedic joint replacement surgery device.

Background

The knee joint is an important load bearing joint of the lower limb, the structure and the function of which are the most complicated of human joints, and the operation can be hindered to different degrees no matter whether the flexion is limited or the knee bending contracture is caused. The limited knee joint flexion will affect the knee surgery visual field exposure, the positioning apparatus can not be correctly arranged, the tibial plateau and the femoral posterior condyles are cut, and the removal of the osteophyte behind the knee joint capsule becomes very difficult. Mild knee flexion contractures (less than 30 degrees) are very common. The influence on the operation is less. Severe knee flexion contracture is often seen in rheumatoid arthritis patients, especially those who are unable to walk for a long time and are in bed or in wheelchairs, and the fixed knee flexion contracture is more than 90 degrees, often accompanied by knee varus, knee valgus or rotation deformity, or tibial plateau backward displacement or subluxation caused by the damage of anterior and posterior cruciate ligaments. Because of the limitation of the change of the strength of the collateral ligament and the cruciate ligament origin and the spongy bone of different tibial platform cutting surfaces, the flexion-knee contracture deformity cannot be completely solved by adopting more resections of tibial bone and femoral bone, but the operation of loosening the posterior joint capsule is more mainly relied on, and even the complete loosening of gastrocnemius, popliteal muscle and popliteal fascia is realized.

According to the Chinese patent publication numbers: CN209450580U, a lower limb traction fixing device for knee joint replacement surgery belongs to medical instrument technical field, including bottom plate and the shock absorber support of setting on the bottom plate, is provided with step motor in the shock absorber support, and step motor links to each other with the head end of lead screw, is provided with the ball on the lead screw, and the terminal swing joint of lead screw is in the backup pad. The utility model discloses can prevent that patient's low limbs from taking place the displacement at the operation in-process, improve operation precision and effect, labour saving and time saving to have the shock attenuation effect, the security level is high.

However, in the actual adjusting operation process, the motor drives the screw rod to work in a quiet operating room, the noise is abnormally prominent, and then the angle of the knee joint of the patient can be adjusted only by pulling out the fixing pin after the operation is finished, so that the redundant idle period of the operation is greatly increased, and the risk of the operation is increased.

Disclosure of Invention

The invention aims to overcome the defects that in the prior art, when lower limb traction is performed, a motor drives a screw rod to work in a quiet operating room, noise is abnormally prominent, and then the angle of the knee joint of a patient can be adjusted only by pulling out a fixing pin after an operation is finished, so that the redundant idle period of the operation is greatly increased, and the risk of the operation is increased, thereby providing an orthopedic joint replacement operation device.

In order to achieve the purpose, the invention adopts the following technical scheme:

an orthopedic joint replacement surgery device comprises a bed plate, one side of the bed plate is connected with a support table through a fixing bolt, guide rail grooves are symmetrically formed in the support table, a sealing pipe is arranged in each guide rail groove, a piston block is connected in the sealing pipe in a sliding mode, a connecting rod is fixedly connected to the piston block, a plurality of permanent magnet sliders are fixedly inserted into the connecting rod in an penetrating mode and are arranged at equal intervals, a plurality of magnetic sliding sleeves are sleeved on the sealing pipe in a sliding mode and correspond to the permanent magnet sliders in a one-to-one mode, foot supporting pads are fixedly connected to the magnetic sliding sleeves, strip-shaped anti-skidding lines are arranged on the upper surfaces of the foot supporting pads, a sealing chamber is fixedly connected to the support table and is filled with hydraulic oil, a piston plate is connected in the sealing chamber in a sliding mode, and fixing rods are symmetrically and fixedly connected to the piston plate, the sealing device is characterized in that a rotating roller is rotatably connected onto the fixed rod, a sponge cushion is arranged on the rotating roller, limiting mechanisms are arranged on two sides of the sealing chamber, an electromagnet is fixedly mounted on the inner wall of the sealing chamber, a permanent magnet is fixedly connected into the piston plate and is arranged right below the electromagnet, and one end, penetrating through the guide rail groove, of the sealing pipe is communicated with the sealing chamber.

Preferably, stop gear includes the elastic rod, the one end fixed connection of elastic rod is at the lateral wall of seal chamber, the one end fixedly connected with baffle of seal chamber is kept away from to the elastic rod, be equipped with non-woven fabrics disinfection package on the baffle.

Preferably, the supporting table is symmetrically and fixedly connected with supporting rods on the bottom side, and the bottom ends of the supporting rods are provided with brake universal wheels.

Preferably, a current adjusting knob is arranged on the support table and electrically connected with the electromagnet.

Preferably, the bottom side of the magnetic sliding sleeve is rotatably connected with a roller, and the roller abuts against the bottom wall of the guide rail groove.

Preferably, the sealing tube is a stainless steel metal tube, and a valve is arranged at one end of the sealing tube, which is far away from the sealing chamber.

Preferably, a plurality of strip-shaped air bag cushions are arranged on the bed board, and a gap of 10-15mm is reserved between every two strip-shaped air bag cushions.

Preferably, the piston plate is provided with a sealing rubber ring, and the sealing rubber ring is tightly attached to the inner wall of the sealing chamber.

Compared with the prior art, the invention has the beneficial effects that:

1. put up on the live-rollers through the shank with the patient, the foot is stepped on the foot tray, then open the valve of sealed tube right-hand member, through corotation current adjust knob, the electro-magnet is switched on, produce the repulsion action each other through electro-magnet and permanent magnet, thereby drive the piston board and slide downwards, hydraulic oil flows to both sides sealed tube in the further extrusion sealed chamber, thereby promote the inside piston piece of sealed tube and slide to the outside, under the linkage action of connecting rod, make the permanent magnetism slider pull the magnetism sliding sleeve and slide, the rolling action through the roller reduces the resistance when magnetism sliding sleeve slides, make the foot tray drive foot and remove, adjust articular bending angle.

2. Through the reverse rotation current adjust knob, make the electro-magnet electric current circular telegram opposite, thereby produce the inter attraction effect between electro-magnet and the permanent magnet, make the piston board upwards slide, with the hydraulic oil in the sealed tube pumpingly deliver to in the sealed chamber again, make the magnetism sliding sleeve drive the foot and hold in the palm the pad and remove left, only need close the valve after finishing adjusting, the rotation current adjust knob makes the electro-magnet outage, can carry out articular angle maintenance, the dirty noise pollution of whole accommodation process, the reaction is rapid, unnecessary operation idle time has been saved.

Drawings

FIG. 1 is a front view of an orthopedic joint replacement surgical device according to the present invention;

FIG. 2 is a schematic view of the internal structure of the sealing sleeve of the orthopedic joint replacement surgical device according to the present invention;

FIG. 3 is a schematic view showing the internal structure of a sealing chamber of the device for orthopedic joint replacement surgery according to the present invention;

FIG. 4 is a schematic top view of a support platform of the orthopaedic joint replacement device of the present invention;

fig. 5 is a block diagram of a system control process of the orthopedic joint replacement surgical device according to the present invention.

In the figure: 1-bed board, 2-strip airbag cushion, 3-support table, 4-seal chamber, 5-support rod, 6-brake universal wheel, 7-rotating roller, 8-baffle, 9-elastic rod, 10-fixed rod, 11-electromagnet, 12-piston plate, 13-permanent magnet, 14-seal tube, 15-magnetic sliding sleeve, 16-foot support cushion, 17-current adjusting knob, 18-guide rail groove, 19-valve, 20-piston block, 21-roller, 22-connecting rod and 23-permanent magnet slider.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, an orthopedic joint replacement surgery device comprises a bed plate 1, a plurality of strip-shaped air bag cushions 2 are arranged on the bed plate 1, a gap of 10-15mm is reserved between every two strip-shaped air bag cushions 2, after a patient lies on the strip-shaped air bag cushions 2, a gap is reserved between the back and the bed plate 1, air flow at the back is facilitated, back sweating is reduced, and comfort level of lying of the patient is increased, a support table 3 is connected to one side of the bed plate 1 through a fixing bolt, support rods 5 are symmetrically and fixedly connected to the bottom side of the support table 3, a brake universal wheel 6 is arranged at the bottom end of each support rod 5, the fixing bolt between the bed plate 1 and the support table 3 is disassembled, so that the bed plate 1 is separated from the support table 3, the support table 3 can be pushed to one side of an operating room under the action of the brake universal wheel 6, storage, the sealing tube 14 is arranged in the guide rail groove 18, the sealing tube 14 is a stainless steel metal tube, a valve 19 is arranged at one end, away from the sealing chamber 4, of the sealing tube 14, and air at the right end of the sealing tube 14 circulates after the valve 19 is opened, so that the piston block 20 can normally slide.

A piston block 20 is connected in a sealing tube 14 in a sliding manner, a connecting rod 22 is fixedly connected on the piston block 20, a plurality of permanent magnetic sliders 23 are fixedly inserted on the connecting rod 22 in a penetrating manner, the permanent magnetic sliders 23 are arranged at equal intervals, a plurality of magnetic sliding sleeves 15 are sleeved on the sealing tube 14 in a sliding manner, rollers 21 are rotatably connected to the bottom sides of the magnetic sliding sleeves 15, the rollers 21 are abutted against the bottom wall of the guide rail groove 18, the resistance of the magnetic sliding sleeves 15 in sliding is reduced through the rolling action of the rollers 21, so that the foot supporting pad 16 can slide back and forth stably, the magnetic sliding sleeves 15 correspond to the permanent magnetic sliders 23 one by one, the foot supporting pad 16 is fixedly connected on the magnetic sliding sleeve 15, a strip-shaped anti-skidding line is arranged on the upper surface of the foot supporting pad 16, a sealing chamber 4 is fixedly connected on the supporting table 3, hydraulic oil is injected into the sealing chamber 4, a, the sealing rubber ring is tightly attached to the inner wall of the sealing chamber 4, and the up-and-down sliding of the piston plate 12 drives the hydraulic oil in the sealing chamber 4 to flow, so that the hydraulic oil amount in the sealing pipe 14 is controlled.

The piston plate 12 is symmetrically and fixedly connected with a fixed rod 10, the fixed rod 10 is rotatably connected with a rotating roller 7, the rotating roller 7 is provided with a sponge cushion, two sides of a sealed chamber 4 are provided with limit mechanisms, each limit mechanism comprises an elastic rod 9, one end of each elastic rod 9 is fixedly connected with the outer side wall of the sealed chamber 4, one end of each elastic rod 9, which is far away from the sealed chamber 4, is fixedly connected with a baffle 8, a non-woven fabric disinfection bag is arranged on each baffle 8, the non-woven fabric disinfection bag is arranged to ensure the aseptic contact of the legs of a patient and avoid wound bacterial infection, the baffles 8 on two sides limit the legs of the patient, the legs are prevented from accidentally sliding off from two sides of the rotating roller 7 in the operation process, unnecessary operation risks are reduced, the inner wall of the sealed chamber 4 is fixedly provided with an electromagnet 11, the support table 3, the electromagnet 11 is electrified, and through mutual repulsion between the electromagnet 11 and the permanent magnet 13, thereby driving the piston plate 12 to slide downwards, further extruding the hydraulic oil in the sealing chamber 4 to flow towards the sealing pipes 14 at the two sides, thereby pushing the piston block 20 inside the sealing tube 14 to slide outwards, and by rotating the current adjusting knob 17 in the opposite direction, the electromagnet 11 is electrified in the opposite direction, so that the electromagnet 11 and the permanent magnet 13 attract each other, the piston plate 12 slides upwards, the hydraulic oil in the sealing tube 14 is pumped into the sealing chamber 4 again, so that the magnetic sliding sleeve 15 drives the foot support pad 16 to move leftwards, the permanent magnet 13 is fixedly connected in the piston plate 12, the permanent magnet 13 is arranged right below the electromagnet 11, thereby ensuring that the magnetic force generated between the sealing tube and the sealing chamber is strongest, and the sealing tube 14 passes through one end of the guide rail groove 18 and is communicated with the sealing chamber 4.

In the invention, the leg of a patient is put on the rotating roller 7, the foot is stepped on the foot support pad 16, then the valve 19 at the right end of the sealing tube 14 is opened, the electromagnet 11 is electrified through the forward rotation current adjusting knob 17, the electromagnet 11 and the permanent magnet 13 generate mutual repulsion action, so that the piston plate 12 is driven to slide downwards, hydraulic oil in the sealing chamber 4 is further extruded to flow to the sealing tubes 14 at two sides, so that the piston block 20 in the sealing tube 14 is pushed to slide outwards, under the connecting action of the connecting rod 22, the permanent magnet sliding block 23 pulls the magnetic sliding sleeve 15 to slide, the resistance when the magnetic sliding sleeve 15 slides is reduced through the rolling action of the roller 21, the foot support pad 16 drives the foot to move, the bending angle of the joint is adjusted, the current electrification of the electromagnet 11 is opposite through the reverse rotation current adjusting knob 17, so that the electromagnet 11 and the permanent magnet 13 generate mutual attraction action, make piston plate 12 upwards slide, with the hydraulic oil in the sealed tube 14 pump sending to seal chamber 4 again in for magnetism sliding sleeve 15 drives foot and holds in the palm 16 and remove left, only need close valve 19 after the regulation finishes, rotatory current adjust knob 17 makes electro-magnet 11 outage, can carry out articular angle to maintain, the dirty noise pollution of whole accommodation process, the reaction is rapid, has saved unnecessary operation idle time.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides an orthopedic joint replacement surgery device, includes bed board (1), its characterized in that, one side of bed board (1) is connected with brace table (3) through fixing bolt, guide rail groove (18) have been seted up to the symmetry on brace table (3), be equipped with sealed tube (14) in guide rail groove (18), sliding connection has piston block (20) in sealed tube (14), fixedly connected with connecting rod (22) on piston block (20), fixed interlude has a plurality of permanent magnetism slider (23) on connecting rod (22), and is a plurality of permanent magnetism slider (23) are equidistant setting, sliding sleeve has been cup jointed on sealed tube (14) a plurality of magnetism sliding sleeves (15), and is a plurality of magnetism sliding sleeve (15) and a plurality of permanent magnetism slider (23) one-to-one, fixedly connected with foot holds in the palm pad (16) on magnetism sliding sleeve (15), the upper surface of foot holds in the palm the pad (16) is equipped with the bar antiskid, support table (3) and go up fixedly connected with seal chamber (4), it has hydraulic oil to annotate in seal chamber (4), sliding connection has piston plate (12) in seal chamber (4), symmetry fixedly connected with dead lever (10) on piston plate (12), it is connected with live-rollers (7) to rotate on dead lever (10), be equipped with the foam-rubber cushion on live-rollers (7), seal chamber (4) both sides are equipped with stop gear, the inner wall fixed mounting of seal chamber (4) has electro-magnet (11), fixedly connected with permanent magnet (13) in piston plate (12), permanent magnet (13) are located electro-magnet (11) and set up under, the one end that guide rail groove (18) was passed in sealed tube (14) is linked together with seal chamber (4).

2. The orthopedic joint replacement surgical device according to claim 1, characterized in that the limiting mechanism comprises an elastic rod (9), one end of the elastic rod (9) is fixedly connected to the outer side wall of the sealed chamber (4), one end of the elastic rod (9) far away from the sealed chamber (4) is fixedly connected with a baffle (8), and a non-woven fabric disinfection bag is arranged on the baffle (8). .

3. The orthopaedic joint replacement surgery device according to claim 1, wherein a support rod (5) is symmetrically and fixedly connected to the bottom side of the support platform (3), and a brake universal wheel (6) is mounted at the bottom end of the support rod (5).

4. An orthopaedic joint replacement surgical device according to claim 1, wherein said support table (3) is provided with a current adjustment knob (17), said current adjustment knob (17) being electrically connected to the electromagnet (11).

5. An orthopaedic joint replacement surgical device according to claim 1, wherein a roller (21) is rotatably connected to the bottom side of the magnetic sliding sleeve (15), the roller (21) resting against the bottom wall of the guide groove (18).

6. An orthopaedic joint replacement surgical device according to claim 1, wherein the sealing tube (14) is a stainless steel metal tube, and a valve (19) is provided at the end of the sealing tube (14) remote from the sealing chamber (4).

7. An orthopaedic joint replacement surgery device according to claim 1, wherein a plurality of strip-shaped air bag cushions (2) are arranged on the bed plate (1), and a 10-15mm gap is reserved between every two strip-shaped air bag cushions (2).

8. An orthopaedic joint replacement surgical device according to claim 1, wherein the piston plate (12) is provided with a sealing rubber ring which is in close contact with the inner wall of the sealing chamber (4).