CN109259817B

CN109259817B - Bone saw device for lower limbs in orthopedic surgery

Info

Publication number: CN109259817B
Application number: CN201811046619.0A
Authority: CN
Inventors: 唐志良; 杨世东; 高娟; 刘希明; 郑德辉
Original assignee: Individual
Current assignee: Tang Zhiliang
Priority date: 2018-09-08
Filing date: 2018-09-08
Publication date: 2020-12-15
Anticipated expiration: 2038-09-08
Also published as: CN109259817A

Abstract

The invention discloses a bone saw device for lower limbs in orthopedic surgery, which comprises a floor, a support frame, a lower limb fixing assembly, a bone saw assembly, a control device and a power supply, wherein the support frame comprises a telescopic strut and a cross beam; the lower limb fixing assembly comprises an upper fixing device, a lower fixing device and a bracket; the bone saw component comprises a driving motor, a fixing plate, a driven gear and a saw blade; the control device comprises a controller, a processor and a remote controller; the bottom plate is provided with a cleaning device and a waste liquid collecting device, the controller is connected with the telescopic support and the driving motor, and the processor, the remote controller and the controller are connected; the power supply provides power for the telescopic support and the driving motor; the lower limb bone sawing machine is simple in structure, reasonable in design, capable of accurately sawing bones of lower limb bones of patients, high in safety, reliability and stability and suitable for large-scale popularization.

Description

Bone saw device for lower limbs in orthopedic surgery

Technical Field

The invention relates to the technical field of medical instruments, in particular to a bone saw device for lower limbs in bone surgery.

Background

The orthopedic surgery is one of the most common departments in all hospitals, mainly studies the anatomy, physiology and pathology of the skeletal muscle system, and maintains and develops the normal form and function of the system by using medicines, operations and physical methods. With the change of times and society, the disease spectrum of orthopedic surgery injuries has changed obviously, for example, diseases such as osteoarticular tuberculosis, osteomyelitis, poliomyelitis and the like are reduced obviously, and injuries caused by traffic accidents are increased obviously.

Bones are the hard organs that make up the bones in vertebrates and function to move, support and protect the body, produce red and white blood cells, and store minerals. The skeleton is composed of various shapes and has complex internal and external structures, so that the skeleton can keep hard while reducing the weight. One of the components of the skeleton is mineralized skeleton tissue, and the inside of the skeleton is a hard honeycomb-shaped three-dimensional structure; other tissues include bone marrow, periosteum, nerves, blood vessels, and cartilage. The bones of the human body serve to support the body and are part of the body's motion system. Adults have 206 bones that are typically connected by joints and ligaments.

When partial bone necrosis and drug therapy do not act, the bone is cut off as required, and during operation, a medical saw is usually prepared for doctors to use, and partial necrotic tissue is cut off by the medical saw; currently, there are two types of bone saws that are operated manually and electrically, but the manual bone saw needs to consume a long time to operate and easily aggravates the fatigue of medical staff, while the electric bone saw is used for sawing bones, the staff is difficult to control the cutting angle and force of the bone saw, and unnecessary injuries are easily caused to patients.

Disclosure of Invention

Aiming at the technical problems, the invention provides the bone saw device for the lower limb in the orthopedic surgery, which is convenient to use, safe and efficient.

The technical scheme of the invention is as follows: a bone saw device for lower limbs in orthopedic surgery mainly comprises a floor, a support frame, a lower limb fixing assembly, a bone saw assembly, a control device and a power supply, wherein the support frame comprises a telescopic support column and a cross beam; the lower limb fixing assembly comprises an upper clamping device, a lower clamping device and a bracket; the bone saw component comprises a driving motor, a fixing plate, a driven gear and a saw blade; the control device comprises a controller, a processor and a remote controller; the bottom plate is provided with a cleaning device and a waste liquid collecting device, the cleaning device is used for cleaning the wound of the patient, and the waste liquid collecting device is used for collecting cleaning waste liquid; the two telescopic support columns are respectively arranged on two sides of the middle part of the upper surface of the bottom plate, the cross beam is arranged at the top ends of the two telescopic support columns, a rack rail is arranged on the cross beam, and a sliding assembly is movably arranged on the cross beam; the upper clamping device comprises a fixing frame, an upper fixing splint and a telescopic cylinder I, the lower clamping device comprises a lower fixing splint and a telescopic cylinder II, and the bracket comprises a telescopic cylinder III and an arc-shaped supporting plate; the fixing frame is arranged on the bottom plate and located at the front end of the supporting frame, the first telescopic cylinder is vertically and downwards arranged on the inner side of the top of the fixing frame, the upper fixing clamp plate is arranged at the lower end of the first telescopic cylinder, the second telescopic cylinder is vertically and upwards arranged on the bottom plate, the lower fixing clamp plate is arranged at the upper end of the second telescopic cylinder, the upper fixing clamp plate and the lower fixing clamp plate are located on the same vertical line, the third telescopic cylinder is arranged on the bottom plate and located at the rear end of the supporting frame, the arc-shaped support plate is arranged on the third telescopic cylinder, support plates are arranged on the upper fixing clamp plate and the lower fixing clamp plate respectively, the number of the support plates is 6, the 6 support plates are uniformly arranged on the fixing clamp plates and the lower fixing clamp plate, adjusting rods are arranged at the joints of the 6 support plates, the patients with different body types can be fixed, and; the driving motor is arranged on the sliding assembly, the fixing plate is arranged at the lower end of the sliding assembly, the driven gear is movably arranged at the lower end, and the saw blade is used for connecting the driving motor and the driven gear; the controller is commercially available, the controller is connected with the telescopic support, the telescopic rod and the driving motor, and the processor, the remote controller and the controller are connected; the power supply provides power for the telescopic support, the telescopic rod and the driving motor.

Further, the sliding assembly comprises a sliding sleeve, a connecting sleeve and a movable rod, the sliding sleeve is arranged on the cross beam in a sliding mode, an adjusting bolt is arranged on the sliding sleeve and meshed with the rack rail, the connecting sleeve is arranged on the side face of the sliding sleeve, an adjusting rack is arranged on the connecting sleeve in a sleeved mode, the movable rod is arranged inside the connecting sleeve in a sleeved mode, a rack is arranged on the movable rod and meshed with the adjusting rack, the driving motor is arranged at the lower end of the movable rod, the distance between the bone saw assembly and a patient is adjusted through the sliding assembly, and safety and reliability of the device are improved.

Further, the sliding assembly lower surface is provided with the backplate, and the backplate has two, and two backplates are located the left and right sides of bone saw subassembly respectively, prevent to saw the bone in-process, and staff and saw blade contact cause the injury to the staff.

Further, belt cleaning device includes cleaning solution case, handle, cleaning head, and the cleaning solution case sets up on the bottom plate, and the inner chamber and the cleaning solution case of handle are connected, and the junction is provided with the micropump, sets up flow rate regulator on the handle, and the cleaning head is connected with the inner chamber of handle, and cleaning head border department is provided with the aseptic cotton ring, uses the cleaning head to wash patient's wound, and the clearance is cleaned with the aseptic cotton ring maliciously to stubborn spot on the wound.

Further, the waste liquid collecting device comprises a collecting box and a collecting disc, the collecting box is arranged on the bottom plate, an ultraviolet sterilizer and a filter are arranged inside the collecting box, the collecting disc is connected with the collecting box, cleaning waste liquid in the cleaning process enters the collecting box through the collecting disc, is firstly sterilized and disinfected through the ultraviolet sterilizer, and is filtered through the filter, so that the bacterial propagation in the cleaning waste liquid is avoided, and the harm is caused to workers.

Further, driven gear has two, and two driven gear pass through connecting plate swing joint in the fixed plate left and right sides, are provided with between two connecting plates and adjust pole two, and the staff of being convenient for adjusts the bone saw incision mouth according to patient injured position, improves the accuracy of treatment.

The working principle of the invention is as follows: when in use, the device is moved to a patient bed, the injured lower limb of the patient is placed on the lower limb fixing component, and the injured part of the patient is positioned among the upper fixing device, the lower fixing device and the bracket; the power supply is switched on, the remote controller is operated, the first telescopic cylinder, the second telescopic cylinder and the third telescopic cylinder are adjusted to be started, the lower limb of the patient is preliminarily fixed, the first controller controls the starting of the first adjusting rod to further fix the lower limb of the patient, the controller controls the starting of the telescopic strut, the telescopic strut drives the cross beam to move downwards, the bone saw assembly is pushed to reach the position right above the affected part of the patient, the adjusting bolt is rotated, and the position of the bone saw assembly is adjusted; slowly rotate and adjust the tooth post for the movable rod promotes the bone saw subassembly and saws the bone and handle, and belt cleaning device washs, disinfection treatment to patient's wound, and waste liquid collection device collects washing waste liquid, and disinfection treatment.

Compared with the prior art, the invention has the beneficial effects that: the cleaning device cleans and disinfects the wound of the patient to prevent the wound infection; the waste liquid collecting device can collect and treat the cleaning waste liquid to prevent bacteria from spreading; the arrangement of the supporting splint can fix the lower limbs of the patient and play a role in compression hemostasis; due to the arrangement of the guard plate, the bone chips and the cleaning liquid are prevented from splashing to pollute the device in the bone sawing process, and meanwhile, the harm to workers is avoided; set up two driven gear, two driven gear pass through connecting plate swing joint in the fixed plate left and right sides, are provided with between two connecting plates and adjust pole two, and the staff of being convenient for adjusts the bone saw according to patient injured position, improves the accuracy of treatment, and the setting of slip subassembly, the medical personnel of being convenient for control the bone saw subassembly, the security of improvement device.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a schematic view of the structure of the cleaning apparatus of the present invention;

FIG. 4 is a schematic view of the structure of the waste liquid collecting apparatus of the present invention;

FIG. 5 is a schematic view of the connection structure of the sliding assembly and the cross member of the present invention;

FIG. 6 is a schematic view showing a coupling structure of an upper clamping device and a lower clamping device according to the present invention;

FIG. 7 is a schematic structural view of the bracket of the present invention;

FIG. 8 is a schematic view of the connection structure of the driven gear and the fixed plate of the present invention;

FIG. 9 is a control block diagram of the present invention;

wherein, 1-a bottom plate, 11-a cleaning device, 110-a cleaning liquid box, 111-a handle, 112-a cleaning head, 113-a micropump, 12-a waste liquid collecting device, 120-a collecting box, 121-a collecting tray, 122-an ultraviolet sterilizer, 123-a filter plate, 2-a supporting frame, 21-a telescopic support column, 22-a beam, 220-a rack, 23-a sliding component, 230-a sliding sleeve, 231-a connecting sleeve, 232-a movable rod, 233-an adjusting bolt, 234-an adjusting rack column, 235-a rack, 3-a lower limb fixing component, 31-an upper clamping device, 310-a fixing frame, 311-an upper fixing clamping plate, 312-a telescopic cylinder I, 32-a lower clamping device, 320-a fixing clamping plate, 321-a telescopic cylinder II, a lower clamping device, a, 33-a bracket, 330-a telescopic cylinder III, 331-an arc-shaped supporting plate, 34-a clamping plate, 35-a first adjusting rod, 4-a bone saw component, 41-a driving motor, 42-a fixing plate, 43-a driven gear, 44-a saw blade, 45-a protecting plate, 46-a connecting plate, 47-a second adjusting rod, 5-a control device, 51-a controller, 52-a processor, 53-a remote controller and 6-a power supply.

Detailed Description

Example (b): as shown in fig. 1, 2, 3 and 4, the bone saw device for lower limbs in bone surgery mainly comprises a floor board 1, a support frame 2, a lower limb fixing component 3, a bone saw component 4, a control device 5 and a power supply 6; the cleaning device 11 and the waste liquid collecting device 12 are arranged on the bottom plate 1, the cleaning device 11 is used for cleaning wounds of a patient, the cleaning device 11 comprises a cleaning liquid box 110, a handle 111 and a cleaning head 112, the cleaning liquid box 110 is arranged on the bottom plate 1, the inner cavity of the handle 111 is connected with the cleaning liquid box 110, a micro pump 113 is arranged at the joint, a flow rate regulator is arranged on the handle 111, the cleaning head 112 is connected with the inner cavity of the handle 111, and a sterilized cotton ring is arranged at the edge of the cleaning head 112; the waste liquid collecting device 12 is used for collecting cleaning waste liquid; the waste liquid collecting device 12 comprises a collecting box 120 and a collecting disc 121, the collecting box 120 is arranged on the bottom plate 1, an ultraviolet sterilizer 122 and a filter plate 123 are arranged inside the collecting box 120, and the collecting disc 121 is connected with the collecting box 120;

as shown in fig. 5, the support frame 2 includes a telescopic strut 21, a cross member 22; the number of the telescopic struts 21 is two, the two telescopic struts 21 are respectively arranged on two sides of the middle part of the upper surface of the bottom plate 1, the cross beam 22 is arranged at the top ends of the two telescopic struts 21, a rack 220 is arranged on the cross beam 22, a sliding assembly 23 is movably arranged on the cross beam 22, the sliding assembly 23 comprises a sliding sleeve 230, a connecting sleeve 231 and a movable rod 232, the sliding sleeve 230 is slidably arranged on the cross beam 22, an adjusting bolt 233 is arranged on the sliding sleeve 230, the adjusting bolt 233 is meshed with the rack 220, the connecting sleeve 231 is arranged on the side surface of the sliding sleeve 230, an adjusting rack 234 is arranged on the connecting sleeve 231, the movable rod 232 is sleeved inside the connecting sleeve 231, a rack 235 is arranged on the movable rod 232, the rack 235 is meshed with the adjusting rack 234;

as shown in fig. 6 and 7, the lower limb fixing assembly 3 comprises an upper clamping device 31, a lower clamping device 32 and a bracket 33; the upper clamping device 31 comprises a fixed frame 310, an upper fixed splint 311 and a first telescopic cylinder 312, the lower clamping device 32 comprises a lower fixed splint 320 and a second telescopic cylinder 321, and the bracket 33 comprises a third telescopic cylinder 330 and an arc-shaped supporting plate 331; the fixing frame 310 is arranged on the bottom plate 1 and located at the front end of the supporting frame 2, the first telescopic cylinder 312 is vertically and downwards arranged on the inner side of the top of the fixing frame 310, the upper fixing clamp plate 311 is arranged at the lower end of the first telescopic cylinder 312, the second telescopic cylinder 321 is vertically and upwards arranged on the bottom plate 1, the lower fixing clamp plate 320 is arranged at the upper end of the second telescopic cylinder 321, the upper fixing clamp plate 311 and the lower fixing clamp plate 320 are positioned on the same vertical line, the third telescopic cylinder 330 is arranged on the bottom plate 1 and is located at the rear end of the supporting frame 2, the arc-shaped supporting plate 331 is arranged on the third telescopic cylinder 330, the upper fixing clamp plate 311 and the lower fixing clamp plate 320 are both provided with the first supporting

plates

34, 6 supporting plates 34 are both uniformly arranged on the fixing clamp plate 311 and the lower fixing clamp plate 320, and the connection positions of the 6 supporting plates 34 and the upper fixing clamp plate;

as shown in fig. 8, the bone saw assembly 4 includes a driving motor 41, a fixing plate 42, a driven gear 43, a saw blade 44; the driving motor 41 is fixedly arranged on the sliding assembly 23, the fixing plate 42 is arranged at the lower end of the sliding assembly 23, the driven gear 43 is movably arranged at the lower end of the driving motor 42, the saw blade 44 is used for connecting the driving motor 41 and the driven gear 43, the lower surface of the sliding assembly 23 is provided with two guard plates 45, the two guard plates 45 are respectively positioned at the left side and the right side of the bone saw assembly 4, the number of the driven gears 43 is two, the two driven gears 43 are movably connected at the left side and the right side of the fixing plate 42 through the connecting plate 46, and a second adjusting rod 47 is;

as shown in fig. 1, the control device 5 includes a controller 51, a processor 52, and a remote controller 53; the controller 51 is commercially available, the controller 51 is connected with the micro pump 113, the ultraviolet sterilizer 122, the telescopic strut 21, the telescopic rod 221, the first adjusting rod 35, the driving motor 41 and the second adjusting rod 47, and the processor 52 and the remote controller 53 are connected with the controller 51; the power supply 6 provides power for the micro pump 113, the ultraviolet sterilizer 122, the telescopic strut 21, the telescopic rod 221, the first adjusting rod 35, the driving motor 41 and the second adjusting rod 47.

The working principle of the invention is as follows: in use, the device is moved to a patient's bed, the injured lower limb of the patient is placed on the lower limb fixing assembly 3, and the injured part of the patient is located between the upper fixing device 31, the lower fixing device 32 and the bracket 33; switching on a power supply 6, operating a remote controller 53, adjusting a first telescopic cylinder 312, a second telescopic cylinder 321 and a third telescopic cylinder 330 to start, primarily fixing the lower limb of the patient, controlling a first adjusting rod 35 to start by a controller 51, further fixing the lower limb of the patient, controlling a telescopic strut 21 to start by the controller 51, driving a cross beam 22 to move downwards by the telescopic strut 21, pushing a bone saw component 4 to reach the position right above the affected part of the patient, rotating an adjusting bolt 233, and adjusting the position of the bone saw component 4; slowly rotate regulation tooth post 234 for movable rod 232 promotes bone saw subassembly 4 and saws the bone and handles, and belt cleaning device 11 washs, disinfection treatment to patient's wound, and waste liquid collection device 12 collects washing waste liquid, and disinfection treatment.

Examples of clinical applications

In a hospital in the city, 38 patients needing bone sawing treatment are collected clinically in 2018, from 25 days in 2 months to 5 days in 6 months, and 38 patients are randomly divided into two groups with equal number of people, namely 19 patients in an experimental group and 19 patients in a control group; 19 patients in the experimental group adopt the bone sawing treatment of the invention, and 19 patients in the control group adopt the bone saws in the prior art to perform the bone sawing treatment; after treatment is finished, investigating and analyzing the wound flatness, the wound bleeding amount, the postoperative wound infection condition and the bone sawing position accuracy of the patients of the experimental group and the control group; the results show that in the 19 patients in the control group, the limbs of 2 patients are shaken in the treatment process, so that obvious gaps appear on the wound and the bone saw dislocation phenomenon appears, and in the operation process of 1 patient, the bleeding amount is large, and the wound of 3 patients is infected after the operation; the incision of the bone saw of 19 patients in the experimental group is relatively flat, only a small amount of bleeding is generated in the operation process, the condition of wound infection does not occur after the operation, the position of the bone saw is accurate, and the dislocation phenomenon does not occur.

In conclusion, the invention has extremely high safety, reliability and accuracy, can relieve the pain of the patient, shortens the recovery time of the patient after the operation, and is suitable for popularization in large quantity.

Claims

1. The bone saw device for the lower limbs in the orthopedic surgery is characterized by mainly comprising a floor (1), a support frame (2), a lower limb fixing component (3), a bone saw component (4), a control device (5) and a power supply (6), wherein the support frame (2) comprises a telescopic support column (21) and a cross beam (22); the lower limb fixing component (3) comprises an upper clamping device (31), a lower clamping device (32) and a bracket (33); the bone saw component (4) comprises a driving motor (41), a fixing plate (42), a driven gear (43) and a saw blade (44); the control device (5) comprises a controller (51), a processor (52) and a remote controller (53); the bottom plate (1) is provided with a cleaning device (11) and a waste liquid collecting device (12), the cleaning device (11) is used for cleaning the wound of a patient, and the waste liquid collecting device (12) is used for collecting cleaning waste liquid; the number of the telescopic supporting columns (21) is two, the two telescopic supporting columns (21) are respectively arranged on two sides of the middle part of the upper surface of the bottom plate (1), the cross beam (22) is arranged at the top ends of the two telescopic supporting columns (21), a rack (220) is arranged on the cross beam (22), and a sliding assembly (23) is movably arranged on the cross beam (22); the upper clamping device (31) comprises a fixed frame (310), an upper fixed splint (311) and a first telescopic cylinder (312), the lower clamping device (32) comprises a lower fixed splint (320) and a second telescopic cylinder (321), and the bracket (33) comprises a third telescopic cylinder (330) and an arc-shaped supporting plate (331); the fixing frame (310) is arranged on the bottom plate (1) and located at the front end of the support frame (2), the first telescopic cylinder (312) is vertically downwards arranged on the inner side of the top of the fixing frame (310), the upper fixing clamp plate (311) is arranged at the lower end of the first telescopic cylinder (312), the second telescopic cylinder (321) is vertically upwards arranged on the bottom plate (1), the lower fixing clamp plate (320) is arranged at the upper end of the second telescopic cylinder (321), the upper fixing clamp plate (311) and the lower fixing clamp plate (320) are located on the same vertical line, the third telescopic cylinder (330) is arranged on the bottom plate (1) and located at the rear end of the support frame (2), and the arc-shaped supporting plate (331) is arranged on the third telescopic cylinder (330); the upper fixing clamp plate (311) and the lower fixing clamp plate (320) are respectively provided with a supporting clamp plate (34), 6 supporting clamp plates (34) are uniformly arranged on the inner sides of the fixing clamp plate (311) and the lower fixing clamp plate (320), and the connecting parts of the 6 supporting clamp plates (34) and the upper fixing clamp plate (311) and the lower fixing clamp plate (320) are respectively provided with a first adjusting rod (35); the driving motor (41) is arranged on the sliding assembly (23), the fixing plate (42) is arranged at the lower end of the sliding assembly (23), the driven gear (43) is movably arranged at the lower end of the fixing plate (42), and the saw blade (44) is used for connecting the driving motor (41) and the driven gear (43); the controller (51) is connected with the telescopic support column (21), the telescopic rod (221) and the driving motor (41), and the processor (52) and the remote controller (53) are connected with the controller (51); the power supply (6) provides power for the telescopic support column (21), the telescopic rod (221) and the driving motor (41).

2. The bone saw device for lower limbs in orthopedic surgery is characterized in that the sliding assembly (23) comprises a sliding sleeve (230), a connecting sleeve (231) and a movable rod (232), the sliding sleeve (230) is slidably arranged on the cross beam (22), an adjusting bolt (233) is arranged on the sliding sleeve (230), the adjusting bolt (233) is meshed with the rack (220), the connecting sleeve (231) is arranged on the side surface of the sliding sleeve (230), an adjusting toothed column (234) is arranged on the connecting sleeve (231), the movable rod (232) is sleeved inside the connecting sleeve (231), a rack (235) is arranged on the movable rod (232), the rack (235) is meshed with the adjusting toothed column (234), and the active motor (41) is arranged at the lower end of the movable rod (232).

3. An orthopedic bone saw device for the lower extremities of claim 1 wherein the lower surface of the sliding assembly (23) is provided with two guards (45), the two guards (45) being located on the left and right sides of the bone saw assembly (4).

4. The bone saw device for the lower limbs in the orthopedic surgery is characterized in that the cleaning device (11) comprises a cleaning liquid tank (110), a handle (111) and a cleaning head (112), the cleaning liquid tank (110) is arranged on the bottom plate (1), an inner cavity of the handle (111) is connected with the cleaning liquid tank (110), a micro pump (113) is arranged at the joint, a flow rate regulator is arranged on the handle (111), the cleaning head (112) is connected with the inner cavity of the handle (111), and a disinfection cotton ring is arranged at the edge of the cleaning head (112).

5. Bone saw device for the lower extremities of the orthopedic surgery according to claim 1, characterized in that the waste liquid collecting device (12) comprises a collecting box (120) and a collecting tray (121), the collecting box (120) is arranged on the base plate (1), inside the collecting box (120) there are uv disinfectors (122) and filter plates (123), the collecting tray (121) is connected with the collecting box (120).

6. Bone saw device for the lower extremities of the orthopaedic sector according to claim 1, characterized in that said support frame (2) is provided with a guard (45).